Citizen Monitoring of The National Water Resource Strategy 2 (NWRS2)
- Wilson, Jessica, Munnik, Victor, Burt, Jane C, Pereira, Taryn, Ngcozela, Thabang, Mokoena, Samson, Lusithi, Thabo, Lotz-Sisitka, Heila, Ndhlovu, December, Ngcanga, Thandiwe, Tshabalala, Mduduzi, James, Manelisi, Mashile, Alexander, Mdululi, Patricia
- Authors: Wilson, Jessica , Munnik, Victor , Burt, Jane C , Pereira, Taryn , Ngcozela, Thabang , Mokoena, Samson , Lusithi, Thabo , Lotz-Sisitka, Heila , Ndhlovu, December , Ngcanga, Thandiwe , Tshabalala, Mduduzi , James, Manelisi , Mashile, Alexander , Mdululi, Patricia
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/436812 , vital:73307 , ISBN 978-1-4312-0922-4 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/2313%20_final.pdf
- Description: In 2014, the South African Water Caucus (SAWC), a network of non-governmental organisations (NGOs) and community-based organisations (CBOs) who are active in the water sec-tor, embarked on a social learning and action research journey supported by the South African Water Research Commission (WRC) to deepen its monitoring of South Africa’s Second Na-tional Water Resources Strategy (NWRS2). They focused on three issues in three cases study areas.
- Full Text:
- Date Issued: 2016
- Authors: Wilson, Jessica , Munnik, Victor , Burt, Jane C , Pereira, Taryn , Ngcozela, Thabang , Mokoena, Samson , Lusithi, Thabo , Lotz-Sisitka, Heila , Ndhlovu, December , Ngcanga, Thandiwe , Tshabalala, Mduduzi , James, Manelisi , Mashile, Alexander , Mdululi, Patricia
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/436812 , vital:73307 , ISBN 978-1-4312-0922-4 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/2313%20_final.pdf
- Description: In 2014, the South African Water Caucus (SAWC), a network of non-governmental organisations (NGOs) and community-based organisations (CBOs) who are active in the water sec-tor, embarked on a social learning and action research journey supported by the South African Water Research Commission (WRC) to deepen its monitoring of South Africa’s Second Na-tional Water Resources Strategy (NWRS2). They focused on three issues in three cases study areas.
- Full Text:
- Date Issued: 2016
Citizen Monitoring of the NWRS2. WRC report 2313
- Wilson, Jessica, Munnik, Victor, Burt, Jane C, Pereira, Taryn, Ngcozela, Thabang, Lusithi, Thabo, Lotz-Sisitka, Heila
- Authors: Wilson, Jessica , Munnik, Victor , Burt, Jane C , Pereira, Taryn , Ngcozela, Thabang , Lusithi, Thabo , Lotz-Sisitka, Heila
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/432979 , vital:72920 , xlink:href="https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/2313%20_final.pdf"
- Description: In 2014, the South African Water Caucus (SAWC), a network of non-governmental organisations (NGOs) and community-based organisations (CBOs) who are active in the water sector, embarked on a social learning and action research journey supported by the South African Water Research Commission (WRC) to deepen its monitoring of South Africa’s Second National Water Resources Strategy (NWRS2). They focused on three issues in three cases study areas.
- Full Text:
- Date Issued: 2016
- Authors: Wilson, Jessica , Munnik, Victor , Burt, Jane C , Pereira, Taryn , Ngcozela, Thabang , Lusithi, Thabo , Lotz-Sisitka, Heila
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/432979 , vital:72920 , xlink:href="https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/2313%20_final.pdf"
- Description: In 2014, the South African Water Caucus (SAWC), a network of non-governmental organisations (NGOs) and community-based organisations (CBOs) who are active in the water sector, embarked on a social learning and action research journey supported by the South African Water Research Commission (WRC) to deepen its monitoring of South Africa’s Second National Water Resources Strategy (NWRS2). They focused on three issues in three cases study areas.
- Full Text:
- Date Issued: 2016
Class actions as a means of enhancing access to justice in South Africa
- Authors: Marumo, Tladi
- Date: 2016
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:3723 , http://hdl.handle.net/10962/d1021267
- Description: 21 years into democracy South Africa is marked by starkly contrasting experiences in the lives of its citizens. For some few, theirs remains a society defined by opulence and social, economic and political entitlements that accompany it. For a few beneficiaries, democracy has brought with it remarkable changes which have translated through their lives in economic, political and socialempowerment and wellbeing. Accompanying these changes has been the establishment and importantly, the enhancement of access to modern political and legal democratic and participatoryinstitutions of governance for these citizens. And yet, for the remaining majority of South Africans, their experience is marked by social and economic deprivation, poverty and vulnerability. These latter experiences are attributable to the historical legacy of colonialism and apartheid which continues to present itself in the form of persistent poverty and inequality in a ‘new South Africa.’ It is within this new South Africa, that this deprivation is further exacerbated by an increasingly unaccountable and unresponsive government ‘at war with its citizens.’ Service delivery protests, then have become a (if not the) way in which the poor and vulnerable get together as a collective, to try and take on the government in way they know how within their means, on deprivations of housing, electricity, water, sanitation, social assistance, healthcare and education. Finding an alternative legal means, whereby poor and vulnerable people themselves, may address these challenges is in the purpose of this thesis. However, the emphasis is not on addressing the plight of vulnerable groups through dependency from outside help, but on finding a means in which the agency (albeit constrained) of people to address their own concerns is recognised. The work investigates how law can enhance the collective agency of poor people to change their socioeconomic circumstances. In particular I investigate how the class action, a legal device which can enable people to come together collectively as a class in litigation for the enforcement of their rights of access to housing, electricity, water, sanitation, social assistance, healthcare and education, can achieve this. I provide recommendations on legal reform on how best access to courts can be made easier through the removal of barriers for impoverished communities to collectively enforce their socio-economic rights. I position the Regulation of Gatherings Act, a legislation which is aimed at affording legal protection to protest action, as a as accessible gateway into towards class litigation.
- Full Text:
- Date Issued: 2016
- Authors: Marumo, Tladi
- Date: 2016
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:3723 , http://hdl.handle.net/10962/d1021267
- Description: 21 years into democracy South Africa is marked by starkly contrasting experiences in the lives of its citizens. For some few, theirs remains a society defined by opulence and social, economic and political entitlements that accompany it. For a few beneficiaries, democracy has brought with it remarkable changes which have translated through their lives in economic, political and socialempowerment and wellbeing. Accompanying these changes has been the establishment and importantly, the enhancement of access to modern political and legal democratic and participatoryinstitutions of governance for these citizens. And yet, for the remaining majority of South Africans, their experience is marked by social and economic deprivation, poverty and vulnerability. These latter experiences are attributable to the historical legacy of colonialism and apartheid which continues to present itself in the form of persistent poverty and inequality in a ‘new South Africa.’ It is within this new South Africa, that this deprivation is further exacerbated by an increasingly unaccountable and unresponsive government ‘at war with its citizens.’ Service delivery protests, then have become a (if not the) way in which the poor and vulnerable get together as a collective, to try and take on the government in way they know how within their means, on deprivations of housing, electricity, water, sanitation, social assistance, healthcare and education. Finding an alternative legal means, whereby poor and vulnerable people themselves, may address these challenges is in the purpose of this thesis. However, the emphasis is not on addressing the plight of vulnerable groups through dependency from outside help, but on finding a means in which the agency (albeit constrained) of people to address their own concerns is recognised. The work investigates how law can enhance the collective agency of poor people to change their socioeconomic circumstances. In particular I investigate how the class action, a legal device which can enable people to come together collectively as a class in litigation for the enforcement of their rights of access to housing, electricity, water, sanitation, social assistance, healthcare and education, can achieve this. I provide recommendations on legal reform on how best access to courts can be made easier through the removal of barriers for impoverished communities to collectively enforce their socio-economic rights. I position the Regulation of Gatherings Act, a legislation which is aimed at affording legal protection to protest action, as a as accessible gateway into towards class litigation.
- Full Text:
- Date Issued: 2016
Classical and quantum picture of the interior of two-dimensional black holes
- Authors: Shawa, Mark
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/3629 , vital:20531
- Description: A quantum-mechanical description of black holes would represent the final step in our understanding of the nature of space-time. However, any progress towards that end is usually foiled by persistent space-time singularities that exist at the center of black holes. From the four-dimensional point of view, black holes seem to resist quantization. Under highly symmetric conditions, all higher-dimensional black holes are two-dimensional. Unlike their higher-dimensional counterparts, two dimensional black holes may not resist quantization. A non-trivial description of gravity in two dimensions is not possible using Einstein’s theory of gravity alone. However, we may still arrive at a consistent description of gravity by introducing a scalar field known as the dilaton. In this thesis, we study both the classical and quantum aspects of the interior of two-dimensional black holes using a generalized dilaton-gravity theory. Classically, we will find that the interior of most two-dimensional black holes is not much different from that of four-dimensional black holes. But by introducing quantized matter into the theory, the fluctuations in space-time will give a different picture of the structure of interior of black holes. Using a low-energy effective field theory, we will show that it is indeed possible to identify quantum modes in the interior of black holes and perform quantum-mechanical calculations near the singularity.
