Faculty of Natural Science: Recent submissions
Now showing items 141-160 of 2593
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A critical analysis of the pre-calculus course at U.W.C.
(University of the Western Cape, 2002)Mathematical knowledge and skills have, over the last few decades, become very important in terms of study and work opportunities. Unfortunately, schools in South Africa have not met the expectations of their pupils or the ... -
The chemical groundwater characteristics of the Sutherland area, Northern Cape
(University of the Western Cape, 1998)The objectives of the project were to establish, identify, interpret and map the chemical groundwater composition of the area surrounding the town of sutherland' Processes that govern the groundwater chemistry of the area ... -
The experimental cultivation and alginate properties of South African kelps
(University of the Western Cape, 2003)Alginates are used in various industries and the quality of alginates used must be controlled. Alginates used for medical purposes must be of a very high quality. The cost of obtaining high-quality alginate is high and ... -
Structural and functional aspects of sperm after transit through the fallopian tube of the sheep
(University of the Western Cape, 1996)Ejaculated mammalian spermatozoa have the potential for fertilization. The acquisition of the ability to fertilize a fully invested oocyte occurs during the passage through the female reproductive tract. These post-ejaculatory ... -
Assessing the high-risk behaviour of first year students entering the University of the Western Cape
(University of the Western Cape, 2007)Globally, new HIV infections are heavily concentrated among the youth, i.e., persons aged 15-24 years old (UNAIDS, 2006b). In South Africa, the estimated national HIV prevalence was 10.4% among the youth in 2006 (Dorrington ... -
Study of the use of Electret Ion chambers as radom dosimeters in South Africa
(University of the Western Cape, 2002)Radon is a naturally occuring radioactive gas which has been shown to be a major contribution to background dose. The underground mines in South Africa present a major occupational hazard. A need for cheap personal monitoring ... -
Pyrazolyl palladium complexes with heterocyclic carbonyl linkers as catalyst precursors for ethylene and phenylacetylene polymerization.
(University of the Western Cape, 2003)The pyrazolyl ligands 2,6-bis(3,5-r2p*azolylcarbonyl)pyridine {r : 'bu (l1), me (l2)),2,6-bis(3-methylpyrazolylcarbonyl)pyridine(l3)'2'6- bis(pyrazolylcarbonyl)pyridine (l4) and 2,5-bis(3,5-rzpyrazolylcarbonyl)thiophene { ... -
The influence of maternal nicotine exposure on development lung as gas exchanger: the protective effect of copper
(University of the Western Cape, 1998)The influence of tobacco smoking on the developing fetus is well reported. Maternal nicotine exposure during pregnancy and lactation interferes with fetal and neonatal lung growth and development, rendering the lungs more ... -
Molecular, functional and biological characterization of a single enveloped nucleopolyhedrovirus infecting the crop pest Helicoverpa armigera
(University of the Western Cape, 2002)My study involves a detailed molecular and cellular characterisation of a South African isolate of a nucleopolyhedrovints (I.IPV) isolated from the Lepidopteran insect Helicoverpa armigera (HaSNPV-SA). Chapter two entails ... -
The identification of potential groundwater zones in the Kamiesberg region, Northern Cape province, South Africa
(University of the Western Cape, 2003)The aim of the study is to apply remote sensing techniques to identify potential groundwater resources for the Kamiesberg region. This region, with vast water shortages relies solely on groundwater and is characterized by ... -
Titanium compounds and plant growth
(University of the Western Cape, 2001)The effect of titanium compounds on the growth of tomato plants, Lycopersicum esculentum (cultivar Floridade), was studied under greenhouse conditions. Aqueous suspensions (TiO2) and solutions (complexes of titanium (IV) ... -
Computational analyses on transcriptional regulation in mammals
(University of the Western Cape, 2009)The genomes of various organisms have been sequenced and their transcriptome elucidated. With the information about genes and gene products readily available it has become of the utmost importance to decipher the underlying ... -
Analyses of sequence divergence using completely sequenced genomes
(University of the Western Cape, 2003)Using the complete genome, Saccharomyces cerevisiae, which duplicated after its speciation fuom Kluyveromyces lactics, a dataset of 119 putative S. cerevisiae - K. lactis ortholog-pairs was constructed. S. cerevisiae ... -
identification of Quantitative Tralt Locl Controlling the Requirement for chilling ln Vegetative budbreak in apple (malus x domestica Borkh')
(University of the Western Cape, 2007)The domesticated apple (Malus x domestica Borkh.) has been distributed into diverse climatic conditions worldwide for commercial production of fruit. Apple trees need exposure to cold temperatures, referred to as chill ... -
Conjugacy classes of some projective linear groups
(University of the Western Cape, 1992)Given a finite set X of distinct symbols the symmetric group Sx and the alternating group Ax are obtained without further constructions. More interesting groups are contrived, however, by imposing a certain structure on ... -
Computing Mislin genera of certain groups with non-abelian torsion radicals
(University of the Western Cape, 2004)In this mini-thesis we present some generalities of non-cancellation and localization and we compute non-cancellation groups. We consider groups belonging to the class X0 of all finitely generated groups that have finite ... -
Left versus right canonical wiener-hopf factorization for rational matrix functions: an alternative version
(University of the Western Cape, 1995)It is an established fact that both canonical and non-canonical Wiener-hopf factorizations of matrix functions play an important role in various aspects of mathematical analysis and its applications. Indeed, for instance, ... -
A critical analysis of aspects pertaining to the teaching of the ecology section of the standard eight biology syllabus.
(University of the Western Cape, 1991)In this study an attempt has been made to investigate how the Ecology section (suitable for fostering awareness and concern for the environment) of the standard eight Biology syllabus is taught. Since fieldwork and ... -
Hydro geochemical characteristics of the basement aquifers in namaqualand
(University of the Western Cape, 2003)At the onset of this research programme it became apparent that there is a dearth of research studies focusing on the groundwater resources of the region. As a result, a conceptual representation of the hydrogeological ... -
The synthesis of methoxy-2-hydroxy-1,4- naphthoquinones and their reaction with aliphatic aldehydes under basic conditions.
(University of the Western Cape, 2003)Although literature reports on the synthesis of variously substituted 2-hydroxy-1 ,4- naphthoquinones appeared to be reasonable; in our hands difficulty was experienced in duplicating much of the work. In order to address ...