An investigation of the South African land reform process from a conflict resolution perspective
- Authors: Wächter, Felix
- Date: 2010
- Subjects: Land reform -- South Africa , Land tenure -- South Africa , Dispute resolution (Law) -- South Africa
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: vital:8166 , http://hdl.handle.net/10948/1272 , Land reform -- South Africa , Land tenure -- South Africa , Dispute resolution (Law) -- South Africa
- Description: This research study aims to investigate the South African Land Reform process from a conflict resolution perspective. According to Burton’s basic human needs theory deep-rooted social conflict will occur wherever social institutions neglect universal basic human needs. Excess to land and land tenure are considered basic human needs because they provide landowners with food, shelter and security. In absence of an extensive welfare state, land ownership fulfils the role of a social safety network, particularly in African countries. Consequently, an equal distribution of land is needed in order to enable the majority of South Africans to fulfil their basic human needs. The instrument chosen for correcting the inequalities in land distribution are the three components of the South African land reform programme namely tenure reform, restitution and redistribution. The South African Land Reform Programme was largely influenced by the World Bank’s ‘Willing-Seller Willing- Buyer’ or ‘Negotiated Land Reform Approach’. Nevertheless, the South African model differs from the original concept by the World Bank in some aspects. The outcome of the Land Reform Process is analysed and evaluated by the on-going evaluation approach. All sources used in this research are open to the public and published either on official websites or in hard cover version in reports and articles. The results of this investigation indicate that the target of redistributing 30% of white-owned agricultural land by the year 2014 is not going to be accomplished. Nevertheless, the settlement of claims can be considered a success story although most of the claims were settled by means of cash compensation instead of actual land transfer. Furthermore, a change in the land acquisition policy from a demand-led approach based on the negotiated land reform principle towards a more static, state-led, top-down approach has been identified as well as shortcomings in the post-settlement support of new landowners. To put it briefly, the land reform process in toto is about to fail and a chance of reducing the enormous conflict potential given away. Furthermore, the conflict potential will increase due to the failures in providing the poor and rural masses with access to land.
- Full Text:
- Date Issued: 2010
- Authors: Wächter, Felix
- Date: 2010
- Subjects: Land reform -- South Africa , Land tenure -- South Africa , Dispute resolution (Law) -- South Africa
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: vital:8166 , http://hdl.handle.net/10948/1272 , Land reform -- South Africa , Land tenure -- South Africa , Dispute resolution (Law) -- South Africa
- Description: This research study aims to investigate the South African Land Reform process from a conflict resolution perspective. According to Burton’s basic human needs theory deep-rooted social conflict will occur wherever social institutions neglect universal basic human needs. Excess to land and land tenure are considered basic human needs because they provide landowners with food, shelter and security. In absence of an extensive welfare state, land ownership fulfils the role of a social safety network, particularly in African countries. Consequently, an equal distribution of land is needed in order to enable the majority of South Africans to fulfil their basic human needs. The instrument chosen for correcting the inequalities in land distribution are the three components of the South African land reform programme namely tenure reform, restitution and redistribution. The South African Land Reform Programme was largely influenced by the World Bank’s ‘Willing-Seller Willing- Buyer’ or ‘Negotiated Land Reform Approach’. Nevertheless, the South African model differs from the original concept by the World Bank in some aspects. The outcome of the Land Reform Process is analysed and evaluated by the on-going evaluation approach. All sources used in this research are open to the public and published either on official websites or in hard cover version in reports and articles. The results of this investigation indicate that the target of redistributing 30% of white-owned agricultural land by the year 2014 is not going to be accomplished. Nevertheless, the settlement of claims can be considered a success story although most of the claims were settled by means of cash compensation instead of actual land transfer. Furthermore, a change in the land acquisition policy from a demand-led approach based on the negotiated land reform principle towards a more static, state-led, top-down approach has been identified as well as shortcomings in the post-settlement support of new landowners. To put it briefly, the land reform process in toto is about to fail and a chance of reducing the enormous conflict potential given away. Furthermore, the conflict potential will increase due to the failures in providing the poor and rural masses with access to land.
- Full Text:
- Date Issued: 2010
An investigation of the use of social media news releases to create dialogue around brands
- Authors: Barnard, Marieka Helen
- Date: 2010
- Subjects: Social marketing -- South Africa , Social media -- South Africa -- Marketing , Branding (Marketing) -- South Africa , Brand name products -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8389 , http://hdl.handle.net/10948/1264 , Social marketing -- South Africa , Social media -- South Africa -- Marketing , Branding (Marketing) -- South Africa , Brand name products -- South Africa
- Description: This study aimed to provide South African public relations professionals with insights into the use of the Social Media News Release (SMNR) as a PR 2.0 tool that has the potential to elicit consumer-driven dialogue in social media channels about information, a brand, product or service advocated by the particular social media news release. Drawing on literature from fields such as public relations, new media studies, marketing, and consumer studies, an analysis of two South African SMNR case studies was conducted including the Samsung Omnia i900 SMNR and the Standard Bank Pro20 2008 and 2009 SMNRs. An in-depth content analysis applying limited designations analysis and detailed assertions analysis techniques was performed on selected content from the dedicated social media platforms linked to in the SMNRs to determine the origins, tone and thematic nature of communications on the platforms. A total of 2071 messages was analysed by means of content analysis across six social media platforms in the two case studies. In order to triangulate and support data, an online survey was conducted with 43 social media users as respondents in order to determine social media users’ interactions with the social media platforms and SMNRs. The study found that the social media platforms linked to the SMNRs in the two case studies largely successfully elicited and hosted social media user-generated conversations about the themes advocated by the SMNR. The Blog, Facebook and YouTube platforms proved to be most successful in generating social media conversation, while the Flickr, Twitter and Delicious platforms were less effective among South African consumers. It was found that social media news releases are likely to elicit consumer-driven dialogue on the dedicated social media platforms linked to by the SMNRs if the platforms are managed correctly. Factors that were identified as important management considerations include ensuring the relevancy and timeliness of content on the social media platforms, the involvement by the platform creator in stimulating and encouraging participation from social media users where necessary, as well as the swift response to user comments, deleting of spam comments and pro-active management of negative perceptions that may arise from user comments on the platforms.
- Full Text:
- Date Issued: 2010
- Authors: Barnard, Marieka Helen
- Date: 2010
- Subjects: Social marketing -- South Africa , Social media -- South Africa -- Marketing , Branding (Marketing) -- South Africa , Brand name products -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8389 , http://hdl.handle.net/10948/1264 , Social marketing -- South Africa , Social media -- South Africa -- Marketing , Branding (Marketing) -- South Africa , Brand name products -- South Africa
- Description: This study aimed to provide South African public relations professionals with insights into the use of the Social Media News Release (SMNR) as a PR 2.0 tool that has the potential to elicit consumer-driven dialogue in social media channels about information, a brand, product or service advocated by the particular social media news release. Drawing on literature from fields such as public relations, new media studies, marketing, and consumer studies, an analysis of two South African SMNR case studies was conducted including the Samsung Omnia i900 SMNR and the Standard Bank Pro20 2008 and 2009 SMNRs. An in-depth content analysis applying limited designations analysis and detailed assertions analysis techniques was performed on selected content from the dedicated social media platforms linked to in the SMNRs to determine the origins, tone and thematic nature of communications on the platforms. A total of 2071 messages was analysed by means of content analysis across six social media platforms in the two case studies. In order to triangulate and support data, an online survey was conducted with 43 social media users as respondents in order to determine social media users’ interactions with the social media platforms and SMNRs. The study found that the social media platforms linked to the SMNRs in the two case studies largely successfully elicited and hosted social media user-generated conversations about the themes advocated by the SMNR. The Blog, Facebook and YouTube platforms proved to be most successful in generating social media conversation, while the Flickr, Twitter and Delicious platforms were less effective among South African consumers. It was found that social media news releases are likely to elicit consumer-driven dialogue on the dedicated social media platforms linked to by the SMNRs if the platforms are managed correctly. Factors that were identified as important management considerations include ensuring the relevancy and timeliness of content on the social media platforms, the involvement by the platform creator in stimulating and encouraging participation from social media users where necessary, as well as the swift response to user comments, deleting of spam comments and pro-active management of negative perceptions that may arise from user comments on the platforms.
- Full Text:
- Date Issued: 2010
An investigation of turnover and retention factors of health professional staff within the Eastern Cape Department of Health
- Authors: Mrara, Msibulele Theophilus
- Date: 2010
- Subjects: Eastern Cape (South Africa) -- Department of Health Medical personnel -- South Africa -- Eastern Cape Hospitals -- Officials and employees -- Turnover -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:754 , http://hdl.handle.net/10962/d1003875
- Description: Health Professionals are critical in the provision of health services, more especially when it comes to nurses who are next to the patient most of the time. It is critically important for the Eastern Cape Department of Health to ensure that skilled health professionals such as doctors, pharmacists, nurses and the like are retained and the staff turnover regarding this category of staff is appropriately managed. The difficulty to attract and retain health professionals is negatively affecting service delivery in the Eastern Cape department of Health and leaves the department with an unacceptably high vacancy rate. This often put more of a burden on to the health professionals who remain within the organization. Some of them will end up leaving the organization. There is a great shortage of health professionals in South Africa and it becomes easier for the health professionals to get employment elsewhere, particularly in the private sector which appears to have a competitive advantage as compared to the public sector. In this study, both quantitative and qualitative methods were used to gather information through the utilization of a questionnaire and interviews were conducted mainly to confirm the results obtained. The results of the study have assisted to reflect factors that could be influencing the health professionals to leave health facilities of the Eastern Cape Department of Health. The respondents were drawn from the two areas within the Health Department, and these are, Mthatha and Port Elizabeth areas. One hundred (100) questionnaires were issued to the health professionals and sixty three responded. Documents that were received from the department were helpful in determining the turnover rate. The study has revealed that the Eastern Cape Department of Health may succeed in retaining the health professionals if they can be made to feel that their job is important. It appears that health professionals would like to be given enough opportunity to perform their functions and participate in the decision making processes of the department. Some factors may be contributing to the staff turnover and these are, lack of career opportunities to develop, challenges in the workplace, conflict with the management and colleagues. It is always important for the organizations to recognize its employees by giving them space to practice their profession and create a comfortable workplace that could have an impact in influencing the employee to remain within the organization. Employee turnover can be minimized, if employees can be exposed to a healthy workplace environment that will assist if fostering happiness, and in the process, enhance their motivation. It is imperative for the Eastern Cape Department of Health to focus on the training and development of its employees in order to increase the efficiency and competitiveness. As the employees gain the necessary skills to perform their job, productivity may improve. The performance of the employees should be properly managed, and the resultant incentives and rewards must be fairly distributed. This could promote harmony in the workplace and that could help in building relationships among employees. If employees are satisfied, there is an increased chance that they will stay within the organization and it becomes difficult for other competitors to attract them. Employees must be given adequate space to participate in the decision making processes of the organization, and by doing so, their loyalty to the organization could be increased.
