Professional identity of teacher educators as assessors of teaching practice : a case study in a South African university
- Authors: Roy, Irene Juanita Sass
- Date: 2016
- Subjects: Teacher educators--Professional relationships Teachers--Training of
- Language: English
- Type: Thesis , Doctoral , Education
- Identifier: http://hdl.handle.net/10353/15969 , vital:40570
- Description: This study focuses on the professional identity of Teacher Educators as assessors of teaching practice for Post Graduate Certificate in Education (PGCE) student teachers.The research was presented as a case study at one institution of higher learning. The focus was on the professional identity of teacher educators as revealed in the assessment narratives they expressed as a report back to PGCE students and the verbalisation of their beliefs through semi-structured interviews at the particular institution. This study adopted a qualitative research methodology from an interpretivist paradigm whereby the collected data was coded and analysed through applying both inductive and deductive reasoning. Themes which emerged from the data were qualitatively analysed through the social-constructivist theories of Bernstein, Lave and Wenger and Feiman-Nemser. This study revealed that the professional identity of Teacher Educators plays a significant role in the way in which they assess students. The study showed that theprofessional identity (encompassing of professional knowledge) of Teacher Educators determines their assessment focus, professional knowledge and identity is reflected in the narrative feedback to PGCE student teachers and their views of the current assessment instrument as (in)effective. The study revealed that Teacher Educators have specific expectations (pedagogical skill, subject and content knowledge) but the complexities of their identity override how they apply the assessment instrument. In addition Teacher Educators are challenged by the PGCE cohort in that they expect this group to show the same competencies as students coming through the under-graduate programme. The study recommends that a collaborative approach be adopted in the preparation and assessment of PGCE student teachers; a re-conceptualisation of the requirements of teaching competence for this group be undertaken; and Teacher Educators be empowered to teach and assess PGCE student teachers aligned with the principles of andragogy and that Higher Education policy take cognisance of and make provision for the unique needs of PGCE teacher training. The study proposes a revised approach by Teacher Educators be considered which treat the assessment of teaching competence for PGCE student teachers in a less fragmented and individualised manner. This implies that a different organisational assessment culture is needed in order to democratize the assessment of PGCE student teachers, training in the GET band in South Africa.
- Full Text:
- Date Issued: 2016
- Authors: Roy, Irene Juanita Sass
- Date: 2016
- Subjects: Teacher educators--Professional relationships Teachers--Training of
- Language: English
- Type: Thesis , Doctoral , Education
- Identifier: http://hdl.handle.net/10353/15969 , vital:40570
- Description: This study focuses on the professional identity of Teacher Educators as assessors of teaching practice for Post Graduate Certificate in Education (PGCE) student teachers.The research was presented as a case study at one institution of higher learning. The focus was on the professional identity of teacher educators as revealed in the assessment narratives they expressed as a report back to PGCE students and the verbalisation of their beliefs through semi-structured interviews at the particular institution. This study adopted a qualitative research methodology from an interpretivist paradigm whereby the collected data was coded and analysed through applying both inductive and deductive reasoning. Themes which emerged from the data were qualitatively analysed through the social-constructivist theories of Bernstein, Lave and Wenger and Feiman-Nemser. This study revealed that the professional identity of Teacher Educators plays a significant role in the way in which they assess students. The study showed that theprofessional identity (encompassing of professional knowledge) of Teacher Educators determines their assessment focus, professional knowledge and identity is reflected in the narrative feedback to PGCE student teachers and their views of the current assessment instrument as (in)effective. The study revealed that Teacher Educators have specific expectations (pedagogical skill, subject and content knowledge) but the complexities of their identity override how they apply the assessment instrument. In addition Teacher Educators are challenged by the PGCE cohort in that they expect this group to show the same competencies as students coming through the under-graduate programme. The study recommends that a collaborative approach be adopted in the preparation and assessment of PGCE student teachers; a re-conceptualisation of the requirements of teaching competence for this group be undertaken; and Teacher Educators be empowered to teach and assess PGCE student teachers aligned with the principles of andragogy and that Higher Education policy take cognisance of and make provision for the unique needs of PGCE teacher training. The study proposes a revised approach by Teacher Educators be considered which treat the assessment of teaching competence for PGCE student teachers in a less fragmented and individualised manner. This implies that a different organisational assessment culture is needed in order to democratize the assessment of PGCE student teachers, training in the GET band in South Africa.
- Full Text:
- Date Issued: 2016
Promoting innovation through intrapreneurship at Eskom distribution (Eastern Cape)
- Authors: Phillips, Abraham James
- Date: 2016
- Subjects: Entrepreneurship -- South Africa -- Eastern Cape Technological innovations -- Economic aspects , Satellite solar power stations
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/13060 , vital:27148
- Description: Maintaining and improving innovation is vital to any organisation.There are many challenges organisations are faced with, both internally and externally when it comes to maintain and improving innovation. Eskom is such an organisation. The employees, both non-managerial and managerial, of Eskom are faced with various challenges in their daily activities. The quest for innovation advantages requires increased creativity to assist employees in adopting an intrapreneurial outlook to provide proactive solutions. Intrapreneurship is an autonomous process. Eskom which bulk suppliers South Africa mission is to provide electricity reliably at a low cost to all South African. This seems less reachable with high operating cost, slow capacity growth and aging infrastructure. This study focused and contributed to the innovation environment of Eskom, with the area of study being confined within the Eastern Cape. The study objectives sought to review Eskom Distribution’s business plan and innovation policy, while identifying if employees have intrapreneurial trait, if organisational culture, system and managerial styles are conducive for intraprenuership, if the external environment will promote intrapreneurship within the organisation, and which ideas have best adoption rates of innovation within the organisation, these factors may hinder the success of innovation in the organisation, based on the theoretical findings of the literature study. Employees, at both managerial and non-managerial levels participated in a research study. The research instrument used comprised of questions that covered the various objectives listed above. This provided the basis for a quantitative study to be done. Using statistical methods to identify any special relationships or trends, the research was conducted and recommendations were made based on the objectives of this study in relation to the organisation under study, Eskom Distribution, Eastern Cape Operating Unit. Based on the findings, recommendations to improve innovation, through intrapreneurship methods were made.
- Full Text:
- Date Issued: 2016
- Authors: Phillips, Abraham James
- Date: 2016
- Subjects: Entrepreneurship -- South Africa -- Eastern Cape Technological innovations -- Economic aspects , Satellite solar power stations
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/13060 , vital:27148
- Description: Maintaining and improving innovation is vital to any organisation.There are many challenges organisations are faced with, both internally and externally when it comes to maintain and improving innovation. Eskom is such an organisation. The employees, both non-managerial and managerial, of Eskom are faced with various challenges in their daily activities. The quest for innovation advantages requires increased creativity to assist employees in adopting an intrapreneurial outlook to provide proactive solutions. Intrapreneurship is an autonomous process. Eskom which bulk suppliers South Africa mission is to provide electricity reliably at a low cost to all South African. This seems less reachable with high operating cost, slow capacity growth and aging infrastructure. This study focused and contributed to the innovation environment of Eskom, with the area of study being confined within the Eastern Cape. The study objectives sought to review Eskom Distribution’s business plan and innovation policy, while identifying if employees have intrapreneurial trait, if organisational culture, system and managerial styles are conducive for intraprenuership, if the external environment will promote intrapreneurship within the organisation, and which ideas have best adoption rates of innovation within the organisation, these factors may hinder the success of innovation in the organisation, based on the theoretical findings of the literature study. Employees, at both managerial and non-managerial levels participated in a research study. The research instrument used comprised of questions that covered the various objectives listed above. This provided the basis for a quantitative study to be done. Using statistical methods to identify any special relationships or trends, the research was conducted and recommendations were made based on the objectives of this study in relation to the organisation under study, Eskom Distribution, Eastern Cape Operating Unit. Based on the findings, recommendations to improve innovation, through intrapreneurship methods were made.
