Systematics and biogeography of Mesobola brevianalis (Boulenger, 1908) (Teleostei: Cyprinidae)
- Authors: Riddin, Megan Amy
- Date: 2015
- Subjects: River sardine , Molecular evolution
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5930 , http://hdl.handle.net/10962/d1017808
- Description: The accurate identification of fish species, their life stages and their products enables the correct management of fisheries, research and conservation of distinctive populations for long-term survival and sustainability. Mesobola brevianalis Boulenger, 1908, commonly known as the river sardine, is found in many river systems in southern Africa. Because it exhibits widely separated populations showing subtle differences, particularly in colour, it is thought that there may be cryptic species involved. Standard phylogenetic techniques using three genetic markers (mitochondrial COI, nuclear protein RAG1 and nuclear ribosomal 28S rRNA), enabled the building of phylogenetic networks for M. brevianalis and some outgroup species. Consistent patterns of relationship were seen with 28S supporting monophyly. COI and RAG1 suggested that populations that are currently identified as M. brevianalis in fact represent several species. There was sufficiently strong support for the evolutionary independence of the M. brevianalis populations from the Rovuma, Kunene and Orange River Systems to consider them as independent species. The independence of the genus Mesobola was brought into question because Engraulicypris sardella and Rastrineobola argentea were placed within it phylogenetically.Morphometric methods in the form of multivariate truss network analyses, were performed to locate morphological markers for populations. There was little to no variation among most of the populations synonymized under M. brevianalis. Furthermore, neither latitude nor longitude had an effect on the morphological characters that might be linked to functional evolution. A molecular clock analysis of COI data was used to calibrate a paleobiogeographical model which entailed a divergence of lineages starting from an easterly reigning Paleo-Congo Basin, via a hypothetical Paleo-Kalahari Lake that was fragmented by a series of uplifts and drying events beginning ~65 million years ago. Complete evidence supported the synonymisation of the genera Engraulicypris and Mesobola, the resurrection of the species name gariepinus for the Orange River Systempopulation, and the description of two new species: E. ngalala from the Rovuma River System and E. howesi from the Kunene River System.
- Full Text:
- Date Issued: 2015
- Authors: Riddin, Megan Amy
- Date: 2015
- Subjects: River sardine , Molecular evolution
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5930 , http://hdl.handle.net/10962/d1017808
- Description: The accurate identification of fish species, their life stages and their products enables the correct management of fisheries, research and conservation of distinctive populations for long-term survival and sustainability. Mesobola brevianalis Boulenger, 1908, commonly known as the river sardine, is found in many river systems in southern Africa. Because it exhibits widely separated populations showing subtle differences, particularly in colour, it is thought that there may be cryptic species involved. Standard phylogenetic techniques using three genetic markers (mitochondrial COI, nuclear protein RAG1 and nuclear ribosomal 28S rRNA), enabled the building of phylogenetic networks for M. brevianalis and some outgroup species. Consistent patterns of relationship were seen with 28S supporting monophyly. COI and RAG1 suggested that populations that are currently identified as M. brevianalis in fact represent several species. There was sufficiently strong support for the evolutionary independence of the M. brevianalis populations from the Rovuma, Kunene and Orange River Systems to consider them as independent species. The independence of the genus Mesobola was brought into question because Engraulicypris sardella and Rastrineobola argentea were placed within it phylogenetically.Morphometric methods in the form of multivariate truss network analyses, were performed to locate morphological markers for populations. There was little to no variation among most of the populations synonymized under M. brevianalis. Furthermore, neither latitude nor longitude had an effect on the morphological characters that might be linked to functional evolution. A molecular clock analysis of COI data was used to calibrate a paleobiogeographical model which entailed a divergence of lineages starting from an easterly reigning Paleo-Congo Basin, via a hypothetical Paleo-Kalahari Lake that was fragmented by a series of uplifts and drying events beginning ~65 million years ago. Complete evidence supported the synonymisation of the genera Engraulicypris and Mesobola, the resurrection of the species name gariepinus for the Orange River Systempopulation, and the description of two new species: E. ngalala from the Rovuma River System and E. howesi from the Kunene River System.
- Full Text:
- Date Issued: 2015
An assessment of the effectiveness of school governing bodies in implementing school policy: a case study of Xengxe Junior Secondary School in King William's Town district
- Authors: Ngcuka, Zimkhita Zenith
- Date: 2015
- Subjects: School management and organization -- South Africa -- Eastern Cape School administrators -- South Africa -- Eastern Cape School boards -- South Africa -- Eastern Cape Education -- Parent participation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Admin
- Identifier: http://hdl.handle.net/10353/1719 , vital:27552
- Description: This study looks at School Governing Bodies and its role and their effectiveness in school management. In terms of the South African Schools Act, all schools are now required to have School Government Bodies to compliment the formal school administrative structures. The research looks at how these bodies have functioned in a rural context. The empirical evidence, supported by other research evidence show that even though these bodies are sometimes dutifully constituted in schools, their functionality and effectiveness remains limited due to a number of reasons. This research study has shown that the ineffectiveness of SGBs in a rural context is attributed to that following key issues- firstly, there is limited knowledge of the functions of SGB, which can be traced to the lack of training on the body member; secondly, there is a inadequate framework in many public schools to engage with the SGBs; and finally there is a lack of school resources to make effective use of these bodies.
- Full Text:
- Date Issued: 2015
- Authors: Ngcuka, Zimkhita Zenith
- Date: 2015
- Subjects: School management and organization -- South Africa -- Eastern Cape School administrators -- South Africa -- Eastern Cape School boards -- South Africa -- Eastern Cape Education -- Parent participation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Admin
- Identifier: http://hdl.handle.net/10353/1719 , vital:27552
- Description: This study looks at School Governing Bodies and its role and their effectiveness in school management. In terms of the South African Schools Act, all schools are now required to have School Government Bodies to compliment the formal school administrative structures. The research looks at how these bodies have functioned in a rural context. The empirical evidence, supported by other research evidence show that even though these bodies are sometimes dutifully constituted in schools, their functionality and effectiveness remains limited due to a number of reasons. This research study has shown that the ineffectiveness of SGBs in a rural context is attributed to that following key issues- firstly, there is limited knowledge of the functions of SGB, which can be traced to the lack of training on the body member; secondly, there is a inadequate framework in many public schools to engage with the SGBs; and finally there is a lack of school resources to make effective use of these bodies.
- Full Text:
- Date Issued: 2015
An assessment of the Auditor General's contribution to good governance in the public service: a case of the Eastern Cape provincial administration
- Authors: Khashe, Sivuyile Churchill
- Date: 2015
- Subjects: Auditing -- South Africa -- Eastern Cape Civil service -- South Africa -- Eastern Cape Public administration -- South Africa -- Eastern Cape Political corruption -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Admin
- Identifier: http://hdl.handle.net/10353/1675 , vital:27544
- Description: The Office of the Auditor -General’s role is by no means minor, for it plays a major role in curbing corruption and acts as a ‘’watchdog’’ of the nation over public funds. Amidst high mismanagement and misuse of public resources, as well as corruption, especially in developing countries, the major question one asks is how effective the Auditor -General can be in ensuring good governance within state departments so as to improve service delivery. The gaps between approved budgets and the realisation of policy and development goals stand among key governance challenges in many developing countries. Supreme Audit Institutions (SAIs) play an important role in holding governments to account. However, many SAIs including AGSA face serious challenges when trying to evaluate the expenditures and performance of government agencies. Therefore this study suggests that more resources should be invested in the office of the AG so as to allow it to carry out its duties without impediments. Good governance and public finance accountability is becoming increasingly important in the public sector. One means of effecting good governance and accountability is through auditing. For this reason the Office of the Auditor-General through the Constitution of the Republic of South Africa 1996 (Act 108 of 1996 section 216 (1)) was established to facilitate and encourage good governance and effective accountability through auditing. To this end the study assesses the contribution made by the AGSA in encouraging good governance practices in government departments in the Eastern Cape Province.
