Browsing Faculty of Natural Science by Issue Date
Now showing items 41-60 of 2597
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Science text: Facilitating access to physiology through cognition-based reading intervention
(University of the Western Cape, 1995)Reading and understanding science text is the principal means by which students at tertiary level access scientific information and attain scientific literacy. However, understanding and learning from science texts require ... -
A statistical investigation into the admissions criteria for the Electrical- and Mechanical Engineering courses at the Peninsula Technikon
(University of the Western Cape, 1995)Concern was expressed by the School of Electrical- and Mechanical Engineering and Computer Data Processing (School of EMC) regarding the School's admissions criteria for the Electrical- and Mechanical Engineering courses. ... -
Aspects of the reproductive physiology of male vervet monkeys maintained in a laboratory environment
(University of the Western Cape, 1995)In biomedical research limited use has been made internationally of African non-human primates. As a result, their reproductive physiology has been less well defined, when compared to the more commonly used macaque species. ... -
Pre-equilibrium cross section calculations with a realistic effective nucleon-nucleon interaction
(University of the Western Cape, 1995)The principle aim of this work is to improve the way in which pre-equilibrium double differential cross-sections are currently calculated [1, 2, 3, 4]. The theoretical basis for these calculations is the Multistep Direct ... -
The influence of maternal nicotine exposure on neonatal rat lung septal status
(University of the Western Cape, 1995)The aim of this study was to determine the effect of maternal nicotine exposure on the status of rat lung alveolar septa of 1 to 2l day old offspring. Wistar dams were injected subcutaneously, using a dosage of 1 mg ... -
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, ... -
The reproductive physiology of The south african pilchard.
(UWC, 1995)Epipelagic fish species form an integral component of the world's supply of protein. The most abundant of these fish belong to the order Clupeiformes (clupeoids) which include sardine, pilchard, sardinella, sprat, and ... -
Geographical studies on the interaction between the pear limpet, patella cochlear, and the encrusting coralline alga, spongites yendoi
(University of the Western Cape, 1995)The territorial pear limpet, Patella cochlear, occurs along the South and Southern West coasts of South Africa, while one of its primary prey, the encrusting coralline alga, Spon~ites yendoi, occurs much further north along ... -
The present-day frost action environment and its geomorphological significance in the Western Cape Mountains, South Africa
(University of the Western Cape, 1995)Studies on periglacial features in the Western Cape mountains provide a fragmented picture on the existence of both active and relict frost action in the region. As anywhere else in the country quantitative analysis and ... -
Aberrations in the Retinoblastoma susceptibility gene in tumours from South Africa oesophageal cancer patients
(University of the Western Cape, 1996)Little is known about the genetic events occurring in oesophageal cancer and very few studies have been undertaken to analyse oesophageal tumours from South African patients in this regard. Inactivation of numerous tumour ... -
An examination of a didactical procedure to engage first year university students in meaningful mathematical activity
(University of the Western Cape, 1996)The challenge to empower learners whose mathematical powers have been underdeveloped has lead the author to search for and implement teaching innovations designed to enhance students learning of mathematics. Undergraduate ... -
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 ... -
The adenomatous polyposis coli (APC) and p53 gene status in South African oesophageal cancer patients
(University of the Western Cape, 1996)Oesophageal cancer is the most conmon cause of cancer-related deaths in black males in South Africa. In an effort to understand the molecular nature of oesophageal carcinogenesis in South Africa, two tumour suppressor ... -
Singular integral equations and realization: A survey of the state space method
(University of the Western Cape, 1996)Different methods for solving singular integral equations exist. One of the most recent methods is the so-called state space method. This method is based on the fact that a rational matrix function VV(^) which is analytic ... -
Adenine nucleotides and selected chemical Parameters as potential markers for fertility assessment
(University of the Western Cape, 1997)Diagnostic andrology with its descriptive approach to the diagnosis of defective sperm for the last 40 years has focused mainly on the macro- and microscopic appearance of the ejaculate. More emphasis has recently been ... -
Computation of the character tables of certain group extensions
(University of the Western Cape, 1997)The work done in this mini-thesis deals mainly with different methods of calculating character tables of split extensions of finite groups. Three of the six character tables that are calculated are done with the use of ... -
The synthesis, characterization and reactivity of some mononuclear hydrocarbyl compounds of iron
(University of the Western Cape, 1997)Mononuclear hydrocarbyl compounds of the type LnM(CH2)nCH:CH2 (L"M : Cp*Fe(CO)2 and CpFe(CO)2, n: 2-4,6), Cp(CO)zFe(CH2)nOH (n : 4-6,8) and Cp*(CO)2Fe(CH2)+OH have been synthesized. All these compounds have been l3 fully ... -
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 ... -
Computation of the character tables of certain group extensions
(University of the Western Cape, 1997)In this chapter some basic theory on group extensions is first given in section 1.1 and then a method for finding the conjugacy classes of group extensions is described in section i.2. In section 1.3 we look at an example ... -
The synthesis and characterisation of iron and tungsten organometallic polymers with metal-carbon sigma bonds
(University of the Western Cape, 1997)A variety of olefinic organometallic monomers have been synthesised and polymerised under free-radical conditions. These monomers all contain a vinyl moiety as part of an organic fragment which is bonded via a metal-carbon ...