A model for the implementation of Integrated Quality Management System (IQMS) in selected Eastern Cape schools
- Authors: Sambumbu, Antony Matemba
- Date: 2013
- Language: English
- Type: Thesis , Doctoral , PhD (in Public Administration)
- Identifier: vital:11703 , http://hdl.handle.net/10353/d1015152
- Description: The main purpose of this research was to evaluate the processes for IQMS implementation in the selected Eastern Cape schools so as to determine the model that can be postulated for improving the IQMS implementation in the South African schools. While mainly deriving from the fact that so far, empirical research reveals that the process for IQMS implementation has been marred with a significant number of challenges. The study star begins with the formulation of a thought-process in its overriding hypothesis. The hypothesis is that the application of a five constructs’ IQMS Implementation Model in Figure 1.1 would signficantly influence the successful IQMS implementation in South African schools. The five constructs that are outlined in the IQMS Implementation Model in Figure 1.1 include: (1) Considering the Notion of “Quality” and Whole School Evaluation, (2) Performance Management and Developmental Appraisals, (3) Considering Key Success Factors for IQMS Implementation, (4) the Use of Appropriate Implementation Processes, Systems and Methods, and (5) Constant Monitoring, and Evaluations and Applications of the Improvement Actions. Despite the fact that the integrated quality management theories strongly support this hypothesis, the study, in line with these five constructs which were also aligned with the five research questions and hypotheses that guided this research applies exploratory factor analysis. This has been done in order to further define the structure of the IQMS Implementation Model in Figure 1.1 prior to applying confirmatory factor analysis in order to determine whether the IQMS Implementation Model in Figure 1.1 would perfectly reproduce the 53 observed sample data which was used in the study. The results confirmed the overriding hypothesis in the IQMS Implementation Model in Figure 1.1 which is that effectiveness of the IQMS implementation processes in the South African schools can be significantly influenced by the application of the five constructs. These include: Considering the Notion of “Quality” and Whole School Evaluation, Performance Management and Developmental Appraisals, Considering Key Success Factors for IQMS Implementation, the Use of the Appropriate Implementation Processes, Systems and Methods, and Undertaking Constant Monitoring, Evaluations and Improvement Action. In effect, it was recommended that the Eastern Cape Department of Education must adopt the IQMS implementation Model in Figure 1.1 in order to effectively implement its integrated quality management systems. Despite examining the limitations of the study, the recommendations chapter also discussed the area for further research in which it was suggested that the area for further research would be: Evaluating the impact of appropriate standards’ setting on the successful IQMS implementation in the schools in the Eastern Cape schools.
- Full Text:
- Date Issued: 2013
- Authors: Sambumbu, Antony Matemba
- Date: 2013
- Language: English
- Type: Thesis , Doctoral , PhD (in Public Administration)
- Identifier: vital:11703 , http://hdl.handle.net/10353/d1015152
- Description: The main purpose of this research was to evaluate the processes for IQMS implementation in the selected Eastern Cape schools so as to determine the model that can be postulated for improving the IQMS implementation in the South African schools. While mainly deriving from the fact that so far, empirical research reveals that the process for IQMS implementation has been marred with a significant number of challenges. The study star begins with the formulation of a thought-process in its overriding hypothesis. The hypothesis is that the application of a five constructs’ IQMS Implementation Model in Figure 1.1 would signficantly influence the successful IQMS implementation in South African schools. The five constructs that are outlined in the IQMS Implementation Model in Figure 1.1 include: (1) Considering the Notion of “Quality” and Whole School Evaluation, (2) Performance Management and Developmental Appraisals, (3) Considering Key Success Factors for IQMS Implementation, (4) the Use of Appropriate Implementation Processes, Systems and Methods, and (5) Constant Monitoring, and Evaluations and Applications of the Improvement Actions. Despite the fact that the integrated quality management theories strongly support this hypothesis, the study, in line with these five constructs which were also aligned with the five research questions and hypotheses that guided this research applies exploratory factor analysis. This has been done in order to further define the structure of the IQMS Implementation Model in Figure 1.1 prior to applying confirmatory factor analysis in order to determine whether the IQMS Implementation Model in Figure 1.1 would perfectly reproduce the 53 observed sample data which was used in the study. The results confirmed the overriding hypothesis in the IQMS Implementation Model in Figure 1.1 which is that effectiveness of the IQMS implementation processes in the South African schools can be significantly influenced by the application of the five constructs. These include: Considering the Notion of “Quality” and Whole School Evaluation, Performance Management and Developmental Appraisals, Considering Key Success Factors for IQMS Implementation, the Use of the Appropriate Implementation Processes, Systems and Methods, and Undertaking Constant Monitoring, Evaluations and Improvement Action. In effect, it was recommended that the Eastern Cape Department of Education must adopt the IQMS implementation Model in Figure 1.1 in order to effectively implement its integrated quality management systems. Despite examining the limitations of the study, the recommendations chapter also discussed the area for further research in which it was suggested that the area for further research would be: Evaluating the impact of appropriate standards’ setting on the successful IQMS implementation in the schools in the Eastern Cape schools.
- Full Text:
- Date Issued: 2013
A social realist account of the tutorial system at the University of Johannesburg
- Authors: Layton, Delia Melanie
- Date: 2013
- Subjects: University of Johannesburg Education, Higher -- South Africa Tutors and tutoring -- South Africa College teaching -- South Africa Archer, Margaret Scotford College student development programs -- South Africa Social realism , Tutorial system
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1314 , http://hdl.handle.net/10962/d1001621
- Description: Using Margaret Archer’s social realist methodology, this study critically examines the construction of the tutorial system in several departments and faculties at the Auckland Park campus of the University of Johannesburg. The purpose of the study is to investigate the extent to which tutorials support the acquisition of programme and disciplinary epistemologies. Social realism calls for analytical dualism of ‘the people’ (agents) from ‘the parts’ (structure and culture). This requires the separate consideration of structures (social systems, rules, roles, practices, policies, institutions, and organisational structures like committees, units, departments, faculties), culture (ideologies, theories, beliefs and values as evidenced in discourses), and agency (people and their ability to act within and upon their own world in terms of their social roles and positions dependent on their ability to activate their emergent properties and powers). Through this investigation, an understanding was gained into how the emergent properties and powers contained within the material, ideational and agential elements helped to generate certain events and practices in the tutorial system. These generative mechanisms were examined to explore whether they enabled or constrained the construction of the tutorial system to provide epistemological access. The study shows that while many official policy documents construct the tutorial system as being an intervention to support academic success, particularly for first-years, there are some tensions within the document discourses, where, on the one hand, student success is constructed in terms of throughput numbers, or, on the other hand, as being about becoming a particular kind of person who is able to access and add to powerful knowledge. Furthermore, the study found that policies are not being consistently implemented. While certain key agents and actors, in the form of management, academics and tutors, were found to be able to overcome constraints and introduce innovative ways of enhancing access to target epistemologies, there is a need for consideration of structural and cultural constraints. For example, structures in the form of funding, venues and timetabling were found to constrain the tutorial system as did some of the discourses in the cultural domain: for example, in the form of certain dominant discourses around teaching and learning, beliefs about the purpose of the tutorial and the relationship between academics and the tutorial system. The study also found that the ontological aspects of ‘learning to be’ were not fore-grounded to any great extent in the ways in which the tutorial system was constructed. There needs to be more consideration of the ontological as well as the epistemological aspects of first-year study so as to take cognisance of the different learning needs of an increasingly diverse student body and to encourage the development of the student agency necessary for a deep engagement with the disciplinary epistemologies.
- Full Text:
- Date Issued: 2013
- Authors: Layton, Delia Melanie
- Date: 2013
- Subjects: University of Johannesburg Education, Higher -- South Africa Tutors and tutoring -- South Africa College teaching -- South Africa Archer, Margaret Scotford College student development programs -- South Africa Social realism , Tutorial system
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1314 , http://hdl.handle.net/10962/d1001621
- Description: Using Margaret Archer’s social realist methodology, this study critically examines the construction of the tutorial system in several departments and faculties at the Auckland Park campus of the University of Johannesburg. The purpose of the study is to investigate the extent to which tutorials support the acquisition of programme and disciplinary epistemologies. Social realism calls for analytical dualism of ‘the people’ (agents) from ‘the parts’ (structure and culture). This requires the separate consideration of structures (social systems, rules, roles, practices, policies, institutions, and organisational structures like committees, units, departments, faculties), culture (ideologies, theories, beliefs and values as evidenced in discourses), and agency (people and their ability to act within and upon their own world in terms of their social roles and positions dependent on their ability to activate their emergent properties and powers). Through this investigation, an understanding was gained into how the emergent properties and powers contained within the material, ideational and agential elements helped to generate certain events and practices in the tutorial system. These generative mechanisms were examined to explore whether they enabled or constrained the construction of the tutorial system to provide epistemological access. The study shows that while many official policy documents construct the tutorial system as being an intervention to support academic success, particularly for first-years, there are some tensions within the document discourses, where, on the one hand, student success is constructed in terms of throughput numbers, or, on the other hand, as being about becoming a particular kind of person who is able to access and add to powerful knowledge. Furthermore, the study found that policies are not being consistently implemented. While certain key agents and actors, in the form of management, academics and tutors, were found to be able to overcome constraints and introduce innovative ways of enhancing access to target epistemologies, there is a need for consideration of structural and cultural constraints. For example, structures in the form of funding, venues and timetabling were found to constrain the tutorial system as did some of the discourses in the cultural domain: for example, in the form of certain dominant discourses around teaching and learning, beliefs about the purpose of the tutorial and the relationship between academics and the tutorial system. The study also found that the ontological aspects of ‘learning to be’ were not fore-grounded to any great extent in the ways in which the tutorial system was constructed. There needs to be more consideration of the ontological as well as the epistemological aspects of first-year study so as to take cognisance of the different learning needs of an increasingly diverse student body and to encourage the development of the student agency necessary for a deep engagement with the disciplinary epistemologies.
- Full Text:
- Date Issued: 2013
A strategy to facilitate renewed resilience to re-establish meaning for persons with spinal cord injuries
- Authors: Willemse, Hermanus Barend
- Date: 2013
- Subjects: Spinal cord -- Wounds and injuries , Spinal cord -- Wounds and injuries -- Rehabilitation
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10021 , http://hdl.handle.net/10948/d1008119 , Spinal cord -- Wounds and injuries , Spinal cord -- Wounds and injuries -- Rehabilitation
- Description: Census estimates in 2010 indicated that 6,3 percent South Africans aged 5 years and older are currently classified as disabled in five of the nine provinces in the country. The national figure for 2005 was 5 percent, with the figure for females (6,5 percent) slightly higher than that for males (6,1percent). Spinal cord injured persons and their significant others experience a range of emotions which affect their relationships with themselves, others and their environment. To deal with the life-changing consequences of the injury and regain control, these persons not only require a variety of coping strategies but rediscovery of resilience is inevitable if the experience of personal purpose and meaningful existence is ever to be regained. In the Nelson Mandela Bay Municipal area, Port Elizabeth, South Africa – the geographical area in which this research study was undertaken - persons with spinal cord injuries have many challenges to face due to the shortcomings the existing resource for health care delivery in the post-discharge phase. The research objectives identified for the study were, firstly, to explore and describe the lived experiences of persons with spinal cord injuries; secondly, to explore and describe the lived experiences of the significant others of persons with spinal cord injuries; and thirdly, to develop a strategy to guide the professional nurse and the health care team in facilitating the health care of persons with spinal cord injuries. The study was a qualitative, exploratory, descriptive, and contextual method of inquiry. The data obtained was used to formulate the strategy with its three sub-strategies to guide professional nurses and the health care team to facilitate renewed resilience and the re-establishment of meaning for persons with spinal cord injuries. Although the experiences of the significant others were explored in order to thicken the description of the experiences of persons with spinal cord injuries, the strategy developed was limited to the persons with spinal cord injuries. Although it is well documented that there are significant physical needs, the themes that emerged from the current research mostly related to psychological and social aspects. In acknowledging the human being as unitary multi-dimensional being, the researcher in his discussions and quest to address the issue of renewed resilience in spinal cord injured persons towards finding purpose and re-establishing meaning in their lives, focused on their psychological, spiritual and social health. The outcome of the study is a strategy constructed to facilitate renewed resilience, and three sub-strategies ‘addressing experienced emotions’, ‘facilitating meaningful relationships’ and ‘facilitating effective coping’. The strategy has as purpose the empowering of spinal injured persons in their efforts to re-establish meaning by serving as a tool to guide professional nurses and members of the health care team in their facilitating of renewed resilience in persons with spinal cord injury. It is envisaged that the co-ordination of the strategy will take place from the health care delivery facility nearest to the spinal cord injured individual concerned. In order for persons with spinal cord injuries to become accountable members of society, all levels and aspects of care aimed at physical, psychological, spiritual and social well-being need to be holistically addressed. The front-line role of the professional nurse is vital as the professional nurse acts as the co-ordinator for the health care team in ensuring that persons with spinal cord injuries receive quality and holistic care in order to deal meaningfully with the life-altering consequences of a spinal cord injury. Through this study, valuable insight was gained with regard to experiences of both persons with spinal cord injuries and that of their significant others. Recommendations were made for nursing practice, nursing education and nursing research.