- Full Text:
- Date Issued: 2016
Property development: a lead-time management framework
- Authors: Stander, Ruan
- Date: 2016
- Subjects: Planned communities -- South Africa Land subdivision -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/12703 , vital:27110
- Description: Property development is a complex activity, with a series of stages involving many players with differing objectives, all operating within the building cycle context and its interaction with business and credit cycles. Before developers commit to acquiring land and sign a building contract, they first evaluate the market to establish a project’s viability, and secure finance and planning consents. (Cadman and Topping, 1995: 27). The residential property developer must have a fair knowledge of the changes in the economy and be able to interpret data collected. This knowledge is critical in order to make good business decisions and for future project planning. Understanding the economic variables and the impact these have on households, provides knowledge to the consumer to assist with financial planning and future investment options (Vogel, 2012: 14). Currently, everyone is aware of the huge negative impact of the global economic crisis, especially concerning international investment companies in western countries. Many businesses have ceased operations and some investment banks have experienced large scale bankruptcy due to the economic crisis and resulting recession. The Chinese economy suffered losses in the crisis as well (Yiping, 2011: 6). Even though the export industry experienced a huge negative impact in the economic crisis, the Chinese government announced that GDP growth remained at 8.7% in 2009. The highest contributor towards the Chinese GDP growth was the real estate industry (Yiping, 2011: 6). Presently in China, the real estate industry is a new economic growth point and the main industry in its Gross Domestic Product. Currently, the real estate market in China is facing unprecedented opportunities and challenges (Yiping, 2011: 6). From the above-mentioned statement by Yiping (2011: 6), it is evident that property development plays a major role in Gross Domestic Product (GDP) of global economies worldwide as well as in South Africa and that change in the supply and demand value of property impacts the performance of the property market. In times of property booms, the property market escalates and there is an under supply of property. This makes it a seller’s market, which stimulates the economy, as was the case during the period of 2004 to 2008. When the property bust hit in 2009, the world experienced an inevitable downturn in economic markets. This was known as the Global Financial Crisis (GFC) and was due to various factors such as: increased interest rates; increase of stricter mortgage bond approvals; recession and other possible financial regulatory factors. A downturn in property prices became evident and property development was negatively impacted (Reed, Sims and Cadman, 2015). This impact on the property sector caused a relative over supply of property, making it a limited buyer’s market and forced real estate agents, property developers and owners to decrease the price of property thus negatively affecting the GDP of the economy. This research was conducted by means of a review of the related literature as well as an empirical study. The empirical study was conducted with the use of a quantitative statistical approach. In this study, research questionnaires as a data collection tool were distributed to members of the sample population. The primary objective of the study was to develop a framework for the successful delivery of residential developments in South Africa, especially in the context of time. A descriptive survey was conducted among professional property development practitioners, real estate agencies, conveyancers and project managers in South Africa.
- Full Text:
- Date Issued: 2016
- Authors: Stander, Ruan
- Date: 2016
- Subjects: Planned communities -- South Africa Land subdivision -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/12703 , vital:27110
- Description: Property development is a complex activity, with a series of stages involving many players with differing objectives, all operating within the building cycle context and its interaction with business and credit cycles. Before developers commit to acquiring land and sign a building contract, they first evaluate the market to establish a project’s viability, and secure finance and planning consents. (Cadman and Topping, 1995: 27). The residential property developer must have a fair knowledge of the changes in the economy and be able to interpret data collected. This knowledge is critical in order to make good business decisions and for future project planning. Understanding the economic variables and the impact these have on households, provides knowledge to the consumer to assist with financial planning and future investment options (Vogel, 2012: 14). Currently, everyone is aware of the huge negative impact of the global economic crisis, especially concerning international investment companies in western countries. Many businesses have ceased operations and some investment banks have experienced large scale bankruptcy due to the economic crisis and resulting recession. The Chinese economy suffered losses in the crisis as well (Yiping, 2011: 6). Even though the export industry experienced a huge negative impact in the economic crisis, the Chinese government announced that GDP growth remained at 8.7% in 2009. The highest contributor towards the Chinese GDP growth was the real estate industry (Yiping, 2011: 6). Presently in China, the real estate industry is a new economic growth point and the main industry in its Gross Domestic Product. Currently, the real estate market in China is facing unprecedented opportunities and challenges (Yiping, 2011: 6). From the above-mentioned statement by Yiping (2011: 6), it is evident that property development plays a major role in Gross Domestic Product (GDP) of global economies worldwide as well as in South Africa and that change in the supply and demand value of property impacts the performance of the property market. In times of property booms, the property market escalates and there is an under supply of property. This makes it a seller’s market, which stimulates the economy, as was the case during the period of 2004 to 2008. When the property bust hit in 2009, the world experienced an inevitable downturn in economic markets. This was known as the Global Financial Crisis (GFC) and was due to various factors such as: increased interest rates; increase of stricter mortgage bond approvals; recession and other possible financial regulatory factors. A downturn in property prices became evident and property development was negatively impacted (Reed, Sims and Cadman, 2015). This impact on the property sector caused a relative over supply of property, making it a limited buyer’s market and forced real estate agents, property developers and owners to decrease the price of property thus negatively affecting the GDP of the economy. This research was conducted by means of a review of the related literature as well as an empirical study. The empirical study was conducted with the use of a quantitative statistical approach. In this study, research questionnaires as a data collection tool were distributed to members of the sample population. The primary objective of the study was to develop a framework for the successful delivery of residential developments in South Africa, especially in the context of time. A descriptive survey was conducted among professional property development practitioners, real estate agencies, conveyancers and project managers in South Africa.
- Full Text:
- Date Issued: 2016
Protection of personal information in the South African cloud computing environment: a framework for cloud computing adoption
- Authors: Skolmen, Dayne Edward
- Date: 2016
- Subjects: Cloud computing -- Security measures Data protection -- Law and legislation -- South Africa , Privacy, Right of
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/12747 , vital:27117
- Description: Cloud Computing has advanced to the point where it may be considered an attractive proposition for an increasing number of South African organisations, yet the adoption of Cloud Computing in South Africa remains relatively low. Many organisations have been hesitant to adopt Cloud solutions owing to a variety of inhibiting factors and concerns that have created mistrust in Cloud Computing. One of the top concerns identified is security within the Cloud Computing environment. The approaching commencement of new data protection legislation in South Africa, known as the Protection of Personal Information Act (POPI), may provide an ideal opportunity to address the information security-related inhibiting factors and foster a trust relationship between potential Cloud users and Cloud providers. POPI applies to anyone who processes personal information and regulates how they must handle, store and secure that information. POPI is considered to be beneficial to Cloud providers as it gives them the opportunity to build trust with potential Cloud users through achieving compliance and providing assurance. The aim of this dissertation is, therefore, to develop a framework for Cloud Computing adoption that will assist in mitigating the information security-related factors inhibiting Cloud adoption by fostering a trust relationship through compliance with the POPI Act. It is believed that such a framework would be useful to South African Cloud providers and could ultimately assist in the promotion of Cloud adoption in South Africa.
- Full Text:
- Date Issued: 2016
- Authors: Skolmen, Dayne Edward
- Date: 2016
- Subjects: Cloud computing -- Security measures Data protection -- Law and legislation -- South Africa , Privacy, Right of
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/12747 , vital:27117
- Description: Cloud Computing has advanced to the point where it may be considered an attractive proposition for an increasing number of South African organisations, yet the adoption of Cloud Computing in South Africa remains relatively low. Many organisations have been hesitant to adopt Cloud solutions owing to a variety of inhibiting factors and concerns that have created mistrust in Cloud Computing. One of the top concerns identified is security within the Cloud Computing environment. The approaching commencement of new data protection legislation in South Africa, known as the Protection of Personal Information Act (POPI), may provide an ideal opportunity to address the information security-related inhibiting factors and foster a trust relationship between potential Cloud users and Cloud providers. POPI applies to anyone who processes personal information and regulates how they must handle, store and secure that information. POPI is considered to be beneficial to Cloud providers as it gives them the opportunity to build trust with potential Cloud users through achieving compliance and providing assurance. The aim of this dissertation is, therefore, to develop a framework for Cloud Computing adoption that will assist in mitigating the information security-related factors inhibiting Cloud adoption by fostering a trust relationship through compliance with the POPI Act. It is believed that such a framework would be useful to South African Cloud providers and could ultimately assist in the promotion of Cloud adoption in South Africa.
