Possible futures for the Republic of South Africa towards 2055
- Adendorff, Christian Michael
- Authors: Adendorff, Christian Michael
- Date: 2013
- Subjects: Economic development -- South Africa , Sustainable development -- South Africa
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/7816 , vital:24294
- Description: The purpose of this thesis was to develop four scenarios for South Africa over the next forty years: Mandela's Dream in which positive elements come into function for South Africa's economy and governance; the Historical African Syndrome, in which the key driving forces unfold in an uneven pattern, or have a differentiated impact on South Africa's economy; the Good, the Bad and the Ugly in which less good governance prevails, but where a fortunate economy and firm national management allow South Africa to become competitive and benefit from satisfactory economic growth; and the Pyramid Syndrome Scenario in which negative regional drivers of change corrode positive policies and initiatives in a manner which compounds the pre-existing threats to South Africa's growth.
- Full Text:
- Date Issued: 2013
- Authors: Adendorff, Christian Michael
- Date: 2013
- Subjects: Economic development -- South Africa , Sustainable development -- South Africa
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/7816 , vital:24294
- Description: The purpose of this thesis was to develop four scenarios for South Africa over the next forty years: Mandela's Dream in which positive elements come into function for South Africa's economy and governance; the Historical African Syndrome, in which the key driving forces unfold in an uneven pattern, or have a differentiated impact on South Africa's economy; the Good, the Bad and the Ugly in which less good governance prevails, but where a fortunate economy and firm national management allow South Africa to become competitive and benefit from satisfactory economic growth; and the Pyramid Syndrome Scenario in which negative regional drivers of change corrode positive policies and initiatives in a manner which compounds the pre-existing threats to South Africa's growth.
- Full Text:
- Date Issued: 2013
Ethnic conflict in Nigeria: a challenge to inclusive social and political development
- Authors: Adetiba, Toyin Cotties
- Date: 2013
- Subjects: Genocide -- Nigeria , Ethnic conflict -- Nigeria , National characteristics, Nigerian , Citizenship -- Nigeria , Ethnicity -- Nigeria , Multiculturalism -- Nigeria , Economic development -- Nigeria , Nigeria -- Politics and government , Nationalism -- Nigeria , Nigeria -- Social conditions
- Language: English
- Type: Thesis , Doctoral , PhD (Social Science Dev)
- Identifier: vital:11432 , http://hdl.handle.net/10353/d1006955 , Genocide -- Nigeria , Ethnic conflict -- Nigeria , National characteristics, Nigerian , Citizenship -- Nigeria , Ethnicity -- Nigeria , Multiculturalism -- Nigeria , Economic development -- Nigeria , Nigeria -- Politics and government , Nationalism -- Nigeria , Nigeria -- Social conditions
- Description: The question of ethnicity has been one of the most topical subjects of study by social scientists. The controversies around this phenomenon seem to have been heated up by the high visibility of mobilized and politicized ethnic groups in most multi-ethnic states. Therefore, the extent to which ethnic nationalities are able to effectively manage the interplay of ethnic differences determines to what extent a multi-ethnic nation develops without crisis. Historically Nigeria has come a long way from multi-ethnic entity with political differences and background to the amalgamation of 1914 till the present structure of thirty-six states. Ethnicity, no doubt has contributed immensely to ethnic conflicts in Nigeria because of long standing revulsion or resentments towards ethnic groups different from one’s own or fear of domination which can as well lead ethnic groups to resort to violence as a means to protect and preserve the existing ethnic groups. Significantly ethnicity in Nigeria, is a product inequality among the various ethnic groups orchestrated by a long period of colonialism; a period which witnessed the ascendancy of three major ethnic groups to the socio-political domination of other ethnic groups and a period when the three major ethnic groups were used as a pedestal for the distribution of socio-political goods, resulting in the inability of other ethnic groups to access these socio-political goods. This situation has continued to impact negatively on the forces of national integration and cohesion in ethnically divided Nigeria. Considering the relationship between ethnicity and development; socio-political exclusion is not only ethically dangerous to development but also economically unproductive. It deprives groups and individuals of the opportunity for the necessary development that can be beneficial to the society. Thus, it is important to develop an integrative socio-political frame-work that explicitly recognizes the participatory role of every ethnic group in governance. Hence, there is a need for the adoption of inclusive governance to manage ethnicity in Nigeria. Notwithstanding, ethnic conflict still persists and an attempt will be made in this study to identify the reasons. Central to socio-political sustainability in Nigeria is a system that should recognize that differences are important to development and encompass notions of equality. Such a system should acknowledge the socio-political and economic power of every ethnic group and promote a system devoid of ethnocentric and exclusionary socio-political and economic policies.
- Full Text:
- Date Issued: 2013
- Authors: Adetiba, Toyin Cotties
- Date: 2013
- Subjects: Genocide -- Nigeria , Ethnic conflict -- Nigeria , National characteristics, Nigerian , Citizenship -- Nigeria , Ethnicity -- Nigeria , Multiculturalism -- Nigeria , Economic development -- Nigeria , Nigeria -- Politics and government , Nationalism -- Nigeria , Nigeria -- Social conditions
- Language: English
- Type: Thesis , Doctoral , PhD (Social Science Dev)
- Identifier: vital:11432 , http://hdl.handle.net/10353/d1006955 , Genocide -- Nigeria , Ethnic conflict -- Nigeria , National characteristics, Nigerian , Citizenship -- Nigeria , Ethnicity -- Nigeria , Multiculturalism -- Nigeria , Economic development -- Nigeria , Nigeria -- Politics and government , Nationalism -- Nigeria , Nigeria -- Social conditions
- Description: The question of ethnicity has been one of the most topical subjects of study by social scientists. The controversies around this phenomenon seem to have been heated up by the high visibility of mobilized and politicized ethnic groups in most multi-ethnic states. Therefore, the extent to which ethnic nationalities are able to effectively manage the interplay of ethnic differences determines to what extent a multi-ethnic nation develops without crisis. Historically Nigeria has come a long way from multi-ethnic entity with political differences and background to the amalgamation of 1914 till the present structure of thirty-six states. Ethnicity, no doubt has contributed immensely to ethnic conflicts in Nigeria because of long standing revulsion or resentments towards ethnic groups different from one’s own or fear of domination which can as well lead ethnic groups to resort to violence as a means to protect and preserve the existing ethnic groups. Significantly ethnicity in Nigeria, is a product inequality among the various ethnic groups orchestrated by a long period of colonialism; a period which witnessed the ascendancy of three major ethnic groups to the socio-political domination of other ethnic groups and a period when the three major ethnic groups were used as a pedestal for the distribution of socio-political goods, resulting in the inability of other ethnic groups to access these socio-political goods. This situation has continued to impact negatively on the forces of national integration and cohesion in ethnically divided Nigeria. Considering the relationship between ethnicity and development; socio-political exclusion is not only ethically dangerous to development but also economically unproductive. It deprives groups and individuals of the opportunity for the necessary development that can be beneficial to the society. Thus, it is important to develop an integrative socio-political frame-work that explicitly recognizes the participatory role of every ethnic group in governance. Hence, there is a need for the adoption of inclusive governance to manage ethnicity in Nigeria. Notwithstanding, ethnic conflict still persists and an attempt will be made in this study to identify the reasons. Central to socio-political sustainability in Nigeria is a system that should recognize that differences are important to development and encompass notions of equality. Such a system should acknowledge the socio-political and economic power of every ethnic group and promote a system devoid of ethnocentric and exclusionary socio-political and economic policies.
- Full Text:
- Date Issued: 2013
Functional changes of the vasculature in HIV/AIDS patients on Haart and Haart Naïve HIV participants
- Authors: Awotedu, Kofoworola Olajire
- Date: 2013
- Subjects: Cardiovascular system -- Diseases HIV infections -- Treatment
- Language: English
- Type: Thesis , Doctoral , Ph D
- Identifier: http://hdl.handle.net/11260/185 , vital:21366
- Description: The present study sought to explore the functional changes that occur in the vasculature of HIV positive participants of African origin in Mthatha district of South africa which might lead to increased risk in their cardiovascular system. Available literature shows that arterial stiffness plays an important role in cardiovascular events such as stroke, vasculitis and myocardial infarction. Measurement of (aortic pulse wave velocity; PWV) provides some of the strongest evidence concerning the prognostic significance of large artery stiffening. This study was aimed at investigating the relationship between anthropometry, age, E-Selectin level, cytokine levels, haemodynamic variables, blood counts and blood lipid profile with pulse wave velocity. Some traditional cardiovascular risk factors such as alcohol, and smoking were also taken into account. This was a cross-sectional study comprising of 169 participants (62 males and 107 females). 63 were HIV negative (group A), 54 HIV positive on treatment (group B), and 52 were HIV positive not on treatment (group C). Pulse wave velocity (PWV) was assessed using the Sphygmocor Vx. Statistically, ANOVA was used for variables with normal distribution and non parametric tests were used for variables with skewed distribution. Notable significant differences were seen in the means of the following variables across all the 3 groups. Conclusion: This study showed that HIV infected patients with or without antiretroviral therapy have increase arterial stiffness which is associated with an increased cardiovascular risk. The sphygmocor is an accurate, non invassive and useful tool in the evaluation of arterial stiffness and its use in clinical practice should be encouraged. PWV and the augmentation index (AIx) are the two major non- iv invasive methods of assessing arterial stiffness. Life style modification should be incorporated into the management of HIV patients so as the continuous monitoring of their haematological and lipid profile.
- Full Text:
- Date Issued: 2013
Functional changes of the vasculature in HIV/AIDS patients on Haart and Haart Naïve HIV participants
- Authors: Awotedu, Kofoworola Olajire
- Date: 2013
- Subjects: Cardiovascular system -- Diseases HIV infections -- Treatment
- Language: English
- Type: Thesis , Doctoral , Ph D
- Identifier: http://hdl.handle.net/11260/185 , vital:21366
- Description: The present study sought to explore the functional changes that occur in the vasculature of HIV positive participants of African origin in Mthatha district of South africa which might lead to increased risk in their cardiovascular system. Available literature shows that arterial stiffness plays an important role in cardiovascular events such as stroke, vasculitis and myocardial infarction. Measurement of (aortic pulse wave velocity; PWV) provides some of the strongest evidence concerning the prognostic significance of large artery stiffening. This study was aimed at investigating the relationship between anthropometry, age, E-Selectin level, cytokine levels, haemodynamic variables, blood counts and blood lipid profile with pulse wave velocity. Some traditional cardiovascular risk factors such as alcohol, and smoking were also taken into account. This was a cross-sectional study comprising of 169 participants (62 males and 107 females). 63 were HIV negative (group A), 54 HIV positive on treatment (group B), and 52 were HIV positive not on treatment (group C). Pulse wave velocity (PWV) was assessed using the Sphygmocor Vx. Statistically, ANOVA was used for variables with normal distribution and non parametric tests were used for variables with skewed distribution. Notable significant differences were seen in the means of the following variables across all the 3 groups. Conclusion: This study showed that HIV infected patients with or without antiretroviral therapy have increase arterial stiffness which is associated with an increased cardiovascular risk. The sphygmocor is an accurate, non invassive and useful tool in the evaluation of arterial stiffness and its use in clinical practice should be encouraged. PWV and the augmentation index (AIx) are the two major non- iv invasive methods of assessing arterial stiffness. Life style modification should be incorporated into the management of HIV patients so as the continuous monitoring of their haematological and lipid profile.
