2024-03-29T09:23:13Zhttps://repository.nwu.ac.za:443/oai/requestoai:repository.nwu.ac.za:10394/147242018-03-02T10:27:42Zcom_10394_26463col_10394_26474
Screening for misconceptions and assessing these by using metacognition in a mathematics course for N2 engineering students at a Northern Cape FET college
Beukes, Susan Cecilia
This study investigated misconceptions in Algebra of students enrolled for a N2 Engineering certificate
at a Further Education and Training College. The study aimed to investigate these students’
misconceptions relating to Algebra which prohibited them to successfully complete their artisanship.
The purpose of the research was to determine (i) the nature of these misconceptions, and (ii) the
value of screencasts as a technology-enhanced learning (TEL) tool to improve instruction. The research
gap that the researcher addressed related to the Mathematics misconceptions that the N2 students
had, and whether these misconceptions could be adequately addressed by screencasts. The
study method used was a case study design and methodology while simultaneously collecting quantitative
and qualitative data. The findings encompassed the determining of main Mathematics misconceptions,
producing screencasts, and assessing the screencasts with the intended target group. The
study followed a four-phase strategy of testing, interviewing and analysing, and reflection based on
qualitative and quantitative research strategies. During the quantitative research the research participants
completed a biographical questionnaire, as well as a customised diagnostic Algebra test. The
study sample comprised two groups from different trimesters at a rural FET college in the Northern
Cape in Kathu, South Africa. The total population of full-time N2 Engineering students related to 113
participants. The diagnostic test comprised twelve questions from the three main Algebra concepts
relating to: (i) exponents, (ii) equations, and (iii) factorisation. The same customised diagnostic test
confirmed the misconceptions within the same group. Six questions from the customised diagnostic
test identified the central misconceptions. The researcher consequently designed, developed, implemented
and evaluated screencasts with the intended student population according to the design principles
identified during the study. The six questions formed the basis of a second diagnostic test,
which was used in phase three with interviews of ten research participants as part of phase 4 of the
evaluation of the screencasts. At the end of the second trimester students were ask to complete a
questionnaire regarding their use and perceptions of the screencasts—23 participants completed this
voluntary questionnaire. At the end of the trimester ten participants were asked to explain their
method of calculations during a walk-through evaluation while answering Algebra problems. The results
indicated a number of misconception categories: (i) The main reason for misconceptions relating
to equations was the participants’ inadequate understandings of the basic concepts of multiply
methods used in equations; (ii) Index laws seemed to be the biggest misconception where participants
demonstrated insufficient understanding of the laws; and (iii) The participants did not comprehend
the basic concepts of factorisation—they could not identify which method to use while factorising.
The qualitative findings indicate that the participants found the screencasts valuable when they
prepared for tests and examinations, as well as when they did not understanding a basic Mathematics
concept. Access to technology in rural areas remains an obstacle to integrate technology learning
tools on a large scale at the FET College.
2015
Thesis
en
http://hdl.handle.net/10394/14724
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14724/1/Beukes_SC_2015.pdf
fd80507bd16a768a3921dc3e3a7a1300
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14724/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14724/3/Beukes_SC_2015.pdf.txt
0b2a70a89d090d3aea47224e7887f9aa
Misconceptions
Mathematics
Case study research
Metacognition strategies
Screencast
Student profile
Algebra
Blended learning
Technology-enhanced learning
Wanopvattings
Wiskunde
Gevalle studie navorsings
Metakognisie
Screencast (skermsteun)
Studenteprofiel
Gemengde leer
Tegnologie-ondersteunde leer
oai:repository.nwu.ac.za:10394/423462023-11-24T01:12:39Zcom_10394_26463col_10394_26473
Machine learning and deep learning techniques for natural language processing with application to audio recordings
Motitswane, Olorato Glendah
Montshiwa, T.V.
Many debt collection companies need to rely on research focusing on data analysis methods that
can assist them to analyse their unstructured data which holds information that could help them to
better assign their collection agents to high repayment probable accounts. These types of accounts
are characterised by the debtor’s ability to repay which comprise their employment status among
many other driving factors. Unfortunately, analysing unstructured data is extremely challenging
as it comes in natural forms such as audio recordings, videos and images, to mention a few. The aim of this study was to seek for data analysis methods that can accurately predict the employment
status of the debtor using audio call recordings. Transcription of the recordings to text was done
using Automatic Speech Recognition (ASR), followed by data cleaning and the transcribed text
was represented in numerical form using the Term Frequency-Inverse Document Frequency (TF-
IDF) and the Count Vectorizer. The study then compared the accuracy of Artificial Neural
Network (ANN) and Naïve Bayes classifiers in predicting the employment status of the debtor. To
evaluate the performance of the ASR transcription method, word error rate (WER) was used, for
text and to compare ANN and Naïve Bayes, the accuracy, recall and F1-Score were used. An
overall WER of 106.93 was archived by the speech recognition ASR method. ANN with TF-IDF
was identified as the best model for predicting employment status from transcribed audio
recordings.
North-West University (South Africa)
2023
Thesis
en
https://orcid.org/0000.0003.3905.1633
http://hdl.handle.net/10394/42346
https://repository.nwu.ac.za/bitstream/10394/42346/1/Motitswane_OG.pdf
da4d88a13dc642345948e44951b835d5
https://repository.nwu.ac.za/bitstream/10394/42346/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/42346/3/Motitswane_OG.pdf.txt
c5fe5e74b866edb53481f58f800b1b01
Natural Language Processing
Automatic Speech Recognition
Term Frequency-Inverse Document Frequency Vectorizer
Count Vectorizer
Data Augmentation
Naïve Bayes
Artificial Neural Network
oai:repository.nwu.ac.za:123456789/406792023-03-08T01:04:30Zcom_10394_26463col_10394_26477
Kriminogene faktore by 'n groep jeugoortreders
Flemming, Magdalena Maria
Bosch, J.G.S.
This paper mainly deals with the identification of the most important criminological
factors that play a part in the establishing of juvenile criminality among a group of
white high school pupils on the East Rand during the period 1980 to 1991. The
identification was done by analysing case studies empirical-descriptively and comparing
these to substantial outcomes in literary studies.
At the outset the relationship between communal disorganization and juvenile criminality
is expounded, followed by the pattern in occurrence and distribution which is statistically
revealed. Subsequently the special characteristics of the juvenile delinquent are brought
into proper relationship with the crime. Then the criminogenic relationship of the
family and school factors are researched.
The cause of juvenile criminality is primarily seated in the personalities of these juvenile
delinquents where, in unique ways the continual influencing of individual-humane and
milieu factors appear and where the specific crime situations, on the other hand, play
a decisive role. The supposition can, in point of fact, be made that the development
of pathological situations in the family as well as at school, generate the most dangerous
development of criminogenic predispositions.
Some significant similarities and the forming of patterns regarding socio-pathological
situations in especially the family and school milieus clearly come to the fore and are
evident from this empirical investigation. The outcome of this is that it forces the role
of the school in a certain direction. The pedagogical treatment of this juvenile delinquent
becomes deterministic to the causes of his crime. The school is compelled to become
more involved in the life of parents and their children.
Only when the school succeeds in involving the parents sufficiently with their children's
whole well being at home and in school, can the above-mentioned pathologic and
criminogenic factors facilitating juvenile criminality be controlled and possibly prevented.
The actualizing there of is of cardinal importance not only to the parties concerned,
but also to the community as a whole.
The value of this regional investigation regarding the appearance and nature of white
juvenile criminality on the East Rand, lies especially in the fact that the pedagogical
players in this region are made aware of the existence and nature of a juvenile criminality
reality in their own backyard thus enabling them to control these prevailing criminal
manifestations of the disease effectively or even avert them.
North-West University (South Africa)
1993
Thesis
other
http://hdl.handle.net/123456789/40679
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40679/1/Flemming_M.M..pdf
8006970116e4ce4b7dc7e1d615c06e44
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40679/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40679/3/Flemming_M.M..pdf.txt
b2815f9316685f79f3e26aaa67e80b48
oai:repository.nwu.ac.za:10394/152372018-03-05T05:50:09Zcom_10394_26463col_10394_26475
Design of a primary off-gas scrubber for a ferro-manganese electric arc furnace process
Fourie, Jethro Paul
Waanders, F.B.
An electric arc furnace makes use of electrical energy in the form of an arc to heat charged material. In the
ferromanganese smelting process the ferric oxide (Fe2O3) and manganese oxide (MnO2) are reduced with coke. The basic reaction that takes place is described in the following equation Fe203 + 2Mn02+ 7C = 2FeMn + 7C0 The high quantity of carbon monoxide (CO) produced in the process, which has a significantly high calorific value, can be used to generate energy to supplement certain areas of the process. Due to the moisture in the charged material, electrolysis takes place within the furnace, generating hydrogen (H2) and oxygen (O2). The high temperature allows a percentage of the carbon monoxide to combust instantly with the available oxygen, which forms carbon dioxide (CO2). The balance of gas in the process is primarily nitrogen (N2), which comes from the air drawn into the furnace, as it is impossible to seal the furnace off perfectly. The oxygen from the air also combusts with the carbon monoxide, however there is always a small percentage of oxygen that does not combust. The following table indicates the percentiles of the different gas compositions within the furnace Gas Composition Percentage (Typical) Percentage (Range) Carbon Monoxide 51.0 % 50.0 - 65.0% Carbon Dioxide 13.0% 10.0 - 20.0% Nitrogen 25.0% 20.0 - 28.0% Hydrogen 8.30% 7.50 - 12.0% Oxygen 2.00 % 0.50 - 3.50 % Methane 0.70% 0.40 - 0.80 % Table 1: Typical gas composition percentages. The power input into the furnace process to induce the reduction of the ferric- and manganese oxide, determines the rate at which the reaction takes place. The power input is most commonly measured in MVA and then multiplied by the furnace power factor, which is a function of the electrode characteristics as an inductor, to convert to MW. The rate at which off-gas is generated does not change significantly with the change in power input, however the dust load in the off-gas stream changes exponentially. Larger particulate is generated with the increase in power, as well as the total mass of dust per cubic meter of gas. The dust loading of the off-gas plays a critical role in the design of an off-gas scrubbing system. The following table indicates the increase in dust load with the increase of power input into the furnace. Power Input [MVA] Dust Emission Rate [μg/s] 30 1082.877 40 2793.574 50 7206.776 60 18591.82 70 47962.61 Table 2: Dust emission rate as a function of furnace power Another critical factor of the scrubbing system design is particle size distribution (PSD). The maximum emission of a plant is dictated by environmental legislation, and needs to be adhered to. The greater the dust load in the gas
stream, the more efficient the scrubbing system needs to be, because small particulate, which are particles with a sub-micron aerodynamic diameter, is more difficult to remove from a gas stream. The greater the dust load per cubic meter, the greater the quantity of the sub-micron particulate, which significantly influences the design of the scrubber. The required increase in efficiency exponentially increases the power consumption of the scrubbing system, which greatly increases supply costs and service requirements of the plant. The following table indicates the particle size distributions Particle Size [μm] Percentage [Typical] < 1.00 20.0% 1.00 - 5.00 40.0% 5.00 - 10.0 20.0% 10.0 - 100.0 15.0% 50.0 - 100.0 4.00% 100.0 - 500.0 1.00 % Table 3: Particle size distribution at 40MW furnace load These parameters are paramount when conducting the front-end engineering of a scrubbing system for this application. Not only are there financial and commercial implications when failing to adhere to acceptable emissions, but the impact on the surrounding environment can detrimental. Diligent and accurate engineering benefits the customer, supplier and the environment, and satisfies environmental legislative requirements.
2014
Thesis
en
http://hdl.handle.net/10394/15237
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15237/1/Fourie_JP.pdf
62ede363a3c4e443651480d057e745d1
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15237/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15237/3/Fourie_JP.pdf.txt
0c1babb60ffa562c3e01373bd9b02689
oai:repository.nwu.ac.za:10394/420922023-08-24T10:02:09Zcom_10394_26463col_10394_26464
City-level law and governance for water security in South Africa
Steenkamp, Rochine Melandri
Du Plessis, Anél
Du Plessis, Willemien
South African cities are experiencing significant water challenges owing to urbanisation, climate change, and a confluence of social, economic, political, technical, and governance problems. These challenges are significantly impacting the provision of urban water services, exacerbating flood and drought risks, and compromising the health of aquatic ecosystems. Hence, cities are expected to engage in proactive planning, preparation, and response measures to address a multitude of threats and challenges to water, to be resilient, sustainable, and secure.
The concept of water security emerges as an essential framework to address diverse and pressing water-related challenges in an integrated manner. This study provides an in-depth analysis of the concept of water security in its generality, and its specific application to urban areas, which is known as urban water security. Through this analysis, the study defines urban water security within the context of South African cities and delineates five dimensions of urban water security which cities may need to take on board in local law, policy, and governance responses. The study evaluates law and governance frameworks according to the following dimensions: access to water and sanitation, the protection of urban aquatic ecosystems (both freshwater and coastal), urban flood and drought risk management, as well as water as a socio-economic good (sustainability).
This study draws on a range of sources applicable to urban (local government) law and development, water law, and environmental and climate change law. The premise of this study is that municipalities have a crucial role to play in achieving water security, by making use of the legal powers and mandates available to them. Through a desktop legal doctrinal and socio-legal analysis, this study appraises the international, African regional, and South African legal frameworks on urban water security. It assesses these legal frameworks for water security and unpacks the extent to which they delineate a role for local government to address water security. From the study it is evident that the role of local government
concerning urban water security, although fragmented, arises from the constitutional, environmental, climate change and water legal frameworks.
The study establishes that this delineated role of local government in addressing water security can be executed through the adoption and implementation of a range of law and governance instruments, including by-laws, strategies, plans, and policies. The study assesses the extent to which municipalities are currently addressing water security through their law and governance instruments by evaluating three selected cities (Durban, Cape Town and Johannesburg) as case studies. The study asserts that cities can go above and beyond what is required by law and policy when it comes to water security through the adoption and implementation of integrated and coordinated policy and regulatory instruments.
North-West University (South Africa).
2023
Thesis
en
https://orcid.org/0000-0003-3380-9087
http://hdl.handle.net/10394/42092
https://repository.nwu.ac.za/bitstream/10394/42092/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/42092/3/Steenkamp_RM.pdf.txt
a7eecda47415686d6c47301837c16a18
https://repository.nwu.ac.za/bitstream/10394/42092/5/Steenkamp_RM.pdf
10af4213d0b5f3dbd3315bd025e3251b
Water security
Local government law
Urban governance
Water law
Environmental law
Climate change
South Africa
Urban water management
oai:repository.nwu.ac.za:10394/81392018-03-02T10:27:43Zcom_10394_26463col_10394_26474
The influence of a learning strategies programme on low achieving black secondary school students' academic achievement
Sprang, Zelbia
The purpose of this study was to determine, by means of a review of literature and an
empirical investigation, the influence of a learning strategies pro!:,rramme on low
achieving Black Secondary School students' academic achievement.
From the review ofliterature and the empirical study it was concluded that the effective
use of learning strategies have an influence on academic achievement defined as Grade
Point Average (GPA). It was also concluded that the effective use ofleaming strategies
can make learning more etTicient and effective.
It was concluded from the literature review that variables such as self-efficacy, intrinsic
values, test anxiety, strategy use and self-regulation have an influence on cO!:,TJlitive
development and a subsequent influence on the efficient use ofleaming strate!:,ries, which
in turn influence academic achievement. The literature review indicated that learning
strategies involve three types of strategies, namely cognitive (such as elaboration and
organisation); metacognitive (strategies used to monitor learning) and resource
management strategies (such as time management, management of one's environment,
exertion of effort and help seeking).
Motivation is also important for effective learning. Motivation processes such as
expectancy, self-efficacy and attributions affect the learner's thoughts positively (when
a learner is highly motivated) or negatively (when the learner lacks motivation). Expectancy (the individual's belief that what he/she desires will follow his/her
involvement in a particular task) motivates the learner to participate in learning tasks
when it is at a high level. A low expectancy level, on the other hand, causes less
involvement as a learner will opt tor non-participation rather than being labelled a
failure. The more successful a learner is, the higher his/her self-efficacy becomes.
Self-eflicacy is a learner's personal beliefs relating to his/her capability ofperfonning
a learning task successfully. High self:efficacy stimulates etTort and persistence when
problems are encountered and is thus a determinant of learning involvement and high
achievement. Learners become involved in particular learning activities because they
regard themselves capable of performing such activities and they tend to avoid activities
perceived as beyond their capabilities. High achievement level associated with high self:
efficacy, is characterised by learning strategy use as the learner will do everything
possible to aid his/her learning so that success is achieved. High achievers develop a
positive outlook in their learning experiences and this affects their attributions.
Attributions, which are defined as the learner's interpretation of the causes of his/her
successes or failures, determine future perfonnance. A highly motivated learner
attributes his/her failures to controllable, internal and unstable causes such as effort,
which enable the learner to work towards improvement. A less motivated learner
attributes his/her failures to stable causes such as aptitude and thus limits the learner's
chances for improvement as aptitude is fixed.
The empirical study indicated that learning strategies influence academic achievement.
The learning strategies (memory, summary and test-taking) which were taught to the
subjects during the experimental treatment are good predictors of academic achievement as these variables contributed significantly to academic achievement.
Potchefstroom University for Christian Higher Education
2001
Thesis
en
http://hdl.handle.net/10394/8139
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/8139/1/Sprang_Z.pdf
8c3ebf7de5938b304d70acb64052e19c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/8139/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/8139/3/Sprang_Z.pdf.txt
b6df2c8a567974e39a56a17be304aa2b
oai:repository.nwu.ac.za:10394/6642018-05-16T06:04:29Zcom_10394_26463col_10394_26479
Emosionele eenwording by pasgetroudes : 'n pastorale studie
Erasmus, Margaretha Magdalena
Lotter, G.A.
It is presently a general conception that marriages are fast going out of fashion. This
tendency is blamed on the high divorce rate all over the world. It is also believed that marriages are not the only accepted ways of having relationships. In order to counsel couples effectively in marriage therapy, the basic building blocks of a marriage have to be kept in mind. The current pre-marital counselling programs are lacking in their ability to create stronger marriages. The following encompassing research question arose: How can emotional oneness concerning newlyweds be improved through the following Scriptural guidelines for leaving of parents (Gen 2:24), cleaving (Gen 2:24)
and becoming one (Gen 2:24)? The methodology used was as follows: In Chapter 2, basic-theoretical perspectives were formulated on how the Word of God explains the importance of leaving, cleaving and becoming one in the process of becoming emotionally one. The basic-theoretical perspectives were constructed
based upon detailed exegesis of Genesis 2:24, as well as cursory exegesis of other
relevant passages. In Chapter 3, meta-theoretical perspectives were formulated by making use of a literature study of the associated disciplines of Physiology, Psychology, Sociology and Law, with specific reference to emotions and marriage itself. An empirical study indicated that there is a real necessity for a good descriptive definition of emotional oneness. In Chapter 4, practical-theoretical guidelines were given as a result of the hermeneutical interaction between the basic-theoretical principles and the metatheoretical perspectives. Five practical guidelines were formulated to characterize an emotional oneness marriage.
In Chapter 5, the researcher finally concludes that the process of leaving, cleaving and becoming one is a continuous process. It is only possible through the help of the Holy Spirit and where both newlyweds are willing to work on their marriage.
North-West University
2004
Thesis
http://hdl.handle.net/10394/664
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/664/1/erasmus_mm.pdf
e9a457299c1c02d8e4f3b56c279febd5
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/664/2/license.txt
ea84a138a4255a788e79c58c0b3cfacb
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/664/3/erasmus_mm.pdf.txt
0b7b8733ede99e5dd06396e6c04d1ed8
Emotions
Oneness
Leaving of parents
Living with your wife
Becoming one flesh
oai:repository.nwu.ac.za:10394/92322020-10-21T10:04:08Zcom_10394_26463col_10394_26478
A critical performance evaluation of the South African Health Facilities Infrastructure Management Programme of 2011/12
Van der Westhuijzen, David Pieter
Schoeman, C.B.
The Health Facilities Infrastructure Management Programme in South Africa aims to ensure an appropriate and sustainable platform for the delivery of health services. Since 1994, the average number of hospital beds has decreased from 4.4 beds per 1 000 people to 2.4 beds per 1 000 people. During the same period, there was no significant reduction in the 1 372 clinic backlog. The evaluation of the performance of the Health Facilities Infrastructure Management Programme was based on a systems approach. This performance evaluation was conducted across four dimensions, with 12 assessment instruments and within 134 assessment parameters. Several of these instruments were developed as part of this study. Actual performance, per assessment parameter, was expressed in terms of a four level project management maturity scale. About one third of the parameters indicated a low level of project management maturity, one third indicating a medium-low level of maturity, with less than 10% judged to have reached maturity. It was found that the Infrastructure Unit in the National Department of Health is solely responsible for addressing more than half of the performance areas described by the assessment parameters. The proposed prioritisation model indicated that 50% of the performance areas needed to be addressed as a matter of urgency. The study concludes with 10 system transformation recommendations aimed at maturity growth in the Infrastructure Unit in the National Department of Health, as well as maturity growth in the Health Facilities Infrastructure Management Programme as a whole. The following key terms are relevant: • Health Facilities Infrastructure Management Programme • Performance evaluation • Infrastructure Unit • National Department of Health of South Africa • Project management maturity • Assessment instruments • Assessment parameters • Prioritisation model
North-West University
2013
Thesis
en
http://hdl.handle.net/10394/9232
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9232/1/Van_der_Westhuijzen_DP.pdf
0fef568c02e9a51046154202d770de12
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9232/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9232/3/Van_der_Westhuijzen_DP.pdf.txt
79f2f3288b7a834b2b65415705ce6b4b
Health Facilities Infrastructure Management Programme
Performance evaluation
Infrastructure Unit
National Department of Health of South Africa
Project management maturity
Assessment instruments
Assessment parameters
Prioritisation model
oai:repository.nwu.ac.za:10394/43712020-08-18T12:26:40Zcom_10394_26463col_10394_26473
Discrimination and its effects in the electricity industry
Molefe, Pinkie Dikeletso
Jackson, Leon Prof.
Jackson, Leon
Aim This study contends and explains why discrimination in the workforce is a growing problem that has affected thousands of organisations, large and small, operating in today's global marketplace. The research is aimed at describing the perceived experiences of discrimination as well as its effects on employees within the organisation. Method Using a qualitative research design, interviews were used to facilitate the informal sharing of experiences amongst employees. The purpose of this was to understand the different experiences employees had and the impact discrimination had on the individual performance within the organisation. Results Results reveal that employees experience three broad categories of activities that led to experiences of discrimination, namely activities that relates to management and supervision, daily interaction between various groups from diverse backgrounds and unfair general human resource functions. Conclusion The results of the empirical study were discussed according to the themes of Supervision/ Management, Human Resources/ Employee relations and Interactions. It was found that employees were exposed to different types of discrimination, which are explored in the literature review.
North-West University
2009
Thesis
http://hdl.handle.net/10394/4371
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4371/1/molefe_pd.pdf
7e301b968fca59bf7c4b3d2deafe610a
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4371/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4371/5/molefe_pd.pdf.txt
4a95346555c17d5f4aa05bf1dbd70646
oai:repository.nwu.ac.za:10394/154802020-11-24T11:24:07Zcom_10394_26463col_10394_26478
Phenotypic and biochemical characterisation of the causal agent of bacterial leaf streak of maize
Nienaber, Jesse Jay
Bezuidenhout, C.C.
Flett, B.C.
Bezuidenhout, J.J.
Maize is the staple food for a majority of people in Southern Africa, but plant diseases are responsible for at least 10% of crop production losses. Bacterial leaf streak (BLS) of maize was first reported in South Africa in 1949 and has not been reported elsewhere. Very little is known about the pathogen involved and therefore it is deemed necessary to compile a characteristic profile for the pathogen to prevent the possibility of major crop losses as a result of this disease.
This study aimed to use biochemical and phenotypic methods to determine the specific characteristics of the causal agent of BLS. Diseased plant material showing symptoms of BLS were collected during the maize production seasons of 2012 and 2013 within South Africa’s maize production regions namely the North West, Free State, Gauteng and Northern Cape provinces. To prevent contamination, maize leaves were surface sterilised thoroughly before bacterial isolation commenced. Sections of the infected maize leaves were placed on GYC agar plates on which yellow, mucoid bacterial colonies after incubation for 24 to 48 hrs. The isolated bacteria were purified and the molecular identification of the bacteria was conducted in a related study. Although literature indicates that Xanthomonas campestris pv. zeae is the causal agent of BLS, pure cultures obtained from maize leaves showing characteristic symptoms of BLS were identified as species of Xanthomonas, Pantoea, and Enterobacter. To elucidate the pathogenicity of the isolated strains, pathogenicity tests based on Koch’s postulates were performed. Results from the pathogenicity tests confirmed that only the isolate Xanthomonas species was capable of inducing the characteristic BLS symptoms when healthy maize plants were inoculated with the suspected pathogens. It is important to inoculate the maize seedlings at the correct age (four-leaf stage) and the spray method is recommended. Re-isolation was repeated from the same plant material used during the initial isolation process but the isolation method was amended. The optimised isolation method involved the use of a dilution range and spread plate method. Colonies from this isolation technique grew as bright yellow colonies that were identified as Xanthomonas spp. This outcome indicates the importance of surface sterilisation,
pulverisation and subsequent dilution of plant materials for isolation of bacterial pathogens from diseases plants. These isolates were used to create protein profiles with SDS-PAGE electrophoresis and carbon utilisation patterns with the Biolog® GN2 system. Protein profiling banding patterns was assessed based on presence/absence criteria. Highly similar protein profiles were observed among the X. campestris pv. zeae isolates but groupings of different protein profiles were determined when minor differences in the protein profiles was taken into account. Xanthomonas campestris pv. zeae was successfully distinguished from the X. axonopodis pv. vasculorum reference strain through unique SDS banding patterns. Banding patterns obtained from cultures grown in a liquid medium (tryptic soy broth) were of a higher quality than the banding patterns obtained from bacteria harvested from solid media (CYG agar plates). Carbon source utilisation data was used to evaluate the average well colour development obtained from each isolate. Statistically significant differences were found among some of the isolates, with some isolates being metabolically more active than other isolates. Substrate utilisation patterns produced by the isolates corresponded to previously published studies on various Xanthomonas species. The cell count of the samples used during carbon utilisation patterns must be standardised in order to obtain reliable results. During this study, the application of Koch’s postulates and two inoculation techniques confirmed that Xanthomonas campestris pv. zeae is the pathogen responsible for bacterial leaf streak of maize. Members of the Pantoea and Enterobacter genera were found on the leaf surface of maize plants infected with BLS but inoculations of healthy maize plants with these bacteria did not result in bacterial leaf streak symptoms on the maize plants. These bacteria were not pathogenic and were considered endophytes. The identified pathogen was characterised through protein and metabolic profiling. The protein profiles of the pathogen obtained through analysis of the major bands of the SDS-PAGE gels were highly similar and distinguishable from the Xanthomonas reference culture. Groupings within the X. campestris pv. zeae group was found when major and minor bands were considered, this may however be altered when the intensities of the bands are used during analysis. Carbon utilisation patterns were assessed using Biolog® GN2 plates. A metabolic fingerprint was created for the pathogen of BLS, it was possible to distinguish between X. campestris pv. zeae and other Xanthomonas strains based on the fingerprint. This fingerprint could be used to identify the pathogen.
North-West University
2015
Thesis
en
http://hdl.handle.net/10394/15480
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15480/1/Nienaber_JJ.pdf
c908df855dbef4730b86faded06e5bd3
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15480/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15480/3/Nienaber_JJ.pdf.txt
635a5ee927b43b8910dce32bed6ace0f
Maize
Bacterial leaf streak
Xanthomonas
X. campestris pv. zeae
Pathogenicity tests
SDS-PAGE
Protein profiling
Biolog GN2
Metabolic fingerprinting
oai:repository.nwu.ac.za:10394/96412018-06-22T12:17:49Zcom_10394_26463col_10394_26476
Use of Aloe vera and Aloe marlothii materials as excipients in beads produced by extrusion–spheronization
Chinyemba, Patience
Hamman, J.H.
Steenekamp, J.H.
Viljoen, A.M.
Microcrystalline cellulose (MCC) is the most commonly used excipient in the manufacture of spherical particles or beads by extrusion spheronisation. However, the use of MCC in beads has its limitations such as prolonged release of drugs due to lack of disintegration. The aim of this study was to determine if Aloe vera and Aloe marlothii leaf materials can be used as excipients in the production of beads prepared by extrusion spheronisation. A 2³ full factorial design was employed for optimisation and to explore the effects of the concentration of MCC, polyvinylpyrrolidone and aloe materials on the sphericity and release rate of ketoprofen. Scanning electron microscopy revealed more porous beads when aloe materials were included in the bead formulations compared to the formulation with MMC alone. The bead formulations containing aloe materials exhibited faster drug release compared to that of the formulation containing MCC alone. Dissolution data of the optimised formulations were analysed in terms of mean dissolution time (MDT) as well as fit factors (f₁ and f₂). The optimised bead formulations had dissolution profiles comparable to that of the formulation containing MCC alone at pH 1.2 and 4.5 (f₂ values > 70), but less comparable to the reference at pH 6.8 (50 < f₂< 65) due to faster drug release. Aloe vera and Aloe marlothii leaf materials can be used successfully together with MCC in the production of beads by extrusion spheronisation.
North-West University
2012
Thesis
en
http://hdl.handle.net/10394/9641
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9641/1/Chinyemba_P.pdf
f43de4d39a59e83c6801ea42d66f8fc1
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9641/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9641/3/Chinyemba_P.pdf.txt
3fb8342440abfe76c04cc8dd69352ef5
Microcrystalline cellulose (Avicel pH101)
Aloe vera
Aloe marlothii
extrusion spheronisation
beads
oai:repository.nwu.ac.za:10394/98102020-10-22T10:36:01Zcom_10394_26463col_10394_26478
Intercultural communication in information systems development teams
Nhlapo, Moleboge Emma
Goede, R.
Communication is a critical success factor to information systems development (ISD) projects. Intercultural communication involves two or more people from diverse cultures communication and using different worldviews and context transmit messages to each other. The aim of this study is to gain an understanding on the influence of the intercultural communication on the performance of an ISD team. In order to achieve this aim one needs to understand information systems research and to justify the selection of the chosen research methodology; to understand information systems development and ISD teams; to understand culture and communication; to understand what affects communication has between different cultures; to discover how cultural misunderstandings impact upon ISD team performance and to discover the steps taken to eliminate miscommunication due to cultural issues in organizations. The interpretive research was carried out in several organizations in Gauteng province of South Africa that develop or has a department that develops information systems. A multiple case study using interviews and content analysis as research methods were instrumental in coming to the conclusion of the research. A multicultural dyad conducted interviews in three participating organizations. Diverse information systems development team members participated in this study. The results of the study describe how intercultural communication influences ISD teams in a South African environment. They also provide an understanding on culture and communication. The results of the study also report on culture and personality as determinants of behaviour, and also on different perceptions of culture. The different ISD team dynamics may be affected by team members’ culture and personality. The results also report on intercultural communication in information systems development teams and how it is affected by the different cultural context.
North-West University
2013
Thesis
en
http://hdl.handle.net/10394/9810
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9810/1/Nhlapo_ME.pdf
05b242584966984e6b9fd209a7ae5155
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9810/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9810/3/Nhlapo_ME.pdf.txt
8822893952922b33df245d0941234b84
Culture
Communication
Intercultural communication
Information system development teams and performance
Kultuur
Kommunikasie
Interkulturele kommunikasie
Inligtingstel ontwikkeling
Inligtingstelsel ontwikkelingspanne en prestasie
oai:repository.nwu.ac.za:10394/134382020-09-17T06:15:59Zcom_10394_26463col_10394_26477
The intelligence regime in South Africa (1994-2014) : an analytical perspective
Van den Berg, Matthias Adriaan
Duvenhage, A.
Intelligence, having espionage as its roots, is sometimes misunderstood due to its secret nature. It is due to this that intelligence as a vital component in a state, could be misused by the political regime through less democratic practices that infringe on human rights and the rule of law. The quest of this study (which is not classified, to make the research findings available to both practitioners and scholars of intelligence studies), is to attempt to contribute to the theory and understanding of intelligence studies as a sub-field within the political science in describing, explaining and analysing the intelligence regime. The primary aim is to provide a contextualised and systematic overview of the South African intelligence regime within the framework of the democratisation process in South Africa with specific reference to the period from 1994 to 2014. This study analyses the intelligence regime in South Africa by specifically assessing the role, function and purpose of intelligence through history and within the context of the South African political regime. Therefore, the research problem examined in this study is: given the history and development of South Africa as a democracy, what is the role and function of the intelligence regime during the period 1994 to 2014 – specifically to determine whether intelligence practices were more or less democratic. The theoretical framework formed the basis from which the concepts of state, political regime types and form and degree of government, was explored. It furthermore provided for a comparison of democratic and non-democratic intelligence practices. The study locates intelligence as a reflection of the political regime through the simultaneous typology of both the regime and intelligence, thereby to enable the identification of more or less democratic practices. The notion of a hybrid regime, as having elements of both democratic and non-democratic regimes, presented a fundamental shift in the perception of South Africa‘s democratisation process towards an attempt to reach the goal of being a consolidated democracy. This study draw the conclusion that the role, functions and mandate of an intelligence service within a democracy, should firstly focus on providing the policy-maker with intelligence to be able to make policies; secondly on the identification of threats or potential threats to national security of the state and lastly to protect the constitution. This would ultimately enable the intelligence regime in South Africa to employ more democratic practices which could assist in reaching the goal of democratic consolidation.
2014
Thesis
en
http://hdl.handle.net/10394/13438
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13438/1/Van_den_Berg_MA.pdf
18233df4d5988f7fff93fb8ae764b366
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13438/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13438/3/Van_den_Berg_MA.pdf.txt
178c2a9b28718533a5db948145095819
Authoritarian
Control, Oversight and Accountability
Consolidated Democracy
Democracy
Democratisation
Government
Human Rights
Hybrid Regime
Intelligence: definition, elements and purpose
Non-democratic
Oligarchy
Political Regimes
Politicisation
Power Elite
Rule of Law
State
Totalitarian
Weak State
oai:repository.nwu.ac.za:10394/418202023-06-20T01:09:47Zcom_10394_26463col_10394_26477
The perceptions of the community on community policing at Nkaneng informal settlement
Kotsedi, Segale Shadrack
Venter, T.P.