- Full Text:
- Date Issued: 2013
- Authors: Willemse, Hermanus Barend
- Date: 2013
- Subjects: Spinal cord -- Wounds and injuries , Spinal cord -- Wounds and injuries -- Rehabilitation
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10021 , http://hdl.handle.net/10948/d1008119 , Spinal cord -- Wounds and injuries , Spinal cord -- Wounds and injuries -- Rehabilitation
- Description: Census estimates in 2010 indicated that 6,3 percent South Africans aged 5 years and older are currently classified as disabled in five of the nine provinces in the country. The national figure for 2005 was 5 percent, with the figure for females (6,5 percent) slightly higher than that for males (6,1percent). Spinal cord injured persons and their significant others experience a range of emotions which affect their relationships with themselves, others and their environment. To deal with the life-changing consequences of the injury and regain control, these persons not only require a variety of coping strategies but rediscovery of resilience is inevitable if the experience of personal purpose and meaningful existence is ever to be regained. In the Nelson Mandela Bay Municipal area, Port Elizabeth, South Africa – the geographical area in which this research study was undertaken - persons with spinal cord injuries have many challenges to face due to the shortcomings the existing resource for health care delivery in the post-discharge phase. The research objectives identified for the study were, firstly, to explore and describe the lived experiences of persons with spinal cord injuries; secondly, to explore and describe the lived experiences of the significant others of persons with spinal cord injuries; and thirdly, to develop a strategy to guide the professional nurse and the health care team in facilitating the health care of persons with spinal cord injuries. The study was a qualitative, exploratory, descriptive, and contextual method of inquiry. The data obtained was used to formulate the strategy with its three sub-strategies to guide professional nurses and the health care team to facilitate renewed resilience and the re-establishment of meaning for persons with spinal cord injuries. Although the experiences of the significant others were explored in order to thicken the description of the experiences of persons with spinal cord injuries, the strategy developed was limited to the persons with spinal cord injuries. Although it is well documented that there are significant physical needs, the themes that emerged from the current research mostly related to psychological and social aspects. In acknowledging the human being as unitary multi-dimensional being, the researcher in his discussions and quest to address the issue of renewed resilience in spinal cord injured persons towards finding purpose and re-establishing meaning in their lives, focused on their psychological, spiritual and social health. The outcome of the study is a strategy constructed to facilitate renewed resilience, and three sub-strategies ‘addressing experienced emotions’, ‘facilitating meaningful relationships’ and ‘facilitating effective coping’. The strategy has as purpose the empowering of spinal injured persons in their efforts to re-establish meaning by serving as a tool to guide professional nurses and members of the health care team in their facilitating of renewed resilience in persons with spinal cord injury. It is envisaged that the co-ordination of the strategy will take place from the health care delivery facility nearest to the spinal cord injured individual concerned. In order for persons with spinal cord injuries to become accountable members of society, all levels and aspects of care aimed at physical, psychological, spiritual and social well-being need to be holistically addressed. The front-line role of the professional nurse is vital as the professional nurse acts as the co-ordinator for the health care team in ensuring that persons with spinal cord injuries receive quality and holistic care in order to deal meaningfully with the life-altering consequences of a spinal cord injury. Through this study, valuable insight was gained with regard to experiences of both persons with spinal cord injuries and that of their significant others. Recommendations were made for nursing practice, nursing education and nursing research.
- Full Text:
- Date Issued: 2013
A study of maximum and minimum operators with applications to piecewise linear payoff functions
- Authors: Seedat, Ebrahim
- Date: 2013
- Subjects: Options (Finance) Piecewise linear topology Geometry, Affine Riesz spaces Lattice theory Algebra, Boolean Pricing , Max and min operators
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:931 , http://hdl.handle.net/10962/d1001457
- Description: The payoff functions of contingent claims (options) of one variable are prominent in Financial Economics and thus assume a fundamental role in option pricing theory. Some of these payoff functions are continuous, piecewise-defined and linear or affine. Such option payoff functions can be analysed in a useful way when they are represented in additive, Boolean normal, graphical and linear form. The issue of converting such payoff functions expressed in the additive, linear or graphical form into an equivalent Boolean normal form, has been considered by several authors for more than half-a-century to better-understand the role of such functions. One aspect of our study is to unify the foregoing different forms of representation, by creating algorithms that convert a payoff function expressed in graphical form into Boolean normal form and then into the additive form and vice versa. Applications of these algorithms are considered in a general theoretical sense and also in the context of specific option contracts wherever relevant. The use of these algorithms have yielded easy computation of the area enclosed by the graph of various functions using min and max operators in several ways, which, in our opinion, are important in option pricing. To summarise, this study effectively dealt with maximum and minimum operators from several perspectives
- Full Text:
- Date Issued: 2013
- Authors: Seedat, Ebrahim
- Date: 2013
- Subjects: Options (Finance) Piecewise linear topology Geometry, Affine Riesz spaces Lattice theory Algebra, Boolean Pricing , Max and min operators
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:931 , http://hdl.handle.net/10962/d1001457
- Description: The payoff functions of contingent claims (options) of one variable are prominent in Financial Economics and thus assume a fundamental role in option pricing theory. Some of these payoff functions are continuous, piecewise-defined and linear or affine. Such option payoff functions can be analysed in a useful way when they are represented in additive, Boolean normal, graphical and linear form. The issue of converting such payoff functions expressed in the additive, linear or graphical form into an equivalent Boolean normal form, has been considered by several authors for more than half-a-century to better-understand the role of such functions. One aspect of our study is to unify the foregoing different forms of representation, by creating algorithms that convert a payoff function expressed in graphical form into Boolean normal form and then into the additive form and vice versa. Applications of these algorithms are considered in a general theoretical sense and also in the context of specific option contracts wherever relevant. The use of these algorithms have yielded easy computation of the area enclosed by the graph of various functions using min and max operators in several ways, which, in our opinion, are important in option pricing. To summarise, this study effectively dealt with maximum and minimum operators from several perspectives
- Full Text:
- Date Issued: 2013
A study of the first group of Friars Minor (Franciscans) in South Africa, c. 1932-1960
- Authors: Nogemane, Vumile
- Date: 2013
- Subjects: Franciscans -- South Africa -- History
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2530 , http://hdl.handle.net/10962/d1001859
- Description: In 1932, six Missionary Franciscan Friars from Bavaria came to South Africa at the invitation of Bishop Adalbero Michael Fleischer (1874-1963), a Mariannhill missionary in Natal. His vision was that they would establish a “Franciscan Family” there. Despite this invitation, the Friars were not welcomed by the Mariannhill community and went on to found the Mount Currie Prefecture (Diocese of Kokstad) in 1935. There the Franciscans became involved in the life of the ordinary people, who were otherwise abandoned by the government. Among other activities, they provided schools and gardens, and embarked on skills development projects for the youth. The Holy Cross Sisters - whose arrival in 1926 pre-dated that of the Friars - played a crucial role in these developments. From 1952, their educational work would be supplemented by the medical work of the Franciscan Missionaries of Mary Sisters. The arrival of Irish Franciscans (1946) and English Franciscans (1948) brought tensions and differing interpretations of the form that the vision should take. In addition, the Friars were men of their times and products of their particular backgrounds. For example, while some saw their African converts as equals, others were prejudiced against them. However, this thesis – the work of an “insider” to the faith and to the Order, argues that despite tensions and shortcomings, the settlement, and continuing presence, of the Franciscan Friars and Sisters in the Eastern Cape was an eventual realization of Bishop Fleischer’s vision, even though in a slightly different manner from the original ideal. In the early nineteen sixties a new and powerful spirit invaded the Catholic Church. The Second Vatican Council took place from 1962 to 1965. It may be argued that, from that time onward, the Church has never been the same again. In accordance with this call and invitation of the Second Vatican Council for quite some time it has been my earnest desire to get down into a more in-depth study of the history of the Franciscans in South Africa than that provided by the two existing works on this topic. It is my hope that this thesis will contribute to a soul-searching of the Franciscans as they continue to live and minister to the people of South Africa. This history will hopefully teach us to learn from and be inspired by the great and heroic deeds of our spiritual forebears – our Franciscan brothers and sisters – and also teach us to learn from their mistakes.
- Full Text:
- Date Issued: 2013
- Authors: Nogemane, Vumile
- Date: 2013
- Subjects: Franciscans -- South Africa -- History
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2530 , http://hdl.handle.net/10962/d1001859
- Description: In 1932, six Missionary Franciscan Friars from Bavaria came to South Africa at the invitation of Bishop Adalbero Michael Fleischer (1874-1963), a Mariannhill missionary in Natal. His vision was that they would establish a “Franciscan Family” there. Despite this invitation, the Friars were not welcomed by the Mariannhill community and went on to found the Mount Currie Prefecture (Diocese of Kokstad) in 1935. There the Franciscans became involved in the life of the ordinary people, who were otherwise abandoned by the government. Among other activities, they provided schools and gardens, and embarked on skills development projects for the youth. The Holy Cross Sisters - whose arrival in 1926 pre-dated that of the Friars - played a crucial role in these developments. From 1952, their educational work would be supplemented by the medical work of the Franciscan Missionaries of Mary Sisters. The arrival of Irish Franciscans (1946) and English Franciscans (1948) brought tensions and differing interpretations of the form that the vision should take. In addition, the Friars were men of their times and products of their particular backgrounds. For example, while some saw their African converts as equals, others were prejudiced against them. However, this thesis – the work of an “insider” to the faith and to the Order, argues that despite tensions and shortcomings, the settlement, and continuing presence, of the Franciscan Friars and Sisters in the Eastern Cape was an eventual realization of Bishop Fleischer’s vision, even though in a slightly different manner from the original ideal. In the early nineteen sixties a new and powerful spirit invaded the Catholic Church. The Second Vatican Council took place from 1962 to 1965. It may be argued that, from that time onward, the Church has never been the same again. In accordance with this call and invitation of the Second Vatican Council for quite some time it has been my earnest desire to get down into a more in-depth study of the history of the Franciscans in South Africa than that provided by the two existing works on this topic. It is my hope that this thesis will contribute to a soul-searching of the Franciscans as they continue to live and minister to the people of South Africa. This history will hopefully teach us to learn from and be inspired by the great and heroic deeds of our spiritual forebears – our Franciscan brothers and sisters – and also teach us to learn from their mistakes.
- Full Text:
- Date Issued: 2013
A value framework for information and communication technology governance in South African higher education institutions
- Authors: Johl, Christian Peter
- Date: 2013
- Subjects: Information technology -- South Africa -- Management , Universities and colleges -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:9821 , http://hdl.handle.net/10948/d1020281
- Description: The public higher education sector in South Africa is governed by an act of Parliament which defines the governance organs and mechanisms required within institutions and the sector. This doctoral thesis begins by contextualising ICT governance within the levels of systemic governance in South Africa that have relevance to this study. It then continues by advancing the understanding of the state of Information and Communication Technology (ICT) governance in public higher education institutions in South Africa by investigating the level of pervasiveness, the level of ICT process maturity and the alignment of ICT to the institutional processes within these institutions. Subsequently, this thesis results in the production of a contextually appropriate value framework that contributes towards an understanding of the need for the improvement of ICT governance. A survey of the extant literature on governance, ICT governance, and the frameworks and standards associated with governance indicates that the methodological approach currently favoured in ICT governance research is predominantly interpretive and based on surveys and interviews. This study leans towards a Design Science approach paradigm using surveys for the qualitative data collection process. The empirical research data was gathered from the highest ranking ICT officers at public higher education institutions in South Africa. This study makes contributions on a number of levels – from the first known measurement of ICT pervasiveness within the context of higher education, to the measurement of ICT process maturity and the measurement of the alignment of ICT and institutional processes, to the design of a value framework that breaks down governance into layers indicating which governance organs are appropriate at the relevant layers and which governance mechanisms can be used to address governance at each layer of governance. This study therefore makes a contribution to the ICT domain for development research by demonstrating praxis for the improvement of ICT governance implementation in the public higher education sector in South Africa. This study makes both method design and practical contributions to the ICT body of knowledge at various stages of the research process. These contributions include reflection on and analysis of the data gathering approaches that occur within the public higher education sector and in the complex environment of institutional autonomy and academic freedom; the use of Agency Theory to support the ‗governance intent‘ transfer between the layers of governance in the value framework and the synthesis of the improvement of ICT governance with value creation. The findings of this study further contribute to an understanding of the dynamics and interrelatedness of aspects of governance and management, while making a contribution to theoretical research by extending practical and empirical understanding of the ICT governance environment in the public higher education sector in South Africa.
- Full Text:
- Date Issued: 2013
- Authors: Johl, Christian Peter
- Date: 2013
- Subjects: Information technology -- South Africa -- Management , Universities and colleges -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:9821 , http://hdl.handle.net/10948/d1020281
- Description: The public higher education sector in South Africa is governed by an act of Parliament which defines the governance organs and mechanisms required within institutions and the sector. This doctoral thesis begins by contextualising ICT governance within the levels of systemic governance in South Africa that have relevance to this study. It then continues by advancing the understanding of the state of Information and Communication Technology (ICT) governance in public higher education institutions in South Africa by investigating the level of pervasiveness, the level of ICT process maturity and the alignment of ICT to the institutional processes within these institutions. Subsequently, this thesis results in the production of a contextually appropriate value framework that contributes towards an understanding of the need for the improvement of ICT governance. A survey of the extant literature on governance, ICT governance, and the frameworks and standards associated with governance indicates that the methodological approach currently favoured in ICT governance research is predominantly interpretive and based on surveys and interviews. This study leans towards a Design Science approach paradigm using surveys for the qualitative data collection process. The empirical research data was gathered from the highest ranking ICT officers at public higher education institutions in South Africa. This study makes contributions on a number of levels – from the first known measurement of ICT pervasiveness within the context of higher education, to the measurement of ICT process maturity and the measurement of the alignment of ICT and institutional processes, to the design of a value framework that breaks down governance into layers indicating which governance organs are appropriate at the relevant layers and which governance mechanisms can be used to address governance at each layer of governance. This study therefore makes a contribution to the ICT domain for development research by demonstrating praxis for the improvement of ICT governance implementation in the public higher education sector in South Africa. This study makes both method design and practical contributions to the ICT body of knowledge at various stages of the research process. These contributions include reflection on and analysis of the data gathering approaches that occur within the public higher education sector and in the complex environment of institutional autonomy and academic freedom; the use of Agency Theory to support the ‗governance intent‘ transfer between the layers of governance in the value framework and the synthesis of the improvement of ICT governance with value creation. The findings of this study further contribute to an understanding of the dynamics and interrelatedness of aspects of governance and management, while making a contribution to theoretical research by extending practical and empirical understanding of the ICT governance environment in the public higher education sector in South Africa.
