Browsing Faculty of Natural Science by Title
Now showing items 1923-1942 of 2565
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Preparation and electrospinning of chitosan from waste Black Soldier Fly biomass
(University of the Western Cape, 2018)Black soldier flies are important in sustainability because of their ability to voraciously degrade organic waste without constituting a nuisance to the environment. In South Africa, Agriprotein Ltd, a company producing ... -
Preparation and physico-chemical properties of nickel nanostructured materials deposited in etched ion-track membrane
(University of the Western Cape, 2005)The development of finely dispersed powders and superfine-grained materials intended for application in various areas of science and engineering is one of the challenges facing modern nanotechnology. Thus, specific fundamental ... -
The preparation of an immunosensor for the detection of microcystins and nodularins by immobilisation of a labelled antibody onto a polymer modified electrode
(University of the Western Cape, 2011)South African dams and reservoirs are increasingly showing the propensity to support sustained populations of Cyanobacteria (blue green algae). These photosynthetic bacteria occur throughout the world and can rapidly form ... -
The preparation of binuclear and polynuclear methyl complexes of palladium as catalyst precursors in phenylacetylene polymerization
(University of the Western Cape, 2007)This study focused on the development of binuclear and multinuclear catalyst for use in vinylic monomer oligomerization and polymerization. The main objective was to develop new homogeneous catalysts systems with hopefully ... -
Preparation, characterisation and evaluation of Artemisia afra phytosomes with modified release properties
(University of the Western Cape, 2017)Dissolution studies on various dosage forms (powder, tablets, teabags and alginate beads) of the Artemisia afra freeze dried aqueous extract (FDAE) all exhibit a rapid release profile. Generally, such a release profile may ... -
Prescribing practice at a tertiary level paediatric hospital in South Africa
(University of the Western Cape, 2014)The objectives of the present study were to describe the type and frequency of prescribing errors and error frequency, to determine the error frequency for different drug classes, to identify potential drug interactions ... -
The presence and concentration of antiretroviral drugs in different water bodies around the Western Cape
(University of the Western Cape, 2023)Concerns regarding the prevalence of chemicals from medicines and personal care goods, such as cosmetics, in streams and rivers have grown in recent years. Water quality experts and environmentalists are becoming increasingly ... -
Prestasiemotivering by studente aan die Universiteit van Wes-Kaapland.
(University of the Western Cape, 1991)The major objective of this study was to investigate the nature of the relationship between achievement motivation, autonomous and social achievement values, study habits and attitudes, locus of control and socio-economic ... -
Prevalence and characterization of Gardnerella vaginalis in pregnant mothers with a history of preterm delivery
(University of the Western Cape, 2012)Risk factors such as intrauterine and vaginal infection put pregnant women at risk for delivering preterm. Bacterial vaginosis (BV) is a polymicrobial clinical syndrome commonly diagnosed in women of reproductive age, with ... -
The prevalence and survival of Campylobacter, Salmonella and Listeria species in poultry processing plant
(University of the Western Cape, 2004)The organisms in this study were chosen due to their associations with foods and their potential as food borne pathogens. Food borne diseases are an import public health problem in most countries. Bacteria of the genera ... -
The Prevalence of Members of the “Red Complex” in Pregnant Women as Revealed by PCR and BANA Hydrolysis.
(University of the Western Cape, 2005)Increased levels of oestrogen and progesterone during pregnancy may lead to periodontal disease. The anaerobic Gram-negative bacteria called red complex (Porphyromonas gingivalis, Tannerella forsythensis and Treponema ... -
Prevalence of uncontrolled hypertension and the pharmacogenomics of enalapril-induced adverse effects among patients in the Vhembe district
(University of the Western Cape, 2022)Controlling blood pressure (BP) among individuals with hypertension is important in the prevention of cardiovascular diseases (CVDs). However, maintaining optimal BP levels in individuals who are prone to drug-induced ... -
The prevalence, risk factors and serotypes of GBS in Libyan women at labour and the rate of vertical transmission of GBS from mother to infant
(University of the Western Cape, 2022)Group B Streptococcus (GBS) also known as Streptococcus agalactia, is one of the most important causes of serious neonatal infections. Early detection of GBS colonisation in the mother is thus of primary importance to ... -
Pricing American style employee stock options having GARCH effects
(University of the Western Cape, 2010)We investigate some simulation-based approaches for the valuing of the employee stock options. The mathematical models that deal with valuation of such options include the work of Jennergren and Naeslund [L.P Jennergren ... -
Pricing European options : a model-free approach
(University of the Western Cape, 2016)This paper focuses on the newly revived interest to model free approach in finance. Instead of postulating some probability measure it emerges in a form of an outer-measure. We review the behavior of a market stock price ... -
Pricing methods for Asian options
(2010)We present various methods of pricing Asian options. The methods include Monte Carlo simulations designed using control and antithetic variates, numerical solution of partial differential equation and using lower bounds.The ... -
Probing galaxy evolution below the noise threshold with radio observations
(University of the Western Cape, 2020)The faint radio population consisting of star forming galaxies (SFG) and radio-quiet active galactic nuclei (AGN) is important in the study of galaxy evolution. However, the bulk of the faint population is below the ... -
Probing large-scale structure with the SKAO and other cosmological surveys
(University of the Western Cape, 2022)In recent history there have been several advances in cosmology, which has significantly shaped our understanding of the Universe. The current leading theory is called ΛCDM, which can successfully model the expansion of ... -
Probing the expansion history of the universe using upernovae and Baryon Acoustic Oscillations
(University of the Western Cape, 2016)The standard model of cosmology (the ɅCDM model) has been very successful and is compatible with all observational data up to now. However, it remains an important task to develop and apply null tests of this model. These ... -
Probing the large-scale structure of the universe with correlation functions
(University of the Western Cape, 2014)In this project we explore a new statistical package called KSTAT that computes the 2PCF and higher order correlation functions, such as the 3PCF, on BOSS, making use of high performance computing facilities to improve ...