Browsing Faculty of Natural Science by Title
Now showing items 2517-2536 of 2563
-
Using internet-enabled remote instrumentation for research and training in physics: evaluation of different diffusion barriers for silver metallization
(2007)The growth of the Internet has led to many interesting developments for both educational and commercial purposes. In this project an attempt was made to use the Internet for a research purpose to facilitate the determination ... -
Using semantic profiling to characterize pedagogical practices and student learning : a case study in two introductory physics courses
(University of the Western Cape, 2016)Framed by the South African imperative of widening epistemological access to undergraduate science studies, this research takes the form of a case study to investigate the educational affordances of an extended introductory ... -
Using the pollution-index method to assess water quality in the upper Olifants River Catchment, Mpumalanga Province.
(University of the Western Cape, 2017)The upper Olifants River catchment, situated in Mpumalanga Province, South Africa, is one of the main sources of water for this region. This region face challenges to guarantee future water security due to intensive land ... -
Using Ulva (Chlorophyta) for the production of biomethane and mitigation against coastal acidification
(University of the Western Cape, 2016)In South Africa the green macroalga Ulva armoricana is the main species of macroalgae cultured. The species is currently the largest aquaculture (2884.61 tonnes) product by weight with a corresponding capacity for biogas ... -
Using water law enforcement to demonstrate the effectiveness of regulations for the protection of water resources
(University of the Western Cape, 2021)The South African National Water Act attracted attention of the international water community as one of the most reformist pieces of water legislation in the world, and a major step forward in the transformation of the ... -
The utilisation of HIV services on campus by the students of the University of the Western Cape
(University of the Western Cape, 2009)This qualitative study was conducted from June to November 2009, using designed questionnaires for sixty three (63) registered students and five (5) HIV program staff .The main reason for this study was to understand the ... -
Utilization of health care services and maternal education in South Africa
(University of the Western Cape, 2014)The importance of maternal health care services cannot be stressed enough. Maternal health services are important in reducing pregnancy-related complications as well as maternal and infant deaths. This study was concerned ... -
Validation and application of a highly discriminating and rapid 10-locus Y-STR DNA profiling system
(University of the Western Cape, 2019)DNA profiling the male specific region on the Y-chromosome is fundamental to forensic practise. Its recognised as a powerful analytical tool for investigation of sexual assault when the DNA evidence is highly admixed. ... -
Validation of Gamma Ray spectrometry process used to determine the radionuclides and radioactivity levels in decorative Granite countertops.
(University of the Western Cape, 2016)Humans are continuously exposed to low level of ionizing radiation, sources include soil, medical treatment and as well as radiation emissions from natural materials like granite rocks. The radiation levels present in these ... -
Valorisation of brewers’ spent grain: enzymatic hydrolysis in the production of xylooligosaccharides
(University of the Western Cape, 2023)The beverage industry constitutes approximately 26% of all food wastes, making it one of the largest contributors in this waste segment. By utilising waste or by-products from agriculture and food production in manufacturing ... -
Valuation of options for hedging against exchange rate exposure
(University of the Western Cape, 2019)The risk associated with currency exposure is one of the main sources of risk in terms of internationally diversi ed portfolios. Controlling the risk is important for improving the performance of international investments. ... -
Valuing the natural resources and ecosystem services of Leliefontein communal rangeland in Namaqualand, South Africa.
(University of the Western Cape, 2014)Natural resources play important roles in ecosystem service delivery, more especially in rural households where livelihoods depend heavily on natural resources for the delivery of ecosystem services. The various benefits ... -
Vanadium dioxide nanocomposite thin film embedded in zinc oxide matrix as tunable transparent conductive oxide
(University of the Western Cape, 2013)This project is aimed at fabricating a smart material. Zinc oxide and vanadium dioxide have received a great deal of attention in recent years because they are used in various applications. ZnO semiconductor in particular ... -
Variability and interannual trends in the climatology of radon-222 at two Southern Hemisphere coastal baseline sites
(University of the Western Cape, 2021)This thesis characterises and discusses two continuous coastal Southern Hemispheric (SH) atmospheric radon (222Rn) signals. Large-scale atmospheric circulation patterns are important components of the climate system ... -
Variances of purity within torsion-free Abelian groups
(University of the Western Cape, 1994)In 1921, Prufer introduced the concept of a pure subgroup of an abelian group. This concept, which is applicable only to abelian groups, proved to be a very useful one. Subsequently, this concept has sparked off numerous ... -
Vegetable farms in Cape Town: water quality and possible remediation techniques
(University of the Western Cape, 2012)Heavy metal contamination tends to be a problem in inner city agricultural areas and gardens. High levels of certain heavy metals have been found in the soil and vegetables in the Cape Town Metropolitan area. The aim of ... -
Vegetation relationships of priority conservation sites on the Cape flats
(University of the Western Cape, 1992)The physical environment of the cape Frats is outlined. The plant communities of twenty-one priority conservation sites are classified. Twenty-five communities, grouped into 15 associations, 8 alliances, 4 orders, 2 ... -
Venous thromboembolism risk assessment and prophylaxis in selected public sector hospitals in the Cape Town metropole
(University of the Western Cape, 2021)Background: Venous thromboembolism (VTE) is reported to be the leading cause of death in hospitalised patients worldwide. Thromboprophylaxis provides a well-established and evidence-based approach to preventing VTE. This ... -
Vertically aligned silicon nanowires synthesised by metal assisted chemical etching for photovoltaic applications
(University of the Western Cape, 2015)One-dimensional silicon nanowires (SiNWs) are promising building blocks for solar cells as they provide a controlled, vectorial transport route for photo-generated charge carriers in the device as well as providing ... -
Video annotation wiki for South African sign language
(University of the Western Cape, 2011)The SASL project at the University of the Western Cape aims at developing a fully automated translation system between English and South African Sign Language (SASL). Three important aspects of this system require SASL ...