A mobile toolkit and customised location server for the creation of cross-referencing location-based services
- Ndakunda, Shange-Ishiwa Tangeni
- Authors: Ndakunda, Shange-Ishiwa Tangeni
- Date: 2013
- Subjects: Location-based services -- Security measures , Mobile communication systems -- Security measures , Digital communications , Java (Computer program language) , Application software -- Development -- Computer programs , User interfaces (Computer systems)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4703 , http://hdl.handle.net/10962/d1013604
- Description: Although there are several Software Development kits and Application Programming Interfaces for client-side location-based services development, they mostly involve the creation of self-referencing location-based services. Self-referencing location-based services include services such as geocoding, reverse geocoding, route management and navigation which focus on satisfying the location-based requirements of a single mobile device. There is a lack of open-source Software Development Kits for the development of client-side location-based services that are cross-referencing. Cross-referencing location-based services are designed for the sharing of location information amongst different entities on a given network. This project was undertaken to assemble, through incremental prototyping, a client-side Java Micro Edition location-based services Software Development Kit and a Mobicents location server to aid mobile network operators and developers alike in the quick creation of the transport and privacy protection of cross-referencing location-based applications on Session Initiation Protocol bearer networks. The privacy of the location information is protected using geolocation policies. Developers do not need to have an understanding of Session Initiation Protocol event signaling specifications or of the XML Configuration Access Protocol to use the tools that we put together. The developed tools are later consolidated using two sample applications, the friend-finder and child-tracker services. Developer guidelines are also provided, to aid in using the provided tools.
- Full Text:
- Date Issued: 2013
- Authors: Ndakunda, Shange-Ishiwa Tangeni
- Date: 2013
- Subjects: Location-based services -- Security measures , Mobile communication systems -- Security measures , Digital communications , Java (Computer program language) , Application software -- Development -- Computer programs , User interfaces (Computer systems)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4703 , http://hdl.handle.net/10962/d1013604
- Description: Although there are several Software Development kits and Application Programming Interfaces for client-side location-based services development, they mostly involve the creation of self-referencing location-based services. Self-referencing location-based services include services such as geocoding, reverse geocoding, route management and navigation which focus on satisfying the location-based requirements of a single mobile device. There is a lack of open-source Software Development Kits for the development of client-side location-based services that are cross-referencing. Cross-referencing location-based services are designed for the sharing of location information amongst different entities on a given network. This project was undertaken to assemble, through incremental prototyping, a client-side Java Micro Edition location-based services Software Development Kit and a Mobicents location server to aid mobile network operators and developers alike in the quick creation of the transport and privacy protection of cross-referencing location-based applications on Session Initiation Protocol bearer networks. The privacy of the location information is protected using geolocation policies. Developers do not need to have an understanding of Session Initiation Protocol event signaling specifications or of the XML Configuration Access Protocol to use the tools that we put together. The developed tools are later consolidated using two sample applications, the friend-finder and child-tracker services. Developer guidelines are also provided, to aid in using the provided tools.
- Full Text:
- Date Issued: 2013
A model for enhancing employee engagement in private emergency medical doctors
- Authors: Leeching, Jonray Kevin
- Date: 2013
- Subjects: Medical economics -- South Africa Employee health promotion , Emergency medicine Medical care -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/47925 , vital:40453
- Description: Since the beginning of the millennium there has been a drive by organisations to achieve more with fewer resources. This has been heightened further by the global financial recession which has both direct and indirect effects on South Africa. Employee engagement has now become a critical business issue as the economic landscape becomes increasingly turbulent and organisations need coherent strategies to maintain their competitive advantages. Employee engagement is a business management concept that is particularly relevant to organisations that leverage off human capital and involves the maximising of individual commitment to and satisfaction with work. When the current healthcare environment is taken into consideration, with its dire shortage of medical doctors, a human resources scheme that has employee engagement at its heart must be considered an imperative by medical organisations. Upon embarking on the research into the topic it became evident that there was a scarcity of investigations into employee engagement as it applied to physicians. The purpose of this treatise, then, is to examine the key drivers of employee engagement in emergency medicine doctors and develop an engagement model that can be used by organisations to enhance this positive psychological state for their good, the good of the medical doctor and, in due course, for their patients. In order to achieve this goal a thorough literature review was performed which drew on both academic and practitioner sources of information into the concepts of employee, knowledge worker and physician engagement. This led to the development of a hypothesised model which was tested using rigorous measures incorporating questionnaire-style, quantitative data collection and statistical analysis. The results of the research show that communication; work-life; company alignment; growth and development; recognition and reward; management support; autonomy; and mission and purpose are all closely associated with the construct of employee engagement. Work-life and company alignment, in particular, were shown to have direct positive associations with the concept and are postulated to be key areas for emergency medical organisations to focus their attentions in the quest for engaged and motivated doctors. Ultimately, employee engagement is shown to be valuable, measurable and actionable. The devised model for employee engagement in emergency medical doctors can be utilised in the harnessing of physicians hearts and minds to the work that they love doing and the organisations that they love doing it for. This is a win-win result for all of the important stakeholders of healthcare in South Africa.
- Full Text:
- Date Issued: 2013
- Authors: Leeching, Jonray Kevin
- Date: 2013
- Subjects: Medical economics -- South Africa Employee health promotion , Emergency medicine Medical care -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/47925 , vital:40453
- Description: Since the beginning of the millennium there has been a drive by organisations to achieve more with fewer resources. This has been heightened further by the global financial recession which has both direct and indirect effects on South Africa. Employee engagement has now become a critical business issue as the economic landscape becomes increasingly turbulent and organisations need coherent strategies to maintain their competitive advantages. Employee engagement is a business management concept that is particularly relevant to organisations that leverage off human capital and involves the maximising of individual commitment to and satisfaction with work. When the current healthcare environment is taken into consideration, with its dire shortage of medical doctors, a human resources scheme that has employee engagement at its heart must be considered an imperative by medical organisations. Upon embarking on the research into the topic it became evident that there was a scarcity of investigations into employee engagement as it applied to physicians. The purpose of this treatise, then, is to examine the key drivers of employee engagement in emergency medicine doctors and develop an engagement model that can be used by organisations to enhance this positive psychological state for their good, the good of the medical doctor and, in due course, for their patients. In order to achieve this goal a thorough literature review was performed which drew on both academic and practitioner sources of information into the concepts of employee, knowledge worker and physician engagement. This led to the development of a hypothesised model which was tested using rigorous measures incorporating questionnaire-style, quantitative data collection and statistical analysis. The results of the research show that communication; work-life; company alignment; growth and development; recognition and reward; management support; autonomy; and mission and purpose are all closely associated with the construct of employee engagement. Work-life and company alignment, in particular, were shown to have direct positive associations with the concept and are postulated to be key areas for emergency medical organisations to focus their attentions in the quest for engaged and motivated doctors. Ultimately, employee engagement is shown to be valuable, measurable and actionable. The devised model for employee engagement in emergency medical doctors can be utilised in the harnessing of physicians hearts and minds to the work that they love doing and the organisations that they love doing it for. This is a win-win result for all of the important stakeholders of healthcare in South Africa.
- Full Text:
- Date Issued: 2013
A model for supporting environmental awereness in higher education using social media
- Authors: Tlebere, Thabo Eugene
- Date: 2013
- Subjects: Social media , Environmental education , Universities and colleges
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:10496 , http://hdl.handle.net/10948/d1020820
- Description: University sustainability is a field of research that has been gaining increased interest in recent years. The reduction of environmental impact has become a strategic objective of universities globally. Universities have been prompted to take necessary action to ensure that their environmental impact is at a minimum. The environmental component of sustainability deals with the current conservation of the earth’s natural resources so that future generations can also have access to them. Human beings, due to their increasing needs, are accountable for the exploitation of natural resources. They are regarded as the main contributors to imbalances in the natural systems. Environmental concerns such as global warming, deforestations, disposal of wastes, and ozone reduction are the outcomes of the damage caused by humans on the environment. The aim of environmental education is to acquire remediation of the environment by making individuals aware of the environment and by educating them about how to live a more sustainable lifestyle. Environmental awareness is perceived as knowledge of the factors that affect the environment and having sensitivity towards the environment. Higher Education Institutions (HEIs) bear the responsibility of educating individuals about environmental issues since they provide education to future leaders in society who may have an influence on future conditions in the environment. Social media are capable of delivering information to a large spectrum of audiences at a low cost. The Pew Internet American Life Project reported that the number of adults who utilise social media has increased by 57 percent from 2005 to 2011. Several environmental activist organisations utilise social media to carry out environmental awareness campaigns. In this study two environmental awareness campaigns which were powered by social media were conducted to improve environmental awareness of individuals in a higher education environment. A Social media Model for ENvironmental Awareness (SMENA) was developed to facilitate the environmental awareness campaigns. The SMENA includes a website, social media as well as theoretical guidelines for creating environmental awareness campaigns, and for using social media for environmental awareness campaigns. A case study at the Nelson Mandela Metropolitan University (NMMU) was used to empirically evaluate SMENA. Students at the Department of Computer Sciences of NMMU were exposed to information about environmental issues through social media with the intention of improving their environmental knowledge and awareness. The SMENA website usability was rated positively and students enjoyed the blogs and information distributed by means of social media. The results of the study intervention were positive and showed that social media can be used to improve the environmental knowledge of students. This study provides a valuable contribution to both the field of environmental education and social media usage and acceptance. The guidelines and requirements for using social media to improve environmental awareness provided in this study can be used to assist educators and university management with addressing the problems of reducing environmental impact.