- Full Text:
- Date Issued: 2015
- Authors: Khashe, Sivuyile Churchill
- Date: 2015
- Subjects: Auditing -- South Africa -- Eastern Cape Civil service -- South Africa -- Eastern Cape Public administration -- South Africa -- Eastern Cape Political corruption -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Admin
- Identifier: http://hdl.handle.net/10353/1675 , vital:27544
- Description: The Office of the Auditor -General’s role is by no means minor, for it plays a major role in curbing corruption and acts as a ‘’watchdog’’ of the nation over public funds. Amidst high mismanagement and misuse of public resources, as well as corruption, especially in developing countries, the major question one asks is how effective the Auditor -General can be in ensuring good governance within state departments so as to improve service delivery. The gaps between approved budgets and the realisation of policy and development goals stand among key governance challenges in many developing countries. Supreme Audit Institutions (SAIs) play an important role in holding governments to account. However, many SAIs including AGSA face serious challenges when trying to evaluate the expenditures and performance of government agencies. Therefore this study suggests that more resources should be invested in the office of the AG so as to allow it to carry out its duties without impediments. Good governance and public finance accountability is becoming increasingly important in the public sector. One means of effecting good governance and accountability is through auditing. For this reason the Office of the Auditor-General through the Constitution of the Republic of South Africa 1996 (Act 108 of 1996 section 216 (1)) was established to facilitate and encourage good governance and effective accountability through auditing. To this end the study assesses the contribution made by the AGSA in encouraging good governance practices in government departments in the Eastern Cape Province.
- Full Text:
- Date Issued: 2015
An exploration of the effect of world politics on SADC's capacity to manage and resolve violent conflict
- Authors: Matsanga, Mavis
- Date: 2015
- Subjects: Conflict management -- Zimbabwe , Non-governmental organizations -- Zimbabwe , Humanitarian intervention -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/6886 , vital:21157
- Description: The rise of International Non-Governmental Organisations (INGOS) in the post-Cold War era in Africa exerted pressure on conflict resolution mechanisms as governments responded to perceived and real pressure from external, mainly Western countries. INGOs are well resourced and conduct ‘humanitarian’ and other work funded by donors. The issue of funding is critical to control and legitimacy. It is also tied to achievement of intended goals. The study explores the relationships and in some cases conflict between Western NGOs in Zimbabwe and the government during the period when the latter was experiencing diplomatic estrangement with Western countries. The qualitative study seeks to establish whether INGO operations were influenced by political relations. The researcher interviewed twenty experts in NGO and governmental operations using an interview guide. Data was collected and entered into Nvivo software where it was thematically analysed. The major findings of the study are that the political strand is the main relational context that determined the relationship between the government and INGOs. INGOs were viewed as active conflict drivers mostly due to the bias towards certain political parties and being conduits of Western initiatives. Local conflict resolution mechanisms were also established to be inadequate. The study recommends that the government of Zimbabwe needs to work on maladministration and resolve differences with Western countries. Local NGOs and INGOs should not meddle in politics in order to have a trustworthy relationship with government while donor funds are more appreciated when channelled through governments.
- Full Text:
- Date Issued: 2015
- Authors: Matsanga, Mavis
- Date: 2015
- Subjects: Conflict management -- Zimbabwe , Non-governmental organizations -- Zimbabwe , Humanitarian intervention -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/6886 , vital:21157
- Description: The rise of International Non-Governmental Organisations (INGOS) in the post-Cold War era in Africa exerted pressure on conflict resolution mechanisms as governments responded to perceived and real pressure from external, mainly Western countries. INGOs are well resourced and conduct ‘humanitarian’ and other work funded by donors. The issue of funding is critical to control and legitimacy. It is also tied to achievement of intended goals. The study explores the relationships and in some cases conflict between Western NGOs in Zimbabwe and the government during the period when the latter was experiencing diplomatic estrangement with Western countries. The qualitative study seeks to establish whether INGO operations were influenced by political relations. The researcher interviewed twenty experts in NGO and governmental operations using an interview guide. Data was collected and entered into Nvivo software where it was thematically analysed. The major findings of the study are that the political strand is the main relational context that determined the relationship between the government and INGOs. INGOs were viewed as active conflict drivers mostly due to the bias towards certain political parties and being conduits of Western initiatives. Local conflict resolution mechanisms were also established to be inadequate. The study recommends that the government of Zimbabwe needs to work on maladministration and resolve differences with Western countries. Local NGOs and INGOs should not meddle in politics in order to have a trustworthy relationship with government while donor funds are more appreciated when channelled through governments.
- Full Text:
- Date Issued: 2015
Music education in the foundation phase
- Authors: Beer, Luzaan
- Date: 2015
- Subjects: Music -- Instruction and study -- South Africa , Education -- Curricula -- South Africa
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: vital:8525 , http://hdl.handle.net/10948/d1020302
- Description: Music education is an essential aspect of education. The South African school curriculum for the Creative Arts combines dance, drama, music and the visual arts. The curriculum uses a combination of the theories of Carl Orff, Emile Jaques-Dalcroze and Zoltán Kodály. Each of these music theorists and educationists have their own distinctive approach to teaching music. This study explores the theories of music education of Carl Orff, Emile Jaques-Dalcroze and Zoltán Kodály. These theories are applied in a critical analysis of both the South African curriculum and the curriculum of New South Wales. The researcher developed music activities to address the shortcomings of both the South African curriculum and the music texts.
- Full Text:
- Date Issued: 2015
- Authors: Beer, Luzaan
- Date: 2015
- Subjects: Music -- Instruction and study -- South Africa , Education -- Curricula -- South Africa
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: vital:8525 , http://hdl.handle.net/10948/d1020302
- Description: Music education is an essential aspect of education. The South African school curriculum for the Creative Arts combines dance, drama, music and the visual arts. The curriculum uses a combination of the theories of Carl Orff, Emile Jaques-Dalcroze and Zoltán Kodály. Each of these music theorists and educationists have their own distinctive approach to teaching music. This study explores the theories of music education of Carl Orff, Emile Jaques-Dalcroze and Zoltán Kodály. These theories are applied in a critical analysis of both the South African curriculum and the curriculum of New South Wales. The researcher developed music activities to address the shortcomings of both the South African curriculum and the music texts.
- Full Text:
- Date Issued: 2015
The status of vaccine availability and associated factors in Tshwane government clinics
- Authors: Ngcobo, Ntombenhle Judith
- Date: 2015
- Subjects: Health facilities -- Materials management -- South Africa -- City of Tshwane Metropolitan Municipality , Inventory shortages -- South Africa -- City of Tshwane Metropolitan Municipality
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8967 , vital:26447
- Description: Vaccines have greatly contributed to the control of vaccine preventable diseases. The adoption of the Decade of Vaccines (DoV) by the World Health Assembly in 2011 is an indication of how the global community values the benefits of vaccines. Efforts by many countries to introduce new vaccines are a significant move towards attaining this vision. However, new vaccines put strain on vaccine supply chains. The immunization programme in South Africa has similar challenges, with indications of vaccine stock outs in clinics since the introduction of three new vaccines in 2009. This study set out to establish the status of availability of vaccines in Tshwane government clinics and associated factors. Method: A cross-sectional study was conducted in a sample of randomly selected government clinics in Tshwane health district of Gauteng province. Data was collected using a structured measurement instrument during a visit to each of the participating clinics. Data was collated and analysed using excel based software. Results: A total of 31 clinics participated. In the preceding 12 months, clinics experienced vaccine stock outs, especially of the 3 new vaccines: pneumococcal conjugate vaccine (PCV), rotavirus (RV) vaccine and Pentaxim ®. These were also out of stock for a long duration; for over 2 weeks in a majority of clinics. The causes of vaccine stock outs were: poor management of stock, depot out of stock, unreliable deliveries, lack of pharmacy assistants, and limited fridge capacity. Further burdening the situation is the emergency ordering system that does not function effectively. Conclusion: Significant vaccine shortages occur in Tshwane government clinics. It is recommended that the vaccine supply chain should be restructured and overhauled with the use of advances in technology. Urgent measures should be taken to address the identified causes of stock outs including ensuring reliable deliveries of stock and emergency orders.
