Graphite: origin, deposits and economics : an exploration study of the Orom Graphite project
- Van den Berg, Jacobus Petrus
- Authors: Van den Berg, Jacobus Petrus
- Date: 2018
- Subjects: Graphite , Ore deposits , Geophysics , Graphite mines and mining Economic aspects Africa, East , Trenches , Project management
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/63786 , vital:28489
- Description: Developing exploration projects successfully requires that the Reasonable Prospects for Eventual Economic Extraction (RPEEE) be confirmed and based on the global market perception and trend. The exploration methods applied in the attempt to establish this RPEEE must be based on a key management framework that assures the results, and eventually the conclusion, are obtained with best practical and technical approaches whilst managing the risks and capitalizing on each result. The Orom Graphite project is located within the East African Orogenic belt, a suture zone between the Congo craton and the SLAMIN shield, formed during the formation of Gondwana during the late Proterozoic to early-Phanerozoic era. The closing of the Mozambique ocean, and the eventual collision between the craton and shield, occurred along the paleo-earths equator and migrated towards lower latitudes. This, along with the period’s biodiversity boom, provided the perfect deposition environment for carbonaceous sediments which were later metamorphosed to amphibolite and granulites grade metamorphism, resulting in the carbonization and the eventual graphitization of these carbonaceous sediments. The project is located within a poorly developed part of Uganda with the closest port situated some 1 500 km to the east in Kenya. The poorly developed infrastructure along with probable high logistical cost assigns a low competitivity index if compared to the economic costs of peer projects. However, the potential resources of the Orom Graphite project suggest that the Life of Mine (LOM) can rival the largest resource currently reported within the market. The current market conditions suggest that a possible oversupply of graphite concentrate will dominate the market within the next 4 to 10 years. This suggests that new graphite projects such as the Orom Graphite project are likely to develop into the production phase once the global supply and demand stabilize. This requires the Orom Graphite project to develop from its current scoping study level to a project development study level associated with a definitive feasibility study. To date, the project developed through mapping, reconnaissance drilling, geophysical survey and trenching programs increasing the Net Present Value (NPV) considerably based upon a Cost-Based Valuation approach using Prospectivity Enhancement Multiplier (PEM). The metallurgical studies could however not produce a graphite concentrate product within industrial grade standards. The risk associated with developing the project further into the Mineral Resource Estimation (MRE) phase was quantified and risk was evaluated by implementing a point decision tree and calculating the Expected Monetary Value (EMV). Due to the unfavourable metallurgical results obtained to date, the risk associated with undertaking an additional metallurgical test is considerable with a slight chance of producing a negative project value estimated at 65%. JP van den Berg Rhodes University Overall, the Orom Graphite project contains favourable geological formations with a potential large resource. Market trends indicate that a considerable resource is currently being developed and can supply the global market for the next 4 to 10 years. The project’s location within a landlocked country decreases its economic competitiveness with peer project and the unfavourable, but not conclusive, metallurgical results obtained during the scoping phase do not instil confidence that the project will develop into a productive mine soon. Managing the project development with future graphite demand in mind is the key to determining whether the project still has future value.
- Full Text:
- Date Issued: 2018
- Authors: Van den Berg, Jacobus Petrus
- Date: 2018
- Subjects: Graphite , Ore deposits , Geophysics , Graphite mines and mining Economic aspects Africa, East , Trenches , Project management
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/63786 , vital:28489
- Description: Developing exploration projects successfully requires that the Reasonable Prospects for Eventual Economic Extraction (RPEEE) be confirmed and based on the global market perception and trend. The exploration methods applied in the attempt to establish this RPEEE must be based on a key management framework that assures the results, and eventually the conclusion, are obtained with best practical and technical approaches whilst managing the risks and capitalizing on each result. The Orom Graphite project is located within the East African Orogenic belt, a suture zone between the Congo craton and the SLAMIN shield, formed during the formation of Gondwana during the late Proterozoic to early-Phanerozoic era. The closing of the Mozambique ocean, and the eventual collision between the craton and shield, occurred along the paleo-earths equator and migrated towards lower latitudes. This, along with the period’s biodiversity boom, provided the perfect deposition environment for carbonaceous sediments which were later metamorphosed to amphibolite and granulites grade metamorphism, resulting in the carbonization and the eventual graphitization of these carbonaceous sediments. The project is located within a poorly developed part of Uganda with the closest port situated some 1 500 km to the east in Kenya. The poorly developed infrastructure along with probable high logistical cost assigns a low competitivity index if compared to the economic costs of peer projects. However, the potential resources of the Orom Graphite project suggest that the Life of Mine (LOM) can rival the largest resource currently reported within the market. The current market conditions suggest that a possible oversupply of graphite concentrate will dominate the market within the next 4 to 10 years. This suggests that new graphite projects such as the Orom Graphite project are likely to develop into the production phase once the global supply and demand stabilize. This requires the Orom Graphite project to develop from its current scoping study level to a project development study level associated with a definitive feasibility study. To date, the project developed through mapping, reconnaissance drilling, geophysical survey and trenching programs increasing the Net Present Value (NPV) considerably based upon a Cost-Based Valuation approach using Prospectivity Enhancement Multiplier (PEM). The metallurgical studies could however not produce a graphite concentrate product within industrial grade standards. The risk associated with developing the project further into the Mineral Resource Estimation (MRE) phase was quantified and risk was evaluated by implementing a point decision tree and calculating the Expected Monetary Value (EMV). Due to the unfavourable metallurgical results obtained to date, the risk associated with undertaking an additional metallurgical test is considerable with a slight chance of producing a negative project value estimated at 65%. JP van den Berg Rhodes University Overall, the Orom Graphite project contains favourable geological formations with a potential large resource. Market trends indicate that a considerable resource is currently being developed and can supply the global market for the next 4 to 10 years. The project’s location within a landlocked country decreases its economic competitiveness with peer project and the unfavourable, but not conclusive, metallurgical results obtained during the scoping phase do not instil confidence that the project will develop into a productive mine soon. Managing the project development with future graphite demand in mind is the key to determining whether the project still has future value.
- Full Text:
- Date Issued: 2018
Special section on urbanisation and ecosystem services in sub-Saharan Africa: Current status and scenarios
- Pauleit, Stephan, Lindley, Sarah, Lotz-Sisitka, Heila, Shackleton, Charlie M
- Authors: Pauleit, Stephan , Lindley, Sarah , Lotz-Sisitka, Heila , Shackleton, Charlie M
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/183082 , vital:43910 , xlink:href="https://doi.org/10.1016/j.landurbplan.2018.09.008"
- Description: The African continent is facing unprecedented population growth in the 21st century. Most of this growth will be absorbed by urban areas where the overall population is projected to triple from presently appr. 400 people to 1.3 billion people in 2050 (UN-Habitat, 2014). In sub-Saharan Africa, which is the focus of this Special Issue, not only the number of megacities with more than 10 million such as Lagos will rise, but smaller or medium sized cities will attract most of this growth (UN-Habitat, 2014). The majority of this increase is taking place in the form of informal settlements where people are living in poverty and where basic facilities and services such as a secure supply of clean drinking water and safe waste water disposal are missing.
- Full Text:
- Date Issued: 2018
- Authors: Pauleit, Stephan , Lindley, Sarah , Lotz-Sisitka, Heila , Shackleton, Charlie M
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/183082 , vital:43910 , xlink:href="https://doi.org/10.1016/j.landurbplan.2018.09.008"
- Description: The African continent is facing unprecedented population growth in the 21st century. Most of this growth will be absorbed by urban areas where the overall population is projected to triple from presently appr. 400 people to 1.3 billion people in 2050 (UN-Habitat, 2014). In sub-Saharan Africa, which is the focus of this Special Issue, not only the number of megacities with more than 10 million such as Lagos will rise, but smaller or medium sized cities will attract most of this growth (UN-Habitat, 2014). The majority of this increase is taking place in the form of informal settlements where people are living in poverty and where basic facilities and services such as a secure supply of clean drinking water and safe waste water disposal are missing.