- Full Text:
- Date Issued: 2013
- Authors: Tlebere, Thabo Eugene
- Date: 2013
- Subjects: Social media , Environmental education , Universities and colleges
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:10496 , http://hdl.handle.net/10948/d1020820
- Description: University sustainability is a field of research that has been gaining increased interest in recent years. The reduction of environmental impact has become a strategic objective of universities globally. Universities have been prompted to take necessary action to ensure that their environmental impact is at a minimum. The environmental component of sustainability deals with the current conservation of the earth’s natural resources so that future generations can also have access to them. Human beings, due to their increasing needs, are accountable for the exploitation of natural resources. They are regarded as the main contributors to imbalances in the natural systems. Environmental concerns such as global warming, deforestations, disposal of wastes, and ozone reduction are the outcomes of the damage caused by humans on the environment. The aim of environmental education is to acquire remediation of the environment by making individuals aware of the environment and by educating them about how to live a more sustainable lifestyle. Environmental awareness is perceived as knowledge of the factors that affect the environment and having sensitivity towards the environment. Higher Education Institutions (HEIs) bear the responsibility of educating individuals about environmental issues since they provide education to future leaders in society who may have an influence on future conditions in the environment. Social media are capable of delivering information to a large spectrum of audiences at a low cost. The Pew Internet American Life Project reported that the number of adults who utilise social media has increased by 57 percent from 2005 to 2011. Several environmental activist organisations utilise social media to carry out environmental awareness campaigns. In this study two environmental awareness campaigns which were powered by social media were conducted to improve environmental awareness of individuals in a higher education environment. A Social media Model for ENvironmental Awareness (SMENA) was developed to facilitate the environmental awareness campaigns. The SMENA includes a website, social media as well as theoretical guidelines for creating environmental awareness campaigns, and for using social media for environmental awareness campaigns. A case study at the Nelson Mandela Metropolitan University (NMMU) was used to empirically evaluate SMENA. Students at the Department of Computer Sciences of NMMU were exposed to information about environmental issues through social media with the intention of improving their environmental knowledge and awareness. The SMENA website usability was rated positively and students enjoyed the blogs and information distributed by means of social media. The results of the study intervention were positive and showed that social media can be used to improve the environmental knowledge of students. This study provides a valuable contribution to both the field of environmental education and social media usage and acceptance. The guidelines and requirements for using social media to improve environmental awareness provided in this study can be used to assist educators and university management with addressing the problems of reducing environmental impact.
- Full Text:
- Date Issued: 2013
A phenomenological exploration : how secondary school teachers cope with depressed adolescents in their classrooms
- Authors: Vermonti, Stefano
- Date: 2013
- Subjects: Teachers -- Training of , Depression in adolescence , Inclusive education
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9585 , http://hdl.handle.net/10948/d1020935
- Description: This study focuses on the perception of teachers who have depressed adolescent learners in their classrooms as well as explores how teachers cope with teaching depressed adolescent learners in their classrooms. For the purpose of this study, a qualitative research method was employed. Data was collected in the form of twelve semi-structured interviews with teachers in order to ascertain their perceptions on including and accommodating depressed adolescent learners in their classrooms. The data was analysed for emerging themes and sub-themes according to Tesch‟s eightstep data analysis process. This study highlights the characteristics, symptoms and causes of depression in adolescents and the effect it has on learners within our educational system. The results of the study indicate that the inclusion of depressed adolescents in the classroom can be problematic for teachers since they feel that they are not suitably trained to deal with these learners in a teaching and learning environment. The participating teachers indicated that they are not able to identify and support depressed adolescent learners in their classrooms effectively. The participating teachers feel that they require further training on how to refer these depressed adolescent learners and their parents for further intervention and support. Based on the findings of this study, the researcher constructed guiding principles in order to address the issues raised by the participating teachers. In the light of the guiding principles, recommendations were made towards teachers, parents, schools, health professionals, the Department of Education, the Department of Health and further research in order to accommodate depressed adolescent learners in South African schools effectively.
- Full Text:
- Date Issued: 2013
- Authors: Vermonti, Stefano
- Date: 2013
- Subjects: Teachers -- Training of , Depression in adolescence , Inclusive education
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9585 , http://hdl.handle.net/10948/d1020935
- Description: This study focuses on the perception of teachers who have depressed adolescent learners in their classrooms as well as explores how teachers cope with teaching depressed adolescent learners in their classrooms. For the purpose of this study, a qualitative research method was employed. Data was collected in the form of twelve semi-structured interviews with teachers in order to ascertain their perceptions on including and accommodating depressed adolescent learners in their classrooms. The data was analysed for emerging themes and sub-themes according to Tesch‟s eightstep data analysis process. This study highlights the characteristics, symptoms and causes of depression in adolescents and the effect it has on learners within our educational system. The results of the study indicate that the inclusion of depressed adolescents in the classroom can be problematic for teachers since they feel that they are not suitably trained to deal with these learners in a teaching and learning environment. The participating teachers indicated that they are not able to identify and support depressed adolescent learners in their classrooms effectively. The participating teachers feel that they require further training on how to refer these depressed adolescent learners and their parents for further intervention and support. Based on the findings of this study, the researcher constructed guiding principles in order to address the issues raised by the participating teachers. In the light of the guiding principles, recommendations were made towards teachers, parents, schools, health professionals, the Department of Education, the Department of Health and further research in order to accommodate depressed adolescent learners in South African schools effectively.
- Full Text:
- Date Issued: 2013
A poverty alleviation project of the Department of Social Development in Nelson Mandela Bay
- Authors: Veveza, Nonkosazana Sandra
- Date: 2013
- Subjects: Poverty -- Economic aspects -- South Africa -- Nelson Mandela Bay Municipality , Economic development projects -- South Africa -- Nelson Mandela Bay Municipality
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9200 , http://hdl.handle.net/10948/d1020401
- Description: Income-generating projects represent one strategy adopted by the Eastern Cape Department of Social Development (DoSD) to alleviate poverty. The purpose of this study was to evaluate the impact of an income-generating, or poverty alleviation, project funded by the DoSD in New Brighton, Port Elizabeth, in the Eastern Cape Province of South Africa. A sample of ten respondents was drawn from the project. The sampling method of this study was purposive sampling. Data was gathered through semi-structured questionnaires. Related literature focusing on income-generating projects for poverty alleviation was reviewed. Various recommendations have been made, based on the findings of the study. The findings of the study indicated the need for regular visits from Department officials to conduct monitoring and evaluation. Project members also need training in financial management as they cannot manage their finances. The research findings indicated clearly that strategies used by the Department were not effective enough to achieve the desired goals of an income-generating project.
- Full Text:
- Date Issued: 2013
- Authors: Veveza, Nonkosazana Sandra
- Date: 2013
- Subjects: Poverty -- Economic aspects -- South Africa -- Nelson Mandela Bay Municipality , Economic development projects -- South Africa -- Nelson Mandela Bay Municipality
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9200 , http://hdl.handle.net/10948/d1020401
- Description: Income-generating projects represent one strategy adopted by the Eastern Cape Department of Social Development (DoSD) to alleviate poverty. The purpose of this study was to evaluate the impact of an income-generating, or poverty alleviation, project funded by the DoSD in New Brighton, Port Elizabeth, in the Eastern Cape Province of South Africa. A sample of ten respondents was drawn from the project. The sampling method of this study was purposive sampling. Data was gathered through semi-structured questionnaires. Related literature focusing on income-generating projects for poverty alleviation was reviewed. Various recommendations have been made, based on the findings of the study. The findings of the study indicated the need for regular visits from Department officials to conduct monitoring and evaluation. Project members also need training in financial management as they cannot manage their finances. The research findings indicated clearly that strategies used by the Department were not effective enough to achieve the desired goals of an income-generating project.
- Full Text:
- Date Issued: 2013
A process assessment framework for rural ICT projects in developing countries: an exploration of the Siyakhula Living Lab, South Africa
- Authors: Osah, Umeoniso Joshua
- Date: 2013
- Subjects: Siyakhula Living Lab Information technology -- South Africa -- Eastern Cape Rural development projects -- South Africa -- Eastern Cape Rural development projects -- Evaluation -- South Africa -- Eastern Cape Communication in economic development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:1133 , http://hdl.handle.net/10962/d1001623
- Description: Rural development can be supported by information and knowledge which are key strategic resources for socio economic development. ICTs enable the facilitation and communication of information between remotely dispersed individuals or groups and more developed regions. While it has become common place that ICTs possess capabilities to potentially support rural development, the concept of ICT for development (ICT4D) is still fraught with challenges and barriers, which impede the success and sustainability of ICT4D projects. It is therefore essential to evaluate rural ICT projects, as such an analysis may aid in revealing information related to the need, effectiveness, impact, and sustainability of these projects. This research seeks to further the implementation and exploration of the Rural ICT Comprehensive Evaluation Framework (RICT-CEF), through the application of the Process Assessment domain in a real life rural ICT project environment. The RICT-CEF framework consisting of 7 evaluation domains has the primary objective of evaluating rural ICT projects from their inception stages to post implementation. A process assessment seeks to determine whether or not a rural ICT project is operating to implement its intended functions in the intended way specified in the projects plan. Such an assessment is invaluable to a comprehensive evaluation. Evaluation questions for a process assessment are centred around critical themes of project performance. Critical themes are aspects of a programme or projects implementation which must be enacted in order to achieve desired project outcomes. This research study is aimed at identifying critical themes of process assessment relevant to rural ICT4D projects. To identify critical themes, assessment approaches on social programme process assessments, evaluation of information systems in use, and rural ICT4D project evaluation case studies are comparatively analysed. Fourteen assessment approaches from these three categories are selected based on criteria. To analyse selected assessment approaches, a template is created based on the research questions, foundational literature on process assessment and identified challenges applicable to process assessments of rural ICT4D projects. Comparing and contrasting critical themes from these assessment approaches highlight critical themes essential to assess in the iterative implementation phase of rural ICT projects. Accentuated critical themes include, service utilization, organizational function and external project factors. These themes, along with suggested guiding principles from literature for conducting process assessments enable the creation of a framework for conducting process assessments of rural ICT projects. The framework is labelled "the Rural ICT Project Process Assessment Framework (RICTP-PAF)". The application of the RICTP-PAF in a real life rural ICT project through a design science case study provides lessons learned (suitability and shortcomings) from applying the framework. This essentially demonstrates the sensitivity of the RICTP-PAF to rural contexts in which it is implemented in. For instance, the implemented prototype of the RICTP-PAF reveals that the framework places a great deal of emphasis on rural beneficiary perspectives. A practice which has been lacking in such evaluation exercises. Furthermore, the guiding principles elucidated, bring to mind best practices to deal with issues such as stakeholder conflict, unreliable data elicitation and unethical assessment practices. The RICTP-PAF represents a fundamental tool for process assessments of rural ICT projects, and may be adopted and customized to various rural ICT project contexts in developing countries.
