Target selection from airborne magnetic and radiometric data in Steinhausen area, Namibia
- Authors: Naudé, Corus
- Date: 2013 , 2012-11-09
- Subjects: Geomagnetism -- Maps -- Namibia , Geological surveys -- Namibia , Magnetometers , Aeromagnetic prospecting -- Namibia
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4895 , http://hdl.handle.net/10962/d1001520 , Geomagnetism -- Maps -- Namibia , Geological surveys -- Namibia , Magnetometers , Aeromagnetic prospecting -- Namibia
- Description: The eastern branch of the late Proterozoic Damara Orogenic Belt of central Namibia hosts various copper, gold, manganese and uranium deposits, but in the vicinity of Steinhausen, approximately 145 km northeast of Windhoek, the Damara Belt becomes increasingly covered by recent Kalahari cover sediments resulting in little known geology and subsequent lack of discovered economic mineral deposits. Airborne magnetic and radiometric data over the Steinhausen Study Area was enhanced through image processing and filtering to accentuate characteristics of subsurface geology that, by comparing these characteristics to known geology, aided in the interpretive mapping of lithology, structure and targets for follow-up exploration. As a result, some important observations regarding the regional lithology can be drawn. An arenaceous stratigraphic unit that includes a coarse grained, glassy quartzite below the Kuiseb Formation equates to either the eastern Damaran equivalent of the Nosib Group subjected to high grade metamorphism or, alternatively, the upper part of the pre-Damaran sequence, immediately underlying the Damara. The Kuiseb Formation within the study area is uncharacteristically varied as compared to the same formation further west along the Damaran Orogen and can be subdivided into 5 separate units based on geophysical signature. Structural features evident within the study area include the prominent Kudu and Okahandja Lineaments and straddle an area of inferred uplifted stratigraphy of possibly pre-Damara age. The Ekuja Dome (Kibaran age and host to the Omitiomire copper deposit) is also clearly discernible on the airborne magnetic data and is cross-cut by an east-northeast structural zone. Direct targets for follow-up exploration include the Rodenbeck intrusion, anomalous magnetic bodies and numerous radiometric anomalies present within the study area. Identified dome-like features are considered prospective for Omitiomire-style deposits and the Okatjuru Layered Complex is considered a possible source of copper, chromite, magnetite, ilmenite, nickel and the platinum group elements.
- Full Text:
- Date Issued: 2013
- Authors: Naudé, Corus
- Date: 2013 , 2012-11-09
- Subjects: Geomagnetism -- Maps -- Namibia , Geological surveys -- Namibia , Magnetometers , Aeromagnetic prospecting -- Namibia
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4895 , http://hdl.handle.net/10962/d1001520 , Geomagnetism -- Maps -- Namibia , Geological surveys -- Namibia , Magnetometers , Aeromagnetic prospecting -- Namibia
- Description: The eastern branch of the late Proterozoic Damara Orogenic Belt of central Namibia hosts various copper, gold, manganese and uranium deposits, but in the vicinity of Steinhausen, approximately 145 km northeast of Windhoek, the Damara Belt becomes increasingly covered by recent Kalahari cover sediments resulting in little known geology and subsequent lack of discovered economic mineral deposits. Airborne magnetic and radiometric data over the Steinhausen Study Area was enhanced through image processing and filtering to accentuate characteristics of subsurface geology that, by comparing these characteristics to known geology, aided in the interpretive mapping of lithology, structure and targets for follow-up exploration. As a result, some important observations regarding the regional lithology can be drawn. An arenaceous stratigraphic unit that includes a coarse grained, glassy quartzite below the Kuiseb Formation equates to either the eastern Damaran equivalent of the Nosib Group subjected to high grade metamorphism or, alternatively, the upper part of the pre-Damaran sequence, immediately underlying the Damara. The Kuiseb Formation within the study area is uncharacteristically varied as compared to the same formation further west along the Damaran Orogen and can be subdivided into 5 separate units based on geophysical signature. Structural features evident within the study area include the prominent Kudu and Okahandja Lineaments and straddle an area of inferred uplifted stratigraphy of possibly pre-Damara age. The Ekuja Dome (Kibaran age and host to the Omitiomire copper deposit) is also clearly discernible on the airborne magnetic data and is cross-cut by an east-northeast structural zone. Direct targets for follow-up exploration include the Rodenbeck intrusion, anomalous magnetic bodies and numerous radiometric anomalies present within the study area. Identified dome-like features are considered prospective for Omitiomire-style deposits and the Okatjuru Layered Complex is considered a possible source of copper, chromite, magnetite, ilmenite, nickel and the platinum group elements.
