2024-03-28T19:44:26Zhttps://repository.nwu.ac.za:443/oai/requestoai:repository.nwu.ac.za:10394/147242018-03-02T10:27:42Zcom_10394_26463col_10394_26474
Beukes, Susan Cecilia
2015-10-12T08:23:50Z
2015-10-12T08:23:50Z
2015
http://hdl.handle.net/10394/14724
MEd (Curriculum Development), North-West University, Potchefstroom Campus, 2015
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.
Masters
en
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
Screening for misconceptions and assessing these by using metacognition in a mathematics course for N2 engineering students at a Northern Cape FET college
Thesis
oai:repository.nwu.ac.za:10394/121352018-05-07T09:46:32Zcom_10394_1865col_10394_1866
Gericke, Jaco W.
21609268 - Gericke, Jacobus Wilhelm
2014-11-04T10:28:25Z
2014-11-04T10:28:25Z
2010
Gericke, J.W. 2010.Descriptive varieties of philosophical commentary. Old Testament Essays (new Series), 23(2):261-282. [http://www.scielo.org.za/revistas/ote/iedboard.htm]
1010-9919
http://hdl.handle.net/10394/12135
In this article, the author argues that philosophical criticism as a form of biblical criticism can supplement literary-historical interpretation. Descriptive philosophical analysis has as its primary aim the clarification of meaning, namely understanding - not the justification or critique - of truth-claims. Three forms of functional philosophical commentary are discussed: presupposition reconstruction, conceptual analysis and philosophical translation. The objective is to demonstrate how these varieties of philosophical exegesis aimed at understanding rather than at adjudication are able to reveal dimensions in the text otherwise inaccessible to non-philosophical approaches to the Hebrew Bible.
http://reference.sabinet.co.za/webx/access/electronic_journals/oldtest/oldtest_v23_n2_a3.pdf
en
Department of Biblical and Ancient Studies University of South Africa
Descriptive varieties of philosophical commentary
Article
oai:repository.nwu.ac.za:10394/423462023-11-24T01:12:39Zcom_10394_26463col_10394_26473
Montshiwa, T.V.
Motitswane, Olorato Glendah
22297812 - Montshiwa, Volition Tlhalitshi (Supervisor)
2023-11-23T07:33:24Z
2023-11-23T07:33:24Z
2023
https://orcid.org/0000.0003.3905.1633
http://hdl.handle.net/10394/42346
MCur (Statistics), North-West University, Mahikeng Campus
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.
Masters
en
North-West University (South Africa)
Natural Language Processing
Automatic Speech Recognition
Term Frequency-Inverse Document Frequency Vectorizer
Count Vectorizer
Data Augmentation
Naïve Bayes
Artificial Neural Network
Machine learning and deep learning techniques for natural language processing with application to audio recordings
Thesis
oai:repository.nwu.ac.za:123456789/406792023-03-08T01:04:30Zcom_10394_26463col_10394_26477
Bosch, J.G.S.
Flemming, Magdalena Maria
2023-03-07T10:21:53Z
2023-03-07T10:21:53Z
1993
http://hdl.handle.net/123456789/40679
MA, North-West University, Potchefstroom Campus
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.
Masters
other
North-West University (South Africa)
Kriminogene faktore by 'n groep jeugoortreders
Thesis
oai:repository.nwu.ac.za:10394/152372018-03-05T05:50:09Zcom_10394_26463col_10394_26475
Waanders, F.B.
Fourie, Jethro Paul
2015-11-24T07:16:50Z
2015-11-24T07:16:50Z
2014
http://hdl.handle.net/10394/15237
MSc (Chemical Engineering), North-West University, Potchefstroom Campus, 2015
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.
Masters
en
Design of a primary off-gas scrubber for a ferro-manganese electric arc furnace process
Thesis
oai:repository.nwu.ac.za:10394/420922023-08-24T10:02:09Zcom_10394_26463col_10394_26464
Du Plessis, Anél
Du Plessis, Willemien
Steenkamp, Rochine Melandri
11731958 - Du Plessis, Alida Anél (Supervisor)
10063994 - Du Plessis, Wilhelmina (Supervisor)
2023-08-18T13:01:25Z
2023-08-18T13:01:25Z
2023
https://orcid.org/0000-0003-3380-9087
http://hdl.handle.net/10394/42092
PhD (Perspectives on Law), North-West University, Potchefstroom Campus
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.
Doctoral
en
North-West University (South Africa).
Water security
Local government law
Urban governance
Water law
Environmental law
Climate change
South Africa
Urban water management
City-level law and governance for water security in South Africa
Thesis
oai:repository.nwu.ac.za:10394/177182017-05-15T09:45:52Zcom_10394_1865col_10394_1870col_10394_1872
Malan, Nicolaas T.
Schutte, Aletta E.
Huisman, Hugo W.
Van Rooyen, Johannes M.
Schutte, Rudolph
Mels, Catharina M.
Steyn, Hendrik S.
Smith, Wayne
Fourie, Carla M.
Glyn, Matthew
Malan, Leoné
10056173 - Malan, Nicolaas Theodor
10922180 - Schutte, Aletta Elisabeth
10062718 - Huisman, Hugo Willem
10059539 - Van Rooyen, Johannes Marthinus
12201405 - Schutte, Rudolph
12076341 - Mels, Catharina Martha Cornelia
22419853 - Glyn, Matthew Colin Patrick
10060871 - Malan, Leoné
2016-06-10T07:59:11Z
2016-06-10T07:59:11Z
2013
Malan, N.T. et al. 2013. Low testosterone and hyperkinetic blood pressure responses in a cohort of South African men: the SABPA study. Clinical and experimental hypertension, 35(3):228-235. [http://www.tandfonline.com/toc/iceh20/current]
1064-1963
1525-6006 (Online)
http://hdl.handle.net/10394/17718
http://www.tandfonline.com/doi/full/10.3109/10641963.2012.721839#abstract
http://dx.doi.org/10.3109/10641963.2012.721839
Hypertension (HT) and the metabolic syndrome are major problems in Africa. The role of sex hormones in the cardiovascular profile of black Africans in South Africa has not been studied. Our objective was to study the association between the sex hormones and ambulatory blood pressure and the heart rate (HR) in black and white South Africans. The 24-hour ambulatory blood pressure measurements were performed and the blood samples were taken between 07:00 and 09:00 hours. A total of 80 black and 98 white South African teachers between 25 and 65 years of age from similar socioeconomic backgrounds from the Sympathetic Activity and Ambulatory Blood Pressure in Africans (SABPA) study were included. As a result, a more vulnerable cardiovascular profile was observed in Africans compared with Caucasians. In the African group, low testosterone (T) explained 19%–36% of the variance in systolic blood pressure (SBP), diastolic blood pressure (DBP), and HR, whereas in the Caucasian group non-sex-hormone-binding globulin (non-SHBG)-bound T explained 27% of the variance in HR. In the African males, inverse associations between blood pressure and T (SBP: P = .08; DBP: P = .02) and non-SHBG-bound T (SBP: P < .001; DBP: P < .01) and HR (P < 0.01) were observed. Ambulatory HR predicted a prediabetic state in Africans. In conclusion, low T levels may predispose or result in impaired cardiovascular function in African men. The possibility exists that a prediabetic state, vagal-impaired HR, and hyperkinetic blood pressure responses may predispose or result in low T levels in African men
en
Taylor & Francis
Africans
HbA1C
sex hormones
blood pressure
heart rate
sympathetic activity
Low testosterone and hyperkinetic blood pressure responses in a cohort of South African men: the SABPA study
Article
oai:repository.nwu.ac.za:10394/81392018-03-02T10:27:43Zcom_10394_26463col_10394_26474
Sprang, Zelbia
2013-02-07T12:43:43Z
2013-02-07T12:43:43Z
2001
http://hdl.handle.net/10394/8139
Thesis (M.Ed.)--Potchefstroom University for Christian Higher Education, 2001
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.
Masters
en
Potchefstroom University for Christian Higher Education
The influence of a learning strategies programme on low achieving black secondary school students' academic achievement
Thesis
oai:repository.nwu.ac.za:10394/6642018-05-16T06:04:29Zcom_10394_26463col_10394_26479
Lotter, G.A.
Erasmus, Margaretha Magdalena
2009-02-11T14:25:38Z
2009-02-11T14:25:38Z
2004
http://hdl.handle.net/10394/664
Thesis (M.A. (Pastoral))--North-West University, Potchefstroom Campus, 2005.
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.
Masters
North-West University
Emotions
Oneness
Leaving of parents
Living with your wife
Becoming one flesh
Emosionele eenwording by pasgetroudes : 'n pastorale studie
Thesis
oai:repository.nwu.ac.za:10394/116532019-06-24T09:03:26Zcom_10394_1865col_10394_1873
Van Rooy, H.F.
10058052 - Van Rooy, Herculaas Frederik
2014-10-14T12:44:18Z
2014-10-14T12:44:18Z
http://dx.doi.org/10.4102/koers.v55i1-4.950
http://www.koersjournal.org.za/index.php/koers/article/viewFile/950/1060
1990
Van Rooy, H.F. 1990. Die Pasga en sy boodskap in die tyd van die Ou Testament. Koers, 55:5-16. [www.koersjournal.org.za]
0259-0131
http://hdl.handle.net/10394/11653
Passover and its message in Old Testament times.
In this article the Passover and its message in Old Testament times are discussed, with special reference to the message of the Passover in Exodus 12; during the reform of King Josiah of Judah; the message of the Passover as celebrated by the exiles returning from Babylonia; and the message of the Passover for the people for whom the Chronicles were written. The discussion of the message of the Passover in these instances is preceded by a discussion of the references to the Passover in the books of the Old Testament. It is concluded that the Passover only had meaning when linked to repentance and the service of God It served to remind the people of God’s great deeds in the past, such as the exodus from Egypt, and as such it pointed to the possibility of great deeds of deliverance in the future. The Passover had a positive meaning only for believers.
other
AOSIS
Die Pasga en sy boodskap in die tyd van die Ou Testament
Article
oai:repository.nwu.ac.za:10394/80162016-04-28T21:28:10Zcom_10394_1150com_10394_1149col_10394_8009
Terblanche, A
Pienaar, Gerrit
2013-01-31T07:47:30Z
2013-01-31T07:47:30Z
2012
Terblanche, A. & Pienaar, G.J. 2012. Raamwerkwetgewing ter verwesenliking van die reg op toegang tot voldoende voedsel. Potchefstroom electronic law journal (PELJ) = Potchefstroomse elektroniese regsblad (PER), 15(5):229-286 [http://www.nwu.ac.za/p-per/index.html]
1727-3781
http://hdl.handle.net/10394/8016
Various South African government reports list food security as a development
priority. Despite this prioritisation and despite the fact that South Africa is currently
food self-sufficient, ongoing food shortages remain a daily reality for approximately
35 percent of the South African population. The government's commitment to food
security to date of writing this contribution manifests in related policies, strategies,
programmes and sectoral legislation with the focus on food production, distribution,
safety and assistance. A paradigm shift in the international food security debate was
encouraged during 2009, namely to base food security initiatives on the right to
sufficient food. During a 2011 visit to South Africa, the Special Rapporteur for the
Right to Food of the United Nations, accordingly confirmed that a human rightsbased
approach to food security is necessary in the South African legal and policy
framework in order to address the huge disparities in terms of food security
(especially concerning geography, gender and race). A human rights-based
approach to food security will add dimensions of dignity, transparency,
accountability, participation and empowerment to food security initiatives. The
achievement of food security is further seen as the realisation of existing rights,
notably the right of access to sufficient food. The right of access to sufficient food, as
entrenched in section 27(1)(b) of the Constitution of the Republic of South Africa, 1996 will accordingly play a central role within a human rights-based approach to
food security. Section 27(2) of the Constitution of the Republic of South Africa, 1996
qualifies section 27(1)(b) by requiring the state to take reasonable legislative and
other measures, within its available resources, to achieve the progressive realisation
of each of the section 27(1) rights. The South African government's commitment to
food security, as already mentioned, currently manifests in related policies,
strategies and programmes, which initiatives will qualify as other measures as
referred to in section 27(2) mentioned above. This contribution, however, aims to
elucidate the constitutional duty to take reasonable legislative measures as required
by section 27(2) within the wider context of food security. This contribution is more
specifically confined to the ways in which a human rights-based approach to food
security can be accommodated in a proposed framework law as a national legislative
measures. Several underlying and foundational themes are addressed in this
contribution, amongst others: (a) the relationship between food security and the right
of access to sufficient food; (b) food security as a developmental goal; and (c) the
increasing trend to apply a human rights-based approach to development initiatives
in general, but also to food security.
other
Food security
The right to have access to sufficient food
Framework legislation
Human rights-based approach
Development
Raamwerkwetgewing ter verwesenliking van die reg op toegang tot voldoende voedsel
Article
oai:repository.nwu.ac.za:10394/185912020-11-16T07:52:19Zcom_10394_1865col_10394_1872
Teraoka, Hiroki
Ikenaka, Yoshinori
Okamoto, Erika
Kudo, Moe
Nakayama, Shouta M.M.
