Institutional Repository | North-West University | NWU: Recent submissions
Now showing items 8481-8500 of 35800
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An integrated thermal-hydraulic system CFD model of a prismatic block HTR core using Flownex
(North-West University (South Africa), Potchefstroom Campus, 2019)The active core of a prismatic high temperature reactor (HTR) consists of standard fuel, reserve shutdown and control blocks which must be maintained within a safe operating envelope. The fuel blocks are coupled to the ... -
Intake and status of iron and fatty acids during pregnancy in association with birth outcomes in women residing in urban South Africa
(North-West University (South-Africa). Potchefstroom Campus, 2019)Nutrient requirements increase during pregnancy and women are vulnerable to inadequate nutritional status during this period of rapid foetal growth. Poor dietary intake and nutritional status during pregnancy have been ... -
Marinobufagenin and markers of early cardiovascular risk in a young black and white population: The African-PREDICT study
(North-West University (South-Africa). Potchefstroom Campus, 2019)There have been many arguments about the harmful effect of increased or low salt intake and its concurrent role in cardiovascular health. While an overwhelming amount of research has focused on the relationship between ... -
The long-term viability of Elim mall as a growth point in Makhado Municipality
(North-West University (South Africa). Potchefstroom Campus, 2019)Spatial fragmentation is a deeply entrenched feature of the south African space economy. Little progress has been made in reversing this after more than 25 years of enlightened, post-apartheid, spatial planning. A key ... -
Synthesis and evaluation of nitrocatechol derivatives of chalcone as inhibitors of monoamine oxidase and catechol-O-methyltransferase
(North-West University (South-Africa). Potchefstroom Campus, 2019)Parkinson’s disease is a progressive neurological movement disorder that worsens with age. Parkinson’s disease is still the most frequent neurodegenerative disorder after Alzheimer’s disease. There is no known cause of ... -
The effect of mycotoxin exposure on the growth of infants and young children in deep rural areas of the Eastern Cape Province, South Africa
(North-West University (South-Africa). Potchefstroom Campus, 2019)Malnutrition (especially undernutrition) is a global public health concern in developing countries such as South Africa (SA) and is predominately prevalent among infants and young children (IYC) less than 24 months of age. ... -
Development and optimisation of gold nanoparticle based bioassays
(North-West University (South Africa). Potchefstroom Campus, 2019)Gold nanoparticles, in particular nanostars, are being utilised more regularly in the field of biosensing. Despite their useful attributes, there is still a need to optimise aspects of the synthesis and stability of the ... -
Considering green place-making as tool to enhance city branding approaches
(North-West University (South Africa). Potchefstroom Campus, 2019)This study considered green place-making as a tool to enhance city branding. Contemporary cities experience challenges to address the needs of the growing population, whilst managing scarce resources. Contemporary cities ... -
Spatial, temporal and source contribution assessments of aerosol black carbon over the northern interior of South Africa
(North-West University (South Africa). Potchefstroom Campus, 2019)After carbon dioxide (CO2), aerosol black carbon (BC) is considered to be the second most important contributor to global warming. Africa is one of the least studied continents, although it is regarded as the largest source ... -
Range expansion of the Common Dwarf Gecko, Lygodactylus capensis: South Africa’s most successful reptile invader
(SEH, 2019)Here we describe the invasion history in South Africa of the Common Dwarf Gecko Lygodactylus capensis (Smith, 1849), particularly into areas distant from its native range. We provide maps that include detailed records ... -
Amphibian chytrid fungus in Africa – realigning hypotheses and the research paradigm
(Wiley, 2020)The amphibian chytrid fungus Batrachochytrium dendrobatidis (Bd), responsible for numerous amphibian declines and extinctions, was previously thought to originate from the African continent. This was based on infected ... -
Finite element density functional calculations for light molecules using a cusp factor to mitigate the Coulomb potential
(EDP Sciences, 2019)Finite element calculations have been performed in Cartesian coordinates using the density functional approach for a number of small molecules. In order to aid convergence of the orbitals and total energies a suitable cusp ... -
Growth and neurite stimulating effects of the neonicotinoid pesticide clothianidin on human neuroblastoma SH-SY5Y cells
(Elsevier, 2019)Neonicotinoids are one of most widely used pesticides targeting nicotinic acetylcholine receptors (nAChRs) of insects. Recent epidemiological evidence revealed increasing amounts of neonicotinoids detected in human samples, ... -
Novel information on the morphology, phylogeny and distribution of camallanid nematodes from marine and freshwater hosts in South Africa, including the description of Camallanus sodwanaensis n. sp.
(Elsevier, 2019)Four species of previously known nematodes from the family Camallanidae were found from different hosts in South Africa: Batrachocamallanus xenopodis from the frog Xenopus muelleri, Paracamallanus cyathopharynx and ... -
A cosmic collider: was the IceCube neutrino generated in a precessing jet-jet interaction in TXS 0506+056?
(EDP Sciences, 2019)Context. The neutrino event IceCube−170922A appears to originate from the BL Lac object TXS 0506+056. To understand the neutrino creation process and to localize the emission site, we studied the radio images of the jet ... -
DFT modelling of tantalum pentafluoride extraction with phosphorus-based extractants – a molecular dynamics study
(Elsevier, 2019)Solvent extraction (SX) is a powerful method for both the separation and extraction of metals, resulting in high purity metals. The transition metals tantalum (Ta) and niobium (Nb) are of considerable significance, for ... -
Investigate the possible reduction of mine water ingress by introducing tree plantations: case study of Cooke 4 mine (South Africa)
(Elsevier, 2020)Continuous influxes of groundwater into underground mine workings require a significant financial investment related mainly to the high costs of pumping of large volumes of water ingress, consequently mines become unprofitable. ... -
A computational model for the description of electrostatic precipitator performance
(North-West University, 2019)A comprehensive computational model of an electrostatic precipitator was developed by incorporating the interacting phenomenon of fluid dynamics, particle dynamics and electrostatics using the commercial software STAR-CCM+® ... -
Role of intrinsic factors of polyimides in glass transition temperature: an atomistic investigation
(ACS, 2019)Polyimides (PIs) are in high demand in the field of active matrix organic light-emitting diode displays because of their excellent heat resistance, chemical stability, and mechanical properties. However, the most critical ... -
Agricultural practices and their potential role in mycotoxin contamination of maize and groundnut subsistence farming
(ASSAf, 2019)Mycotoxigenic fungi are common pathogens of maize and groundnuts; they produce mycotoxins which reduce the yield and quality of these grain crops. Numerous agricultural practices including crop rotation and storage methods ...