- Full Text:
- Date Issued: 2013
Towards a cost-efficient & standardised monitoring protocol for subtidal reef fish in the Agulhas ecoregion of South Africa
- Bernard, Anthony Thomas Firth
- Authors: Bernard, Anthony Thomas Firth
- Date: 2013
- Subjects: Reef fishes -- South Africa Reef fishes -- Monitoring--South Africa Fish stock assessment -- South Africa Coastal zone management -- South Africa Fish communities -- South Africa Marine parks and reserves -- South Africa Marine resources conservation -- South Africa Marine biodiversity conservation -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5585 , http://hdl.handle.net/10962/d1001674
- Description: Under the growing demand for marine fish resources, and the apparent and expected impacts of global climate change, there is a need to conduct long-term monitoring (LTM) to ensure effective management of resources and conservation of biodiversity. However LTM programmes often suffer from design deficiencies and fail to achieve their objectives. These deficiencies stem from the fact that insufficient consideration is afforded to the design phase, with programmes selecting methods that are not suitable to address the objectives, or are not cost-efficient, compromising the sustainability of the LTM. To facilitate the establishment of LTM programmes along the southern coast of South Africa, background research needed to be conducted to identify which methods were most appropriate for LTM of reef fish. This study presents a detailed field-based assessment of the suitability and cost-efficiency of monitoring methods for long-term monitoring of reef fish in the Agulhas Ecoregion of South Africa. The approach adopted to identify the method, or suite of methods most suited for LTM, involved (i) the selection of methods considered suitable for LTM, (ii) the individual assessment and optimisation of method performance, and (iii) the comparative assessment of the fish community sampled by the different methods. The most suited method(s) were then identified as those that provide the most comprehensive assessment of the fish community and had the highest cost-efficiency. The research was conducted between January 2008 and 2011 in the Tsitsikamma and Table Mountain National Park (TNP and TMNP, respectively) marine protected areas (MPAs) within the Agulhas Ecoregion. The methods selected included fish traps (FT), controlled angling (CA), underwater visual census (UVC), remote underwater video (RUV), baited RUV (BRUV) and remotely operated vehicles (ROV). The individual assessment and optimisation was conducted with the FT, UVC, RUV and BRUV methods. The assessment of the FT method aimed to identify the optimal soak time, and whether or not the size of the funnel entrance to the trap affected the catch. The results identified that larger funnel entrances caught more fish and soak times of 80 minutes produced the highest catches per unit effort. However the data were highly variable and the method detected few of the species typical of the region. Fish traps were also associated with high levels of mortality of fish post-release. The assessment of UVC strip transect method involved directly comparing the precision of data collected by researchers and volunteers using a novel double-observer technique (paired-transects). The results showed considerable error in both the volunteers and researchers data, however the researchers produced significantly higher precision data, compared to the volunteers. The distinction between researchers and volunteers was not evident in the data for the dominant species of fish. For all observers, the abundance of a species in the sample had a significant influence on its detectability, with locally scarce or rare species poorly detected. UVC was able to sample the majority of species typical of reefs in the region, however it appeared plagued by observer and detectability biases. The assessments of RUV and BRUV were conducted simultaneously which enabled the assessment of the effect of bait on the observed fish community. In addition the optimal deployment time for both methods to maximise species richness and abundance was determined. The results showed that BRUV, and to a lesser degree RUV, were able to effectively survey the reef fish community for the region with a 50 minute and 35 minute deployment time, respectively. Baited remote underwater video was especially good at detecting the invertebrate and generalist carnivores, and cartilaginous species. On the other hand, RUV was more effective at surveying the microinvertebrate carnivores. Remote underwater video was characterised by higher data variability, compared to BRUV, and was ultimately considered a less cost-efficient monitoring method. Comparative methods assessments were conducted during two field experiments with the FT, UVC and BRUV methods in the TMNP MPA, and the FT, CA, UVC, RUV, BRUV and ROV methods compared in the TNP MPA. The objectives of the comparison were to investigate differences in the fish communities observed with the different methods, and to determine the power of the data to detect an annual 10% growth in the fish populations over a period of five years. The results from the method comparison were in turn used to conduct the cost-benefit analysis to determine the efficiency of the different methods at achieving monitoring objectives requiring population data from multiple trophic and functional groups with the community, and from species of fisheries importance. The results indicated that FT, CA and ROV were ineffective at monitoring the reef fish community, although CA appeared to provide valuable data for the dominant fisheries species. Both CA and FT required minimal initial investment however, the variability in the data translated into high annual monitoring costs, as the required sampling effort was great. The ROV required the highest initial investment and was identified as the least cost-efficient method. Underwater visual census was able to adequately survey the bony fish within the community, however it did not detect the cartilaginous species. Underwater visual census required a large initial investment and was not cost-efficient, as a many samples were required to account for the variability in the data. Remote underwater video provided a comprehensive assessment of the reef fish community, however it too was associated with high levels of variability in the data, compared to BRUV, reducing its cost-efficiency. BRUV provided the most comprehensive assessment of the reef fish community and was associated with the highest cost-efficiency to address the community and fisheries species monitoring objectives. During the course of this research stereo-BRUV has gained considerable support as an effective reef fish monitoring method. Although not tested during this research, stereo-BRUV is preferred to BRUV as it provides accurate data on the size of fish. However, the initial investment of stereo-BRUV is over three times that required for the BRUV. Although it is recommended that a baited video technique be used for LTM in the Agulhas Ecoregion, the choice between BRUV and stereo-BRUV will depend on the specific objectives of the programme and the available budget at the implementing agency.
- Full Text:
- Date Issued: 2013
- Authors: Bernard, Anthony Thomas Firth
- Date: 2013
- Subjects: Reef fishes -- South Africa Reef fishes -- Monitoring--South Africa Fish stock assessment -- South Africa Coastal zone management -- South Africa Fish communities -- South Africa Marine parks and reserves -- South Africa Marine resources conservation -- South Africa Marine biodiversity conservation -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5585 , http://hdl.handle.net/10962/d1001674
- Description: Under the growing demand for marine fish resources, and the apparent and expected impacts of global climate change, there is a need to conduct long-term monitoring (LTM) to ensure effective management of resources and conservation of biodiversity. However LTM programmes often suffer from design deficiencies and fail to achieve their objectives. These deficiencies stem from the fact that insufficient consideration is afforded to the design phase, with programmes selecting methods that are not suitable to address the objectives, or are not cost-efficient, compromising the sustainability of the LTM. To facilitate the establishment of LTM programmes along the southern coast of South Africa, background research needed to be conducted to identify which methods were most appropriate for LTM of reef fish. This study presents a detailed field-based assessment of the suitability and cost-efficiency of monitoring methods for long-term monitoring of reef fish in the Agulhas Ecoregion of South Africa. The approach adopted to identify the method, or suite of methods most suited for LTM, involved (i) the selection of methods considered suitable for LTM, (ii) the individual assessment and optimisation of method performance, and (iii) the comparative assessment of the fish community sampled by the different methods. The most suited method(s) were then identified as those that provide the most comprehensive assessment of the fish community and had the highest cost-efficiency. The research was conducted between January 2008 and 2011 in the Tsitsikamma and Table Mountain National Park (TNP and TMNP, respectively) marine protected areas (MPAs) within the Agulhas Ecoregion. The methods selected included fish traps (FT), controlled angling (CA), underwater visual census (UVC), remote underwater video (RUV), baited RUV (BRUV) and remotely operated vehicles (ROV). The individual assessment and optimisation was conducted with the FT, UVC, RUV and BRUV methods. The assessment of the FT method aimed to identify the optimal soak time, and whether or not the size of the funnel entrance to the trap affected the catch. The results identified that larger funnel entrances caught more fish and soak times of 80 minutes produced the highest catches per unit effort. However the data were highly variable and the method detected few of the species typical of the region. Fish traps were also associated with high levels of mortality of fish post-release. The assessment of UVC strip transect method involved directly comparing the precision of data collected by researchers and volunteers using a novel double-observer technique (paired-transects). The results showed considerable error in both the volunteers and researchers data, however the researchers produced significantly higher precision data, compared to the volunteers. The distinction between researchers and volunteers was not evident in the data for the dominant species of fish. For all observers, the abundance of a species in the sample had a significant influence on its detectability, with locally scarce or rare species poorly detected. UVC was able to sample the majority of species typical of reefs in the region, however it appeared plagued by observer and detectability biases. The assessments of RUV and BRUV were conducted simultaneously which enabled the assessment of the effect of bait on the observed fish community. In addition the optimal deployment time for both methods to maximise species richness and abundance was determined. The results showed that BRUV, and to a lesser degree RUV, were able to effectively survey the reef fish community for the region with a 50 minute and 35 minute deployment time, respectively. Baited remote underwater video was especially good at detecting the invertebrate and generalist carnivores, and cartilaginous species. On the other hand, RUV was more effective at surveying the microinvertebrate carnivores. Remote underwater video was characterised by higher data variability, compared to BRUV, and was ultimately considered a less cost-efficient monitoring method. Comparative methods assessments were conducted during two field experiments with the FT, UVC and BRUV methods in the TMNP MPA, and the FT, CA, UVC, RUV, BRUV and ROV methods compared in the TNP MPA. The objectives of the comparison were to investigate differences in the fish communities observed with the different methods, and to determine the power of the data to detect an annual 10% growth in the fish populations over a period of five years. The results from the method comparison were in turn used to conduct the cost-benefit analysis to determine the efficiency of the different methods at achieving monitoring objectives requiring population data from multiple trophic and functional groups with the community, and from species of fisheries importance. The results indicated that FT, CA and ROV were ineffective at monitoring the reef fish community, although CA appeared to provide valuable data for the dominant fisheries species. Both CA and FT required minimal initial investment however, the variability in the data translated into high annual monitoring costs, as the required sampling effort was great. The ROV required the highest initial investment and was identified as the least cost-efficient method. Underwater visual census was able to adequately survey the bony fish within the community, however it did not detect the cartilaginous species. Underwater visual census required a large initial investment and was not cost-efficient, as a many samples were required to account for the variability in the data. Remote underwater video provided a comprehensive assessment of the reef fish community, however it too was associated with high levels of variability in the data, compared to BRUV, reducing its cost-efficiency. BRUV provided the most comprehensive assessment of the reef fish community and was associated with the highest cost-efficiency to address the community and fisheries species monitoring objectives. During the course of this research stereo-BRUV has gained considerable support as an effective reef fish monitoring method. Although not tested during this research, stereo-BRUV is preferred to BRUV as it provides accurate data on the size of fish. However, the initial investment of stereo-BRUV is over three times that required for the BRUV. Although it is recommended that a baited video technique be used for LTM in the Agulhas Ecoregion, the choice between BRUV and stereo-BRUV will depend on the specific objectives of the programme and the available budget at the implementing agency.
- Full Text:
- Date Issued: 2013
The role of reasonableness in the review of CCMA arbitration awards in South Africa : an English law comparison
- Authors: Botma-Kleu, Carli Helena
- Date: 2013
- Subjects: Arbitration and award -- South Africa , Labor courts -- South Africa , Law -- South Africa -- English influences
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: vital:10291 , http://hdl.handle.net/10948/d1020196
- Description: In South Africa, the Labour Courts have experienced an important and continuing controversy regarding the permissible scope of judicial review of arbitration awards of the Commission for Conciliation Mediation and Arbitration (“CCMA”) in terms of section 145 of the Labour Relations Act 66 of 1995 (“LRA”). Section 145(1) of the LRA specifically provides that arbitration awards, generally considered final and binding, can be reviewed and set aside by the Labour Court on the basis of a defect as defined in section 145(2)(a) and (b). These defects are not prescribed in an open-ended manner but limited to decisions involving allegations of misconduct by the commissioner in relation to his or her duties, a gross irregularity in the conduct of the proceedings and/or allegations that the commissioner exceeded his or her powers or that the award was improperly obtained. Unreasonableness and/or irrationality are not included within the scope of a defect as per section 145(2)(a) and (b). Initially, Carephone (Pty) Ltd v Marcus NO & others 1998 11 BLLR 1093 (LAC) found that the interpretation of section 145 was influenced by rational justifiability in accordance with the right to just administrative action as provided for in section 33, read with item 23(2) of Schedule 6, of the Constitution of the Republic of South Africa, 1996 (‘the 1996 Constitution’). Today, leading precedent in the form of Sidumo & another v Rustenburg Platinum Mines Ltd & others 2007 12 BLLR 1097 (CC) dictates that section 145 of the LRA is suffused by reasonableness in accordance with the right to just administrative action as provided for in section 33 of the 1996 Constitution. The ultimate enquiry is whether the arbitration award is one that a reasonable decision-maker could reach as articulated in Bato Star Fishing (Pty) Ltd v Minister of Environmental Affairs and Tourism and others 2004 4 SA 490 (CC). However, the enquiry into the reasonableness of a decision is indistinct. As a result, the Labour Courts have struggled to apply the concept of reasonableness in a consistent manner. This thesis seeks to identify the proper role of reasonableness in the judicial review process, including identifying factors that would assist in recognising an unreasonable decision. Relevant principles of judicial review in South Africa in the general administrative law context are considered and distinguished from the process of appeal. An assessment of English case law and commentary in the field of both administrative and employment law is conducted. Finally an extensive examination of South African case law and commentary on the subject, both pre- and post Sidumo, is undertaken. The English law approach is found to provide greater clarity to the interpretation of reasonableness in South African labour law in several respects.
- Full Text:
- Date Issued: 2013
- Authors: Botma-Kleu, Carli Helena
- Date: 2013
- Subjects: Arbitration and award -- South Africa , Labor courts -- South Africa , Law -- South Africa -- English influences
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: vital:10291 , http://hdl.handle.net/10948/d1020196
- Description: In South Africa, the Labour Courts have experienced an important and continuing controversy regarding the permissible scope of judicial review of arbitration awards of the Commission for Conciliation Mediation and Arbitration (“CCMA”) in terms of section 145 of the Labour Relations Act 66 of 1995 (“LRA”). Section 145(1) of the LRA specifically provides that arbitration awards, generally considered final and binding, can be reviewed and set aside by the Labour Court on the basis of a defect as defined in section 145(2)(a) and (b). These defects are not prescribed in an open-ended manner but limited to decisions involving allegations of misconduct by the commissioner in relation to his or her duties, a gross irregularity in the conduct of the proceedings and/or allegations that the commissioner exceeded his or her powers or that the award was improperly obtained. Unreasonableness and/or irrationality are not included within the scope of a defect as per section 145(2)(a) and (b). Initially, Carephone (Pty) Ltd v Marcus NO & others 1998 11 BLLR 1093 (LAC) found that the interpretation of section 145 was influenced by rational justifiability in accordance with the right to just administrative action as provided for in section 33, read with item 23(2) of Schedule 6, of the Constitution of the Republic of South Africa, 1996 (‘the 1996 Constitution’). Today, leading precedent in the form of Sidumo & another v Rustenburg Platinum Mines Ltd & others 2007 12 BLLR 1097 (CC) dictates that section 145 of the LRA is suffused by reasonableness in accordance with the right to just administrative action as provided for in section 33 of the 1996 Constitution. The ultimate enquiry is whether the arbitration award is one that a reasonable decision-maker could reach as articulated in Bato Star Fishing (Pty) Ltd v Minister of Environmental Affairs and Tourism and others 2004 4 SA 490 (CC). However, the enquiry into the reasonableness of a decision is indistinct. As a result, the Labour Courts have struggled to apply the concept of reasonableness in a consistent manner. This thesis seeks to identify the proper role of reasonableness in the judicial review process, including identifying factors that would assist in recognising an unreasonable decision. Relevant principles of judicial review in South Africa in the general administrative law context are considered and distinguished from the process of appeal. An assessment of English case law and commentary in the field of both administrative and employment law is conducted. Finally an extensive examination of South African case law and commentary on the subject, both pre- and post Sidumo, is undertaken. The English law approach is found to provide greater clarity to the interpretation of reasonableness in South African labour law in several respects.