- Full Text:
- Date Issued: 2016
- Authors: Shawa, Mark
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/3629 , vital:20531
- Description: A quantum-mechanical description of black holes would represent the final step in our understanding of the nature of space-time. However, any progress towards that end is usually foiled by persistent space-time singularities that exist at the center of black holes. From the four-dimensional point of view, black holes seem to resist quantization. Under highly symmetric conditions, all higher-dimensional black holes are two-dimensional. Unlike their higher-dimensional counterparts, two dimensional black holes may not resist quantization. A non-trivial description of gravity in two dimensions is not possible using Einstein’s theory of gravity alone. However, we may still arrive at a consistent description of gravity by introducing a scalar field known as the dilaton. In this thesis, we study both the classical and quantum aspects of the interior of two-dimensional black holes using a generalized dilaton-gravity theory. Classically, we will find that the interior of most two-dimensional black holes is not much different from that of four-dimensional black holes. But by introducing quantized matter into the theory, the fluctuations in space-time will give a different picture of the structure of interior of black holes. Using a low-energy effective field theory, we will show that it is indeed possible to identify quantum modes in the interior of black holes and perform quantum-mechanical calculations near the singularity.
- Full Text:
- Date Issued: 2016
Clothing fashion design students' workplace learning experiences in a university of technology in Zimbabwe : towards an enhanced workplace learning role
- Authors: Tarirai, Dandira
- Date: 2016
- Subjects: Fashion design Fashion--Study and teaching Fashion design--Study and teaching
- Language: English
- Type: Thesis , Doctoral , Education
- Identifier: http://hdl.handle.net/10353/16080 , vital:40662
- Description: The focus of this study was to explore Clothing Fashion Design students’ workplace learning experiences at one university of technology in Zimbabwe. Underpinned by Kolb’s (1984) experiential learning theory, the study was located in the interpretivist research paradigm and followed a qualitative research approach, which utilised a descriptive case study design. The research sample was purposively drawn from third year Clothing Fashion Design students on workplace learning, university lecturers and workplace mentors. It included nine third year students, six workplace mentors and six University lecturers. Two major methods were employed to collect data namely; in-depth face–to-face individual interviews with students, university lecturers and workplace mentors and document analysis as a secondary method of data collection method. The data were analysed for content using thematic data analysis technique. Major findings of the study are that third year Clothing Fashion Design students at the University under study applied knowledge and skills learnt from University in Pattern Design, Garment Cutting and Making, Fashion Illustration, Fashion marketing and Retailing and Communication Skills. However, they did not design new patterns neither were they guided in Fashion Illustration since these were not done in industry as mentors lacked knowledge in these critical areas. In garment cutting and making they did not use specialised machinery due to the scarcity of such machinery and in other cases limited access. Knowledge and skills acquired from workplace learning included pattern design, garment cutting and making, fashion quality management and fashion marketing and retailing. Students did not gain skills in fashion designing and use of specialised machinery since most industries had no such machinery. Students also learnt to value time and put emphasis on production of quality products at the workplace. Dress was also valued but not by all the students since it was not uniformly considered in all industries. The factors that hindered workplace learning included strikes by mentors, shortage of material resources such as fabrics, under qualified mentors, sexual harassment and improper supervision, financial challenges and inadequacy of time to attend to university academic work. Factors that promoted workplace learning included assistance by mentors, availability of basic resources for use, good student-mentor relationships and self- motivation. Findings also reflected the guidance that was offered to students by lecturers and workplace mentors which included preparation of students for workplace learning, discipline, counselling and guidance in research projects and in practical work. Support that was offered to students by lecturers and workplace mentors included assessment, moral support, student welfare and, in some cases material support. There was very little of financial support. The study concludes that while students generally appeared to benefit from workplace learning, there were challenges that negatively affected workplace learning. The study recommends improved university/industry partnership to enhance workplace learning, among other recommendations. A model for enhancing students’ workplace learning is also proposed.
- Full Text:
- Date Issued: 2016
- Authors: Tarirai, Dandira
- Date: 2016
- Subjects: Fashion design Fashion--Study and teaching Fashion design--Study and teaching
- Language: English
- Type: Thesis , Doctoral , Education
- Identifier: http://hdl.handle.net/10353/16080 , vital:40662
- Description: The focus of this study was to explore Clothing Fashion Design students’ workplace learning experiences at one university of technology in Zimbabwe. Underpinned by Kolb’s (1984) experiential learning theory, the study was located in the interpretivist research paradigm and followed a qualitative research approach, which utilised a descriptive case study design. The research sample was purposively drawn from third year Clothing Fashion Design students on workplace learning, university lecturers and workplace mentors. It included nine third year students, six workplace mentors and six University lecturers. Two major methods were employed to collect data namely; in-depth face–to-face individual interviews with students, university lecturers and workplace mentors and document analysis as a secondary method of data collection method. The data were analysed for content using thematic data analysis technique. Major findings of the study are that third year Clothing Fashion Design students at the University under study applied knowledge and skills learnt from University in Pattern Design, Garment Cutting and Making, Fashion Illustration, Fashion marketing and Retailing and Communication Skills. However, they did not design new patterns neither were they guided in Fashion Illustration since these were not done in industry as mentors lacked knowledge in these critical areas. In garment cutting and making they did not use specialised machinery due to the scarcity of such machinery and in other cases limited access. Knowledge and skills acquired from workplace learning included pattern design, garment cutting and making, fashion quality management and fashion marketing and retailing. Students did not gain skills in fashion designing and use of specialised machinery since most industries had no such machinery. Students also learnt to value time and put emphasis on production of quality products at the workplace. Dress was also valued but not by all the students since it was not uniformly considered in all industries. The factors that hindered workplace learning included strikes by mentors, shortage of material resources such as fabrics, under qualified mentors, sexual harassment and improper supervision, financial challenges and inadequacy of time to attend to university academic work. Factors that promoted workplace learning included assistance by mentors, availability of basic resources for use, good student-mentor relationships and self- motivation. Findings also reflected the guidance that was offered to students by lecturers and workplace mentors which included preparation of students for workplace learning, discipline, counselling and guidance in research projects and in practical work. Support that was offered to students by lecturers and workplace mentors included assessment, moral support, student welfare and, in some cases material support. There was very little of financial support. The study concludes that while students generally appeared to benefit from workplace learning, there were challenges that negatively affected workplace learning. The study recommends improved university/industry partnership to enhance workplace learning, among other recommendations. A model for enhancing students’ workplace learning is also proposed.
- Full Text:
- Date Issued: 2016
Co-designing research on transgressive learning in times of climate change
- Lotz-Sisitka, Heila, Ali, Million B, Mphepho, Gibson, Chaves, Martha, Macintyre, Thomas, Pesanayi, Tichaona V, Wals, Arjen E, Mukute, Mutizwa, Kronlid, David O, Tran, Duc, Joon, Deepika, McGarry, Dylan K
- Authors: Lotz-Sisitka, Heila , Ali, Million B , Mphepho, Gibson , Chaves, Martha , Macintyre, Thomas , Pesanayi, Tichaona V , Wals, Arjen E , Mukute, Mutizwa , Kronlid, David O , Tran, Duc , Joon, Deepika , McGarry, Dylan K
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/182472 , vital:43833 , xlink:href="https://doi.org/10.1016/j.cosust.2016.04.004"
- Description: This paper reflects on the epistemological context for the co-design of a research programme on transformative, transgressive learning emerging at the nexus of climate change, water and food security, energy and social justice. It outlines a sequence of learning actions that we, as a group of collaborating partners in a Transformative Knowledge Network (TKN) undertook to co-design a research programme, firstly in situ in various case study contexts, and secondly together across case study contexts. Finally, it provides some reflections and learning points.
- Full Text:
- Date Issued: 2016
- Authors: Lotz-Sisitka, Heila , Ali, Million B , Mphepho, Gibson , Chaves, Martha , Macintyre, Thomas , Pesanayi, Tichaona V , Wals, Arjen E , Mukute, Mutizwa , Kronlid, David O , Tran, Duc , Joon, Deepika , McGarry, Dylan K
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/182472 , vital:43833 , xlink:href="https://doi.org/10.1016/j.cosust.2016.04.004"
- Description: This paper reflects on the epistemological context for the co-design of a research programme on transformative, transgressive learning emerging at the nexus of climate change, water and food security, energy and social justice. It outlines a sequence of learning actions that we, as a group of collaborating partners in a Transformative Knowledge Network (TKN) undertook to co-design a research programme, firstly in situ in various case study contexts, and secondly together across case study contexts. Finally, it provides some reflections and learning points.
- Full Text:
- Date Issued: 2016
Co-management, land rights, and conflicts around South Africa’s Silaka Nature Reserve
- Thondhlana, Gladman, Cundill, Georgina, Kepe, Thembele
- Authors: Thondhlana, Gladman , Cundill, Georgina , Kepe, Thembele
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67781 , vital:29144 , https://doi.org/10.1080/08941920.2015.1089609
- Description: Publisher version , Globally, co-management of protected areas (PAs) offers promise in efforts to achieve ecological integrity and livelihood needs. Most co-management agreements are premised on joint decision making in defining equitable sharing of benefits from and the management responsibilities for natural resource management. However, co-managed PAs are often conflict ridden. The forceful closure of Silaka Nature Reserve in South Africa in 2013 by a local community epitomizes the conflicts that can emerge in co-management arrangements. Using Silaka Reserve as a case study, we ask questions related to the meaning of land to local people, with an interrogative focus beyond “material benefits” in co-management discourse. The results of this study show that apart from nonaccrual of material benefits, conflicts arise from nonrecognition of nonmaterial aspects such as cultural values of and historical attachment to land and limited involvement of land claimants in decision making. The implications for co-management as a desired outcome on settled land claims are discussed.
