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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
451

Water quality in the upper Klip River, Region 5, City of Johannesburg

Kruger, Welna 05 February 2009 (has links)
M.Sc. / The main aim of this study is to determine the water quality of water sampling points situated in Region Five of The City of Johannesburg. The water quality is studied over a three-year period from July 2000 until June 2003; this includes a dry, normal and rainy year. Region Five falls within the Upper Klipriver sub-catchment, which forms part of the Klip river catchment. The physical, chemical and microbiological sampling results are obtained from Rand Water. These results are compared with the water quality guidelines as set by the Department of Water Affairs and Forestry namely for domestic use, recreational use and aquatic ecosystems, as well as the guidelines set by Rand Water. These results of the variables that were selected are depicted visually in the form of graphs. A scientific approach is followed with respect to the water quality results. The significance of the data is statistically evaluated by using the Student’s t-test. The seasons are divided into two groups namely the more dry and cool season (autumn/winter) and the more rainy and hot season (spring/summer). This is done to determine if the seasons have a significant effect on the water quality results in comparison to each other. The water quality results are then discussed with respect to the different sampling sites. Sampling point K9, the stream at Durban Roodepoort Deep mine delivered the most problematic results of the different sampling points studied, and indicated that acid mine drainage was taking place during the sampling period. The other sampling points are less problematic. Point and non-point source pollution are elaborated on, and recommendations are made to improve the water quality at the sampling points selected.
452

Die houdingsproblematiek rondom Afrikaansonderrig in hoërskole vir Kleurlinge

Vergie, Malvin Patrick 23 April 2014 (has links)
M.Ed. (Language Teaching) / Please refer to full text to view abstract
453

Die invloed van intelligensie op die studiesukses van eerstejaar onderwysstudente

Van Zyl, Jacobus Gert 24 April 2014 (has links)
M.Ed. (Education and Curriculum Studies) / Please refer to full text to view abstract
454

The rhythms of minutes : Henri Lefebvre’s Rhythmanalysis and an investigation of spatial practices of a selected public site in urban Johannesburg

Janse van Veuren, Lodewyk Mocke 10 June 2014 (has links)
M.Tech. (Fine Art) / In Rhythmanalysis: Space, Time and Everyday Life, Henri Lefebvre (2004 [1992]) presents an incomplete account of an interdisciplinary, poetic science of rhythms, where the body and senses are given prime place as instruments of measure. This text has strong correlations with the Minutes Project, a collaborative study of everyday urban Johannesburg through the mediums of time-lapse film and sound recording. This correlation raises the question of how critical dialogue between Rhythmanalysis and the Minutes Project may contribute to the development of new methods for the study of the everyday. The research unfolds as a series of iterative processes, moving between theoretical engagement and critical praxis, including critiques of selected scientific works of Etienne-Jules Marey (1830-1904) and the media critique of Friedrich Kittler (1999), as well as the production of films, installations, and performances. Through these engagements I evolve a constellation of ideas and methods for the study of the everyday, centred on the relation between the measuring function of indexical graphic traces and the rhythmic measure of bodily, sensory experience. Both quantitative and qualitative methods are employed, resulting in an integration of empirical and poetic modes of investigation. Lefebvre’s proposed figure of the rhythmanalyst emerges as a productive sounding-board for the development of a study of rhythmic aspects of the everyday, and the process of rhythmanalysis is extended in this project to encompass collaboration and participative interpretation. In the course of the research, I develop a novel method of graphing quantities of movement over time in the spaces studied, presenting multiple possibilities for interpretation as a trace of an underlying rhythmic layer of urban life. The research project as a whole demonstrates the practicability of the integration of empirical and poetic modes of investigating the everyday.
455

Nie-formele voedingonderrig vir onderwysstudente

Olivier, Martie 24 April 2014 (has links)
D.Ed. (Education Management) / The link between dietary practices and the prevalance as well as the prevention of various diseases have been proven beyond any doubt; the guidelines of the Prudent Diet were subsequently put forward to reduce many of these nutrition-related risk factors. Due to inadequate numbers, qualified nutrition educators cannot target their efforts to reach all vulnerable groups and everybody is thus not in a position to glean sound nutrition knowledge, enabling them to plan -healthy diets. Teachers could fill this gap, provided they are well versed in nutritional matters. Eating habits are usually formed in chidhood but the establishment of sound practices is a dynamic life-long process. Exposure to accurate and convincing information could benefit eating behaviour, but incorrect nutrition messages may have a confusing and detrimental influence upon people's choice of foods. Magazines and parents are reported as the major sources of nutrition information as well as misinformation for school children and students. School subjects are seldom singled out as being of significant value. These findings suggest the dire need for teachers to be properly trained in nutrition. Since students are notoriously ignorant on nutrition related issues and tend to follow a typical but often poor diet, this study aimed at determining the effect of a nonformal consumer orientated nutrition education programme on the nutrition knowledge and eating habits of student teachers at the Rand Afrikaans University (RAU). All the students in the 1993 Didactics class (representative of the student teachers at this university) were selected as an appropriate target audience. Nutrition education can only be effective and efficient if the particular needs of the target group are addressed by means of a popular and acceptable teaching strategy. A nutrition education programme based on the guidelines of the Prudent Diet and similar in format to magazine articles, seemed to be an appropriate teaching method. Questionnaires were developed to collect and compare pre- and post-test information on nutrition knowledge, levels of interest, eating habits and individual queries or comments. Test questions were based on common misconceptions as responded in the literature, and food frequency questionnaires included 20 items of which prudent lowered or increased intakes are recommended. Actual and perceived nutrition and consumer knowledge scores were analyzed for sex, age, residence, sports activities, personal opinions and sources of information by means of paired t-tests. These data contributed towards interpreting the test results, assessing knowledge needs, gauging interest and formulating the contents and format of the learning material.
456

