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Contrasting biodiversity values in four states of Eastern Province thornveld

  • Authors: Duncan, Imogen May
  • Date: 2010
  • Subjects: Biodiversity -- South Africa -- Eastern Cape , Agrobiodiversity -- South Africa -- Eastern Cape , Agricultural ecology -- South Africa -- Eastern Cape , Veld -- South Africa -- Eastern Cape , Landscape assessment -- South Africa -- Eastern Cape
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4190 , http://hdl.handle.net/10962/d1003759 , Biodiversity -- South Africa -- Eastern Cape , Agrobiodiversity -- South Africa -- Eastern Cape , Agricultural ecology -- South Africa -- Eastern Cape , Veld -- South Africa -- Eastern Cape , Landscape assessment -- South Africa -- Eastern Cape
  • Description: Land use and land transformation are major threats to biodiversity. Only a small percentage of land and thus biodiversity is protected within reserves. The majority of biodiversity lies in the hands of private and communal farmers and in order to protect biodiversity they must perceive it as having some value and have the means and incentive to conserve it. This study examined two things: (i) the relationship between biodiversity and measures of ecosystem health, range condition, primary production and presence of useful plants that would be expected to be of relevant use to land users, (ii) the perceptions of farmers of vegetation states that differ in the abovementioned attributes. Within the Eastern Province Thornveld of the Smaldeel area, four different vegetation states were selected for the study, namely park-like grassland with scattered Acacia karroo (“savanna”), heavily infested Acacia karroo grassland (“acacia”), thicket-grassland mosaic (“thicket”) and heavily utilised thicketgrassland in communal lands (“communal”). The four states are a consequence of different patterns of browsing and fire, in both pre-colonial and recent times. Different ecological attributes were assessed and compared for each state and the relationships between the different attributes determined. Ecosystem health, in terms of stability or resistance to erosion, infiltration/water-holding capacity, and nutrient cycling were compared using Landscape Function Analysis. The agricultural value of the different landscapes was measured using range condition assessment techniques. Plant species richness and other measures of diversity, along with their conservation and usefulness values, were compared between states. Plant productivity and biomass were compared using satellite data. The thicket state was found to be the most functional due to the added habitat complexity provided by the vegetation. It was the most biodiverse, the most useful and contained many, but not all of the important conservation species. The communal state had high biodiversity and was be fairly resilient to heavy usage, not showing the expected signs of land degradation. The savanna state, although thought of as the optimum state for cattle production, was not significantly different from the other states in terms of agricultural potential, but had the lowest values for plant diversity, browse potential, abundance of useful plant species and biomass. The acacia state had the highest and least stable values in terms of biomass production, however it was found to contain species of conservation importance. The preference that four groups of land users, namely men and women from commercial and communal farming areas, expressed for the four vegetation states was assessed using semi-structured interviews in conjunction with A3 colour photographs. The men and women from the communal areas and the men from the commercial areas valued the thicket state highly for its farming potential. The male commercial farmers also valued the savanna state highly as they perceived it as being most productive for cattle farming. Both the thicket state and the savanna state were found aesthetically pleasing by all the user groups, in line with theories of preference for modified savannas and for familiar environments. There appears to be potential for preserving biodiversity on farmland. The farmers in this study, with their very utilitarian perspective, were found to intuitively gauge the health of the landscape and recognise biodiversity as indicating good farming land. The commercial farmers were strongly influenced by economic motives and thus attracted to the savanna state, but also recognised the opportunity for a wider variety of farming activities in the thicket state. The communal farmers have a high dependence on the land for their livelihoods and preferred the thicket state for its overall usefulness. The views of the farmers indicate that the opportunity for conservation is good, however much of the thicket state lies in the communal land, where the openaccess land use system makes managing for biodiversity difficult.
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  • Date Issued: 2010

Control and authenticity: reflections on personal autonomy

  • Authors: Paphitis, Sharli Anne
  • Date: 2010
  • Subjects: Frankfurt, Harry G., 1929- -- Criticism and interpretation Nietzsche, Friedrich Wilhelm, 1844-1900 -- Criticism and interpretation Watson, Gary, 1943- -- Criticism and interpretation Self-control Authenticity (Philosophy) Autonomy (Philosophy) Self (Philosophy)
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:2717 , http://hdl.handle.net/10962/d1002847
  • Description: Currently the most influential accounts of personal autonomy, at least in the Englishspeaking world, focus on providing conditions under which agents can be said to exercise self-control. Two distinct accounts of personal autonomy have emerged in this tradition: firstly, hierarchical models grounded in the work of Harry Frankfurt; and secondly, systems division models most famously articulated by Gary Watson. In this thesis I show the inadequacies of both of these models by exploring the problematic views of the self and self-control underlying each model. I will suggest that the problems faced by these models stem from the fact that they endorse a problematic fragmentation of the self. I suggest that a Nietzschean account of personal autonomy is able to avoid these problems. The Nietzschean account can largely, I show, be drawn from Nietzsche’s understanding of both the ‘man of ressentiment’ and his opposite, the sovereign individual. On this picture wholeness of self – rather than fragmentation of the self – is required in order for us to be most fully autonomous. Furthermore, this wholeness of self requires the kind of integrity which is opposed to the problematic fragmentation endorsed by Frankfurt and Watson.
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  • Date Issued: 2010

