Thesis (MComm (Business Management))--University of Stellenbosch, 2005. / Tulips are the second largest floral commodity that is traded globally. Currently Holland controls half of the 20 billion Dollar tulip bulb market, although immense pressure from European institutions may serve to change this phenomenon in the near future. Not only do increasing labour costs and stricter legislation on the usage of pesticides impair this industry, but the Dutch government also places huge pressure on its own producers to convert scarce agricultural land into residential areas. These conditions could therefore provide a possible market opportunity for farmers from other countries. Due too the fact that the price of tulip bulbs is based on the size of the flower and the length of the floral stem, floral farmers generally gain an extra 2-3 cm stem length via physically cutting it out of the tulip bulb. Therefore, floral farmers annually destroy their whole supply of tulip bulbs, resulting in a need to reacquire bulbs from bulb growers. Due to the fact that the lifespan of cut tulip flowers is generally not more than seven days, Dutch land rezoning ought to result in tulip bulb production being the production component which could truly be relocated in a global context. In this study, an economic analysis is therefore conducted to ascertain South Africa’s potential to produce tulip bulbs in order to supply the growing demand in the Netherlands. Information was gathered by performing a literature study of existing literature and by conducting structured interviews with numerous experts in their various fields of operation. Due to the fact that expertise in South Africa was very limited, a large number of interviews were scheduled with experts from Holland and Germany. The presence of strict non-disclosure contracts resulted in a situation where interviews had to be conducted with individuals who are two to three levels removed from any relevant tulip organisation. The study was conducted through first analysing the global market from a horticultural perspective and thereafter from an economic-logistical stance. It was established that tulip bulbs are very temperature sensitive and therefore have to be produced far from any tropical zones. Since Sutherland’s winter temperature is similar to that of Dutch production areas, South African tulip bulbs could be planted in Holland. The difference in seasons of production allows farmers from the Southern Hemisphere to predict the extremely fashion sensitive market in one year less. Via moving production activities between alternative hemispheres, off seasons can be utilized for production, which could result in fashions being predicted with a greater sense of accuracy. If unfashionable bulbs are produced, a loss of up to R 34 129,87 per ha can be incurred, while mid-priced bulbs and fashionable bulbs can earn respectively R80 118,09 and R 122 626,57 per ha. Projections are however based on the prices of a bear phase where the market currently pays up to 75% less for bulbs than it did three years ago. The production costs in Sutherland could be cut by R 15 750 if it is decided to mechanise production but simultaneously this action will result in an increase of R120 000 in new capital equipment required. The use of 40 feet High Cube Reefers reduces transportation costs considerably and 1 042 437 bulbs with a circumference of between 10 and 12 cm can be shipped in such an container via utilizing South African produced SN 64190 crates and four way export pallets. Market penetration remains an important consideration since a farmer’s production history is very important in the international market environment. Partnerships, production of larger bulbs, organic production and seasonal production in alternating hemispheres, remain some of the most suitable techniques for market penetration.

Thesis (MBA)--Stellenbosch University, 2013. / The South African Northern Cape Department of Health has many challenges to overcome in order to provide the province with quality public health care. One of these challenges is the recruitment and retention of foreign doctors in order to maintain and improve on the population’s access to physicians. Due to the lack of locally trained physicians willing to work and settle in the Northern Cape Province, the Department of Health in the province have been employing foreign-trained physicians to fill the gap in providing adequate medical care to its population. This study examined how well foreign doctors have integrated into the Northern Cape public health care system. It further identified, described and explored the factors that might influence the integration of these foreign physicians. This was done in order to make recommendations to improve the existing retention strategies of the Northern Cape Department of Health. This research utilised the mixed-method of research by obtaining secondary qualitative as well as primary quantitative data. The qualitative data were obtained through a literature review. Questionnaires informed by the literature review were utilised in order to obtain the primary quantitative data. The data obtained were subjected to a statistical analysis.The results indicated that the needs of the foreign doctors were generally met and the factors pertaining to work, community and family aspects of integration did not have an overtly negative or positive influence on integration. The results pertaining to rurality were not as prominent as expected. The main factors identified related to relational (professional as well as personal) factors. The researcher concluded that relational factors contributed the most as they had an influence on all the categories of possible factors that might influence integration. This finding stressed that the social phenomena that influence integration should not be overlooked. The implementation of interventions to improve integration and retention should be accompanied by a detailed examination of the factors that affect the recruitment, integration and retention of the workforce in a country/region. This research could be an important step towards achieving this goal for the Northern Cape Department of Health.