- Full Text:
- Date Issued: 2013
Taxing recurrent services rendered by a foreign company to an associated enterprise in South Africa
- Costa, David Patrick Anthony
- Authors: Costa, David Patrick Anthony
- Date: 2013
- Subjects: Vienna Convention on the Law of Treaties (1969) Tax administration and procedure -- South Africa Double taxation -- South Africa Income tax -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:906 , http://hdl.handle.net/10962/d1008269
- Description: The objective of the study was to investigate the right of the South African Government to tax the income earned by a foreign company when rendering services in South Africa to a South African associated enterprise on a recurrent basis, together with the right to tax the amounts paid to the employees of the permanent establishment for services rendered in South Africa. At the same time the research investigated whether the services rendered by a foreign company to an associated enterprise in South Africa on a recurrent basis would constitute a permanent establishment, as this is essential before South Africa may tax either the foreign company or the employees of the permanent establishment (where such employees are not resident in South Africa).The research was conducted by means of a critical analysis of documentary data and data from a limited number of interviews with academics and the authors of textbooks and articles. In order to limit the scope of the research, a number of assumptions were made. Conflicting viewpoints underlying certain of these assumptions were discussed. Some of the important conclusions reached are that the provisions of the Vienna Convention on the Law of Treaties should be taken into account when interpreting South African legislation (including Double Tax Agreements), and that the Organisation for Economic Cooperation and Development (OECD) Commentary may be relied upon when interpreting OECD based Double Tax Agreements in South Africa. No conclusion was reached on whether to apply an ambulatory or a static basis of interpreting the OECD Commentary, however. The final conclusion of the research is that the services rendered in South Africa on a recurrent basis would be geographically and commercially coherent and consequently meet the "location test'. It is clear that as the services are rendered regularly and recurrently, they would be regarded as having the necessary permanence and would meet the 'duration test'. The place of business would therefore be regarded as being fixed (having the necessary degree of permanence). As the services would be rendered at the place of business of the South African entity, they would be regarded as being rendered 'through' the place of business and the foreign entity would be regarded as having a permanent establishment in South Africa (as defined in Article 5(1) of the OECD Model Tax Convention}. The South African Government would therefore be entitled to tax the income attributable to the permanent establishment and the income earned by the non resident employees, who rendered services in South Africa for the permanent establishment. Once the entitlement to tax exists, South African legislative rules determine how South Africa proceeds to tax the income.
- Full Text:
- Date Issued: 2013
- Authors: Costa, David Patrick Anthony
- Date: 2013
- Subjects: Vienna Convention on the Law of Treaties (1969) Tax administration and procedure -- South Africa Double taxation -- South Africa Income tax -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:906 , http://hdl.handle.net/10962/d1008269
- Description: The objective of the study was to investigate the right of the South African Government to tax the income earned by a foreign company when rendering services in South Africa to a South African associated enterprise on a recurrent basis, together with the right to tax the amounts paid to the employees of the permanent establishment for services rendered in South Africa. At the same time the research investigated whether the services rendered by a foreign company to an associated enterprise in South Africa on a recurrent basis would constitute a permanent establishment, as this is essential before South Africa may tax either the foreign company or the employees of the permanent establishment (where such employees are not resident in South Africa).The research was conducted by means of a critical analysis of documentary data and data from a limited number of interviews with academics and the authors of textbooks and articles. In order to limit the scope of the research, a number of assumptions were made. Conflicting viewpoints underlying certain of these assumptions were discussed. Some of the important conclusions reached are that the provisions of the Vienna Convention on the Law of Treaties should be taken into account when interpreting South African legislation (including Double Tax Agreements), and that the Organisation for Economic Cooperation and Development (OECD) Commentary may be relied upon when interpreting OECD based Double Tax Agreements in South Africa. No conclusion was reached on whether to apply an ambulatory or a static basis of interpreting the OECD Commentary, however. The final conclusion of the research is that the services rendered in South Africa on a recurrent basis would be geographically and commercially coherent and consequently meet the "location test'. It is clear that as the services are rendered regularly and recurrently, they would be regarded as having the necessary permanence and would meet the 'duration test'. The place of business would therefore be regarded as being fixed (having the necessary degree of permanence). As the services would be rendered at the place of business of the South African entity, they would be regarded as being rendered 'through' the place of business and the foreign entity would be regarded as having a permanent establishment in South Africa (as defined in Article 5(1) of the OECD Model Tax Convention}. The South African Government would therefore be entitled to tax the income attributable to the permanent establishment and the income earned by the non resident employees, who rendered services in South Africa for the permanent establishment. Once the entitlement to tax exists, South African legislative rules determine how South Africa proceeds to tax the income.