- Full Text:
- Date Issued: 2016
Public private partnerships for the development of rural commercial beekeeping in the Amathole District Municipality
- Authors: Musisi, Lawrence Ssensalire
- Date: 2016
- Subjects: Public-private sector cooperation -- South Africa -- Amathole District Municipality , Bee culture -- South Africa -- Amathole District Municipality
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10948/7290 , vital:21315
- Description: Beekeeping and Public Private Partnerships (PPP) are the key words in this study. The study investigates the effectiveness of the use of PPP for the development of commercial beekeeping for the small-scale beekeepers in selected rural areas of the Amathole District Municipality. The small-scale beekeepers do not seem to be achieving the required results of meeting market demands for honey and other bee by-products, due to challenges associated with production and marketing of these products. Significant investment (physical, human and financial) is required to develop the capacity of the small scale beekeepers in order to generate honey for the market and associated revenue in any significant quantity. While job creation and poverty alleviation are key issues on the government’s service delivery agenda, specifically through entrepreneurial development, government alone does not have the capacity to provide all the necessary resources for the establishment of commercial beekeeping to the resource-poor small-scale beekeepers. Based on the results of this study, all respondents (beekeepers and officials) in the study had a general understanding of “Public Private Partnerships”. However, the general interpretation of PPP was where government, business and civil society are working together in areas of mutual interest to achieve common or complementary goals than the regulated PPP arrangements guided by the specialized Treasury PPP Unit, whereby contractual obligation between different role players is paramount. In the context of small-scale beekeeping, all respondents were in support of type of PPP, whereby the association or partnership would involve the transfer of substantial financial, technical and operational risks. Besides the numerous limitations faced by the small-scale beekeepers in the running of their beekeeping operations, the study identified the following as the major factors believed to be compromising and limiting the proper functioning of PPP.
- Full Text:
- Date Issued: 2016
- Authors: Musisi, Lawrence Ssensalire
- Date: 2016
- Subjects: Public-private sector cooperation -- South Africa -- Amathole District Municipality , Bee culture -- South Africa -- Amathole District Municipality
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10948/7290 , vital:21315
- Description: Beekeeping and Public Private Partnerships (PPP) are the key words in this study. The study investigates the effectiveness of the use of PPP for the development of commercial beekeeping for the small-scale beekeepers in selected rural areas of the Amathole District Municipality. The small-scale beekeepers do not seem to be achieving the required results of meeting market demands for honey and other bee by-products, due to challenges associated with production and marketing of these products. Significant investment (physical, human and financial) is required to develop the capacity of the small scale beekeepers in order to generate honey for the market and associated revenue in any significant quantity. While job creation and poverty alleviation are key issues on the government’s service delivery agenda, specifically through entrepreneurial development, government alone does not have the capacity to provide all the necessary resources for the establishment of commercial beekeeping to the resource-poor small-scale beekeepers. Based on the results of this study, all respondents (beekeepers and officials) in the study had a general understanding of “Public Private Partnerships”. However, the general interpretation of PPP was where government, business and civil society are working together in areas of mutual interest to achieve common or complementary goals than the regulated PPP arrangements guided by the specialized Treasury PPP Unit, whereby contractual obligation between different role players is paramount. In the context of small-scale beekeeping, all respondents were in support of type of PPP, whereby the association or partnership would involve the transfer of substantial financial, technical and operational risks. Besides the numerous limitations faced by the small-scale beekeepers in the running of their beekeeping operations, the study identified the following as the major factors believed to be compromising and limiting the proper functioning of PPP.
- Full Text:
- Date Issued: 2016
Purification and characterization of β-mannanase from Aspergillus terreus and its applicability in depolymerization of mannans and saccharification of lignocellulosic biomass
- Soni, Hemant, Rawat, Hemant Kumar, Kango, Naveen
- Authors: Soni, Hemant , Rawat, Hemant Kumar , Kango, Naveen
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/66167 , vital:28912 , https://doi.org/10.1007/s13205-016-0454-2
- Description: publisher version , Aspergillus terreus FBCC 1369 was grown in solid-state culture under statistically optimized conditions. β-Mannanase was purified to apparent homogeneity by ultrafiltration, anion exchange and gel filtration chromatography. A purification factor of 10.3-fold was achieved, with the purified enzyme exhibiting specific activity of 53 U/mg protein. The purified β-mannanase was optimally active at pH 7.0 and 70 °C and displayed stability over a broad pH range of 4.0–8.0 and a 30 min half-life at 80 °C. The molecular weight of β-mannanase was calculated as ~49 kDa by SDS-PAGE. The enzyme exhibited K m and V maxvalues of 5.9 mg/ml and 39.42 µmol/ml/min, respectively. β-Mannanase activity was stimulated by β-mercaptoethanol and strongly inhibited by Hg2+. The β-Mannanase did not hydrolyze mannobiose and mannotriose, but only mannotetraose liberating mannose and mannotriose. This indicated that at least four mannose residues were required for catalytic activity. Oligosaccharide with a degree of polymerization (DP) three was the predominant product in the case of locust bean gum (16.5 %) and guar gum (15.8 %) hydrolysis. However, the enzyme liberated DP4 oligosaccharide (24 %) exclusively from konjac gum. This property can be exploited in oligosaccharides production with DP 3–4. β-Mannanase hydrolyzed pretreated lignocelluloses and liberated reducing sugars (% theoretical yield) from copra meal (30 %). This property is an important factor for the bioconversion of the biomass.
- Full Text: false
- Date Issued: 2016
- Authors: Soni, Hemant , Rawat, Hemant Kumar , Kango, Naveen
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/66167 , vital:28912 , https://doi.org/10.1007/s13205-016-0454-2
- Description: publisher version , Aspergillus terreus FBCC 1369 was grown in solid-state culture under statistically optimized conditions. β-Mannanase was purified to apparent homogeneity by ultrafiltration, anion exchange and gel filtration chromatography. A purification factor of 10.3-fold was achieved, with the purified enzyme exhibiting specific activity of 53 U/mg protein. The purified β-mannanase was optimally active at pH 7.0 and 70 °C and displayed stability over a broad pH range of 4.0–8.0 and a 30 min half-life at 80 °C. The molecular weight of β-mannanase was calculated as ~49 kDa by SDS-PAGE. The enzyme exhibited K m and V maxvalues of 5.9 mg/ml and 39.42 µmol/ml/min, respectively. β-Mannanase activity was stimulated by β-mercaptoethanol and strongly inhibited by Hg2+. The β-Mannanase did not hydrolyze mannobiose and mannotriose, but only mannotetraose liberating mannose and mannotriose. This indicated that at least four mannose residues were required for catalytic activity. Oligosaccharide with a degree of polymerization (DP) three was the predominant product in the case of locust bean gum (16.5 %) and guar gum (15.8 %) hydrolysis. However, the enzyme liberated DP4 oligosaccharide (24 %) exclusively from konjac gum. This property can be exploited in oligosaccharides production with DP 3–4. β-Mannanase hydrolyzed pretreated lignocelluloses and liberated reducing sugars (% theoretical yield) from copra meal (30 %). This property is an important factor for the bioconversion of the biomass.
- Full Text: false
- Date Issued: 2016
Quantifying the water savings benefit of water hyacinth (Eichhornia crassipes) control in the Vaalharts Irrigation Scheme
- Authors: Arp, Reinhardt
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEcon
- Identifier: http://hdl.handle.net/10962/409 , vital:19956
- Description: Global fresh water resources are under increasing pressure from an ever-growing population and global economic development, highlighting the need for sustainable water management. Effective sustainable management must also control any additional factors that may aggravate the water scarcity problem. Invasive alien plants present such an aggravating threat, and pose a particular problem for water scarce countries in particular. South Africa is not immune to this global phenomenon, with plant invasions estimated to carry an annual loss of R5.8 billion in water provisioning services. Given the country’s semi-arid climate, and relative water scarcity, the threat presented by invasive plants needs to managed effectively for the sustainability of the countries already scarce fresh water resources. One species in particular, water hyacinth (Eichhornia crassipes), is regarded as one of the most destructive aquatic weeds in the world. The threat presented by this weed is of particular concern for economically productive water resources, such as irrigation water. Through high levels of evapotranspiration, water hyacinth leads to substantial water losses that could otherwise have been used more productively, thereby creating an externality on irrigation fed agriculture. An economic valuation of irrigation water and the loss thereof from water hyacinth, is a step towards improved water management and alien plant control. This will provide policy makers, stakeholders and irrigation managers with the relevant information they need to improve sustainability, allocate scarce resources more efficiently and enhance the returns to water. This thesis provides such an evaluation of the benefits of water hyacinth control, using the Vaalharts Irrigation Scheme as a case study. The benefit of water hyacinth control programmes are essentially ‘avoided costs’ of no control. The study quantified the water saving benefits of water hyacinth control for the Vaalharts Irrigation Scheme at Warrenton Weir on the Vaal River, South Africa. Three evapotranspiration to evaporation (ET:EW) ratios at three levels of invasion (100; 50 and 25% cover) were used to estimate the net annual water loss at Warrenton Weir. A Residual Value Method was employed to estimate the average production value of irrigation water, to serve as a proxy for the value of water lost via evapotranspiration by water hyacinth. The average production value of irrigation water for the Vaalharts was estimated to be R300/m3, which translated into an annual benefit of between R500 million and R9 billion. However, due to various limitations associated with the valuation method, the inflationary bias of estimating the average value of water and the unlikelihood of ET:EW ratios being larger than 1.4 in reality, it was suggested that R500 million was the more realistic value of the benefit of control. Despite being a conservative estimation, the benefit still equated to a quarter of the annual production value of the irrigation scheme, suggesting the water hyacinth could potentially reduce the productivity of the scheme by as much as 25% in the event of a scarcity of water on the scheme. The results of this research highlight the need for invasive plant control, especially where invasions affect economically productive water resources. Therefore, it is recommended that alien plant control policy prioritise invasions of this nature, as they present significant costs to the economy yet carry substantial benefits.