- Full Text:
- Date Issued: 2013
- Authors: Osah, Umeoniso Joshua
- Date: 2013
- Subjects: Siyakhula Living Lab Information technology -- South Africa -- Eastern Cape Rural development projects -- South Africa -- Eastern Cape Rural development projects -- Evaluation -- South Africa -- Eastern Cape Communication in economic development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:1133 , http://hdl.handle.net/10962/d1001623
- Description: Rural development can be supported by information and knowledge which are key strategic resources for socio economic development. ICTs enable the facilitation and communication of information between remotely dispersed individuals or groups and more developed regions. While it has become common place that ICTs possess capabilities to potentially support rural development, the concept of ICT for development (ICT4D) is still fraught with challenges and barriers, which impede the success and sustainability of ICT4D projects. It is therefore essential to evaluate rural ICT projects, as such an analysis may aid in revealing information related to the need, effectiveness, impact, and sustainability of these projects. This research seeks to further the implementation and exploration of the Rural ICT Comprehensive Evaluation Framework (RICT-CEF), through the application of the Process Assessment domain in a real life rural ICT project environment. The RICT-CEF framework consisting of 7 evaluation domains has the primary objective of evaluating rural ICT projects from their inception stages to post implementation. A process assessment seeks to determine whether or not a rural ICT project is operating to implement its intended functions in the intended way specified in the projects plan. Such an assessment is invaluable to a comprehensive evaluation. Evaluation questions for a process assessment are centred around critical themes of project performance. Critical themes are aspects of a programme or projects implementation which must be enacted in order to achieve desired project outcomes. This research study is aimed at identifying critical themes of process assessment relevant to rural ICT4D projects. To identify critical themes, assessment approaches on social programme process assessments, evaluation of information systems in use, and rural ICT4D project evaluation case studies are comparatively analysed. Fourteen assessment approaches from these three categories are selected based on criteria. To analyse selected assessment approaches, a template is created based on the research questions, foundational literature on process assessment and identified challenges applicable to process assessments of rural ICT4D projects. Comparing and contrasting critical themes from these assessment approaches highlight critical themes essential to assess in the iterative implementation phase of rural ICT projects. Accentuated critical themes include, service utilization, organizational function and external project factors. These themes, along with suggested guiding principles from literature for conducting process assessments enable the creation of a framework for conducting process assessments of rural ICT projects. The framework is labelled "the Rural ICT Project Process Assessment Framework (RICTP-PAF)". The application of the RICTP-PAF in a real life rural ICT project through a design science case study provides lessons learned (suitability and shortcomings) from applying the framework. This essentially demonstrates the sensitivity of the RICTP-PAF to rural contexts in which it is implemented in. For instance, the implemented prototype of the RICTP-PAF reveals that the framework places a great deal of emphasis on rural beneficiary perspectives. A practice which has been lacking in such evaluation exercises. Furthermore, the guiding principles elucidated, bring to mind best practices to deal with issues such as stakeholder conflict, unreliable data elicitation and unethical assessment practices. The RICTP-PAF represents a fundamental tool for process assessments of rural ICT projects, and may be adopted and customized to various rural ICT project contexts in developing countries.
- Full Text:
- Date Issued: 2013
A psychobiographical study of Ellen Kuzwayo
- Authors: Arosi, Ziyanda
- Date: 2013
- Subjects: Kuzwayo, Ellen , Psychology -- Biographical methods , Life cycle, Human , Women, Black -- South Africa -- Social conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9894 , http://hdl.handle.net/10948/d1008658 , Kuzwayo, Ellen , Psychology -- Biographical methods , Life cycle, Human , Women, Black -- South Africa -- Social conditions
- Description: The current study is a psychobiography. The subject was chosen through purposive sampling based on the researcher’s personal interest and the remarkable impact this woman had within her society. Ellen Kuzwayo also meets the requirements of a psychobiography in that she is historically well known, inspirational, and her life has been completed. The study applies a qualitative research method in the form of a psychobiography, which aimed to describe Ellen Kuzwayo`s life accordingto Daniel Levinson`s Life Structure Theory of Adult Development. Levinson`s theory divides the lifespan into four developmental eras, each with its own biopsychosocial character. Each era in turn is divided into shorter periods of development. Levinson`s theory was chosenbecause it is specifically relevant to the development of women. The findings of the study indicate that Kuzwayo’s life was consistent with the pattern of development which Levinson (1996) identified. Kuzwayo was relatively successful in resolving the life tasks and transitional periods proposed by Levinson. This research study has given a positive demonstration of the value of development theory to investigate a particular human life. Furthermore, it emphasized the uniqueness of individuals in coping with the challenges of life. As a result it has opened up the possibility of perceiving people and their actions in a different way. Consequently, recommendations are offered in order to extend psychobiographical research on the life of Ellen Kuzwayo.
- Full Text:
- Date Issued: 2013
- Authors: Arosi, Ziyanda
- Date: 2013
- Subjects: Kuzwayo, Ellen , Psychology -- Biographical methods , Life cycle, Human , Women, Black -- South Africa -- Social conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9894 , http://hdl.handle.net/10948/d1008658 , Kuzwayo, Ellen , Psychology -- Biographical methods , Life cycle, Human , Women, Black -- South Africa -- Social conditions
- Description: The current study is a psychobiography. The subject was chosen through purposive sampling based on the researcher’s personal interest and the remarkable impact this woman had within her society. Ellen Kuzwayo also meets the requirements of a psychobiography in that she is historically well known, inspirational, and her life has been completed. The study applies a qualitative research method in the form of a psychobiography, which aimed to describe Ellen Kuzwayo`s life accordingto Daniel Levinson`s Life Structure Theory of Adult Development. Levinson`s theory divides the lifespan into four developmental eras, each with its own biopsychosocial character. Each era in turn is divided into shorter periods of development. Levinson`s theory was chosenbecause it is specifically relevant to the development of women. The findings of the study indicate that Kuzwayo’s life was consistent with the pattern of development which Levinson (1996) identified. Kuzwayo was relatively successful in resolving the life tasks and transitional periods proposed by Levinson. This research study has given a positive demonstration of the value of development theory to investigate a particular human life. Furthermore, it emphasized the uniqueness of individuals in coping with the challenges of life. As a result it has opened up the possibility of perceiving people and their actions in a different way. Consequently, recommendations are offered in order to extend psychobiographical research on the life of Ellen Kuzwayo.
- Full Text:
- Date Issued: 2013
A psychobiographical study of Martin Luther King Junior: an Adlerian perspective
- Authors: Twaku, Unathi
- Date: 2013
- Subjects: King, Martin Luther , Adlerian psychology , Psychology -- Biographical methods , Developmental psychology
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9967 , http://hdl.handle.net/10948/d1020900
- Description: Martin Luther King Junior was an advocate of non-violent social change strategies; he was a pastor, an author, the first president of the southern Christian leadership conference, a speaker, a Nobel Prize winner, and a leader. Martin Luther King junior was transformed by his deep family roots in the African American Baptist church. His formative experiences in his hometown of Atlanta were his theological studies, his varied models of religious and political leadership and his extensive network of contacts in the peace and social justice movements of his time. Although only 39 at the time of his death, Martin Luther King juniors’ life was remarkable for the ways it reflected and inspired so many of the twentieth century’s major intellectual, cultural and political developments. The primary aim of this study was to explore and describe the psychological development across the lifespan of Martin Luther King junior, by applying Alfred Adler’s theory of individual psychology. Martin Luther King junior’s life was explored in this study through systematic collection, analysis and interpretation of the historic data on his life, which highlighted seven significant historical periods: (a) Childhood and adolescence (1929 – 1944), (b)The inevitable (1944 – 1948), (c) The Purpose in his Destiny (1948 – 1951), (d) Family and mission (1952 – 1959), (e) Movement against segregation (1960 – 1963), (f) History is made (1963 – 1967), and (g) Unfinished business (1968). Adler’s framework was used to recognize, convert and reconstruct his life into a coherent narrative of his psychological development throughout his life. Alexander’s guidelines for extracting salient data was utilised to ensure accurate description of Martin Luther King junior’s life. A conceptual framework that is the Adlerian Matrix was included in the study as guide in presenting the research discussion and findings in an illuminating and integrative manner. The research discussion and findings suggested that Adler’s theoretical framework considers the biopsychosocial, cultural and historic influences in Martin Luther King junior’s personality development. In taking the context into consideration, Adler’s individual psychology identified King junior with a social useful lifestyle because of his high social interest which influenced his striving for superiority. This lifestyle guided his fictional goal which was selfless and aimed at contributing to the wellbeing of others. The private logic about himself, others and the world, which is developed in early childhood, was a positive navigator for the development of his personality and lifestyle. Thus according to the Adlerian theory, King junior could positively balance the resolution of the life tasks of occupation, social and love & marriage. The study of King junior’s personality development has provided an affirmative demonstration of the value of Adler’s psychological theory to understand the process of personality development in an individual life. It has highlighted the value of studying an individual life taking his context, including early experiences, family environment and every action, into consideration to understand the uniqueness of responding to life tasks and his perceptions. Recommendations were made for future research undertakings using psychobiographical research design and methodology to reveal, illuminate and reconstruct the lives of historic personalities
- Full Text:
- Date Issued: 2013
- Authors: Twaku, Unathi
- Date: 2013
- Subjects: King, Martin Luther , Adlerian psychology , Psychology -- Biographical methods , Developmental psychology
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9967 , http://hdl.handle.net/10948/d1020900
- Description: Martin Luther King Junior was an advocate of non-violent social change strategies; he was a pastor, an author, the first president of the southern Christian leadership conference, a speaker, a Nobel Prize winner, and a leader. Martin Luther King junior was transformed by his deep family roots in the African American Baptist church. His formative experiences in his hometown of Atlanta were his theological studies, his varied models of religious and political leadership and his extensive network of contacts in the peace and social justice movements of his time. Although only 39 at the time of his death, Martin Luther King juniors’ life was remarkable for the ways it reflected and inspired so many of the twentieth century’s major intellectual, cultural and political developments. The primary aim of this study was to explore and describe the psychological development across the lifespan of Martin Luther King junior, by applying Alfred Adler’s theory of individual psychology. Martin Luther King junior’s life was explored in this study through systematic collection, analysis and interpretation of the historic data on his life, which highlighted seven significant historical periods: (a) Childhood and adolescence (1929 – 1944), (b)The inevitable (1944 – 1948), (c) The Purpose in his Destiny (1948 – 1951), (d) Family and mission (1952 – 1959), (e) Movement against segregation (1960 – 1963), (f) History is made (1963 – 1967), and (g) Unfinished business (1968). Adler’s framework was used to recognize, convert and reconstruct his life into a coherent narrative of his psychological development throughout his life. Alexander’s guidelines for extracting salient data was utilised to ensure accurate description of Martin Luther King junior’s life. A conceptual framework that is the Adlerian Matrix was included in the study as guide in presenting the research discussion and findings in an illuminating and integrative manner. The research discussion and findings suggested that Adler’s theoretical framework considers the biopsychosocial, cultural and historic influences in Martin Luther King junior’s personality development. In taking the context into consideration, Adler’s individual psychology identified King junior with a social useful lifestyle because of his high social interest which influenced his striving for superiority. This lifestyle guided his fictional goal which was selfless and aimed at contributing to the wellbeing of others. The private logic about himself, others and the world, which is developed in early childhood, was a positive navigator for the development of his personality and lifestyle. Thus according to the Adlerian theory, King junior could positively balance the resolution of the life tasks of occupation, social and love & marriage. The study of King junior’s personality development has provided an affirmative demonstration of the value of Adler’s psychological theory to understand the process of personality development in an individual life. It has highlighted the value of studying an individual life taking his context, including early experiences, family environment and every action, into consideration to understand the uniqueness of responding to life tasks and his perceptions. Recommendations were made for future research undertakings using psychobiographical research design and methodology to reveal, illuminate and reconstruct the lives of historic personalities
- Full Text:
- Date Issued: 2013
A psychobiographical study of William Wilberforce
- Authors: Daubermann, Bettina Pamela
- Date: 2013
- Subjects: Personality development
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9966 , http://hdl.handle.net/10948/d1020857 , http://hdl.handle.net/10948/d1021085
- Description: The proposed study is of a psychobiographical nature and employs a qualitative research approach. The individual that forms the subject of this study is William Wilberforce. A social activist most of his life, Wilberforce is best known for his voice and works behind the abolition of the slave trade in 1807 and the abolition of slavery in 1833. His ambitious nature, social eloquence and verbal intellect resulted in him being elected as a member of parliament in the House of Commons in England during the period 1780 to 1825. Transformed by the Christian faith in 1885, Wilberforce came to the realization he had received a calling from God to speak up for those who could not with a specific task set out before him which was to abolish slavery. It was the purpose of the present research to explore and describe Wilberforce’s psychological development across his life-span according to Carl Rogers’ (1961) personality theory of optimal development. Salient aspects of Wilberforce’s life were related and compared to components of the theory so as to explore and describe the degree of optimal development that Wilberforce reached at different points in his life and whether he could be described as a fully functioning person. According to Rogers’ theory William Wilberforce was chosen as the research subject for his historical contribution to mankind by his devotion to the moral enhancement of his country.