- Full Text:
- Date Issued: 2013
Absorptive capacity and information technology adoption strategies in Kenyan SMEs
- Authors: Ndiege, Joshua Rumo Arongo
- Date: 2013
- Language: English
- Type: Thesis , Doctoral , PhD (Information Systems)
- Identifier: vital:11140 , http://hdl.handle.net/10353/d1014672
- Description: Although Small and Medium Enterprises (SMEs), arguably, make up a significant part of economic development in many countries, these enterprises have continued to face challenges especially in developing countries like Kenya. With Information Technology (IT) being considered a critical component of the survival of SMEs, many are striving to invest in it. However, a number of these SMEs are still far from realising the full potential of their IT investments. In today‟s challenging and dynamic business environment, SMEs need to leverage both internal and external knowledge, exploit it to help improve and maintain their competitiveness, and consequently, their survival. This study has endeavoured to address the IT adoption strategy challenges experienced by SMEs in Kenya and other developing countries, as these have been largely flawed. The study has explored on the way in which these enterprises can build strong Absorptive Capacities (AC) and exploit these to improve their IT adoption processes through a model of AC. To achieve this, a qualitative, interpretive case study research approach was employed in this study. The findings of this study suggest that although AC plays a critical role in the performance of SMEs in Kenya, many of these enterprises have low levels of AC. It also became clear that all the SMEs that participated in the study had not attained maturity in their IT adoption process. However, SMEs that exhibited strong AC employed the use of more superior IT adoption processes than did their counterparts with low levels of AC. From the results of this study an IT Adoption Strategy Improvement Model (ITASIM) has been developed to help SMEs improve their IT adoption strategies. The model focuses on improving SMEs‟ AC and injecting these alongside the elements of a good strategy in the SMEs‟ IT adoption process. Furthermore, in order to help in the effective implementation of ITASIM, implementation guidelines have been developed.
- Full Text:
- Date Issued: 2013
- Authors: Ndiege, Joshua Rumo Arongo
- Date: 2013
- Language: English
- Type: Thesis , Doctoral , PhD (Information Systems)
- Identifier: vital:11140 , http://hdl.handle.net/10353/d1014672
- Description: Although Small and Medium Enterprises (SMEs), arguably, make up a significant part of economic development in many countries, these enterprises have continued to face challenges especially in developing countries like Kenya. With Information Technology (IT) being considered a critical component of the survival of SMEs, many are striving to invest in it. However, a number of these SMEs are still far from realising the full potential of their IT investments. In today‟s challenging and dynamic business environment, SMEs need to leverage both internal and external knowledge, exploit it to help improve and maintain their competitiveness, and consequently, their survival. This study has endeavoured to address the IT adoption strategy challenges experienced by SMEs in Kenya and other developing countries, as these have been largely flawed. The study has explored on the way in which these enterprises can build strong Absorptive Capacities (AC) and exploit these to improve their IT adoption processes through a model of AC. To achieve this, a qualitative, interpretive case study research approach was employed in this study. The findings of this study suggest that although AC plays a critical role in the performance of SMEs in Kenya, many of these enterprises have low levels of AC. It also became clear that all the SMEs that participated in the study had not attained maturity in their IT adoption process. However, SMEs that exhibited strong AC employed the use of more superior IT adoption processes than did their counterparts with low levels of AC. From the results of this study an IT Adoption Strategy Improvement Model (ITASIM) has been developed to help SMEs improve their IT adoption strategies. The model focuses on improving SMEs‟ AC and injecting these alongside the elements of a good strategy in the SMEs‟ IT adoption process. Furthermore, in order to help in the effective implementation of ITASIM, implementation guidelines have been developed.
- Full Text:
- Date Issued: 2013
Afro-communitarianism and the nature of reconciliation
- Authors: Oelofsen, Rianna
- Date: 2013
- Subjects: Ubuntu (Philosophy) Reconciliation -- South Africa Communitarianism -- Africa Philosophy, African
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2736 , http://hdl.handle.net/10962/d1006809
- Description: In this dissertation I sketch a conception of personhood as understood from within an Afrocommunitarian worldview, and argue that this understanding of personhood has implications for understanding the concept of reconciliation. Understanding ‘being human’ as a collective, communal enterprise has implications for how responsibility, justice, forgiveness and humanization (all cognate concepts of reconciliation) are conceptualized. In line with this understanding of reconciliation and its cognate concepts, I argue that the humanization of self and other (according to the Afrocommunitarian understanding of personhood) is required for addressing the ‘inferiority’ and concurrent ‘superiority’ racial complexes as diagnosed by Franz Fanon and Steve Biko. These complexes reach deeply within individual and collective psyches and political identities, and I argue that political solutions to protracted conflict (in South Africa and other racially charged contexts) which do not address these deeply entrenched pathologies will be inadequate according to an Afrocommunitarian framework.
- Full Text:
- Date Issued: 2013
- Authors: Oelofsen, Rianna
- Date: 2013
- Subjects: Ubuntu (Philosophy) Reconciliation -- South Africa Communitarianism -- Africa Philosophy, African
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2736 , http://hdl.handle.net/10962/d1006809
- Description: In this dissertation I sketch a conception of personhood as understood from within an Afrocommunitarian worldview, and argue that this understanding of personhood has implications for understanding the concept of reconciliation. Understanding ‘being human’ as a collective, communal enterprise has implications for how responsibility, justice, forgiveness and humanization (all cognate concepts of reconciliation) are conceptualized. In line with this understanding of reconciliation and its cognate concepts, I argue that the humanization of self and other (according to the Afrocommunitarian understanding of personhood) is required for addressing the ‘inferiority’ and concurrent ‘superiority’ racial complexes as diagnosed by Franz Fanon and Steve Biko. These complexes reach deeply within individual and collective psyches and political identities, and I argue that political solutions to protracted conflict (in South Africa and other racially charged contexts) which do not address these deeply entrenched pathologies will be inadequate according to an Afrocommunitarian framework.
- Full Text:
- Date Issued: 2013
An analysis of the role of Non-Govermental Organisations in the social welfare policy process: a case study of Zimbabwe
- Authors: Gwarinda, Shungu Agnes
- Date: 2013
- Subjects: Non-governmental organizations -- Zimbabwe , Social service -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/6606 , vital:21125
- Description: This study is an interpretive analysis of the roles of NGOs in the social policy process, using the case of postcolonial Zimbabwe. Assessing the period between 2000 and 2010 and the prevailing unique socio-economic and geopolitical crisis, the study engages the major contextual factors influencing evolution of NGOs and their engagement in the policy process. It focuses on the conceptual and state – civil society contestations on the legitimacy of NGO’s as well as an assessment of their impact on the social policy process. NGOs in Zimbabwe have played two major and two minor roles in the social policy process as identified in the study in terms of their prominence and impact on the policy process. That is: policy implementer role complementing state social policy provision, democratisation to pluralism the social policy arena as the major roles; educational role to developing interventions for better social policy and watchdog role monitoring government and other state institutions in meeting the social policy needs of citizens. The thesis argues that analysis of NGOs is embedded in understanding the role of the state and dialectical relationship between state and civil society. Using a neo-Marxist perspective and social democratic approach to the role of the state in social policy, the theoretical generalisations of the study are that NGOs have a legitimate role to play in the social policy process. However, this is defined by the nature and role of the state itself as central driving agent in social policy. Therefore, the roles NGOs are not exclusive in themselves but are anchored within the contextual framework and its definition of societal spheres within it. The thesis established the evolution of the NGO sector in Zimbabwe, its impact on the social, political landscape and argues that the democratisation agenda in Zimbabwe requires a political solution embedded in a transformative state as the panacea for building a redistributive and participatory social policy agenda that engages with non-state actors, NGOs included within a developmental framework. Conclusively, the thesis proposes a theoretical distinction between NGOs as service oriented entities and CSOs as forums for associational life and civic engagement.
- Full Text:
- Date Issued: 2013
- Authors: Gwarinda, Shungu Agnes
- Date: 2013
- Subjects: Non-governmental organizations -- Zimbabwe , Social service -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/6606 , vital:21125
- Description: This study is an interpretive analysis of the roles of NGOs in the social policy process, using the case of postcolonial Zimbabwe. Assessing the period between 2000 and 2010 and the prevailing unique socio-economic and geopolitical crisis, the study engages the major contextual factors influencing evolution of NGOs and their engagement in the policy process. It focuses on the conceptual and state – civil society contestations on the legitimacy of NGO’s as well as an assessment of their impact on the social policy process. NGOs in Zimbabwe have played two major and two minor roles in the social policy process as identified in the study in terms of their prominence and impact on the policy process. That is: policy implementer role complementing state social policy provision, democratisation to pluralism the social policy arena as the major roles; educational role to developing interventions for better social policy and watchdog role monitoring government and other state institutions in meeting the social policy needs of citizens. The thesis argues that analysis of NGOs is embedded in understanding the role of the state and dialectical relationship between state and civil society. Using a neo-Marxist perspective and social democratic approach to the role of the state in social policy, the theoretical generalisations of the study are that NGOs have a legitimate role to play in the social policy process. However, this is defined by the nature and role of the state itself as central driving agent in social policy. Therefore, the roles NGOs are not exclusive in themselves but are anchored within the contextual framework and its definition of societal spheres within it. The thesis established the evolution of the NGO sector in Zimbabwe, its impact on the social, political landscape and argues that the democratisation agenda in Zimbabwe requires a political solution embedded in a transformative state as the panacea for building a redistributive and participatory social policy agenda that engages with non-state actors, NGOs included within a developmental framework. Conclusively, the thesis proposes a theoretical distinction between NGOs as service oriented entities and CSOs as forums for associational life and civic engagement.
- Full Text:
- Date Issued: 2013
An appraisal of support services to students with disabilities: the case of Walter Sisulu University
- Authors: Makiwane, Nonzwakazi Beauty
- Date: 2013
- Language: English
- Type: Thesis , Doctoral , PhD Admin
- Identifier: http://hdl.handle.net/10353/1220 , vital:26537
- Description: The provision of effective support services in an efficient manner is a critical part of any university’s role to ensure that students with disabilities achieve academic outcomes. In South Africa universities are categorized into three types, namely traditional universities (offer theoretically-oriented degrees); universities of technology (offer vocational-oriented diplomas and degrees) and comprehensive universities (offer a combination of the other two). With their constitutional and policy framework obligations, universities are responsible for accommodating students with all types of disabilities. Pertaining to the awareness of social disparities, the quality of support services to students with disabilities still remains a concern. From various platforms it is evident that quality of support services to students with disabilities in South African universities is poor and in some instances crucial support devices do not exist at all. The pressures being felt by universities from external forces and the problems encountered in the extent of quality of support services has created the need for an appraisal. The purpose of this study, then, is to investigate and describe the quality of the support services provided to students with disabilities in a university context.
- Full Text:
- Date Issued: 2013
An appraisal of support services to students with disabilities: the case of Walter Sisulu University
- Authors: Makiwane, Nonzwakazi Beauty
- Date: 2013
- Language: English
- Type: Thesis , Doctoral , PhD Admin
- Identifier: http://hdl.handle.net/10353/1220 , vital:26537
- Description: The provision of effective support services in an efficient manner is a critical part of any university’s role to ensure that students with disabilities achieve academic outcomes. In South Africa universities are categorized into three types, namely traditional universities (offer theoretically-oriented degrees); universities of technology (offer vocational-oriented diplomas and degrees) and comprehensive universities (offer a combination of the other two). With their constitutional and policy framework obligations, universities are responsible for accommodating students with all types of disabilities. Pertaining to the awareness of social disparities, the quality of support services to students with disabilities still remains a concern. From various platforms it is evident that quality of support services to students with disabilities in South African universities is poor and in some instances crucial support devices do not exist at all. The pressures being felt by universities from external forces and the problems encountered in the extent of quality of support services has created the need for an appraisal. The purpose of this study, then, is to investigate and describe the quality of the support services provided to students with disabilities in a university context.
- Full Text:
- Date Issued: 2013
An assessment of energy use as a rural development strategy: the case of Chiwundura communal area, Zimbabwe
- Authors: Mangizvo, Remigios Vurayayi
- Date: 2013
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:11444 , http://hdl.handle.net/10353/d1013595
- Description: Households in Chiwundura Communal Area continue to depend on traditional biomass fuels, that is, fuelwood, agricultural residues and in some cases dung. This is despite the fact that grid electrification has been introduced in the communal area. A few households have been able to adopt the grid electrification whilst the rest remain rooted in the use of the inefficient and polluting traditional biomass. Some of those who have adopted the grid electricity only use it for lighting and entertainment whilst they continue to use fuelwood for cooking. A number of households that have connected to grid electricity have reverted to the use of the traditional biomass. This means that the generality of people in Chiwundura Communal Area continue to be subjected to energy poverty, which is a constrained access to modern energy services such as electricity. As a result these households will not be able to meet the millennium development goals among many other achievements. This state of affairs motivated the researcher to conduct this study. The study wanted to find out why the transition from traditional biomass energy forms to modern energy services was slow in Chiwundura Communal Area. The study also wanted to establish the factors that influenced household en ergy choices as well as establish the ways in which the traditional biomass energy forms had affected the livelihoods of households in the study area. In order to get information on the above mentioned questions, this study which was a case study of Chiwundura Communal Area utilised the triangulation of both qualitative and quantitative techniques. These methods were meant to complement each other and benefit from the strengths of each method. The study used questionnaires, interviews, observations, transect walks, focus group discussions and content analysis. The researcher spent up to three months in the study area so as to get first hand information on the issues under study. A total of 215 households and 106 school children were conveniently sampled to respond to the questionnaires whilst fifty household heads participated in the interviews. The study looked at three energy theories namely the energy ladder, the leapfrogging and the multiple fuels use models as well as consumption and decision making theories to open this discussion. The study made a number of critical findings. Firstly, there was very little transition as most households remained as users of biomass energy; hence they were at the lower rungs of the energy ladder. Those that had moved up the ladder tended to back switch to the use of fuelwood. This made them multiple fuel users. Generally fuelwood was the dominant source of energy as it was used mainly for cooking, space and water heating, space lighting and other domestic needs such as smoking meat. About 22% of all respondents were connected to the grid and used electricity mainly for lighting. Candles, paraffin, gensets and solar energy were part of the energy mix. It was established that income was the most important determinant in the energy choices made by the different households. Most of the households were peasant farmers who could not harvest excess crops for the market. A few households with members in paid employment or obtained remittances from relatives in South Africa or the Diaspora were able to get connected to the grid or could afford to purchase fuelwood from vendors. Households could not procure solar house systems as the start up costs were beyond their reach. Those who were able to acquire generators could not run them for many hours as they could not afford to refuel them regularly. Household characteristics such as age and education of household- head were also important factors. It was however established that cultural and traditional factors were as usual not given the attention they deserved yet they were very significant in determining the type of fuel a household chose. Food preparation and taste always played an important role in determining whether a household chose traditional fuels for certain cuisines. It was also realised that failure by numerous households in the study area to access modern energy sources meant that they could not attain the millennium development goals by 2015. They could not move out of abject poverty as they lacked irrigation schemes to assure them of food security. Universal access to education was affected by lack of light to use for studying and reading after hours. Adult education was also frustrated. The boy child was worst affected as he came to school late or at times missed school altogether collecting fuelwood for the household. In Chiwundura Communal Area men and boys were responsible for collecting fuelwood. This signified a shift in gender roles. Men and boys took it upon themselves to have these responsibilities as women and girls could not walk the long distances. The health of the household particularly women and children who spent several hours close to the fire was compromised as most huts were poorly ventilated. They therefore could not adequately deal with indoor air pollution challenges. Other MDGs were also likely not to be achieved by the families. The study also found out that men were not dictatorial in determining the fuel that a household used. Some form of democracy existed within homes and negotiations between husband and wife often took place away from the public domain. Oftentimes women often aped their colleagues who owned modern energy technologies within the villages; hence they pressurised their husbands to buy them SHSs and gensets. This was conspicuous consumption. The study established that there was need for modern energy in the study area. Grid electricity was not the panacea for this as it was beyond the reach of many. It was therefore important to look at renewable energy forms such as gel fuel, SHSs and biogas. It was also pertinent to educate and make households aware of dangers posed by indoor air pollution. The government and different stakeholders must give it equal importance and publicity as that given to HIV and AIDS as it kills several children annually. Housing interventions should be made so that households build huts with proper ventilation.