- Full Text:
- Date Issued: 2010
- Authors: Mrara, Msibulele Theophilus
- Date: 2010
- Subjects: Eastern Cape (South Africa) -- Department of Health Medical personnel -- South Africa -- Eastern Cape Hospitals -- Officials and employees -- Turnover -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:754 , http://hdl.handle.net/10962/d1003875
- Description: Health Professionals are critical in the provision of health services, more especially when it comes to nurses who are next to the patient most of the time. It is critically important for the Eastern Cape Department of Health to ensure that skilled health professionals such as doctors, pharmacists, nurses and the like are retained and the staff turnover regarding this category of staff is appropriately managed. The difficulty to attract and retain health professionals is negatively affecting service delivery in the Eastern Cape department of Health and leaves the department with an unacceptably high vacancy rate. This often put more of a burden on to the health professionals who remain within the organization. Some of them will end up leaving the organization. There is a great shortage of health professionals in South Africa and it becomes easier for the health professionals to get employment elsewhere, particularly in the private sector which appears to have a competitive advantage as compared to the public sector. In this study, both quantitative and qualitative methods were used to gather information through the utilization of a questionnaire and interviews were conducted mainly to confirm the results obtained. The results of the study have assisted to reflect factors that could be influencing the health professionals to leave health facilities of the Eastern Cape Department of Health. The respondents were drawn from the two areas within the Health Department, and these are, Mthatha and Port Elizabeth areas. One hundred (100) questionnaires were issued to the health professionals and sixty three responded. Documents that were received from the department were helpful in determining the turnover rate. The study has revealed that the Eastern Cape Department of Health may succeed in retaining the health professionals if they can be made to feel that their job is important. It appears that health professionals would like to be given enough opportunity to perform their functions and participate in the decision making processes of the department. Some factors may be contributing to the staff turnover and these are, lack of career opportunities to develop, challenges in the workplace, conflict with the management and colleagues. It is always important for the organizations to recognize its employees by giving them space to practice their profession and create a comfortable workplace that could have an impact in influencing the employee to remain within the organization. Employee turnover can be minimized, if employees can be exposed to a healthy workplace environment that will assist if fostering happiness, and in the process, enhance their motivation. It is imperative for the Eastern Cape Department of Health to focus on the training and development of its employees in order to increase the efficiency and competitiveness. As the employees gain the necessary skills to perform their job, productivity may improve. The performance of the employees should be properly managed, and the resultant incentives and rewards must be fairly distributed. This could promote harmony in the workplace and that could help in building relationships among employees. If employees are satisfied, there is an increased chance that they will stay within the organization and it becomes difficult for other competitors to attract them. Employees must be given adequate space to participate in the decision making processes of the organization, and by doing so, their loyalty to the organization could be increased.
- Full Text:
- Date Issued: 2010
An investigation of ward committees as a means for structured public participation: the case of the Knysna local municipality
- Authors: Ngqele, Sandile Wiseman
- Date: 2010
- Subjects: Local government -- South Africa -- Knysna -- Citizen participation , Municipal government -- South Africa. -- Knysna -- Citizen participation , Municipal government -- South Africa -- Western Cape , Local government -- South Africa -- Western Cape
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:8208 , http://hdl.handle.net/10948/1143 , Local government -- South Africa -- Knysna -- Citizen participation , Municipal government -- South Africa. -- Knysna -- Citizen participation , Municipal government -- South Africa -- Western Cape , Local government -- South Africa -- Western Cape
- Description: This study investigated the effectiveness of Ward Committees in co-ordinating and facilitating authentic public participation processes at local government levels. This study focused specifically on the Knysna Local Municipality. Before 1994 the majority of South Africans had never had the vote, and therefore, had not had the opportunity of participating in South Africa’s governance and administration (Hilliard and Kemp, 1999:40). In this governance system, local government was the lowest tier of government in a strict hierarchical structure; and it had no constitutional standing of its own, but derived its powers from the two superior tiers of government, namely national and provincial. The local government elections of 5 December 2000 in South Africa provided municipalities with a historic opportunity to transform local government to meet the needs of the country for the next century. The local government transformation process (in tandem with the demarcation process that established the new municipal boundaries) introduced more developmental responsibilities to municipalities. In addition, this further implied that local government became an autonomous sphere of government with its own original powers and a broad developmental mandate. This had profound implications for local governance. An important element of the current local government system is the promotion of local democracy and participation in local governance. Public participation is an integral part of local democracy and is a legislative requirement for the local community to be drawn into the v municipal processes through inter alia: Integrated Development Planning (IDP), budgeting, performance management and Ward Committees. Although the ‘old’ South African local government system did not have an extensive history in ensuring a culture of actively engaging communities in developmental issues, the IDP under a Developmental Local Government (DLG) system now presents a framework through which such a culture can be established. The Ward Committees in particular, play a critical role in linking community needs with municipal planning processes. In South African local government the commitment to public participation is reflected in a host of laws and policy documents (namely the Local Government: Municipal Systems Act 2000 (Act 32 of 2000), Local Government: Municipal Structures Act 1998 (Act 117 of 1998), the Constitution of the Republic of South Africa , 1996). These laws and policies are intended to be realised through development initiatives that require formal participatory processes and institutions in local governance. Since 2001 Ward Committees have emerged as a key institutional mechanism intended to contribute towards bringing about people-centred, participatory and democratic local governance. The rationale for Ward Committees is to supplement the roles of the elected Ward Councillors by creating a link between communities and the political and administrative structures of municipalities. These Ward Committees have been established in the majority of wards in municipalities across the country in line with the vi requirements of the Local Government: Municipal Structures Act,1998 (Act 117 of 1998) which stipulates that: Only metropolitan and local municipalities of certain types may have Ward Committees. The main objective of the study was to investigate the overall functioning of Ward Committees within the Knysna Local Municipality and to determine their impact on democratic local governance thus far. The study will carry out an investigation into the effectiveness of Ward Committees: whether they are useful conduits for public participation in local governance; whether they are inherently capable of playing the critical role expected of them; and whether they actually create opportunities for real power-sharing between the Knysna Local Municipality and its communities. The study’s main objective stated above was achieved by breaking it down into realisable objectives, namely: • A brief background of the Knysna Local Municipality, and in particular, an outline of its institutional arrangements and its Ward Committees in general. • An evaluation of the theoretical and legislative framework of public participation and the Ward Committee System in local government. • An analysis of the practical performance of Ward Committees in the Knysna Local Municipality and to provide a research report on the empirical findings. • Recommendations aimed at improving the effectiveness of Ward Committees at local government levels in general, and in particular, in the Knysna Local Municipality. The hypothetical position of this study was that the maximum utilisation of Ward Committees as a means for public participation processes at local government levels, specifically in the Knysna Local Municipality, could improve communication between local municipalities and the public. Furthermore, this would also contribute towards the speedy delivery of services to communities, as Ward Committees could serve as the Local Municipality’s strategic partners in Council’s projects. Ward Committees should therefore be utilised to enhance a constructive interaction between a municipality and its local community. This position was premised on the fact that authentic and empowering participation can be established at local government levels if Ward Committees act as a foundation for development and Ward Committee Members as development change agents in their respective wards
- Full Text:
- Date Issued: 2010
- Authors: Ngqele, Sandile Wiseman
- Date: 2010
- Subjects: Local government -- South Africa -- Knysna -- Citizen participation , Municipal government -- South Africa. -- Knysna -- Citizen participation , Municipal government -- South Africa -- Western Cape , Local government -- South Africa -- Western Cape
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:8208 , http://hdl.handle.net/10948/1143 , Local government -- South Africa -- Knysna -- Citizen participation , Municipal government -- South Africa. -- Knysna -- Citizen participation , Municipal government -- South Africa -- Western Cape , Local government -- South Africa -- Western Cape
- Description: This study investigated the effectiveness of Ward Committees in co-ordinating and facilitating authentic public participation processes at local government levels. This study focused specifically on the Knysna Local Municipality. Before 1994 the majority of South Africans had never had the vote, and therefore, had not had the opportunity of participating in South Africa’s governance and administration (Hilliard and Kemp, 1999:40). In this governance system, local government was the lowest tier of government in a strict hierarchical structure; and it had no constitutional standing of its own, but derived its powers from the two superior tiers of government, namely national and provincial. The local government elections of 5 December 2000 in South Africa provided municipalities with a historic opportunity to transform local government to meet the needs of the country for the next century. The local government transformation process (in tandem with the demarcation process that established the new municipal boundaries) introduced more developmental responsibilities to municipalities. In addition, this further implied that local government became an autonomous sphere of government with its own original powers and a broad developmental mandate. This had profound implications for local governance. An important element of the current local government system is the promotion of local democracy and participation in local governance. Public participation is an integral part of local democracy and is a legislative requirement for the local community to be drawn into the v municipal processes through inter alia: Integrated Development Planning (IDP), budgeting, performance management and Ward Committees. Although the ‘old’ South African local government system did not have an extensive history in ensuring a culture of actively engaging communities in developmental issues, the IDP under a Developmental Local Government (DLG) system now presents a framework through which such a culture can be established. The Ward Committees in particular, play a critical role in linking community needs with municipal planning processes. In South African local government the commitment to public participation is reflected in a host of laws and policy documents (namely the Local Government: Municipal Systems Act 2000 (Act 32 of 2000), Local Government: Municipal Structures Act 1998 (Act 117 of 1998), the Constitution of the Republic of South Africa , 1996). These laws and policies are intended to be realised through development initiatives that require formal participatory processes and institutions in local governance. Since 2001 Ward Committees have emerged as a key institutional mechanism intended to contribute towards bringing about people-centred, participatory and democratic local governance. The rationale for Ward Committees is to supplement the roles of the elected Ward Councillors by creating a link between communities and the political and administrative structures of municipalities. These Ward Committees have been established in the majority of wards in municipalities across the country in line with the vi requirements of the Local Government: Municipal Structures Act,1998 (Act 117 of 1998) which stipulates that: Only metropolitan and local municipalities of certain types may have Ward Committees. The main objective of the study was to investigate the overall functioning of Ward Committees within the Knysna Local Municipality and to determine their impact on democratic local governance thus far. The study will carry out an investigation into the effectiveness of Ward Committees: whether they are useful conduits for public participation in local governance; whether they are inherently capable of playing the critical role expected of them; and whether they actually create opportunities for real power-sharing between the Knysna Local Municipality and its communities. The study’s main objective stated above was achieved by breaking it down into realisable objectives, namely: • A brief background of the Knysna Local Municipality, and in particular, an outline of its institutional arrangements and its Ward Committees in general. • An evaluation of the theoretical and legislative framework of public participation and the Ward Committee System in local government. • An analysis of the practical performance of Ward Committees in the Knysna Local Municipality and to provide a research report on the empirical findings. • Recommendations aimed at improving the effectiveness of Ward Committees at local government levels in general, and in particular, in the Knysna Local Municipality. The hypothetical position of this study was that the maximum utilisation of Ward Committees as a means for public participation processes at local government levels, specifically in the Knysna Local Municipality, could improve communication between local municipalities and the public. Furthermore, this would also contribute towards the speedy delivery of services to communities, as Ward Committees could serve as the Local Municipality’s strategic partners in Council’s projects. Ward Committees should therefore be utilised to enhance a constructive interaction between a municipality and its local community. This position was premised on the fact that authentic and empowering participation can be established at local government levels if Ward Committees act as a foundation for development and Ward Committee Members as development change agents in their respective wards