Copreneurships in South African small and medium-sized family business

  • Authors: Eybers, Carey
  • Date: 2010
  • Subjects: Couple-owned business enterprises , Family-owned business enterprises -- Succession -- South Africa , Entrepreneurship -- South Africa , Small business -- South Africa
  • Language: English
  • Type: Thesis , Masters , MCom
  • Identifier: vital:9285 , http://hdl.handle.net/10948/1207 , Couple-owned business enterprises , Family-owned business enterprises -- Succession -- South Africa , Entrepreneurship -- South Africa , Small business -- South Africa
  • Description: Taking cognisance of the increasingly important role that copreneurial businesses play in national economies, the unique challenges that they face, and the lack of research attention given to such spousal teams, the purpose of this study was to contribute to the more effective functioning of copreneurships in South Africa by identifying the factors that impact on their success. Consequently, the primary objective of this study was to investigate the factors that influence the Perceived success of copreneurships in South Africa, as well as the conditions required for the effective and harmonious functioning of such spousal partnerships. This study seeks to incorporate previous findings and studies on team effectiveness and spousal relationships into a comprehensive conceptual model. After conducting a comprehensive literature study, as well as examining the different teamwork models proposed and the study by Farrington (2009), it became clear that successful teams have validated their proficiency with regard to two types of factors, namely, relational-based and organisational-based factors. Within these two categories of factors, 14 independent variables were identified and hypothesised to influence the measures of effectiveness of copreneurships, namely the dependent variable Perceived success; and the intervening variable Financial performance. All of the factors in this study were clearly defined and operationalised. Reliable and valid items sourced from Farrington’s (2009) measuring instrument, as well as several measuring instruments used in other studies, were used in the operationalisation of these factors. In addition, several items were self-generated from secondary sources. Respondents were identified using the convenience snowball sampling technique, and a structured questionnaire was made available to them. The data gathered from the 380 usable questionnaires was subjected to various statistical analyses. The validity and reliability of the measuring instrument was confirmed by means of an exploratory factor analysis, and Cronbach-alpha coefficients were calculated for this purpose. The original intervening variable Financial performance could not be confirmed as originally intended in the conceptual model. Instead, Financial performance split into v two separate variables which were named Financial performance and Growth performance. The original dependent variable Perceived success was confirmed by the factor analyses. The relational- and organisational-based factors could not be confirmed as originally intended in the conceptual model. Instead, seven new relational- and seven new organisational-based factors emerged, and where necessary these factors were renamed. The primary statistical procedure used to test the significance of the relationships hypothesised between the independent and dependent variables in this study, was Structural Equation Modelling (SEM). Owing to the sample-size restrictions, the conceptual model could not be subjected to SEM as a whole. Instead, seven submodels were identified and subjected to further analysis. The following independent variables were identified as influencing the dependent and intervening variables in this study: • Spousal relationship • Commitment to spouse • Equal status • Commitment to the business • Emotional attachment • Non-family involvement • Personal needs alignment • Leadership • Competencies • Internal context In order to investigate the influence of the various demographic variables on the intervening and dependent variables, an Analysis of Variance (ANOVA), Multiple Linear Regression analysis and t-tests were performed. How leadership occurs in a copreneurial business, the tenure of the business, the location of the business, the status of the copreneurship, the level of spousal involvement in the business and the vi number of employees were found to have an influence on the intervening and dependent variables of this study. By empirically investigating copreneurships, this study has added to the limited amount of family business literature on these complex partnerships. By way of the conceptual models developed in this study a significant contribution has been made towards understanding the factors influencing the success of copreneurships. As a result, this study presents recommendations and suggestions to assist couples in managing their copreneurships in such a way as to nurture their marriage relationships and at the same time enhance the performance of their businesses.
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  • Date Issued: 2010

Cost-effective, post-mining environmental restoration of an open-cast phosphate mine at Langebaanweg, South Africa

  • Authors: Van Eeden, Joseph Deon
  • Date: 2010
  • Subjects: Abandoned mined lands reclamation -- South Africa -- Langebaan , Phosphate mines and mining -- Environmental aspects -- South Africa -- Langebaan , Phytoremediation -- South Africa -- Langebaan
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4232 , http://hdl.handle.net/10962/d1003801 , Abandoned mined lands reclamation -- South Africa -- Langebaan , Phosphate mines and mining -- Environmental aspects -- South Africa -- Langebaan , Phytoremediation -- South Africa -- Langebaan
  • Description: Approaching the ecological rehabilitation of an open-cast phosphate mine in the West Coast of South Africa during the post-operational phase presented some challenges. The area was extensively modified during the mining operations. Soils from different layers were mixed with topsoil being covered by subsoil, overburden dumps and tailing dams being constructed resulting in extensive cross-zoned soils. Large areas of subsoil areas were exposed on the mine floor with localized and small scale salinity being evident. The modified topography as well as the complex new surface material posed a challenge in terms of identifying suitable local species that could be used to rehabilitate the post-mining environment. The mine area was heavily infested with woody alien invasive plants, such as Acacia cyclops, established in an attempt to reduce the dust and little natural vegetation cover was present. In the arid west coast environment, the four-month-long winter growing season is followed by hot and windy dry summers (Chapter 2) presenting a challenge reestablishing local vegetation in modified soils. Moreover, little was known about the local vegetation in terms of their propagation and use in stabilization techniques as an alternative to exotic vegetation such as the A. cyclops, which had been more often used in revegetation projects. A study was conducted to determine the most efficient and cost-effective methods of vegetative rehabilitation of the Chemfos site (Chapter 1). A review of the literature available at the time as well as approaches that were successfully implemented in other Western Cape rehabilitation projects such as the Du Toitskloof Pass and the Sishen–Saldanha railway line (Chapter 3), were considered. Previous studies on the west coast dunes at Blaauwberg had shown using Marram grass as a dune stabilizer was most successful. Marram grass was tested in trials alongside local grasses, such as Chaetobromus dregeanus and Ehrharta villosa, that showed potential but had not been formally evaluated. The environmental context of Chemfos (Chapter 2) as well as the Conceptual Rehabilitation Plan that considered the modified environment, soils and closure objectives of the mine, were reviewed to determine the most pressing rehabilitationrelated questions that required answers. This led to the final experimental design that was implemented mid-winter in 1996 (Chapter 5). The trials were implemented in the areas perceived to be the most difficult to rehabilitate, namely the mobile sands in the tailings dam and the exposed subsoil or mine floor areas. The use of brushwood together with specific plants and seeds appropriate for the use in either sandy soil or subsoil were evaluated in a variety of combinations and application densities to determine the most effective treatment combination at the minimum effective density. The best initial cover of the tailings dam were recorded in the Ammophila arenaria trials but the use of the local grass species Ehrharta villosa, performed better from year two onwards and was much cheaper to establish. On the subsoil, the trials where a cover of topsoil was used performed better than the combination trials. This indicated that topsoil placement on post-operational phase shaped subsoils during the mining operation to be the most desirable treatment. Initial results of the trials were used as a basis for developing the rehabilitation techniques that were rolled out across the Chemfos landscape. The approaches were refined as indications of trial responses became evident. Lessons learned were incorporated in the adaptive management approach that was followed and the rehabilitation techniques (Chapter 6) were continually re-evaluated and adjusted. This resulted in a significant step towards achieving the overall research objective of finding cost-effective approaches to rehabilitation. Components such as refinement of the seed collection and processing techniques (Chapter 7) where the post-harvest processing cost was significantly reduced by introducing specially designed drying racks. Processing techniques were adjusted to suit the different species, and a variety of mechanical processing options were explored. The scale of the Chemfos project led to the development of new techniques of manufacturing a smoke-derived germination stimulant (Chapter 8) since commercial availability of these products was very limited. The development of FireGrow assisted in the overall aim of reducing cost by increasing germination of seed in the rehabilitation sites using a very cost-effective smoke concentrate. Socio-economical aspects were considered during the implementation as well as the post-closure phases of the rehabilitation and BHPBilliton invested through the agency of the SAMANCOR Trust. This led to the development of livelihoods of the staff that remained in the area and that lived in the mine village. The demography of the population has changed over time in the Green Village as well as the skills that the inhabitants have developed. Thus, the new economic opportunities that were pursued have brought a new lease on life beyond the lifespan of the mine (Chapter 9) once the closure certificate had been issued.
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  • Date Issued: 2010