- Full Text:
- Date Issued: 2013
- Authors: Mangizvo, Remigios Vurayayi
- Date: 2013
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:11444 , http://hdl.handle.net/10353/d1013595
- Description: Households in Chiwundura Communal Area continue to depend on traditional biomass fuels, that is, fuelwood, agricultural residues and in some cases dung. This is despite the fact that grid electrification has been introduced in the communal area. A few households have been able to adopt the grid electrification whilst the rest remain rooted in the use of the inefficient and polluting traditional biomass. Some of those who have adopted the grid electricity only use it for lighting and entertainment whilst they continue to use fuelwood for cooking. A number of households that have connected to grid electricity have reverted to the use of the traditional biomass. This means that the generality of people in Chiwundura Communal Area continue to be subjected to energy poverty, which is a constrained access to modern energy services such as electricity. As a result these households will not be able to meet the millennium development goals among many other achievements. This state of affairs motivated the researcher to conduct this study. The study wanted to find out why the transition from traditional biomass energy forms to modern energy services was slow in Chiwundura Communal Area. The study also wanted to establish the factors that influenced household en ergy choices as well as establish the ways in which the traditional biomass energy forms had affected the livelihoods of households in the study area. In order to get information on the above mentioned questions, this study which was a case study of Chiwundura Communal Area utilised the triangulation of both qualitative and quantitative techniques. These methods were meant to complement each other and benefit from the strengths of each method. The study used questionnaires, interviews, observations, transect walks, focus group discussions and content analysis. The researcher spent up to three months in the study area so as to get first hand information on the issues under study. A total of 215 households and 106 school children were conveniently sampled to respond to the questionnaires whilst fifty household heads participated in the interviews. The study looked at three energy theories namely the energy ladder, the leapfrogging and the multiple fuels use models as well as consumption and decision making theories to open this discussion. The study made a number of critical findings. Firstly, there was very little transition as most households remained as users of biomass energy; hence they were at the lower rungs of the energy ladder. Those that had moved up the ladder tended to back switch to the use of fuelwood. This made them multiple fuel users. Generally fuelwood was the dominant source of energy as it was used mainly for cooking, space and water heating, space lighting and other domestic needs such as smoking meat. About 22% of all respondents were connected to the grid and used electricity mainly for lighting. Candles, paraffin, gensets and solar energy were part of the energy mix. It was established that income was the most important determinant in the energy choices made by the different households. Most of the households were peasant farmers who could not harvest excess crops for the market. A few households with members in paid employment or obtained remittances from relatives in South Africa or the Diaspora were able to get connected to the grid or could afford to purchase fuelwood from vendors. Households could not procure solar house systems as the start up costs were beyond their reach. Those who were able to acquire generators could not run them for many hours as they could not afford to refuel them regularly. Household characteristics such as age and education of household- head were also important factors. It was however established that cultural and traditional factors were as usual not given the attention they deserved yet they were very significant in determining the type of fuel a household chose. Food preparation and taste always played an important role in determining whether a household chose traditional fuels for certain cuisines. It was also realised that failure by numerous households in the study area to access modern energy sources meant that they could not attain the millennium development goals by 2015. They could not move out of abject poverty as they lacked irrigation schemes to assure them of food security. Universal access to education was affected by lack of light to use for studying and reading after hours. Adult education was also frustrated. The boy child was worst affected as he came to school late or at times missed school altogether collecting fuelwood for the household. In Chiwundura Communal Area men and boys were responsible for collecting fuelwood. This signified a shift in gender roles. Men and boys took it upon themselves to have these responsibilities as women and girls could not walk the long distances. The health of the household particularly women and children who spent several hours close to the fire was compromised as most huts were poorly ventilated. They therefore could not adequately deal with indoor air pollution challenges. Other MDGs were also likely not to be achieved by the families. The study also found out that men were not dictatorial in determining the fuel that a household used. Some form of democracy existed within homes and negotiations between husband and wife often took place away from the public domain. Oftentimes women often aped their colleagues who owned modern energy technologies within the villages; hence they pressurised their husbands to buy them SHSs and gensets. This was conspicuous consumption. The study established that there was need for modern energy in the study area. Grid electricity was not the panacea for this as it was beyond the reach of many. It was therefore important to look at renewable energy forms such as gel fuel, SHSs and biogas. It was also pertinent to educate and make households aware of dangers posed by indoor air pollution. The government and different stakeholders must give it equal importance and publicity as that given to HIV and AIDS as it kills several children annually. Housing interventions should be made so that households build huts with proper ventilation.
- Full Text:
- Date Issued: 2013
An exploration of conditions enabling and constraining the infusion of service-learning into the curriculum at a South African research led university
- Authors: Hlengwa, Amanda Immaculate
- Date: 2013
- Subjects: Rhodes University -- Curricula -- Evaluation Service learning -- Research -- South Africa Education, Higher -- Curricula -- South Africa -- Evaluation Curriculum planning -- Research -- South Africa Experiential learning -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1888 , http://hdl.handle.net/10962/d1006036
- Description: Drawing on critical realist philosophy as a meta-theoretical framework, this study explores the conditions that enable and constrain the infusion of service-learning in university curricula. In this study, four discipline-based cases are analysed within the context of an overarching case of one South African university. The study reports on case study research into four disciplines, broadly representing the disciplinary array offered at Rhodes University, a small traditional research-intensive university in South Africa – four cases are thus embedded within a larger over-arching case. Margret Archer’s analytical dualism is used as an analytical lens for the inquiry. It offers tools for examining the conditions for the emergence of service learning and the form it takes in each case. Archer’s framework requires the artificial separation of structural, cultural and agential mechanisms for analytical purposes in order to establish the dominant factors impacting on the infusion of service-learning in curricula. An analysis of the interplay between structure, culture and agency uncovers insights into the conditions that enable or constrain the adoption of service learning as a pedagogic tool in specific disciplines. Curriculum decision-making is a central consideration in this study. Basil Bernstein’s theory of cultural transmission provides an external language of description to theorise the pedagogic choices made in specific contexts. This body of theory provides analytical tools for generating nuanced explanations of the significance of knowledge and curriculum structures as enabling and constraining mechanisms when pedagogic decisions are made. The study shows that the nature of the discipline has a significant influence on the emergence of service-learning and the form it takes in each context. Key agents draw on available structural and cultural mechanisms to either maintain the status quo or they exercise their personal properties and powers to mitigate existing conditions. The first case examines the emergence of service-learning in a ‘hard pure’ discipline where structural and cultural conditions constrain the emergence of innovative pedagogic tools. In this case a key agent draws on a confluence of personal, structural and cultural emergent properties to initiate a service-learning course at the honours level. Factors that make service-learning possible in this case include the key agent’s seniority within the institution, his status as a prolific researcher, the possibilities for application of disciplinary knowledge, and a strong institutional discourse of service to society (RU in Society) and an institutional and departmental discourse privileging academic freedom. In the second case the conditions in the ‘hard applied’ discipline are largely enabling, however the emergence of service-learning is facilitated by the interplay of the following agential, structural and cultural emergent properties: corporate agency taking advantage of the outward focus of the discipline (a region in Bernsteinian terms) and drawing on what is termed the RU in Society discourse. The third case represents a ‘soft pure’ discipline, where service-learning does not emerge within the formal curriculum, but in a largely marginalised departmental outreach programme. This discipline is inward facing and although its knowledge base draws on challenges and phenomena in society, it remains at an esoteric level accessible mainly to the discipline community. Agents in this department draw on the insular structure of the discipline, in conjunction with the strong Academic Freedom discourse to develop a form of service-learning that furthers disciplinary aims, albeit within the context of limited engagement beyond the boundaries of the discipline and the institution. In the case of the ‘soft applied’ discipline the structural and cultural conditions are largely enabling. However the emergence of service-learning in this discipline relies on the advocacy of a powerful social agent in the department with an interest in socially equitable practice; she draws on the RU in Society discourse to promote direct engagement with communities beyond the university boundaries. The study is set in a research-intensive university and it is perhaps not surprising that the service-learning courses in three of the four cases are framed by research projects. This suggests that in the context of this kind of institution it may be imperative to draw on research activities as the basis of infusing service-learning in the curriculum. The findings of this study challenge the implicit assumption in policy documents that it is possible to institute service-learning in all disciplines.
- Full Text:
- Date Issued: 2013
- Authors: Hlengwa, Amanda Immaculate
- Date: 2013
- Subjects: Rhodes University -- Curricula -- Evaluation Service learning -- Research -- South Africa Education, Higher -- Curricula -- South Africa -- Evaluation Curriculum planning -- Research -- South Africa Experiential learning -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1888 , http://hdl.handle.net/10962/d1006036
- Description: Drawing on critical realist philosophy as a meta-theoretical framework, this study explores the conditions that enable and constrain the infusion of service-learning in university curricula. In this study, four discipline-based cases are analysed within the context of an overarching case of one South African university. The study reports on case study research into four disciplines, broadly representing the disciplinary array offered at Rhodes University, a small traditional research-intensive university in South Africa – four cases are thus embedded within a larger over-arching case. Margret Archer’s analytical dualism is used as an analytical lens for the inquiry. It offers tools for examining the conditions for the emergence of service learning and the form it takes in each case. Archer’s framework requires the artificial separation of structural, cultural and agential mechanisms for analytical purposes in order to establish the dominant factors impacting on the infusion of service-learning in curricula. An analysis of the interplay between structure, culture and agency uncovers insights into the conditions that enable or constrain the adoption of service learning as a pedagogic tool in specific disciplines. Curriculum decision-making is a central consideration in this study. Basil Bernstein’s theory of cultural transmission provides an external language of description to theorise the pedagogic choices made in specific contexts. This body of theory provides analytical tools for generating nuanced explanations of the significance of knowledge and curriculum structures as enabling and constraining mechanisms when pedagogic decisions are made. The study shows that the nature of the discipline has a significant influence on the emergence of service-learning and the form it takes in each context. Key agents draw on available structural and cultural mechanisms to either maintain the status quo or they exercise their personal properties and powers to mitigate existing conditions. The first case examines the emergence of service-learning in a ‘hard pure’ discipline where structural and cultural conditions constrain the emergence of innovative pedagogic tools. In this case a key agent draws on a confluence of personal, structural and cultural emergent properties to initiate a service-learning course at the honours level. Factors that make service-learning possible in this case include the key agent’s seniority within the institution, his status as a prolific researcher, the possibilities for application of disciplinary knowledge, and a strong institutional discourse of service to society (RU in Society) and an institutional and departmental discourse privileging academic freedom. In the second case the conditions in the ‘hard applied’ discipline are largely enabling, however the emergence of service-learning is facilitated by the interplay of the following agential, structural and cultural emergent properties: corporate agency taking advantage of the outward focus of the discipline (a region in Bernsteinian terms) and drawing on what is termed the RU in Society discourse. The third case represents a ‘soft pure’ discipline, where service-learning does not emerge within the formal curriculum, but in a largely marginalised departmental outreach programme. This discipline is inward facing and although its knowledge base draws on challenges and phenomena in society, it remains at an esoteric level accessible mainly to the discipline community. Agents in this department draw on the insular structure of the discipline, in conjunction with the strong Academic Freedom discourse to develop a form of service-learning that furthers disciplinary aims, albeit within the context of limited engagement beyond the boundaries of the discipline and the institution. In the case of the ‘soft applied’ discipline the structural and cultural conditions are largely enabling. However the emergence of service-learning in this discipline relies on the advocacy of a powerful social agent in the department with an interest in socially equitable practice; she draws on the RU in Society discourse to promote direct engagement with communities beyond the university boundaries. The study is set in a research-intensive university and it is perhaps not surprising that the service-learning courses in three of the four cases are framed by research projects. This suggests that in the context of this kind of institution it may be imperative to draw on research activities as the basis of infusing service-learning in the curriculum. The findings of this study challenge the implicit assumption in policy documents that it is possible to institute service-learning in all disciplines.