- Full Text:
- Date Issued: 2018
An analysis of the implementation of the Teaching Development Grant in the South African Higher Education Sector
- Authors: Moyo, Mtheto Temwa
- Date: 2018
- Subjects: Education, Higher -- Aims and objectives -- South Africa , Government aid to higher education -- South Africa , Education, Higher -- South Africa -- Evaluation , Education, Higher -- Social aspects -- South Africa , Educational leadership -- South Africa , Educational equalization -- South Africa , Education, Higher -- Economic aspects -- South Africa , Teaching Development Grant (South Africa)
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/62225 , vital:28141
- Description: The South African government has attempted to address various transformation and efficiency challenges in the system through the steering mechanisms at its disposal. This study analyses the implementation of one of these mechanisms, the Teaching Development Grant (TDG), which is designed to enhance student learning through the improvement of teaching and teaching resources at South African universities. Since the inception as an earmarked grant ten years ago, a total of R5.5 billion has been allocated for the TDG. The study thus sought to answer the question: What are the factors enabling and constraining the use of the TDG to enhance teaching and student success at South African universities? A total of 275 TDG progress reports and budget plans were analysed alongside other TDG documentation such as TDG payment letters to universities and institutional submissions that universities made on the use of the TDG for the 2008 TDG Review. The TDG criteria and policy over the years were also included as data. The analysis used Archer’s (1995; 1996) morphogenesis/stasis framework, which is concerned with how change does or does not happen over time. Archer’s analytical dualism was used to identify the interplay of structural, cultural and agential mechanisms shaping the emergence of and practices associated with TDGs in order to make sense of the events and experiences in the data. One of the main findings of the study was that the historically-based differentiated nature of the South African higher education landscape constrained the implementation of the TDG. The stark resource differences in the sector has meant that the TDG has not fully translated into system-wide gains. In the initial years of TDG implementation from 2004 to 2013, most institutions did not use the TDG for teaching development initiatives per se, but rather spent the bulk of the funds on infrastructure and equipment. Such resource gaps have persisted and continue to compromise the academic enterprise at affected universities. The data also showed that universities which have access to additional funding other than state funding have been able to augment and advance their own funds and were thus able to at least partially counter late payments of the TDG, fluctuations in allocations, and the short-term nature of TDG budgets and inadequate allocations. This enabled relatively straightforward implementation of the teaching and learning enhancement programmes at these universities, while there were ongoing implementation difficulties at the universities with the lowest success rates, the very institutions the grant was most targeted to address. The study showed that the shortage of appropriate teaching and learning staff constrained the nature and type of interventions. Historically Disadvantaged Institutions in particular struggled to attract and retain the much-needed expertise. This emerged from multiple structural constraints such as geographical location, conditions of work, inefficient human resources systems, lack of access to financial resources for competitive packages, and instability in governance and management structures at some universities. Emerging from the data in the study is the fact that staffing challenges remain one of the core constraints in the implementation of the TDG. In particular, the data indicated that teaching and learning staff hired on the basis of TDG funds were generally hired as part-time or contract staff. This meant that their academic qualifications and experience in teaching development were limited and, in many cases, it meant that the posts were not filled at all. In some cases, the fluctuating budgets meant that some projects had to be downscaled or abandoned altogether. The study found that many of the interventions that were implemented had tenuous links to teaching and learning and, even where there were such links, these interventions were often based on fairly a-theoretical, common-sense understandings of what would develop teaching. In many universities, there was little evidence of institution-level planning of interventions aimed at fundamentally addressing the need for teaching development. The limited access to teaching and learning expertise across the sector was mirrored in the uneven distribution of expertise in administration, financial management, institutional planning and human resource divisions, which had implications for the establishment of monitoring systems and implementation processes of the TDG. The lack of strong systems and policies encouraged cultures that did not value transparency, accountability or compliance to the TDG policy. The role of corporate agency in the form of leadership and ownership of projects emerged as a key enabler in the implementation of the TDG. All of these structures shaped the ability of institutions to spend the TDG and in some cases millions of Rands in funds were not spent and so were withheld. The study found that the inability of some universities to spend was exacerbated by the problem of a lack of alignment between the DHET financial year and the academic year. Although the TDG has made a notable contribution to the advancement of teaching and learning (T&L) nationally, this study revealed that the blunt implementation of the TDG across the sector constrained the gains. In particular, the practice of withholding unspent funds focused only on the symptoms of underspending and not on the structural, cultural and agential mechanisms that led to such under-expenditure. The withheld funds were redirected by the government for national projects but as all universities including the well-resourced Historically Advantaged Institutions (HAIs) had access to these withheld funds this translated into a regressive distribution of the TDG. Limited capacity within DHET to direct, manage and monitor the grants has also had a constraining effect on their use and the secondment of a teaching and learning expert to the department was seen to be a significant but short-term enablement in this regard. The findings of how the TDG implementation has emerged in the South African higher education sector are particularly important at this point in time as the TDG together with the Research Development Grant will be reconfigured into a new grant called the University Capacity Development Grant as from 2018. This study provides significant insights into the structural, cultural, and agential enablements and constraints of this new grant being able to drive changes in the sector. The findings also provide insights into the implementation of other earmarked grants. , Boma la South Africa layesera kuthetsa mavuto omwe amadza posintha ndi kulongosola zinthu kudzera mu njira zosiyanasiyana. Kafukufukuyu akuunikira imodzi mwa njirazi yotchedwa Teaching Development Grant (TDG) yomwe inakonzedwa polimbikitsa maphunziro kudzera mukagwiritsidwe ntchito ka zipangizo zophunzitsira ndi zophunzirira za makono m’sukulu za ukachenjede ku South Africa. Ndalama zapafupifupi R5.5 billion ndi zomwe zaperekedwa kuti zigwiritsidwe nchito mu ndondomekoyi kuchokera pa nthawi yomwe inakhazikitsidwa; zaka khumi zapitazo. Kafukufukuyu anayesera kuyankha funso loti: Ndi zinthu ziti zomwe zimalimbikitsa kapena kubwezeretsa m’mbuyo kagwiritsidwe ntchito ka (TDG) polimbikitsa kuchita bwino kwa aphunzitsi ndi ophunzira m’sukulu za ukachenjede? Zikalata zosonyeza makhonzedwe a ophunzira, ndondomeko za kayendetseredwe ka chuma, zikalata za malipiridwe ndi zikalata zopezeka m’sukulu zaukachenjedezi zokhudzana ndi njira ya TDG zomwe zakhala zikugwiritsidwa ntchito zaka khumi zapitazi zinatengedwanso ngati uthenga wofunika koposa. Kauniuniyu anatsalira njira yotchedwa ‘Archer’s (1995/1996) Morphogenesis/Status Framework’ yomwe imafotokozera momwe kusintha kumachitikira pena kulepherekera. Njira younikira ya Archer: yothandizira pofufuza momwe kayendetsedwe ka bungwe, chikhalidwe komanso anthu oyendetsa bungwe amathandizira poonetsera momwe TDG imakhalira inagwiritsidwa ntchito poyesera kumvetsa zochitika komanso zopezeka mu kafukufukuyu. Chimodzi mwa zotsatira za kafukufukuyu n’chakuti kagwiritsidwe ntchito ka TDG kamabwezeredwa m’mbuyo ndi momwe sukulu za ukachenjede ku South Africa zidapangidwira. Kusiyana kwa usiwa wa zipangizo m’sukuluzi kudapangitsa kuti njira ya TDG isaonetse zipatso kwenikweni. Mu zaka zoyambirira itangokhazikidwitsa (2007 - 2013), sukulu zambiri sizidagwiritse ntchito TDG polimbikitsa kaphunzitsidwe. M’malo mwake ndalama zankhaninkhani zidagwiritsidwa ntchito pa zomangamanga ndi kugulira zipangizo. Usiwa wa zipangizowu ulipobe ndipo ukusokoneza mbali ya maphunziro m’sukulu zokhudzidwazi. Kafukufukuyu anasonyezanso kuti sukulu zomwe zimalandira thandizo lowonjezera pa lomwe zimalandira ku boma zakhala zikuyesetsa kuthana ndi vuto lopereka mochedwa ndalama za mundondomeko ya TDG ndi dongosolo la m’mene ndalamazi zigwirire ntchito. Izi zinawachititsa kuti asapeze mavuto ambiri polimbikitsa ndondomeko za kaphunzitsidwe ndi kaphunziridwe pomwe ena amavutika nazo. Enawa n’kukhala sukulu zomwe sizimachita bwino, zomwenso thandizoli lidalunjika pa izo kuti zithandizike. Kafukufukuyu anasonyeza kuti kuchepa kwa aphunzitsi kudapsinja zochitika zokhudza njirayi. Sukulu zosachita bwino kuchokera kalezi zidavutika kupeza ndi kusunga ogwira ntchito ake. Izi zimakhala choncho kaamba ka zifukwa zosiyanasiyana monga komwe sukuluyo ili, malamulo a ntchito, kupanda ukadaulo kwa oyang’anira antchitowa, kutalikirana ndi njira zina zopezera ndalama komanso kusakhazikika kwa anthu m’maudindo. Zina zotulukanso mu mfundo zotoledwazi zinaulula kuti vuto lina lalikulu linali ogwira ntchito. Polimbikitsa njira ya TDG, zimatanthauza kuti aphunzitsi omwe azilembedwa azikhala osakhazikika pa sukuluzi kapena a kontarakiti. Izi zimatanthauza kuti maphunziro ndi luntha lawo zimayenera kukhala zochepera. Mwanjira ina, tikhonza kunena kuti ogwira ntchitoyi panalibe. Nthawi zina, kusinthasintha kwa ndondomeko zachuma madongosolo ena kusiyidwa kapena kuchitika mosalongosoka. Kafukufukuyu anasonyezanso kuti zambiri mwa mfundo zomwe zinayikidwa kuti zigwiritsidwe ntchito zinali zosathandiza kwenikweni polimbikitsa maphunzirowa. Ndipo komwe mfundozi zinakhazikitsidwa, zinali chabe kufotokozera zinthu zodziwika kale ndi kale zokhudza zomwe zingalimbikitse uphunzitsi. M’sukulu zambiri za ukachenjede, pali umboni wochepa wa mfundo zomwe zinaikidwiratu ndi cholinga chopititsa patsogolo uphunzitsiwu. Kusowa kwa ukadaulo pa maphunzirowa kunaonekanso makamaka m’madera monga a oyendetsa sukuluzi, oyang’ana za chuma, olongosola malo onse komanso oyang’anira antchito. Panalibe kugawana anthuwa mofanana. Izi zidakhudza kwambiri kalondolondo ndinso kayendetsedwe ka TDG. Kusowa kwa ndondomeko zabwino ndi malamulo okhazikika kunalimbikitsa chikhalidwe cha chinyengo ndi kusatsatira mfundo za mundondomekoyi popereka utsogoleri ndi umwini ndiye unali wofunika polimbikitsa ndondomekoyi. Madongosolo otere anathandiza kuti sukulu zigwiritse ntchito njira ya TDG ndipo pena ndalama mamiliyoni zibwezedwe. Kafukufukuyu anaonetsa kuti kulephera kwa sukulu zina kugwiritsa ntchito ndalama kunachitika kaamba kosazindikira malire a chaka cha DHET ndi chaka cha maphunziro. Ngakhale njira ya TDG yathandizako kagwiritsidwe ntchito ka zipangizo zophunzitsira ndi zophunzirira, kafukufukuyu wasonyeza kuti mavuto omwe anaoneka mu ndondomeko ya TDG aphimba ubwino wake. Monga, m’chitidwe wobweza ndalama zosagwira ntchito unalunjika pa kulephera kugwiritsa ntchito ndalama zonse osati pa ubale pakati pa kayendetsedwe ka bungwe, chikhalidwe ndinso anthu oyendetsa bungwe. Ndalama zotsarazi zinalowetsedwa ku zitukuko zina ndi boma. Koma poti sukulu zonse za ukachenjede kuphatikizapo HAI zinapeza mwayi wa ndalamazi, izi zimabweretsa kulowa pansi kwa dongosolo la TDG. Kulephera mu DHET kutsogolera, kuyendetsa ndi kulondoloza thandizo kwadzetsanso mavuto pa kagwiritsidwe ntchito kake ngakhalenso kutumizidwa kwa katswiri pa kaphunzitsidwe kunaoneka ngati kofunika kosathandiza kwenikweni chifukwa kudali kwa nthawi yochepa. Zotsatira za kafukufukuyu (zokhudza maphunziro a ukachenjede ku South Africa) ndi zofunika kwambiri makamaka nthawi ino pomwe TDG pamodzi ndi RDG (Research Development Grant) zikhale kuunikiridwanso ndi kupanga thandizo latsopano lotchedwa University Capacity Development Grant kuyambira m’chaka cha 2018. Kafukufukuyu waunika mozama kayendetsedwe, chikhalidwe komanso oyendetsa zithandizo komanso mavuto kuti thandizo latsopanoli likathe kubweretsa kusintha. Zotsatirazi zaunikiranso kayendetsedwe ka zithandizo zina zomwe zikufuna kuchitika.