The objective of this dissertation is to investigate the causes and effects of the non-establishment of a community-policing sub-forum at Nkaneng Informal Settlement.
One of these causes is the negative perceptions that exist on the side of both the
police and the community due to poor communication between them.
The dissertation gives an overview of (1) the theoretical framework and (2) the profile
of the study area, (3) it interprets and analyses the data collected through interviews
and (4) it traces the process of establishing a Community Policing Forum (CPF) at
Tlhabane Police Station. The study has found that many factors of a social, cultural,
economic and political nature are complicating the situation. However, it has become
apparent that the chief impediment in overcoming the poor relationship between the
police and the community is a failure to develop sustainable behavioural changes
among both police officials and members of the community. A fundamental
transmutation of attitudes and practices is needed. Furthermore, recommendations for
the establishment of a sub-forum have been given extensive consideration in chapter 6
of the study. These possible solutions or recommendations such as (1) urban bias, (2 )
management versus leadership, (3) responsibility and accountability, (4) community policing co-ordination, (5) strategic and system planning, (6) communication, (7)
community participation, (8) use of national events days and (9) creation of a
community centre have been discussed comprehensively and extensively. This latter
chapter also contains hints and suggestions that can assist the Community Policing
Officer (CPO) in dealing with the problems experienced by the police in the study area.
In the compilation of the study and analysis of the data, it has become clear that the
police have to double their efforts to change the attitudes and perceptions of the
residents of the community involved in the study.
North-West University (South Africa)
2001
Thesis
en
http://hdl.handle.net/10394/41820
https://repository.nwu.ac.za/bitstream/10394/41820/1/Kotsedi_S.S..pdf
40f543bc7998c613a946de5c0f3e0e40
https://repository.nwu.ac.za/bitstream/10394/41820/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/41820/3/Kotsedi_S.S..pdf.txt
1e6e5bd611950da25f8899d9f6e9257f
oai:repository.nwu.ac.za:10394/423022023-11-07T15:19:39Zcom_10394_26463col_10394_26473
Exploration of the child support grant in a community of the North West Province
Lenyatsa, Kegomoditswe Gloria
Ubisi, S.V.
Masilo, L.M.
The child support grant (hereafter referred to as CSG) in South Africa was implement in 1998 to fight child poverty. The CSG came after the state maintenance grant (SMG) was repelled, because it (SMG) only benefited certain races. Section 27(c) of the Constitution of the Republic of South Africa, 1996 states that everyone has the right to have access to social security and appropriate social assistance including those who are unable to support themselves and their dependents. This study was undertaken to explore the CSG in the community of the North West Province. The study was necessary because CSG is meant to support children who are disadvantaged to improve their living conditions. Poverty affects vulnerable people. These people are often children, disabled people, the old and women, especially those who are single parents. The South African democratic government assists disadvantaged citizens with eight different social grants to assist those who cannot provide for themselves and their families. From these social grants, only the CSG was investigated in this study. The study employed a mixed-methods approach to collect qualitative and quantitative data. An exploratory research design was used to better comprehend CSG policy and its contribution to the beneficiaries. Semi-structured questionnaires were used to conduct semi-structured interviews with the sampled primary caregivers of CSG and social workers (study participants). The sampled participants provided insights into how CSG reduces poverty, determines the basic needs of beneficiaries covered by CSG, as well as determines the effectiveness of the criteria used by the South African Social Security Agency (SASSA) to select primary caregivers who qualify for the grant. The findings of the study revealed that CSG plays a fundamental role to beneficiaries and the whole family. It often assists in buying groceries and payment of the educational needs of the CSG’s beneficiaries. One of the recommendations produced by the conducted study is the increment of the amount of CSG beyond its annual increase of ten rands (R10) as well as reducing the dependency on the government by primary caregivers through adopting a system where primary caregivers work for the grant.
North-West University (South Africa)
2023
Thesis
en
https://orcid.org/0000-0003-0746-1574
http://hdl.handle.net/10394/42302
https://repository.nwu.ac.za/bitstream/10394/42302/1/Lenyatsa_KG.pdf
e033333e73a17db61d9401669e1a1c42
https://repository.nwu.ac.za/bitstream/10394/42302/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/42302/3/Lenyatsa_KG.pdf.txt
28a3b0f82f53c39bea39afe2f7b9fafa
Beneficiaries
Caregivers
Child support grant
South African Social Security Agency
oai:repository.nwu.ac.za:123456789/406972023-03-08T07:57:50Zcom_10394_26463col_10394_26464
Die reg van die kind op oorlewing, ontwikkeling en beskerming
Haupt, Liezl Caryl
Robinson, J.A.
Venter, F.
Children's rights not only entail the protection of the child, but also the
recognition of his developing self-determination. These rights which are
aimed at survival, development and protection, are universal and are
recognised in international and regional human rights treaties. Children's
rights do not imply that parents and the family are of secondary importance in
the care, education and protection of the child. Rather, it is indicative of a
shift in emphasis from parental authority and rights to parental responsibility
and children's rights. Although this shift in emphasis has certain implications
for the relationship between parents, children and the state, parents remain
primarily responsible for the child's care and protection. The state's role in
the care and protection of the child is only supplementary.
The Bill of Rights, in particular the provisions in section 28, also
acknowledges the particular needs and interests of children. Furthermore,
constitutional recognition is also given to the principle of the best interests of
the child. Section 28(2) states that the child 's best interests are of paramount
importance in every matter concerning him. By entrenching every child's right
to parental or family care, the importance of parents and family life for the
survival , development and protection of children are also acknowledged. The
basic survival and healthy development needs of children are addressed by
socio-economic rights such as those set out in section 28(1)(c). However the
implementation of these rights may be restricted by a lack of sufficient
resources.
Although common and statutory law recognises the child 's needs and
interests, the constitutional entrenchment of children's rights requires further
reform. Principles such as the best interests of the child as the paramount
interest, the recognition of the child's developing self-determination, and his
right to be heard in matters concerning him, the distinguishing between
children who need parental guidance and those who are sufficiently mature to
make certain decisions and enforce certain fundamental rights, and the
restriction on certain fundamental rights to protect the child, are just some of
the guidelines proposed for reform and the realisation of children 's rights.
North-West University (South Africa).
1998
Thesis
other
http://hdl.handle.net/123456789/40697
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40697/1/Haupt_L.C..pdf
ecd610195e899b039c5e52d6accc73ff
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40697/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40697/3/Haupt_L.C..pdf.txt
6f0abfbd5d4ac08e396d084c566c6a76
oai:repository.nwu.ac.za:10394/413752023-05-11T01:03:53Zcom_10394_26463col_10394_26475
Analysis of future carbon tax scenarios for South African gold mines
Adebayo, Kemi Adunola
Vosloo, J.C.
The South African Carbon Tax Act came into effect in 2019, and it places a price on the
emissions of greenhouse gases (GHG). The second phase of the carbon tax will be
implemented in 2023. Presently, there is uncertainty regarding the changes that will be made
to tax policy during this review. This is especially problematic since GHG emissions mitigation
strategies are dependent on the existing tax policy design. Subsequently, carbon taxpayers,
like gold mining companies, cannot plan for future carbon tax-related scenarios.
The uncertainty regarding carbon tax policy changes needs to be reduced to assist South
African gold mines with future carbon tax planning. This study investigated a variety of
scenarios associated with Phase 2 tax policy designs and GHG mitigation strategies. The
uncertainty was reduced through the assessment of the impact of tax policy design, and
emissions mitigation strategies, on a gold mining company’s future carbon tax exposure.
This study developed possible carbon tax policy scenarios and emissions mitigation scenarios.
An appropriate baseline scenario was identified for 2021 to 2027. The carbon tax exposure
was calculated and forecasted for each scenario for the same period as the baseline. A
sensitivity analysis was performed on these scenarios with reference to the baseline scenario.
This was done to ascertain the sensitivity of carbon tax exposure to the scenarios themselves.
The analysis of the carbon tax policy scenarios resulted in various findings. First, phasing out
the basic tax-free allowance for fossil fuel combustion emissions would expose a gold mining
company to more carbon tax annually compared to the baseline. However, the extent to
which this is true could not be verified.
Secondly, selecting a carbon budget based on national emissions reductions requirements,
rather than a gold mining company’s mitigation potential, would lead to higher annual carbon
tax exposure if said budget is exceeded. Furthermore, the option for carbon budget penalty
imposition by the National Treasury would result in higher annual carbon tax exposure for a
gold mining company, compared to penalty imposition by the Department of Forestry,
Fisheries and the Environment (DFFE).
Lastly, carbon offsetting can reduce a company’s emissions in terms of carbon accounting.
This may be useful in achieving net-zero carbon emissions status. However, the resulting
carbon tax exposure is only reduced if the percentage of emissions offset is within the
constraint presented by the offset allowance in the Carbon Tax Act.
In terms of emissions mitigation, it was found that the implementation of a renewable energy
plant to substitute coal-fired electricity purchases exposes a gold mining company to less
carbon tax in future, when compared to sourcing power from the renewable energy sector.
North-West University (South Africa).
2022
Thesis
en
https://orcid.org/0000-0001-8302-8444
http://hdl.handle.net/10394/41375
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41375/1/Adebayo_KA.pdf
db6d702bbdf5c029d06a6fc1f130b717
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41375/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41375/3/Adebayo_KA.pdf.txt
07784e085da85621e9485a590a2555b6
Carbon tax
Greenhouse gas emissions
Phase 2 carbon tax policy
Emissions mitigation
oai:repository.nwu.ac.za:10394/414382023-05-20T01:08:23Zcom_10394_26463col_10394_26477
'Ze willen grieven eten'-- teorie en praktyk van die vertaling van 'n Nederlandse kinderboek
Nelson, Maria Elizabeth
Wissing, D.P.
Combrink, A.L.
This research project was undertaken with the aim of exploring the problems
experienced in the translation of a Dutch children's book (Otje by Annie M.G.
Schmidt) into Afrikaans, classifying these problems and examining the solutions
arrived at.
After reflection on the type of translation most suitable for child readers, the
translation itself was done mainly in accordance with the intuition of the
candidate. In a few instances analyses were made to come to a decision. The
rest of the research was done only after the completion of the translation. It was
then agreed by the candidate and promotors that no more alterations would be
made to the translation.
Part One is introductory. After stating the problem and the motivation for the
study (Chapter 1), Chapter 2 is devoted to an overview of the question of
equivalence in translation, and what the candidate set for herself as an ideal in
the translation of Otje. Chapter 3 deals more generally with children's books
and their translation.
Part Two is devoted to problems of a sociolinguistic nature, arising from the
difference in the cultures of the source and target texts (Chapter 4). It was found
that these could be solved by inserting a metatextual element like a classifier, or
by transposing it to a cultural equivalent known to the target language users, or
by substituting a rough equivalent. A flow chart was devised for the procedures
followed here.
Part Three deals with purely linguistic problems. The syntactical problems
covered are the translation of the Dutch present participle into Afrikaans
(Chapter 5) and the translation of the Dutch verbs (Chapter 6). The present
participle was found to have a much higher frequency in the Dutch text.
Approximately half of the present participles in the source text were translated
by present participles in the target text. The rest were translated by means of
other syntactic structures, 13 different types of which were used. These are
classified according to the grammatical functions the participle had in the source
text.
In describing the translation of verbs ( Chapter 6) the overall conclusion was
reached that the expectation that the marked pattern should be used for the
Dutch imperfect, perfect and pluperfect, is not realized in the case of the
imperfect. A further conclusion was that Afrikaans verbs largely resemble
spoken Dutch.
The translation of proper names posed a lexical problem (Chapter 7). It entailed
finding translations for some proper names probably created by the author to
evoke certain associations. Perspectives on these nicknames were obtained from
linguistics, psychology, onomastics, reception aesthetics, literary convention and
narratology. These all pointed to the necessity of expounding, in the target text,
the characteristics highlighted by the nicknames.
Part Four contains a summary of conclusions and points out the less successful
instances of translation brought to light by the theoretical reflection.
The appendix, bound separately, contains the complete Dutch source text as well
as the Afrikaans translation in side by side paragraphs.
At the end of Chapters 4-7 general strategies are set out for dealing with the
different types of translation problems encountered in these chapters.
North-West University (South Africa)
1991
Thesis
other
http://hdl.handle.net/10394/41438
https://repository.nwu.ac.za/bitstream/10394/41438/1/Nelson_M.E...pdf
8ae9cc1d0d902c4c52b21a6df28c20c4
https://repository.nwu.ac.za/bitstream/10394/41438/3/Nelson_M.E..pdf
96d8d5fd6834b05970ec21d04507bb8a
https://repository.nwu.ac.za/bitstream/10394/41438/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/41438/4/Nelson_M.E...pdf.txt
69e9344659feae48e644c90c528d3219
https://repository.nwu.ac.za/bitstream/10394/41438/6/Nelson_M.E..pdf.txt
db743bc98cb685957da81ed21e784c95
oai:repository.nwu.ac.za:10394/327682019-06-11T15:07:51Zcom_10394_26463col_10394_26476
Dietary intake in relation to iron status in 5-12 year old primary school children and estimated cost of a nutrient rich diet
Visser, Marina Victorovna
Van Zyl, Tertia
Faber, Mieke
Background: Poor nutrition is one of the main causes of nutritional anaemia, with half of the cases estimated to be due to iron deficiency (ID). School-age children are at high risk of these nutritional disorders due to their increased nutrient requirements, accelerated physical and intellectual development, but poor dietary intake. It is generally accepted that individuals do not consume isolated foods or nutrients and that nutrients interact with each other and influence the bioavailability and absorption. There is a need to evaluate a diet as a whole and explain how the various nutrient combinations and foods from various food groups are related to the risk of developing nutritional anaemia in school-age children. Also, it is important to compare the nutrient density and cost of the diets of children according to their anaemia and iron status and to identify foods that provide the most dietary iron per unit cost.
Aim and objectives: The aim of the study was to determine the relationship between dietary intake and iron status in three study groups of 5- to 12-year-old primary school children residing in the KwaZulu-Natal and North West provinces of South Africa. The objectives were to assess nutrient patterns and its relation to anaemia and iron status; to examine the association of dietary diversity with anaemia and iron status; and to investigate the relationship of nutrient density and cost of diet with anaemia and iron status in school children using pooled data from three study populations in South Africa.
Methods: A pooled analysis was conducted with existing baseline data of 5- to 12-year-old primary school children (n = 578) derived from three independent intervention studies conducted in two provinces in South Africa. The following data were extracted from the databases: socio-demographic information; anthropometric measurements (height and weight); biochemical data haemoglobin (Hb), plasma ferritin (PF) adjusted for inflammation, C-reactive protein (CRP); and dietary intake data (energy, and macro- and micronutrients). Nutrient patterns were determined using factor analysis; dietary diversity scores (DDS) were calculated based on data from 1-day and 3-day reference recall periods on nine food groups consumed; and the nutrient density of foods and diets was calculated using the Nutrient Rich Foods Index (NRF9.3). The nutrient density-to-price ratio of foods and total diets was estimated by attaching food prices to the dietary intake data. Descriptive statistics, factor analysis, analysis of variance, analysis of covariance, and regression analyses were used to compare the study groups and to examine the associations of dietary intake with anaemia and ID status of studied children.
Results: In the pooled group 13.8% of the children were anaemic and 27.7% were ID. More than half of the children did not meet the requirements for various nutrients, that is, vitamin A, vitamin C, vitamin B12, folate and zinc; however, 18% of children had an iron intake below the requirements. Four nutrient patterns were identified: ‘plant protein, carbohydrate, iron and B-vitamins’; ‘animal protein and saturated fat’; ‘vitamin A and vitamin B12’; and ‘calcium and fibre’. The ‘vitamin A and vitamin B12’ nutrient pattern was associated with lower odds of being anaemic [OR 0.63 (0.49-0.91), p = 0.035]. For both reference recall periods, consumption of ‘vegetables and fruits other than vitamin A-rich’ and ‘animal-source foods (ASF)’ was associated with lower odds of being anaemic (both p = 0.002); and ‘organ meats’ with lower odds of being ID (1-day p = 0.045; 3-day p < 0.001). Consumption of ‘meat and fish’ was associated with lower odds of being anaemic (p = 0.045) and ‘vegetables and fruits other than vitamin A-rich’, ‘legumes, nuts and seeds’ and ‘ASFs’ with lower odds of being ID for the 3-day recall period only (p = 0.038, p = 0.020; p = 0.003, respectively). A DDS ≤ 4 was associated with higher odds of being anaemic (1-day p = 0.001; 3-day p = 0.006) and being ID (3-day p < 0.001). Diet cost did not differ according to anaemia and ID status, although the nutrient density-to-price ratio was significantly lower for anaemic versus non-anaemic children (p = 0.001). Children with anaemia and ID had significantly lower NRD9.3 diet scores compared to non-anaemic and non-ID children.
Conclusion: The combination of dietary vitamin A and vitamin B12 known as enhancers and facilitators of dietary iron absorption may play an important role in the aetiology of nutritional anaemia in school age children in South Africa. Dietary diversification and the importance of consuming vegetables, fruits and foods from animal sources should be considered. Selecting nutrient-dense foods in order to substitute foods with low nutrient density may be a promising way to consume a diet richer in specific nutrients, and may thus help to prevent nutritional anaemia and ID in South African school-age children without affecting the cost of the total diet
North-West University (South-Africa). Potchefstroom Campus
2019
Thesis
en
National Research Foundation (NRF)
Nestlé Nutrition Institute Africa (NNIA)
Association of African Universities
http://orcid.org/0000-0002-6173-0651
http://hdl.handle.net/10394/32768
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/32768/1/Visser_MV_2019.pdf
e31383e51065a7c5f679e129a79197b4
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/32768/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/32768/3/Visser_MV_2019.pdf.txt
a1035d91049a4c55d9ca3aa944eafed0
Anaemia
Iron deficiency
Nutrient patterns
Dietary diversity
Nutrient density
Diet cost
Primary school children
South Africa
oai:repository.nwu.ac.za:10394/86752020-10-20T12:05:10Zcom_10394_26463col_10394_26478
Waste discharge charge system : the practical implication from a gold mining perspective
De Waard, Krijn Carlo
Stander, J.H.
The mining, agricultural and energy sectors, along with the Department of Water Affairs (DWA) are critical role players in managing South Africa’s water resources. Water resources are under increasing pressure due to continuous population growth and economic development. It is critical to adopt a management policy that can lead to sustainable water supply. The National Water Act, 1998, (Act 36 of 1998), Section 56(1) instructs the Minister of Water Affairs to establish a Pricing Strategy for charges for any water use described in Section 21 of the Act. In light of this the Department implemented the Waste Discharge Charge System (WDCS). The WDCS is based on the polluter-pays principle and is focussed on load reduction on order to achieve or maintain resource quality objectives. One of the legal requirements in the mining industry is to have a water use license under Section 21 of the National Water Act of 1998 (South Africa, 1998b) which will lead to the application of the WDCS to the mining industry. This mini-dissertation assesses how the WDCS can be practically implemented from a gold mining perspective. The WDCS require the identification of point and diffuse sources from various pollution sources. A case study was used to determine what information and instruments will be required at a gold mine to implement the WDCS. The determining of the point and diffuse discharges require multidisciplinary studies with the integration of different spheres of the environment. To assist with this a GoldSim model was developed. The main function of the model was to determine the seepage rates per day from pollution sources using the available information. The seepage rates and the water qualities were used to determine the waste loads discharged to the environment. Using the instruments above, a methodology was provided to determine the point and diffuse sources of pollution and calculate the load that will be discharged to the environment which will form the basis of the WDCS.
North-West University
2012
Thesis
en
http://hdl.handle.net/10394/8675
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/8675/1/De_Waard_KC.pdf
91060a3fad3007944d45cb38156818ed
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/8675/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/8675/3/De_Waard_KC.pdf.txt
03bb895816025a0ec4805dd7c1b8f54e
Waste discharge charge system
Point sources
Diffuse sources
GoldSim
Water resources
Gold mining
oai:repository.nwu.ac.za:10394/40042018-03-05T06:17:59Zcom_10394_26463col_10394_26476
Authentic leadership embedded in a social capital framework : a theory in nursing science
Bester, Petra
The transformation from an industrial to a knowledge age has brought about a fast-changing world-focus and a competitive economy. The nursing profession, as part of the larger economy, is challenged by this transformation due to globalisation, internationalisation, capitalism within a consumer society, an ageing workforce, staff shortages, international migration and advanced technology. It is argued that these challenges are impacting directly on the nursing profession as a part of the global economy. This impact is intensified due to the ethos of nursing that is evaluated from a profit perspective and does not value the core values of nursing, that of caring and trust. The managerial strategies that are applied in nursing does not sufficiently harness and direct nurses. Focus is placed on nurse leaders as crucial role players in directing the nursing profession in peril. A call was made by followers for a different type of nurse leaders to lead this challenged profession, in an international arena. Social capital, being an abstract and multi-facet concept is presented as a possible framework to assist with the above crisis. Extremely limited literature was found on the utilisation of social capital to develop nurse leadership amongst these challenges.
The research question, and later comprehensive aim, was formulated to examine how a theory in Nursing Science for authentic leadership embedded in a social capital framework, can be constructed. Theory construction of a middle-range theory was conducted in three phases. Phase One implied concept identification, descriptions, definitions and analysis. The actual theory construction was achieved in Phase Two, whilst Phase Three detailed the theory evaluation and guidelines for operationalisation. Main and related concepts were identified as agent, recipient, context, procedure, goal and dynamics. Data collection was conducted by means of a comprehensive literature search of all available national and international literature and included theories, textbooks and articles. Data saturation was achieved after no new information surfaced, n=188.
The main concepts, authentic leadership (agent) and social capital (procedure) underwent a comprehensive concept analysis. Related concepts, namely the professional nurse (recipient), South African hospitals (context), positive impact on the triple bottom line (goal) and trust (dynamics) underwent a literature analysis.
The theory was graphically portrayed and described by means of a model. The theory was submitted to a panel of experts (n=6). The panel was selected following purposive sampling due to specific inclusion criteria for expertise in social capital, and/or leadership and/or theory construction. The evaluation of the theory was conducted according to a specific framework for critical reflection. Guidelines for the operationalisation of the theory were formulated on a macro-, meso- and micro-level. The final step was the evaluation of the research and recommendations were made.
North-West University
2008
Thesis
http://hdl.handle.net/10394/4004
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4004/1/bester_p%281%29.pdf
958078eb8a9a7bee26e8f388c74a2604
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4004/2/license.txt
22827b9771f6e3328ef4bd190b151af5
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4004/3/bester_p%281%29.pdf.txt
05ffcfec37fbb1bbd25c14c21e79e202
Authentic leadership
Social capital
Theory construction
Nursing science
oai:repository.nwu.ac.za:10394/151732020-08-24T09:53:18Zcom_10394_26463col_10394_26473
The competitive advantage of velvet beans as an economic agricultural commodity
De Villiers, Edward James Daniel
Buys, P.W.
The competitive advantage of velvet beans as an economic agricultural commodity. In the past 40 years, although food insecurity, poverty and environmental degradation persist, worldwide farmers have made considerable progress in increasing per capita food production whilst better understanding natural-resource management. Literature indicates that — in the decades to come — food demand will both grow and change for three reasons, namely increased numbers of people, increased income (people will have more purchasing power), and increased urbanisation (people will be more likely to adopt new diets containing animal protein and cereal). The world population is expected to increase to 8,9 billion by 2050, with 84% in the developing countries. Food insecurity and malnutrition are expected to persist despite progress on average per capita consumption of food. As a complex system, and despite challenges, agriculture must produce simultaneously unprecedented abundance of food and unparalleled social concerns. As a business, agriculture requires high capital investments in land, facilities and production inputs; most often producing commodities of generally low unit value with thin profit margins, thereby forcing producers to strive for efficiency in all aspects of production. Therefore, it is of utmost importance that farmers should understand sustainable agriculture; where a more sustainable food-production system seeks to make the best use of nature’s goods and services whilst not being harmful to the environment. Sustainable agriculture should maximise the productivity of the land; should focus on locally adapted resource-conserving technologies which assist whole system redesign and large-scale adoption; and should aim to minimise the use of harmful non-renewable and fossil-fuel derived inputs. Fertilisers have not replaced the function of organic matter and other management practices; but soil erosion and toxic waste rather did increase disproportionately along with increased agricultural production. This has led to a progressive decline in crop and land productivity as a result of soil degradation, water contamination, increasing problems of weed infestation, pests and diseases. Often the apparent absence of sustainable productive agricultural systems within the scope of commercial farmers is not because of the lack in technology or low yield potential of traditional varieties, but rather on account of the limited knowledge or lack of awareness on the part of farmers about sustainable production practices which function in harmony with their farming environment. As one of the keys to success the velvet bean — which can grow almost everywhere — is an example of the introduction of a simple regenerative component into a farming system, as well as boosting the capacity of a farmer for local adaptation of the technology. Integrating the natural processes of nutrient cycling, nitrogen fixation and introducing natural enemies of pests into food production processes can contribute to minimising environmental damage and/or health of the farmer and the consumer. Using the knowledge and skills of farmers helps to improve their self-reliance and to solve a common management problem, such as social- and human-capital management.
The velvet bean is seen as an answer to the agricultural problem of low nutrient supply to the staple crop of maize. The bean creates ground cover, regenerates, fertilises the soil, controls weeds and adds organic matter and nutrients. In arid South Africa the crop is one of the strongest defences of the farmer against the harmful effects of El Niño — with the bean protecting the soil, holding water and fertilising the land with its leaves. With the velvet bean farmers can grow their own organic and inexpensive fertilisers. Commercial fertilisers are becoming more and more expensive and their benefit is decreasing because of a degrading soil resource base. Furthermore, the rise in production costs makes total reliance on inorganic fertilisers more uneconomical for most growers in the agricultural sector; making it imperative for researchers to come up with options which increase the efficient use of fertiliser, and also to identify other nutrient sources — such as legumes — that are not capital intensive. The velvet-bean technique is known to researchers and farmers worldwide for a considerable amount of time, but not in our country. As the technique becomes better known to South African farmers, it can be considered in a broader sense as a modern way to add nitrogen to the soil; benefitting, amongst others, the subsequent crop. The velvet-bean approach has a window of opportunity which can lead to higher yields in crop production, decline in labour costs, crop diversification, as well as agro-processing — all resulting in improved food security for South Africa. Adopting the velvet bean into a production system can benefit a farmer, by achieving maize yields of 3 t/ha–4 t/ha (similar to yields normally obtained with recommended levels of fertilisation at 130 kg N/ha) without applied nitrogen fertiliser or input for weeding. Velvet beans, as an intercrop, can provide more than 100 kg N/ha to the following crop. However, literature shows a declining trend over time for all systems, which suggests that additional external inputs (probably P and K fertiliser) are required to achieve full sustainability. The adoption of the velvet bean in the South African maize industry would result in import savings of about 158 million tons of urea or about R591 billion/year. Information presented in this mini-dissertation is considered to be the current state of knowledge on establishing, managing, and utilising the velvet bean as a legume in South Africa’s commodity market; with the belief that it will expand the use of the bean, and will enhance the benefits from its use.
2015
Thesis
en
http://hdl.handle.net/10394/15173
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15173/1/De_Villiers_EJD.pdf
c31d1b1ff6fd4ec7d37d4b779ca9f8d2
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15173/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15173/5/De_Villiers_EJD.pdf.txt
9e0b1c8541dd27b98cbaf605a0d5d223
Mucuna pruriens
Competitive advantage
Velvet beans
Economical legume
Agricultural commodity
oai:repository.nwu.ac.za:10394/117342020-09-16T11:31:58Zcom_10394_26463col_10394_26477
Voordele van die pre–forensiese evaluering as deel van die forensiese ondersoekproses rakende seksuele misbruik van 'n kind
Labuschagne, Lizette
Strydom, C.
Wessels, C.C.
The sexual abuse of children presents as an ever-increasing social concern in South-Africa
and the rest of the world. A daily newspaper reports that 104 913 serious crimes against
children were reported to the South African Police Service (SAPS) since 2010. Another 49
550 serious crimes against children were reported during 2012/2013 at the SAPS (Meiring,
2013:7).
The concept of child sexual abuse only became publically known in the seventies. Since
then intense research has been done in an effort to gain a better understanding regarding the
concept, causes and effects of child sexual abuse (Herbert, 2000:16). However, not only
was knowledge gained regarding the extent of child sexual abuse, but there has also been an
increase of knowledge involving the theoretical base of the methods of investigation with
regard to child sexual abuse.
Through this specific research project the researcher will endeavor to contribute to the
existing theoretical knowledge base by researching and describing the benefits of
implementing pre-forensic evaluation when investigating the presumed sexual abuse of a
child.
A summary of The Criminal Law (Sexual offences and related matters) Amendment Act 32 of
2007’s (South-Africa 2007:25-27) definition of child sexual abuse is as follow: “A sexual
offence occurs when any person engages a child (a person under the age of 18) with or
without the consent of the child, in a sexual act. Sexual act is defined as an act of sexual
penetration or an act of sexual violation. Sexual penetration can be seen as any sexual form
of penetration to any extent whatsoever by die genital organ, any body part and/or object by
one person into, or beyond, the genital organs, anus or mouth of another person”.
In order to combat the incidence and increase of child sexual abuse it is imperative that every
accusation regarding the possibility of such abuse should be investigated thoroughly. Due to
the fact that some children will only disclose sexual abuse when the are in a safe environment, the whole process could be delayed if the child does not feel safe. Johnson
(2004:465) postulates that this delay could jeopardize the whole process because when
physical healing had occurred the physical evidence could be destroyed. The absence of
physical evidence stresses the importance of the implementation of the forensic investigation
process.
Social workers are regularly required to evaluate children when sexual abuse is suspected.
This process often starts with a pre-forensic evaluation in order to ascertain the probability of
sexual abuse. If the pre-forensic investigation confirms the possibility of such abuse, the next
step is to conduct a formal forensic investigation. Clark (2007:70) explains that this
investigation is used to gather relevant factual information required for police investigation
and for use in a court of law.
Due to the seriousness and sensitivity regarding allegations of child sexual abuse, it is
imperative that the social worker should remain neutral and objective at all times. When
investigating such allegations Aucamp (2012a:2) advocate three approaches. These
approaches are: A blind, history-free, uninformed approach; An informed approach or an
allegation-blind approach.
It is generally accepted that through the use of the uninformed approach the objectivity of the
social worker is enhanced. This is due to the fact that in this approach restricted information
is passed on to the social worker, i.e. she has no prior knowledge regarding the perpetrator
or the allegations, but only knows the name, gender and age of the specific child (Aucamp,
2012a:5). Faller (2007:41-43) declares that in order to ensure objectivity the postulation of
alternative hypotheses form part and parcel of the task of the social worker. The social
worker is enabled to formulate these varied hypotheses when as much information as
possible relevant to the specific situation is collected. The collection of this data ensures that
important information does not get lost and that no alternative explanation can be given for
the allegations.
Hewitt (1999:214) points out that many factors can add to the child’s inability to cooperate
during a formal forensic investigation. Du Plessis (2012:1) therefore recommends a socioemotional
evaluation which will enable the investigator to understand the child’s cognitive,
social, emotional, speech and language development as well as the scope of his attention
span and level of cooperation. The gathering of all this information is made possible because
of the structured nature of the pre-forensic evaluation process. Within the scope of the forensic field the term and concept ‘pre-forensic evaluation’ is
relatively new. This process is regarded as a mechanism to sift through data in order to
evaluate the child’s level of development as well as the social and behavior issues within the
focus of the extended forensic investigation process (Carnes, Nelson-Gardell, Wilson &
Orgasa, 2001:238).
The objective of this research project was to establish the benefits of the pre-forensic
evaluation as the starting point for investigating child sexual abuse in order to make
recommendations.
In this research the researcher used a qualitative approach which implies a broad approach
to the study of social phenomena by implementing a variety of research methods. As this
field of forensics is relatively new in South- Africa, the researcher is of the opinion that this
research will add to the theoretical and empirical base of knowledge regarding the benefits of
the pre-forensic evaluation as part of the extended forensic investigation process.
The following participants were involved and methods utilized to reach the objective of this
explorative study:
• 8 registered social workers , resident in Gauteng;
• 10 client files projecting the use of the pre-forensic investigation process in the lives
of children between ages 3 and 6 and where possible sexual abuse was suspected.
The methods of data collection involved semi-structured interviews as well as document
analysis. Data was processed by means of transcriptions, which elicited various themes and
sub-themes which in turn led the researcher to come to specific conclusions in order to make
certain recommendations.
• All 8 participating registered social workers have applied the pre-forensic evaluation
as starting point of the investigation into allegations of sexual abuse;
• All 8 participating registered social workers preferred to follow the uninformed
approach and agreed on the benefits of this process;
All respondents agreed on the following benefits of the pre-forensic evaluation process:
• It provides a holistic view on the child’s socio-emotional functioning;
• It improves and enhances objectivity and neutrality on the part of the investigator and
the investigation; • It enables the researcher to complete a competency evaluation of the child within a
non-threatening environment;
• It provides ample opportunity for the social worker to build rapport with the child;
• It provides guidelines to be followed during the formal forensic investigation process.
The researcher also found that none of the participants relayed specific disadvantages
regarding the use of the pre-forensic evaluation process.
Another theme which crystallized when data was analyzed was that the pre-forensic
evaluation structure is sufficient to serve as a screening instrument.
The following practical recommendations came to the fore in the process of data analysis:
• To divide the pre-forensic evaluation process into two or more sessions;
• To allow only trained professional workers to implement the pre-forensic evaluation
process;
• To standardize the pre-forensic evaluation process for investigating presumed sexual
offences;
• That pre-forensic evaluation be utilized in the case of all children in need of care and
not only when sexual abuse is suspected;
In conclusion, with regard to future research themes the researcher would like to propose the
following:
• The evaluation of valid evaluation techniques which could be included in the preforensic
evaluation structure;
• The evaluators’ experience and perception regarding the pre-forensic evaluation
structure;
• The effectiveness of using the pre-forensic evaluation structure as a screening
instrument;
• The reactions and perceptions shown by members of the SAPS and Social Welfare
Services with regard to using information that was gathered and passed on to them by
means of pre-forensic reports.