- Full Text:
- Date Issued: 2013
An improved mentoring model for student teachers on practicum in primary schools in Zimbabwe
- Authors: Jeko, Ishmael
- Date: 2013
- Subjects: Student teachers -- Zimbabwe , Student teaching -- Zimbabwe , Early childhood education -- Curricula , Teachers -- Training of -- Zimbabwe , Mentoring in education -- Zimbabwe , Lesson planning
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:9571 , http://hdl.handle.net/10948/d1017553
- Description: As part of a drive to improve the quality of teachers, Zimbabwe introduced a school-based mentoring model in 1995, a move which regrettably seems not have borne fruit. Therefore, this study sought to propose an improved mentoring model for initial teacher training for primary school teachers. Efforts to improve the current mentoring could, however, be facilitated if they were informed by an empirically-based understanding of the shortcomings of the existing mentoring system for student teachers and teachers. In order to attain the above objective, this study adopted a multisite case study design, guided by the interpretive paradigm. A core of nine primary schools, drawn from the rural, urban and peri-urban areas of the Masvingo Province in Zimbabwe, was purposively selected to participate in the study. In the participating schools, key participants were student teachers and mentors, while school principals participated when they had time. A secondary group of primary schools were also identified to be used as validation of findings in a wider setting. An in-depth literature study on teacher education and mentoring was also carried out and this, combined with empirical data, illuminated the issues being investigated. The empirical data were primarily gathered through focus group and face-to-face individual semi-structured interviews, while participant observation (used in conjunction with informal unstructured interviews) and questionnaires were used to verify and triangulate data collected through the interviews. To safeguard the ethical integrity of the study, ethical approval from the relevant university committee, as well as the official consent of educational authorities, was obtained beforehand, as was the informed consent of individual participants. The research established that the support rendered to student teachers in the participating primary schools was largely inadequate and of a shallow mode, focusing primarily on facilitating the mastery of technical skills and the provision of psycho-social support, while being sorely deficient in empowering the student teachers with the skills and attitudes to reflectively and critically engage with their own and others‟ teaching practices. The mentoring was taking place in the context of field experience, organised along the apprenticeship model, hence located in an outmoded traditional paradigm of field experience, something which is regrettable at a time when international best practices seek to move towards a reflective-inquiry-oriented paradigm. Secondly, the research found that the participating schools were not structurally or culturally ready to take significant teacher training responsibility; hence the schools, in their present state, could be seen as constraining the smooth functioning of the mentoring model. Thirdly, some mentor-based factors also seemed to inhibit the functioning of the mentoring model. These included teachers who were attitudinally indisposed to accept student teachers as their professional colleagues, preferring to relate to them hierarchically and vertically, thereby limiting the emergence of a culture of professional collaboration and reciprocal learning relationships. In similar vein, the mentors‟ lack of training limited their capacity of mentors to perform the extended range of mentoring functions necessary for supporting student teachers trained in 21st century schools. The above conclusions and implications point towards the following recommendations: Mentor support for student teachers should be extended from the present superficial level to include functions that are oriented towards reflective practice. However, for this to happen, some adjustments will need to be made in the schools. These include, most importantly, making time available for mentoring activities. In order for the mentors to be able to perform their mentoring functions knowledgeably, they must be made fully aware of what they are supposed to do by providing them with the official documents spelling out mentoring expectations in schools. Additionally, the commitment of mentors to their duties could be made more sustainable by putting in place a clearly defined reward structure that is fully recognized officially and integrated into the employee grading system. To make school environments more propitious towards mentoring, schools must be structurally modified and re-cultured to create slots for mentoring activities, provide opportunities for informal professional interaction among teachers, as well as establish professional engagement forums, such as school-based learning circles. The research also suggests that student teachers should be allowed to choose their mentors through providing them with opportunities for early contact with their prospective mentoring partners. In an attempt to close the gap between college-based modules and field-based school experiences, the research further recommends that college-based modules be delivered in a way that ensures that they are fully integrated with student teachers‟ field experiences. Finally, mentoring could be better facilitated if schools and colleges adopted a partnership arrangement that is more aligned to mentoring. This implies provisionally shifting from the present separatist to the HEI-led partnership model, while preparing for the adoption of a fully-fledged collaborative partnership in the long term. The research was, however, by no means carried out perfectly. It was somewhat limited by its failure to take into account the view of officials from the Department of Education, as well as the input of colleagues in teacher education. In similar vein, the researcher felt that a more nuanced and fine-grained picture of the participants‟ mentoring experiences could have emerged if he had spent more time in the field, something which limited resources and work commitments did not allow him to do. Some significant issues arose from this study, but which it could not pursue. These include exploring the possibility of coming up with a model of teacher education that integrates ITE and CTPD in the context of mentoring, as well as conducting a similarly designed research into the mentoring that is taking place in secondary schools.
- Full Text:
- Date Issued: 2013
- Authors: Jeko, Ishmael
- Date: 2013
- Subjects: Student teachers -- Zimbabwe , Student teaching -- Zimbabwe , Early childhood education -- Curricula , Teachers -- Training of -- Zimbabwe , Mentoring in education -- Zimbabwe , Lesson planning
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:9571 , http://hdl.handle.net/10948/d1017553
- Description: As part of a drive to improve the quality of teachers, Zimbabwe introduced a school-based mentoring model in 1995, a move which regrettably seems not have borne fruit. Therefore, this study sought to propose an improved mentoring model for initial teacher training for primary school teachers. Efforts to improve the current mentoring could, however, be facilitated if they were informed by an empirically-based understanding of the shortcomings of the existing mentoring system for student teachers and teachers. In order to attain the above objective, this study adopted a multisite case study design, guided by the interpretive paradigm. A core of nine primary schools, drawn from the rural, urban and peri-urban areas of the Masvingo Province in Zimbabwe, was purposively selected to participate in the study. In the participating schools, key participants were student teachers and mentors, while school principals participated when they had time. A secondary group of primary schools were also identified to be used as validation of findings in a wider setting. An in-depth literature study on teacher education and mentoring was also carried out and this, combined with empirical data, illuminated the issues being investigated. The empirical data were primarily gathered through focus group and face-to-face individual semi-structured interviews, while participant observation (used in conjunction with informal unstructured interviews) and questionnaires were used to verify and triangulate data collected through the interviews. To safeguard the ethical integrity of the study, ethical approval from the relevant university committee, as well as the official consent of educational authorities, was obtained beforehand, as was the informed consent of individual participants. The research established that the support rendered to student teachers in the participating primary schools was largely inadequate and of a shallow mode, focusing primarily on facilitating the mastery of technical skills and the provision of psycho-social support, while being sorely deficient in empowering the student teachers with the skills and attitudes to reflectively and critically engage with their own and others‟ teaching practices. The mentoring was taking place in the context of field experience, organised along the apprenticeship model, hence located in an outmoded traditional paradigm of field experience, something which is regrettable at a time when international best practices seek to move towards a reflective-inquiry-oriented paradigm. Secondly, the research found that the participating schools were not structurally or culturally ready to take significant teacher training responsibility; hence the schools, in their present state, could be seen as constraining the smooth functioning of the mentoring model. Thirdly, some mentor-based factors also seemed to inhibit the functioning of the mentoring model. These included teachers who were attitudinally indisposed to accept student teachers as their professional colleagues, preferring to relate to them hierarchically and vertically, thereby limiting the emergence of a culture of professional collaboration and reciprocal learning relationships. In similar vein, the mentors‟ lack of training limited their capacity of mentors to perform the extended range of mentoring functions necessary for supporting student teachers trained in 21st century schools. The above conclusions and implications point towards the following recommendations: Mentor support for student teachers should be extended from the present superficial level to include functions that are oriented towards reflective practice. However, for this to happen, some adjustments will need to be made in the schools. These include, most importantly, making time available for mentoring activities. In order for the mentors to be able to perform their mentoring functions knowledgeably, they must be made fully aware of what they are supposed to do by providing them with the official documents spelling out mentoring expectations in schools. Additionally, the commitment of mentors to their duties could be made more sustainable by putting in place a clearly defined reward structure that is fully recognized officially and integrated into the employee grading system. To make school environments more propitious towards mentoring, schools must be structurally modified and re-cultured to create slots for mentoring activities, provide opportunities for informal professional interaction among teachers, as well as establish professional engagement forums, such as school-based learning circles. The research also suggests that student teachers should be allowed to choose their mentors through providing them with opportunities for early contact with their prospective mentoring partners. In an attempt to close the gap between college-based modules and field-based school experiences, the research further recommends that college-based modules be delivered in a way that ensures that they are fully integrated with student teachers‟ field experiences. Finally, mentoring could be better facilitated if schools and colleges adopted a partnership arrangement that is more aligned to mentoring. This implies provisionally shifting from the present separatist to the HEI-led partnership model, while preparing for the adoption of a fully-fledged collaborative partnership in the long term. The research was, however, by no means carried out perfectly. It was somewhat limited by its failure to take into account the view of officials from the Department of Education, as well as the input of colleagues in teacher education. In similar vein, the researcher felt that a more nuanced and fine-grained picture of the participants‟ mentoring experiences could have emerged if he had spent more time in the field, something which limited resources and work commitments did not allow him to do. Some significant issues arose from this study, but which it could not pursue. These include exploring the possibility of coming up with a model of teacher education that integrates ITE and CTPD in the context of mentoring, as well as conducting a similarly designed research into the mentoring that is taking place in secondary schools.
- Full Text:
- Date Issued: 2013
An intervention study to develop a male circumcision health promotion programme at Libode Rural Communities in the Eastern Cape Province, South Africa
- Authors: Douglas, Mbuyiselo
- Date: 2013
- Subjects: Circumcision Health promotion Penis surgery South Africa -- Libode
- Language: English
- Type: Thesis , Doctoral , Ph D
- Identifier: vital:18476 , http://hdl.handle.net/11260/d1007187
- Description: The purpose of this study was to develop an intervention health promotion programme to prevent circumcision related health problem such as sepsis, botched circumcision, dehydration, penile amputation and reduce the number of deaths. The intervention programme was aimed at promoting a safe male circumcision practice affecting boys aged 12-18 years at Libode rural communities in Eastern Cape Province of South Africa. This was achieved through a mixed method design using both quantitative and qualitative approaches utilizing sequential transformative strategy to allow for the convergence of multiple perspectives of the traditional male circumcision in Libode. The study was conducted in 22 schools of the rural communities of Libode because most of the participants are still attending school. Frequencies and percentages were used to analyse the quantitative data, utilizing the Statistical Package for Social Sciences (SPSS). A total of 1036 participants, AmaXhosa circumcised young men (abafana) and uncircumcised boys (amakhwenkwe) participated in the cross-sectional survey, quantitative phase of the study. Qualitative phase of this study was composed of 7 focus group discussions with a total of 84 circumcised and uncircumcised male participants and 10 key informants’ interviews were conducted. In analysis qualitative data, the researcher found the most descriptive words for each topic and turned them into categories or sub-themes. Topics that related to each other were then grouped in order to reduce the number of categories and to create themes. The similar categories of data were grouped and analysed using Tesch’s method. Findings indicated that traditional circumcision is performed during winter and summer holidays in order to cater for the boys who are attending schools. The circumcision age at Libode ranges from 12 and 18 years of age which is against the Health Standards in Traditional Circumcision Act (Act No. 6 of 2001). Although the participants were aware of the complications of male circumcision in Libode, there was a high preference for traditional circumcision (92.3% of participants) to hospital circumcision. The participants were of the view that the benefits of traditional circumcision outweigh the complications or challenges related to traditional circumcision. They wanted to be socially accepted and wanted to learn about manhood values in the traditional circumcision which are values that cannot be achieved through the hospital based circumcision. As male circumcision initiation is seasonal and the intervention programme needed to be approved by different stakeholders, the testing of intervention programme could not happen before the programme was approved by all the stakeholders.
- Full Text:
- Date Issued: 2013
- Authors: Douglas, Mbuyiselo
- Date: 2013
- Subjects: Circumcision Health promotion Penis surgery South Africa -- Libode
- Language: English
- Type: Thesis , Doctoral , Ph D
- Identifier: vital:18476 , http://hdl.handle.net/11260/d1007187
- Description: The purpose of this study was to develop an intervention health promotion programme to prevent circumcision related health problem such as sepsis, botched circumcision, dehydration, penile amputation and reduce the number of deaths. The intervention programme was aimed at promoting a safe male circumcision practice affecting boys aged 12-18 years at Libode rural communities in Eastern Cape Province of South Africa. This was achieved through a mixed method design using both quantitative and qualitative approaches utilizing sequential transformative strategy to allow for the convergence of multiple perspectives of the traditional male circumcision in Libode. The study was conducted in 22 schools of the rural communities of Libode because most of the participants are still attending school. Frequencies and percentages were used to analyse the quantitative data, utilizing the Statistical Package for Social Sciences (SPSS). A total of 1036 participants, AmaXhosa circumcised young men (abafana) and uncircumcised boys (amakhwenkwe) participated in the cross-sectional survey, quantitative phase of the study. Qualitative phase of this study was composed of 7 focus group discussions with a total of 84 circumcised and uncircumcised male participants and 10 key informants’ interviews were conducted. In analysis qualitative data, the researcher found the most descriptive words for each topic and turned them into categories or sub-themes. Topics that related to each other were then grouped in order to reduce the number of categories and to create themes. The similar categories of data were grouped and analysed using Tesch’s method. Findings indicated that traditional circumcision is performed during winter and summer holidays in order to cater for the boys who are attending schools. The circumcision age at Libode ranges from 12 and 18 years of age which is against the Health Standards in Traditional Circumcision Act (Act No. 6 of 2001). Although the participants were aware of the complications of male circumcision in Libode, there was a high preference for traditional circumcision (92.3% of participants) to hospital circumcision. The participants were of the view that the benefits of traditional circumcision outweigh the complications or challenges related to traditional circumcision. They wanted to be socially accepted and wanted to learn about manhood values in the traditional circumcision which are values that cannot be achieved through the hospital based circumcision. As male circumcision initiation is seasonal and the intervention programme needed to be approved by different stakeholders, the testing of intervention programme could not happen before the programme was approved by all the stakeholders.
