Analysis of the influence of peer education programmes on learner behaviour, the case of Bulelani high school, Queenstown
- Authors: Bedula, Nomanani Doris
- Date: 2013
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/1165 , vital:26532
- Description: This study focuses on the influence of peer education programmes on learner behaviour. Peer education is a critical approach for behaviour-change. The presentation had two objectives. The first objective was to determine the nature and extent of peer education programmes policy implementation in the school under study. The second objective was to determine the impact of the policy on learner behaviour. A questionnaire which was administered to all trained peer educators at Bulelani High School indicated that all respondents agreed that peer education was educationally relevant and offered accurate information. Furthermore, results indicated that older learners strongly agreed that peer education programmes have an impact on behavioural changes than younger learners who merely agreed on that. The results also showed that the duration of involvement in peer education programmes influences the opinion on the impact of peer education on behavioural changes. Looking at the respondents ’gender, the researcher could not find any evidence that the impact of peer education on behavioural change depends on the gender of the respondent and therefore concludes that opinions are independent of gender. The study shows that in schools where peer education programmes are well implemented and monitored, they do impact on learner-behaviour in a positive way.
- Full Text:
- Date Issued: 2013
- Authors: Bedula, Nomanani Doris
- Date: 2013
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/1165 , vital:26532
- Description: This study focuses on the influence of peer education programmes on learner behaviour. Peer education is a critical approach for behaviour-change. The presentation had two objectives. The first objective was to determine the nature and extent of peer education programmes policy implementation in the school under study. The second objective was to determine the impact of the policy on learner behaviour. A questionnaire which was administered to all trained peer educators at Bulelani High School indicated that all respondents agreed that peer education was educationally relevant and offered accurate information. Furthermore, results indicated that older learners strongly agreed that peer education programmes have an impact on behavioural changes than younger learners who merely agreed on that. The results also showed that the duration of involvement in peer education programmes influences the opinion on the impact of peer education on behavioural changes. Looking at the respondents ’gender, the researcher could not find any evidence that the impact of peer education on behavioural change depends on the gender of the respondent and therefore concludes that opinions are independent of gender. The study shows that in schools where peer education programmes are well implemented and monitored, they do impact on learner-behaviour in a positive way.
- Full Text:
- Date Issued: 2013
An assessment of opportunities for implementing lean management in the healthcare supply chain of selected clinics in the East London area
- Authors: Beja, Fezekile Sydwell
- Date: 2013
- Subjects: Lean manufacturing -- Management , Business logistics -- South Africa -- East London , Medical care -- South Africa -- East London
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8899 , http://hdl.handle.net/10948/d1020958
- Description: When the current South African government came into power two decades ago they inherited a fragmented health care system whose main focus was on the tertiary care level. The strategy of the current government was to re-focus the whole health care system and prioritize primary health care system. That included setting up district health care systems and building primary health care centres in the areas within the communities in order to make health care accessible to everybody. Due to financial difficulties the majority of the people staying in these communities solely depend on these clinics as they cannot afford to buy health care services in the private sector. The study seeks to assess the current medication supply chain to these clinics with a view of coming up with recommendations that, when implemented, will ensure that the supply of medication by the clinics is able to meet the demands of their patients. Lean management is a system that was started in the manufacturing sector and because of its success there it was later adopted by the service industry. Lean is a system that seeks to eliminate all forms of waste and improve the quality of the service rendered to the satisfaction of the customer/patient. Literature review and discussion of lean implementation is discussed extensively. The findings of the study are presented, analyzed and discussed. In these findings it is noted that the system is functioning very well but there are challenges in these clinics that need to be addressed. Recommendations of how lean management can be implemented successfully to optimize the functioning of the current system are discusse The permission received from the Department of Health to conduct this study came with contractual obligations that the researcher promised to honour. One of those requirement stated clearly that the findings of the study should not be published anywhere without the permission of the Department (see addendums A & C). It is under that premise that the researcher wants to bring this to the attention of the relevant university departments, with the hope of ensuring that this contractual obligation is honoured.
- Full Text:
- Date Issued: 2013
- Authors: Beja, Fezekile Sydwell
- Date: 2013
- Subjects: Lean manufacturing -- Management , Business logistics -- South Africa -- East London , Medical care -- South Africa -- East London
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8899 , http://hdl.handle.net/10948/d1020958
- Description: When the current South African government came into power two decades ago they inherited a fragmented health care system whose main focus was on the tertiary care level. The strategy of the current government was to re-focus the whole health care system and prioritize primary health care system. That included setting up district health care systems and building primary health care centres in the areas within the communities in order to make health care accessible to everybody. Due to financial difficulties the majority of the people staying in these communities solely depend on these clinics as they cannot afford to buy health care services in the private sector. The study seeks to assess the current medication supply chain to these clinics with a view of coming up with recommendations that, when implemented, will ensure that the supply of medication by the clinics is able to meet the demands of their patients. Lean management is a system that was started in the manufacturing sector and because of its success there it was later adopted by the service industry. Lean is a system that seeks to eliminate all forms of waste and improve the quality of the service rendered to the satisfaction of the customer/patient. Literature review and discussion of lean implementation is discussed extensively. The findings of the study are presented, analyzed and discussed. In these findings it is noted that the system is functioning very well but there are challenges in these clinics that need to be addressed. Recommendations of how lean management can be implemented successfully to optimize the functioning of the current system are discusse The permission received from the Department of Health to conduct this study came with contractual obligations that the researcher promised to honour. One of those requirement stated clearly that the findings of the study should not be published anywhere without the permission of the Department (see addendums A & C). It is under that premise that the researcher wants to bring this to the attention of the relevant university departments, with the hope of ensuring that this contractual obligation is honoured.
- Full Text:
- Date Issued: 2013
Playing broken telephone with student feedback: the possibilities and issues of transformation within a South African case of a collegial rationality model of evaluation
- Authors: Belluigi, Dina Z
- Date: 2013
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/66943 , vital:29003 , https://doi.org/10.1016/B978-1-84334-655-5.50001-5
- Description: publisher version , Drawing on the case of a small South African university which espouses a social justice approach to transformation, this chapter considers the possibilities and challenges created for student feedback within an institutional context that gives the individual lecturer a large degree of autonomy in evaluation. The chapter looks at some of the dominant perceptions of student feedback in addition to how it is collected and utilised, by referring to the institution’s policies and guideline documents; institutional research conducted with course coordinators; responses elicited from 40 lecturers on the issues outlined in this chapter; the author’s own reflections as a staff developer in the institution; and specific examples of good practice from lecturers situated within social science disciplines. The emerging concerns which structured this discussion are: the impact of student feedback on improving quality; enabling student voice; increasing student ownership; and the educational value of evaluation processes.
- Full Text: false
- Date Issued: 2013
- Authors: Belluigi, Dina Z
- Date: 2013
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/66943 , vital:29003 , https://doi.org/10.1016/B978-1-84334-655-5.50001-5
- Description: publisher version , Drawing on the case of a small South African university which espouses a social justice approach to transformation, this chapter considers the possibilities and challenges created for student feedback within an institutional context that gives the individual lecturer a large degree of autonomy in evaluation. The chapter looks at some of the dominant perceptions of student feedback in addition to how it is collected and utilised, by referring to the institution’s policies and guideline documents; institutional research conducted with course coordinators; responses elicited from 40 lecturers on the issues outlined in this chapter; the author’s own reflections as a staff developer in the institution; and specific examples of good practice from lecturers situated within social science disciplines. The emerging concerns which structured this discussion are: the impact of student feedback on improving quality; enabling student voice; increasing student ownership; and the educational value of evaluation processes.