Creating a new underclass : labour flexibility and the temporary employment services industry

  • Authors: Van Der Merwe, Christine
  • Date: 2010
  • Subjects: Temporary employment , Unfair labor practices -- South Africa , Temporary help services , Temporary help services -- South Africa
  • Language: English
  • Type: Thesis , Masters , MSocSc
  • Identifier: vital:3291 , http://hdl.handle.net/10962/d1003079 , Temporary employment , Unfair labor practices -- South Africa , Temporary help services , Temporary help services -- South Africa
  • Description: The core of the research focuses on the Temporary Employment Services (TES) Industry and its ability to provide labour flexibility for a number of client firms. The underlying notion that work is changing and becoming more flexible creates an exploratory realm for the concept of non-standard employment. The thesis draws on the conceptual model of the „flexible firm‟ and argues that the rise in non-standard forms of employment, particularly temporary employment within the TES industry, is primarily a result of the demand for labour flexibility. The TES industry that offers „labour on demand‟ is found to be an extremely secretive industry that is diverse in both its structure and services. The thesis reveals that the clients within the triangular employment relationship (TER) are reaping the most benefits especially with regard to escaping their obligations as the employer. The thesis explores human resource practices, unfair labour practices and the extensive loopholes exploited by the TES industry because of poor regulation. Consequently, the industry creates an „underclass‟ that is unprotected, insecure and easily exploitable. Qualitative research techniques were used in the form of semi-structured interviews. The thesis provides insights into the demand and supply of temporary workers in Port Elizabeth and addresses the problems associated with a TER and the TES industry as a whole.
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  • Date Issued: 2010

Criminalisation of HIV/AIDS in South Africa: a critical look at the Criminal Law (Sexual offences and related matters) Amendment Act 32 of 2007

  • Authors: Ndawula, Barnabas
  • Date: 2010
  • Subjects: AIDS (Disease) -- Law and legislation -- South Africa , Sex crimes -- South Africa
  • Language: English
  • Type: Thesis , Masters , LLM
  • Identifier: vital:10167 , http://hdl.handle.net/10948/1280 , AIDS (Disease) -- Law and legislation -- South Africa , Sex crimes -- South Africa
  • Description: Human Immuno Virus (HIV) and Acquired Immuno Deficiency Syndrome (AIDS) have formed part of the South African landscape since the first report in 19831and today South Africa is reported to be the country with the highest number of people living with HIV/AIDS in the World2. This state of affairs, in combination with South Africa’s high sexual crime rate resulted in a general public out-cry with calls for the government and the legislature to enact laws to stem the spread of HIV/AIDS3. Government and the legislature finally responded by way of promulgating the criminal law (sexual Offences and related matters) Amendment Act4 (hereinafter the sexual Offences Act). The Sexual Offences Act inter alia provides for the compulsory testing of alleged offenders of sexual crimes5 This treatise will show that chapter five of the sexual Offences Act, indirectly criminalises HIV/AIDS, and that this is not desirable. It will be submitted that the criminalisation of HIV is against the stated UNAIDS policy 6 It is finally submitted in this treatise that South Africa should repeal all provisions in its law that directly or indirectly criminalises HIV/AIDS transmission and instead follow both and is a deterrent to public health methods of curbing the epidemic, while at the same time exacerbates the spread of the epidemic by forcing people who are HIV positive not to openly come out. It will be argued in the use of criminal law against the transmission of HIV creates stigma and is also an attack on individual human rights. The study will also show that the supposed marginalised persons, such as women and children are not protected by the use of criminal law in the prevention of HIV transmission, contrary to the arguments of the proponents of those who support the use of criminal law. The study will show that far from protecting these marginalised groups of people, criminalisation of HIV transmission, does in fact hurt them the UNAIDS policy and the South African development corporation (SADC) Model Law on HIV and AIDS.
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  • Date Issued: 2010

Critical success factors for user acceptance of telemedicine in South Africa

  • Authors: Cilliers, Liezel
  • Date: 2010
  • Subjects: Telecommunication in medicine , Medical telematics
  • Language: English
  • Type: Thesis , Masters , MCom (Information Systems)
  • Identifier: vital:11126 , http://hdl.handle.net/10353/384 , Telecommunication in medicine , Medical telematics
  • Description: The World Health Organization has recommended Telemedicine to improve health care in developing countries. The objective of this study was to produce Critical Success Factors that will investigate and identify factors that influence the acceptance and continued use of Telemedicine in the Eastern Cape Department of Health, and to suggest ways to sustain this technology from initial adoption (the pilot programme) to full adoption. Sub questions investigated which other facilitating factors, such as management support or previous Information Technology exposure must be present in order for the technology to be adopted successfully. The study made use of a questionnaire to investigate the user acceptance and behaviour of health care workers. A return rate of 76% was achieved. The data was analysed making use of Statistical Package for the Social Sciences (SPSS), specifically the Chi Square test. From these results Critical Success Factors where then formulated to address the problems identified. The Critical Success Factors that were identified include: Implement and disseminate best practice within a legislative framework; Find a champion; Change management strategies; Training; Sustainable finance; Technical issues and Project management principles If these CSFs are addressed before and during the implementation of Telemedicine it will increase the acceptance and use of the technology among health care workers. Critical Success Factors for User Acceptance of Telemedicine in South Africa.
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  • Date Issued: 2010