- Full Text:
- Date Issued: 2018
- Authors: Moyo, Mtheto Temwa
- Date: 2018
- Subjects: Education, Higher -- Aims and objectives -- South Africa , Government aid to higher education -- South Africa , Education, Higher -- South Africa -- Evaluation , Education, Higher -- Social aspects -- South Africa , Educational leadership -- South Africa , Educational equalization -- South Africa , Education, Higher -- Economic aspects -- South Africa , Teaching Development Grant (South Africa)
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/62225 , vital:28141
- Description: The South African government has attempted to address various transformation and efficiency challenges in the system through the steering mechanisms at its disposal. This study analyses the implementation of one of these mechanisms, the Teaching Development Grant (TDG), which is designed to enhance student learning through the improvement of teaching and teaching resources at South African universities. Since the inception as an earmarked grant ten years ago, a total of R5.5 billion has been allocated for the TDG. The study thus sought to answer the question: What are the factors enabling and constraining the use of the TDG to enhance teaching and student success at South African universities? A total of 275 TDG progress reports and budget plans were analysed alongside other TDG documentation such as TDG payment letters to universities and institutional submissions that universities made on the use of the TDG for the 2008 TDG Review. The TDG criteria and policy over the years were also included as data. The analysis used Archer’s (1995; 1996) morphogenesis/stasis framework, which is concerned with how change does or does not happen over time. Archer’s analytical dualism was used to identify the interplay of structural, cultural and agential mechanisms shaping the emergence of and practices associated with TDGs in order to make sense of the events and experiences in the data. One of the main findings of the study was that the historically-based differentiated nature of the South African higher education landscape constrained the implementation of the TDG. The stark resource differences in the sector has meant that the TDG has not fully translated into system-wide gains. In the initial years of TDG implementation from 2004 to 2013, most institutions did not use the TDG for teaching development initiatives per se, but rather spent the bulk of the funds on infrastructure and equipment. Such resource gaps have persisted and continue to compromise the academic enterprise at affected universities. The data also showed that universities which have access to additional funding other than state funding have been able to augment and advance their own funds and were thus able to at least partially counter late payments of the TDG, fluctuations in allocations, and the short-term nature of TDG budgets and inadequate allocations. This enabled relatively straightforward implementation of the teaching and learning enhancement programmes at these universities, while there were ongoing implementation difficulties at the universities with the lowest success rates, the very institutions the grant was most targeted to address. The study showed that the shortage of appropriate teaching and learning staff constrained the nature and type of interventions. Historically Disadvantaged Institutions in particular struggled to attract and retain the much-needed expertise. This emerged from multiple structural constraints such as geographical location, conditions of work, inefficient human resources systems, lack of access to financial resources for competitive packages, and instability in governance and management structures at some universities. Emerging from the data in the study is the fact that staffing challenges remain one of the core constraints in the implementation of the TDG. In particular, the data indicated that teaching and learning staff hired on the basis of TDG funds were generally hired as part-time or contract staff. This meant that their academic qualifications and experience in teaching development were limited and, in many cases, it meant that the posts were not filled at all. In some cases, the fluctuating budgets meant that some projects had to be downscaled or abandoned altogether. The study found that many of the interventions that were implemented had tenuous links to teaching and learning and, even where there were such links, these interventions were often based on fairly a-theoretical, common-sense understandings of what would develop teaching. In many universities, there was little evidence of institution-level planning of interventions aimed at fundamentally addressing the need for teaching development. The limited access to teaching and learning expertise across the sector was mirrored in the uneven distribution of expertise in administration, financial management, institutional planning and human resource divisions, which had implications for the establishment of monitoring systems and implementation processes of the TDG. The lack of strong systems and policies encouraged cultures that did not value transparency, accountability or compliance to the TDG policy. The role of corporate agency in the form of leadership and ownership of projects emerged as a key enabler in the implementation of the TDG. All of these structures shaped the ability of institutions to spend the TDG and in some cases millions of Rands in funds were not spent and so were withheld. The study found that the inability of some universities to spend was exacerbated by the problem of a lack of alignment between the DHET financial year and the academic year. Although the TDG has made a notable contribution to the advancement of teaching and learning (T&L) nationally, this study revealed that the blunt implementation of the TDG across the sector constrained the gains. In particular, the practice of withholding unspent funds focused only on the symptoms of underspending and not on the structural, cultural and agential mechanisms that led to such under-expenditure. The withheld funds were redirected by the government for national projects but as all universities including the well-resourced Historically Advantaged Institutions (HAIs) had access to these withheld funds this translated into a regressive distribution of the TDG. Limited capacity within DHET to direct, manage and monitor the grants has also had a constraining effect on their use and the secondment of a teaching and learning expert to the department was seen to be a significant but short-term enablement in this regard. The findings of how the TDG implementation has emerged in the South African higher education sector are particularly important at this point in time as the TDG together with the Research Development Grant will be reconfigured into a new grant called the University Capacity Development Grant as from 2018. This study provides significant insights into the structural, cultural, and agential enablements and constraints of this new grant being able to drive changes in the sector. The findings also provide insights into the implementation of other earmarked grants. , Boma la South Africa layesera kuthetsa mavuto omwe amadza posintha ndi kulongosola zinthu kudzera mu njira zosiyanasiyana. Kafukufukuyu akuunikira imodzi mwa njirazi yotchedwa Teaching Development Grant (TDG) yomwe inakonzedwa polimbikitsa maphunziro kudzera mukagwiritsidwe ntchito ka zipangizo zophunzitsira ndi zophunzirira za makono m’sukulu za ukachenjede ku South Africa. Ndalama zapafupifupi R5.5 billion ndi zomwe zaperekedwa kuti zigwiritsidwe nchito mu ndondomekoyi kuchokera pa nthawi yomwe inakhazikitsidwa; zaka khumi zapitazo. Kafukufukuyu anayesera kuyankha funso loti: Ndi zinthu ziti zomwe zimalimbikitsa kapena kubwezeretsa m’mbuyo kagwiritsidwe ntchito ka (TDG) polimbikitsa kuchita bwino kwa aphunzitsi ndi ophunzira m’sukulu za ukachenjede? Zikalata zosonyeza makhonzedwe a ophunzira, ndondomeko za kayendetseredwe ka chuma, zikalata za malipiridwe ndi zikalata zopezeka m’sukulu zaukachenjedezi zokhudzana ndi njira ya TDG zomwe zakhala zikugwiritsidwa ntchito zaka khumi zapitazi zinatengedwanso ngati uthenga wofunika koposa. Kauniuniyu anatsalira njira yotchedwa ‘Archer’s (1995/1996) Morphogenesis/Status Framework’ yomwe imafotokozera momwe kusintha kumachitikira pena kulepherekera. Njira younikira ya Archer: yothandizira pofufuza momwe kayendetsedwe ka bungwe, chikhalidwe komanso anthu oyendetsa bungwe amathandizira poonetsera momwe TDG imakhalira inagwiritsidwa ntchito poyesera kumvetsa zochitika komanso zopezeka mu kafukufukuyu. Chimodzi mwa zotsatira za kafukufukuyu n’chakuti kagwiritsidwe ntchito ka TDG kamabwezeredwa m’mbuyo ndi momwe sukulu za ukachenjede ku South Africa zidapangidwira. Kusiyana kwa usiwa wa zipangizo m’sukuluzi kudapangitsa kuti njira ya TDG isaonetse zipatso kwenikweni. Mu zaka zoyambirira itangokhazikidwitsa (2007 - 2013), sukulu zambiri sizidagwiritse ntchito TDG polimbikitsa kaphunzitsidwe. M’malo mwake ndalama zankhaninkhani zidagwiritsidwa ntchito pa zomangamanga ndi kugulira zipangizo. Usiwa wa zipangizowu ulipobe ndipo ukusokoneza mbali ya maphunziro m’sukulu zokhudzidwazi. Kafukufukuyu anasonyezanso kuti sukulu zomwe zimalandira thandizo lowonjezera pa lomwe zimalandira ku boma zakhala zikuyesetsa kuthana ndi vuto lopereka mochedwa ndalama za mundondomeko ya TDG ndi dongosolo la m’mene ndalamazi zigwirire ntchito. Izi zinawachititsa kuti asapeze mavuto ambiri polimbikitsa ndondomeko za kaphunzitsidwe ndi kaphunziridwe pomwe ena amavutika nazo. Enawa n’kukhala sukulu zomwe sizimachita bwino, zomwenso thandizoli lidalunjika pa izo kuti zithandizike. Kafukufukuyu anasonyeza kuti kuchepa kwa aphunzitsi kudapsinja zochitika zokhudza njirayi. Sukulu zosachita bwino kuchokera kalezi zidavutika kupeza ndi kusunga ogwira ntchito ake. Izi zimakhala choncho kaamba ka zifukwa zosiyanasiyana monga komwe sukuluyo ili, malamulo a ntchito, kupanda ukadaulo kwa oyang’anira antchitowa, kutalikirana ndi njira zina zopezera ndalama komanso kusakhazikika kwa anthu m’maudindo. Zina zotulukanso mu mfundo zotoledwazi zinaulula kuti vuto lina lalikulu linali ogwira ntchito. Polimbikitsa njira ya TDG, zimatanthauza kuti aphunzitsi omwe azilembedwa azikhala osakhazikika pa sukuluzi kapena a kontarakiti. Izi zimatanthauza kuti maphunziro ndi luntha lawo zimayenera kukhala zochepera. Mwanjira ina, tikhonza kunena kuti ogwira ntchitoyi panalibe. Nthawi zina, kusinthasintha kwa ndondomeko zachuma madongosolo ena kusiyidwa kapena kuchitika mosalongosoka. Kafukufukuyu anasonyezanso kuti zambiri mwa mfundo zomwe zinayikidwa kuti zigwiritsidwe ntchito zinali zosathandiza kwenikweni polimbikitsa maphunzirowa. Ndipo komwe mfundozi zinakhazikitsidwa, zinali chabe kufotokozera zinthu zodziwika kale ndi kale zokhudza zomwe zingalimbikitse uphunzitsi. M’sukulu zambiri za ukachenjede, pali umboni wochepa wa mfundo zomwe zinaikidwiratu ndi cholinga chopititsa patsogolo uphunzitsiwu. Kusowa kwa ukadaulo pa maphunzirowa kunaonekanso makamaka m’madera monga a oyendetsa sukuluzi, oyang’ana za chuma, olongosola malo onse komanso oyang’anira antchito. Panalibe kugawana anthuwa mofanana. Izi zidakhudza kwambiri kalondolondo ndinso kayendetsedwe ka TDG. Kusowa kwa ndondomeko zabwino ndi malamulo okhazikika kunalimbikitsa chikhalidwe cha chinyengo ndi kusatsatira mfundo za mundondomekoyi popereka utsogoleri ndi umwini ndiye unali wofunika polimbikitsa ndondomekoyi. Madongosolo otere anathandiza kuti sukulu zigwiritse ntchito njira ya TDG ndipo pena ndalama mamiliyoni zibwezedwe. Kafukufukuyu anaonetsa kuti kulephera kwa sukulu zina kugwiritsa ntchito ndalama kunachitika kaamba kosazindikira malire a chaka cha DHET ndi chaka cha maphunziro. Ngakhale njira ya TDG yathandizako kagwiritsidwe ntchito ka zipangizo zophunzitsira ndi zophunzirira, kafukufukuyu wasonyeza kuti mavuto omwe anaoneka mu ndondomeko ya TDG aphimba ubwino wake. Monga, m’chitidwe wobweza ndalama zosagwira ntchito unalunjika pa kulephera kugwiritsa ntchito ndalama zonse osati pa ubale pakati pa kayendetsedwe ka bungwe, chikhalidwe ndinso anthu oyendetsa bungwe. Ndalama zotsarazi zinalowetsedwa ku zitukuko zina ndi boma. Koma poti sukulu zonse za ukachenjede kuphatikizapo HAI zinapeza mwayi wa ndalamazi, izi zimabweretsa kulowa pansi kwa dongosolo la TDG. Kulephera mu DHET kutsogolera, kuyendetsa ndi kulondoloza thandizo kwadzetsanso mavuto pa kagwiritsidwe ntchito kake ngakhalenso kutumizidwa kwa katswiri pa kaphunzitsidwe kunaoneka ngati kofunika kosathandiza kwenikweni chifukwa kudali kwa nthawi yochepa. Zotsatira za kafukufukuyu (zokhudza maphunziro a ukachenjede ku South Africa) ndi zofunika kwambiri makamaka nthawi ino pomwe TDG pamodzi ndi RDG (Research Development Grant) zikhale kuunikiridwanso ndi kupanga thandizo latsopano lotchedwa University Capacity Development Grant kuyambira m’chaka cha 2018. Kafukufukuyu waunika mozama kayendetsedwe, chikhalidwe komanso oyendetsa zithandizo komanso mavuto kuti thandizo latsopanoli likathe kubweretsa kusintha. Zotsatirazi zaunikiranso kayendetsedwe ka zithandizo zina zomwe zikufuna kuchitika.