- Full Text:
- Date Issued: 2013
Market triumphalism and the South Afican state: a case study of local government in the Eastern Cape
- Breakfast, Ntsikelelo Benjamin
- Authors: Breakfast, Ntsikelelo Benjamin
- Date: 2013
- Subjects: Local government -- South Africa -- East London -- Case studies , Local government -- South Africa -- Port Elizabeth -- Case studies , Development economics -- South Africa -- East London , Development economics -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8267 , http://hdl.handle.net/10948/d1014085
- Description: At a glance, this study is a critique of local development policies with specific reference to the Buffalo City and Nelson Mandela Metropolitan Municipalities in the Eastern Cape. The researcher enters the debate by posing a primary research question: Do the Public-Private Partnerships (PPP) and Broad-Based Black Economic Empowerment (BBBEE) ventures that constitute anti-poverty strategies succeed in addressing the issues of poverty, and achieving more equitable development at the municipal level in the Eastern Cape? This research proposes a problem statement: The local development policies of PPP and BBBEE that are being applied through Local Economic Development strategies are not in the interests of the majority of people living in the Eastern Cape. At a methodological level this research employs both quantitative and qualitative approaches to answer the central question and to verify the problem statement of this study. This triangulation approach is employed to utilize the strengths of both quantitative and qualitative methods. More specifically, the researcher uses a number of different research instruments to collect the data including four hundred questionnaires, four focus groups and elite interviews in both municipalities. The findings of this study indicate that local development policies in both municipalities do not improve the lives of the people. This line of thinking is indicated by both the empirical study conducted by the researcher and is supported by a number of scholarly materials. This study contributes to the body of knowledge in Political Economy and Development Studies including other disciplines in Social and Economic Sciences. The central argument of this thesis is that both BBBEE and PPPs are inspired by neo-liberalism (BBBEE is not neo-liberal per se though it may be heavily influenced by it) and neo-liberalism in practice is contradictory in nature as it involves the allocation of state resources to politically influential individuals, rather than promoting economic development for the majority. The evidence of this research further shows that the local business and political elites through the BBBEE, PPPs and outsourcing of services are using their strong networks (associated political, social and capital resources) in their efforts for personal accumulation. The researcher in this study examines the local development policies from a particular standpoint which is a political economy approach. The business and political elites according to political economic perspective use state resources to enrich themselves.
- Full Text:
- Date Issued: 2013
Market triumphalism and the South Afican state: a case study of local government in the Eastern Cape
- Authors: Breakfast, Ntsikelelo Benjamin
- Date: 2013
- Subjects: Local government -- South Africa -- East London -- Case studies , Local government -- South Africa -- Port Elizabeth -- Case studies , Development economics -- South Africa -- East London , Development economics -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8267 , http://hdl.handle.net/10948/d1014085
- Description: At a glance, this study is a critique of local development policies with specific reference to the Buffalo City and Nelson Mandela Metropolitan Municipalities in the Eastern Cape. The researcher enters the debate by posing a primary research question: Do the Public-Private Partnerships (PPP) and Broad-Based Black Economic Empowerment (BBBEE) ventures that constitute anti-poverty strategies succeed in addressing the issues of poverty, and achieving more equitable development at the municipal level in the Eastern Cape? This research proposes a problem statement: The local development policies of PPP and BBBEE that are being applied through Local Economic Development strategies are not in the interests of the majority of people living in the Eastern Cape. At a methodological level this research employs both quantitative and qualitative approaches to answer the central question and to verify the problem statement of this study. This triangulation approach is employed to utilize the strengths of both quantitative and qualitative methods. More specifically, the researcher uses a number of different research instruments to collect the data including four hundred questionnaires, four focus groups and elite interviews in both municipalities. The findings of this study indicate that local development policies in both municipalities do not improve the lives of the people. This line of thinking is indicated by both the empirical study conducted by the researcher and is supported by a number of scholarly materials. This study contributes to the body of knowledge in Political Economy and Development Studies including other disciplines in Social and Economic Sciences. The central argument of this thesis is that both BBBEE and PPPs are inspired by neo-liberalism (BBBEE is not neo-liberal per se though it may be heavily influenced by it) and neo-liberalism in practice is contradictory in nature as it involves the allocation of state resources to politically influential individuals, rather than promoting economic development for the majority. The evidence of this research further shows that the local business and political elites through the BBBEE, PPPs and outsourcing of services are using their strong networks (associated political, social and capital resources) in their efforts for personal accumulation. The researcher in this study examines the local development policies from a particular standpoint which is a political economy approach. The business and political elites according to political economic perspective use state resources to enrich themselves.
- Full Text:
- Date Issued: 2013
The use of Geographical Information Systems for the promotion of spatial cognition, spatial perspective taking and problem solving in school level geography
- Authors: Britz, Hendrina Wilhemina
- Date: 2013
- Subjects: Geography -- Study and teaching -- South Africa -- Port Elizabeth , Geographic information systems -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:9579 , http://hdl.handle.net/10948/d1020298
- Description: A question asked at the United States of America (USA) National Council for Geographic Education (NCGE) conference in 1967, namely, what learning does GIS allow that other ways do not and whether teaching GIS at school level is worth the time and effort required to implement it, remains largely unanswered. Literature searches suggest that little more has been done since 1967 to investigate the effectiveness of GIS in education, or that there are any findings to suggest that GIS is worth the time and effort to implement in schools. Internationally the implementation of GIS software and geo-spatial data in schools has been slow, and South Africa is no exception. The main reasons given for slow implementation internationally have included lack of resources, lack of training and lack of time. The majority of secondary schools that offer Geography in the Port Elizabeth Education District, South Africa, teach GIS theory without the use of GIS software and geo-spatial data. The purpose of this research was to elicit the perceptions of secondary school level Geography teachers and learners of the benefits, barriers and obstacles to implementing GIS software and geo-spatial data as a teaching strategy. As a focused exercise to investigate what learning using GIS allows that other ways do not, this study also investigated whether using GIS as a teaching and learning strategy enables the promotion of learners spatial cognition, spatial perspective taking and problem solving abilities better than traditional methods do. The findings are viewed through the lens of developing Crystallized Intelligence (Gc), Spatial Intelligence (Gv) and Fluid Intelligence (Gf), respectively. The study followed a concurrent transformative mixed methods design with pre-post testing and the use of crossover experimental and control groups to generate both qualitative and quantitative data. Questionnaires aimed at all secondary Geography teachers in the Port Elizabeth Education District were used to assess how GIS is taught in their schools and to evaluate their perceptions of the benefits and barriers of implementing GIS software and geo-spatial data in the classroom. Four secondary school Geography teachers in four schools volunteered to take part in the experimental aspects of the study. Empirical data on the development of spatial cognition, spatial perspective taking, and problem solving were generated via pre- and post-tests in which the grade 11 Geography learners participated. Experimental and comparison groups of learners wrote four different types of pre- and post-tests where the experimental groups worked on GIS software with geo-spatial data while the comparison groups used traditional methods. Teacher interviews and learner interviews were also conducted to assess attitudes towards GIS software and geo-spatial data as a teaching strategy. The results from this aspect of the study mirrored the benefits and barriers to implementing GIS in schools recorded in international literature. However, and possibly more importantly, the empirical data generated by the learners revealed that GIS software and geo-spatial data do statistically significantly promote better spatial cognition (Crystallized Intelligence) and spatial perspective taking (Spatial Intelligence) than traditional methods do (i.e. using atlases, rulers and calculators). No improvement was found in the experimental groups‟ problem solving abilities. This report offers possible explanations and recommendations in terms of socio-cultural findings from other educational studies on the effects of exploratory talk on the development of Fluid Intelligence. Recommendations are made for the attention of curriculum developers, teachers, school principals, departmental officials and other educational stakeholders in terms of what is required for the successful implementation of GIS software and the use of geo-spatial data in secondary school Geography classes.
- Full Text:
- Date Issued: 2013
- Authors: Britz, Hendrina Wilhemina
- Date: 2013
- Subjects: Geography -- Study and teaching -- South Africa -- Port Elizabeth , Geographic information systems -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:9579 , http://hdl.handle.net/10948/d1020298
- Description: A question asked at the United States of America (USA) National Council for Geographic Education (NCGE) conference in 1967, namely, what learning does GIS allow that other ways do not and whether teaching GIS at school level is worth the time and effort required to implement it, remains largely unanswered. Literature searches suggest that little more has been done since 1967 to investigate the effectiveness of GIS in education, or that there are any findings to suggest that GIS is worth the time and effort to implement in schools. Internationally the implementation of GIS software and geo-spatial data in schools has been slow, and South Africa is no exception. The main reasons given for slow implementation internationally have included lack of resources, lack of training and lack of time. The majority of secondary schools that offer Geography in the Port Elizabeth Education District, South Africa, teach GIS theory without the use of GIS software and geo-spatial data. The purpose of this research was to elicit the perceptions of secondary school level Geography teachers and learners of the benefits, barriers and obstacles to implementing GIS software and geo-spatial data as a teaching strategy. As a focused exercise to investigate what learning using GIS allows that other ways do not, this study also investigated whether using GIS as a teaching and learning strategy enables the promotion of learners spatial cognition, spatial perspective taking and problem solving abilities better than traditional methods do. The findings are viewed through the lens of developing Crystallized Intelligence (Gc), Spatial Intelligence (Gv) and Fluid Intelligence (Gf), respectively. The study followed a concurrent transformative mixed methods design with pre-post testing and the use of crossover experimental and control groups to generate both qualitative and quantitative data. Questionnaires aimed at all secondary Geography teachers in the Port Elizabeth Education District were used to assess how GIS is taught in their schools and to evaluate their perceptions of the benefits and barriers of implementing GIS software and geo-spatial data in the classroom. Four secondary school Geography teachers in four schools volunteered to take part in the experimental aspects of the study. Empirical data on the development of spatial cognition, spatial perspective taking, and problem solving were generated via pre- and post-tests in which the grade 11 Geography learners participated. Experimental and comparison groups of learners wrote four different types of pre- and post-tests where the experimental groups worked on GIS software with geo-spatial data while the comparison groups used traditional methods. Teacher interviews and learner interviews were also conducted to assess attitudes towards GIS software and geo-spatial data as a teaching strategy. The results from this aspect of the study mirrored the benefits and barriers to implementing GIS in schools recorded in international literature. However, and possibly more importantly, the empirical data generated by the learners revealed that GIS software and geo-spatial data do statistically significantly promote better spatial cognition (Crystallized Intelligence) and spatial perspective taking (Spatial Intelligence) than traditional methods do (i.e. using atlases, rulers and calculators). No improvement was found in the experimental groups‟ problem solving abilities. This report offers possible explanations and recommendations in terms of socio-cultural findings from other educational studies on the effects of exploratory talk on the development of Fluid Intelligence. Recommendations are made for the attention of curriculum developers, teachers, school principals, departmental officials and other educational stakeholders in terms of what is required for the successful implementation of GIS software and the use of geo-spatial data in secondary school Geography classes.
- Full Text:
- Date Issued: 2013
The adaptation of the 'Clinical Outcomes in Routine Evaluation-Outcome Measure' (CORE-OM) from English into a valid Xhosa measure of distress
- Authors: Campbell, Megan Michelle
- Date: 2013 , 2013-06-06
- Subjects: Psychometrics -- Research -- South Africa Psychology -- Mathematical models -- Research -- South Africa Psychological tests -- Research -- South Africa Mental health services -- Research -- South Africa Health services accessibility -- Research -- South Africa Language disorders -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2894 , http://hdl.handle.net/10962/d1001538
- Description: In South Africa access to mental healthcare resources is restricted for a number of reasons including language barriers that prevent suitable communication between mental healthcare professionals and African language speaking South Africans. The translation of psychometric tools into African languages has been identified as one method in improving access to psychological services for African language speakers. The Clinical Outcomes in Routine Evaluation - Outcome Measure (CORE-OM) has demonstrated its clinical utility within the United Kingdom (UK) National Healthcare Service (NHS) as a standardised psychotherapy outcome measure that evaluates the degree of psychological distress individuals present with at the start of psychotherapy treatment, and the degree of change that has been effected at the termination of therapy. A measure like the CORE-OM holds valuable clinical utility for the South African context. This thesis argues that the availability of a valid Xhosa version of the CORE-OM would allow for improved access to psychotherapy resources for Xhosa speaking individuals, and allow for the evaluation of the effectiveness of psychotherapy interventions conducted in Xhosa. The CORE-OM developers have provided a translation design and set of guidelines to standardise the translation of the CORE-OM into different languages. However this thesis argues that these guidelines are incomplete. Instead International Test Commission (ITC) guidelines are recommended as a culturally sensitive method to supplement current CORE-OM translation guidelines, in order to generate a valid Xhosa measure of distress. A mixed methods approach is applied which first investigates the construct equivalence and bias of the CORE-OM English version within a South African student population sample, both qualitatively and quantitatively, in order to establish the degree of adaptation required to generate a valid Xhosa version of distress. Next the CORE-OM English version is translated into Xhosa using the five-stage translation design prescribed by the CORE System Trust, supplemented by ITC guidelines. All changes made to the CORE-OM during translation into Xhosa are documented. The CORE-OM Xhosa version is then investigated for reliability and validity. This investigation reveals low internal reliability within the subjective wellbeing domain indicating that these items are less meaningful as depictions of distress within the Xhosa language. A reduced version of the CORE-OM demonstrates strong psychometric properties as a valid Xhosa measure of distress.