- Full Text:
- Date Issued: 2013
An investigation into how journalists experience economic and political pressures on their ethical decisions at the Nation Media Group in Kenya
- Authors: Maweu, Jacinta Mwende
- Date: 2013
- Subjects: Nation Media Group Limited Journalists -- Kenya Journalistic ethics -- Kenya Press and politics -- Kenya Journalism -- Economic aspects -- Kenya Journalism -- Political aspects -- Kenya Mass media -- Political aspects -- Kenya Mass media -- Economic aspects -- Kenya Freedom of the press -- Kenya
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3508 , http://hdl.handle.net/10962/d1007583
- Description: This study investigates how journalists experience economic and political pressures on their ethical decisions at the Nation Media Group (NMG) conglomerate in Kenya. The study uses qualitative semi- structured interviews to examine how journalists experience these pressures on their professional ethics as they make their daily decisions. Grounded in the critical political economy of the media tradition, the findings of the study indicate that economic and political pressures from advertisers, shareholders’ interests, the profit motive and the highly ethnicised political environment in Kenya largely compromise the ethical decisions of journalists. The study draws on the work done by Herman and Chomsky in their ‘Propaganda Model’ in which they propose ‘filters’ as the analytical indicators of the forms that political and economic pressures that journalists experience may take. The study explores the ways in which journalists experience these pressures, how they respond to the pressures and the ways in which their responses may compromise their journalism ethics. The findings indicate that aside from the pressures from the primary five filters outlined in the Propaganda Model, ethnicity in Kenyan newsrooms is a key ‘filter’ that may compromise the ethical decisions of journalists at the NMG. The study therefore argues that there is a need to modify the explanatory power of the Propaganda Model when applying it to the Kenyan context to include ethnicity as a ‘sixth filter’ that should be understood in relation to the five primary filters. From the findings, it would seem that the government is no longer a major threat to journalists’ freedom and responsibility in Kenya. Market forces and ethnicity in newsrooms pose the greatest threat to journalists’ freedom and responsibility. The study therefore calls for a revision of the normative framework within which journalists’ and media performance in Kenya is assessed. As the study findings show, the prevailing liberal- democratic model ignores the commercial and economic threats the ‘free market’ poses to journalism ethics as well as ethnicity in newsrooms and only focuses on the media- government relations, treating the government as the major threat to media freedom.
- Full Text:
- Date Issued: 2013
- Authors: Maweu, Jacinta Mwende
- Date: 2013
- Subjects: Nation Media Group Limited Journalists -- Kenya Journalistic ethics -- Kenya Press and politics -- Kenya Journalism -- Economic aspects -- Kenya Journalism -- Political aspects -- Kenya Mass media -- Political aspects -- Kenya Mass media -- Economic aspects -- Kenya Freedom of the press -- Kenya
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3508 , http://hdl.handle.net/10962/d1007583
- Description: This study investigates how journalists experience economic and political pressures on their ethical decisions at the Nation Media Group (NMG) conglomerate in Kenya. The study uses qualitative semi- structured interviews to examine how journalists experience these pressures on their professional ethics as they make their daily decisions. Grounded in the critical political economy of the media tradition, the findings of the study indicate that economic and political pressures from advertisers, shareholders’ interests, the profit motive and the highly ethnicised political environment in Kenya largely compromise the ethical decisions of journalists. The study draws on the work done by Herman and Chomsky in their ‘Propaganda Model’ in which they propose ‘filters’ as the analytical indicators of the forms that political and economic pressures that journalists experience may take. The study explores the ways in which journalists experience these pressures, how they respond to the pressures and the ways in which their responses may compromise their journalism ethics. The findings indicate that aside from the pressures from the primary five filters outlined in the Propaganda Model, ethnicity in Kenyan newsrooms is a key ‘filter’ that may compromise the ethical decisions of journalists at the NMG. The study therefore argues that there is a need to modify the explanatory power of the Propaganda Model when applying it to the Kenyan context to include ethnicity as a ‘sixth filter’ that should be understood in relation to the five primary filters. From the findings, it would seem that the government is no longer a major threat to journalists’ freedom and responsibility in Kenya. Market forces and ethnicity in newsrooms pose the greatest threat to journalists’ freedom and responsibility. The study therefore calls for a revision of the normative framework within which journalists’ and media performance in Kenya is assessed. As the study findings show, the prevailing liberal- democratic model ignores the commercial and economic threats the ‘free market’ poses to journalism ethics as well as ethnicity in newsrooms and only focuses on the media- government relations, treating the government as the major threat to media freedom.
- Full Text:
- Date Issued: 2013
An investigation into the representations of environmental issues relating to Lake Victoria, Uganda, and their negotiation by the lakeside communities
- Lwanga, Margaret Jjuuko Nassuna
- Authors: Lwanga, Margaret Jjuuko Nassuna
- Date: 2013
- Subjects: Victoria Voice Victoria, Lake -- Environmental aspects -- Research Lakes -- Environmental aspects -- Research -- Uganda Environmental management -- Research -- Uganda Pollution -- Environmental aspects -- Uganda Radio broadcasting -- Uganda , Uganda CBS , Central Broadcasting Service , Mass media -- Environmental aspects -- Research -- Uganda
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3411 , http://hdl.handle.net/10962/d1001577
- Description: The state of the environment is increasingly present as an urgent concern for contemporary political, social, cultural and physical life. Yet the roles of the mass media (radio, television and newspapers) in shaping and influencing crucial public awareness, debates and environmental decision-making remain inadequately understood. Positioned as a critical studies inquiry into media representations and audience reception, this study forms part of a wider project amongst media scholars and culture critics on the relationship between media textual production and consumption. It explores how one radio station in Uganda, Central Broadcasting Service (CBS) radio, represents and constructs the environmental crises faced by Lake Victoria, especially pollution and overfishing. The focus is on the Victoria Voice radio documentaries aired on CBS radio in the year 2005. The study further explores how three lakeside communities negotiate these issues as radio broadcasts. It recognises that while the mass media contribute significantly to creating public awareness about such social concerns, their likelihood of having a direct and predictable impact on social behaviour is slight. The context and the lived experiences at the reception stage where the decisions are made on whether to adopt an innovation are ultimately the factors which impact on how they are negotiated. The thesis is informed by the theoretical and analytical framework of Cultural Studies as well as the Participatory Approach to Communication for Development perspectives. The study is specifically informed by the theories of ‘discourse’ (Foucault, 1980a, 1981) and the ‘circuit of culture’ (du Gay et al., 1997 and Johnson, 1987) and these provided the conceptual framework for investigating the representations, the production and the consumption of media texts. Predominantly qualitative methods have been employed in data collection and analysis. In the first place, a Critical Discourse Analysis (CDA) (Fairclough, 1995a, 1995c) of the radio texts has interrogated the discourses and discursive practices of CBS’ Victoria Voice environmental radio programmes in order to consider its representations of particular issues and consequently the discourses it privileged. Qualitative methods of participant observation, in-depth interviews and focus group discussions were deployed to investigate the negotiation of the texts by the lakeside communities. This research establishes that the Victoria Voice radio texts foreground three contesting types of discourses: the discourse of basic economic survival and livelihoods is articulated largely by the ordinary people, the lakeside communities; the discourse of sustainable development, particularly the protection and sustainability of Lake Victoria, by scientists and environmental experts; and the discourse of modernisation and corporate investment by politicians and/or policy makers and industrialists. The texts, to a large degree, reaffirm the hegemonic relations of power in Ugandan society, and thus contribute to the maintenance of the status quo. The selection of an elite category of informers (scientists, experts, politicians, policy makers) serves to marginalise the less powerful ordinary people (the fisher folk, farmers and other eyewitnesses). The construction of the elite as active and speaking subjects within the various debates introduced in these programmes, for example, works both to obscure and endorse the unequal power relations. At the reception side, while the lakeside communities attest to the relevance of the programmes in providing information on the issues concerning Lake Victoria and other aspects of their livelihood, they also recognise the power relations that underpin the sets of representations. Amongst these sets is government’s complicity with industry, in line with their economic policies and the global capitalist economy, while espousing the rhetoric of nature conservation. The study argues that sustainable solutions for the crises on Lake Victoria should take into account the socio-historical and cultural contexts of the lakeside communities. For the Ugandan media, particularly radio, there is a need to rethink the nature of the coverage, which tends to neglect the contextual factors, such as local socio-economic and cultural factors within which environmental issues and problems occur and which, as this thesis establishes, greatly influences the way people make sense of environmental issues and problems. I posit that the Participatory Approach that seeks to address the communities’ most pressing concerns should be adopted – to include more of the communities’ voices and involve them in the production of radio programmes.
- Full Text:
- Date Issued: 2013
- Authors: Lwanga, Margaret Jjuuko Nassuna
- Date: 2013
- Subjects: Victoria Voice Victoria, Lake -- Environmental aspects -- Research Lakes -- Environmental aspects -- Research -- Uganda Environmental management -- Research -- Uganda Pollution -- Environmental aspects -- Uganda Radio broadcasting -- Uganda , Uganda CBS , Central Broadcasting Service , Mass media -- Environmental aspects -- Research -- Uganda
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3411 , http://hdl.handle.net/10962/d1001577
- Description: The state of the environment is increasingly present as an urgent concern for contemporary political, social, cultural and physical life. Yet the roles of the mass media (radio, television and newspapers) in shaping and influencing crucial public awareness, debates and environmental decision-making remain inadequately understood. Positioned as a critical studies inquiry into media representations and audience reception, this study forms part of a wider project amongst media scholars and culture critics on the relationship between media textual production and consumption. It explores how one radio station in Uganda, Central Broadcasting Service (CBS) radio, represents and constructs the environmental crises faced by Lake Victoria, especially pollution and overfishing. The focus is on the Victoria Voice radio documentaries aired on CBS radio in the year 2005. The study further explores how three lakeside communities negotiate these issues as radio broadcasts. It recognises that while the mass media contribute significantly to creating public awareness about such social concerns, their likelihood of having a direct and predictable impact on social behaviour is slight. The context and the lived experiences at the reception stage where the decisions are made on whether to adopt an innovation are ultimately the factors which impact on how they are negotiated. The thesis is informed by the theoretical and analytical framework of Cultural Studies as well as the Participatory Approach to Communication for Development perspectives. The study is specifically informed by the theories of ‘discourse’ (Foucault, 1980a, 1981) and the ‘circuit of culture’ (du Gay et al., 1997 and Johnson, 1987) and these provided the conceptual framework for investigating the representations, the production and the consumption of media texts. Predominantly qualitative methods have been employed in data collection and analysis. In the first place, a Critical Discourse Analysis (CDA) (Fairclough, 1995a, 1995c) of the radio texts has interrogated the discourses and discursive practices of CBS’ Victoria Voice environmental radio programmes in order to consider its representations of particular issues and consequently the discourses it privileged. Qualitative methods of participant observation, in-depth interviews and focus group discussions were deployed to investigate the negotiation of the texts by the lakeside communities. This research establishes that the Victoria Voice radio texts foreground three contesting types of discourses: the discourse of basic economic survival and livelihoods is articulated largely by the ordinary people, the lakeside communities; the discourse of sustainable development, particularly the protection and sustainability of Lake Victoria, by scientists and environmental experts; and the discourse of modernisation and corporate investment by politicians and/or policy makers and industrialists. The texts, to a large degree, reaffirm the hegemonic relations of power in Ugandan society, and thus contribute to the maintenance of the status quo. The selection of an elite category of informers (scientists, experts, politicians, policy makers) serves to marginalise the less powerful ordinary people (the fisher folk, farmers and other eyewitnesses). The construction of the elite as active and speaking subjects within the various debates introduced in these programmes, for example, works both to obscure and endorse the unequal power relations. At the reception side, while the lakeside communities attest to the relevance of the programmes in providing information on the issues concerning Lake Victoria and other aspects of their livelihood, they also recognise the power relations that underpin the sets of representations. Amongst these sets is government’s complicity with industry, in line with their economic policies and the global capitalist economy, while espousing the rhetoric of nature conservation. The study argues that sustainable solutions for the crises on Lake Victoria should take into account the socio-historical and cultural contexts of the lakeside communities. For the Ugandan media, particularly radio, there is a need to rethink the nature of the coverage, which tends to neglect the contextual factors, such as local socio-economic and cultural factors within which environmental issues and problems occur and which, as this thesis establishes, greatly influences the way people make sense of environmental issues and problems. I posit that the Participatory Approach that seeks to address the communities’ most pressing concerns should be adopted – to include more of the communities’ voices and involve them in the production of radio programmes.