- Full Text:
- Date Issued: 2018
Strength and conditioning practices of high school rugby coaches: a South African context
- Authors: Robinson, Bradley Charles
- Date: 2018
- Subjects: Rugby football coaches South Africa , Rugby football Coaching , Rugby football Physiological aspects , Rugby football Training , High school students Social conditions
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/63459 , vital:28413
- Description: Although the sport of rugby union is well established, the strength and conditioning practices of high school level players are not well known. Therefore, the purpose of this study was to examine the current strength and conditioning practices that coaches implement at South African high school level rugby. A secondary purpose was to compare practices between different types of schooling systems available in South Africa. An online survey or in person interview (depending on the school), adapted from previous strength and conditioning questionnaires, was conducted with 43 responses; including 28 schools among the top 100 rugby schools in South Africa for 2016 and 15 no-fee paying public schools in the Eastern Cape Province of South Africa. Results indicated that the top 100 rugby schools implement conditioning practices similar to the best-known international practices compared to no-fee paying schools who lacked the knowledge and skills in various strength and conditioning principles. It was found that all no-fee paying school coaches had insufficient qualifications to administer the correct training techniques. Coaches at all schools lacked the appropriate knowledge on injury prevention and scientifically based training programmes. It was concluded that education and skills around the best strength and conditioning practices for school level coaches needs to be improved and particularly in less privileged schools. The main goal being to reduce the risk of injury and improve performance across all sectors of the rugby playing population within the country. This was deemed crucial to the transformation goals set out by the South African Rugby Union, which would benefit from player development in lower socioeconomic schools.
- Full Text:
- Date Issued: 2018
- Authors: Robinson, Bradley Charles
- Date: 2018
- Subjects: Rugby football coaches South Africa , Rugby football Coaching , Rugby football Physiological aspects , Rugby football Training , High school students Social conditions
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/63459 , vital:28413
- Description: Although the sport of rugby union is well established, the strength and conditioning practices of high school level players are not well known. Therefore, the purpose of this study was to examine the current strength and conditioning practices that coaches implement at South African high school level rugby. A secondary purpose was to compare practices between different types of schooling systems available in South Africa. An online survey or in person interview (depending on the school), adapted from previous strength and conditioning questionnaires, was conducted with 43 responses; including 28 schools among the top 100 rugby schools in South Africa for 2016 and 15 no-fee paying public schools in the Eastern Cape Province of South Africa. Results indicated that the top 100 rugby schools implement conditioning practices similar to the best-known international practices compared to no-fee paying schools who lacked the knowledge and skills in various strength and conditioning principles. It was found that all no-fee paying school coaches had insufficient qualifications to administer the correct training techniques. Coaches at all schools lacked the appropriate knowledge on injury prevention and scientifically based training programmes. It was concluded that education and skills around the best strength and conditioning practices for school level coaches needs to be improved and particularly in less privileged schools. The main goal being to reduce the risk of injury and improve performance across all sectors of the rugby playing population within the country. This was deemed crucial to the transformation goals set out by the South African Rugby Union, which would benefit from player development in lower socioeconomic schools.
- Full Text:
- Date Issued: 2018
The potential use of natural resources in urban informal settlements as substitutes for financial capital during flooding emergencies
- Dalu, Mwazvita, Shackleton, Charlie M
- Authors: Dalu, Mwazvita , Shackleton, Charlie M
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/179814 , vital:43191 , xlink:href="https://doi.org/10.1016/j.pce.2018.03.002"
- Description: Rapid and widespread land cover change and the subsequent loss of the buffering capacity provided by healthy ecosystems against natural hazards has resulted in increased vulnerability to natural hazards. There is an insufficient understanding of the natural resources contribution to the resilience of poor urban communities living in informal settlements and the financial implications thereof. Thus, household strategies used to recover from the October 2012 flood shock were investigated within the informal settlements of three small South African towns using questionnaires. Within the vulnerability paradigm and the sustainable livelihood framework, the study also quantified and evaluated the relative contribution of natural resources to recovery strategies and the impacts on household financial capital. We found that natural resources contributed up to 70% to recovery of households from the flood shock, most of this being to reconstruct housing structures after the flood. Factors such as household head education level, household income, kinship level, the extent of property damage and the cost associated with property rehabilitation significantly influenced the uptake of natural resources in recovery from floods, and this was variable among settlements and towns. The main findings showed that natural resources reduced household vulnerability of urban informal settlements by providing an emergency-net function that substitutes financial capital. Their inclusion in disaster management plans and responses has the potential to contribute to the sustainable livelihoods of the urban poor in the Eastern Cape, South Africa.
- Full Text:
- Date Issued: 2018
- Authors: Dalu, Mwazvita , Shackleton, Charlie M
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/179814 , vital:43191 , xlink:href="https://doi.org/10.1016/j.pce.2018.03.002"
- Description: Rapid and widespread land cover change and the subsequent loss of the buffering capacity provided by healthy ecosystems against natural hazards has resulted in increased vulnerability to natural hazards. There is an insufficient understanding of the natural resources contribution to the resilience of poor urban communities living in informal settlements and the financial implications thereof. Thus, household strategies used to recover from the October 2012 flood shock were investigated within the informal settlements of three small South African towns using questionnaires. Within the vulnerability paradigm and the sustainable livelihood framework, the study also quantified and evaluated the relative contribution of natural resources to recovery strategies and the impacts on household financial capital. We found that natural resources contributed up to 70% to recovery of households from the flood shock, most of this being to reconstruct housing structures after the flood. Factors such as household head education level, household income, kinship level, the extent of property damage and the cost associated with property rehabilitation significantly influenced the uptake of natural resources in recovery from floods, and this was variable among settlements and towns. The main findings showed that natural resources reduced household vulnerability of urban informal settlements by providing an emergency-net function that substitutes financial capital. Their inclusion in disaster management plans and responses has the potential to contribute to the sustainable livelihoods of the urban poor in the Eastern Cape, South Africa.
- Full Text:
- Date Issued: 2018
The evaluation of potential dietary media, measurement parameters and storage techniques for use in forensic entomotoxicology
- Mbatha, Erica Isabel Tavares Da Silva
- Authors: Mbatha, Erica Isabel Tavares Da Silva
- Date: 2018
- Subjects: Blowflies -- Feeding and feeds , Blowflies -- Larvae , Blowflies -- Physiology , Blowflies -- Collection and preservation , Poisons -- Analysis , Death -- Causes , Forensic pathology , Forensic entomology , Forensic entomotoxicology
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/63323 , vital:28393
- Description: The term forensic entomotoxicology was coined by Pounder and is used to describe the process of using insects to determine the presence or absence of toxicants in decomposing corpses. Forensic entomotoxicology is most applicable when the orthodox sources of evidence (i.e. blood and urine) are no longer available for testing due to the degree of putrefaction as a result of the decomposition process. As the field is relatively new, various authors have conducted studies to determine the effects of different toxicants on different insects. These studies have all been conducted in the absence of a standardised protocol and we hypothesise that this has led to conflicting results (i.e. two different authors will conduct a study using the same toxicant and model insect and the effects on the insects will differ significantly). The aim of this thesis was to identify the areas which might have led to the artefacts in the results and identify ways in which to standardise them. The three areas selected were the feeding substrates and the measures taken to quantify growth rate, as well as the preservation techniques that should be used for preserving larval flies. The recommendation from the literature review was that artificial diets would be the most appropriate dietary media to use for entomotoxicological studies. An artificial diet was selected and modified for potential used in entomotoxicological studies. Four different diets (no meat treatment, fish, beef and pork artificial diets) were used to rear Chrysomya chloropyga larvae and their growth rates were measured using length and width. The fly larvae reared on the fish and no meat treatment diets did not reach pupation stage. The beef and pork diets produced the largest larvae and the flies in these treatments reached adult stage. The recommendation was that the beef and pork treatments be tested with various toxicants to establish their stability in the matrix and the diet that provides the toxicants with the most stability should be used for future entomotoxicological studies. The two other factors selected for standardisation were the parameters used to quantify growth rate, as well as the preservation techniques used to store empty Chrysomya chloropyga pupal casings and Calliphora croceipalpis third instar larvae. Previous authors have suggested that width be used as an alternative to length to quantify growth rate. The results from this thesis show that length should continue to be used as the standard parameter because the incremental change in length is much larger than the change in width, and these larger increments allow for greater resolution when estimating the age of the larvae. Various authors have also suggested that pupal casings should be stored without any preservative, whereas fly larvae should be stored in concentrations of ethanol >70%. The results in this thesis have shown that the concentration of ethanol does not make any significant difference to the proportional change of length and width of the empty pupal casings and the third instar larvae. The recommendation is that when selecting the preservation technique, the integrity of the specimen for examination of other evidence (i.e. DNA or toxicological extraction) should take precedence. Although this thesis has not completely standardised the protocol for forensic entomotoxicology, it has indicated the areas that need to be focused on in order for standardisation to occur. Future studies should focus on standardisation, as this makes studies more comparable and ultimately makes entomotoxicological evidence admissible in the court of law.