Cultural villages inherited tradition and "African culture": a case study of Mgwali Cultural Village in the Eastern Cape

  • Authors: Bovana, Solomzi Victor
  • Date: 2010
  • Subjects: Tourism -- South Africa -- Eastern Cape , Heritage tourism -- South Africa -- Eastern Cape , Culture and tourism -- South Africa -- Eastern Cape
  • Language: English
  • Type: Thesis , Masters , MA (History)
  • Identifier: vital:11537 , http://hdl.handle.net/10353/552 , Tourism -- South Africa -- Eastern Cape , Heritage tourism -- South Africa -- Eastern Cape , Culture and tourism -- South Africa -- Eastern Cape
  • Description: A growing number of studies concerning cultural villages have in most instances tended to focus on the cultural village as almost legitimately self-explanatory and have not been particularly concerned with either how a particular history is produced in and through these villages, or with the ways that particular discourses and practices associated with heritage, tourism, community and development intersect in the production of these meanings. As such Mgwali Cultural Village seemed to promise something different in the form of cultural villages. The thesis argues that Mgwali Cultural Village is unique in the history of cultural villages in that it moves away from presenting a cultural village in Africa as tribal and primitive. It does this by opening up spaces for other aspects such as Christianity and resistance politics, story of Tiyo Soga rather than focusing and confining itself only to aspects cultural portraying Africans and traditional. It is imperative that cultural villages ought to be understood within a broader framework and context where its definition and presentation is not trapped into an anthropological paradigm thinking of exploring and discovering something new by tourists which they are not familiar with. However, the thesis also argues that much as Mgwali Cultural Village promised something new from the known through depiction of other aspects, those histories seem to be absent or marginal at the Cultural Village. The only aspects that are fore grounded are traditions and culture thus freezing Mgwali as a village and its people in time as if they have not evolved and its cultures are static and not dynamic. The thesis therefore explores all those contradictions, silences, or absence thereof of other stories and histories.
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  • Date Issued: 2010

Cumulative effects of living conditions and working conditions on the health, well-being, and work ability of nurses in Grahamstown East and West

  • Authors: Hodgskiss, Jodi Lyndall
  • Date: 2010
  • Subjects: Nurses -- South Africa -- Grahamstown , Nurses -- Employment -- South Africa -- Grahamstown , Nurses -- Job stress -- South Africa -- Grahamstown , Nurses -- Job satisfaction -- South Africa -- Grahamstown , Nurses -- Economic conditions -- South Africa -- Grahamstown , Nurses -- Social conditions -- South Africa -- Grahamstown , Quality of life -- South Africa -- Grahamstown , Social indicators -- South Africa -- Grahamstown
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5108 , http://hdl.handle.net/10962/d1005186 , Nurses -- South Africa -- Grahamstown , Nurses -- Employment -- South Africa -- Grahamstown , Nurses -- Job stress -- South Africa -- Grahamstown , Nurses -- Job satisfaction -- South Africa -- Grahamstown , Nurses -- Economic conditions -- South Africa -- Grahamstown , Nurses -- Social conditions -- South Africa -- Grahamstown , Quality of life -- South Africa -- Grahamstown , Social indicators -- South Africa -- Grahamstown
  • Description: Despite the many changes that have occurred in South Africa since the end of apartheid, there are still residual effects of it, as is evidenced in the disparity of living conditions between different racial groups. It is also evident that there are differences in the work tasks and working conditions of nurses working in different work environments. This project looks at how living conditions as well as working conditions interactively affect the health, subjective well-being, and work ability of nurses. Questionnaires were completed by, and interviews were conducted with nurses from Settlers Hospital and seven municipal clinics within Grahamstown (n=152). The participation rate was approximately 71%. The questionnaires included self-report, forced-choice questions regarding basic demographics of the nurses, work conditions, living conditions, subjective satisfaction levels, as well as a simplified version of the Nordic Questionnaire of Musculoskeletal Strain (Kuorinka et al., 1987), and the Work Ability Index (WAI) (Tuomi et al., 2006). The questionnaires were translated into Afrikaans and IsiXhosa. One-on-one interviews were conducted with the participants, in order to obtain a 24-hour dietary recall, an indication of physical activity levels, as well as measurements of stature, mass, waist girth and hip girth. Factor analysis was performed to identify common variance from amongst the variables, while canonical correlations examined the interaction between the sets of factors. It was found that variables relating to demographic factors, living conditions, and working conditions were closely linked to each other. Factors from each of these groups were associated with life, health, and job satisfaction, anthropometric measures, musculoskeletal strain, and WAI scores. Satisfaction levels appeared to be largely determined by socioeconomic status, while anthropometrics, WAI scores, and levels of musculoskeletal strain were associated with levels of smoking and drinking, race, age, stature, position and tenure.
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  • Date Issued: 2010

Customer profiling using a service-orientated architecture

  • Authors: Ntawanga, Felix
  • Date: 2010
  • Subjects: Consumer profiling -- South Africa , Consumer behavior -- South Africa , Service-oriented architecture (Computer science) , Electronic commerce -- South Africa -- Computer programs
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:10464 , http://hdl.handle.net/10948/1146 , Consumer profiling -- South Africa , Consumer behavior -- South Africa , Service-oriented architecture (Computer science) , Electronic commerce -- South Africa -- Computer programs
  • Description: Customer profiling has recently gained much recognition in the e-commerce domain because of the benefits it is capable of bringing to online business. Customer profiling has been implemented in various systems development approaches such as in a client-server environment. Recently there has been an increase in the number of organisations adopting and implementing e-commerce systems using service-oriented architecture (SOA) principles. This research set out to determine how a customer profile can be implemented using open source SOA implementation tools, and how SOA-based customer profiles can be utilised to provide appropriate personalisation in an SOA environment. The research further endeavoured to complete a comparative study on customer profile implementation in two different architectures, namely SOA and client-server. An extensive literature review was conducted on SOA, customer profiling and e-commerce systems development. SOA enabling technologies, such as, web services, enterprise service bus (ESB) and open source Sun Java SOA implementation tools, for example, Open ESB, GlassFish application server and Netbeans IDE were analysed. A Java web services-based customer profiling system was prototyped following SOA design principles. An end-user evaluation survey was conducted using eye tracking with a sample of 30 participants. The evaluation was done on two e-commerce systems with the same interface but running on two different customer profile back-ends, SOA and client-server. The results show that participants did not experience significant difference between the two systems, however, eye tracking results showed a significant difference between the two systems. The research concluded that customer profiling using SOA offers more benefits than implementations using other architectures such as client-server. SOA component-based development proved to be easier to manage, develop, integrate and improves interoperability between different technologies. The research brought together necessary techniques and technologies that organisations can use to implement SOA. Using SOA, organisations can integrate and utilise different technologies seamlessly to achieve business goals.
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  • Date Issued: 2010