- Full Text:
- Date Issued: 2015
- Authors: Ngcobo, Ntombenhle Judith
- Date: 2015
- Subjects: Health facilities -- Materials management -- South Africa -- City of Tshwane Metropolitan Municipality , Inventory shortages -- South Africa -- City of Tshwane Metropolitan Municipality
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8967 , vital:26447
- Description: Vaccines have greatly contributed to the control of vaccine preventable diseases. The adoption of the Decade of Vaccines (DoV) by the World Health Assembly in 2011 is an indication of how the global community values the benefits of vaccines. Efforts by many countries to introduce new vaccines are a significant move towards attaining this vision. However, new vaccines put strain on vaccine supply chains. The immunization programme in South Africa has similar challenges, with indications of vaccine stock outs in clinics since the introduction of three new vaccines in 2009. This study set out to establish the status of availability of vaccines in Tshwane government clinics and associated factors. Method: A cross-sectional study was conducted in a sample of randomly selected government clinics in Tshwane health district of Gauteng province. Data was collected using a structured measurement instrument during a visit to each of the participating clinics. Data was collated and analysed using excel based software. Results: A total of 31 clinics participated. In the preceding 12 months, clinics experienced vaccine stock outs, especially of the 3 new vaccines: pneumococcal conjugate vaccine (PCV), rotavirus (RV) vaccine and Pentaxim ®. These were also out of stock for a long duration; for over 2 weeks in a majority of clinics. The causes of vaccine stock outs were: poor management of stock, depot out of stock, unreliable deliveries, lack of pharmacy assistants, and limited fridge capacity. Further burdening the situation is the emergency ordering system that does not function effectively. Conclusion: Significant vaccine shortages occur in Tshwane government clinics. It is recommended that the vaccine supply chain should be restructured and overhauled with the use of advances in technology. Urgent measures should be taken to address the identified causes of stock outs including ensuring reliable deliveries of stock and emergency orders.
- Full Text:
- Date Issued: 2015
The barefoot road
- Authors: Dingle, Brian Clinton
- Date: 2015
- Subjects: South African fiction (English) -- 21st century , Creative writing (Higher education) , South African fiction (English) -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5989 , http://hdl.handle.net/10962/d1017773
- Description: My novella is set in South Africa in a post-apocalyptic world. The drone technology theorised for the near future is widespread and scattered survivors live under the constant threat of drone strikes. The protagonist tries to negotiate these dangers and the looming threat of a slave empire to reconnect with his friends and family. He encounters bizarre hallucinations and flashbacks as a result of exposure to an unidentified gas.
- Full Text:
- Date Issued: 2015
- Authors: Dingle, Brian Clinton
- Date: 2015
- Subjects: South African fiction (English) -- 21st century , Creative writing (Higher education) , South African fiction (English) -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5989 , http://hdl.handle.net/10962/d1017773
- Description: My novella is set in South Africa in a post-apocalyptic world. The drone technology theorised for the near future is widespread and scattered survivors live under the constant threat of drone strikes. The protagonist tries to negotiate these dangers and the looming threat of a slave empire to reconnect with his friends and family. He encounters bizarre hallucinations and flashbacks as a result of exposure to an unidentified gas.
- Full Text:
- Date Issued: 2015
Improving the performance management system in a selected firm
- Authors: Sonti, Phindile Clinton
- Date: 2015
- Subjects: Performance -- Management , Employees -- Rating of
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8928 , http://hdl.handle.net/10948/d1021172
- Description: The performance management system has become a vital process of retaining skilled employees, helping to improve communication between the employees and management, providing feedback to employees and clear understanding of job expectation. A performance management system assists the firm to identify the ways to improve individual and firm performance and provides the opportunity for discussion about individual career direction and growth within the firm. It provides the opportunity to set employee targets linked to the departmental targets. The performance management system is the catalyst for firms to become globally competitive and be able to meet targets. Over the years the firm has introduced a performance management system to help employees to achieve their targets, which will result in the company meeting its own objectives. The study focused on the factors that affect the performance management system. The objective of the research was to improve the performance management system of the firm. The study was conducted to assess the effect of the following independent variables on the improvement of the performance management system: leadership style, training, organisational culture, reward system and organisational communication. The sample consisted of only the employees of the firm selected for the study. One hundred and fifty (150) questionnaires were distributed, but only seventy-six (76) respondents (response rate = 50.7 percent) participated in the final study. The empirical results revealed that the three independent variables play a very important role in improving a performance management system. These three variables are organisational culture, training, and reward system. Implementing the recommendations that came from these results will go a long way to making sure that the firm will improve its performance management system.
- Full Text:
- Date Issued: 2015
- Authors: Sonti, Phindile Clinton
- Date: 2015
- Subjects: Performance -- Management , Employees -- Rating of
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8928 , http://hdl.handle.net/10948/d1021172
- Description: The performance management system has become a vital process of retaining skilled employees, helping to improve communication between the employees and management, providing feedback to employees and clear understanding of job expectation. A performance management system assists the firm to identify the ways to improve individual and firm performance and provides the opportunity for discussion about individual career direction and growth within the firm. It provides the opportunity to set employee targets linked to the departmental targets. The performance management system is the catalyst for firms to become globally competitive and be able to meet targets. Over the years the firm has introduced a performance management system to help employees to achieve their targets, which will result in the company meeting its own objectives. The study focused on the factors that affect the performance management system. The objective of the research was to improve the performance management system of the firm. The study was conducted to assess the effect of the following independent variables on the improvement of the performance management system: leadership style, training, organisational culture, reward system and organisational communication. The sample consisted of only the employees of the firm selected for the study. One hundred and fifty (150) questionnaires were distributed, but only seventy-six (76) respondents (response rate = 50.7 percent) participated in the final study. The empirical results revealed that the three independent variables play a very important role in improving a performance management system. These three variables are organisational culture, training, and reward system. Implementing the recommendations that came from these results will go a long way to making sure that the firm will improve its performance management system.
- Full Text:
- Date Issued: 2015
An analysis of community-police partnerships: a case study of the Thornhill policing area
- Authors: Els, Deon
- Date: 2015
- Subjects: Community policing -- South Africa , Police-community relations , Crime prevention -- Citizen participation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/8617 , vital:26412
- Description: In this case study, an effective community-police partnership in the Thornhill area is described and explored as a function of the successful application of conflict management approaches. The partnership was implemented in a quest to solve the problem of increasing suicides at the Van Stadens Bridge. Indications are that partnership between government agencies and the community have generally failed in democratic South Africa with respect to the education, health and policing sectors. Partnerships between the community and policing system are challenging because the South African Police Service (SAPS) is continuously plagued by incidents of police brutality, police killings and leadership crises.In order to understand the context of the Thornhill community-police partnership and establish if the operation of the partnership is successful, a wide-ranging conflict management approach is taken to evaluate the partnership. The literature review includes the history of conflict in SA, SAPS and Community Policing, leadership in conflict management, theories of social conflict, and suicidology.
- Full Text:
- Date Issued: 2015
- Authors: Els, Deon
- Date: 2015
- Subjects: Community policing -- South Africa , Police-community relations , Crime prevention -- Citizen participation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/8617 , vital:26412
- Description: In this case study, an effective community-police partnership in the Thornhill area is described and explored as a function of the successful application of conflict management approaches. The partnership was implemented in a quest to solve the problem of increasing suicides at the Van Stadens Bridge. Indications are that partnership between government agencies and the community have generally failed in democratic South Africa with respect to the education, health and policing sectors. Partnerships between the community and policing system are challenging because the South African Police Service (SAPS) is continuously plagued by incidents of police brutality, police killings and leadership crises.In order to understand the context of the Thornhill community-police partnership and establish if the operation of the partnership is successful, a wide-ranging conflict management approach is taken to evaluate the partnership. The literature review includes the history of conflict in SA, SAPS and Community Policing, leadership in conflict management, theories of social conflict, and suicidology.