- Full Text:
- Date Issued: 2018
- Authors: Mbatha, Erica Isabel Tavares Da Silva
- Date: 2018
- Subjects: Blowflies -- Feeding and feeds , Blowflies -- Larvae , Blowflies -- Physiology , Blowflies -- Collection and preservation , Poisons -- Analysis , Death -- Causes , Forensic pathology , Forensic entomology , Forensic entomotoxicology
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/63323 , vital:28393
- Description: The term forensic entomotoxicology was coined by Pounder and is used to describe the process of using insects to determine the presence or absence of toxicants in decomposing corpses. Forensic entomotoxicology is most applicable when the orthodox sources of evidence (i.e. blood and urine) are no longer available for testing due to the degree of putrefaction as a result of the decomposition process. As the field is relatively new, various authors have conducted studies to determine the effects of different toxicants on different insects. These studies have all been conducted in the absence of a standardised protocol and we hypothesise that this has led to conflicting results (i.e. two different authors will conduct a study using the same toxicant and model insect and the effects on the insects will differ significantly). The aim of this thesis was to identify the areas which might have led to the artefacts in the results and identify ways in which to standardise them. The three areas selected were the feeding substrates and the measures taken to quantify growth rate, as well as the preservation techniques that should be used for preserving larval flies. The recommendation from the literature review was that artificial diets would be the most appropriate dietary media to use for entomotoxicological studies. An artificial diet was selected and modified for potential used in entomotoxicological studies. Four different diets (no meat treatment, fish, beef and pork artificial diets) were used to rear Chrysomya chloropyga larvae and their growth rates were measured using length and width. The fly larvae reared on the fish and no meat treatment diets did not reach pupation stage. The beef and pork diets produced the largest larvae and the flies in these treatments reached adult stage. The recommendation was that the beef and pork treatments be tested with various toxicants to establish their stability in the matrix and the diet that provides the toxicants with the most stability should be used for future entomotoxicological studies. The two other factors selected for standardisation were the parameters used to quantify growth rate, as well as the preservation techniques used to store empty Chrysomya chloropyga pupal casings and Calliphora croceipalpis third instar larvae. Previous authors have suggested that width be used as an alternative to length to quantify growth rate. The results from this thesis show that length should continue to be used as the standard parameter because the incremental change in length is much larger than the change in width, and these larger increments allow for greater resolution when estimating the age of the larvae. Various authors have also suggested that pupal casings should be stored without any preservative, whereas fly larvae should be stored in concentrations of ethanol >70%. The results in this thesis have shown that the concentration of ethanol does not make any significant difference to the proportional change of length and width of the empty pupal casings and the third instar larvae. The recommendation is that when selecting the preservation technique, the integrity of the specimen for examination of other evidence (i.e. DNA or toxicological extraction) should take precedence. Although this thesis has not completely standardised the protocol for forensic entomotoxicology, it has indicated the areas that need to be focused on in order for standardisation to occur. Future studies should focus on standardisation, as this makes studies more comparable and ultimately makes entomotoxicological evidence admissible in the court of law.
- Full Text:
- Date Issued: 2018
Biotic and abiotic drivers of macroinvertebrate assemblages in a South African river
- Authors: Bellingan, Terence Andrew
- Date: 2018
- Subjects: Aquatic insects -- South Africa -- Eastern Cape , Stream ecology -- South Africa -- Eastern Cape , Freshwater ecology -- South Africa -- Eastern Cape , Riparian areas -- Management , Ecosystem management -- South Africa -- Eastern Cape , Mayflies -- South Africa -- Eastern Cape , Stoneflies -- South Africa -- Eastern Cape , Keiskamma River
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/61839 , vital:28067
- Description: Aquatic insects are the most numerically abundant and diverse group of organisms found in lotic ecosystems in South Africa and the world over. They play vital roles in freshwater ecosystem functioning, processing nutrients and in turn forming integral links in stream food-webs. This thesis focussed on examining the macroinvertebrate fauna within three reaches of headwater streams of the Keiskamma River system: reaches that were considered to be fishless; reaches that were invaded by non-native salmonid species; and reaches that were dominated by native fish. I described the effects of predatory fish presence through detailed examination of macroinvertebrate assemblage composition; macroinvertebrate drift timing and density; and through niche utilisation determined from stable isotope data. Patterns in the macroinvertebrate assemblages of the headwaters of the Keiskamma River appear to be driven more strongly by flow rate and seasonal influences, but fish presence and biotope availability were also significant drivers. Niche shifts due to predator presence were not easy to detect and, while patterns of influence may have been evident, they were not found to be significant. However, I demonstrated that salmonids selectively feed on native fish species when the opportunity is presented, occupying significantly higher trophic levels when co-occurring with native fish than in invaded reaches where native fish are absent. Drift timing and density were demonstrated to be significantly different between reach for specific macroinvertebrate species from the Ephemeroptera and Plecoptera, under differing fish predation regimes, in agreement with what has been observed from studies in rivers elsewhere. In freshwater ecosystems of South Africa and worldwide, mitigation of negative effects of alien fishes through their removal using piscicides may also affect non-target organisms. To better understand the effects of just such a removal operation, employed for the first time in the history of freshwater conservation in South Africa, macroinvertebrate communities were assessed for non-target effects of rotenone. The fish eradication operations were demonstrated to have a short-term negative effect on the macroinvertebrate assemblage, through water quality index measurements and alteration of densities of macroinvertebrate taxa collected from stone surfaces. However, no long-term detrimental impact was observed as macroinvertebrate faunas returned to a comparable pre-treatment state within a year of each rotenone application.
- Full Text:
- Date Issued: 2018
- Authors: Bellingan, Terence Andrew
- Date: 2018
- Subjects: Aquatic insects -- South Africa -- Eastern Cape , Stream ecology -- South Africa -- Eastern Cape , Freshwater ecology -- South Africa -- Eastern Cape , Riparian areas -- Management , Ecosystem management -- South Africa -- Eastern Cape , Mayflies -- South Africa -- Eastern Cape , Stoneflies -- South Africa -- Eastern Cape , Keiskamma River
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/61839 , vital:28067
- Description: Aquatic insects are the most numerically abundant and diverse group of organisms found in lotic ecosystems in South Africa and the world over. They play vital roles in freshwater ecosystem functioning, processing nutrients and in turn forming integral links in stream food-webs. This thesis focussed on examining the macroinvertebrate fauna within three reaches of headwater streams of the Keiskamma River system: reaches that were considered to be fishless; reaches that were invaded by non-native salmonid species; and reaches that were dominated by native fish. I described the effects of predatory fish presence through detailed examination of macroinvertebrate assemblage composition; macroinvertebrate drift timing and density; and through niche utilisation determined from stable isotope data. Patterns in the macroinvertebrate assemblages of the headwaters of the Keiskamma River appear to be driven more strongly by flow rate and seasonal influences, but fish presence and biotope availability were also significant drivers. Niche shifts due to predator presence were not easy to detect and, while patterns of influence may have been evident, they were not found to be significant. However, I demonstrated that salmonids selectively feed on native fish species when the opportunity is presented, occupying significantly higher trophic levels when co-occurring with native fish than in invaded reaches where native fish are absent. Drift timing and density were demonstrated to be significantly different between reach for specific macroinvertebrate species from the Ephemeroptera and Plecoptera, under differing fish predation regimes, in agreement with what has been observed from studies in rivers elsewhere. In freshwater ecosystems of South Africa and worldwide, mitigation of negative effects of alien fishes through their removal using piscicides may also affect non-target organisms. To better understand the effects of just such a removal operation, employed for the first time in the history of freshwater conservation in South Africa, macroinvertebrate communities were assessed for non-target effects of rotenone. The fish eradication operations were demonstrated to have a short-term negative effect on the macroinvertebrate assemblage, through water quality index measurements and alteration of densities of macroinvertebrate taxa collected from stone surfaces. However, no long-term detrimental impact was observed as macroinvertebrate faunas returned to a comparable pre-treatment state within a year of each rotenone application.
- Full Text:
- Date Issued: 2018
Exploratory mathematics talk in a second language: a sociolinguistic perspective:
- Graven, Mellony, Robertson, Sally-Ann
- Authors: Graven, Mellony , Robertson, Sally-Ann
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/69907 , vital:29594 , https://doi.org/10.1007/s11858-018-0952-2
- Description: This paper illuminates challenges confronting teachers and students at the literacy/numeracy interface in contexts where students have not developed sufficient English language proficiency to be learning mathematics through English but, due to socio-politically and economically driven perceptions are being taught in English. We analyse transcript data of classroom talk in a South African grade 4 mathematics lesson on fractions. Together with interview data, the lesson data highlight some of the consequences students’ diminished access to their home language appear to have on their access to mathematical meaning-making.
- Full Text:
- Date Issued: 2009
- Authors: Graven, Mellony , Robertson, Sally-Ann
- Date: 2009
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/69907 , vital:29594 , https://doi.org/10.1007/s11858-018-0952-2
- Description: This paper illuminates challenges confronting teachers and students at the literacy/numeracy interface in contexts where students have not developed sufficient English language proficiency to be learning mathematics through English but, due to socio-politically and economically driven perceptions are being taught in English. We analyse transcript data of classroom talk in a South African grade 4 mathematics lesson on fractions. Together with interview data, the lesson data highlight some of the consequences students’ diminished access to their home language appear to have on their access to mathematical meaning-making.
- Full Text:
- Date Issued: 2009
The impact of leadership on job satisfaction at a specific bank in the Eastern Cape
- Authors: Wyngaard, Shaun Peter
- Date: 2018
- Subjects: Leadership , Bank employees Job satisfaction , Labor turnover , Transformational leadership , Bank management South Africa Eastern Cape
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/62050 , vital:28099
- Description: This study aimed at investigating the relationship between leadership and employee job satisfaction in the banking sector of South Africa. The study drew from the fact that there is a growing emphasis in organisations to reduce employee turnover by keeping their employees satisfied. The ultimate performance, effectiveness and competitiveness of an organisation are directly related to an organisation’s ability to keep its employees optimally productive and satisfied. Numerous research studies have been conducted on transformational, transactional and passive-avoidant leadership to determine the significance of their respective relationship with the job satisfaction of employees in different scenarios. Results show that the transformational leadership style has a significant relationship with job satisfaction; while the transactional leadership style or the passive-avoidant style are applied according to changing circumstances. The study adopted a quantitative approach, using online questionnaires as an instrument for collecting primary data. The target population of the study was 380 bank employees, and the target sample was 218; 121 questionnaires were completed and used as the actual final sample. Questionnaires were completed from managers and employees of the selected bank, with the two population groups being investigated using different scales. SPSS was used in analysing the collected data. The findings of this research showed that the leadership styles under investigation have a direct impact on the job satisfaction of employees. Transformational leadership was found to have a significant positive relationship with job satisfaction, while the relationship between transactional leadership and job satisfaction was positive but moderate. A significant negative relationship was found between passive-avoidant leadership and job satisfaction. It is thus the responsibility of the financial institution under investigation to highlight the significant links and benefits of this leadership style to its management to ensure increased job satisfaction and lower turnover of employees in the institution. Literature explored in this study supported the close link between the different leadership styles and job satisfaction.