Day-of-the-week effect : evidence from nine sectors of the South African stock market

  • Authors: Mbululu, Douglas
  • Date: 2010
  • Subjects: Stock exchanges -- South Africa , Johannesburg Stock Exchange , Stocks -- Prices -- South Africa
  • Language: English
  • Type: Thesis , Masters , MCom
  • Identifier: vital:1024 , http://hdl.handle.net/10962/d1002759 , Stock exchanges -- South Africa , Johannesburg Stock Exchange , Stocks -- Prices -- South Africa
  • Description: The day-of-the-week effect in share prices is one of the most extensively researched anomalies, especially in developed markets. However, emerging African stock markets have received little attention in this regard. This study breaks new ground in using non-parametric tests directly on skewness and kurtosis to examine whether the day-of-he-week effect exists in nine listed stock market sector indices of the JSE Securities Exchange of South Africa (JSE). Different day-of-the-week effects were found to be present in the statistical moments of returns of these nine JSE sectors
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  • Date Issued: 2010

Deliberating the Dialogues: a critical examination of the nature and purpose of a Daily Dispatch public journalism project

  • Authors: Amner, Roderick John
  • Date: 2010
  • Subjects: Daily Dispatch (East London, South Africa) Journalism -- South Africa -- East London Citizen journalism -- South Africa -- East London
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:3417 , http://hdl.handle.net/10962/d1002870
  • Description: This thesis critically examines the nature and purpose of a series of four town-hall-like meetings, the Community Dialogues, held in the townships and suburbs of East London, South Africa, in 2009. They were undertaken by a mainstream, commercial newspaper, the Daily Dispatch, under the banner of the worldwide public journalism movement. Following Christians et al (2009), the thesis sets out a normative framework of media performance in a democracy, including a detailed and critical normative theory of the ‘facilitative role’ proposed and developed by Haas (2007), one of the public journalism movement’s key advocate-theorists. It also draws on a variety of theoretical frameworks and perspectives in the fields of Political Studies and Media Studies to provide an analytical overview of the complex matrix of political and media contexts – at the macro (global), meso (national) and micro (local) levels – that have helped give impetus to the Community Dialogues and also shaped their ongoing operation as a public journalism strategy in the South African context. Following a critical realist case study design, the thesis goes on to provide a narrative account of the Dialogues based on in-depth interviews exploring the motivations, self-understandings and perceptions of those journalists who originated, directed and participated in this project, as well as observation of a Community Dialogue, and an examination of some of the journalistic texts related to the Dialogues. This primary data is then critically evaluated against normative theories of press performance, especially Haas’s ‘public philosophy’ of public journalism. The thesis found that apart from their undoubted success in generating a more comprehensive and representative news agenda for the newspaper, the Dialogues often fell short of Habermas’s (1989) proceduralist-discursive notion of the ‘deliberating public’, which sees citizens share a commitment to engage in common deliberation and public problem solving. This can be attributed to a number of problems, including some important theoretical/conceptual weaknesses in the Community Dialogues’ project design, the relative immaturity of the project, the domination of civil society by political society in the South African political context, and a number of organisational constraints at the Daily Dispatch. On the other hand, the newspaper’s editorial leadership has shown clear commitment to the idea of expanding the project in the future, establishing a more a more structured programme of community engagement, and nurturing a more sustainable public sphere, including the building of a more dialectical relationship between the Dialogues and civil society.
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  • Date Issued: 2010

Democratic leadership and management practices in a rural Namibian secondary school

  • Authors: Mabuku, Robert Nalisa
  • Date: 2010
  • Subjects: Educational leadership -- Namibia -- Case studies School management and organization -- Namibia -- Case studies Education, Secondary -- Namibia -- Case studies Educational change -- Namibia -- Case studies
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:1489 , http://hdl.handle.net/10962/d1003370
  • Description: The primary purpose of this research was to investigate the understanding and implementation of democratic leadership and management in schools by school managers and other members of the school community in leadership and management roles as advocated by the policy of Education for all. The study also aimed at identifying any gaps in the understanding and practice of the participants in order to enhance democratic leadership and management in schools. Qualitative research using the interpretive approach was the methodology employed in order to fulfill the intention of the study, namely to investigate the participants` experiences and understanding of democratic education leadership and management. The case study method was appropriate to understand the meanings the participants attached to their practice in their natural setting. Data were collected by using semi-structured interviews, document analysis, and observation. The sample for the study consisted of ten participants: the principal, the head of department, two School Board members, two senior teachers, two Learner Representative Council members and two class captains. The findings suggest that the participants understood and practised democratic ELM in terms of broader participation, open communication, delegation for empowerment, learning organisation, shared decision-making, shared leadership and teamwork. However, the data suggest areas of concern in the participants` understanding and implementation of the policy which could be strengthened to entrench the policy. The study recommends that education policy makers, education managers, school managers, teachers, parents and learners all work towards improving democratic ELM in schools. In order to achieve this objective, policy makers are urged to avoid ambiguity to enable all implementers to fully understand policies. Education managers could ensure school-wide training on the policy while school managers and other stakeholders should engage in self-reflection and introspection and be more proactive towards improving their own understanding and practice.
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  • Date Issued: 2010

Demographical diversity influence on online shopping orientation and propensity to buy online

