Browsing Faculty of Natural Science by Title
Now showing items 1903-1922 of 2565
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Potamonautes spp. As a bioindicator for oestrogenic endocrine disrupting chemicals
(University of the Western Cape, 2017)Environmental pollutants, such as endocrine disrupting chemicals (EDCs), are a health concern as they can adversely affect animal health by interfering with the normal function of hormones. Oestrogenic EDCs can cause ... -
Potential anti-melanogenic effects of selected South African plants on b16 melanoma cells
(University of the Western Cape, 2019)Dyspigmentation is one of the commonest dermatological presenting complaints from patients, particularly hyperpigmentation. Hyperpigmentation can cause dangerous psychological and emotional impact on self-perception and ... -
Potential neuroprotective effects of fermented rooibos herbal tea in a rat model of ischemic brain injury
(University of the Western Cape, 2015)Stroke is the third leading cause of death in South Africa, killing about 240 people a day and leaving survivors with residual disabilities. There is no clinically approved neuroprotective agent for stroke at the moment ... -
The potential neuroprotective effects of two South African plant extracts in hydrogen peroxide-induced neuronal toxicity
(University of the Western Cape, 2018)Background: Oxidative stress induced by reactive oxygen species has been strongly associated with many neurodegenerative diseases (NDDs) and many medicinal plant-derived products have been reported to exert potent antioxidant ... -
The potential of commercial praziquantel formulations as "off label" treatments for diplectanum oliveri (monogenea) infecting cultured argyrosomus species in the South African marine finfish aquaculture industry
(University of the Western Cape, 2012)Aquaculture is a vast industry all over the world and has increased significantly during the past 30 years. In South Africa, finfish aquaculture farms stretch from Gansbaai to as far as Richards bay with the potential ... -
The potential therapeutic role of palm oil on prostate cancer
(University of the Western Cape, 2020)Prostate cancer is one of the heterogeneous groups of neoplastic diseases originating from the reproductive system of the male naming, the prostate gland. In the west, prostate cancer is the most common cancer affecting ... -
Poverty and access to health care in Ghana: the challenge of bridging the equity gap with health insurance
(University of the Western Cape, 2014)This study addresses the issue of the low participation in or enrolment of the poor in Ghana’s National Health Insurance Scheme (NHIS). The low enrolment of the poor in the NHIS is attributed to the difficulty in identifying ... -
Power studies of multivariate two-sample tests of comparison
(University of the Western Cape, 2007)The multivariate two-sample tests provide a means to test the match between two multivariate distributions. Although many tests exist in the literature, relatively little is known about the relative power of these procedures. ... -
Power studies of multivariate two-sample tests of comparison
(University of the Western Cape, 2007)The multivariate two-sample tests provide a means to test the match between two multivariate distributions. Although many tests exist in the literature, relatively little is known about the relative power of these procedures. ... -
Pre-equilibrium cross section calculations with a realistic effective nucleon-nucleon interaction
(University of the Western Cape, 1995)The principle aim of this work is to improve the way in which pre-equilibrium double differential cross-sections are currently calculated [1, 2, 3, 4]. The theoretical basis for these calculations is the Multistep Direct ... -
Pre-paid water metering: social experiences and lessons learned from Klipheuwel pilot project, South Africa
(University of the Western Cape, 2006)This thesis examined a pre-paid water metering pilot project which was implemented in Klipheuwel , Cape Town, South Africa in 2001. It was anticipated that the implementation of pre-paid water meters would help improve the ... -
Predicting reptile species distributions and biogeographic patterns within Kruger National Park
(University of the Western Cape, 2018)Knowledge of global reptile ecology is limited and there remains much to understand in terms of detailed reptile species information, including that of their distributions. In South Africa, despite being one of SANParks ... -
Prediction of antimicrobial peptides using hyperparameter optimized support vector machines
(University of the Western Cape, 2011)Antimicrobial peptides (AMPs) play a key role in the innate immune response. They can be ubiquitously found in a wide range of eukaryotes including mammals, amphibians, insects, plants, and protozoa. In lower organisms, ... -
Predictors of design and adoption of collaborative elearning environments: a multi-method analysis
(University of Western Cape, 2020)Research has shown that collaborative eLearning can provide educational opportunities to groups of learners; both distance learners as well as traditional campus-based learners. It provides innovative educational methods ... -
Preferential flow modelling in a vadose zone using macro 5.0 - Cape Flats porous sands and Mpumalanga highveld clays case studies
(University of the Western Cape, 2008)Understanding fluid flow and solute transport within the vadose (unsaturated) zone is an essential prerequisite for protection of groundwater from contaminant sources occurring overland. Preferential flow paths in the ... -
Preferential flow modelling in a vadose zone using macro 5.0 – Cape flats porous sands and Mpumalanga highveld clays case studies
(2008)The objectives of this study were: To review and understand flow and transport processes in unsaturated zones. In this study, particular emphasis is placed on understanding mechanisms that cause non-uniform (preferential) ... -
Preliminary investigation of the natural contamination of agricultural crops with selected mycotoxins in northern rural South Africa (Limpopo and Mpumalanga Provinces)
(University of Western Cape, 2013)Subsistence farmers may contribute significantly to food production, food security, and employment in South Africa. However poor storage practices and contamination with mycotoxins, particularly fumonisins and aflatoxins ... -
A preliminary understanding of deep groundwater flow in the Table Mountain group (TMG) aquifer system
(University of the Western Cape, 2007)The Table Mountain Group (TMG) Aquifer is the second largest aquifer system in South Africa, after dolomites. This aquifer has the potential to be a signinficant source of water for the people of the Western Cape. The ... -
Premature aging of the lungs of the offspring induced by maternal nicotine exposure during gestation and lactation: protective effects of tomato juice
(University of the Western Cape, 2012)exposed to nicotine through the blood and the milk of the mother. Nicotine is thus expected to interact with the developing fetus and the offspring of mothers who smoke or use NRT for smoking cessation, resulting in the ... -
Preparation and characterization of highly active nano pt/c electrocatalyst for proton exchange membrane fuel cell
(University of the Western Cape, 2006)Catalysts play an essential role in nearly every chemical production process. Platinum supported on high surface area carbon substrates (Pt/C) is one of the promising candidates as an electrocatalyst in low temperature ...