- Full Text:
- Date Issued: 2018
- Authors: Wyngaard, Shaun Peter
- Date: 2018
- Subjects: Leadership , Bank employees Job satisfaction , Labor turnover , Transformational leadership , Bank management South Africa Eastern Cape
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/62050 , vital:28099
- Description: This study aimed at investigating the relationship between leadership and employee job satisfaction in the banking sector of South Africa. The study drew from the fact that there is a growing emphasis in organisations to reduce employee turnover by keeping their employees satisfied. The ultimate performance, effectiveness and competitiveness of an organisation are directly related to an organisation’s ability to keep its employees optimally productive and satisfied. Numerous research studies have been conducted on transformational, transactional and passive-avoidant leadership to determine the significance of their respective relationship with the job satisfaction of employees in different scenarios. Results show that the transformational leadership style has a significant relationship with job satisfaction; while the transactional leadership style or the passive-avoidant style are applied according to changing circumstances. The study adopted a quantitative approach, using online questionnaires as an instrument for collecting primary data. The target population of the study was 380 bank employees, and the target sample was 218; 121 questionnaires were completed and used as the actual final sample. Questionnaires were completed from managers and employees of the selected bank, with the two population groups being investigated using different scales. SPSS was used in analysing the collected data. The findings of this research showed that the leadership styles under investigation have a direct impact on the job satisfaction of employees. Transformational leadership was found to have a significant positive relationship with job satisfaction, while the relationship between transactional leadership and job satisfaction was positive but moderate. A significant negative relationship was found between passive-avoidant leadership and job satisfaction. It is thus the responsibility of the financial institution under investigation to highlight the significant links and benefits of this leadership style to its management to ensure increased job satisfaction and lower turnover of employees in the institution. Literature explored in this study supported the close link between the different leadership styles and job satisfaction.
- Full Text:
- Date Issued: 2018
Periglacial landforms of the Ahlmannryggen and Jutulsessen areas of western Dronning Maud land, Antarctica
- Authors: Wilmot, Nicola Frances
- Date: 2018
- Subjects: Periglacial processes Antarctica Queen Maud Land , Geomorphology Antarctica Queen Maud Land , Permafrost Antarctica Queen Maud Land , Freezes (Meteorology) Antarctica Queen Maud Land , Thawing Antarctica Queen Maud Land
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/61535 , vital:28034
- Description: Periglacial landforms are a common occurrence in Ahlmannryggen and Jutulsessen areas of western Dronning Maud land (WDML). Classification and formation of these landforms were disputed in literature. In Antarctica information on periglacial landforms is limited or confined to a specific landform. Thus a holistic approach was taken when investigating the periglacial landforms found in WDML. An overview of the existing knowledge base on periglacial landforms in WDML was given which was coupled with the analysis of archival data. The landforms found in this area were patterned ground, openwork block deposits (OBD), rock glaciers, terraces, a pronival rampart and lake ice blisters. With patterned ground being the common periglacial landform in WDML, heave monitoring was used where time-lapse videos were used to investigate the formation processes in patterned ground. From consolidating existing knowledge as well as adding new knowledge on the formation of periglacial landforms, it is clear that the landforms in Antarctica should not be compared to other examples, especially examples from the northern hemisphere. Further research in the formation of periglacial landforms is needed and can be further enhanced with more extensive use of the heave monitoring method in future research.
- Full Text:
- Date Issued: 2018
- Authors: Wilmot, Nicola Frances
- Date: 2018
- Subjects: Periglacial processes Antarctica Queen Maud Land , Geomorphology Antarctica Queen Maud Land , Permafrost Antarctica Queen Maud Land , Freezes (Meteorology) Antarctica Queen Maud Land , Thawing Antarctica Queen Maud Land
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/61535 , vital:28034
- Description: Periglacial landforms are a common occurrence in Ahlmannryggen and Jutulsessen areas of western Dronning Maud land (WDML). Classification and formation of these landforms were disputed in literature. In Antarctica information on periglacial landforms is limited or confined to a specific landform. Thus a holistic approach was taken when investigating the periglacial landforms found in WDML. An overview of the existing knowledge base on periglacial landforms in WDML was given which was coupled with the analysis of archival data. The landforms found in this area were patterned ground, openwork block deposits (OBD), rock glaciers, terraces, a pronival rampart and lake ice blisters. With patterned ground being the common periglacial landform in WDML, heave monitoring was used where time-lapse videos were used to investigate the formation processes in patterned ground. From consolidating existing knowledge as well as adding new knowledge on the formation of periglacial landforms, it is clear that the landforms in Antarctica should not be compared to other examples, especially examples from the northern hemisphere. Further research in the formation of periglacial landforms is needed and can be further enhanced with more extensive use of the heave monitoring method in future research.
- Full Text:
- Date Issued: 2018
The role of African languages in the South African legal system: towards a transformative agenda
- Authors: Docrat, Zakeera
- Date: 2018
- Subjects: Forensic linguistics -- South Africa , Communication in law -- South Africa , Language policy -- South Africa , Linguistic rights -- South Africa , Court interpreting and translating -- South Africa , African languages -- South Africa
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/60809 , vital:27833
- Description: This interdisciplinary thesis, partly located in the emerging discipline of forensic linguistics, seeks to investigate the status and use of African languages in the South African legal system and how language can be used as a tool to transform the legal system. The research commences with an overview of the development of African languages in the legal system, pre and post Apartheid. The research proceeds to an overview of scholarly literature concerning the role of legislation, language policy and planning in regulating the use of African languages in the legal system, in order to give effect to South Africa’s constitutional provisions and enable linguistic transformation of the legal system. This research furthermore provides a critique of the constitutional language framework in relation to language rights of litigants in the legal system, when accessing justice through the medium of an African language. To this effect the research advances cases conducted in their entirety in an African language, illustrating that it is both possible and practicable. This research engages critically with the legislative and policy frameworks of the legal system, where issues concerning the equal recognition and use of African languages are highlighted. Language demographics in the form of statistics are provided, illustrative of the fact that the majority of South African’s speak an African language as their mother tongue. Additionally, the statistics provide that litigants in the legal system have poor proficiency in English, the language of record in courts. The research addresses the legislative and policy deficiencies of the non insertion of language requirements for legal practitioners and judicial officers that reflect the language demographics. Furthermore the need for linguistically competent legal practitioners and judicial officers is discussed in giving meaning to the constitutional language rights of litigants. A Canadian comparative jurisprudential case study is advanced, that can be emulated by the South African legal system. The Canadian model offers a precise and effective constitutional, legislative and policy framework where language rights are purposively interpreted in cases conducted in the official languages of the country. Furthermore the Canadian model provides that legal practitioners and judicial officers are linguistically competent in the official languages of the province in which they practice. This thesis highlights the issues hindering real transformation of the legal system, and concludes with recommendations which are both legally and linguistically sound.
- Full Text:
- Date Issued: 2018
- Authors: Docrat, Zakeera
- Date: 2018
- Subjects: Forensic linguistics -- South Africa , Communication in law -- South Africa , Language policy -- South Africa , Linguistic rights -- South Africa , Court interpreting and translating -- South Africa , African languages -- South Africa
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/60809 , vital:27833
- Description: This interdisciplinary thesis, partly located in the emerging discipline of forensic linguistics, seeks to investigate the status and use of African languages in the South African legal system and how language can be used as a tool to transform the legal system. The research commences with an overview of the development of African languages in the legal system, pre and post Apartheid. The research proceeds to an overview of scholarly literature concerning the role of legislation, language policy and planning in regulating the use of African languages in the legal system, in order to give effect to South Africa’s constitutional provisions and enable linguistic transformation of the legal system. This research furthermore provides a critique of the constitutional language framework in relation to language rights of litigants in the legal system, when accessing justice through the medium of an African language. To this effect the research advances cases conducted in their entirety in an African language, illustrating that it is both possible and practicable. This research engages critically with the legislative and policy frameworks of the legal system, where issues concerning the equal recognition and use of African languages are highlighted. Language demographics in the form of statistics are provided, illustrative of the fact that the majority of South African’s speak an African language as their mother tongue. Additionally, the statistics provide that litigants in the legal system have poor proficiency in English, the language of record in courts. The research addresses the legislative and policy deficiencies of the non insertion of language requirements for legal practitioners and judicial officers that reflect the language demographics. Furthermore the need for linguistically competent legal practitioners and judicial officers is discussed in giving meaning to the constitutional language rights of litigants. A Canadian comparative jurisprudential case study is advanced, that can be emulated by the South African legal system. The Canadian model offers a precise and effective constitutional, legislative and policy framework where language rights are purposively interpreted in cases conducted in the official languages of the country. Furthermore the Canadian model provides that legal practitioners and judicial officers are linguistically competent in the official languages of the province in which they practice. This thesis highlights the issues hindering real transformation of the legal system, and concludes with recommendations which are both legally and linguistically sound.
- Full Text:
- Date Issued: 2018
Optical limiting properties of 3, 5-dipyrenylvinyleneBODIPY dyes at 532 nm
- Kubheka, Gugu, Sanusi, Kayode, Mack, John, Nyokong, Tebello
- Authors: Kubheka, Gugu , Sanusi, Kayode , Mack, John , Nyokong, Tebello
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/237938 , vital:50567 , xlink:href="https://doi.org/10.1016/j.saa.2017.10.021"
- Description: The optical limiting (OL) properties of 3,5-dipyrenylvinyleneBODIPY dyes that contain both electron withdrawing and donating moieties have been investigated by using the z-scan technique at 532 nm in the nanosecond pulse range. The extension of the π-conjugation at the 3,5-positions with pyrenylvinylene groups results in a ca. 200 nm red shift of the main BODIPY spectral band to ca. 700 nm, so there is relatively weak absorbance at 532 nm under ambient light conditions. Reverse saturable absorbance (RSA) profiles are observed in response to incident pulsed laser light that is consistent with a two photon absorption-assisted excited state absorption (ESA) mechanism in CH2Cl2 solution and when the dyes are embedded in poly(bisphenol carbonate A) (PBC) polymer thin films. This demonstrates that 3,5-divinyleneBODIPY dyes are potentially suitable for use in OL applications, since limiting threshold fluence (Ilim) values of below 0.95 J cm−2 are observed when thin films are prepared.