- Full Text: false
- Date Issued: 2016
- Authors: Thondhlana, Gladman , Cundill, Georgina , Kepe, Thembele
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/67781 , vital:29144 , https://doi.org/10.1080/08941920.2015.1089609
- Description: Publisher version , Globally, co-management of protected areas (PAs) offers promise in efforts to achieve ecological integrity and livelihood needs. Most co-management agreements are premised on joint decision making in defining equitable sharing of benefits from and the management responsibilities for natural resource management. However, co-managed PAs are often conflict ridden. The forceful closure of Silaka Nature Reserve in South Africa in 2013 by a local community epitomizes the conflicts that can emerge in co-management arrangements. Using Silaka Reserve as a case study, we ask questions related to the meaning of land to local people, with an interrogative focus beyond “material benefits” in co-management discourse. The results of this study show that apart from nonaccrual of material benefits, conflicts arise from nonrecognition of nonmaterial aspects such as cultural values of and historical attachment to land and limited involvement of land claimants in decision making. The implications for co-management as a desired outcome on settled land claims are discussed.
- Full Text: false
- Date Issued: 2016
Co-operatives support programme of the Cacadu District Municipality
- Authors: Kate, Pumelelo Maxwell
- Date: 2016
- Subjects: Cooperative societies -- South Africa -- Eastern Cape , Social status -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/5667 , vital:20961
- Description: Despite the efforts by government to support and direct resources and institutions to address high levels of poverty through co-operative programmes, the Eastern Cape Province remains one of the poorest provinces in the country. Even in the relatively more prosperous Cacadu District in the western portion of the Province, the socio- economic landscape is punctuated by pockets of acute poverty. In order to support government policies to promote co-operatives as a means to address past exclusions from the agricultural sector, as well as to promote socio-economic development in one of its poorest local municipalities, the Cacadu District Municipality has been implementing a support and mentoring programme to agricultural co-operatives in the Ikwezi Local Municipality. Furthermore, Ikwezi was selected because it has the highest concentration of co-operatives in the region supported by the District Municipality and by other Sector Departments from the National and Provincial Governments. The relationships between the support that is provided by Cacadu District Municipality to co-operatives and the extent to which supported co-operatives harness these advantages to grow and sustain their enterprises, forms the cornerstone of this research. As such, the hypothesis that will be tested reads as follows: The government support provided by Cacadu District Municipality to co-operatives in its area of jurisdiction has resulted in the growth and sustainability of the co-operative enterprises. The literature review considers the significant role that co-operatives play in local economic development. It provides a historical overview of co-operatives, as well as the policy framework on co-operatives in South Africa. The role of Cacadu District Municipality with regards to co-operatives and local economic development is reviewed, as well as its co- operative support and mentorship programme. An overview of the socio-economic profile of the Ikwezi Local Municipality and the agricultural co-operatives in the area concludes the literature review. The research approach is based on a mixed method between the qualitative and quantitative research families, with a bias towards the qualitative approach. The study placed more emphasis on the data gathered from individual co-operative businesses and the personal experiences of individuals involved in the co-operative sector. This approach requires qualitative techniques such as interviews and observations. The internet was used as a source for the gathering of relevant data related to the stated research objectives. Other relevant information is gathered through documents reviewed and case studies. The study used questionnaires to interview a sample of agricultural co-operatives in Ikwezi. The collected data was analysed and presented according to a set of themes that formed the basis for the analysis. The analysis provided insights into the background and history of the selected co-operatives, the challenges that they face to survive and the support that they require from government and other potential support structures. The analysis furthermore focussed on the perception of the members of the co-operatives of the impact – whether positive or negative – of the Cacadu co-operatives support and, in particular, it’s mentorship programme. The findings revealed that there was overwhelming support from the co-operative members for the intervention and mentorship provided by the Cacadu District Municipality. It became clear that accessing agricultural land and providing funding and inputs to emerging farmers and co-operatives is not enough. There needs to be a building and nurturing of an entrepreneurial spirit and business mentality accompanied by appropriate training and capacity building interventions for the co- operatives to become successful enterprises. This study reveals that this is possible given all the resources at the disposal of the state. In conclusion, the hypothesis that the support provided by Cacadu District Municipality to co-operatives in its area of jurisdiction has resulted in the growth and sustainability of the co-operative enterprises, was found to be valid.
- Full Text:
- Date Issued: 2016
- Authors: Kate, Pumelelo Maxwell
- Date: 2016
- Subjects: Cooperative societies -- South Africa -- Eastern Cape , Social status -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/5667 , vital:20961
- Description: Despite the efforts by government to support and direct resources and institutions to address high levels of poverty through co-operative programmes, the Eastern Cape Province remains one of the poorest provinces in the country. Even in the relatively more prosperous Cacadu District in the western portion of the Province, the socio- economic landscape is punctuated by pockets of acute poverty. In order to support government policies to promote co-operatives as a means to address past exclusions from the agricultural sector, as well as to promote socio-economic development in one of its poorest local municipalities, the Cacadu District Municipality has been implementing a support and mentoring programme to agricultural co-operatives in the Ikwezi Local Municipality. Furthermore, Ikwezi was selected because it has the highest concentration of co-operatives in the region supported by the District Municipality and by other Sector Departments from the National and Provincial Governments. The relationships between the support that is provided by Cacadu District Municipality to co-operatives and the extent to which supported co-operatives harness these advantages to grow and sustain their enterprises, forms the cornerstone of this research. As such, the hypothesis that will be tested reads as follows: The government support provided by Cacadu District Municipality to co-operatives in its area of jurisdiction has resulted in the growth and sustainability of the co-operative enterprises. The literature review considers the significant role that co-operatives play in local economic development. It provides a historical overview of co-operatives, as well as the policy framework on co-operatives in South Africa. The role of Cacadu District Municipality with regards to co-operatives and local economic development is reviewed, as well as its co- operative support and mentorship programme. An overview of the socio-economic profile of the Ikwezi Local Municipality and the agricultural co-operatives in the area concludes the literature review. The research approach is based on a mixed method between the qualitative and quantitative research families, with a bias towards the qualitative approach. The study placed more emphasis on the data gathered from individual co-operative businesses and the personal experiences of individuals involved in the co-operative sector. This approach requires qualitative techniques such as interviews and observations. The internet was used as a source for the gathering of relevant data related to the stated research objectives. Other relevant information is gathered through documents reviewed and case studies. The study used questionnaires to interview a sample of agricultural co-operatives in Ikwezi. The collected data was analysed and presented according to a set of themes that formed the basis for the analysis. The analysis provided insights into the background and history of the selected co-operatives, the challenges that they face to survive and the support that they require from government and other potential support structures. The analysis furthermore focussed on the perception of the members of the co-operatives of the impact – whether positive or negative – of the Cacadu co-operatives support and, in particular, it’s mentorship programme. The findings revealed that there was overwhelming support from the co-operative members for the intervention and mentorship provided by the Cacadu District Municipality. It became clear that accessing agricultural land and providing funding and inputs to emerging farmers and co-operatives is not enough. There needs to be a building and nurturing of an entrepreneurial spirit and business mentality accompanied by appropriate training and capacity building interventions for the co- operatives to become successful enterprises. This study reveals that this is possible given all the resources at the disposal of the state. In conclusion, the hypothesis that the support provided by Cacadu District Municipality to co-operatives in its area of jurisdiction has resulted in the growth and sustainability of the co-operative enterprises, was found to be valid.
- Full Text:
- Date Issued: 2016
Codeswitching online: a case study of a bilingual online maths programme for grade 7 learners in Diepsloot, Johannesburg
- Authors: von Witt, Nathalia
- Date: 2016
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/3983 , vital:20577
- Description: There is an education crisis in South Africa. Mathematics and literacy are at the forefront of the problem, as particularly evidenced by Annual National Assessment results (Department of Basic Education, 2014; Spaull, 2014). This research is motivated by the unequal access to quality learning which stems from learners learning through a poorly-understood second language with little to no cognitive academic language proficiency. The vast majority of South African learners learn through their second language, English, from Grade 4 onwards. English is the language of South Africa’s political economy and is a global lingua franca; however, the understanding of concepts and content learnt at school is vital if one is to have any hope of putting one’s English to good use. This research aimed to find a way to equip learners both with English proficiency and mathematical understanding simultaneously. This was done by implementing and evaluating an experimental bilingual course in an existing mathematics programme in the township of Diepsloot in Johannesburg, South Africa. This research used design-based research methodology, using both qualitative and quantitative research methods. This methodology was chosen as it allows theory and practice to intersect in a real-life setting, and for the successes and shortcomings of this intersection to be evaluated. This study encompasses both the evaluation and creation of the bilingual online mathematics course. The course is made bilingual through the creation of bilingual videos with the use of translanguaging and the creation of a bilingual glossary of terms. The videos were created using a translanguaging ‘model’ informed by theories of basic interpersonal communication skills and cognitive academic language proficiency (Cummins, 1981), common underlying proficiency (Cummins, 1991), codeswitching (Setati, 1998; Ncoko et al., 2000) and translanguaging (Makalela 2015; Creese and Blackledge, 2010a). The aim of this research was to create a successful translanguaging model which facilitates learners’ ability to conceptualise in their first language and then discuss and understand the concept in their second language.