- Full Text:
- Date Issued: 2015
Best practices in dealing with substance abuse in the workplace
- Authors: Mboniswa, Hlangalwethu
- Date: 2015
- Subjects: Substance abuse -- Prevention , Alcoholism and employment -- South Africa , Employee assistance programs -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8542 , vital:26404
- Description: The research study was to identify what strategies could be used by organizations in managing or containing substance abuse in the workplace. In solving the research problems, the following actions were taken: A literature study was conducted to identify the scope and impact of substance abuse in the workplace; A literature study was also conducted to identify the strategies to prevent and contain substance abuse in the workplace;The findings from the literature studies were integrated into a model of best practices for the management of substance abuse in the workplace; The model was used as a basis for the development of a survey questionnaire to determine which strategies and wellness activities the surveyed companies were using. The questionnaire survey was administered at 25 companies in Port Elizabeth. The empirical results revealed that substance abuse was common at all organizations and the size of the organization had no bearing on the extent of the substance abuse problem. The majority of the participants in the study indicated that they experienced substance abuse problems in their organizations with alcohol consumption being the main problem at these organizations. The results also revealed that companies were not doing enough in terms of education and awareness campaigns. The lack of campaigns and education material could pose a difficult challenge to deal with and could result in companies experiencing adverse performance. Another contributing factor in the prevalence of substance abuse in the workplace was that alcohol and tobacco were referred to as socially acceptable substances.
- Full Text:
- Date Issued: 2015
- Authors: Mboniswa, Hlangalwethu
- Date: 2015
- Subjects: Substance abuse -- Prevention , Alcoholism and employment -- South Africa , Employee assistance programs -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8542 , vital:26404
- Description: The research study was to identify what strategies could be used by organizations in managing or containing substance abuse in the workplace. In solving the research problems, the following actions were taken: A literature study was conducted to identify the scope and impact of substance abuse in the workplace; A literature study was also conducted to identify the strategies to prevent and contain substance abuse in the workplace;The findings from the literature studies were integrated into a model of best practices for the management of substance abuse in the workplace; The model was used as a basis for the development of a survey questionnaire to determine which strategies and wellness activities the surveyed companies were using. The questionnaire survey was administered at 25 companies in Port Elizabeth. The empirical results revealed that substance abuse was common at all organizations and the size of the organization had no bearing on the extent of the substance abuse problem. The majority of the participants in the study indicated that they experienced substance abuse problems in their organizations with alcohol consumption being the main problem at these organizations. The results also revealed that companies were not doing enough in terms of education and awareness campaigns. The lack of campaigns and education material could pose a difficult challenge to deal with and could result in companies experiencing adverse performance. Another contributing factor in the prevalence of substance abuse in the workplace was that alcohol and tobacco were referred to as socially acceptable substances.
- Full Text:
- Date Issued: 2015
The isolation, genetic characterisation and biological activity of a South African Phthorimaea operculella granulovirus (PhopGV-SA) for the control of the Potato Tuber Moth, Phthorimaea operculella (Zeller)
- Authors: Jukes, Michael David
- Date: 2015
- Subjects: Potato tuberworm , Potatoes -- Diseases and pests -- South Africa , Baculoviruses , Natural pesticides , Biological pest control agents , Potato tuberworm -- Biological control , Restriction enzymes, DNA
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4147 , http://hdl.handle.net/10962/d1017908
- Description: The potato tuber moth, Phthorimaea operculella (Zeller), is a major pest of potato crops worldwide causing significant damage to both field and stored tubers. The current control method in South Africa involves chemical insecticides, however, there is growing concern on the health and environmental risks of their use. The development of novel biopesticide based control methods may offer a potential solution for the future of insecticides. In this study a baculovirus was successfully isolated from a laboratory population of P. operculella. Transmission electron micrographs revealed granulovirus-like particles. DNA was extracted from recovered occlusion bodies and used for the PCR amplification of the lef-8, lef-9, granulin and egt genes. Sequence data was obtained and submitted to BLAST identifying the virus as a South African isolate of Phthorimaea operculella granulovirus (PhopGV-SA). Phylogenetic analysis of the lef-8, lef-9 and granulin amino acid sequences grouped the South African isolate with PhopGV-1346. Comparison of egt sequence data identified PhopGV-SA as a type II egt gene. A phylogenetic analysis of egt amino acid sequences grouped all type II genes, including PhopGV-SA, into a separate clade from types I, III, IV and V. These findings suggest that type II may represent the prototype structure for this gene with the evolution of types I, III and IV a result of large internal deletion events and subsequent divergence. PhopGV-SA was also shown to be genetically more similar to South American isolates (i.e. PhopGV-CHI or PhopGV-INDO) than it is to other African isolates, suggesting that the South African isolate originated from South America. Restriction endonuclease profiles of PhopGV-SA were similar to those of PhopGV-1346 and PhopGV-JLZ9f for the enzymes BamHI, HindIII, NruI and NdeI. A preliminary full genome sequence for PhopGV-SA was determined and compared to PhopGV-136 with some gene variation observed (i.e. odv-e66 and vp91/p95). The biological activity of PhopGV-SA against P. operculella neonate larvae was evaluated with an estimated LC₅₀ of 1.87×10⁸ OBs.ml⁻¹ being determined. This study therefore reports the characterisation of a novel South African PhopGV isolate which could potentially be developed into a biopesticide for the control of P. operculella.
- Full Text:
- Date Issued: 2015
- Authors: Jukes, Michael David
- Date: 2015
- Subjects: Potato tuberworm , Potatoes -- Diseases and pests -- South Africa , Baculoviruses , Natural pesticides , Biological pest control agents , Potato tuberworm -- Biological control , Restriction enzymes, DNA
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4147 , http://hdl.handle.net/10962/d1017908
- Description: The potato tuber moth, Phthorimaea operculella (Zeller), is a major pest of potato crops worldwide causing significant damage to both field and stored tubers. The current control method in South Africa involves chemical insecticides, however, there is growing concern on the health and environmental risks of their use. The development of novel biopesticide based control methods may offer a potential solution for the future of insecticides. In this study a baculovirus was successfully isolated from a laboratory population of P. operculella. Transmission electron micrographs revealed granulovirus-like particles. DNA was extracted from recovered occlusion bodies and used for the PCR amplification of the lef-8, lef-9, granulin and egt genes. Sequence data was obtained and submitted to BLAST identifying the virus as a South African isolate of Phthorimaea operculella granulovirus (PhopGV-SA). Phylogenetic analysis of the lef-8, lef-9 and granulin amino acid sequences grouped the South African isolate with PhopGV-1346. Comparison of egt sequence data identified PhopGV-SA as a type II egt gene. A phylogenetic analysis of egt amino acid sequences grouped all type II genes, including PhopGV-SA, into a separate clade from types I, III, IV and V. These findings suggest that type II may represent the prototype structure for this gene with the evolution of types I, III and IV a result of large internal deletion events and subsequent divergence. PhopGV-SA was also shown to be genetically more similar to South American isolates (i.e. PhopGV-CHI or PhopGV-INDO) than it is to other African isolates, suggesting that the South African isolate originated from South America. Restriction endonuclease profiles of PhopGV-SA were similar to those of PhopGV-1346 and PhopGV-JLZ9f for the enzymes BamHI, HindIII, NruI and NdeI. A preliminary full genome sequence for PhopGV-SA was determined and compared to PhopGV-136 with some gene variation observed (i.e. odv-e66 and vp91/p95). The biological activity of PhopGV-SA against P. operculella neonate larvae was evaluated with an estimated LC₅₀ of 1.87×10⁸ OBs.ml⁻¹ being determined. This study therefore reports the characterisation of a novel South African PhopGV isolate which could potentially be developed into a biopesticide for the control of P. operculella.