The researcher believes that this research successfully showed the benefits of the preforensic
evaluation process when investigating suspected cases of child sexual abuse. She
also believes that if the recommendations of this study would be followed, the whole
processed could be streamlined and if the suggested themes were explored, the base of knowledge regarding the pre-forensic evaluation structure would be broadened to benefit all
parties involved in this process.
2013
Thesis
other
http://hdl.handle.net/10394/11734
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11734/1/Labuschagne_L.pdf
86e3072feaf759e9e3fc8e2a304801d3
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11734/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11734/3/Labuschagne_L.pdf.txt
a1e4c74211dac15a3f5ad596c8679f07
Pre-forensiese evaluering
Forensiese ondersoekproses
Seksuele misbruik van ‘n kind
Pre-forensic evaluation
Forensic evaluation process
Child sexual abuse
oai:repository.nwu.ac.za:10394/109772015-10-20T07:30:17Zcom_10394_1865col_10394_1872oai:repository.nwu.ac.za:10394/49442018-03-14T12:09:56Zcom_10394_26463col_10394_26475
The effects of part–of–speech tagging on text–to–speech synthesis for resource–scarce languages
Schlünz, Georg Isaac
Barnard, E.
Van Huyssteen, G.B.
Van Niekerk, D.R.
In the world of human language technology, resource–scarce languages (RSLs) suffer from the problem of little available electronic data and linguistic expertise. The Lwazi project in South Africa is a large–scale endeavour to collect and apply such resources for all eleven of the official South
African languages. One of the deliverables of the project is more natural text–to–speech (TTS) voices. Naturalness is primarily determined by prosody and it is shown that many aspects of prosodic modelling is, in turn, dependent on part–of–speech (POS) information. Solving the POS problem is, therefore, a prudent first step towards meeting the goal of natural TTS voices. In a resource–scarce environment, obtaining and applying the POS information are not trivial.
Firstly, an automatic tagger is required to tag the text to be synthesised with POS categories, but state–of–the–art POS taggers are data–driven and thus require large amounts of labelled training data. Secondly, the subsequent processes in TTS that are used to apply the POS information towards prosodic modelling are resource–intensive themselves: some require non–trivial linguistic knowledge; others require labelled data as well. The first problem asks the question of which available POS tagging algorithm will be the most accurate on little training data. This research sets out to answer the question by reviewing the most popular supervised data–driven algorithms. Since literature to date consists mostly of isolated papers discussing one algorithm, the aim of the review is to consolidate the research into a single point of reference. A subsequent experimental investigation compares the tagging algorithms on small training data sets of English and Afrikaans, and it is shown that the hidden Markov model (HMM) tagger outperforms the rest when using both a comprehensive and a reduced POS tagset. Regarding the second problem, the question arises whether it is perhaps possible to circumvent the traditional approaches to prosodic modelling by learning the latter directly from the speech data using POS information. In other words, does the addition of POS features to the HTS context labels improve the naturalness of a TTS voice? Towards answering this question, HTS voices are
trained from English and Afrikaans prosodically rich speech. The voices are compared with and without POS features incorporated into the HTS context labels, analytically and perceptually. For the analytical experiments, measures of prosody to quantify the comparisons are explored. It is then also noted whether the results of the perceptual experiments correlate with their analytical counterparts. It is found that, when a minimal feature set is used for the HTS context labels, the addition of POS tags does improve the naturalness of the voice. However, the same effect can be accomplished by including segmental counting and positional information instead of the POS tags.
North-West University
2010
Thesis
http://hdl.handle.net/10394/4944
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4944/1/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4944/2/Schlunz_GI.pdf
dd62f88d3163e26639cd8e1849ff0140
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4944/3/Schlunz_GI.pdf.txt
e0acb213d943fdc8d3509b00ddd2d56c
part-of-speech tagging
text-to-speech synthesis
resource-scarce language
naturalness
prosody
HTS context labels
oai:repository.nwu.ac.za:10394/424282024-02-21T13:23:31Zcom_10394_26463col_10394_26478
Biodiversity and systematics of parasitic Crustacea infesting southern African freshwater fishes
Ayawei, Precious Preye
Malherbe, K.A.
Smit, N.J.
van As, L.L.
Crustaceans (Arthropoda: Crustacea) are regarded as the most morphologically diverse group in the phylum Arthropoda, and they have the greatest diversity of parasitic forms. Parasitic crustaceans have adapted several morphological and physiological characteristics that enable them to thrive in an array of habitats and hosts. Freshwater parasitic crustaceans are mostly found attached to the external surfaces of their host. These attachment structures are also adapted to the sites of infestation on their hosts. As a result of the pathological impacts of certain parasitic crustaceans on fish, they have been regarded as species of economic and commercial importance. Individuals from the families Argulidae, Ergasilidae, and Lernaeidae are most frequently reported throughout Africa, including both native and invasive parasite species. In southern Africa, however, these reports proved to be limited compared to other regions, therefore suggesting an underrepresentation of the actual diversity of parasitic crustaceans. In addition to scarce distribution records, only a few integrative studies from southern Africa have been carried out on some of these parasites. It was therefore hypothesised that with broader sampling across several localities and hosts in southern Africa, there will be an increased knowledge of the diversity of parasitic crustacean species present in the different river systems as well as new hosts and locality records, in addition to the possible description of new species. More so, the integration of improved morphological techniques and molecular analyses would provide novel information on the morphological characteristics of these species while adding new DNA sequences to the scanty database.
In collaboration with the Aquatic Research Group of the University of the Free State, Bloemfontein, as well as several ongoing parasitology projects of the Water Research Group of the North-West University, Potchefstroom, this study aimed at linking distribution data of parasitic crustaceans with morphological and molecular data. Native and exotic fishes belonging to six families (Alestidae, Centrarchidae Cichlidae, Clariidae, Cyprinidae, and Hepsetidae) were collected from several localities in southern Africa. With an integration of morphological (light and scanning electron microscopy) and molecular (partial 18S, 28S, and COI genes) techniques, four native species (Ergasilus mirabilis Oldewage & van As, 1987; Lamproglena clariae Fryer, 1956; Lamproglena hepseti van As & van As, 2007; Lamproglena monodi Capart, 1944), three known invasive species (Argulus japonicus Thiele, 1900; Lernaea cyprinacea Linnaeus 1758; Neoergasilus japonicus (Harada, 1930)), and one new species Neoergasilus sp. nov., were described from the current study. Previous records of Ergasilus mirabilis, a widely distributed species in southern Africa, lacked genetic data. A total of 159 Clarias gariepinus (Burchell, 1822) were caught from various locations in South Africa and Zambia and adult female copepods were collected from two South African localities (Kushokwe Pan and Vaal River) and the Zambezi River in Zambia. Morphological examination confirmed the specimens as E. mirabilis with slight variability in the number of spines and setae from the original description. Molecular analyses included partial ribosomal RNA (18S and 28S) and mitochondrial DNA (COI) genes, providing genetic data to support the morphological characteristics of E. mirabilis. Additionally, new distribution records of E. mirabilis in the Phongolo Floodplain and the Vaal River are reported. The study further reported on species from the genus Lamproglena, which are gill ectoparasites found on African fish hosts in the families Cichlidae, Clariidae, and Hepsetidae. Three Lamproglena species (L. clariae, L. hepseti, and L. monodi) reported from this study are native to southern Africa. Lamproglena clariae is reported for the first time from the Phongolo Floodplain and Nyamiti Pan in South Africa, and from West Lunga in Zambezi. This study also provided genetic data using three genetic markers, which is a notable contribution to the limited molecular data available for Lamproglena species globally. Additional information on the maxillipeds, antennae, and antennules morphology of L. hepseti was also provided. New distribution records as well as the first molecular characterisation of the invasive fish lice Argulus japonicus in Sub-Saharan Africa was also provided from this study. Four fish species: Clarias gariepinus; Cyprinus carpio Linnaeus, 1758; Labeo umbratus (Smith, 1841); Labeobarbus aeneus (Burchell, 1822) were caught from seven different sites along the Orange-Vaal River System and found to be hosts for this argulid. With morphological identification and genetic analysis, parasites collected from these sites were positively identified as A. japonicus. The presence of this invasive species in the Orange-Vaal River System was confirmed and this study further adds to the available knowledge on the distribution of this species, including the addition of a possible new larval stage, and successfully links genetic data for both larval and adult stages to morphology. Lernaea cyprinacea, commonly known as an anchor worm, was also reported from this study. This copepod parasite infests various fish species worldwide and has detrimental effects on fish health. The study provided molecular characterisation of L. cyprinacea from multiple localities in South Africa. This study provided the first record of L. cyprinacea infestation in South Africa on its type host, Cyprinus carpio, Linnaeus, 1758 as well as a new host, Labeobarbus aeneus (Burchell, 1822), within the Orange-Vaal River System. Lernaea cyprinacea was additionally reported for the first time in locations within the Phongolo Floodplain and the Vaal River, and the introduction of this invasive species in the Incomati System was also noted. Lastly, the study reports on two ergasilid species from the genus Neoergasilus: N. japonicus and Neoergasilus sp. nov. Neoergasilus japonicus is an invasive ergasilid with an almost global distribution. In contrast to numerous reports from other continents, the records from southern Africa seem to be from unpublished abstracts and dissertations. This study provides the first integrative study of N. japonicus from Africa and the southern hemisphere and gives the first record of this species from the African tigerfish host, Hydrocynus vittatus Castelnau, 1861. Additionally, the novel Neoergasilus species not previously known to science is described from the sharptooth catfish, C. gariepinus. The integration of morphological identification with genetic data confirms the validity of the sequences generated and provides valuable insights into all parasite groups presented in the current study. The sequences generated for 18S, 28S, and COI are a significant contribution to future parasitic Crustacea studies in southern Africa and across other regions. This study provides an update on the distribution range of these native and invasive parasitic crustaceans in the various river systems sampled, which would serve as a base for future biodiversity and evolutionary studies. As all river systems and host species in southern Africa were not reported on, more robust sampling of other systems and from other host species is recommended for further integrative studies and evolutionary significance of these parasites.
North-West University (South Africa)
2023-10
Thesis
en
http://orcid.org/0000-0002-7443-1861
http://hdl.handle.net/10394/42428
https://repository.nwu.ac.za/bitstream/10394/42428/1/Ayawei%20PP.pdf
1eff187e738f7876b2dfe0d79d0a28f8
https://repository.nwu.ac.za/bitstream/10394/42428/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/42428/3/Ayawei%20PP.pdf.txt
2a70dadde572a7b7ca72c2548efa01de
Freshwater fish parasitology
Incomati System
Integrative taxonomy
Mitochondrial DNA gene
Ribosomal RNA genes
Okavango River and Delta
Orange River
Phongolo River
Vaal River
Zambezi River
oai:repository.nwu.ac.za:10394/411182023-05-02T01:04:08Zcom_10394_26463col_10394_26478
Interaction studies of imidazolium based ionic liquids with organic acids and acetophenone : thermodynamic, spectroscopic, and theoretical approaches
Masilo, Kgomotso
Bahadur, Indra
Ionic liquids (ILs) are salts that are primarily composed of cations and anions. They exist as
liquids below 100°C or at room temperature, which is why they are sometimes referred to as
room-temperature ionic liquids (RTILs). These salts are receiving a great deal of attention in a
wide range of fields of chemistry and chemical engineering, this is due to their fascinating
physicochemical properties like low volatility, vapour pressure, high thermal, chemical
stability, good electrical conductivity and low flammability. Amongst these, the most appealing
property is their ability to be customized to fulfil individual needs for various applications. This
is done by making changes to the N-alkyl substituents or the hydrogen atoms attached to the
imidazolium ring of the cation as well as the anion constituent, thus varying their structure. To
use ILs as solvents, it is necessary to know how they behave in the presence of other chemicals,
like conventional solvents such as alcohols or carboxylic acids as well as water, which are
widely employed in extraction and separation processes. The nature of ILs therefore has a
significant impact on the efficiency of chemical processes (e.g. synthesis, extraction, and
separation). It is worth mentioning that, adding a small quantity of one or more conventional
solvents, changes the physicochemical properties of ILs dramatically. Mixtures of ILs provide
knowledge of different types of interactions which are absent in their pure state. ...
North-West University (South Africa)
2022
Thesis
en
https://orcid.org/0000-0002-0400-0732
http://hdl.handle.net/10394/41118
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41118/1/Masilo%20K.pdf
cc667e2996eb35f44fb590d27d4dae1d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41118/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41118/3/Masilo%20K.pdf.txt
9a08348bcd272ca8fe05c0b390cbd203
Ionic liquids
Binary mixture
Ternary mixture
Thermophysical properties
Thermodynamic properties
Modelling
Redlich-Kister polynomial equation
oai:repository.nwu.ac.za:123456789/407952023-03-24T01:04:14Zcom_10394_26463col_10394_26475
An automated method to determine dynamic pump efficiencies in deep-level mines
Modiba, Malesela
Vosloo, J.C.
Deep-level mines use dewatering systems that are responsible for the removal of underground water. A dewatering system consists of a series of dewatering dams and pumps. Dewatering pumps are responsible for pumping water from lower-level dams to upper-level dams. The water is moved through pumps and pipes until it reaches the mine’s surface.
Due to harsh conditions under which dewatering pumps operate, their efficiencies deteriorate rapidly. Research revealed a gap in literature pertaining to quantifying dewatering pump efficiencies in deep-level mines, considering the data challenges faced by the industry. The challenges relevant to this study were found to be missing data that occur due to limited instrumentation or communication issues, static data challenges due to faulty instrumentation issues or communication issues, and inaccurate data such as negative values.
This study followed a data analysis approach to develop a methodology through which the data challenges were addressed. The data analysis process revealed that pump discharge flow rate, discharge pressure and power consumption readings were critical to the accuracy of efficiency measurements. A unique and automated method was developed through which dewatering pump efficiencies can be quantified despite the challenges.
The developed method was tested on two case studies. The case studies are from a deep-level gold mining group in South Africa. Results from both case studies highlighted the data challenges and thus the importance of having a data quality monitoring system. From the results, it is also clear that, despite the data challenges, pump efficiency is quantifiable.
The solution was automated to require minimal human intervention and can also help mines reduce the cost associated with hiring external contractors who conduct efficiency audits. The solution can also help enhance labour productivity. The developed method can be applied to any deep-level mine that uses dewatering pumps.
North-West University (South Africa).
2022
Thesis
en
https://orcid.org/0000-0001-6967-0588
http://hdl.handle.net/123456789/40795
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40795/1/Modiba_M.pdf
309a0b04133447c63894b4b54c93c63d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40795/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40795/3/Modiba_M.pdf.txt
1518dd8f41209f02a8eed22d4f54a7d2
Dewatering
Pump efficiency
Continuous
Automatic
Data quality
DA
oai:repository.nwu.ac.za:10394/6572018-06-20T07:13:18Zcom_10394_26463col_10394_26477
The development of a programme for the facilitation of coping skills for rural adolescents who have been exposed to community violence
Waldeck, Chantal
Nienaber, Alida W.
Many children and adolescents in South Africa are being exposed as witnesses or are direct victims of violence in today's society. The purpose of this study is to explore what violent exposure adolescents have
experienced and to develop a programme that includes coping skills, expression of emotion and communication. The research formed part of the FLAGH study. The research was done in the form of action research where the adolescents took part in the whole process of developing the programme. The study was done in four phases. In the first phase a random sample of 36 adolescents from Fikadibeng School in the North West Province were selected. They completed the Coping Responses Inventory-Youth Form, the Survey of exposure to community violence, Things I have seen and heard questionnaire and the Self-expression and control scales. In the second phase the programme was developed using the results of the pre-testing and a literature study on the effects of the exposure of violence on children. During the third phase the developed programme was pilot tested on a
randomly selected group of the children and the post-testing took place in order to evaluate and adjust the programme according to the results found. Suggestion for the adjustment of the programme was done during the fourth phase of the study. Adolescents were largely exposed to community violence. They also displayed tendencies to internalize anger and used
looking for guidance and cognitive avoidance as part of their coping repertoire. The programme proved to benefit the children in their coping with violence. It is recommended that for the future, larger groups of adolescents should be evaluated and programmes should be presented to a
larger community in order to assist adolescent in their use of coping skills.
North-West University
2004
Thesis
http://hdl.handle.net/10394/657
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/657/1/waldeck_c.pdf
9685f667ea7fadd2431a7d9e65c73cb2
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/657/2/license.txt
6998e148639d3c25fbb087fc5a04c173
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/657/3/waldeck_c.pdf.txt
f9acaffa9d7f201224ab215cf86b09f1
Adolescents
Violence
Violent exposure
Coping skills
oai:repository.nwu.ac.za:10394/142782020-09-17T08:32:04Zcom_10394_26463col_10394_26477
A structural, semiotic analysis and interpretation of L.Z. Sikwane's play Matshediso, with emphasis on didascalies
Zebediela, Malefsane Hannah
Viljoen, H.M.
Pretorius, R.S.
The aim of this study is to analyse and interpret L.Z. Sikwane's play: Matshediso from the perspective of didascalies. The study comprises five chapters. The aim, scope and methods of research are outlined and motivated in chapter one. In chapter two, an overview of the research into didascalies is undertaken. Questions such as: "what are didascalies?" "how do didascalies in a play help produce meaning and shape?" etc. are dealt with. Later, the study shows how didascalies are linked to the other structural elements of drama such as theme; plot; characters and setting. In chapter three an analysis and interpretation of Matshediso from the perspective of the importance of didascalies is undertaken. This analysis focuses on the plot; didascalies and characters; didascalies and space; and didascalies, props, and set. Limitations characterizing performance are also dealt with. In chapter four, an integrated interpretation of Matshediso is provided. Thereafter a set of guidelines for performing the play is developed. This covers aspects such as: stage setting; the characters; dialogue; sound and costume. Chapter five sum up the main findings of the study and the value of the didascalies approach. By way of conclusion, I argue that Sikwane has not just written a play, but also pictured how it should be performed. This is confirmed by the didascalies included in this play and the value of the didascalies approach.
2001
Thesis
en
http://hdl.handle.net/10394/14278
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14278/1/Zebediela_MH.pdf
7c04f4b9aa0c76bd0575de0a1a245bbf
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14278/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14278/3/Zebediela_MH.pdf.txt
04fe9c52f849bf39bc5779c5795bcd8b
Drama
Plays
Stage
Semiotic approach
Performance
Didascalies
Matshediso
Setswana
Sikwane L Z
oai:repository.nwu.ac.za:10394/416042023-05-31T01:08:34Zcom_10394_26463col_10394_26473
Riglyne vir die ontwikkeling van 'n ekotoerisme-attraksie : met spesifieke verwysing na vleilande
Myburgh, Elsie Maria
Saayman, M.
South Africa, undoubtedly, has the natural resources and unique cultural diversity to become
and internationally acclaimed ecotourism destination. The Country's natural resources can be
a major contributor to long-term economical success should a sound and viable tourism
infrastructure be in place. The effective management of tourism and the natural resources of a
country plays an important role in future tourism development, which in return will ensure
environmental and economical sustainability.
The thesis discusses guidelines for the development of an ecotourism attraction, with specific
reference to wetlands and the impact of ecotourism on wetlands,
The study has lead to the following conclusions, e.g.:
• Wetlands can maintain a variety of plant- and wildlife and therefore ecotourism
development is essential as a long-term goal and objective of developers and role-players
in a tourism field.
• Sustainable ecotourism has a definite impact on wetlands and the local community
influencing:
job opportunities and job creation;
improvement of the infrastructure;
the conservation and respect for the local culture;
the conservation of biodiversity; and
improving environmental quality.
The importance of wetlands, and integral part of ecotourism and environmental development,
is the sector badly neglected and yet the incorporation of wetlands in tourism related
development is crucial.
North-West University (South Africa)
2000
Thesis
other
http://hdl.handle.net/10394/41604
https://repository.nwu.ac.za/bitstream/10394/41604/1/Myburgh_E..pdf
68f5ffb1b054cf858ade851e295f49bc
https://repository.nwu.ac.za/bitstream/10394/41604/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/41604/3/Myburgh_E..pdf.txt
e8efbb86d8086c2bb7210424088c5ebd
Wetlands
Tourism
Ecotourism
Sustainable tourism development
Conservation
Environmental economy
oai:repository.nwu.ac.za:10394/402072022-11-11T09:28:01Zcom_10394_26463col_10394_26478
Characterization of Microbial Survivall in the Presence of Radioactive 14C Spiked Salts in Order to Minimize W,aste from Graphite Moderated Nuclear Reactors
Pete, Gopolang Ashy
Mathuthu, M.
The Pebble Bed Modular Reactor (PBMR) is a high temperature, Gas (HTG) (helium)
cooled reactor, which uses graphite as a moderator and a neutrons reflector. During
the reactors operation, graphite is irradiated and contains radionuclides, such as
actinides, fission and activation products.
This study investigated the removal of 14C in irradiated graphite. Two experiments
were performed. In the first experiment, non-irradiated graphite was exposed to a
Mixed Culture (MC) of bacteria for 120 hours. The objective was to determine if
bacteria thrives in the presence of inert graphite. Techniques used for graphite
analysis were Scanning Electron Microscopy (SEM) and X-Ray Diffraction (XRD).
SEM was used to verify the presence of bio-film on the graphite surface, which would
indicate bacteria survival. XRD was used to determine whether there was a change in
the graphite crystallographic structure, indicating possible metabolism of graphite
carbon by the bacteria.
A second experiment was conducted with 14C-containing salts chosen to represent the
chemical form of 14C on the surface of irradiated graphite. The MC bacteria were
exposed to these salts for 120 hours as well. The bacteria samples were analysed using
Denaturing Gradient Gel Electrophoresis (DGGE). The objective was to determine the
diversity of the bacteria thriving in radioactive carbon species.
The results obtained from the analyses were as follows; SEM results indicated that
bio-film is formed on the surface of the graphite, which indicated that bacteria can
survive in the presence of graphite. The XRD results indicated that there was no
change in the crystallographic structure of graphite whether or not there is bio-film
formation.
The DOGE results indicated that there were bacterial species that survive in 14C
containing salts. When comparing the DOGE results of both salts, sodium bicarbonate
was more dominant than sodium acetate in bacterial survival.
North-West University (South Africa)
2018
Thesis
en
https://orcid.org/0000-0001-7325-6742
http://hdl.handle.net/10394/40207
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40207/1/Pete_GA.pdf
15664feef4ee0303192ee364138fcad5
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40207/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40207/3/Pete_GA.pdf.txt
11aa2471ab72b508301cb73f81adec7f
oai:repository.nwu.ac.za:10394/132272018-03-05T05:50:05Zcom_10394_26463col_10394_26475
Applying project risk management principles to manage business start-up risk : a proposed training tool
Ntema, Ratoeba Piet
Zaaiman, Hermien Prof.
Generally, it is accepted that small businesses are becoming increasingly important in terms of employment, wealth creation, and the development of innovation in the global economy. Unfortunately, many small businesses fail before reaching maturity, mainly due to inadequate entrepreneurial skills to establish and grow their businesses. It is, therefore, vital to understand the management abilities that are required to enable start-up businesses to survive. This study's main aim is to propose a risk management training tool to assist business start-ups to mitigate their risks. This is expected to allow for increased business start-up success rates. The aim of the proposed risk mitigation tool will be to provide training to allow small business owners to deal with challenges they face. The tool should assist with minimising the risk of failure and therefore support increased growth and survival of small businesses. The research questions aimed at achieving the primary objective deal with: *The typical risks per start-up phase for small businesses *How to mitigate the risk per business start-up phase *How best to teach entrepreneurs to identify and manage business start-up risk per phase. The research was conducted by means of a literature and empirical study. The literature study reviewed business start-up phases, challenges facing start-up businesses, project life cycle phases, critical factors leading to project failure, project risk management, and principles of serious games design. The challenges facing start-up businesses were tested empirically in practice by means of a measurement instrument, and subsequently evaluated. The size of the sample used was 58 entrepreneurs from start-up businesses. The results from this study show a need for improvements in the following skills for start-up owners/managers: risk management skills, entrepreneurial skills, people management skill, business management skill, and financial management skill. This study proposed a tool to teach entrepreneurs to identify and manage start-up risks per phase. The tool is proposed to be a blended model tool. Thus, the tool consists of the workshop part; whereby, the facilitator is face-to-face with the trainee, and post-training application-based support.
North West University
2014
Thesis
en
http://hdl.handle.net/10394/13227
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13227/1/Ntema_RP.pdf
d0627aa1f416940e75d5769ee2a0b103
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13227/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13227/3/Ntema_RP.pdf.txt
11af3557dfe3d149073241ee10e7d9ff
Start-ups
Small business
Small and medium enterprises
SME
Project risk management
Project risk mitigation
Serious games
Training tool
Risk
oai:repository.nwu.ac.za:10394/414692023-05-23T01:08:23Zcom_10394_26463col_10394_26473
Koste-aspekte by terugvulmynbou
Swart, Pierre Jacques
Eloff, T.
Due to the rising costs and lower gold price experienced the last couple of years, the gold
mining industry was forced to look at alternative mining methods.
A large number of different methods were evaluated but the two most prominent were
Trackless mining and Backfill mining.
Trackless mining is a process where, as the name indicates, no rails are used. The traditional
method of coco-pans pulled by a locomotive to extract the ore from the mine is
replaced by mechanical equipment. This equipment is self powered and has wheels to
enable them to move freely without the limitations of rails.
Backfill mining is the process where the waste out of the recovery process is used to fill the
areas that has been mined out. When the waste leaves the gold and uranium plant it goes
through an additional recovery process. At this stage the waste has a very low gold content
and can be used to fill the mined-out areas.
The waste, in a slimish form, is pumped to the section underground where the backfilling
is taking place.
The complexity of the method created many costing problems for the mining industry. Vaal
Reefs Mining and Exploration Co. (Pty) Ltd approached me to identify the problem areas
in backfill mining and to make the necessary recommendations in order to solve the
problems.
For this purpose the whole backfill process was broken down into different cost centres.
They were identified as:
• from the gold and uranium plant to the backfill recovery plant,
• the backfill recovery plant,
• from the backfill recovery plant to the backfill control station at the mine,
• from the backfill control station to the work area where the actual backfilling is done.
Every cost centre was evaluated separately and problem areas were identified. The main
problem areas are:
• No accrual is made for the income received from the backfill recovery plant and is
not written off against the cost of the plant.
• Two different methods can exist in the backfill recovery plant:
n The first where all the slime goes through the backfill recovery plant regardless if
it will be used in the backfill process or not.
The problem that exists with the first method is that the slime, that is treated to be
used in backfill process, carries all the costs and no costs are carried by slime that
is pumped to_the slime dams.
To solve the problem, joint costs must be identified. This cost will ten be allocated,
- based on a percentage base to the different types of slime. The percentage must
be determined by deviding the tons of slime used in the backfill process over the
total tons of slime treated in the backfill recovery plant. ...
North-West University (South Africa)
1991
Thesis
other
http://hdl.handle.net/10394/41469
https://repository.nwu.ac.za/bitstream/10394/41469/1/Swart_P.J..pdf
5314dd2134b673b67b72eb6225bdbf22
https://repository.nwu.ac.za/bitstream/10394/41469/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/41469/3/Swart_P.J..pdf.txt
1c824996d08b2dfebabc4610b5b874af
oai:repository.nwu.ac.za:10394/131892020-08-24T07:22:02Zcom_10394_26463col_10394_26473
Capacity building programmes for the skills development of employees at the Gauteng Department of Education
Machika, Dimakatjo Mokgaetji
Vyas-Doorgapersad, Shikha
Since the inception of the National Skills Development Framework for Employees in Public Education in 2006, every organisation has its own WSP to offer skills development training to employees. This study aims to analyse the implementation challenges of the capacity building programme/s at head office of the Gauteng Department of Education. These programmes, including internships, workplace skills plan and short courses were explored from the circumstantial status at the national level (general) and will focus on the Gauteng Department of Education (specific context). In this context, the study sets out to explore the following specific problem exploring that there are challenges in the effective implementation of capacity-building programmes for job-related skills development of employees at Gauteng Department of Education at managerial levels. In the search for answers to the research problem, a hypothesis was formulated, and various primary and secondary sources were utilised. The findings from the literature review and empirical research undertaken in this study indicate that there are significant challenges to overcome in the effective implementation of capacity-building programmes. The study offers relevant recommendations to improve the challenges.
North West University
2014
Thesis
en
http://hdl.handle.net/10394/13189
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13189/1/Machika_DM.pdf
f0a8513fc15b8ff3f6bdced0a4faf8d8
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13189/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13189/5/Machika_DM.pdf.txt
4946c3c975aa57b2c86d958f6e4c6933
Capacity building
Skills development
Workplace skills development plan
Human resource development
Employee performance
Organisational productivity
Gauteng Department of Education
oai:repository.nwu.ac.za:10394/191972020-11-19T12:32:52Zcom_10394_26463col_10394_26478
Characterisation of air masses passing over the Vredefort Dome world heritage site
Dunn, Marcell
Beukes, J.P.
Van Zyl P.G.
In 2007, it was announced that the Vredefort Dome will be proclaimed South Africa’s seventh UNESCO (United Nations Educational, Scientific and Cultural Organisation) world heritage site. It is the largest and second oldest meteorite impact structure in the world and is situated in the Witwatersrand basin (containing ~40% of the world’s gold resources). In addition to the economic importance of the Vredefort Dome, it is of great geological (e.g. large meteorite crater with inverted sedimentary structures); cultural and historical (e.g. stone age caves with tools and human remains, Khoi-San rock art, remnants of the Anglo-Boer war and old gold mines); conservational (e.g. diverse indigenous plant, animal and bird species, as well as water quality associated with the Vaal river); and aesthetic (e.g. providing unique scenery with associated ecotourism opportunities) significance in South Africa. Air quality in the Vredefort Dome can potentially be affected by the nearby declared air pollution priority areas, i.e. the Vaal Triangle Airshed Priority Area (VTAPA), the Highveld Priority Area (HPA) and the Waterberg Priority Area (WPA), as well as the Johannesburg-Pretoria (Jhb-Pta) megacity, which is well-known for high levels of atmospheric pollution. Notwithstanding the national and international importance of the Vredefort Dome, as well as the proximity of the afore-mentioned polluted source regions, currently, no air quality data is available for this area. The management plan, as required by the UNESCO declaration, also highlighted this deficiency. In an effort to partially address the air quality knowledge gap, air masses from 1 June 2010 to 28 February 2014 passing over the Vredefort Dome were isolated and analysed at the Welgegund atmospheric measurement station as a proxy for ground-level air quality over the Vredefort Dome. Atmospheric species reported on in this thesis are in accordance with the National Ambient Air Quality Standards (NAAQS). The proxy method applied had some limitations, since the frequency of such back trajectories was limited and those that did comply passed mostly over the cleaner south-western sector from the Vredefort Dome. Additionally, dilution during transport and aging of air masses after passing over the Vredefort Dome before arriving at Welgegund could also affect the pollutant levels observed.
By comparing the results with South African air quality standards, it is evident that O3 and PM10 exceeded the South African air quality standard limits. O3 is a regional problem, while PM10 mostly originates from industries, household combustion and savannah/grassland fires. Although there were no exceedances recorded for SO2 and NO2 in air masses complying with the selection criteria, it is highly likely that such exceedances will occur over the Vredefort Dome. It is suggested that emission interventions for industrial activities, the vehicular fleet, as well as savannah and grassland fires be done in order to address species of regional concern. In order to address household combustion emissions, social and economic transformations in South Africa need to be accomplished, which are linked to the economic success and -growth of the country.
North-West University (South Africa)
2015
Thesis
en
http://hdl.handle.net/10394/19197
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/19197/1/Dunn_M_2015.pdf
a163790d49813607861a97bdee684dd2
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/19197/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/19197/3/Dunn_M_2015.pdf.txt
bf660c61dd59583e049e562475cb6fd7
Vredefort Dome
World heritage site
Air quality
Welgegund
South Africa
oai:repository.nwu.ac.za:10394/16282019-06-24T09:35:32Zcom_10394_26463col_10394_26464
Insurance for environmental damage : a South African perspective
Kruger, Erlise
Kotzé. L.J.
Stander, L.
North-West University
2007
Thesis
http://hdl.handle.net/10394/1628
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/1628/1/kruger_erlise.pdf
444d979f73321583b3ea64e5ce8ab8ed
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/1628/2/license.txt
cf0c12dc0fa6ad8fc791d8b38a727c51
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/1628/5/kruger_erlise.pdf.txt
90afa2bca29d914c7f76cbffb5850903
oai:repository.nwu.ac.za:123456789/408462023-04-14T01:03:53Zcom_10394_26463col_10394_26478
Age structured population dynamics with applications in epidemiology
Madito, Gladstone Thabo
M'pika Massoukou, R.Y.
Oukouomi Noutchie, S.C.
Models describing the dynamics of biological phenomena that evolve in stages have been
studied extensively using time-delay mathematical models. Recently, these models have
evolved into age structured models with age dependent variables. Various mathematical tools have been employed to study these models and investigate the effects of age
structure. This work explores two age structured models to address the issues of latent
infection of cells by Human Immuno-deffciency Virus (HIV) and the effects of latent Tu-
berculosis (TB) infection on the dynamics of HIV. We consider models discussed on the
transmission dynamics of HIV by multiple cell types through two transmission routes
within-host and on the co-epidemic of HIV and TB. Latency of infected cells provides
a major challenge to the elimination of HIV within-host since the virus persists at low
levels within the latent population. Furthermore, the spread of viral particles through
each transmission route may facilitate the progression of the disease due to continued
infection of cells by infected cells or free viral particles. Investigating the dynamics of a
HIV and TB co-epidemic provides insights into the effects of latency and the long term
behavior of the synergistic relationship between HIV and TB. In this work, we extend the
integer order systems of differential equations studied in [Xia, 2017] and [Xiaoyan, 2013]
to fractional order. The within-host dynamics are described by a system of Caputo
fractional derivatives while the co-epidemic by a system of Caputo-Fabrizio fractional
derivatives. The equilibrium points of each system are obtained and the reproduction
numbers of the diseases are computed. It is shown that the reproduction number of HIV
through each transmission route contribute to the reproduction number of HIV through
each cell type. Furthermore, the local asymptotic stability of the disease-free equilibrium
is established.