- Full Text:
- Date Issued: 2010
An ion imprinted polymer for the selective extraction of mercury (II) ions in aqueous media
- Authors: Batlokwa, Bareki Shima
- Date: 2010 , 2013-07-18
- Subjects: Mercury , Metal ions , Imprinted polymers , Polymerization
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4294 , http://hdl.handle.net/10962/d1004541 , Mercury , Metal ions , Imprinted polymers , Polymerization
- Description: This thesis presents the application of an imprinted mercury(lI) polymer that we synthesized by copolymerizing the functional and cross-linking monomers, N'-[3-(Trimethoxysilyl)propyl] diethylenetriamine (TPET) and tetraethylorthosilicate (TEOS) in the presence of mercury (II) ions as template. A bulk polymerization method following a double-imprinting procedure and employing hexadecyltrimethylammonium bromide (CTAB), as a second template to improve the efficiency of the polymer was employed in the synthesis. The imprinted polymer particles were characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and their average size determined by screen analysis using standard test sieves. The relative selective coefficients (k') of the imprinted polymer evaluated from selective binding studies between Hg ²⁺and Cu²⁺ or Hg²⁺ and Cd²⁺, were 10588 and 3147, respectively. These values indicated highly favored Hg²⁺ extractions over the two competing ions. Application of the polymer to various real water samples (tap, sea, river, pulverized coal solution, treated and untreated sewerage from the vicinity of Grahamstown in South Africa) showed high extraction efficiencies (EEs) of Hg²⁺ ions; (over 84% in all cases) as evaluated from the detected unextracted Hg²⁺ ions by inductively coupled plasma optical emission spectroscopy (ICP-OES). The limit of detection (LOD, 3ơ) of the method was evaluated to be 0.036 ng ml⁻¹ and generally the data (n=10) had percentage relative standard deviation (%RSD) of less than 4%. These findings indicate that the double-imprinted polymer has potential to be used as an efficient extraction material for the selective pre-concentration of mercury(lI) ions in aqueous environments. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2010
- Authors: Batlokwa, Bareki Shima
- Date: 2010 , 2013-07-18
- Subjects: Mercury , Metal ions , Imprinted polymers , Polymerization
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4294 , http://hdl.handle.net/10962/d1004541 , Mercury , Metal ions , Imprinted polymers , Polymerization
- Description: This thesis presents the application of an imprinted mercury(lI) polymer that we synthesized by copolymerizing the functional and cross-linking monomers, N'-[3-(Trimethoxysilyl)propyl] diethylenetriamine (TPET) and tetraethylorthosilicate (TEOS) in the presence of mercury (II) ions as template. A bulk polymerization method following a double-imprinting procedure and employing hexadecyltrimethylammonium bromide (CTAB), as a second template to improve the efficiency of the polymer was employed in the synthesis. The imprinted polymer particles were characterized by Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and their average size determined by screen analysis using standard test sieves. The relative selective coefficients (k') of the imprinted polymer evaluated from selective binding studies between Hg ²⁺and Cu²⁺ or Hg²⁺ and Cd²⁺, were 10588 and 3147, respectively. These values indicated highly favored Hg²⁺ extractions over the two competing ions. Application of the polymer to various real water samples (tap, sea, river, pulverized coal solution, treated and untreated sewerage from the vicinity of Grahamstown in South Africa) showed high extraction efficiencies (EEs) of Hg²⁺ ions; (over 84% in all cases) as evaluated from the detected unextracted Hg²⁺ ions by inductively coupled plasma optical emission spectroscopy (ICP-OES). The limit of detection (LOD, 3ơ) of the method was evaluated to be 0.036 ng ml⁻¹ and generally the data (n=10) had percentage relative standard deviation (%RSD) of less than 4%. These findings indicate that the double-imprinted polymer has potential to be used as an efficient extraction material for the selective pre-concentration of mercury(lI) ions in aqueous environments. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2010
An organization development intervention in a Namibian rural school in Ohanguena region
- Authors: Kashikatu, Lukas
- Date: 2010
- Subjects: Action research in education -- Namibia Organizational change -- Namibia School improvement programs -- Namibia Educational change -- Namibia -- Case studies Rural schools -- Namibia School management and organization -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1684 , http://hdl.handle.net/10962/d1003567
- Description: Post independent Namibia adopted a decentralization policy which involved the transfer of decision-making powers and administrative authority from central government to government institutions, including schools, with a view to improving quality. However, despite new educational policies, Namibian educators continue to operate in a non-participatory manner and are unprepared for their role as change agents. This has created tension between the espoused benefits of decentralizing and the reality in schools. In such a turbulent situation schools need to be helped to understand the complexity of change in order to adapt, and OD plays a crucial role in this regard. OD is a consciously thought of and systematically implemented organization-wide improvement effort which aims at increasing organizational effectiveness and health through action research. Rather than a top-down change approach, the OD practice adopts a bottom-up approach to change. This study introduced and investigated an OD intervention in a Namibian rural school in Ohanguena Education Region, with the purpose of exploring participants’ perceptions and experience of the process and of the possible short-term outcome of the intervention. Its findings could be of significance to educators, organizations and future OD esearchers. The study is an action research case study located in the interpretive and critical paradigms. Multiple data collection tools were used during this study, namely observations, structured one-to-one interviews and focus group interviews. Interpretive analysis was used as the data analysis approach. The study found that despite OD being new to participants, it was embraced as a change strategy as it made significant impact on their understanding of organizations and conception of change which is radically different from the common top-down approach to change. The intervention further empowered participants with new skills of initiating change and problem-solving strategies. Apart from that, the intervention yielded a positive short-term outcome which motivated participants to adopt and apply OD in the future without underestimating challenges associated with the process.
- Full Text:
- Date Issued: 2010
- Authors: Kashikatu, Lukas
- Date: 2010
- Subjects: Action research in education -- Namibia Organizational change -- Namibia School improvement programs -- Namibia Educational change -- Namibia -- Case studies Rural schools -- Namibia School management and organization -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1684 , http://hdl.handle.net/10962/d1003567
- Description: Post independent Namibia adopted a decentralization policy which involved the transfer of decision-making powers and administrative authority from central government to government institutions, including schools, with a view to improving quality. However, despite new educational policies, Namibian educators continue to operate in a non-participatory manner and are unprepared for their role as change agents. This has created tension between the espoused benefits of decentralizing and the reality in schools. In such a turbulent situation schools need to be helped to understand the complexity of change in order to adapt, and OD plays a crucial role in this regard. OD is a consciously thought of and systematically implemented organization-wide improvement effort which aims at increasing organizational effectiveness and health through action research. Rather than a top-down change approach, the OD practice adopts a bottom-up approach to change. This study introduced and investigated an OD intervention in a Namibian rural school in Ohanguena Education Region, with the purpose of exploring participants’ perceptions and experience of the process and of the possible short-term outcome of the intervention. Its findings could be of significance to educators, organizations and future OD esearchers. The study is an action research case study located in the interpretive and critical paradigms. Multiple data collection tools were used during this study, namely observations, structured one-to-one interviews and focus group interviews. Interpretive analysis was used as the data analysis approach. The study found that despite OD being new to participants, it was embraced as a change strategy as it made significant impact on their understanding of organizations and conception of change which is radically different from the common top-down approach to change. The intervention further empowered participants with new skills of initiating change and problem-solving strategies. Apart from that, the intervention yielded a positive short-term outcome which motivated participants to adopt and apply OD in the future without underestimating challenges associated with the process.
- Full Text:
- Date Issued: 2010
Analysing the impact of a selected economic activity on Oudsthoorn's economy
- Authors: Van Schalkwyk, Aren
- Date: 2010
- Subjects: Economic development projects -- South Africa , Economic growth -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8694 , http://hdl.handle.net/10948/1104 , Economic development projects -- South Africa , Economic growth -- South Africa
- Description: Property development, by its very nature is an element of the economy and can be regarded as a multifaceted business, encompassing activities that include the development of undeveloped land by constructing residential, commercial and industrial buildings, either for leasing or selling. Based on the aforesaid, property development therefore has direct, indirect and induced impacts on the economy. Economic impact refers to the effects, positive or negative, on the level of economic activity in a given area. Measuring economic impact requires a baseline assessment conducted before the activity (property development) occurs and a second, comparable assessment conducted after the activity (property development) occurs. By using the Input- Output Model methodology, various anticipated direct and indirect economic impacts can be quantified. These economic impacts are derived using an understanding of economic cause-effect relationships. The principle of cause-effect is that for any economic action, there can be a multitude of different economic reactions (effects). For the purposes of this treatise, the main cause/action is the implementation of the proposed Alphen Aan Den Rijn Retirement and Lifestyle Village development in Oudtshoorn. The result is a number of direct potential/probable effects, which also have a range of indirect potential/probable effects. Based on the findings of the Input-Output Model, it is clear that the implementation of Alphen will have significant positive socio-economic benefits, e.g. additional business sales, additional GGP and additional employment for the local and regional environment. To ensure that these positive impacts are maximised for the benefit of the overall economy of Oudtshoorn as well as the population of Oudtshoorn, management strategies and mechanisms pertaining to the following are suggested for incorporation into the development proposal: • Workplace Skills Plan; • Labour Contracts; • Service Carrying Capacity Management Plan; • Economic Sustainability; and • Social Sustainability.
- Full Text:
- Date Issued: 2010
- Authors: Van Schalkwyk, Aren
- Date: 2010
- Subjects: Economic development projects -- South Africa , Economic growth -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8694 , http://hdl.handle.net/10948/1104 , Economic development projects -- South Africa , Economic growth -- South Africa
- Description: Property development, by its very nature is an element of the economy and can be regarded as a multifaceted business, encompassing activities that include the development of undeveloped land by constructing residential, commercial and industrial buildings, either for leasing or selling. Based on the aforesaid, property development therefore has direct, indirect and induced impacts on the economy. Economic impact refers to the effects, positive or negative, on the level of economic activity in a given area. Measuring economic impact requires a baseline assessment conducted before the activity (property development) occurs and a second, comparable assessment conducted after the activity (property development) occurs. By using the Input- Output Model methodology, various anticipated direct and indirect economic impacts can be quantified. These economic impacts are derived using an understanding of economic cause-effect relationships. The principle of cause-effect is that for any economic action, there can be a multitude of different economic reactions (effects). For the purposes of this treatise, the main cause/action is the implementation of the proposed Alphen Aan Den Rijn Retirement and Lifestyle Village development in Oudtshoorn. The result is a number of direct potential/probable effects, which also have a range of indirect potential/probable effects. Based on the findings of the Input-Output Model, it is clear that the implementation of Alphen will have significant positive socio-economic benefits, e.g. additional business sales, additional GGP and additional employment for the local and regional environment. To ensure that these positive impacts are maximised for the benefit of the overall economy of Oudtshoorn as well as the population of Oudtshoorn, management strategies and mechanisms pertaining to the following are suggested for incorporation into the development proposal: • Workplace Skills Plan; • Labour Contracts; • Service Carrying Capacity Management Plan; • Economic Sustainability; and • Social Sustainability.
