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Now showing items 131-140 of 150
Composition and diversity of Mopaneveld herbaceous vegetation : an exclosure experiment
(North-West University (South Africa), Potchefstroom Campus, 2015)
The herbaceous vegetation layer of the semi-arid Mopaneveld savanna possess a distinctive homogeneity and is highly dynamic in its response to disturbances such as herbivory. Understanding how this ecosystem reacts to ...
The speciation and solvent extraction of zirconium and hafnium : a computational and experimental approach
(North-West University (South Africa), Potchefstroom Campus, 2015)
Zirconium and hafnium have important applications within the nuclear industry, where zirconium is used to clad the uranium fuel rod tubes that are used during nuclear reactions and hafnium is used in the control rods which ...
A remote sensing and GIS scheme for rangeland quality assessment and management in the North-West Province, South Africa
(North-West University (South Africa), 2015)
South African rangelands contribute 80% of the total area of the country although most of them are believed to be degraded due to anthropogenic activities. In the North-West province of South Africa, degradation of rangeland ...
Oxidation of sodium thiocyanate (NaSCN) in high ionic-strength process aqueous liquor
(North-West University (South Africa), 2015)
The use of liquid redox processes (Stretford Process) for the absorption of H2S from gaseous streams and converting the absorbed H2S into elemental sulphur is widely used. The chemistry of Stretford process aqueous liquors ...
Quantification of coenzymeQ10 in South African pediatric patients with electron transport chain deficiencies
(North-West University (South Africa), Potchefstroom Campus, 2015)
CoenzymeQ10 (CoQ10) is an important component of the mitochondrial electron transport chain
(ETC). Co010 deficiency mainly affects children, and patients present with heterogeneous
clinical phenotypes. Patients frequently ...
The configuration of the East Rand Basin surface runoff model used for source apportionment studies
(North-West University (South Africa), 2015)
Numerous mines have been operating in the East Rand Basin (ERB) since the 1940s. Most
of these mining activities have since ceased and the mines are busy flooding . If decant of
acid mine drainage takes place, treatment ...
The effect of glyphosate and Cry1Ab proteins on the growth and survival of tadpoles of two amphibian species
(2015)
Studies have shown that pesticides have negative effects on non-target organisms. Lately more studies are focusing on amphibians due to their rapid world-wide decline. This study addressed the potential effects of glyphosate ...
Surface impacts of gold mining activities on the Kromdraai/Koekemoerspruit : a situation analysis
(2015)
Six point sources of potential contamination from gold mine tailings were identified along the Kromdraai/Koekemoerspruit drainage basin. The degree of contamination of the tailings, soils, surface water, stream sediments ...
Elucidation of the biochemical and functional properties of an unknown novel protein from Arabidopsis thaliana
(2015)
Adenylate cyclases (ACs) are a special group of enzymes capable of catalyzing the conversion of adenosine 5ʹ-triphosphate (ATP) into the signaling molecule cyclic 3ʹ,5ʹ-adenosine monophosphate (cAMP), which in turn acts ...
Farm dam siltation, sediment management and sediment source tracing in the Zeerust-Swartruggens Area, North West Province
(North-West University (South Africa), 2015)
The North-West province in South Africa is a semi-arid landscape vulnerable to soil erosion and sediment related problems. There is high dependence on small farm dams for the provision of water for cattle and irrigation. ...