27878368 - Ikenaka, Yoshinori
2016-09-08T11:02:56Z
2016-09-08T11:02:56Z
2015
Teraoka, H. et al. 2015. Accumulation properties of inorganic mercury and organic mercuryin the red–crownedcrane Grus japonensis in east Hokkaido, Japan. Ecotoxicology and environmental safety, 122:557-564. [https://doi.org/10.1016/j.ecoenv.2015.09.025]
0147–6513
1090–2414 (Online)
http://hdl.handle.net/10394/18591
https://doi.org/10.1016/j.ecoenv.2015.09.025
http://www.sciencedirect.com/science/article/pii/S0147651315301007
The red-crowned (Japanese) crane Grus japonensis is native to east Hokkaido, Japan, in contrast to the East Asia mainland. Previously, we reported that red-crowned cranes in Hokkaido were highly contaminated with mercury in the 1990s and that the contamination rapidly decreased to a moderate level in the 2000s. In the present study, we determined levels of organic mercury (O–Hg) in the liver and kidney of cranes in east Hokkaido in comparison with levels of total mercury (T–Hg). T–Hg levels in the kidneys were higher than those in the livers in adults but not in subadults and juveniles; however, the reverse was the case for O–Hg even for adults. The ratio of O–Hg to T–Hg in both the liver and kidney decreased as T–Hg increased in the three developmental stages. While the ratios of O–Hg to T–Hg in the liver and kidney of adults were significantly lower than those of juveniles, the ratios were similar for adults and juveniles in a lower range of T–Hg. The ratio of selenium (Se) to T–Hg decreased as T–Hg increased in both the liver and kidney, irrespective of stages. Mercury burdens in feathers were about 59% and 67% of the total body burdens for juveniles and adults, respectively. Furthermore, ratios of carbon and nitrogen stable isotopes to T–Hg varied greatly, with no relation to mercury level in the liver. The results suggest slow accumulation of inorganic mercury in the kidney of red-crowned cranes in east Hokkaido, Japan
en
Elsevier
Bird
mercury
metabolism
Accumulation properties of inorganic mercury and organic mercuryin the red-crownedcrane Grus japonensis in east Hokkaido, Japan
Article
oai:repository.nwu.ac.za:10394/146712021-06-07T07:22:44Zcom_10394_1865col_10394_1870
Sweet, Lara
Jerling, Johann
Van Graan, Averalda
10075410 - Jerling, Johann Carl
12843601 - Van Graan, Averalda Eldorine
2015-10-06T08:07:28Z
2015-10-06T08:07:28Z
2013
Sweet, L. et al. 2013. Field-testing of guidance on the appropriate labelling of processed complementary foods for infants and young children in South Africa. Maternal and child nutrition. 9(Suppl1):12-34. [http://onlinelibrary.wiley.com/journal/10.1111/%28ISSN%291740-8709]
1740-8695
1740-8709 (Online)
http://hdl.handle.net/10394/14671
https://pubmed.ncbi.nlm.nih.gov/23167582/
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6860532/
https://doi.org/10.1111/mcn.12019
There is a lack of formal guidance from international normative bodies on the appropriate marketing of processed complementary foods. Such guidance is necessary to protect and promote optimal infant and young child feeding practices. The aim of this study was to field-test, in South Africa, the interim guidance provided by the Maternal, Infant and Young Child Nutrition Working Group's Draft Guide for Marketing Complementary Foods as a potential tool for use by manufacturers and national governments for guiding the appropriate labelling (as a subset of appropriate marketing practices) of complementary foods. This guidance was used to develop a checklist of questions and criteria for each possible answer, which was tested using a comprehensive database of labels from products purchased in South Africa from June to August 2011. One hundred and sixty product labels of 35 manufacturers were analysed, none of which complied with all checklist criteria. Fifty-six (35%) labels did not provide an appropriate age of introduction while 37 (23%) used images of infants appearing younger than 6 months. Nineteen (12%) labels suggested a daily ration too large for a breastfed child, and 32 (20%) potentially promote the manufacturer's infant formula. Only 58 (36%) labels were easy to read. The majority (69% and 92%) of labels provided instructions for safe and appropriate preparation/use and storage, respectively. The Draft Guide for Marketing Complementary Foods was found to be a useful tool for guiding the appropriate labelling of complementary foods, although some changes and additions are recommended to improve understanding, ease of use and to minimise the subjective interpretation of the guidance.
en
Wiley
Complementary food
food labelling
breastfeeding
infant and young child
Field-testing of guidance on the appropriate labelling of processed complementary foods for infants and young children in South Africa
Article
oai:repository.nwu.ac.za:10394/180162017-09-18T10:38:57Zcom_10394_1865col_10394_1870
Neglur, R.
Aucamp, M.
Liebenberg, W.
Grooff, D.
Hosten, E.
11927860 - Aucamp, Marique Elizabeth
10196226 - Liebenberg, Wilna
2016-07-22T10:52:13Z
2016-07-22T10:52:13Z
2016
Neglur, R. et al. 2016. Approximation-based integral versus differential isoconversional approaches to the evaluation of kinetic parameters from thermogravimetry: kinetic analysis of the dehydration of a pharmaceutical hydrate. Journal of thermal analysis and calorimetry, 123:2599-2610. [https://doi.org/10.1007/s10973-016-5244-x]
1388-6150
1588-2926 (Online)
http://hdl.handle.net/10394/18016
https://link.springer.com/article/10.1007%2Fs10973-016-5244-x
https://doi.org/10.1007/s10973-016-5244-x
The relative accuracies of approximation-based
integral versus differential isoconversional approaches for
‘actual’ E determination were investigated on experimental
dehydration data of roxithromycin monohydrate from
thermogravimetric (TG) analysis. The dehydration kinetic
parameters and the relationship to the structural characteristics
of the monohydrate and anhydrate forms from
differential scanning calorimetry (DSC) and single-crystal
X-ray diffractometry (SC-XRD) are also reported. Integral
methods versus the differential Friedman isoconversional
method evaluated E correspondences in both iso- and nonisothermal
TG methods. The reliability in E from Friedman
approached that of estimates from current most accepted
integral isoconversional methods and was even superior to
methods (for non-isothermal studies) that employ an
approximation to the temperature integral (modified Kissinger–
Akahira–Sunose, Senum–Yang fourth degree).
Structural characterization (DSC, SC-XRD) and kinetic
analysis from generalized kinetic master plots concluded
that coordinated water occupied interlinked voids in crystal
structure which may have facilitated the multidimensional
diffusional loss of water upon heating without disruption of
the crystal structure
Nelson Mandela
Metropolitan University (NMMU); National Research Foundation
(NRF)
en
Springer
Roxithromycin
solid-state kinetics
advanced isoconversional
differential Friedman
Approximation-based integral versus differential isoconversional approaches to the evaluation of kinetic parameters from thermogravimetry: kinetic analysis of the dehydration of a pharmaceutical hydrate
Article
oai:repository.nwu.ac.za:10394/92322020-10-21T10:04:08Zcom_10394_26463col_10394_26478
Schoeman, C.B.
Van der Westhuijzen, David Pieter
10277684 - Schoeman, Carel Benjamin (Supervisor)
2013-10-08T08:44:47Z
2013-10-08T08:44:47Z
2013
http://hdl.handle.net/10394/9232
Thesis (MArt et Scien (Urban and Regional Planning))--North-West University, Potchefstroom Campus, 2013.
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
Masters
en
North-West University
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
A critical performance evaluation of the South African Health Facilities Infrastructure Management Programme of 2011/12
Thesis
oai:repository.nwu.ac.za:10394/61722018-05-31T14:07:51Zcom_10394_1865col_10394_1872
Adon, M.
Pienaar, J.
Galy-Lacaux, C.
Yoboué, V.
Delon, C.
10062092 - Pienaar, Jacobus Johannes
2012-02-29T09:52:03Z
2012-02-29T09:52:03Z
2010
Adon, M. et al. 2010. Long term measurements of sulfur dioxide, nitrogen dioxide, ammonia, nitric acid and ozone in Africa using passive samplers. Atmospheric chemistry and physics, 103(7-8):336-342. [https://doi.org/10.5194/acp-10-7467-2010]
0038-2353
1680-7324 (Online)
http://hdl.handle.net/10394/6172
https://doi.org/10.5194/acp-10-7467-2010
https://www.atmos-chem-phys.net/10/7467/2010/acp-10-7467-2010.pdf
In this paper we present the long term monitoring
of ambient gaseous concentrations within the framework of
the IDAF (IGAC-DEBITS-AFRICA) program. This study
proposes for the first time an analysis of long-term inorganic
gas concentrations (1998 to 2007) of SO
2
, NO
2
, HNO
3
, NH
3
and O
3
, determined using passive samplers at seven remote
sites in West and Central Africa. Sites are representative of
several African ecosystems and are located along a transect
from dry savannas-wet savannas-forests with sites at Bani-
zoumbou (Niger), Katibougou and Agoufou (Mali), Djougou
(Benin), Lamto (Cote d’Ivoire), Zoetele (Cameroon) and Bo-
massa (Congo). The strict control of measurement tech-
niques as well as the validation and inter-comparison stud-
ies conducted with the IDAF passive samplers assure the
quality and accuracy of the measurements. For each type
of African ecosystem, the long term data series have been
studied to document the levels of surface gaseous concen-
trations. The seasonal and interannual variability have also
been analyzed as a function of emission source variations.
We compared the measured West and Central African gas
concentrations to results obtained in other parts of the world.
Results show that the annual mean concentrations of NO
2
,
NH
3
, HNO
3
measured in dry savannas are higher than those
measured in wet savannas and forests that have quite simi-
lar concentrations. Annual mean NO
2
concentrations vary
from 0.9
±
0.2 in forests to 2.4
±
0.4 ppb in the dry savan-
nas, NH
3
from 3.9
±
1.4 to 7.4
±
0.8 ppb and HNO
3
from
0.2
±
0.1 to 0.5
±
0.2 ppb. Annual mean O
3
and SO
2
concen-
trations are lower for all ecosystems and range from 4.0
±
0.4
to 14.0
±
2.8 and from 0.3
±
0.1 to 1.0
±
0.2 ppb, respectively.
A focus on the processes involved in gas emissions from dry
savannas is presented in this work, providing explanations
for the high concentrations of all gases measured at the three
dry savannas sites. At these sites, seasonal concentrations
of all gases are higher in the wet season. Conversely, con-
centrations are higher in the dry season in the wet savan-
nas. In forested regions, we measure no significant differ-
ence between wet and dry seasons. This unique database
of long term gases concentrations monitoring is available at:
http://medias.obs-mip.fr/idaf/
en
EGU
Long term measurements of sulfur dioxide, nitrogen dioxide, ammonia, nitric acid and ozone in Africa using passive samplers
oai:repository.nwu.ac.za:10394/61522017-08-29T10:01:32Zcom_10394_1865col_10394_1872
Schöck, F.M.
Busching, I.
De Jager, O.C.
Vorster, M.J.
Eger, P.
13235176 - Büsching, Ingo
10065857 - De Jager, Ocker Cornelis
12792322 - Vorster, Michael Johannes
2012-02-29T09:52:01Z
2012-02-29T09:52:01Z
2010
Schöck, F.M. et al. 2010. Spatially resolved XMM-Newton analysis and a model of the nonthermal emission of MSH 15-52. Astronomy & astrophysics, 515: Article no A109. [https://doi.org/10.1051/0004-6361/201014151]
0004-6361
1432-0746 (Online)
http://hdl.handle.net/10394/6152
https://doi.org/10.1051/0004-6361/201014151
We present an X-ray analysis and a model of the nonthermal emission of the pulsar wind nebula (PWN) MSH 15
−
5
2
. We analyzed
XMM-Newton data to obtain the spatially resolved spectral parameters around the pulsar PSR B1509
−
58. A steepening of the fitted
power-law spectra and decrease in the surface brightness is observed with increasing distance from the pulsar. In the second part of
this paper, we introduce a model for the nonthermal emission, based on assuming the ideal magnetohydrodynamic limit. This model
is used to constrain the parameters of the termination shock and the bulk velocity of the leptons in the PWN. Our model is able to
reproduce the spatial variation of the X-ray spectra. The parameter ranges that we found agree well with the parameter estimates found
by other authors with di
ff
erent approaches. In the last part of this paper, we calculate the inverse Compton emission from our model
and compare it to the emission detected with the HESS telescope system. Our model is able to reproduce the flux level observed with
HESS, but not the spectral shape of the observed TeV
γ
-ray emission
EDP Sciences
X-rays: individuals: MSH15-52
ISM: supernova remnants
ISM: individual objects: MSH15-52
ISM: jets and outflows
Spatially resolved XMM-Newton analysis and a model of the nonthermal emission of MSH 15-52
oai:repository.nwu.ac.za:10394/217562017-05-09T13:24:03Zcom_10394_1865col_10394_1872
Liebenberg, Danica
Piketh, Stuart
Greyling, Telane
Mienie, Charlotte
De Waal, Tania
Van Hamburg, Huib
12775983 - Liebenberg-Weyers, Danica
18002080 - Piketh, Stuart John
10176888 - Van Hamburg, Huibrecht
10067051 - Mienie, Charlotte Maria Susanna
2017-05-09T05:54:17Z
2017-05-09T05:54:17Z
2016
Liebenberg, D. et al. 2016. Culicoides species composition and environmental factors influencing African horse sickness distribution at three sites in Namibia. Acta tropica, 163:70-79. [https://www.journals.elsevier.com/acta-tropica/]
0001-706X
1873-6254 (Online)
http://hdl.handle.net/10394/21756
https://doi.org/10.1016/j.actatropica.2016.07.024
http://www.sciencedirect.com/science/article/pii/S0001706X16303254
African horse sickness (AHS) is one of the most lethal infectious, non-contagious, vector-borne disease of equids. The causative agent, African horse sickness virus (AHSV) is transmitted via Culicoides midges (Diptera: Ceratopogonidae). AHS is endemic to Namibia but detailed studies of Culicoides communities and influencing environmental parameters are limited. This study aims to determine the Culicoides species composition at three different sites and to assess environmental parameters influencing the geographical distribution of AHS in Namibia. Weekly collections of Culicoides were made during the AHS peak season from January to May for 2013 and 2014 using the Onderstepoort 220 V UV-light trap. Out of 397 collections made, 124 collections (3287 Culicoides) were analysed for AHSV presence with RT-qPCR. A total of 295 collections were analysed for total Culicoides (all collected Culicoides individuals) and in 75% of these collections the Culicoides were identified to species level. C. imicola was the dominant species with proportional representation of 29.9%. C. subschultzei, C. exspectator and C. ravus each contribute more than 10% to the species composition. The lowest number of Culicoides was collected at Aus 9980, a total of 21819 at Windhoek and the highest number at Okahandja 47343. AHSV was present at all three sites during 2013 but only in Windhoek and Okahandja during 2014. Multivariate analyses of data from the two year survey indicate the environmental parameters in order of importance for the distribution of AHS in Namibia as precipitation > temperature > clay > relative humidity > NDVI. The implication of these findings is that any precipitation event increases Culicoides numbers significantly. Together with these results the high number of species found of which little is known regarding their vector competence, add to the complexity of the distribution of AHS in Namibia
en
Elsevier
RT-qPCR
Culicoides imicola
Precipitation
Temperature
Culicoides species composition and environmental factors influencing African horse sickness distribution at three sites in Namibia
Article
oai:repository.nwu.ac.za:10394/173782016-05-25T10:26:33Zcom_10394_16025com_10394_1149col_10394_16287
Carstens, Christiaan
2016-05-20T10:46:29Z
2016-05-20T10:46:29Z
2012
Carstens, C. 2012. Complete Gospel Preludes by Bolcom, W. (2012). [CD-besprekings] Vir die Musiekleier. 32: 58-61, Des. [http://dspace.nwu.ac.za/handle/10394/16025]
1999-3412
http://hdl.handle.net/10394/17378
other
Die Suider-Afrikaanse Kerkorrelistevereniging
Bolcom, W. 2012. Complete Gospel Preludes. [CD-bespreking]
Article
oai:repository.nwu.ac.za:10394/121682018-03-20T08:00:39Zcom_10394_1865col_10394_1866
Esté Hefer
20071380 - Hefer, Esté
2014-11-04T12:23:12Z
2014-11-04T12:23:12Z
2013
Hefer, E. 2013. Reading first and second language subtitles: Sesotho viewers reading in Sesotho and English. Southern African linguistics and applied language studies, 31(3):359-373. [http://www.tandfonline.com/toc/rall20/current#.VE35-8mq06A]
1607-3614
1727-9461
http://hdl.handle.net/10394/12168
Subtitling can offer valuable support in multilingual countries by giving people access to materials in the language(s) of their choice. Within the South African context and its known problems with literacy, this article poses the following questions: How useful are second language (L2) English subtitles compared to first language (L1) subtitles, and how effective is the practice of subtitling in South Africa? This study examined the effectiveness of L2 English subtitles by presenting native speakers of Sesotho with a video clip containing L1 Sesotho and L2 English subtitles while monitoring their eye movements. The hypothesis was that there would be a difference in L1 and L2 subtitle reading in terms of processing. Statistically significant differences were found, but they were more extensive than anticipated. Participants were unable to finish reading the L1 Sesotho subtitles within the given display time, whereas the L2 English subtitles were read with seemingly more ease. However, their reading of the L2 English subtitles was still not optimal. The findings point towards literacy as an important problem – many South Africans do not possess the reading skills to interact with written materials offered by the media. This exacerbates challenges related to subtitling in South Africa. If people are unable to read the subtitles presented to them on television, subtitling is failing its purpose to facilitate the communication of information.
http://dx.doi.org/10.2989/16073614.2013.837610
http://www.tandfonline.com/doi/pdf/10.2989/16073614.2013.837610
en
Taylor & Francis/Routledge/NISC
Reading first and second language subtitles: Sesotho viewers reading in Sesotho and English
Article
oai:repository.nwu.ac.za:10394/100552016-04-28T22:17:38Zcom_10394_3753col_10394_7728
Anoniem
2014-02-04T10:24:27Z
2014-02-04T10:24:27Z
1887
http://hdl.handle.net/10394/10055
other
Kaapstad : Juta
Het Afrikaansche spel- en leesboek, waarin voor Afrikaansche kinderen het spellen en lezen gemakkelijk gemaakt word / Anoniem
Book
oai:repository.nwu.ac.za:10394/267142018-04-16T13:01:31Zcom_10394_1865col_10394_1872
Coetzer, R.L.J.