- Full Text:
- Date Issued: 2016
- Authors: Arp, Reinhardt
- Date: 2016
- Language: English
- Type: Thesis , Masters , MEcon
- Identifier: http://hdl.handle.net/10962/409 , vital:19956
- Description: Global fresh water resources are under increasing pressure from an ever-growing population and global economic development, highlighting the need for sustainable water management. Effective sustainable management must also control any additional factors that may aggravate the water scarcity problem. Invasive alien plants present such an aggravating threat, and pose a particular problem for water scarce countries in particular. South Africa is not immune to this global phenomenon, with plant invasions estimated to carry an annual loss of R5.8 billion in water provisioning services. Given the country’s semi-arid climate, and relative water scarcity, the threat presented by invasive plants needs to managed effectively for the sustainability of the countries already scarce fresh water resources. One species in particular, water hyacinth (Eichhornia crassipes), is regarded as one of the most destructive aquatic weeds in the world. The threat presented by this weed is of particular concern for economically productive water resources, such as irrigation water. Through high levels of evapotranspiration, water hyacinth leads to substantial water losses that could otherwise have been used more productively, thereby creating an externality on irrigation fed agriculture. An economic valuation of irrigation water and the loss thereof from water hyacinth, is a step towards improved water management and alien plant control. This will provide policy makers, stakeholders and irrigation managers with the relevant information they need to improve sustainability, allocate scarce resources more efficiently and enhance the returns to water. This thesis provides such an evaluation of the benefits of water hyacinth control, using the Vaalharts Irrigation Scheme as a case study. The benefit of water hyacinth control programmes are essentially ‘avoided costs’ of no control. The study quantified the water saving benefits of water hyacinth control for the Vaalharts Irrigation Scheme at Warrenton Weir on the Vaal River, South Africa. Three evapotranspiration to evaporation (ET:EW) ratios at three levels of invasion (100; 50 and 25% cover) were used to estimate the net annual water loss at Warrenton Weir. A Residual Value Method was employed to estimate the average production value of irrigation water, to serve as a proxy for the value of water lost via evapotranspiration by water hyacinth. The average production value of irrigation water for the Vaalharts was estimated to be R300/m3, which translated into an annual benefit of between R500 million and R9 billion. However, due to various limitations associated with the valuation method, the inflationary bias of estimating the average value of water and the unlikelihood of ET:EW ratios being larger than 1.4 in reality, it was suggested that R500 million was the more realistic value of the benefit of control. Despite being a conservative estimation, the benefit still equated to a quarter of the annual production value of the irrigation scheme, suggesting the water hyacinth could potentially reduce the productivity of the scheme by as much as 25% in the event of a scarcity of water on the scheme. The results of this research highlight the need for invasive plant control, especially where invasions affect economically productive water resources. Therefore, it is recommended that alien plant control policy prioritise invasions of this nature, as they present significant costs to the economy yet carry substantial benefits.
- Full Text:
- Date Issued: 2016
Quantitative analysis of time-resolved infrared stimulated luminescence in feldspars
- Pagonis, Vasilis, Ankjærgaard, Christina, Jain, Mayank, Chithambo, Makaiko L
- Authors: Pagonis, Vasilis , Ankjærgaard, Christina , Jain, Mayank , Chithambo, Makaiko L
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124616 , vital:35638 , DOI: 10.1016/j.physb.2016.06.013
- Description: Time-resolved infrared-stimulated luminescence (TR-IRSL) from feldspar samples is of importance in the field of luminescence dating, since it provides information on the luminescence mechanism in these materials. In this paper we present new analytical equations which can be used to analyze TR-IRSL signals, both during and after short infrared stimulation pulses. The equations are developed using a recently proposed kinetic model, which describes localized electronic recombination via tunneling between trapped electrons and recombination centers in luminescent materials. Recombination is assumed to take place from the excited state of the trapped electron to the nearest-neighbor center within a random distribution of luminescence recombination centers. Different possibilities are examined within the model, depending on the relative importance of electron de-excitation and recombination. The equations are applied to experimental TR-IRSL data of natural feldspars, and good agreement is found between experimental and modeling results.
- Full Text:
- Date Issued: 2016
- Authors: Pagonis, Vasilis , Ankjærgaard, Christina , Jain, Mayank , Chithambo, Makaiko L
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124616 , vital:35638 , DOI: 10.1016/j.physb.2016.06.013
- Description: Time-resolved infrared-stimulated luminescence (TR-IRSL) from feldspar samples is of importance in the field of luminescence dating, since it provides information on the luminescence mechanism in these materials. In this paper we present new analytical equations which can be used to analyze TR-IRSL signals, both during and after short infrared stimulation pulses. The equations are developed using a recently proposed kinetic model, which describes localized electronic recombination via tunneling between trapped electrons and recombination centers in luminescent materials. Recombination is assumed to take place from the excited state of the trapped electron to the nearest-neighbor center within a random distribution of luminescence recombination centers. Different possibilities are examined within the model, depending on the relative importance of electron de-excitation and recombination. The equations are applied to experimental TR-IRSL data of natural feldspars, and good agreement is found between experimental and modeling results.
- Full Text:
- Date Issued: 2016
Quantitative microstructural evaluation of 12 Cr creep aged steels after welding
- Marx, Genevéve, Neethling, Jan
- Authors: Marx, Genevéve , Neethling, Jan
- Date: 2016
- Subjects: Stainless steel -- Welding , Electron microscopy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/7232 , vital:21307
- Description: This dissertation focuses on the quantitative microstructural evaluation of new and creep aged X20 (12 Cr) stainless steel after welding. X20 stainless steel has been widely used in the high temperature and pressure pipework of coal-fired power plants. Consequently, this material has to withstand extreme conditions of high temperature and stress during service exposure. Under these conditions, creep deteriorates the strength of the material. The material’s resistance to creep damage due to its microstructure can be quantitatively described by the back-stress. There are four microstructural contributions to the back-stress: Precipitate Hardening, Sub-Boundary Hardening, Solid-Solution Hardening and Dislocation Hardening. Fusion welding is performed on creep aged materials when a component needs to be replaced. This high temperature process results in the formation of different microstructural regions within the weldment. These creep damaged components have a weldability limit as set by the life management strategy of the power plant company. Measuring techniques capable of quantifying the microstructural contributions (precipitates, subgrains and dislocations) were developed and evaluated in this study. These techniques were then used to characterise the different microstructural regions within a new and creep aged X20 steel weldment. Differences in the microstructure of the new and creep aged X20 steel was illustrated by the results of this study. The measured size and number densities of the precipitates in the creep aged X20 material showed that there is a decrease in PH during creep exposure. There was a decrease in SBH and DH stress for the creep aged X20 material due to coarsening of the subgrains and annealing of dislocations during creep exposure. The quantitative techniques demonstrated in this study opens up the possibility to perform life assessment on weldments with inhomogeneous microstructures by following a microstructural based approach.
- Full Text:
- Date Issued: 2016
- Authors: Marx, Genevéve , Neethling, Jan
- Date: 2016
- Subjects: Stainless steel -- Welding , Electron microscopy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/7232 , vital:21307
- Description: This dissertation focuses on the quantitative microstructural evaluation of new and creep aged X20 (12 Cr) stainless steel after welding. X20 stainless steel has been widely used in the high temperature and pressure pipework of coal-fired power plants. Consequently, this material has to withstand extreme conditions of high temperature and stress during service exposure. Under these conditions, creep deteriorates the strength of the material. The material’s resistance to creep damage due to its microstructure can be quantitatively described by the back-stress. There are four microstructural contributions to the back-stress: Precipitate Hardening, Sub-Boundary Hardening, Solid-Solution Hardening and Dislocation Hardening. Fusion welding is performed on creep aged materials when a component needs to be replaced. This high temperature process results in the formation of different microstructural regions within the weldment. These creep damaged components have a weldability limit as set by the life management strategy of the power plant company. Measuring techniques capable of quantifying the microstructural contributions (precipitates, subgrains and dislocations) were developed and evaluated in this study. These techniques were then used to characterise the different microstructural regions within a new and creep aged X20 steel weldment. Differences in the microstructure of the new and creep aged X20 steel was illustrated by the results of this study. The measured size and number densities of the precipitates in the creep aged X20 material showed that there is a decrease in PH during creep exposure. There was a decrease in SBH and DH stress for the creep aged X20 material due to coarsening of the subgrains and annealing of dislocations during creep exposure. The quantitative techniques demonstrated in this study opens up the possibility to perform life assessment on weldments with inhomogeneous microstructures by following a microstructural based approach.