- Full Text:
- Date Issued: 2010
Analysis of the anti-cancer activity of novel indigenous algal compounds in breast cancer: towards the development of a model for screening anti-cancer stem cell activity
- Authors: Lawson, Jessica Clair
- Date: 2010
- Subjects: Breast -- Cancer , Breast -- Cancer -- Chemotherapy , Breast -- Cancer -- Treatment , Red algae , Brown algae , Algae -- Biotechnology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3925 , http://hdl.handle.net/10962/d1003984 , Breast -- Cancer , Breast -- Cancer -- Chemotherapy , Breast -- Cancer -- Treatment , Red algae , Brown algae , Algae -- Biotechnology
- Description: Breast cancer, the most common malignancy diagnosed in women, is one of the leading causes of death in women worldwide. In South Africa only 32% of women diagnosed with advanced breast cancer survive more than five years. The search for new chemotherapeutic agents capable of effectively treating breast cancer is therefore essential. Recent evidence supporting the cancer stem cell theory of cancer development for breast cancer challenges the current theories of cancer development and hence treatment. Cancer stem cells are a small subpopulation of tumour cells that possess properties of both cancer cells and stem cells and are believed to be the tumour-initiating population of many cancers. Cancer stem cells are inherently resistant to many chemotherapeutic agents and in this way have been associated with repopulation of tumours after chemotherapy. This phenomenon is proposed as a possible mechanism for cancer relapse after treatment. Cancer stem cells have also been implicated in metastasis, the major cause of mortality in cancer patients. Therefore, any treatment that is capable of targeting and removing breast cancer stem cells may have the theoretical potential to effectively treat breast cancer. However, there are currently no such treatments available for clinical use. We were provided access to a library of novel indigenous small molecules isolated from red and brown algae found off the Eastern Cape of South Africa. The aim of this project was to analyse the anti-cancer and anti-cancer stem cell properties of the compounds in this library and to identify „hit‟ compounds which could form the basis for future development into new anti-cancer drugs. Ten novel compounds of algal origin were tested for cytotoxicity, by determining their ability to inhibit the growth of MCF12A breast epithelial cells and MCF7 breast cancer cells using the colorimetric MTT [(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] cell proliferation assay. All but one of the compounds tested exhibited cytotoxicity towards the MCF7 cancer cell line, with IC50 values (the concentration of the compound that leads to a 50% inhibition in cell growth) of between 3 μM and 90 μM. The chemotherapeutic drug paclitaxel was used as a positive control. Four of the compounds (RUMB-001, RUMB-002, RUMB-007 and RUMB-010/saragaquinoic acid) were significantly more toxic to the MCF7 cancer cell line, than the „normal‟ MCF12A breast cells and were selected as priority compounds for further analyses. In addition, two other compounds were selected as priority compounds, one highly cytotoxic towards both MCF12A and MCF7 cell lines (RUMB-015) and one which was non toxic to either cell line (RUMB-017/018). Preliminary studies into the mechanism of cytotoxicity using Western blot analysis for poly (ADP-ribose) polymerase (PARP) cleavage and Hoechst 33342 immunostaining in MCF-7 cells were largely unsuccessful. The Hoechst 33342 immunostaining assay did provide tentative evidence that selected priority compounds were capable of inducing apoptosis, although these assays will need to be repeated using a less subjective assay to confirm the results. The priority compounds were subsequently investigated for their cytotoxic effect on the cancer stem cell-enriched side population in MCF7 cells. The ability of the priority compounds to selectively target the cancer stem cell containing side population was assessed using two complementary flow cytometry-based techniques – namely the Hoechst 33342-exclusion assay, and fluorescent immunostaining for the expression of the putative cancer stem cell marker, ABCG2+. The ABCG2+ staining assay was a novel technique developed during the course of this study. It remains to be fully validated, but it may provide a new and reliable way to identify and analyse cancer stem cell containing side population cells. The MCF7 cells were treated with the compounds and the proportion of putative cancer stem cells compared with the size of the population in untreated cells was assessed. Three compounds (RUMB-010, RUMB-015 and RUMB-017/018) capable of reducing the proportion of side population cells within the MCF7 cell line were identified. Taking these data together, we identified two potential „hit‟ compounds which should be prioritised for future research. These are compounds RUMB-010/sargaquinoic acid and RUMB-017/018. RUMB-010 is of interest as it was shown to target the putative cancer stem cell population, in addition to the bulk MCF7 tumour line, but was relatively less toxic to the „normal‟ MCF12A cell line. RUMB-017/018 is of interest due to the ability to selectively target the cancer stem cell enriched side population, while having little effect on the normal (MCF12A) or bulk tumour (MCF7) cell lines tested. These compounds will be important as „hit‟ compounds for drug development and as tool compounds to study cancer and cancer stem cell biology.
- Full Text:
- Date Issued: 2010
- Authors: Lawson, Jessica Clair
- Date: 2010
- Subjects: Breast -- Cancer , Breast -- Cancer -- Chemotherapy , Breast -- Cancer -- Treatment , Red algae , Brown algae , Algae -- Biotechnology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3925 , http://hdl.handle.net/10962/d1003984 , Breast -- Cancer , Breast -- Cancer -- Chemotherapy , Breast -- Cancer -- Treatment , Red algae , Brown algae , Algae -- Biotechnology
- Description: Breast cancer, the most common malignancy diagnosed in women, is one of the leading causes of death in women worldwide. In South Africa only 32% of women diagnosed with advanced breast cancer survive more than five years. The search for new chemotherapeutic agents capable of effectively treating breast cancer is therefore essential. Recent evidence supporting the cancer stem cell theory of cancer development for breast cancer challenges the current theories of cancer development and hence treatment. Cancer stem cells are a small subpopulation of tumour cells that possess properties of both cancer cells and stem cells and are believed to be the tumour-initiating population of many cancers. Cancer stem cells are inherently resistant to many chemotherapeutic agents and in this way have been associated with repopulation of tumours after chemotherapy. This phenomenon is proposed as a possible mechanism for cancer relapse after treatment. Cancer stem cells have also been implicated in metastasis, the major cause of mortality in cancer patients. Therefore, any treatment that is capable of targeting and removing breast cancer stem cells may have the theoretical potential to effectively treat breast cancer. However, there are currently no such treatments available for clinical use. We were provided access to a library of novel indigenous small molecules isolated from red and brown algae found off the Eastern Cape of South Africa. The aim of this project was to analyse the anti-cancer and anti-cancer stem cell properties of the compounds in this library and to identify „hit‟ compounds which could form the basis for future development into new anti-cancer drugs. Ten novel compounds of algal origin were tested for cytotoxicity, by determining their ability to inhibit the growth of MCF12A breast epithelial cells and MCF7 breast cancer cells using the colorimetric MTT [(3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide] cell proliferation assay. All but one of the compounds tested exhibited cytotoxicity towards the MCF7 cancer cell line, with IC50 values (the concentration of the compound that leads to a 50% inhibition in cell growth) of between 3 μM and 90 μM. The chemotherapeutic drug paclitaxel was used as a positive control. Four of the compounds (RUMB-001, RUMB-002, RUMB-007 and RUMB-010/saragaquinoic acid) were significantly more toxic to the MCF7 cancer cell line, than the „normal‟ MCF12A breast cells and were selected as priority compounds for further analyses. In addition, two other compounds were selected as priority compounds, one highly cytotoxic towards both MCF12A and MCF7 cell lines (RUMB-015) and one which was non toxic to either cell line (RUMB-017/018). Preliminary studies into the mechanism of cytotoxicity using Western blot analysis for poly (ADP-ribose) polymerase (PARP) cleavage and Hoechst 33342 immunostaining in MCF-7 cells were largely unsuccessful. The Hoechst 33342 immunostaining assay did provide tentative evidence that selected priority compounds were capable of inducing apoptosis, although these assays will need to be repeated using a less subjective assay to confirm the results. The priority compounds were subsequently investigated for their cytotoxic effect on the cancer stem cell-enriched side population in MCF7 cells. The ability of the priority compounds to selectively target the cancer stem cell containing side population was assessed using two complementary flow cytometry-based techniques – namely the Hoechst 33342-exclusion assay, and fluorescent immunostaining for the expression of the putative cancer stem cell marker, ABCG2+. The ABCG2+ staining assay was a novel technique developed during the course of this study. It remains to be fully validated, but it may provide a new and reliable way to identify and analyse cancer stem cell containing side population cells. The MCF7 cells were treated with the compounds and the proportion of putative cancer stem cells compared with the size of the population in untreated cells was assessed. Three compounds (RUMB-010, RUMB-015 and RUMB-017/018) capable of reducing the proportion of side population cells within the MCF7 cell line were identified. Taking these data together, we identified two potential „hit‟ compounds which should be prioritised for future research. These are compounds RUMB-010/sargaquinoic acid and RUMB-017/018. RUMB-010 is of interest as it was shown to target the putative cancer stem cell population, in addition to the bulk MCF7 tumour line, but was relatively less toxic to the „normal‟ MCF12A cell line. RUMB-017/018 is of interest due to the ability to selectively target the cancer stem cell enriched side population, while having little effect on the normal (MCF12A) or bulk tumour (MCF7) cell lines tested. These compounds will be important as „hit‟ compounds for drug development and as tool compounds to study cancer and cancer stem cell biology.