- Full Text:
- Date Issued: 2013
An investigation of skills, knowledge and farmer support programmes of land reform beneficiaries :a case study of Forest Hill farmers in Kenton-on-Sea in the Ndlambe Local Municipality
- Authors: Tshuma, Mengezi Chancellor
- Date: 2013
- Subjects: Land reforms -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Farms, Small -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD (Agricultural Economics)
- Identifier: vital:11205 , http://hdl.handle.net/10353/d1013109 , Land reforms -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Farms, Small -- South Africa -- Eastern Cape
- Description: black owners by white colonialists. Even though whites made up less than 20% of the nation‟s population, they took more than 80% of the agriculturally productive land and drove the original owners to the unproductive reserves where they were cramped and could not practice agriculture at all. Various acts such as the Black Land Act of 1913, Development Trust Act of 1936 and the Native Laws Amendment Act of 1937 were introduced which further frustrated the displaced black population thereby plunging it deeper and deeper into poverty. The main objective behind the introduction of these acts was to restrain the black population from earning livelihoods through agriculture thus forcing them to offer their labour to white farmers for low wages just to earn some form of livelihood. Such unfair practices and distribution of land prompted the first democratically elected government of South Africa to embark on a drive to redistribute the nation‟s land equitably amongst its citizens to foster national reconciliation, stimulate economic growth and compensate those that were forced out or lost their land during the apartheid era. This initiative was called the Land Reform Programme (LRP) and was implemented with three prongs namely (i) land redistribution; (ii) restitution; and (iii) land tenure. Among the beneficiaries of the LRP were farmers from a community called Marselle in Kenton-on-sea. In addition to getting land for farming purposes, the Marselle farmers also obtained financial support from the government‟s Land Bank to help them kick-start their farming activities. However, in spite of such interventions, they have struggled to turn their activities into sustainable livelihood sources. One most likely cause for this is the lack of farming knowledge and skills needed to make them more efficient and productive. This study was thus geared towards evaluating the knowledge and skills gap in Marselle which, when addressed, could make the Marselle farmers more productive. Its focus was limited to the 32 livestock and 8 chicory farmers that are recognized members of their respective projects. Focus was limited only to these farmers since the next phase of this study will involve building their capacity based on the skills gaps identified through this study. The findings showed that the two projects benefited at least 130 individuals belonging to the farming households, with 67.5% of these households headed by males. The age of these farmers was equally shared at 40% each between those above 65 years and those that only went as far as fourth grade. No one went to tertiary at all. At least 75% of the investigated farmers were unemployed and 42% of this population was pensioners. In terms of income though, 64.98% of it was from external sources. The Masakhane Silime (Chicory) project was implemented to generate income and provide job opportunities for the locals but neither of these objectives had been met at the time the data for this study was collected due to various challenges like lack of funds and infrastructure to enhance productivity. Just like the chicory project, the livestock project had its own objectives, namely; to remove animals from the residential areas, provide the animals with a safe place, reduce road accidents and also to provide a livelihood source for local farmers. Due to overgrazing the pastures, lack of proper camps and other challenges, some effort still needs to be put to achieve these objectives. Even though the livestock project was formed with these objectives in mind, the farmers themselves reared livestock either for personal consumption, selling, ritual purposes, store of wealth or all these combined. Regarding technical skills, livestock farmers were found to rely mostly on indigenous knowledge sources to attain farming knowledge. Only animal healthcare knowledge was popular to more than half the respondents. This was said to be due to the focus group meetings held on the farm every other Wednesday to share information with local extension officers. In spite of these information sharing events, livestock farmers identified training on how to feed; market; handle; and treat their livestock as key intervention knowledge areas. Attendance to these focus group meetings was limited to livestock farmers only. Various socio-economic factors were also found to have some form of influence on the acquisition of livestock knowledge. Education was the most dominant factor, with a significant association with the farmers‟ feeding (p=0.033); animal healthcare (P=0.038); marketing (p=0.009); veld management (p=0.036); and cattle slaughtering (p=0.027) knowledge. Other variables most influential include the gender and age of the household head. The former was significant at 95% confidence level for farmers‟ feeding knowledge (p=0.021); animal healthcare (p=0.039); marketing (p=0.043); livestock housing and handling (p=0.023); veld management (p=0.018); and cattle slaughtering (p=0.043). The dominance of males in acquiring these skills could be explained by the fact that the majority of the livestock project members were males. The majority of the few female members became members by default after the passing on of their husbands but their participation in the project was done through other project members who looked after their animals on their behalf. The number of farming years also had some positive and significant influence on other knowledge areas such as feeding (p=0.021) and livestock housing and handling (p=0.013). The logic supporting this association is that farmers tend to accumulate new and more skills the longer they stay in the same enterprise. In addition, most of the interviewed farmers were farm labourers prior to relocating to Marselle hence they acquired the necessary knowledge long before the project started. Concerning the chicory project, its members also relied heavily on indigenous knowledge sources for farming knowledge. Soil preparation (24.1%); planting (20.7%); land care (24.1%); and mechanical weed control (48.3%) were the knowledge areas lacked by more than half the respondents. The farmers identified land preparation (75%); communication skills (25%); marketing (100%); financial management (62%); and harvesting (88%) as the key crucial intervention areas they needed prioritized. As a study meant to inform the capacity building phase of the Land Bank project, this study identified the existing skills gaps in the two projects implemented in Forest Hill. When implementing the Capacity Building (CB) phase, various socio-economic factors will have to be considered. For example, the proposed intervention should not discriminate against anyone on the grounds of gender or physical abilities. The skills introduced should also be simple enough to be accepted and acquired even by the illiterate, especially when one considers the high illiteracy levels amongst the respondents. Efforts should also be made to create partnerships with the right organizations or groups of people so that they provide the required expertise and resources for the benefit of the farmers as and when required.
- Full Text:
- Date Issued: 2013
- Authors: Tshuma, Mengezi Chancellor
- Date: 2013
- Subjects: Land reforms -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Farms, Small -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD (Agricultural Economics)
- Identifier: vital:11205 , http://hdl.handle.net/10353/d1013109 , Land reforms -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Farms, Small -- South Africa -- Eastern Cape
- Description: black owners by white colonialists. Even though whites made up less than 20% of the nation‟s population, they took more than 80% of the agriculturally productive land and drove the original owners to the unproductive reserves where they were cramped and could not practice agriculture at all. Various acts such as the Black Land Act of 1913, Development Trust Act of 1936 and the Native Laws Amendment Act of 1937 were introduced which further frustrated the displaced black population thereby plunging it deeper and deeper into poverty. The main objective behind the introduction of these acts was to restrain the black population from earning livelihoods through agriculture thus forcing them to offer their labour to white farmers for low wages just to earn some form of livelihood. Such unfair practices and distribution of land prompted the first democratically elected government of South Africa to embark on a drive to redistribute the nation‟s land equitably amongst its citizens to foster national reconciliation, stimulate economic growth and compensate those that were forced out or lost their land during the apartheid era. This initiative was called the Land Reform Programme (LRP) and was implemented with three prongs namely (i) land redistribution; (ii) restitution; and (iii) land tenure. Among the beneficiaries of the LRP were farmers from a community called Marselle in Kenton-on-sea. In addition to getting land for farming purposes, the Marselle farmers also obtained financial support from the government‟s Land Bank to help them kick-start their farming activities. However, in spite of such interventions, they have struggled to turn their activities into sustainable livelihood sources. One most likely cause for this is the lack of farming knowledge and skills needed to make them more efficient and productive. This study was thus geared towards evaluating the knowledge and skills gap in Marselle which, when addressed, could make the Marselle farmers more productive. Its focus was limited to the 32 livestock and 8 chicory farmers that are recognized members of their respective projects. Focus was limited only to these farmers since the next phase of this study will involve building their capacity based on the skills gaps identified through this study. The findings showed that the two projects benefited at least 130 individuals belonging to the farming households, with 67.5% of these households headed by males. The age of these farmers was equally shared at 40% each between those above 65 years and those that only went as far as fourth grade. No one went to tertiary at all. At least 75% of the investigated farmers were unemployed and 42% of this population was pensioners. In terms of income though, 64.98% of it was from external sources. The Masakhane Silime (Chicory) project was implemented to generate income and provide job opportunities for the locals but neither of these objectives had been met at the time the data for this study was collected due to various challenges like lack of funds and infrastructure to enhance productivity. Just like the chicory project, the livestock project had its own objectives, namely; to remove animals from the residential areas, provide the animals with a safe place, reduce road accidents and also to provide a livelihood source for local farmers. Due to overgrazing the pastures, lack of proper camps and other challenges, some effort still needs to be put to achieve these objectives. Even though the livestock project was formed with these objectives in mind, the farmers themselves reared livestock either for personal consumption, selling, ritual purposes, store of wealth or all these combined. Regarding technical skills, livestock farmers were found to rely mostly on indigenous knowledge sources to attain farming knowledge. Only animal healthcare knowledge was popular to more than half the respondents. This was said to be due to the focus group meetings held on the farm every other Wednesday to share information with local extension officers. In spite of these information sharing events, livestock farmers identified training on how to feed; market; handle; and treat their livestock as key intervention knowledge areas. Attendance to these focus group meetings was limited to livestock farmers only. Various socio-economic factors were also found to have some form of influence on the acquisition of livestock knowledge. Education was the most dominant factor, with a significant association with the farmers‟ feeding (p=0.033); animal healthcare (P=0.038); marketing (p=0.009); veld management (p=0.036); and cattle slaughtering (p=0.027) knowledge. Other variables most influential include the gender and age of the household head. The former was significant at 95% confidence level for farmers‟ feeding knowledge (p=0.021); animal healthcare (p=0.039); marketing (p=0.043); livestock housing and handling (p=0.023); veld management (p=0.018); and cattle slaughtering (p=0.043). The dominance of males in acquiring these skills could be explained by the fact that the majority of the livestock project members were males. The majority of the few female members became members by default after the passing on of their husbands but their participation in the project was done through other project members who looked after their animals on their behalf. The number of farming years also had some positive and significant influence on other knowledge areas such as feeding (p=0.021) and livestock housing and handling (p=0.013). The logic supporting this association is that farmers tend to accumulate new and more skills the longer they stay in the same enterprise. In addition, most of the interviewed farmers were farm labourers prior to relocating to Marselle hence they acquired the necessary knowledge long before the project started. Concerning the chicory project, its members also relied heavily on indigenous knowledge sources for farming knowledge. Soil preparation (24.1%); planting (20.7%); land care (24.1%); and mechanical weed control (48.3%) were the knowledge areas lacked by more than half the respondents. The farmers identified land preparation (75%); communication skills (25%); marketing (100%); financial management (62%); and harvesting (88%) as the key crucial intervention areas they needed prioritized. As a study meant to inform the capacity building phase of the Land Bank project, this study identified the existing skills gaps in the two projects implemented in Forest Hill. When implementing the Capacity Building (CB) phase, various socio-economic factors will have to be considered. For example, the proposed intervention should not discriminate against anyone on the grounds of gender or physical abilities. The skills introduced should also be simple enough to be accepted and acquired even by the illiterate, especially when one considers the high illiteracy levels amongst the respondents. Efforts should also be made to create partnerships with the right organizations or groups of people so that they provide the required expertise and resources for the benefit of the farmers as and when required.
- Full Text:
- Date Issued: 2013
Analysis of temporal and spatial variations in water storage by means of gravimetric and hydrologic methods in the region around the South African gravimetric observation station
- Authors: Mahed, Gaathier
- Date: 2013
- Subjects: Ground water -- South Africa , Geology -- South Africa , Hydrogeology -- South Africa , Water-supply -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/6714 , vital:21137
- Description: This work examines the use of gravity data and its application to subsurface water reservoirs in the immediate vicinity of the South African Geodynamic Observatory, Sutherland (SAGOS), situated in a semi-arid region of the Karoo region of South Africa, and underlain by the Karoo sedimentary rocks intruded by dolerite dykes and sills. SAGOS houses the only supergravity metre (SG) in Africa, and this thesis sets out to test its use in monitoring groundwater dynamics using hydrological and gravity data. The main aim of this work is the application of the SG data, in conjunction with hydrological data, to better understand episodic recharge of subsurface reservoirs. The importance of water as a resource, globally and specifically the Karoo, is reviewed in conjunction with supply and demand of water. This is to contextualise the socio-economic, technical as well as policy issues related to water resource management. Applicable technologies for water resource management and efficient water use are highlighted and the application of gravity to hydrology is introduced, including satellite as well as ground based tools. In addition, arid zone hydrology as well as recharge and its mechanisms are analysed in order to better understand these processes when examined from gravity measurements. Issues related to understanding flow within the vadose zone as well as in secondary aquifers are examined, and gravity residuals and subsurface hydrology are highlighted. Thereafter, a conceptual groundwater flow modelof the study area is developed using multiple tools. First, the geology around SAGOS was mapped using SPOT 5 imagery and then ground truthed. Second, stable isotopes and water chemistry analysis was undertaken on water samples from selected boreholes. The results allude to preferential flow acting as the main mechanism for groundwater recharge. Follow-up pump-tests illustrate that fracture connectivity is greatest at close proximity to the dyke. Soil mapping, using aerial photography was also undertaken. Duplex soils, enriched with clay at depth, dominate the study area. Using in-situ infiltration tests, it is shown that the alluvium, which lines the river beds, has a higher hydraulic conductivity than the other soils, confirming that these streams act as preferential conduits for subsurface recharge. Precipitation events were correlated against gravity residuals at 4 wells, over different time periods. The results are examined using time series analyses. Gravity residuals from well SA BK07, over a period of 24 hours after the rainfall event, delineate instances of negative correlations, as well as strong positive correlations (of up to 0.9). On the whole however, correlations between gravity and groundwater at SA BK07 are variable and weak, and in conjunction with water level measurements and water chemistry, the data suggest that this well is located in a dynamic conduit (throughflow) and not in a permanent groundwater reservoir. By contrast, other wells show strong positive correlations between gravity residuals and water levels following episodic recharge events for a later time series. Correlations between the water levels and gravity residuals in wells SA BK04, SA BK05 and SA BK 01 are in excess of 0.7 for specific rainfall events. In summary, the results suggests that gravity is an excellent tool for measuring episodic groundwater recharge within the immediate vicinity of the SAGOS. This implies that gravity can aid in monitoring groundwater losses/gains in arid and semi-arid areas. Recommendations for future work are highlighted at the end; these include the possible use of hydrological modelling of reservoirs at various scales and then comparing these results to the SG as well as GOCE and GRACE satellites data, and then improving numerical modelling of the groundwater dynamics for sites like Sutherland and the surrounding arid Karoo region, where sparse water shortages, and potential pollution related to fracking for shale-gas, are likely to compete with established water needs for farming and human consumption. It is also suggested that the gravity modelling be examined to better understand site specific scenarios and thus aid in improving the processing of the gravity signal.
