Browsing Research Output by Title
Now showing items 853-872 of 13363
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Assessing the catalytic effect of coal ash constituents on the CO2 gasification rate of high ash, South African coal
(Elsevier, 2011)The catalytic effect of inorganic species, within the ash, on the CO2 gasification of three South African coals containing similar carbon-structural properties (elemental, structural and petrographical properties) was ... -
Assessing the consistency of John Calvin’s doctrine on human sinfulness
(AOSIS, 2015)The accusation is often levelled at Calvin that his doctrine on sin is inconsistent, contradictory, deterministic and culpable of making God the Author of sin. This article probes the validity of these accusations by ... -
Assessing the construct validity of nutrient profiling models for restricting the marketing of foods to children in South Africa
(Nature, 2020)Background In an effort to combat childhood obesity the WHO has called on governments to restrict the marketing of unhealthy foods to children. Regulators have turned to nutrient profiling (NP) to provide the evidence for ... -
Assessing the DNA methylation status of single cells with the comet assay
(Elsevier, 2010)The comet assay (single cell gel electrophoresis) is a cost-effective, sensitive, and simple technique that is traditionally used for analyzing and quantifying DNA damage in individual cells. The aim of this study was to ... -
Assessing the ecosystem support function of South African coal mining soil environments using earthworm (Eisenia andrei) bioassays
(Elsevier, 2021)Anthropogenic disturbances of soil environments predispose loss of soil ecosystem functions, including its habitat support function. In this study, the potential ecosystem support and habitat functions of soils from ... -
Assessing the ecotoxicity of gold mine tailings utilizing earthworm and microbial assays
(Springer, 2015)Problems associated with mining are the disposal of wastes on tailing disposal facilities (TDFs). The aim of this study was to determine the ecotoxicity of gold mine tailings by using earthworm bioassays, earthworm biomarkers ... -
Assessing the extent of the application of strategic thinking in a local sphere of government
(Medwell, 2017)This study assessed the extent of the application of strategic thinking in a Metropolitan Municipality in South Africa. It was aimed at initiating an inquiry into the relevance of strategic thinking to local governance: ... -
Assessing the historicalphilosophical background of the German Staatslehre in the light of the type law of the state
(Vereniging vir Christelike Hoër Onderwys, 2015)In this article the contribution of the German Staatslehre towards an understanding of the type law of the state will be assessed in terms of various systematic distinctions and by taking into account significant historical ... -
Assessing the impact of Eskom power plant emissions on ambient air quality over KwaZamokuhle
(National Association for Clean Air, 2019)Coal-fired power plants are considered a major source of criteria air pollutants. The existence of such activities close to densely populated areas has an impact on human health and more generally on the environment. The ... -
Assessing the likelihood of gene flow from sugarcane (Saccharum Hybrids) to wild relatives in South Africa
(Frontiers Media, 2018)Pre-commercialization studies on environmental biosafety of genetically modified (GM) crops are necessary to evaluate the potential for sexual hybridization with related plant species that occur in the release area. The ... -
Assessing the mycotoxicological risk from consumption of complementary foods by infants and young children in Nigeria
(Elsevier, 2018)This study assessed, for the first time, the mycotoxicological risks from consumption of complementary foods by infants and young children in Nigeria. Molds belonging to Aspergillus aculeatinus, A. flavus, A. luchuensis, ... -
Assessing the organisational and individual strengths use and deficit improvement amongst sport coaches
(AOSIS, 2013)Orientation: The orientation of this study is towards strengths use and deficit improvement and the relationship with engagement. Research purpose: To (1) determine whether adapted versions of the Strengths Use and Deficit ... -
Assessing tobacco use in an African population: serum and urine cotinine cut-offs from South Africa
(Elsevier, 2019)Background Cotinine, a nicotine metabolite, is used to measure tobacco use and exposure, but recommended cut-offs to differentiate tobacco users from those exposed through the environment range from 3 to 58 ng/ml in serum, ... -
Assessment and reduction of proliferation risk of reactor-gradeplutonium regarding construction of ‘fizzle bombs’ by terrorists
(Elsevier, 2014)The approximately 23.7 wt% 240Pu in reactor-grade plutonium denatures the 239Pu to the extent that it cannot fuel high yield nuclear weapons. 240Pu has a high spontaneous fission rate, which increases the spontaneous neutron ... -
Assessment of a statistical approach that facilitates the constraint of pulsar geometry via dualband light curve fitting
(Sissa Medialab, 2017)The Large Area Telescope aboard the Fermi spacecraft has detected more than 200 γ-ray pulsars since its launch in 2008. By concurrently fitting standard geometric model light curves onto Fermi and radio data, researchers ... -
An assessment of applicability of existing approaches to predicting the bioaccumulation of conventional substances in nanomaterials
(Setac, 2018)The experimental determination of bioaccumulation is challenging, and a number of approaches have been developed for its prediction. It is important to assess the applicability of these predictive approaches to nanomaterials ... -
Assessment of arbuscular mycorrhizal fungal spore density and viability in soil stockpiles of South African opencast coal mines
(Taylor & Francis, 2019)The symbioses between arbuscular mycorrhizal (AM) fungi and plant roots is essential for nutrient uptake and growth of most vascular plants. Soil condition and management influence the density and viability of arbuscular ... -
Assessment of atmospheric trace metals in the western Bushveld Igneous Complex, South Africa
(ASSAf, 2014)Trace metal species emitted into the atmosphere from natural and anthropogenic sources can cause various health-related and environmental problems. Limited data exist for atmospheric trace metal concentrations in South ...