- Full Text:
- Date Issued: 2016
Reaching the isolated through the design of air clinic facility in Moshoeshoe II, Maseru Lesotho pre-hospital care and transport
- Authors: Lesia, Tumelo Emmanuel
- Date: 2016
- Subjects: Medical centers -- Lesotho -- Maseru -- Designs and plans Health facilities -- Lesotho -- Maseru
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39284 , vital:35071
- Description: The purpose of this research is to develop a design of an Air Clinic Facility, to reach the isolated people in the highlands of Lesotho. This came through the realization of the access barrier created by the mountainous terrain, making it difficult to supply medical care to isolated communities. The aim of this research is to investigate a suitable architectural approach to an air clinic facility as a device that will make reaching the isolated effortless. Emergency healthcare architecture principles have been employed as a remedial strategy to the design. The motive behind this treatise originates from the authors desire to understand the role that architecture can play to solve the accessibility issues facing the uplands. The choice to address the realm of emergency healthcare architecture also originates from the desire to understand the effect that architecture can have on the lives of ordinary people. The main architectural intervention will focus on the process of accessing and using the air clinic facility, whereby a mutually beneficial interaction between the program and the context will be realised.
- Full Text:
- Date Issued: 2016
- Authors: Lesia, Tumelo Emmanuel
- Date: 2016
- Subjects: Medical centers -- Lesotho -- Maseru -- Designs and plans Health facilities -- Lesotho -- Maseru
- Language: English
- Type: Thesis , Masters , MArch
- Identifier: http://hdl.handle.net/10948/39284 , vital:35071
- Description: The purpose of this research is to develop a design of an Air Clinic Facility, to reach the isolated people in the highlands of Lesotho. This came through the realization of the access barrier created by the mountainous terrain, making it difficult to supply medical care to isolated communities. The aim of this research is to investigate a suitable architectural approach to an air clinic facility as a device that will make reaching the isolated effortless. Emergency healthcare architecture principles have been employed as a remedial strategy to the design. The motive behind this treatise originates from the authors desire to understand the role that architecture can play to solve the accessibility issues facing the uplands. The choice to address the realm of emergency healthcare architecture also originates from the desire to understand the effect that architecture can have on the lives of ordinary people. The main architectural intervention will focus on the process of accessing and using the air clinic facility, whereby a mutually beneficial interaction between the program and the context will be realised.
- Full Text:
- Date Issued: 2016
Recapitalisation and development programme for cattle producing farmers in the Eastern Cape
- Authors: Sontundu, Qaqamba
- Date: 2016
- Subjects: Agriculture -- Economic aspects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Land reform -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/12790 , vital:27121
- Description: This thesis examines the impact of the recapitalisation and development programme on cattle producing farmers in Joe Gqabi and Chris Hani Districts. This research is based on the insight that most of the Eastern Cape cattle producing farmers are facing financial problems and their farms are dilapidated even though there are interventions from the Department of Rural Development and Agrarian Reform and Rural Development and Land Reform through programmes such as CASP and RADP for rescuing the cattle producing farmers. The major challenges faced by the cattle producing farmers into getting the funding will be established in this study. The main focus is on the farms that have already got the funding and also on the ones that are still in the pipeline for being funded by the Department of Rural Development and Land Reform. To a lesser extent, the thesis draws on findings from careful considerations of case studies comprising ten farms, thus five farms from Joe Gqabi and five from Chris Hani Districts. The research methods under this research design yielded data that was descriptive and exploratory based on human experiences and are associated with discovering changes in situations. The research findings show that delays in releasing recapitalisation and development funds for land reform beneficiaries have been recognised as one of the main reasons for the collapse of land reform projects. In most cases the funds are arriving long after they were needed for important faming activities. The delays are also leading to permanent closure of the farms. Therefore, it is essential for the success of land reform programmes to ensure that the production model is designed so as to generate benefits for land reform beneficiaries. This thesis is concluded by making recommendations to the Department of Rural Development and Land Reform in order to address the identified Recapitalisation and Development Funding challenges as well as to identify what can be considered as effective financial support to the land reform projects.
- Full Text:
- Date Issued: 2016
- Authors: Sontundu, Qaqamba
- Date: 2016
- Subjects: Agriculture -- Economic aspects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Land reform -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/12790 , vital:27121
- Description: This thesis examines the impact of the recapitalisation and development programme on cattle producing farmers in Joe Gqabi and Chris Hani Districts. This research is based on the insight that most of the Eastern Cape cattle producing farmers are facing financial problems and their farms are dilapidated even though there are interventions from the Department of Rural Development and Agrarian Reform and Rural Development and Land Reform through programmes such as CASP and RADP for rescuing the cattle producing farmers. The major challenges faced by the cattle producing farmers into getting the funding will be established in this study. The main focus is on the farms that have already got the funding and also on the ones that are still in the pipeline for being funded by the Department of Rural Development and Land Reform. To a lesser extent, the thesis draws on findings from careful considerations of case studies comprising ten farms, thus five farms from Joe Gqabi and five from Chris Hani Districts. The research methods under this research design yielded data that was descriptive and exploratory based on human experiences and are associated with discovering changes in situations. The research findings show that delays in releasing recapitalisation and development funds for land reform beneficiaries have been recognised as one of the main reasons for the collapse of land reform projects. In most cases the funds are arriving long after they were needed for important faming activities. The delays are also leading to permanent closure of the farms. Therefore, it is essential for the success of land reform programmes to ensure that the production model is designed so as to generate benefits for land reform beneficiaries. This thesis is concluded by making recommendations to the Department of Rural Development and Land Reform in order to address the identified Recapitalisation and Development Funding challenges as well as to identify what can be considered as effective financial support to the land reform projects.
- Full Text:
- Date Issued: 2016
Recombinant expression, purification and in vitro interaction analysis of HOP and RhoC
- Vaaltyn, Michaelone Chantelle
- Authors: Vaaltyn, Michaelone Chantelle
- Date: 2016
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/64523 , vital:28555
- Description: Expected release date-May 2019
- Full Text:
- Date Issued: 2016
- Authors: Vaaltyn, Michaelone Chantelle
- Date: 2016
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/64523 , vital:28555
- Description: Expected release date-May 2019
- Full Text:
- Date Issued: 2016
Recommendations for the future of recreational fisheries to prepare the social‐ecological system to cope with change
- Arlinghaus, Robert, Cooke, Steven J, Sutton, S G, Danylchuk, A J, Potts, Warren M, Freire, K D M, Alós, J, Da Silva, E T, Cowx, Ian G, Van Anrooy, R
- Authors: Arlinghaus, Robert , Cooke, Steven J , Sutton, S G , Danylchuk, A J , Potts, Warren M , Freire, K D M , Alós, J , Da Silva, E T , Cowx, Ian G , Van Anrooy, R
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125810 , vital:35819 , https://doi.10.1111/fme.12191
- Description: This paper presents conclusions and recommendations that emerged from the 7th World Recreational Fishing Conference (WRFC) held in Campinas, Brazil in September 2014. Based on the recognition of the immense social and economic importance of recreational fisheries coupled with weaknesses in robust information about these fisheries in many areas of the world, particularly in many economies in transition, it is recommended to increase effort to build effective governance arrangements and improve monitoring and assessment frameworks in data-poor situations. Moreover, there is a need to increase interdisciplinary studies that will foster a systematic understanding of recreational fisheries as complex adaptive social-ecological systems. To promote sustainable recreational fisheries on a global scale, it is recommended the detailed suggestions for governance and management outlined in the United Nations Food and Agricultural Organization Technical Guidelines for Responsible Fisheries: Recreational Fisheries are followed.