- Full Text:
- Date Issued: 2013
Teachers' and learners' experiences and perceptions concerning the use of English as a language of learning and teaching in bi/multilingual mathematical literarcy classrooms
- Authors: Pillai, Saloshni
- Date: 2013
- Subjects: Education, Bilingual , Mathematics -- Study and teaching , English language -- Usage
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9440 , http://hdl.handle.net/10948/d1021022
- Description: In South Africa, there is concern about the poor achievement by first additional language (FAL) English learners in mathematics, and this is a consequence not solely of the apartheid era but more appropriately, the existing current situation in the classroom. Since 2006, the Department of Basic Education in South Africa introduced mathematical literacy (ML) as another learning area for the Further Education and Training (FET) band. ML, as an alternative choice to mathematics, is envisaged as a key to the understanding of our everyday world filled with numbers. Mathematical literacy FAL English learners and teachers are exposed to a ML curriculum that demands high linguistic skills in English in order to engage with the mathematical concepts through the medium of English which is not their home language. While the Language-in-Education Policy (DoE, 1997) recommends that school language policies promote additive bilingualism and the use of learners’ home languages as languages of learning and teaching (LoLT), there has been little implementation of these recommendations by schools, for the reason that all assessments and learner and teacher support materials (LTSM) are only available in English. Thus it appears that ML creates a language gap when FAL English learners and teachers have to possess a high level of communication and language proficiency of the LoLT English to successfully engage with the mathematical context and content of the ML curriculum since the language itself carries all the meaning. The majority of FAL English learners and teachers struggle with the necessary English language proficiency to successfully interact with the ML curriculum and are often required to use their own home language (code switching) to bring about understanding. In this study, I explore how teachers and learners who are dominantly FAL English speakers, engage in teaching and learning of ML in bi/multilingual classrooms. The main aim of the study is to investigate the FAL English learners’ and teachers’ experiences and perceptions concerning the use of English as the LoLT in bi/multilingual ML classrooms. Qualitative measures were generated through personal interviews (teachers [n=15] and learners [n=25]) from five different secondary schools situated in the rural areas of the Midlands in KwaZulu-Natal. This study is framed by Wenger’s (1991) model of situated learning and Vygotsky’s socio-cultural perspectives, which propose that learning involves a process of engagement in a community of practice and reflects the learners’ sociocultural relationship to school mathematics respectively. The study also describes Cummins’ quadrants and explores the benefits of Cummins’ notion of language use (Cummins, 1984). Analysis of the semi-structured interviews revealed that, despite both teachers’ and learners’ difficulty with the language, English is the more popular language to be used in teaching and learning in bi/multilingual mathematical literacy classrooms since English is accepted as a global language. Worldwide emphasis and dominance of English as a powerful language that gives access to goods and social mobility were also highlighted. However, overall results in this study showed that most participants did express their preference for using their home language isiZulu alongside English through the extensive practice of code switching for the teaching and learning of ML.
- Full Text:
- Date Issued: 2013
- Authors: Pillai, Saloshni
- Date: 2013
- Subjects: Education, Bilingual , Mathematics -- Study and teaching , English language -- Usage
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9440 , http://hdl.handle.net/10948/d1021022
- Description: In South Africa, there is concern about the poor achievement by first additional language (FAL) English learners in mathematics, and this is a consequence not solely of the apartheid era but more appropriately, the existing current situation in the classroom. Since 2006, the Department of Basic Education in South Africa introduced mathematical literacy (ML) as another learning area for the Further Education and Training (FET) band. ML, as an alternative choice to mathematics, is envisaged as a key to the understanding of our everyday world filled with numbers. Mathematical literacy FAL English learners and teachers are exposed to a ML curriculum that demands high linguistic skills in English in order to engage with the mathematical concepts through the medium of English which is not their home language. While the Language-in-Education Policy (DoE, 1997) recommends that school language policies promote additive bilingualism and the use of learners’ home languages as languages of learning and teaching (LoLT), there has been little implementation of these recommendations by schools, for the reason that all assessments and learner and teacher support materials (LTSM) are only available in English. Thus it appears that ML creates a language gap when FAL English learners and teachers have to possess a high level of communication and language proficiency of the LoLT English to successfully engage with the mathematical context and content of the ML curriculum since the language itself carries all the meaning. The majority of FAL English learners and teachers struggle with the necessary English language proficiency to successfully interact with the ML curriculum and are often required to use their own home language (code switching) to bring about understanding. In this study, I explore how teachers and learners who are dominantly FAL English speakers, engage in teaching and learning of ML in bi/multilingual classrooms. The main aim of the study is to investigate the FAL English learners’ and teachers’ experiences and perceptions concerning the use of English as the LoLT in bi/multilingual ML classrooms. Qualitative measures were generated through personal interviews (teachers [n=15] and learners [n=25]) from five different secondary schools situated in the rural areas of the Midlands in KwaZulu-Natal. This study is framed by Wenger’s (1991) model of situated learning and Vygotsky’s socio-cultural perspectives, which propose that learning involves a process of engagement in a community of practice and reflects the learners’ sociocultural relationship to school mathematics respectively. The study also describes Cummins’ quadrants and explores the benefits of Cummins’ notion of language use (Cummins, 1984). Analysis of the semi-structured interviews revealed that, despite both teachers’ and learners’ difficulty with the language, English is the more popular language to be used in teaching and learning in bi/multilingual mathematical literacy classrooms since English is accepted as a global language. Worldwide emphasis and dominance of English as a powerful language that gives access to goods and social mobility were also highlighted. However, overall results in this study showed that most participants did express their preference for using their home language isiZulu alongside English through the extensive practice of code switching for the teaching and learning of ML.