M.Sc. / It is the focus of the study to qualitatively describe and then quantify the mineralogical and geochemical changes associated with the supergene alteration of carbonate-rich braunite lutite (Mamatwan-type ore) immediately below the Kalahari unconformity along the southeastern suboutcrop perimeter of the Hotazel Formation in the Kalahari deposit. It was also the objective of this study to determine the timing and duration of supergene alteration. Samples for polished thin sections were carefully selected from eight representative boreholes to be representative of all the lithostratigraphic zones and ore types. The thin sections were used to study mineralogy by means of reflected light microscopy and scanning electron microscopy. X-ray powder diffractometry on representative powder samples were used to study the mineralogy and geochemistry of the samples. Microprobe analyses were also performed on the representative samples. Finally the samples were submitted for 40Ar/39Ar geochronology. In this supergene enrichment zone carbonates are leached (associated with an increase in porosity) and Mn2+/Mn3+ -bearing minerals (kutnahorite, Mn-calcite an braunite) are altered to supergene Mn4+-bearing mineral phases (todorokite and manganomelane) and minor quartz. This process upgrades ore from 38 wt% Mn to ore with more than 40 wt% Mn. Element fluxes, enrichment and depletion of major and trace elements were quantified by mass balance calculations. Na2O, K2O, Sr, Ba, Zn and H2O were enriched, while Mn3O4, Fe2O3, CaO, MgO, P, B and CO2 were leached from the ore during supergene alteration. Results of this study suggest that the development of Post African I erosional surface may have taken place 45 Ma ago. The bottom of the weathering profile gives a well-defined peak at ca. 5 Ma that may possible coincide with the development of Post African II erosional surface. The major characteristics of the alteration process of the unaltered Mamatwan-type ore to supergene altered braunite lutite can be summarized as follow: • Leaching of Mn carbonates and Mn2+/Mn3+-oxides. • Formation of Mn4+-oxyhydroxides and quartz. • Decrease in relative density of the ore. • Increase in porosity of the ore. • Leaching of Mn3O4, Fe2O3, CaO, MgO, P, B, CO2. • Enrichment of Na2O, K2O, Sr, Ba, Zn, H2O. Chemical weathering processes along the Cenozoic Kalahari unconformity appear to have affected the manganiferous lithologies of the Hotazel Formation from 45 Ma onwards to 5 Ma. The weathering front processes very slowly through the Mn-rich braunite lutite (<10m in 40 Ma; <0.25m/Ma); producing a very uniform and microcrystalline supergene mineral assemblage with distinct characteristics.

University of the Witwatersrand Submitted in fulfilment of the degree of Master of Science (Archaeology) by research. Rock Art Research Institute; School of Geography, Archaeology, and Environmental Studies. Johannesburg, 2017. / Southern Africa’s Orange River has been a frontier-zone for centuries, acting as a socially formative and often volatile expression of its surrounds. Communities of the region have competed, compounded, and admixed for as long as competing influences have obliged it, contributing over hundreds of years to a background milieu of generally-coherent beliefs and practices; ‘frontier ideologies’ that dealt in the expression and mediation of identity, and the configuration of responses to tumultuous social and ecological conditions. The common core of these ideologies allowed frontier societies to respond to one another in familiar terms, even if other channels of meaning were inaccessible. One of the contributors to these ideologies were the |Xam, most well-known for their contributions to the shamanistic approach to interpretation of rock art in the Maloti-Drakensberg mountains of South Africa. While analogy has allowed them to speak on behalf of the artists of this disparate tradition, they are products of the area surrounding the Orange River during the nineteenth century. Accordingly, they demonstrate the fundamental features of a frontier society; they evaluate contact with other communities relative to themselves, and formulate appropriate expressions of identity to enact in response. The application of their ethnography is somewhat burdened by their application to the rock art of the Maloti-Drakensberg, however, which casts their motivations in specific, ritualised terms. This thesis considers a very different body of rock art to the one conventionally interpreted by the shamanistic approach, but located in a historical and regional context intimately linked to the |Xam informants; specifically, the rock art of the Strandberg hills, in the Northern Cape province, South Africa. This body of art is one dominated by horses, distributed as a structure that spans much of the site, and manufactured with visibility in mind. This thesis finds that these images were products of the frontier ideologies that inhabited the region, and the adaptive practices that emerge from them. Accordingly, the art is characterised as a record of inhabitation, an expression of identity, and the mediation of contact with a changing landscape, in keeping with the behaviours that had marked interactions between communities in the region for long before many of the images were placed on the Strandberg. / MT 2017

