A case study of a teacher's questions in an English Second Language (ESL) classroom
- Authors: Nhlapo, Malefu
- Date: 1999
- Subjects: English language -- Study and teaching English language -- Study and teaching -- Foreign speakers -- Case studies
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1435 , http://hdl.handle.net/10962/d1003316
- Description: This research study seeks to explore and understand the way a Form C (the third year of high school) teacher asks questions in an English second language (ESL) classroom in a high school in Lesotho. As this is a small-scale study on a teacher’s questions in a familiar setting, an ethnographic stance was adopted. The researcher adopted the role of non-participant observer, recorded three different lesson types and took observational notes. She transcribed the lessons and used the transcription to interview both the teacher and the students. The interviews were recorded and transcribed by the researcher. She then analysed the classroom and interview data and invited the teacher to respond to the analysis she had made. The interview was also recorded and transcribed. The findings indicated that the teacher asked most questions in the three lesson types. He asked mainly lower order question. However, the nature of the questions varied according to the intentions of the teacher, even when the lesson type was the same. Although it is difficult to generalize from a small-scale study like this one, it is believed that this study has been beneficial in raising awareness about the nature and role of questions in classroom interaction, and also in raising awareness of the teacher. Consciousness raising may be essential to educators and researchers. Moreover, this research may enable educators to theorize their practice. This research demonstrates the need for teacher development. It argues that knowledge should be linked with the skills. Therefore, it proposes the need for teacher education to include an explicit focus on questioning since questions are an integral part of teaching and learning. It further proposes the need for teachers to plan their questions carefully as good questioning strategies may facilitate learning. To my knowledge, existing research on teachers’ questions has not linked the cognitive, linguistic and pedagogic functions of teachers’ questions. This study draws from literature on these three areas while acknowledging the importance of taking into account contextual issues in analysing teachers’ questions. It therefore concludes that, content, curriculum, and the teacher’s intentions and his/her ideologies cannot be ignored in the study of a teacher’s questions.
- Full Text:
- Date Issued: 1999
- Authors: Nhlapo, Malefu
- Date: 1999
- Subjects: English language -- Study and teaching English language -- Study and teaching -- Foreign speakers -- Case studies
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1435 , http://hdl.handle.net/10962/d1003316
- Description: This research study seeks to explore and understand the way a Form C (the third year of high school) teacher asks questions in an English second language (ESL) classroom in a high school in Lesotho. As this is a small-scale study on a teacher’s questions in a familiar setting, an ethnographic stance was adopted. The researcher adopted the role of non-participant observer, recorded three different lesson types and took observational notes. She transcribed the lessons and used the transcription to interview both the teacher and the students. The interviews were recorded and transcribed by the researcher. She then analysed the classroom and interview data and invited the teacher to respond to the analysis she had made. The interview was also recorded and transcribed. The findings indicated that the teacher asked most questions in the three lesson types. He asked mainly lower order question. However, the nature of the questions varied according to the intentions of the teacher, even when the lesson type was the same. Although it is difficult to generalize from a small-scale study like this one, it is believed that this study has been beneficial in raising awareness about the nature and role of questions in classroom interaction, and also in raising awareness of the teacher. Consciousness raising may be essential to educators and researchers. Moreover, this research may enable educators to theorize their practice. This research demonstrates the need for teacher development. It argues that knowledge should be linked with the skills. Therefore, it proposes the need for teacher education to include an explicit focus on questioning since questions are an integral part of teaching and learning. It further proposes the need for teachers to plan their questions carefully as good questioning strategies may facilitate learning. To my knowledge, existing research on teachers’ questions has not linked the cognitive, linguistic and pedagogic functions of teachers’ questions. This study draws from literature on these three areas while acknowledging the importance of taking into account contextual issues in analysing teachers’ questions. It therefore concludes that, content, curriculum, and the teacher’s intentions and his/her ideologies cannot be ignored in the study of a teacher’s questions.
- Full Text:
- Date Issued: 1999
A case-study of principal succession : the experience of a high school principal and staff
- Authors: Dowding, Susan Patricia
- Date: 1997
- Subjects: Educational leadership School principals -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1440 , http://hdl.handle.net/10962/d1003321
- Description: This is a study of a principal succession In a non-racial, multicultural High-School in the North West Province of South Africa, formerly the independent homeland known as "Bophuthatswana". I was employed at the school at the time and am, therefore, a complete member-researcher. I use a qualitative research approach which relies mostly on in-depth interviews, individually and in groups. I chose my sample by administering a short biographical questionnaire. I have sought to establish "what is happening?" in the succession process by reporting the insights and experiences of a staff and its new principal. While I use the stage frameworks of more traditional researchers in succession to provide a coherent structure for my analysis, I use the organisational socialisation perspective extensively to analyse the insights provided by the staff and principal. Unlike other principal succession studies, I include the insights of both the principal and the staff. The organisational socialisation approach emphasises that succession is an interactive, multidirectional process. My study reinforces many of the observations of other researchers in leadership succession, whether in business or Education. However, two elements of succession emerge which appear to be unique in terms of other succession literature. These elements include the impact of socio-political events and what I call "ethno-cultural" aspects on the succession socialisation process. I provide examples of the influence these factors exert in this principal succession. This study is therefore of potential significance to administrators in both Education and business in the South African context where there are significant changes taking place in the power structures and ethnic makeup of relevant organisations. I also identify a number of areas for further research.
- Full Text:
- Date Issued: 1997
- Authors: Dowding, Susan Patricia
- Date: 1997
- Subjects: Educational leadership School principals -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1440 , http://hdl.handle.net/10962/d1003321
- Description: This is a study of a principal succession In a non-racial, multicultural High-School in the North West Province of South Africa, formerly the independent homeland known as "Bophuthatswana". I was employed at the school at the time and am, therefore, a complete member-researcher. I use a qualitative research approach which relies mostly on in-depth interviews, individually and in groups. I chose my sample by administering a short biographical questionnaire. I have sought to establish "what is happening?" in the succession process by reporting the insights and experiences of a staff and its new principal. While I use the stage frameworks of more traditional researchers in succession to provide a coherent structure for my analysis, I use the organisational socialisation perspective extensively to analyse the insights provided by the staff and principal. Unlike other principal succession studies, I include the insights of both the principal and the staff. The organisational socialisation approach emphasises that succession is an interactive, multidirectional process. My study reinforces many of the observations of other researchers in leadership succession, whether in business or Education. However, two elements of succession emerge which appear to be unique in terms of other succession literature. These elements include the impact of socio-political events and what I call "ethno-cultural" aspects on the succession socialisation process. I provide examples of the influence these factors exert in this principal succession. This study is therefore of potential significance to administrators in both Education and business in the South African context where there are significant changes taking place in the power structures and ethnic makeup of relevant organisations. I also identify a number of areas for further research.
- Full Text:
- Date Issued: 1997
Agricultural-based commodity chains and development: the case of the tobacco sector in Zimbabwe
- Authors: Thring, Stephen Richard
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: http://hdl.handle.net/10962/5337 , vital:20814
- Description: This thesis examines the nature of governance in the Zimbabwean tobacco value chain and what upgrading implications this has for participants at the lower end of the value chain, with a particular focus on smallholder tobacco growers. The nature of governance and upgrading opportunities will provide further implications for broader economic development in Zimbabwe. Value chain analysis was the over-arching method, adopting a mixed methods approach of both quantitative and qualitative data analysis. Data attained from the Tobacco and Industry Marketing Board (TIMB) was used to construct a Zimbabwean tobacco profile. This information was used to construct a simple Global Value Chain (GVC) framework in order to obtain an understanding of the Zimbabwean tobacco value chain. Information was gathered at the top end of the value chain via documents and data from British American Tobacco (BAT) and information was gathered at the middle and lower end of the value chain through interviews. It was found that the Zimbabwean tobacco value chain is characterised by two types of governance: modular and hierarchy. Modular governance existed where the value chain was disjointed by the leaf merchant and hierarchy governance existed where cigarette manufacturers have vertically integrated themselves backwards into the tobacco growing segment. It was found that contract lines offer smallholder tobacco growers’ financial and technical support that would otherwise be difficult to attain. This increased the likelihood for smallholder tobacco growers to produce a high quality crop that met Good Agricultural Practices (GAP) and other compliancy requirements; therefore achieving product and process upgrading. However, the environmental impact of tobacco growing through deforestation and the possibility of lead cigarette manufacturers relocating their operations to a different geographical location (as is the nature of GVCs) threatens the sustainability of Zimbabwe’s tobacco industry. Despite these issues it was argued that the tobacco value chain could assist Zimbabwe’s economy in diversifying away from simple tobacco production towards valueadding tobacco sectors, such as processing, by-product processing and cigarette manufacturing.
- Full Text:
- Date Issued: 2017
- Authors: Thring, Stephen Richard
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: http://hdl.handle.net/10962/5337 , vital:20814
- Description: This thesis examines the nature of governance in the Zimbabwean tobacco value chain and what upgrading implications this has for participants at the lower end of the value chain, with a particular focus on smallholder tobacco growers. The nature of governance and upgrading opportunities will provide further implications for broader economic development in Zimbabwe. Value chain analysis was the over-arching method, adopting a mixed methods approach of both quantitative and qualitative data analysis. Data attained from the Tobacco and Industry Marketing Board (TIMB) was used to construct a Zimbabwean tobacco profile. This information was used to construct a simple Global Value Chain (GVC) framework in order to obtain an understanding of the Zimbabwean tobacco value chain. Information was gathered at the top end of the value chain via documents and data from British American Tobacco (BAT) and information was gathered at the middle and lower end of the value chain through interviews. It was found that the Zimbabwean tobacco value chain is characterised by two types of governance: modular and hierarchy. Modular governance existed where the value chain was disjointed by the leaf merchant and hierarchy governance existed where cigarette manufacturers have vertically integrated themselves backwards into the tobacco growing segment. It was found that contract lines offer smallholder tobacco growers’ financial and technical support that would otherwise be difficult to attain. This increased the likelihood for smallholder tobacco growers to produce a high quality crop that met Good Agricultural Practices (GAP) and other compliancy requirements; therefore achieving product and process upgrading. However, the environmental impact of tobacco growing through deforestation and the possibility of lead cigarette manufacturers relocating their operations to a different geographical location (as is the nature of GVCs) threatens the sustainability of Zimbabwe’s tobacco industry. Despite these issues it was argued that the tobacco value chain could assist Zimbabwe’s economy in diversifying away from simple tobacco production towards valueadding tobacco sectors, such as processing, by-product processing and cigarette manufacturing.
