Browsing Faculty of Natural Science by Title
Now showing items 937-956 of 2560
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Exploring the influence of organisational, environmental, and technological factors on information security policies and compliance at South African higher education institutions: Implications for biomedical research.
(University of Western Cape, 2020)Headline reports on data breaches worldwide have resulted in heightened concerns about information security vulnerability. In Africa, South Africa is ranked among the top ‘at-risk’ countries with information security ... -
Exploring the role of the “glycan-shield” of human immunodeficiency virus in susceptibility to, and escape from, broadly neutralising antibodies
(University of the Western Cape, 2018)The HIV-1 envelope (Env) glycoprotein is the primary target of the humoral immune response and a critical vaccine candidate. However, Env is densely glycosylated and thereby substantially protected from neutralisation. ... -
Expression and purification of the novel protein domain DWNN
(University of the Western Cape, 2002)Proteins play an important role in cells, as the morphology, function and activities of the cell depend on the proteins they express. The key to understanding how different proteins function lies in an understanding of the ... -
Expression of human coronavirus NL63 and SARS-CoV nucleocapsid proteins for antibody production
(University of the Western Cape, 2012)Human Coronaviruses (HCoVs) are found within the family Coronaviridae (genus, Coronavirus) and are enveloped, single-stranded, positive-sense RNA viruses. Infections of humans by coronaviruses are not normally associated ... -
Expression of recombinant S-locus F-box-S2 protein and computational modeling of protein interaction at the self-incompatibility locus of Rosaceae
(2012)Self-incompatibility (SI) is a major mechanism that prevents inbreeding in ow-ering plants, which was identi ed in Rosaceae, Solanaceae and Scrophulariace. In these families, SI is gametophytic and retains inter-speci ... -
Expression of stress-tolerance related genes in Saccharomyces cerevisiae producing heterologous cellobiohydrolase.
(University of the Western Cape, 2017)Cellulose is the most abundant naturally occurring renewable biopolymer on earth and a major structural component in plant cell walls, making it an ideal source of renewable energy. Consolidated bioprocessing (CBP) is a ... -
Expression studies of human coronavirus nl63- nucleocapsid, membrane and envelope proteins
(2013)Acute respiratory infections (ARI) continue to be the leading cause of acute illnesses worldwide and remain the most important cause of infant and young children mortality. Many viruses such as rhinoviruses, influenza ... -
Extant benthic Foraminifera from two bays along the SW coast of South Africa, with a comment about their use as indicators of pollution
(University of the Western Cape, 2010)The results of the multivariate analyses suggest that most of the variation in the composition of the samples was of an intra-sample nature, illustrating large scale patchiness in foraminiferal distribution. There were, ... -
Extraction, fractionation, nanoparticles formulation, and antimicrobial activity of lipids from black soldier fly larvae
(University of Western Cape, 2021)Hermetia illucens (Diptera: Stratiomyidae) known as the black soldier fly (BSF) is an efficient ecological organic waste decomposer. Its larvae grow through six larval instars on a variety of decomposing organic substrates ... -
The extraction, purification and evaluation of compounds from the leaves of Leonotis Leonorus for anticonvulsant activity
(University of the Western Cape, 2002)The aim of this study is to isolate and evaluate the anticonvulsant components from the leaves of Leonotis leonorus (L) R.aR. and to see if there is any change in activity with the origin of the plant material and I or the ... -
Fabrication and characterization of a solar cell using an aluminium p-doped layer in the hot-wire chemical vapour deposition process
(2010)When the amorphous silicon (a-Si) dangling bonds are bonded to hydrogen the concentration of the dangling bond is decreased. The resulting film is called hydrogenated amorphous silicon (a-Si:H). The reduction in the dangling ... -
Fabrication and characterization of a solar cell using an aluminium p-doped layer in the hot-wire chemical vapour deposition process
(University of the Western Cape, 2010)When the amorphous silicon (a-Si) dangling bonds are bonded to hydrogen the concentration of the dangling bond is decreased. The resulting film is called hydrogenated amorphous silicon (a-Si:H). The reduction in the dangling ... -
Fabrication and kinetic modeling of cytochrome P4502D6 amperometric biosensors for serotonin reuptake inhibitors
(University of the Western Cape, 2005)An amperometric biosensor was prepared by in situ deposition of cytochrome P4502D6 (CYP2D6, P4502D6) enzyme on a polyaniline (PANI)-doped glassy carbon electrode. The PANI film was electrochemically deposited on the electrode ... -
Fabrication of luminescent nanocomposites for diagnosis of breast cancer
(University of the Western Cape, 2016)In this study we were able to synthesize separately iron oxide magnetic nanoparticles, InP/ZnSe and CdTe/ZnS quantum dots. The iron oxide nanoparticles were coupled with InP/ZnSe QDs to form the luminescent magnetic ... -
Fabrication of metal-organic frameworks with application-specific properties for hydrogen storage application
(University of Western Cape, 2019)The application of porous materials into industrial hydrogen (H2) storage systems is based on their use in combination with high-pressure cylinders. The processing of metal-organic frameworks (MOF) powders into shaped ... -
Fabrication of nanomaterials from biomass for adsorption and antimicrobial applications
(University of the Western Cape, 2020)The Black soldier fly (BSF) is an environmentally friendly and sustainable insect utilised in the decomposition of organic waste. This is due to its voracious consumption capability, disruptive functions and economic ... -
Fabrication of type-I indium-based near-infrared emitting quantum dots for biological imaging applications
(University of the Western Cape, 2013)Semiconductor nanocrystals or quantum dots (QDs) are fluorescent nanometer-sized particles which have physical dimensions that are smaller than the excitonic Bohr radius, large surface area-to-volume ratios, broad ... -
Facies, depositional environments and reservoir properties of the albian age gas bearing sandstone of the ibhubesi oil field, orange basin, South Africa
(University of the Western Cape, 2009)The Orange Basin was formed during the late Jurassic to early Cretaceous periods due to Gondwana breakup and rifting and later drifting apart of the African and South American plates. The basin consists of siliciclastic ... -
Factors affecting the enrolment rate of students in higher education institutions in the Gauteng province, South Africa : based on General Household Survey 2012
(University of the Western Cape, 2015)Background: In South Africa, many students are not able to register at higher education institutions after receiving their high school diploma. The majority of those who do register do not even complete their tertiary ... -
Factors affecting the pharmacokinetics of vancomycin in children admitted to the intensive care unit (icu) of the Red Cross War Memorial Children's Hospital (RCWMCH).
(University of the Western Cape, 2023)Vancomycin is a glycopeptide antibiotic that inhibits bacterial cell wall synthesis by binding to the D-alanyl-D-alanine terminal end of cell wall precursor units preventing the elongation and cross-linkage of the ...