Joubert, T.S.
Strydom, C.A.
Viljoen, C.L.
Nel, R.J.J.
20682972 - Strydom, Christiena Adriana
2018-04-16T12:34:31Z
2018-04-16T12:34:31Z
2018
Coetzer, R.L.J. et al. 2018. Response surface models for synthetic jet fuel properties. Applied petrochemical research, 8(1):39-53. [https://doi.org/10.1007/s13203-018-0196-7]
2190-5525
2190-5533 (Online)
http://hdl.handle.net/10394/26714
https://doi.org/10.1007/s13203-018-0196-7
https://link.springer.com/article/10.1007/s13203-018-0196-7
Jet fuel is a mixture of different hydrocarbon groups, and the mass contribution of each of these groups toward the overall chemical composition of the fuel dictates the bulk physical properties of the fuel after completion of the refining and blending processes. The fluidity properties of jet fuel mixtures at low temperatures are critical in understanding and mitigating the safety risks and performance attributes of aircraft engines, which may lead to the introduction of more stringent specification limits in the near future. Therefore, in this study the low-temperature viscosity and freeze point properties of jet fuels were investigated by variation of the linear to branched chain paraffin mass ratio, in conjunction with variation of the carbon number distribution according to a mixture by process variables experimental design. Furthermore, response surface models were developed and discussed for the two main fluidity properties of interest and inferences were made from the models for the potential generation of optimal jet fuel mixtures
en
Springer
Freeze point
Mixture experimental designs
Response surface models
Synthetic jet fuel
Viscosity
Response surface models for synthetic jet fuel properties
Article
oai:repository.nwu.ac.za:10394/43712020-08-18T12:26:40Zcom_10394_26463col_10394_26473
Jackson, Leon Prof.
Jackson, Leon
Molefe, Pinkie Dikeletso
2011-08-15T06:40:52Z
2011-08-15T06:40:52Z
2009
http://hdl.handle.net/10394/4371
Thesis (M.B.A.)--North-West University, Vaal Triangle Campus, 2010.
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.
Masters
North-West University
Discrimination and its effects in the electricity industry
Thesis
oai:repository.nwu.ac.za:10394/154802020-11-24T11:24:07Zcom_10394_26463col_10394_26478
Bezuidenhout, C.C.
Flett, B.C.
Bezuidenhout, J.J.
Nienaber, Jesse Jay
12540110 - Bezuidenhout, Cornelius Carlos (Supervisor)
10926542 - Bezuidenhout, Johannes Jacobus (Supervisor)
10675078 - Flett, Bradley Charles (Supervisor)
2015-12-02T12:43:45Z
2015-12-02T12:43:45Z
2015
http://hdl.handle.net/10394/15480
MSc (Environmental Sciences), North-West University, Potchefstroom Campus, 2015
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.
Masters
en
North-West University
Maize
Bacterial leaf streak
Xanthomonas
X. campestris pv. zeae
Pathogenicity tests
SDS-PAGE
Protein profiling
Biolog GN2
Metabolic fingerprinting
Phenotypic and biochemical characterisation of the causal agent of bacterial leaf streak of maize
Thesis
oai:repository.nwu.ac.za:10394/96412018-06-22T12:17:49Zcom_10394_26463col_10394_26476
Hamman, J.H.
Steenekamp, J.H.
Viljoen, A.M.
Chinyemba, Patience
2013-11-29T07:18:04Z
2013-11-29T07:18:04Z
2012
http://hdl.handle.net/10394/9641
Thesis (MSc (Pharmaceutics))--North-West University, Potchefstroom Campus, 2013.
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.
Masters
en
North-West University
Microcrystalline cellulose (Avicel pH101)
Aloe vera
Aloe marlothii
extrusion spheronisation
beads
Use of Aloe vera and Aloe marlothii materials as excipients in beads produced by extrusion–spheronization
Thesis
oai:repository.nwu.ac.za:10394/55692016-04-28T20:57:25Zcom_10394_5126com_10394_1149col_10394_5226
Wasserman, Johan M
2012-02-17T09:36:30Z
2012-02-17T09:36:30Z
2008
Wasserman, J.M. 2008. Die geskiedkundige bewustheid van Afrikaner adolessente. Yesterday & today, 2:109-125, May. [http://www.sashtw.org.za/index2.htm] [http://dspace.nwu.ac.za/handle/10394/5126]
2223-0386
http://hdl.handle.net/10394/5569
From 2006 onwards all learners within the South African educational system would have started school after the fall of Apartheid. During the decade or so that has elapsed since Apartheid ended, South Africans, including Afrikaner adolescents, have experienced the tumultuous changes that followed. Of the changes that took place, two impacted greatly on the former: i) those especially losing their position/s of power and ii) the crumbling of the dominant Afrikaner-Nationalist Historiography which had a tremendous impact on the History studied at school. However, Afrikaner adolescents in schools in the 21st Century have never experienced the positions of power and dominance of the pre-1994 generations, but have merely heard the South African history of how it played itself out. In the light of the above scenario, this article – based on a small-scale survey – examines the Historical Consciousness of Afrikaner adolescents by investigating their views of History and the linkages between the past, present and future.
other
The South African Society for History Teaching (SASHT) under the auspices of the School of Basic Sciences, Vaal Triangle Campus, North-West University
Die geskiedkundige bewustheid van Afrikaner adolessente.
Article
oai:repository.nwu.ac.za:10394/98102020-10-22T10:36:01Zcom_10394_26463col_10394_26478
Goede, R.
Nhlapo, Moleboge Emma
10085971 - Goede, Roelien (Supervisor)
2013-12-19T06:21:58Z
2013-12-19T06:21:58Z
2013
http://hdl.handle.net/10394/9810
Thesis (MSc (Computer Science))--North-West University, Potchefstroom Campus, 2013.
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.
Masters
en
North-West University
Culture
Communication
Intercultural communication
Information system development teams and performance
Kultuur
Kommunikasie
Interkulturele kommunikasie
Inligtingstel ontwikkeling
Inligtingstelsel ontwikkelingspanne en prestasie
Intercultural communication in information systems development teams
Thesis
oai:repository.nwu.ac.za:10394/134382020-09-17T06:15:59Zcom_10394_26463col_10394_26477
Duvenhage, A.
Van den Berg, Matthias Adriaan
10197125 - Duvenhage, André (Supervisor)
2015-02-24T08:08:48Z
2015-02-24T08:08:48Z
2014
http://hdl.handle.net/10394/13438
MA (Political Studies), North-West University, Potchefstroom Campus, 2014
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.
Masters
en
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
The intelligence regime in South Africa (1994-2014) : an analytical perspective
Thesis
oai:repository.nwu.ac.za:10394/418202023-06-20T01:09:47Zcom_10394_26463col_10394_26477
Venter, T.P.
Kotsedi, Segale Shadrack
2023-06-19T13:30:47Z
2023-06-19T13:30:47Z
2001
http://hdl.handle.net/10394/41820
MA (Public Management), North-West University, Potchefstroom Campus
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.
Masters
en
North-West University (South Africa)
The perceptions of the community on community policing at Nkaneng informal settlement
Thesis
oai:repository.nwu.ac.za:10394/121252019-02-01T08:52:27Zcom_10394_10929com_10394_1865col_10394_10936col_10394_1872
Jan W.F. Thirion
Etienne Barnard
Davel, Marelie H.
23607955 - Davel, Marelie Hattingh
21021287 - Barnard, Etienne
2014-11-04T06:04:33Z
2014-11-04T06:04:33Z
2012
Thirion, J.W.F. & Davel, M.H., et al. 2012. Multilingual pronunciations of proper names in a Southern African corpus. Proceedings of the Twenty-Third Annual Symposium of the Pattern Recognition Association of South Africa. Pretoria. p. 102-108. [http://www.prasa.org/]
978-0-620-54601-0
http://hdl.handle.net/10394/12125
We present our process for the development and analysis of a multilingual names corpus, called Multipron-split. It is derived from Multipron, a corpus collected in previous work [1], where names and speakers were drawn from four South African languages, namely Afrikaans, English, isiZulu and Sesotho. The new corpus is more suited for multilingual pronunciation modelling and research as the “words” consist of either a name or surname, rather than a combination of the two. This enables us to model pronunciations from a single language of origin, which has previously been shown to be important in pronunciation modelling for proper names. An algorithm is presented through which the most common pronunciations of names, also called reference pronunciations, can be automatically extracted from the observed pronunciations. We show that the most common pronunciation variants correlate well with the different speaker languages, and that systematic phone substitutions occur when speakers of one language pronounce names from a different language. Also, reasonably accurate automatic pronunciations can be generated with an automatic grapheme-to-phoneme converter, especially when the speaker language agrees with the name language
http://www.prasa.org/index.php/2012-03-07-10-55-15
en
Pattern recognition association of South Africa (PRASA)
Multilingual pronunciations of proper names in a Southern African corpus
Article
oai:repository.nwu.ac.za:123456789/405122023-02-18T01:24:10Zcom_10394_1150com_10394_1149col_10394_39734
Ayinde, Dare J.
2023-02-06T12:58:04Z
2023-02-06T12:58:04Z
2022
Ayinde, D.J. 2023. "An Appraisal of the Legal Framework on Parole in Nigeria" PER / PELJ 2022(25) - DOI https://doi.org/10.17159/1727-3781/2022/v25ia11456. [http://www.nwu.ac.za/p-per/index.html]
1727-3781
http://hdl.handle.net/123456789/40512
https://doi.org/10.17159/1727-3781/2022/v25ia11456
Parole is a new correctional measure in the Nigerian penal system. Before 2015 inmates could be released before the expiration of their terms of imprisonment only if they were granted pardons by the governor of a state or by the president. However, this has changed with the coming into force of the Administration of Criminal Justice Act of 2015 (ACJA). The ACJA empowers courts, upon the recommendation of the comptroller-general of the Nigerian Correctional Service, to release inmates on parole. The ACJA also states the two conditions that the comptroller-general must consider before he recommends inmates for parole. The first condition is that the inmates must be of good behaviour, and the second is that the inmates must have served their non-parole periods. While there is no ambiguity on the first condition, the scope of the second condition is not well stated in the ACJA. The ACJA states that inmates that are sentenced to at least fifteen years or life imprisonment must have served at least one-third of their sentence before they can be recommended for parole. However, the ACJA does not state the minimum period that inmates who are sentenced to less than fifteen years of imprisonment must have served before they can be recommended for parole by the comptroller-general. Second, life imprisonment in Nigeria theoretically means imprisonment for the remaining period of the natural life of the inmates upon whom such a sentence has been imposed. In this light it is not clear how the comptroller-general would calculate one-third of an indeterminate sentence for the purpose of determining when to recommend such inmates for parole. Another notable omission in the ACJA is that it does not state the conditions that courts may attach to the release of inmates on parole. Also, ACJA does not make provision for medical parole. To make parole an effective correctional measure in Nigeria, this article suggests that the ACJA should be amended to address all these weaknesses.
English
en
PER/PELJ
Custodial sentence
Imprisonment
Inmates
Parole
Parolee
Parole proceedings
Rehabilitation
An Appraisal of the Legal Framework on Parole in Nigeria
Article
oai:repository.nwu.ac.za:10394/423022023-11-07T15:19:39Zcom_10394_26463col_10394_26473
Ubisi, S.V.
Masilo, L.M.
Lenyatsa, Kegomoditswe Gloria
33679878 - Ubisi, Salphinah Vuloyimuni (Supervisor)
2023-10-31T07:37:27Z
2023-10-31T07:37:27Z
2023
https://orcid.org/0000-0003-0746-1574
http://hdl.handle.net/10394/42302
MBA, North-West University, Mahikeng Campus
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.
Masters
en
North-West University (South Africa)
Beneficiaries
Caregivers
Child support grant
South African Social Security Agency
Exploration of the child support grant in a community of the North West Province
Thesis
oai:repository.nwu.ac.za:123456789/406972023-03-08T07:57:50Zcom_10394_26463col_10394_26464
Robinson, J.A.
Venter, F.
Haupt, Liezl Caryl
10060537 - Robinson, Jacobus Abraham (Supervisor)
10057358 - Venter, Francois (Supervisor)
2023-03-07T13:37:47Z
2023-03-07T13:37:47Z
1998
http://hdl.handle.net/123456789/40697
LLD, North-West University, Potchefstroom Campus
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.
other
North-West University (South Africa).
Die reg van die kind op oorlewing, ontwikkeling en beskerming
Thesis
oai:repository.nwu.ac.za:10394/413752023-05-11T01:03:53Zcom_10394_26463col_10394_26475
Vosloo, J.C.