- Full Text:
- Date Issued: 2015
Strategic thinking during a period of turbulence : a case study of the BancABC Zimbabwe
- Authors: Mberi, Mary-Jane
- Date: 2015
- Subjects: BancABC (Zimbabwe) , Strategic planning -- Case studies , Strategic planning -- Zimbabwe , Inflation (Finance) -- Zimbabwe , Problem solving -- Zimbabwe , Crisis management -- Zimbabwe , Decision making -- Zimbabwe , Critical incident technique
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:861 , http://hdl.handle.net/10962/d1020603
- Description: A review of strategic thinking literature indicates that research has tended to focus on experiences contributing to strategic thinking, the strategic thinking perspectives that executives are likely to follow based on the environments in which they have developed their strategic competencies, and examining executives’ cognitive maps within the context of strategic management (O’ Shannassy 2003; Kutschera, and Ryan, 2009; Meyer, 2007). As an expansion of these principles and foundations of strategic thinking, this research was a study of the extent to which strategic thinking perspectives are utilised during macro environmental turbulence. According to Cravens et al. (2009: 31) volatility, reinvention, and fundamental changes in markets present unprecedented challenges to researchers and executives. “Unfortunately, too often traditional conceptual models and theories fail to provide adequate insight for coping with this new and rapidly changing business environment. Traditional market perspectives and conceptual logic may even blind researchers and strategic decision makers to the real threats present in the changing competitive landscape and new market space, and to opportunities for added value which can be uncovered and exploited” Cravens et al. (2009: 31). Hyperinflation in Zimbabwe was a major problem from 2003 to April 2009, when the country suspended its own currency and for the next five years the country continued to struggle with various macro environmental challenges. It is this backdrop that makes this research intriguing, where the soundness of any organisation is said to be crucially linked to the soundness of the macro environment, including macroeconomic policies as well as internal governance, market discipline; regulation and supervision (Louw and Venter, 2010). The research was a case study of BancABC Zimbabwe and focused on the period 2009 to 2013. BancABC Zimbabwe is a subsidiary of ABC Holdings Limited which is listed on the Botswana and Zimbabwe stock exchanges (BancABC, 2012). The aim of the study as the first key activity was to explore and describe how the BancABC executives responded to the critical macro environmental incidents identified, at a management or executive team perspective, and secondly, whether the rational reasoning or generative reasoning perspective was dominant during the period of turbulence. The goal is to gain insights of the strategic thinking process followed by executives during a period of macro-environmental turbulence. Literature defines strategic thinking concept as the cognitive process undertaken by executives in relation to problem solving in the business context. Two main perspectives are discussed: Strategic thinking as a science (rational thinking) is the prescriptive, structured nature of strategic thinking; arguments are that it is a less complex perspective for executives to adopt. Strategic thinking as an art (generative thinking) is the perspective that allows the strategist to think outside the box and be more creative about solving strategic problems. The discussion presents how the two perspectives can be used to complement each other and provide a more robust strategic thinking framework. The multi-perspective approach to strategic thinking recommends the right balance between analysis, intuition and creativity can be used to create new frameworks and innovative solutions. The ability to balance these strategic thinking perspectives enables executives to solve strategic problems (Linkov, 1999). The research findings highlighted the effect of time and availability of information on the strategic thinking perspective adopted by executives during times of uncertainty. It was noted that when time and information were available, executives appeared to use the rational strategic thinking perspective, while if there was limited time and information to solve problems the generative thinking perspective was dominantly used. Further the importance of integrative strategic thinking which facilitates the use of both intuition and analysis when solving strategic problems in a turbulent macro environment was also highlighted. The research thesis adopted the structure of a case study, relying on the critical incident technique to create the context of the study; and can be used to explore and discuss strategic thinking for teaching purposes. The results of the study can be recognised as a contribution towards the development of strategic thinking particularly in times of turbulence. It can also form the basis for future studies in the context of strategic thinking.
- Full Text:
- Date Issued: 2015
- Authors: Mberi, Mary-Jane
- Date: 2015
- Subjects: BancABC (Zimbabwe) , Strategic planning -- Case studies , Strategic planning -- Zimbabwe , Inflation (Finance) -- Zimbabwe , Problem solving -- Zimbabwe , Crisis management -- Zimbabwe , Decision making -- Zimbabwe , Critical incident technique
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:861 , http://hdl.handle.net/10962/d1020603
- Description: A review of strategic thinking literature indicates that research has tended to focus on experiences contributing to strategic thinking, the strategic thinking perspectives that executives are likely to follow based on the environments in which they have developed their strategic competencies, and examining executives’ cognitive maps within the context of strategic management (O’ Shannassy 2003; Kutschera, and Ryan, 2009; Meyer, 2007). As an expansion of these principles and foundations of strategic thinking, this research was a study of the extent to which strategic thinking perspectives are utilised during macro environmental turbulence. According to Cravens et al. (2009: 31) volatility, reinvention, and fundamental changes in markets present unprecedented challenges to researchers and executives. “Unfortunately, too often traditional conceptual models and theories fail to provide adequate insight for coping with this new and rapidly changing business environment. Traditional market perspectives and conceptual logic may even blind researchers and strategic decision makers to the real threats present in the changing competitive landscape and new market space, and to opportunities for added value which can be uncovered and exploited” Cravens et al. (2009: 31). Hyperinflation in Zimbabwe was a major problem from 2003 to April 2009, when the country suspended its own currency and for the next five years the country continued to struggle with various macro environmental challenges. It is this backdrop that makes this research intriguing, where the soundness of any organisation is said to be crucially linked to the soundness of the macro environment, including macroeconomic policies as well as internal governance, market discipline; regulation and supervision (Louw and Venter, 2010). The research was a case study of BancABC Zimbabwe and focused on the period 2009 to 2013. BancABC Zimbabwe is a subsidiary of ABC Holdings Limited which is listed on the Botswana and Zimbabwe stock exchanges (BancABC, 2012). The aim of the study as the first key activity was to explore and describe how the BancABC executives responded to the critical macro environmental incidents identified, at a management or executive team perspective, and secondly, whether the rational reasoning or generative reasoning perspective was dominant during the period of turbulence. The goal is to gain insights of the strategic thinking process followed by executives during a period of macro-environmental turbulence. Literature defines strategic thinking concept as the cognitive process undertaken by executives in relation to problem solving in the business context. Two main perspectives are discussed: Strategic thinking as a science (rational thinking) is the prescriptive, structured nature of strategic thinking; arguments are that it is a less complex perspective for executives to adopt. Strategic thinking as an art (generative thinking) is the perspective that allows the strategist to think outside the box and be more creative about solving strategic problems. The discussion presents how the two perspectives can be used to complement each other and provide a more robust strategic thinking framework. The multi-perspective approach to strategic thinking recommends the right balance between analysis, intuition and creativity can be used to create new frameworks and innovative solutions. The ability to balance these strategic thinking perspectives enables executives to solve strategic problems (Linkov, 1999). The research findings highlighted the effect of time and availability of information on the strategic thinking perspective adopted by executives during times of uncertainty. It was noted that when time and information were available, executives appeared to use the rational strategic thinking perspective, while if there was limited time and information to solve problems the generative thinking perspective was dominantly used. Further the importance of integrative strategic thinking which facilitates the use of both intuition and analysis when solving strategic problems in a turbulent macro environment was also highlighted. The research thesis adopted the structure of a case study, relying on the critical incident technique to create the context of the study; and can be used to explore and discuss strategic thinking for teaching purposes. The results of the study can be recognised as a contribution towards the development of strategic thinking particularly in times of turbulence. It can also form the basis for future studies in the context of strategic thinking.
- Full Text:
- Date Issued: 2015
Using experience from previous failed implementations to improve future lean implementation strategy
- Authors: Hiles, Charmelle Amanda
- Date: 2015
- Subjects: Lean manufacturing -- Management Production planning
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/11047 , vital:26880
- Description: The main objective of the study was to ascertain the presence of the identified critical success factors for lean sustainability in a chemical manufacturing company in Port Elizabeth. The critical success factors that formed part of the research included leadership involvement and commitment, management involvement and commitment, employee engagement and organisational culture. The methodology used was one of a positivistic approach. A questionnaire was utilized and the responses were analyzed using various statistical methods. Based on the results from the analysis, recommendations and conclusions could be drawn. The inferential results of the study indicated that all the critical success factors identified for this study were present within the organisation. However, there were still a large percentage of respondents that remained neutral across all the questions which could indicate reasons why previous attempts in lean implementation failed. The recommendations provided were based on the findings of the study. An implementation strategy was identified and outlined. This strategy and recommendations will assist in providing a sound platform for a sustainable lean initiative within the organisation.