- Full Text:
- Date Issued: 2013
- Authors: Daubermann, Bettina Pamela
- Date: 2013
- Subjects: Personality development
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9966 , http://hdl.handle.net/10948/d1020857 , http://hdl.handle.net/10948/d1021085
- Description: The proposed study is of a psychobiographical nature and employs a qualitative research approach. The individual that forms the subject of this study is William Wilberforce. A social activist most of his life, Wilberforce is best known for his voice and works behind the abolition of the slave trade in 1807 and the abolition of slavery in 1833. His ambitious nature, social eloquence and verbal intellect resulted in him being elected as a member of parliament in the House of Commons in England during the period 1780 to 1825. Transformed by the Christian faith in 1885, Wilberforce came to the realization he had received a calling from God to speak up for those who could not with a specific task set out before him which was to abolish slavery. It was the purpose of the present research to explore and describe Wilberforce’s psychological development across his life-span according to Carl Rogers’ (1961) personality theory of optimal development. Salient aspects of Wilberforce’s life were related and compared to components of the theory so as to explore and describe the degree of optimal development that Wilberforce reached at different points in his life and whether he could be described as a fully functioning person. According to Rogers’ theory William Wilberforce was chosen as the research subject for his historical contribution to mankind by his devotion to the moral enhancement of his country.
- Full Text:
- Date Issued: 2013
A qualitative evaluation of social work field instruction offered by universities in the Eastern Cape, South Africa
- Authors: Schmidt, Kim
- Date: 2013
- Subjects: Fieldwork (Educational method) -- South Africa -- Eastern Cape , Social service -- Fieldwork -- Study and teaching -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M SW
- Identifier: http://hdl.handle.net/10353/1272 , vital:26541 , Fieldwork (Educational method) -- South Africa -- Eastern Cape , Social service -- Fieldwork -- Study and teaching -- South Africa -- Eastern Cape
- Description: This research study describes an evaluation of social work field instruction offered by universities in the Eastern Cape, South Africa. Qualitative data was collected from agency field instructors, university fieldwork coordinators and social work students. This study’s findings indicated that field instruction needs a good foundation of experiential learning that is facilitated by report writing, journal writing and agency and university supervision. Findings also indicated a need for the screening, selection and training of agency field instructors. There was also an indication that universities should develop selection procedures to ensure that the best possible students are accepted into the Bachelor of Social Work (BSW) programme. All findings indicated that field instruction programmes are most effective when there is a strong university agency partnership. The study concludes by making recommendations for future development of standards relating to field instruction programmes in the Eastern Cape and South Africa. Key words: Social work, evaluative research, field instruction, experiential learning, reflection, agency field instructor, university supervisor, university fieldwork coordinator, social work student, social work education, social work training.
- Full Text:
- Date Issued: 2013
- Authors: Schmidt, Kim
- Date: 2013
- Subjects: Fieldwork (Educational method) -- South Africa -- Eastern Cape , Social service -- Fieldwork -- Study and teaching -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M SW
- Identifier: http://hdl.handle.net/10353/1272 , vital:26541 , Fieldwork (Educational method) -- South Africa -- Eastern Cape , Social service -- Fieldwork -- Study and teaching -- South Africa -- Eastern Cape
- Description: This research study describes an evaluation of social work field instruction offered by universities in the Eastern Cape, South Africa. Qualitative data was collected from agency field instructors, university fieldwork coordinators and social work students. This study’s findings indicated that field instruction needs a good foundation of experiential learning that is facilitated by report writing, journal writing and agency and university supervision. Findings also indicated a need for the screening, selection and training of agency field instructors. There was also an indication that universities should develop selection procedures to ensure that the best possible students are accepted into the Bachelor of Social Work (BSW) programme. All findings indicated that field instruction programmes are most effective when there is a strong university agency partnership. The study concludes by making recommendations for future development of standards relating to field instruction programmes in the Eastern Cape and South Africa. Key words: Social work, evaluative research, field instruction, experiential learning, reflection, agency field instructor, university supervisor, university fieldwork coordinator, social work student, social work education, social work training.
- Full Text:
- Date Issued: 2013
A review of Tribal Armed Conflict Resolution in selected counties in Lakes State, South Sudan
- Authors: Zakaria, John Lat
- Date: 2013
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11712 , http://hdl.handle.net/10353/d1015247
- Description: This mini-dissertation, aims to review tribal armed conflict resolution in selected Counties in Lakes State, South Sudan. The objectives of the study were to find out the consequences of the tribal armed conflicts on governance and service delivery and strategies to mitigate peace and tribal armed conflict resolution in order to enable development in the selected counties of Lakes state. Quantitative and qualitative data was collected from a sample of three hundred and ten (310) respondents who included the County Commissioners, Judges and Magistrates, Law enforcement officers, local government officers and traditional leaders through questionnaires and interviews. The study sought to review the effects of tribal armed conflicts on service delivery in the selected communities. It further examined conflict resolutions mechanisms and strategies that have been used by various actors and stakeholder to ameliorate tribal armed conflict in Lakes State, South Sudan. The results of the study showed that ethnicity in conflicts in South Sudan has played a significant role and has posed many challenges to scholars, political leaders, appointed public officials and communities alike. Some of the challenges include; tribalism, ethnic conflicts, and struggle over scarce resources. This has often led to rampant underdevelopment, under-representation in governance; unemployment and poverty, among administrative perils and dysfunctions that have subsequently been major drivers of tribal armed conflicts. Many youth who are unemployed are often involved in cattle raiding, hence revenge attacks often lead to frequent tribal armed conflicts. The study recommends that effective and sustainable peace building can be achieved through empowerment of the communities and use of traditional strategies in tribal armed conflict resolution in Lakes State. This is because external players often attempt to engage in peace building activities without seeking sustainable solutions at the grassroots level. Very often conflict resolution has been the preserve of NGOs and diplomats, who have no intimate acquaintance with local contexts. The study suggests that provision of services to the people through sustainable development of the rural areas and through the creation of alternative forms of livelihood, such as jobs, has to engage with and include the youth in economic development, so that tribal armed conflicts are ameliorated.
- Full Text:
- Date Issued: 2013
- Authors: Zakaria, John Lat
- Date: 2013
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11712 , http://hdl.handle.net/10353/d1015247
- Description: This mini-dissertation, aims to review tribal armed conflict resolution in selected Counties in Lakes State, South Sudan. The objectives of the study were to find out the consequences of the tribal armed conflicts on governance and service delivery and strategies to mitigate peace and tribal armed conflict resolution in order to enable development in the selected counties of Lakes state. Quantitative and qualitative data was collected from a sample of three hundred and ten (310) respondents who included the County Commissioners, Judges and Magistrates, Law enforcement officers, local government officers and traditional leaders through questionnaires and interviews. The study sought to review the effects of tribal armed conflicts on service delivery in the selected communities. It further examined conflict resolutions mechanisms and strategies that have been used by various actors and stakeholder to ameliorate tribal armed conflict in Lakes State, South Sudan. The results of the study showed that ethnicity in conflicts in South Sudan has played a significant role and has posed many challenges to scholars, political leaders, appointed public officials and communities alike. Some of the challenges include; tribalism, ethnic conflicts, and struggle over scarce resources. This has often led to rampant underdevelopment, under-representation in governance; unemployment and poverty, among administrative perils and dysfunctions that have subsequently been major drivers of tribal armed conflicts. Many youth who are unemployed are often involved in cattle raiding, hence revenge attacks often lead to frequent tribal armed conflicts. The study recommends that effective and sustainable peace building can be achieved through empowerment of the communities and use of traditional strategies in tribal armed conflict resolution in Lakes State. This is because external players often attempt to engage in peace building activities without seeking sustainable solutions at the grassroots level. Very often conflict resolution has been the preserve of NGOs and diplomats, who have no intimate acquaintance with local contexts. The study suggests that provision of services to the people through sustainable development of the rural areas and through the creation of alternative forms of livelihood, such as jobs, has to engage with and include the youth in economic development, so that tribal armed conflicts are ameliorated.