Adebayo, Kemi Adunola
12317845 - Vosloo, Jan Corné (Supervisor)
2023-05-10T12:18:27Z
2023-05-10T12:18:27Z
2022
https://orcid.org/0000-0001-8302-8444
http://hdl.handle.net/10394/41375
MEng (Development and Management Engineering), North-West University, Potchefstroom Campus
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.
Masters
en
North-West University (South Africa).
Carbon tax
Greenhouse gas emissions
Phase 2 carbon tax policy
Emissions mitigation
Analysis of future carbon tax scenarios for South African gold mines
Thesis
oai:repository.nwu.ac.za:10394/414382023-05-20T01:08:23Zcom_10394_26463col_10394_26477
Wissing, D.P.
Combrink, A.L.
Nelson, Maria Elizabeth
10171347 - Wissing, Daniel Petrus (Supervisor)
2023-05-19T12:00:54Z
2023-05-19T12:00:54Z
1991
http://hdl.handle.net/10394/41438
DLit (Toegepaste Linguistiek), North-West University, Potchefstroom Campus
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.
Doctoral
other
North-West University (South Africa)
'Ze willen grieven eten'-- teorie en praktyk van die vertaling van 'n Nederlandse kinderboek
Thesis
oai:repository.nwu.ac.za:10394/46622016-04-28T20:54:17Zcom_10394_1150com_10394_1149col_10394_4656
Domingo, W
2011-09-06T10:39:32Z
2011-09-06T10:39:32Z
2011
1727-3781
http://hdl.handle.net/10394/4662
Decisions by primary caregiving parents to relocate after divorce, thereby disrupting the
non–primary caregivers’ right of contact with children or, where both parents have joint
care, the denial of the other’s parental rights and responsibilities to care, give rise to
cases which deal with relocation disputes. My paper deals with the development of
South African family jurisprudence in this area. Since the Children’s Act does not
provide any criteria for cases dealing with relocation I examine the different
jurisprudential approaches/trends taken by our courts in dealing with relocation. I pave
the way forward by making the argument that we need a general consistency in
approach by our courts when dealing with relocation disputes. As our society becomes
increasingly mobile, our courts will be faced with more frequent applications for local
and international family relocations. I conclude by making the recommendation that
despite the Children’s Act, we still need “guidelines” or perhaps a “Relocation Act” which
works in tandem with the Children’s Act.
Family relocation
care
contact
best interests of the child
Children?s Act
"For the Sake of the Children": South African Family Relocation Disputes
Article
oai:repository.nwu.ac.za:10394/327682019-06-11T15:07:51Zcom_10394_26463col_10394_26476
Van Zyl, Tertia
Faber, Mieke
Visser, Marina Victorovna
2019-06-11T14:55:16Z
2019-06-11T14:55:16Z
2019
http://orcid.org/0000-0002-6173-0651
http://hdl.handle.net/10394/32768
PhD (Nutrition), North-West University, Potchefstroom Campus, 2019
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
National Research Foundation (NRF)
Nestlé Nutrition Institute Africa (NNIA)
Association of African Universities
Doctoral
en
North-West University (South-Africa). Potchefstroom Campus
Anaemia
Iron deficiency
Nutrient patterns
Dietary diversity
Nutrient density
Diet cost
Primary school children
South Africa
Dietary intake in relation to iron status in 5-12 year old primary school children and estimated cost of a nutrient rich diet
Thesis
oai:repository.nwu.ac.za:10394/86752020-10-20T12:05:10Zcom_10394_26463col_10394_26478
Stander, J.H.
De Waard, Krijn Carlo
12691607 - Stander, Jan Hendrik (Supervisor)
2013-07-22T12:42:41Z
2013-07-22T12:42:41Z
2012
http://hdl.handle.net/10394/8675
Thesis (M. Environmental Management)--North-West University, Potchefstroom Campus, 2013
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.
Masters
en
North-West University
Waste discharge charge system
Point sources
Diffuse sources
GoldSim
Water resources
Gold mining
Waste discharge charge system : the practical implication from a gold mining perspective
Thesis
oai:repository.nwu.ac.za:10394/37562016-04-28T20:47:49Zcom_10394_677col_10394_3752
Kristelike Unie
2010-10-20T05:27:26Z
2010-10-20T05:27:26Z
1927
http://hdl.handle.net/10394/3756
Die Raad van die Potchefstroomse Uniwersiteitskollege en die S.G. Gewetensklousule
Potchefstroom : Weste-Drukkery
Potchefstroomse Universiteit vir Christelike Hoër Onderwys
Die Potchefstroom Uniwersiteitskollege
Book
oai:repository.nwu.ac.za:10394/75012016-04-28T21:31:10Zcom_10394_1865col_10394_1873
Venter, Casper Jan Hendrik
2012-10-16T09:04:47Z
2012-10-16T09:04:47Z
2011
Venter, C.J.H. 2011. Intelligensie op drie vlakke as 'n kernvereiste vir die bedienaar. In die Skriflig, 45(2&3):613-631. [http://www.inluceverbi.org.za]
1018-6441
http://hdl.handle.net/10394/7501
Intelligence on three levels as core requirement for the pastor
In this article the requirement that a pastor should act and behave in an intellectually, emotionally and socially intelligent way is focused on. At the outset of the article intellectual intelligence is discussed metatheoretically. The functioning of the brain, especially of the neocortex, the sub-cortex and the amygdala is outlined as far as intellectual intelligence is concerned. Basistheoretically relevant requirements for being intellectually intelligent are then investigated, in particular relevant requirements for the sound equipment of the pastor as stated in the pastoral epistles. In this respect the following aspects are scrutinised: the requirement that the pastor should have the competence to instruct the congregation from God’s Word, and the requirement that the pastor should have the ability to equip his congregation in an intellectually sound way. In the ensuing part of the article metatheoretical viewpoints on emotional intelligence are outlined. Aspects like the following are indicated and mentioned as these should form part of the pastor’s equipment: the value of a sound self-awareness, a clear perspective on own competencies, a founded self-confidence, self-control, the ability to minister with certain aims in mind, to handle own emotional wounds, and in the last instance, the requirement of insight and how to cope with own emotions. The requirement that the pastor should exercise self-control and the conviction of being called by and cared for by his Sender, God, are included as basistheoretical material. As far as social intelligence is concerned, the following elements are taken into consideration on metatheoretical level: the ability to have an understanding for the situation of someone else and the competence to tune into the feelings of another person. Aspects of the requirement to create relationships, and issues of empathy are investigated and described basis-theoretically. In conclusion practice-theoretical guidelines are formulated for a possible implementation of intellectual, emotional and social intelligence in the ministry of a servant of God.
Intelligensie op drie vlakke as ’n kernvereiste vir die bedienaar
In hierdie artikel word op die vereiste gefokus dat die bedienaar op ’n verstandelik-, emosioneel- en sosiaal-intelligente wyse moet kan optree en handel. Intellektuele intelligensie word aan die begin van die artikel metateoreties bespreek. Die funksionering van die brein word omlyn in sover dit raakvlakke met verstandelike intelligensie het, in besonder die breinfunksies van die neokorteks, die subkorteks en die amigdala. Onder basisteoretiese aspekte word die volgende vereistes uit die pastorale briewe betrek: die vereistes dat die bedienaar bevoegd moet wees om die gemeente uit God se Woord te onderrig en die vereiste dat hy die vermoë moet hê om op ’n verstandige wyse te handel. Vervolgens word metateoretiese aspekte van emosionele intelligensie aangedui, waaronder ’n goeie selfbewussyn, ’n helder beskouing van die eie vermoëns, gefundeerde selfvertroue, selfbeheer, om met doelwitte te kan werk, die hantering van die eie emosionele letsels, en insig in en hantering van die eie emosies. Hierdie vereistes word in die bespreking betrek juis omdat dit deel van die pastor se bedieningswyse raak. As basisteoretiese perspektiewe op emosionele intelligensie is veral die aspekte van empatie en die geborgenheid van die bedienaar betrek. Ten opsigte van sosiale intelligensie is metateoreties gestel dat dit ’n kernvereiste is om ’n ander se situasie te kan verstaan, aan te voel en op die ander person se gevoelens te kan inspeel. Die proses van verhoudingsvorming en die betoon van empatie is op basisteoretiese wyse nagegaan en nader omskryf. Ten slotte is praktykteoretiese riglyne gebied vir die moontlike implementering van verstandelike, emosionele en sosiale intelligensie in die werk en toerusting van ’n dienskneg van God.
http://dx.doi.org/10.4102/ids.v45i2&3.31
other
AOSIS
Emosies: ontleding van
intelligensie: verstandelik, emosioneel, sosiaal
pastorale briewe
selfinsig
toerusting: bedienaar se
Intelligensie op drie vlakke as 'n kernvereiste vir die bedienaar
Article
oai:repository.nwu.ac.za:10394/74822016-04-28T21:56:40Zcom_10394_1865col_10394_1873
De Klerk, Barend Jacobus
2012-10-12T13:25:07Z
2012-10-12T13:25:07Z
2011
De Klerk, B.J. 2011. 'n Aanvullende formulier gefokus op die verhouding tussen Pasga en die nagmaal. In die Skriflig/In luce Verbi, 45(1):77-96. [http://www.inluceverbi.org.za]
1018-6441
http://hdl.handle.net/10394/7482
A supplementary formulary focused on the relation between Passover and Holy Communion
Can a supplementary formulary that especially focuses on the relation between Passover and Holy Communion enrich the celebration of Holy Communion? After an investigation into the course of events during Passover and the two moments Jesus links up with during the institution of Holy Communion, the researcher found that the following aspects can at least add to the meaning and experience of the celebration. During the eating of the bread (at Passover: the bread of sorrow), the participant is guided to think of and experience the sorrow of slavery to sin and to consciously surrender this guilt to Christ. The believer directly receives the assurance of the forgiveness of sins. During the drinking of the cup of thanksgiving the believer experiences the festive joy of redemption and reconciliation, and consequently feels a new beginning breaking through. This urges the believer to purify his/her life from the old sinful habits (the old yeast) as the result and consequence of the celebration of the Communion. The Communion should, due to its unique eschatological perspective (in contradiction to Passover) have the effect that the death of Christ is proclaimed in the daily life of the believer until He comes. An example of such a possible supplementary formulary is included.
Kan ’n aanvullende formulier wat veral fokus op die verhouding tussen Pasga en die nagmaal deelname aan nagmaalsvierings ’n Aanvullende formulier gefokus op die verhouding tussen Pasga en die nagmaalsviering verryk? Nadat die verloop van die Pasga asook die twee momente waarby Jesus by die instelling van die nagmaal aangesluit het, nagegaan is, is bevind dat die volgende aspekte minstens die betekenis en belewing van die viering kan aanvul. By die eet van die brood (Pasga: die brood van smarte) dink en beleef die deelnemer aan die nagmaal die smart van die slawerny van die sonde en gee doelbewus hierdie skuld aan Christus af en ontvang regstreeks die versekering van vergewing van sonde. By die drink van die beker van danksegging beleef die gelowige dat die feesvreugde van verlossing en versoening, dus ’n nuwe begin, ’n deurbraak. Dit vra dat die lewe gesuiwer moet word van die ou sondige gewoontes (die ou suurdeeg) as die resultaat en uitwerking van die viering van die nagmaal. Die nagmaal moet, weens sy unieke eskatologiese perspektief (in teenstelling met die Pasga) die uitwerking hê dat die dood van Christus in die daaglikse lewe verkondig word totdat Hy kom. ’n Voorbeeld van so ’n moontlike aanvullende formulier word ingesluit.
http://dx.doi.org/10.4102/ids.v45i1.6
other
AOSIS
Beker, drink van die
brood, eet van die
formulier, aanvullende
nagmaal
Pasga
'n Aanvullende formulier gefokus op die verhouding tussen Pasga en die nagmaal
Article
oai:repository.nwu.ac.za:10394/99402016-04-28T22:14:11Zcom_10394_2284col_10394_2285
Grobler, Jacobus Johannes
2014-01-16T07:18:54Z
2014-01-16T07:18:54Z
1976
0869904019
http://hdl.handle.net/10394/9940
other
Potchefstroom : PU vir CHO
Wetenskaplike bydraes van die PU vir CHO. Reeks H, Inougurele redes ; nr. 32;
Wiskunde
Wiskunde en werklikheid / Jacobus Johannes Grobler
Other
oai:repository.nwu.ac.za:10394/40042018-03-05T06:17:59Zcom_10394_26463col_10394_26476
Bester, Petra
2011-02-25T08:34:35Z
2011-02-25T08:34:35Z
2008
http://hdl.handle.net/10394/4004
Thesis (Ph.D. (Nursing))--North-West University, Potchefstroom Campus, 2009.
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.
Doctoral
North-West University
Authentic leadership
Social capital
Theory construction
Nursing science
Authentic leadership embedded in a social capital framework : a theory in nursing science
Thesis
oai:repository.nwu.ac.za:10394/410362023-04-29T01:03:42Zcom_10394_8847com_10394_1149col_10394_39711
Isa, Muzakar
Mardalis, Ahmad
2023-04-28T06:32:06Z
2023-04-28T06:32:06Z
2022
Isa, M. & Mardalis, A. 2022. Flood vulnerability and economic valuation of small and medium-sized enterprise owners to enhance sustainability. Jàmbá: Journal of Disaster Risk Studies 14(1), a1306. [http://www.jamba.org.za/index.php/jamba]
1996-1421
2072-845X (Online)
http://hdl.handle.net/10394/41036
https://doi.org/10.4102/jamba.v14i1.1306
Small and medium-sized enterprises (SMEs) play an important role in supporting Indonesia’s
economic growth and provide employment for people. Nevertheless, SMEs are most vulnerable
when there is a flood. Small and medium sized enterprises are worse off especially after the
flood, because they are relatively limited in resources and less resilient. The study aimed at
identifying the vulnerability level to floods and analysing the economic valuation of flood
mitigation. The population in this study were SMEs located in flood-prone areas in Klaten
Regency, Central Java province, Indonesia. This research used a purposive sampling technique
with 152 respondents. Data collection was carried out using a direct interview method to
business actors with the help of a questionnaire. There were two analytical tools used in this
research, including vulnerability index and economic valuation. The results showed that
Klaten Regency is located in the upper area vulnerability category of moderate flood.
The economic valuation of flood mitigation is IDR 100 000 (USD6.99) to IDR 149 999 (USD10.49).
Most SMEs perceive that flood mitigation is the responsibility of the government.
English
en
OASIS
Flood risk
Willingness to pay
Economic valuation
SME’s
Vulnerability
Flood vulnerability and economic valuation of small and medium-sized enterprise owners to enhance sustainability
Article
oai:repository.nwu.ac.za:10394/151732020-08-24T09:53:18Zcom_10394_26463col_10394_26473
Buys, P.W.
