Browsing Research Output by Title
Now showing items 3900-3919 of 13384
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The effect of socio–demographic factors on risky–sexual behaviours of adolescents in the North West Province of South Africa
(African Population Studies, 2014)The present study sought to fill a research void on adolescent problem behaviours in South Africa by examining individual and contextual factors that affect sexual-risk taking behaviours amongst black African adolescents ... -
Effect of sodium compounds on the sintering propensity of coal-associated minerals
(Elsevier, 2015)This study focused on the chemistry involved in sintering of coal-associated minerals during combustion and inert conditions. Changes in mechanical strength were recorded with compressive strength measurements. This method ... -
Effect of some nitrogen donor ligands on the optical and structural properties of CdS nanoparticles
(RSC, 2013)The cadmium complex of N-ethyl-N-phenyl dithiocarbamate, 1, and its 2,20-bipyridine and 1,10-phenanthroline adducts, 2, and 3, respectively, have been used as single source precursors for the synthesis of CdS nanoparticles. ... -
The effect of sputtered Pt40Pd57Al3 thin film thickness on SO2(aq) electro-oxidation
(Springer, 2019)The influence of sputtered Pt40Pd57Al3 thin films of varying thickness, in the as-deposited (AD) and annealed (AN) state, was investigated for the electro-oxidation of aqueous SO2. From physical characterisation (scanning ... -
The effect of sputtered Pt40Pd57Al3 thin film thickness on SO2(aq) electro-oxidation
(Springer, 2019)The influence of sputtered Pt40Pd57Al3 thin films of varying thickness, in the as-deposited (AD) and annealed (AN) state, was investigated for the electro-oxidation of aqueous SO2. From physical characterisation (scanning ... -
The effect of sputtered Pt40Pd57Al3 thin film thickness on SO2(aq) electro-oxidation
(Springer, 2019)The influence of sputtered Pt40Pd57Al3 thin films of varying thickness, in the as-deposited (AD) and annealed (AN) state, was investigated for the electro-oxidation of aqueous SO2. From physical characterisation (scanning ... -
The effect of stressed economic conditions on credit risk in Basel II
(Sabomet, 2011)The robustness of the Basel II accord in protecting banks during volatile economic periods has been challenged during the ongoing credit crisis. In particular, advanced approaches to measuring and managing credit risk have ... -
The effect of stressed economic conditions on operational risk loss distributions
(Faculty of Economic and Management Sciences, University of Pretoria, 2010)The depth and duration of the credit crisis has highlighted a number of problems in modern finance. Banks have been accused of excessive risk taking, rating agencies of severe conflicts of interest, central banks of ... -
The effect of stressed economic conditions on systemic risk within the South African banking sector
(Wiley-Blackwell, 2011)The credit crisis resulted in increases in credit, market and operational risk, but it may also have precipitated a surge in systemic risk. Measuring systemic risk as the price of insurance against distressed losses in the ... -
Effect of surface treatment on the bioactivity and electrochemical behavior of magnesium alloys in simulated body fluid
(Wiley, 2017)The effect of surface treatment using NaOH or H2O2 on the bioactivity and corrosion behavior of AZX310, AZ91D, AM50, and AZ31 Mg alloys in simulated body fluid (SBF) has been studied with the aid of surface morphological ... -
The effect of technology assisted therapy for intellectually and visually impaired adults suffering from separation anxiety: conquering the fear
(Taylor & Francis, 2019)Persons with an intellectual disability (ID) are at risk of developing separation anxiety (SA) and, if left untreated, this can be a risk factor for the development of psychopathology. The effects of an intervention, namely ... -
Effect of temperature and cathode material on power production in an earthenware microbial fuel cell
(EARET, 2018)This study investigates the performance of microbial fuel cells (MFCs) fed with municipal sewage water considering parameters such as temperature and cathode materials. Single chamber ceramic MFCs with the cathode exposed ... -
The effect of temperature and moisture on the amorphous-to-crystalline transformation of stavudine
(Elsevier, 2009)Stavudine is a nucleoside reverse transcriptase inhibitor active against HIV, and is known to exist in two polymorphic forms designated as forms I and II, and a hydrate form III. An amorphous solid of stavudine was ... -
Effect of temperature on density, sound velocity, and their derived properties for the binary systems glycerol with water or alcohols
(Elsevier, 2017)Densities and sound velocities of three binary systems containing glycerol + (water, methanol, or ethanol) have been measured over the entire composition range at temperatures ranging from (283.15 to 313.15) K in 10 K ... -
The effect of temperature on Nysius natalensis Evans (Hemiptera: Orsillidae) development and survival
(Entomological Society of Southern Africa, 2011)The false chinch bug, Nysius natalensis Evans (Hemiptera: Orsillidae), is a pest of sunflower, Helianthus annuus L. (Asteraceae), in South Africa. Pest outbreaks usually occur in localized areas towards the end of the ... -
The effect of temperature on resistance in african rice (Oryza glaberrima steud.) genotypes to the rice rootknot nematode Meloidogyne graminicola
(Organization of Nematologists of Tropical America, 2016)The rice root-knot nematode, Meloidogyne graminicola, has emerged as a serious soilborne pathogen of rice in most Asian countries. The host response of the M. graminicola-resistant African (Oryza glaberrima) rice genotypes ... -
The effect of temperature on the development and reproduction of Busseola fusca (Lepidoptera: Noctuidae)
(Cambridge Univ Press, 2017)The effect of temperature on the reproduction and development of Busseola fusca was studied under laboratory conditions. Single male–female pairs were confined to oviposition chambers kept at 15, 20, 26 and 30 ± 1°C and a ... -
Effect of temperature on the optical and structural properties of hexadecylamine capped ZnS nanoparticles using Zinc(II) N-ethyl-N-phenyldithiocarbamate as single source precursor
(Elsevier, 2012)Reported in this work is the synthesis of HDA (hexadecylamine)-capped ZnS nanoparticles by a single source route using Zinc(II) N-ethyl-N-phenyldithiocarbamate as a precursor. By varying the growth temperature, the ... -
Effect of temperature on the performance of Rheofloc: conductivity removal from RO-reject
(EARET, 2018)South Africa is an arid country with an annual average rainfall less than half of the world’s average rainfall. The industrial sector uses 11% of this limited amount of water. Eskom is one of these users. Within the ... -
The effect of temperature on the pH, d-lactate and haemocyanin oxygen affinity of Opistophthalmus latimanus (Koch) (Scorpionidae) heamolymph
(Entomological Society of Southern Africa, 2010)