- Full Text:
- Date Issued: 2010
Analysis processes as antecedents for decision-making related to growth strategies of South African Game Ranchers
- Authors: Van Eyk, Marlé
- Date: 2010
- Subjects: Tourism -- Marketing , Game farms -- South Africa
- Language: English
- Type: Thesis , Doctoral , DTech
- Identifier: vital:9356 , http://hdl.handle.net/10948/1546 , Tourism -- Marketing , Game farms -- South Africa
- Description: Game ranching offers an economic alternative to conventional stock farming and is a means of supplementing income derived from agricultural activities. Competition is intensifying as ranchers continuously look for ways to improve and expand their businesses and gain a competitive advantage. Ranchers consequently have to find strategies that can ensure growth. Since a reciprocal relationship and dependency exists between a game ranch and the environment in which it operates, it is essential that ranchers take cognizance of aspects in the marketing environment that can either limit, and hence encumber the choice of growth strategy, or stimulate the growth potential of game ranches. As the objective of marketing is to offer customers superior value, it is pertinent for ranchers to know and understand the needs, requirements and motivations of visitors. Failure to do so will cause visitors to patronise other game ranches, or alternative tourism offerings that meet their expectations. A literature review was conducted to define strategy and assist in identifying growth strategies available to a game ranch. The literature review assisted in categorising elements in the external, internal and customer analysis phases of strategic marketing management. Surveys were conducted by means of self-completion questionnaires which were distributed throughout South Africa. Two sets of questionnaires were distributed - one to respondents with prior experience of a game ranch, and one to respondents with no-prior experience. A qualifying question directed the fieldworker to decide which questionnaire should be completed by the respondent. The surveys were constructed in such a way as to determine to what extent various factors would persuade respondents to visit a ranch or extend their stay. Based on a factor analysis, an eight factor structure emerged which represented the personal values of respondents and their levels of expectation for each of the factors. The eight factors were stimulation, universalism, tradition, security, hedonism, power, socialisation, and self-direction. The study revealed the following. - The majority of respondents with no-prior experience of a game ranch is either unaware of the offerings of game ranches, or perceives them as too expensive. - The sustainable use of natural resources is not only essential for the existence of a game ranch, but is also an important motivator for respondents to either visit a game ranch or extend their stay at a ranch. - Staff play a critical role in the overall experience of visitors and act as an important motivator to either visit/revisit a game ranch or extend their stay at the ranch. - Clean and comfortable overnight facilities are deemed important by all respondents. - Respondents have a strong desire to relax and spend time with family and friends. A decision-making framework from which game ranches can select applicable growth strategies resulted from the study. The decision-making framework comprises a three-phase process; phase 1 is the identification of a game ranch's target market; phase 2 is the use of a simplistic framework to determine a possible growth strategy for a game ranch; phase 3 is the identification of ways to implement the selected strategy. As the game ranch industry makes significant contributions to the economic, social and ecological welfare of South Africa, this study added to the body of knowledge of game ranching in South Africa, particularly with regard to the growth options available to game ranches. Recommendations for consideration of future research included the following. - As the current study investigated hunting and tourism, future research on growth strategies for game ranches could also include other aspects of game ranching such as the sale of live game and game products. - More focused empirical research into external and internal strategic analysis should be considered to supplement the empirical research into customer analysis resulting from the current study. - Finally, additional information obtained on the external and internal strategic analysis process could lead to expanding the decision-making framework developed in this study into a more holistic tool to be used in selecting a growth strategy, or combination of strategies for a game ranch3.
- Full Text:
- Date Issued: 2010
- Authors: Van Eyk, Marlé
- Date: 2010
- Subjects: Tourism -- Marketing , Game farms -- South Africa
- Language: English
- Type: Thesis , Doctoral , DTech
- Identifier: vital:9356 , http://hdl.handle.net/10948/1546 , Tourism -- Marketing , Game farms -- South Africa
- Description: Game ranching offers an economic alternative to conventional stock farming and is a means of supplementing income derived from agricultural activities. Competition is intensifying as ranchers continuously look for ways to improve and expand their businesses and gain a competitive advantage. Ranchers consequently have to find strategies that can ensure growth. Since a reciprocal relationship and dependency exists between a game ranch and the environment in which it operates, it is essential that ranchers take cognizance of aspects in the marketing environment that can either limit, and hence encumber the choice of growth strategy, or stimulate the growth potential of game ranches. As the objective of marketing is to offer customers superior value, it is pertinent for ranchers to know and understand the needs, requirements and motivations of visitors. Failure to do so will cause visitors to patronise other game ranches, or alternative tourism offerings that meet their expectations. A literature review was conducted to define strategy and assist in identifying growth strategies available to a game ranch. The literature review assisted in categorising elements in the external, internal and customer analysis phases of strategic marketing management. Surveys were conducted by means of self-completion questionnaires which were distributed throughout South Africa. Two sets of questionnaires were distributed - one to respondents with prior experience of a game ranch, and one to respondents with no-prior experience. A qualifying question directed the fieldworker to decide which questionnaire should be completed by the respondent. The surveys were constructed in such a way as to determine to what extent various factors would persuade respondents to visit a ranch or extend their stay. Based on a factor analysis, an eight factor structure emerged which represented the personal values of respondents and their levels of expectation for each of the factors. The eight factors were stimulation, universalism, tradition, security, hedonism, power, socialisation, and self-direction. The study revealed the following. - The majority of respondents with no-prior experience of a game ranch is either unaware of the offerings of game ranches, or perceives them as too expensive. - The sustainable use of natural resources is not only essential for the existence of a game ranch, but is also an important motivator for respondents to either visit a game ranch or extend their stay at a ranch. - Staff play a critical role in the overall experience of visitors and act as an important motivator to either visit/revisit a game ranch or extend their stay at the ranch. - Clean and comfortable overnight facilities are deemed important by all respondents. - Respondents have a strong desire to relax and spend time with family and friends. A decision-making framework from which game ranches can select applicable growth strategies resulted from the study. The decision-making framework comprises a three-phase process; phase 1 is the identification of a game ranch's target market; phase 2 is the use of a simplistic framework to determine a possible growth strategy for a game ranch; phase 3 is the identification of ways to implement the selected strategy. As the game ranch industry makes significant contributions to the economic, social and ecological welfare of South Africa, this study added to the body of knowledge of game ranching in South Africa, particularly with regard to the growth options available to game ranches. Recommendations for consideration of future research included the following. - As the current study investigated hunting and tourism, future research on growth strategies for game ranches could also include other aspects of game ranching such as the sale of live game and game products. - More focused empirical research into external and internal strategic analysis should be considered to supplement the empirical research into customer analysis resulting from the current study. - Finally, additional information obtained on the external and internal strategic analysis process could lead to expanding the decision-making framework developed in this study into a more holistic tool to be used in selecting a growth strategy, or combination of strategies for a game ranch3.
- Full Text:
- Date Issued: 2010
Analytical methods for the quantitative determination of oxytocin
- Chaibva, Faith A, Walker, Roderick B
- Authors: Chaibva, Faith A , Walker, Roderick B
- Date: 2010
- Language: English
- Type: Article
- Identifier: vital:6353 , http://hdl.handle.net/10962/d1006037
- Description: Oxytocin is a clinically important nonapeptide that is used for the induction and/or augmentation of labor and is normally administered as a slow intravenous infusion diluted with normal saline or Ringer’s lactate solution. Oxytocin is also indicated for use in the prevention and treatment of post partum hemorrhage and may be administered via either the intramuscular or intravenous routes in order to increase uterine tone and/or reduce bleeding. The analysis of oxytocin in different media has evolved over the past 30 years with the result that more sophisticated, selective and sensitive techniques are used for the determination of the compound. A variety of techniques have been applied to the determination of oxytocin in different matrices ranging from simple paper chromatography to hyphenated liquid chromatographic such as liquid chromatography coupled with mass-spectrometry. Additionally enzyme linked immuno-sorbent assays (ELISA) and radio immuno-assays (RIA) are used for the determination of low concentrations of oxytocin in biological matrices. This manuscript provides a systematic survey of the analytical methods that have been reported for isolation and quantitation of oxytocin in different matrices.
- Full Text:
- Date Issued: 2010
- Authors: Chaibva, Faith A , Walker, Roderick B
- Date: 2010
- Language: English
- Type: Article
- Identifier: vital:6353 , http://hdl.handle.net/10962/d1006037
- Description: Oxytocin is a clinically important nonapeptide that is used for the induction and/or augmentation of labor and is normally administered as a slow intravenous infusion diluted with normal saline or Ringer’s lactate solution. Oxytocin is also indicated for use in the prevention and treatment of post partum hemorrhage and may be administered via either the intramuscular or intravenous routes in order to increase uterine tone and/or reduce bleeding. The analysis of oxytocin in different media has evolved over the past 30 years with the result that more sophisticated, selective and sensitive techniques are used for the determination of the compound. A variety of techniques have been applied to the determination of oxytocin in different matrices ranging from simple paper chromatography to hyphenated liquid chromatographic such as liquid chromatography coupled with mass-spectrometry. Additionally enzyme linked immuno-sorbent assays (ELISA) and radio immuno-assays (RIA) are used for the determination of low concentrations of oxytocin in biological matrices. This manuscript provides a systematic survey of the analytical methods that have been reported for isolation and quantitation of oxytocin in different matrices.
- Full Text:
- Date Issued: 2010
Antibiotic use in two hospitals in West Wollega, Ethiopia
- Authors: Banja, Wakweya Dugassa
- Date: 2010
- Subjects: Antibiotics , Bacterial diseases -- Chemotherapy
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10141 , http://hdl.handle.net/10948/1263 , Antibiotics , Bacterial diseases -- Chemotherapy
- Description: In the last decades, there has been an escalating consumption of antibiotics with the number of antibiotic prescriptions increasing worldwide. Overuse or inappropriate use of antibiotics has resulted in a major increase in the development of multi-drug resistant pathogens. Antimicrobial resistance is one of the world’s most serious public health problems with great implication in terms of morbidity, mortality, and costs. To date, there has been no formal antibiotic use study conducted in the West Wollega zone of Ethiopia to assess antibiotic utilization. The objective of this study was to determine the pattern of antibiotic use in two hospitals in the West Wollega zone of Ethiopia, namely Gimbie Adventist Hospital and Nedjo Hospitals, using drug utilization metrics and the costs associated. In addition it was to assess the correlation between diagnosed infectious diseases and antibiotic prescriptions. This study was a cross-sectional, retrospective, descriptive review of antibiotic usage in the two hospitals in the year 2007. Prescriptions dispensed in the first month of each quarter of 2007 were reviewed. The number of prescriptions screened, antibiotic courses started, antibiotic days by specific agent and overall, the cost of individual and all antibiotics, the number and type of infectious diseases diagnosed were collected from which core drug use indicators were calculated. The correlation between infectious disease diagnosed and the antibiotic days prescribed were analyzed. A total of 18568 antibiotic and non-antibiotic prescriptions were reviewed retrospectively in the four months of the study period, 47 percent of which contained at least one antibiotic. The average number of antibiotics per prescription was 1.33 and 1.09 whilst the percentage of injectable antibiotics prescribed was 83.2 percent and 3.76 percent to outpatients and inpatients respectively. Antibiotics prescribed from the Essential Drug List (EDL) and List of Drugs for District Hospital (LDDH) were 63.0 percent, 74.8 percent, and 90.8 percent and 76.1 percent for outpatients and inpatients respectively. 98.6 percent of outpatient and 97.0 percent inpatient prescribed antibiotics were actually dispensed. Penicillins and quinolones were the most prescribed antibiotics in both inpatient and outpatient departments constituting 43.46 percent and 24.08 percent respectively. The antibiotic utilization ratio, incidence of outpatient antibiotic use, incidence of inpatient antibiotic use, the number of Defined Daily Doses (DDD)/1000inhabitants/year and DDD/100 Occupied Bed Days (OBD) for the zone was 0.16, 17.25, 23.56, 158.61, and 70 respectively. Antibiotic cost constituted 33.7 percent of all expenditure on drug, cost of antibiotic per patient care day and cost per antibiotic day was 3.84 Ethiopian Birr (ETB) ($0.40) and 6.29 ETB ($0.66) respectively. The correlation between infectious diseases diagnosed and antibiotic prescription shows significant variation. At outpatient departments alone an average number of antibiotic courses started was 2.7 at Gimbie Adventist Hospital and 7.6 for Nedjo Hospital. When overall antibiotic days prescribed and required was compared in both hospitals, there were 2.4 and 5 times more antibiotic days prescribed than were required for Gimbie and Nedjo Hospitals respectively. This suggests that the overuse of antibiotic is worse in the government hospital (Nedjo Hospital) than in the mission hospital (Gimbie Adventist Hospital). This study suggested that there was overuse of antibiotics in the West Wollega hospitals although further investigation is needed to identify its underlying causes and nature. It is recommended that the health personnel, the hospital management, the zonal and regional Health Bureau, the regulatory bodies and Non-Governmental Organizations (NGOs) work hand-in-hand to promote the rational use of antibiotics in this region so that the consequences and financial cost of antimicrobial resistance can be prevented.
