Browsing Faculty of Natural Science by Title
Now showing items 2167-2186 of 2565
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Some new bimetallic nickel and palladium complexes for catalysis applications
(University of the Western Cape, 2015)This thesis reports on the syntheses of new bimetallic iminopyridyl nickel(II) and palladium(II) complexes as catalyst precursors for ethylene ligomerization/polymerization. Tetrahydrophenyl-linked iminopyridyl ligands, ... -
Some non-standard statistical dependence problems
(University of the Western Cape, 2016)The major result of this thesis is the development of a framework for the application of pair-mixtures of copulas to model asymmetric dependencies in bivariate data. The main motivation is the inadequacy of mixtures of ... -
Some structural changes in educational enrolment and attainment levels within the female population of South Africa (2004-2007)
(University of the Western Cape, 2010)The purpose of this thesis is to investigate patterns in educational enrollment and attainment in educational levels among women in South Africa. Some evidence from the literature suggest a slow increase in women's education ... -
Sorption properties of natural zeolites for the removal of ammonium and chromium ions in aqueous solution
(University of the Western Cape, 2011)There are huge amount of natural clinoptilolite available in South Africa which can be utilised for wastewater treatment of ammonia and chromium if their characteristics are properly known. However, these deposits have not ... -
Source Rock Analysis, Thermal Maturation and Hydrocarbon Generation Modelling within the Southern Pletmos Basin, Offshore of South Africa
(University of the Western Cape, 2017)This study is a first attempt that integrates source rock geochemical evaluation, with analytic and numerical basin-modelling techniques to identify and ascertain the present-day configuration, spatial distributions, ... -
Sources of heavy metals in vegetables in Cape Town and possible methods of remediation
(University of the Western Cape, 2012)Cape Town includes two vegetable farming areas within the city limits, the Joostenbergvlakte/Kraaifontein area and the Philippi area. Both areas supply produce to local markets and further afield. Sporadically, high levels ... -
Sources of heavy metals in vegetables in Cape Town, and possible methods of remediation
(University of the Western Cape, 2012)Cape Town includes two vegetable farming areas within the city limits, the Joostenbergvlakte/Kraaifontein area and the Philippi area. Both areas supply produce to local markets and further afield. Sporadically, high levels ... -
South African medicinal plant extracts used in the treatment of fungal infections.
(University of the Western Cape, 2023)The incidence of fungal skin infections is increasing at an alarming rate, especially in people with underlying immunosuppressive conditions. Currently, the most used methods of treatment are in the azole group of synthetic ... -
South African patent law : developing a balance between the rights of the patients and promoting innovation within the pharmaceutical industry
(University of the Western Cape, 2015)Background: In South Africa many patented medicines are either unavailable or carry prices that most patients cannot afford. The effects of the patents systems on patient access could greatly depending on how the burden ... -
South African Sign Language Hand Shape and Orientation Recognition on Mobile Devices Using Deep Learning
(University of the Western Cape, 2017)In order to classify South African Sign Language as a signed gesture, five fundamental parameters need to be considered. These five parameters to be considered are: hand shape, hand orientation, hand motion, hand location ... -
South African sign language recognition using feature vectors and Hidden Markov Models
(University of the Western Cape, 2010)This thesis presents a system for performing whole gesture recognition for South African Sign Language. The system uses feature vectors combined with Hidden Markov models. In order to constuct a feature vector, dynamic ... -
South African Sign Language Recognition Using Feature Vectors and Hidden Markov Models
(University of the Western Cape, 2010)This thesis presents a system for performing whole gesture recognition for South African Sign Language. The system uses feature vectors combined with Hidden Markov models. In order to construct a feature vector, dynamic ... -
Spartial distribution of cyanobacterial phylotypes in Antarctic Dry Valley soil biotopes
(University of the Western Cape, 2007)Recent advances in moleculr methods have enabled the analysis of cyanobacterial diversity using PCR- based approaches. Snap-shot techniques such as 16S rDNA library construction and DGGE have allowed for increased access ... -
Spatia-temporal dynamics in land use and habitat fragmentation in the Sandveld, South Africa
(University of the Western Cape, 2010)The Cape Floristic Region (CFR) in South Africa, is one of the world's five Mediterranean hotspots, and is also one of the 34 global biodiversity hotspots. It has rich biological diversity, high level of species endemism ... -
Spatial analysis of open space in the quaternary catchment of the Lourens river
(2011)This thesis looks at aspects relating to vegetated open space in the quaternary catchment of the Lourens River, Cape Town, South Africa in 2005 and at GoogleEarth as a source of imagery for research. The research questions ... -
Spatial and temporal dynamics of flows and pools along non-perennial rivers in arid and semi-arid areas, South Africa
(University of the Western Cape, 2023)This study aimed to assess the use of multi-source remotely sensed data for monitoring the spatial distribution and dynamics of pools in two distinct sites (Touws and Molototsi) in South Africa. Various water extraction ... -
Spatial and temporal variation of inundation in the Okavango Delta, Botswana; with special reference to areas used for flood recession cultivation
(University of the Western Cape, 2015)The Okavango Delta is recognized as one of the famous inland wetlands and its sustainable use is important for socio-economic development of Botswana. The Okavango delta comprises permanent swamps, seasonal swamps, and ... -
Spatial and temporal variations of inundation and their influence on ecosystem services from a shallow coastal lake. A case study of Soetendalsvlei in the Nuwejaars catchment, South Africa
(University of Western Cape, 2021)Enhancing our understanding of wetland properties and the ecosystem services provided by wetlands within a dynamic landscape, is fundamental to ensuring appropriate management strategies for enhanced biodiversity and ... -
Spatial characterization of vegetation diversity with satellite remote sensing in the khakea-bray transboundary aquifer
(University of Western Cape, 2022)There have been increasing calls to monitor Groundwater-Dependent Ecosystems (GDEs) more effectively, since they are biodiversity hotspots that provide several ecosystem services. The accurate monitoring of GDEs is an ... -
Spatial distribution and abundance of microplastics particles in the bed sediment of Zeekoevlei Lake, Cape Town
(University of Western Cape, 2021)Microplastics (MPs) are an emerging micro-pollutant that pose a threat to the ecological integrity of freshwater rivers and wetlands. Most previous work on MPs pollution has focused on marine environments. This study aimed ...