- Full Text:
- Date Issued: 2016
- Authors: von Witt, Nathalia
- Date: 2016
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/3983 , vital:20577
- Description: There is an education crisis in South Africa. Mathematics and literacy are at the forefront of the problem, as particularly evidenced by Annual National Assessment results (Department of Basic Education, 2014; Spaull, 2014). This research is motivated by the unequal access to quality learning which stems from learners learning through a poorly-understood second language with little to no cognitive academic language proficiency. The vast majority of South African learners learn through their second language, English, from Grade 4 onwards. English is the language of South Africa’s political economy and is a global lingua franca; however, the understanding of concepts and content learnt at school is vital if one is to have any hope of putting one’s English to good use. This research aimed to find a way to equip learners both with English proficiency and mathematical understanding simultaneously. This was done by implementing and evaluating an experimental bilingual course in an existing mathematics programme in the township of Diepsloot in Johannesburg, South Africa. This research used design-based research methodology, using both qualitative and quantitative research methods. This methodology was chosen as it allows theory and practice to intersect in a real-life setting, and for the successes and shortcomings of this intersection to be evaluated. This study encompasses both the evaluation and creation of the bilingual online mathematics course. The course is made bilingual through the creation of bilingual videos with the use of translanguaging and the creation of a bilingual glossary of terms. The videos were created using a translanguaging ‘model’ informed by theories of basic interpersonal communication skills and cognitive academic language proficiency (Cummins, 1981), common underlying proficiency (Cummins, 1991), codeswitching (Setati, 1998; Ncoko et al., 2000) and translanguaging (Makalela 2015; Creese and Blackledge, 2010a). The aim of this research was to create a successful translanguaging model which facilitates learners’ ability to conceptualise in their first language and then discuss and understand the concept in their second language.
- Full Text:
- Date Issued: 2016
Collaborative learning of water conservation practices: cultivation and expansion of a learning network around rainwater harvesting demonstration sites in the Eastern Cape, South Africa
- Pesanayi, Tichaona V, Weaver, Kim N
- Authors: Pesanayi, Tichaona V , Weaver, Kim N
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/392086 , vital:68720 , xlink:href="https://www.ajol.info/index.php/sajae/article/view/138570"
- Description: Learning together in mediated voluntary networks can mobilise skills and innovations that help to facilitate learning and uptake of rainwater harvesting and conservation practices. It boosts extension capacity while at the same time growing farmer capabilities, tapping on the distributed cognition. These practices help to heal wicked problems of drought and global change challenges affecting marginalised farmers in South Africa. South Africa has water, nutrition and food security challenges, especially the Eastern Cape Province where there is a relatively high level of poverty. These challenges place heavy pressure on the agricultural sector as it is the main user of the allocated water in the country. In this paper, the learning of and agency for rainwater harvesting and conservation practices are explored as responses to these challenges. Despite existing cultural histories of such practices among the amaXhosa people, information on these practices is not readily available to small-scale rural farmers who thus struggle for the want of knowing. This research forms part of a Water Research Commission project, Amanzi for Food, whose intention is to mediate collaborative and co-engaged learning among networked farmers, extension workers, researchers and agricultural educators through course-mediated use of Water Research Commission rainwater harvesting and conservation materials.
- Full Text:
- Date Issued: 2016
- Authors: Pesanayi, Tichaona V , Weaver, Kim N
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/392086 , vital:68720 , xlink:href="https://www.ajol.info/index.php/sajae/article/view/138570"
- Description: Learning together in mediated voluntary networks can mobilise skills and innovations that help to facilitate learning and uptake of rainwater harvesting and conservation practices. It boosts extension capacity while at the same time growing farmer capabilities, tapping on the distributed cognition. These practices help to heal wicked problems of drought and global change challenges affecting marginalised farmers in South Africa. South Africa has water, nutrition and food security challenges, especially the Eastern Cape Province where there is a relatively high level of poverty. These challenges place heavy pressure on the agricultural sector as it is the main user of the allocated water in the country. In this paper, the learning of and agency for rainwater harvesting and conservation practices are explored as responses to these challenges. Despite existing cultural histories of such practices among the amaXhosa people, information on these practices is not readily available to small-scale rural farmers who thus struggle for the want of knowing. This research forms part of a Water Research Commission project, Amanzi for Food, whose intention is to mediate collaborative and co-engaged learning among networked farmers, extension workers, researchers and agricultural educators through course-mediated use of Water Research Commission rainwater harvesting and conservation materials.
- Full Text:
- Date Issued: 2016
Community care worker perceptions of their roles in tuberculosis care and their information needs:
- Okeyo, Ida L A, Dowse, Roslind
- Authors: Okeyo, Ida L A , Dowse, Roslind
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/156596 , vital:40029 , DOI: 10.4102/hsag.v21i0.962
- Description: Community care workers (CCWs) inhabit a central role in the management of tuberculosis (TB) patients in South Africa. CCWs attend training courses, but training is not standardised at either the national or provincial level. To explore perceptions of CCWs of their role in TB care and TB information needs.
- Full Text:
- Date Issued: 2016
- Authors: Okeyo, Ida L A , Dowse, Roslind
- Date: 2016
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/156596 , vital:40029 , DOI: 10.4102/hsag.v21i0.962
- Description: Community care workers (CCWs) inhabit a central role in the management of tuberculosis (TB) patients in South Africa. CCWs attend training courses, but training is not standardised at either the national or provincial level. To explore perceptions of CCWs of their role in TB care and TB information needs.
- Full Text:
- Date Issued: 2016
Community care workers in TB care: identifying and meeting their information needs
- Authors: Okeyo, Ida L A
- Date: 2016
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: http://hdl.handle.net/10962/4211 , vital:20633
- Description: According to the 2015 World Health Organisation global tuberculosis report, South Africa had 155,473 new TB cases in the last year, 61% of whom were HIV-positive. The tuberculosis (TB) epidemic in South Africa has resulted in the increasing use of community care workers (CCWs) for the management and supervision of TB patients on treatment. CCWs are increasingly being deployed to address the shortages of healthcare workers. CCWs supervising TB patients often act as information providers, advising and counselling patients on general care and medication use. Their effectiveness depends on appropriate knowledge, adequate training and access to good quality information about TB and TB medicines. The hypothesis for this study was that user-friendly, simple, illustrated information can enhance TB knowledge of CCWs, as well as serve as a practice tool in facilitating their counselling and education of patients. A conceptual framework was used to guide the development of an intervention to test this hypothesis through the following objectives: exploring the roles and TB information needs of CCWs working with TB patients; evaluating baseline TB knowledge and health literacy levels of CCWs; developing simple, illustrated information materials to address CCW TB information needs; and assessing the influence of the information materials on TB knowledge and practice of CCWs. Six CCWs from Grahamstown Hospice and 25 CCWs from six primary healthcare clinics in Grahamstown participated in the study, which was conducted in three main phases. Phase 1 began with focus group discussions and individual semi-structured interviews with 14 CCWs to explore their perceptions regarding their roles in TB care and their information needs. This was followed by individual interviews with all 31 CCWs using a structured questionnaire to collect quantitative data on health literacy and establish baseline TB knowledge. For Phase 2, the design of an A5 booklet was informed by the findings from Phase 1 and contained information about TB and TB medication. Pictograms were designed using a rigorous, iterative design process and were included in the booklet which was translated into isiXhosa and Afrikaans. The booklets were individually distributed to CCWs during an information session in which the topics in the booklet were discussed. Three months after completion of Phase 2, individual follow-up interviews were conducted with all CCWs to measure post-intervention TB knowledge. Focus group discussions or semi-structured interviews were conducted with 19 of the CCWs to explore the role and impact of the information materials on everyday CCW practice. Qualitative data were transcribed and analysed thematically by developing codes and identifying themes. Quantitative results were analysed using the t-test, Pearson Chi-square and a Z-test of proportions at a 0.05 level of significance. The conceptual framework provided a useful lens through which to view, and reflect on, the interaction between the elements of the healthcare system in relation to the results obtained. CCWs associated their roles in TB control with helping patients and having an impact in patients’ lives which they perceived as being meaningful. The good relationships with patients noted by study CCWs, as well as the appreciation they received from patients, contributed to their confidence and belief that they were well positioned and able to positively influence health outcomes. This study found that CCWs in the healthcare system were disadvantaged by the lack of support and supervision, deficiencies in training and lack of information materials, all of which reflect a negative interaction between CCWs with the healthcare system. Use of the booklet resulted in an improvement in CCW knowledge about the disease, TB medication, MDR and XDR-TB and HIV/AIDS and TB co-infection. The mean knowledge score significantly increased from 76.1% at baseline to 85.4% at follow up showing that the use of the booklet had a positive impact on TB knowledge. Poor knowledge areas were identified as being related to TB medication-related knowledge and drug-resistant TB, highlighting the need for additional intervention to improve knowledge in these areas. The health literacy level of CCWs, which was assessed using the modified Newest Vital Signs– South Africa test, showed that the majority of CCWs had only marginal health literacy, indicating the need for wider assessment of health literacy within CCWs, and the need to tailor training and information materials to cater for their health literacy levels. The pictorial-based, simple booklet tailored for CCWs was also found to enhance confidence in decision making, and reduce their uncertainty when confronted with difficult care scenarios. CCWs were enthusiastic about the inclusion of pictograms which were reported to enhance recall of TB information and understanding of text. The booklet also served as a patient educational tool, where it reportedly improved communication and had a positive effect on the CCW-patient interpersonal relationship. The simplicity of the booklet and the inclusion of pictograms resulted in a user-friendly appealing information source for patients. Factors contributing to the success of the booklet can be attributed to paying attention to CCW information needs, involving CCWs in the design process, translating the booklet into local dialect, ensuring simplicity of the text and including pictograms that had undergone a rigorous design process. This study was the first to design TB information materials targeted specifically for CCWs that were also suitable as patient education materials. The study demonstrated that these information materials can have a positive outcome on CCW roles in TB care by improving their knowledge and facilitating patient communication and education.