- Full Text:
- Date Issued: 2017
An analysis of the reporting on poverty and foreign aid in Sub-Saharan Africa before and during the current global economic crisis, in BBC online (Texts)
- Authors: Achu, Stella
- Date: 2009
- Subjects: Economic assistance -- Africa, Sub-Saharan , Poverty -- Africa, Sub-Saharan , Financial crises , Africa, Sub-Saharan -- Economic conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8371 , http://hdl.handle.net/10948/1257 , Economic assistance -- Africa, Sub-Saharan , Poverty -- Africa, Sub-Saharan , Financial crises , Africa, Sub-Saharan -- Economic conditions
- Description: Since 1929, the world economy has not encountered any financial crisis as severe as the case of the Great Depression, until 2007 when the fall of stock markets and the collapse of large financial institutions in the United States resulted in a worldwide recession. According to an IMF report, and as a result of the direct impact of the crisis, advanced economies such as those of the United States and Europe are suffering from a systemic banking crisis with economic output expected to contract by over 1 ¾ % in 2009. (Bourdin 2009:2) Although the crisis erupted in the United States, the effects quickly spread to countries worldwide. However, its effects are said to be more devastating for the poorest regions in the world including Sub-Saharan Africa. During the last few years, prior to the crisis, many Sub-Saharan African countries had enjoyed a growth rate of over 5%. This was partly as a result of sound economic policies and increased external support in the form of debt relief and higher inflows from economically powerful countries in the West. However, with the current financial crisis, wealthy nations have been forced to concentrate on sustaining their own economy. As a result, amongst changes like tighter immigration policies, skyrocketing oil prices and food prices, foreign aid is being withdrawn. (ibid 2009:3) According to foreign media reports, donor governments and the G8 are no longer as committed to aid as before the crisis. This research paper examines the evolution of aid to Africa in view of various contexts through a broad historical economic and political economy overview, and finally corroborates these observations with a discourse analysis of a sample of BBC online articles. The research project thus investigates in this last section, the BBC’s representation of poverty and aid in Sub-Saharan Africa before and during the current global economic crisis.
- Full Text:
- Date Issued: 2009
- Authors: Achu, Stella
- Date: 2009
- Subjects: Economic assistance -- Africa, Sub-Saharan , Poverty -- Africa, Sub-Saharan , Financial crises , Africa, Sub-Saharan -- Economic conditions
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8371 , http://hdl.handle.net/10948/1257 , Economic assistance -- Africa, Sub-Saharan , Poverty -- Africa, Sub-Saharan , Financial crises , Africa, Sub-Saharan -- Economic conditions
- Description: Since 1929, the world economy has not encountered any financial crisis as severe as the case of the Great Depression, until 2007 when the fall of stock markets and the collapse of large financial institutions in the United States resulted in a worldwide recession. According to an IMF report, and as a result of the direct impact of the crisis, advanced economies such as those of the United States and Europe are suffering from a systemic banking crisis with economic output expected to contract by over 1 ¾ % in 2009. (Bourdin 2009:2) Although the crisis erupted in the United States, the effects quickly spread to countries worldwide. However, its effects are said to be more devastating for the poorest regions in the world including Sub-Saharan Africa. During the last few years, prior to the crisis, many Sub-Saharan African countries had enjoyed a growth rate of over 5%. This was partly as a result of sound economic policies and increased external support in the form of debt relief and higher inflows from economically powerful countries in the West. However, with the current financial crisis, wealthy nations have been forced to concentrate on sustaining their own economy. As a result, amongst changes like tighter immigration policies, skyrocketing oil prices and food prices, foreign aid is being withdrawn. (ibid 2009:3) According to foreign media reports, donor governments and the G8 are no longer as committed to aid as before the crisis. This research paper examines the evolution of aid to Africa in view of various contexts through a broad historical economic and political economy overview, and finally corroborates these observations with a discourse analysis of a sample of BBC online articles. The research project thus investigates in this last section, the BBC’s representation of poverty and aid in Sub-Saharan Africa before and during the current global economic crisis.
- Full Text:
- Date Issued: 2009
An examination of how organisational policy and news professionalism are negotiated in a newsroom: a case study of Zimbabwe's Financial gazette
- Authors: Gandari, Jonathan
- Date: 2010
- Subjects: Financial gazette Journalism -- Zimbabwe Journalism -- Political aspects -- Zimbabwe Journalistic ethics Journalists -- Zimbabwe Newspapers -- Zimbabwe Mass media -- Political aspects -- Zimbabwe Mass media -- Law and legislation -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3430 , http://hdl.handle.net/10962/d1002884
- Description: The construction of journalistic professionalism in Zimbabwe has stirred debate among scholars. Critics have argued that professionalism has been compromised by the stifling media laws in Zimbabwe as well as the extra legal measures the state has enforced to control the press. Some have also argued that a new kind of journalism must be emerging in the Zimbabwean newsroom as journalism try to cope with the political and economic pressures bedeviling the country. Much of this criticism however, has not been based on close interrogation of professionalism from the perspective of the journalists in any particular newsroom. It is against this background that this study examines the constructions of professionalism at the Financial Gazette. In particular it explores the meaning of professionalism through interrogating the journalistic practices the journalists consider during the process of news production in the context of overwhelming state power. In undertaking this examination, the study draws primarily on qualitative research methods, particularly observation and multi-layered individual in-depth interviews. As the study demonstrates, the interrogation of professionalism from the perspective of newsroom practices uncovers the complex manner in which professionalism is negotiated in the Gazette’s newsroom located in a country undergoing transition in Democracy. The study establishes that when measured against normative canons of journalistic professionalism the Gazette is deviating from such tenets as public service and watchdog journalism. As the study indicates, perhaps unbeknown to the respondents, the ruling ZANU PF party hegemony is reproduced at the Gazette through choice of news values such as sovereignty and patriotism all euphemisms for ruling party‘s slogans.
- Full Text:
- Date Issued: 2010
- Authors: Gandari, Jonathan
- Date: 2010
- Subjects: Financial gazette Journalism -- Zimbabwe Journalism -- Political aspects -- Zimbabwe Journalistic ethics Journalists -- Zimbabwe Newspapers -- Zimbabwe Mass media -- Political aspects -- Zimbabwe Mass media -- Law and legislation -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3430 , http://hdl.handle.net/10962/d1002884
- Description: The construction of journalistic professionalism in Zimbabwe has stirred debate among scholars. Critics have argued that professionalism has been compromised by the stifling media laws in Zimbabwe as well as the extra legal measures the state has enforced to control the press. Some have also argued that a new kind of journalism must be emerging in the Zimbabwean newsroom as journalism try to cope with the political and economic pressures bedeviling the country. Much of this criticism however, has not been based on close interrogation of professionalism from the perspective of the journalists in any particular newsroom. It is against this background that this study examines the constructions of professionalism at the Financial Gazette. In particular it explores the meaning of professionalism through interrogating the journalistic practices the journalists consider during the process of news production in the context of overwhelming state power. In undertaking this examination, the study draws primarily on qualitative research methods, particularly observation and multi-layered individual in-depth interviews. As the study demonstrates, the interrogation of professionalism from the perspective of newsroom practices uncovers the complex manner in which professionalism is negotiated in the Gazette’s newsroom located in a country undergoing transition in Democracy. The study establishes that when measured against normative canons of journalistic professionalism the Gazette is deviating from such tenets as public service and watchdog journalism. As the study indicates, perhaps unbeknown to the respondents, the ruling ZANU PF party hegemony is reproduced at the Gazette through choice of news values such as sovereignty and patriotism all euphemisms for ruling party‘s slogans.
- Full Text:
- Date Issued: 2010
An investigation into causes of success and failure in small businesses within the Department of Social Development in the Eastern Cape
- Authors: Petrus, Henry George
- Date: 2009
- Subjects: South Africa -- Dept. of Social Development , South Africa -- Dept. of Trade and Industry , Small business -- South Africa -- Eastern Cape , Small business -- South Africa -- Eastern Cape -- Growth , Business enterprises -- Economic aspects -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape , Job creation -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:791 , http://hdl.handle.net/10962/d1003942
- Description: The failure rate of small business initiatives in South Africa is phenomenal, and much is needed to unravel the causes contributing to such failures. Yet small businesses are playing a vital part in our global economy and in particular in terms of job creation and poverty eradication. There are internal as well as external factors that play a significant role in determining the success of these small businesses. In South Africa much emphasis is placed by national, provincial and local governments on small and medium enterprises (SMEs) to drive wealth creation and black economic empowerment. Therefore, an investigation into the factors contributing to the success and failure of SMEs is of vital importance. The South African government’s poverty eradication strategy, which is driven by the Department of Trade and Industry (DTI), allocated funds for job creation programmes as a method to combat poverty and more importantly, to develop young entrepreneurs. Among the seven departments mandated by DTI was the Department of Social Development. Since the birth of the new democracy, this department has transformed from offering a traditional remedial method of service delivery to an integrated developmental approach. This approach included extensive community work, which includes job creation and economic empowerment through the establishment of small businesses. Given the availability of funding, the inability to spend fiscal budgets as per allocation as well as the charity element of receiving involved, it is important to explore whether factors contributing to the success of these SMEs are any different to the traditional business strategies. In this study, the researcher gave special consideration to the social capital element and its contribution in the context of community support as well as the ability of SMEs to become sustainable business ventures over time. The research study aims to highlight unique factors contributing to the success and failures of SMEs established by the Department of Social Development and in doing so hopes to manifest an improved understanding of the management of these SMEs. In chapter one, the researcher gives a brief description of the activities of the Department of Social Development and its mandate to establish SMEs for job creation. A brief explanation regarding the context of the problem that was investigated is also given. Chapter two provides a detailed theoretical overview of the study, focusing in particular on factors contributing to the success and failure of small businesses. In chapter three, the research design and the various instruments used are discussed. Here, emphasis is placed on procedural issues and ethical considerations. The validity and reliability of the research is strongly motivated. In chapter four the research results are discussed. Chapter five aims to discuss the findings of the research with reference to the theoretical overview outlined in chapter two. Lastly, chapter six makes recommendations to the various stakeholders who may benefit from this research. These recommendations are the most important objectives of the research and should add value with regards to the management of SMEs in future, with special reference to the Department of Social Development in the Eastern Cape.