- Full Text:
- Date Issued: 2013
Teachers' experiences regarding the national curriculum statement implementation in the Mthatha District, Eastern Cape, South Africa
- Ngibe, Nondwe Cynthia Phelokazi
- Authors: Ngibe, Nondwe Cynthia Phelokazi
- Date: 2013
- Subjects: National curriculum statement -- Education
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:18436 , http://hdl.handle.net/11260/d1007191
- Description: This is a study that was conducted in order to explore Mthatha teachers’ experiences in relation to the implementation of the New Curriculum Statement (NCS). The new curriculum, having been introduced in 1997, presented some challenges that were encountered by the Junior Secondary School teachers, who were required to implement it. The challenges experienced by teachers included too much paperwork, confusion and stress, widespread learner underperformance in international and local assessments, teacher workload and the administrative burden. Ten schools from the population of schools in the Mthatha District were purposely sampled and data were collected. Quantitative and qualitative research methodologies were used to collect data from the participants who were teachers of Mthatha junior secondary schools. Questionnaires were used to collect data from teachers and structured interviews were given to school managers. The data were analyzed manually and by using SPSS Windows version 19.0 (SPSS Inc, Chicago, IL, USA). It emerged from the study that the workload was excessive as to the paperwork and confusion and stress are there due to continuous changes in the curriculum. Regular workshops conducted by experts need to be arranged timeously. Administrative equipment in schools, such as computers, are sorely needed together with clerical staff that could help with administrative tasks.
- Full Text:
- Date Issued: 2013
- Authors: Ngibe, Nondwe Cynthia Phelokazi
- Date: 2013
- Subjects: National curriculum statement -- Education
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:18436 , http://hdl.handle.net/11260/d1007191
- Description: This is a study that was conducted in order to explore Mthatha teachers’ experiences in relation to the implementation of the New Curriculum Statement (NCS). The new curriculum, having been introduced in 1997, presented some challenges that were encountered by the Junior Secondary School teachers, who were required to implement it. The challenges experienced by teachers included too much paperwork, confusion and stress, widespread learner underperformance in international and local assessments, teacher workload and the administrative burden. Ten schools from the population of schools in the Mthatha District were purposely sampled and data were collected. Quantitative and qualitative research methodologies were used to collect data from the participants who were teachers of Mthatha junior secondary schools. Questionnaires were used to collect data from teachers and structured interviews were given to school managers. The data were analyzed manually and by using SPSS Windows version 19.0 (SPSS Inc, Chicago, IL, USA). It emerged from the study that the workload was excessive as to the paperwork and confusion and stress are there due to continuous changes in the curriculum. Regular workshops conducted by experts need to be arranged timeously. Administrative equipment in schools, such as computers, are sorely needed together with clerical staff that could help with administrative tasks.