  • Authors: Tapson, Megan Jacqueline
  • Date: 2010
  • Subjects: Teleshopping -- South Africa , Electronic commerce -- South Africa , Consumer behavior -- South Africa -- Cross-cultural studies , Ethnicity -- South Africa , Ethnic attitudes -- South Africa , Consumer behavior -- South Africa
  • Language: English
  • Type: Thesis , Masters , MSocSc
  • Identifier: vital:1168 , http://hdl.handle.net/10962/d1002784 , Teleshopping -- South Africa , Electronic commerce -- South Africa , Consumer behavior -- South Africa -- Cross-cultural studies , Ethnicity -- South Africa , Ethnic attitudes -- South Africa , Consumer behavior -- South Africa
  • Description: Online shopping is a growing phenomenon all over the world, and it has thus had an influence on the shopping process for many consumers (Brengman et al., 2005:79; Brown et al., 2003:1667; Kau et al., 2003:139). Consumers are now choosing to shop online due to changes in their lifestyles and demographic diversity (Kau et al., 2003:139). The purpose of this research was to examine the extent to which demographic diversity influenced online shopping orientation and propensity to buy online. The researcher first conducted an in-depth theoretical study of previous research into demographic diversity, online shopping orientation and propensity to buy online. Next, the researcher conducted an empirical survey questionnaire, in order to assess the opinions of students at the three selected Eastern Cape universities. Phinney's (1992:156) multi-group ethnic identity measure was administered in order to identify how respondents feel about their ethnicity and/or how they react to their own ethnic group. Kau et al.,'s (2003) online shopping orientation measure was used to help identify six relevant online shopping factors. The six online shopping factors where then used to describe six online shopping orientation types. The main findings of this research conducted at three Universities in the Eastern Cape can be summarised as follows: Ethnic Identity Profile: - Within this research it was found that respondents at all three universities in general had a strong ethnic identity to their specified ethnic group, according to the two ethnic identity factors namely; commitment and exploration. Online Shopping Orientation Profile: - Within this research it was found that the respondents at all three universities in general could be categorised in one of six online shopping orientation types according to six online shopping factors. The extent to which demographic diversity influences types of online shopping orientation: - From the research hypotheses it was concluded that a relationship exists between demographic diversity and types of online shopping orientations, whereby the gender, race and ethnicity of respondent is likely to influence the way consumers shop online, namely the consumers‟ online shopping orientation. The extent to which demographic diversity influences propensity to buy online: - From the research hypotheses it was concluded that a relationship exists between demographic diversity and propensity to buy online, whereby the gender of respondents is likely to influence whether consumers buy online in the future. - From the research hypotheses it was concluded that no relationship exists between demographic diversity and propensity to buy online, whereby the race and ethnicity of respondents is not likely to influence whether consumers buy online in the future. The extent to which types of online shopping orientation influence propensity to buy online: - The findings suggest that different online shopping orientations have different propensities to buy online in the future. Hence, marketers should be aware of the online shopping orientations more likely to buy online in the future and focus their marketing programs on them. They should also try new ways to attract the online shopping orientations that may not buy online, in the hopes of changing their opinions and perceptions of the Internet and online shopping. South Africa, in particular, consists of multi-racial and diverse ethnic origins, which has resulted in a demographically diverse South African nation. Therefore, marketers need to develop a better understanding of consumers‟ online shopping orientation (Donthu and Garcia, 1999:57; Jayawardhena and Foley, 2000:19; Kau et al., 2003:140). Understanding consumers' online shopping orientation will assist marketers in being able to market to specific consumers and meet the needs of consumers effectively (Kau et al., 2003:140). Since demographic diversity influences the online shopping orientations of consumers, major opportunities for marketers will be provided by accommodating for a demographically diverse South African nation.
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  • Date Issued: 2010

Derivatives in emerging markets: a South African focus

  • Authors: Schwegler, Stefan
  • Date: 2010
  • Subjects: Derivative securities , South Africa -- Economic conditions -- 21st century
  • Language: English
  • Type: Thesis , Masters , MCom
  • Identifier: vital:9281 , http://hdl.handle.net/10948/1401 , Derivative securities , South Africa -- Economic conditions -- 21st century
  • Description: This research focused on derivative instruments which are financial securities whose values are derived from the values of underlying assets, such as shares, bonds, currencies or interest rates. Derivatives are predominantly used to manage risks in portfolios (hedging) and trading (speculation). Derivatives have been used for centuries and have developed into one of the largest global financial markets. The most common derivative instruments available to investors are options, futures, swaps and contracts for difference, as they are fairly easy to understand and apply. During the 2008/2009 global financial crisis derivatives, especially credit derivatives, made headlines and although they did not cause the crisis, they accelerated it. Furthermore, the 2008/2009 financial crisis also increased the negative sentiments many investors have towards derivatives. As a result of the crisis the growth in the global derivatives market came to a halt for the first time in decades. In light of the above, the primary objective of this study was to gain a deeper understanding of derivatives trading in emerging markets, especially in the South African context, as these financial securities are very useful portfolio management tools. The aim of this study was to describe the current state of the South African derivatives market; to investigate the role that derivative instruments played in the 2008/2009 global financial crisis; and to identify the variables influencing investors’ decisions whether or not to include derivatives in their portfolios. Given the nature of the problem stated a qualitative or phenomenological research paradigm was adopted. This paradigm was deemed suitable given the exploratory nature of the research. Primary and secondary data for this study were obtained through semi-structured personal interviews with 21 experts in the South African financial services industry and through an extensive literature review, respectively. A research instrument, based on the literature review was developed to facilitate the interviewing process. The results of the empirical investigation show that although the majority of respondents use derivative instruments in managing their portfolios, the South African derivatives market is still in its development phase. Many investors do not use derivatives frequently as they lack knowledge about derivative instruments, receive uncompetitive prices, are restricted by rules and regulations as well as investment mandates. Fourteen variables were identified as having a possible impact on investors' decisions whether or not to use derivatives in their portfolios. The five variables identified in the empirical investigation as being the most important, were the level of information available and the transparency of price determination; investor’s knowledge of different derivative instruments; investor’s level of risk tolerance; the level of liquidity in the market; and investor's knowledge and familiarity with financial markets. The findings of this study suggest that financial institutions, selling and trading derivative instruments, should concentrate on these five variables to make derivatives more attractive investment alternatives for investors. In order for South African investors to consider derivatives as suitable investments more often, it is strongly recommended to educate investors better about these products and decrease the negative sentiments investors have towards derivatives. This should be done by showing and explaining to investors that derivatives are useful hedging and portfolio management tools. It is necessary to state the dangers and benefits of derivatives, as well as the features differentiating them. Financial institutions trading derivative instruments, local education facilities (e.g. universities) and financial markets related organisations should educate investors by providing various educational tools, such as online courses, booklets, seminars or presentations about derivative products on offer. Furthermore, it is highly recommended to make derivative markets more transparent through adequate and appropriate regulations. In that, investors are better protected from counterparty risks and trade in a safer environment due to clearing houses.
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  • Date Issued: 2010