De Villiers, Edward James Daniel
10127100 - Buys, Pieter Willem (Supervisor)
2015-11-23T07:54:59Z
2015-11-23T07:54:59Z
2015
http://hdl.handle.net/10394/15173
MBA, North-West University, Potchefstroom Campus, 2015
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.
Masters
en
Mucuna pruriens
Competitive advantage
Velvet beans
Economical legume
Agricultural commodity
The competitive advantage of velvet beans as an economic agricultural commodity
Thesis
oai:repository.nwu.ac.za:10394/117342020-09-16T11:31:58Zcom_10394_26463col_10394_26477
Strydom, C.
Wessels, C.C.
Labuschagne, Lizette
10060456 - Strydom, Corinne (Supervisor)
10063439 - Wessels, Cornelia Cecilia (Supervisor)
2014-10-16T07:16:44Z
2014-10-16T07:16:44Z
2013
http://hdl.handle.net/10394/11734
MSW (Forensic Practice), North-West University, Potchefstroom Campus, 2014
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.
Masters
other
Pre-forensiese evaluering
Forensiese ondersoekproses
Seksuele misbruik van ‘n kind
Pre-forensic evaluation
Forensic evaluation process
Child sexual abuse
Voordele van die pre–forensiese evaluering as deel van die forensiese ondersoekproses rakende seksuele misbruik van 'n kind
Thesis
oai:repository.nwu.ac.za:10394/94162019-03-22T06:15:59Zcom_10394_1865col_10394_1872
Abramowski, A.
Büsching, I.
De Jager, O.C.
Venter, C.
Vorster, M.
H.E.S.S. Collaboration
12006653 - Venter, Christo
13235176 - Büsching, Ingo
10065857 - De Jager, Ocker Cornelis
12792322 - Vorster, Michael Johannes
2013-10-31T10:58:55Z
2013-10-31T10:58:55Z
2012
Abramowski, A. et al. 2012. A multiwavelength view of the flaring state of PKS 2155-304 in 2006. Astronomy & astrophysics, 539: Article no A149. [https://doi.org/10.1051/0004-6361/201117509]
0004-6361
1432-0746 (Online)
http://hdl.handle.net/10394/9416
https://doi.org/10.1051/0004-6361/201117509
http://www.aanda.org/articles/aa/pdf/2012/03/aa17509-11.pdf
Context: Multiwavelength (MWL) observations of the blazar PKS 2155-304 during two weeks in July and August 2006, the period when two exceptional flares at very high energies (VHE, E ≳ 100 GeV) occurred, provide a detailed picture of the evolution of its emission. The complete data set from this campaign is presented, including observations in VHE γ-rays (H.E.S.S.), X-rays (RXTE, Chandra, Swift XRT), optical (Swift UVOT, Bronberg, Watcher, ROTSE), and in the radio band (NRT, HartRAO, ATCA). Optical and radio light curves from 2004 to 2008 are compared to the available VHE data from this period, to put the 2006 campaign into the context of the long-term evolution of the source.
Aims: The data set offers a close view of the evolution of the source on different time scales and yields new insights into the properties of the emission process. The predictions of synchrotron self-Compton (SSC) scenarios are compared to the MWL data, with the aim of describing the dominant features in the data down to the hour time scale.
Methods: The spectral variability in the X-ray and VHE bands is explored and correlations between the integral fluxes at different wavelengths are evaluated. SSC modelling is used to interpret the general trends of the varying spectral energy distribution.
Results: The X-ray and VHE γ-ray emission are correlated during the observed high state of the source, but show no direct connection with longer wavelengths. The long-term flux evolution in the optical and radio bands is found to be correlated and shows that the source reaches a high state at long wavelengths after the occurrence of the VHE flares. Spectral hardening is seen in the Swift XRT data.
Conclusions: The nightly averaged high-energy spectra of the non-flaring nights can be reproduced by a stationary one-zone SSC model, with only small variations in the parameters. The spectral and flux evolution in the high-energy band during the night of the second VHE flare is modelled with multi-zone SSC models, which can provide relatively simple interpretations for the hour time-scale evolution of the high-energy emission, even for such a complex data set. For the first time in this type of source, a clear indication is found for a relation between high activity at high energies and a long-term increase in the low frequency fluxes.
en
EDP Sciences
Galaxies: active
radiation mechanisms: non-thermal
gamma rays: galaxies
BL Lacertae objects: individual: PKS 2155-304
A multiwavelength view of the flaring state of PKS 2155-304 in 2006
Article
oai:repository.nwu.ac.za:10394/109772015-10-20T07:30:17Zcom_10394_1865col_10394_1872oai:repository.nwu.ac.za:10394/191322018-03-19T06:36:05Zcom_10394_1865col_10394_1867
Bumunang, Emmanuel Wihkochombom
Babalola, Olubukola Oluranti
22048219 - Bumunang, Emmanuel Wihkochombom
22392416 - Babalola, Olubukola Oluranti
2016-10-21T13:45:49Z
2016-10-21T13:45:49Z
2014
Bumunang, E.W. & Babalola, O.O. 2014. Characterization of Rhizobacteria from Field Grown Genetically Modified (GM) and Non–GM Maizes. Brazilian Archives Of Biology And Technology, 57(1):1-8. [http://www.scielo.br/scielo.php?script=sci_serial&pid=1516-8913&lng=en&nrm=iso]
http://hdl.handle.net/10394/19132
http://dx.doi.org/10.1590/S1516-89132014000100001
This study was done to examine the rhizobacteria from field grown Genetically Modified (GM) maize and its non-GM counterpart. Rhizospheric soil samples were collected at 30 days after sowing (DAS) and at post-harvest from two experimental fields in Gauteng, South Africa. Total rhizobacteria (cfu/g) in GM and non-GM soil samples was not significantly different across the different media 30 DAS and at post-harvest. Rhizobacterial isolates obtained were biochemically characterized using the analytical profile index. Species of Pseudomonas, Aeromonas, Sphingomonas, Burkholderia, Stenotrophomonas, Achromobacter, Ewingella and Bacillus were screened in vitro for plant growth promoting traits such as, ammonia production, catalase activity, indole acetic acid production, phosphate solubilisation, hydrogen cyanide production and antifungal activity. All the 32 rhizobacterial strains tested in this study were positive for catalase activity, ammonia production and IAA production; 90.6% were positive for phosphate solubilisation, 34.3% for indicate antifungal activity but none for hydrogen cyanide production. These findings contributed to the quest for potential biofertilizers and biocontrol agents for sustainable agriculture.
en
SciELO
Genetically modified maize
Plant growth promoting traits
Rhizosphere
Rhizobacteria
Characterization of Rhizobacteria from Field Grown Genetically Modified (GM) and Non–GM Maizes
Article
oai:repository.nwu.ac.za:10394/49442018-03-14T12:09:56Zcom_10394_26463col_10394_26475
Barnard, E.
Van Huyssteen, G.B.
Van Niekerk, D.R.
Schlünz, Georg Isaac
2011-10-05T13:38:30Z
2011-10-05T13:38:30Z
2010
http://hdl.handle.net/10394/4944
Thesis (M.Sc. Engineering Sciences (Electrical and Electronic Engineering))--North-West University, Potchefstroom Campus, 2011.
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.
Masters
North-West University
part-of-speech tagging
text-to-speech synthesis
resource-scarce language
naturalness
prosody
HTS context labels
The effects of part–of–speech tagging on text–to–speech synthesis for resource–scarce languages
Thesis
oai:repository.nwu.ac.za:10394/424282024-02-21T13:23:31Zcom_10394_26463col_10394_26478
Malherbe, K.A.
Smit, N.J.
van As, L.L.
Ayawei, Precious Preye
25425293 - Malherbe, Kerry Ann (Supervisor)
21250545 - Smit, Nicholas Jacobus (Supervisor)
2024-02-20T13:58:33Z
2024-02-20T13:58:33Z
2023-10
http://orcid.org/0000-0002-7443-1861
http://hdl.handle.net/10394/42428
Doctor of Philosophy in Science with Zoology, North-West University, Potchefstroom Campus
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.
Doctoral
en
North-West University (South Africa)
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
Biodiversity and systematics of parasitic Crustacea infesting southern African freshwater fishes
Thesis
oai:repository.nwu.ac.za:10394/66122016-04-28T21:12:46Zcom_10394_4969com_10394_1149col_10394_6605
Liefferink, Mariette
2012-06-12T12:16:05Z
2012-06-12T12:16:05Z
2011
Liefferink, M. 2011. Assessing the past and the present role of the National Nuclear Regulator as a public protector against potential health injuries: the West and Far West Rand as case study. New Contree : A journal of Historical and Human Sciences for Southern Africa. 62:125-153, Nov. [http://dspace.nwu.ac.za/handle/10394/4969]
0379-9867
http://hdl.handle.net/10394/6612
Recent national and international news media articles and television
programmes, official public domain Government and peer reviewed academic
reports drew the international and national public’s attention to the health risks
and hazards and impacts pertaining to uraniferous waste from the gold mining
industry within the Witwatersrand goldfields and the role of the National
Nuclear Regulator (NNR) in this regard. The Dutch research organizations’
Wise and Somo’s recent report, entitled “Uranium from Africa – mitigation of
uranium impacts on society and environment by industry and governments”
found that that the lack of knowledge within institutions and lack of proper
environmental management systems, both in industry and in the government,
“render South Africa a poor example of environmental and human health
protection….The government is failing.” It is especially the poor, the
disempowered and the vulnerable members of mining communities that bear
the highest risks and impacts. These communities have low adaptive capacity
because of chronic and acute malnutrition and high HIV/Aids percentages.
The World Health Organization (WHO) recently estimated that 34% of all
childhood illness in the world (compared to 24% of all age illness) and 36% of
deaths in children under age 14 are due to modifiable environmental factors.
As with many illnesses, genes may create a loaded gun, but environment
pulls the trigger. However, determining how impacts from gold mining waste
within the West and Far West Rand as part of the Witwatersrand goldfields
influence or determine human health is a challenge. This is due to the social,
cultural and economic conditions (thus their broader well-being status) which
influence the vulnerability of communities, and subsequently their resilience.
The focus of the discussion will relate to this area and the NNR’s role – past
and present – as public health protector in this area per se.
en
School for Basic Sciences, Vaal Triangle Campus, North-West University
National Nuclear Regulator
Far West Rand
Witwatersrand
Gold mining
Environmental pollution
Environmental health
Human health
Assessing the past and the present role of the National Nuclear Regulator as a public protector against potential health injuries: the West and Far West Rand as case study.
Article
oai:repository.nwu.ac.za:10394/411182023-05-02T01:04:08Zcom_10394_26463col_10394_26478
Bahadur, Indra
Masilo, Kgomotso
26297566 - Bahadur, Indra (Supervisor)
2023-05-01T14:09:58Z
2023-05-01T14:09:58Z
2022
https://orcid.org/0000-0002-0400-0732
http://hdl.handle.net/10394/41118
PhD (Chemistry), North-West University, Mahikeng Campus
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. ...
Doctoral
en
North-West University (South Africa)
Ionic liquids
Binary mixture
Ternary mixture
Thermophysical properties
Thermodynamic properties
Modelling
Redlich-Kister polynomial equation
Interaction studies of imidazolium based ionic liquids with organic acids and acetophenone : thermodynamic, spectroscopic, and theoretical approaches
Thesis
oai:repository.nwu.ac.za:10394/138932019-06-24T09:34:39Zcom_10394_1865col_10394_1873
Viljoen, Francois P.
10323309 - Viljoen, Francois Petrus
2015-06-04T13:52:51Z
2015-06-04T13:52:51Z
2013
Viljoen, F.P. 2013. Righteousness and identity formation in the Sermon on the Mount. HTS: Teologiese studies = Theological studies. 69(1):1-10. [http://www.hts.org.za/index.php/HTS]
0259-9422
2072-8050 (Online)
http://hdl.handle.net/10394/13893
Righteousness is an important term in the first gospel and has a significant concentration in
the Sermon on the Mount. The argument in this article is that the first gospel has a community
building function. Matthew intentionally uses the word ‘righteousness’ in the Sermon on
the Mount as an instrument to define the identity of his community. Though righteousness
can be used in a soteriological sense, it is argued that Matthew mainly uses it in an ethical
sense. By righteousness Matthew refers to the proper behavioural norms and attitudes for his
community. Commitment to Jesus forms the central focus of the community’s identity. Their
discipleship is demonstrated by doing the will of God as defined and interpreted by Jesus.
Doing the will of God in such a manner is what Matthew regards as the distinguishing mark
of this community. Thus they would surpass the righteousness of the scribes and Pharisees.
http://www.hts.org.za/index.php/HTS
http://www.hts.org.za/index.php/HTS/issue/view/69
http://dx.doi.org/10.4102/hts.v69i1.1300
en
OASIS
Righteousness and identity formation in the Sermon on the Mount
Article
oai:repository.nwu.ac.za:123456789/407952023-03-24T01:04:14Zcom_10394_26463col_10394_26475
Vosloo, J.C.
Modiba, Malesela
12317845 - Vosloo, Jan Corné (Supervisor)
2023-03-23T13:04:59Z
2023-03-23T13:04:59Z
2022
https://orcid.org/0000-0001-6967-0588
http://hdl.handle.net/123456789/40795
MEng (Mechanical Engineering), North-West University, Potchefstroom Campus
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.
Masters
en
North-West University (South Africa).
Dewatering
Pump efficiency
Continuous
Automatic
Data quality
DA
An automated method to determine dynamic pump efficiencies in deep-level mines
Thesis
oai:repository.nwu.ac.za:10394/6572018-06-20T07:13:18Zcom_10394_26463col_10394_26477
Nienaber, Alida W.
Waldeck, Chantal
2009-02-11T14:22:32Z
2009-02-11T14:22:32Z
2004
http://hdl.handle.net/10394/657
Thesis (M.A. (Clinical Psychology))--North-West University, Potchefstroom Campus, 2005.
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.
Masters
North-West University
Adolescents
Violence
Violent exposure
Coping skills
The development of a programme for the facilitation of coping skills for rural adolescents who have been exposed to community violence
Thesis
oai:repository.nwu.ac.za:10394/142782020-09-17T08:32:04Zcom_10394_26463col_10394_26477
Viljoen, H.M.
Pretorius, R.S.
Zebediela, Malefsane Hannah
2015-08-19T08:25:09Z
2015-08-19T08:25:09Z
2001
http://hdl.handle.net/10394/14278
M.A., African Languages, Potchefstroom University for Christian Higher Education, 2002
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.