- Full Text: false
- Date Issued: 2013
A proposed schema for the conditions of creativity in fine art studio practice
- Authors: Belluigi, Dina Z
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/64641 , vital:28584 , http://www.ijea.org/v14n19/index.html
- Description: Drawing from creativity and art research, this paper proposes a schema for the conditions for creativity in fine art studio practice. Discussion focuses on how the triad of creative person, artmaking process, and artwork is constructed, and the situating of this creative triad within an enabling environment, which on a structural level includes the curriculum, and on a cultural and agential level involves teaching and learning relationships. An emphasis in placed on affective concerns, particularly the role of uncertainty as an important part of the art student’s learning experience.
- Full Text:
- Date Issued: 2013
- Authors: Belluigi, Dina Z
- Date: 2013
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/64641 , vital:28584 , http://www.ijea.org/v14n19/index.html
- Description: Drawing from creativity and art research, this paper proposes a schema for the conditions for creativity in fine art studio practice. Discussion focuses on how the triad of creative person, artmaking process, and artwork is constructed, and the situating of this creative triad within an enabling environment, which on a structural level includes the curriculum, and on a cultural and agential level involves teaching and learning relationships. An emphasis in placed on affective concerns, particularly the role of uncertainty as an important part of the art student’s learning experience.
- Full Text:
- Date Issued: 2013
Experiences of professional nurses with regard to accessing information at the point-of-care via mobile-computing devices at a public hospital
- Authors: Benjamin, Valencia
- Date: 2013
- Subjects: Information storage and retrieval systems -- Hospitals , Point-of-care testing , Public hospitals -- Medical staff
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10060 , http://hdl.handle.net/10948/d1020193
- Description: Mobile computing devices are capable of changing how healthcare is delivered in the future, since they aim to merge and integrate all services into one device that is versatile, customisable, and portable. The aim of this study was to explore and describe the experiences of professional nurses with regard to accessing information at the point-of-care of the patient, in order to develop guidelines that could assist other professional nurses with implementing the mobile computing device for accessing information at the point-of-care of patients. To achieve the purpose of the study, a qualitative, explorative, descriptive, and contextual design was used to conduct this research – to gain an understanding of how the professional nurses experienced accessing information at the point-of-care via mobile computing devices. The study was conducted among the professional nurses employed at the public hospital, who were trained and provided with the mobile computing device for accessing information at the point-of-care for more than two years. In-depth interviewing was conducted to obtain the data. Data analysis was done using Tesch‘s method to make sense out of text and data. Four themes were identified, namely, the professional nurses‘ expression of various experiences regarding the training received; the need for support in implementing the mobile computing device; the accessing of information at the point-of-care as beneficial for educational purposes; and the accessing of information at the point-of-care as beneficial to patient care. Two main guidelines were developed. The study concludes with recommendations made with regard to the areas of nursing practice, education and research. Throughout the study, the researcher abided by the ethical considerations. The aspects of trustworthiness implemented in this study, included dependability, credibility, transferability and confirmability (Holloway & Wheeler, 2010:298).
- Full Text:
- Date Issued: 2013
- Authors: Benjamin, Valencia
- Date: 2013
- Subjects: Information storage and retrieval systems -- Hospitals , Point-of-care testing , Public hospitals -- Medical staff
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10060 , http://hdl.handle.net/10948/d1020193
- Description: Mobile computing devices are capable of changing how healthcare is delivered in the future, since they aim to merge and integrate all services into one device that is versatile, customisable, and portable. The aim of this study was to explore and describe the experiences of professional nurses with regard to accessing information at the point-of-care of the patient, in order to develop guidelines that could assist other professional nurses with implementing the mobile computing device for accessing information at the point-of-care of patients. To achieve the purpose of the study, a qualitative, explorative, descriptive, and contextual design was used to conduct this research – to gain an understanding of how the professional nurses experienced accessing information at the point-of-care via mobile computing devices. The study was conducted among the professional nurses employed at the public hospital, who were trained and provided with the mobile computing device for accessing information at the point-of-care for more than two years. In-depth interviewing was conducted to obtain the data. Data analysis was done using Tesch‘s method to make sense out of text and data. Four themes were identified, namely, the professional nurses‘ expression of various experiences regarding the training received; the need for support in implementing the mobile computing device; the accessing of information at the point-of-care as beneficial for educational purposes; and the accessing of information at the point-of-care as beneficial to patient care. Two main guidelines were developed. The study concludes with recommendations made with regard to the areas of nursing practice, education and research. Throughout the study, the researcher abided by the ethical considerations. The aspects of trustworthiness implemented in this study, included dependability, credibility, transferability and confirmability (Holloway & Wheeler, 2010:298).
- 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
An economic analysis of concentrator photovoltaic technology use in South Africa: a case study
- Authors: Beukes, Justin
- Date: 2013
- Subjects: Renewable energy resources , Power resources -- Economic aspects
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:9017 , http://hdl.handle.net/10948/d1018636
- Description: South Africa relies heavily on fossil fuels, particularly coal, to generate electricity and it is a well known fact that the use of fossil fuels contributes to climate change, as it produces greenhouse gases (GHGs). In fact, internationally South Africa is the 17th highest emitter of GHGs (Congressional Research Service (CRS), 2008). Coupled with the environmental consequences of fossil fuel use, South Africa has a further responsibility of addressing the inherited backlog of electricity provision to the rural, and previously disadvantaged communities. In an attempt to address these two problems, the government issued the White Paper on Renewable Energy. In this paper, renewable energy alternatives are proposed to replace a portion of traditional electricity generating methods. Concentrator photovoltaic (CPV) energy generation is one such renewable option available to government. CPV uses optic elements (such as lenses) to concentrate sunlight onto solar cells. Owing to the light being concentrated, the cells in CPV use less semiconductor material, which makes them more efficient in comparison to conventional photovoltaic (PV) cells. CPV is a technology that operates well in regions with high solar radiation. As such, South Africa is particularly well suited for this technology, with average solar radiation levels ranging from 4.5 to 6.5 05 ℎ/. CPV is also well suited for off-grid application, which addresses electricity demand in remote rural areas. This study is an economic project analysis of the installation, operation, maintenance, and decommissioning of CPV technology in a rural area in the Eastern Cape, South Africa. The study area chosen for this purpose is the Tyefu settlement in the Eastern Cape. Tyefu was deemed ideal for this type of analysis due to four characteristics. Firstly, Tyefu is a remote rural settlement at the end of the national grid. Secondly, the community is very poor and previously disadvantaged. Thirdly, many households are without Eskom generated electricity. Lastly, the study area is located in an area with ideal irradiance levels for CPV. Two methods of economic project analysis are applied to this case study, namely a costbenefit analysis (CBA) and a cost-effectiveness analysis (CEA). Additionally, two types of CBA are performed, namely a private CBA and a social CBA. The private CBA evaluates the Tyefu electrification project from a private investor's perspective and the social CBA evaluates the project from society's point of view. The CEAs carried out compare the costeffectiveness of the traditional PV technology to that of CPV in terms of private and social costs. The private costs and benefits of the CPV project were identified and valued in terms of market prices. Then, this cost benefit profile was used to calculate net benefits which in turn were discounted to present values using a private discount rate of 6.42 percent. Three decision making criteria