- Full Text:
- Date Issued: 2015
Using experience from previous failed implementations to improve future lean implementation strategy
- Authors: Hiles, Charmelle Amanda
- Date: 2015
- Subjects: Lean manufacturing -- Management Production planning
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/11047 , vital:26880
- Description: The main objective of the study was to ascertain the presence of the identified critical success factors for lean sustainability in a chemical manufacturing company in Port Elizabeth. The critical success factors that formed part of the research included leadership involvement and commitment, management involvement and commitment, employee engagement and organisational culture. The methodology used was one of a positivistic approach. A questionnaire was utilized and the responses were analyzed using various statistical methods. Based on the results from the analysis, recommendations and conclusions could be drawn. The inferential results of the study indicated that all the critical success factors identified for this study were present within the organisation. However, there were still a large percentage of respondents that remained neutral across all the questions which could indicate reasons why previous attempts in lean implementation failed. The recommendations provided were based on the findings of the study. An implementation strategy was identified and outlined. This strategy and recommendations will assist in providing a sound platform for a sustainable lean initiative within the organisation.
- Full Text:
- Date Issued: 2015
Investigation into the characteristics and possible applications of biomass gasification by-products from a downdraft gasifier system
- Authors: Melapi, Aviwe
- Date: 2015
- Subjects: Biomass gasification -- South Africa -- Eastern Cape , Renewable energy sources -- South Africa -- Eastern Cape , Biomass energy -- South Africa -- Eastern Cape , Crop residue management -- South Africa -- Eastern Cape , Coal gasification -- South Africa -- Eastern Cape , Lignocellulose -- Biodegradation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc (Chemistry)
- Identifier: vital:11348 , http://hdl.handle.net/10353/d1020174 , Biomass gasification -- South Africa -- Eastern Cape , Renewable energy sources -- South Africa -- Eastern Cape , Biomass energy -- South Africa -- Eastern Cape , Crop residue management -- South Africa -- Eastern Cape , Coal gasification -- South Africa -- Eastern Cape , Lignocellulose -- Biodegradation -- South Africa -- Eastern Cape
- Description: Biomass gasification has attracted the interest of researchers because it produces zero carbon to the atmosphere. This technology does not only produce syngas but also the byproducts which can be used for various application depending on quality.The study conducted at Melani village in Alice in the Eastern Cape of South Africa was aimed at investigating the possible applications of the gasification byproducts instead of being thrown away. Pine wood was employed as the parent feedstock material for the gasifier. Biomass gasification by-products were then collected for further analysis. The studied by-products included tar(condensate), char, soot and resin. These materials were also blended to produce strong materials.The essence of the blending was to generate ideal material that is strong but light at the same time.The elemental analysis of the samples performed by CHNS analyser revealed that carbon element is in large quantities in all samples. The FTIR spectra showed almost similar results for all the studied samples, since the samples are end products of lignocellulosegasification. SEM gave the sticky images of resin as well as porous char structures. Char showed a higher heating value of 35.37MJ/Kg when compared to other by-products samples.
- Full Text:
- Date Issued: 2015
- Authors: Melapi, Aviwe
- Date: 2015
- Subjects: Biomass gasification -- South Africa -- Eastern Cape , Renewable energy sources -- South Africa -- Eastern Cape , Biomass energy -- South Africa -- Eastern Cape , Crop residue management -- South Africa -- Eastern Cape , Coal gasification -- South Africa -- Eastern Cape , Lignocellulose -- Biodegradation -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc (Chemistry)
- Identifier: vital:11348 , http://hdl.handle.net/10353/d1020174 , Biomass gasification -- South Africa -- Eastern Cape , Renewable energy sources -- South Africa -- Eastern Cape , Biomass energy -- South Africa -- Eastern Cape , Crop residue management -- South Africa -- Eastern Cape , Coal gasification -- South Africa -- Eastern Cape , Lignocellulose -- Biodegradation -- South Africa -- Eastern Cape
- Description: Biomass gasification has attracted the interest of researchers because it produces zero carbon to the atmosphere. This technology does not only produce syngas but also the byproducts which can be used for various application depending on quality.The study conducted at Melani village in Alice in the Eastern Cape of South Africa was aimed at investigating the possible applications of the gasification byproducts instead of being thrown away. Pine wood was employed as the parent feedstock material for the gasifier. Biomass gasification by-products were then collected for further analysis. The studied by-products included tar(condensate), char, soot and resin. These materials were also blended to produce strong materials.The essence of the blending was to generate ideal material that is strong but light at the same time.The elemental analysis of the samples performed by CHNS analyser revealed that carbon element is in large quantities in all samples. The FTIR spectra showed almost similar results for all the studied samples, since the samples are end products of lignocellulosegasification. SEM gave the sticky images of resin as well as porous char structures. Char showed a higher heating value of 35.37MJ/Kg when compared to other by-products samples.
- Full Text:
- Date Issued: 2015
Reconceptualising notions of South African Indianess : a personal narrative
- Authors: Kunvar, Yogita
- Date: 2015
- Subjects: East Indians -- South Africa , East Indians -- South Africa -- Ethnic identity , East Indians -- Cultural assimilation -- South Africa , National characteristics, East Indian , East Indian diaspora , Identity (Psychology) , South Africa -- Social conditions -- 1961-1994 , South Africa -- Politics and government -- 1948-1994 , South Africa -- Race relations
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:2123 , http://hdl.handle.net/10962/d1017767
- Description: The theoretical challenge of conceptualising South African Indianess is suffused with a plethora of variables that suggest complexity. While being misleadingly homogenous, Indian identity encompasses a multitude of expressions. This thesis seeks to reconceptualise notions of South African Indianess through personal narrative. The research context is contemporary South Africa with a specific focus on Johannesburg’s East Rand Reef. Inspired by the dearth of literature on contemporary Indianess this study addresses the gap in the present discourse. Following the autoethnographic work of Motzafi-Haller (1997) and Narayan (1993) the thesis presents a layered narrative by juxtaposing the experiences of research participants with my own. Using multi-sited autoethnographic data the thesis explores the question of what it means to be Indian in relation to South Africa’s Apartheid past. By drawing on concepts in popular diaspora theory and critiquing their application, the thesis illustrates the inadequacies inherent in the definitions of diaspora and suggests a broader understanding of its application. Through exploring layers of Indianess the thesis illustrates the inherent complexity in reconceptualising South African Indianess. The study suggests that as a result of changing global and local flows, South African Indians are reconceptualising what it means to be South African Indian.
- Full Text:
- Date Issued: 2015
- Authors: Kunvar, Yogita
- Date: 2015
- Subjects: East Indians -- South Africa , East Indians -- South Africa -- Ethnic identity , East Indians -- Cultural assimilation -- South Africa , National characteristics, East Indian , East Indian diaspora , Identity (Psychology) , South Africa -- Social conditions -- 1961-1994 , South Africa -- Politics and government -- 1948-1994 , South Africa -- Race relations
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:2123 , http://hdl.handle.net/10962/d1017767
- Description: The theoretical challenge of conceptualising South African Indianess is suffused with a plethora of variables that suggest complexity. While being misleadingly homogenous, Indian identity encompasses a multitude of expressions. This thesis seeks to reconceptualise notions of South African Indianess through personal narrative. The research context is contemporary South Africa with a specific focus on Johannesburg’s East Rand Reef. Inspired by the dearth of literature on contemporary Indianess this study addresses the gap in the present discourse. Following the autoethnographic work of Motzafi-Haller (1997) and Narayan (1993) the thesis presents a layered narrative by juxtaposing the experiences of research participants with my own. Using multi-sited autoethnographic data the thesis explores the question of what it means to be Indian in relation to South Africa’s Apartheid past. By drawing on concepts in popular diaspora theory and critiquing their application, the thesis illustrates the inadequacies inherent in the definitions of diaspora and suggests a broader understanding of its application. Through exploring layers of Indianess the thesis illustrates the inherent complexity in reconceptualising South African Indianess. The study suggests that as a result of changing global and local flows, South African Indians are reconceptualising what it means to be South African Indian.