- Full Text:
- Date Issued: 2013
- Authors: Campbell, Megan Michelle
- Date: 2013 , 2013-06-06
- Subjects: Psychometrics -- Research -- South Africa Psychology -- Mathematical models -- Research -- South Africa Psychological tests -- Research -- South Africa Mental health services -- Research -- South Africa Health services accessibility -- Research -- South Africa Language disorders -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2894 , http://hdl.handle.net/10962/d1001538
- Description: In South Africa access to mental healthcare resources is restricted for a number of reasons including language barriers that prevent suitable communication between mental healthcare professionals and African language speaking South Africans. The translation of psychometric tools into African languages has been identified as one method in improving access to psychological services for African language speakers. The Clinical Outcomes in Routine Evaluation - Outcome Measure (CORE-OM) has demonstrated its clinical utility within the United Kingdom (UK) National Healthcare Service (NHS) as a standardised psychotherapy outcome measure that evaluates the degree of psychological distress individuals present with at the start of psychotherapy treatment, and the degree of change that has been effected at the termination of therapy. A measure like the CORE-OM holds valuable clinical utility for the South African context. This thesis argues that the availability of a valid Xhosa version of the CORE-OM would allow for improved access to psychotherapy resources for Xhosa speaking individuals, and allow for the evaluation of the effectiveness of psychotherapy interventions conducted in Xhosa. The CORE-OM developers have provided a translation design and set of guidelines to standardise the translation of the CORE-OM into different languages. However this thesis argues that these guidelines are incomplete. Instead International Test Commission (ITC) guidelines are recommended as a culturally sensitive method to supplement current CORE-OM translation guidelines, in order to generate a valid Xhosa measure of distress. A mixed methods approach is applied which first investigates the construct equivalence and bias of the CORE-OM English version within a South African student population sample, both qualitatively and quantitatively, in order to establish the degree of adaptation required to generate a valid Xhosa version of distress. Next the CORE-OM English version is translated into Xhosa using the five-stage translation design prescribed by the CORE System Trust, supplemented by ITC guidelines. All changes made to the CORE-OM during translation into Xhosa are documented. The CORE-OM Xhosa version is then investigated for reliability and validity. This investigation reveals low internal reliability within the subjective wellbeing domain indicating that these items are less meaningful as depictions of distress within the Xhosa language. A reduced version of the CORE-OM demonstrates strong psychometric properties as a valid Xhosa measure of distress.
- Full Text:
- Date Issued: 2013
The interaction of children's rights, education rights and freedom of religion in South African schools
- Authors: Chetty, Kasturi
- Date: 2013
- Subjects: Children's rights -- South Africa , Children -- Legal status, laws, etc -- South Africa , Freedom of religion -- South Africa , School children -- South Africa
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: vital:10295 , http://hdl.handle.net/10948/d1020864
- Description: This study examines the topic of the interaction of children’s rights, education rights and freedom of religion in South African schools from a legal perspective. It comprises of a discussion on the historical development of religion in South African schools; South Africa’s international obligations with regards to children’s rights, education rights and freedom of religion and the South African substantive law pertaining to children rights, education and freedom of religion as impacting on legal issues pertaining to religion in schools. The study utilises a desktop approach, which comprises of a wide range of legal and other literary sources, international instruments, statutes and case law on children’s rights, education rights and freedom of religion. Importantly, it highlights the integral connection between these aforementioned rights when dealing with issues pertaining to religion in schools. This thesis illustrates that much of the historical development of religion in schools took place without consideration of children’s rights, or more particularly, the best interests of the learners. Instead, (a particular brand of) religious beliefs were promoted in education above other religions and the well-being of school-children. Furthermore, despite the introduction of specific children’s rights into the Constitution, this thesis emphasises that the rights of children have still not been recognised sufficiently in education laws and policies. It is submitted that children’s rights have a paramount and practical role to play in matters pertaining to religion in South African schools. Consequently, it is recommended that children’s rights, more particularly the best interests of the child principle, should be expressly introduced into education legislation and policies. This will create legal obligations for school administrators and SGBs on the inclusion of children’s rights in religious exemption procedures. Furthermore, it is recommended that national guidelines on religious/cultural exemptions (which incorporate children’s rights) be developed which will set legal parameters for the handling of religious/cultural exemption procedures in schools. This thesis also argues against the interpretation that the right to establish private schools includes the right to require religious conformity from non-adherent learners by way of a complete waiver of their religious freedom. Despite the importance of respecting the right of religious communities to protect and preserve their faith in private schools, it is submitted that this right cannot be exercised without regard for the religious freedom, dignity and best interests of non-adherent children. As a result, it is submitted that the waiver of the freedom of religion of non-adherent children is not consistent with the values which South African society reveres and therefore cannot be enforced. This thesis suggests that there is a way for the rights of private schools and the rights of non-adherent children to co-exist in harmony through the application of the reasonable accommodation principle in private schools. Reasonable accommodation of different faiths teaches religious tolerance to leaners in private schools and ensures that they are prepared to grapple with the religious diversity that they will inevitably face outside of the school environment. It is submitted that the enforcement of reasonable accommodation in private schools is to the benefit of all learners in private schools and to South African society in general. Moreover, this study questions and analyses the state’s provision of compulsory religion education in public schools through the National Policy on Religion and Education. A theoretical distinction is made between religion education and religious instruction in the National Policy itself. Religious instruction refers to the teaching of specific religious beliefs. Religion education refers to the teaching about different religions and worldviews from an academic perspective. It is submitted that the National Policy is correct in removing religious instruction from public schools as this would not be in accordance with freedom of religion or equality rights of learners who are not of the majority faith. It is submitted further that, although the provision of compulsory religion education in public schools impacts upon the freedom of religion of learners and their parents, (if taught correctly) it is a reasonable and justifiable limitation on freedom of religion in that it pursues the legitimate state goal of nation-building through the teaching of religious tolerance and “celebrating diversity” in schools. In light of South Africa’s history of religious discrimination, it must be recognised that the current position (although not problem- free) is a significant step forward in the protection of minority religious rights in South African schools. Despite this, it is submitted that there are numerous problems with the implementation of the National Policy that impact upon the dignity, equality and other rights of the learners concerned. These problems cannot be ignored since they impact upon the daily lives of school children. However, many of these problems can be minimised through more effective teacher training in this subject area. Accordingly, this thesis recommends that the current position be maintained as an acceptable compromise between the two extremes of providing religious instruction in one faith and removing religion education from public schools altogether. However, it emphasises that the state has to make a concerted effort to improve teacher training in this subject area in order to ensure that the objectives of the National Policy are carried out as envisaged. Furthermore, this thesis finds that certain provisions of the National Policy contain not only educational goals, but spiritual goals. Also in some instances, it is difficult to determine whether the religion education curriculum borders on being religious or not. In accordance with freedom of religion, it is submitted that the line between religion education and religious instruction must be clearly drawn in law and in practice. Consequently, the state must reconsider the National Policy and the corresponding religion education curriculum to ensure that they are aligned with the objectives of nation-building in all respects, meaning that any provisions or learning outcomes which have purely spiritual goals- must be amended or removed.
- Full Text:
- Date Issued: 2013
- Authors: Chetty, Kasturi
- Date: 2013
- Subjects: Children's rights -- South Africa , Children -- Legal status, laws, etc -- South Africa , Freedom of religion -- South Africa , School children -- South Africa
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: vital:10295 , http://hdl.handle.net/10948/d1020864
- Description: This study examines the topic of the interaction of children’s rights, education rights and freedom of religion in South African schools from a legal perspective. It comprises of a discussion on the historical development of religion in South African schools; South Africa’s international obligations with regards to children’s rights, education rights and freedom of religion and the South African substantive law pertaining to children rights, education and freedom of religion as impacting on legal issues pertaining to religion in schools. The study utilises a desktop approach, which comprises of a wide range of legal and other literary sources, international instruments, statutes and case law on children’s rights, education rights and freedom of religion. Importantly, it highlights the integral connection between these aforementioned rights when dealing with issues pertaining to religion in schools. This thesis illustrates that much of the historical development of religion in schools took place without consideration of children’s rights, or more particularly, the best interests of the learners. Instead, (a particular brand of) religious beliefs were promoted in education above other religions and the well-being of school-children. Furthermore, despite the introduction of specific children’s rights into the Constitution, this thesis emphasises that the rights of children have still not been recognised sufficiently in education laws and policies. It is submitted that children’s rights have a paramount and practical role to play in matters pertaining to religion in South African schools. Consequently, it is recommended that children’s rights, more particularly the best interests of the child principle, should be expressly introduced into education legislation and policies. This will create legal obligations for school administrators and SGBs on the inclusion of children’s rights in religious exemption procedures. Furthermore, it is recommended that national guidelines on religious/cultural exemptions (which incorporate children’s rights) be developed which will set legal parameters for the handling of religious/cultural exemption procedures in schools. This thesis also argues against the interpretation that the right to establish private schools includes the right to require religious conformity from non-adherent learners by way of a complete waiver of their religious freedom. Despite the importance of respecting the right of religious communities to protect and preserve their faith in private schools, it is submitted that this right cannot be exercised without regard for the religious freedom, dignity and best interests of non-adherent children. As a result, it is submitted that the waiver of the freedom of religion of non-adherent children is not consistent with the values which South African society reveres and therefore cannot be enforced. This thesis suggests that there is a way for the rights of private schools and the rights of non-adherent children to co-exist in harmony through the application of the reasonable accommodation principle in private schools. Reasonable accommodation of different faiths teaches religious tolerance to leaners in private schools and ensures that they are prepared to grapple with the religious diversity that they will inevitably face outside of the school environment. It is submitted that the enforcement of reasonable accommodation in private schools is to the benefit of all learners in private schools and to South African society in general. Moreover, this study questions and analyses the state’s provision of compulsory religion education in public schools through the National Policy on Religion and Education. A theoretical distinction is made between religion education and religious instruction in the National Policy itself. Religious instruction refers to the teaching of specific religious beliefs. Religion education refers to the teaching about different religions and worldviews from an academic perspective. It is submitted that the National Policy is correct in removing religious instruction from public schools as this would not be in accordance with freedom of religion or equality rights of learners who are not of the majority faith. It is submitted further that, although the provision of compulsory religion education in public schools impacts upon the freedom of religion of learners and their parents, (if taught correctly) it is a reasonable and justifiable limitation on freedom of religion in that it pursues the legitimate state goal of nation-building through the teaching of religious tolerance and “celebrating diversity” in schools. In light of South Africa’s history of religious discrimination, it must be recognised that the current position (although not problem- free) is a significant step forward in the protection of minority religious rights in South African schools. Despite this, it is submitted that there are numerous problems with the implementation of the National Policy that impact upon the dignity, equality and other rights of the learners concerned. These problems cannot be ignored since they impact upon the daily lives of school children. However, many of these problems can be minimised through more effective teacher training in this subject area. Accordingly, this thesis recommends that the current position be maintained as an acceptable compromise between the two extremes of providing religious instruction in one faith and removing religion education from public schools altogether. However, it emphasises that the state has to make a concerted effort to improve teacher training in this subject area in order to ensure that the objectives of the National Policy are carried out as envisaged. Furthermore, this thesis finds that certain provisions of the National Policy contain not only educational goals, but spiritual goals. Also in some instances, it is difficult to determine whether the religion education curriculum borders on being religious or not. In accordance with freedom of religion, it is submitted that the line between religion education and religious instruction must be clearly drawn in law and in practice. Consequently, the state must reconsider the National Policy and the corresponding religion education curriculum to ensure that they are aligned with the objectives of nation-building in all respects, meaning that any provisions or learning outcomes which have purely spiritual goals- must be amended or removed.