- Full Text:
- Date Issued: 2016
- Authors: Okeyo, Ida L A
- Date: 2016
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: http://hdl.handle.net/10962/4211 , vital:20633
- Description: According to the 2015 World Health Organisation global tuberculosis report, South Africa had 155,473 new TB cases in the last year, 61% of whom were HIV-positive. The tuberculosis (TB) epidemic in South Africa has resulted in the increasing use of community care workers (CCWs) for the management and supervision of TB patients on treatment. CCWs are increasingly being deployed to address the shortages of healthcare workers. CCWs supervising TB patients often act as information providers, advising and counselling patients on general care and medication use. Their effectiveness depends on appropriate knowledge, adequate training and access to good quality information about TB and TB medicines. The hypothesis for this study was that user-friendly, simple, illustrated information can enhance TB knowledge of CCWs, as well as serve as a practice tool in facilitating their counselling and education of patients. A conceptual framework was used to guide the development of an intervention to test this hypothesis through the following objectives: exploring the roles and TB information needs of CCWs working with TB patients; evaluating baseline TB knowledge and health literacy levels of CCWs; developing simple, illustrated information materials to address CCW TB information needs; and assessing the influence of the information materials on TB knowledge and practice of CCWs. Six CCWs from Grahamstown Hospice and 25 CCWs from six primary healthcare clinics in Grahamstown participated in the study, which was conducted in three main phases. Phase 1 began with focus group discussions and individual semi-structured interviews with 14 CCWs to explore their perceptions regarding their roles in TB care and their information needs. This was followed by individual interviews with all 31 CCWs using a structured questionnaire to collect quantitative data on health literacy and establish baseline TB knowledge. For Phase 2, the design of an A5 booklet was informed by the findings from Phase 1 and contained information about TB and TB medication. Pictograms were designed using a rigorous, iterative design process and were included in the booklet which was translated into isiXhosa and Afrikaans. The booklets were individually distributed to CCWs during an information session in which the topics in the booklet were discussed. Three months after completion of Phase 2, individual follow-up interviews were conducted with all CCWs to measure post-intervention TB knowledge. Focus group discussions or semi-structured interviews were conducted with 19 of the CCWs to explore the role and impact of the information materials on everyday CCW practice. Qualitative data were transcribed and analysed thematically by developing codes and identifying themes. Quantitative results were analysed using the t-test, Pearson Chi-square and a Z-test of proportions at a 0.05 level of significance. The conceptual framework provided a useful lens through which to view, and reflect on, the interaction between the elements of the healthcare system in relation to the results obtained. CCWs associated their roles in TB control with helping patients and having an impact in patients’ lives which they perceived as being meaningful. The good relationships with patients noted by study CCWs, as well as the appreciation they received from patients, contributed to their confidence and belief that they were well positioned and able to positively influence health outcomes. This study found that CCWs in the healthcare system were disadvantaged by the lack of support and supervision, deficiencies in training and lack of information materials, all of which reflect a negative interaction between CCWs with the healthcare system. Use of the booklet resulted in an improvement in CCW knowledge about the disease, TB medication, MDR and XDR-TB and HIV/AIDS and TB co-infection. The mean knowledge score significantly increased from 76.1% at baseline to 85.4% at follow up showing that the use of the booklet had a positive impact on TB knowledge. Poor knowledge areas were identified as being related to TB medication-related knowledge and drug-resistant TB, highlighting the need for additional intervention to improve knowledge in these areas. The health literacy level of CCWs, which was assessed using the modified Newest Vital Signs– South Africa test, showed that the majority of CCWs had only marginal health literacy, indicating the need for wider assessment of health literacy within CCWs, and the need to tailor training and information materials to cater for their health literacy levels. The pictorial-based, simple booklet tailored for CCWs was also found to enhance confidence in decision making, and reduce their uncertainty when confronted with difficult care scenarios. CCWs were enthusiastic about the inclusion of pictograms which were reported to enhance recall of TB information and understanding of text. The booklet also served as a patient educational tool, where it reportedly improved communication and had a positive effect on the CCW-patient interpersonal relationship. The simplicity of the booklet and the inclusion of pictograms resulted in a user-friendly appealing information source for patients. Factors contributing to the success of the booklet can be attributed to paying attention to CCW information needs, involving CCWs in the design process, translating the booklet into local dialect, ensuring simplicity of the text and including pictograms that had undergone a rigorous design process. This study was the first to design TB information materials targeted specifically for CCWs that were also suitable as patient education materials. The study demonstrated that these information materials can have a positive outcome on CCW roles in TB care by improving their knowledge and facilitating patient communication and education.
- Full Text:
- Date Issued: 2016
Community development and rural poverty in Zimbabwe : a policy perspective
- Authors: Chatindo, Annah
- Date: 2016
- Subjects: Community development -- Zimbabwe Rural development -- Government policy -- Zimbabwe Poverty -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MSoc
- Identifier: http://hdl.handle.net/10353/6092 , vital:29490
- Description: There is persistence of rural poverty in African countries despite efforts by governments to implement community development projects to curb poverty in impoverished rural communities. Zimbabwe adopted the Poverty Alleviation Action Plan (PAAP) under which community development programme was initiated. Community development projects by NGOs and government did not manage to meet the needs of the impoverished communities in Mvuma rural communities. More so, the incremental approach to policy making adopted by the government of Zimbabwe failed to embrace the principles of community development, for example, participation of community projects beneficiaries on everything that impact to their way of living. Despite all the efforts to alleviate rural poverty in Mvuma rural district there is still persistence of rural poverty, characterized by poor roads and struggling of most families to meeting basic needs. Mvuma rural communities are rich in mineral resources and water sources that can be utilized instead of relying on external resources through NGOs. This therefore, calls on the government and NGOs to collaborate towards capacitating Mvuma rural dwellers in order to help alleviate poverty. This study employed qualitative approach to research as it was aimed at describing and understanding rather than explaining human behaviour. Purposive or judgmental sampling was applied. This technique was used as the researcher wanted to get hold of the people who are directly or indirectly linked to implementation of community development projects. However, quantitative method was used to gather demographic information. The PAAP policy relevance to poverty reduction in Mvuma rural district and in Zimbabwe in general was the heart of this study.
- Full Text:
- Date Issued: 2016
- Authors: Chatindo, Annah
- Date: 2016
- Subjects: Community development -- Zimbabwe Rural development -- Government policy -- Zimbabwe Poverty -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MSoc
- Identifier: http://hdl.handle.net/10353/6092 , vital:29490
- Description: There is persistence of rural poverty in African countries despite efforts by governments to implement community development projects to curb poverty in impoverished rural communities. Zimbabwe adopted the Poverty Alleviation Action Plan (PAAP) under which community development programme was initiated. Community development projects by NGOs and government did not manage to meet the needs of the impoverished communities in Mvuma rural communities. More so, the incremental approach to policy making adopted by the government of Zimbabwe failed to embrace the principles of community development, for example, participation of community projects beneficiaries on everything that impact to their way of living. Despite all the efforts to alleviate rural poverty in Mvuma rural district there is still persistence of rural poverty, characterized by poor roads and struggling of most families to meeting basic needs. Mvuma rural communities are rich in mineral resources and water sources that can be utilized instead of relying on external resources through NGOs. This therefore, calls on the government and NGOs to collaborate towards capacitating Mvuma rural dwellers in order to help alleviate poverty. This study employed qualitative approach to research as it was aimed at describing and understanding rather than explaining human behaviour. Purposive or judgmental sampling was applied. This technique was used as the researcher wanted to get hold of the people who are directly or indirectly linked to implementation of community development projects. However, quantitative method was used to gather demographic information. The PAAP policy relevance to poverty reduction in Mvuma rural district and in Zimbabwe in general was the heart of this study.