were generated, namely the net present value (NPV), the internal rate of return (IRR) and the benefit cost ratio (BCR). Sensitivity analysis was carried out by varying the private discount rate and the bidding price. The social costs and benefits of the CPV project were identified and valued in terms of shadow prices. This cost benefit profile was used to calculate net benefits. The net benefits were discounted to present values using a composite social discount rate equal to 5.97 percent. The same decision making criteria used in the private CBA were used in the social CBA and a sensitivity analysis was completed by varying the social discount rate. In terms of the private CEA, the costs were identified and valued in terms of market prices. All costs were brought to present values using the private discount rate of 6.42 percent. In terms of the social CEA, the costs were identified and valued in terms of shadow prices. All costs were brought to present values using the social discount rate of 5.97 percent. The cost-effectiveness (CE) ratios calculated have identical denominators since the annual output for both technologies are identical - both CPV and PV systems deliver 30 300 kWh per annum. This output is based on the demand of the given case study. The private CBA showed unfavourable results. The private CBA has a NPV of R2 046 629.01, the IRR is undefined (this is due to no sign change being present in the cost benefit profile), and has a BCR of 0.365. However, the social CBA yielded positive results, with a NPV of R125 616.64, an IRR of 8 percent (which exceeds the social discount rate of 5.97 percent), and a BCR of 1.045. The CEA showed that the CPV is more cost-effective than the traditional PV both in terms of private and social costs. The private CE ratio of CPV is R4.23/kWh compared to PV's CE ratio of R4.39/kWh. Similarly, the social CE ratio of CPV is R3.51/kWh compared to PV's CE ratio of R3.69/kWh. CPV rollout appears to be socially efficient on a small scale according to the social CBA. Consequently, the CPV project is not seen as desirable in terms of the private CBA as the benefit (income received per kWh) in the private analysis is too small to outweigh the costs of implementing and running a CPV plant in Tyefu. On the other hand, a redeeming factor is that CPV may be feasible privately, for large scale applications. A major reason for the CPV project not being appealing to private investors is that the maximum bidding price of R2.85/kWh (as at August 2011) is not high enough for private investors to undertake the CPV project. The sensitivity analysis of the bidding price showed that the bidding price of R2.85/kWh needs to be increased in the range of 250 percent (R7.13/kWh) and 300 percent (R8.55/kWh) for a great enough incentive to exist for private investors. It is thus recommended that policymakers take this into consideration when formulating policy. In terms of the social CBA, it is recommended that government undertake CPV projects of this kind, as it will be a socially desirable allocation of resources. If government were to pursue these types of projects, it is recommended that CPV be implemented as it is more cost effective than PV.
- Full Text:
- Date Issued: 2013
- Authors: Beukes, Justin
- Date: 2013
- Subjects: Renewable energy resources , Power resources -- Economic aspects
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:9017 , http://hdl.handle.net/10948/d1018636
- Description: South Africa relies heavily on fossil fuels, particularly coal, to generate electricity and it is a well known fact that the use of fossil fuels contributes to climate change, as it produces greenhouse gases (GHGs). In fact, internationally South Africa is the 17th highest emitter of GHGs (Congressional Research Service (CRS), 2008). Coupled with the environmental consequences of fossil fuel use, South Africa has a further responsibility of addressing the inherited backlog of electricity provision to the rural, and previously disadvantaged communities. In an attempt to address these two problems, the government issued the White Paper on Renewable Energy. In this paper, renewable energy alternatives are proposed to replace a portion of traditional electricity generating methods. Concentrator photovoltaic (CPV) energy generation is one such renewable option available to government. CPV uses optic elements (such as lenses) to concentrate sunlight onto solar cells. Owing to the light being concentrated, the cells in CPV use less semiconductor material, which makes them more efficient in comparison to conventional photovoltaic (PV) cells. CPV is a technology that operates well in regions with high solar radiation. As such, South Africa is particularly well suited for this technology, with average solar radiation levels ranging from 4.5 to 6.5 05 ℎ/. CPV is also well suited for off-grid application, which addresses electricity demand in remote rural areas. This study is an economic project analysis of the installation, operation, maintenance, and decommissioning of CPV technology in a rural area in the Eastern Cape, South Africa. The study area chosen for this purpose is the Tyefu settlement in the Eastern Cape. Tyefu was deemed ideal for this type of analysis due to four characteristics. Firstly, Tyefu is a remote rural settlement at the end of the national grid. Secondly, the community is very poor and previously disadvantaged. Thirdly, many households are without Eskom generated electricity. Lastly, the study area is located in an area with ideal irradiance levels for CPV. Two methods of economic project analysis are applied to this case study, namely a costbenefit analysis (CBA) and a cost-effectiveness analysis (CEA). Additionally, two types of CBA are performed, namely a private CBA and a social CBA. The private CBA evaluates the Tyefu electrification project from a private investor's perspective and the social CBA evaluates the project from society's point of view. The CEAs carried out compare the costeffectiveness of the traditional PV technology to that of CPV in terms of private and social costs. The private costs and benefits of the CPV project were identified and valued in terms of market prices. Then, this cost benefit profile was used to calculate net benefits which in turn were discounted to present values using a private discount rate of 6.42 percent. Three decision making criteria were generated, namely the net present value (NPV), the internal rate of return (IRR) and the benefit cost ratio (BCR). Sensitivity analysis was carried out by varying the private discount rate and the bidding price. The social costs and benefits of the CPV project were identified and valued in terms of shadow prices. This cost benefit profile was used to calculate net benefits. The net benefits were discounted to present values using a composite social discount rate equal to 5.97 percent. The same decision making criteria used in the private CBA were used in the social CBA and a sensitivity analysis was completed by varying the social discount rate. In terms of the private CEA, the costs were identified and valued in terms of market prices. All costs were brought to present values using the private discount rate of 6.42 percent. In terms of the social CEA, the costs were identified and valued in terms of shadow prices. All costs were brought to present values using the social discount rate of 5.97 percent. The cost-effectiveness (CE) ratios calculated have identical denominators since the annual output for both technologies are identical - both CPV and PV systems deliver 30 300 kWh per annum. This output is based on the demand of the given case study. The private CBA showed unfavourable results. The private CBA has a NPV of R2 046 629.01, the IRR is undefined (this is due to no sign change being present in the cost benefit profile), and has a BCR of 0.365. However, the social CBA yielded positive results, with a NPV of R125 616.64, an IRR of 8 percent (which exceeds the social discount rate of 5.97 percent), and a BCR of 1.045. The CEA showed that the CPV is more cost-effective than the traditional PV both in terms of private and social costs. The private CE ratio of CPV is R4.23/kWh compared to PV's CE ratio of R4.39/kWh. Similarly, the social CE ratio of CPV is R3.51/kWh compared to PV's CE ratio of R3.69/kWh. CPV rollout appears to be socially efficient on a small scale according to the social CBA. Consequently, the CPV project is not seen as desirable in terms of the private CBA as the benefit (income received per kWh) in the private analysis is too small to outweigh the costs of implementing and running a CPV plant in Tyefu. On the other hand, a redeeming factor is that CPV may be feasible privately, for large scale applications. A major reason for the CPV project not being appealing to private investors is that the maximum bidding price of R2.85/kWh (as at August 2011) is not high enough for private investors to undertake the CPV project. The sensitivity analysis of the bidding price showed that the bidding price of R2.85/kWh needs to be increased in the range of 250 percent (R7.13/kWh) and 300 percent (R8.55/kWh) for a great enough incentive to exist for private investors. It is thus recommended that policymakers take this into consideration when formulating policy. In terms of the social CBA, it is recommended that government undertake CPV projects of this kind, as it will be a socially desirable allocation of resources. If government were to pursue these types of projects, it is recommended that CPV be implemented as it is more cost effective than PV.