- Full Text:
- Date Issued: 2013
Exploring and expanding capabilities, sustainability and gender justice in science teacher education : case studies in Zimbabwe and South Africa
- Authors: Chikunda, Charles
- Date: 2013 , 2013-08-30
- Subjects: Science teachers -- Training of -- South Africa -- Case studies Science teachers -- Training of -- Zimbabwe -- Case studies Mathematics teachers -- Training of -- South Africa -- Case studies Women in education -- South Africa -- Case studies Women in education -- Zimbabwe -- Case studies Environmental education -- Study and teaching -- Case studies Curriculum planning -- South Africa Curriculum planning -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1887 , http://hdl.handle.net/10962/d1006026
- Description: The focus of this study was to explore and expand capabilities, sustainability and gender justice in Science, Mathematics and Technical subjects (SMTs) in teacher education curriculum practices as a process of Education for Sustainable Development in two case studies in Zimbabwe and South Africa. The study begins by discussing gender and science education discourse, locating it within Education for Sustainable Development discourse. Through this nexus, the study was able to explore gender and sustainability responsiveness of the curriculum practices of teacher educators in Science, Mathematics and Technical subjects; scrutinise underlying mechanisms that affect (promote or constrain) gender and sustainability responsive curriculum practices; and understand if and how teacher education curriculum practices consider the functionings and capabilities of females in relation to increased socio-ecological risk in a Southern African context. Influenced by a curriculum transformation commitment, an expansive learning phase was conducted to promote gender and sustainability responsive pedagogies in teacher education curriculum practices. As shown in the study, the expansive learning processes resulted in (re)conceptualising the curriculum practices (object), analysis of contradictions and developing new ways of doing work. Drawing from the sensitising concepts of dialectics, reflexivity and agency, the study worked with the three theoretical approaches of Cultural Historical Activity Theory (CHAT), feminist theory and capabilities theory. The capability and feminist lenses were used in the exploration of gender and sustainability responsiveness in science teacher education curriculum practices. CHAT, through its associated methodology of Developmental Work Research, offered the opportunity for researcher and participants in this study to come together to question and analyse curriculum practices and model new ways of doing work. Case study research was used in two case studies of teacher education curriculum practices in Science, Mathematics and Technical subjects, one in Zimbabwe and one in South Africa. Each case study is constituted with a networked activity system. The study used in-depth and focus group interviews and document analysis to explore gender and sustainability responsiveness in curriculum practices and to generate mirror data. Inductive and abductive modes of inference, and Critical Discourse Analysis were used to analyse data. This data was then used in Change Laboratory Workshops, where double stimulation and focus group discussions contributed to the expansive learning process. Findings from the exploration phase of the study revealed that most teacher educators in the two case studies had some basic levels of gender sensitivity, meaning that they had ability to perceive existing gender inequalities as it applies only to gender disaggregated data especially when it comes to enrolment and retention. However, there was no institutionalised pedagogic device in place in both case studies aimed at equipping future teachers with knowledge, skills, attitudes and values to promote aspects of capabilities (well-being achievement, wellbeing freedom, agency achievement and agency freedom) for girls in Science, Mathematics and Technical subjects. Science, Mathematics and Technical subjects teacher educators' curriculum practices were gender neutral, but in a gendered environment. This was a pedagogical tension that was visible in both case studies. On the other hand, socio-ecological issues, in cases where they were incorporated into the curriculum, were incorporated in a gender blind or gender neutral manner. Social ecological concerns such as climate change were treated as if they were not gendered both in their impact and in their mitigation and adaptation. It emerged that causal mechanisms shaping this situation were of a socio-political nature: there exist cultural differences between students and teacher educators; patriarchal ideology and hegemony; as well as other interfering binaries such as race and class. Other curriculum related constraints, though embedded in the socio-cultural-political nexus, include: rigid and content heavy curriculum, coupled with students who come into the system with inadequate content knowledge; and philosophy informing pedagogy namely scientism, with associated instrumentalist and functionalist tenets. All these led to contradictions between pedagogical practices with those expected by the Education for Sustainable Development framework. The study contributes in-depth insight into science teacher education curriculum development. By locating the study at the nexus of gender and Science, Mathematics and Technical subjects within the Education for Sustainable Development discourse, using the ontological lenses of feminist and capabilities, it was possible to interrogate aspects of quality and relevance of the science teacher education curriculum. The study also provides insight into participatory research and learning processes especially within the context of policy and curriculum development. It provides empirical evidence of mobilising reflexivity amongst both policy makers and policy implementers towards building human agency in policy translation for a curriculum transformation that is critical for responding to contemporary socio-ecological risks. , Microsoft� Word 2010 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2013
- Authors: Chikunda, Charles
- Date: 2013 , 2013-08-30
- Subjects: Science teachers -- Training of -- South Africa -- Case studies Science teachers -- Training of -- Zimbabwe -- Case studies Mathematics teachers -- Training of -- South Africa -- Case studies Women in education -- South Africa -- Case studies Women in education -- Zimbabwe -- Case studies Environmental education -- Study and teaching -- Case studies Curriculum planning -- South Africa Curriculum planning -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1887 , http://hdl.handle.net/10962/d1006026
- Description: The focus of this study was to explore and expand capabilities, sustainability and gender justice in Science, Mathematics and Technical subjects (SMTs) in teacher education curriculum practices as a process of Education for Sustainable Development in two case studies in Zimbabwe and South Africa. The study begins by discussing gender and science education discourse, locating it within Education for Sustainable Development discourse. Through this nexus, the study was able to explore gender and sustainability responsiveness of the curriculum practices of teacher educators in Science, Mathematics and Technical subjects; scrutinise underlying mechanisms that affect (promote or constrain) gender and sustainability responsive curriculum practices; and understand if and how teacher education curriculum practices consider the functionings and capabilities of females in relation to increased socio-ecological risk in a Southern African context. Influenced by a curriculum transformation commitment, an expansive learning phase was conducted to promote gender and sustainability responsive pedagogies in teacher education curriculum practices. As shown in the study, the expansive learning processes resulted in (re)conceptualising the curriculum practices (object), analysis of contradictions and developing new ways of doing work. Drawing from the sensitising concepts of dialectics, reflexivity and agency, the study worked with the three theoretical approaches of Cultural Historical Activity Theory (CHAT), feminist theory and capabilities theory. The capability and feminist lenses were used in the exploration of gender and sustainability responsiveness in science teacher education curriculum practices. CHAT, through its associated methodology of Developmental Work Research, offered the opportunity for researcher and participants in this study to come together to question and analyse curriculum practices and model new ways of doing work. Case study research was used in two case studies of teacher education curriculum practices in Science, Mathematics and Technical subjects, one in Zimbabwe and one in South Africa. Each case study is constituted with a networked activity system. The study used in-depth and focus group interviews and document analysis to explore gender and sustainability responsiveness in curriculum practices and to generate mirror data. Inductive and abductive modes of inference, and Critical Discourse Analysis were used to analyse data. This data was then used in Change Laboratory Workshops, where double stimulation and focus group discussions contributed to the expansive learning process. Findings from the exploration phase of the study revealed that most teacher educators in the two case studies had some basic levels of gender sensitivity, meaning that they had ability to perceive existing gender inequalities as it applies only to gender disaggregated data especially when it comes to enrolment and retention. However, there was no institutionalised pedagogic device in place in both case studies aimed at equipping future teachers with knowledge, skills, attitudes and values to promote aspects of capabilities (well-being achievement, wellbeing freedom, agency achievement and agency freedom) for girls in Science, Mathematics and Technical subjects. Science, Mathematics and Technical subjects teacher educators' curriculum practices were gender neutral, but in a gendered environment. This was a pedagogical tension that was visible in both case studies. On the other hand, socio-ecological issues, in cases where they were incorporated into the curriculum, were incorporated in a gender blind or gender neutral manner. Social ecological concerns such as climate change were treated as if they were not gendered both in their impact and in their mitigation and adaptation. It emerged that causal mechanisms shaping this situation were of a socio-political nature: there exist cultural differences between students and teacher educators; patriarchal ideology and hegemony; as well as other interfering binaries such as race and class. Other curriculum related constraints, though embedded in the socio-cultural-political nexus, include: rigid and content heavy curriculum, coupled with students who come into the system with inadequate content knowledge; and philosophy informing pedagogy namely scientism, with associated instrumentalist and functionalist tenets. All these led to contradictions between pedagogical practices with those expected by the Education for Sustainable Development framework. The study contributes in-depth insight into science teacher education curriculum development. By locating the study at the nexus of gender and Science, Mathematics and Technical subjects within the Education for Sustainable Development discourse, using the ontological lenses of feminist and capabilities, it was possible to interrogate aspects of quality and relevance of the science teacher education curriculum. The study also provides insight into participatory research and learning processes especially within the context of policy and curriculum development. It provides empirical evidence of mobilising reflexivity amongst both policy makers and policy implementers towards building human agency in policy translation for a curriculum transformation that is critical for responding to contemporary socio-ecological risks. , Microsoft� Word 2010 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2013
Estuarine-dependency and multiple habitat use by dusky kob Argyrosomus Japonicus (Pisces: Sciaenidae)
- Authors: Childs, Amber-Robyn
- Date: 2013
- Subjects: Argyrosomus -- Habitat -- South Africa -- Algoa Bay , Argyrosomus -- Behavior -- South Africa -- Algoa Bay , Argyrosomus -- Migration -- South Africa -- Algoa Bay , Estuarine fishes -- South Africa -- Algoa Bay , Habitat selection -- South Africa -- Algoa Bay , Argyrosomus -- South Africa -- Sundays Estuary (Eastern Cape) , Underwater acoustic telemetry
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5386 , http://hdl.handle.net/10962/d1020241
- Description: Dusky kob Argyrosomus japonicus is a wide-ranging estuarine-dependent Sciaenid and an important fishery species throughout most of its distribution. It is one of South Africa’s most valuable coastal fishery species. High levels of juvenile exploitation in estuaries and ineffective management regulations have led to stock collapse, highlighting the need to better understand the spatial and temporal aspects of estuarine-dependency and multiple habitat use. Habitat connectivity is a critical property of estuarine-associated fishes and it therefore follows that knowledge of this link is fundamental in understanding population dynamics and the nursery role of estuarine and/or marine habitats. While dusky kob occur in both estuaries and nearshore coastal zones, limited information on connectivity among these habitats exists. The aim of this study is to assess the role of estuarine nursery habitats in the life cycle of the dusky kob by examining multiple habitat connectivity and determining the drivers associated with estuarine use. A total of 96 dusky kob (237–1280 mm total length) were tagged with acoustic transmitters in both the estuarine and marine environments of Algoa Bay, Eastern Cape, South Africa between May 2008 and September 2010. Their movements were monitored using a network of automated data-logging acoustic receivers deployed in the Sundays Estuary, seven neighbouring estuarine habitats, two commercial harbours and various sites within Algoa Bay. And more...
- Full Text:
- Date Issued: 2013
- Authors: Childs, Amber-Robyn
- Date: 2013
- Subjects: Argyrosomus -- Habitat -- South Africa -- Algoa Bay , Argyrosomus -- Behavior -- South Africa -- Algoa Bay , Argyrosomus -- Migration -- South Africa -- Algoa Bay , Estuarine fishes -- South Africa -- Algoa Bay , Habitat selection -- South Africa -- Algoa Bay , Argyrosomus -- South Africa -- Sundays Estuary (Eastern Cape) , Underwater acoustic telemetry
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5386 , http://hdl.handle.net/10962/d1020241
- Description: Dusky kob Argyrosomus japonicus is a wide-ranging estuarine-dependent Sciaenid and an important fishery species throughout most of its distribution. It is one of South Africa’s most valuable coastal fishery species. High levels of juvenile exploitation in estuaries and ineffective management regulations have led to stock collapse, highlighting the need to better understand the spatial and temporal aspects of estuarine-dependency and multiple habitat use. Habitat connectivity is a critical property of estuarine-associated fishes and it therefore follows that knowledge of this link is fundamental in understanding population dynamics and the nursery role of estuarine and/or marine habitats. While dusky kob occur in both estuaries and nearshore coastal zones, limited information on connectivity among these habitats exists. The aim of this study is to assess the role of estuarine nursery habitats in the life cycle of the dusky kob by examining multiple habitat connectivity and determining the drivers associated with estuarine use. A total of 96 dusky kob (237–1280 mm total length) were tagged with acoustic transmitters in both the estuarine and marine environments of Algoa Bay, Eastern Cape, South Africa between May 2008 and September 2010. Their movements were monitored using a network of automated data-logging acoustic receivers deployed in the Sundays Estuary, seven neighbouring estuarine habitats, two commercial harbours and various sites within Algoa Bay. And more...
- Full Text:
- Date Issued: 2013
Characterisation of surfaces modified through self-assembled monolayers and click chemistry
- Authors: Coates, Megan Patricia
- Date: 2013
- Subjects: Monomolecular films Gold Adsorption Nanotubes Self-assembly (Chemistry) Self-assembly (Chemistry) Scanning electrochemical microscopy X-ray photoelectron spectroscopy
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4277 , http://hdl.handle.net/10962/d1001684
- Description: Different approaches to surface modification were investigated in this work on gold, glassy carbon, multi-walled carbon nanotube paper and on single-walled carbon nanotubes adsorbed on glassy carbon. These approaches include electrochemical grafting, electropolymerisation, click chemistry, axial ligation, adsorption and self-assembled monolayers. The modified surfaces were characterised using a variety of techniques; predominantly electrochemistry, scanning electrochemical microscopy and X-ray photoelectron spectroscopy. For the formation of self-assembled monolayers on gold, four new manganese(III) phthalocyanines (1a-d), octa-substituted at the peripheral position with pentylthio, decylthio, benzylthio, and phenylthio groups were synthesized and characterised. X-ray photoelectron spectroscopy was used to show the formation of a sulphur-gold bond. A number of approaches using 4-azidoaniline (2a) combined with azide-alkyne click chemistry and electrochemistry were also used to anchor ferrocene and pyridine moieties on to the carbon surfaces, including direct in situ diazotation and grafting, electropolymerisation, and the synthesis of the diazonium salt followed by grafting. Iron phthalocyanine was linked to the pyridine-clicked surfaces through axial ligation, where the strong axial bond formed by the interaction between the central metal and the lone pair of the nitrogen in the pyridine group resulted in stable modified electrodes. The potential of these surfaces for the detection of analytes such as thiocyanate, hydrazine and sulphite are briefly shown as well. This work also describes for the first time the possibility of performing local micro-electrochemical grafting of a gold substrate by 4-azidobenzenediazonium (2b) using scanning electrochemical microscopy in a single and simple one step approach, without complications from adsorption.
- Full Text:
- Date Issued: 2013
- Authors: Coates, Megan Patricia
- Date: 2013
- Subjects: Monomolecular films Gold Adsorption Nanotubes Self-assembly (Chemistry) Self-assembly (Chemistry) Scanning electrochemical microscopy X-ray photoelectron spectroscopy
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4277 , http://hdl.handle.net/10962/d1001684
- Description: Different approaches to surface modification were investigated in this work on gold, glassy carbon, multi-walled carbon nanotube paper and on single-walled carbon nanotubes adsorbed on glassy carbon. These approaches include electrochemical grafting, electropolymerisation, click chemistry, axial ligation, adsorption and self-assembled monolayers. The modified surfaces were characterised using a variety of techniques; predominantly electrochemistry, scanning electrochemical microscopy and X-ray photoelectron spectroscopy. For the formation of self-assembled monolayers on gold, four new manganese(III) phthalocyanines (1a-d), octa-substituted at the peripheral position with pentylthio, decylthio, benzylthio, and phenylthio groups were synthesized and characterised. X-ray photoelectron spectroscopy was used to show the formation of a sulphur-gold bond. A number of approaches using 4-azidoaniline (2a) combined with azide-alkyne click chemistry and electrochemistry were also used to anchor ferrocene and pyridine moieties on to the carbon surfaces, including direct in situ diazotation and grafting, electropolymerisation, and the synthesis of the diazonium salt followed by grafting. Iron phthalocyanine was linked to the pyridine-clicked surfaces through axial ligation, where the strong axial bond formed by the interaction between the central metal and the lone pair of the nitrogen in the pyridine group resulted in stable modified electrodes. The potential of these surfaces for the detection of analytes such as thiocyanate, hydrazine and sulphite are briefly shown as well. This work also describes for the first time the possibility of performing local micro-electrochemical grafting of a gold substrate by 4-azidobenzenediazonium (2b) using scanning electrochemical microscopy in a single and simple one step approach, without complications from adsorption.