The rock engraving site of Driekopseiland, west of Kimberley in the Northern Cape is distinctively situated on glaciated basement rock in the bed of the Riet River, and has a wealth of over 3500 engravings, preponderantly geometric images. Most other sites in the region have greater proportions of, or are dominated by, animal imagery. In early interpretations, it was often considered that ethnicity was the principal factor in this variabilty. From the 1960s the focus shifted more to establishing a quantative definition of the site, and an emperical understanding of it within the emerging cultural and environmental history of the region. / Magister Artium - MA (Anthropology/Sociology)

Magister Artium (Development Studies) - MA (DVS) / The Reconstruction Development Programme (RDP) housing program was instituted to provide South Africans with quality housing that meet their basic needs. For people, fortunate enough to receive RDP houses, numerous complaints were raised. With government's focus on quantitative housing delivery, there have been qualitative shortcomings and the perceptions are that the constructed houses are of very low quality and do not meet the needs of the occupants. Consequently, the quality of housing constitutes the physical condition of housing as well the perceptions of occupants. However, since perceptions of housing quality are context specific and differs from one person to the other and across cities/countries, what therefore constitutes as housing quality is highly subjective. Also, despite the increased discussion on the quality of housing and people's perception of it, most empirical research on housing has been undertaken in the larger metro areas while there is not much focus on housing in small towns. The purpose of this the study was to explore the perceptions of RDP beneficiaries on the housing quality in the small community of Nollothville, Northern Cape. Since housing is important as it satisfies many different human needs, a case study approach was adopted and Abraham Maslow's hierarchy of needs was used as a theoretical framework to guide this study. Research conducted in Nollothville reveals that the RDP houses especially the first phase of the RDP houses are of sub-standard quality. Both primary and secondary resources were used to obtain data. The study used a semi-structured interview guide as a data collection tool while the questionnaire was used to solicit the magnitude of RDP beneficiaries' perceptions of the RDP houses and, lastly, observations were conducted to validate these findings. Findings revealed that although the RDP houses were well received by the recipients, many complained about the substandard quality of these houses and that the houses do meet the criteria for quality housing. The following perceptions raised by most of the study participants regarding the quality of the houses included unstable foundation, poor quality roofing; poor quality doors or no doors inside the house; cracking floors; no bath or shower, weak and poor-quality toilets. Also, since many of the houses were in such bad conditions there was a struggle to cope with the financial upkeep of the houses. Based on previous research conducted in other provinces, the study concludes the RDP houses are the of the same sub-standard quality as the houses found in the other provinces.

Magister Scientiae Dentium - MSc(Dent) / When considering a person's self-esteem, behavioural patterns and personal interactions, the one feature having the most impact is their physical appearance. In an ideal world, every person should have a fair opportunity to reach their full potential in life. Orthodontics can improve a person's quality of life by creating confident smiles and a functional occlusion (Sheiham, 1993). Uncorrected malocclusions can adversely affect one's speech, general health and self-esteem. Improving the general physiological implications malocclusions has on person, may make them more employable and more successful in relationships, creating an overall happier, healthier and more successful community. The more people are offered affordable orthodontic treatment, the more acceptable orthodontic treatment may become. Thus, the perceived benefits of Orthodontic treatment in a population group are Improvement of Oral Health and enhancement of psychosocial welfare. Accurate data on the prevalence, distribution and severity of malocclusion is needed by provincial oral health management. They also need accurate data of the orthodontic treatment need of the children in that specific area. This data is vital for the effective planning of the education, training and deployment of dental workers, as well as the resources and distribution thereof in specific, designated areas (Holtshousen, 1997; So & Tang, 1993). This study's focus was to estimate the prevalence of malocclusion amongst adolescents in Upington area in the Northern Cape, and to determine the need for orthodontic treatment in the area using the Index for Orthodontic Treatment Need (IOTN).