- Full Text:
- Date Issued: 2009
- Authors: Petrus, Henry George
- Date: 2009
- Subjects: South Africa -- Dept. of Social Development , South Africa -- Dept. of Trade and Industry , Small business -- South Africa -- Eastern Cape , Small business -- South Africa -- Eastern Cape -- Growth , Business enterprises -- Economic aspects -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape , Job creation -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:791 , http://hdl.handle.net/10962/d1003942
- Description: The failure rate of small business initiatives in South Africa is phenomenal, and much is needed to unravel the causes contributing to such failures. Yet small businesses are playing a vital part in our global economy and in particular in terms of job creation and poverty eradication. There are internal as well as external factors that play a significant role in determining the success of these small businesses. In South Africa much emphasis is placed by national, provincial and local governments on small and medium enterprises (SMEs) to drive wealth creation and black economic empowerment. Therefore, an investigation into the factors contributing to the success and failure of SMEs is of vital importance. The South African government’s poverty eradication strategy, which is driven by the Department of Trade and Industry (DTI), allocated funds for job creation programmes as a method to combat poverty and more importantly, to develop young entrepreneurs. Among the seven departments mandated by DTI was the Department of Social Development. Since the birth of the new democracy, this department has transformed from offering a traditional remedial method of service delivery to an integrated developmental approach. This approach included extensive community work, which includes job creation and economic empowerment through the establishment of small businesses. Given the availability of funding, the inability to spend fiscal budgets as per allocation as well as the charity element of receiving involved, it is important to explore whether factors contributing to the success of these SMEs are any different to the traditional business strategies. In this study, the researcher gave special consideration to the social capital element and its contribution in the context of community support as well as the ability of SMEs to become sustainable business ventures over time. The research study aims to highlight unique factors contributing to the success and failures of SMEs established by the Department of Social Development and in doing so hopes to manifest an improved understanding of the management of these SMEs. In chapter one, the researcher gives a brief description of the activities of the Department of Social Development and its mandate to establish SMEs for job creation. A brief explanation regarding the context of the problem that was investigated is also given. Chapter two provides a detailed theoretical overview of the study, focusing in particular on factors contributing to the success and failure of small businesses. In chapter three, the research design and the various instruments used are discussed. Here, emphasis is placed on procedural issues and ethical considerations. The validity and reliability of the research is strongly motivated. In chapter four the research results are discussed. Chapter five aims to discuss the findings of the research with reference to the theoretical overview outlined in chapter two. Lastly, chapter six makes recommendations to the various stakeholders who may benefit from this research. These recommendations are the most important objectives of the research and should add value with regards to the management of SMEs in future, with special reference to the Department of Social Development in the Eastern Cape.
- Full Text:
- Date Issued: 2009
An investigation into how grade 9 Physical Science learners make meaning of the topic on acids and bases through exploring their prior everyday knowledge and experiiences: a case study
- Authors: Kambeyo, Linus
- Date: 2013
- Subjects: Science -- Study and teaching Science -- Study and teaching -- Namibia Prior learning
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1383 , http://hdl.handle.net/10962/d1001487
- Description: This study was conducted at the school where I teach which is a semi-rural secondary school (Grade 8-12) situated in Omuthiya Town in Oshikoto region, Namibia. The new curriculum that has been implemented in Namibia, has posed challenges in how best to put the curriculum into practice at this school. It was this challenge that triggered my interest in doing a research study with the aim of improving my practice. Essentially, the study sought to gain insight into whether integrating learners’ prior everyday knowledge and experiences of acids and bases in conjunction with practical activities using easily accessible materials enabled or constrained meaning-making of this topic. This study is located within an interpretive paradigm. Within this paradigm, a qualitative case study approach was adopted with my Grade 9 class. Data were gathered using document analysis, videotaped lessons and observations by a critical friend, stimulated recall discussions while watching the videotaped lessons as well as focus group interviews with the learners. An inductive analysis to discover patterns and themes was applied during the data analysis process. The themes were further turned into analytical statements. Data sets were also analysed in relation to the research questions posed by this study. The validation process was achieved by using a variety of data gathering techniques. I watched the videotaped lessons with a teacher who observed the lessons and transcripts of the interviews and a summary of discussions were given back to the respondents to verify their responses and check for any misinterpretations, a process known as member checking. I also translated what the learners said in Oshiwambo, their home language, into English. The findings from the study revealed that the use of learners’ prior everyday knowledge and experiences of acids and bases facilitated meaningful learning during teaching and learning. Furthermore, linking learning to learners’ everyday experiences enabled them to learn scientific concepts in a relaxed and non-threatening environment. However, linking learners’ prior knowledge and experiences to conventional science (textbook science) proved to be a challenge. My recommendations are that teachers need support in their endeavors to incorporate learners’ real life experiences into their teaching and learning repertoires. Another aspect of my study that deserves further research is the role that language plays in implementing the curriculum.
- Full Text:
- Date Issued: 2013
- Authors: Kambeyo, Linus
- Date: 2013
- Subjects: Science -- Study and teaching Science -- Study and teaching -- Namibia Prior learning
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1383 , http://hdl.handle.net/10962/d1001487
- Description: This study was conducted at the school where I teach which is a semi-rural secondary school (Grade 8-12) situated in Omuthiya Town in Oshikoto region, Namibia. The new curriculum that has been implemented in Namibia, has posed challenges in how best to put the curriculum into practice at this school. It was this challenge that triggered my interest in doing a research study with the aim of improving my practice. Essentially, the study sought to gain insight into whether integrating learners’ prior everyday knowledge and experiences of acids and bases in conjunction with practical activities using easily accessible materials enabled or constrained meaning-making of this topic. This study is located within an interpretive paradigm. Within this paradigm, a qualitative case study approach was adopted with my Grade 9 class. Data were gathered using document analysis, videotaped lessons and observations by a critical friend, stimulated recall discussions while watching the videotaped lessons as well as focus group interviews with the learners. An inductive analysis to discover patterns and themes was applied during the data analysis process. The themes were further turned into analytical statements. Data sets were also analysed in relation to the research questions posed by this study. The validation process was achieved by using a variety of data gathering techniques. I watched the videotaped lessons with a teacher who observed the lessons and transcripts of the interviews and a summary of discussions were given back to the respondents to verify their responses and check for any misinterpretations, a process known as member checking. I also translated what the learners said in Oshiwambo, their home language, into English. The findings from the study revealed that the use of learners’ prior everyday knowledge and experiences of acids and bases facilitated meaningful learning during teaching and learning. Furthermore, linking learning to learners’ everyday experiences enabled them to learn scientific concepts in a relaxed and non-threatening environment. However, linking learners’ prior knowledge and experiences to conventional science (textbook science) proved to be a challenge. My recommendations are that teachers need support in their endeavors to incorporate learners’ real life experiences into their teaching and learning repertoires. Another aspect of my study that deserves further research is the role that language plays in implementing the curriculum.
- Full Text:
- Date Issued: 2013
An investigation into international transfer pricing guidelines and the anomalies arising from business restructurings by multi-national enterprises
- Authors: Stelloh, Marcus Matthias
- Date: 2011
- Language: English
- Type: text , Thesis , Masters , MCom
- Identifier: vital:879 , http://hdl.handle.net/10962/d1001633
- Description: The number of multinational enterprises has increased substantially. In part due to the integration of national economies (the European Union), improvements in communication and technology and the opportunity to reduce costs as a result of globalisation. Transfer pricing and especially business restructuring within multinationals is a fairly new concept.Professional legal and audit firms have different views on how to approach business restructurings. This research analyses important transfer pricing aspects and the anomalies that arise through business restructurings. The research method used in this research paper is primarily qualitative, comprising the analysis of various documentary sources of data. Relevant South African and international case law, tax legislation, the OECD Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations, the Transfer Pricing Aspects of Business Restructurings Discussion Draft and other reports were consulted and analysed. Further the views of recognised legal and tax experts that have been published in technical journals and text books were also considered and examined. A hypothetical example of a business restructuring transaction was constructed in order to illustrate practical issues and different approaches to solving them. The research has argued that the arm’s length principle, which forms the bases of transfer pricing regulation, is not an exact science but theoretically it is the most suitable measure.It may not be able to incorporate all variables, such as the cost savings through synergies of multinational enterprises, but it promotes international trade and investment by ensuring that transactions are based on fair prices. Business restructurings create anomalies in applying the arm’s length principle but these anomalies can be dealt with within the regulatory structure. The business restructuring approach recommended is realistic and pragmatic, but more clarity may be needed in certain circumstances. The research has also discussed the avoidance of transfer pricing audits, including having appropriate transfer pricing policies and documentation.
- Full Text:
- Date Issued: 2011
- Authors: Stelloh, Marcus Matthias
- Date: 2011
- Language: English
- Type: text , Thesis , Masters , MCom
- Identifier: vital:879 , http://hdl.handle.net/10962/d1001633
- Description: The number of multinational enterprises has increased substantially. In part due to the integration of national economies (the European Union), improvements in communication and technology and the opportunity to reduce costs as a result of globalisation. Transfer pricing and especially business restructuring within multinationals is a fairly new concept.Professional legal and audit firms have different views on how to approach business restructurings. This research analyses important transfer pricing aspects and the anomalies that arise through business restructurings. The research method used in this research paper is primarily qualitative, comprising the analysis of various documentary sources of data. Relevant South African and international case law, tax legislation, the OECD Transfer Pricing Guidelines for Multinational Enterprises and Tax Administrations, the Transfer Pricing Aspects of Business Restructurings Discussion Draft and other reports were consulted and analysed. Further the views of recognised legal and tax experts that have been published in technical journals and text books were also considered and examined. A hypothetical example of a business restructuring transaction was constructed in order to illustrate practical issues and different approaches to solving them. The research has argued that the arm’s length principle, which forms the bases of transfer pricing regulation, is not an exact science but theoretically it is the most suitable measure.It may not be able to incorporate all variables, such as the cost savings through synergies of multinational enterprises, but it promotes international trade and investment by ensuring that transactions are based on fair prices. Business restructurings create anomalies in applying the arm’s length principle but these anomalies can be dealt with within the regulatory structure. The business restructuring approach recommended is realistic and pragmatic, but more clarity may be needed in certain circumstances. The research has also discussed the avoidance of transfer pricing audits, including having appropriate transfer pricing policies and documentation.