- Full Text:
- Date Issued: 2013
Modulation of Plasmodium falciparum chaperones PfHsp70-1 and PfHsp70-x by small molecules
- Authors: Cockburn, Ingrid Louise
- Date: 2013
- Subjects: Plasmodium falciparum Heat shock proteins Molecular chaperones Homeostasis Protein folding Malaria Antimalarials Escherichia coli
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3887 , http://hdl.handle.net/10962/d1001747
- Description: The heat shock proteins of ~ 70 kDa (Hsp70s) are a conserved group of molecular chaperones important in maintaining the protein homeostasis in cells, carrying out functions including refolding of misfolded or unfolded proteins. Hsp70s function in conjunction with a number of other proteins including Hsp40 cochaperones. Central to the regulation Hsp70 activity is the Hsp70 ATPase cycle, involving ATP hydrolysis by Hsp70, and stimulation of this ATP hydrolysis by Hsp40. PfHsp70-1, the major cytosolic Hsp70 in the malaria parasite, Plasmodium falciparum, and PfHsp70-x, a novel malarial Hsp70 recently found to be exported to the host cell cytosol during the erythrocytic stages of the P. falciparum lifecycle, are both thought to play important roles in the malaria parasite’s survival and virulence, and thus represent novel antimalarial targets. Modulation of the function of these proteins by small molecules could thus lead to the development of antimalarials with novel targets and mechanisms. In the present study, malarial Hsp70s (PfHsp70-1 and PfHsp70-x), human Hsp70 (HSPA1A), malarial Hsp40 (PfHsp40) and human Hsp40 (Hsj1a) were recombinantly produced in Escherichia coli. In a characterisation of the chaperone activity of recombinant PfHsp70-x, the protein was found to have a basal ATPase activity (15.7 nmol ATP/min/mg protein) comparable to that previously described for PfHsp70-1, and an aggregation suppression activity significantly higher than that of PfHsp70-1. In vitro assays were used to screen five compounds of interest (lapachol, bromo-β-lapachona and malonganenones A, B and C) belonging to two compound classes (1,4 naphthoquinones and prenylated alkaloids) for modulatory effects on PfHsp70-1, PfHsp70-x and HsHsp70. A wide range of effects by compounds on the chaperone activities of Hsp70s was observed, including differential effects by compounds on different Hsp70s despite high conservation (≥ 70 % sequence identity) between the Hsp70s. The five compounds were shown to interact with all three Hsp70s in in vitro binding studies. Differential modulation by compounds was observed between the Hsj1a-stimulated ATPase activities of different Hsp70s, suggestive of not only a high degree of specificity of compounds to chaperone systems, but also distinct interactions between different Hsp70s and Hjs1a. The effects of compounds on the survival of P. falciparum parasites as well as mammalian cells was assessed. Bromo-β-lapachona was found to have broad effects across all systems, modulating the chaperone activities of all three Hsp70s, and showing significant toxicity toward both P. falciparum parasites and mammalian cells in culture. Malonganenone A was found to modulate only the malarial Hsp70s, not human Hsp70, showing significant toxicity toward malarial parasites (IC₅₀ ~ 0.8 μM), and comparatively low toxicity toward mammalian cells, representing therefore a novel starting point for a new class of antimalarials potentially targeting a new antimalarial drug target, Hsp70.
- Full Text:
- Date Issued: 2013
- Authors: Cockburn, Ingrid Louise
- Date: 2013
- Subjects: Plasmodium falciparum Heat shock proteins Molecular chaperones Homeostasis Protein folding Malaria Antimalarials Escherichia coli
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3887 , http://hdl.handle.net/10962/d1001747
- Description: The heat shock proteins of ~ 70 kDa (Hsp70s) are a conserved group of molecular chaperones important in maintaining the protein homeostasis in cells, carrying out functions including refolding of misfolded or unfolded proteins. Hsp70s function in conjunction with a number of other proteins including Hsp40 cochaperones. Central to the regulation Hsp70 activity is the Hsp70 ATPase cycle, involving ATP hydrolysis by Hsp70, and stimulation of this ATP hydrolysis by Hsp40. PfHsp70-1, the major cytosolic Hsp70 in the malaria parasite, Plasmodium falciparum, and PfHsp70-x, a novel malarial Hsp70 recently found to be exported to the host cell cytosol during the erythrocytic stages of the P. falciparum lifecycle, are both thought to play important roles in the malaria parasite’s survival and virulence, and thus represent novel antimalarial targets. Modulation of the function of these proteins by small molecules could thus lead to the development of antimalarials with novel targets and mechanisms. In the present study, malarial Hsp70s (PfHsp70-1 and PfHsp70-x), human Hsp70 (HSPA1A), malarial Hsp40 (PfHsp40) and human Hsp40 (Hsj1a) were recombinantly produced in Escherichia coli. In a characterisation of the chaperone activity of recombinant PfHsp70-x, the protein was found to have a basal ATPase activity (15.7 nmol ATP/min/mg protein) comparable to that previously described for PfHsp70-1, and an aggregation suppression activity significantly higher than that of PfHsp70-1. In vitro assays were used to screen five compounds of interest (lapachol, bromo-β-lapachona and malonganenones A, B and C) belonging to two compound classes (1,4 naphthoquinones and prenylated alkaloids) for modulatory effects on PfHsp70-1, PfHsp70-x and HsHsp70. A wide range of effects by compounds on the chaperone activities of Hsp70s was observed, including differential effects by compounds on different Hsp70s despite high conservation (≥ 70 % sequence identity) between the Hsp70s. The five compounds were shown to interact with all three Hsp70s in in vitro binding studies. Differential modulation by compounds was observed between the Hsj1a-stimulated ATPase activities of different Hsp70s, suggestive of not only a high degree of specificity of compounds to chaperone systems, but also distinct interactions between different Hsp70s and Hjs1a. The effects of compounds on the survival of P. falciparum parasites as well as mammalian cells was assessed. Bromo-β-lapachona was found to have broad effects across all systems, modulating the chaperone activities of all three Hsp70s, and showing significant toxicity toward both P. falciparum parasites and mammalian cells in culture. Malonganenone A was found to modulate only the malarial Hsp70s, not human Hsp70, showing significant toxicity toward malarial parasites (IC₅₀ ~ 0.8 μM), and comparatively low toxicity toward mammalian cells, representing therefore a novel starting point for a new class of antimalarials potentially targeting a new antimalarial drug target, Hsp70.
- Full Text:
- Date Issued: 2013
The redemptive life story of Glenda Watson-Kahlenberg: a psychobiography
- Authors: Connelly, Ruth Ellen
- Date: 2013
- Subjects: Watson-Kahlenberg, Glenda -- Psychology , Redemption , Meaning (Psychology) , Well-being , Forgiveness
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9956 , http://hdl.handle.net/10948/d1019690
- Description: This psychobiography is focused on the life of Glenda Watson-Kahlenberg, whose life history epitomises the redemptive theme of triumph over tragedy. A phenomenological approach to the study allowed the researcher to observe the participant‟s lived experience through the theoretical lens of Frankl‟s conceptualization of a meaningful and full existence. A holistic perspective of factors contributing to redemption was accommodated by the Biopsychosocial-spiritual Model. The aim of this longitudinal revelatory study was to illuminate the process of redemption in a life, which leads to restoration and wholeness. This study breaks with traditional psychobiography – in that a life in progress has been selected; and personality development is not the key focus. This psychobiographical undertaking was anchored in qualitative research in the form of a single case study. Four types of triangulation were utilized, namely: data, investigators, theory and methodological triangulation. In addition, Alexander‟s identifiers of saliency, Miles and Huberman‟s data-management guidelines, Schultz‟s prototypical scenes, and Guba‟s criteria for trustworthiness, guided the methodology to ensure reliable data extraction and interpretation. The present researcher was in search of a deeper understanding of the enabling factors facilitating a restorative process in a life that was challenged by setbacks. Given the increasing pressures facing individuals in this modern era, the redemptive theme holds particular relevance, and was graphically demonstrated in the life of the participant who experienced trauma, widowhood, divorce, single parenthood, and a spate of medical and psychological setbacks. The findings suggest that the mental health clinician‟s utilisation of Frankl‟s conceptualisation of meaning in the most challenging circumstances, proffers itself as an all-purpose life-tool which enables individuals to overcome their challenges. The study demonstrated that gaining meaning in life is inextricably tied to an implicit legacy-oriented worldview. Of significance, is the role of forgiveness which emerged as the central redemptive catalyst. In this study, the resolution of past hurts through forgiveness, and the search for meaning, merge, forming an arterial theme in the life story of the participant. The dual impact of these factors not only reversed contaminated life-scripts, it also birthed a new calling in life which set the participant on a generative life course. The findings related to a redemptive life not only confirms existing theory, but also adds perspectives not previously considered. In addition, the findings related to the role of forgiveness has positive implications for the individual‟s physical and psychological wellbeing. Greater intentionality on the part of therapists to thread forgiveness into their practice, remains invitational in the light of the eugraphic impact demonstrated in this study.
- Full Text:
- Date Issued: 2013
- Authors: Connelly, Ruth Ellen
- Date: 2013
- Subjects: Watson-Kahlenberg, Glenda -- Psychology , Redemption , Meaning (Psychology) , Well-being , Forgiveness
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9956 , http://hdl.handle.net/10948/d1019690
- Description: This psychobiography is focused on the life of Glenda Watson-Kahlenberg, whose life history epitomises the redemptive theme of triumph over tragedy. A phenomenological approach to the study allowed the researcher to observe the participant‟s lived experience through the theoretical lens of Frankl‟s conceptualization of a meaningful and full existence. A holistic perspective of factors contributing to redemption was accommodated by the Biopsychosocial-spiritual Model. The aim of this longitudinal revelatory study was to illuminate the process of redemption in a life, which leads to restoration and wholeness. This study breaks with traditional psychobiography – in that a life in progress has been selected; and personality development is not the key focus. This psychobiographical undertaking was anchored in qualitative research in the form of a single case study. Four types of triangulation were utilized, namely: data, investigators, theory and methodological triangulation. In addition, Alexander‟s identifiers of saliency, Miles and Huberman‟s data-management guidelines, Schultz‟s prototypical scenes, and Guba‟s criteria for trustworthiness, guided the methodology to ensure reliable data extraction and interpretation. The present researcher was in search of a deeper understanding of the enabling factors facilitating a restorative process in a life that was challenged by setbacks. Given the increasing pressures facing individuals in this modern era, the redemptive theme holds particular relevance, and was graphically demonstrated in the life of the participant who experienced trauma, widowhood, divorce, single parenthood, and a spate of medical and psychological setbacks. The findings suggest that the mental health clinician‟s utilisation of Frankl‟s conceptualisation of meaning in the most challenging circumstances, proffers itself as an all-purpose life-tool which enables individuals to overcome their challenges. The study demonstrated that gaining meaning in life is inextricably tied to an implicit legacy-oriented worldview. Of significance, is the role of forgiveness which emerged as the central redemptive catalyst. In this study, the resolution of past hurts through forgiveness, and the search for meaning, merge, forming an arterial theme in the life story of the participant. The dual impact of these factors not only reversed contaminated life-scripts, it also birthed a new calling in life which set the participant on a generative life course. The findings related to a redemptive life not only confirms existing theory, but also adds perspectives not previously considered. In addition, the findings related to the role of forgiveness has positive implications for the individual‟s physical and psychological wellbeing. Greater intentionality on the part of therapists to thread forgiveness into their practice, remains invitational in the light of the eugraphic impact demonstrated in this study.
- Full Text:
- Date Issued: 2013
The effect of using a computer-based exploration tool on children's career development learning
- Authors: Crause, Ewald
- Date: 2013
- Subjects: Vocational guidance -- Computer network resources , Career development -- Computer network resources
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9947 , http://hdl.handle.net/10948/d1015020
- Description: Historically the process of career development was thought of as occurring in adolescence and adulthood; however, the renewed emphasis on lifelong career development has led to a greater focus on the career developmental stage of childhood. The present research focused on the development and trialling of a research-based computerised career exploration tool, Growing-up: Children Building Careers™ (GCBC™) that can be used for early intervention in children‘s career development. The integration of developmental considerations within a career developmental context is of paramount importance, considering that child and career developmental theories share certain basic foundational principles such as the dual recognition of identifiable life stages and the resolution or accomplishment of associated tasks. The focus of the research is to provide access to a research-based tool that can assist learners with developing age appropriate career developmental skills. As the overview of education policy and existing programs will show, there are challenges in providing access to and improving the nature, level, and quality of career development services. Gaps in access to career development learning are particularly evident at the elementary education level. Furthermore it is clear that learners need to be at the centre of a radical rethink of careers services within a lifelong learning framework in order to ensure access to navigational tools throughout a lifetime of work and study transitions. Digital environments, such as the GCBC™, are tools that broaden and extend learning possibilities for children and appropriately designed digital environments can provide a vehicle that can take children further than they might travel unassisted. The research is divided into five phases and includes eight to ten year old children as participants. Phase one focused on the program design and pilot study (ensuring content validity and age-appropriate language use), while phases two to five focused on the fieldwork (i.e., pre –test, program exposure, post-test, and focus group discussions). The researcher made use of a mixed research design that combines both quantitative and qualitative research methods. The total sample consisted of 146 children between the ages of eight to ten years old. The control group had 72 children and the experimental group 74 children with a mean age of 8.74 years (SD = 0.63) for the total sample. The quantitative data collection entailed a pre-and post-test design with learners‘ career development measured with the Childhood Career Development Scale (CCDS) and their career awareness with the Revised Career Awareness Survey (RCAS). Qualitative data was collected in the form of two focus group discussions, which included a small sample of children from the experimental group, as well as insights gained from educators following the GCBC™ fieldwork. The quantitative statistical analysis included descriptive and inferential statistics which allowed the researcher to not only describe the research findings, but to confirm the effectiveness of the GCBC™ as an intentional career development learning program. Furthermore, the responses of the children and educators who participated in or witnessed the facilitation of the GCBC™ provided support for the GCBC™ as a meaningful career learning experience which can be successfully implemented in educational settings.