- Full Text:
- Date Issued: 2013
A role for heat shock protein 90 (Hsp90) in fibronectin matrix dynamics
- Authors: O'Hagan, Kyle Leonard
- Date: 2013
- Subjects: Molecular chaperones , Heat shock proteins , Metastasis , Cancer -- Treatment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4157 , http://hdl.handle.net/10962/d1018260
- Description: To date, a significant portion of research has been devoted to understanding the biological role of the molecular chaperone, heat shock protein 90 (Hsp90), in cancer development and metastasis. Studies have alluded to over 300 clients for intracellular Hsp90, many of which are involved in oncogenic signaling pathways, making Hsp90 a bone fide drug target with several inhibitors already in clinical trials. In recent years, a limited number of extracellular Hsp90 clients have been elucidated with roles in cancer cell migration and invasion. Examples of such clients include matrix metalloproteinase-2 (MMP-2), LRP-1/CD91 and HER-2. Inhibition of extracellular Hsp90 using cellimpermeable inhibitors has been shown to reduce cancer cell migration and metastasis by a hitherto undefined mechanism. Using surface biotinylation and an enzyme linked immunosorbent assay, we provided evidence to support that Hsp90 was found extracellularly in cancers of different origin, cell type and malignancy. Next, we isolated extracellular Hsp90-containing complexes from MDA-MB-231 breast cancer cells using a cell impermeable crosslinker followed by immunoprecipitation and identified by mass spectrometry that the extracellular matrix protein, fibronectin, co-precipitated with Hsp90β. This interaction between Hsp90β and fibronectin was confirmed using pull down assays and surface plasmon resonance spectroscopy with the purified proteins. The ability of exogenous Hsp90β to increase the insoluble fibronectin matrix in Hs578T breast cancer cells indicated a role for Hsp90 in fibronectin matrix stability or fibrillogenesis. Hsp90 knockdown by RNA interference or inhibition with the small molecule inhibitor, novobiocin, resulted in a dose and time-dependent reduction of the extracellular fibronectin matrix. Furthermore, novobiocin was shown to cause the internalization of a fluorescently-labeled exogenous fibronectin matrix incorporated into the extracellular matrix by Hs578T cells. This suggested endocytosis as a possible mechanism for fibronectin turnover. This was supported by the colocalization of fibronectin with key vesicular trafficking markers (Rab-5 and LAMP-1) in small, intracellular vesicles. Furthermore, treatment with the vesicular trafficking inhibitor, methyl-β-cyclodextrin, resulted in a dose-dependent recovery in the extracellular fibronectin matrix following treatment with novobiocin. Taken together, these data provided the first evidence to suggest fibronectin as a new client of Hsp90 and that Hsp90 was involved in regulating extracellular fibronectin matrix dynamics.
- Full Text:
- Date Issued: 2013
- Authors: O'Hagan, Kyle Leonard
- Date: 2013
- Subjects: Molecular chaperones , Heat shock proteins , Metastasis , Cancer -- Treatment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4157 , http://hdl.handle.net/10962/d1018260
- Description: To date, a significant portion of research has been devoted to understanding the biological role of the molecular chaperone, heat shock protein 90 (Hsp90), in cancer development and metastasis. Studies have alluded to over 300 clients for intracellular Hsp90, many of which are involved in oncogenic signaling pathways, making Hsp90 a bone fide drug target with several inhibitors already in clinical trials. In recent years, a limited number of extracellular Hsp90 clients have been elucidated with roles in cancer cell migration and invasion. Examples of such clients include matrix metalloproteinase-2 (MMP-2), LRP-1/CD91 and HER-2. Inhibition of extracellular Hsp90 using cellimpermeable inhibitors has been shown to reduce cancer cell migration and metastasis by a hitherto undefined mechanism. Using surface biotinylation and an enzyme linked immunosorbent assay, we provided evidence to support that Hsp90 was found extracellularly in cancers of different origin, cell type and malignancy. Next, we isolated extracellular Hsp90-containing complexes from MDA-MB-231 breast cancer cells using a cell impermeable crosslinker followed by immunoprecipitation and identified by mass spectrometry that the extracellular matrix protein, fibronectin, co-precipitated with Hsp90β. This interaction between Hsp90β and fibronectin was confirmed using pull down assays and surface plasmon resonance spectroscopy with the purified proteins. The ability of exogenous Hsp90β to increase the insoluble fibronectin matrix in Hs578T breast cancer cells indicated a role for Hsp90 in fibronectin matrix stability or fibrillogenesis. Hsp90 knockdown by RNA interference or inhibition with the small molecule inhibitor, novobiocin, resulted in a dose and time-dependent reduction of the extracellular fibronectin matrix. Furthermore, novobiocin was shown to cause the internalization of a fluorescently-labeled exogenous fibronectin matrix incorporated into the extracellular matrix by Hs578T cells. This suggested endocytosis as a possible mechanism for fibronectin turnover. This was supported by the colocalization of fibronectin with key vesicular trafficking markers (Rab-5 and LAMP-1) in small, intracellular vesicles. Furthermore, treatment with the vesicular trafficking inhibitor, methyl-β-cyclodextrin, resulted in a dose-dependent recovery in the extracellular fibronectin matrix following treatment with novobiocin. Taken together, these data provided the first evidence to suggest fibronectin as a new client of Hsp90 and that Hsp90 was involved in regulating extracellular fibronectin matrix dynamics.
- Full Text:
- Date Issued: 2013
A simulation study of the behaviour of the logrank test under different levels of stratification and sample sizes
- Authors: Jubane, Ido
- Date: 2013
- Subjects: Statistics , Survival analysis (Biometry)
- Language: English
- Type: Thesis , Masters , MSc (Biostatistics and Epidemiology)
- Identifier: vital:11784 , http://hdl.handle.net/10353/d1018558 , http://hdl.handle.net/10353/d1018559 , Statistics , Survival analysis (Biometry)
- Description: In clinical trials, patients are enrolled into two treatment arms. A researcher may be interested in studying the effectiveness of a new drug or the comparison of two drugs for the treatment of a disease. This survival data is later analysed using the logrank test or the Cox regression model to detect differences in survivor functions. However, the power function of the logrank test depends solely on the number of patients enrolled into the study. Because statisticians will always minimise type I and type II errors, a researcher carrying out a clinical trial must define beforehand, the number of patients to be enrolled into the clinical study. Without proper sample size and power estimation a clinical trial may fail to detect a false hypothesis of the equality of survivor functions. This study presents through simulation, a way of power and sample size estimation for clinical trials that use the logrank test for their data analysis and suggests an easy method to estimate power and sample size in such clinical studies. Findings on power analysis and sample size estimation on logrank test are applied to two real examples: one is the Veterans' Administration Lung Cancer study; and the other is the data from a placebo controlled trial of gamma interferon in chronic granulotomous disease.
- Full Text:
- Date Issued: 2013
- Authors: Jubane, Ido
- Date: 2013
- Subjects: Statistics , Survival analysis (Biometry)
- Language: English
- Type: Thesis , Masters , MSc (Biostatistics and Epidemiology)
- Identifier: vital:11784 , http://hdl.handle.net/10353/d1018558 , http://hdl.handle.net/10353/d1018559 , Statistics , Survival analysis (Biometry)
- Description: In clinical trials, patients are enrolled into two treatment arms. A researcher may be interested in studying the effectiveness of a new drug or the comparison of two drugs for the treatment of a disease. This survival data is later analysed using the logrank test or the Cox regression model to detect differences in survivor functions. However, the power function of the logrank test depends solely on the number of patients enrolled into the study. Because statisticians will always minimise type I and type II errors, a researcher carrying out a clinical trial must define beforehand, the number of patients to be enrolled into the clinical study. Without proper sample size and power estimation a clinical trial may fail to detect a false hypothesis of the equality of survivor functions. This study presents through simulation, a way of power and sample size estimation for clinical trials that use the logrank test for their data analysis and suggests an easy method to estimate power and sample size in such clinical studies. Findings on power analysis and sample size estimation on logrank test are applied to two real examples: one is the Veterans' Administration Lung Cancer study; and the other is the data from a placebo controlled trial of gamma interferon in chronic granulotomous disease.
- Full Text:
- Date Issued: 2013
A small town in the early apartheid era: A history of Grahamstown 1946-1960 focusing on "White English" perspectives.
- Lancaster, Rupert Giles Swinburne
- Authors: Lancaster, Rupert Giles Swinburne
- Date: 2013
- Subjects: Grahamstown (South Africa) -- History -- 20th Century , Grahamstown (South Africa) -- Politics and government -- 20th century , Grahamstown (South Africa) -- Social conditions -- 20th Century , Grahamstown (South Africa) -- Economic conditions -- 20th Century , Grahamstown (South Africa) -- Social life and customs -- 20th Century , Apartheid -- South Africa , Whites -- South Africa -- Grahamstown
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2612 , http://hdl.handle.net/10962/d1013161
- Description: This Thesis examines the socio-political perceptions of Grahamstown, a small South African City, during the period 1946 to 1960. The ‘White English’ population of Grahamstown is the specific focus, as it formed the dominant social group during the period and consequently provided the majority of information for this work. During this period the majority of Grahamstowns ‘White English’ population thought of their City as holding many attractive features and experiences despite the slum-conditions and poverty that were rife in the Locations. During the British Royal Familie’s tour of the Union of South Africa in 1947, Grahamstown was one of the Cities visited. The loyalty that Grahamstown’s ‘White English’ citizens felt towards the Royal Family and the United Kingdom is explored in connection with the regard that ‘White English’ Grahamstown held for the 1820 Settlers. To highlight the Grahamstown City Council’s activities during this period five events are analysed: The Grahamstown Financial Crisis, The Grahamstown Housing Crisis, The Beer Hall Debate, The establishment of a Tuberculosis Hospital and the granting of Full University Status to Rhodes University College. It is shown, with regard to the politics of the period, that ‘White English’ Grahamstown, unequivocally supported the United Party and were vocally anti-Nationalist. The implementation of Apartheid policies within Grahamstown is explored, with specific focus placed upon the Group Areas Act. Finally the anti-republican sentiment espoused by ‘White English’ Grahamstown is reviewed.