- Full Text:
- Date Issued: 2016
- Authors: Arlinghaus, Robert , Cooke, Steven J , Sutton, S G , Danylchuk, A J , Potts, Warren M , Freire, K D M , Alós, J , Da Silva, E T , Cowx, Ian G , Van Anrooy, R
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/125810 , vital:35819 , https://doi.10.1111/fme.12191
- Description: This paper presents conclusions and recommendations that emerged from the 7th World Recreational Fishing Conference (WRFC) held in Campinas, Brazil in September 2014. Based on the recognition of the immense social and economic importance of recreational fisheries coupled with weaknesses in robust information about these fisheries in many areas of the world, particularly in many economies in transition, it is recommended to increase effort to build effective governance arrangements and improve monitoring and assessment frameworks in data-poor situations. Moreover, there is a need to increase interdisciplinary studies that will foster a systematic understanding of recreational fisheries as complex adaptive social-ecological systems. To promote sustainable recreational fisheries on a global scale, it is recommended the detailed suggestions for governance and management outlined in the United Nations Food and Agricultural Organization Technical Guidelines for Responsible Fisheries: Recreational Fisheries are followed.
- Full Text:
- Date Issued: 2016
Reconfiguring international pharmaceutical patent protection principles to combat linkage evergreening :|b'de-linking the evergreen' and proposing a solution for developing countries
- Authors: Omino, Akinyi Melissa Anne
- Date: 2016
- Subjects: Patent medicines--Developing countries Drugs--Developing countries Patent laws and legislation--Developing countries
- Language: English
- Type: Thesis , Masters , Law
- Identifier: http://hdl.handle.net/10353/11663 , vital:39094
- Description: Recent remarks made by the current South African Minister of Health describing as a plot to ‘genocide’ a leaked document allegedly authored by a group of multinational pharmaceutical companies in response to the country’s Draft IP Policy is evidence of the importance of both pharmaceutical patents and the national intellectual property policies underpinning their legislative landscape. The proliferation of linkage evergreening provisions through multilateral agreements has also recently become a trend globally. Evergreening has been described as the various ways in which pharmaceutical patent owners use the law and related regulatory processes to extend the patent term of their high profit-making pharmaceuticals. The evergreening phenomenon has also been referred to as patent evergreening, which involves the practice of obtaining multiple patents that cover different aspects of the same product. Linkage evergreening however specifically refers to the phenomenon where generics pharmaceutical manufacturers cannot receive regulatory approval or marketing authorization for developing a pharmaceutical product that is still protected by a patent. The evergreening phenomenon is achieved through Free Trade Agreements (FTAs) which require participating nations to incorporate linkage and other intellectual property provisions in their national patent systems in exchange for preferential trade terms. These agreements generally provide for stronger provisions than the Agreement on Trade Related Aspects of Intellectual Property Rights (TRIPS) and are thus referred to as “TRIPS Plus". Not surprisingly, these “TRIPS Plus” FTAs are negotiated outside the purview of the World Trade Organization (WTO). This thesis examines the role, legality and impact of bilateral free trade agreements which include wide ranging provisions that allow the proliferation of linkage evergreening and thereby frustrate and delay generic medicines’ market entry, prolong and expand patent protections and constrain the exercise of TRIPS flexibilities intended to support access and promote public health. The free trade agreements discussed include the North American Free Trade Agreement (NAFTA), the US - Australia Free Trade Agreement (AUSFTA) and the US - Korea Free Trade Agreement (KORUSFTA). This study also examines the Economic Partnership Agreements (EPAs) in the context of access to medicines and linkage evergreening in developing countries and LDCs in Africa, with a focus on the recently concluded EU – SADC EPA and the EU-EAC EPA still under negotiation. Relevant legislation, policy documents and case law from South Africa, India, the EAC and ARIPO are also explored in this study to gauge their potential to effectively address the challenges of access to medicines and evergreening. This thesis offers a solution to evergreening through the recommendation of guidelines which show law and policy makers how to curtail linkage evergreening. More specifically, it is hoped that the said guidelines as well as the discussion and analyses presented in this thesis will assist in the development of national and regional intellectual property policies, amendment of national and regional legislative instruments as well as the negotiation of regional trade agreements aimed at securing the interests of LDCs and developing countries. It is further hoped that the recommendations made will contribute to ongoing efforts to improve access to affordable medicines in the developing world.
- Full Text:
- Date Issued: 2016
- Authors: Omino, Akinyi Melissa Anne
- Date: 2016
- Subjects: Patent medicines--Developing countries Drugs--Developing countries Patent laws and legislation--Developing countries
- Language: English
- Type: Thesis , Masters , Law
- Identifier: http://hdl.handle.net/10353/11663 , vital:39094
- Description: Recent remarks made by the current South African Minister of Health describing as a plot to ‘genocide’ a leaked document allegedly authored by a group of multinational pharmaceutical companies in response to the country’s Draft IP Policy is evidence of the importance of both pharmaceutical patents and the national intellectual property policies underpinning their legislative landscape. The proliferation of linkage evergreening provisions through multilateral agreements has also recently become a trend globally. Evergreening has been described as the various ways in which pharmaceutical patent owners use the law and related regulatory processes to extend the patent term of their high profit-making pharmaceuticals. The evergreening phenomenon has also been referred to as patent evergreening, which involves the practice of obtaining multiple patents that cover different aspects of the same product. Linkage evergreening however specifically refers to the phenomenon where generics pharmaceutical manufacturers cannot receive regulatory approval or marketing authorization for developing a pharmaceutical product that is still protected by a patent. The evergreening phenomenon is achieved through Free Trade Agreements (FTAs) which require participating nations to incorporate linkage and other intellectual property provisions in their national patent systems in exchange for preferential trade terms. These agreements generally provide for stronger provisions than the Agreement on Trade Related Aspects of Intellectual Property Rights (TRIPS) and are thus referred to as “TRIPS Plus". Not surprisingly, these “TRIPS Plus” FTAs are negotiated outside the purview of the World Trade Organization (WTO). This thesis examines the role, legality and impact of bilateral free trade agreements which include wide ranging provisions that allow the proliferation of linkage evergreening and thereby frustrate and delay generic medicines’ market entry, prolong and expand patent protections and constrain the exercise of TRIPS flexibilities intended to support access and promote public health. The free trade agreements discussed include the North American Free Trade Agreement (NAFTA), the US - Australia Free Trade Agreement (AUSFTA) and the US - Korea Free Trade Agreement (KORUSFTA). This study also examines the Economic Partnership Agreements (EPAs) in the context of access to medicines and linkage evergreening in developing countries and LDCs in Africa, with a focus on the recently concluded EU – SADC EPA and the EU-EAC EPA still under negotiation. Relevant legislation, policy documents and case law from South Africa, India, the EAC and ARIPO are also explored in this study to gauge their potential to effectively address the challenges of access to medicines and evergreening. This thesis offers a solution to evergreening through the recommendation of guidelines which show law and policy makers how to curtail linkage evergreening. More specifically, it is hoped that the said guidelines as well as the discussion and analyses presented in this thesis will assist in the development of national and regional intellectual property policies, amendment of national and regional legislative instruments as well as the negotiation of regional trade agreements aimed at securing the interests of LDCs and developing countries. It is further hoped that the recommendations made will contribute to ongoing efforts to improve access to affordable medicines in the developing world.
- Full Text:
- Date Issued: 2016
Refuse exchange: the design of of waste management and recycling facility for the 5th avenue, Walmer waste tip in Port Elizabeth/Nelson Mandela Bay Metro
- Authors: Hunter, Casey Lauren
- Date: 2016
- Subjects: Refuse disposal facilities -- South Africa -- Port Elizabeth Waste disposal sites -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/38808 , vital:34975
- Description: Our cities can be viewed as urban mines, full of resources that already exist within the urban fabric. This treatise focuses on the design of a recycling facility to be used as a tool for metabolising waste and separating it into valuable resources. It then goes further into the uses of waste and its up-cycling in the realms of (I would say industrial products, arts and crafts and even in the fabric of architecture. The treatise aims to perpetuate Regenerative Sustainability and its application in design and architecture. It tries to understand the impact waste has on social, economic and environmental aspects of the community and how the better management of waste can positively affect these aspects of modern urban life. The study is separated into two parts. The first part is research into the topic and the second part is the application of this research into the design. The research section is broken down into two main chapters that investigate various issues and processes relating to the nature of the program and the nature of the site. The main focus of part two is on the conceptual development that will lead to a final design. Chapter one is an introduction to the theoretical discourse to be discussed in this project. It also discuses the connotations, history and development in waste management. Chapter two discusses the various programmatic concerns relating to the Waste Management and Recycling Facility and a paradigm shift towards integrated infrastructural development in an urban environment. Chapter three analyses site criteria to choose a site best suited to this program. It then analyses precedent studies of projects done in similar contextual environments. Through this a conclusion is made about the nature of the site. It considers how this project can be developed from the organising elements and the opportunities for improvement and the re-scripting of the site. The final chapter of part two explains the process used to arrive at a final design. It starts with the development of an urban intervention and the vision for the project. It goes on to explain the nature of the spaces in the facility, their various connections and locations in relation to the site and other related spaces. This chapter then develops the plan and physical form as well as the tectonic and materials to be implemented in the facility. The themes of the project are to [RE] cycle, [RE]cover, [RE]manufacture and [RE]materialise. Recycle refer to the program of the building and the physical act of separating waste. Recover refers to the way the facility will try to extract energy and useful resources from the waste stream such as biogas, electricity and fertiliser from anaerobic digesters. Thirdly, remanufacture refers to the up-cycling of waste in order to improve its value by transforming it into art, crafts and even building materials. Finally, the ultimate goal of the project is to rematerialise the connotations of waste in society, changing its perception from a dirty, unwanted by-product of society to a minefield of possibilities.