- Full Text:
- Date Issued: 2013
- Authors: Crause, Ewald
- Date: 2013
- Subjects: Vocational guidance -- Computer network resources , Career development -- Computer network resources
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9947 , http://hdl.handle.net/10948/d1015020
- Description: Historically the process of career development was thought of as occurring in adolescence and adulthood; however, the renewed emphasis on lifelong career development has led to a greater focus on the career developmental stage of childhood. The present research focused on the development and trialling of a research-based computerised career exploration tool, Growing-up: Children Building Careers™ (GCBC™) that can be used for early intervention in children‘s career development. The integration of developmental considerations within a career developmental context is of paramount importance, considering that child and career developmental theories share certain basic foundational principles such as the dual recognition of identifiable life stages and the resolution or accomplishment of associated tasks. The focus of the research is to provide access to a research-based tool that can assist learners with developing age appropriate career developmental skills. As the overview of education policy and existing programs will show, there are challenges in providing access to and improving the nature, level, and quality of career development services. Gaps in access to career development learning are particularly evident at the elementary education level. Furthermore it is clear that learners need to be at the centre of a radical rethink of careers services within a lifelong learning framework in order to ensure access to navigational tools throughout a lifetime of work and study transitions. Digital environments, such as the GCBC™, are tools that broaden and extend learning possibilities for children and appropriately designed digital environments can provide a vehicle that can take children further than they might travel unassisted. The research is divided into five phases and includes eight to ten year old children as participants. Phase one focused on the program design and pilot study (ensuring content validity and age-appropriate language use), while phases two to five focused on the fieldwork (i.e., pre –test, program exposure, post-test, and focus group discussions). The researcher made use of a mixed research design that combines both quantitative and qualitative research methods. The total sample consisted of 146 children between the ages of eight to ten years old. The control group had 72 children and the experimental group 74 children with a mean age of 8.74 years (SD = 0.63) for the total sample. The quantitative data collection entailed a pre-and post-test design with learners‘ career development measured with the Childhood Career Development Scale (CCDS) and their career awareness with the Revised Career Awareness Survey (RCAS). Qualitative data was collected in the form of two focus group discussions, which included a small sample of children from the experimental group, as well as insights gained from educators following the GCBC™ fieldwork. The quantitative statistical analysis included descriptive and inferential statistics which allowed the researcher to not only describe the research findings, but to confirm the effectiveness of the GCBC™ as an intentional career development learning program. Furthermore, the responses of the children and educators who participated in or witnessed the facilitation of the GCBC™ provided support for the GCBC™ as a meaningful career learning experience which can be successfully implemented in educational settings.
- Full Text:
- Date Issued: 2013
An intervention study to develop a male circumcision health promotion programme at Libode Rural Communities in the Eastern Cape Province, South Africa
- Authors: Douglas, Mbuyiselo
- Date: 2013
- Subjects: Circumcision Health promotion Penis surgery South Africa -- Libode
- Language: English
- Type: Thesis , Doctoral , Ph D
- Identifier: vital:18476 , http://hdl.handle.net/11260/d1007187
- Description: The purpose of this study was to develop an intervention health promotion programme to prevent circumcision related health problem such as sepsis, botched circumcision, dehydration, penile amputation and reduce the number of deaths. The intervention programme was aimed at promoting a safe male circumcision practice affecting boys aged 12-18 years at Libode rural communities in Eastern Cape Province of South Africa. This was achieved through a mixed method design using both quantitative and qualitative approaches utilizing sequential transformative strategy to allow for the convergence of multiple perspectives of the traditional male circumcision in Libode. The study was conducted in 22 schools of the rural communities of Libode because most of the participants are still attending school. Frequencies and percentages were used to analyse the quantitative data, utilizing the Statistical Package for Social Sciences (SPSS). A total of 1036 participants, AmaXhosa circumcised young men (abafana) and uncircumcised boys (amakhwenkwe) participated in the cross-sectional survey, quantitative phase of the study. Qualitative phase of this study was composed of 7 focus group discussions with a total of 84 circumcised and uncircumcised male participants and 10 key informants’ interviews were conducted. In analysis qualitative data, the researcher found the most descriptive words for each topic and turned them into categories or sub-themes. Topics that related to each other were then grouped in order to reduce the number of categories and to create themes. The similar categories of data were grouped and analysed using Tesch’s method. Findings indicated that traditional circumcision is performed during winter and summer holidays in order to cater for the boys who are attending schools. The circumcision age at Libode ranges from 12 and 18 years of age which is against the Health Standards in Traditional Circumcision Act (Act No. 6 of 2001). Although the participants were aware of the complications of male circumcision in Libode, there was a high preference for traditional circumcision (92.3% of participants) to hospital circumcision. The participants were of the view that the benefits of traditional circumcision outweigh the complications or challenges related to traditional circumcision. They wanted to be socially accepted and wanted to learn about manhood values in the traditional circumcision which are values that cannot be achieved through the hospital based circumcision. As male circumcision initiation is seasonal and the intervention programme needed to be approved by different stakeholders, the testing of intervention programme could not happen before the programme was approved by all the stakeholders.
- Full Text:
- Date Issued: 2013
- Authors: Douglas, Mbuyiselo
- Date: 2013
- Subjects: Circumcision Health promotion Penis surgery South Africa -- Libode
- Language: English
- Type: Thesis , Doctoral , Ph D
- Identifier: vital:18476 , http://hdl.handle.net/11260/d1007187
- Description: The purpose of this study was to develop an intervention health promotion programme to prevent circumcision related health problem such as sepsis, botched circumcision, dehydration, penile amputation and reduce the number of deaths. The intervention programme was aimed at promoting a safe male circumcision practice affecting boys aged 12-18 years at Libode rural communities in Eastern Cape Province of South Africa. This was achieved through a mixed method design using both quantitative and qualitative approaches utilizing sequential transformative strategy to allow for the convergence of multiple perspectives of the traditional male circumcision in Libode. The study was conducted in 22 schools of the rural communities of Libode because most of the participants are still attending school. Frequencies and percentages were used to analyse the quantitative data, utilizing the Statistical Package for Social Sciences (SPSS). A total of 1036 participants, AmaXhosa circumcised young men (abafana) and uncircumcised boys (amakhwenkwe) participated in the cross-sectional survey, quantitative phase of the study. Qualitative phase of this study was composed of 7 focus group discussions with a total of 84 circumcised and uncircumcised male participants and 10 key informants’ interviews were conducted. In analysis qualitative data, the researcher found the most descriptive words for each topic and turned them into categories or sub-themes. Topics that related to each other were then grouped in order to reduce the number of categories and to create themes. The similar categories of data were grouped and analysed using Tesch’s method. Findings indicated that traditional circumcision is performed during winter and summer holidays in order to cater for the boys who are attending schools. The circumcision age at Libode ranges from 12 and 18 years of age which is against the Health Standards in Traditional Circumcision Act (Act No. 6 of 2001). Although the participants were aware of the complications of male circumcision in Libode, there was a high preference for traditional circumcision (92.3% of participants) to hospital circumcision. The participants were of the view that the benefits of traditional circumcision outweigh the complications or challenges related to traditional circumcision. They wanted to be socially accepted and wanted to learn about manhood values in the traditional circumcision which are values that cannot be achieved through the hospital based circumcision. As male circumcision initiation is seasonal and the intervention programme needed to be approved by different stakeholders, the testing of intervention programme could not happen before the programme was approved by all the stakeholders.
- Full Text:
- Date Issued: 2013
A critical evaluation of the quality of social development interventions with specific reference to social assistance
- Authors: Draai, Enaleen Enchella
- Date: 2013
- Subjects: South African Social Security Agency , Social security -- South Africa , Social service -- South Africa , Public welfare -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8277 , http://hdl.handle.net/10948/d1016210
- Description: Citizens interact with government departments and agencies for public services and goods which lead to a service encounter between a public official and client. Various initiatives and policies have been developed and are being implemented in the public service to adopt a client-centred approach to service delivery. The White Paper on the Transformation of the Public Service of 1997, identifies the eight Batho Pele principles which sets the framework for implementation of service quality within the South African public service. Government departments are expected to implement measurable service standards to determine levels of service quality to be met that will define levels of client satisfaction with service provision. The assessment of the service encounter by the client informs perceived levels of satisfaction held. This assessment of service quality by clients is therefore value-laden, subjective and periodic. The study focused on the implementation of measures to create and maintain a clientcentric public service in South Africa that would lead to levels of client satisfaction with service quality. The study assessed the implementation and maintenance of service quality at the Social Security Agency of South African the Eastern Cape. The SASSA is responsible for the disbursement of various social grants to facilitate a quality of life as enshrined by the Bill of Rights in the Constitution of South Africa, 1996. The focus of the study was linked to beneficiary maintenance and customer care at SASSA. The study included three different sample groups namely the clients, officials engaged in grant administration and different levels of management which included senior management, district and area managers. The findings revealed that the SASSA has implemented numerous new programmes aimed at a client-centric approach to service delivery. Analysis of the findings revealed expectation as well performance gaps which indicated that officials do not comply with the protocols of the agency and the Batho Pele principles. The promised service standards specified within the SASSA Customer Care Charter is not being realised which fundamentally indicate inefficient and ineffective monitoring of compliance with norms and standards. A conclusion drawn therefore is that the human dignity of clients in search of socials assistance who chiefly constitute vulnerable groups is being infringed. Three key service quality dimensions are identified that needs intervention for improved service quality. These dimensions include tangibility, assurance and responsiveness of functional components identified in respect of nine themes.
- Full Text:
- Date Issued: 2013
- Authors: Draai, Enaleen Enchella
- Date: 2013
- Subjects: South African Social Security Agency , Social security -- South Africa , Social service -- South Africa , Public welfare -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8277 , http://hdl.handle.net/10948/d1016210
- Description: Citizens interact with government departments and agencies for public services and goods which lead to a service encounter between a public official and client. Various initiatives and policies have been developed and are being implemented in the public service to adopt a client-centred approach to service delivery. The White Paper on the Transformation of the Public Service of 1997, identifies the eight Batho Pele principles which sets the framework for implementation of service quality within the South African public service. Government departments are expected to implement measurable service standards to determine levels of service quality to be met that will define levels of client satisfaction with service provision. The assessment of the service encounter by the client informs perceived levels of satisfaction held. This assessment of service quality by clients is therefore value-laden, subjective and periodic. The study focused on the implementation of measures to create and maintain a clientcentric public service in South Africa that would lead to levels of client satisfaction with service quality. The study assessed the implementation and maintenance of service quality at the Social Security Agency of South African the Eastern Cape. The SASSA is responsible for the disbursement of various social grants to facilitate a quality of life as enshrined by the Bill of Rights in the Constitution of South Africa, 1996. The focus of the study was linked to beneficiary maintenance and customer care at SASSA. The study included three different sample groups namely the clients, officials engaged in grant administration and different levels of management which included senior management, district and area managers. The findings revealed that the SASSA has implemented numerous new programmes aimed at a client-centric approach to service delivery. Analysis of the findings revealed expectation as well performance gaps which indicated that officials do not comply with the protocols of the agency and the Batho Pele principles. The promised service standards specified within the SASSA Customer Care Charter is not being realised which fundamentally indicate inefficient and ineffective monitoring of compliance with norms and standards. A conclusion drawn therefore is that the human dignity of clients in search of socials assistance who chiefly constitute vulnerable groups is being infringed. Three key service quality dimensions are identified that needs intervention for improved service quality. These dimensions include tangibility, assurance and responsiveness of functional components identified in respect of nine themes.
- Full Text:
- Date Issued: 2013
Standards to facilitate optimal experiences of short-term study abroad nursing students at a higher education institution
- Authors: Du Rand, Sussara Maria
- Date: 2013
- Subjects: Nursing -- Study and teaching -- United States , Transcultural nursing , Nursing -- Cross-cultural studies , Foreign study , Nursing students
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10066 , http://hdl.handle.net/10948/d1020659
- Description: Advances in technology have made globalization and internationalization a reality in the world. National borders are becoming more permeable and migration of goods, services, and health care workers takes place more readily. Higher Education Institutions (HEIs) have become competitors and vendors in the global knowledge economy and are expected to develop job seekers that are responsible and engaged global citizens and employees. Offering study abroad programmes is one of the ways that HEIs achieve this goal. It is estimated that in 2010, 4.7 million people studied abroad (OECD, 2012:360), and it is anticipated that this number will grow to 15 million by the year 2025 (Altbach & Knight, 2006:9). South Africa is emerging as a regional hub for study and research in sub-Saharan Africa (UNESCO: 2012b). Many organizations that train nurses are internationalizing their curriculum which effectively means that Schools of Nursing are seeking placement for students to study, gain insight into other cultures and practices, and to gain clinical experience in other countries. Students, the customers of the Higher Education Institutions, often pay large sums of money to undertake these study abroad programmes and therefore expect good quality learning experiences in return. The aim of this qualitative, contextual, exploratory, and descriptive study was to explore and describe the expectations and experiences of international nursing students and faculty members at a Higher Educational Institution in South Africa in order to develop standards that will enable HEIs to optimize the experiences of short-term study abroad nursing students. An in-depth contextual investigation was conducted on globalization and internationalization, as well as the higher education and health systems of three countries to understand the context of the study abroad programmes. Qualitative data was gathered from students and faculty members using focus groups and individual interviews to establish their expectations and experiences of the programme. Thematic synthesis was carried out on the contextual data and the qualitative data. Thereafter, thematic synthesis analysis was conducted using both sets of results to develop standards that can be used to optimize the experience of short-term study abroad nursing students at a HEI. A total of 35 standards were developed around the following main themes: the objectives of study abroad programmes should be stated clearly before arrival and include the expectations of the global, national, and local communities, the higher education institution and the staff and students; study abroad programmes should be managed in an ethical manner and in an enabling environment, as part of their strategic goals and plans of a HEI; students should be exposed to a variety of experiences and differences between the sending and hosting countries during their study abroad programmes; Standards to Facilitate Optimal Experiences of Short-term Study Abroad Nursing Students at a HEI; study abroad programmes should be evaluated at different intervals and levels to ensure quality of the programmes and to ensure that the objectives/outcomes are met. A limitation of the study was the sampling of the clinical mentors which did not include representatives from the overseas universities. It is recommended that the standards that were developed in this study be introduced and tested in HEIs and that more research be conducted on different levels and groups with regard to study abroad programmes in future.