- Full Text:
- Date Issued: 2013
- Authors: Lancaster, Rupert Giles Swinburne
- Date: 2013
- Subjects: Grahamstown (South Africa) -- History -- 20th Century , Grahamstown (South Africa) -- Politics and government -- 20th century , Grahamstown (South Africa) -- Social conditions -- 20th Century , Grahamstown (South Africa) -- Economic conditions -- 20th Century , Grahamstown (South Africa) -- Social life and customs -- 20th Century , Apartheid -- South Africa , Whites -- South Africa -- Grahamstown
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2612 , http://hdl.handle.net/10962/d1013161
- Description: This Thesis examines the socio-political perceptions of Grahamstown, a small South African City, during the period 1946 to 1960. The ‘White English’ population of Grahamstown is the specific focus, as it formed the dominant social group during the period and consequently provided the majority of information for this work. During this period the majority of Grahamstowns ‘White English’ population thought of their City as holding many attractive features and experiences despite the slum-conditions and poverty that were rife in the Locations. During the British Royal Familie’s tour of the Union of South Africa in 1947, Grahamstown was one of the Cities visited. The loyalty that Grahamstown’s ‘White English’ citizens felt towards the Royal Family and the United Kingdom is explored in connection with the regard that ‘White English’ Grahamstown held for the 1820 Settlers. To highlight the Grahamstown City Council’s activities during this period five events are analysed: The Grahamstown Financial Crisis, The Grahamstown Housing Crisis, The Beer Hall Debate, The establishment of a Tuberculosis Hospital and the granting of Full University Status to Rhodes University College. It is shown, with regard to the politics of the period, that ‘White English’ Grahamstown, unequivocally supported the United Party and were vocally anti-Nationalist. The implementation of Apartheid policies within Grahamstown is explored, with specific focus placed upon the Group Areas Act. Finally the anti-republican sentiment espoused by ‘White English’ Grahamstown is reviewed.
- Full Text:
- Date Issued: 2013
A social realist analysis of learner agency and access to education : the case of Grade 11 learners in public secondary schools in the Makana District, Eastern Cape
- Authors: Namakula, Halima
- Date: 2013
- Subjects: Active learning -- Research -- South Africa -- Eastern Cape Educational equalization -- Research -- South Africa -- Eastern Cape Student-centered learning -- Research -- South Africa -- Eastern Cape Competency-based education -- South Africa -- Eastern Cape Education, Secondary -- Research -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1404 , http://hdl.handle.net/10962/d1001954
- Description: The South African government has shown enormous commitment to the achievement of “Education for All” (EFA) through its policies premised on the right to basic education for all which is enshrined in the constitution. Central to the South African constitution, is a fundamental right of all citizens to basic education, equity, redress, and the improvement of quality of schooling. Further, pro-poor funding policies such as school fee exemptions, social grants and, most recently, the designation of 60% of all schools as ‘no fee’ schools, have made it possible for even the poorest learners to attend school. This has affirmed South Africa’s commitment to the achievement of the Millennium Development Goals (MDGs) by 2015. In light of Notwithstanding the progress made in South Africa in universalising education, there are concerns regarding learner access to quality education, especially in poor provinces such as the Eastern Cape where this study is situated. Thus, the purpose of this study is to further understanding of the interface between learners’ agency and access to education in two township public high schools in Makana District in the Eastern Cape Province. In doing so, the research addresses the current under-representation in the literature of the voices of learners about their experiences of access to education. Drawing on Margaret Archer’s social realist approach to the relationship between structure and agency, the study explores learner agency with the aim of understanding how learners exercise their agency as they struggle to negotiate and overcome difficult and challenging circumstances in order to access education. The data collection was carried out during the academic year 2011, using a qualitative case study approach. Multiple methods of data collection were used. First, data was collected through questionnaires administered to learners. This questionnaire asked for basic information about the schools (for example, subjects, resources and teachers ), parents ( their education, employment, qualification etc.) and learners’ aspirations (their role model; where they see themselves in 5 years; which university they would like to attend; and what they would like to become in future). Secondly, observation method was used to collect data that would inform an assessment of the school’s structure and cultural practices and the impact these have on learners’ access to education. The focus here was also on classroom interaction between learners and teachers, as well as classroom participation, participation in extra-mural activities and voluntary activities, and interaction with peers and others in a variety of school settings. Thirdly, interviews with learners, educators, principals, and parents were used to provide insight about how participants construct their social worlds. In this study the primary data was collected through semi-structured individual and focus group interview. And finally, document analysis was used to analyse the attendance and performance of learners on attendance registers. Findings from this research have enabled new themes and areas for reflection about learner agency to emerge. These themes reflect current and ongoing constraints and enablements towards learners’ educational experiences. In particular, themes such as the following have surfaced: learners changing their lives; the desire to succeed; shaping the future; the value of education; family pride; aspirations and careers. This study addressed these developments by examining agency as temporally located reflexive deliberations of learners upon their future goals and present social environment. This allowed for the identification of individuals’ future goals in relation to access to education and the strategies that they intend to pursue to achieve them, in relation to their personal and social contexts. The findings show the choices and decisions learners are prepared to make and the strategies they use as they engage with socio-cultural environments. Archer’s nuanced approach to agency and structure offers tools to help make sense of learners’ equally nuanced way of engaging with various social structures and making considered decisions about their social environment. Key findings of this research suggest that despite the constraining social structures in their homes, communities and schools, learners make decisions and choices that enable them to navigate social contexts to their advantage. Put differently, for learners, social structures provided the impetus for the projects they created, and to this extent enabled rather than constrained their courses of action.
- Full Text:
- Date Issued: 2013
- Authors: Namakula, Halima
- Date: 2013
- Subjects: Active learning -- Research -- South Africa -- Eastern Cape Educational equalization -- Research -- South Africa -- Eastern Cape Student-centered learning -- Research -- South Africa -- Eastern Cape Competency-based education -- South Africa -- Eastern Cape Education, Secondary -- Research -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1404 , http://hdl.handle.net/10962/d1001954
- Description: The South African government has shown enormous commitment to the achievement of “Education for All” (EFA) through its policies premised on the right to basic education for all which is enshrined in the constitution. Central to the South African constitution, is a fundamental right of all citizens to basic education, equity, redress, and the improvement of quality of schooling. Further, pro-poor funding policies such as school fee exemptions, social grants and, most recently, the designation of 60% of all schools as ‘no fee’ schools, have made it possible for even the poorest learners to attend school. This has affirmed South Africa’s commitment to the achievement of the Millennium Development Goals (MDGs) by 2015. In light of Notwithstanding the progress made in South Africa in universalising education, there are concerns regarding learner access to quality education, especially in poor provinces such as the Eastern Cape where this study is situated. Thus, the purpose of this study is to further understanding of the interface between learners’ agency and access to education in two township public high schools in Makana District in the Eastern Cape Province. In doing so, the research addresses the current under-representation in the literature of the voices of learners about their experiences of access to education. Drawing on Margaret Archer’s social realist approach to the relationship between structure and agency, the study explores learner agency with the aim of understanding how learners exercise their agency as they struggle to negotiate and overcome difficult and challenging circumstances in order to access education. The data collection was carried out during the academic year 2011, using a qualitative case study approach. Multiple methods of data collection were used. First, data was collected through questionnaires administered to learners. This questionnaire asked for basic information about the schools (for example, subjects, resources and teachers ), parents ( their education, employment, qualification etc.) and learners’ aspirations (their role model; where they see themselves in 5 years; which university they would like to attend; and what they would like to become in future). Secondly, observation method was used to collect data that would inform an assessment of the school’s structure and cultural practices and the impact these have on learners’ access to education. The focus here was also on classroom interaction between learners and teachers, as well as classroom participation, participation in extra-mural activities and voluntary activities, and interaction with peers and others in a variety of school settings. Thirdly, interviews with learners, educators, principals, and parents were used to provide insight about how participants construct their social worlds. In this study the primary data was collected through semi-structured individual and focus group interview. And finally, document analysis was used to analyse the attendance and performance of learners on attendance registers. Findings from this research have enabled new themes and areas for reflection about learner agency to emerge. These themes reflect current and ongoing constraints and enablements towards learners’ educational experiences. In particular, themes such as the following have surfaced: learners changing their lives; the desire to succeed; shaping the future; the value of education; family pride; aspirations and careers. This study addressed these developments by examining agency as temporally located reflexive deliberations of learners upon their future goals and present social environment. This allowed for the identification of individuals’ future goals in relation to access to education and the strategies that they intend to pursue to achieve them, in relation to their personal and social contexts. The findings show the choices and decisions learners are prepared to make and the strategies they use as they engage with socio-cultural environments. Archer’s nuanced approach to agency and structure offers tools to help make sense of learners’ equally nuanced way of engaging with various social structures and making considered decisions about their social environment. Key findings of this research suggest that despite the constraining social structures in their homes, communities and schools, learners make decisions and choices that enable them to navigate social contexts to their advantage. Put differently, for learners, social structures provided the impetus for the projects they created, and to this extent enabled rather than constrained their courses of action.