- Full Text:
- Date Issued: 2011
An investigation into the principals' leadership roles in selected schools in the Ohangwena Region in Namibia: case study
- Authors: Shitana, Silas Shituleipo
- Date: 2012
- Subjects: School management and organization -- Namibia -- Ohangwena School principals -- Namibia -- Ohangwena Educational leadership -- Namibia -- Ohangwena Educational change -- Namibia -- Ohangwena Management -- Employee participation -- Namibia -- Ohangwena
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1614 , http://hdl.handle.net/10962/d1003496
- Description: School leadership in Namibia over past centuries was characterized by ‘top down’ administration and typically proceeded without participation of those involved other than the principals who were the sole decision makers. The notion of school leadership through teamwork (team leadership) in Namibia was formalized after the advent of democracy in 1990 and the subsequent reorganization of the education system. The notion of team leadership is embedded in theories that stress participation, teamwork and distributed leadership. It is against this background that this study sought to investigate the current understandings of school leadership and application of team leadership among principals in selected schools in the Ohangwena region in Namibia. The study is an interpretive case study of two secondary schools in the above‐mentioned region in Namibia. The research utilized three quantitative data gathering techniques, namely semi‐structured interviews, observation and document analysis. The research participants were two principals, two teachers and two school board members from each research school. The main findings of this study revealed that the notion of participation of all stakeholders in education is seen as a fundamental aspect of the current leadership thinking. However, the respondents’ vision of leadership is limited and quite traditional in many ways. There is emphasis on the need to control, monitor, and delegate rather than team leadership. Furthermore, where consultation is mentioned it seems the respondents think of the passing down of information – a cascade model ‐ as consultation, a view that is narrow and inaccurate in terms of contemporary leadership theories. While there was an appreciation of the benefits derived from team leadership, challenges facing such leadership pervaded responses. These included lack of understanding of government policies such as ETSIP and NSPIs, resistance to change and implementation of policy. The study recommends that leadership and management programs and teacher leadership development programs be established in Namibia. Finally, the study recommends further research to include Learner Representative Council and Heads of Department. These stakeholders in education may provide new insights into the current school leadership thinking.
- Full Text:
- Date Issued: 2012
- Authors: Shitana, Silas Shituleipo
- Date: 2012
- Subjects: School management and organization -- Namibia -- Ohangwena School principals -- Namibia -- Ohangwena Educational leadership -- Namibia -- Ohangwena Educational change -- Namibia -- Ohangwena Management -- Employee participation -- Namibia -- Ohangwena
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1614 , http://hdl.handle.net/10962/d1003496
- Description: School leadership in Namibia over past centuries was characterized by ‘top down’ administration and typically proceeded without participation of those involved other than the principals who were the sole decision makers. The notion of school leadership through teamwork (team leadership) in Namibia was formalized after the advent of democracy in 1990 and the subsequent reorganization of the education system. The notion of team leadership is embedded in theories that stress participation, teamwork and distributed leadership. It is against this background that this study sought to investigate the current understandings of school leadership and application of team leadership among principals in selected schools in the Ohangwena region in Namibia. The study is an interpretive case study of two secondary schools in the above‐mentioned region in Namibia. The research utilized three quantitative data gathering techniques, namely semi‐structured interviews, observation and document analysis. The research participants were two principals, two teachers and two school board members from each research school. The main findings of this study revealed that the notion of participation of all stakeholders in education is seen as a fundamental aspect of the current leadership thinking. However, the respondents’ vision of leadership is limited and quite traditional in many ways. There is emphasis on the need to control, monitor, and delegate rather than team leadership. Furthermore, where consultation is mentioned it seems the respondents think of the passing down of information – a cascade model ‐ as consultation, a view that is narrow and inaccurate in terms of contemporary leadership theories. While there was an appreciation of the benefits derived from team leadership, challenges facing such leadership pervaded responses. These included lack of understanding of government policies such as ETSIP and NSPIs, resistance to change and implementation of policy. The study recommends that leadership and management programs and teacher leadership development programs be established in Namibia. Finally, the study recommends further research to include Learner Representative Council and Heads of Department. These stakeholders in education may provide new insights into the current school leadership thinking.
- Full Text:
- Date Issued: 2012
Art marketing and management
- Authors: Anderson, Larna
- Date: 1995
- Subjects: Art -- Marketing Art portfolios Art -- Finance Art -- Economic aspects Community arts projects
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2392 , http://hdl.handle.net/10962/d1002188
- Description: Formal art education equips students with skills to produce artworks. A formal art education may increase the opportunity for employment, however, art-related employment is very limited. Art graduates would be better equipped to market and manage art establishments or their own careers if art education were to be supplemented with basic business skills. Artists who wish to earn unsupplemented incomes from their art should undertake to acquire business acumen. This includes being presentable to the market place in attitude and appearance. It also includes aptitude in art, marketing and management. Role models and non-models of success and failure in business should also be observed. Art graduates should adopt applicable tried and tested business methods. Good marketing is a mix of business activities which identifies and creates consumer needs and wants. Marketing activities involve research, planning, packaging, pricing, promoting and distributing products and services to the public to create exchanges that satisfy individual and organisational objectives. Art products include artworks, frames, art books and art materials. Art-related services include the undertaking of commissions, consulting, teaching, free parking, convenient shopping hours, acceptance of mail or telephone orders, exhibitions, ease of contact, approval facilities, wrapping, delivery, installations (picture hanging), quotations, discounts, credit facilities, guarantees, trade-ins, adjustments and restorations. Good management is a mix of business activities which enables a venture to meet the challenges of supply and demand. There is a blueprint for management competence. The three dimensions of organisational competence are collaboration, commitment and creativity. Self-marketing and management is an expression of an artist's most creative being. It is that which can ensure and sustain recognition and income. Artists, like other competent organisations and entrepreneurs from the private sector, should operate with efficient manufacturing, marketing, management and finance departments. They are also equally important and therefore demand equal attention. Artistic skill together with business acumen should equip the artist to successfully compete in the market place. There are no short-cuts to becoming an artist but there are short-cuts to becoming a known and financially stable artist. Understanding marketing and management could mean the difference between waiting in poverty and frustration for a "lucky break" (which may only happen after an artists's death) and taking control. Success should be perpetuated through continuous effort.
- Full Text:
- Date Issued: 1995
- Authors: Anderson, Larna
- Date: 1995
- Subjects: Art -- Marketing Art portfolios Art -- Finance Art -- Economic aspects Community arts projects
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2392 , http://hdl.handle.net/10962/d1002188
- Description: Formal art education equips students with skills to produce artworks. A formal art education may increase the opportunity for employment, however, art-related employment is very limited. Art graduates would be better equipped to market and manage art establishments or their own careers if art education were to be supplemented with basic business skills. Artists who wish to earn unsupplemented incomes from their art should undertake to acquire business acumen. This includes being presentable to the market place in attitude and appearance. It also includes aptitude in art, marketing and management. Role models and non-models of success and failure in business should also be observed. Art graduates should adopt applicable tried and tested business methods. Good marketing is a mix of business activities which identifies and creates consumer needs and wants. Marketing activities involve research, planning, packaging, pricing, promoting and distributing products and services to the public to create exchanges that satisfy individual and organisational objectives. Art products include artworks, frames, art books and art materials. Art-related services include the undertaking of commissions, consulting, teaching, free parking, convenient shopping hours, acceptance of mail or telephone orders, exhibitions, ease of contact, approval facilities, wrapping, delivery, installations (picture hanging), quotations, discounts, credit facilities, guarantees, trade-ins, adjustments and restorations. Good management is a mix of business activities which enables a venture to meet the challenges of supply and demand. There is a blueprint for management competence. The three dimensions of organisational competence are collaboration, commitment and creativity. Self-marketing and management is an expression of an artist's most creative being. It is that which can ensure and sustain recognition and income. Artists, like other competent organisations and entrepreneurs from the private sector, should operate with efficient manufacturing, marketing, management and finance departments. They are also equally important and therefore demand equal attention. Artistic skill together with business acumen should equip the artist to successfully compete in the market place. There are no short-cuts to becoming an artist but there are short-cuts to becoming a known and financially stable artist. Understanding marketing and management could mean the difference between waiting in poverty and frustration for a "lucky break" (which may only happen after an artists's death) and taking control. Success should be perpetuated through continuous effort.
- Full Text:
- Date Issued: 1995
Asleep in a glass coffin: fairy tales as illuminating attitudes to women in the novels of Charles Dickens
- Authors: Daly, Robyn Anne
- Date: 1996
- Subjects: Dickens, Charles, 1812-1870 -- Criticism and interpretation Dickens, Charles, 1812-1870 -- Folklore Dickens, Charles, 1812-1870 -- Characters Women Dickens, Charles, 1812-1870 -- Symbolism Fairy tales -- History and criticism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2227 , http://hdl.handle.net/10962/d1002270
- Description: The field of research of this thesis covers three main areas: the novels of Charles Dickens; fairy tales and storytelling; and notions of women as reflected in feminist literary theory. A reading of selected novels by Dickens provides the primary source. That he copiously drew on fairy tales has been explored in such notable works as Harry Stone's, but the thesis concentrates on Dickens 's propensity in his creation of female protagonists to give them a voice which is vivified through fairy tale. The analysis of fairy story through narrative theory and feminist literary theory functions as the basis of an exploration of the role female narrative voices play in a reading of the novels which reveals a more sympathetic vision of the feminine than has been observed hitherto. The context of this study is Victorian attitudes to women and that modem criticism has not sufficiently acknowledged Dickens's insight into of the condition of women; much of this is discovered through an examination of his use of fairy tale wherein the woman is bearer of imaginative and emotional capacities magically bestowed. The research aims to counter the view of Dickens's novels as being sexist, through the iIluminatory characteristics of fairy tale. Dickens activates his women characters by means of their often being tellers of tales replete with fairy tale imagery, and their tales are almost always seminal to the novelist's moral purpose.
