Faculty of Natural Science: Recent submissions
Now showing items 121-140 of 2566
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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 ... -
Thiolato schiff base complexes of nickel and palladium as mesogens and molecular wires
(University of the Western Cape, 2003)Thermal analysis data of compounds A, C, F and I established that they were nonmesogenic while E and G were found to be mesogenic. The lack of mesogenic behaviour of A could be attributed to hydrogen bonding. The ... -
An investigation of the plants used medicinally In self-care in the Bredasdorp / Elim region
(University of the Western Cape, 2004)Much of the traditional medicinal plant knowledge is to a large extent known by the older generations. This knowledge is at risk of disappearing due to not being passed down to younger members of the respective families ... -
An assessment of the virulence of listeria spp. isolated from raw milk and raw chicken
(University of the Western Cape, 1994)Listeria a f~rn__e pathogen is the etiological agent of the deadly disease listeriosis. Although, the virulence traits of international isolates of Listeria are well studied, nothing is known about the virulence traits ... -
Generalization of a theorem of fitting on the product of two normal nilpotent subgroups of a group
(University of the Western Cape, 1977)Fitting proved that if H and K are normal nilpotent subgroups of G, then so is HK (t1 l'Hilfssatz 10, p. 100). The question arises if this result could be generalized to other group theoretical properties -
Triterpene glycosides chemically defend the south african kelp bed sea cucumber, Pseudocnella insolens (echinodermata : holothu roidea), against predation.
(University of the Western Cape, 1997)The small, subtidal sea cucumber, Pseudocnella insolens appears to have no obvious protection from predation, yet it occurs in dense colonies covering rocky areas and appears to have few predators. Laboratory-based feeding ... -
Palladium surface-modified rare earth metal-based ab5 type hydride-forming materials
(University of the Western Cape, 2008)Driven by mounting standards of living and a growing population, South African energy consumption is expected to increase dramatically within the next decade. The increased demand for more energy will require enormous ... -
Genetic variation among verticillium dahliae isolates using pathogenicity and aflp analysis
(University of the Western Cape, 1999)Soilborne plant pathogenic fungi have had an important economic and social impact on humans since the evolution of agricultural societies (Stakman, 1959). In South Africa, the soilborne pathogen Verticillium dahliae Kleb, ... -
Intense pulsed neutron generation based on the principle of plasma immersion ion implantation technique (PIp3s) technique
(University of the Western Cape, 2006)The development of a deuterium deuterium/ tritium-deuterium (D-D/ D-T) pulsed neutron generator based on the principle of the Plasma Immersion Ion Implantation 1Pl) technique is presented, in terms of investigating development ...