- Full Text:
- Date Issued: 2013
A standardised protocol for roadkill detection and the determinants of roadkill in the greater Mapungubwe Transfrontier Conservation Area, Limpopo Province, South Africa
- Authors: Collinson, Wendy Jane
- Date: 2013
- Subjects: Roadkill -- South Africa -- Mapungubwe Site , Traffic safety and wildlife -- South Africa -- Mapungubwe Site
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5606 , http://hdl.handle.net/10962/d1002056 , Roadkill -- South Africa -- Mapungubwe Site , Traffic safety and wildlife -- South Africa -- Mapungubwe Site
- Description: Despite evidence suggesting that road traffic is a major threat to biodiversity loss, very little is known about its actual impact on wildlife populations in South Africa. Globally, road density and traffic volumes are increasing, and although huge budgets are devoted to the construction and upgrading of roads, there is little or no allocation to mitigation measures for protecting fauna in most countries, particularly Africa. Further, no global standardised protocol exists for the rapid assessment of roadkill or the most economical and efficient approach for assessing roadkill rates. Using vehicle field trials, the reliability of detecting artificially deployed roadkill was assessed. Roadkill detection rates decreased significantly at speeds >50 km/h and were also significantly influenced by light conditions (i.e. detection success was greater when the sun was high) and the position of the roadkill on the road (i.e. smaller roadkill on verges were often missed). These results suggest that roadkill sampling was most effective between 1.5 hours after dawn and 1.5 hours before dusk and that driving at slower speeds (<50 km.h⁻ₑ) was required to detect roadkill. This protocol was implemented across three ecological seasons on a 100 km paved road and a 20 km unpaved road in the Greater Mapungubwe Transfrontier Conservation Area, Limpopo Province, South Africa. Driven daily over a 120-day period (three periods consisting each of 40 days), a total of 1,027 roadkill were recorded. These comprised 162 species from all terrestrial vertebrate groups with birds being the most commonly encountered roadkill (50% of all incidents). The high numbers of vertebrates identified as roadkill suggests that road traffic could have potentially unsustainable impacts on wildlife populations and hence the biodiversity of the area. Seventeen variables were identified as possible determinants of roadkill occurrence with season, rainfall, minimum and maximum temperature, habitat type, grass height, grass density, fence type and vehicle type significantly influencing roadkill numbers. Significantly more roadkill were detected on the paved road (9.91/100km) than on the unpaved road (1.8/100km) probably because of greater traffic volumes and the increased speed that vehicles travelled on the paved road. Warmer temperatures and increased rainfall in the preceding 24 hours also increased road mortality numbers as animals tended to become more active during these times. Interestingly, more roadkill was detected in open roadside habitats compared to dense roadside habitats on both the paved and unpaved roads and when grass on the roadside verge was of intermediate height. Open habitat possibly may provide a natural corridor for wildlife which ultimately end up on the road. Roadkill numbers increased when certain other physical barriers, such as cattle fences, were present, probably because these barriers were more penetrable than electric fencing. A series of mitigation measures are proposed to reduce the impacts of roads on wildlife in South Africa. These mitigation measures highlight the need to address the balance between the development of a country’s transport infrastructure and the conservation of its fauna. It is important that research on the impacts of roads becomes standardised to enable robust statistical comparisons which will provide a greater understanding of the potential threats to vertebrate biodiversity
- Full Text:
- Date Issued: 2013
- Authors: Collinson, Wendy Jane
- Date: 2013
- Subjects: Roadkill -- South Africa -- Mapungubwe Site , Traffic safety and wildlife -- South Africa -- Mapungubwe Site
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5606 , http://hdl.handle.net/10962/d1002056 , Roadkill -- South Africa -- Mapungubwe Site , Traffic safety and wildlife -- South Africa -- Mapungubwe Site
- Description: Despite evidence suggesting that road traffic is a major threat to biodiversity loss, very little is known about its actual impact on wildlife populations in South Africa. Globally, road density and traffic volumes are increasing, and although huge budgets are devoted to the construction and upgrading of roads, there is little or no allocation to mitigation measures for protecting fauna in most countries, particularly Africa. Further, no global standardised protocol exists for the rapid assessment of roadkill or the most economical and efficient approach for assessing roadkill rates. Using vehicle field trials, the reliability of detecting artificially deployed roadkill was assessed. Roadkill detection rates decreased significantly at speeds >50 km/h and were also significantly influenced by light conditions (i.e. detection success was greater when the sun was high) and the position of the roadkill on the road (i.e. smaller roadkill on verges were often missed). These results suggest that roadkill sampling was most effective between 1.5 hours after dawn and 1.5 hours before dusk and that driving at slower speeds (<50 km.h⁻ₑ) was required to detect roadkill. This protocol was implemented across three ecological seasons on a 100 km paved road and a 20 km unpaved road in the Greater Mapungubwe Transfrontier Conservation Area, Limpopo Province, South Africa. Driven daily over a 120-day period (three periods consisting each of 40 days), a total of 1,027 roadkill were recorded. These comprised 162 species from all terrestrial vertebrate groups with birds being the most commonly encountered roadkill (50% of all incidents). The high numbers of vertebrates identified as roadkill suggests that road traffic could have potentially unsustainable impacts on wildlife populations and hence the biodiversity of the area. Seventeen variables were identified as possible determinants of roadkill occurrence with season, rainfall, minimum and maximum temperature, habitat type, grass height, grass density, fence type and vehicle type significantly influencing roadkill numbers. Significantly more roadkill were detected on the paved road (9.91/100km) than on the unpaved road (1.8/100km) probably because of greater traffic volumes and the increased speed that vehicles travelled on the paved road. Warmer temperatures and increased rainfall in the preceding 24 hours also increased road mortality numbers as animals tended to become more active during these times. Interestingly, more roadkill was detected in open roadside habitats compared to dense roadside habitats on both the paved and unpaved roads and when grass on the roadside verge was of intermediate height. Open habitat possibly may provide a natural corridor for wildlife which ultimately end up on the road. Roadkill numbers increased when certain other physical barriers, such as cattle fences, were present, probably because these barriers were more penetrable than electric fencing. A series of mitigation measures are proposed to reduce the impacts of roads on wildlife in South Africa. These mitigation measures highlight the need to address the balance between the development of a country’s transport infrastructure and the conservation of its fauna. It is important that research on the impacts of roads becomes standardised to enable robust statistical comparisons which will provide a greater understanding of the potential threats to vertebrate biodiversity
- Full Text:
- Date Issued: 2013
A strategic analysis of Capitec Bank Limited within the South African banking industry
- Authors: De Lange, Michael Coenraad
- Date: 2013
- Subjects: Banks and banking -- South Africa , Creative ability in business -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8835 , http://hdl.handle.net/10948/d1019932
- Description: The South African banking industry is well regulated and oligopolistic by nature. The financial sector in South Africa is of a world class standard, comparing favourably to that of developed countries i.e. United States of America and Great Britian, and developing economies such as the BRIC (Brazil, Russia, India and China) countries. The South African financial sector possesses the critical elements to exhibit good growth and sustainable profitabiblity. Capitec Bank Limited revolutionised the banking industry by providing a simplified and cost effective banking solution targeting the masses i.e. the "unbanked" population of South Africa. The company pursued a disruptive innovation strategy by targeting the lower income earning segment of the market i.e. individuals who are employed but do not have bank account. Capite's strategic approach and business model were designed around innovation and technology, exploiting a previously untapped market that no other competitor targeted. This approach has resulted in the bank's phenomenal growth over the past decade and most notably has seen Capitec's return on equity (ROE) increase from 12 percent to 26 percent and advances to costomers increase from R116 million to 16 billion. This has set precedent which the big four banks, namely ABSA, First National Bank, Standard Bank and Nedbank, could not match. Contributing to Capitec's success and the basis on which its business model is built are four pillars: accessibilty, simplicity, affordability and personalised service. These pillars have created a compatitive advantage resulting in the bid four banks playing catch up. A strategic analysis of Capitec bank was conducted in order to assess the feasibility of expansion by the bank into Africa. The conclusion of the study indicated that it was indeed a viable option for Capitec to expand its footprint across borders into Africa through mergers with banks exhibiting a similar business model, for example Equity Bank based in Kenya.
- Full Text:
- Date Issued: 2013
- Authors: De Lange, Michael Coenraad
- Date: 2013
- Subjects: Banks and banking -- South Africa , Creative ability in business -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8835 , http://hdl.handle.net/10948/d1019932
- Description: The South African banking industry is well regulated and oligopolistic by nature. The financial sector in South Africa is of a world class standard, comparing favourably to that of developed countries i.e. United States of America and Great Britian, and developing economies such as the BRIC (Brazil, Russia, India and China) countries. The South African financial sector possesses the critical elements to exhibit good growth and sustainable profitabiblity. Capitec Bank Limited revolutionised the banking industry by providing a simplified and cost effective banking solution targeting the masses i.e. the "unbanked" population of South Africa. The company pursued a disruptive innovation strategy by targeting the lower income earning segment of the market i.e. individuals who are employed but do not have bank account. Capite's strategic approach and business model were designed around innovation and technology, exploiting a previously untapped market that no other competitor targeted. This approach has resulted in the bank's phenomenal growth over the past decade and most notably has seen Capitec's return on equity (ROE) increase from 12 percent to 26 percent and advances to costomers increase from R116 million to 16 billion. This has set precedent which the big four banks, namely ABSA, First National Bank, Standard Bank and Nedbank, could not match. Contributing to Capitec's success and the basis on which its business model is built are four pillars: accessibilty, simplicity, affordability and personalised service. These pillars have created a compatitive advantage resulting in the bid four banks playing catch up. A strategic analysis of Capitec bank was conducted in order to assess the feasibility of expansion by the bank into Africa. The conclusion of the study indicated that it was indeed a viable option for Capitec to expand its footprint across borders into Africa through mergers with banks exhibiting a similar business model, for example Equity Bank based in Kenya.
- Full Text:
- Date Issued: 2013
A strategy to make ICT accessible in rural Zambia: a case study of Macha
- Authors: Van Stam, Gertjan
- Date: 2013
- Subjects: Communication in rural development -- Zambia , Communication and technology -- Zambia
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9830
- Description: The problem discussed in this dissertation is to gather evidence of good practice and derive strategy for the development of ICT access in rural Zambia. Access to ICT services is important, also in rural areas of Africa. The challenges are many. There is a distinct void in tangible descriptions of the realities of ICT Access in rural areas or actionable guidelines for practitioners. This study involves a case study in the rural areas of Zambia. It does so through ethnography involving 10 years of observation of aspects of ICT access in rural Macha, Zambia. In this community, emerging from an articulated vision, ICT access in the form of the Internet arrived in 2004. Macha Works with its ICT unit LinkNet provides the basis for this interpretive approach from within the rural cultural setting. The purpose of the study is to benefit the local rural community, addressing the fundamentals of reality to add to the body of knowledge. The study involves cross cultural interaction and takes a trans-disciplinary view on science. It involves Participative Action Learning and Research aimed at recognising the complex adaptive systems while being aligned with the ethics of the rural African environment. Emphasis is on the needs of the community, rather than of the individual utilising empirical evidence. The good practices in Macha that inform strategy to make ICT accessible in rural areas are: engaging the community, building relationships; workforce development, unlocking productivity; thought leadership, establishing authority.