Developing a protocol for campus health service professional nurses to manage students with mental distress

  • Authors: Dalton, Linda Louise
  • Date: 2010
  • Subjects: College students -- Mental health , College students -- Mental health services , Nurses -- Mental health , Distress (Psychology)
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:10030 , http://hdl.handle.net/10948/1303 , College students -- Mental health , College students -- Mental health services , Nurses -- Mental health , Distress (Psychology)
  • Description: Professional nurses working at a campus health service have to cope with challenges such as staff shortages and budgetary constraints associated with working in a complex environment providing primary health care. The aim of primary health care includes promoting health, preventing disease and the early detection and treatment of illness. Mental health services form an integral part of the integrated primary health care package as implemented in the campus health service. Students attend the Campus Health Service for help related to their health. Health care is provided by professional nurses and counsellors through a comprehensive primary health care service which serves students as well as staff. Some students may state that they experience feelings of being stressed or depressed. Other students may complain of physical symptoms such as headache or upper backache. Upon further investigation emotional problems may be identified as the cause of the psychosomatic symptoms. The professional nurses working in the campus health service verbalised that it is sometimes difficult to identify a mental illness or mental distress as there is no effective assessment tool that they can use. Management of conditions is also problematic as there are no protocols indicating the therapeutic interventions that can be taken. The research question in this study was therefore: What information should be included in a protocol to assess and manage a student experiencing mental distress that can be used by professional nurses working in a Campus Health Service? The aim of this study is to develop a mental health care protocol for campus health service professional nurses to assess and manage university students who are experiencing mental distress. The research design of this study was qualitative, explorative, descriptive, explanatory and contextual. In this study the Delphi research technique was used to create an instrument to standardise mental health care in a campus health service. The Delphi technique is a series of sequential questionnaires or “rounds” interspersed with controlled feedback that seeks to gain the most reliable consensus of opinion of a group of experts. A questionnaire was developed based on an extensive literature review. The research population of this study consisted of two groups: professional nurses with knowledge of student health care needs and expert psychiatric nurses. The study was conducted at the Campus Health Service at a university in the Eastern Cape. The data collection and analysis was done utilising the Delphi technique. Trustworthiness was ensured by using the Lincoln and Guba Model utilising the criteria of credibility, applicability, dependability and conformability. In this study the ethical principles of beneficence, non-maleficence, justice and self determination were applied to ensure that participants are treated with respect and consideration and ensured high ethical standards. Informed consent was obtained from the participants in this study. The findings of this research were utilised to assist the researcher in developing a protocol for mental health care of students in campus health service settings.
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  • Date Issued: 2010

Developing a systematic model for the capturing and use of African oral poetry: the Bongani Sitole experience

  • Authors: Mostert, Andre
  • Date: 2010
  • Subjects: Sitole, Bongani, 1937- Communication and culture Oral tradition in literature Oral tradition -- Africa Ethnoscience -- Africa Folk poetry, African
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:3579 , http://hdl.handle.net/10962/d1002154
  • Description: Oral traditions and oral literature have long contributed to human communication. The advent of arguably the most important technology, the written word, altered human ability to create and develop. However, this development for all its potential and scope created one of the most insidious dichotomies. As the written word developed so too the oral word became devalued and pushed to the fringes of societal development. One of the unfortunate outcomes has been a focus on the nomenclatures associated with orality and oral tradition, which although of importance, has skewed where the focus could and should have been located, namely, how to support and maintain the oral word and its innate value to human society in the face of what has become rampant technological developments. It is now ironic that technology is creating a fecund environment for a rebirth of orality. The study aims to mobilize technauriture as a paradigm in order to further embed orality and oral traditions to coherently embrace this changing technological environment. The central tenet of the study is that in order to enhance the status of orality the innate value embodied in indigenous knowledge systems must be recognized. Using the work of Bongani Sitole, an oral poet, as a backdrop the study will demonstrate a basic model that can act as a foundation for the effective integration of orality into contemporary structures. This is based on work that I published in the Journal of African Contemporary Studies (2009). Given the obvious multi-disciplinary nature of the material the work covers a wide cross section of the debate, from questions of epistemology and knowledge in general in terms of oral traditions, through the consciousness and technical landscapes, via the experience with Sitole’s material to issues of copyright and ownership. This work has also been submitted for publication together with my supervisor as a co-author. The study intends to consolidate the technauriture debate and lay a solid foundation to support further study.
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  • Date Issued: 2010