Masters
en
Drama
Plays
Stage
Semiotic approach
Performance
Didascalies
Matshediso
Setswana
Sikwane L Z
A structural, semiotic analysis and interpretation of L.Z. Sikwane's play Matshediso, with emphasis on didascalies
Thesis
oai:repository.nwu.ac.za:10394/68102016-04-28T21:20:59Zcom_10394_5126com_10394_1149col_10394_5694
Van Jaarsveld, F A
2012-07-13T06:50:07Z
2012-07-13T06:50:07Z
1991
Van Jaarsveld, F.A. 1991. Hoe bereik geskiedenis ons in die alledaagse lewe?. Yesterday & today = Gister en vandag, 22:14-16, Sep. [http://www.sashtw.org.za/index2.htm] [http://dspace.nwu.ac.za/handle/10394/5126]
2223-0386
http://hdl.handle.net/10394/6810
other
The South African Society of History Teaching
Hoe bereik geskiedenis ons in die alledaagse lewe?
Article
oai:repository.nwu.ac.za:10394/416042023-05-31T01:08:34Zcom_10394_26463col_10394_26473
Saayman, M.
Myburgh, Elsie Maria
10201424 - Saayman, Melville (Supervisor)
2023-05-30T12:34:44Z
2023-05-30T12:34:44Z
2000
http://hdl.handle.net/10394/41604
MA (Toerisme), North-West University, Potchefstroom Campus
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.
Masters
other
North-West University (South Africa)
Wetlands
Tourism
Ecotourism
Sustainable tourism development
Conservation
Environmental economy
Riglyne vir die ontwikkeling van 'n ekotoerisme-attraksie : met spesifieke verwysing na vleilande
Thesis
oai:repository.nwu.ac.za:10394/402072022-11-11T09:28:01Zcom_10394_26463col_10394_26478
Mathuthu, M.
Pete, Gopolang Ashy
24429872 - Mathuthu, Manny (Supervisor)
2022-11-11T08:49:54Z
2022-11-11T08:49:54Z
2018
https://orcid.org/0000-0001-7325-6742
http://hdl.handle.net/10394/40207
MSc (Applied Radiation), North-West University, Mahikeng Campus
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.
Masters
en
North-West University (South Africa)
Characterization of Microbial Survivall in the Presence of Radioactive 14C Spiked Salts in Order to Minimize W,aste from Graphite Moderated Nuclear Reactors
Thesis
oai:repository.nwu.ac.za:10394/132272018-03-05T05:50:05Zcom_10394_26463col_10394_26475
Zaaiman, Hermien Prof.
Ntema, Ratoeba Piet
2015-02-02T14:48:55Z
2015-02-02T14:48:55Z
2014
http://hdl.handle.net/10394/13227
MSc (Computer Science), North-West University, Vaal Triangle Campus, 2014
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.
Masters
en
North West University
Start-ups
Small business
Small and medium enterprises
SME
Project risk management
Project risk mitigation
Serious games
Training tool
Risk
Applying project risk management principles to manage business start-up risk : a proposed training tool
Thesis
oai:repository.nwu.ac.za:10394/414692023-05-23T01:08:23Zcom_10394_26463col_10394_26473
Eloff, T.
Swart, Pierre Jacques
2023-05-22T10:22:54Z
2023-05-22T10:22:54Z
1991
http://hdl.handle.net/10394/41469
MCom (Bedryfs- en Bestuursrekeningkunde), North-West University, Potchefstroom Campus
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. ...
Masters
other
North-West University (South Africa)
Koste-aspekte by terugvulmynbou
Thesis
oai:repository.nwu.ac.za:10394/116882016-04-28T22:30:55Zcom_10394_11619com_10394_1149col_10394_11621
2014-10-15T12:25:29Z
2014-10-15T12:25:29Z
1942
http://hdl.handle.net/10394/11688
other
Kaapstad : Uitgegee deur J.A. Smith, Pro Ecclesia-Drukkery
Die O.B. Jaargang 1, no.27
Other
oai:repository.nwu.ac.za:10394/131892020-08-24T07:22:02Zcom_10394_26463col_10394_26473
Vyas-Doorgapersad, Shikha
Machika, Dimakatjo Mokgaetji
20894252 - Vyas-Doorgapersad, Shikha (Supervisor)
2015-02-02T13:58:01Z
2015-02-02T13:58:01Z
2014
http://hdl.handle.net/10394/13189
MA (Public Management and Administration), North-West University, Vaal Triangle Campus, 2014
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.
Masters
en
North West University
Capacity building
Skills development
Workplace skills development plan
Human resource development
Employee performance
Organisational productivity
Gauteng Department of Education
Capacity building programmes for the skills development of employees at the Gauteng Department of Education
Thesis
oai:repository.nwu.ac.za:10394/34222018-05-16T06:45:01Zcom_10394_1865col_10394_1871
Pienaar, Gerrit
10058176 - Pienaar, Gerrit Johannes
2010-08-04T15:36:52Z
2010-08-04T15:36:52Z
2009
PIENAAR, G. 2009. Regulating communal land rights: The saga continues. Tydskrif vir hedendaagse romeins-hollandse reg = Journal of contemporary Roman-Dutch law, 72(1):1-16, Feb.
1682-4490
http://hdl.handle.net/10394/3422
The regulation off-label drugs is a complicated and controversial area of the law. Regulators must protect patients’ safety without interfering with physicians’ practice of medicine or manufacturers’ First Amendment rights. The recent Neurontin decisions, which apply the doctrine of false claims to prescription drug regulation, only adds additional complexity. This paper explores the federal government’s attempts to regulate the promotion of off-label drugs. It discussed the advantages and disadvantages of off-label marketing, the current regulatory environment, and the implications of the Neurontin lawsuit
LexisNexis Butterworths
Regulating communal land rights: The saga continues
oai:repository.nwu.ac.za:10394/191972020-11-19T12:32:52Zcom_10394_26463col_10394_26478
Beukes, J.P.
Van Zyl P.G.
Dunn, Marcell
10710361 - Van Zyl, Pieter Gideon (Supervisor)
10092390 - Beukes, Johan Paul (Supervisor)
2016-10-26T06:43:13Z
2016-10-26T06:43:13Z
2015
http://hdl.handle.net/10394/19197
MSc (Environmental Sciences), North-West University, Potchefstroom Campus, 2016
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.
Masters
en
North-West University (South Africa)
Vredefort Dome
World heritage site
Air quality
Welgegund
South Africa
Characterisation of air masses passing over the Vredefort Dome world heritage site
Thesis
oai:repository.nwu.ac.za:10394/16282019-06-24T09:35:32Zcom_10394_26463col_10394_26464
Kotzé. L.J.
Stander, L.
Kruger, Erlise
2009-03-16T14:34:54Z
2009-03-16T14:34:54Z
2007
http://hdl.handle.net/10394/1628
Thesis (LL.M. (Import and Export Law))--North-West University, Potchefstroom Campus, 2007.
Masters
North-West University
Insurance for environmental damage : a South African perspective
Thesis
oai:repository.nwu.ac.za:123456789/408462023-04-14T01:03:53Zcom_10394_26463col_10394_26478
M'pika Massoukou, R.Y.
Oukouomi Noutchie, S.C.
Madito, Gladstone Thabo
30375363 - M'pika Massoukou, Rodrigue Y. (Supervisor)
23238917 - Oukouomi Noutchie, Suares Clovis (Supervisor)
2023-04-13T08:17:48Z
2023-04-13T08:17:48Z
2022
https://orcid.org/0000-0001-7733-2087
http://hdl.handle.net/123456789/40846
MSc (Applied Mathematics), North-West University, Mahikeng Campus
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.
Masters
en
North-West University (South Africa)
Age structure
Fractional differential equations
Laplace transform
Lipschitz continuity
Second mean value theorem
Reproduction number
Local asymptotic stability
Age structured population dynamics with applications in epidemiology
Thesis
oai:repository.nwu.ac.za:10394/4892018-03-01T13:33:32Zcom_10394_26463col_10394_26479
Joubert, Pieter
2009-02-11T13:22:21Z
2009-02-11T13:22:21Z
2005
http://hdl.handle.net/10394/489
Thesis (Ph.D. (Pastoral))--North-West University, Potchefstroom Campus, 2005.
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.
Doctoral
North-West University
Client
Counselee
Counseling
Counselor
Dichotomous
Monism
Paradigm
Pastoral
Patient
Psychology
Theology
Therapy
Trichotomous
Trichotomous therapy : a proposed pastoral paradigm
Thesis
oai:repository.nwu.ac.za:10394/58372018-05-23T14:06:42Zcom_10394_1865col_10394_1868
Nel, Carisma
Richter, Barend Wilhelm
Van der Westhuizen, Christoffel Petrus
10071377 - Nel, Carisma
10253955 - Richter, Barend Wilhelm
10130438 - Van der Westhuizen, Christoffel Petrus
2012-02-29T09:48:24Z
2012-02-29T09:48:24Z
2010
Nel, C., Richter, B.W. & Van Der Westhuizen, C.P. 2010. A framework for the integration of DVD technology in geography teaching and learning. Journal of geography in higher education, 34(4):561-580, Nov. [http://www.tandf.co.uk/journals/titles/03098265.asp]
0309-8265
1466-1845 (Online)
http://hdl.handle.net/10394/5837
http://dx.doi.org/10.1080/03098265.2010.498882
Routledge
A framework for the integration of DVD technology in geography teaching and learning
oai:repository.nwu.ac.za:10394/65852016-04-28T21:11:59Zcom_10394_4968com_10394_1149col_10394_5454
Snyman, P H R
2012-05-25T10:21:47Z
2012-05-25T10:21:47Z
1985
Snyman, P.H.R. 1985. Suid-Afrikaanse tydskrif vir kultuurgeskiedenis 1& 2. (1984) [Boek resensie] Contree : Tydskrif vir Suid-Afrikaanse stedelike streekgeskiedenis = Contree : Journal for South African urban and regional history. 17:32, Jan. [http://dspace.nwu.ac.za/handle/10394/4969]
0379-9867
http://hdl.handle.net/10394/6585
other
Afdeling vir Navorsing oor Streek- en Sosio-ekonomiese Geskiedenis van die lnstituut vir Geskiedenisnavorsing, RGN / Division for Research into Regional and Socio-economic History, Institute for Historical Research, HSRC
1984. Suid-Afrikaanse tydskrif vir kultuurgeskiedenis 1& 2. [Boek resensie]
Article
oai:repository.nwu.ac.za:10394/71192016-04-28T21:38:34Zcom_10394_5126com_10394_1149col_10394_5674
Van der Ross, R E
2012-08-28T13:00:10Z
2012-08-28T13:00:10Z
1988
Van der Ross, R.E. 1988. The pen and the sword: seeking a new focus on history and the changing of history in South Africa. Yesterday & today = Gister en vandag, 15:2-5, Apr. [http://www.sashtw.org.za/index2.htm] [http://dspace.nwu.ac.za/handle/10394/5126]
2223-0386
http://hdl.handle.net/10394/7119
en
The South African Society of History Teaching
The pen and the sword: seeking a new focus on history and the changing of history in South Africa.
Article
oai:repository.nwu.ac.za:10394/30342016-04-28T09:34:17Zcom_10394_1865col_10394_1873
Du Plooy, Dries A. le R.
2010-05-17T07:17:38Z
2010-05-17T07:17:38Z
2008
DU PLOOY, D. 2008. Kerkorde en grondwet - in die lig van God se koninkryk. Nederduitse Gereformeerde Teologiese Tydskrif = Dutch Reformed Theological Journal, 49(1 & 2):243-252 [http://www.journals.co.za/ej/ejour_ngtt.html]
0028-2006
http://hdl.handle.net/10394/3034
http://search.sabinet.co.za/WebZ/Authorize?sessionid=0&next=ej/ej_content_ngtt.html&bad=error/authofail.html
Afrikaans
Faculty of Theology, Noordwes Universiteit
Kerkorde en grondwet - in die lig van God se koninkryk
Article
oai:repository.nwu.ac.za:10394/69582018-05-29T09:56:42Zcom_10394_1865col_10394_1872
Jordaan, Anine
Siebert, Stefan John
Struwig, Madeleen
12204145 - Siebert, Stefan John
10202927 - Jordaan, Anine
2012-08-21T08:25:01Z
2012-08-21T08:25:01Z
2011
Jordaan, A., Siebert, S.J. & Struwig, M. 2011. Anatomical adaptations of Boerhavia L. and Commicarpus Standl. (Nyctaginaceae) for survival in arid environments of Namibia. Acta Biologica Cracoviensia Series Botanica, 53(2):50-58. [http://versita.com/abcsb/] [http://www.ib.uj.edu.pl/abc/abc.htm]
0001-5296
1898-0295 (Online)
http://hdl.handle.net/10394/6958
The official publication of the Biological Commission of the Polish Academy of Sciences - Cracow Branch and the Jagiellonian University
Members of the Nyctaginaceae Jussieu. are distributed throughout southern Africa. Eight species of the family occur naturally in arid parts of Namibia. These species have acquired the ability to survive and reproduce in these dry conditions. They are xerophytes, which have been described as drought evaders, avoiders, and drought-tolerant. In the Nyctaginaceae, Boerhavia deserticola, B. hereroensis, Commicarpus helenae and C. squarrosus are thought to be drought avoiders. In this study we investigated their stem, leaf and anthocarp anatomy for adaptations to arid environments. The results indicated that the four species are avoiders, with modifications of the trichomes, secretions, crystals, secondary growth, Kranz esophyll, water storage cells, tannins, mucilage, inner and outer stomatal ledges, large-diameter xylem vessels, and the presence of sclerenchyma in their stems, leaves and anthocarps. These adaptations enable the plants to tolerate arid conditions, conserve water and maintain a high photosynthetic rate, and aid seed dispersal.
occur naturally in arid parts of Namibia. These species have acquired the ability to survive and reproduce in
these dry conditions. They are xerophytes, which have been described as drought evaders, avoiders, and
drought-tolerant. In the Nyctaginaceae, Boerhavia deserticola, B. hereroensis, Commicarpus helenae and
C. squarrosus are thought to be drought avoiders. In this study we investigated their stem, leaf and anthocarp
anatomy for adaptations to arid environments. The results indicated that the four species are avoiders, with
modifications of the trichomes, secretions, crystals, secondary growth, Kranz mesophyll, water storage cells,
tannins, mucilage, inner and outer stomatal ledges, large-diameter xylem vessels, and the presence of sclerenchyma
in their stems, leaves and anthocarps. These adaptations enable the plants to tolerate arid conditions,
conserve water and maintain a high photosynthetic rate, and aid seed dispersal.
http://dx.doi.org/10.2478/v10182-011-0025-0
en
Versita
Adaptations
arid environment
xerophytes
Commicarpus
Namibia
avoiders
Boerhavia
Anatomical adaptations of Boerhavia L. and Commicarpus Standl. (Nyctaginaceae) for survival in arid environments of Namibia
Article
oai:repository.nwu.ac.za:10394/69962016-04-28T21:33:37Zcom_10394_3605com_10394_1149col_10394_3852
Lacroix, Fanny
2012-08-23T11:59:21Z
2012-08-23T11:59:21Z
2006
Lacroix, F. 2006. Deux revues francaises a l'attention des chercheurs interdisciplinaires perspicaces en Afrique du Sud. TD: The Journal for Transdisciplinary Research in Southern Africa, 2(1):212-220, Jul. [http://dspace.nwu.ac.za/handle/10394/3605]
1817-4434
http://hdl.handle.net/10394/6996
fr
Deux revues francaises a l'attention des chercheurs interdisciplinaires perspicaces en Afrique du Sud
Article
oai:repository.nwu.ac.za:10394/417502023-06-15T01:08:24Zcom_10394_26463col_10394_26477
Van den Berg, B.H.J.