North-West University (South Africa)
2022
Thesis
en
https://orcid.org/0000-0001-7733-2087
http://hdl.handle.net/123456789/40846
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40846/1/Madito%20GT.pdf
6157c414a08d7b786e0a382ee9bc0d73
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40846/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40846/3/Madito%20GT.pdf.txt
d22f8713e88f0fc828b5ccfc11f5ede9
Age structure
Fractional differential equations
Laplace transform
Lipschitz continuity
Second mean value theorem
Reproduction number
Local asymptotic stability
oai:repository.nwu.ac.za:10394/4892018-03-01T13:33:32Zcom_10394_26463col_10394_26479
Trichotomous therapy : a proposed pastoral paradigm
Joubert, Pieter
The relationship between Psychology and Theology has become an issue of increasing
concern in recent years for the Christian community. With the growing complexities of
cultural differences, the moral decline of society and its drift away from a Christian
worldview, the pastoral ministry seems to be as challenging as ever.
The problem about the relationship between theology and psychology is that there is
growing confusion in today's Christian community about the best way to help people
overcome their personal problems of living. In this regard some scholars believe that
Christians should only submit to Biblical counselling, while others support psychotherapy, as
long as it is integrated with Biblical principles and has a firm Scriptural foundation.
In researching the literature on the subject, it was found that various theoretical models
have been defined and described as attempts to scientifically justify the union of the
above mentioned two points of view.
In this thesis the viewpoints of four prominent groups of scholars about the subject are
described and analysed in order to determine to what extent will it be possible to identify
common denominators amongst their different models and to eventually establish if it is
possible to formulate a synthesis about the commonalities so defined.
The integration models of the following four prominent groups of authors about the
subject were analysed: (1) Larry Crabb (1977); (2) William T. Kirwan (1993), (3) John D.
2
Carter & Bruce Narramore (1979) and (4) Eric L. Johnson & Stanton L. Jones, eds., (2000).
These scholar's contributions were chosen for analysis because, from the research about
the subject, it was found that these 4 groups of authors made some of the most
significant scientific contributions about the integration of theology with psychology.
Before attempting to formulate a pastoral paradigm out of a synthesis of the
contributions of the aforementioned scholars, it was fundamentally important to
distinguish between the 3 prominent views of man. Some scholars argue that man is a
monistic being, while others defend a dichotomous view of man as consisting of a body and
a soul. A third significant view describes man as consisting of three significant parts,
namely a body, a soul and a spirit.
In this thesis it was argued that the trichotomous view of man was the most correct way
of defining the fundamental composition of man.
According to the researcher an understanding of the trichotomous nature of man is
important as it serves as a theological basis for pastoral counselling in order to clearly
communicate the precise truths of the believer's union with Christ.
In the last part of the thesis a practical pastoral paradigm was proposed based on the
trichotomous view of man in which psychology and theology can be harmoniously integrated
by means of a meta-systemic approach. The first phase of the paradigm focused on a
model within which Psychotherapy can be applied while the second phase described
Spirituotherapy as a model within which pastoral counselling can be applied.
North-West University
2005
Thesis
http://hdl.handle.net/10394/489
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/489/1/joubert_pieter.pdf
02a8d46a82b45ba17ad6c694157eb710
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/489/2/license.txt
83974baee0a23c9f53bcf331b27bb1a8
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/489/3/joubert_pieter.pdf.txt
55a6d6fcc5d41d37d2f289166c3074f6
Client
Counselee
Counseling
Counselor
Dichotomous
Monism
Paradigm
Pastoral
Patient
Psychology
Theology
Therapy
Trichotomous
oai:repository.nwu.ac.za:10394/417502023-06-15T01:08:24Zcom_10394_26463col_10394_26477
Der aubenseiter in Heinrich Bolls Epischer kunst : eine typologische untersuchung
Boonzaaier, Ursula
Van den Berg, B.H.J.
Through centuries the concept of the hero has undergone changes, with the
result that the grand hero of old has become an anti-hero or outsider. Many
well-known twentieth century authors, including Heinrich 8611, are increasingly
making use of this figure. In this dissertation the use of the outsider in the epic
art of 8611 is subjected to critical analysis in accordance with certain
typological models.
The development of the concept of the hero in different eras is discussed
chronologically, followed by an exposition of the etymological origins of the
concept of the outsider, its forms of manifestation, its essential characteristics
as well as the purpose to which authors, among whom 8611, apply this figure.
Different typological models, all work-immanent, are discussed. The main
thrust, however, is devoted to the identification model of H.R. Jauf3, with
reception aesthetics as axiom. In accordance with the reader' s reception of
the hero, five modalities of identification are defined namely associative,
ad mi rational, sympathetic, cathartic and ironical identification.
Thereafter the occurrence of the outsider in the work of Boll is discussed : in
this regard all of his novels as well as some of his short stories are examined.
It transpires that the following themes occur in almost all of his works : the
outsider as artist, the outsider in a violent society, the influence on, and of, the
outsider within the family circle, the outsider and religion, the outsider and the
prosperity-centered society. For the sake of completeness the scope includes
interviews with Boll as well as essays by him, in which he expresses himself
on the themes mentioned.
Distinction is made between willing and unwilling, creative, destructive,
biological and phlegmatic outsiders , all of whom manifest typical
characteristics of the outsider, for example loneliness and incompatibility.
Their alienation is usually patently visible, but in some it manifests inwardly
only. Most of the outsiders eventually tragically go under, some try in vain to
adapt, while others fruitlessly attempt to change society. With regard to their
reception by the reader, the outsiders of Boll without exception belong to the
last three modalities of Jaul3 - sympathetic , cathartic and ironical identification.
Finally it is evident that the actuality of 8611 resides not only in his application
of the outsider, but also in the message which his outsiders want to convey,
namely the dangers which a materialistic, prosperity-centered and
consumerized society poses to the individual, as well as the duty which
everyone has to make this world a more secure and hospitable home for all.
North-West University (South Africa)
1992
Thesis
other
http://hdl.handle.net/10394/41750
https://repository.nwu.ac.za/bitstream/10394/41750/1/Boonzaaier_U..pdf
7241897e2c1147da425a023c4e36ad63
https://repository.nwu.ac.za/bitstream/10394/41750/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/41750/3/Boonzaaier_U..pdf.txt
22b6477bf2a8dd1e415a1a2d35818e6a
oai:repository.nwu.ac.za:10394/96452018-05-14T08:43:26Zcom_10394_26463col_10394_26476
Global fibrinolytic potential of black South Africans in the North West Province
De Lange, Zelda
Pieters, M.
Jerling, J.C.
Rijken, D.C.
INTRODUCTION AND AIM - The prevalence of cardiovascular disease (CVD) has increased significantly in the black South African population in recent years. Early in the development of CVD, atherosclerotic plaques form in the vessel wall. When this plaque becomes unstable and ruptures, the coagulation cascade is activated and a blood clot forms. The function of this clot is to stop bleeding. However, it cannot remain in the vasculature indefinitely and has to be lysed again. The ability of the body to lyse clots can be measured with global fibrinolytic potential (GFP) assays and expressed as lysis time. Increased clot lysis time (CLT) has been shown to be significantly associated with various CVD risk factors and CVD events in Caucasian populations while very little information is available for other ethnicities. In this study we investigated plasma GFP and its relation to CVD risk factors in a large black African population. We also determined the effect of three polymorphisms in the promoter area of the plasminogen activator inhibitor-1 (PAI-1) gene on PAI-1act (activity) levels (a main determinant of CLT) and CLT, together with gene-environment interactions and the effect of urbanisation on these interactions. PARTICIPANTS AND METHODS
Apparently healthy men and women between the ages of 35 and 65 years were recruited to take part in the South African arm of the Prospective Urban and Rural Epidemiology (PURE) study. Approximately 1000 rural and 1000 urban black African individuals participated. Data and samples were collected during a 12-week collection period in 2005 for cross-sectional analysis.
RESULTS - Increased PAI-1act levels, body mass index (BMI), glycosylated haemoglobin (HbA1c), triglycerides, fibrinogen concentration, C-reactive protein, female sex, positive HIV-status and the metabolic syndrome were all associated with prolonged CLTs, while increased habitual alcohol consumption was associated with shorter CLTs. Urban-rural differences for CLT existed in women only. This is likely due to the larger extent of rural-urban differences in other CVD risk factors observed in women compared to what was observed in men. Of the CVD risk factors measured, PAI-1 explained the largest proportion of the variance in CLT (27%). Owing to the important role PAI-1act plays in CLT, we investigated three polymorphisms in the PAI-1 gene promoter area (the 4G/5G polymorphism, the novel SNP C428T and SNP G429A (previously identified)), and the influence of these polymorphisms on PAI-1act levels and CLT. The frequency of the 5G allele was high (0.85) in comparison with previously reported literature. PAI-1act increased significantly across genotypes in the urban (5G/5G: 3.84 U/ml; 4G/5G: 4.85 U/ml; 4G/4G: 5.96 U/ml p=0.009) but not the rural subgroup, while CLT did not differ. We found significant interactions between the 4G/5G polymorphism and BMI, waist circumference and triglycerides in determining PAI-1act, and between the 4G/5G polymorphism and fibrinogen and fibrinogen gamma prime in determining CLT. Direct relationships with PAI-1act or CLT were not found for the C428T and G429A polymorphisms; they did, however, influence associations of other environmental factors with PAI-1act and CLT. Several of these interactions differed significantly between rural and urban subgroups, particularly in individuals harbouring the mutant alleles.
CONCLUSION - CLT associated with many of the same CVD risk factors described in the literature for Caucasian populations, but also with other risk factors. Rural-urban differences in CLT are dependent on the association of CLT with other CVD risk factors in the rural-urban setting. Genetic polymorphisms of the PAI-1 gene did not directly influence CLT, despite influencing PAI-1act. The main contributor to PAI-1act variance, however, was (central) obesity. The effect of the 4G/5G polymorphism on PAI-1act, as well as gene–environment interactions for the C428T and G429A genotypes in determining PAI-1act and CLT, were significantly influenced by urbanisation.
North-West University
2013
Thesis
en
http://hdl.handle.net/10394/9645
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9645/1/De_Lange_Z.pdf
8afa789fdd84a6b9fc2538c14798b6ae
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9645/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9645/3/De_Lange_Z.pdf.txt
652dedb43250932d7beff27209ba8bf2
CVD
PAI-1
fibrinolysis
clot lysis time
polymorphisms
KVS
KLT
fibrinolise
polimorfismes
oai:repository.nwu.ac.za:10394/43362020-09-14T12:36:36Zcom_10394_26463col_10394_26477
Die aanbieding van politiek as nuusonderwerp in Sarie, Rooi Rose en Fair Lady (1994-2005)
Boshoff, Catharina Helena
Fourie, Lynnette
Swanepoel, Thalyta
This dissertation discusses the presentation of politics as news topic in the South African women's
magazines Fair Lady, Rooi Rose and SARIE in selected years from democratisation in 1994 to 2004. The
basic assumption of the study is that the media has the pertinent function to inform and educate society
to effectively partake in a democracy, especially where women's levels of political knowledge are lower
than those of men. Due to the fact that women's magazines are popular reading material amongst
women, it is uniquely positioned to provide political information to them, apart from the fact that they
have not been traditionally prone to do so. It is recommended that the points of departure of the online
evaluation model, schema theory and agenda setting theory be considered in the selection and
presentation of information to contribute to women's political knowledge acquisition. According to the first
mentioned theory most people learn about politics coincidentally as they do not search actively for this
type of information. According to the schema theory all acquired knowledge on a topic is grouped
together and these knowledge structures influence how people receive, process and react to new
information. Agenda setting basically implies that the reader is prone to regard an issue that receives a
relatively high frequency of coverage in the media as more important than one not receiving much
attention. The aspects that are highlighted regarding the specific issue are also viewed as more
important than other aspects.
Against this theoretical background guidelines were created for the presentation of politics in women's
magazines. These departure points were verified against articles in Ms. Magazine, a publication already
covering politics. The guidelines served as basis for a qualitative content analysis of political news items
in Fair Lady, Rooi Rose and SARIE. The results show that Fair Lady has a high level of political coverage
while Rooi Rose and SARIE have considerably less. The publications already implement most of the
guidelines to a degree. However, in an effort to attract and keep readers' attention to political news
items more, some guidelines could be utilised more consciously.
In closing it is argued that the publications should take care to provide the reader with what they want to
ensure economic survival, but that the socially responsible editorial team member may make use of the
guidelines set out in this study. In doing this, the publications can fulfill their functions as informational
and educational mediums without alienating the entertainment seekers.
North-West University
2009
Thesis
http://hdl.handle.net/10394/4336
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4336/1/boshoff_ch.pdf
ae6283d19a74b3b807ccae3d3167fa61
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4336/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4336/3/boshoff_ch.pdf.txt
f9772ed9c69f35a3eefab1464846a90e
Developing democracy
Women
Political knowledge
Women's magazines
Media functions
Schema theory
Online evaluation model
Agenda setting
oai:repository.nwu.ac.za:10394/311252020-12-01T11:39:35Zcom_10394_26463col_10394_26476
Exploring educators' experiences regarding empathy within inclusive classrooms
De Klerk, M.
De Klerk, W., Dr.
In South Africa, educators can be seen as the pillars of the education system. Moreover, educators play a vital role in the inclusive educational system, where their skills, views and character traits influence the classroom atmosphere. Empathy as an educational trait can be seen as a core element in inclusive education, where all learners, with and without disabilities, are provided with an equal opportunity to receive basic education. Although many studies have focused on empathy, there is still a need to explore empathy within an inclusive educational setting, specifically, educators" experiences regarding their own empathy. In the South African context, there is little qualitative research focussing on this topic. Yet it is believed to be important that educators develop empathic skills in order to accommodate all learners, with and without disabilities, in their classrooms. For the purpose of this qualitative study with a phenomenological research design, a purposive sampling method was used to obtain the participants" experience regarding their own empathy. All the participants were female educators in three schools within the Dr Kenneth Kaunda District in the North West Province between the ages of 30 and 59. The final sample for this study consisted of seven participants. Data was obtained through demographic questionnaires and in-depth interviews. Thematic analysis was used to identify themes for this study. Important themes that were identified include: intrapersonal proficiency of educators by having certain character traits and fulfilling a power role, but also feeling a decrease in their self-confidence; interpersonal understanding for learners with disabilities by earning their trust and motivating them; having adaptive teaching skills, including the ability to differentiate between their learners" different needs and having a creative teaching approach; and situational aspects that play a role in the empathic experiences of educators, such as facilities and support, time constraints, lack of learner discipline, parental influence, household issues influencing educators" empathy, empathy being influenced through educational experience, and empathy being influenced after educators have become mothers. This study serves as one of first conducted to explore educators" own empathic experiences within their inclusive classrooms. Thus, this study acts as a basis for future research studies. It identified the importance of empathy within inclusive classrooms, as well as the situations that influence empathy. Additionally, in the development of future programs designed to provide empathic skills training for educators, the findings of this study must be taken into consideration. This study revealed the essential role of empathy in the classroom, which enables the educator to acknowledge each learner and provide appropriate education according to each learner"s need.
North-West University
2018
Thesis
en
https://orcid.org/0000-0002-0667-3244
http://hdl.handle.net/10394/31125
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/31125/1/DeKlerkM.pdf
2d40e2132d5bce99adc4782327da335b
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/31125/2/DeKlerkM.pdf.txt
2907b9d6a4966f43b19d7402b4cb1ac4
Disabilities
inclusive education
full-service schools
educators
empathy
qualitative research
oai:repository.nwu.ac.za:10394/93312019-01-16T14:06:51Zcom_10394_26463col_10394_26474
I.K. as voorspeller van akademiese prestasie
Mouton, Jan Frederik
Monteith, J.L. de K.
The aim of the research project is firstly to determine the variables that have an influence on academic achievement and
secondly to determine the specific influence of intelligence on academic achievement.
To achieve this aim a literature study was undertaken, followed by an empirical investigation. It emerged from the first literature chapter (see chapter 2) that intelligence is such a complex construct that it can be studied from different angles. Because the psychometric, developmental and information processing theories of
intelligence proved to be the most influential ones, these were specifically studied. Despite the differences between these approaches to intelligence they also proved to have much in common. They agree for example that reasoning is a fundamental aspect of
intelligence and it seems possible to identify a general intelligence factor within any of the three approaches (see chapter 2). In the second literature study chapter (see chapter 3) it was clear that academic achievement is influenced by variables that can be categorised as cognitive, non-cognitive and milieu related. The cognitive variables proved to be the most influential, with
intelligence (a cognitive variable) as the single best traditional predictor of academic achievement. The empirical investigation made use of data gathered in five primary schools in Rustenburg during 1988 (see chapter 4). All the standard five pupils who received education through the medium of
Afrikaans formed the population of the research program. Different measuring instruments of which the "Nuwe Suid-Afrikaanse groeptoets" (NSAGT) as the single most important measuring instrument were used on a sample (see chapter four). A variety of independent variables that influence academic achievement were identified. The SAS-computer and BMDP-computer programs were used to process the information. The different statistical techniques are described in paragraph 4.8. A factor analysis was carried out to group the
different control variables according to their correlation coefficients with the standard five average results as well as results in Afrikaans and Mathematics respectively (see table 5.1).
The independent variables were grouped into six different factors. A predictor variable was identified within every factor and grouped with intelligence (see table 5.2) to determine the contribution to R2 in each of the dependent variables, namely average
percentages, Afrikaans and Mathematics. Because sex variables proved to be a significant statistical predictor variable in both Afrikaans and average percentage, the sample was divided into boys and girls and the multiple regression analysis was rerun (see tables 5.3 and 5.4). Intelligence was finally divided into verbal and non-verbal intelligence and the multiple regression program was run again on the sample boys and girls (see tables 5.5, 5.6 and 5.7). The results of the empirical research can be summarised as follows: (1) Academic achievement is influenced by a large number of different variables of which aptitude and phlegmatic proved to be the most influential ones. (2) The influence of intelligence on academic achievement proved to be of no significance when the sexes are studied together. When the sexes are separated intelligence proved to be an academic
predictor on average percentage and Afrikaans for boys but not for girls.
Potchefstroom University for Christian Higher Education
1990
Thesis
other
http://hdl.handle.net/10394/9331
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9331/1/Mouton_JF.pdf
ac46c4edca6fb30d217e07b80edd4757
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9331/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9331/3/Mouton_JF.pdf.txt
afdf115674fab1bf8fca22bd21a78829
oai:repository.nwu.ac.za:10394/122662020-11-19T09:25:52Zcom_10394_26463col_10394_26478
Mathematical modelling of blood spatter with optimization and other numerical methods
Van der Walt, Anetta
Gertenbach, J.D.
Uys, P.E.
23308052 - Gertenbach, Jan Diedeleff (Supervisor)
The current methods used by forensic experts to analyse blood spatter neglects
the influence of gravitation and drag on the trajectory of the droplet. This research attempts to suggest a more accurate method to determine the trajectory of a blood droplet using multi-target tracking. The multi-target tracking problem can be rewritten as a linear programming problem and solved by means of optimization and numerical methods. A literature survey is presented on relevant articles on blood spatter analysis and multi-target tracking. In contrast to a more advanced approach that
assumes a background in probability, mathematical modelling and forensic science, this dissertation aims to give a comprehensive mathematical exposition
of particle tracking. The tracking of multi-targets, through multi-target tracking, is investigated. The dynamic programming methods to solve the multi-target tracking are coded in the MATLAB programming language. Results are obtained for different scenarios and option inputs. Research
strategies include studying documents, articles, journal entries and books.
2014
Thesis
en
http://hdl.handle.net/10394/12266
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/1/Van_der_Walt_A_TOC.pdf
21568030c7a5c5c3af56a266e8803eda
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/2/Van_der_Walt_A_Chapter_1.pdf
41829db73e3ed075d968df9862ef7802
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/3/Van_der_Walt_A_Chapter_2.pdf
74d9aedd6d1c63f677fd26b7fccf2ff7
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/4/Van_der_Walt_A_Chapter_3.pdf
fd340c6466048959c899b1cf0b695d9c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/5/Van_der_Walt_A_Chapter_4.pdf
42d036395aeccbf1db4227dd90204a9a
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/6/Van_der_Walt_A_Chapter_5.pdf
3df13106f307def19e39ec4d2fef3e68
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/7/Van_der_Walt_A_Chapter_6.pdf
4dedda326a0f76c572f4975f951e4e4e
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/8/Van_der_Walt_A_Chapter_7.pdf
205bc19774cb18e802f35e36791a90c3
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/9/Van_der_Walt_A_Appendix%26Bibliography.pdf
f673b3645d72de0c6e738968b63d8403
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/10/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/11/Van_der_Walt_A_TOC.pdf.txt
1346901515bcd074b9ca264dfb4f53e4
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/12/Van_der_Walt_A_Chapter_1.pdf.txt
42b38d7bc915d79654eb6abf1f505501
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/13/Van_der_Walt_A_Chapter_2.pdf.txt
357d355fd4f4a75653f20b6f9493bbbf
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/14/Van_der_Walt_A_Chapter_3.pdf.txt
b366080b80df2a0b7fa586ea8cabecee
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/15/Van_der_Walt_A_Chapter_4.pdf.txt
76315d9cc2eaf1646a7986d25b80ec3e
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/16/Van_der_Walt_A_Chapter_5.pdf.txt
3a5dcfd7ff8b330c5b3c8bd1afffd3db
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/17/Van_der_Walt_A_Chapter_6.pdf.txt
7a546540cec90a5241a94ef4cbd3616f
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/18/Van_der_Walt_A_Chapter_7.pdf.txt
43c0cdaa555bf184a17a3b7b9e7a2fcc
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12266/19/Van_der_Walt_A_Appendix%26Bibliography.pdf.txt
6f2980204c5cf3e63e2b55473a758d1b
Bloodstain analysis
Fluid mechanics
Multi-target tracking
Linear programming
Dynamic programming
K-shortest path algorithms
oai:repository.nwu.ac.za:10394/409072023-04-26T01:06:11Zcom_10394_26463col_10394_26477
Die Suid-Afrikaanse Republiek in die Britse buitelandse en koloniale beleid, 1881-1899
Van der Walt, Hendrik Roelof
Krüger, D.W.
"No abstract"
North-West University (South Africa)
1961
Thesis
other
http://hdl.handle.net/10394/40907
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40907/1/Van%20der%20Walt_H.R..pdf
29fde0a814f1c1b6fa92fe824dc25ee7
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40907/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40907/3/Van%20der%20Walt_H.R..pdf.txt
c72e883e72445e23388ac0bdcbfffd42
oai:repository.nwu.ac.za:123456789/406432023-03-04T01:04:28Zcom_10394_26463col_10394_26473
Die betroubaarheid en geldigheid van 'n assertiwiteitsvraelys vir toesighouers in die goudmynbedryf
De Bruyn, Francois Jacob
Theron, N.
Assertiveness training forms an important component of training in the gold mining industry,
because it affects productivity as well as the nature of interpersonal relationships. Assertion
involves standing up for personal rights and expressing thoughts, feelings and beliefs in direct,
honest, and appropriate ways which do not violate another person's rights. Surveys have
indicated that supervisors at the Vaal River Gold Mine have limited skills of assertiveness. This
deficiency raises problems in interpersonal relationships in the work situation and has a negative
effect on productivity. A reliable and valid questionnaire to determine the assertiveness of the
Vaal River Gold Mine Supervisors is therefore a necessity. The general aim of this research was
to investigate the reliability and validity of an assertiveness questionnaire at the Vaal River Gold
Mine. The research hypotheses were tested by using a survey design as well as an experimental
design. Two research groups were used for the research. The research groups were comprised of
supervisors of the Vaal River Gold Mine. The first group was exposed to the survey design with
the following Paterson job gradings: 201 supervisors of the B5; B6/7 grading; 69 supervisors
of the C1, C2 and C3 grading; 129 supervisors of the C4/5 grading; and finally 23 supervisors
of the D1/2 grading. The second group consisted of 62 supervisors selected at random from a
group of 126 supervisors that were targeted for assertiveness training.
The measurmg instruments applicable to this research were the Vaal River Gold Mine
assertiveness questionnaire, the Rathus Assertiveness Schedule (RAS) and the Sixteen
Personality Factor Questionnaire (16 PF).
The results of the empirical survey indicated that the questionnaire currently being used were not
reliable and valid and did not satisfy the requirements of the evaluation of supervisors at the Vaal
River Gold Mine. The questionnaire was statistically analysed, and an improved questionnaire
was statistically processed.
North-West University (South Africa)
2000
Thesis
other
http://hdl.handle.net/123456789/40643
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40643/1/De%20Bruyn_F.J..pdf
8ede475afeb21674173b697512691f16
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40643/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40643/3/De%20Bruyn_F.J..pdf.txt
26b2087fb3b1e50d47b73c313709b200
Assertiveness
Aggressiveness
Non-assertiveness
Assertiveness questionnaire
Validity
Reliability
Paradigm
oai:repository.nwu.ac.za:123456789/403832023-02-18T01:19:48Zcom_10394_26463col_10394_26473
Small, micro, medium enterprise and black economic empowerment in the construction industry : a case study of Gauteng provincial housing department, south Africa
Sisi, Molebedi Gordon
Migiro, S.O.
Purpose - The study explores the practices in the implementation of Black
Economic Empowerment (BEE) interventions in the construction industry and the
problems facing SMMEs in the industry
Design and Method- a cross-sectional exploratory research design was used in
the study. The approach was used to gain insight into the problem under
investigation, and because the research question lacked established research
findings. Besides, the exploration was necessary because of a need to obtain the
contractors' and project manager's perception pertaining to service delivery in the
Department. Further, the approach was chosen since it was found to be efficient
and a tested means of assessing information about large populations, especially
in instances where individual perceptions as for the current investigation were
sought. Besides, the variables we were interested in have not been studied
before, either independently, or with other variables, so that there is sufficient
information to ask a question about the relationship between them. Therefore,
the design did not dictate how the variables were to be measured in testing their
relationship .
A survey method was used to collect the data in which a carefully planned
questionnaire was designed and distributed for completion by the respondents.
The respondents were randomly drawn from the following four main regions
under the Department of Housing: Ekurhuleni Metropolitan Municipality,
Tshwane/Metsweding, Westrand/Sedibeng and Johannesburg. In order to
ascertain the reliability of the research instrument, a pilot study was conducted as
a pre-test of the instrument.
Findings -Empirical results revealed that government interventions in the
promotion of black SMMEs have assisted in creating employment and income
redistribution with in society. However, there is inadequate commitment to service
quality by contractors (inadequate task standardisation), and some of the
contractors do not know what quality manuals are and therefore do not have
quality manuals to ensure standardisation.
Recommendations - Based on the findings , we recommend that SMME
contractors and their employees must have relevant technical skills. They must
also have and adhere to quality assurance manuals. It is further recommended
that SMME contractors that do not comply with quality assurance nor committed
to the provision of the service(s) tendered for should be strike off of the service
provider's data base. Nonetheless, further research is required to assess the
impact of accidental service providers and quality assurance in the Department
of Housing's construction industry.
North-West University (South Africa)
2009
Thesis
en
http://hdl.handle.net/123456789/40383
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40383/1/Sisi_Molebedi%20Gordon.pdf
aaeab44c7ff5a12820907ae95d70b58a
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40383/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40383/3/Sisi_Molebedi%20Gordon.pdf.txt
dde187ce99ca71bcf916a35894cf99e8
oai:repository.nwu.ac.za:10394/408792023-04-26T01:03:46Zcom_10394_26463col_10394_26474
Die ouer se plek en taak in die opvoeding en onderwys soos geïmplementeer in 'n tipies voorstedelike primêre skool in Transvaal
Schutte, B.C.
Scholtz, Izak Petrus
Nobody can take the place of the parent as the principal educator.
The school has always acted as supplementary educator of the child
during school hours.
Because the state has given more and more to the parent inter alia the
establishment of free tuition, many parents have been taking it for granted
that the school alone is responsible for the education of their children.
This is substantiated by the poor parent participation in the election of
members for school committees and school boards, as well as the poor support
of parent-teachers association meetings and gatherings of a cultural nature
at schools.
In addition to all its divergent responsibilities the school has now
also partially taken over the parent's educational task of his child.
The school is, however, not equal to this task because inter alia
teacher training does not adequately equip students for their vocation.
The school should. nevertheless be in the best position in due course
to make parents realise that they can never effectively be replaced as
principal educators. They must also realise that ample opportunities
exist in Transvaal where parents can partake in full in the education and
tuition of their children.
By means of purposeful guidance parents will do their duty. This
research has proved clearly that after continuous guidance had been
given, parents have shown more interest in the election of members of the
school committee and the parent-teachers association. Not only did more
parents attend meetings of a cultural nature at the school, but they also
showed more interest in book displays and parent-teacher conferences. There
was also more significance in their coaching of different games and in the
entertainment of visiting teams. In addition, assistance was given in
the library, many teaching aids were made for teachers and parents assumed their rightful responsibility with regard to the collection of
funds.
However, education an a national scale, is necessary. Apart from
the school, the state, the church and cultural bodies must co-operate
and co-ordinate their efforts in this respect.
North-West University (South Africa).
1973
Thesis
other
http://hdl.handle.net/10394/40879
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40879/1/Scholtz_I.P..pdf
0a1ddd0cd0bf249c2cb294965bee4af6
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40879/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40879/3/Scholtz_I.P..pdf.txt
ce025a39f1dcc68f192a3063bb62833c
oai:repository.nwu.ac.za:123456789/404492023-02-18T01:16:59Zcom_10394_26463col_10394_26477
The role of indigenous healing and medicinal practice in promoting health care delivery service in the Bojanala West Region : the case of Saulspoort Village
Letsholo, Mpobe Richard
Kaya, H.O.
This study was about establishing the role played by Indigenous Healing and
Medicinal Practices in the village of Saulpsoort (Moruleng), in the Bojanala
West Region, North West Province in South Africa. The ultimate intention was
to find proper ways, based on research evidence, of making the African Art of
Healing and Medicines more accessible and acceptable for use by all in the
region.
The successful implementation of this move would ensure that the African
Healing Traditions are not only officially recognised by current government
systems , but also no longer seen as alternative Medicinal Practices next to
western orthodox traditions.
On completion of the investigation, the following critical findings were made:
■ That the overwhelming majority of the residents of the Bojanala West
region still support, use and almost entirely depend on Traditional
Healing Practices for their health care needs;
• That the practices followed and applied by Traditional healers are
authentic and capable of curing a vast variety of diseases some of
which are not known by western medicinal practioners.
Ultimately, the following recommendations were also made:
o Traditional Healing Practices should be looked at independent of
other Healing practices for them to be properly realised as authentic,
effective and reliable to use for curing diseases without any danger;
o All practising Traditional healers should be properly registered with a
body that is officially recognised and legally empowered by the ·
government;
o All useful Traditional Medicines should be registered and licensed.
North-West University (South Africa)
2006
Thesis
en
http://hdl.handle.net/123456789/40449
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40449/1/Letsholo_Mpobe%20Richard.pdf
7c5b8b1d44afef4b3b1e98e87d38943c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40449/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40449/3/Letsholo_Mpobe%20Richard.pdf.txt
73b04dce308de751d44e23ce5426e60b
oai:repository.nwu.ac.za:123456789/408352023-04-12T01:04:24Zcom_10394_26463col_10394_26478
African indigenous sayings in childrearing and social cohesion in Dinokana and Motswedi villages, North West Province
Mokoma, Seanokeng Alina
Koitsiwe, M.T.
Studies have shown that today’s parenting inclination has curved towards western ways, urban centres being the focal point, preferred over indigenous ways that boasted the cushions of extended families, which laid sound foundation of morality. The purpose of this study was to investigate whether today’s parents still use the Indigenous Sayings (IS) and accord it its value and role in childrearing and social cohesion, as were used by our forebears since the declining morality of today’s children, consumed by western cultural value commodities, is of great concern to society. Are strategies used by our forebears in building and shaping a child’s moral compass to achieve and adhere to societal behavioural expectation in use? The study focused and amplified its context on storytelling, proverbs, songs and idioms. Motswedi and Dinokana were chosen as study sites for their cultural disposition resonating with the research. The two villages are predominantly rural and still live under the guardianship of a chief who is looked upon as the custodian of culture. The study design catered for the indigenous language of the participants and their cultural inclination through interviews. The study found that IS are known, their value revered but rarely used as a strategy in raising children despite their pedagogical value. The most significant reason being the replacement of oral tradition by new technology. Furthermore, the power and authority of the chiefs has greatly diminished in that the kgotla takes no part in the upbringing of its subjects as well as promotion of communal heritage. The study answers the question regarding the employ of Indigenous Sayings in childrearing and social cohesion. Further research is needed to establish how technology can be used to hone back the use of oral tradition, especially on the home front.
North-West University (South Africa)
2022
Thesis
en
https://orcid.org/0000-0003-0781-1618
http://hdl.handle.net/123456789/40835
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40835/1/Mokoma%20SA.pdf
fa5a806d9e540a70c8072efc530f0a1a
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40835/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40835/3/Mokoma%20SA.pdf.txt
ba6e07c11f8a0f36ce704cc09c900775
Indigenous Sayings
Childrearing
Social cohesion
Extended family
oai:repository.nwu.ac.za:10394/155742020-08-24T12:15:57Zcom_10394_26463col_10394_26473
South Africa's economic policies on unemployment : a historical analysis of two decades of transition
Steenkamp, Lorainne
Rossouw, R.
After twenty years of democracy, the most pressing problem facing South Africa is the absence of sustainable economic growth and job creation. Since 1994, major economic reforms and adjustments have been made, which were seen as a requirement for achieving economic growth and development. However, despite these efforts, unemployment in South Africa remains a challenging problem. The main objectives of the study are, firstly, to examine South Africa’s economic policy initiatives implemented since 1994. Secondly, to determine whether the issue of unemployment has improved under a review of the economic policies that have been implemented since 1994. Finally, this is achieved by examining the changes in employment and, more specifically, the changes in the cost-neutral change in the capital/labour (K/L) ratio between 1995 and 2013 by means of a historical Computable General Equilibrium (CGE) modelling approach.
