Browsing Faculty of Natural Science by Title
Now showing items 2506-2525 of 2597
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Ultrafilters and Compactification
(UWC, 2020)In this thesis, we construct the ultrafilter space of a topological space using ultrafilters as points, study some of its properties and describe a method of generating compactifications through the ultrafilter space. As ... -
Understanding mangrove dynamics in range edge populations in South Africa
(University of the Western Cape, 2023)Mangrove distribution along the East African region occurs from Somalia to South Africa, including Madagascar and other islands. It comprises approximately 10 species, including Avicennia marina (Forsk.) Vierh, Bruguiera ... -
Understanding spatial patterns of dispersal and deposition of fine sediment and adsorbed phosphates in the Wiesdrift Wetland on the Nuwejaars River, Cape Agulhas
(University of the Western Cape, 2021)River catchments in agricultural areas are strongly influenced by runoff from cultivated or grazed fields, and nutrient loading of these fields can result in large quantities of nitrates and phosphates being transported ... -
Understanding Striga occurrence and risk under changing climatic conditions across different agroecological farming systems at local and regional scales122
(University of Western Cape, 2020)The invasion by Striga in most cereal crop fields in Africa has posed an acute threat to food security and socioeconomic integrity. Consequently, numerous technological and research developments have been made to minimize ... -
Understanding the factors related to subjective well-being in the TB population: The South African perspective
(University of the Western Cape, 2020)Fifty percent of the world’s tuberculosis population is found in eight countries, one of which is South Africa. Of the eight countries, South Africa is said to be experiencing the highest burden of Tuberculosis, with an ... -
Understanding the factors that influence trust in e-services: a case study of a wireless mesh network implementation in Mankosi, South Africa
(University of the Western Cape, 2014)This thesis deals with the design of a business model for rural telephony based on a wireless mesh network for a rural community, the Mankosi community, located in the Eastern Cape Province of South Africa. Its aim is to ... -
Upper body pose recognition and estimation towards the translation of South African sign language
(University of the Western Cape, 2011)Recognising and estimating gestures is a fundamental aspect towards translating from a sign language to a spoken language. It is a challenging problem and at the same time, a growing phenomenon in Computer Vision. This ... -
Ursolic acid and oleanolic acid as novel therapeutic agents in breast cancer
(University of the Western Cape, 2015)Breast cancer is one of the most common cancers among women in South Africa and the second leading cause of cancer death after lung cancer. According to the American Cancer Society 2015, women have a 12% chance of developing ... -
Usability and content verification of a mobile tool to help a deaf person with pharmaceutical instruction
(University of Western Cape, 2014)This thesis describes a multi-disciplinary collaboration towards iterative development of a mobile communication tool to support a Deaf person in understanding usage directions for medication dispensed at a pharmacy. We ... -
Use and consumer perceptions of dietary supplements in the fitness community of Gaborone, Botswana
(University of Western Cape, 2020)Health authorities around the world, including stringent ones, struggle to regulate dietary supplements. Health claims and actual effects of these products on users therefore are not adequately studied and monitored. In ... -
Use of antioxidant activity and flavonoid levels to assess the quality of commercially available solid dose Sutherlandia frutescens products
(University of the Western Cape, 2010)The overall aims of this project were to assess the pharmaceutical quality and consistency of commercially available solid dose Sutherlandia frutescens containing products (viz. tablets & capsules) by exploring the use of ... -
The use of chemostratigraphy and geochemical vectoring as an exploration tool for platinum group metals in the Platreef, Bushveld Igneous Complex, South Africa : a case study on the Tweefontein and Sandsloot farms
(University of the Western Cape, 2015)The Platreef is known for its complexity and its heterogeneous lithologies, coupled with an unpredictable PGE and BMS mineralisation. The motivation behind this study was to aid mining geologists in targeting mineralisation ... -
The use of chemostratigraphy and geochemical vectoring as an exploration tool for platinum group metals in the Platreef, Bushveld Igneous Complex, South Africa: a case study on the sandsloot & overysel farms
(University of the Western Cape, 2014)The paucity of geochemical criteria for stratigraphic correlations and defining the styles of mineralisation pose serious problems in locating PGE-rich zones in the Platreef. This study is therefore aimed at identifying ... -
The use of constructed wetlands to ameliorate discharge water from coal mines in the Witbank Coalfield
(University of Western Cape, 2021)Mining has a lengthy history in South Africa, and subsequent beneficiation processes have been conducted with little regard for the environment, thus leaving the land with un-rehabilitated abandoned mines. Currently, most ... -
The use of cyclodextrin template-based metal oxide nanomaterials in the development of electrochemical sensors for phenolic endocrine disruptor compounds
(University of the Western Cape, 2010)Iron oxide nanoparticles were prepared using co-precipitation method in the presence and absence of beta-cyclodextrin β-CD). Such materials were characterized using transmission electron microscopy (TEM), energy dispersive ... -
The use of derivative analysis and aquifer parameter estimation to refine a conceptual model: A case study approach, Western Cape, South Africa
(University of Western Cape, 2021)Hydrogeological characterization of an aquifer system is a first step to determine groundwater quantity, yield potential, socio-economic value, storage capacity and aquifer transmissivity properties of an aquifer as a water ... -
The use of dioxy MP 14 (stabilized aqueous chlorine dioxide) to control environmental airborne microorganisms
(2009)Dioxy MP 14 is a locally developed form of stabilized chlorine dioxide in an aqueous medium. It has all the sanitizing properties of chlorine dioxide gas, a neutral compound of chlorine in the +IV oxidation state, which ... -
The use of Dioxy MP 14 (stabilized aqueous chlorine dioxide) to control environmental airborne microorganisms
(University of the Western Cape, 2009)Dioxy MP 14 is a locally developed form of stabilized chlorine dioxide in an aqueous medium. It has all the sanitizing properties of chlorine dioxide gas, a neutral compound of chlorine in the +IV oxidation state, which ... -
The use of FLUENT for heat flow studies of the hot-wire chemical vapor deposition system to determine the temperatures reached at the growing layer surface
(University of the Western Cape, 2009)The overall aim of this project is to study the heat transfer inside the reaction chamber of the Hot-Wire Chemical Vapor Deposition (HWCVD) system with a commercial software package FLUENT6.3; it is one of the most popular ... -
The use of gaming software and hive technology in the construction of virtual field education of the tanqua karoo
(University of the Western Cape, 2023)Geology is a field-based profession where it is mandatory for students to travel to distant locations for field-based training. However, in times such as the COVID-19 global pandemic, tight budget constraints, and large ...