- Full Text:
- Date Issued: 2016
Community structure and trophic ecology of shallow and deep rocky reefs in a well-established marine protected area
- Authors: Heyns, Elodie R
- Date: 2016
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/54438 , vital:26565
- Description: The now formally adopted ecosystem approach to fisheries (EAF) considers not only commercially important species, but the entire ecosystem and the processes that support these species. A key component of EAF management is the implementation of no-take Marine Protected Areas (MPAs). Shallow water fish stocks are depleted and fishing effort is moving deeper and further offshore to keep up with demands. This situation calls for a detailed investigation of deep nearshore reefs to provide critical information relevant to policy uptake and management decisions regarding existing and new MPAs in terms of zonation and use. To address this need, the aim of this thesis was to investigate reefs that lie between 45 and 75 m and compare them in terms of community structure and function to the relatively well-studied shallow reefs that lie within SCUBA diving depth (<25 m). Ecological collections were made in the centre of a large and well-established MPA, Tsitsikamma National Park, to ensure that data represented non-anthropogenically impacted communities. Data were collected from two study sites; Rheeders Reef, (shallow reef) and Middlebank, a deep reef complex situated near the Storms River Mouth. The first step to address the aim of this study was to obtain baseline data on the distribution patterns of both the macrobenthic invertebrates and fish assemblages. Baseline data were obtained by underwater video methods and included the use of a remotely operated vehicle, baited remote underwater stereo-video systems (stereo-BRUVs) and traditional underwater camera equipment operated by SCUBA divers. To establish functional differences between the two study sites, fatty acid (FA) and stable isotope (SI) analyses were employed. These biomarker techniques provided insight into the importance of different sources of primary production, nutritional condition and species packing. From 360 photoquadrats examined for macrobenthic invertebrate distribution patterns, 161 invertebrates were identified that demonstrated a clear changeover of species along the depth gradient. Species richness was highest on the shallow reef and decreased with an increase in depth. To understand how the measured environmental variables impacted the macrobenthic assemblage data a LINKTREE analysis was performed. LINKTREEs produce hierarchical cluster analysis based on the macrobenthic assemblage data and provide a threshold of environmental variables that correspond to each cluster. The outcome of the LINKTREE analysis indicated that the changeover of species resulted in four distinct clusters, each cluster associated with a particular set of environmental variables that fell within a depth range. On the shallowest sites, the high energy environment resulting from wave action and surge prevented the settlement of suspended particles. The high energy environment of the shallow reef selected for low-growing encrusting species. High light intensities supported great abundances of benthic algae, and as light was lost with increasing depth, algal cover gradually diminished until it was completely absent on the deep reef. The reduced impact of surface wave action on the deep reef caused increased levels of settled suspended particles. The high levels of settled particles likely caused clogging of feeding parts of the encrusting species. Consequently, upright growth forms were more common in the lower energy environment of the deep reef. A total of 48 fish species were identified from 51 stereo-BRUVs samples. Fish assemblages differed significantly between the shallow and deep reefs. The shallowest sites were characterised by many small and juvenile fish species that fed at lower trophic levels. The deep reef supported the majority of the large predatory fish that fed at higher trophic levels. Many species demonstrated depth-related ontogenetic shifts in habitat use, and as such the deep reef hosted the majority of the sexually mature individuals. The fish assemblages also demonstrated a strong association with the macrobenthic clusters identified as habitat types by the LINKTREE analysis. The results from 201 FA and 191 SI samples provided information on specific feeding interactions, but more importantly shed some light on different processes that supported the shallow and deep reef communities. The shallow reef community was characterised by greater diversity of food sources, a pattern that could be explained by the presence of benthic algae and terrestrial inputs. Greater diversity of carbon sources at the bottom of the food web meant that a larger variety of species could be supported. Higher species richness increased the number of distinct taxa that performed similar functions, rendering the shallow reef more redundant and consequently more resilient to disturbance. In contrast, the deep reef demonstrated a food web supported mainly by pelagic production, which was more variable both over space and time. The deep reef was less redundant when compared to the shallow reef, as fewer species demonstrated similar trophic niches. These factors, in addition to the increased presence of sensitive calcareous macrobenthic species on the deep study site, rendered the deep reef more vulnerable to disturbance when compared to the shallow reef. Although the data presented here were from a single study area, the limitations typically associated with these inaccessible and challenging sampling environments made the dataset a significant contribution to the knowledge of reef ecosystems. The study addressed priority research questions for South Africa as identified during the National Biodiversity Assessment. The observable differences in structure, function and vulnerability point to the need for continued protection of our shallow reefs and offshore expansion of our MPA networks. Future research should determine if the patterns identified here are common throughout the Agulhas Ecoregion to provide managers with robust evidence for the extension our MPAs offshore.
- Full Text:
- Date Issued: 2016
- Authors: Heyns, Elodie R
- Date: 2016
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/54438 , vital:26565
- Description: The now formally adopted ecosystem approach to fisheries (EAF) considers not only commercially important species, but the entire ecosystem and the processes that support these species. A key component of EAF management is the implementation of no-take Marine Protected Areas (MPAs). Shallow water fish stocks are depleted and fishing effort is moving deeper and further offshore to keep up with demands. This situation calls for a detailed investigation of deep nearshore reefs to provide critical information relevant to policy uptake and management decisions regarding existing and new MPAs in terms of zonation and use. To address this need, the aim of this thesis was to investigate reefs that lie between 45 and 75 m and compare them in terms of community structure and function to the relatively well-studied shallow reefs that lie within SCUBA diving depth (<25 m). Ecological collections were made in the centre of a large and well-established MPA, Tsitsikamma National Park, to ensure that data represented non-anthropogenically impacted communities. Data were collected from two study sites; Rheeders Reef, (shallow reef) and Middlebank, a deep reef complex situated near the Storms River Mouth. The first step to address the aim of this study was to obtain baseline data on the distribution patterns of both the macrobenthic invertebrates and fish assemblages. Baseline data were obtained by underwater video methods and included the use of a remotely operated vehicle, baited remote underwater stereo-video systems (stereo-BRUVs) and traditional underwater camera equipment operated by SCUBA divers. To establish functional differences between the two study sites, fatty acid (FA) and stable isotope (SI) analyses were employed. These biomarker techniques provided insight into the importance of different sources of primary production, nutritional condition and species packing. From 360 photoquadrats examined for macrobenthic invertebrate distribution patterns, 161 invertebrates were identified that demonstrated a clear changeover of species along the depth gradient. Species richness was highest on the shallow reef and decreased with an increase in depth. To understand how the measured environmental variables impacted the macrobenthic assemblage data a LINKTREE analysis was performed. LINKTREEs produce hierarchical cluster analysis based on the macrobenthic assemblage data and provide a threshold of environmental variables that correspond to each cluster. The outcome of the LINKTREE analysis indicated that the changeover of species resulted in four distinct clusters, each cluster associated with a particular set of environmental variables that fell within a depth range. On the shallowest sites, the high energy environment resulting from wave action and surge prevented the settlement of suspended particles. The high energy environment of the shallow reef selected for low-growing encrusting species. High light intensities supported great abundances of benthic algae, and as light was lost with increasing depth, algal cover gradually diminished until it was completely absent on the deep reef. The reduced impact of surface wave action on the deep reef caused increased levels of settled suspended particles. The high levels of settled particles likely caused clogging of feeding parts of the encrusting species. Consequently, upright growth forms were more common in the lower energy environment of the deep reef. A total of 48 fish species were identified from 51 stereo-BRUVs samples. Fish assemblages differed significantly between the shallow and deep reefs. The shallowest sites were characterised by many small and juvenile fish species that fed at lower trophic levels. The deep reef supported the majority of the large predatory fish that fed at higher trophic levels. Many species demonstrated depth-related ontogenetic shifts in habitat use, and as such the deep reef hosted the majority of the sexually mature individuals. The fish assemblages also demonstrated a strong association with the macrobenthic clusters identified as habitat types by the LINKTREE analysis. The results from 201 FA and 191 SI samples provided information on specific feeding interactions, but more importantly shed some light on different processes that supported the shallow and deep reef communities. The shallow reef community was characterised by greater diversity of food sources, a pattern that could be explained by the presence of benthic algae and terrestrial inputs. Greater diversity of carbon sources at the bottom of the food web meant that a larger variety of species could be supported. Higher species richness increased the number of distinct taxa that performed similar functions, rendering the shallow reef more redundant and consequently more resilient to disturbance. In contrast, the deep reef demonstrated a food web supported mainly by pelagic production, which was more variable both over space and time. The deep reef was less redundant when compared to the shallow reef, as fewer species demonstrated similar trophic niches. These factors, in addition to the increased presence of sensitive calcareous macrobenthic species on the deep study site, rendered the deep reef more vulnerable to disturbance when compared to the shallow reef. Although the data presented here were from a single study area, the limitations typically associated with these inaccessible and challenging sampling environments made the dataset a significant contribution to the knowledge of reef ecosystems. The study addressed priority research questions for South Africa as identified during the National Biodiversity Assessment. The observable differences in structure, function and vulnerability point to the need for continued protection of our shallow reefs and offshore expansion of our MPA networks. Future research should determine if the patterns identified here are common throughout the Agulhas Ecoregion to provide managers with robust evidence for the extension our MPAs offshore.