- Full Text:
- Date Issued: 1996
- Authors: Daly, Robyn Anne
- Date: 1996
- Subjects: Dickens, Charles, 1812-1870 -- Criticism and interpretation Dickens, Charles, 1812-1870 -- Folklore Dickens, Charles, 1812-1870 -- Characters Women Dickens, Charles, 1812-1870 -- Symbolism Fairy tales -- History and criticism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2227 , http://hdl.handle.net/10962/d1002270
- Description: The field of research of this thesis covers three main areas: the novels of Charles Dickens; fairy tales and storytelling; and notions of women as reflected in feminist literary theory. A reading of selected novels by Dickens provides the primary source. That he copiously drew on fairy tales has been explored in such notable works as Harry Stone's, but the thesis concentrates on Dickens 's propensity in his creation of female protagonists to give them a voice which is vivified through fairy tale. The analysis of fairy story through narrative theory and feminist literary theory functions as the basis of an exploration of the role female narrative voices play in a reading of the novels which reveals a more sympathetic vision of the feminine than has been observed hitherto. The context of this study is Victorian attitudes to women and that modem criticism has not sufficiently acknowledged Dickens's insight into of the condition of women; much of this is discovered through an examination of his use of fairy tale wherein the woman is bearer of imaginative and emotional capacities magically bestowed. The research aims to counter the view of Dickens's novels as being sexist, through the iIluminatory characteristics of fairy tale. Dickens activates his women characters by means of their often being tellers of tales replete with fairy tale imagery, and their tales are almost always seminal to the novelist's moral purpose.
- Full Text:
- Date Issued: 1996
Aspects of the biology of Caffrogobius Caffer (Günter) (Pisces : Teleostei : Gobiidae) in the Eastern Cape
- Authors: Butler, Graham Stuart
- Date: 1981
- Subjects: Osteichthyes -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5345 , http://hdl.handle.net/10962/d1006849
- Description: Several strategies used by the gobiid fish Caffrogobius caffer enabling it to colonise the harsh intertidal environment in the eastern Cape were studied. Q. caffer is opportunistic in its use of available food resources and feeds throughout the day with a slight tendency towards crepuscular peaks of feeding activity. The system of space utilisation used by C. caffer is so organised that all individuals of the population have access to patchily distributed food resources. Current velocities occurring over high tide limit the movements of Qo caffer and interpool movements occur only during the initial stages of a rising tide and in the final stages of an ebbing tide when the current velocities are below the tolerance limit of Q. caffer. The epifauna associated with the alga Ulva rigida, which forms an important constituent of the diet of the intermediate size classes of Q. caffer, was examined and it appears that this epifauna is an important source of food to Q. caffer. This report presents the results of the first detailed study of the biology of an intertidal fish in southern Africa.
- Full Text:
- Date Issued: 1981
- Authors: Butler, Graham Stuart
- Date: 1981
- Subjects: Osteichthyes -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5345 , http://hdl.handle.net/10962/d1006849
- Description: Several strategies used by the gobiid fish Caffrogobius caffer enabling it to colonise the harsh intertidal environment in the eastern Cape were studied. Q. caffer is opportunistic in its use of available food resources and feeds throughout the day with a slight tendency towards crepuscular peaks of feeding activity. The system of space utilisation used by C. caffer is so organised that all individuals of the population have access to patchily distributed food resources. Current velocities occurring over high tide limit the movements of Qo caffer and interpool movements occur only during the initial stages of a rising tide and in the final stages of an ebbing tide when the current velocities are below the tolerance limit of Q. caffer. The epifauna associated with the alga Ulva rigida, which forms an important constituent of the diet of the intermediate size classes of Q. caffer, was examined and it appears that this epifauna is an important source of food to Q. caffer. This report presents the results of the first detailed study of the biology of an intertidal fish in southern Africa.
- Full Text:
- Date Issued: 1981
Centrality of religiosity as a moderator of the relationship between workplace spirituality and organisational citizenship behaviour among police officers in the Raymond Mhlaba Local Municipality
- Authors: Noko, Sibongile
- Date: 2020
- Subjects: Religion in the workplace Employees -- Religious life Organizational change
- Language: English
- Type: Thesis , Masters , MCom (Industrial Psychology)
- Identifier: http://hdl.handle.net/10353/12491 , vital:39268
- Description: The significant positive relationships between workplace spirituality and organisational citizenship behaviour, as well as between centrality of religiosity and oganisational citizenship behaviour among police officers, confirm the relevance of social exchange theory and affective events theory to police officers’ behaviour. This study confirms the applicability of Social Exchange Theory (SET) and Affective Events Theory (AET). The current study utilized the SET and AET to examine the correlation between workplace spirituality and centrality of religiosity as well as organisational citizenship behaviour among Police officers in the Raymond Mlaba Local Municipality of the Eastern Cape. There is limited previous research concerning the influence of workplace spirituality and centrality of religiosity on organisational citizenship behaviour among police officers in the South African Police Services (SAPS) Department. A quantitative cross-sectional survey was conducted. The sample (N= 100) consist of Police officers from Raymond Mhlaba Local Municipality Police stations. Data were collected through the questionnaire method and SPSS was used for data analysis. A correlational analysis coupled with a simple linear regression analysis was utilised to determine whether there existed any significant relationship with the study’s theoretical attributes. The results of the simple linear regression indicated that workplace spirituality is positively correlated with organisational citizenship behaviour; which is similar to the centrality of religiosity. The results from multiple linear regression showed that the centrality of religiosity does moderate the correlation between workplace spirituality and organisational citizenship behaviour. The results of Multiple linear regression also showed that Workplace spirituality and centrality of religiosity both account for an extensively higher proportion vi of variance in organisational citizenship behaviour than in any of the two variables. This study augments existing knowledge on workplace spirituality, the centrality of religiosity and organisational citizenship behaviour among Police officers in the Raymond Mhlaba Local Municipality, which has largely been ignored by previous researchers, validates certain aspects of the SET and AET. The Station Commanders or Captains should give consideration on how to make the workplace more conducive to the centrality of religiosity and workplace spirituality; so that the Police officers can increase their organisational citizenship behaviour. Strategies need to be implemented to improve managerial and coworker support for Police officers through socialization and team building activities. However, to overcome feelings of occupational stress and their effects on well-being, employers should provide adequate information on any changes in the police service that may entail excessive work demand and dangerous working conditions.
- Full Text:
- Date Issued: 2020
- Authors: Noko, Sibongile
- Date: 2020
- Subjects: Religion in the workplace Employees -- Religious life Organizational change
- Language: English
- Type: Thesis , Masters , MCom (Industrial Psychology)
- Identifier: http://hdl.handle.net/10353/12491 , vital:39268
- Description: The significant positive relationships between workplace spirituality and organisational citizenship behaviour, as well as between centrality of religiosity and oganisational citizenship behaviour among police officers, confirm the relevance of social exchange theory and affective events theory to police officers’ behaviour. This study confirms the applicability of Social Exchange Theory (SET) and Affective Events Theory (AET). The current study utilized the SET and AET to examine the correlation between workplace spirituality and centrality of religiosity as well as organisational citizenship behaviour among Police officers in the Raymond Mlaba Local Municipality of the Eastern Cape. There is limited previous research concerning the influence of workplace spirituality and centrality of religiosity on organisational citizenship behaviour among police officers in the South African Police Services (SAPS) Department. A quantitative cross-sectional survey was conducted. The sample (N= 100) consist of Police officers from Raymond Mhlaba Local Municipality Police stations. Data were collected through the questionnaire method and SPSS was used for data analysis. A correlational analysis coupled with a simple linear regression analysis was utilised to determine whether there existed any significant relationship with the study’s theoretical attributes. The results of the simple linear regression indicated that workplace spirituality is positively correlated with organisational citizenship behaviour; which is similar to the centrality of religiosity. The results from multiple linear regression showed that the centrality of religiosity does moderate the correlation between workplace spirituality and organisational citizenship behaviour. The results of Multiple linear regression also showed that Workplace spirituality and centrality of religiosity both account for an extensively higher proportion vi of variance in organisational citizenship behaviour than in any of the two variables. This study augments existing knowledge on workplace spirituality, the centrality of religiosity and organisational citizenship behaviour among Police officers in the Raymond Mhlaba Local Municipality, which has largely been ignored by previous researchers, validates certain aspects of the SET and AET. The Station Commanders or Captains should give consideration on how to make the workplace more conducive to the centrality of religiosity and workplace spirituality; so that the Police officers can increase their organisational citizenship behaviour. Strategies need to be implemented to improve managerial and coworker support for Police officers through socialization and team building activities. However, to overcome feelings of occupational stress and their effects on well-being, employers should provide adequate information on any changes in the police service that may entail excessive work demand and dangerous working conditions.
- Full Text:
- Date Issued: 2020
Cosmological structure formation using spectral methods
- Authors: Funcke, Michelle
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/2969 , vital:20348
- Description: Numerical simulations are becoming an increasingly important tool for understanding the growth and development of structure in the universe. Common practice is to discretize the space-time using physical variables. The discreteness is embodied by considering the dynamical variables as fields on a fixed spatial and time resolution, or by constructing the matter fields by a large number of particles which interact gravitationally (N-body methods). Recognizing that the physical quantities of interest are related to the spectrum of perturbations, we propose an alternate discretization in the frequency domain, using standard spectral methods. This approach is further aided by periodic boundary conditions which allows a straightforward decomposition of variables in a Fourier basis. Fixed resources require a high-frequency cut-off which lead to aliasing effects in non-linear equations, such as the ones considered here. This thesis describes the implementation of a 3D cosmological model based on Newtonian hydrodynamic equations in an expanding background. Initial data is constructed as a spectrum of perturbations, and evolved in the frequency domain using a pseudo-spectral evolution scheme and an explicit Runge-Kutta time integrator. The code is found to converge for both linear and non-linear evolutions, and the convergence rate is determined. The correct growth rates expected from analytical calculations are recovered in the linear case. In the non-linear model, we observe close correspondence with linear growth and are able to monitor the growth on features associated with the non-linearity. High-frequency aliasing effects were evident in the non-linear evolutions, leading to a study of two potential resolutions to this problem: a boxcar filter which adheres to“Orszag’s two thirds rule” and an exponential window function, the exponential filter suggested by Hou and Li [1], and a shifted version of the exponential filter suggested, which has the potential to alleviate high frequency- ripples resulting from the Gibbs’ phenomenon. We found that the filters were somewhat successful at reducing aliasing effects but that the Gibbs’ phenomenon could not be entirely removed by the choice of filters.