Boonzaaier, Ursula
2023-06-14T12:09:30Z
2023-06-14T12:09:30Z
1992
http://hdl.handle.net/10394/41750
MA (Duits), North-West University, Potchefstroom Campus
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.
Masters
other
North-West University (South Africa)
Der aubenseiter in Heinrich Bolls Epischer kunst : eine typologische untersuchung
Thesis
oai:repository.nwu.ac.za:10394/96452018-05-14T08:43:26Zcom_10394_26463col_10394_26476
Pieters, M.
Jerling, J.C.
Rijken, D.C.
De Lange, Zelda
2013-11-29T08:13:07Z
2013-11-29T08:13:07Z
2013
http://hdl.handle.net/10394/9645
Thesis (PhD (Nutrition))--North-West University, Potchefstroom Campus, 2013.
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.
Doctoral
en
North-West University
CVD
PAI-1
fibrinolysis
clot lysis time
polymorphisms
KVS
KLT
fibrinolise
polimorfismes
Global fibrinolytic potential of black South Africans in the North West Province
Thesis
oai:repository.nwu.ac.za:10394/410812023-04-29T01:04:07Zcom_10394_1150com_10394_1149col_10394_39734
Agbor, Avitus A
2023-04-28T12:41:45Z
2023-04-28T12:41:45Z
2022
Agbor, A. 2022. Critical Perspectives on Crimes against Humanity : The Limits of Universal Jurisdiction in the Global South (University of Wales Press 2020) ISBN 1786837021" PER / PELJ 2022(25) - DOI http://dx.doi.org/10.17159/ book by Canefe, N. [http://www.nwu.ac.za/p-per/index.html]
1727-3781
http://hdl.handle.net/10394/41081
http://dx.doi.org/10.17159/1727-3781/2022/v25i0a14988
In the current anti-accountability sentiment that has plagued most of Africa, triggered by the nasty politics of selectivity that is primarily motivated by considerations of realpolitik or the interests of specific states, Canefe's book lays bare the fundamental moral, legal and philosophical standpoint that advances the argument that perpetrators of mass atrocities must be held accountable. Unfortunately, the reality is different. She explores the vast (and almost impossible) impediments to attaining such an objective. Recognising the distinct and persuasive voices echoed by scholars from the Global South, the book examines the utilitarian effectiveness of using universal jurisdiction as a means towards this end. The critical views and responses of scholars who belong to TWAIL (an intellectual blog that is hotly and hardly contested by their counterparts from the Global North) expose, debunk and denounce the legitimacy of international law. The book argues that an international legal order that is largely mono-culturalistic, developed from selected principles, values and opinions from the West, cannot and should not be taken as a prototype of the global legal order. Instead, legal pluralism as a distinct feature of a diverse and multicultural world requires that a consensus is obtained: this is crucial if the world seeks to achieve what she calls a "neutralized universalization" of international law.
English
en
PER/PELJ
Crimes against humanity
Legitimacy
TWAIL
Universal jurisdiction
International law
Canefe, N. 2022. Critical Perspectives on Crimes against Humanity : The Limits of Universal Jurisdiction in the Global South (University of Wales Press 2020) [Book review]
Article
oai:repository.nwu.ac.za:10394/43362020-09-14T12:36:36Zcom_10394_26463col_10394_26477
Fourie, Lynnette
Swanepoel, Thalyta
Boshoff, Catharina Helena
10071474 - Fourie, Lynnette Mitizi (Supervisor)
10523367 - Swanepoel, Thalyta (Supervisor)
2011-07-29T10:58:04Z
2011-07-29T10:58:04Z
2009
http://hdl.handle.net/10394/4336
Thesis (M.A. (Communication Studies))--North-West University, Potchefstroom Campus, 2010.
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.
Masters
North-West University
Developing democracy
Women
Political knowledge
Women's magazines
Media functions
Schema theory
Online evaluation model
Agenda setting
Die aanbieding van politiek as nuusonderwerp in Sarie, Rooi Rose en Fair Lady (1994-2005)
Thesis
oai:repository.nwu.ac.za:10394/137792018-05-10T07:50:50Zcom_10394_1865col_10394_1866
Van Rooy, Bertus
10095519 - Van Rooy, Albertus Jacobus
2015-05-06T08:46:49Z
2015-05-06T08:46:49Z
2011
Van Rooy, A.J. 2011. A principled distinction between error and conventionalized innovation in African Englishes. In: Mukherjee, J. & Hundt, M., et al. Exploring Second-Language Varieties of English and Learner Englishes (pp.189-208). Amsterdam, Philadelphia: John Benjamins Publishing Company
9789027223203
9789027287144
http://hdl.handle.net/10394/13779
A distinction between error and conventionalized innovation is essential to understanding if and how New Varieties of English develop new conventions. This chapter proposes two criteria, grammatical stability and acceptability, to identify conventionalized innovations. It draws on the distinction drawn by Croft (2000) between the narrow process of creating new forms (innovation in the narrow sense) and the subsequent diffusion thereof, which are characterized as individual/psycholinguistic and social respectively. Three features from African Englishes are examined: the so-called extension of the progressive aspect to stative verbs and the use of “can be able to” in Black South African English, as well as the complementation of “enable” with bare infinitive clauses in East African English. The analyses indicate that while these features may have originated as errors due to analogy or overextension of existing patterns, which may also happen in the process of acquiring English as a foreign Language, the context of New Varieties of English is such that stabilization and conventionalization of these innovations may occur. Genuine new linguistic conventions emerge from forms that may have started out as errors.
http://dx.doi.org/10.1075/scl.44.10roo
http://dx.doi.org/10.1075/scl.44
en
John Benjamins publishing company
A principled distinction between error and conventionalized innovation in African Englishes
Book chapter
oai:repository.nwu.ac.za:10394/332422021-06-07T11:54:14Zcom_10394_1865col_10394_1870
Peltzer, Karl
Pengpid, Supa
31568688 - Peltzer, Karl
2019-08-21T06:20:54Z
2019-08-21T06:20:54Z
2019
Peltzer, K. & Pengpid, S. 2019. The use of herbal medicines among chronic disease patients in Thailand: a cross-sectional survey. Journal of multidisciplinary healthcare, 12:573-582. [https://doi.org/10.2147/JMDH.S212953]
1178-2390 (Online)
http://hdl.handle.net/10394/33242
https://pubmed.ncbi.nlm.nih.gov/31413584/
https://doi.org/10.2147/JMDH.S212953
Background: The study aimed to assess the prevalence and correlates of herbal medicine use among chronic disease patients in health care settings in Thailand.
Methods: In a cross-sectional study, 1374 adult chronic disease patients (median age 60 years) were consecutively sampled from health care facilities in Thailand. Logistic regression was used to estimate the independent predictors of herbal medicine use in the past 12 months.
Results: The prevalence of herbal medicine use in the past 12 months was 35.9%. Of participants who were using herbal medicine in the past 12 month, 53.7% used it for treating a long-term health condition, 40.0% used herbal medicine in order to improve well-being and 6.3% for treating an acute illness. More than half of the herbal medicine users (57.2%) rated their herbal medicine use as very helpful, 33.3% as somewhat helpful and 6.5% not at all helpful or do not know. In adjusted logistic regression analysis, having Grade 6 to 12 education (Odds Ratio-OR: 1.71, Confidence Interval-CI: 1.04, 2.82), rural residence (OR: 0.76, CI: 0.60, 0.97), other religion (OR: 0.57, CI: 0.35, 0.97), anxiety (OR: 1.64, CI: 1.25, 2.16), low quality of life (OR: 0.42, CI: 0.31, 0.56) and having multiple chronic conditions (OR: 1.82, CI: 1.30, 2.56) were associated with past 12-month herbal medicine use. Further, in adjusted logistic regression analysis, having arthritis, asthma, cancer, cardiovascular disease, dyslipidaemia, gastrointestinal disease, dyslipidaemia were positively and hypertension negatively associated with past 12-month herbal medicine use.
Conclusions: The study found a high prevalence of herbal medicine use among chronic disease patients in Thailand. Several factors (education, rural residence, anxiety, low quality of life and multiple chronic conditions) associated with herbal medicine use were identified. This knowledge will support health care providers and policy makers in decision making on the use of herbal medicine
en
Dove Medical Press
Herbal medicine
Utilization
Chronic disease patients
Thailand
The use of herbal medicines among chronic disease patients in Thailand: a cross-sectional survey
Article
oai:repository.nwu.ac.za:10394/311252020-12-01T11:39:35Zcom_10394_26463col_10394_26476
De Klerk, W., Dr.
De Klerk, M.
12998699 - De Klerk, Werner (Supervisor)
2018-09-27T07:45:13Z
2018-09-27T07:45:13Z
2018
https://orcid.org/0000-0002-0667-3244
http://hdl.handle.net/10394/31125
MA (Counselling Psychology), North-West University, Potchefstroom Campus
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.
Masters
en
North-West University
Disabilities
inclusive education
full-service schools
educators
empathy
qualitative research
Exploring educators' experiences regarding empathy within inclusive classrooms
Thesis
oai:repository.nwu.ac.za:10394/132082018-03-19T09:27:46Zcom_10394_1865col_10394_1866
Van Eeden, Elize Sonja
2015-02-02T14:22:03Z
2015-02-02T14:22:03Z
2012
Van Eeden, E.S. 2012. Regional, local, urban and rural history as nearby spaces and places: Historiographical and methodological reflections. New Contree, 63:1-34. [ URL ]
http://hdl.handle.net/10394/13208
Regional, local, urban and rural history as nearby spaces and places: Historiographical and methodological reflections
oai:repository.nwu.ac.za:10394/93312019-01-16T14:06:51Zcom_10394_26463col_10394_26474
Monteith, J.L. de K.
Mouton, Jan Frederik
2013-10-21T09:24:50Z
2013-10-21T09:24:50Z
1990
http://hdl.handle.net/10394/9331
Skripsie (MEd)--PU vir CHO, 1991
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.
Masters
other
Potchefstroom University for Christian Higher Education
I.K. as voorspeller van akademiese prestasie
Thesis
oai:repository.nwu.ac.za:10394/188502016-09-26T07:17:54Zcom_10394_1865col_10394_1872
Van Coller, Helga
Siebert, Frances
21074968 - Siebert, Frances
21119465 - Van Coller, Helga
2016-09-20T13:45:05Z
2016-09-20T13:45:05Z
2015
Van Coller, H. & Siebert, F. 2015. Herbaceous biomass species diversity relationships in nutrient hotspots of a semi-arid African riparian ecosystem. African journal of range & forage science, 32(3):213–223. [http://www.nisc.co.za/products/4/journals/african-journal-of-range-and-forage-science]
1022–0119
1727–9380 (Online)
http://hdl.handle.net/10394/18850
http://dx.doi.org/10.2989/10220119.2014.951394
http://www.nisc.co.za/products/abstracts/22825/herbaceous-biomass-species-diversity-relationships-in-nutrient-hotspots-of-a-semi-arid-african-riparian-ecosystem
The hump-back relationship between species diversity and productivity predicts highest species richness at
intermediate levels of biomass, and low species numbers in least and most productive habitats. Sodic patches of
semi-arid savannas are considered ‘nutrient hotspots’ by producing high-quality forage. The impact of biomass
reduction (due to overgrazing) and accumulation (in the absence of herbivores) on herbaceous species richness
and diversity is still unknown for these hotspots. We tested the relationship between biomass and herbaceous
species richness/diversity in savanna sodic sites across varying biomass levels obtained through different
herbivore exclosures. LOWESS and quadratic regression analyses revealed a unimodal species richness/
diversity–biomass relationship for biomass <2 500 kg ha−1. Species richness and diversity in the sodic zone peaked
at 1 300 kg ha−1, followed by a steady decline. At biomass levels exceeding 2 500 kg ha−1, i.e. where herbivores
have been excluded for 10 years, the decline in species richness and diversity stabilised. Despite many debates
surrounding unimodal relationships and the intermediate disturbance hypothesis, this study confirmed a peak
in species richness and diversity at intermediate biomass levels in a herbivory-adapted ecosystem. Herbivores
drive ecosystem heterogeneity and enhance herbaceous species richness and diversity by keeping biomass at
intermediate levels (i.e. <2 500 kg ha−1 for this sodic site)
en
Taylor & Francis + NISC
Fire
herbaceous vegetation
herbivory
sodic patches
unimodal
Herbaceous biomass species diversity relationships in nutrient hotspots of a semi-arid African riparian ecosystem
Article
oai:repository.nwu.ac.za:10394/122662020-11-19T09:25:52Zcom_10394_26463col_10394_26478
Gertenbach, J.D.
Uys, P.E.
23308052 - Gertenbach, Jan Diedeleff (Supervisor)
Van der Walt, Anetta
2014-11-10T09:02:40Z
2014-11-10T09:02:40Z
2014
http://hdl.handle.net/10394/12266
MSc (Applied Mathematics), North-West University, Potchefstroom Campus, 2014
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.
Masters
en
Bloodstain analysis
Fluid mechanics
Multi-target tracking
Linear programming
Dynamic programming
K-shortest path algorithms
Mathematical modelling of blood spatter with optimization and other numerical methods
Thesis
oai:repository.nwu.ac.za:10394/409072023-04-26T01:06:11Zcom_10394_26463col_10394_26477
Krüger, D.W.
Van der Walt, Hendrik Roelof
2023-04-25T12:26:26Z
2023-04-25T12:26:26Z
1961
http://hdl.handle.net/10394/40907
DLitt, North-West University, Potchefstroom Campus
"No abstract"
Doctoral
other
North-West University (South Africa)
Die Suid-Afrikaanse Republiek in die Britse buitelandse en koloniale beleid, 1881-1899
Thesis
oai:repository.nwu.ac.za:123456789/406432023-03-04T01:04:28Zcom_10394_26463col_10394_26473
Theron, N.