- Full Text:
- Date Issued: 2010
- Authors: Banja, Wakweya Dugassa
- Date: 2010
- Subjects: Antibiotics , Bacterial diseases -- Chemotherapy
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10141 , http://hdl.handle.net/10948/1263 , Antibiotics , Bacterial diseases -- Chemotherapy
- Description: In the last decades, there has been an escalating consumption of antibiotics with the number of antibiotic prescriptions increasing worldwide. Overuse or inappropriate use of antibiotics has resulted in a major increase in the development of multi-drug resistant pathogens. Antimicrobial resistance is one of the world’s most serious public health problems with great implication in terms of morbidity, mortality, and costs. To date, there has been no formal antibiotic use study conducted in the West Wollega zone of Ethiopia to assess antibiotic utilization. The objective of this study was to determine the pattern of antibiotic use in two hospitals in the West Wollega zone of Ethiopia, namely Gimbie Adventist Hospital and Nedjo Hospitals, using drug utilization metrics and the costs associated. In addition it was to assess the correlation between diagnosed infectious diseases and antibiotic prescriptions. This study was a cross-sectional, retrospective, descriptive review of antibiotic usage in the two hospitals in the year 2007. Prescriptions dispensed in the first month of each quarter of 2007 were reviewed. The number of prescriptions screened, antibiotic courses started, antibiotic days by specific agent and overall, the cost of individual and all antibiotics, the number and type of infectious diseases diagnosed were collected from which core drug use indicators were calculated. The correlation between infectious disease diagnosed and the antibiotic days prescribed were analyzed. A total of 18568 antibiotic and non-antibiotic prescriptions were reviewed retrospectively in the four months of the study period, 47 percent of which contained at least one antibiotic. The average number of antibiotics per prescription was 1.33 and 1.09 whilst the percentage of injectable antibiotics prescribed was 83.2 percent and 3.76 percent to outpatients and inpatients respectively. Antibiotics prescribed from the Essential Drug List (EDL) and List of Drugs for District Hospital (LDDH) were 63.0 percent, 74.8 percent, and 90.8 percent and 76.1 percent for outpatients and inpatients respectively. 98.6 percent of outpatient and 97.0 percent inpatient prescribed antibiotics were actually dispensed. Penicillins and quinolones were the most prescribed antibiotics in both inpatient and outpatient departments constituting 43.46 percent and 24.08 percent respectively. The antibiotic utilization ratio, incidence of outpatient antibiotic use, incidence of inpatient antibiotic use, the number of Defined Daily Doses (DDD)/1000inhabitants/year and DDD/100 Occupied Bed Days (OBD) for the zone was 0.16, 17.25, 23.56, 158.61, and 70 respectively. Antibiotic cost constituted 33.7 percent of all expenditure on drug, cost of antibiotic per patient care day and cost per antibiotic day was 3.84 Ethiopian Birr (ETB) ($0.40) and 6.29 ETB ($0.66) respectively. The correlation between infectious diseases diagnosed and antibiotic prescription shows significant variation. At outpatient departments alone an average number of antibiotic courses started was 2.7 at Gimbie Adventist Hospital and 7.6 for Nedjo Hospital. When overall antibiotic days prescribed and required was compared in both hospitals, there were 2.4 and 5 times more antibiotic days prescribed than were required for Gimbie and Nedjo Hospitals respectively. This suggests that the overuse of antibiotic is worse in the government hospital (Nedjo Hospital) than in the mission hospital (Gimbie Adventist Hospital). This study suggested that there was overuse of antibiotics in the West Wollega hospitals although further investigation is needed to identify its underlying causes and nature. It is recommended that the health personnel, the hospital management, the zonal and regional Health Bureau, the regulatory bodies and Non-Governmental Organizations (NGOs) work hand-in-hand to promote the rational use of antibiotics in this region so that the consequences and financial cost of antimicrobial resistance can be prevented.
- Full Text:
- Date Issued: 2010
Antimicrobial activity of selected Eastern Cape medical plants
- Authors: Mohlakoana, Keneuoe
- Date: 2010
- Subjects: Materia medica, Vegetable -- South Africa , Drug resistance in microorganisms -- South Africa , Anti-infective agents -- South Africa , Antibiotics
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10120 , http://hdl.handle.net/10948/1199 , Materia medica, Vegetable -- South Africa , Drug resistance in microorganisms -- South Africa , Anti-infective agents -- South Africa , Antibiotics
- Description: Bacterial resistance to antibiotics has been a great problem for many years. The degree of resistance and the speed with which resistance develops varies with different organisms and different drugs. Enzymes called β-lactamases are produced by bacteria and are one mechanism in which bacteria develop antimicrobial resistance. Gram-negative bacteria producing enzymes called ESBLs because of their wide substrate range are of a particular concern in nosocomial infections. In many countries people still use traditional medicine derived from plants as an alternative to the Western medicine due to increased cost of Western medicine and microbial resistance of antibiotic treatments. Biologically active compounds isolated from plants species are used in herbal medicine. Because of the high prevalence of the ESBLs and their increasing resistance to the antibiotics, this research study was done to test the antimicrobial activities of selected medicinal plants of the Eastern Cape; G. incanum, D. angustifolia and E. autumnalis which were traditionally used to treat various infections. The in vitro antimicrobial activity of three different extracts (acetone, methanol & distilled water) and the traditional preparations of the three plants were tested against the selected strains of ESBL-producing bacteria, non β-lactamase producers and the different fungal species. The extracts were screened against 26 Gram-positive bacterial strains, 53 Gram-negative bacterial strains and 15 fungal strains. The Gram-positive bacteria included strains from S. aureus, B. cereus and E. faecalis. The Gram-negative bacteria included strains from E. ii coli, E. cloacae, K. pneumoniae, P. aeruginosa and Acinetobacter spp. The fungal strains included 9 strains of Candida albicans and a single strain of each of the following opportunistic fungi, Mucor sp, Geotrichium sp, Penicillium sp, Fusarium sp and Rhizopus sp. The agar dilution assay was used for the antimicrobial screening of the plants extracts and for the determination of the MICs. The Ames test was performed for the determination of probable carcinogenicity of the extracts of G. incanum and D. angustifolia. The distilled water extracts followed by acetone extracts of the plants revealed the highest antimicrobial activity against the different microbial strains. The extracts of G. incanum followed by the extracts of D. angustifolia inhibited the highest number of microbial strains. The extracts of E. autumnalis did not show any antimicrobial activity against all the pathogens in this study. More of the Gram-positive bacteria were inhibited by the plant extracts. The lowest MIC was obtained with Gram-positive bacteria. The bacterial strains of E. faecalis and P. aeruginosa were not inhibited by any of the plants extracts in the agar dilution assay yet Acinetobacter species which are MDR were inhibited by the distilled water and methanol extracts of G. incanum. A single strain of Mucor sp was the only spore forming fungi that was inhibited by the distilled water extracts of G. incanum. None of the plants extracts showed any mutagenic effects on the TA100 S. typhimurium strains incorporated on the Ames test. Apart from revealing of new antimicrobial agents that may be used against resistant organisms, the proper use of antimicrobial agents should be recommended. The study has highlighted a need for further investigations on the properties of the medicinal plants used in this study.
- Full Text:
- Date Issued: 2010
- Authors: Mohlakoana, Keneuoe
- Date: 2010
- Subjects: Materia medica, Vegetable -- South Africa , Drug resistance in microorganisms -- South Africa , Anti-infective agents -- South Africa , Antibiotics
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10120 , http://hdl.handle.net/10948/1199 , Materia medica, Vegetable -- South Africa , Drug resistance in microorganisms -- South Africa , Anti-infective agents -- South Africa , Antibiotics
- Description: Bacterial resistance to antibiotics has been a great problem for many years. The degree of resistance and the speed with which resistance develops varies with different organisms and different drugs. Enzymes called β-lactamases are produced by bacteria and are one mechanism in which bacteria develop antimicrobial resistance. Gram-negative bacteria producing enzymes called ESBLs because of their wide substrate range are of a particular concern in nosocomial infections. In many countries people still use traditional medicine derived from plants as an alternative to the Western medicine due to increased cost of Western medicine and microbial resistance of antibiotic treatments. Biologically active compounds isolated from plants species are used in herbal medicine. Because of the high prevalence of the ESBLs and their increasing resistance to the antibiotics, this research study was done to test the antimicrobial activities of selected medicinal plants of the Eastern Cape; G. incanum, D. angustifolia and E. autumnalis which were traditionally used to treat various infections. The in vitro antimicrobial activity of three different extracts (acetone, methanol & distilled water) and the traditional preparations of the three plants were tested against the selected strains of ESBL-producing bacteria, non β-lactamase producers and the different fungal species. The extracts were screened against 26 Gram-positive bacterial strains, 53 Gram-negative bacterial strains and 15 fungal strains. The Gram-positive bacteria included strains from S. aureus, B. cereus and E. faecalis. The Gram-negative bacteria included strains from E. ii coli, E. cloacae, K. pneumoniae, P. aeruginosa and Acinetobacter spp. The fungal strains included 9 strains of Candida albicans and a single strain of each of the following opportunistic fungi, Mucor sp, Geotrichium sp, Penicillium sp, Fusarium sp and Rhizopus sp. The agar dilution assay was used for the antimicrobial screening of the plants extracts and for the determination of the MICs. The Ames test was performed for the determination of probable carcinogenicity of the extracts of G. incanum and D. angustifolia. The distilled water extracts followed by acetone extracts of the plants revealed the highest antimicrobial activity against the different microbial strains. The extracts of G. incanum followed by the extracts of D. angustifolia inhibited the highest number of microbial strains. The extracts of E. autumnalis did not show any antimicrobial activity against all the pathogens in this study. More of the Gram-positive bacteria were inhibited by the plant extracts. The lowest MIC was obtained with Gram-positive bacteria. The bacterial strains of E. faecalis and P. aeruginosa were not inhibited by any of the plants extracts in the agar dilution assay yet Acinetobacter species which are MDR were inhibited by the distilled water and methanol extracts of G. incanum. A single strain of Mucor sp was the only spore forming fungi that was inhibited by the distilled water extracts of G. incanum. None of the plants extracts showed any mutagenic effects on the TA100 S. typhimurium strains incorporated on the Ames test. Apart from revealing of new antimicrobial agents that may be used against resistant organisms, the proper use of antimicrobial agents should be recommended. The study has highlighted a need for further investigations on the properties of the medicinal plants used in this study.