The literature study focuses on employment, growth and human capital theories to reflect on the present state of knowledge and to contribute to evidence-based policy debates. It also provides an overview of South Africa’s economic policy, programmes and strategy decisions and of the country’s economic stance since the transition to democracy in 1994, with a specific focus on the labour market. Historical CGE modelling, applied using the PEKGEM – a dynamic CGE model of the South African economy, was chosen to examine the relationship between growth and structural changes under the different economic and development policies in South Africa between 1995 and 2013. The primary aim was to determine how the dynamics and structure of South African employment changed during the period in which these policies were implemented, using the historical CGE modelling approach. The focus was primarily on changes in the capital and labour markets across all sectors over this period. The results indicate an increase in capital relative to labour (K/L) over the period 1995 to 2013, despite the increase seen in the rental price of capital relative to wages (PK/PL). To better understand the structural shift, the theoretical specification of the capital/labour preference within PEKGEM was considered. The results suggests that at any given ratio of real wages relative to the rental price of capital, industries would choose a K/L ratio 8.1 per cent higher in 2013 than it would have in 1995. Considering the fact that South Africa has a comparative advantage in unskilled labour-intensive goods, especially given the country’s abundance of labour and high levels of unemployment, the shortcomings of South Africa’s economic policies in addressing the pressing issue of unemployment is emphasised.
2015
Thesis
en
http://hdl.handle.net/10394/15574
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15574/1/Steenkamp_L_2015.pdf
5a16082c68f4a15dadb253f456ad5f7a
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15574/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/15574/5/Steenkamp_L_2015.pdf.txt
cc29f64bec2ad36b226de41d5e012035
Economic policy
South Africa
Unemployment
CGE modelling
Capital-labour ratio
oai:repository.nwu.ac.za:10394/392072023-07-26T01:07:56Zcom_10394_26463col_10394_26473
Social well-being in a utility organisation : the role of trust and job security
Hennicks, Eugény C.
Heyns, M.M.
The term “well-being” is often misconstrued and is mainly associated with physical, emotional, and psychological well-being. However, humans are fundamentally social beings and have a deep need to form strong social bonds. Social well-being is a means of seeking positive social life and mimics relations developed with others in community, family, or workplace settings. However, it is the least considered as an element of importance despite including a significant part of overall well-being. As a result, individual and organisational outcomes might be affected.
Social connectedness and well-being are known to benefit health and employee performance factors. However, in today’s uncertain times, numerous challenges have eroded social well-being. Despite living in a technologically advanced world that allows more convenient and immediate connections, it is associated with more social withdrawal. These symptoms stem from retrenchment, corruption, and poor leadership, all of which have harmful effects on a utility industry that forms the backbone of the South African economy and threaten the longevity of the organisation, employee relations, and performance. Organisations should, thus, have a vested interest in creating socially sound workspaces, as such workplaces have a significant impact on organisational longevity and promote greater employee satisfaction. Social well-being affects worker well-being relating to job satisfaction, organisational citizenship behaviour, and intention to leave. The absence of social relations hinders the development of trust, an aspect that underpins collaborative initiative. For trust to be durable, social well-being needs to be ensured.
This study aimed to investigate the under-researched topic of social well-being and how it related to subjective job insecurity and trust as well as the outcomes in terms of job satisfaction, organisational citizenship behaviour, and intention to leave of employees in the utility industry. A cross-sectional survey design was used in the three manuscripts. The sample (n = 403)
included all permanently employed employees across various designations in the utility industry. The following measures were used: a biographical questionnaire, the Social Well-being Scale, the Multidimensional Qualitative Job Insecurity Scale, the Workplace Trust Survey, the Job Satisfaction Scale, the Organisational Citizenship Behaviour Scale, and the Turnover Intention Scale. Latent variable modelling was utilised to conduct variable- and person-centred analyses. Variable-centred analyses were used to test measurement and structural models of social well-being, trust, and intention to leave. Latent profile analysis was used to explore social well-being profiles, and their associations with job satisfaction, and intention to leave were investigated.
Article 1 investigated the associations between social well-being, organisational and colleague trust, and precarity. Both forms of trust – both in the organisation and in colleagues – predicted higher levels of social well-being among the participants, with trust in the organisation having the most noticeable impact. Results further showed that higher levels of subjectively perceived job insecurity led to decreased social well-being levels. Trust in the organisation and colleagues served as an underlying mechanism that influenced the inverse relationship between perceived job insecurity and social well-being. Organisations could, therefore, promote social well-being by being trustworthy and transparent. This study concluded that the centrality of trust was needed to develop quality social relations, as it was firmly anchored in one of the five social well-being constructs. Therefore, organisations should seek to enhance social connections, which would ultimately increase trust levels that would benefit both employer and employee.
Article 2 aimed to investigate the associations between social well-being, job satisfaction, organisational citizenship behaviour, and intention to leave in a South African utility organisation. The results showed that social well-being was positively associated with job satisfaction and organisational citizenship behaviour and negatively associated with intention to leave. Social well-being indirectly affected organisational citizenship behaviour through job satisfaction and intention to leave through job (dis)satisfaction. This study illuminated social well-being associations with job satisfaction, organisational citizenship behaviour, and intention to leave in a developing African country workplace context.
Article 3 used a person-centred approach to distinguish between sub-populations of employees using indicators of social well-being. Three distinct profiles were identified, namely socially well, socially withdrawn, and superficially socially well. The Social Well-being Scale,
Workplace Trust Survey, Job Satisfaction Scale and Turnover Intention Scale were administered. Three types of social well-being were found: socially well, socially withdrawn, and superficially socially well. The first two profiles demonstrated either high or low scores on five dimensions of social well-being (contribution, integration, acceptance, actualisation, and coherence). The superficially socially well profile showed above-average social contribution and integration, but below-average social acceptance, actualisation, and coherence were evident. The socially well profile was associated with trust in managers and colleagues, job satisfaction and low intention to leave. The opposite patterns were found for the socially withdrawn profile. The study showed that young employees and those with more service years were more evident in the socially withdrawn profile than the superficially social well profile. Younger employees in the socially withdrawn profile (compared to the superficially socially well profile) were also more inclined to experience lower job satisfaction and had higher intentions to leave. This research is the first to record which social well-being profiles are the most prominent and how diverse profiles relate to trust, job satisfaction, intention to leave and demographic differences.
Recommendations for future research are made.
North-West University (South Africa)
2022
Thesis
en
https://orcid.org/0000-0002-0849-0505
http://hdl.handle.net/10394/39207
https://repository.nwu.ac.za/bitstream/10394/39207/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/39207/3/12897566%20Hennicks%20EC.pdf.txt
2b1b872aabeb823f63a8d87342eeb931
https://repository.nwu.ac.za/bitstream/10394/39207/6/Hennicks_EC.pdf.txt
27c3e64a6a5e3e6a9fa0cba00c0a88d5
https://repository.nwu.ac.za/bitstream/10394/39207/5/Hennicks_EC.pdf
853bbc3b863d23fda9a6cbfaf377c0ae
Social well-being
Trust
Job security
Flourishing
Job satisfaction
Organisational citizenship behaviour
Turnover intention
Latent profile analysis
oai:repository.nwu.ac.za:123456789/407642023-03-16T01:04:47Zcom_10394_26463col_10394_26479
Bybelse berading aan die persoon geaffekteer deur MIV/VIGS
Minnie, Francois Gysbertus
Lotter, G.A.
Van Dyk, A.C.
HIV/AIDS is a pandemic which influences each and everyone worldwide as well
as in South Africa, the country with the largest number of people living with
HIV/AIDS. The impact of HIV/AIDS on the social, economical and micro level is
tremendous. The effect of HIV/AIDS on individual households is immediate, and
poverty, sickness, stress, death and loneliness contribute to the devastation of
this phenomenon.
The Biblical counsellor must be equipped with the necessary knowledge to guide
and support the person affected by HIV/AIDS. The counselee must be
empowered to handle his specific crisis significantly.
Perspectives bases on the Scripture suggest how the Christian believer must
manage sickness, suffering and death. The Scripture guide the Christian in times
of suffering and conflict to persevere in the hope that God will give deliverance.
According to the Scripture the Biblical counsellor, as a called shepherd, must
admonish, educate, support and guide the counselee to accept the ministry of
reconciliation, given to him by God through Christ his Son.
The counselee affected by HIV/AIDS must be empowered by the necessary
knowledge in order to care and support the HIV/AIDS patient and be able to
digest and cope with his own pain and stress.
AIDS is caused by the HI virus, which directly attacks the most defensive cells in
the human immune system. Opportunistic diseases begin to appear as the
immune system continues to deteriorate until the death of the patient. At present
there is no remedy for AIDS, only antiretroviral medicine to prolong the progress
of the HI virus. The rapid spread of the HI virus can be attributed to migration and
urbanization, poverty, conflict, infrastructure, patrimonium, matrimonial rights,
sexual illiteracy, drug abuse and a certain youth culture.
Prevention of HIV/AIDS can only be successful if the people are empowered with
knowledge concerning HIV, change their promiscuous behaviour and practice
safer sex.
Biblical counselling of the person affected by HIV/AIDS is carried out by a trained
counsellor, a called servant of God, using Scripturally founded pastoral skills in
counselling. During the counselling process the Biblical counsellor creates a
pastoral relationship, he is ready to listen, uses the Word of God as the source of
knowledge in the counselling process and striving to bring change by means of
prayer. The aim is to lead the counselee towards growth in belief in God in order
to solve his problems through faith.
A counselling model, namely the Theos-guided model, can be used by Biblical
counsellors in order to counsel persons affected by HIV/AIDS. The phases in this
model, namely the building of a relationship, interpreting data, conference,
Godward focus, providing instructions and support. Five central pastoral themes
were used as foundation for practical theoretical guidelines in this model, namely
pastoral principle, the pastor as counsellor, spirituality, a couselling model for
pastoral practice, the use of the Scripture and prayer.
North-West University (South-Africa)
2003
Thesis
other
http://hdl.handle.net/123456789/40764
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40764/1/Minnie_F.G..pdf
1b5c2c5f165a2f0f52f40818331ee5d6
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40764/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40764/3/Minnie_F.G..pdf.txt
4a50f07cba41ec5a7c585348419543df
oai:repository.nwu.ac.za:10394/409052023-04-26T01:05:58Zcom_10394_26463col_10394_26477
Die staatsbeheerde korporasies vir ekonomiese ontwikkeling in Suid-Afrika : staatshulp aan die ekonomiese lewe met spesiale verwysing na die gebruik van semi-staatinstellinge, 1902-1965
Van der Walt, Charl Pretorius
Du Plessis, L.J.
"No abstract"
North-West University (South Africa)
1964
Thesis
other
http://hdl.handle.net/10394/40905
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40905/1/Van%20der%20Walt_C.P...pdf
692b8edbee3966dbf7bdb4520a48397c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40905/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40905/3/Van%20der%20Walt_C.P...pdf.txt
e82f492875792c97820c03b3dc69af94
oai:repository.nwu.ac.za:10394/36992018-03-05T05:50:08Zcom_10394_26463col_10394_26475
A process model for the development of airborne electronic equipment
Viljoen, Daniël Albertus
Viljoen, D.A.
Holm, J.E.W. (Johann)
Developments in systems engineering concepts and in the regulatory environment necessitated improvements to the processes used by Denel Aviation for the development of electronic equipment and software for use on board aircraft. A project was undertaken to improve the existing systems and software development processes. Shortcomings in the existing development processes used by the organisation were identified. A set of process requirements was determined, referring to general characteristics of airborne electronic equipment and to regulatory standards. A process model, the Airborne Electronic System Development Process (AESDP) to be used by Denel Aviation, was developed. This proposed process model was designed to support incremental and iterative development. The process employs a strict requirements based development methodology in accordance with the standards and recommended best practises. Important aspects of the proposed model include the following: (i) verification of requirement implementation commences in the definition stages of the project and (ii) a parallel (in time) bread boarding process is used to validate requirements and test implementation strategies and trade-offs - this is done without using the rigorous configuration management and other control process applicable to the life cycle data of the item under development. The process model represents hierarchical development, i.e. system (or product), software and hardware layers. The organisational context of the model was delineated, project stages and decision gates were identified and different development “threads” and associated activities were described. Requirements for detailed methods and procedures associated with theses activities were identified. The process model that resulted from this work, was approved by Denel and SAAB and is currently being applied to manage the upgrade of the Oryx helicopter fleet of the South African air force.
North-West University
2008
Thesis
en
http://hdl.handle.net/10394/3699
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/3699/1/viljoen_DA.pdf
21fcbd642c90bc9993e0fd3696260c06
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/3699/2/license.txt
e699d1334b0ca722097db911ac0337ff
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/3699/3/viljoen_DA.pdf.txt
1ef07fb0042bd78315ec5e2d79ed21db
oai:repository.nwu.ac.za:10394/106612020-08-19T13:32:53Zcom_10394_26463col_10394_26473
Bestuurders in 'n vervaardigingsonderneming se belewing van loopbaansukses
Smit, Shantèl
Linde, L.H.
The purpose of this research is to determine how managers in a manufacturing business
experience career success. Phenomenological interviews were used as qualitative research design. A research group of 15 managers were included. It was found that the traditional definition of success has not kept pace with the changing world of work and that managers need to adapt accordingly. One of the proposed changes is that individuals should determine and define career success for themselves. An important aspect of career success is that an individual experiences career success holistically in which his or her different roles, such as that of spouse, parent and employee, are integrated. Various recommendations are offered to the organisation where the research was conducted for them to ensure improved career success among their managers.
2002
Thesis
other
http://hdl.handle.net/10394/10661
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10661/1/Smit_S.pdf
6d9a7eea452e2b40986a4ec25e686674
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10661/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10661/5/Smit_S.pdf.txt
6197cc48aa8ab160ee829051ec284f8f
oai:repository.nwu.ac.za:10394/399822022-10-21T15:31:21Zcom_10394_26463col_10394_26478
Development of a duoplasmatron ion source at the Ithemba laboratory for accelerator based science (ithemba labs)
Mokoduwe, Peter Setsipane
Conradie, J.L.
De Villiers, J.G.
A cold hollow cathode duoplasmatron ion source has been designed, built, optimized and
evaluated for use as an external stand-by ion source for the second injector cyclotron
(SPC2) during those times that the light-ion injector cyclotron (SPCl) is out of operation
and not available for neutron-therapy and the production of radioisotopes, as well as for
the Van de Graaff accelerator. In comparison with more elaborate sources a cold cathode
source is compact, of small mass, uncomplicated in terms of its construction and easy to
operate. It was therefore important to verify whether this type of source can be used for
the present application, for which proton beams with intensities of more than 200 μA are
required, before the construction of more complex sources should be endeavored.
Since it is difficult to predict the behavior of ion sources by calculation alone, it was
considered imperative to build a duoplasmatron source in order to evaluate it
experimentally, and at the same time to study the physical processes which occurs in ion
sources theoretically, in order to enhance our understanding of the observed source
behaviour. The computer program OPERA-3d was used for numerical field calculations
and a detailed study of the influence of different operating parameters on the extracted
beam current was done to determine the optimum operating conditions of the
duoplasmatron ion source. The results lead to a conclusion that more complex and
elaborate ion source designs should be considered, because a cold hollow cathode
duoplasmatron ion source does not satisfy the beam intensity requirements of neutrontherapy
and production of radioisotopes at iThemba LABS.
North-West University (South Africa)
2002
Thesis
en
http://hdl.handle.net/10394/39982
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/39982/1/Mokoduwe_Peter%20Setsipane.pdf
bfa80f4ec32457870aed84730109cbd1
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/39982/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/39982/3/Mokoduwe_Peter%20Setsipane.pdf.txt
d0984f51a64f239c99b992d8e97c0d02
oai:repository.nwu.ac.za:10394/84792018-03-12T06:44:58Zcom_10394_26463col_10394_26476
Landdroste en staatsaanklaers se spesifieke kennisbasis van die kind as getuie in die hof : 'n maatskaplikewekondersoek
Cilliers, Marinda
The sexual abuse of children is becoming an increased tendency in South Africa. Sexual abuse of children is therefore one of the most difficult issues to prove in a court of law because there are usually only two witnesses: the child and the alleged offender. The child’s testimony is the most important and most often the only evidence of a crime that has been committed.
The overwhelming result of sexual abuse in children is the experience of loss and powerlessness. The judicial process can aggravate the child’s feeling of loss and helplessness or be part of the healing process by empowering his/her self-esteem. The trial allows the child the opportunity to experience that justice had been served, but this can only happen when the child has been supported during the court procedure and treated with respect and dignity.
Public prosecutors are the people who represent the complainant’s case in court on behalf of the State. It is therefor of utmost importance that public prosecutors and magistrates dispose of the necessary knowledge of the child as witness in court to ensure that the course of the legal process is in the best interest of the child.
The foundings of this study proved that the knowledge base of public prosecutors and magistrates inadequate is in many ways. Recommendations were made in anticipation of an improved knowledge base for public prosecutors and magistrates.
North-West University
2011
Thesis
other
http://hdl.handle.net/10394/8479
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/8479/1/Cilliers_M.pdf
dae374448391c5acd14ee4243515da82
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/8479/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/8479/3/Cilliers_M.pdf.txt
63613b10e82a53a809819b4d74b5473c
Sexual abuse
Child as witness
Public prosecutor
Magistrate
oai:repository.nwu.ac.za:10394/4652018-05-09T08:41:41Zcom_10394_26463col_10394_26476
An educational intervention program for female farm dwellers focusing on resource management
Masetloa, Letta Shale
Venter, M.D.
Larney, M.
In this study, the empowering of the female farm dwellers by education and training in order to increase their knowledge and skills in family resource management, is investigated. It forms part of the FLAGH Study (Farm Labour, Agriculture and General Health). Education and training can empower women to increase their knowledge and skills, which will improve their well being as well as that of their families. According to the situation analysis, which was conducted on
the women of a farming community, it is indicated that the female farm dwellers
lacked knowledge about the optimum use of their resources such as time, budgeting and energy. The objective of the research was to design, implement and evaluate an education and training program, which could help them to manage their resources. An available sample of 27 Tswana speaking female farm dwellers, 16 to 40 years of age, residing on adjacent farms in the Potchefstroom district of the North-West Province of South Africa participated. An
intervention program was planned and implemented. The presentation of the
components of the program, which was adapted from the WOF 10 Program for
their specific needs was translated into Tswana. The method used for evaluation
included qualitative and quantitative pre- and post-tests on their family resource
management skills. The results, which were statistically analysed by using a test and calculating the effect size, indicated a statistically and practically significant increase in their resource management knowledge. The female farm dwellers' knowledge and skills regarding resource management increased, which could result in improvement of quality of life. It is recommended that resource management courses form part of any developmental project to contribute to the empowerment of participants' maximising the use of resources thereby improving their livelihood without any extra financial costs.
North-West University
2004
Thesis
http://hdl.handle.net/10394/465
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/465/1/masetloa_ls.pdf
f1d1b9e42bce2ea907b2cd7990859d69
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/465/2/license.txt
ac5e0f9262384aa1dcd107d7515298f4
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/465/3/masetloa_ls.pdf.txt
dbd4108d8a5d6a5d7b4375ea95cdda58
Farm dwellers
Adult education
Quality of life
Family resource management
Intervention research
oai:repository.nwu.ac.za:10394/12882020-07-30T11:45:43Zcom_10394_26463col_10394_26473
The establishment of implicit perspectives of personality in Tshivenda-speaking South Africans
Ntsieni, Rejoyce Talifhani
Rothmann, S.
Personality tests are widely used in South Africa. The application of personality assessment techniques for clinical and personnel decisions has been a major activity for psychologists. All main personality models have ken developed in a Western context: the question therefore arises whether these models are adequate and sufficient for South Africa. There is a need to develop personality tests that are based on South African cultures. In South Africa the continuous use of Western-based personality tests raise a challenge. The challenge also lies with the current legislation with regard to the use of psychological tests. The challenge is to construct an inventory suited to the local needs while retaining the standards of validity and reliability expected of established assessment instruments. Our socially diverse society and its wide implications for the cultural dynamics of personality evaluations that we find in South Africa warrant further research. A qualitative research design was used in this study, including interviewing as a data gathering method. A total of 120 Tshivenda speaking people from the Thohoyandou district in Limpopo province and Pretoria in Gauteng province were interviewed. A total of 4 722 personality descriptors with a view to Tshivenda speaking people were obtained from the participants, and then translated into English. Content analysis was used to analyse, interpret and reduce these descriptors to a total of 150 personality characteristics which are the most important perspectives of personality for the Tshivenda speaking individuals. The personality characteristics were divided into eight categories, namely interpersonal relatedness, sociability, conscientiousness, emotionality, meanness, intellect, dominance and a category for other traits. The interpersonal relatedness factor in the Vhavenda personality characteristics could be regarded as a cultural factor. The Tshivenda speaking people are also sociable with a preference for companionship, social skills and numerous friendships. They also have a strong sense of purpose and high inspiration levels. The Tshivenda speaking people also experience emotions and feelings related to situations that they face.
Intellect characteristics could also be extrapolated from the personality characteristics of the Vhavenda people. The findings of this study were compared to the five factor model, and evidence was found for extraversion and conscientiousness in particular. Very few characteristics of openness on the five factor model correspond to that of the Tshivenda speaking people, except in the cases of a few personality characteristics that were labelled under the category of intellect.
Recommendations for future research are made.
North-West University
2006
Thesis
http://hdl.handle.net/10394/1288
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/1288/1/ntsieni_rejoycet.pdf
2ac90340900a040eab85c37a12733adf
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/1288/2/license.txt
c5151494e7bbb56d366f566664f068a9
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/1288/7/ntsieni_rejoycet.pdf.txt
cef197ad689672182882c6c7e86645d3
Personality
Cross cultural personality assessment
Five factor model and Vhavenda culture
oai:repository.nwu.ac.za:10394/11332019-06-24T08:52:16Zcom_10394_26463col_10394_26476
Public-private partnerships : a qualitative approach to prospects for pharmacy in the South African health care environment
Lamprecht, Johan Christiaan
Serfontein, J.H.P.
Botha, K.F.H.
Lubbe, M.S.
BACKGROUND: Powerful public-private partnerships (PPPs) can only be established if the partners are able to deal with complexity. Such partnerships may serve to stimulate local community and economic development. Thus, it may maximise the effectiveness of local groups and resources in meeting the needs for rebuilding a community through a partnership representative of the public and private sectors. A problem that exists in South Africa, is the uneven distribution of population ratios dependent on public and private sector health care service delivery, in relation to the proportion of pharmaceutical service providers in the different sectors. OBJECTIVE: The main objectives of this qualitative research investigation were to examine the prospects for PPP development in the pharmaceutical sector of South Africa as well as to explore the possibilities of a proposition for a proposed generic public-private partnership model to be managed and used in the pharmaceutical sector of South Africa. METHOD: The study comprises of the exploration of the research questions by means of a qualitative research design. The study design implicated a balance between the in-depth literature study and a qualitative research process. The researcher employed a grounded theory approach to collect and analyse the data. Data collection represented the identifiable role players and opinion formulators in the South African health care sector. By following a combination of the various qualitative sampling methods and techniques, a total of 38 (n=38) interviews were conducted. The data collected from the interviewees and from the literature study were integrated and analysed by making use of computer assisted data analysis. SETTING: The researcher selected interviewees from the South African health care sector. The interviews included role players in the pharmaceutical sector in both the public and private sectors. The interviewees further represented eight different spheres of the pharmaceutical setting in South Africa. KEY FINDINGS: The investigation identified a range of prospects for PPP development in South Africa and these were reported in terms of views, expectations and scope for success. The management elements for developing and sustaining joint ventures between the public and private sectors were identified and a proposition was formulated in theory to serve as a proposed generic PPP model (PGM) in the pharmaceutical sector for the South African health care milieu. CONCLUSION The exploratory qualitative investigation surfaced the various facets of the complexity of PPPs. The investigation concluded that several barriers, such as competition and market entry disparities between the macro and micro level pharmaceutical entities, which impede PPP development, affected the prospects for PPP development in South Africa. The South African legislation, South African Treasury guidelines, regulations and the views of the SA Competition Commission need transformation to accommodate
both the micro and macro level pharmaceutical service providers in the formation of PPPs. Capacity building within the sphere of pharmaceutical service delivery to the bigger population of South Africa may become sustainable on removal of these barriers. A series of recommendations were presented and several critical issues in need of
supplementary research, have been identified.
North-West University
2007
Thesis
http://hdl.handle.net/10394/1133
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/1133/1/lamprecht_johanchris.pdf
d9f1407f2130ed74b3fc34d6366a765f
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/1133/2/license.txt
1dd73a2e4f7d71cafc0dd9347d94a7cc
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/1133/5/lamprecht_johanchris.pdf.txt
1387c39bb8ffc36515a6cd6fa4b5622b
Public-private partnerships
Partnerships
Public sector
Private sector
Health care
Pharmaceutical services
Prospects
Model
Capacity
oai:repository.nwu.ac.za:10394/9162020-09-11T06:27:48Zcom_10394_26463col_10394_26477
Komposita in Noord-Sotho
Landsberg, Gysbert Albertus
Krüger, C.J.H.
The object of this research was to study the compounds of Northern Sotho.
In Chapter 1 the problem, aims and the method were established
In Chapter 2 a survey of the general bibliography on the subject was given.
This study is mainly structural of nature, but preliminary remarks about the
T.G.G. on the subject were also taken into account. A broad discussion an
the structural view was given In terms of General Linguistics as applied to
the African languages.
In Chapter 3 language structure and language system was discussed in order
to establish a framework wherein the compound could be studied according
to the different language disciplines.
In Chapter 4 the position of the compound in relation to the other language
symbols were established by applying the different word tests of Van Wyk.
After it was established that the compound is a word, the linguistic disciplines
for example morphology, syntax, semantics and phonology, were appalled in
order to describe the compound scientifically.
In Chapter 5 the compound was studied morphologically. Its different
morphemes were identified. This was followed by describing the syntactic
structures o f the compound. It was established that the underlying structure
of the compound is a word group.
In this process it was found that the syntactic processes, for example reduction
and substitution played a major role In the establishment of the
compound.
In Chapter 6 the semantics of the compound was studied. Paradigmatic and
syntagmatic semantic characteristics of the compound in Northern Sotho were
identified. It was established that the paradigmatic semantic characteristics
of word correlates are inhibited by the syntagmatic relation in order to bring
about an unambiguous interpretation. The metaphor was found t o be even
more profound in compounds than in non-compounded words.
In Chapter 7 the phonological aspects of the compound were discussed. It
was discovered that occlusivation played a major role in the establishment of
the compound.
In Chapter 8 the statistics of 2472 compounds which were compiled in the
appendix, were given. It was found that the noun and the verb stem were
the most productive components in the formation of compounds.
A summary and conclusions were given in Chapter 9. The conclusion was
reached that the compound certainly has a place in the language system and
that it belongs to the sub-system of the word on grounds of its morphological,
syntactic, semantic and phonological characteristics.
Potchefstroom University for Christian Higher Education
1987
Thesis
http://hdl.handle.net/10394/916
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/916/1/landsberg_gysbertalbertus.pdf
7e546bd1dda683c6cae798bb02d4c260
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/916/2/license.txt
fd9fefe1b2072ffbd6943ff8f423a7ed
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/916/3/landsberg_gysbertalbertus.pdf.txt
ea7fd0bcb850a3a0a35f01ac12e80534
oai:repository.nwu.ac.za:123456789/406452023-03-07T01:04:24Zcom_10394_26463col_10394_26473
'n Ondersoek na die beeld van Sorghumbier onder swart verbruikers aan die Oos-Rand
De Kock, Maarten Petrus Albertus
Havenga, J.J.D.
Since 1973 the sales of sorghum beer showed a marked
decline and it is the object of this study to determine
to what extent, if any, the consumer's product image
contributed to this decrease. An attempt is also made
to gain some insight into the attitude of comsumers towards
beer halls, to identify the sorghum beer drinker in
terms c£ level of income as well as education and to
determine the amount of sorghum beer consumed in
comparison with the other alcoholic drinks.
From a universum of 360 000, a random sample of 360
was chosen, proportionate to the number of inhabitants in houses, hostels and private hostels in
the area. Information was collected by means of the
attached questionaire.
In identifying the sorghum beer drinker it was found
that the consumption of sorghum beer tends to de=
crease as the level of income and education is improved.
The highest consumption of sorghum beer was found
amongst labourers and semi-skilled labourers. It
is therefore concluded that as the level of income
and education of Blacks may improve a reduced consumption of sorghum beer may be expected. It is however
possible that the natural growth in population may
compensate for this tendency and that sorghum beer sales
will not decrease drastically.
The average annual consumption of commercial sorghum
beer amounts to 161 litres whilst 155 litres of home
brewed sorghum beer are consumed. The total consumption of sorghum beer therefore exceeds the consumption
of malt beer, which is 263 litres per annum. It is
however, evident that an increase in the spending on
malt beer results in a decrease in the spending on
sorghum beer and vice versa. The competition between
malt beer and sorghum beer is therefore expected to
increase.
As far as the consumer's product image is concerned,
the study revealed negative attitudes amongst respondents who do not drink sorghum beer, whilst more
positive attitudes were found amongst sorghum beer
drinkers. Only 30% of the respondents indicated
that they drink sorghum beer regularly. Reasons
given for not drinking sorghum beer revealed certain
shortcomings in the product for example the smell
which is found to be unpleasant by some respondents
and the short shelf life. Sorghum beer drinkers
viewed the product as healthy, cheap, and nutricious.
Amongst the non- drinkers of sorghum beer 47% indicated that nothing would persuade them to use sorghum
beer. The view is therefore held that it must be
endeavoured to retain the present sorghum beer
drinkers as long as possible to give serious
attention to product development to cater for
other segments of the market.
The premium put on the taste and quality by sorghum
beer drinkers demands that priority be given to
quality - and stock control.
The typical sorghum beer drinker is seen as old, male,
poor and with low educational level.
Suggestions to improve sorghum beer revealed differeces in taste which may be catered for by more than
one product. Packed sorghum beer is prefered by
43°/4 of the sorghum beer drinkers and the 1 liter
carton pack appears to be the most popular at this
stage. Price consciousness proves to be high and
drinkers are not prepared to pay much more even for
a better quality sorghum beer.
Only 41% of the sorghum beer drinkers prefer to drink
in the beer halls and the general image of the beer
halls can be described as poor with negative attitudes
towards service and facilities.
North-West University (South Africa)
1980
Thesis
other
http://hdl.handle.net/123456789/40645
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40645/1/De%20Kock_M.P.A..pdf
3572c412e3e142c58f0c4aec6a830cb6
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40645/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40645/3/De%20Kock_M.P.A..pdf.txt
c763566d6ddc5ec2bdc97862aaf26cea
oai:repository.nwu.ac.za:10394/146942018-03-02T10:27:47Zcom_10394_26463col_10394_26474
The roles of middle managers in schools: A study conducted in the Itsoseng Circuit
Maboe, Keautlwile Emily
The quality of teaching and learning is the first priority of the Department of Education
and Training. Middle managers are responsible for quality of teaching and learning. For
them to monitor teaching and learning effectively and efficiently, they should be able to
manage specific tasks such as planning, leading and evaluating successfully.
Middle managers need to assist the teachers in imparting the knowledge they have to the
learners. This will happen only if middle managers arc knowledgeable and have skills in
management and administrative roles. They arc expected to give support to teachers and
learners. Instead middle managers do not understand the departmental policies and Acts.
They should be well equipped for them to perform their duties with confidence.
A literature study and empirical research was undertaken and the roles of middle managers
were explored. A number of their duties were also explored. Qualitative in-depth
interviews formed the basis of the empirical research. Finally a content analysis was used
to categorise and evaluate data.
The findings revealed that middle managers are experiencing many challenges in their
roles. These challenges contribute to a large extent to their personal effectiveness. They
should be given relevant support. The Department of Education and Training should take
an upper hand in training and inducting middle managers and teachers for them to excel in
their roles.
Recommendations in this study showed the need to train middle managers in their roles.
An induction programme for newly appointed SMTs is viewed as ideal. Workshops are
recommended for both middle managers and teachers. The study finally identified areas
where further study should be done.
2013
Thesis
en
http://hdl.handle.net/10394/14694
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14694/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14694/3/Maboe_KE.pdf
7f3812e0d1b244eef64c120da2364e6b
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14694/4/Maboe_KE.pdf.txt
f7f8013c6e300c6db0bba728dbb798b1
oai:repository.nwu.ac.za:10394/103732018-03-12T06:41:02Zcom_10394_26463col_10394_26474
Kindertuinonderwys in Kaapland, met besondere verwysing na Noord–Kaapland
Terblanche, Ignatius Solomon
Schutte, B.C.