- Full Text:
- Date Issued: 2016
- Authors: Hunter, Casey Lauren
- Date: 2016
- Subjects: Refuse disposal facilities -- South Africa -- Port Elizabeth Waste disposal sites -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/38808 , vital:34975
- Description: Our cities can be viewed as urban mines, full of resources that already exist within the urban fabric. This treatise focuses on the design of a recycling facility to be used as a tool for metabolising waste and separating it into valuable resources. It then goes further into the uses of waste and its up-cycling in the realms of (I would say industrial products, arts and crafts and even in the fabric of architecture. The treatise aims to perpetuate Regenerative Sustainability and its application in design and architecture. It tries to understand the impact waste has on social, economic and environmental aspects of the community and how the better management of waste can positively affect these aspects of modern urban life. The study is separated into two parts. The first part is research into the topic and the second part is the application of this research into the design. The research section is broken down into two main chapters that investigate various issues and processes relating to the nature of the program and the nature of the site. The main focus of part two is on the conceptual development that will lead to a final design. Chapter one is an introduction to the theoretical discourse to be discussed in this project. It also discuses the connotations, history and development in waste management. Chapter two discusses the various programmatic concerns relating to the Waste Management and Recycling Facility and a paradigm shift towards integrated infrastructural development in an urban environment. Chapter three analyses site criteria to choose a site best suited to this program. It then analyses precedent studies of projects done in similar contextual environments. Through this a conclusion is made about the nature of the site. It considers how this project can be developed from the organising elements and the opportunities for improvement and the re-scripting of the site. The final chapter of part two explains the process used to arrive at a final design. It starts with the development of an urban intervention and the vision for the project. It goes on to explain the nature of the spaces in the facility, their various connections and locations in relation to the site and other related spaces. This chapter then develops the plan and physical form as well as the tectonic and materials to be implemented in the facility. The themes of the project are to [RE] cycle, [RE]cover, [RE]manufacture and [RE]materialise. Recycle refer to the program of the building and the physical act of separating waste. Recover refers to the way the facility will try to extract energy and useful resources from the waste stream such as biogas, electricity and fertiliser from anaerobic digesters. Thirdly, remanufacture refers to the up-cycling of waste in order to improve its value by transforming it into art, crafts and even building materials. Finally, the ultimate goal of the project is to rematerialise the connotations of waste in society, changing its perception from a dirty, unwanted by-product of society to a minefield of possibilities.
- Full Text:
- Date Issued: 2016
Registration, returns, assessments and records
- Arendse, Jacqueline A, Clegg, David, Williams, Robert C
- Authors: Arendse, Jacqueline A , Clegg, David , Williams, Robert C
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/131060 , vital:36520 , https://store.lexisnexis.co.za/products/silke-on-tax-administration-skuZASKUPG1440
- Description: This chapter covers the administrative provisions dealing with the requirements for certain persons to register with SARS, the submission of tax returns, the raising of assessments and the maintenance of records.
- Full Text: false
- Date Issued: 2016
- Authors: Arendse, Jacqueline A , Clegg, David , Williams, Robert C
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , book chapter
- Identifier: http://hdl.handle.net/10962/131060 , vital:36520 , https://store.lexisnexis.co.za/products/silke-on-tax-administration-skuZASKUPG1440
- Description: This chapter covers the administrative provisions dealing with the requirements for certain persons to register with SARS, the submission of tax returns, the raising of assessments and the maintenance of records.
- Full Text: false
- Date Issued: 2016
Reimagining curriculum through a Bernsteinian lens: rethinking the canon in Political Science
- Authors: Clarence, Sherran
- Date: 2016
- Language: English
- Type: text , conference publication
- Identifier: http://hdl.handle.net/10962/66961 , vital:29006
- Full Text:
- Date Issued: 2016
- Authors: Clarence, Sherran
- Date: 2016
- Language: English
- Type: text , conference publication
- Identifier: http://hdl.handle.net/10962/66961 , vital:29006
- Full Text:
- Date Issued: 2016
Relationships between cash management and growth of informal businesses in Uganda
- Nuwagaba, Geoffrey, Struwig, Miemie
- Authors: Nuwagaba, Geoffrey , Struwig, Miemie
- Date: 2016
- Subjects: Cash management -- Uganda , Informal sector (Economics) -- Uganda , Small business -- Uganda
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/12319 , vital:27054
- Description: This study investigates the relationships between cash management and growth of informal businesses in Uganda. Whereas anecdotal evidence has for some time revealed that informal businesses in Uganda are faced with the challenge of cash management, no specific studies have been conducted to investigate how this relates to the growth of businesses where evidence has also indicated that most of these businesses do not exist for very long. In particular, the study assesses and explores the growth levels of informal businesses in terms of sales volume, growth in employment and length of existence. The study investigates the various ways in which informal businesses manage their cash and investigates the various internal and external factors that moderate cash management and the growth of the informal businesses. Furthermore, the study proposes a possible framework to manage cash in informal businesses and makes recommendations to informal business owners and managers on how to effectively manage cash in order to stimulate business growth. In order to investigate the relationships between the variables, an empirical investigation was undertaken. Based on the literature review, the primary objective of the study was formulated to investigate the relationships between cash management and growth of informal businesses amidst the external and internal environment in Uganda in order to suggest a framework for effective management of cash by informal businesses that would enhance their growth. A positivistic research paradigm was adopted in this study. A sample of 383 informal businesses was drawn from the five divisions of Kampala district namely; Central, Kawempe, Makindye, Nakawa and Rubaga. To ensure validity and reliability, EFA and Cronbach’s alpha coefficient were computed. Six hypotheses were developed to test the relationships between cash management and growth of informal businesses. The empirical results revealed that there is a significant relationship between cash management and the external environment in which informal businesses operate, a significant relationship between the external environment and the growth of informal businesses and a significant relationship between cash management and growth of informal businesses where the external environment will have a moderating influence on the relationship. The empirical results did not establish a significant relationship between cash management and the internal environment in which informal businesses operate, the internal environment and growth of informal businesses and cash management and growth of informal businesses where internal environment will have a moderating influence on the relationship. The results of this study show that the growth of informal businesses is largely hampered by poor cash management practices and challenges such as the lack of cash planning, lack of cash forecasting and budgeting, lack of financial controls and reporting, the tendency to invest largely in short-term assets which limits their profitability, the employment of less competent and skilled staff and lack of formal accounting information systems. The magnitude of the impact of these is accelerated by the external environment such as competition and the legal and regulatory environment which put pressure on the little cash resources owned by these businesses. Based on the study results, several strategies based on individual cash components of cash planning, cash forecasting and budgeting, financial controls and reporting, short-term investment of cash surplus, competence and skills of staff and accounting information systems were recommended for implementation. It was further recommended that these strategies should be implemented while giving due attention to the external environment if informal businesses are to effectively manage cash and enhance their growth.