- Full Text:
- Date Issued: 2015
Ni(II) and Pb(II) dithiocarbamate complexes as precursors for the synthesis of HDA-capped NiS and PbS nanoparticles
- Authors: Chintso, Thobani
- Date: 2015
- Language: English
- Type: Thesis , Masters , MSc (Chemistry)
- Identifier: vital:11349 , http://hdl.handle.net/10353/d1020201
- Description: Ni(II) and Pb(II) dithiocarbamate complexes were synthesized and characterized by elemental analysis, UV-Vis, FTIR and TGA and some of the Ni(II) complexes and one Pb(II) were further analyzed by 1H-NMR and 13C-NMR spectroscopy. Generally all the dithiocarbamate ligands are soluble in water while the complexes were soluble mostly in solvents such as chloroform, toluene, DMSO and DCM. Based on the elemental analysis, the dithiocarbamate complexes are formulated as four coordinate (tetrahedral or square planar) compounds. However, the FTIR showed that each of the dithiocarbamate ligands acted as bidentate ligand through two sulfur atoms. The TGA of the most complexes showed one major decomposition step to give respective metal sulfide above 200 oC. In this research project, dithiocarbamate complexes were used as single source precursor for the synthesis of metal sulfide nanoparticles. We studied the optical and structural properties of metal sulfide nanoparticles using UV-Vis, photoluminescence (PL), powder X-ray diffraction (XRD), energy dispersive X-ray (EDX), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The absorption spectra of the metal sulfide nanoparticles are blue shifted in respect to bulk material and they also showed broad emission. The XRD of the NiS nanoparticles were indexed to the cubic and rhombohedral phase, with crystallite sizes of 15 - 18 nm. The XRD of PbS nanoparticles were indexed to the face centered cubic and cubic rock salts, with the crystallite sizes 12 - 18 nm. The TEM images of the metal sulfide nanoparticles showed particles with spherical and rectangular shapes with crystallite sizes 4 - 35 nm.
- Full Text:
- Date Issued: 2015
- Authors: Chintso, Thobani
- Date: 2015
- Language: English
- Type: Thesis , Masters , MSc (Chemistry)
- Identifier: vital:11349 , http://hdl.handle.net/10353/d1020201
- Description: Ni(II) and Pb(II) dithiocarbamate complexes were synthesized and characterized by elemental analysis, UV-Vis, FTIR and TGA and some of the Ni(II) complexes and one Pb(II) were further analyzed by 1H-NMR and 13C-NMR spectroscopy. Generally all the dithiocarbamate ligands are soluble in water while the complexes were soluble mostly in solvents such as chloroform, toluene, DMSO and DCM. Based on the elemental analysis, the dithiocarbamate complexes are formulated as four coordinate (tetrahedral or square planar) compounds. However, the FTIR showed that each of the dithiocarbamate ligands acted as bidentate ligand through two sulfur atoms. The TGA of the most complexes showed one major decomposition step to give respective metal sulfide above 200 oC. In this research project, dithiocarbamate complexes were used as single source precursor for the synthesis of metal sulfide nanoparticles. We studied the optical and structural properties of metal sulfide nanoparticles using UV-Vis, photoluminescence (PL), powder X-ray diffraction (XRD), energy dispersive X-ray (EDX), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The absorption spectra of the metal sulfide nanoparticles are blue shifted in respect to bulk material and they also showed broad emission. The XRD of the NiS nanoparticles were indexed to the cubic and rhombohedral phase, with crystallite sizes of 15 - 18 nm. The XRD of PbS nanoparticles were indexed to the face centered cubic and cubic rock salts, with the crystallite sizes 12 - 18 nm. The TEM images of the metal sulfide nanoparticles showed particles with spherical and rectangular shapes with crystallite sizes 4 - 35 nm.
- Full Text:
- Date Issued: 2015
Evaluation of microinsurance distribution strategy at the bottom of the pyramid by Liberty Life Swaziland
- Authors: Lukhele, Mlungisi Reginald
- Date: 2015
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/54474 , vital:26568
- Description: This is a qualitative study which focuses on how Liberty Life Swaziland distributes microinsurance to the bottom of the pyramid within Swaziland. Using stratified purposive sampling, this study identified 5 managers within Liberty Life and 4 managers from brokerages and affinity partners who had a minimum of 3 years’ experience in distribution of microinsurance. Semi-structured and in-depth interviews were conducted by the researcher with these managers. Interviews were stopped when there was data saturation. To induce emerging themes from the data, open-coding and constant comparison technique was used. Findings in this study reveal that to distribute microinsurance to low income households, Liberty Life objectives are to; (1) provide relevant solutions in a cost effective manner, thus keeping premiums as affordable as possible, (2) provide simple products which are easy to understand by customers, (3) make services accessible, and (4) make doing business easy. In this regard, Liberty Life distribution strategy is to partner with bulk retailing entities that have a client base they already service and benefit from nationwide presence and infrastructure. Lastly, the perspectives of both internal and external stakeholders in microinsurance are discussed to evaluate the challenges and successes experienced in implementing the distribution strategy. This study is valuable to critically understand the current distribution strategy from the viewpoint of key intermediaries, but also pinpoint how efforts to achieve microinsurance distribution objectives can be enhanced. Lastly, the study recommends that; a selection criteria be set for distribution partners, partnership with mobile network operators, investment in continuous training of distribution partners and knowledge sharing between Liberty and intermediaries to cease the opportunity at the bottom of the pyramid.
- Full Text:
- Date Issued: 2015
- Authors: Lukhele, Mlungisi Reginald
- Date: 2015
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/54474 , vital:26568
- Description: This is a qualitative study which focuses on how Liberty Life Swaziland distributes microinsurance to the bottom of the pyramid within Swaziland. Using stratified purposive sampling, this study identified 5 managers within Liberty Life and 4 managers from brokerages and affinity partners who had a minimum of 3 years’ experience in distribution of microinsurance. Semi-structured and in-depth interviews were conducted by the researcher with these managers. Interviews were stopped when there was data saturation. To induce emerging themes from the data, open-coding and constant comparison technique was used. Findings in this study reveal that to distribute microinsurance to low income households, Liberty Life objectives are to; (1) provide relevant solutions in a cost effective manner, thus keeping premiums as affordable as possible, (2) provide simple products which are easy to understand by customers, (3) make services accessible, and (4) make doing business easy. In this regard, Liberty Life distribution strategy is to partner with bulk retailing entities that have a client base they already service and benefit from nationwide presence and infrastructure. Lastly, the perspectives of both internal and external stakeholders in microinsurance are discussed to evaluate the challenges and successes experienced in implementing the distribution strategy. This study is valuable to critically understand the current distribution strategy from the viewpoint of key intermediaries, but also pinpoint how efforts to achieve microinsurance distribution objectives can be enhanced. Lastly, the study recommends that; a selection criteria be set for distribution partners, partnership with mobile network operators, investment in continuous training of distribution partners and knowledge sharing between Liberty and intermediaries to cease the opportunity at the bottom of the pyramid.
- Full Text:
- Date Issued: 2015
The impact of government support on growth, survival and performance of cooperatives in selected areas of Eastern Cape province; South Africa
- Authors: Mqaba, Mzuyanda Victor
- Date: 2015
- Subjects: Cooperative societies -- South Africa -- Eastern Cape Producer cooperatives -- South Africa -- Eastern Cape Agriculture, Cooperative -- South Africa -- Eastern Cape Sustainable development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Com (Business Management)
- Identifier: http://hdl.handle.net/10353/1612 , vital:27488
- Description: This study investigated the impact of government support on growth, survival and performance of agricultural cooperatives in selected areas of Eastern Cape Province of South Africa. The objectives of this empirical study were to examine (1) the impact of government support on growth of cooperatives, (2) assess the impact of government support on the performance of cooperatives, (3) reviewing the impact of government support on survival of cooperatives. A total sample of 157 agricultural cooperatives which consisted of poultry, maize, goat, nursery, sheep and vegetable coops was used. Stratified random sampling technique was used and a self-administered questionnaire used to gather primary data. The primary data of the study was gathered from the cooperatives managers only as they were the targeted respondents. Gathered data went through factor analysis, anova test and correlation analysis for the statistical analysis purposefully to arrive in study findings and conclusion. The findings of the study drawn from the 66% response rate concluded that government support has a statistical significant impact on growth of cooperatives. The study also indicated that government support has a significant impact on the survival of cooperatives. It is also reported that the performance of cooperatives is significantly impacted positively by government support. The findings of the study also indicated that agricultural cooperatives are not satisfied with the present government support.