Potchefstroom University for Christian Higher Education
1966
Thesis
other
http://hdl.handle.net/10394/10373
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/1/Terblanche_IS_TOC.pdf
4707e0757252e644f785775cd44d7060
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/2/Terblanche_IS_Chapter_1.pdf
2bcdccf9d23669ab246e8be9672dffb5
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/3/Terblanche_IS_Chapter_2.pdf
bcf00ddbab75deb5ff7fa722a284cfb0
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/4/Terblanche_IS_Chapter_3.pdf
11ab2abe74f5485ce4624090bd6b6c53
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/5/Terblanche_IS_Chapter_4.pdf
0fc62a464aa8a34114a3533fee531efd
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/6/Terblanche_IS_Chapter_5.pdf
62a33ee009dde6846206d0617276c7b9
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/7/Terblanche_IS_Chapter_6.pdf
b935a8a26bf941e22a65fb871f4352f7
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/8/Terblanche_IS_Chapter_7.pdf
a78f89e326f32f53f0e6698c7ccadb8c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/9/Terblanche_IS_Chapter_8.pdf
ca6e73cb531ada7ce3927d81ecb389b2
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/10/Terblanche_IS_Chapter_9.pdf
40250e46aa75cb4bd528e3bda798bf00
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/11/Terblanche_IS_Chapter_10.pdf
fa13133cc13c51b88d8e3f01be7e439c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/12/Terblanche_IS_Chapter_11.pdf
25c81f26a64d1867327d47b0e2cdea49
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/13/Terblanche_IS_Chapter_12.pdf
b8e77920bf4c5dbe2e69b0034ec7b490
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/14/Terblanche_IS_Chapter_13.pdf
8ba15b48d35e20ab8055692af467f8ab
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/15/Terblanche_IS_Chapter_14.pdf
045c8d3c9c1921150bc6916455b1ac51
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/16/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/17/Terblanche_IS_TOC.pdf.txt
d77db22e5771ebc7c8baf9575f7d7604
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/18/Terblanche_IS_Chapter_1.pdf.txt
3ff8e9143f9bdbf88e2f5afa57cf0c50
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/19/Terblanche_IS_Chapter_2.pdf.txt
969616c3380daa034940cbafd2bc606d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/20/Terblanche_IS_Chapter_3.pdf.txt
092fef406ddc3895db8957cb2d325256
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/21/Terblanche_IS_Chapter_4.pdf.txt
5e4337ee3ae6aa6f4b7a1e663cdb4bfb
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/22/Terblanche_IS_Chapter_5.pdf.txt
87fc4b9d2f9f89034b56e6865a0505a4
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/23/Terblanche_IS_Chapter_6.pdf.txt
e90faeacbe795c5d4febf08e6b220a2d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/24/Terblanche_IS_Chapter_7.pdf.txt
c92b7dfb5d25ed054ad3621d107bdad8
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/25/Terblanche_IS_Chapter_8.pdf.txt
6a38546309ef855f0027d3b57fac5bc7
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/26/Terblanche_IS_Chapter_9.pdf.txt
8c1250c4338e80c7037ed182cc5e6976
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/27/Terblanche_IS_Chapter_10.pdf.txt
7772dfc6135d1d01e186469d755a26a0
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/28/Terblanche_IS_Chapter_11.pdf.txt
9de0d11ee3de52c15be43bfb12d26f09
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/29/Terblanche_IS_Chapter_12.pdf.txt
1b8d5705665cd09a8c0a077d30a1e227
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/30/Terblanche_IS_Chapter_13.pdf.txt
f0931505e4cb498a4de72a781133e53f
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10373/31/Terblanche_IS_Chapter_14.pdf.txt
78a1cfd12d4f5d36e5b0bf959bcc177f
Kindertuin
Onderwys
Suid-Afrika
Kaap die Goeie Hoop
oai:repository.nwu.ac.za:10394/76112020-08-18T08:49:19Zcom_10394_26463col_10394_26473
Key success factors in managing the visitor experience at the Cape Town International Jazz Festival
Williams, Karen
Saayman, M.
The event tourism industry is one of the fastest growing tourism industries worldwide. One
type of event that is growing immensely is festivals, especially music festivals such as the
Cape Town International Jazz Festival. As a result of the fast growing pace of festivals, it
has become crucial for a festival to sustain itself in the market place to stay competitive.
The Cape Town International Jazz Festival (the Jazz Festival) is a fast growing music
festival and hosts numerous well–known local and international jazz artists, as well as young
up–and–coming artists. For this exciting Jazz Festival to keep growing, it needs to be
sustainable. To achieve this, the organisers and managers of the Jazz Festival need to know
what is important to the visitors of the Jazz Festival, so they can fulfil their needs. This in turn
leads to satisfied visitors that will return to the Jazz Festival and keep the festival
sustainable. Generally speaking, music festivals have a more professional management
approach than other tourism events and thus are more likely to be more successful.
Key Success Factors (KSFs) are a precondition for the success of any event and will
influence the competitiveness of the event in the market place. It is imperative for organisers
to identify the KSFs that are important to the visitors so as to provide them with a satisfactory
experience. This will also assist in measuring the achievement of the event’s goals and
objectives.
The main purpose of this study was to determine the KSFs in managing the visitor
experience at the Cape Town International Jazz Festival. To reach this goal, the study is
divided into two articles. Research for both articles was conducted at the Cape Town
International Jazz Festival through distributing 400 questionnaires randomly throughout the
two days of the festival, which was held on 3 and 4 April 2010.
Article 1 is titled: “Key aspects for efficient and effective management of the Cape
Town International Jazz Festival: a visitor’s perspective”. The main purpose of this
article was to identify the Key Success Factors in managing the Cape Town International
Jazz Festival, to determine what visitors deemed as important when attending the Jazz
Festival. A factor analysis was done to achieve this goal. Results indicated that Hospitality
Factors, Quality Venues, Information Dissemination, Marketing and Sales, and Value and
Quality are the KSFs that are of importance when managing the Jazz Festival. The results of
this article provided festival managers with valuable information when organising an event
such as the Cape Town International Jazz Festival.
Article 2 is titled: “The importance of different Key Success Factors to different target
markets of the Cape Town International Jazz Festival based on travel motives”. The
main purpose of this article was to determine whether different target markets that are
visiting the Jazz Festival, deemed different KSFs as important, depending on their travel
motives. An analysis of variance (ANOVA) was done to determine if there were statistically
significant differences between the three clusters and the KSFs that they deemed important.
Results showed that the three clusters, namely, Escapists, Culture Seekers and Jazz
Lovers, deemed different KSFs as important when they are visiting the Jazz Festival. The
results of this article gave festival organisers and marketing managers insight as to which
markets to focus scarce marketing resources on and which markets to keep growing, as they
will sustain the festival in the long term.
Therefore, this research revealed the KSFs that are of utmost importance when managing
the Cape Town International Jazz Festival, and that these aspects differ for certain markets.
Organisers therefore need to assess the KSFs to provide products that will satisfy the visitor
in order for him/her to return each year and keep the festival competitive and sustainable.
North-West University
2011
Thesis
http://hdl.handle.net/10394/7611
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/7611/1/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/7611/2/Williams_K.pdf
9db323084d8ec80ef87434077752c5d1
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/7611/5/Williams_K.pdf.txt
ad4ec0ce0b90a2bc52b9a165216903b2
Cape Town International Jazz Festival
Key success factors
Management
Target markets
Factor analysis
ANOVA analysis
Kaapstad Internasionale Jazz Fees
Sleutel sukses faktore
Bestuur
Teiken markte
Faktor analise
ANOVA analise
oai:repository.nwu.ac.za:10394/260992020-11-04T14:10:35Zcom_10394_26463col_10394_26478
Long-term variation in cosmic-ray modulation
Mosotho, Moshe Godfrey
Krüger, H.
Burger, R.A.
The transport of cosmic rays inside the heliosphere can be described b
the Parker equation (Parker, 1965). Since there are no full analytica solutions to the Parker
equation, two first-order approximate solutions o the equation can be derived, namely the
Convection-Diffusion and th Force-Field approximations. These approximations were implemented t
account for heliospheric modulation only. Utilizing the Force-Fiel approximations, Usoskin et al.
(2011) calculated the modulatio potentials between 1936 and 2009 using the ionization chamber an
neutron monitor data. The normalized difference between the calculate modulation potentials by
Usoskin et al. (2005) and Usoskin et al. (2011 is 3.4 % for solar maximum in June 1991. According
to Usoskin et al (2011), their lower calculated values compared with the earlier study ar related
to the addition of the third neutron monitor yield function. Despit that, these authors argue that
these new calculated modulation potential remain consistent with the old values within the
uncertainties.
Herbst et al. (2010) have shown that the calculation of modulatio potentials do not only depend on
the Local Interstellar Spectrum but als on the energy (or rigidity) range of interest. These
authors pointed ou that the use of a different LIS can cause the calculated modulatio potential to
either increase or decrease. Based on these findings, this stud re-calculated the modulation
potentials by Usoskin et al. (2005, 2011). T investigate modulation this study uses both
space-borne (i.e. PAMELA IMP - 8 and Voyager - 1) and ground-based detectors (SANAE Hermanus,
Potchefstroom and Tsumeb neutron monitors). Th
equivalence, validity and limitations of the Convection-Diffusion an Force-Field approximate
solutions are employed at neutron monito energies. The modulation potential results of this study
are found to be i accordance with that found by other authors and in particular Ghelfi et al
(2016). There is a significant difference though between the results of thi study and Usoskin et
al. (2005, 2011) especially during solar maximu periods.
Keywords: Galactic cosmic rays, Modulation, Force-Field approximation Convection-Diffusion
approximation, Neutron monitors, Yield functions proton fluxes, local interstellar spectrum.
i
The transport of cosmic rays inside the heliosphere can be described b
the Parker equation (Parker, 1965). Since there are no full analytica solutions to the Parker
equation, two first-order approximate solutions o the equation can be derived, namely the
Convection-Diffusion and th Force-Field approximations. These approximations were implemented t
account for heliospheric modulation only. Utilizing the Force-Fiel approximations, Usoskin et al.
(2011) calculated the modulatio potentials between 1936 and 2009 using the ionization chamber an
neutron monitor data. The normalized difference between the calculate modulation potentials by
Usoskin et al. (2005) and Usoskin et al. (2011 is 3.4 % for solar maximum in June 1991. According
to Usoskin et al (2011), their lower calculated values compared with the earlier study ar related
to the addition of the third neutron monitor yield function. Despit that, these authors argue that
these new calculated modulation potential remain consistent with the old values within the
uncertainties.
Herbst et al. (2010) have shown that the calculation of modulatio potentials do not only depend on
the Local Interstellar Spectrum but als on the energy (or rigidity) range of interest. These
authors pointed ou that the use of a different LIS can cause the calculated modulatio potential to
either increase or decrease. Based on these findings, this stud re-calculated the modulation
potentials by Usoskin et al. (2005, 2011). T investigate modulation this study uses both
space-borne (i.e. PAMELA IMP - 8 and Voyager - 1) and ground-based detectors (SANAE Hermanus,
Potchefstroom and Tsumeb neutron monitors). Th
equivalence, validity and limitations of the Convection-Diffusion an Force-Field approximate
solutions are employed at neutron monito energies. The modulation potential results of this study
are found to be i accordance with that found by other authors and in particular Ghelfi et al
(2016). There is a significant difference though between the results of thi study and Usoskin et
al. (2005, 2011) especially during solar maximu periods.
Keywords: Galactic cosmic rays, Modulation, Force-Field approximation Convection-Diffusion
approximation, Neutron monitors, Yield functions proton fluxes, local interstellar spectrum.
The transport of cosmic rays inside the heliosphere can be described by
the Parker equation (Parker, 1965). Since there are no full analytical
solutions to the Parker equation, two first-order approximate solutions of
the equation can be derived, namely the Convection-Diffusion and the
Force-Field approximations. These approximations were implemented to
account for heliospheric modulation only. Utilizing the Force-Field
approximations, Usoskin et al. (2011) calculated the modulation
potentials between 1936 and 2009 using the ionization chamber and
neutron monitor data. The normalized difference between the calculated
modulation potentials by Usoskin et al. (2005) and Usoskin et al. (2011)
is 3.4 % for solar maximum in June 1991. According to Usoskin et al.
(2011), their lower calculated values compared with the earlier study are
related to the addition of the third neutron monitor yield function. Despite
that, these authors argue that these new calculated modulation potentials
remain consistent with the old values within the uncertainties.
Herbst et al. (2010) have shown that the calculation of modulation
potentials do not only depend on the Local Interstellar Spectrum but also
on the energy (or rigidity) range of interest. These authors pointed out
that the use of a different LIS can cause the calculated modulation
potential to either increase or decrease. Based on these findings, this study
re-calculated the modulation potentials by Usoskin et al. (2005, 2011). To
investigate modulation this study uses both space-borne (i.e. PAMELA,
IMP - 8 and Voyager - 1) and ground-based detectors (SANAE,
Hermanus, Potchefstroom and Tsumeb neutron monitors). The
equivalence, validity and limitations of the Convection-Diffusion and
Force-Field approximate solutions are employed at neutron monitor
energies. The modulation potential results of this study are found to be in
accordance with that found by other authors and in particular Ghelfi et al.
(2016). There is a significant difference though between the results of this
study and Usoskin et al. (2005, 2011) especially during solar maximum
periods.
North-West University (South Africa)
2017
Thesis
en
http://hdl.handle.net/10394/26099
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/26099/1/Mosotho_MG_2017.pdf
fe5f6f1cf0e4f082932565f9770d2990
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/26099/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/26099/5/Mosotho_MG_2017.pdf.txt
d45563ec2a9fd31e53d3d22bb500c7b1
Galactic cosmic rays
Modulation
Force-Field approximation
Convection-Diffusion approximation
Neutron monitors
Yield functions
Proton fluxes
Local interstellar spectrum
oai:repository.nwu.ac.za:10394/94542020-08-19T07:50:27Zcom_10394_26463col_10394_26473
The value of business tourism in the performance of an organisation
Thomas, Pieta Helen (Peta)
Slabbert, E.
The primary objective of this research is to review the value of business events in the
performance of an organisation.
Business events are categorised as part of the business tourism sector of the tourism
industry. This sector is a strong financial contributor to many nations’ economies. The
sector, sometimes also known as the M.I.C.E industry or meetings industry, focuses
on creating business events to fit the knowledge needs of organisations across a wide
range of industries. The business events are of several genre including exhibitions,
training seminars, conferences, congresses and trade shows and all have been created
for the purpose of helping organisations improve individual competitive advantages
by learning from peers, competitors, suppliers and customers.
The financial outcome of holding business tourism events is typically measured by
such indicators as the number of business event venues booked, the number of
business tourism visitors to a country attending business events, the number of hotel
bed-nights sold that relate to business events, the number of add-on packages in the
way of transport, entertainment and leisure tours used by business event attendees.
Countries including South Africa have specific national policies to attract globally
rotating business events to their own country.
While hotels, transport and other tourism activities glean substantial financial benefit
from the hosting of business events, the outcome of these events in terms of the new
knowledge created for organisations is the primary objective of this research. As
knowledge is intangible the value of knowledge is hard to understand in terms of past
performance such as financial statements but it is seen in the literature review that
there are many beneficial implications of seeking knowledge not limited to risk
management through informed decision making. New knowledge has the ability to
change the future work-place behaviour of employees in turn affecting the
performance of an organisation. Lewin (1951) summarised that the level of
behavioural change from the influence of new knowledge attained at an event is a
function of the people at the event and the environment of the event. Understanding
these variables speaks directly to managing the intangible value created from business
events. Thus Lewin’s formula as applied to business events is considered a link in the
value chain of intangible asset creation in this research.
Knowledge is an intangible asset of every organisation often documented in formal
normative managerial actions such as policies, processes and databases and also held
informally by individual employees who have personal skills and abilities. Measuring
the change in knowledge value through an intervention such as a business event has
relevance in terms of valuing the contribution of business events to improving
organisational performance. A secondary objective of this research was then to review
the current use of the Kirkpatrick-Phillips return-on-investment model in relation to
its effectiveness in defining knowledge objectives and measuring their effect on
intangible asset creation. The model is the business events sector recommended
methodology to set the objectives and key performance indicators that define the
degree of success of the business event for an organisation. The utility of this model
in helping to manage organisational knowledge value derived from business events is
reviewed. The relevance of business events to future organisational performance
improvement is understood by analysing firstly an organisation’s perspective of the
value of business events and then the perspective of an employee of the organisation
attending business events.
The findings of the literature review guided the design of both the qualitative and
quantitative surveys that were used to explore the way knowledge flows from events
into organisations. These surveys fulfil the third and fourth objectives of the research.
To understand the flow of new knowledge through an organisation many functions
and hierarchies of command, a systems thinking methodology was applied in that it is
assumed that all units of the organisation add value at their own level and this value
accumulates upwards towards the overall value of knowledge for the organisation in
creating competitive advantages.
The literature review firstly highlighted the role of creating opportunity for
socialisation at events as pivotal in improving an organisation’s knowledge. Then
systems methodology tool of viable systems diagnosis suggested a theoretical viable
systems model of what a healthy, successful organisational knowledge system would
look like. The methodology was then applied to distil the secondary data reviewed to
12 variables each composed of many other variables that act within this theoretical
model. The 12 variables were included in semi-open ended questions of a qualitative
research instrument that interviewed 18 managers who either design or attend
business events. The qualitative responses and the system of the 12 variables were
then used to guide the creation of the quantitative instrument. The quantitative
research produced 354 useable questionnaires that were statistically analysed by
exploratory factor analysis. The latent factors identified were used in the design of a
structured equation model (SEM).
The SEM indicated that organisations rely on socialisation activities such as business
events to create new knowledge. The SEM also indicates that employees of an
organisation may well consider business event activities from a personalised
perspective of their own continued professional development needs which may not
always align to those of the organisation suggesting the alignment between
organisational and personal goals as critical in maximising the value attained from a
business event. This research therefore made a valuable contribution in that it
explored the value chain between the business events and their role in improving an
individual organisation’s performance. This in turn implies from a systems thinking
point of view to the overall performance of a country’s economy. A further
contribution of this study is recommendations made to improve the ease of application
of the Kirkpatrick-Phillips model and thus manage the process of socialisation and
ultimately knowledge creation better. A pre- and post event extension to the model is
recommended defined in a template to be used in an iterative manner to improve the
management and capturing of the value of knowledge arising from the event and this
fulfils the final objective of the research.
North-West University
2012
Thesis
en
http://hdl.handle.net/10394/9454
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9454/1/Thomas_PH.pdf
a71d53258cd82cf5e8b5ead432d6bfc7
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9454/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9454/5/Thomas_PH.pdf.txt
bba45239636ec006fe6547d7b5a6eaba
ROI
Business event
Organisational performance
Knowledge
Strategy
Opbrengs op belegging
Besigheidsgebeurtenis
Organisatoriese werkverrigting
Kennis
Strategie
oai:repository.nwu.ac.za:10394/144712018-03-02T10:27:47Zcom_10394_26463col_10394_26474
The role of school management teams(SMTs) in school-based management in the Moses Kotane East area office (AO)
Molefe, Christopher Kgothe
The quality of teaching and learning is the first priority of the Department of Education and Training.
School Management Teams are responsible for quality of teaching and learning. For them to improve the quality of teaching and learning effectively and efficiently, they should he able to manage their roles and functioning successfully.
School Management Teams need to assist the educators in imparting the knowledge they have to the learners. This will happen only if School Management Teams are trained and inducted in their roles and functioning. They are responsible for daily management of activities in the school. They should understand departmental policies and Acts to enable them to perform their duties well with confidence.
A literature study and empirical research were undertaken and the role and functioning of School Management in School-Based Management were explored. A number of their roles were explored.
Qualitative in-depth interviews formed the basis of the empirical research. Finally a consent analysis was used to categorize and evaluate data.
The findings revealed that SBM is widely followed throughout the world especially in developed countries including South Africa. The role and functioning of School Management Teams under school based- management has become more important in providing the professional leadership required to provide positive learning environment.
Recommendations in this study showed the need to train School Management Teams on their roles and functioning. An induction programme for newly appointed School Management Teams is viewed as ideal. Workshops are recommended for both School Management Teams and educators. The study finally identified areas where further should be done.
2013
Thesis
en
http://hdl.handle.net/10394/14471
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14471/1/Molefe_CK.pdf
dc65cdce60d8a8b39c8c156632d92efb
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14471/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/14471/3/Molefe_CK.pdf.txt
369eb38ec845261453a2afd47cadca96
School management
oai:repository.nwu.ac.za:10394/412062023-05-05T01:04:00Zcom_10394_26463col_10394_26473
Die effek van inoefening op enkele koronêre risikofaktore en hulle onderlinge verwantskap by Suid-Afrikaanse bestuurslui
Dreyer, Lukas Ignatius
Strydom, G.L.
Steyn, H.S.
Research has indicated that coronary risk factors are interrelated in a complex manner.
The purpose of this study was firstly, to determine if physical activity can influence the
atherogenity of the individual risk factors by changing the relationship that exists between
the coronary risk factors, and secondly to determine if this interrelationship between the
risk factors had any effect on physical activity's relationship with the individual risk
factors.
Executives (N = 325) of 20 different companies were evaluated with regard to participation
in physical activity, smoking habits, lifestyle as well as some morphological and
biochemical parameters. The biochemical analysis included measures of total cholesterol,
triglycerides, HDL-cholesterol and glucose. The LDL-cholesterol and TC/HDL-ratio
values were calculated. Blood pressure measurements and a physical work capacity170 test
on a Monark cycle ergometerwas also done on each of the respondents. The relationship
between a total of 17 coronary risk factors was investigated by means of cluster, stepwise
multiple regression and two-way analyses of variance. For the purpose of the two-way
analyses of variance the respondents were placed into tertiles (low, moderate, high) with
regard to participation in physical activity, total cholesterol, LDL-cholesterol, HDLcholesterol,
triglycerides, systolic and diastolic blood pressure as well as percentage body
fat, age, smoking habits and lifestyle. Intergroup differences were determined with the
Newman-Keuls follow-up test and practical significance with the effect size calculation of
Cohen.
Body weight and the Quetelet-index showed the strongest relationship with each other
in the cluster analysis. Total cholesterol and LDL-cholesterol were strongly related to
each other as was HDL-cholesterol and the physical activity index (PAI) and systolic and
diastolic blood pressure. In the stepwise multiple regression analyses the other coronary
risk factors contributed 4.5%, 36.7%, 11.1 % and 10.3% to the respective variances of a
family history of heart disease, the Belloc and Breslow-index, age and smoking. The
other coronary risk factors showed better relationships with LDL-cholesterol, TC/HDLratio,
HDL-cholesterol and total cholesterol and contributed 95.6%, 87.9%, 81.2% and
95.6% to their respective variances. With regard to the effect of physical activity on these
relationships, the stepwise multiple regression analyses indicated that among inactive
participants, the other coronary risk factors contributed more to the variances of
percentage body fat (60.9% vs 45.1%), the Belloc and Breslow-index (44.0% vs 23.9%)
and smoking (21.5% vs 7.9%) than was the case when the same analyses were done on
the highly physically active respondents. These results seem to indicate that physical
activity may lower the atherogenity of the above mentioned coronary risk factors through
the effect it (physical activity) has on their respective relationships with the other
coronary risk factors.
The results of the two-way analyses of variance that were done support this conclusion.
It was found that the effect of physical activity on the relationships between the coronary
risk factors was of such nature that it would lower the atherogenity of all the coronary
risk factors that were used in this study. It has become clear that the interrelationship
and interdependence that exists between the different coronary risk factors has to be
taken into consideration when physical activity's relationship with the individual risk
factors is studied.
North-West University (South Africa)
1996
Thesis
other
http://hdl.handle.net/10394/41206
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41206/1/Dreyer_L.I..pdf
8feaca50e8612e21c2d2e4b7aa935981
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41206/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41206/3/Dreyer_L.I..pdf.txt
bd0e5c879caf4a71bc7e445b543a2184
Coronary risk factors
Physical activity
Blood pressure
Lipoproteins
Lipids
Executive fitness
oai:repository.nwu.ac.za:10394/402652022-11-28T06:06:01Zcom_10394_26463col_10394_26473
Die rol van goud in die internasionale betalingsverkeer
Cronje, Daniel Christiaan
Erasmus, D.P.
"No abstract"
North-West University (South Africa)
1974
Thesis
other
http://hdl.handle.net/10394/40265
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40265/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40265/1/Cronje_D.C..pdf
9c250db9271579fc8593dfbc1d6f5aba
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/40265/3/Cronje_D.C..pdf.txt
e152bfff80bfaa818d68dc2003f9123d
oai:repository.nwu.ac.za:10394/43292018-03-05T05:50:08Zcom_10394_26463col_10394_26475
Real time remote heart rate & ECG monitoring for the modern sport scientist : a front end design
Van den Heever, Ruan
Venter, Willie C.
A need exists to optimise the efficiency of the way athletes are trained in the professional sports environment. Since it is a multiple variable problem
with constraints, it provokes the need for sophisticated research, control and
design.
A control and monitoring system will be developed for the scenario where the operating range is between 0 and 50 degrees Celsius, the accuracy of the system is at least within a margin of plus or minus 10% and will be within the financial reach of the average and above average athlete and trainer. The system will be implemented in the sport science department of the North-West University.
The system behaviour under working conditions will be investigated on the athletics track indoors and out. A simplified model will then be created in software packages such as Oread and Labview (referencing the technical design). Techniques such as 'Fuzzy Logic ControP and 'Model Predictive ControF will then be implemented in the final version of the control software, especially where it concerns the heart rate and electro-cardio-graph monitoring equipment.
A literature study as well as extensive research (based on statistical outcomes) and experimentation should give an indication of the level of sophistication needed for the finalization of the project as well as the feasibility of the outcome.
With the newly available heart rate and electro-cardio-graph information in real time at the hands of the athlete trainer, a study will be made of the advantages and possibilities of such a system in the modern athletes training and sporting program.
North-West University
2007
Thesis
http://hdl.handle.net/10394/4329
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4329/1/vandenheever_r%281%29.pdf
d7df979eb4955f017f7dc8ed7acb6569
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4329/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4329/3/vandenheever_r%281%29.pdf.txt
b301e3481f0edaad60a26ff3c8b3e7be
oai:repository.nwu.ac.za:10394/134012020-09-17T05:54:51Zcom_10394_26463col_10394_26477
'n Waarderingsperspektief van ouers se betrokkenheid by hul kinders se leerproses in 'n landelike omgewing
Nel, Melanie
Reynolds, C.C.R.
Grobler, H.B.
The purpose of this study was from a valuation perspective, a qualitative inquiry on parents' involvement in their children's learning in a rural area. The population consisted of parents with children in a primary school in a rural area, in and around Wellington. Information was obtained through individual interviews with parents and a focus group interview. Data were analyzed and three themes with sub-themes and categories were identified. Findings and conclusions were made regarding parents' involvement in their children's learning process. It was found that parents are involved in their children's learning process. This research study has concluded that parents are consistently involved in their children's learning process they nurture high ideals for their children. Regardless of long working hours they still try their best to stay involved. The parents want the best for their children and nurture better jobs for their children.
2014
Thesis
other
http://hdl.handle.net/10394/13401
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13401/1/Nel_M.pdf
984081b348bbb397f10895919d796ae6
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13401/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/13401/3/Nel_M.pdf.txt
addaa97ede7bd2bd286682cbd0a724f8
Parents
Involvement
Children
Learning process
Appreciative inquiry
Rural area
oai:repository.nwu.ac.za:10394/108492020-09-16T07:48:07Zcom_10394_26463col_10394_26477
Adults' experience of coping with parental divorce during childhood : a phenomenological perspective
Du Plooy, Jacobus Christoffel
Van Rensburg, E.
Du Toit, M.M.
Divorce has long been described as one of the most stressful experiences that any human being can ever experience. The process of divorce implies numerous sudden and highly stressful changes to any individual affected by it, including children. The literature review of the present study revealed valuable insight regarding the effects of divorce, in particular on children. The studies among them which were found to have identified some of the more detrimental implications of divorce for children in particular, included the studies by Jonsson, Njardvik, Olafsdottir and Gretarsson (2000); Eldar-Avidan, Haj-Yahia and Greenbaum (2009); and Yu, Pettit, Lansford, Dodge and Bates (2010). Despite numerous research studies having been done on the phenomena of divorce both in South Africa and globally, it appears that the majority of these studies mostly focused on its detrimental implications for both children and adults. Few of these studies were found to have focused on possible optimal implications or on effective coping with divorce. Some studies that were found to have touched on the potential optimal effects of parental divorce included the studies by Mullis, Mullis, Schwartz, Pease and Shriner (2007); Graff-Reed (N.D.); and Spalding and Pretorius (2001). One particularly influential study that was, however, identified to have been done on the phenomena of coping with parental divorce, was conducted by Roux (2007) who focused specifically on children’s coping with parental divorce. This study focused exclusively on children and involved interviews with children themselves at the time of their parents’ divorce. No research could be identified on how young adults in South Africa had attempted to cope with their parents’ divorce during their childhood and/or adolescent years. This determination led to an attempt to fill this apparent void in the literature and expand on the study that had been conducted by Roux (2007) by completing the present study. The focus of the present study subsequently fell on how young adults had coped with the divorce of their parents during their childhood and/or adolescent years. The aims of the present study were: * To investigate and obtain a clearer understanding of young adults’ coping with divorce during their childhood and/or adolescent years. * To determine if there were factors that played a role in coping with parental divorce. * To determine what recommendations could be made to the parents of children undergoing divorce. * To determine what recommendations could be made to children while undergoing parental divorce. The research questions that were included in the present study for the aforementioned purpose included the following: * How did young adults cope with the divorce of their parents during their childhood and/or adolescent years? * Were there factors that played a role in their coping and if so what were the factors? * What would they recommend to the parents of children during and after divorce? * What would they recommend to children during and after parental divorce?
Semi-structured retrospective interviews were conducted with 15 participants in the completion of the present study. Each of these interviews where transcribed and the relevant data were analysed from these transcriptions by firstly reading of the protocols, followed by dividing them into natural meaning units (NMUs), performing linguistic transformation, integrating the NMUs with related themes, synthesising the data and developing a general description before it was finally documented and published. Selection of the participants was made by means of snowball sampling, as young adults nominated acquaintances whom they believed may also be willing to participate in the research (Whitley, 2002). The value of the present study was that it expanded the knowledge base regarding young adults’ coping with parental divorce during their childhood and/or adolescent years. It also culminated in the creation of a set of recommendations for both children and adults that would promote effective coping among them with parental divorce. It is hoped that these insights and recommendations will enable psychologists, social workers, counsellors, health care practitioners and/or any other individual/s involved with assisting families during divorce, to cope more effectively with this event. It is also hoped that further future research and follow-up studies into this particularly relevant and far reaching phenomenon will continue to be conducted by other researchers both in South Africa and abroad.
2013
Thesis
en
http://hdl.handle.net/10394/10849
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10849/1/Du_Plooy_JC.pdf
c164dee07090f79bdcea1eaa55e86c5f
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10849/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/10849/3/Du_Plooy_JC.pdf.txt
06d1b3febe7186604da523b6e850d82b
Coping
Parental divorce
Young adults
Middle childhood
Adolescence
Qualitative research
Retrospective interviews
Phenomenology
oai:repository.nwu.ac.za:10394/8182018-03-01T10:57:41Zcom_10394_26463col_10394_26464
International free trade and biodiversity conservation : towards 'sustainable trade'
Du Plessis, Alida Anél
This dissertation examines the current state of South African legislation addressing
biodiversity and international trade therein. Some international and domestic legal
instruments promote free trade (including free trade of biodiversity resources), while
environmental legal instruments promote the conservation of biodiversity and strictly
controlled bioprospecting, including trade in biodiversity resources. This international
conflict may influence the global and national strive for sustainable development.
Currently there is no uniform national policy that regulates or control international trade
expansion in South Africa's biodiversity resources. The new National Environment
Management Biodiversity Bill (hereafter the Biodiversity Bill), addresses several
components of biodiversity conservation on national level, but no protection of
biodiversity resources within a framework of sustainable trade is provided for. This
dissertation discusses the state of biodiversity in South Africa, the national expansion of
trade in these resources and several national and international legal obligations, in order
to prove why the above lacuna may be inhibiting sustainable trade of biodiversity
resources in South Africa.
The international obligations of South Africa with regard to international trade and
biodiversity conservation, correspond with those of Australia. This dissertation
accordingly recommends that, with regard to the legislative developments in Australia
and with the existing South African framework policies such as the National
Environmental Management Act 107 of 1998, the Environment Conservation Act 73 of
1989 and the Biodiversity Bill as basis, the national legislature should strongly consider
the enactment of a comprehensive national policy that will render sustainable trade in
biodiversity resources in South Africa.
North-West University
2003
Thesis
http://hdl.handle.net/10394/818
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/818/1/duplessis_alidaa.pdf
1173b13d197ffb57f626d6cd4de81c99
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/818/2/license.txt
471778792288a45fa70b92b2d87ad629
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/818/3/duplessis_alidaa.pdf.txt
f8d14dbfb9423ea1f28eb3f8693fdfc2
oai:repository.nwu.ac.za:10394/3612020-09-11T11:44:44Zcom_10394_26463col_10394_26477
'n Maatskaplikewerkmodel vir ondersteuningsdienste aan misdaad-geaffekteerdes in die Noordwes-Provinsie
Steyn, Marie Magdalena
Strydom, H
The primary aim of h s research is to evaluate crime and its effect on people from a
Reformative perspective. Furthermore to develop a social work support model, according to
which co-ordinated services can be provide to all people that are affected by crime in the
Northwest Province as an exemplar of a rural community. The thesis consists of three
sections.
Section A includes in the first place a reference to the actuality of the research. It is namely
clear that the level of crime in South Africa, in some instances the highest in the world,
requires extensive support for the survivors of these criminal acts. Therefore, the research
aim, as given above, lead to four specific objectives. Section A also explains the research
methodology. The research was structured according to the Intervention research model
within the qualitative research approach. Data was collected by means of a literature study,
comparison of the systems of victim support in the Netherlands and South Africa and
interviews using a semi-structured interview schedule.
Section B consists of the four articles that form the report about the research outcomes.
Each article is a report about a particular sub-project of the research and each has, as self-contained
units, an own research aim, research method and report Each of these is linked
with the central aim, objectives and content of the over-arching research project. The four
articles are:
In Article 1, 'Crime and its impact on people - a Christian perspective', crime is turned down
and it is argued that the survivor of crime should be cared for within the Biblical perspective.
Article 2, 'A comparison between the support systems for victims of crime in the Netherlands
and South Africa', provided clear guidelines for support systems in developing communities.
The formation of a h e support network and the provisioning of compensation to victims are
some of these guidelines.
In Article 3, 'An investigation into support available to survivors of crime in the North-West
Province' it was found that a lack of specialized and professional services is present as well as
the lack of co-ordination in the provisioning of the support services. An effective support
system of professional services is of the utmost importance and resources, especially h a n d
resources, are required to develop an attainable and sustainable support system.
The fourth article 'A model for support services available to crime affected people in the
North-West Province' contains the model that was developed for support to crime affected
people in a rural and deep rural area of our country. The model can be illustrated by a
network consisting of four panels, each including particular institutions providing particular
services.
In Section C a summary of the findings and recommendations of the full research project is
provided. Some short-comings, based on specific restraints, are explained and the
contribution of the study is provided.