- Full Text:
- Date Issued: 2018
- Authors: Kubheka, Gugu , Sanusi, Kayode , Mack, John , Nyokong, Tebello
- Date: 2018
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/237938 , vital:50567 , xlink:href="https://doi.org/10.1016/j.saa.2017.10.021"
- Description: The optical limiting (OL) properties of 3,5-dipyrenylvinyleneBODIPY dyes that contain both electron withdrawing and donating moieties have been investigated by using the z-scan technique at 532 nm in the nanosecond pulse range. The extension of the π-conjugation at the 3,5-positions with pyrenylvinylene groups results in a ca. 200 nm red shift of the main BODIPY spectral band to ca. 700 nm, so there is relatively weak absorbance at 532 nm under ambient light conditions. Reverse saturable absorbance (RSA) profiles are observed in response to incident pulsed laser light that is consistent with a two photon absorption-assisted excited state absorption (ESA) mechanism in CH2Cl2 solution and when the dyes are embedded in poly(bisphenol carbonate A) (PBC) polymer thin films. This demonstrates that 3,5-divinyleneBODIPY dyes are potentially suitable for use in OL applications, since limiting threshold fluence (Ilim) values of below 0.95 J cm−2 are observed when thin films are prepared.
- Full Text:
- Date Issued: 2018
The Art of Life in South Africa by Daniel Magaziner: a review
- Authors: Ijisakin, Eyitayo Tolulope
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146101 , vital:38495 , https://www.muse.jhu.edu/article/702008
- Description: In The Art of Life in South Africa, Daniel Magaziner examines the history of art education under apartheid in South Africa. The book focuses on Ndaleni, an art school for black South Africans, and considers the travails and triumphs of its artists and their teachers under white supremacy. At Ndaleni, students and teachers were bound together in learning “the art of life”; due to lack of funds, they improvised materials for artistic production. While the school existed, between the 1950s and 1980s, about 1,000 students graduated; about 2,000 could not be admitted due to constraints of space. This shows how Ndaleni appealed to many black South Africans as one of the few places they could develop their art. According to the Bantu Education Act of 1953 (p. 3), the purpose of the school was to preserve white supremacy, the segregation between African and European education—what Oguibe (2004) refers to as “Play me the other.” The book is organized into seven chapters, with a prologue, an epilogue, and endnotes.
- Full Text:
- Date Issued: 2019
- Authors: Ijisakin, Eyitayo Tolulope
- Date: 2019
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/146101 , vital:38495 , https://www.muse.jhu.edu/article/702008
- Description: In The Art of Life in South Africa, Daniel Magaziner examines the history of art education under apartheid in South Africa. The book focuses on Ndaleni, an art school for black South Africans, and considers the travails and triumphs of its artists and their teachers under white supremacy. At Ndaleni, students and teachers were bound together in learning “the art of life”; due to lack of funds, they improvised materials for artistic production. While the school existed, between the 1950s and 1980s, about 1,000 students graduated; about 2,000 could not be admitted due to constraints of space. This shows how Ndaleni appealed to many black South Africans as one of the few places they could develop their art. According to the Bantu Education Act of 1953 (p. 3), the purpose of the school was to preserve white supremacy, the segregation between African and European education—what Oguibe (2004) refers to as “Play me the other.” The book is organized into seven chapters, with a prologue, an epilogue, and endnotes.
- Full Text:
- Date Issued: 2019
Influence of knowledge of the end-point on pacing during a 2000m rowing time trial
- Authors: Ferreira, Dean
- Date: 2018
- Subjects: Rowing -- Training , Rowing -- Coaching , Endurance sports -- Training , Rowers -- Ability testing , Rowing -- Training -- Psychological aspects
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/61636 , vital:28044
- Description: Introduction: A typical 2000 m rowing race requires maximal force production over six to eight minutes. Optimal distribution of energetic resources during such a race is vital for optimal performance. There is little research examining the pacing strategies employed by rowers, particularly at the sub-elite level. Aim: The purpose of this investigation was to determine the influence of knowledge of the end-point on pacing during a 2000 m rowing time trial. Methods: Eleven male rowers from a university rowing club volunteered to partake in the study. Each participant completed three experimental trials on an indoor rowing ergometer, each 2000 m. The only difference between the trials was the nature of the information provided beforehand. At the start of the control trial, participants were correctly informed about the distance to be covered. Participants were not informed of the distance to be completed in the unknown trial. For the deceptive trial, participants were told 1000 m would be completed, but when this distance was reached, they were told to continue for another 1000 m. During each trial muscle activity, power output, heart rate, performance time and perceptions of effort were measured.Results: The control trial was significantly (p<0.05) faster than both the unknown and deceptive trials, however the deceptive trial was the fastest of all trials at the 1000 m distance. The unknown trial was slowest at 1000 m and at 2000 m. Muscle activity, RPE, heart rate and power output were significantly (p<0.05) lower in the unknown trial compared to the control and deceptive trial. The control trial exhibited a reverse J-shape pacing profile. The deceptive trial revealed a significant (p<0.05) reduction in performance time, heart rate, power output and muscle activity after the 1000 m interval. The first 500 m interval had the fastest performance and highest power output in all trials. In all trials, RPE was highest at the end of the 2000 m, the greatest reading being obtained at the end of the control trial. During the first 1000 m of the deceptive trial, the dependant variables were similar to those in the control trial. Once the deception was revealed, there was a significant (p<0.05) reduction in the muscle activity, heart rate and power output. Conclusion: The results of this study indicate that accurate end-point information is crucial to the development of an optimal pacing strategy, and ultimately to successful performance. Rowers tend to adopt the reverse J-shape pacing profile most often due to the tactical and physiological benefits offered by this strategy. Unknown or inaccurate end-point information resulted in performance decrements due to the uncertainty associated with the exercise bout.
- Full Text:
- Date Issued: 2018
- Authors: Ferreira, Dean
- Date: 2018
- Subjects: Rowing -- Training , Rowing -- Coaching , Endurance sports -- Training , Rowers -- Ability testing , Rowing -- Training -- Psychological aspects
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/61636 , vital:28044
- Description: Introduction: A typical 2000 m rowing race requires maximal force production over six to eight minutes. Optimal distribution of energetic resources during such a race is vital for optimal performance. There is little research examining the pacing strategies employed by rowers, particularly at the sub-elite level. Aim: The purpose of this investigation was to determine the influence of knowledge of the end-point on pacing during a 2000 m rowing time trial. Methods: Eleven male rowers from a university rowing club volunteered to partake in the study. Each participant completed three experimental trials on an indoor rowing ergometer, each 2000 m. The only difference between the trials was the nature of the information provided beforehand. At the start of the control trial, participants were correctly informed about the distance to be covered. Participants were not informed of the distance to be completed in the unknown trial. For the deceptive trial, participants were told 1000 m would be completed, but when this distance was reached, they were told to continue for another 1000 m. During each trial muscle activity, power output, heart rate, performance time and perceptions of effort were measured.Results: The control trial was significantly (p<0.05) faster than both the unknown and deceptive trials, however the deceptive trial was the fastest of all trials at the 1000 m distance. The unknown trial was slowest at 1000 m and at 2000 m. Muscle activity, RPE, heart rate and power output were significantly (p<0.05) lower in the unknown trial compared to the control and deceptive trial. The control trial exhibited a reverse J-shape pacing profile. The deceptive trial revealed a significant (p<0.05) reduction in performance time, heart rate, power output and muscle activity after the 1000 m interval. The first 500 m interval had the fastest performance and highest power output in all trials. In all trials, RPE was highest at the end of the 2000 m, the greatest reading being obtained at the end of the control trial. During the first 1000 m of the deceptive trial, the dependant variables were similar to those in the control trial. Once the deception was revealed, there was a significant (p<0.05) reduction in the muscle activity, heart rate and power output. Conclusion: The results of this study indicate that accurate end-point information is crucial to the development of an optimal pacing strategy, and ultimately to successful performance. Rowers tend to adopt the reverse J-shape pacing profile most often due to the tactical and physiological benefits offered by this strategy. Unknown or inaccurate end-point information resulted in performance decrements due to the uncertainty associated with the exercise bout.
- Full Text:
- Date Issued: 2018
Import licensing regulation within the WTO: a case study of the dispute between Zimbabwe and South Africa over the Control of Goods (Open General Import Licence) Notice of 2016 (Statutory Instrument 64)
- Kamunjoma, Charles https://orcid.org/0000-0002-1930-4341
- Authors: Kamunjoma, Charles https://orcid.org/0000-0002-1930-4341
- Date: 2018
- Subjects: Import quotas , Customs unions , Africa, Southern -- Economic integration
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27854 , vital:70097
- Description: Over the years, Zimbabwe has arbitrarily enforced trade restrictive measures including mandatory inspections on certain products, duty increases, surtaxes and import permits on basic products such as cooking oil. The measures have been allegedly targeting goods from South Africa. Amongst the most recent restrictive measures imposed by Zimbabwe is SI 64 of 2016 that now operates as SI 122 of 2017. In response to SI 64, for the first time, South Africa threatened retaliation. As a result, there is visible trade tension between Zimbabwe and South Africa. With the absence of an effective dispute settlement mechanism within SADC, or most African Regional Economic Communities RECs for that matter, a WTO approach to the issue will provide valuable insights on how else South Africa (and other African countries) can deal with cross-border trade problems such as the ones posed by SI 64. , Thesis (LLM) -- Faculty of Law, 2018
- Full Text:
- Date Issued: 2018
- Authors: Kamunjoma, Charles https://orcid.org/0000-0002-1930-4341
- Date: 2018
- Subjects: Import quotas , Customs unions , Africa, Southern -- Economic integration
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/27854 , vital:70097
- Description: Over the years, Zimbabwe has arbitrarily enforced trade restrictive measures including mandatory inspections on certain products, duty increases, surtaxes and import permits on basic products such as cooking oil. The measures have been allegedly targeting goods from South Africa. Amongst the most recent restrictive measures imposed by Zimbabwe is SI 64 of 2016 that now operates as SI 122 of 2017. In response to SI 64, for the first time, South Africa threatened retaliation. As a result, there is visible trade tension between Zimbabwe and South Africa. With the absence of an effective dispute settlement mechanism within SADC, or most African Regional Economic Communities RECs for that matter, a WTO approach to the issue will provide valuable insights on how else South Africa (and other African countries) can deal with cross-border trade problems such as the ones posed by SI 64. , Thesis (LLM) -- Faculty of Law, 2018
- Full Text:
- Date Issued: 2018
Modelling Ionospheric vertical drifts over the African low latitude region
- Dubazane, Makhosonke Berthwell
- Authors: Dubazane, Makhosonke Berthwell
- Date: 2018
- Subjects: Ionospheric drift , Magnetometers , Functions, Orthogonal , Neural networks (Computer science) , Ionospheric electron density -- Africa , Communication and Navigation Outage Forecasting Systems (C/NOFS)
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/63356 , vital:28396
- Description: Low/equatorial latitudes vertical plasma drifts and electric fields govern the formation and changes of ionospheric density structures which affect space-based systems such as communications, navigation and positioning. Dynamical and electrodynamical processes play important roles in plasma distribution at different altitudes. Because of the high variability of E × B drift in low latitude regions, coupled with various processes that sometimes originate from high latitudes especially during geomagnetic storm conditions, it is challenging to develop accurate vertical drift models. This is despite the fact that there are very few instruments dedicated to provide electric field and hence E × B drift data in low/equatorial latitude regions. To this effect, there exists no ground-based instrument for direct measurements of E×B drift data in the African sector. This study presents the first time investigation aimed at modelling the long-term variability of low latitude vertical E × B drift over the African sector using a combination of Communication and Navigation Outage Forecasting Systems (C/NOFS) and ground-based magnetometer observations/measurements during 2008-2013. Because the approach is based on the estimation of equatorial electrojet from ground-based magnetometer observations, the developed models are only valid for local daytime. Three modelling techniques have been considered. The application of Empirical Orthogonal Functions and partial least squares has been performed on vertical E × B drift modelling for the first time. The artificial neural networks that have the advantage of learning underlying changes between a set of inputs and known output were also used in vertical E × B drift modelling. Due to lack of E×B drift data over the African sector, the developed models were validated using satellite data and the climatological Scherliess-Fejer model incorporated within the International Reference Ionosphere model. Maximum correlation coefficient of ∼ 0.8 was achieved when validating the developed models with C/NOFS E × B drift observations that were not used in any model development. For most of the time, the climatological model overestimates the local daytime vertical E × B drift velocities. The methods and approach presented in this study provide a background for constructing vertical E ×B drift databases in longitude sectors that do not have radar instrumentation. This will in turn make it possible to study day-to-day variability of vertical E×B drift and hopefully lead to the development of regional and global models that will incorporate local time information in different longitude sectors.