- Full Text:
- Date Issued: 2013
An Android and Visual C-based controller for a Delta Parallel Robot for use as a classroom training tool
- Authors: Bezuidenhout, Sarel
- Date: 2013
- Subjects: Robotics -- Human factors , Human-robot interaction , Wireless communication systems
- Language: English
- Type: Thesis , Masters , MEngineering (Mechatronics)
- Identifier: vital:9656 , http://hdl.handle.net/10948/d1020284
- Description: This report will show the development of a Delta Parallel robot, to aid in teaching the basics of robotic motion programming. The platform developed will be created at a fraction of the cost of conventional commercial training systems. This report will therefore show the development procedure as well as the development of some of the example training material. The system will use wireless serial data communication in the form of a Bluetooth connection. This connection will allow an Android tablet, functioning as the human-machine interface (HMI) for the system, to communicate with the motion controller. The motion controller is based in the C environment. This will allow future development of the machine, and allow the system to be used on an integral level, should the trainers require an in depth approach. The motion control software will be implemented on a RoBoard, a development board specifically designed for low- to mid-range robotics. The conclusion of this report will show an example task being completed on the training platform. This will demonstrate some of the basic robotic motion programming aspects which include point to point, linear, and circular motion types but will also include setting and resetting outputs. Performance parameters such as repeatability and reproducibility are important, as it will indirectly show the level of ease with which the system can be manipulated from the software. Finally, the results will be briefly discussed and some recommendations for improvements on the training system and suggestions for future development will be given.
- Full Text:
- Date Issued: 2013
- Authors: Bezuidenhout, Sarel
- Date: 2013
- Subjects: Robotics -- Human factors , Human-robot interaction , Wireless communication systems
- Language: English
- Type: Thesis , Masters , MEngineering (Mechatronics)
- Identifier: vital:9656 , http://hdl.handle.net/10948/d1020284
- Description: This report will show the development of a Delta Parallel robot, to aid in teaching the basics of robotic motion programming. The platform developed will be created at a fraction of the cost of conventional commercial training systems. This report will therefore show the development procedure as well as the development of some of the example training material. The system will use wireless serial data communication in the form of a Bluetooth connection. This connection will allow an Android tablet, functioning as the human-machine interface (HMI) for the system, to communicate with the motion controller. The motion controller is based in the C environment. This will allow future development of the machine, and allow the system to be used on an integral level, should the trainers require an in depth approach. The motion control software will be implemented on a RoBoard, a development board specifically designed for low- to mid-range robotics. The conclusion of this report will show an example task being completed on the training platform. This will demonstrate some of the basic robotic motion programming aspects which include point to point, linear, and circular motion types but will also include setting and resetting outputs. Performance parameters such as repeatability and reproducibility are important, as it will indirectly show the level of ease with which the system can be manipulated from the software. Finally, the results will be briefly discussed and some recommendations for improvements on the training system and suggestions for future development will be given.
- Full Text:
- Date Issued: 2013
Ensuring high quality public safety data in participatory crowdsourcing used as a smart city initiative
- Authors: Bhana, Bhaveer
- Date: 2013
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11141 , http://hdl.handle.net/10353/d1014673
- Description: The increase in urbanisation is making the management of city resources a difficult task. Data collected through observations of the city surroundings can be used to improve decision-making in terms of manage city resources. However, the data collected must be of quality in order to ensure that effective and efficient decisions are made. This study is focused on improving emergency and non-emergency services (city resources) by using Participatory Crowdsourcing as a data collection method (collect public safety data) utilising voice technology in the form of an advanced IVR system known as the Spoken Web. The study illustrates how Participatory Crowdsourcing can be used as a Smart City initiative by illustrating what is required to contribute to the Smart City, and developing a roadmap in the form of a model to assist decision-making when selecting the optimal Crowdsourcing initiative. A Public Safety Data Quality criteria was also developed to assess and identify the problems affecting Data Quality. This study is guided by the Design Science methodology and utilises two driving theories: the characteristics of a Smart City, and Wang and Strong’s (1996) Data Quality Framework. Five Critical Success Factors were developed to ensure high quality public safety data is collected through Participatory Crowdsourcing utilising voice technologies. These Critical Success Factors include: Relevant Public Safety Data, Public Safety Reporting Instructions, Public Safety Data Interpretation and Presentation Format, Public Safety Data Integrity and Security, and Simple Participatory Crowdsourcing System Setup.
- Full Text:
- Date Issued: 2013
- Authors: Bhana, Bhaveer
- Date: 2013
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: vital:11141 , http://hdl.handle.net/10353/d1014673
- Description: The increase in urbanisation is making the management of city resources a difficult task. Data collected through observations of the city surroundings can be used to improve decision-making in terms of manage city resources. However, the data collected must be of quality in order to ensure that effective and efficient decisions are made. This study is focused on improving emergency and non-emergency services (city resources) by using Participatory Crowdsourcing as a data collection method (collect public safety data) utilising voice technology in the form of an advanced IVR system known as the Spoken Web. The study illustrates how Participatory Crowdsourcing can be used as a Smart City initiative by illustrating what is required to contribute to the Smart City, and developing a roadmap in the form of a model to assist decision-making when selecting the optimal Crowdsourcing initiative. A Public Safety Data Quality criteria was also developed to assess and identify the problems affecting Data Quality. This study is guided by the Design Science methodology and utilises two driving theories: the characteristics of a Smart City, and Wang and Strong’s (1996) Data Quality Framework. Five Critical Success Factors were developed to ensure high quality public safety data is collected through Participatory Crowdsourcing utilising voice technologies. These Critical Success Factors include: Relevant Public Safety Data, Public Safety Reporting Instructions, Public Safety Data Interpretation and Presentation Format, Public Safety Data Integrity and Security, and Simple Participatory Crowdsourcing System Setup.
- Full Text:
- Date Issued: 2013
Gender equality in the employment of senior secondary schools managers in the district of Butterworth
- Authors: Bikitsha, Sakhiwo
- Date: 2013
- Subjects: Educational equalization -- South Africa -- Eastern Cape , Sex discrimination in education -- South Africa -- Eastern Cape , School management and organization
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8489 , http://hdl.handle.net/10948/d1020005
- Description: In terms of Section 9 of the Constitution of the Republic of South Africa of 1996, Chapter Two, the Bill of Rights, there should be gender equality amongst other things. In terms of Section15 (i) of the Employment Equity Act (Act 55 of 1998), there should be equal representation of suitably qualified people from the designated groups (blacks, women and people with disabilities) in all occupational categories and levels in the workforce. Section 15 (ii)provides that an employer who employs more than 50 employees must conduct a gender audit and make a gender equity plan and implement it when new employees are employed. In the Department of Education in the District of Butterworth, there is no gender equality in the number of senior secondary school managers. Men constituted 65 percent and women constituted 35 percent. The study investigated reasons for unequal representation of men and women as senior secondary school managers. The study was qualitative in design. The participants in the study were the Assistant Director of the Human Resource Section of the Department of Education and school governing body members, who were parents and educators. Interviews were used to collect data from the participants The study found that, amongst other things, gender equity was not considered when senior secondary schools managers were employed. That was why there was unequal representation of men and women in senior secondary schools’ management positions. This implied that those involved in the employment of secondary school managers in the district of Butterworth did not consider the Employment Equity Act (Act 55 of 1998) as a guide when employing senior secondary school managers in order to be able to achieve gender equality in this position. That was why there was unequal representation of men and women in senior secondary schools’ management positions.