- Full Text:
- Date Issued: 2013
- Authors: Van Stam, Gertjan
- Date: 2013
- Subjects: Communication in rural development -- Zambia , Communication and technology -- Zambia
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9830
- Description: The problem discussed in this dissertation is to gather evidence of good practice and derive strategy for the development of ICT access in rural Zambia. Access to ICT services is important, also in rural areas of Africa. The challenges are many. There is a distinct void in tangible descriptions of the realities of ICT Access in rural areas or actionable guidelines for practitioners. This study involves a case study in the rural areas of Zambia. It does so through ethnography involving 10 years of observation of aspects of ICT access in rural Macha, Zambia. In this community, emerging from an articulated vision, ICT access in the form of the Internet arrived in 2004. Macha Works with its ICT unit LinkNet provides the basis for this interpretive approach from within the rural cultural setting. The purpose of the study is to benefit the local rural community, addressing the fundamentals of reality to add to the body of knowledge. The study involves cross cultural interaction and takes a trans-disciplinary view on science. It involves Participative Action Learning and Research aimed at recognising the complex adaptive systems while being aligned with the ethics of the rural African environment. Emphasis is on the needs of the community, rather than of the individual utilising empirical evidence. The good practices in Macha that inform strategy to make ICT accessible in rural areas are: engaging the community, building relationships; workforce development, unlocking productivity; thought leadership, establishing authority.
- Full Text:
- Date Issued: 2013
A study assessing the functioning of local economic development units in local municipalities within the Chris Hani District
- Authors: Madyibi, Mongezi
- Date: 2013
- Subjects: Rural development -- South Africa -- Eastern Cape , Municipal government -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9168 , http://hdl.handle.net/10948/d1020102
- Description: The state has a task to find solutions to alleviate poverty and LED has been identified as part of the solution. The municipalities are mandated with Local Economic Development and that function has been located within an LED Unit. Based on the above-mentioned issues it was regarded as fitting to conduct a study that would identify challenges contributing to the effective functioning of LED units with specific reference to Lukhanji and Intsika Yethu Local Municipalities in the Chris Hani District. Furthermore, the study will attempt to suggest recommendations to address the shortcomings. The sampling method used for this study was purposive sampling. Data was gathered through structured questionnaires administered to 15 LED officials from the Chris Hani District Municipality and the Lukhanji and Intsika Yethu Local Municipalities. Relevant literature that focuses on Local Economic Development has been reviewed. Various recommendations have been made on the findings of the study. It has emerged during the study that the municipalities within the CHDM perceive their role as that of being Implementer of LED policy instead of playing an enabling role as outlined in the LED Legislative Framework. There is a political will to support LED implementation at local municipalities within the CHDM. In the implementation of LED the LED units within the CHDM are faced with the following challenges: - Insufficient cooperation among stakeholders - Inadequate resources - Political dimensions - Poor LED planning, and - Inadequate LED training.
- Full Text:
- Date Issued: 2013
- Authors: Madyibi, Mongezi
- Date: 2013
- Subjects: Rural development -- South Africa -- Eastern Cape , Municipal government -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9168 , http://hdl.handle.net/10948/d1020102
- Description: The state has a task to find solutions to alleviate poverty and LED has been identified as part of the solution. The municipalities are mandated with Local Economic Development and that function has been located within an LED Unit. Based on the above-mentioned issues it was regarded as fitting to conduct a study that would identify challenges contributing to the effective functioning of LED units with specific reference to Lukhanji and Intsika Yethu Local Municipalities in the Chris Hani District. Furthermore, the study will attempt to suggest recommendations to address the shortcomings. The sampling method used for this study was purposive sampling. Data was gathered through structured questionnaires administered to 15 LED officials from the Chris Hani District Municipality and the Lukhanji and Intsika Yethu Local Municipalities. Relevant literature that focuses on Local Economic Development has been reviewed. Various recommendations have been made on the findings of the study. It has emerged during the study that the municipalities within the CHDM perceive their role as that of being Implementer of LED policy instead of playing an enabling role as outlined in the LED Legislative Framework. There is a political will to support LED implementation at local municipalities within the CHDM. In the implementation of LED the LED units within the CHDM are faced with the following challenges: - Insufficient cooperation among stakeholders - Inadequate resources - Political dimensions - Poor LED planning, and - Inadequate LED training.
- Full Text:
- Date Issued: 2013
A study of electrospun nanofibers and diatomaceous earth materials for the extraction of alkaloids, flavonoids and aromatic amines in various matrices
- Mothibedi, Kediemetse (Kedimetse)
- Authors: Mothibedi, Kediemetse (Kedimetse)
- Date: 2013 , 2013-04-07
- Subjects: Nanofibers , Electrospinning , Sorbents , Extraction (Chemistry) , Alkaloids , Flavonoids , Amines , Matrices , Goldenseal , Ginkgo , Dyes and dyeing -- Chemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4288 , http://hdl.handle.net/10962/d1003052 , Nanofibers , Electrospinning , Sorbents , Extraction (Chemistry) , Alkaloids , Flavonoids , Amines , Matrices , Goldenseal , Ginkgo , Dyes and dyeing -- Chemistry
- Description: The thesis explored the use of different sorbent materials in solid phase extraction method development. The methods included the use of the polymeric Agilent Bond Elut Plexa solid phase extraction and electrospun polymer-silica composite sorbents for clean-up and preconcentration. Sample clean-up for alkaloids (hydrastine and berberine) in goldenseal, Hydrastis canadensis and flavonoids (quercetin, kaempferol and isorhamnetin) in Ginkgo biloba was achieved using Bond Elut Plexa SPE sorbent. Clean-up of flavonoids in Ginkgo biloba was also achieved using electrospun polymer-silica composite (polystyrene-silica, polyacrylonitrile-silica and nylon 6-silica) sorbents. All analysis of flavonoids and alkaloids was carried out using an Agilent 1200 Series HPLC coupled with a diode array detector. Good peak separation was achieved in less than 6 min employing an Agilent ZORBAX Eclipse Plus C18 column (4.6 x 75 mm, 3.5 μm) at 35⁰C. The mobile phases employed were 0.1% phosphoric acid/methanol gradient and 0.5% phosphoric acid/methanol (40:60) for alkaloids and flavonoids respectively. The calibration curves exhibited linearity up to 120 μg mL⁻¹ with correlation coefficients of more than 0.9980. The recoveries ranged from 73-109% with relative standard deviation of less than 5% for all analytes. Agilent Chem Elut supported liquid extraction was employed for the development of a sample preparation method for the determination of 24 banned aromatic amines from azo dyes in textile following the EU standard method EN 14362-1:2003 (E) and the Chinese standard method GB/T 17592-2006. The supported liquid extraction was effective in the extraction of the aromatic amines from textile (cotton, wool and polyester/cotton [80%:20%]). Most of the recoveries obtained were conforming to the minimum requirements set in the EN 14362-1:2003 (E) standard method and the relative standard deviations were less than 15%. Good peak separation was obtained within 70 min run time using the Agilent Zorbax SB-Phenyl column (4.6 mm x 250 mm, 5-micron) or the Agilent DB-35 MS (J & W) (30 m x 0.25 mm, 0.25 μm film thickness. It was demonstrated that the polymeric Agilent Bond Elut Plexa, electrospun nanofibers and diatomaceous earth were effective in extraction of alkaloids, flavonoids and aromatic amines in different matrices. The developed methods were simple, rapid and reproducible.
- Full Text:
- Date Issued: 2013
- Authors: Mothibedi, Kediemetse (Kedimetse)
- Date: 2013 , 2013-04-07
- Subjects: Nanofibers , Electrospinning , Sorbents , Extraction (Chemistry) , Alkaloids , Flavonoids , Amines , Matrices , Goldenseal , Ginkgo , Dyes and dyeing -- Chemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4288 , http://hdl.handle.net/10962/d1003052 , Nanofibers , Electrospinning , Sorbents , Extraction (Chemistry) , Alkaloids , Flavonoids , Amines , Matrices , Goldenseal , Ginkgo , Dyes and dyeing -- Chemistry
- Description: The thesis explored the use of different sorbent materials in solid phase extraction method development. The methods included the use of the polymeric Agilent Bond Elut Plexa solid phase extraction and electrospun polymer-silica composite sorbents for clean-up and preconcentration. Sample clean-up for alkaloids (hydrastine and berberine) in goldenseal, Hydrastis canadensis and flavonoids (quercetin, kaempferol and isorhamnetin) in Ginkgo biloba was achieved using Bond Elut Plexa SPE sorbent. Clean-up of flavonoids in Ginkgo biloba was also achieved using electrospun polymer-silica composite (polystyrene-silica, polyacrylonitrile-silica and nylon 6-silica) sorbents. All analysis of flavonoids and alkaloids was carried out using an Agilent 1200 Series HPLC coupled with a diode array detector. Good peak separation was achieved in less than 6 min employing an Agilent ZORBAX Eclipse Plus C18 column (4.6 x 75 mm, 3.5 μm) at 35⁰C. The mobile phases employed were 0.1% phosphoric acid/methanol gradient and 0.5% phosphoric acid/methanol (40:60) for alkaloids and flavonoids respectively. The calibration curves exhibited linearity up to 120 μg mL⁻¹ with correlation coefficients of more than 0.9980. The recoveries ranged from 73-109% with relative standard deviation of less than 5% for all analytes. Agilent Chem Elut supported liquid extraction was employed for the development of a sample preparation method for the determination of 24 banned aromatic amines from azo dyes in textile following the EU standard method EN 14362-1:2003 (E) and the Chinese standard method GB/T 17592-2006. The supported liquid extraction was effective in the extraction of the aromatic amines from textile (cotton, wool and polyester/cotton [80%:20%]). Most of the recoveries obtained were conforming to the minimum requirements set in the EN 14362-1:2003 (E) standard method and the relative standard deviations were less than 15%. Good peak separation was obtained within 70 min run time using the Agilent Zorbax SB-Phenyl column (4.6 mm x 250 mm, 5-micron) or the Agilent DB-35 MS (J & W) (30 m x 0.25 mm, 0.25 μm film thickness. It was demonstrated that the polymeric Agilent Bond Elut Plexa, electrospun nanofibers and diatomaceous earth were effective in extraction of alkaloids, flavonoids and aromatic amines in different matrices. The developed methods were simple, rapid and reproducible.
- Full Text:
- Date Issued: 2013