North-West University
2004
Thesis
http://hdl.handle.net/10394/361
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/361/1/steyn_mm.pdf
c371c1a8acc81d10842f6a30ff374a9d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/361/2/license.txt
fcff1e517fe27f6c21526b9052fdeb2a
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/361/3/steyn_mm.pdf.txt
eafb684c2d6d3651dfbfbd8b834e73bd
Victims of crime
Crime effected person
Rural area
Social work model
oai:repository.nwu.ac.za:10394/113212020-11-18T14:08:19Zcom_10394_26463col_10394_26478
Critical assessment of the MEDUSA gamma ray detection system for radon flux measurement on a tailings dam
Motlhabane, Tebogo Gladys Kgaugelo
Tsela, A.S.
Worldwide measurement of radon flux on mine tailing dams has been performed
using various instruments. Some of the methods used in South Africa are electrets,
alpha tracks, accumulator cans etc. Although these techniques and methods have
been used for many years, a number of shortcomings are still evident. The major
shortcomings are that, the methods lack spatial representivity that is, they only
measure the radon flux at a point where they' are placed and not the whole site in that
way, the spatial variation is not shown in a site which is not homogeneous. Another
shortcoming is that, they do not show seasonal variation and some have a back
diffusion problem, and the time required for the result to be known is too long. For·
example it takes several days for electrets to gather sufficient information required,
yet it is a single point result. This makes it difficult to steer the measurement.
Furthermore, the moisture and atmospheric pressure on the mine dump influence
some of the measurements.
The above shortcomings led to the investigation of a new· technique based on
gamma ray spectrometry to quantitatively assess the radon flux from the mine
tailings dam. The system is called Multi Element Detector for Underwater Sediment
Activity (MEDUSA). Initially, this technique was uniquely designed to measure the
radioactivity on the sea floor where it proved to be successful. The major focus of
this research study was, therefore, to critically assess the MEDUSA gamma ray
detector system for measurement of radon flux on a tailings dam.
The process of determining the radon flux in this work involved field measurements
using MEDUSA and laboratory measurements using Hyper Pure Germanium (HPGe}
detector. The laboratory measurements were for correcting the field measurements.
The HPGe has better advantage over MEDUSA in terms of resolution and this
means that the gamma ray energy peaks have better visibility than on the MEDUSA.
The field measurements on the tailings dam were done using the MEDUSA mounted
on a 4x4 vehicle, and simultaneously sample points were identified and samples
collected.
The samples were measured for specific activity in the laboratory using gamma
spectrometer with HPGe detector. These measurements enabled the determination
of a factor that was used to calculate the activity of radium in the field. This activity
was found to have an average of 309 Bq.kg"1 with data range of 60 -540 Bq.kg-1.A radon flux equation was then derived and used to calculate the radon flux on the field. Based on the radium content, the radon flux was calculated to average about 0.105 ± 0.023 Bq.m-2 .s-1
The results are within the same range as the previous flux measurement on the
same tailings dam but with better statistics. This research work has demonstrated
that the MEDUSA can be adapted for radon flux determination from tailings dam. The
method promises to address some of the key shortcomings of existing techniques
and the usefulness of this method can be extended to measuring radioactivity on
contaminated sites for rehabilitation purposes.
2003
Thesis
en
http://hdl.handle.net/10394/11321
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11321/1/Motlhabane_TGK.pdf
3a54e8927ab8f1a3dcb7206b75d6094a
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11321/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11321/3/Motlhabane_TGK.pdf.txt
bdc9d4901bcce384a704ca34b3fdb173
Gamma ray spectrometry
Gamma rays-Measurement
Radon measures
oai:repository.nwu.ac.za:10394/37392018-03-05T06:18:00Zcom_10394_26463col_10394_26476
A retrospective analysis of the prescribing patterns of isotretinoin
Kruger, Ulrich Victor
Gerber, J.J.
Lubbe, M.S.
Serfontein, J.H.P.
Acne is a very common disease affecting approximately 85% of people in some stage of their life (Wolff et al., 2005:2). The systemic drug isotretinoin is the only acne drug which has an influence on all the pathophysiological factors of this highly prevalent disease and is considered as the most effective treatment for acne, although it should be limited to the treatment of severe acne. Isotretinoin prescribing is under the largest risk-minimisation programme (called iPLEDGE) ever implemented for a drug in the United States of America, due to concerns with pregnancies during isotretinoin treatment (Honein et al., 2007:11). In comparison South Africa has no equal managing programme to regulate isotretinoin prescribing and the need to identify certain prescribing patterns is deemed necessary. The general objective of this study was to analyse the prescribing patterns of isotretinoin, including aspects of cost, in a section of the private healthcare sector of South Africa. A quantitative, retrospective drug utilisation review was performed to evaluate the prescribing patterns and cost of isotretinoin containing products claimed through a pharmacy benefit management organisation, over the study period of 2005 and 2006. Data were analysed by using the Statistical Analysis System, 9.1 (SAS). The information of prescriber, age, gender, and cost of isotretinoin usage were considered and evaluated. A total number of 6 427 and 6 927 patients claimed 18 589 and 20 232 isotretinoin prescriptions respectively during 2005 and 2006. Isotretinoin total costs contributed to 34.4% (n = R6 810 090) and 36.3% (n = R6 533 241) of the total identified acne medicine costs for 2005 and 2006 respectively. Isotretinoin represented the highest percentage of total costs in relation to any other acne product identified in both study years. Average costs of R314.82 ± 205.92 per prescribed isotretinoin item in 2005 and R277.63 ± 192.63 in 2006 were recorded in comparison to the total database medicine item cost of R95.33 ± 192.21 in 2005 and R95.33± 227.99 in 2006. The generic products of isotretinoin were claimed at a lower ratio (generic vs. innovator product ratio of 1.8:1 in 2005 and 2.2:1 in 2006) in relation to the total database (generic ratio of 3:1 in both years). Dermatologists prescribed 68.2% and 65.7% of isotretinoin prescriptions and general practitioners 27.5% and 29.7%. General practitioners were more likely to prescribe the generic equivalents of isotretinoin (68.9% in 2005 and 72.1% in 2006) in comparison to dermatologists (59.7% in 2005 and 63.4% in 2006). The teenage group 12 to 19 years received 48.4% (n = 8 989) and 47.7% (n = 9 656) of isotretinoin prescriptions claimed respectively at an estimated cost of R275 000 and R260 000 per 10 000 beneficiaries in this age group respectively for 2005 and 2006. There were 71 patients identified over both study years in the age group younger than 12 years, in which isotretinoin use is not recommended.
Female patients received 56.2% (n = 10 450) and 57.4% (n = 11 610) of the total number of isotretinoin prescriptions claimed respectively for 2005 and 2006. The average cost per isotretinoin prescription claimed for male patients was higher (R406.36 ± 233.76 and R358.69 ± 218.29 respectively for 2005 and 2006) in relation to female patients (R335.15 ± 209.98 and R296.36 ± 197.74 respectively for 2005 and 2006). The median ages for female and male patients were 21 years and 18 years respectively. The concern, however, was the high number of female patients of child-bearing potential identified (2 892 and 3 201 female patients respectively for 2005 and 2006), claiming their isotretinoin prescriptions.
Systemic isotretinoin occurred alone in 70.8% and 69.3% of prescriptions claimed respectively for 2005 and 2006. Oral contraceptives occurred in combination with isotretinoin in only 8.6% and 9.2% of isotretinoin prescriptions claimed. The contra-indicated use of a systemic tetracycline in combination with systemic isotretinoin occurred in 139 (0.75%) and 130 (0.64%) prescriptions. It can be concluded that the use of isotretinoin increased. Dermatologists played the major role in prescribing isotretinoin. The number of female isotretinoin users (especially of child-bearing potential) could be a concern, although pregnancy prevalence should be identified in South Africa. It is recommended that further studies be conducted in South Africa regarding the usage and control of isotretinoin, including the extension of regulating programmes, with special reference to age and gender. Effective management of the increasing popularity of this ultimately successful acne treatment is of utmost importance to ensure the effective and safe usage of isotretinoin.
North-West University
2008
Thesis
http://hdl.handle.net/10394/3739
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/3739/1/kruger_ulrichv%281%29.pdf
7820aaab55553dc872b6374eeb9a3309
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/3739/2/license.txt
ec6dc156eb59a38ff262e2b0e27aad23
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/3739/3/kruger_ulrichv%281%29.pdf.txt
458364fe6db370d22de151c31376fdad
Isotretinoin
Prevalence
Age
Gender
Prescriber
Medicinal treatment cost
oai:repository.nwu.ac.za:10394/191482018-03-05T05:50:04Zcom_10394_26463col_10394_26475
Quality management system to improve conveyor system performance : Lethabo Power Station as case study
Budeli, Lalamani
Fick, J.I.J.
Eskom Lethabo Power Station experienced a number of ash plant conveyor failures that resulted in production loss and plant damages. This study was aimed at determining the root causes of the failures (technical, management system and process) that led to conveyor unreliability. The problem was verified by interviewing people working in the plant and by analysing financial, technical and process data. A hypothesis was made that the problem emanates from poor quality management practices; this was confirmed by carrying out root cause analyses on 10 major events that occurred. It was evident that the costs of poor quality in the ash plant were very high and requires urgent
attention. A literature review was conducted to establish whether the quality management system complies with the requirements of ISO 9000 and total quality management (TQM). The survey found that the Eskom Lethabo Power Station partly complies with the requirements of ISO 9001 on an organisational level. However, the ash plant did not comply with the requirements of ISO 9000 in performing its daily duties. The plant quality documents and systems were evaluated to establish whether they could have prevented the incidents from occurring. It was found that the documentation and data records were inadequate. To determine the root causes of the technical quality problems, a brainstorming session was conducted using the nominal group technique to gather data as quickly as possible. The cause and effect analysis was designed to identify all potential causes of the problem. The Pareto analysis was used to prioritise the identified causes. The three factorial experiments were designed to measure process parameters (speed, mass, operating hours). Data was recorded using supervisory control and data acquisition (SCADA). The data was analysed using three factorial calculations. Data was validated by performing analysis of variance (ANOVA) calculations. The survey questionnaire (using the Likert scale) was designed to measure the level of adherence of the ash plant employees and management to the requirements of the ISO 9001 management system. The questionnaire measured the elements of the quality management system (QMS) requirements, its importance and its implementation at the ash plant. The pilot
interview was conducted with five respondents who are part of the selected population, and the results suggested that managing supplier quality was a major contributor to quality problems The interview output was used to determine changes proposed to the ash plant QMS. All ideas were verified by the senior engineer and validated by the plant engineering manager.
North-West University (South Africa) , Potchefstroom Campus
2015
Thesis
en
http://hdl.handle.net/10394/19148
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/19148/1/Budeli_L_2015.pdf
1edd8e4ca3e7f7546355c3fac51ed686
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/19148/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/19148/3/Budeli_L_2015.pdf.txt
54a53a0fbdff344de572254a374ecd8d
Quality managements system (QMS)
Quality management
Organizational performance
Continuous improvement
ISO 9000
oai:repository.nwu.ac.za:10394/116812021-06-29T15:19:08Zcom_10394_26463col_10394_26479
Die gelofte van 1838 teologies beoordeel in die lig van die historiese en liturgiese ontwikkeling daaromheen
Venter, Petrus Jacobus
Spoelstra, B.
1991
Thesis
other
http://hdl.handle.net/10394/11681
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11681/5/Venter%2c%20P.J.%201991.pdf
61ebec2cf72efd96c15612630483bf11
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11681/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11681/3/Venter_PJ.pdf.txt
399f849ed2ff09b36bc01d6430304f8d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/11681/6/Venter%2c%20P.J.%201991.pdf.txt
ed7d345e21eb1df798729b8084c5c519
oai:repository.nwu.ac.za:10394/411092023-05-02T01:03:48Zcom_10394_26463col_10394_26477
Examining community media sustainability in the digital age : a study of community radio stations in the North-West province of South Africa
Tella, Didunloluwa Olayinka
Heuva, W.E.
Studies abound on different approaches by which media firms can achieve sustainability. However, there is intense paucity of literature on ways in which local media firms (community radio in South Africa) can achieve sustainability amidst the prevailing digital challenges. Hence, the knowledge gap this study intends to fill.
Current studies indicate a good amount of scholarly work on media sustainability focusing on large media organizations, however, there are insufficient literature that discusses methods/approaches by which local media station/ managers can achieve sustainability in Africa, particularly in South Africa. Hence, the knowledge gap.
Thus, in a bid to fill this gap and contribute to the broader media management scholarship in South Africa, the effort is to contribute and expand the literature on the sustainability of community radio in the digital age by assessing the ways community station managers in the North-West Province have used to keep their small media firms up and running in this digital times. It seeks to propose appropriate methods by presenting certain best practices/methods that media managers can adopt in handling/managing their media firms effectively in this digital times.
Using a qualitative method and drawing samples from community station managers, media experts and the academics; the study examined and interrogated the various attempts in which community radio stations achieve sustainability in the digital age. This was done using semi-structured interviews and the Dynamic Capability Concept was used as the theoretical basis. In this digital age, it is pertinent to state that media sustainability goes beyond financial sustainability. Its social and institutional sustainability should be incorporated. Thus, for media organization-particularly community radio to achieve sustainability in this digital age, it must leverage and harness on its ‘localness’.
Theoretically, and in line with the interpretivist/constructivist paradigm, this study has been able to contribute to knowledge and has proposed a new approach to achieving media/community media sustainability in the digital age - which is by leveraging on the medium’s dynamic capability (localness). Contextually, the study has attempted to close the knowledge gap by presenting ways community media stations in the North-West Province can achieve sustainability in the digital age. Furthermore, and as a way to contribute to community media/media management scholarship in the South African context, this study
debuts as a novel contribution to achieve community media sustainability amidst the prevailing digital challenges - an area that is under-researched.
North-West University (South Africa)
2022
Thesis
en
https://orcid.org/0000-0003-2039-3254
http://hdl.handle.net/10394/41109
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41109/1/Tella%20DO.pdf
3657dd0c355c7dc489ae953908da2d52
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41109/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41109/3/Tella%20DO.pdf.txt
9e028d2addd10da835db8e29c4979701
Examination
Community Media
Sustainability
Digital Age
North-West Province
South-Africa
oai:repository.nwu.ac.za:10394/419852023-08-12T01:07:17Zcom_10394_26463col_10394_26473
Investigating workplace spirituality and perceived mentoring support in a public sector department in Limpopo province
Mukhaninga, Tshililo David
The key objective of the study is to establish the relationship between perceived mentoring support (including career support, psychosocial support, and role modeling) in the department of Transport and community safety in the Limpopo Province and workplace spirituality, encompassing (productive work, association with organizational values and a sense of belonging). Individuals who worked in the department of Transport and community safety in the Limpopo Province, South Africa, made up the research population. A sample of 322 employees was given a study questionnaire, to which 259 responses were returned. The feedback was compiled into an excel data sheet, where it underwent statistical analysis. The validity and reliability of the questionnaire were mostly verified by statistical analysis. The results demonstrated a favourable association between perceived mentoring support and workplace spirituality. Employees who engage in workplace spirituality are more in line with the department's goals and beliefs.
North-West University (South Africa)
2023
Thesis
en
https://orcid.org/0000-0001-5990-0917
http://hdl.handle.net/10394/41985
https://repository.nwu.ac.za/bitstream/10394/41985/1/Mukhaninga_TD.pdf
0ca8216089a861a8cd3d5c70d6718df5
https://repository.nwu.ac.za/bitstream/10394/41985/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/41985/3/Mukhaninga_TD.pdf.txt
7700806cc49e2f346ef1904e55a450a6
Workplace Spirituality
Mentoring
Mentoring support
Sense community
oai:repository.nwu.ac.za:123456789/407082023-03-10T01:04:06Zcom_10394_26463col_10394_26473
Enkele uitgangspunte by herkurrikulering in die vak ekonomie
Jordaan, Henine
Van Hamburg, E.J.
Van der Merwe, S.J.
Any significant degree of change in any major institution gives cause to concern. When those
institutions are rooted in decades, even centuries of tradition, change is easily perceived as
impending disaster. South Africa's economy is amongst others characterised by unsufficient
economic growth to enable job creation, low productivity and low international
competitiveness. Population growth is higher than the increase in economic growth, which
causes unemployment. At the same time students leaving universities are struggling to find
jobs, because of the lack of practical experience and the fact that they are educated in courses
for which there exist a small demand in the labour market. To rectify the imbalance between
the demand of labour and the supply thereof out of the universities, the curriculum at
universities need to be reformulated to meet the needs of the labour market and the society.
Curriculum reconstruction is taking place at top level, but has not been seen to include the
diverse aims of the economy as a hole to contribute to sustainable development. Universities
do not want to lose an iota of their ideals, status and achievements, financial realities are
forcing them to take note of the demands of the labour market to enable better usage of
human capital to enable economic growth so that the needs of the society are met.
Universities, which are traditional leading providers of high-level manpower, are questione9
as to their real ability to provide the intellectual quality of manpower that South-Africa need
to lead and manage the necessary changes. The study was divided into and discussed into
three major parts. In the first part the different models of the way in which curriculum are
developed were discussed. It was concluded that the spiral curriculum model was used by
most education institutions because of its effectiveness and was therefore used as a basis in
the study to create new objectives for a needs driven curriculum. The shortcomings in the
current curriculum were discussed to enable the researcher to create new objectives in which
curriculum at universities should be compiled. In the second part of the study the demand
of labour in the economy and the supply thereof out of the university were discussed. It
became evident that the majority of students are registered for courses in the Human and
Social Sciences, although the labour market needed engineers, physical scientists and
entrepreneurs to create economic development. In the third part of the study new objectives
for the Department of Economics at the Vista University on the way in which curriculum
should be compiled by means of the outcomes based education approach were discussed. It
was concluded that the curriculum needed to be more practical. The effects of the technology
could not be ignored when curriculum are compiled. Distance education gives an outcome to
students to combine theory and practical experience at the -same time. Role players could not
be ignored in the process of curriculating. International competitiveness needs to be taken
into account in the curriculum. The recommendations of the Commission of Higher Education
was all the way through used, as a frame in which the curriculum aims were developed.
North-West University (South Africa)
1998
Thesis
other
http://hdl.handle.net/123456789/40708
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40708/1/Jordaan_H..pdf
9f1ad4860ee0ee4432a5b52f0cd692bd
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40708/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40708/3/Jordaan_H..pdf.txt
81e70afc48f54bbfddd409ea00153f2c
oai:repository.nwu.ac.za:10394/412972023-05-09T01:03:43Zcom_10394_26463col_10394_26473
'n Ondersoek na die moontlike rekenarisering van 'n projekbestuursafdeling binne 'n groot vervaardigingsonderneming
Koekemoer, Leon
Bruwer, P.J.S.
This thesis covers an investigation into the possibility of
computerizing a Project Management Department within a large
Manufacturing Organization.
The purpose of the investigation is to determine the influence on the
productivity between the existing filing/retrieval system and the
proposed computerized system with specific reference to the retrieval
of information and not only the documentation as such.
The investigation is based on observations which were made during the
day to day functioning of the Department. It is also based on data
and information which were collected by means of questionnaires and
interviews with the different Section Heads.
In Chapter l, the investigation first covers a general background of
information on Management Information Systems. Chapter 2 then
studies the application of this general theory in a Project
Management Environment.
In view of these backgrounds Chapter 3 investigates and evaluates the
existing Project Management Office. At the end of Chapter 3 the
findings, conclusion and recommendation are formulated.
Chapter 4 goes into a deeper investigation into the above-mentioned
conclusion and recommendation and proves the need in this Office for
an automated filing/retrieval system. It covers an economical
evaluation on a typical system and a brief application description of
the system within the existing Office.
The overall finding is that a computerized system can have a
remarkable effect on productivity. At this stage the implementation
of a computerized filing/retrieval system won't have a significant
effect on the methodology and procedures of the existing Office. It
is also recommended that the services of a professional analyst be
employed after implementation, for an indepth investigation on the
existing Management Information System.
The last part of the thesis is a personal view on the development of
these type of computerized systems in South Africa.
North-West University (South Africa)
1985
Thesis
other
http://hdl.handle.net/10394/41297
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41297/1/Koekemoer_L..pdf
a4decee334d79295f8639c8edca4e968
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41297/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41297/3/Koekemoer_L..pdf.txt
1189db1f4d421f770e2bf5a75fecc220
oai:repository.nwu.ac.za:10394/24132020-07-30T08:11:58Zcom_10394_26463col_10394_26473
'n Ondersoek na lojaliteit teenoor kruidenierswinkels in die gebruikersmark
Viljoen, Willem Petrus
Venter, P.F.
Growing changing markets within the milieu of the phenomenal population increase, present marketers or manufacturers with golden opportunities to present a variety of consumer goods and services. Consumers comprise the most important components within the consumer market. Knowledge of the behaviour patterns and consumer decision-making is of cardinal importance to those enterprises concerned with the marketing of these products and services.
This research was conducted primarily to evaluate the loyalty of the consumer in respect of the trade marks of the grocer concerned. Three of the major food chain stores within the Vaal Triangle, were chosen for this study. In order to evaluate the loyalty towards the three food chain stores and the trade marks (including the food stores' no-name brands involved), in depth interviews were held with the different respondents in the separate food chain stores. This enabled the researcher to obtain a fairly accurate perception of the consumer's loyalty. As this investigation was a pioneer assignment, use was also made of judicious sample collecting, in order to in this way ensure the active involvement of diverse consumers.
As the essential basis of the pioneer research conducted, a six-point Liker Scale was applied, which covered the entire empirical research. The scales in sections A and B varied from point 6 (the highest point), to point 1, (the lowest point). Section C presents the highest point on scale, 1, and 6 again, the lowest. A pilot group research was done in order to establish the validity of the questionnaire. The results obtained, present adequate indications of the reliability of the information. The reliability of the pilot group was that of the proposed level of 0, 70 (Nunnally, 1978:245). The Cronbach Alpha for this random sample was 0,716086. A total of 472 questionnaires were distributed to the various food chain stores in the Vaal Triangle by canvassing the assistance of various field workers. The results clearly indicated the importance and meaningfulness of consumers' information in respect of the opinion regarding the specific stores and the various other food chain stores. These research findings could contribute to the future development of consumer loyalty regarding the particular food stores. In this respect consumers indicated, that the overall appearance of the shop was very important, including the services rendered. Should customers be satisfied with the food chain stores, the former would recommend the food store concerned to friends and family members.
North-West University
2004
Thesis
http://hdl.handle.net/10394/2413
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2413/1/viljoen_wp.pdf
eebc059a8072067a7c0f8f0f3c62949e
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2413/2/license.txt
d854b1c15901b8d0560af590b1d550b7
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2413/7/viljoen_wp.pdf.txt
267d95421bd9c222941588cc77674b52
oai:repository.nwu.ac.za:10394/41092018-05-17T09:41:09Zcom_10394_26463col_10394_26477
Taalbeplanning : die stand en toekoms van taalbeplanning vir Afrikaans in 'n multitalige Suid-Afrika
Verhoef, Maria Magdalena
Du Plessis, H.G.W.
LANGUAGE PLANNING: THE PRESENT SITUATION AND THE FUTURE OF LANGUAGE PLANNING FOR AFRIKAANS IN A MULTI-LINGUAL SOUTH AFRICA. The hypothesis underlying this study is the following: The fact that the position of Afrikaans is under siege at present can be attributed, among others, to the years of uncoordinated, strategyless involvement with language by anyone who felt the urge to do so. In order to prove this hypothesis to be either true or false, the broad objective with this study was posited as being the determination of the status of language planning for Afrikaans against the background of the theory of language planning. In order to achieve this objective, the following specific objectives were striven after: To determine what methodological principles underlie the science of language planning; by way of empirical study to make a situation analysis of the status of language planning activities for Afrikaans; to measure the practice of micro level and macro level planning for Afrikaans against language planning theory in order to determine to what extent the theory and practice tie in with or differ from each other; and by way of a conclusion to make recommendations with regard to a possible language plan for Afrikaans. In chapter 2 the theory of language planning is discussed. On the basis of certain distinguishable elements the following working definition of language planning can be accepted: Language planning is a future-directed, language problem-solving action which manipulates a purposeful language change in accordance with a set of objectives and which, in the course of this process of change, keeps cognizance of the socio-cultural environment in which the language problem manifests itself. It becomes clear that language planning is a scientific sub discipline with strong fundamental and methodological bases. When language planning activities are robbed of this fundamental aspect, there is the danger that language planning can be used as an instrument to effect mere social or political change. It is therefore imperative that any language planning project should answer to this theoretical demand. In order to measure the language planning activity for Afrikaans against language planning theory, it is necessary to do a situational analysis of the status of actual and putative language planning for Afrikaans. The situational analysis of the status of language planning for Afrikaans is given in chapter 3. In chapter 4 the micro level language planning activities for Afrikaans are measured against language planning theory. It emerges clearly from an analysis of the activities of organizations and institutions that language promotion does enjoy the attention of certain institutions. The problem is, however, that these activities are occurring in a loose, unstructured and uncoordinated fashion, so that one finds
both overlap and duplication. This planless promotion of Afrikaans cannot be called language planning. In chapter 5 the macro level language planning situation in South Africa is studied. At the outset an outline is provided of the applicable macro level language planning theory, following which it is applied to the South African situation. It becomes clear from the research that true macro level language planning activities for Afrikaans (and in actual fact for all languages in South Africa) have not yet become reality. The recommendation that eventually has to be made is that the government has to enter into the discussion on language in South Africa because a language policy can achieve little until it attains some measure of official status. By way of conclusion it can be said that, although one can observe traces of language planning theory in the activities of various organizations or institutions which are working towards the status of Afrikaans, one cannot really speak of true language planning. This uncoordinated, strategy-less language involvement (which clearly does not comply with the demands of the theory of language planning) has the result that there is now an undignified scramble in progress about the future of Afrikaans. In order to execute the fourth objective, recommendations are made in chapters 6 and 7 with regard to language planning for Afrikaans in a multi-lingual South African society. The study is concluded with a preamble to a possible language plan for Afrikaans. In chapter 2 the theory of language planning is discussed. On the basis of certain distinguishable elements the following working definition of language planning can be accepted: Language planning is a future-directed, language problem-solving action which manipulates a purposeful language change in accordance with a set of objectives and which, in the course of this process of change, keeps cognizance of the sociocultural environment in which the language problem manifests itself. It becomes clear that language planning is a scientific subdiscipline with strong fundamental and methodological bases. When language planning activities are robbed of this fundamental aspect, there is the danger that language planning can be used as an instrument to effect mere social
or political change. It is therefore imperative that any language planning project shoud answer to this theoretical demand. In order to measure the language planning activity for
Afrikaans against language planning theory, it is necessary to do a situational analysis of the status of actual and putative language planning for Afrikaans. The situational analysis of the status of language planning for Afrikaans is given in chapter 3. In chapter 4 the microlevel language planning activities for Afrikaans are measured against language planning theory. It emerges clearly from an analysis of the activities of organizations and institutions that language promotion does
enjoy the attention of certain institutions. The problem is, however, that these activities are occurring in a loose, unstructured and unco-ordinated fashion, so that one finds
both overlap and duplication. This planless promotion of Afrikaans cannot be called language planning. In chapter 5 the macrolevel language planning situation in
South Africa is studied. At the outset an outline is provided of the applicable macrolevel language planning theory, following which it is applied to the South African situation. It becomes clear from the research that true macrolevel language planning activities for Afrikaans (and in actual fact for all languages in South Africa) have not yet become reality. The recommendation that eventually has to be made is that the government has to enter into the discussion on language in South Africa because a language policy can achieve little until it attains some measure of official
status. By way of conclusion it can be said that, although one can observe traces of language planning theory in the activities
of various organizations or institutions which are working towards the status of Afrikaans, one cannot really speak of true language planning. This unco-ordinated, strategy-less
language involvement (which clearly does not comply with the demands of the theory of language planning) has the result that there is now an undignified scramble in progress about the future of Afrikaans. In order to execute the fourth objective, recommendations are made in chapters 6 and 7 with regard to language planning for Afrikaans in a multi-lingual South African
society. The study is concluded with a preamble to a possible language plan for Afrikaans.
Potchefstroom University for Christian Higher Education
1991
Thesis
http://hdl.handle.net/10394/4109
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4109/1/verhoef_mm.pdf
3a9499c6f645b13a5955b3102f0ead8d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4109/2/license.txt
cc8ae46911bdfb9312471c63ceabff20
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/4109/3/verhoef_mm.pdf.txt
a29ca327ceef28a04e73841efb7398d0
oai:repository.nwu.ac.za:10394/410052023-04-27T01:05:16Zcom_10394_26463col_10394_26477
An analysis of the North West provincial government's international cooperation policy framework and its inpact on socio-economic development
Noge, Lebogang
Ewusi, Kale
The main aim of the this study is to critically analyze the North West Provincial
Government's International Cooperation Policy Framework and the impact that it
has had on socio-economic development in South Africa and particularly the
North West province, which has been associated with poverty and
underdevelopment. This will also look at the policy's relevance and commitment
to South Africa' s foreign policy, which amongst other thing aspires to forging
international cooperation, where South Africa as the leading actor will impart the
spirit of solidarity in overcoming the prevailing socio-economic and political
imbalances continues to threaten peace and security.
It is with this cooperation that South Africa and the region as a whole will attract
both domestic and international investors to curb against the inherent socioeconomic
and political ailments of the colonial and apartheid regimes where the
effects and legacy of the divide and rule strategies are eminent today.
It is in this era of Africa's renaissance, where South Africa as a big brother in the
region will through its provincial governments, facilitate its aspirations. This will
however require some level of introspection of internal policies by respective
levels of governance in all nine provinces, so as to identify the challenges and to
equally enhance adequate implementation relevant policies towards socioeconomic
development.
North-West University (South Africa)
2009
Thesis
en
http://hdl.handle.net/10394/41005
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41005/1/Noge_Lebogang.pdf
49bad1900f1a58180752ced215d5983e
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41005/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/41005/3/Noge_Lebogang.pdf.txt
0e60157f050c9f4b93166dc612abf8a7
oai:repository.nwu.ac.za:123456789/407712023-03-16T01:04:59Zcom_10394_26463col_10394_26479
Leadership Success in Luke-Acts : power, authority and status with regards to a leader's performance
Briix, Stephen Don
Viljoen, F.P.
This dissertation examines the Lucan understanding of successful leadership. Luke-Acts addresses many aspects of leadership such as power, authority and status. The gospel of Luke also conveys Jesus teaching on important leadership topics such as greatness and how God evaluates performance. Through a careful exegetical study of the passages dealing with
these concepts, Luke-Acts provides important insights into leadership success.
The author of Luke-Acts viewed success as being close to the Father. He differed with many
people in his context who viewed success in terms of social position, such as higher status, power and authority. Instead, the Lucan view is that God evaluates success based on the condition of peoples’ hearts. God does not evaluate leaders based on their position in society, the size of the organisation they run or the influence they wield. Instead, leaders achieve
success (closeness with God) by faithfully using the power and authority entrusted to them by God according to His desires for the benefit of those under their authority, often at personal cost.
North-West University (South-Africa)
2022
Thesis
en
https://orcid.org/0000-0002-2192-5470
http://hdl.handle.net/123456789/40771
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40771/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40771/3/40423492%20Briix%20SD.pdf
07f341d7fb1dd99f13b2bb70062a6516
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40771/4/40423492%20Briix%20SD.pdf.txt
c37cde4760fabef3bc5c6842417bf4ae
Leadership
Greatness
Success
Authority
Influence
Power
Humility
Status
Servant leadership
oai:repository.nwu.ac.za:123456789/408412023-04-14T01:03:43Zcom_10394_26463col_10394_26478
Agro-morphological and genetic characterization of advanced potato (Solanum tuberosum L.) breeding lines in Mahikeng, South Africa
Sambo, Zinhle Charlotte
Mavengahama, S.
Matsaunyane, L.
One of the most important strategies for increasing crop productivity and improvement in potato yield output is the development and introduction of new cultivars. Phenotypic characteristics are the first aspects to consider in crop improvement and breeding as it demonstrates the relationship among genotypes. The study aimed to characterize advanced potato breeding lines (genotypes) using agronomic and morphological traits under Mahikeng growing conditions. Thirty-three potato genotypes obtained from the ARC-VIMP breeding programme were evaluated for agronomic and morphological traits under field conditions using a randomized complete block design with three replications across two seasons. The genotypes were planted during the 2019/2020 and 2020/2021 summer cropping seasons. Data were collected on 15 quantitative traits. The analysis of variance for 12 of the traits revealed a highly significant (P<0.0001) differences among the genotypes and it was not significant for 3 traits. Relatively high genotypic and phenotypic variance values were obtained for emergence percentage, plant height, number of leaves, leaf area, chlorophyll content, individual tuber weight and yield per plant. Plant height, number of leaves, branches and tubers, stem diameter, chlorophyll content, individual tuber weight, tuber length and yield per plant had a heritability of more than 80%. For the morpho-agronomic characters evaluated, cluster analysis revealed that there was variability among the 33 potato genotypes. The genotypes were classified into three primary clusters. Each cluster was subdivided into two sub-clusters: 1 and 2. The grouping helped to identify genotypes that share the same characteristics and that are closely related. Plant height, the number of stems, stem diameter and individual tuber weight had a strong positive correlation with the yield per plant. The first five principal components explained 71.21% of the variation, indicating that there are significant genetic differences between the genotypes which can be utilized for breeding purposes to improve these features.
Characteristics such as tuber shape, size and colour are important for the fresh market and are the key factors considered for the processing industry. The genotypes exhibited high diversity in growth habit, leaf texture, tuber shape, tuber colour, flesh colour, tuber distribution and tuber eye depth. The growth habit was placed into three groups, erect (21.2%), semi-erect (45.5%) and spread (21.2%). There was a wide
variation in leaf texture, 3% was coarse- hairy, 3% was smooth/glossy, 12.1% was fine and hairy, 30.3% were fine and 51.5% were coarse. Tuber shape also showed wide variation as 3% was compressed-oblong, 6.1% was oblong, 6.1% long-oblong, 9.1% was round, 12.1% was obovate, 15.2% was compressed and 48.5% was elliptic. Genotypes showed variation in tuber colour, 6.1% was slightly dark cream, 15.2% dark cream, 39.4% was cream and 39.4% was light cream. Flesh colour also showed high variation, 3% was light cream, 6.1% was dark cream, 9.1% was yellow, 24.2% was white, 24.2% was light yellow and 33.3% was cream. There was a slight variation in tuber distribution with 12.1% being evenly distributed and 87.9% predominantly apical. Tuber eye depth showed moderate variation, 3% was deep, 24.2% were medium, 36.4% were protruding and 36.4% were shallow. The genotypes studied showed a great genetic variability which can be considered for crop improvement and breeding.