- Full Text:
- Date Issued: 2013
- Authors: Mahed, Gaathier
- Date: 2013
- Subjects: Ground water -- South Africa , Geology -- South Africa , Hydrogeology -- South Africa , Water-supply -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/6714 , vital:21137
- Description: This work examines the use of gravity data and its application to subsurface water reservoirs in the immediate vicinity of the South African Geodynamic Observatory, Sutherland (SAGOS), situated in a semi-arid region of the Karoo region of South Africa, and underlain by the Karoo sedimentary rocks intruded by dolerite dykes and sills. SAGOS houses the only supergravity metre (SG) in Africa, and this thesis sets out to test its use in monitoring groundwater dynamics using hydrological and gravity data. The main aim of this work is the application of the SG data, in conjunction with hydrological data, to better understand episodic recharge of subsurface reservoirs. The importance of water as a resource, globally and specifically the Karoo, is reviewed in conjunction with supply and demand of water. This is to contextualise the socio-economic, technical as well as policy issues related to water resource management. Applicable technologies for water resource management and efficient water use are highlighted and the application of gravity to hydrology is introduced, including satellite as well as ground based tools. In addition, arid zone hydrology as well as recharge and its mechanisms are analysed in order to better understand these processes when examined from gravity measurements. Issues related to understanding flow within the vadose zone as well as in secondary aquifers are examined, and gravity residuals and subsurface hydrology are highlighted. Thereafter, a conceptual groundwater flow modelof the study area is developed using multiple tools. First, the geology around SAGOS was mapped using SPOT 5 imagery and then ground truthed. Second, stable isotopes and water chemistry analysis was undertaken on water samples from selected boreholes. The results allude to preferential flow acting as the main mechanism for groundwater recharge. Follow-up pump-tests illustrate that fracture connectivity is greatest at close proximity to the dyke. Soil mapping, using aerial photography was also undertaken. Duplex soils, enriched with clay at depth, dominate the study area. Using in-situ infiltration tests, it is shown that the alluvium, which lines the river beds, has a higher hydraulic conductivity than the other soils, confirming that these streams act as preferential conduits for subsurface recharge. Precipitation events were correlated against gravity residuals at 4 wells, over different time periods. The results are examined using time series analyses. Gravity residuals from well SA BK07, over a period of 24 hours after the rainfall event, delineate instances of negative correlations, as well as strong positive correlations (of up to 0.9). On the whole however, correlations between gravity and groundwater at SA BK07 are variable and weak, and in conjunction with water level measurements and water chemistry, the data suggest that this well is located in a dynamic conduit (throughflow) and not in a permanent groundwater reservoir. By contrast, other wells show strong positive correlations between gravity residuals and water levels following episodic recharge events for a later time series. Correlations between the water levels and gravity residuals in wells SA BK04, SA BK05 and SA BK 01 are in excess of 0.7 for specific rainfall events. In summary, the results suggests that gravity is an excellent tool for measuring episodic groundwater recharge within the immediate vicinity of the SAGOS. This implies that gravity can aid in monitoring groundwater losses/gains in arid and semi-arid areas. Recommendations for future work are highlighted at the end; these include the possible use of hydrological modelling of reservoirs at various scales and then comparing these results to the SG as well as GOCE and GRACE satellites data, and then improving numerical modelling of the groundwater dynamics for sites like Sutherland and the surrounding arid Karoo region, where sparse water shortages, and potential pollution related to fracking for shale-gas, are likely to compete with established water needs for farming and human consumption. It is also suggested that the gravity modelling be examined to better understand site specific scenarios and thus aid in improving the processing of the gravity signal.
- Full Text:
- Date Issued: 2013
Antifugal evaluation and phytochemical analysis of selected medicinal plants used in the treatment of fungal diseases associated with HIV infection in the Eastern Cape Province, South Africa
- Authors: Mbeng, Wilfred Otang
- Date: 2013
- Subjects: Medicinal plants -- ethnobotanical survey , Opportunistic fungal infections , HIV/AIDS -- Cytotoxicity , Eastern Cape -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD (Botany)
- Identifier: vital:11307 , http://hdl.handle.net/10353/d1006834 , Medicinal plants -- ethnobotanical survey , Opportunistic fungal infections , HIV/AIDS -- Cytotoxicity , Eastern Cape -- South Africa
- Description: Background. As a result of the AIDS pandemic, many people areimmuno compromised andopportunistic fungal infections (OFIs) such as candidiasis are common. Despite the widespread use of medicinal plants in South Africa, there is a dearth of knowledge regarding the use of such plants in the management of these infections. This study evaluates three South African medicinal plants (Arctotis arctotoides, Pittosporum viridiflorum, and Gasteria bicolor) traditionally used in the treatment of OFIs in HIV/AIDS patients, in the Eastern Cape Province, South Africa. Materials and methods. A six-stage process of documentation, evaluation and analysis of results was conducted: (1) Selection of medicinal plants most frequently used in the treatment of OFIs through ethnomedical studies and the survey of specialised literature; (2) Collection and preparation of the extract of each plant; (3) Antifungal evaluation of the crude plant extracts. (4) Phytochemical and antioxidant evaluation of the active crude plant extracts; (5) Cytotoxicity evaluation of the bioactive extracts using the Chang liver cell line, and (6) Statistical analysis of the results. Ethnobotanical information was obtained through interviews with traditional healers and AIDS patients with the aid of semi-structured questionnaires, direct observations and by reviewing studies reported in the literature. Following the approval from the University of Fort Hare‘s Ethics Committee, 101 HIV/AIDS patients were recruited through convenience sampling into an anonymous cross-sectional questionnaire study. The agar diffusion and micro-dilution methods were used to determine the antifungal activities of the hexane, acetone and aqueous extracts of A. arctotoides, G. bicolor and P. viridiflorum against 10 opportunistic fungi.
- Full Text:
- Date Issued: 2013
- Authors: Mbeng, Wilfred Otang
- Date: 2013
- Subjects: Medicinal plants -- ethnobotanical survey , Opportunistic fungal infections , HIV/AIDS -- Cytotoxicity , Eastern Cape -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD (Botany)
- Identifier: vital:11307 , http://hdl.handle.net/10353/d1006834 , Medicinal plants -- ethnobotanical survey , Opportunistic fungal infections , HIV/AIDS -- Cytotoxicity , Eastern Cape -- South Africa
- Description: Background. As a result of the AIDS pandemic, many people areimmuno compromised andopportunistic fungal infections (OFIs) such as candidiasis are common. Despite the widespread use of medicinal plants in South Africa, there is a dearth of knowledge regarding the use of such plants in the management of these infections. This study evaluates three South African medicinal plants (Arctotis arctotoides, Pittosporum viridiflorum, and Gasteria bicolor) traditionally used in the treatment of OFIs in HIV/AIDS patients, in the Eastern Cape Province, South Africa. Materials and methods. A six-stage process of documentation, evaluation and analysis of results was conducted: (1) Selection of medicinal plants most frequently used in the treatment of OFIs through ethnomedical studies and the survey of specialised literature; (2) Collection and preparation of the extract of each plant; (3) Antifungal evaluation of the crude plant extracts. (4) Phytochemical and antioxidant evaluation of the active crude plant extracts; (5) Cytotoxicity evaluation of the bioactive extracts using the Chang liver cell line, and (6) Statistical analysis of the results. Ethnobotanical information was obtained through interviews with traditional healers and AIDS patients with the aid of semi-structured questionnaires, direct observations and by reviewing studies reported in the literature. Following the approval from the University of Fort Hare‘s Ethics Committee, 101 HIV/AIDS patients were recruited through convenience sampling into an anonymous cross-sectional questionnaire study. The agar diffusion and micro-dilution methods were used to determine the antifungal activities of the hexane, acetone and aqueous extracts of A. arctotoides, G. bicolor and P. viridiflorum against 10 opportunistic fungi.
- Full Text:
- Date Issued: 2013
Application of bidentate N,N'-donor extractants in the hydrometallurgical separation of base metals from an acidic sulfate medium
- Authors: Okewole, Adeleye Ishola
- Date: 2013
- Subjects: Hydrometallurgy Sulfates Nanofibers Electrospinning Sorbents Extraction (Chemistry) Solvent extraction Stereochemistry
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4281 , http://hdl.handle.net/10962/d1002610
- Description: Bidentate imidazole-based extractants, 1-octylimidazole-2-aldoxime (OIMOX) and 1-octyl-2-(2′-pyridyl)imidazole (OPIM), along with dinonylnaphthalene sulfonic acid (DNNSA) as a synergist, were investigated as potential selective extractants for Cu²⁺and Ni²⁺ respectively from base metals in a solvent extraction system. The study was extended to evaluate the sorption and separation of Ni²⁺ from other base metals in a solid-solution system using microspherical Merrifield resins and nanofibers functionalized with 2,2′-pyridylimidazole. Copper was effectively separated with OIMOX and DNNSA as extractants from nickel with ΔpH½ ≈1.05 and the extraction order of Cu²⁺ > Ni²⁺ > Zn²⁺ > Cd²⁺> Co²⁺ was achieved as a function of pH. At pH 1.65 the extracted copper, from a synthetic mixture of the base metals reached 90.13(±0.90)%, and through a two-step extraction process 98.22(±0.29)% copper was recovered with negligible nickel and cobalt impurities. Stripping of the copper from the loaded organic phase using TraceSelect sulphuric acid at pH 0.35 yielded 96.60(±0.44)% of the loaded quantity after the second stage of stripping. The separation of Ni²⁺ from the borderline and hard acids; Co²⁺, Cu²⁺, Zn²⁺, Fe2²⁺, Fe²⁺, Mn²⁺, Mg2²⁺ and Ca²⁺ at a pH range of 0.5-3.5 with OPIM and DNNSA was acvieved to the tune of a ΔpH½≈ 1.6 with respect to cobalt from a sulfate and sulfate/chloride media. A three-stage counter-current extraction of Ni²⁺, at the optimized pH of 1.89, from a synthetic mixture of Ni²⁺, Co²⁺ and Cu²⁺, yielded 99.01(±1.79)%. The total co-extracted Cu²⁺ was 48.72(±0.24)% of the original quantity in the mixture, and it was 19.85(±0.28%) for Co²⁺. The co-extracted Cu²⁺ was scrubbed off from the loaded organic phase at pH≈8.5 by using an ammonium buffer, while co-extracted Co²⁺ was selectively and quantitatively stripped with H₂SO₄ at pH 1.64. The total recovery of Ni²⁺ by stripping at pH 0.32 was 94.05(±1.70)%. In the solid-liquid system, Ni²⁺ was separated from Co²⁺, Cu²⁺, and Fe²⁺ with the microspherical resins funtionalised with 2,2′-pyridylimidazole by a separation factor (β) in the range 22-45. Electrospun nanofibers as sorbents yielded high sorption capacity in the range of 0.97 - 1.45 mmol.g⁻¹ for the same metals ions. Thus, 1-octylimidazole-2-aldoxime (OIMOX), and1-octyl-2-(2′-pyridyl)imidazole (OPIM) can be effectively utilized alongside DNNSA as a co-extractant in the separation of Cu²⁺ and Ni²⁺ respectively from base metals in acidic sulfate medium in a solvent extraction process, and the latter as a selective ligand in the solid-liquid separation of Ni²⁺ from Co²⁺, Cu²⁺, and Fe²⁺.
- Full Text:
- Date Issued: 2013
- Authors: Okewole, Adeleye Ishola
- Date: 2013
- Subjects: Hydrometallurgy Sulfates Nanofibers Electrospinning Sorbents Extraction (Chemistry) Solvent extraction Stereochemistry
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4281 , http://hdl.handle.net/10962/d1002610
- Description: Bidentate imidazole-based extractants, 1-octylimidazole-2-aldoxime (OIMOX) and 1-octyl-2-(2′-pyridyl)imidazole (OPIM), along with dinonylnaphthalene sulfonic acid (DNNSA) as a synergist, were investigated as potential selective extractants for Cu²⁺and Ni²⁺ respectively from base metals in a solvent extraction system. The study was extended to evaluate the sorption and separation of Ni²⁺ from other base metals in a solid-solution system using microspherical Merrifield resins and nanofibers functionalized with 2,2′-pyridylimidazole. Copper was effectively separated with OIMOX and DNNSA as extractants from nickel with ΔpH½ ≈1.05 and the extraction order of Cu²⁺ > Ni²⁺ > Zn²⁺ > Cd²⁺> Co²⁺ was achieved as a function of pH. At pH 1.65 the extracted copper, from a synthetic mixture of the base metals reached 90.13(±0.90)%, and through a two-step extraction process 98.22(±0.29)% copper was recovered with negligible nickel and cobalt impurities. Stripping of the copper from the loaded organic phase using TraceSelect sulphuric acid at pH 0.35 yielded 96.60(±0.44)% of the loaded quantity after the second stage of stripping. The separation of Ni²⁺ from the borderline and hard acids; Co²⁺, Cu²⁺, Zn²⁺, Fe2²⁺, Fe²⁺, Mn²⁺, Mg2²⁺ and Ca²⁺ at a pH range of 0.5-3.5 with OPIM and DNNSA was acvieved to the tune of a ΔpH½≈ 1.6 with respect to cobalt from a sulfate and sulfate/chloride media. A three-stage counter-current extraction of Ni²⁺, at the optimized pH of 1.89, from a synthetic mixture of Ni²⁺, Co²⁺ and Cu²⁺, yielded 99.01(±1.79)%. The total co-extracted Cu²⁺ was 48.72(±0.24)% of the original quantity in the mixture, and it was 19.85(±0.28%) for Co²⁺. The co-extracted Cu²⁺ was scrubbed off from the loaded organic phase at pH≈8.5 by using an ammonium buffer, while co-extracted Co²⁺ was selectively and quantitatively stripped with H₂SO₄ at pH 1.64. The total recovery of Ni²⁺ by stripping at pH 0.32 was 94.05(±1.70)%. In the solid-liquid system, Ni²⁺ was separated from Co²⁺, Cu²⁺, and Fe²⁺ with the microspherical resins funtionalised with 2,2′-pyridylimidazole by a separation factor (β) in the range 22-45. Electrospun nanofibers as sorbents yielded high sorption capacity in the range of 0.97 - 1.45 mmol.g⁻¹ for the same metals ions. Thus, 1-octylimidazole-2-aldoxime (OIMOX), and1-octyl-2-(2′-pyridyl)imidazole (OPIM) can be effectively utilized alongside DNNSA as a co-extractant in the separation of Cu²⁺ and Ni²⁺ respectively from base metals in acidic sulfate medium in a solvent extraction process, and the latter as a selective ligand in the solid-liquid separation of Ni²⁺ from Co²⁺, Cu²⁺, and Fe²⁺.
- Full Text:
- Date Issued: 2013