- Full Text:
- Date Issued: 2016
- Authors: Funcke, Michelle
- Date: 2016
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/2969 , vital:20348
- Description: Numerical simulations are becoming an increasingly important tool for understanding the growth and development of structure in the universe. Common practice is to discretize the space-time using physical variables. The discreteness is embodied by considering the dynamical variables as fields on a fixed spatial and time resolution, or by constructing the matter fields by a large number of particles which interact gravitationally (N-body methods). Recognizing that the physical quantities of interest are related to the spectrum of perturbations, we propose an alternate discretization in the frequency domain, using standard spectral methods. This approach is further aided by periodic boundary conditions which allows a straightforward decomposition of variables in a Fourier basis. Fixed resources require a high-frequency cut-off which lead to aliasing effects in non-linear equations, such as the ones considered here. This thesis describes the implementation of a 3D cosmological model based on Newtonian hydrodynamic equations in an expanding background. Initial data is constructed as a spectrum of perturbations, and evolved in the frequency domain using a pseudo-spectral evolution scheme and an explicit Runge-Kutta time integrator. The code is found to converge for both linear and non-linear evolutions, and the convergence rate is determined. The correct growth rates expected from analytical calculations are recovered in the linear case. In the non-linear model, we observe close correspondence with linear growth and are able to monitor the growth on features associated with the non-linearity. High-frequency aliasing effects were evident in the non-linear evolutions, leading to a study of two potential resolutions to this problem: a boxcar filter which adheres to“Orszag’s two thirds rule” and an exponential window function, the exponential filter suggested by Hou and Li [1], and a shifted version of the exponential filter suggested, which has the potential to alleviate high frequency- ripples resulting from the Gibbs’ phenomenon. We found that the filters were somewhat successful at reducing aliasing effects but that the Gibbs’ phenomenon could not be entirely removed by the choice of filters.
- Full Text:
- Date Issued: 2016
Creating a new declaration of rights : a critical reconstruction of earth jurisprudence's global legislative framework
- Authors: Lenferna, Georges Alexandre
- Date: 2013
- Subjects: Universal Declaration , Rights , Earth , Environment , Ethics , Environmental law, International -- Research , Environmental law, International -- Philosophy , Environmental ethics -- Research , Nature conservation -- Law and legislation -- Research , Jurisprudence -- Research , Law -- Philosophy
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2704 , http://hdl.handle.net/10962/d1001979
- Description: This thesis aims to critique the Universal Declaration of the Rights of Mother Earth and its underlying moral justification in order to provide a stronger and improved version of both. In Chapter 1 I explore what sort of moral justification is necessary to establish the Universal Declaration on firm grounds and explore its relation to environmental ethics and rights discourse. I argue that a non-anthropocentric perspective is necessary to justify the Universal Declaration’s rights. In Chapter 2 I explore the underlying justification of the Universal Declaration as discovered in the works of Cormac Cullinan and Father Thomas Berry. I argue that their ethical framework is indeterminate, has many ambiguities and uncertainties, and, among other problems, it does not provide a clear action-guiding framework. In Chapter 3 I develop an alternative justification for the Universal Declaration. I argue against many predominant moral theories, that in light of our best scientific and moral understanding we should expand the realm of moral concern to include all living beings, a moral theory I call Life’s Imperative. In Chapter 4 I illustrate that Life’s Imperative is a much stronger, more coherent justification for the Universal Declaration, one that coheres with both our best understanding of the natural world and our relation to it, and to an environmental ethic reflective of that relationship. Unfortunately many of the weaknesses in the current implicit justification of the Universal Declaration have also led to it enshrining rights that are themselves problematic. In order to address these issues, I revise its rights to accord with the stronger justification that I established in Chapter 3. The end result of doing so is a revised version of the Universal Declaration
- Full Text:
- Date Issued: 2013
- Authors: Lenferna, Georges Alexandre
- Date: 2013
- Subjects: Universal Declaration , Rights , Earth , Environment , Ethics , Environmental law, International -- Research , Environmental law, International -- Philosophy , Environmental ethics -- Research , Nature conservation -- Law and legislation -- Research , Jurisprudence -- Research , Law -- Philosophy
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2704 , http://hdl.handle.net/10962/d1001979
- Description: This thesis aims to critique the Universal Declaration of the Rights of Mother Earth and its underlying moral justification in order to provide a stronger and improved version of both. In Chapter 1 I explore what sort of moral justification is necessary to establish the Universal Declaration on firm grounds and explore its relation to environmental ethics and rights discourse. I argue that a non-anthropocentric perspective is necessary to justify the Universal Declaration’s rights. In Chapter 2 I explore the underlying justification of the Universal Declaration as discovered in the works of Cormac Cullinan and Father Thomas Berry. I argue that their ethical framework is indeterminate, has many ambiguities and uncertainties, and, among other problems, it does not provide a clear action-guiding framework. In Chapter 3 I develop an alternative justification for the Universal Declaration. I argue against many predominant moral theories, that in light of our best scientific and moral understanding we should expand the realm of moral concern to include all living beings, a moral theory I call Life’s Imperative. In Chapter 4 I illustrate that Life’s Imperative is a much stronger, more coherent justification for the Universal Declaration, one that coheres with both our best understanding of the natural world and our relation to it, and to an environmental ethic reflective of that relationship. Unfortunately many of the weaknesses in the current implicit justification of the Universal Declaration have also led to it enshrining rights that are themselves problematic. In order to address these issues, I revise its rights to accord with the stronger justification that I established in Chapter 3. The end result of doing so is a revised version of the Universal Declaration
- Full Text:
- Date Issued: 2013
Crop rotation and crop residue management effects under no till on the soil quality of two ecotopes in the Eastern Cape, South Africa
- Authors: Isaac, Gura
- Date: 2016
- Subjects: Crop rotation Crops and soils Soil fertility
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/2934 , vital:28144
- Description: The degradation of soil quality due to undesirable farming practices has reached alarming scales in the Eastern Cape and this has had negative repercussions on soil productivity and the environment in general. There is growing evidence that conservation agriculture (CA) practices involving minimal mechanical disturbance, maintaining permanent surface cover and embracing diverse crop rotations increase soil organic carbon (SOC) and therefore has potential to mitigate soil quality deterioration. A study was carried out at two sites located in two ecotopes to investigate the effects of crop residue retention and crop rotations in a no till system on overall soil quality using the Soil Management Assessment Framework (SMAF) as the soil quality assessment tool. The CA study trials were laid out in 2012 at two different locations, one at the Phandulwazi Agricultural High school within the Phandulwazi Jozini ecotope and the other one at University of Fort Hare Research Farm within the Alice Jozini ecotope. The experiment was laid out as a split-split plot arrangement in a randomized complete block design with three replicates. Tillage treatments were applied on the main plots while crop rotation treatments were applied as subplots. Crop residue retention treatments were applied as sub-sub plots. The rotational treatments were maize-fallow-maize (MFM), maize-fallow-soybean (MFS), maize-wheat-maize (MWM) and maize-wheat-soybean (MWS). The initial assessment of the overall soil quality of the two ecotopes using the SMAF soil quality index (SQI) revealed that the soils at the Alice site were functioning at 80% while the soils at the Phandulwazi site were functioning at 79 percent of their optimum capacity. The slight difference in the soil quality of the two ecotopes could be attributed to their different soil organic C contents where the Alice Jozini ecotope had significantly higher soil organic C contents than the Phandulwazi Jozini ecotope. After 3 years of continuous treatment application, crop residue retention significantly improved most of the measured soil quality parameters. Generally across the sites, more soil organic C, microbial biomass C (MBC), ß-glucosidase (BG) activity, mineral N, extractable P and K, Cu, Zn, Mn, Fe, and macro-aggregates were recorded in treatments where crop residues were retained. Crop rotations alone did not have a significant impact on most of the measured soil quality indicators. The crop rotations influenced significantly the availability of mineral N across the two sites, highlighting the importance of using a legume in rotations on available N for the subsequent crops. Most of the measured soil attributes were not significantly influenced after 3 years of continuously applying combined treatment of CA components. Mineral N (NO3 + NH4), K, Zn and Fe were significantly impacted on by the interactions of CA components at the Phandulwazi site, while N, Cu, Zn and Mn were significantly increased at the Alice site. Low response of SOC to combined CA treatments in the short-term prompted the need to examine treatment effects on individual soil carbon fractions. The interaction of crop rotation and residue management techniques were significant on the fine particulate organic matter – C fractions and microbially respired C. These soil C fractions were more sensitive to short-term treatments of combined CA components than SOC and MBC, therefore they can be used as short-term indicators of CA effects on SOM. Soil organic carbon, MBC, extractable P and K, soil pH, EC, b, AGS (aggregate stability) and BG activity were measured and the Soil Management Assessment Framework (SMAF) used to calculate soil quality index (SQI) values for each treatment. The combination of the crop rotations with crop residue retention showed the potential to significantly improve SQI values in the long term. The highest soil quality improvement at both sites was achieved by the maize-wheat-soybean (MWS) rotation with crop residue retention.