North-West University (South Africa)
2022
Thesis
en
https://orcid.org/0000-0003-0294-2723
http://hdl.handle.net/123456789/40841
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40841/1/Sambo%20ZC.pdf
c42d1eac3795f8c52151a4670f299fb3
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40841/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://v-des-dev-lnx1.nwu.ac.za/bitstream/123456789/40841/3/Sambo%20ZC.pdf.txt
098ed67ab61daff275045074bd1787a4
Agronomic
Breeding
Characterization
Genotype
Morphological
Potato
oai:repository.nwu.ac.za:10394/92102018-03-01T13:33:34Zcom_10394_26463col_10394_26479
Christosentriese prediking in die AP Kerk : 'n prakties–teologiese studie
Strauss, Hendrik Schalk Willem
Bosman, J.
De Wet, F.W.
Christocentric preaching in the AP Church – a practical theological study, is a dissertation wherein Christocentric preaching from the patriarchal narratives by AP Church preachers, is being investigated to determine to what extend it complies with the basic principles of Christocentric preaching. This research found that the preaching from the patriarchal narratives by participating preachers of the AP Church, does not truly answer to the basic principles of Christocentric preaching. A clearly defined Christocentric approach which set out the basic principles for responsible Christocentric preaching, would improve the Christocentricity of Old Testament preaching, more specifically the patriarchal narratives, in the AP Church. A modified version of Osmers’ practical-theological model was utilized as method of research. It entails hermeneutical and normative, empirical and interpretative, as well as strategic aspects. The following goals are set for the study: Hermeneutical and normative i) To determine perspectives from Scripture for the research concept Christocentric preaching regarding passages from Genesis 12-50. Empirical and interpretative ii) To determine to what extend sermons in the AP Church based on passages from Genesis 12-50, are truly Christocentric. iii) To determine to what extend preachers of the AP Church consciously make use of a base theory regarding Christocentric preaching when preaching on passages from Genesis 12-50. Strategically To provide effective, yet Biblical guidelines for Christocentric preaching on passages from Genesis 12-50. In order to reach the above mentioned goals, the following aspects are discussed in the course of the study: Perspectives from Scripture for the research concept Christocentric preaching are determined by, among others, illuminating the unique nature and specific characteristics of the Hebrew narrative. The focus on the hermeneutical challenge offers perspectives on decisive considerations when handling Scripture, an exegetical method conducive to Christocentric preaching, as well as perspectives on a meaningful transition to Christ from the Old Testament text. The focus on the homiletic challenge indicates expository preaching as the most appropriate vehicle for responsible Christocentric preaching. From the hermeneutical and normative perspectives, a certain criteria is derived which served as a guideline for the evaluation of sixteen sermons and devotions by AP Church preachers in order to determine their Christocentricity. Flowing from this, six themes are determined on the basis of which unstructured interviews with five preachers of the AP Church are conducted. These analyses and interviews show the absence of a clearly formulated base theory regarding Christocentric preaching at participating AP Church preachers. Christocentric preaching in the AP Church – a practical theological study offers guidelines for responsible Christocentric preaching from the patriarchal narratives by concentrating on certain points of departure in respect of the Old Testament, key hermeneutical aspects, a meaningful transition from the Old Testament to Christ as well as important homiletic aspects.
North-West University
2012
Thesis
other
http://hdl.handle.net/10394/9210
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9210/1/Strauss_HSW.pdf
42158c2c055e29675170377b759d3f03
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9210/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9210/3/Strauss_HSW.pdf.txt
1ead424c3ae52fff705075c509b9750d
Christosentries
Ou Testament
aartsvaderverhale
Genesis 12-50
prediking
AP-Kerk
homileties
hermeneuties
riglyne
Christocentric
Christ centered
Old Testament
patriarchal narratives
preaching
homiletics
hermeneutics
guidelines
oai:repository.nwu.ac.za:10394/414342023-05-20T01:08:03Zcom_10394_26463col_10394_26473
Social accounting matrice and computable general equilibrium modelling in South Africa with reference to the financial sector
Naudé, Willem Adriaan
Van Heerden, J.H.P.
A significant challenge facing South African economists is the formulation of appropriate
policies to redress the unequal distribution of income and wealth. In many other
developing countries, a similar challenge has led to the use of Social Accounting Matrices
(SAMs) and Computable General Equilibrium (CGE) models to give quantitative support
in the formulation of income redistribution policies. A SAM can be defined as a numerical
representation of the economic cycle with emphasis on income distribution. A CGE model
can be defined as an economy-wide model that includes the interaction between demand,
income and production structure, and where all prices are adjusted until decisions made in
production are consistent with decisions made in demand. SAMs and CGE models are
particularly well suited for analyses of issues such as income redistribution, since they
impart a general equilibrium approach to analyses, as opposed to the traditional partial
equilibrium approach.
A SAM and CGE culture is lacking, however, in South Africa. This is implied by the fact
that almost 35 developing countries already had SAMs before South Africa did, that the
most recent South African SAMs, for the year 1988, are "preliminary" and that
applications of the SAMs are limited. One of the reasons noted for the limited use of the
South African SAMs is their omission of the financial sector. Since South Africa is
characterised by a "first world" economy alongside a "third world" economy, the
interactions between the developed financial sector and the rest of the economy may be
complex. Because these interactions could affect income redistribution policies they
should be taken into account, preferably through a general equilibrium framework.
The primary objective of this study is to contribute towards a suitable framework for
analysing income redistribution and growth in South Africa by extending the present
South African SAMs to include the financial sector. The secondary objective of this study
is to contribute towards establishing a SAM and CGE modelling culture in South Africa.
The primary objective is achieved by illustrating how the national financial accounts can be
rearranged and incorporated into a SAM. This method is used to compile four different
financial SAMs for South Africa. Two financial SAMs are for 1988 and contain only flow
of financial variables, while the other two are for 1990 and contain both initial and end of
the period stocks of financial variables in addition.
The secondary objective is achieved by first tracing the origins and development of SAMs
and CGE models and arguing that SAMs and CGE models are a culmination of
developments on respectively the inductive and deductive sides of economics. Second, the
principles of SAMs are discussed and a basic SAM derived from fundamental economic
principles. It is shown that a SAM represents the economic cycle, and is therefore suitable
to serve as a consistent database for a CGE model. Third, South Africa's existing SAMs
are critically discussed, and the results for income redistribution policies from simple CGE
models based on these SAMs are presented. Fourth, it is shown how the South African
SAMs can be used as a basis for an extended CGE model. Fifth, the SAMs' weakness of
omitting the financial sector is illustrated by discussing the role of the financial sector in an
economy. Special reference is made to the role of the financial sector in developing
countries. This discussion also serves to determine the theoretical foundations of the
national financial accounts and to determine the possible issues that can be investigated
through a financial SAM. Finally a simple CGE model, based on a financial SAM, is used
to investigate income redistribution policy in South Africa. The results are combined and
contrasted with those obtained from CGE models based on the existing South African
SAMs. One contribution made by using a financial SAM is to warn of the danger of
income redistribution policies turning into a "populist" experiment over the short term.
The results also suggest that redistribution in South Africa should be a long-term strategy
that should be accompanied by a better provision of education and a restructuring of the
economy. Indications from the models on the form this restructuring can take are noted.
The most important issues identified as worthy of further research are the (i) construction
of large, multi-sector models based on the financial SAMs; (ii) the provision of a
comprehensive manual on compiling and using SAMs in South Africa; (iii) the compilation
of a SAM for South Africa for 1990 that includes a distinction between rural/urban
households; (iv) the construction of a "structuralist" CGE model for South Africa to be
contrasted with the Walrasian, neo-classical models that were discussed in this study; (v)
the compilation of updated real as well as financial SAMs for different regions in South
Africa; (vi) the use of regional financial SAMs to investigate the effects of a "regional
liquidity reserve" for banks; (vii) the compilation of more accurate data on the stocks of
financial assets and liabilities owned by the major institutions in South Africa; (viii) the
investigation of ways through which liquidity preference in South Africa could be lowered;
and (ix) the investigation of the effects of diminishing the high degree of concentration in
South Africa's financial sector.
It is concluded that although SAMs and CGE models are capable of providing fresh
insights on policy options, they remain auxiliary instruments to assist policy makers, and
cannot replace human ingenuity and compassion in the search for appropriate policies to
redress the unequal distribution of income and wealth in South Africa.
North-West University (South Africa)
1993
Thesis
en
http://hdl.handle.net/10394/41434
https://repository.nwu.ac.za/bitstream/10394/41434/1/Naud%c3%a9_W.A..pdf
d354b744ea6965ba0fdf5a7000be0cf4
https://repository.nwu.ac.za/bitstream/10394/41434/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/41434/3/Naud%c3%a9_W.A..pdf.txt
f9083ec9b2b43ca054fa47662036aabe
oai:repository.nwu.ac.za:10394/120012020-06-29T11:01:02Zcom_10394_26463col_10394_26476
Brain derived neurotrophic factor and structural vascular disease in black Africans : the SABPA study
Smith, Alwyn Johannes
Malan, Leoné
Malan, N.T.
Motivation - Brain-derived neurotrophic factor (BDNF) is a protein complex, synthesised and secreted mainly by the central nervous system and is involved in neuronal maintenance. Research suggests that BDNF is implicated in various neurological and psychiatric diseases, while recent evidence suggests a role for the neurotrophin on the periphery as well. Indeed, the specific functional role of BDNF and its action mechanism in the cardiovascular system, especially in that of Africans, is yet to be determined. The cardiovascular health profile of black South Africans is a major concern as research has shown that this group suffers from an array of cardiovascular risk factors that may result in organ damage. Sub-clinical atherosclerosis or structural endothelial dysfunction contributes to ever-increasing morbidity and mortality in the world. However, no studies regarding the associations between BDNF and structural vascular disease have been undertaken relating to black African participants. Objectives - The objective of this study was to determine whether BDNF is associated with changes in ambulatory blood pressure (BP) and whether a relationship between BDNF and structural endothelial dysfunction exists in black African male and female participants, determined by cross sectional wall area (CSWA) and albumin:creatinine ratio (ACR). Methodology - The study included 172 black African teachers (82 males and 90 females) who were employed by the Kenneth Kaunda Education district of the North-West Province, South Africa. Ambulatory blood pressure recordings were obtained with the use of a Meditech CE120 CardioTens ® apparatus. Blood pressure readings were measured at 30 min intervals during the day and 60 min intervals during the night. Anthropometric measurements were performed in triplicate by registered level II anthropometrists according to standardised procedures. A high-resolution ultrasound scan with carotid intima-media thickness (CIMT) images from at least two optimal angles of the left and right common carotid artery were obtained using a SonoSite Micromaxx ultrasound system. The lumen diameter between the near and far wall of the lumen-intima interface and the averages of both the left and right common carotid arteries were calculated. Subsequently, the carotid cross-sectional wall area (CSWA) was calculated. Participants, who fasted overnight, provided eight-hour blood and urine samples to determine serum BDNF and metabolic markers, for example, hyperglycaemia (HbA1c) and gamma glutamyl transferase (GGT). Urinary albumin and creatinine levels were determined by means of a turbidimetric method with the use of a Unicel DXC 800 analyser from Beckman and Coulter (Germany) and expressed as a ratio between albumin and creatinine (ACR). BDNF median split x Gender interaction effects for structural ED justified stratification of BDNF into low and high (≤ / > 1.37 ng/ml) gender groups. Results and Conclusion - On average, male participants were overweight (BMI (5-30kg/m2) and abused more alcohol.21 African men revealed a vulnerable cardiometabolic profile with values exceeding cut–points (European Society of Hypertension). These men demonstrated increased acute and chronic glucose (HbA1c) levels indicating a pre-diabetic state; as well as a disturbed lipid profile with lower HdL and increased triglycerides. Overall BDNF levels were lower than reference ranges (6.97 – 42.6 ng/ml). The men revealed mean lower BDNF levels, ambulatory BP values exceeding guideline cut-points (ambulatory SBP > 130mmHg; DBP > 80mmHg) as well as a hypertensive state compared to their female counterparts. Pertaining to structural endothelial dysfunction, the mean ACR value in men exceeded normal laboratory values
(< 3.5mg/mmol). The African women displayed an obese state with low grade inflammation (CRP, 12.27 ± 11.67mg/l).
A single two-way ANCOVA interaction on main effects (BDNF median split x Gender) demonstrated significant interaction for CIMTf [F (1,164); 3.99, p=0.05] and cholesterol [F (1,164); 4.12, p=0.05]. Therefore, a median split approach was followed which stratified gender groups into lower (≤ 1.37 ng/ml) and higher BDNF levels (>1.37 ng/ml). The low BDNF men revealed higher cholesterol than the high BDNF group, independent of BMI and age. Only the low BDNF women indicated significantly higher values for structural vascular markers (p< 0.05) than the high BDNF female group.
In conclusion, we accept our hypothesis, as hypertrophic remodelling of the carotid artery was associated with lower BDNF levels. This may imply attenuated or possibly down-regulated BDNF levels acting as a compensatory mechanism for the mean higher BP levels. In women, metabolic risk and hypertrophic remodelling were evident within higher circulating levels of BDNF, underpinning different underlying mechanisms for impaired neurotrophin health in men and women. Novel findings of BDNF revealed the impact of central neural regulation on the circulatory system, which may contribute to cardiometabolic risk in Africans.
2014
Thesis
en
http://hdl.handle.net/10394/12001
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12001/1/Smith_AJ.pdf
80cfe64522a473d174e997abd82501e4
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12001/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/12001/3/Smith_AJ.pdf.txt
03319fca261c967613d78b5f05a54296
Swart Afrikaners
BANF
Bloeddruk
Karotis intima-media dikte
HbA1c
African
Blood pressure
Carotid intima-media thickness
oai:repository.nwu.ac.za:10394/8492020-08-18T10:19:32Zcom_10394_26463col_10394_26473
Coping, stress and suicide ideation in the South African Police Service
Pienaar, Jacobus
Rothmann, S.
A productive and healthy police force is important for the economic growth and stability and the development of a country. In South Africa, various potential stressors, such as a high crime level. organisational transformation and a lack of resources challenge members of the
police services. Increased rates of illness, post-traumatic stress, burnout, alcohol abuse and suicides, as well as decreased levels of job satisfaction and job performance as compared to norms for the general population are found in research with police members. The number of suicides in the South African Police Service (SAPS) is more than five times that of suicide rates reported in the literature for other police populations. Suicide ideation constitutes one aspect of suicidal behaviour. Suicide ideation, which refers to the thoughts and cognitions about suicidal behaviour and intent, may be considered an early marker of more serious suicidal behaviour. However, there is a lack of empirical research systematically
investigating suicide ideation and possible correlates thereof in South Africa. This research investigated the relationship between suicide ideation, stress and coping in the SAPS. The aim of this research was to determine national levels of suicide ideation, stress and coping and the differences between various demographic groups (race, rank, province, language group and size of station). Further aims included the validation of a measure of stress and coping in the SAPS. The research method for each of the four articles consists of a brief literature review and an empirical study. A cross-sectional survey design was used. Random samples (N = 2396 for
research articles 1 and 2, and N = 1431 for research articles 3 and 4) were taken from police stations in nine provinces. Stations were divided into small, medium and large stations. All available police members in small and medium stations were included in the sample, while in
large stations random samples were taken according to sex and race. The Adult Suicide Ideation Questionnaire (ASIQ), Police Stress Inventory (PSI), COPE questionnaire, a measure of social support and a biographical questionnaire were administered. Descriptive and
inferential statistics were used to analyse the data. Results indicated that 8,64% of the sample showed serious levels of suicide ideation. Previous suicide attempts and having previously been charged in terms of the disciplinary
code were significant predictors of current levels of suicide ideation. It was shown that members that scored above the 97th percentile on suicide ideation are Black, from the ranks of sergeant and inspector, and from the Free State and small and medium stations. Concerning the Police Stress Inventory, three internally consistent factors were extracted by means of principal components factor analysis. These factors were Job Demands, Lack of Job Resources and Inherent Police Stressors. Differences regarding stress factors were found
between different ranks, races, language groups, provinces and different-sized stations. A measure of coping was validated in the SAPS. Four factors were extracted, namely Active Coping, Avoidance, Seeking Emotional Support and Turning to Religion. Differences were
shown between the coping strategies of different ranks, races, provinces and according to size of stations. A stepwise discriminant analysis showed that previous suicide attempt, coping strategies (non-active coping, turning to religion and seeking emotional support) and lacking social support (support from psychological services of the SAPS and friends not in the SAPS), marital status, marital satisfaction, scholastic education, job satisfaction, province, race and physical exercise could be used to predict suicide ideation. It is recommended that the SAPS review current suicide prevention programs to ensure their
suitability to all levels of the organisation. The most prominent stressors in need of attention, namely officers not doing their job, poor quality equipment, inadequate salary and seeing criminals go free, were identified and need to be managed by the SAPS. Certain members could benefit from training in effective coping strategies. By way of conclusion, recommendations for future research are made.
Potchefstroom University for Christian Higher Education
2002
Thesis
http://hdl.handle.net/10394/849
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/849/1/pienaar_jacobus.pdf
6ba484c9a4929f664d8fceb831f23d41
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/849/2/license.txt
fda908910f46392a087f6ebd8afe5771
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/849/5/pienaar_jacobus.pdf.txt
28261b7d54237166f3bae5c62c15340a
oai:repository.nwu.ac.za:10394/423182023-11-13T09:41:23Zcom_10394_26463col_10394_26478
Analysis of flow and heat transfer inside different filter designs
Lekoko, Modisawatsona Lucas
Magalakwe, G
This research project’s main purpose is to theoretically investigate internal flow, heat and mass transfer inside different filter designs. The efficiency of filtering methods used to reduce/remove particles deposited in a liquid varies greatly depending on the type of par- ticles, the quality of filter media and filter design. As a result, it is ideal for engineers and scientists to design filters based on mathematical models (scientific evidence) that predict the dynamics of the filters to provide a better understanding of the flow, heat and mass transfer during the filtration process when designing filters. It is vital to have a design that yields optimal balance between the parameters that restrict the particles and allows de- sirable outflow and heat transfer. Pursuing to understand momentum variation, heat and mass transfer during the filtration process. The mathematical models presenting different filter designs under investigation will be formulated using continuity, momentum, concen- tration and energy conservation laws, along with physical laws representing forces that affect the process according to each filter design. The flow and heat transfer models un- der investigation are solved analytical and semi-analytical or numerical in cases where the model(s) could not be solved analytically. The obtained solutions of each model are then used to analyse flow, heat and mass transfer to understand the dynamics of each model and to highlight an optimal design amongst models considered in this research project. The study also aims to study the effects of various parameters in detail according to each filter design to have evidence-based findings that lead to optimal permeate production.
North-West University (South Africa)
2023
Thesis
en
https://orcid.org0000-0002-6723-6048
http://hdl.handle.net/10394/42318
https://repository.nwu.ac.za/bitstream/10394/42318/1/Lekoko_ML..pdf
2261dcb521638b4a98536f204f0446d9
https://repository.nwu.ac.za/bitstream/10394/42318/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/42318/3/Lekoko_ML..pdf.txt
b398400649aa90237390cc799aad781c
Different filter designs
Flow and heat transfer
Analytical and numerical analysis
Steady/Unsteady filtration process
Magnetohydrodynamic fluid
Optimal permeates
oai:repository.nwu.ac.za:10394/22532019-06-26T14:39:10Zcom_10394_26463col_10394_26473
Technostress and work wellness
Van Eck, Marelize
Bosman, J.
Technology in businesses is advancing at a fast and furious pace, and is leaving a trail of
technostress at every level of the organisation. Due to fast-growing technology, computer
professionals, as well as computer users face a great demand for continuous learning in order to
secure and sustain their jobs. If this and other technological demands are not met, employees can
feel inadequate and/or insecure with regard to their jobs, which in turn can leave them
"technostressed”. Major consequences of technostress have been proved to be job insecurity and
burnout, as well as a decrease in work engagement. Computer professionals, as well as computer
users (N = 229) in the Vaal Triangle were targeted for this research. A cross-sectional survey
design was used to reach the research objectives. Six standardised questionnaires were used in
the empirical study, namely the Computer Anxiety Rating Scale (CARS), the Computer
Thoughts Survey (CTS), the General Attitudes Towards Computer Scale (GATCS), the Job
Insecurity Questionnaire (JIQ), the Maslach Burnout Inventory - General Survey (MBI - GS)
and the Utrecht Work Engagement Scale (UWES). The results showed that technostress
(computer thoughts) was related to increased levels of exhaustion and cynicism and decreased
levels of professional efficacy and work engagement. Positive computer thoughts were found to
be inversely related to cognitive and affective job insecurity. Job insecurity partially mediated
the relationships between technostress (computer thoughts) and burnout, as well as technostress
(computer thoughts) and work engagement. Conclusions were made, limitations of the current
research were discussed and recommendations for future research were put forward.
North-West University
2005
Thesis
http://hdl.handle.net/10394/2253
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2253/1/vaneck_marelize.pdf
d9665f9c6ec6161b6a991c1be410ebd7
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2253/2/license.txt
3df893b164f7bd693a1a0e2551a54d51
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2253/7/vaneck_marelize.pdf.txt
3e7d464d4483ed31a22d96226ed95227
Technostress
Job insecurity
Burnout
Work engagement
Work wellness
oai:repository.nwu.ac.za:10394/92772020-11-19T11:58:40Zcom_10394_26463col_10394_26477
An empowerment programme to regain positive work engagement for social workers in the North West Province
Calitz, Taetske Monique
Roux, A.A.
Strydom, H.
The objective of this study is to reclaim positive work engagement for social workers in
North-West province through an empowerment programme addressing the issues
contributing to low job satisfaction, burnout, and job turnover of social workers.
Keywords:
Social work, social workers, group work, programme, empowerment, engagement, job
satisfaction, stress and burnout.
A serious shortage of social workers is experienced in South Africa. One of the reasons
provided is the high turnover rate of social workers; thus social work is classified as a scarce
skill profession. An urgent retention strategy is needed in order to retain social workers for
the profession.
Section A refers to the problem statement, research objectives, research procedures and
research methodology. The keywords as well as the limitations of the research are
investigated. The research was conducted in two phases. In phase one the needs
assessment was implemented and in phase two the planning, implementation, and
evaluation of the empowerment programme.
The problem statement in section A is based on the following:
The working life of social workers is limited and creates a shortage of social workers.
Several factors contribute to this shortage of social workers, including the lack of resources,
and of professional and family support. Undefined roles in social work contributed to lower
job satisfaction and engagement. When social workers are under stress and do not have
sufficient resources they will contemplate job turnover. Research indicates that positive work
engagement can be put back into social work by addressing the factors contributing to job
dissatisfaction, negativity, stress and burnout in the profession. Positive work engagement
may be a protective factor against burnout. This problem statement resulted in the following research goal of reclaiming positive work
engagement for social workers in North-West province through an empowerment programme
addressing the issues contributing to low job satisfaction, burnout, and job turnover of social
workers. It further resulted in the four research aims indicated below:
To determine by means of a literature study what affects the retention of social workers,
with specific focus on stress, burnout, job satisfaction, positive work engagement, and
turnover.
To determine what degree of work engagement and job satisfaction South African social
workers and those in the North-West province experience in their current positions and
how this influences job turnover, burnout and the intention to leave the profession.
To develop and implement an empowerment programme to reclaim positive work
engagement.
To evaluate the effectiveness of an empowerment programme for enhancing the degree
of work engagement social workers experience in their profession.
The Design and Development model (D&D) was implemented. The model consists of six
phases, which all have been used during this study. Quantitative data was mainly utilized.
The literature study focused on factors influencing work engagement, job satisfaction, stress,
burnout and job turnover in general as well as information specifically related to social
workers.
Section B consists of the four articles in which the research goals and research outcomes
are reported. Each article is dealt with as a self-contained unit focusing on specific research
objectives that were achieved via specific research methods. These methods were
employed to collect the necessary data for the design and evaluation of the empowerment
programme.
Article 1
The research goal of this article was to determine what affects the retention of social workers
with specific focus on burnout, job satisfaction, engagement, turnover and job stress by
means of a literature study. An investigation was carried out into the existing literature on
factors influencing work engagement, job satisfaction, and job turnover. Attention was
further given to aspects contributing to stress and burnout and to preventative measures to
address last-mentioned. The results of this research indicated that burnout, via stress, job engagement and job satisfaction, consistently predict intention to leave and thus turnover of
social workers.
Article 2
Social work was classified as a scare skill. The retention of social workers is an important
aspect that needs urgent attention. Before a retention strategy can be put into place a needs
assessment is necessary in order to determine the factors influencing retention.
The research goal of this article was to determine what degree of work engagement and job
satisfaction South African social workers experience in their current positions and how this
influences job turnover, burnout and the intention to leave the profession. In this article the
researcher presented, analysed and interpreted research findings based on responses
provided by 60 social workers from the North-West province. The research questions
focused on job engagement, job satisfaction, burnout and stress social workers experienced
in their current positions. The purpose was to determine the needs social workers
experience that will affect their turnover intention and to establish what is needed to retain
them for the profession.
In this research, Exponential Non-Discriminative Snowball Sampling was applied in order to
identify participants.
The results of this research indicated that the needs/problems social workers experienced
were stress, burnout, lower job satisfaction and engagement. These needs or problems can
be addressed through an empowerment programme. Providing the necessary information,
support and skills training social workers could be empowered and retained for longer
periods for the profession.
Article 3
The research goal of this article was to develop and implement an empowerment programme
to reclaim positive work engagement. The programme was developed after a needs
assessment had been done including sixty (N=60) social workers from the North-West
province. It was completed with a thorough literature study on the related themes. The
result of this research was that the programme was presented to eleven (N=11) social
workers in a two-day workshop consisting of seven sessions. Article 4
The purpose of this article was to evaluate the effectiveness of an empowerment programme
for enhancing work engagement social workers experience in their profession.
This was done through the use of the UWES (Utrecht Work Engagement Scale). This scale
measures the work engagement employees experience. The UWES was used on three
occasions with both the experimental and comparison group. The first measurement was
taken prior to the intervention, the second 32 hours after the intervention and the third a
month after the intervention.
The observations, reflections and process notes of the researcher as facilitator and presenter
were used to evaluate the practical value of the programme as well as to suggest
recommendations for future use. A self-developed evaluation questionnaire was used after
the intervention to afford the experimental group the opportunity of evaluating the value of
the programme.
The results of this research indicated that this empowerment programme for social workers
to regain positive work engagement improved the engagement social workers experienced
and was thus successful. It increased their feelings of dedication as well as vigor and
empowered them to take care of their own well-being in order to counteract turnover and
burnout.
After completion of the research, the programme was also presented to the comparison
group.
In Section C a summary of the findings and conclusions of the research report and some
recommendations are provided.
Section D consists of various addenda such as questionnaires and measuring instruments
that were used.
Section E contained an integrated bibliography.
North-West University
2013
Thesis
en
http://hdl.handle.net/10394/9277
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9277/1/Calitz_TM.pdf
b9ab2d0a23a794956c4857e0fdac2742
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9277/2/license.txt
89636ac25b119fc1c2d7e16dd1c31e1c
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/9277/3/Calitz_TM.pdf.txt
2828930cd9144138f10f745bd23d8428
oai:repository.nwu.ac.za:10394/23902019-06-24T08:36:50Zcom_10394_26463col_10394_26474
A survey of the specific life orientation needs of grade 9 learners
Dalzell, Christine
Theron, L.C. Dr.
Adolescence can be described as a period of heightened vulnerability. The transition between childhood and adulthood encompasses challenges associated with the changes experienced in the various domains of development. Risk and opportunity are associated with adolescence and education with regard to dealing with these aspects of adolescent developmental change is critical.
Life Skills Education promotes the acquisition of appropriate non-academic skills and behaviour that will empower the adolescent to lead a meaningful life. Life Orientation is South Africa's interpretation of Life Skills Education.
This learning area is one of eight within the structure of Curriculum 2005. This study focuses on this specific learning area. The aim of this study was to determine the specific Life Orientation needs of Grade 9 learners and to assess whether the current Life Orientation curriculum meets these needs. The study also set out to establish whether the Life Orientation needs differed according to race and gender. The research consists of a literature and an empirical study. Primary and secondary literature resources, as well as, the Internet, were studied in order to achieve the aims of the study. Information studied was used to design a measuring instrument in the form of a survey. This measuring instrument is statistically valid and reliable. The empirical study was primarily descriptive and quantitative. The sample population comprised of Grade 9 learners from two mainstream English-medium schools in the Vaal Triangle. The findings of this study show that the Life Orientation needs of Grade 9 learners in this sample are largely met by the current curriculum, although a number of deficiencies do exist and recommendations with regard to the relevance of the curriculum have been made. No significant differences between gender and racial groups were found. Furthermore, the Life Orientation needs are practical and future-orientated. These needs reflect the skills required to cope with the socio-economic reality of modern day life in South Africa.
North-West University
2005
Thesis
en
http://hdl.handle.net/10394/2390
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2390/1/dalzell_c.pdf
261fa306c63458823bdc07d8e8854e1e
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2390/2/license.txt
68e726a64508b8b5240c4b73a52547eb
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2390/5/dalzell_c.pdf.txt
191007a500171c74af5ab70fab3c1c05
Adolescence
Domains of development
Heightened vulnerability
Life skills
Life orientation
Life orientation needs
oai:repository.nwu.ac.za:10394/25192018-03-05T05:50:08Zcom_10394_26463col_10394_26475
A study into the fundamental understanding of iron-transformations and the effect of iron as fluxing agent on Highveld fine coal sources during gasification
Prinsloo, Christoffel Bernardus
Waanders, F.B.
Van Dyk, J.C.
Coal, as energy resource, possesses numerous characteristics and properties which all have an influence on its gasification behaviour. The two properties considered critically important when evaluating a coal source for gasification are its mineral content and slagging behaviour. Research has indicated that slag formation can be inhibited or even prevented by the addition of a fluxing agent. It is thus of great importance to understand the mineral interaction during gasification, in order to select a suitable fluxing agent for the prevention of slagging and clinker formation in the gasifier. The aim of this dissertation is to evaluate the slagging properties of a coal source with the addition of iron as a fluxing agent and to study the transformation of the mineral and added iron during gasification. A pre-determined amount of elemental iron (between 2 and 20 percentage by mass) was added to three different coal samples obtained from Sasol's operations in South Africa. The transformation of the iron in conjunction with the possible iron-containing minerals present in the coal was studied by means of Mossbauer spectroscopy. Typical characterisation analyses were also carried out on the original coal samples. The ash fusion temperature analyses (AFT) were used to study the slagging behaviour of the iron-spiked coal samples. Even though AFT analyses only provide an average flow property, it gives a good indication of the changes that the iron addition induces in coal properties. FactSage modelling was carried out in conjunction with the Mossbauer and AFT analyses. The AFT analysis on all of the samples indicated that the iron addition led to a 20% decrease in the AFT of all three the coal samples. The decrease observed, can be attributed to three main reasons: Formation of lower melting iron-containing phases, bridging of oxygen bonds by FeO and Fe203and the lowering of the viscosity by the iron-oxides, mainly hematite.
Mossbauer spectra of the three original coal samples indicated that pyrite was the only iron-bearing mineral present
North-West University
2008
Thesis
http://hdl.handle.net/10394/2519
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2519/1/prinsloo_christoffelb%281%29.pdf
edc1d620a2a9cd525902f137ac011b98
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2519/2/license.txt
d283ce19e1e3c89f47b4a11d8dea7275
https://v-des-dev-lnx1.nwu.ac.za/bitstream/10394/2519/3/prinsloo_christoffelb%281%29.pdf.txt
d0fee188c6f90e7868b0f7716614ab21
Gasification
Mineral transformation
Fluxing agent
Elemental iron
AFT
Mössbauer spectroscopy
FactSage modelling
oai:repository.nwu.ac.za:10394/419912023-08-12T01:07:33Zcom_10394_26463col_10394_26473
A managerial framework to increase sustainable competitive advantage within the beauty industry through Customer Relationship Management
Smit, Lizanne Marquerita
Coetzee, J.C.
This study aims to substantiate that Customer Relationship Management is an emphasising factor in the sustainable competitive advantage of the beauty industry. Only some organisations in the beauty industry use an integrated Customer Relationship system that could empower them to use the data and information in their possession sustainably and efficiently. The primary objective was developed for this reason, and then the secondary objectives that underwrote issues in Customer Relationship Management, sustainable competitive advantage and customer retention were developed.
An empirical study was performed, and a clear depiction of the critical issues of the problem statement was explored. The sample population was compiled within the North West Province of South Africa. A questionnaire was developed based on the objectives, and some functional perspectives were identified and tested. A qualitative study was done, and the sample size was not determined beforehand but was dependent on data saturation. The data saturation was reached after 12 participants.
The results indicated that Customer Relationship Management magnifies value and profit for the organisation. This means sustainable competitive advantage and that CRM can enhance client relations and the ability to measure client satisfaction. This study has shown that using CRM gives beauty salons a competitive edge.
North-West University (South Africa)
2023
Thesis
en
https://orcid.org/0000-0003-3858-3320
http://hdl.handle.net/10394/41991
https://repository.nwu.ac.za/bitstream/10394/41991/1/Smit_LM.pdf
1b3dadad2fdc1325afcb6696dfa35683
https://repository.nwu.ac.za/bitstream/10394/41991/2/license.txt
5bcc9b8c053facba986e0627f3259c0d
https://repository.nwu.ac.za/bitstream/10394/41991/3/Smit_LM.pdf.txt
f63d4aa6c5b730966a66a545754a9783
uketd_dc////100