- Full Text:
- Date Issued: 2016
- Authors: Nuwagaba, Geoffrey , Struwig, Miemie
- Date: 2016
- Subjects: Cash management -- Uganda , Informal sector (Economics) -- Uganda , Small business -- Uganda
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/12319 , vital:27054
- Description: This study investigates the relationships between cash management and growth of informal businesses in Uganda. Whereas anecdotal evidence has for some time revealed that informal businesses in Uganda are faced with the challenge of cash management, no specific studies have been conducted to investigate how this relates to the growth of businesses where evidence has also indicated that most of these businesses do not exist for very long. In particular, the study assesses and explores the growth levels of informal businesses in terms of sales volume, growth in employment and length of existence. The study investigates the various ways in which informal businesses manage their cash and investigates the various internal and external factors that moderate cash management and the growth of the informal businesses. Furthermore, the study proposes a possible framework to manage cash in informal businesses and makes recommendations to informal business owners and managers on how to effectively manage cash in order to stimulate business growth. In order to investigate the relationships between the variables, an empirical investigation was undertaken. Based on the literature review, the primary objective of the study was formulated to investigate the relationships between cash management and growth of informal businesses amidst the external and internal environment in Uganda in order to suggest a framework for effective management of cash by informal businesses that would enhance their growth. A positivistic research paradigm was adopted in this study. A sample of 383 informal businesses was drawn from the five divisions of Kampala district namely; Central, Kawempe, Makindye, Nakawa and Rubaga. To ensure validity and reliability, EFA and Cronbach’s alpha coefficient were computed. Six hypotheses were developed to test the relationships between cash management and growth of informal businesses. The empirical results revealed that there is a significant relationship between cash management and the external environment in which informal businesses operate, a significant relationship between the external environment and the growth of informal businesses and a significant relationship between cash management and growth of informal businesses where the external environment will have a moderating influence on the relationship. The empirical results did not establish a significant relationship between cash management and the internal environment in which informal businesses operate, the internal environment and growth of informal businesses and cash management and growth of informal businesses where internal environment will have a moderating influence on the relationship. The results of this study show that the growth of informal businesses is largely hampered by poor cash management practices and challenges such as the lack of cash planning, lack of cash forecasting and budgeting, lack of financial controls and reporting, the tendency to invest largely in short-term assets which limits their profitability, the employment of less competent and skilled staff and lack of formal accounting information systems. The magnitude of the impact of these is accelerated by the external environment such as competition and the legal and regulatory environment which put pressure on the little cash resources owned by these businesses. Based on the study results, several strategies based on individual cash components of cash planning, cash forecasting and budgeting, financial controls and reporting, short-term investment of cash surplus, competence and skills of staff and accounting information systems were recommended for implementation. It was further recommended that these strategies should be implemented while giving due attention to the external environment if informal businesses are to effectively manage cash and enhance their growth.
- Full Text:
- Date Issued: 2016
Releasing the pause button on Hugh Tracey’s field recordings of 1959: repatriation and revitalisation of a selection of the Bangwaketse music held at the International Library of African Music (ILAM)
- Authors: Mojaki, Pinkie Gomolemo
- Date: 2016
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: http://hdl.handle.net/10962/4267 , vital:20640
- Description: This thesis examines an attempt at repatriation and the revitalisation of archival holdings from the International Library of African Music (ILAM) to the Bangwaketse community of Botswana. I assess how the attempt may shape future possibilities for the repatriation of more recordings from ILAM to other areas in Botswana. Drawing on the narrative compiled from the various sessions of memory retrieval and recollections of the past, I establish how the Bangwaketse claim ownership of their musical heritage. Memory and nostalgic reactions to musical sound contribute to a construction of communal truths as held by the people who claim their heritage to the music from ILAM. Memory retrieval and recollection are explored in this research as a process that allows the members of the community to reconnect with their past, interpret their memories, modify and create the ideal image of their community and retell their stories. Through the interactions and exploration of memory, I explore how the Bangwaketse are motivated to engage with the recordings from ILAM. In addition, based on the observation of the recent music performances of the Bangwaketse, I examine how the approaches they used, to sustain the traditional music that they continue to play, may inform the process of returning and revitalising archival holdings from ILAM. I argue that, for the purpose of revitalising the old archival recordings, the performers require incentives that are related to social developments and their contexts. Furthermore, the revitalisation effort is a joint effort between the performers, culture bearers as well as the audiences. In addition, I argue that in order to reinsert the archival recordings in the community, the recordings should be worked through the education sector and be taught to all generations, especially the children who hold the possibility of continued music revitalisation. The research evaluates how the traditional music of the Bangwaketse is conceptualized in recent years by the different research participants. The project further describes the innate need for a continued music culture by the Bangwaketse. Some sections of the data explain how music ‘escaped’ the social practices and structures of the past. After tracing how the traditional music ceased, I study how the Bangwaketse communally construct different strategies to re-insert the music into their livelihoods in order to realise the revitalisation of ILAM recordings in their original performance contexts.
- Full Text:
- Date Issued: 2016
- Authors: Mojaki, Pinkie Gomolemo
- Date: 2016
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: http://hdl.handle.net/10962/4267 , vital:20640
- Description: This thesis examines an attempt at repatriation and the revitalisation of archival holdings from the International Library of African Music (ILAM) to the Bangwaketse community of Botswana. I assess how the attempt may shape future possibilities for the repatriation of more recordings from ILAM to other areas in Botswana. Drawing on the narrative compiled from the various sessions of memory retrieval and recollections of the past, I establish how the Bangwaketse claim ownership of their musical heritage. Memory and nostalgic reactions to musical sound contribute to a construction of communal truths as held by the people who claim their heritage to the music from ILAM. Memory retrieval and recollection are explored in this research as a process that allows the members of the community to reconnect with their past, interpret their memories, modify and create the ideal image of their community and retell their stories. Through the interactions and exploration of memory, I explore how the Bangwaketse are motivated to engage with the recordings from ILAM. In addition, based on the observation of the recent music performances of the Bangwaketse, I examine how the approaches they used, to sustain the traditional music that they continue to play, may inform the process of returning and revitalising archival holdings from ILAM. I argue that, for the purpose of revitalising the old archival recordings, the performers require incentives that are related to social developments and their contexts. Furthermore, the revitalisation effort is a joint effort between the performers, culture bearers as well as the audiences. In addition, I argue that in order to reinsert the archival recordings in the community, the recordings should be worked through the education sector and be taught to all generations, especially the children who hold the possibility of continued music revitalisation. The research evaluates how the traditional music of the Bangwaketse is conceptualized in recent years by the different research participants. The project further describes the innate need for a continued music culture by the Bangwaketse. Some sections of the data explain how music ‘escaped’ the social practices and structures of the past. After tracing how the traditional music ceased, I study how the Bangwaketse communally construct different strategies to re-insert the music into their livelihoods in order to realise the revitalisation of ILAM recordings in their original performance contexts.
- Full Text:
- Date Issued: 2016
Relevance of the family assessment for least developed countries (FALDC) assessment tool rendering child protection services in the Eastern Cape, South Africa
- Authors: Mgidi, Siphelele
- Date: 2016
- Subjects: Child abuse -- South Africa -- Prevention Family social work -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/6335 , vital:29578
- Description: Assessment tools have been used for various purposes, including for protecting children from maltreatment. The main aim of this study was to to evaluate and determine the relevance of the Family Assessment for Leased Developed Countries (FALDC) assessment tool for child protection services in the Eastern Cape Province. The research was conducted using the social developmental welfare approach (Patel, 2005) and ecological systems theory (Healy, 2005). The study made use of the qualitative research method; in doing so the study made use of the case study design. In using the qualitative research method, focus group discussions were conducted with 29 social workers involved in child protection services. The findings of the study indicated that the FALDC assessment tool provides information useful for child protection services even though it contains sections that are regarded as less relevant to child protection. The study also founded that the FALDC assessment tool is relevant to child protection in the South African context, yet it needs to be aligned so that it provides much of the information desired by those involved in child protection. A conclusion drawn from this study is that the FALDC assessment tool appears to be relevant for child protection services. The FALDC assessment tool needs to be adjusted taking into consideration other aspects important to child protection in the South African child protection context.
- Full Text:
- Date Issued: 2016
- Authors: Mgidi, Siphelele
- Date: 2016
- Subjects: Child abuse -- South Africa -- Prevention Family social work -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/6335 , vital:29578
- Description: Assessment tools have been used for various purposes, including for protecting children from maltreatment. The main aim of this study was to to evaluate and determine the relevance of the Family Assessment for Leased Developed Countries (FALDC) assessment tool for child protection services in the Eastern Cape Province. The research was conducted using the social developmental welfare approach (Patel, 2005) and ecological systems theory (Healy, 2005). The study made use of the qualitative research method; in doing so the study made use of the case study design. In using the qualitative research method, focus group discussions were conducted with 29 social workers involved in child protection services. The findings of the study indicated that the FALDC assessment tool provides information useful for child protection services even though it contains sections that are regarded as less relevant to child protection. The study also founded that the FALDC assessment tool is relevant to child protection in the South African context, yet it needs to be aligned so that it provides much of the information desired by those involved in child protection. A conclusion drawn from this study is that the FALDC assessment tool appears to be relevant for child protection services. The FALDC assessment tool needs to be adjusted taking into consideration other aspects important to child protection in the South African child protection context.
- Full Text:
- Date Issued: 2016