- Full Text:
- Date Issued: 2010
Applicability of the REALM health literacy test to an English second-language South African population:
- Dowse, Roslind, Lecoko, Motlalepule L E, Ehlers, Martina S
- Authors: Dowse, Roslind , Lecoko, Motlalepule L E , Ehlers, Martina S
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/156798 , vital:40051 , https://doi.org/10.1007/s11096-010-9392-y
- Description: Objective and setting. To investigate health literacy in an English second language population using the REALM test, to evaluate its appropriateness and to compare health literacy between four different education categories. Setting Primary healthcare clinics and participant homes in Grahamstown, South Africa.
- Full Text:
- Date Issued: 2010
- Authors: Dowse, Roslind , Lecoko, Motlalepule L E , Ehlers, Martina S
- Date: 2010
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/156798 , vital:40051 , https://doi.org/10.1007/s11096-010-9392-y
- Description: Objective and setting. To investigate health literacy in an English second language population using the REALM test, to evaluate its appropriateness and to compare health literacy between four different education categories. Setting Primary healthcare clinics and participant homes in Grahamstown, South Africa.
- Full Text:
- Date Issued: 2010
Application of multiserver queueing to call centres
- Authors: Majakwara, Jacob
- Date: 2010
- Subjects: Call centers , ERLANG (Computer program language) , Queuing theory
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5578 , http://hdl.handle.net/10962/d1015461
- Description: The simplest and most widely used queueing model in call centres is the M/M/k system, sometimes referred to as Erlang-C. For many applications the model is an over-simplification. Erlang-C model ignores among other things busy signals, customer impatience and services that span multiple visits. Although the Erlang-C formula is easily implemented, it is not easy to obtain insight from its answers (for example, to find an approximate answer to questions such as "how many additional agents do I need if the arrival rate doubles?"). An approximation of the Erlang-C formula that gives structural insight into this type of question would be of use to better understand economies of scale in call centre operations. Erlang-C based predictions can also turn out highly inaccurate because of violations of underlying assumptions and these violations are not straightforward to model. For example, non-exponential service times lead one to the M/G/k queue which, in stark contrast to the M/M/k system, is difficult to analyse. This thesis deals mainly with the general M/GI/k model with abandonment. The arrival process conforms to a Poisson process, service durations are independent and identically distributed with a general distribution, there are k servers, and independent and identically distributed customer abandoning times with a general distribution. This thesis will endeavour to analyse call centres using M/GI/k model with abandonment and the data to be used will be simulated using EZSIM-software. The paper by Brown et al. [3] entitled "Statistical Analysis of a Telephone Call Centre: A Queueing-Science Perspective," will be the basis upon which this thesis is built.
- Full Text:
- Date Issued: 2010
- Authors: Majakwara, Jacob
- Date: 2010
- Subjects: Call centers , ERLANG (Computer program language) , Queuing theory
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5578 , http://hdl.handle.net/10962/d1015461
- Description: The simplest and most widely used queueing model in call centres is the M/M/k system, sometimes referred to as Erlang-C. For many applications the model is an over-simplification. Erlang-C model ignores among other things busy signals, customer impatience and services that span multiple visits. Although the Erlang-C formula is easily implemented, it is not easy to obtain insight from its answers (for example, to find an approximate answer to questions such as "how many additional agents do I need if the arrival rate doubles?"). An approximation of the Erlang-C formula that gives structural insight into this type of question would be of use to better understand economies of scale in call centre operations. Erlang-C based predictions can also turn out highly inaccurate because of violations of underlying assumptions and these violations are not straightforward to model. For example, non-exponential service times lead one to the M/G/k queue which, in stark contrast to the M/M/k system, is difficult to analyse. This thesis deals mainly with the general M/GI/k model with abandonment. The arrival process conforms to a Poisson process, service durations are independent and identically distributed with a general distribution, there are k servers, and independent and identically distributed customer abandoning times with a general distribution. This thesis will endeavour to analyse call centres using M/GI/k model with abandonment and the data to be used will be simulated using EZSIM-software. The paper by Brown et al. [3] entitled "Statistical Analysis of a Telephone Call Centre: A Queueing-Science Perspective," will be the basis upon which this thesis is built.
- Full Text:
- Date Issued: 2010
Application of Section 189 and Section 189A of the Labour Relations Act 66 of 1995 as amended
- Authors: Rune, Mawethu Siyabulela
- Date: 2010
- Subjects: Downsizing of organizations -- Law and legislation -- South Africa , Employees -- Dismissal of -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10220 , http://hdl.handle.net/10948/1281 , Downsizing of organizations -- Law and legislation -- South Africa , Employees -- Dismissal of -- South Africa
- Description: Economies worldwide have become more integrated and competitive due to the phenomenon of globalisation and its antecedents, which are improved technological communication, the use of technology in production, ever improving management of skills as well as standards of education. Amongst the consequences have been changing demands and rising expectations in terms of employee remuneration, job security and conditions of work. This has at the same time been accompanied by employers expecting greater profit. Against this backdrop, this treatise seeks to interrogate and to explain the processes that should constitute fair, rational and justifiable employee dismissal for operational purposes. This is done bearing in mind the global economic crisis and its impact on employees. The treatise constitutes an attempt to carve a cushioning mechanism for employees in the midst of the global economic storm. We consider the inadequacies of common law principles. We also submit that section 189 in its present form and its application by courts do not provide for substantive fairness interrogation when dealing with dismissal for operational reasons. We explore the legislative framework, interpretation by leading academics as well as applications by courts of section 189A, which prescribes that if dismissal is based on operational reasons, consideration must not only be based on substantive and procedural fairness but also that proper consideration of alternatives must have been explored before dismissal is effected.
- Full Text:
- Date Issued: 2010
- Authors: Rune, Mawethu Siyabulela
- Date: 2010
- Subjects: Downsizing of organizations -- Law and legislation -- South Africa , Employees -- Dismissal of -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10220 , http://hdl.handle.net/10948/1281 , Downsizing of organizations -- Law and legislation -- South Africa , Employees -- Dismissal of -- South Africa
- Description: Economies worldwide have become more integrated and competitive due to the phenomenon of globalisation and its antecedents, which are improved technological communication, the use of technology in production, ever improving management of skills as well as standards of education. Amongst the consequences have been changing demands and rising expectations in terms of employee remuneration, job security and conditions of work. This has at the same time been accompanied by employers expecting greater profit. Against this backdrop, this treatise seeks to interrogate and to explain the processes that should constitute fair, rational and justifiable employee dismissal for operational purposes. This is done bearing in mind the global economic crisis and its impact on employees. The treatise constitutes an attempt to carve a cushioning mechanism for employees in the midst of the global economic storm. We consider the inadequacies of common law principles. We also submit that section 189 in its present form and its application by courts do not provide for substantive fairness interrogation when dealing with dismissal for operational reasons. We explore the legislative framework, interpretation by leading academics as well as applications by courts of section 189A, which prescribes that if dismissal is based on operational reasons, consideration must not only be based on substantive and procedural fairness but also that proper consideration of alternatives must have been explored before dismissal is effected.