- Full Text:
- Date Issued: 2013
- Authors: Bikitsha, Sakhiwo
- Date: 2013
- Subjects: Educational equalization -- South Africa -- Eastern Cape , Sex discrimination in education -- South Africa -- Eastern Cape , School management and organization
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8489 , http://hdl.handle.net/10948/d1020005
- Description: In terms of Section 9 of the Constitution of the Republic of South Africa of 1996, Chapter Two, the Bill of Rights, there should be gender equality amongst other things. In terms of Section15 (i) of the Employment Equity Act (Act 55 of 1998), there should be equal representation of suitably qualified people from the designated groups (blacks, women and people with disabilities) in all occupational categories and levels in the workforce. Section 15 (ii)provides that an employer who employs more than 50 employees must conduct a gender audit and make a gender equity plan and implement it when new employees are employed. In the Department of Education in the District of Butterworth, there is no gender equality in the number of senior secondary school managers. Men constituted 65 percent and women constituted 35 percent. The study investigated reasons for unequal representation of men and women as senior secondary school managers. The study was qualitative in design. The participants in the study were the Assistant Director of the Human Resource Section of the Department of Education and school governing body members, who were parents and educators. Interviews were used to collect data from the participants The study found that, amongst other things, gender equity was not considered when senior secondary schools managers were employed. That was why there was unequal representation of men and women in senior secondary schools’ management positions. This implied that those involved in the employment of secondary school managers in the district of Butterworth did not consider the Employment Equity Act (Act 55 of 1998) as a guide when employing senior secondary school managers in order to be able to achieve gender equality in this position. That was why there was unequal representation of men and women in senior secondary schools’ management positions.
- Full Text:
- Date Issued: 2013
Job satisfaction as a moderator of the relationship between work-family conflict and stress among female civil service managers in the Department of Education in the King William’s Town District
- Authors: Binqela, Thembisa
- Date: 2013
- Subjects: Job satisfaction -- South Africa -- Eastern Cape , Job stress -- South Africa -- Eastern Cape , Work -- Psychological aspects , Role conflict , Women employees -- South Africa -- Eastern Cape , Women executives -- South Africa -- Eastern Cape , Working mothers -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom (Industrial Psychology)
- Identifier: vital:11553 , http://hdl.handle.net/10353/d1007092 , Job satisfaction -- South Africa -- Eastern Cape , Job stress -- South Africa -- Eastern Cape , Work -- Psychological aspects , Role conflict , Women employees -- South Africa -- Eastern Cape , Women executives -- South Africa -- Eastern Cape , Working mothers -- South Africa -- Eastern Cape
- Description: The research at hand focuses on job satisfaction as a moderator of the relationship between work-family conflict and stress among female civil service managers in the Department of Education in the King William’s Town District. Samples of 100 employees were used in the study. The data was collected by means of a questionnaire which consisted of the following sections: (i) a biographical and occupational data questionnaire,(ii) Eum, Lee, and Paek’s (2007) Effort-Reward Imbalance questionnaire, (iii) Bedenia, Burke, and Moffat’s (1998) Short-form Work-family Conflict questionnaire, and (iv) Halpern’s (1966) Job Satisfaction questionnaire. The data were analyzed by means of Pearson’s Correlation Technique, Multiple Regression Analysis, and Analysis of Variance. The results showed that job satisfaction does not moderate the relationship between work-family conflict and occupational stress. The study also found a significant positive correlation between work-family conflict and occupational stress and between work-family conflict and job satisfaction. It also showed that both work-family conflict and job satisfaction respectively accounted for a significant proportion of variance in occupational stress. The thesis ends with several recommendations for future research and for future professional or managerial practice.
- Full Text:
- Date Issued: 2013
- Authors: Binqela, Thembisa
- Date: 2013
- Subjects: Job satisfaction -- South Africa -- Eastern Cape , Job stress -- South Africa -- Eastern Cape , Work -- Psychological aspects , Role conflict , Women employees -- South Africa -- Eastern Cape , Women executives -- South Africa -- Eastern Cape , Working mothers -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom (Industrial Psychology)
- Identifier: vital:11553 , http://hdl.handle.net/10353/d1007092 , Job satisfaction -- South Africa -- Eastern Cape , Job stress -- South Africa -- Eastern Cape , Work -- Psychological aspects , Role conflict , Women employees -- South Africa -- Eastern Cape , Women executives -- South Africa -- Eastern Cape , Working mothers -- South Africa -- Eastern Cape
- Description: The research at hand focuses on job satisfaction as a moderator of the relationship between work-family conflict and stress among female civil service managers in the Department of Education in the King William’s Town District. Samples of 100 employees were used in the study. The data was collected by means of a questionnaire which consisted of the following sections: (i) a biographical and occupational data questionnaire,(ii) Eum, Lee, and Paek’s (2007) Effort-Reward Imbalance questionnaire, (iii) Bedenia, Burke, and Moffat’s (1998) Short-form Work-family Conflict questionnaire, and (iv) Halpern’s (1966) Job Satisfaction questionnaire. The data were analyzed by means of Pearson’s Correlation Technique, Multiple Regression Analysis, and Analysis of Variance. The results showed that job satisfaction does not moderate the relationship between work-family conflict and occupational stress. The study also found a significant positive correlation between work-family conflict and occupational stress and between work-family conflict and job satisfaction. It also showed that both work-family conflict and job satisfaction respectively accounted for a significant proportion of variance in occupational stress. The thesis ends with several recommendations for future research and for future professional or managerial practice.
- Full Text:
- Date Issued: 2013
Assessing the impact of shifting traditional leadership roles on local government in service delivery: a case study of the Bor County, Jonglei State, South Sudan
- Authors: Bior, Ajang Duot
- Date: 2013
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11694 , http://hdl.handle.net/10353/d1015046
- Description: The local level of government plays a pivotal role in the delivering of service in Bor county of Jonglei State in South Sudan. As the world‟s newest nation attained independence in July 2011, the republic of South Sudan face a huge mountain to climb in terms of service delivery for socio – economic transformation. A country which has ransacked by civil wars and economic exclusion of its people in the past, South Sudan needs to pool resources together for the sustainable betterment of its citizens. Service is solely dependent on leadership and effective and efficient service rendering, requires a people – centred, accountable and professional leadership. Traditional leaders have played a key role in the welfare of their subjects in South Sudan beginning long back, they have led, counselled, mediated disputes, allocated and managed land as well as preservation of customs and cultures. The study sought to assess shifting roles of traditional leaders in local government services delivery. It comprises of six chapters which are chronologically arranged. The main objectives of the study were to establish role which were played by Bor traditional leadership to promote service delivery at the local government level before independence, after independence, the extent to which the roles shifted, challenges they face currently and ways of solving them. The research question which guided the sought to find the answers to what roles traditional leaders played before and after independence, the shifting of roles, challenges and ways of addressing them. The paradigm used in the study is the qualitative research approach where empirical data was collected from a representative sample of 9 respondents. Data was collected using the non-random sampling techniques of purposely sampling. The researcher observed strict ethical guideline which includes informed consent, privacy and confidentiality. The study found out that traditional leaders played various roles under various governments. There were shifts in traditional leadership roles leaders can play and did not completely divert the roles leaders can play in service delivery. The study further established that Bor traditional leaders were willing service at the local government level but that they faced challenges particularly that of insecurity and war – related problems. The study therefore, recommended that government should pay attention to security in Bor County and the county at large. It was also recommended that government should train traditional leadership roles such as those applied in Ghana, Uganda, South Africa and Zimbabwe. Despite the said shift in roles, traditional leaders remain a key asset to the development of South Sudan.