- Full Text:
- Date Issued: 2016
Comparative analysis of characteristics of the various sugarcane bagasse types in terms of gasification
- Authors: Kula, Mpumezo
- Date: 2016
- Subjects: Bagasse Sugarcane -- Breeding Coal gasification
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/13392 , vital:39656
- Description: The insight that the fossil fuel reserves are limited, together with concerns over security of supply (i.e. the oil crises), initiated the first raise of interest in biomass and all other renewable energy forms. However, the concern grew that global warming and the resulting climate change were enhanced by carbon dioxide (CO2) emissions resulting from fossil fuel consumption. Meanwhile, biomass energy is thought to account for 14–15percent of total world energy consumption. Hence, the exploitation and utilization of biomass energy are effective and necessary for relieving the pressures caused by environmental pollution and fossil fuel shortage (Lv et al., 2010). Recently, extensive research aimed at converting biomass to useful energy have been carried out, especially pyrolysis and gasification, which are particularly suitable for the effective and efficient utilization of biomass. Sugarcane bagasse is the main byproduct of sugarcane mill, ready available at the production site so that it may be a suitable raw material for the production of biofuels, chemicals, and electricity. Among the methods that have been previously studied, is this particular study we explore thermochemical process, gasification. The properties of sugarcane bagasse relevant to gasification are briefly reviewed. The compositions of the bagasse as a fuel are variable, especially with respect to inorganic constituents important to the critical problems of sintering, fouling and slagging. Alkali and alkaline earth metals, in combination with other fuel elements such as silica and sulfur, are responsible for many undesirable reactions in a gasifier system. The three sugarcane bagasse types namely washed, unwashed and the depithed sugarcane bagasse were subjected in different types of characterization to review and compare their characteristics for gasification. Ultimate analysis was used to determine the elemental compositions and this was helpful in estimating the energy input of the materials. Elemental compositions were determined with the CHNS analyzer which gave the percent compositions of each fuel in terms of Carbon, Hydrogen, Nitrogen, Sulphur as well as Oxygen (by difference) and the SEM/EDX which gave the elemental composition of the materials as can be viewed from the EDX. The proximate analysis which is the physical characterization of the materials was carried out to preview the behavior of the sugarcane bagasse when subjected into high temperatures as the gasification process uses very high temperatures. These were determined by the TGA and the volatile matter content; fixed carbon content, moisture content and ash content were extrapolated from the resulting thermogram. SEM images for surface structures of the bagasse and FTIR for the structural functionality and bonding structures. The characterization of the bagasse was conducted to compare their gasification properties.
- Full Text:
- Date Issued: 2016
- Authors: Kula, Mpumezo
- Date: 2016
- Subjects: Bagasse Sugarcane -- Breeding Coal gasification
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/13392 , vital:39656
- Description: The insight that the fossil fuel reserves are limited, together with concerns over security of supply (i.e. the oil crises), initiated the first raise of interest in biomass and all other renewable energy forms. However, the concern grew that global warming and the resulting climate change were enhanced by carbon dioxide (CO2) emissions resulting from fossil fuel consumption. Meanwhile, biomass energy is thought to account for 14–15percent of total world energy consumption. Hence, the exploitation and utilization of biomass energy are effective and necessary for relieving the pressures caused by environmental pollution and fossil fuel shortage (Lv et al., 2010). Recently, extensive research aimed at converting biomass to useful energy have been carried out, especially pyrolysis and gasification, which are particularly suitable for the effective and efficient utilization of biomass. Sugarcane bagasse is the main byproduct of sugarcane mill, ready available at the production site so that it may be a suitable raw material for the production of biofuels, chemicals, and electricity. Among the methods that have been previously studied, is this particular study we explore thermochemical process, gasification. The properties of sugarcane bagasse relevant to gasification are briefly reviewed. The compositions of the bagasse as a fuel are variable, especially with respect to inorganic constituents important to the critical problems of sintering, fouling and slagging. Alkali and alkaline earth metals, in combination with other fuel elements such as silica and sulfur, are responsible for many undesirable reactions in a gasifier system. The three sugarcane bagasse types namely washed, unwashed and the depithed sugarcane bagasse were subjected in different types of characterization to review and compare their characteristics for gasification. Ultimate analysis was used to determine the elemental compositions and this was helpful in estimating the energy input of the materials. Elemental compositions were determined with the CHNS analyzer which gave the percent compositions of each fuel in terms of Carbon, Hydrogen, Nitrogen, Sulphur as well as Oxygen (by difference) and the SEM/EDX which gave the elemental composition of the materials as can be viewed from the EDX. The proximate analysis which is the physical characterization of the materials was carried out to preview the behavior of the sugarcane bagasse when subjected into high temperatures as the gasification process uses very high temperatures. These were determined by the TGA and the volatile matter content; fixed carbon content, moisture content and ash content were extrapolated from the resulting thermogram. SEM images for surface structures of the bagasse and FTIR for the structural functionality and bonding structures. The characterization of the bagasse was conducted to compare their gasification properties.
- Full Text:
- Date Issued: 2016
Comparative analysis of characteristics of the various sugarcane bagasse types in terms of gasification
- Authors: Kula, Mpumezo
- Date: 2016
- Subjects: Bagasse Bioenergetics Sugarcane -- Breeding Solar energy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/1929 , vital:27584
- Description: The insight that the fossil fuel reserves are limited, together with concerns over security of supply (i.e. the oil crises), initiated the first raise of interest in biomass and all other renewable energy forms. However, the concern grew that global warming and the resulting climate change were enhanced by carbon dioxide (CO2) emissions resulting from fossil fuel consumption. Meanwhile, biomass energy is thought to account for 14–15% of total world energy consumption. Hence, the exploitation and utilization of biomass energy are effective and necessary for relieving the pressures caused by environmental pollution and fossil fuel shortage (Lv et al., 2010). Recently, extensive research aimed at converting biomass to useful energy have been carried out, especially pyrolysis and gasification, which are particularly suitable for the effective and efficient utilization of biomass. Sugarcane bagasse is the main byproduct of sugarcane mill, ready available at the production site so that it may be a suitable raw material for the production of biofuels, chemicals, and electricity. Among the methods that have been previously studied, is this particular study we explore thermochemical process, gasification. The properties of sugarcane bagasse relevant to gasification are briefly reviewed. The compositions of the bagasse as a fuel are variable, especially with respect to inorganic constituents important to the critical problems of sintering, fouling and slagging. Alkali and alkaline earth metals, in combination with other fuel elements such as silica and sulfur, are responsible for many undesirable reactions in a gasifier system.
- Full Text:
- Date Issued: 2016
- Authors: Kula, Mpumezo
- Date: 2016
- Subjects: Bagasse Bioenergetics Sugarcane -- Breeding Solar energy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/1929 , vital:27584
- Description: The insight that the fossil fuel reserves are limited, together with concerns over security of supply (i.e. the oil crises), initiated the first raise of interest in biomass and all other renewable energy forms. However, the concern grew that global warming and the resulting climate change were enhanced by carbon dioxide (CO2) emissions resulting from fossil fuel consumption. Meanwhile, biomass energy is thought to account for 14–15% of total world energy consumption. Hence, the exploitation and utilization of biomass energy are effective and necessary for relieving the pressures caused by environmental pollution and fossil fuel shortage (Lv et al., 2010). Recently, extensive research aimed at converting biomass to useful energy have been carried out, especially pyrolysis and gasification, which are particularly suitable for the effective and efficient utilization of biomass. Sugarcane bagasse is the main byproduct of sugarcane mill, ready available at the production site so that it may be a suitable raw material for the production of biofuels, chemicals, and electricity. Among the methods that have been previously studied, is this particular study we explore thermochemical process, gasification. The properties of sugarcane bagasse relevant to gasification are briefly reviewed. The compositions of the bagasse as a fuel are variable, especially with respect to inorganic constituents important to the critical problems of sintering, fouling and slagging. Alkali and alkaline earth metals, in combination with other fuel elements such as silica and sulfur, are responsible for many undesirable reactions in a gasifier system.
- Full Text:
- Date Issued: 2016
Comparative analysis of existing pipelines for assessment of arbuscular mycorrhizal fungal biodiversity in natural and commercial rooibos (aspalathus linearis) and honeybush (cyclopia intermedia) soil samples
- Authors: De Wit, Hermina Johanna
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/2915 , vital:20342
- Full Text:
- Date Issued: 2016
- Authors: De Wit, Hermina Johanna
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/2915 , vital:20342
- Full Text:
- Date Issued: 2016
Comparative perspectives on the doctrine of vicarious liability
- Authors: Roets, Maria Elizabeth
- Date: 2016
- Subjects: Liability (Law) -- South Africa , Respondeat superior
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/3675 , vital:20452
- Description: The doctrine of vicarious liability provides justification for a deviation from the general rule that fault is an indispensable requirement to attach liability to an individual. The doctrine provides that an aggrieved party may hold an employer liable for the wrongful or delictual conduct of its employees. The South African legal system inherited the doctrine of vicarious liability from common-law and the doctrine is deeply rooted in English-law. The South African legal sphere is subject to constant transformation and as a result hereof, the common-law doctrine of vicarious liability should also be subjected to transformation. Uncertainty reigned in relation to whether the judiciary or the legislature carried the burden to develop the doctrine of vicarious liability in order to accommodate the needs of a modern society. The doctrine of vicarious liability is a universal concept and the transformation that the doctrine has undergone in other common-law countries could prove to be useful guidelines to assist with the development of the doctrine within the South African legal context. The doctrine places a tremendous burden on employers by providing that employers can be held accountable for the unlawful and delictual actions of its employees. One of the stumbling blocks that the South African judiciary had to overcome was to determine in which instances the liability of employers should be restricted in relation to the conduct of their employees. It is common cause that the doctrine, due to its onerous nature, cannot be regarded as absolute. Perhaps one of the most significant restrictions that has been placed on the application of the doctrine has been the fact that employers may only be held accountable for the wrongful conduct of its employees in instances where the employee has acted within the scope of his or her employment. The dividing line between acts committed within the scope of employment and acts committed outside of the scope of employment is a very fine line and the judiciary tend to tread carefully upon pronouncing on such matters. The Constitution of the Republic of South Africa, 1996 reiterates the importance of ensuring that the constitutional values of reasonableness and fairness are adhered to. An aggrieved party would be left with deep scars in the event that the individual is prohibited from instituting an action against an employer for harm or loss suffered as a result of a wrongful action of an employee of that employer. The employer would suffer prejudice in the event that the employer is held accountable for the wrongful conduct of an employee which is unrelated to the business of the employer. The answer to the conundrum lies in striking a balance between the prejudice suffered by the aggrieved party and the prejudice suffered by the employer. The aim of the judiciary should be to ensure that restrictions made to the application and interpretation of the doctrine of vicarious liability would be justifiable and reasonable in terms of the Constitution. The balancing of the interests of the employer and the balancing of the interests of the aggrieved parties are essential to ensure that justice prevails. It is common cause that no general test exist in the South African legal sphere in order to determine the liability of an employer for the wrongful conduct of its employees. Due to the complex nature of the doctrine of vicarious liability it can be averred that a general test would not address the technicalities of the doctrine. An important consideration to determine the liability of an employer is to establish whether a sufficiently close connection existed between the duties of the employee and the wrongful conduct of the employee. This factor can be considered as the “golden thread” that must be present to determine the liability of the employer. The doctrine of vicarious liability is a concept which has proved to be imperative in the South African legal sphere. Employers should be held accountable for the wrongful conduct of its employees, but simultaneously the constitutional values of reasonableness and fairness should be adhered to. Even though vicarious liability is an onerous concept for employers, justice would prevail if the values of the Constitution are applied religiously.