- Full Text:
- Date Issued: 2015
- Authors: Mqaba, Mzuyanda Victor
- Date: 2015
- Subjects: Cooperative societies -- South Africa -- Eastern Cape Producer cooperatives -- South Africa -- Eastern Cape Agriculture, Cooperative -- South Africa -- Eastern Cape Sustainable development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Com (Business Management)
- Identifier: http://hdl.handle.net/10353/1612 , vital:27488
- Description: This study investigated the impact of government support on growth, survival and performance of agricultural cooperatives in selected areas of Eastern Cape Province of South Africa. The objectives of this empirical study were to examine (1) the impact of government support on growth of cooperatives, (2) assess the impact of government support on the performance of cooperatives, (3) reviewing the impact of government support on survival of cooperatives. A total sample of 157 agricultural cooperatives which consisted of poultry, maize, goat, nursery, sheep and vegetable coops was used. Stratified random sampling technique was used and a self-administered questionnaire used to gather primary data. The primary data of the study was gathered from the cooperatives managers only as they were the targeted respondents. Gathered data went through factor analysis, anova test and correlation analysis for the statistical analysis purposefully to arrive in study findings and conclusion. The findings of the study drawn from the 66% response rate concluded that government support has a statistical significant impact on growth of cooperatives. The study also indicated that government support has a significant impact on the survival of cooperatives. It is also reported that the performance of cooperatives is significantly impacted positively by government support. The findings of the study also indicated that agricultural cooperatives are not satisfied with the present government support.
- Full Text:
- Date Issued: 2015
Recycling as a strategy for environmental management in Cofimvaba
- Authors: Mniki, Yolisa Helen
- Date: 2015
- Subjects: Community development -- South Africa -- Eastern Cape Recycling (Waste, etc.) -- South Africa -- Eastern Cape Environmental management -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/12614 , vital:27099
- Description: The success or failure of a local municipality is measured by the efficient provision of basic services to communities within the area of jurisdiction. Waste management is one of the basic services that pose serious environmental challenges. Various strategies have been developed as a means of waste management and recycling is a popular strategy as it has the potential to foster relations between the municipality and the community. Studies by the Department of environmental Affairs have confirmed that the delivery of waste management services by municipalities has capacity constraints including, but not limited to, landfill site operations, waste collection, processing and disposal, and waste management hierarchy (Department of Environmental Affairs, 2008). This research is undertaken to establish how recycling can be effective in environmental management. The findings emphasise strongly, the high level of awareness that communities have on recycling; however there is a need for intensive resource support for the community initiatives to have the desired impact.
- Full Text:
- Date Issued: 2015
- Authors: Mniki, Yolisa Helen
- Date: 2015
- Subjects: Community development -- South Africa -- Eastern Cape Recycling (Waste, etc.) -- South Africa -- Eastern Cape Environmental management -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/12614 , vital:27099
- Description: The success or failure of a local municipality is measured by the efficient provision of basic services to communities within the area of jurisdiction. Waste management is one of the basic services that pose serious environmental challenges. Various strategies have been developed as a means of waste management and recycling is a popular strategy as it has the potential to foster relations between the municipality and the community. Studies by the Department of environmental Affairs have confirmed that the delivery of waste management services by municipalities has capacity constraints including, but not limited to, landfill site operations, waste collection, processing and disposal, and waste management hierarchy (Department of Environmental Affairs, 2008). This research is undertaken to establish how recycling can be effective in environmental management. The findings emphasise strongly, the high level of awareness that communities have on recycling; however there is a need for intensive resource support for the community initiatives to have the desired impact.
- Full Text:
- Date Issued: 2015
Development of high performance computing cluster for evaluation of sequence alignment algorithms
- Authors: Ngxande, Mkhuseli
- Date: 2015
- Language: English
- Type: Thesis , Masters , MSc (Computer Science)
- Identifier: vital:11399 , http://hdl.handle.net/10353/d1020163
- Description: As the biological databases are increasing rapidly, there is a challenge for both Biologists and Computer Scientists to develop algorithms and databases to manage the increasing data. There are many algorithms developed to align the sequences stored in biological databases - some take time to process the data while others are inefficient to produce reasonable results. As more data is generated, and time consuming algorithms are developed to handle them, there is a need for specialized computers to handle the computations. Researchers are typically limited by the computational power of their computers. High Performance Computing (HPC) field addresses this challenge and can be used in a cost-effective manner where there is no need for expensive equipment, instead old computers can be used together to form a powerful system. This is the premise of this research, wherein the setup of a low-cost Beowulf cluster is explored, with the subsequent evaluation of its performance for processing sequent alignment algorithms. A mixed method methodology is used in this dissertation, which consists of literature study, theoretical and practise based system. This mixed method methodology also have a proof and concept where the Beowulf cluster is designed and implemented to perform the sequence alignment algorithms and also the performance test. This dissertation firstly gives an overview of sequence alignment algorithms that are already developed and also highlights their timeline. A presentation of the design and implementation of the Beowulf Cluster is highlighted and this is followed by the experiments on the baseline performance of the cluster. A detailed timeline of the sequence alignment algorithms is given and also the comparison between ClustalW-MPI and T-Coffee (Tree-based Consistency Objective Function For alignment Evaluation) algorithm is presented as part of the findings in the research study. The efficiency of the cluster was observed to be 19.8%, this percentage is unexpected because the predicted efficiency is 83.3%, which is found in the theoretical cluster calculator. The theoretical performance of the cluster showed a high performance as compared with the experimental performance, this is attributable to the slow network, which was 100Mbps, low processor speed of 2.50 GHz, and low memory of 2 Gigabytes.
- Full Text:
- Date Issued: 2015
- Authors: Ngxande, Mkhuseli
- Date: 2015
- Language: English
- Type: Thesis , Masters , MSc (Computer Science)
- Identifier: vital:11399 , http://hdl.handle.net/10353/d1020163
- Description: As the biological databases are increasing rapidly, there is a challenge for both Biologists and Computer Scientists to develop algorithms and databases to manage the increasing data. There are many algorithms developed to align the sequences stored in biological databases - some take time to process the data while others are inefficient to produce reasonable results. As more data is generated, and time consuming algorithms are developed to handle them, there is a need for specialized computers to handle the computations. Researchers are typically limited by the computational power of their computers. High Performance Computing (HPC) field addresses this challenge and can be used in a cost-effective manner where there is no need for expensive equipment, instead old computers can be used together to form a powerful system. This is the premise of this research, wherein the setup of a low-cost Beowulf cluster is explored, with the subsequent evaluation of its performance for processing sequent alignment algorithms. A mixed method methodology is used in this dissertation, which consists of literature study, theoretical and practise based system. This mixed method methodology also have a proof and concept where the Beowulf cluster is designed and implemented to perform the sequence alignment algorithms and also the performance test. This dissertation firstly gives an overview of sequence alignment algorithms that are already developed and also highlights their timeline. A presentation of the design and implementation of the Beowulf Cluster is highlighted and this is followed by the experiments on the baseline performance of the cluster. A detailed timeline of the sequence alignment algorithms is given and also the comparison between ClustalW-MPI and T-Coffee (Tree-based Consistency Objective Function For alignment Evaluation) algorithm is presented as part of the findings in the research study. The efficiency of the cluster was observed to be 19.8%, this percentage is unexpected because the predicted efficiency is 83.3%, which is found in the theoretical cluster calculator. The theoretical performance of the cluster showed a high performance as compared with the experimental performance, this is attributable to the slow network, which was 100Mbps, low processor speed of 2.50 GHz, and low memory of 2 Gigabytes.
- Full Text:
- Date Issued: 2015