- Full Text:
- Date Issued: 2013
- Authors: Bior, Ajang Duot
- Date: 2013
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11694 , http://hdl.handle.net/10353/d1015046
- Description: The local level of government plays a pivotal role in the delivering of service in Bor county of Jonglei State in South Sudan. As the world‟s newest nation attained independence in July 2011, the republic of South Sudan face a huge mountain to climb in terms of service delivery for socio – economic transformation. A country which has ransacked by civil wars and economic exclusion of its people in the past, South Sudan needs to pool resources together for the sustainable betterment of its citizens. Service is solely dependent on leadership and effective and efficient service rendering, requires a people – centred, accountable and professional leadership. Traditional leaders have played a key role in the welfare of their subjects in South Sudan beginning long back, they have led, counselled, mediated disputes, allocated and managed land as well as preservation of customs and cultures. The study sought to assess shifting roles of traditional leaders in local government services delivery. It comprises of six chapters which are chronologically arranged. The main objectives of the study were to establish role which were played by Bor traditional leadership to promote service delivery at the local government level before independence, after independence, the extent to which the roles shifted, challenges they face currently and ways of solving them. The research question which guided the sought to find the answers to what roles traditional leaders played before and after independence, the shifting of roles, challenges and ways of addressing them. The paradigm used in the study is the qualitative research approach where empirical data was collected from a representative sample of 9 respondents. Data was collected using the non-random sampling techniques of purposely sampling. The researcher observed strict ethical guideline which includes informed consent, privacy and confidentiality. The study found out that traditional leaders played various roles under various governments. There were shifts in traditional leadership roles leaders can play and did not completely divert the roles leaders can play in service delivery. The study further established that Bor traditional leaders were willing service at the local government level but that they faced challenges particularly that of insecurity and war – related problems. The study therefore, recommended that government should pay attention to security in Bor County and the county at large. It was also recommended that government should train traditional leadership roles such as those applied in Ghana, Uganda, South Africa and Zimbabwe. Despite the said shift in roles, traditional leaders remain a key asset to the development of South Sudan.
- Full Text:
- Date Issued: 2013
How much its own and to what end?: SADC and the culture of security and regional organisation in Southern Africa
- Authors: Bischoff, Paul, 1954-
- Date: 2013
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/161650 , vital:40650 , ISBN 9781134118656
- Description: This book aims to examine the conceptions and practices of security adopted by Regional Organisations (ROs) across the globe. Since the end of the Cold War, there has been an increased focus on regions as a relevant realm for security, with actors within regional contexts identifying a significant degree of interdependency between one another. As a consequence, international security has taken on a distinct regionally institutionalised character, as seen by the increase in calls for greater utilisation of ‘Chapter VIII: Regional Arrangements’ of the UN, in order to create a devolved UN-led system of global security management. However, the idea of a system of global security management is a remote prospect, because divergence seems to be as important as commonality in terms of regional security.
- Full Text:
- Date Issued: 2013
- Authors: Bischoff, Paul, 1954-
- Date: 2013
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/161650 , vital:40650 , ISBN 9781134118656
- Description: This book aims to examine the conceptions and practices of security adopted by Regional Organisations (ROs) across the globe. Since the end of the Cold War, there has been an increased focus on regions as a relevant realm for security, with actors within regional contexts identifying a significant degree of interdependency between one another. As a consequence, international security has taken on a distinct regionally institutionalised character, as seen by the increase in calls for greater utilisation of ‘Chapter VIII: Regional Arrangements’ of the UN, in order to create a devolved UN-led system of global security management. However, the idea of a system of global security management is a remote prospect, because divergence seems to be as important as commonality in terms of regional security.
- Full Text:
- Date Issued: 2013
Gravitational wave astronomy: a new window to the cosmos a new window to the cosmos
- Authors: Bishop, Nigel T
- Date: 2013
- Language: English
- Type: Text
- Identifier: vital:581 , http://hdl.handle.net/10962/d1018923
- Description: [Introduction] Since recorded history began, humankind has wondered about, and tried to understand, the Universe. Until about 400 years ago, the only tool available was the naked eye. In 1609 Galileo applied the new invention of the telescope to astronomy, and so opened a window to the cosmos. This window has been getting wider and clearer with every technological improvement. But always the medium bringing information about the Universe has been light, because radio waves, X-rays, gamma-rays etc. are light at different energies, or in other words different colours of light. But that is about to change. In a few years time we will have measured gravitational waves, and so will have opened a new window to the cosmos. And that window is very different to the one open to light in its various forms, because these are all emitted from the surface of an astronomical body. Gravitational waves are caused by the relative motion of matter, and as such are generated primarily in the deep interior of the body.
- Full Text:
- Date Issued: 2013
- Authors: Bishop, Nigel T
- Date: 2013
- Language: English
- Type: Text
- Identifier: vital:581 , http://hdl.handle.net/10962/d1018923
- Description: [Introduction] Since recorded history began, humankind has wondered about, and tried to understand, the Universe. Until about 400 years ago, the only tool available was the naked eye. In 1609 Galileo applied the new invention of the telescope to astronomy, and so opened a window to the cosmos. This window has been getting wider and clearer with every technological improvement. But always the medium bringing information about the Universe has been light, because radio waves, X-rays, gamma-rays etc. are light at different energies, or in other words different colours of light. But that is about to change. In a few years time we will have measured gravitational waves, and so will have opened a new window to the cosmos. And that window is very different to the one open to light in its various forms, because these are all emitted from the surface of an astronomical body. Gravitational waves are caused by the relative motion of matter, and as such are generated primarily in the deep interior of the body.
- Full Text:
- Date Issued: 2013
Search engine poisoning and its prevalence in modern search engines
- Authors: Blaauw, Pieter
- Date: 2013
- Subjects: Web search engines Internet searching World Wide Web Malware (Computer software) Computer viruses Rootkits (Computer software) Spyware (Computer software)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4572 , http://hdl.handle.net/10962/d1002037
- Description: The prevalence of Search Engine Poisoning in trending topics and popular search terms on the web within search engines is investigated. Search Engine Poisoning is the act of manipulating search engines in order to display search results from websites infected with malware. Research done between February and August 2012, using both manual and automated techniques, shows us how easily the criminal element manages to insert malicious content into web pages related to popular search terms within search engines. In order to provide the reader with a clear overview and understanding of the motives and the methods of the operators of Search Engine Poisoning campaigns, an in-depth review of automated and semi-automated web exploit kits is done, as well as looking into the motives for running these campaigns. Three high profile case studies are examined, and the various Search Engine Poisoning campaigns associated with these case studies are discussed in detail to the reader. From February to August 2012, data was collected from the top trending topics on Google’s search engine along with the top listed sites related to these topics, and then passed through various automated tools to discover if these results have been infiltrated by the operators of Search Engine Poisoning campaings, and the results of these automated scans are then discussed in detail. During the research period, manual searching for Search Engine Poisoning campaigns was also done, using high profile news events and popular search terms. These results are analysed in detail to determine the methods of attack, the purpose of the attack and the parties behind it
- Full Text:
- Date Issued: 2013
- Authors: Blaauw, Pieter
- Date: 2013
- Subjects: Web search engines Internet searching World Wide Web Malware (Computer software) Computer viruses Rootkits (Computer software) Spyware (Computer software)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4572 , http://hdl.handle.net/10962/d1002037
- Description: The prevalence of Search Engine Poisoning in trending topics and popular search terms on the web within search engines is investigated. Search Engine Poisoning is the act of manipulating search engines in order to display search results from websites infected with malware. Research done between February and August 2012, using both manual and automated techniques, shows us how easily the criminal element manages to insert malicious content into web pages related to popular search terms within search engines. In order to provide the reader with a clear overview and understanding of the motives and the methods of the operators of Search Engine Poisoning campaigns, an in-depth review of automated and semi-automated web exploit kits is done, as well as looking into the motives for running these campaigns. Three high profile case studies are examined, and the various Search Engine Poisoning campaigns associated with these case studies are discussed in detail to the reader. From February to August 2012, data was collected from the top trending topics on Google’s search engine along with the top listed sites related to these topics, and then passed through various automated tools to discover if these results have been infiltrated by the operators of Search Engine Poisoning campaings, and the results of these automated scans are then discussed in detail. During the research period, manual searching for Search Engine Poisoning campaigns was also done, using high profile news events and popular search terms. These results are analysed in detail to determine the methods of attack, the purpose of the attack and the parties behind it
- Full Text:
- Date Issued: 2013
The emerging epidemic of diabetes mellitus: a 20 year community study in former Transkei
- Authors: Blanco-Blanco, E V
- Date: 2013
- Subjects: Diabetes Diabetes -- Treatment -- South Africa Diabetes -- Prevention
- Language: English
- Type: text , Lectures
- Identifier: http://hdl.handle.net/11260/1100 , vital:30595
- Description: This lecture intends to raise awareness on the current global epidemic of diabetes mellitus, its increasing prevalence and growing burden, as well as its socio-economic and healthcare impact. It also intended to describe the pattern of diabetes observed in the community of the former Transkei. It is also the intention to highlight possible collaborative areas to counteract the increasing burden of diabetes in South Africa and more specifically in the community around WSU.
