ABSTRACT This dissertation offers a comprehensive account of the origin, nature and development of theatre under the auspices of the Arts Association as a cultural activity in South West Africa as it was called until 1968. In 1947 a branch of the South African Association of Arts, a Fine Arts organisation in South Africa was established in Windhoek, South West Africa. The association organised and developed the Performing Arts in addition to the Visual Arts. The Arts Association saw theatre ...
ABSTRACT The distribution of malaria in Namibia is mainly confined to the northern parts of Namibia. Although the malaria vectors were presumed to be Anopheles arabiensis, a member of the Anopheles gambiae group of morphologically similar species, no scientific study had been undertaken to identify the species in Namibia. Given the variable behaviour of this species, in an area where the mainstay for vector control has been indoor residual house spraying (IRS) with 75% DDT wettable powder si...
ABSTRACT Namibian health care workers (health care workers) are affected in providing quality health care services to people who are living with HIV / AIDS (PLWHA) if they do not have the necessary knowledge, as well as adequate interpersonal communication and counselling skills. In a health care facility set-up, all patients either come from the community or are referred from the wards or other departments by health care workers. The health care worker as a (sender) conveys information (mes...
Abstract The Faint Low-Frequency Radio Universe in Continuum: Exploitation of the Pre-SKA Deepest Survey This thesis presents a thorough and significant work on the properties of radio sources as derived from deep 610-MHz GMRT data and ancillary multi-wavelength data. The faint radio sources at 610-MHz are found out to distances such that the objects are seen as they were when the universe was less than half its current age. These data provide a first look at the faint radio sky at sensitivit...
Abstract Building on current knowledge, the primary aim of the present study was to assess psycho-social correlates of Masculine Gender Role Conflict (MGRC) among homosexual men and to posit and test a model by which the variables (psychological well-being, gay identity development and attitudes towards psychological help seeking behaviour) are related to MGRC. Guided by the Male gender role conflict theory, survey and interviews were used to collect data from 175 homosexual men. The data ana...
Abstract Obligate brood parasites lay their eggs in the nests of other species, foisting the costs of parental care onto the host parents. The success of the parasite and host are then at odds, with both parties evolving defences and countermeasures in an evolutionary arms race. This reciprocal influence of acting upon both species’ evolution — a process known as coevolution — has forged the natural world around us. Avian brood parasites and their hosts are now model systems for studyin...
Abstract The development of enhanced selectivity of a host towards (aromatic) isomers continues to be an important feature in supramolecular studies. In this thesis, several nickel Werner complexes have been synthesised and used as crystallographic hosts with inclusions of aromatic isomers, polycyclic aromatic hydrocarbons, alcohols or ketones. Thermogravimetric methods were used to confirm the composition of the host-guest complexes and were employed to analyse their thermal behaviour. Struc...
SHORT ABSTRAC Over the past decade there has been global concern about the bycatch of seabirds, turtles and sharks in fishing operations, in particular longline and trawl fisheries, which have been widely held responsible for their declining populations and threatened conservation status. This thesis addresses the issue of bycatch in a holistic manner, taking into account that species, whether they be target or non-target, do not exist in isolation from each other and their environment. South...
ABSTRACT Nel, J.L. 2008. Enhancing the conservation of freshwater biodiversity through improved freshwater conservation planning techniques. PhD thesis, University of Cape Town. Freshwater ecosystems and biota are among the most endangered in the world. This current situation is even more disturbing when future threats of escalating human demand and global climate change are considered. Urgent measures are therefore needed to conserve freshwater ecosystems and sustain the services they provid...
Abstract This thesis uses phylogenetic and comparative data to test an hypothesis of adaptive radiation in the Cape grass genus Ehrharta Thunb. sensu stricto. Morphological data and sequence data from two noncoding regions of DNA (lTS1 and trnL-F) are used to produce a phylogenetic hypothesis for the tribe Ehrharteae. Combined analysis of these data sets resolves four principal clades that approximate the genera Ehrharta s. s., Micro/aena, Tetrarrhena and Zotovia and this result thus supports...
ABSTRACT Most researchers agree that work placement has a positive influence on students’ employability. Despite this consensus, there has been conflicting research on the factors that contribute to this influence. Moreover, the social mechanisms through which this outcome is realised have not been well understood. To address these shortcomings, this study explores how mechanical engineering students’ work placement experiences facilitate or hinder the growth of their occupational compete...
1.1Background and Motivation Impact evaluation studies are designed to get at the impact of a policy or treatment. The aim is often to assess the viability or success of an intervention. These studies are also useful in cost-benefit analyses for gauging the size of the benefit attributable to an intervention. It is therefore important for an estimated treatment effect to be as free from bias as possible. The object of interest is often the Average Treatment Effect on the Treated (ATT), which ...
ABSTRACT The research investigated some mechanical properties of aluminium waste concrete to harness its structural properties in the construction industry. Aluminium waste which was obtained from Aluminum Extrusion Industry (ALEX) Inyishi in Ikeduru Local Government Area of Imo State was investigated. The mathematical models for the optimization of the compressive and flexural strengths of a five-component concrete mix was obtained. A computer program for the optimization of the compressive...
SUMMARY 'Koko1 was prepared in the laboratory from Ghanaian maize. The effect of grinding and sieving on the protein content wa3 determined. Protein losses were highest with the coarsest grinding. Starters were used in the fermentation and were found to increase the rate of acid production. Preservation of 'Koko' was carried out by Roller-drying, Spraydrying, Freeze-drying and Canning. The volatile constituents of the flavours were lost during Roller-drying and Spray-drying. Freese- • dryin...
ABSTRACT Relative performance of breed groups, additive and heterotic effects on milk production, reproduction and calf growth traits in Jersey x West African Shorthorn (WAS) and Jersey x Sokoto Gudali (GUD) crossbred cattle were studied using sixteen years field records kept at the Agricultural Research Station, Legon. The genotypes consisted of WAS; 1/2 Jersey, 1/2 WAS (WAS Fj); 3/4 Jersey, 1/4 WAS (WAS Be); GUD; 1/2 Jersey, 1/2 GUD (GUD Fj) ; 3/4 Jersey, 1/4 GUD (GUD Be). Milk production t...