De Bruyn, Francois Jacob
2023-03-03T12:11:57Z
2023-03-03T12:11:57Z
2000
http://hdl.handle.net/123456789/40643
MA (Bedryf- en Personeelsielkunde), North-West University, Potchefstroom Campus
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.
Masters
other
North-West University (South Africa)
Assertiveness
Aggressiveness
Non-assertiveness
Assertiveness questionnaire
Validity
Reliability
Paradigm
Die betroubaarheid en geldigheid van 'n assertiwiteitsvraelys vir toesighouers in die goudmynbedryf
Thesis
oai:repository.nwu.ac.za:10394/191152020-08-05T11:25:59Zcom_10394_1865col_10394_1870col_10394_1872
Uys, Madeleine
Dreyer, Walter
Cockeran, Marike
Harvey, Brian H.
Shahid, Mohammed
21102007 - Cockeran, Marike
11083417 - Harvey, Brian Herbert
20951205 - Dreyer, Walter Robert
2016-10-20T12:07:18Z
2016-10-20T12:07:18Z
2016
Uys, M. et al. 2016. The α2C-adrenoceptor antagonist, ORM-10921, has antipsychotic-like effects in social isolation reared rats and bolsters the response to haloperidol. Progress in neuro-psychopharmacology and biological psychiatry, 71:108-116. [https://doi.org/10.1016/j.pnpbp.2016.07.002]
0278-5846
1878-4216 (Online)
http://hdl.handle.net/10394/19115
https://www.sciencedirect.com/science/article/pii/S0278584616301051
https://doi.org/10.1016/j.pnpbp.2016.07.002
Early studies suggest that selective α2C-adrenoceptor (AR)-antagonism has anti-psychotic-like and pro-cognitive properties. However, this has not been demonstrated in an animal model of schizophrenia with a neurodevelopmental construct. The beneficial effects of clozapine in refractory schizophrenia and associated cognitive deficits have, among others, been associated with its α2C-AR modulating activity. Altered brain-derived neurotrophic factor (BDNF) has been linked to schizophrenia and cognitive deficits. We investigated whether the α2C-AR antagonist, ORM-10921, could modulate sensorimotor gating and cognitive deficits, as well as alter striatal BDNF levels in the social isolation reared (SIR) model of schizophrenia, comparing its effects to clozapine and the typical antipsychotic, haloperidol, the latter being devoid of α2C-AR-activity. Moreover, the ability of ORM-10921 to augment the effects of haloperidol on the above parameters was also investigated. Animals received subcutaneous injection of either ORM-10921 (0.01 mg/kg), clozapine (5 mg/kg), haloperidol (0.2 mg/kg), haloperidol (0.2 mg/kg) + ORM-10921 (0.01 mg/kg) or vehicle once daily for 14 days, followed by assessment of novel object recognition (NOR), prepulse inhibition (PPI) of startle response and striatal BDNF levels. SIR significantly attenuated NOR memory as well as PPI, and reduced striatal BDNF levels vs. social controls. Clozapine, ORM-10921 and haloperidol + ORM-10921, but not haloperidol alone, significantly improved SIR-associated deficits in PPI and NOR, with ORM-10921 also significantly improving PPI deficits vs. haloperidol-treated SIR animals. Haloperidol + ORM-10921 significantly reversed reduced striatal BDNF levels in SIR rats. α2C-AR-antagonism improves deficits in cognition and sensorimotor gating in a neurodevelopmental animal model of schizophrenia and bolsters the effects of a typical antipsychotic, supporting a therapeutic role for α2C-AR-antagonism in schizophrenia
en
Elsevier
Isolation rearing animal model
α2C-Adrenoceptor
Typical vs. atypical antipsychotic
Sensorimotor gating
Object recognition memory
Neurodevelopment
The α2C-adrenoceptor antagonist, ORM-10921, has antipsychotic-like effects in social isolation reared rats and bolsters the response to haloperidol
Article
oai:repository.nwu.ac.za:10394/190342021-06-08T11:07:32Zcom_10394_1865col_10394_1870
Van der Vlies, Belinda
Grobler, Herman B.
Denton, Rudy A.
23376600 - Grobler, Hermanus Bosman
2016-10-12T08:56:13Z
2016-10-12T08:56:13Z
2015
Van der Vlies, B. et al 2015. Adolessente se ervaring binne n lesbiese ouerhuis: n Pastorale–Gestaltteoretiese hulpverlening. HTS Teologiese Studies = Theological Studies, 71(3):1-10. [http://dx.doi. org/10.4102/hts.v71i3.2735]
0259-9422
2072-8050 (Online)
http://hdl.handle.net/10394/19034
http://www.scielo.org.za/scielo.php?pid=S0259-94222015000100008&script=sci_abstract&tlng=en
https://hts.org.za/index.php/hts/article/view/2735/5567
The article describes the development of adolescents for a sense of self in a lesbian home," in order to compile guidelines for lesbian parents as well as pastoral counsellors to help "and guide adolescents to develop a healthy sense of self. From the research results, it" appears that there are certain positive and negative aspects of a lesbian home that "influence adolescents sense of self. Where both parents are involved with the adolescents," share household duties equally and have a quality relationship with each other and "the adolescents, the adolescents are generally well–adapted, happy and able to handle" challenges in order to develop a healthy sense of self. The positive influence that Christian religious certainty has on the overall development of the adolescents was also confirmed "by this study. On the other hand, adolescents experience particular aspects as challenging" and impeding in their development of a healthy sense of self: Conflict and criticism from "the companion parents are humiliating and destructive. Stigmatising, teasing and rejection" "from the hetero–normative society, as a result of their parents sexual orientation, appear" "to be the largest obstacles in their psychosocial development. They react in a shy, negative" and evasive way to the stigmatisation and withdraw themselves from situations that could be painful and humiliating. It also appears that the absence of a father figure and financial tension in lesbian families are impeding the adolescents healthy development of a sense of self.
Afrikaans
University of Pretoria HTS
Adolessente se ervaring binne 'n lesbiese ouerhuis: n Pastorale–Gestaltteoretiese hulpverlening
Article
oai:repository.nwu.ac.za:10394/30232016-04-28T09:34:17Zcom_10394_1865col_10394_1872
Van Heerden, Riekert
Philippus, Daniel Riekert
Laurie, Robert
2010-05-14T09:02:34Z
2010-05-14T09:02:34Z
2008
VAN HEERDEN, R., PHILIPPUS, D.R. & LAURIE, R. 2008. Effects of prolonged restriction in water supply on photosynthesis, shoot development and storage root yield in sweet potato. Physiologia plantarum, 134(1):99-109, Sep. [http://www.ingentaconnect.com/content/mksg/ppl]
0031-9317 Online
1399-3054
http://hdl.handle.net/10394/3023
en
Blackwell Publishing Limited
Effects of prolonged restriction in water supply on photosynthesis, shoot development and storage root yield in sweet potato
Article
oai:repository.nwu.ac.za:123456789/403832023-02-18T01:19:48Zcom_10394_26463col_10394_26473
Migiro, S.O.
Sisi, Molebedi Gordon
2023-01-12T11:56:25Z
2023-01-12T11:56:25Z
2009
http://hdl.handle.net/123456789/40383
MBA, North-West University, Mahikeng Campus
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.
Masters
en
North-West University (South Africa)
Small, micro, medium enterprise and black economic empowerment in the construction industry : a case study of Gauteng provincial housing department, south Africa
Thesis
oai:repository.nwu.ac.za:10394/408792023-04-26T01:03:46Zcom_10394_26463col_10394_26474
Scholtz, Izak Petrus
Schutte, B.C.
2023-04-25T08:01:24Z
2023-04-25T08:01:24Z
1973
http://hdl.handle.net/10394/40879
MEd, North-West University, Potchefstroom Campus
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.
Masters
other
North-West University (South Africa).
Die ouer se plek en taak in die opvoeding en onderwys soos geïmplementeer in 'n tipies voorstedelike primêre skool in Transvaal
Thesis
oai:repository.nwu.ac.za:123456789/404492023-02-18T01:16:59Zcom_10394_26463col_10394_26477
Kaya, H.O.
Letsholo, Mpobe Richard
2023-01-18T11:55:49Z
2023-01-18T11:55:49Z
2006
http://hdl.handle.net/123456789/40449
MA (Indigenous Knowledge Systems), North-West University, Mahikeng Campus
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.
Masters
en
North-West University (South Africa)
The role of indigenous healing and medicinal practice in promoting health care delivery service in the Bojanala West Region : the case of Saulspoort Village
Thesis
oai:repository.nwu.ac.za:123456789/408352023-04-12T01:04:24Zcom_10394_26463col_10394_26478
Koitsiwe, M.T.
Mokoma, Seanokeng Alina
16126564 - Koitsiwe, Motheo Thomas (Supervisor)
2023-04-11T13:38:08Z
2023-04-11T13:38:08Z
2022
https://orcid.org/0000-0003-0781-1618
http://hdl.handle.net/123456789/40835
MIKS, North-West University, Mahikeng Campus
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.
Masters
en
North-West University (South Africa)
Indigenous Sayings
Childrearing
Social cohesion
Extended family
African indigenous sayings in childrearing and social cohesion in Dinokana and Motswedi villages, North West Province
Thesis
oai:repository.nwu.ac.za:10394/21702018-04-19T07:00:54Zcom_10394_1865col_10394_1866
Van der Walt, Bennie J.
2009-08-26T12:52:36Z
2009-08-26T12:52:36Z
2008
Van der Walt, B.J. 2008. Die hart van die mens herontdek: op die spoor van 'n Skrifgetroue mensbeskouing in die filosofie van D.H. Th. Vollenhoven. Koers: Bulletin for Christian scholarship = Koers : Bulletin vir Christelike Wetenskap
, 73(3):381-409, [http://www.koersjournal.org.za/index.php/koers/article/view/167]
0023-270X
http://hdl.handle.net/10394/2170
http://www.koersjournal.org.za/index.php/koers/article/view/167
This article provides a summary of the anthroplogy of the reformational philosopher, D.H. Th. Vollenhoven (1892-1978). Such a synopsis is needed because Vollenhoven himself never worked out his views on being human in detail. The “fragments” from his different writings as well as some books about his philosophy are therefore collected in order to clarify the basic contours as well as uniqueness of his viewpoint. This is done in the light of the fact that many Christians even today are still influenced by all kinds of unbiblical anthropological ideas. The investigation develops from an introduction that indicates the need and topical nature of the research. This is followed by an explanation of Vollenhoven’s historical and systematic approach as well as the development of his own anthropological views. It is then indicated how he (with his problem-historical method) analysed the great variety of anthropologies throughout history. The next section contains a systematic exposition of his own views on being human, which is followed by an indication of its contemporary relevance. The concluding section consists of a review and final evaluation.
en
Buro vir Wetenskaplike Tydskrifte / Potchefstroom
Die hart van die mens herontdek: op die spoor van 'n Skrifgetroue mensbeskouing in die filosofie van D.H. Th. Vollenhoven
Article
oai:repository.nwu.ac.za:10394/180762020-09-07T13:37:23Zcom_10394_1865col_10394_1869
Zabihi, Nima
Gouws, Rupert
11760052 - Gouws, Rupert
2016-07-27T09:58:59Z
2016-07-27T09:58:59Z
2014
Zabihi, N. & Gouws, R. 2014. Analysing two control methods of shunt active filters for unbalanced load. International journal of research in engineering and applied sciences, 2(2):48-53. [http://www.mgijournal.com/]
2249-9210
2348-1862 (Online)
http://hdl.handle.net/10394/18076
https://www.researchgate.net/publication/305412137_ANALYSING_TWO_CONTROL_METHODS_OF_SHUNT_ACTIVE_FILTERS_FOR_UNBALANCED_LOAD
A three-phase shunt active filter is used for current and/or voltage unbalance compensation. Two control schemes with two
different theory, instantaneous power theory and Generalized Fryze are considered to compensate the unbalance of current,
voltage, or both that are due to the unbalanced load. The compensation results of the different control schemes in unbalance
case are simulated and results are shown here. Different compensation objectives can be achieved, i.e., balanced and unity
power factor source current, balanced and regulated voltage, or both, by choosing appropriate control schemes by using
Instantaneous Power theory. In the case of Generalized Fryze it is seen that the current compensated by means of the
generalized Fryze currents method makes the compensated line current proportional to the corresponding phase voltage, that is,
they have the same waveform and behave like a “pure resistive” load
en
Nagpur: Yeshwantrao Chavan College of Engineering
Shunt active filter
instantaneous power theory
generalized Fryze theory
unbalanced load
Analysing two control methods of shunt active filters for unbalanced load
Article
oai:repository.nwu.ac.za:10394/155742020-08-24T12:15:57Zcom_10394_26463col_10394_26473
Rossouw, R.
Steenkamp, Lorainne
12143979 - Rossouw, Riaan (Supervisor)
2015-12-09T12:31:08Z
2015-12-09T12:31:08Z
2015
http://hdl.handle.net/10394/15574
MCom (Economics), North-West University, Potchefstroom Campus, 2015
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.
Masters
en
Economic policy
South Africa
Unemployment
CGE modelling
Capital-labour ratio
South Africa's economic policies on unemployment : a historical analysis of two decades of transition
Thesis
oai:repository.nwu.ac.za:10394/392072023-07-26T01:07:56Zcom_10394_26463col_10394_26473
Heyns, M.M.
Hennicks, Eugény C.
10321918 - Heyns, Martha Magrieta (Supervisor)
2022-06-09T12:17:49Z
2022-06-09T12:17:49Z
2022
https://orcid.org/0000-0002-0849-0505
http://hdl.handle.net/10394/39207
PhD (Labour Relations Management), North-West University, Vanderbijlpark Campus
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.
Doctoral
en
North-West University (South Africa)
Social well-being
Trust
Job security
Flourishing
Job satisfaction
Organisational citizenship behaviour
Turnover intention
Latent profile analysis
Social well-being in a utility organisation : the role of trust and job security
Thesis
oai:repository.nwu.ac.za:10394/31992016-04-28T09:34:22Zcom_10394_1865col_10394_1866
Cronje, Freek
Chenga, Charity S
2010-08-04T15:32:06Z
2010-08-04T15:32:06Z
2009
CRONJE, F. & CHENGA, C.S. 2009. Sustainable social development in the South African mining sector. Development Southern Africa, 26(3):413-427, Sept. [http://www.tandf.co.uk/journals/titles/0376835x.asp]
0376-835X
1470-3637(Online)
http://hdl.handle.net/10394/3199
http://dx.doi.org/10.1080/03768350903086788
Routledge
Sustainable social development in the South African mining sector
dim////100