- Full Text:
- Date Issued: 2013
- Authors: Blanco-Blanco, E V
- Date: 2013
- Subjects: Diabetes Diabetes -- Treatment -- South Africa Diabetes -- Prevention
- Language: English
- Type: text , Lectures
- Identifier: http://hdl.handle.net/11260/1100 , vital:30595
- Description: This lecture intends to raise awareness on the current global epidemic of diabetes mellitus, its increasing prevalence and growing burden, as well as its socio-economic and healthcare impact. It also intended to describe the pattern of diabetes observed in the community of the former Transkei. It is also the intention to highlight possible collaborative areas to counteract the increasing burden of diabetes in South Africa and more specifically in the community around WSU.
- Full Text:
- Date Issued: 2013
Factors that influence warranty costs at Volkswagen South Africa
- Authors: Blignaut, Bevan Hyron
- Date: 2013
- Subjects: Warranty , Automobile industry and trade -- South Africa , Total quality management , Quality assurance
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8944 , http://hdl.handle.net/10948/d1013088
- Description: Driving a vehicle while it is within the warranty period provide customers with assurance that should a failure occur on the vehicle, there would be no financial obligation for the customer to repair the vehicle. For the manufacturer, it is a huge financial obligation to repair or replace components that fail on the vehicle. The research conducted in this study explores and identifies the main reasons for high warranty costs as well as the reasons that do not influence high warranty costs at VWSA. The purpose of this research is to provide VWSA with a potential starting point to reduce warranty costs and increase profits. The study revealed that the main cause of high warranty costs at VWSA was related to the quality of vehicles. By improving the quality of vehicles produced, VWSA could reduce a significant portion of the warranty costs it spends each year. With reduced warranty costs, VWSA could increase the warranty period and thereby attract more customers to purchase VW products. In a cutthroat automotive industry, this would ensure a competitive advantage over rivals; maintain longevity, increase profits and continued success.
- Full Text:
- Date Issued: 2013
- Authors: Blignaut, Bevan Hyron
- Date: 2013
- Subjects: Warranty , Automobile industry and trade -- South Africa , Total quality management , Quality assurance
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8944 , http://hdl.handle.net/10948/d1013088
- Description: Driving a vehicle while it is within the warranty period provide customers with assurance that should a failure occur on the vehicle, there would be no financial obligation for the customer to repair the vehicle. For the manufacturer, it is a huge financial obligation to repair or replace components that fail on the vehicle. The research conducted in this study explores and identifies the main reasons for high warranty costs as well as the reasons that do not influence high warranty costs at VWSA. The purpose of this research is to provide VWSA with a potential starting point to reduce warranty costs and increase profits. The study revealed that the main cause of high warranty costs at VWSA was related to the quality of vehicles. By improving the quality of vehicles produced, VWSA could reduce a significant portion of the warranty costs it spends each year. With reduced warranty costs, VWSA could increase the warranty period and thereby attract more customers to purchase VW products. In a cutthroat automotive industry, this would ensure a competitive advantage over rivals; maintain longevity, increase profits and continued success.
- Full Text:
- Date Issued: 2013
Profiling for volatile compounds in the Kgalagadi desert truffle
- Authors: Bogopa, Juda
- Date: 2013
- Subjects: Desert plants -- Botswana -- Kgalagadi District Supercritical fluid extraction Gas chromatography Mass spectrometry Tuberaceae -- Analysis -- Botswana -- Kgalagadi District Truffles -- Analysis -- Botswana -- Kgalagadi District
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4280 , http://hdl.handle.net/10962/d1002006
- Description: The thesis focuses on ‘green’ sample preparation techniques that utilise minimal or no organic solvents thereby producing negligible volumes of organic waste, to ensure safety both to user and the environment. Volatile compounds were extracted and pre-concentrated from Kgalagadi desert truffles (kalaharituber) by headspace solid phase microextraction (HSSPME) and supercritical fluid extraction (SFE). PHWE was employed for the extraction of amino acids and fatty acids. Subsequent analysis of volatile compounds was carried out by gas chromatography coupled with mass spectrometry. Four types of HS-SPME fibers (PDMS 100 μm, PDMS 7 μm, Polyacrylate 85 μm, CAR/DVB/PDMS 50/30 μm) were evaluated. A total of 24 volatile compounds with a molecular weight range from 110 to 354, the most prominent peak being 2-t-Butyl-2,3-dimethyl-3-buten-1-ol (C₁₀H₂₀O, MW 156) were detected after sampling with a PDMS 100 μm fiber. Less volatile compounds were detected after SFE with CO2. A total of 16 amino acids were identified while 17 fatty acids (MW from 132.12 to 367.49) were also identified. The characteristic profile of the Kgalagadi desert truffle was found to contain mainly fatty acid methyl esters and unsaturated aliphatic hydrocarbons. The most prominent compound peaks identified were; 2-t-butyl-2,3-dimethyl- 3-buten-1-ol, disulfide, ethyl benzoic acid 2-4-dhydroxy-3,6-dimethyl-methyl ester, 8,11- octadecanoic acid methyl ester, benzoic acid, 2,4-dihydroxy-3,6-dimethyl-methyl ester, isoquinoline, 1 butyl-3,4-dihydro and 3-heptanone, 6 methyl. Optimization results indicated that fresh slices from the heart of truffles were the best to use for HS-SPME-GCMS volatile compound analysis as they showed a higher sensitivity
- Full Text:
- Date Issued: 2013
- Authors: Bogopa, Juda
- Date: 2013
- Subjects: Desert plants -- Botswana -- Kgalagadi District Supercritical fluid extraction Gas chromatography Mass spectrometry Tuberaceae -- Analysis -- Botswana -- Kgalagadi District Truffles -- Analysis -- Botswana -- Kgalagadi District
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4280 , http://hdl.handle.net/10962/d1002006
- Description: The thesis focuses on ‘green’ sample preparation techniques that utilise minimal or no organic solvents thereby producing negligible volumes of organic waste, to ensure safety both to user and the environment. Volatile compounds were extracted and pre-concentrated from Kgalagadi desert truffles (kalaharituber) by headspace solid phase microextraction (HSSPME) and supercritical fluid extraction (SFE). PHWE was employed for the extraction of amino acids and fatty acids. Subsequent analysis of volatile compounds was carried out by gas chromatography coupled with mass spectrometry. Four types of HS-SPME fibers (PDMS 100 μm, PDMS 7 μm, Polyacrylate 85 μm, CAR/DVB/PDMS 50/30 μm) were evaluated. A total of 24 volatile compounds with a molecular weight range from 110 to 354, the most prominent peak being 2-t-Butyl-2,3-dimethyl-3-buten-1-ol (C₁₀H₂₀O, MW 156) were detected after sampling with a PDMS 100 μm fiber. Less volatile compounds were detected after SFE with CO2. A total of 16 amino acids were identified while 17 fatty acids (MW from 132.12 to 367.49) were also identified. The characteristic profile of the Kgalagadi desert truffle was found to contain mainly fatty acid methyl esters and unsaturated aliphatic hydrocarbons. The most prominent compound peaks identified were; 2-t-butyl-2,3-dimethyl- 3-buten-1-ol, disulfide, ethyl benzoic acid 2-4-dhydroxy-3,6-dimethyl-methyl ester, 8,11- octadecanoic acid methyl ester, benzoic acid, 2,4-dihydroxy-3,6-dimethyl-methyl ester, isoquinoline, 1 butyl-3,4-dihydro and 3-heptanone, 6 methyl. Optimization results indicated that fresh slices from the heart of truffles were the best to use for HS-SPME-GCMS volatile compound analysis as they showed a higher sensitivity