Developing SOA wrappers for communication purposes in rural areas

  • Authors: Samalenge, Jimmy
  • Date: 2010
  • Subjects: Computer network architectures , Computer architecture , Computer software -- Specifications , Rural development projects -- South Africa -- Eastern Cape , Web services , System design , Technological innovations -- South Africa -- Eastern Cape
  • Language: English
  • Type: Thesis , Masters , MSc (Computer Science)
  • Identifier: vital:11386 , http://hdl.handle.net/10353/320 , Computer network architectures , Computer architecture , Computer software -- Specifications , Rural development projects -- South Africa -- Eastern Cape , Web services , System design , Technological innovations -- South Africa -- Eastern Cape
  • Description: The introduction of Web Services as a platform upon which applications can communicate has contributed a great deal towards the expansion of World Wide Web technologies. The Internet and computing technologies have been some of the factors that have contributed to the socio-economic improvement of urban and industrial areas. This research focuses on the application of Service-Oriented Architecture (SOA) and Web Services technologies in Information and Communication Technologies for Development (ICT4D) contexts. SOA is a style used to design distributed systems, and Web Services are some of the common realizations of the SOA. Web Services allow the exchange of data between two or more machines in a simple and standardized manner over the network. This has resulted in the augmentation of ways in which individuals in a society and in the world communicate. This research aims to develop a SOA-based system with services that are implemented as Web Services. The system is intended to support communication activities of Dwesa community members. The communication methods identified as the most commonly used in the Dwesa community are Short Message Services (SMSs) and voice calls. In this research we have identified further methods (i.e. Multimedia Message Service, Electronic mail and Instant Messaging) to augment communication activities in Dwesa. The developed system, therefore, exposes SMS Web Service, MMS Web Service, Email Web Service and IM Web Service that are consumed in machine-to-machine, machine-to-person and person-to-person types of communication. We have also implemented a one-stop communication shop, through a web portal which provides interfaces to the different communication modules. Elaborate functional and usability testing have also been undertaken to establish the viability and end-user acceptance of the system respectively. This research has provided the initial validation of the effectiveness of the SOA-based system in ICT4D contexts
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  • Date Issued: 2010

Development and assessment of minocycline sustained release capsule formulations

  • Authors: Sachikonye, Tinotenda Chipo Victoria
  • Date: 2010
  • Subjects: Drugs -- Controlled release , Drugs -- Dosage forms , Capsules (Pharmacy) , Drugs -- Administration , Acne -- Treatment , Tetracyclines , Antibiotics -- Side effects
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:3854 , http://hdl.handle.net/10962/d1013127
  • Description: The use of minocycline for the treatment of a broad range of systemic infections and for severe acne has been associated with vestibular side effects. The severity of side effects may lead to poor adherence to therapy by patients. The use of sustained release formulations of minocycline that display slow dissolution of minocycline following administration may be beneficial in reducing the incidence and severity of side effects. Therefore, sustained release capsule dosage forms containing 100 mg minocycline (base) were manufactured and assessed for use as sustained release oral dosage forms of minocycline. Minocycline sustained release capsules were manufactured based on matrix technologies using hydroxypropylmethyl cellulose (HPMC) and Compritol® as release retarding polymers. The rate and extent of minocycline release from the capsules was evaluated using USP Apparatus 1 and samples were analysed using a validated High Performance Liquid Chromatographic (HPLC) method with ultraviolet (UV) detection. Differences in the rate and extent of minocycline release from formulations manufactured using HPMC or Compritol® were influenced by the concentration of polymer used in the formulations. The rate and extent of minocycline release was faster and greater when low concentrations of polymer were used in formulations. The effect of different excipients on the release pattern(s) of minocycline and particularly their potential to optimise minocycline release from experimental formulations was investigated. The use of diluents such as lactose and microcrystalline cellulose (MCC) revealed that lactose facilitated minocycline release when HPMC was used as the polymer matrix. In contrast, the use of lactose as diluent resulted in slower release of minocycline from Compritol® based formulations. The addition of sodium starch glycolate to HPMC based formulations resulted in slower release of minocycline than when no sodium starch glycolate was used. Compritol® based formulations were observed to release minocycline faster following addition of sodium starch glycolate and Poloxamer 188 to experimental formulations. In vitro dissolution profiles were compared to a target or reference profile using the difference and similarity factors, ƒ1 and ƒ2 , and a one way analysis of variance (ANOVA). In addition, the mechanism of minocycline release was elucidated following fitting of dissolution data to the Korsmeyer-Peppas, Higuchi and Zero order models. Minocycline release kinetics were best described by the Korsmeyer-Peppas model and the values of the release exponent, n (italics), revealed that drug release was a result of the combined effects of minocycline diffusion through matrices and erosion of the matrices. These in vitro dissolution profiles were better fit to the Higuchi model than to the Zero order model. Two formulations that displayed a fit to the Zero order model were identified for further studies as potential dosage forms for sustained release minocycline.
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  • Date Issued: 2010

Die geskiedenis van Despatch, 1945-1995: 'n verkennende studie

  • Authors: Steyn, Jacobus Pieter
  • Date: 2010
  • Subjects: Dispatch (South Africa) -- History , Afrikaners -- South Africa -- Despatch
  • Language: Afrikaans
  • Type: Thesis , Masters , MA
  • Identifier: vital:16142 , http://hdl.handle.net/10948/1116 , Dispatch (South Africa) -- History , Afrikaners -- South Africa -- Despatch
  • Description: Hierdie studie se fokus is op die wit Afrikaanssprekende-gemeenskap van Despatch. Daar word op die sosiale, politieke en godsdienstige geskiedenis van die wit Afrikaanssprekende-gemeenskap op Despatch gekonsentreer. Die studie ondersoek slegs die geskiedenis van die wit Afrikaanssprekende-gemeenskap van Despatch aangesien die dorp bekend daarvoor is dat dit oorwegend ʼn wit Afrikaanssprekende-gemeenskap is. Die ekonomie van Despatch en die bruin en swart inwoners word egter kortliks bespreek. Die tydperk van hierdie studie handel van 1945 – 1995. Dit was tydens hierdie jare wat Despatch amptelik as ʼn munisipaliteit gefunksioneer het. Uit die aard van die saak moet die studie gebeure wat aanleiding tot die nedersetting van wit mense langs die oewer van die Swartkopsrivier bespreek. Daar word ʼn kort studie gemaak van die periode 1700 (toe die eerste wit mense hulle langs die oewers van die Swartkopsrivier gevestig het) tot 1939 (wat die begin was van permanente nedersettings langs die syspoor op Despatch). Sekere gebeure word verder as 1995 bespreek. Dit word gedoen om kontinuiteit te behou wanneer belangrike gebeurtenisse, soos die oorskakeling na demokratiese regering in 1994, ondersoek word. Die doel van die studie is om ʼn verkennende ondersoek rakende die geskiedenis van die wit Afrikaanssprekende-gemeenskap van Despatch te doen. Die studie is ʼn verkennende ondersoek omrede nie al die aspekte van die geskiedenis van Despatch ondersoek sal word nie. Slegs die wit Afrikaanssprekende-gemeenskap se sosiale strukture (onderwys, godsdiens en kultuur), munisipale bestuur en politiek sal ondersoek word.
  • Full Text:
  • Date Issued: 2010
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