- Full Text:
- Date Issued: 2013
- Authors: Du Rand, Sussara Maria
- Date: 2013
- Subjects: Nursing -- Study and teaching -- United States , Transcultural nursing , Nursing -- Cross-cultural studies , Foreign study , Nursing students
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10066 , http://hdl.handle.net/10948/d1020659
- Description: Advances in technology have made globalization and internationalization a reality in the world. National borders are becoming more permeable and migration of goods, services, and health care workers takes place more readily. Higher Education Institutions (HEIs) have become competitors and vendors in the global knowledge economy and are expected to develop job seekers that are responsible and engaged global citizens and employees. Offering study abroad programmes is one of the ways that HEIs achieve this goal. It is estimated that in 2010, 4.7 million people studied abroad (OECD, 2012:360), and it is anticipated that this number will grow to 15 million by the year 2025 (Altbach & Knight, 2006:9). South Africa is emerging as a regional hub for study and research in sub-Saharan Africa (UNESCO: 2012b). Many organizations that train nurses are internationalizing their curriculum which effectively means that Schools of Nursing are seeking placement for students to study, gain insight into other cultures and practices, and to gain clinical experience in other countries. Students, the customers of the Higher Education Institutions, often pay large sums of money to undertake these study abroad programmes and therefore expect good quality learning experiences in return. The aim of this qualitative, contextual, exploratory, and descriptive study was to explore and describe the expectations and experiences of international nursing students and faculty members at a Higher Educational Institution in South Africa in order to develop standards that will enable HEIs to optimize the experiences of short-term study abroad nursing students. An in-depth contextual investigation was conducted on globalization and internationalization, as well as the higher education and health systems of three countries to understand the context of the study abroad programmes. Qualitative data was gathered from students and faculty members using focus groups and individual interviews to establish their expectations and experiences of the programme. Thematic synthesis was carried out on the contextual data and the qualitative data. Thereafter, thematic synthesis analysis was conducted using both sets of results to develop standards that can be used to optimize the experience of short-term study abroad nursing students at a HEI. A total of 35 standards were developed around the following main themes: the objectives of study abroad programmes should be stated clearly before arrival and include the expectations of the global, national, and local communities, the higher education institution and the staff and students; study abroad programmes should be managed in an ethical manner and in an enabling environment, as part of their strategic goals and plans of a HEI; students should be exposed to a variety of experiences and differences between the sending and hosting countries during their study abroad programmes; Standards to Facilitate Optimal Experiences of Short-term Study Abroad Nursing Students at a HEI; study abroad programmes should be evaluated at different intervals and levels to ensure quality of the programmes and to ensure that the objectives/outcomes are met. A limitation of the study was the sampling of the clinical mentors which did not include representatives from the overseas universities. It is recommended that the standards that were developed in this study be introduced and tested in HEIs and that more research be conducted on different levels and groups with regard to study abroad programmes in future.
- Full Text:
- Date Issued: 2013
Perceptions on ante-mortem welfare, quantitation of pain and pregnancy biomarkers, muscular fibre architecture and quality of Dohne Merino offal
- Authors: Fayemi, Peter Olutope
- Date: 2013
- Subjects: Merino sheep , Slaughtering and slaughter-houses -- By-products , Biochemical markers , Meat -- Quality , Consumers' preferences , Cooking (Variety meats) , Livestock -- Transportation
- Language: English
- Type: Thesis , Doctoral , PhD (Animal Science)
- Identifier: vital:11824 , http://hdl.handle.net/10353/d1007573 , Merino sheep , Slaughtering and slaughter-houses -- By-products , Biochemical markers , Meat -- Quality , Consumers' preferences , Cooking (Variety meats) , Livestock -- Transportation
- Description: Sheep farming is practiced extensively in South Africa for its significant contributions to the livestock, wool and meat industries. The sheep farming sector in the country has approximately 13,800 farmers with commercial and communal sheep farmers making up 58 percent and 42 percent of the entire work force (Directorate of Agricultural Information Services, 2008). An estimate of 28.8 million sheep and flock size ranging between ≤ 50 and ≥ 1800 exist in various South African provinces. Although the national herd size is unevenly distributed provincially most of the herds are found in the Eastern Cape (30 percent) followed by the Northern Cape (25 percent), Free State (20 percent) and the Western Cape (11 percent) respectively (Agriculture, Forestry and Fisheries, 2011). Over twenty indigenous and locally developed sheep breeds are managed where about 69 percent of the land area is available for their grazing nation-wide (Campher et al., 1998; Palmer and Ainslie, 2006). Common among the indigenous breeds are the Afrikaner, Blackhead Persian, Blackhead Speckled Persian, Blinkhaar Ronderib, Damara, Karakul, Namaqua Afrikaner, Pedi, Redhead Persian, Redhead Speckled, Swazi and Zulu. The locally developed breeds include Dorper, Van Rooy and Merinos. The local breeds developed from Merinos consist of the Afrino, Dormer, Dohne Merino and South African mutton Merino (Hammond, 2000; Pranisha, 2004; Hinton, 2006; Sorma et al., 2012). All these sheep breeds are best suited for providing by-products such as wool, meat, hide, milk or a combination of products (Dave and Meadowcroft, 1996; Jensen, 2009). The indigenous and locally developed sheep were bred to meet the growing demand for its by-products (Peters et al., 2010). Expectedly, sheep farmers therefore, make use of the products from these sheep as a means of livelihood and sustenance of a viable local society (Cloete and Olivier, 2010).
- Full Text:
- Date Issued: 2013
- Authors: Fayemi, Peter Olutope
- Date: 2013
- Subjects: Merino sheep , Slaughtering and slaughter-houses -- By-products , Biochemical markers , Meat -- Quality , Consumers' preferences , Cooking (Variety meats) , Livestock -- Transportation
- Language: English
- Type: Thesis , Doctoral , PhD (Animal Science)
- Identifier: vital:11824 , http://hdl.handle.net/10353/d1007573 , Merino sheep , Slaughtering and slaughter-houses -- By-products , Biochemical markers , Meat -- Quality , Consumers' preferences , Cooking (Variety meats) , Livestock -- Transportation
- Description: Sheep farming is practiced extensively in South Africa for its significant contributions to the livestock, wool and meat industries. The sheep farming sector in the country has approximately 13,800 farmers with commercial and communal sheep farmers making up 58 percent and 42 percent of the entire work force (Directorate of Agricultural Information Services, 2008). An estimate of 28.8 million sheep and flock size ranging between ≤ 50 and ≥ 1800 exist in various South African provinces. Although the national herd size is unevenly distributed provincially most of the herds are found in the Eastern Cape (30 percent) followed by the Northern Cape (25 percent), Free State (20 percent) and the Western Cape (11 percent) respectively (Agriculture, Forestry and Fisheries, 2011). Over twenty indigenous and locally developed sheep breeds are managed where about 69 percent of the land area is available for their grazing nation-wide (Campher et al., 1998; Palmer and Ainslie, 2006). Common among the indigenous breeds are the Afrikaner, Blackhead Persian, Blackhead Speckled Persian, Blinkhaar Ronderib, Damara, Karakul, Namaqua Afrikaner, Pedi, Redhead Persian, Redhead Speckled, Swazi and Zulu. The locally developed breeds include Dorper, Van Rooy and Merinos. The local breeds developed from Merinos consist of the Afrino, Dormer, Dohne Merino and South African mutton Merino (Hammond, 2000; Pranisha, 2004; Hinton, 2006; Sorma et al., 2012). All these sheep breeds are best suited for providing by-products such as wool, meat, hide, milk or a combination of products (Dave and Meadowcroft, 1996; Jensen, 2009). The indigenous and locally developed sheep were bred to meet the growing demand for its by-products (Peters et al., 2010). Expectedly, sheep farmers therefore, make use of the products from these sheep as a means of livelihood and sustenance of a viable local society (Cloete and Olivier, 2010).
- Full Text:
- Date Issued: 2013
Single-end reflectometric measurements of polarization-mode dispersion in single-mode optical fibres
- Authors: Fosuhene, Samuel Kofi
- Date: 2013
- Subjects: Fiber optics , Polarization (Light) , Optical measurements
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/6280 , vital:21069
- Description: In this thesis two novel single-end methods are applied to measure and characterize polarization mode dispersion in single mode optical fibres. Polarization mode dispersion (PMD) is an important factor negatively affecting the successful implementation of high speed long haul optical fibre networks operating at bit rates of 10Gb/s and above. PMD measurements are thus important for quality control during manufacturing and cabling processes. It is also useful for network operators planning to upgrade bitrates in existing networks to 10Gb/s and beyond. In an optical fibre link, sections with particularly high PMD may act to increase the entire PMD of the link. Identifying and replacing such sections can greatly reduce the PMD of the link. PMD measurements can be forward or single-end. In forward measurements, both ends of the fibre are used for input and detection. In single-end configuration, only one end of the fibre is used. For this reason, single-end measurements are more practical for the field where fibre ends are situated several kilometres apart. Single-end techniques can be implemented with a continuous wave for non-local PMD measurements (by Fresnel reflection). If a pulsed wave is used, local measurements can be achieved (by total power due to Rayleigh scattering). Two single-end schemes, one based on Fresnel reflection and the other due to Rayleigh scattering have been applied to measure non-local and local PMD of standard single mode optical fibres. For the non-local PMD measurements, the general interferometric technique (GINTY) was modified to operate in a round-trip configuration. In this configuration, the fibre was treated as a concatenation of two identical fibre segments. Three different sets of fibres were investigated, each set representing a particular mode coupling regime. For polarization maintaining fibres, (PMFs), with no mode coupling, a factor of two was found between forward and single-end measurements. For long single mode fibres in the long length regime, the factor was 1.4. For a combination of PMF and single mode fibres, a factor of 1.6 was obtained. The method which is accurate, repeatable, low cost and robust is very suitable for field applications. The second method is the polarization optical time domain reflectometric (P-OTDR) technique. This technique performs local birefringence measurements by measuring the evolution of the states of polarization (SOP). The birefringence information from such measurements was extracted and analysed to characterise four different fibres. Beat lengths and correlation lengths extracted from the P-OTDR were used to calculate the differential group delay (DGD) of the fibres. Next an expression for the root-mean-square differential group delay was derived and applied to the birefringence measurements to calculate the DGDs at a single wavelength. This method which operates at a single wavelength has a huge advantage. Firstly it is able to measure completely all the fibre characteristic parameters. Secondly it can measure mean DGD, root mean square DGD and instantaneous DGD. A plot of instantaneous DGD vs. length enables one to identify and eliminate sections with particularly high DGD. Finally since the P-OTDR system operates with a single wavelength, real time monitoring of PMD is possible via multiplexing. The results obtained are repeatable, accurate and are in good agreement with the standard Jones Matrix Eigenanalysis (JME) technique.
- Full Text:
- Date Issued: 2013
Single-end reflectometric measurements of polarization-mode dispersion in single-mode optical fibres
- Authors: Fosuhene, Samuel Kofi
- Date: 2013
- Subjects: Fiber optics , Polarization (Light) , Optical measurements
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/6280 , vital:21069
- Description: In this thesis two novel single-end methods are applied to measure and characterize polarization mode dispersion in single mode optical fibres. Polarization mode dispersion (PMD) is an important factor negatively affecting the successful implementation of high speed long haul optical fibre networks operating at bit rates of 10Gb/s and above. PMD measurements are thus important for quality control during manufacturing and cabling processes. It is also useful for network operators planning to upgrade bitrates in existing networks to 10Gb/s and beyond. In an optical fibre link, sections with particularly high PMD may act to increase the entire PMD of the link. Identifying and replacing such sections can greatly reduce the PMD of the link. PMD measurements can be forward or single-end. In forward measurements, both ends of the fibre are used for input and detection. In single-end configuration, only one end of the fibre is used. For this reason, single-end measurements are more practical for the field where fibre ends are situated several kilometres apart. Single-end techniques can be implemented with a continuous wave for non-local PMD measurements (by Fresnel reflection). If a pulsed wave is used, local measurements can be achieved (by total power due to Rayleigh scattering). Two single-end schemes, one based on Fresnel reflection and the other due to Rayleigh scattering have been applied to measure non-local and local PMD of standard single mode optical fibres. For the non-local PMD measurements, the general interferometric technique (GINTY) was modified to operate in a round-trip configuration. In this configuration, the fibre was treated as a concatenation of two identical fibre segments. Three different sets of fibres were investigated, each set representing a particular mode coupling regime. For polarization maintaining fibres, (PMFs), with no mode coupling, a factor of two was found between forward and single-end measurements. For long single mode fibres in the long length regime, the factor was 1.4. For a combination of PMF and single mode fibres, a factor of 1.6 was obtained. The method which is accurate, repeatable, low cost and robust is very suitable for field applications. The second method is the polarization optical time domain reflectometric (P-OTDR) technique. This technique performs local birefringence measurements by measuring the evolution of the states of polarization (SOP). The birefringence information from such measurements was extracted and analysed to characterise four different fibres. Beat lengths and correlation lengths extracted from the P-OTDR were used to calculate the differential group delay (DGD) of the fibres. Next an expression for the root-mean-square differential group delay was derived and applied to the birefringence measurements to calculate the DGDs at a single wavelength. This method which operates at a single wavelength has a huge advantage. Firstly it is able to measure completely all the fibre characteristic parameters. Secondly it can measure mean DGD, root mean square DGD and instantaneous DGD. A plot of instantaneous DGD vs. length enables one to identify and eliminate sections with particularly high DGD. Finally since the P-OTDR system operates with a single wavelength, real time monitoring of PMD is possible via multiplexing. The results obtained are repeatable, accurate and are in good agreement with the standard Jones Matrix Eigenanalysis (JME) technique.
- Full Text:
- Date Issued: 2013