- Full Text:
- Date Issued: 2013
The role of traditional leaders in enhancing service delivery in Mbhashe Local Municipality
- Authors: Bokwe, Abel Zingisa
- Date: 2013
- Subjects: Tribal government -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Chiefdoms -- Africa, Southern , Municipal services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8262 , http://hdl.handle.net/10948/d1013104
- Description: This study investigates the role of traditional leaders in enhancing service delivery in Mbhashe Local Municipality. The aim is to examine the involvement of traditional leaders in the provision of services to traditional communities. To achieve this goal, it was necessary to review literature on traditional leadership to advance an argument that by utilising the existing channels of communication such as traditional councils, government programmes could be more efficiently advertised. A secondary objective was to examine the relationship between traditional leaders and democratically elected councillors in the delivery of services. The problem in Mbhashe Local Municipality is that traditional leaders and the democratically elected leaders do not work together for service delivery. In order to address this problem, face-to-face interviews were conducted with the identified sample and conclusions drawn from their responses. The research revealed that if properly utilised and capacitated traditional leaders can indeed play a pivotal role in the enhancement of service delivery in Mbhashe Local Municipal area and in South Africa as whole.
- Full Text:
- Date Issued: 2013
- Authors: Bokwe, Abel Zingisa
- Date: 2013
- Subjects: Tribal government -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Chiefdoms -- Africa, Southern , Municipal services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8262 , http://hdl.handle.net/10948/d1013104
- Description: This study investigates the role of traditional leaders in enhancing service delivery in Mbhashe Local Municipality. The aim is to examine the involvement of traditional leaders in the provision of services to traditional communities. To achieve this goal, it was necessary to review literature on traditional leadership to advance an argument that by utilising the existing channels of communication such as traditional councils, government programmes could be more efficiently advertised. A secondary objective was to examine the relationship between traditional leaders and democratically elected councillors in the delivery of services. The problem in Mbhashe Local Municipality is that traditional leaders and the democratically elected leaders do not work together for service delivery. In order to address this problem, face-to-face interviews were conducted with the identified sample and conclusions drawn from their responses. The research revealed that if properly utilised and capacitated traditional leaders can indeed play a pivotal role in the enhancement of service delivery in Mbhashe Local Municipal area and in South Africa as whole.
- Full Text:
- Date Issued: 2013
An investigation into social exclusion in the implementation of social grants: the case study of the child support grant in the Nkonkobe local municipality (Eastern Cape)
- Authors: Boniswa, Mashibini
- Date: 2013
- Subjects: National Congress -- Child Support Grant -- Eastern Cape Province , Means-testing -- Nkonkobe municipality -- Poverty , Social exclusion -- Social Security -- South African Social Security Agency
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11737 , http://hdl.handle.net/10353/d1018220 , National Congress -- Child Support Grant -- Eastern Cape Province , Means-testing -- Nkonkobe municipality -- Poverty , Social exclusion -- Social Security -- South African Social Security Agency
- Description: South Africa is faced by a huge problem of inequality, twenty years after the dawn of independence. Such inequalities have been addressed by policy intervention such as the social security and assistance of citizens through various classes of grants. One of the grants targeting children under the age of 18 years is the child support grant. However there are deserving children who have been left-out of mainstream social security through social exclusion. The study sought to investigate the problem of the social exclusion of children from the child support grant in the Nkonkobe municipality. Through the use of the Basic Needs Approach (BNA) to understand the need for any state/government to promote the social welfare of its citizens, the study took a triangulated research paradigm which used both quantitative and qualitative research approaches to collect data from forty respondents by way of a questionnaire survey. The study found out that, inter alia, poverty remains high in the Nkonkobe municipal area, there is rampant social exclusion in the area, the amount paid for the child support grant is little and that the effects of the withdrawal of the grant when the child reaches the age of 18 are unbearable to the child. Some of the recommendations which the study made in line with improved mainstream social security in relation to the child support grant are that, the government needs to improve information dissemination about grants to the populace, there should be mandatory policies to make sure all citizens have identification particulars, the government should be mobile and take services to the people and there should a consideration to review the amount paid for the child support grant upwards. The researcher is quite optimistic that the study will play a part in improving policy implementation.
- Full Text:
- Date Issued: 2013
- Authors: Boniswa, Mashibini
- Date: 2013
- Subjects: National Congress -- Child Support Grant -- Eastern Cape Province , Means-testing -- Nkonkobe municipality -- Poverty , Social exclusion -- Social Security -- South African Social Security Agency
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11737 , http://hdl.handle.net/10353/d1018220 , National Congress -- Child Support Grant -- Eastern Cape Province , Means-testing -- Nkonkobe municipality -- Poverty , Social exclusion -- Social Security -- South African Social Security Agency
- Description: South Africa is faced by a huge problem of inequality, twenty years after the dawn of independence. Such inequalities have been addressed by policy intervention such as the social security and assistance of citizens through various classes of grants. One of the grants targeting children under the age of 18 years is the child support grant. However there are deserving children who have been left-out of mainstream social security through social exclusion. The study sought to investigate the problem of the social exclusion of children from the child support grant in the Nkonkobe municipality. Through the use of the Basic Needs Approach (BNA) to understand the need for any state/government to promote the social welfare of its citizens, the study took a triangulated research paradigm which used both quantitative and qualitative research approaches to collect data from forty respondents by way of a questionnaire survey. The study found out that, inter alia, poverty remains high in the Nkonkobe municipal area, there is rampant social exclusion in the area, the amount paid for the child support grant is little and that the effects of the withdrawal of the grant when the child reaches the age of 18 are unbearable to the child. Some of the recommendations which the study made in line with improved mainstream social security in relation to the child support grant are that, the government needs to improve information dissemination about grants to the populace, there should be mandatory policies to make sure all citizens have identification particulars, the government should be mobile and take services to the people and there should a consideration to review the amount paid for the child support grant upwards. The researcher is quite optimistic that the study will play a part in improving policy implementation.
- Full Text:
- Date Issued: 2013