- Full Text:
- Date Issued: 2016
- Authors: Isaac, Gura
- Date: 2016
- Subjects: Crop rotation Crops and soils Soil fertility
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/2934 , vital:28144
- Description: The degradation of soil quality due to undesirable farming practices has reached alarming scales in the Eastern Cape and this has had negative repercussions on soil productivity and the environment in general. There is growing evidence that conservation agriculture (CA) practices involving minimal mechanical disturbance, maintaining permanent surface cover and embracing diverse crop rotations increase soil organic carbon (SOC) and therefore has potential to mitigate soil quality deterioration. A study was carried out at two sites located in two ecotopes to investigate the effects of crop residue retention and crop rotations in a no till system on overall soil quality using the Soil Management Assessment Framework (SMAF) as the soil quality assessment tool. The CA study trials were laid out in 2012 at two different locations, one at the Phandulwazi Agricultural High school within the Phandulwazi Jozini ecotope and the other one at University of Fort Hare Research Farm within the Alice Jozini ecotope. The experiment was laid out as a split-split plot arrangement in a randomized complete block design with three replicates. Tillage treatments were applied on the main plots while crop rotation treatments were applied as subplots. Crop residue retention treatments were applied as sub-sub plots. The rotational treatments were maize-fallow-maize (MFM), maize-fallow-soybean (MFS), maize-wheat-maize (MWM) and maize-wheat-soybean (MWS). The initial assessment of the overall soil quality of the two ecotopes using the SMAF soil quality index (SQI) revealed that the soils at the Alice site were functioning at 80% while the soils at the Phandulwazi site were functioning at 79 percent of their optimum capacity. The slight difference in the soil quality of the two ecotopes could be attributed to their different soil organic C contents where the Alice Jozini ecotope had significantly higher soil organic C contents than the Phandulwazi Jozini ecotope. After 3 years of continuous treatment application, crop residue retention significantly improved most of the measured soil quality parameters. Generally across the sites, more soil organic C, microbial biomass C (MBC), ß-glucosidase (BG) activity, mineral N, extractable P and K, Cu, Zn, Mn, Fe, and macro-aggregates were recorded in treatments where crop residues were retained. Crop rotations alone did not have a significant impact on most of the measured soil quality indicators. The crop rotations influenced significantly the availability of mineral N across the two sites, highlighting the importance of using a legume in rotations on available N for the subsequent crops. Most of the measured soil attributes were not significantly influenced after 3 years of continuously applying combined treatment of CA components. Mineral N (NO3 + NH4), K, Zn and Fe were significantly impacted on by the interactions of CA components at the Phandulwazi site, while N, Cu, Zn and Mn were significantly increased at the Alice site. Low response of SOC to combined CA treatments in the short-term prompted the need to examine treatment effects on individual soil carbon fractions. The interaction of crop rotation and residue management techniques were significant on the fine particulate organic matter – C fractions and microbially respired C. These soil C fractions were more sensitive to short-term treatments of combined CA components than SOC and MBC, therefore they can be used as short-term indicators of CA effects on SOM. Soil organic carbon, MBC, extractable P and K, soil pH, EC, b, AGS (aggregate stability) and BG activity were measured and the Soil Management Assessment Framework (SMAF) used to calculate soil quality index (SQI) values for each treatment. The combination of the crop rotations with crop residue retention showed the potential to significantly improve SQI values in the long term. The highest soil quality improvement at both sites was achieved by the maize-wheat-soybean (MWS) rotation with crop residue retention.
- Full Text:
- Date Issued: 2016
Demand driven rural agricultural development in South Africa: the case of the agricultural sustainable community investment programme
- Authors: Troosters, Wim
- Date: 2015
- Subjects: Agricultural development projects -- South Africa , Farms, Small -- South Africa , Farmers -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10739 , http://hdl.handle.net/10948/d1021149
- Description: Food security is high on the development agenda in South Africa. A wide range of agricultural interventions exist across the country initiated by various stakeholders at different levels of society. While many interventions focus on production related constraints of food security, there are far fewer that focus on the integration of smallholder farmers in the supply chain. The research subject is the Agricultural Sustainable Community Investment Project (Agri-SCIP), operating on the south coast of the Kwa-Zulu Natal Province. As a demand driven alternative market model, the focus of the project is on the integration of local smallholder farmers in the fresh produce supply chain. The main research question is whether the participation of smallholder farmers in the fresh produce supply actually has actually improved for participants of the test case. Existing barriers to entry for smallholder farmers are mitigated in the project. Through a literature review five critical factors for market participation by smallholder farmers are identified, namely transport and distance to markets, product quality, product quantity, the buyer-seller relationship and market information. A literature review and empirical data are applied to test the impact of the Agri-SCIP project on the participation of smallholder farmers in the fresh produce supply chain based on these five critical factors. The data indicate that many of the existing barriers to entry in the fresh produce supply chain for the smallholder farmers are mitigated, and have been shifted to a collectively owned co-operative. Therefore, as an alternative market model, Agri-SCIP has the potential to provide a sustainable solution for smallholder development in South Africa with a strong focus on supply chain participation. The development of a strong smallholder farmers base and the development of smallholder farmers into semi-commercial farmers are potential long term results of the Agri-SCIP alternative market model.
- Full Text:
- Date Issued: 2015
- Authors: Troosters, Wim
- Date: 2015
- Subjects: Agricultural development projects -- South Africa , Farms, Small -- South Africa , Farmers -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10739 , http://hdl.handle.net/10948/d1021149
- Description: Food security is high on the development agenda in South Africa. A wide range of agricultural interventions exist across the country initiated by various stakeholders at different levels of society. While many interventions focus on production related constraints of food security, there are far fewer that focus on the integration of smallholder farmers in the supply chain. The research subject is the Agricultural Sustainable Community Investment Project (Agri-SCIP), operating on the south coast of the Kwa-Zulu Natal Province. As a demand driven alternative market model, the focus of the project is on the integration of local smallholder farmers in the fresh produce supply chain. The main research question is whether the participation of smallholder farmers in the fresh produce supply actually has actually improved for participants of the test case. Existing barriers to entry for smallholder farmers are mitigated in the project. Through a literature review five critical factors for market participation by smallholder farmers are identified, namely transport and distance to markets, product quality, product quantity, the buyer-seller relationship and market information. A literature review and empirical data are applied to test the impact of the Agri-SCIP project on the participation of smallholder farmers in the fresh produce supply chain based on these five critical factors. The data indicate that many of the existing barriers to entry in the fresh produce supply chain for the smallholder farmers are mitigated, and have been shifted to a collectively owned co-operative. Therefore, as an alternative market model, Agri-SCIP has the potential to provide a sustainable solution for smallholder development in South Africa with a strong focus on supply chain participation. The development of a strong smallholder farmers base and the development of smallholder farmers into semi-commercial farmers are potential long term results of the Agri-SCIP alternative market model.
- Full Text:
- Date Issued: 2015
Developed teacher leadership in a township high school : an interpretive case study
- Authors: John, Daisy Mary
- Date: 2015
- Subjects: Educational leadership -- South Africa -- Eastern Cape , School management and organization -- South Africa -- Eastern Cape , Teacher participation in administration -- South Africa -- Eastern Cape , Teacher effectiveness -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2052 , http://hdl.handle.net/10962/d1018548
- Description: South Africa’s future success depends on a number of national priorities, amongst them the transformation of its education system. Education is the best route to follow to alleviate poverty and many other social ills. One way to overcome some of the complex challenges and crises that we face in South African schools is to pay attention to issues of leading and leadership, including the leadership of teachers. This study is done with the hope that research into teacher leadership will be one of the answers to the crisis in education. It should become a beacon of hope for all educationists who passionately want progress in the youth of South Africa. What better way than to ‘Awaken the Sleeping Giant’ of teacher leadership, borrowing the term from Katzenmeyer and Moller (2009). This study was designed as a case study, the purpose of which was to find out about the enactment of teacher leadership in an Eastern Cape township high school as well as the enhancing and hindering factors to this enactment. This study was done as a replication study of a similar study done by a group of 11Master’s students at the University of KwaZulu-Natal in 2010. Similar to the original study, this case study was located within the interpretive paradigm and drew on school profiling, survey questionnaires, a focus group interview, selfreflective journals and individual interviews for its methods of data collection. The study was framed by distributed leadership while Grant’s (2008; 2012) Model of teacher leadership was adopted as the analytical tool. It emerged from the data that the three teacher leaders, my primary participants, exhibited teacher leadership across all four zones of Grant’s (2008) Model. The first zone was leadership in the classroom where all three teacher leaders showed leadership to varying degrees. Zones Two to Four are about leadership beyond the classroom into the school and beyond. In Zone Two, the zone where teachers work with each other and the learners outside the classroom, substantial levels of leadership were enacted by the three teacher leaders. Zone Three, where leadership is exhibited in whole-school development, the three primary participants showed distinct leadership qualities as well. The fourth zone, which is about interaction with neighbouring schools, also revealed that all three teacher leaders demonstrated active leadership on a regular basis. Findings further revealed that there were only a few inhibiting factors to the leadership of teachers at the case study school, including limited resources and infrastructure as well as insufficient support and acknowledgement from the relevant stakeholders when leadership initiatives were made, either successfully or otherwise. However, the enhancing factors superseded the inhibiting factors. A functional committee culture guided by a shared vision existed in the case study school together with an ethos of trust which enabled the staff to work collaboratively. Though there was certainly room for improvement in leadership practices at this case study school, the enactment of teacher leadership in this school illustrated a strong case of ‘developed’ teacher leadership (Muijs& Harris, 2007) within a dispersed leadership framing (Gunter, 2005)
- Full Text:
- Date Issued: 2015
- Authors: John, Daisy Mary
- Date: 2015
- Subjects: Educational leadership -- South Africa -- Eastern Cape , School management and organization -- South Africa -- Eastern Cape , Teacher participation in administration -- South Africa -- Eastern Cape , Teacher effectiveness -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2052 , http://hdl.handle.net/10962/d1018548