The Johannesburg Stock Exchange: What it is, How it Works: an informaiton booklet for workers

Trade Union Research Project (TURP) 02 1900 (has links)
This booklet is about the Johannesburg Stock Exchange (JSE). Workers are directly or indirectly affected by what happens at the JSE. There are many workers at companies which are listed on the Johannesburg Stock Exchange. The bosses of some of these companies are encouraging workers to own shares in these companies. Some workers already own shares in the companies where they work. Workers’ pension and provident funds are being invested on the stock exchange. These issues have raised questions among workers about what shares are, how they make money and where they are traded. This pamphlet addresses some of these questions. It focuses mainly on what the stock exchange is, how it works and what role it plays in the economy. Because workers are also thinking about how the present South African economy can be restructured, the pamphlet also raises a few questions for discussion on the role of the JSE in a future economy.
457

Empirical testing of implied cost of equity in the capital asset pricing model using JSE listed companies

Kempff, Paul January 2013 (has links)
The capital asset pricing model (CAPM) has for half a century been considered a pillar of modern finance in describing the relationship that is deemed to exist between the risk of owning an asset and the expected future returns from that asset. The model has however been subject to criticisms and attacks in the literature and some doubt remains about the validity and successful application of the model. This research builds on previous empirical testing of the CAPM with a specific focus on the cost of equity of companies listed on the Johannesburg Stock Exchange. The approach of this research was to use market values, as indicated by the share price of a listed company and discounted free cash-flow valuations to determine both an estimated and implied cost of equity. The aim was to test the validity of the CAPM empirically and potentially find an accurate, implied cost of equity for the South African equity market, by comparing the different rates and looking for statistical correlation between them. While no correlation could be found, this study did provide evidence that the cost of equity and the market risk premium in South Africa is potentially higher than previously thought. / Dissertation (MBA)--University of Pretoria, 2013. / ccgibs2014 / Gordon Institute of Business Science (GIBS) / MBA / Unrestricted
458

An EIA of Rietvlei farm's development as a conservation area within JMOSS management guidelines

Van Niekerk, Liselle 02 February 2009 (has links)
M.Sc.
459

Factors in the success of disadvantaged University of Johannesburg students

Ombeva, Rachel Aleyo 12 December 2011 (has links)
M.A. / This was a study of how a group of second and third year humanities students at the University of Johannesburg managed to access University and progress past the critical and often turbulent first year. Data collected from the study participants through in-depth interviews and life histories reveal that encouraging parents and teachers, access to information on financial aid, and self-determination, were significant in contributing positively toward academic success. The study also reveals that role models play a very important part in student success. Especially significant is the role played by mothers (most with low educational qualifications) in encouraging their children to pursue higher education. This is noteworthy because it shows that students‘ pursuit of higher education is not wholly dependent on parents‘ education but on the parents‘ educational aspirations for their children.
460

'n Evaluering van die drupfiltrerings- en die geaktiveerde slykproses van die Johannesburg-Noord rioolwerke deur middel van die biologiese groeipotensiaaltegniek

Brown, Leslie Robert 01 April 2014 (has links)
M.Sc. (Botany) / A comparison was made between the effectiveness of the biological filtering and activated sludge processes at the Johannesburg North Sewerage Works by making use of, inter alia, the physical-chemical and biological research methods. In addition to the standard physical and chemical analytical techniques, the biological growth potential technique, the lC method of determining primary productivity and biomass determination by way of the chlorophyll a method, were also used. The most important findings were: 1. that the activated sludge process purifies the water more effectively than the biological filtering process; 2. that no seasonal fluctuations affecting the effectiveness of the purifying systems were found, and 3. that the biological growth potential of the effluent in the Jukskei River was such that it could still cause algal growth. The primary recommendation is that tertiary purifying techniques will have to be employed in order to reduce The high phosphorous levels still prevailing in the effluent to comply with the requirements of the Water Act of 1984.

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