Magister Scientiae - MSc (Biodiversity and Conservation Biology) / Heavy metal accumulation in arable land as a result of mining activities, pesticides and fertilisers has become a global concern. Steinkopf and Concordia in the Northern Cape are well-known for subsistence farming, but just as well-known for the nearby copper mining industry. Very little research has been done on heavy metal toxicity in these areas, thus it was of importance to assess the wheat cultivars (Triticum aestivum) historically used in the study areas, to ensure the viability of wheat farming. The nine wheat cultivars screened were Flameks, Knoppies, Rooiwol, Rooigys, Yecoro Royo, Charchia, Witwol, Kariega and Losper. A comparative study was done by determining the concentration levels of Cu, Fe, Zn, Mn, K, Mg, Ca, Na, N and P in the roots and shoots of sensitive and tolerant wheat cultivars. It was established that Witwol and Rooigys were the most tolerant to these adverse conditions. Kariega and Rooiwol were most sensitive. Their tolerance was achieved by excluding copper from the roots and limiting the translocation of copper to the shoots. This trend to exclude copper uptake in Witwol and Rooigys, warrants further investigation on a molecular level to explain these adaptive mechanisms. / South Africa

The main objectives of this study can be divided into four categories: a) The determination of the presence of abscesses in carcasses. b) The determination whether the abscesses are area bound. c) The determination of the causative bacteria which is responsible for abscess formation. d) The determination of the economic impact due to carcass rejections and trimmings. The research area consists of the biggest part of the Northern Cape province, which can further be divided into three main production areas, namely Groblershoop, Gordonia and Hantam. The Groblershoop area includes Groblershoop and the surrounding districts. The Gordonia area includes Upington and the Kalahari. The Hantam area includes Calvinia, Springbok and the other districts bordering the areas. All the carcasses were slaughtered at an export abattoir, namely LAW, which is situated in Groblershoop. The Upington veterinary laboratory bacteriologically cultured the abscess material and the results were processed and noted. The following results were prominent: a) It was determined that abscesses did occur in carcasses. b) It was determined that in the Hantam main production area the prevalence of abscesses is the highest, although the slaughter numbers are the lowest. c) It was determined that the bacterium that was responsible for most of the abscesses was Escherichia coli. d) It was determined that the total occurrence of bacteria did not have a significant economic impact, because there were not many carcass rejections due to abscesses. The economic impact, however, of the value of the total rejections, might become a problem.

M.Sc. / Biofuels have the potential to reduce a country’s dependence on imported oil, to ensure diversity of energy sources, to increase the availability of renewable energy sources and to address global environmental issues. In recognition of the potential benefits of the production and use of biofuels, the Department of Minerals and Energy released the Draft Biofuels Industrial Strategy in December 2006 with the aim to increase the use of biofuels in South Africa to replace 4.5% of conventional transport fuels by 2013. However, there are several barriers that need to be overcome before South Africa can establish a large-scale biofuel industry to achieve the DME’s biofuel target. This includes environmental barriers, such as the availability of land for the cultivation of biofuel feedstocks and potential threats to food security. This study focuses on these environmental barriers and aims to determine the potential for bioethanol production from maize in South Africa to 2013. To this purpose, a bioethanol potential model is developed to simulate the potential for bioethanol production from maize in South Africa between 2008 and 2013. The model incorporates four key elements that all impact on the availability of maize for bioethanol production, namely: maize demand; maize supply; the demand for maize as biomaterial; and the available land area for the cultivation of maize. The study makes further use of the scenario planning method to determine the potential for bioethanol production from maize in South Africa. Four unique bioethanol potential scenarios are designed and simulated within the bioethanol potential model developed for this purpose. Each scenario plays out a different Abstract storyline for the future social, economic and natural environment that will impact on the availability of maize for bioethanol production. The results of the bioethanol potential scenario simulations show that South Africa will be able to produce enough maize to meet the DME’s biofuel target of 1.2 billion liters of bioethanol for all scenarios between 2009 and 2010. From 2011 onwards, the bioethanol potential decreases below the DME’s target value in both the worst case and rapid change scenarios. The study concludes that the production of bioethanol from maize in South Africa will have various social, economic and environmental consequences for the country’s agricultural sector. The depletion of domestic maize supplies will seriously threaten food security and consequently, increase the country’s dependence on maize imports. This will not only affect the country’s maize producing regions, but spread throughout South Africa as the demand for agriculturally productive land for maize production increases. Domestic food security is therefore at risk and South Africa will have to resort to other energy technologies to achieve a sustainable and renewable energy future for road transport.