- Full Text:
- Date Issued: 2010
Application of the sustainable livelihoods framework to the analysis of the Provincial Growth and Development Plan of the Eastern Cape: a case study of the Massive Food Production Programme in Nkonkobe Municipality and Buffalo City Municipality
- Authors: Dirwayi, Tafadzwa P
- Date: 2010
- Subjects: Sustainable agriculture -- South Africa -- Eastern Cape , Sustainable development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Food supply -- South Africa -- Eastern Cape , Food security -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Agricultural Economics)
- Identifier: vital:11159 , http://hdl.handle.net/10353/353 , Sustainable agriculture -- South Africa -- Eastern Cape , Sustainable development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Food supply -- South Africa -- Eastern Cape , Food security -- South Africa -- Eastern Cape
- Description: The Government of the Eastern Cape Province introduced the Massive Food Production programme, which is a cornerstone within the agrarian reform initiative of the Provincial Growth and Development Plan (PGDP). The programme has been going on for more than seven years, however little has been documented on its impact. The main objective of the study was to investigate the impact of the Massive Food Production Programme on the livelihoods in Nkonkobe Municipality. This study did not only investigate its impact on the participants but also assessed its impact on the recipient communities. Accordingly, the specific objectives of the study were to investigate the impact of the Massive Food Programme on the asset base of participants, the general livelihood activities, and the livelihood outcomes. Among other livelihood activities, the study made an in-depth investigation on the impact of the Massive Food Production Programme on maize crop production. This is because the Massive Food Production was aimed at maize crop production. Previous studies investigated on the indicators of success that can be used to measure the impact of this programme. After the wide-ranging evaluation of views, arguments and research findings, a model to measure impact of the programme was designed. The asset base improvement was used as the proxy of impact. Nine factors were selected from the principal component analysis of the many factors that were taken to affect participation. Three other dummy variables to proximate location, participation and group turnover were added to the regression model that was developed to measure impact. The DFID Sustainable Livelihood Framework was used to investigate the impact of the Massive Food Production Programme. This approach was used in both conceptualizing the study and the selection of variables. The DFID Sustainable Livelihood Approach was selected because unlike the CARE or UNDP Sustainable Livelihood models, it was designed for such purposes. Data collection was accomplished through observation, interviewing, and focus group discussions. The researcher also made use of project annual reports on change of livelihoods, baseline survey reports, project log frame, internal reports, work plans, budgets and mid-term evaluation reports as sources of secondary data. v The research findings were analysed using several analytical procedures, including the conventional descriptive statistics, principal components analysis, and linear regression analysis. The use of the different types of analysis was driven by the research questions under investigation and the theories on which they are based, and by the available data. The study revealed that to some extent the Massive Food Production Programme has managed to improve the asset base of the farmers. However, its impact on ensuring food security is still debatable. Findings of the study revealed that most of the participants and the non-participants communities experienced food shortages in the last season 2007/8 for at most three months. The study revealed that the highest agricultural income is from livestock sales. The varying locations showed the potential of livestock production. It is recommended that development agencies consider livestock production as an agricultural strategy with immense potential for enhancing sustaining rural livelihoods
- Full Text:
- Date Issued: 2010
- Authors: Dirwayi, Tafadzwa P
- Date: 2010
- Subjects: Sustainable agriculture -- South Africa -- Eastern Cape , Sustainable development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Food supply -- South Africa -- Eastern Cape , Food security -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Agricultural Economics)
- Identifier: vital:11159 , http://hdl.handle.net/10353/353 , Sustainable agriculture -- South Africa -- Eastern Cape , Sustainable development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Rural poor -- South Africa -- Eastern Cape , Food supply -- South Africa -- Eastern Cape , Food security -- South Africa -- Eastern Cape
- Description: The Government of the Eastern Cape Province introduced the Massive Food Production programme, which is a cornerstone within the agrarian reform initiative of the Provincial Growth and Development Plan (PGDP). The programme has been going on for more than seven years, however little has been documented on its impact. The main objective of the study was to investigate the impact of the Massive Food Production Programme on the livelihoods in Nkonkobe Municipality. This study did not only investigate its impact on the participants but also assessed its impact on the recipient communities. Accordingly, the specific objectives of the study were to investigate the impact of the Massive Food Programme on the asset base of participants, the general livelihood activities, and the livelihood outcomes. Among other livelihood activities, the study made an in-depth investigation on the impact of the Massive Food Production Programme on maize crop production. This is because the Massive Food Production was aimed at maize crop production. Previous studies investigated on the indicators of success that can be used to measure the impact of this programme. After the wide-ranging evaluation of views, arguments and research findings, a model to measure impact of the programme was designed. The asset base improvement was used as the proxy of impact. Nine factors were selected from the principal component analysis of the many factors that were taken to affect participation. Three other dummy variables to proximate location, participation and group turnover were added to the regression model that was developed to measure impact. The DFID Sustainable Livelihood Framework was used to investigate the impact of the Massive Food Production Programme. This approach was used in both conceptualizing the study and the selection of variables. The DFID Sustainable Livelihood Approach was selected because unlike the CARE or UNDP Sustainable Livelihood models, it was designed for such purposes. Data collection was accomplished through observation, interviewing, and focus group discussions. The researcher also made use of project annual reports on change of livelihoods, baseline survey reports, project log frame, internal reports, work plans, budgets and mid-term evaluation reports as sources of secondary data. v The research findings were analysed using several analytical procedures, including the conventional descriptive statistics, principal components analysis, and linear regression analysis. The use of the different types of analysis was driven by the research questions under investigation and the theories on which they are based, and by the available data. The study revealed that to some extent the Massive Food Production Programme has managed to improve the asset base of the farmers. However, its impact on ensuring food security is still debatable. Findings of the study revealed that most of the participants and the non-participants communities experienced food shortages in the last season 2007/8 for at most three months. The study revealed that the highest agricultural income is from livestock sales. The varying locations showed the potential of livestock production. It is recommended that development agencies consider livestock production as an agricultural strategy with immense potential for enhancing sustaining rural livelihoods
- Full Text:
- Date Issued: 2010
Applications of polymerized metal tetra-amino phthalocyanines towards hydrogen peroxide detection
- Mashazi, Philani N, Togo, Chumunorwa, Limson, Janice L, Nyokong, Tebello
- Authors: Mashazi, Philani N , Togo, Chumunorwa , Limson, Janice L , Nyokong, Tebello
- Date: 2010
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/261840 , vital:53451 , xlink:href="https://doi.org/10.1142/S1088424610001994"
- Description: This work reports the use of metallo tetra-amino phthalocyanines (MTAPc, M = Co and Mn) polymer thin films on gold and glassy carbon electrode surfaces for the detection and monitoring of hydrogen peroxide (H2O2). The polymer-modified electrodes were characterized using electrochemical and microscopic-based methods. Atomic force microscopy (AFM) was used to study the bare and polymer-modified ITO surfaces. The electrocatalytic reduction of H2O2 with glassy carbon polymer-modified electrodes gave higher current densities compared to their gold counterparts. The electroanalytical properties of H2O2 were obtained using a real-time calibration curve of the amperometric determination in pH 7.4 aqueous solution. The limits of detection (LoD) of the polymer-modified electrodes towards electroreduction of H2O2 were of the order of 10–7 M, with high sensitivity ranging from 6.0–15.4 mA.mM-1.cm-2.
- Full Text:
- Date Issued: 2010
- Authors: Mashazi, Philani N , Togo, Chumunorwa , Limson, Janice L , Nyokong, Tebello
- Date: 2010
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/261840 , vital:53451 , xlink:href="https://doi.org/10.1142/S1088424610001994"
- Description: This work reports the use of metallo tetra-amino phthalocyanines (MTAPc, M = Co and Mn) polymer thin films on gold and glassy carbon electrode surfaces for the detection and monitoring of hydrogen peroxide (H2O2). The polymer-modified electrodes were characterized using electrochemical and microscopic-based methods. Atomic force microscopy (AFM) was used to study the bare and polymer-modified ITO surfaces. The electrocatalytic reduction of H2O2 with glassy carbon polymer-modified electrodes gave higher current densities compared to their gold counterparts. The electroanalytical properties of H2O2 were obtained using a real-time calibration curve of the amperometric determination in pH 7.4 aqueous solution. The limits of detection (LoD) of the polymer-modified electrodes towards electroreduction of H2O2 were of the order of 10–7 M, with high sensitivity ranging from 6.0–15.4 mA.mM-1.cm-2.
- Full Text:
- Date Issued: 2010
Applying a lean engagement assessment tool to improve the probability of successful lean implementation at AB company
- Authors: Kleinhans, Carel Pretorious
- Date: 2010
- Subjects: Lean manufacturing , Engagement (Philosophy) , Preparedness
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8593 , http://hdl.handle.net/10948/1521 , Lean manufacturing , Engagement (Philosophy) , Preparedness
- Description: Competitiveness is crucial to achieving solid future national economics. A nation’s competitiveness reflects the extent to which it is able to provide increased prosperity to its citizens. Competitiveness can be defined to include the level of productivity of a country. This, in turn, sets the sustainability level of prosperity that can be achieved by an economy (Porter & Schwab, 2008). President Mbeki stated in the 2004 State of the Nation Address that “(South Africa) must continue to focus on the growth, development, and modernisation of the First Economy” (National Research Foundation, n.d.). The National Research Foundation (n.d.) claims that knowledge, innovation, and productivity, as well as optimal use of resources in the enterprise, are key to a competitive, sustainable growing economy. Firms involved in lean manufacturing do so to improve overall company performance in terms of productivity, efficiency, profitability and reducing costs. More than 90 per cent of these firms claim to be successful in achieving such goals. There is a clear association between the use of lean manufacturing and achieving higher productivity (Lucey, 2008a). Against this research and the claims made by the National Research Foundation it may be stated that lean manufacturing results will impact positively on an economy’s growth. AB Company will be evaluated in terms of the readiness and future sustainability of its lean transformation for the purposes of this study. It is anticipated that the results of this study will contribute toward reducing the risk of failure associated with a major lean transformation in the business.
- Full Text:
- Date Issued: 2010
- Authors: Kleinhans, Carel Pretorious
- Date: 2010
- Subjects: Lean manufacturing , Engagement (Philosophy) , Preparedness
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8593 , http://hdl.handle.net/10948/1521 , Lean manufacturing , Engagement (Philosophy) , Preparedness
- Description: Competitiveness is crucial to achieving solid future national economics. A nation’s competitiveness reflects the extent to which it is able to provide increased prosperity to its citizens. Competitiveness can be defined to include the level of productivity of a country. This, in turn, sets the sustainability level of prosperity that can be achieved by an economy (Porter & Schwab, 2008). President Mbeki stated in the 2004 State of the Nation Address that “(South Africa) must continue to focus on the growth, development, and modernisation of the First Economy” (National Research Foundation, n.d.). The National Research Foundation (n.d.) claims that knowledge, innovation, and productivity, as well as optimal use of resources in the enterprise, are key to a competitive, sustainable growing economy. Firms involved in lean manufacturing do so to improve overall company performance in terms of productivity, efficiency, profitability and reducing costs. More than 90 per cent of these firms claim to be successful in achieving such goals. There is a clear association between the use of lean manufacturing and achieving higher productivity (Lucey, 2008a). Against this research and the claims made by the National Research Foundation it may be stated that lean manufacturing results will impact positively on an economy’s growth. AB Company will be evaluated in terms of the readiness and future sustainability of its lean transformation for the purposes of this study. It is anticipated that the results of this study will contribute toward reducing the risk of failure associated with a major lean transformation in the business.
- Full Text:
- Date Issued: 2010
Art and Ethical Criticism, edited by Garry L. Hagberg
- Authors: Jones, Ward E
- Date: 2010
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/275612 , vital:55063 , xlink:href="https://doi.org/10.1093/mind/fzq098"
- Description: Book Review: If there is a norm that a book’s title should give a reliable indication of its contents, Art and Ethical Criticism does not quite meet it. By my judgement, only seven of its twelve essays concern either the ethical criticism of art or the criticism of ethical positions within artworks.
- Full Text:
- Date Issued: 2010
- Authors: Jones, Ward E
- Date: 2010
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/275612 , vital:55063 , xlink:href="https://doi.org/10.1093/mind/fzq098"
- Description: Book Review: If there is a norm that a book’s title should give a reliable indication of its contents, Art and Ethical Criticism does not quite meet it. By my judgement, only seven of its twelve essays concern either the ethical criticism of art or the criticism of ethical positions within artworks.
- Full Text:
- Date Issued: 2010
Arthropod Fauna of the UAE Vol. 3, A. van Harten (Ed.): book review
- Authors: Villet, Martin H
- Date: 2010
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/451598 , vital:75062 , https://hdl.handle.net/10520/EJC32858
- Description: It has been a year since the second volume of the UAE Insect Project's Arthropod Fauna of the United Arab Emirates was published, and several more members of the team of over 160 scientists from 27 countries have visited the UAE. This has provided several of the chapters in the third volume of this series, which contains contributions from 51 taxonomists from 20 countries, including South Africa. Under the patronage of His Highness Sheikh Tahoon Bin Zayed Al Nahyan and the leadership of the editor, the series is settling down to a very high standard, especially in terms of its lavish illustrations, exquisite production and, of course, taxonomic rigour.
- Full Text:
- Date Issued: 2010
- Authors: Villet, Martin H
- Date: 2010
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/451598 , vital:75062 , https://hdl.handle.net/10520/EJC32858
- Description: It has been a year since the second volume of the UAE Insect Project's Arthropod Fauna of the United Arab Emirates was published, and several more members of the team of over 160 scientists from 27 countries have visited the UAE. This has provided several of the chapters in the third volume of this series, which contains contributions from 51 taxonomists from 20 countries, including South Africa. Under the patronage of His Highness Sheikh Tahoon Bin Zayed Al Nahyan and the leadership of the editor, the series is settling down to a very high standard, especially in terms of its lavish illustrations, exquisite production and, of course, taxonomic rigour.
- Full Text:
- Date Issued: 2010