Browsing by Title
Now showing items 6021-6040 of 8918
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Optical and microarray silver-gold based sensors for the detection of e.coli 0157:h7 in seawater
(University of the Western Cape, 2021)Recently researchers reported that nanoparticles functionalised through chemical methods possess risks to the environment and to the human health since they use hazardous chemicals and produce toxic waste. The increasing ... -
Optical emission spectroscopy of laser induced plasmas containing carbon and transitional metals
(University of the Western Cape, 2008)The spectroscopic, SEM and Raman measurements on carbon nanotubes under the exact conditions of which OES analysis were made showed that at a pressure of 400 Torr and a flow rate of 200 sccm, the quality and quantity of ... -
Optical modeling of amorphous and metal induced crystallized silicon with an effective medium approximation
(University of the Western Cape, 2009)In this thesis we report on the metal-mediated-thermally induced changes of the structural and optical properties of hydrogenated amorphous silicon deposited by hot-wire CVD, where aluminium and nickel were used to induce ... -
Optical properties of annealed hydrogenated amorphous silicon nitride (a-SiNx:H) thin films for photovoltaic application
(2013)Technological advancement has created a market for large area electronics such as solar cells and thin film transistors (TFT’s). Such devices now play an important role in modern society. Various types of conducting, ... -
Optimal asset allocation and capital adequacy management strategies for Basel III compliant banks
(University of the Western Cape, 2015)In this thesis we study a range of related commercial banking problems in discrete and continuous time settings. The first problem is about a capital allocation strategy that optimizes the expected future value of a commercial ... -
An optimality theoretic account and systemic functional linguistics analysis of the acquisition of cicewa idiom interpretation by cicewa speaking children in Malawi
(University of the Western Cape, 2014)This research is in the area of child language acquisition, especially, acquisition of figurative language. It investigates how native Cicewa speaking children learn to interpret Cicewa idioms. This is done through examination ... -
Optimisation of a microfluidic device for the pre-concentration and size separation of cell free foetal DNA from maternal plasma by capillary electrophoresis
(University of the Western Cape, 2012)The discovery of cell free foetal DNA (cffDNA) in 1997 allows for the combination of accuracy as well as non-invasiveness for prenatal diagnosis. This non-invasive genetic test requires only a maternal blood sample from ... -
Optimisation of biodiesel production via different catalytic and process systems
(University of the Western Cape, 2011)The production of biodiesel (methyl esters) from vegetable oils represents analternative means of producing liquid fuels from biomass, and one which is growing rapidly in commercial importance and relevance due to increase ... -
Optimisation of proteomics techniques for archival tumour blocks of a South African cohort of colorectal cancer
(University of Western Cape, 2020)Tumour-specific protein markers are usually present at elevated concentrations in patient biopsy tissue; therefore tumour tissue is an ideal biological material for studying cancer proteomics and biomarker discovery studies. ... -
Optimisation of selective extraction techniques as a tool for geochemical mapping in the Southern Africa region
(University of the Western Cape, 2008)The complex nature and composition of regolith cover in Southern Africa is a major challenge to geochemical mapping for concealed mineralization. Some of the setbacks to successful geochemical exploration may be ascribed ... -
Optimising benefits for rural communities in and around Protected Areas through ecotourism Public Private Partnerships (PPPs): the case of De Hoop Nature Reserve
(University of the Western Cape, 2019)Recent years have seen an upsurge of interest from governments and development organisations in adopting the Public Private Partnership (PPP) approach when developing and operating ecotourism projects. A PPP is a contract ... -
Optimising business architecture maturity for enhanced alignment of business and IT
(University of the Western Cape, 2022)There are several inputs from industry observers of the continued plight of aligning Business with IT. Alignment today is regarded by numerous as one of the most important aspects for successful businesses. It is noted ... -
Optimization of lead halide perovskite thin films by chemical vapour deposition
(University of Western Cape, 2021)Perovskite solar cells have gained tremendous attention within the past decade, due to its rapid improvement in power conversion e ciency (PCE), with the current record cell at 25%. The aim of this study is to create ... -
Optimizing embryo culture conditions and spent culture media analysis as predictors of embryo quality and pregnancy
(University of the Western Cape, 2021)The aim of this thesis is first, to evaluate various culture conditions to improve embryo development, and secondly, to analyze spent culture media for any biomarkers that may be predictive of embryo health. Single-step ... -
Optimizing the ion source for polarized protons
(University of the Western Cape, 2005)Beams of polarized protons play an important part in the study of the spin dependence of the nuclear force by measuring the analyzing power in nuclear reactions. The source at iThemba LABS produces a beam of polarized ... -
Opting for silence: A history of the history of the Golden Arrow Bus Services drivers’ strike of 1992
(University of the Western Cape, 2014)The primary purpose of this research is to examine the production of history and oral history related to Golden Arrow Bus Services in Cape Town, with specific reference to the silences regarding the bus drivers’ strike in ... -
Oral & perioral piercing in Tshwane
(University of the Western Cape, 2007)This study investigated the common sites and complications associated with oral and perioral piercings, and the oral hygiene practices of people with piercings (piercees)' The attitude and behaviour of piercers towards the ... -
Oral cancer (I.C.O 140-146) in South Africa with special reference to its occurrence among the Cape coloured and Indian people of the Cape Peninsula
(University of the Western Cape, 1980)Aangesien 'n nasionale register vir maligniteit nie bestaan waarin informasie ten opsigte van kanker onder die verskillende bevolkings groepe van Suid-Afrika nagegaan kan word nie, kan die verspreidings patroon alleenlik ... -
Oral cancer knowledge, attitudes and practices among dentists in Khartoum State, Sudan
(University of the Western Cape, 2014)The aim of the present study was to determine the knowledge, attitude and practice of dentists related to oral cancer prevention and early detection in public dental clinics in Khartoum State, Sudan -
Oral health and nutritional status of the children under five years, Queen Elizabeth II Hospital, Maseru, Lesotho
(University of the Western Cape, 2006)The aim of this study was to compare the oral health status between well and malnourished children under five years old attending Mother and Child Health clinic in Queen Elizabeth II Hospital in Maseru, Lesotho.