- Full Text:
- Date Issued: 2018
- Authors: Dubazane, Makhosonke Berthwell
- Date: 2018
- Subjects: Ionospheric drift , Magnetometers , Functions, Orthogonal , Neural networks (Computer science) , Ionospheric electron density -- Africa , Communication and Navigation Outage Forecasting Systems (C/NOFS)
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/63356 , vital:28396
- Description: Low/equatorial latitudes vertical plasma drifts and electric fields govern the formation and changes of ionospheric density structures which affect space-based systems such as communications, navigation and positioning. Dynamical and electrodynamical processes play important roles in plasma distribution at different altitudes. Because of the high variability of E × B drift in low latitude regions, coupled with various processes that sometimes originate from high latitudes especially during geomagnetic storm conditions, it is challenging to develop accurate vertical drift models. This is despite the fact that there are very few instruments dedicated to provide electric field and hence E × B drift data in low/equatorial latitude regions. To this effect, there exists no ground-based instrument for direct measurements of E×B drift data in the African sector. This study presents the first time investigation aimed at modelling the long-term variability of low latitude vertical E × B drift over the African sector using a combination of Communication and Navigation Outage Forecasting Systems (C/NOFS) and ground-based magnetometer observations/measurements during 2008-2013. Because the approach is based on the estimation of equatorial electrojet from ground-based magnetometer observations, the developed models are only valid for local daytime. Three modelling techniques have been considered. The application of Empirical Orthogonal Functions and partial least squares has been performed on vertical E × B drift modelling for the first time. The artificial neural networks that have the advantage of learning underlying changes between a set of inputs and known output were also used in vertical E × B drift modelling. Due to lack of E×B drift data over the African sector, the developed models were validated using satellite data and the climatological Scherliess-Fejer model incorporated within the International Reference Ionosphere model. Maximum correlation coefficient of ∼ 0.8 was achieved when validating the developed models with C/NOFS E × B drift observations that were not used in any model development. For most of the time, the climatological model overestimates the local daytime vertical E × B drift velocities. The methods and approach presented in this study provide a background for constructing vertical E ×B drift databases in longitude sectors that do not have radar instrumentation. This will in turn make it possible to study day-to-day variability of vertical E×B drift and hopefully lead to the development of regional and global models that will incorporate local time information in different longitude sectors.
- Full Text:
- Date Issued: 2018
Happiness: a business model
- Authors: Cullen, Margaret
- Subjects: Happiness , f-sa
- Language: English
- Type: text , Lectures
- Identifier: http://hdl.handle.net/10948/20956 , vital:29422
- Description: The concept of happiness might appear elusive. It has been extensively analysed by philosophers and historians, who agree that the concept of happiness in antiquity centered on good luck and fortune. Something beyond human agency and therefore controlled by the Gods (McMahon, 2006).Today, happiness is viewed as something over which you can have control and something that can be pursued (Oishi, 2012).
- Full Text:
- Authors: Cullen, Margaret
- Subjects: Happiness , f-sa
- Language: English
- Type: text , Lectures
- Identifier: http://hdl.handle.net/10948/20956 , vital:29422
- Description: The concept of happiness might appear elusive. It has been extensively analysed by philosophers and historians, who agree that the concept of happiness in antiquity centered on good luck and fortune. Something beyond human agency and therefore controlled by the Gods (McMahon, 2006).Today, happiness is viewed as something over which you can have control and something that can be pursued (Oishi, 2012).
- Full Text:
Perspectives about the execution of police powers and functions in the republic of Zimbabwe
- Mugari, Ishmael, Obioha, Emeka, E
- Authors: Mugari, Ishmael , Obioha, Emeka, E
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/4928 , vital:44304 , http://cjssp.uni-corvinus.hu/index.php/cjssp/article/view/220
- Description: This study was conducted to explore views about the execution of powers and functions of the police in the light of related challenges. This study made use of data from a total of 83 adult participants (a survey involving 73 individuals, and 10 in-depth interviews), including males and females of diverse occupational backgrounds from Bindura and Mount Darwin policing districts in Zimbabwe. A closed-ended, mostly Likert-scale-based questionnaire was used to collect data about the prevalent forms of police abuse of powers and functions, while an in-depth interview guide was provided to harvest information qualitatively. Findings reveal that police officers abuse their powers through unlawful arrests, arbitrary search and seizure, excessive use of force, unlawful methods of investigation, and ill treatment of detainees. Though not as prevalent as other forms of abuse, malicious criminal prosecution and partisan policing were also cited.K EYWOR DS: powers, abuse, function, police, Zimbabwe
- Full Text:
- Date Issued: 2018
- Authors: Mugari, Ishmael , Obioha, Emeka, E
- Date: 2018
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/11260/4928 , vital:44304 , http://cjssp.uni-corvinus.hu/index.php/cjssp/article/view/220
- Description: This study was conducted to explore views about the execution of powers and functions of the police in the light of related challenges. This study made use of data from a total of 83 adult participants (a survey involving 73 individuals, and 10 in-depth interviews), including males and females of diverse occupational backgrounds from Bindura and Mount Darwin policing districts in Zimbabwe. A closed-ended, mostly Likert-scale-based questionnaire was used to collect data about the prevalent forms of police abuse of powers and functions, while an in-depth interview guide was provided to harvest information qualitatively. Findings reveal that police officers abuse their powers through unlawful arrests, arbitrary search and seizure, excessive use of force, unlawful methods of investigation, and ill treatment of detainees. Though not as prevalent as other forms of abuse, malicious criminal prosecution and partisan policing were also cited.K EYWOR DS: powers, abuse, function, police, Zimbabwe
- Full Text:
- Date Issued: 2018
A psychobiographical study of Temple Grandin
- Authors: Wannenburg, Nicola
- Date: 2018
- Subjects: Grandin, Temple , Psychology Biographical methods , Psychoanalysis , Autistic women United States Biography , Women animal specialists United States Biography , Developmental psychology , Erikson, Erik H (Erik Homburger), 1902-1994
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/57358 , vital:26877
- Description: Psychobiographical researchers methodically formulate life histories and interpret them by means of psychological theories. The research typically focuses on exemplary and completed lives. The cases that are studied are usually of individuals who are of particular interest to society as a result of excelling in their particular fields, be they to benefit or detriment of society. Temple Grandin was chosen for this study using purposive sampling as she meets the psychobiographical requirement of being an extraordinary individual. As an individual with autism Grandin faced many challenges growing up. Despite a difficult and absent beginning, Grandin developed into a stable and scientifically creative adult who contributes to society. She excels as an animal scientist and designer of humane livestock handling facilities and has an international reputation for her contribution to the livestock industry and animal welfare. The primary aim of this study is to describe and interpret the life of Temple Grandin through Erikson’s (1950/1973) theory of psychosocial development. A mixed method approach (Yin, 2006) was employed for the conduction of this study. The overarching data processing and analysis guidelines for this study were provided by Miles and Huberman (1994, 2002a, 2002b). The conduction of the processing and analysis of data was aided by Alexander’s (1988, 1990) method of asking the data questions as well as an integration of Yin’s (2014) time series analysis with Erikson’s (1950/1973) triple bookkeeping approach. This study contributes to the development of psychobiographical research in South Africa as well as to personality and developmental theory.
- Full Text:
- Date Issued: 2018
- Authors: Wannenburg, Nicola
- Date: 2018
- Subjects: Grandin, Temple , Psychology Biographical methods , Psychoanalysis , Autistic women United States Biography , Women animal specialists United States Biography , Developmental psychology , Erikson, Erik H (Erik Homburger), 1902-1994
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/57358 , vital:26877
- Description: Psychobiographical researchers methodically formulate life histories and interpret them by means of psychological theories. The research typically focuses on exemplary and completed lives. The cases that are studied are usually of individuals who are of particular interest to society as a result of excelling in their particular fields, be they to benefit or detriment of society. Temple Grandin was chosen for this study using purposive sampling as she meets the psychobiographical requirement of being an extraordinary individual. As an individual with autism Grandin faced many challenges growing up. Despite a difficult and absent beginning, Grandin developed into a stable and scientifically creative adult who contributes to society. She excels as an animal scientist and designer of humane livestock handling facilities and has an international reputation for her contribution to the livestock industry and animal welfare. The primary aim of this study is to describe and interpret the life of Temple Grandin through Erikson’s (1950/1973) theory of psychosocial development. A mixed method approach (Yin, 2006) was employed for the conduction of this study. The overarching data processing and analysis guidelines for this study were provided by Miles and Huberman (1994, 2002a, 2002b). The conduction of the processing and analysis of data was aided by Alexander’s (1988, 1990) method of asking the data questions as well as an integration of Yin’s (2014) time series analysis with Erikson’s (1950/1973) triple bookkeeping approach. This study contributes to the development of psychobiographical research in South Africa as well as to personality and developmental theory.
- Full Text:
- Date Issued: 2018
Discovery and validation of a CD4 binding aptamer through Crossover SELEX towards the preliminary development of a point-of-care aptasensor for rapid CD4+ T-cell counting
- Authors: Fellows, Tamika
- Date: 2018
- Subjects: Uncatalogued
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/63527 , vital:28431
- Description: Expected release date-April 2020
- Full Text:
- Date Issued: 2018
- Authors: Fellows, Tamika
- Date: 2018
- Subjects: Uncatalogued
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/63527 , vital:28431
- Description: Expected release date-April 2020
- Full Text:
- Date Issued: 2018