- Full Text:
- Date Issued: 2016
- Authors: Roets, Maria Elizabeth
- Date: 2016
- Subjects: Liability (Law) -- South Africa , Respondeat superior
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/3675 , vital:20452
- Description: The doctrine of vicarious liability provides justification for a deviation from the general rule that fault is an indispensable requirement to attach liability to an individual. The doctrine provides that an aggrieved party may hold an employer liable for the wrongful or delictual conduct of its employees. The South African legal system inherited the doctrine of vicarious liability from common-law and the doctrine is deeply rooted in English-law. The South African legal sphere is subject to constant transformation and as a result hereof, the common-law doctrine of vicarious liability should also be subjected to transformation. Uncertainty reigned in relation to whether the judiciary or the legislature carried the burden to develop the doctrine of vicarious liability in order to accommodate the needs of a modern society. The doctrine of vicarious liability is a universal concept and the transformation that the doctrine has undergone in other common-law countries could prove to be useful guidelines to assist with the development of the doctrine within the South African legal context. The doctrine places a tremendous burden on employers by providing that employers can be held accountable for the unlawful and delictual actions of its employees. One of the stumbling blocks that the South African judiciary had to overcome was to determine in which instances the liability of employers should be restricted in relation to the conduct of their employees. It is common cause that the doctrine, due to its onerous nature, cannot be regarded as absolute. Perhaps one of the most significant restrictions that has been placed on the application of the doctrine has been the fact that employers may only be held accountable for the wrongful conduct of its employees in instances where the employee has acted within the scope of his or her employment. The dividing line between acts committed within the scope of employment and acts committed outside of the scope of employment is a very fine line and the judiciary tend to tread carefully upon pronouncing on such matters. The Constitution of the Republic of South Africa, 1996 reiterates the importance of ensuring that the constitutional values of reasonableness and fairness are adhered to. An aggrieved party would be left with deep scars in the event that the individual is prohibited from instituting an action against an employer for harm or loss suffered as a result of a wrongful action of an employee of that employer. The employer would suffer prejudice in the event that the employer is held accountable for the wrongful conduct of an employee which is unrelated to the business of the employer. The answer to the conundrum lies in striking a balance between the prejudice suffered by the aggrieved party and the prejudice suffered by the employer. The aim of the judiciary should be to ensure that restrictions made to the application and interpretation of the doctrine of vicarious liability would be justifiable and reasonable in terms of the Constitution. The balancing of the interests of the employer and the balancing of the interests of the aggrieved parties are essential to ensure that justice prevails. It is common cause that no general test exist in the South African legal sphere in order to determine the liability of an employer for the wrongful conduct of its employees. Due to the complex nature of the doctrine of vicarious liability it can be averred that a general test would not address the technicalities of the doctrine. An important consideration to determine the liability of an employer is to establish whether a sufficiently close connection existed between the duties of the employee and the wrongful conduct of the employee. This factor can be considered as the “golden thread” that must be present to determine the liability of the employer. The doctrine of vicarious liability is a concept which has proved to be imperative in the South African legal sphere. Employers should be held accountable for the wrongful conduct of its employees, but simultaneously the constitutional values of reasonableness and fairness should be adhered to. Even though vicarious liability is an onerous concept for employers, justice would prevail if the values of the Constitution are applied religiously.
- Full Text:
- Date Issued: 2016
Comparative studies on photophysical and optical limiting characterizations of low symmetry phthalocyanine linked to Fe 3 O 4–Ag core–shell or hybrid nanoparticles
- Bankole, Owolabi M, Nyokong, Tebello
- Authors: Bankole, Owolabi M , Nyokong, Tebello
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/188788 , vital:44785 , xlink:href="https://doi.org/10.1039/C6NJ01511E"
- Description: Photophysical and nonlinear optical (NLO) behaviours of low symmetry zinc phthalocyanine (1) linked to Fe3O4/Ag core–shell (represented as Fe/Ag) or Fe3O4–Ag hybrid (represented as FeAg) nanoparticles were investigated in DMSO. Triplet quantum yields and NLO parameters of phthalocyanine improved due to the combined effects of magnetic–metallic nanoparticles. A direct relationship between the increased triplet excited state absorptions by already excited molecules and reverse saturable absorption (RSA) was established as the predominant mechanism responsible for nonlinearity of the samples. Our findings show that, at the same approximate concentrations and conditions, 1-FeAg enhanced the OL potentials of 1 more than 1-Fe/Ag.
- Full Text:
- Date Issued: 2016
- Authors: Bankole, Owolabi M , Nyokong, Tebello
- Date: 2016
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/188788 , vital:44785 , xlink:href="https://doi.org/10.1039/C6NJ01511E"
- Description: Photophysical and nonlinear optical (NLO) behaviours of low symmetry zinc phthalocyanine (1) linked to Fe3O4/Ag core–shell (represented as Fe/Ag) or Fe3O4–Ag hybrid (represented as FeAg) nanoparticles were investigated in DMSO. Triplet quantum yields and NLO parameters of phthalocyanine improved due to the combined effects of magnetic–metallic nanoparticles. A direct relationship between the increased triplet excited state absorptions by already excited molecules and reverse saturable absorption (RSA) was established as the predominant mechanism responsible for nonlinearity of the samples. Our findings show that, at the same approximate concentrations and conditions, 1-FeAg enhanced the OL potentials of 1 more than 1-Fe/Ag.
- Full Text:
- Date Issued: 2016
Comparing the perfomance of 3 to 6 year old children on the performance and practical reasoning subscales of the Griffiths mental development scales: extended revised with the foundations of learning subscale of the Griffiths III
- Authors: Kolver, Christél
- Date: 2016
- Subjects: Child psychology
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/13293 , vital:27172
- Description: The developmental assessment of children is very important so that adequate resources and intervention programmes can be initiated. Updating psychometric assessments is mandatory for different reasons, which include to update norms and to add new psychometric information. It is important for psychometric assessments that measure child development to ensure that they continue to accurately reflect stages of development in a modern context. The Association for Research in Infant and Child Development (ARICD) is currently in the process of revising the Griffiths Scales. One of the many unique changes includes the newly formed Foundations of Learning Subscale. This Subscale was constructed from definition, sub-constructs and items, which encompassed the critical sub-constructs from the previous Performance and Practical Reasoning Subscales, while providing greater depth to the overarching construct. This study therefore, forms part of a larger study of developing the Griffiths III and aims to compare the performance of three to six-year-old children on these three Subscales. The study employed a mixed method approach, which included 259 children matched on the Griffiths Mental Development Scales – Extended Revised and the Griffith III. The quantitative aspect of the research included descriptive statistics, independent sample t-tests as well as pearson correlations. Differences and similarities were found from the results. The relationships varied from high correlation, strong relationships to low correlation, definite but small relationships. This was further explored through a qualitative analysis between the constructs assessed on each of the Subscales, as well as a qualitative analysis on the items of Subscale A, brought from Subscale E and F and the new items.
- Full Text:
- Date Issued: 2016
- Authors: Kolver, Christél
- Date: 2016
- Subjects: Child psychology
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/13293 , vital:27172
- Description: The developmental assessment of children is very important so that adequate resources and intervention programmes can be initiated. Updating psychometric assessments is mandatory for different reasons, which include to update norms and to add new psychometric information. It is important for psychometric assessments that measure child development to ensure that they continue to accurately reflect stages of development in a modern context. The Association for Research in Infant and Child Development (ARICD) is currently in the process of revising the Griffiths Scales. One of the many unique changes includes the newly formed Foundations of Learning Subscale. This Subscale was constructed from definition, sub-constructs and items, which encompassed the critical sub-constructs from the previous Performance and Practical Reasoning Subscales, while providing greater depth to the overarching construct. This study therefore, forms part of a larger study of developing the Griffiths III and aims to compare the performance of three to six-year-old children on these three Subscales. The study employed a mixed method approach, which included 259 children matched on the Griffiths Mental Development Scales – Extended Revised and the Griffith III. The quantitative aspect of the research included descriptive statistics, independent sample t-tests as well as pearson correlations. Differences and similarities were found from the results. The relationships varied from high correlation, strong relationships to low correlation, definite but small relationships. This was further explored through a qualitative analysis between the constructs assessed on each of the Subscales, as well as a qualitative analysis on the items of Subscale A, brought from Subscale E and F and the new items.
- Full Text:
- Date Issued: 2016