- Description: South Africa’s future success depends on a number of national priorities, amongst them the transformation of its education system. Education is the best route to follow to alleviate poverty and many other social ills. One way to overcome some of the complex challenges and crises that we face in South African schools is to pay attention to issues of leading and leadership, including the leadership of teachers. This study is done with the hope that research into teacher leadership will be one of the answers to the crisis in education. It should become a beacon of hope for all educationists who passionately want progress in the youth of South Africa. What better way than to ‘Awaken the Sleeping Giant’ of teacher leadership, borrowing the term from Katzenmeyer and Moller (2009). This study was designed as a case study, the purpose of which was to find out about the enactment of teacher leadership in an Eastern Cape township high school as well as the enhancing and hindering factors to this enactment. This study was done as a replication study of a similar study done by a group of 11Master’s students at the University of KwaZulu-Natal in 2010. Similar to the original study, this case study was located within the interpretive paradigm and drew on school profiling, survey questionnaires, a focus group interview, selfreflective journals and individual interviews for its methods of data collection. The study was framed by distributed leadership while Grant’s (2008; 2012) Model of teacher leadership was adopted as the analytical tool. It emerged from the data that the three teacher leaders, my primary participants, exhibited teacher leadership across all four zones of Grant’s (2008) Model. The first zone was leadership in the classroom where all three teacher leaders showed leadership to varying degrees. Zones Two to Four are about leadership beyond the classroom into the school and beyond. In Zone Two, the zone where teachers work with each other and the learners outside the classroom, substantial levels of leadership were enacted by the three teacher leaders. Zone Three, where leadership is exhibited in whole-school development, the three primary participants showed distinct leadership qualities as well. The fourth zone, which is about interaction with neighbouring schools, also revealed that all three teacher leaders demonstrated active leadership on a regular basis. Findings further revealed that there were only a few inhibiting factors to the leadership of teachers at the case study school, including limited resources and infrastructure as well as insufficient support and acknowledgement from the relevant stakeholders when leadership initiatives were made, either successfully or otherwise. However, the enhancing factors superseded the inhibiting factors. A functional committee culture guided by a shared vision existed in the case study school together with an ethos of trust which enabled the staff to work collaboratively. Though there was certainly room for improvement in leadership practices at this case study school, the enactment of teacher leadership in this school illustrated a strong case of ‘developed’ teacher leadership (Muijs& Harris, 2007) within a dispersed leadership framing (Gunter, 2005)
- Full Text:
- Date Issued: 2015
Development of styrene based imprinted sorbents for selective clean-up of metalloporphyrins in organic media
- Authors: Awokoya, Kehinde Nurudeen
- Date: 2014
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/54521 , vital:26580
- Description: Most crude oils contain traces of vanadium and nickel complex with porphyrins (VTPP and NTPP) within their asphaltene fraction. Although these metals are only present in trace quantities, they have a significant and detrimental impact on the refining process by degrading the quality of intermediate and end products. Therefore, their selective removal is highly desirable. This thesis presents the development of nickel porphyrin, nickel vanadyl porphyrin imprinted nanofibers and vanadyl porphyrin imprinted polymer (MIP) particles for application as selective sorbents. Computational model based on the combination of molecular dynamics simulations and quantum mechanics was successfully applied to the styrene functional monomer selection. The particle was prepared by bulk polymerization and the nanofibers by a novel approach combining molecular imprinting and electrospinning technology. The morphologies, thermal stabilities and porosities of the imprinted sorbents were studied using SEM, TGA, and BET nitrogen gas adsorption. Chloroform was found to swell the polymer particles to a higher degree than methanol and acetonitrile. The adsorption characteristics of the imprinted sorbents best fitted with Freundlich isotherm model. The imprinted sorbents recorded high extraction efficiencies (EEs) of > 99 % in selectively extracting the metalloporphyrins. The impact of the template on the affinity of recognition for NTPP was evaluated. The results showed that the NTPP adsorption capacity increased as the molar ratio of NTPP to styrene was increased from 1:1 to 3:1. The optimal ratio of template to functional monomer which yielded the best specific affinity and highest recovery (99.9 %) was 3:1. The effects of trifluoroacetic acid (TFA), dichloromethane (DCM), dimethyl sulphoxide (DMSO), pentane (PEN) on electro-spinnability of the polymer solutions and the morphological appearance of the nanofibers were investigated. The imprinted nanofibers exhibited the same selectivity specialism for both NTPP and VTPP. A remarkable stability in relation to reusability was observed when imprinted nanofibers were used, as they could be reused nine times without incurring any significant loss in removal efficiency. The results were validated by analysing a certified reference material. The imprinted sorbents were therefore found to be selective sorbents that are well suited for handling trace metals in organic media.
- Full Text:
- Date Issued: 2014
- Authors: Awokoya, Kehinde Nurudeen
- Date: 2014
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/54521 , vital:26580
- Description: Most crude oils contain traces of vanadium and nickel complex with porphyrins (VTPP and NTPP) within their asphaltene fraction. Although these metals are only present in trace quantities, they have a significant and detrimental impact on the refining process by degrading the quality of intermediate and end products. Therefore, their selective removal is highly desirable. This thesis presents the development of nickel porphyrin, nickel vanadyl porphyrin imprinted nanofibers and vanadyl porphyrin imprinted polymer (MIP) particles for application as selective sorbents. Computational model based on the combination of molecular dynamics simulations and quantum mechanics was successfully applied to the styrene functional monomer selection. The particle was prepared by bulk polymerization and the nanofibers by a novel approach combining molecular imprinting and electrospinning technology. The morphologies, thermal stabilities and porosities of the imprinted sorbents were studied using SEM, TGA, and BET nitrogen gas adsorption. Chloroform was found to swell the polymer particles to a higher degree than methanol and acetonitrile. The adsorption characteristics of the imprinted sorbents best fitted with Freundlich isotherm model. The imprinted sorbents recorded high extraction efficiencies (EEs) of > 99 % in selectively extracting the metalloporphyrins. The impact of the template on the affinity of recognition for NTPP was evaluated. The results showed that the NTPP adsorption capacity increased as the molar ratio of NTPP to styrene was increased from 1:1 to 3:1. The optimal ratio of template to functional monomer which yielded the best specific affinity and highest recovery (99.9 %) was 3:1. The effects of trifluoroacetic acid (TFA), dichloromethane (DCM), dimethyl sulphoxide (DMSO), pentane (PEN) on electro-spinnability of the polymer solutions and the morphological appearance of the nanofibers were investigated. The imprinted nanofibers exhibited the same selectivity specialism for both NTPP and VTPP. A remarkable stability in relation to reusability was observed when imprinted nanofibers were used, as they could be reused nine times without incurring any significant loss in removal efficiency. The results were validated by analysing a certified reference material. The imprinted sorbents were therefore found to be selective sorbents that are well suited for handling trace metals in organic media.
- Full Text:
- Date Issued: 2014
Environmental youth clubs in Namibia : what role do, could or should they play in environmental education?
- Authors: Botma, Connie
- Date: 2000
- Subjects: Environmental education -- Namibia Environmental education -- Study and teaching -- Namibia Youth -- Societies and clubs Youth -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1519 , http://hdl.handle.net/10962/d1003401
- Description: Although the existence of wildlife clubs in Africa dates back to the start of the environmental movement in the 1970s, youth involvement through environmental clubs only commenced in Namibia in 1992. I became involved with the clubs in 1995 when I was employed by the Rossing Foundation Environmental Education Project to encourage, support and coordinate environmental clubs in Namibia. During the last three years the number of Namibian clubs has increased from 20 to ±85, and they are now established in most geographical regions of the country. During my involvement with the clubs I became increasingly interested in the philosophical underpinnings of youth movements like clubs and started questioning what we could expect from the youth and what could be achieved through the clubs. One of my main concerns was whether youth could make a significant improvement to the quality of their lives and their environment through these clubs. The aim of my research was therefore to describe and reflect critically on the role of environmental youth clubs in environmental education in Namibia. My study was guided by a socially critical orientation which emphasises the construction of meaning through social dialogue and critical reflection. I chose an interpretative research strategy and generated data mainly through semi-structured interviews, participant observation, a focus-group discussion and a workshop. Due to the focus of the research I purposefully selected the sample of existing youth clubs to be included in the study. The iterative strategy of gathering and interpreting data in successive cycles allowed for continuous reflection throughout the research process. It also allowed me to identify key patterns and trends in analysing and interpreting the data. The study findings suggest that environmental clubs do playa role in learning about environmental issues; in developing personal and social identity, confidence and a sense of purpose in society; in establishing new and supportive relationships between teachers and learners and with other community resourde people; in creating opportunities and enabling exposure to diverse learning environments, options and alternatives; and ih fostering the orientation and skills needed to effect meaningful d1'inges in the environment. The findings also suggest that environmental clubs could make a significant contribution to environmental education, providing that they incorporate a socially critical orientation, gain greater recognition from significant adults and education officials, collaborate with other projects and organisations, and use guidelines of models such as the action research framework to ensure relevant and effective action projects. The main challenges to environmental clubs in Namibia include changing perceptions that youth do not have much to contribute; improving relationships between clubs, schools and communities; dealing with the tension between the possible disempowering effect of central control and the need for more formalised structures in order to gain official recognition; and developing strategies to ensure the clubs' sustainability in the future.
- Full Text:
- Date Issued: 2000
- Authors: Botma, Connie
- Date: 2000
- Subjects: Environmental education -- Namibia Environmental education -- Study and teaching -- Namibia Youth -- Societies and clubs Youth -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1519 , http://hdl.handle.net/10962/d1003401
- Description: Although the existence of wildlife clubs in Africa dates back to the start of the environmental movement in the 1970s, youth involvement through environmental clubs only commenced in Namibia in 1992. I became involved with the clubs in 1995 when I was employed by the Rossing Foundation Environmental Education Project to encourage, support and coordinate environmental clubs in Namibia. During the last three years the number of Namibian clubs has increased from 20 to ±85, and they are now established in most geographical regions of the country. During my involvement with the clubs I became increasingly interested in the philosophical underpinnings of youth movements like clubs and started questioning what we could expect from the youth and what could be achieved through the clubs. One of my main concerns was whether youth could make a significant improvement to the quality of their lives and their environment through these clubs. The aim of my research was therefore to describe and reflect critically on the role of environmental youth clubs in environmental education in Namibia. My study was guided by a socially critical orientation which emphasises the construction of meaning through social dialogue and critical reflection. I chose an interpretative research strategy and generated data mainly through semi-structured interviews, participant observation, a focus-group discussion and a workshop. Due to the focus of the research I purposefully selected the sample of existing youth clubs to be included in the study. The iterative strategy of gathering and interpreting data in successive cycles allowed for continuous reflection throughout the research process. It also allowed me to identify key patterns and trends in analysing and interpreting the data. The study findings suggest that environmental clubs do playa role in learning about environmental issues; in developing personal and social identity, confidence and a sense of purpose in society; in establishing new and supportive relationships between teachers and learners and with other community resourde people; in creating opportunities and enabling exposure to diverse learning environments, options and alternatives; and ih fostering the orientation and skills needed to effect meaningful d1'inges in the environment. The findings also suggest that environmental clubs could make a significant contribution to environmental education, providing that they incorporate a socially critical orientation, gain greater recognition from significant adults and education officials, collaborate with other projects and organisations, and use guidelines of models such as the action research framework to ensure relevant and effective action projects. The main challenges to environmental clubs in Namibia include changing perceptions that youth do not have much to contribute; improving relationships between clubs, schools and communities; dealing with the tension between the possible disempowering effect of central control and the need for more formalised structures in order to gain official recognition; and developing strategies to ensure the clubs' sustainability in the future.
- Full Text:
- Date Issued: 2000