- Full Text:
- Date Issued: 2013
Technology transfer of antibacterial oral solid dosage form in a pharmaceutical industry
- Authors: Ramloll, Jason
- Date: 2013
- Subjects: Clinical pharmacology Pharmacy -- Research , Pharmaceutical industry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/47913 , vital:40398
- Description: Technology transfer (TT) looks at the transfer of intellectual property from one manufacturing site to another. If carried out successfully, a TT can increase the leveraging capability of the company acquiring the intellectual property together with its brand strength. This in turn aids in a decreased time to market of the final dosage form produced. The aim of the research was to assess the TT of an antibacterial oral solid dosage form from one manufacturing site to another. An expected change of manufacturing equipment from a single-pot to a multi-phase system took place due to the equipment available at the receiving unit. The assessment done by the researcher was performed in the capacity of an observer. The assessment of the TT was performed by observing the critical stages during the transfer process, namely the development and validation stages. Prior to the start of the development stage, a characterisation of innovator was performed. At this stage, innovator batches received from the Sending Unit (SU) were characterised to allow for a means of comparison. The development stage allows for the determination of the robustness of the formulation to be used whilst the validation stage will look at the reproducibility of the chosen formulation. During the development stage, small scale trials were manufactured with amendments made to the original formulation. The amendments allowed for a formulation more comparable to the innovator product with regards to its dissolution profile. The comparable batch produced at a small scale was then up-scaled to a production scale batch and these were compared to the innovator products. The amendments made were on the amount of granulation fluid and binder as well as the method of addition of the disintegrant. When a large scale batch comparable to that of the innovator product was produced, the validation stage was started. With the aim of showing reproducibility of the Receiving Unit (RU) at producing large scale batches, three batches were produced. These were tested for all critical parameters, namely through the loss on drying, particle size distribution, hardness, disintegration and dissolution tests and, the results of the tests were compared to the specifications set by the SU. They were also compared to each other, enabling statistical determination of any significant difference across the batches through the use of comparative statistical analyses. Comparison of batches, at the development and validation stage, was done using the dissolution potential of the batches. These were performed through the use of statistical analyses. The RU made use of the similarity factor (F2) to compare the dissolution profiles. For the purpose of this research, the 1-Way analysis of variance was also used, which compared to the similarity factor, took in consideration the level of variance of the batches produced. Results and discussion: During the development stage amendments were made to produce a batch comparable to the innovator product. The amendments that led to the production of a comparable batch consisted of an extra 14 % of granulation fluid as well as 50 % of the disintegrant being added intra-granularly with the other 50 % added extra-granularly. The amendments were added on top of the amount suggested by the SU. This formulation was used and three batches produced consecutively. On comparison to the specifications set by the SU, the three batches were seen to be within the specifications. On comparison to each other, the dissolution profiles were seen to be different. Conclusion and recommendation: The development stage producing batches within the specifications set by the SU but also comparable with regards to its dissolution profile, was seen to be successful. The validation stage was seen to be unsuccessful. Even though the results of the critical parameters were within specifications, when compared to each other, the batches were seen to be significantly different. This led to the research looking at the TT as a whole as being unsuccessful. The researcher then determined what stage could be improved and how this could be done. The various stages seen as having associated problems were determined and ways to mitigate those were determined. A guideline in the form of a flow chart was proposed to aid a manufacturing facility undertaking a TT to shorten the period of time to completion as well as increase the chance of success.
- Full Text:
- Date Issued: 2013
- Authors: Ramloll, Jason
- Date: 2013
- Subjects: Clinical pharmacology Pharmacy -- Research , Pharmaceutical industry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/47913 , vital:40398
- Description: Technology transfer (TT) looks at the transfer of intellectual property from one manufacturing site to another. If carried out successfully, a TT can increase the leveraging capability of the company acquiring the intellectual property together with its brand strength. This in turn aids in a decreased time to market of the final dosage form produced. The aim of the research was to assess the TT of an antibacterial oral solid dosage form from one manufacturing site to another. An expected change of manufacturing equipment from a single-pot to a multi-phase system took place due to the equipment available at the receiving unit. The assessment done by the researcher was performed in the capacity of an observer. The assessment of the TT was performed by observing the critical stages during the transfer process, namely the development and validation stages. Prior to the start of the development stage, a characterisation of innovator was performed. At this stage, innovator batches received from the Sending Unit (SU) were characterised to allow for a means of comparison. The development stage allows for the determination of the robustness of the formulation to be used whilst the validation stage will look at the reproducibility of the chosen formulation. During the development stage, small scale trials were manufactured with amendments made to the original formulation. The amendments allowed for a formulation more comparable to the innovator product with regards to its dissolution profile. The comparable batch produced at a small scale was then up-scaled to a production scale batch and these were compared to the innovator products. The amendments made were on the amount of granulation fluid and binder as well as the method of addition of the disintegrant. When a large scale batch comparable to that of the innovator product was produced, the validation stage was started. With the aim of showing reproducibility of the Receiving Unit (RU) at producing large scale batches, three batches were produced. These were tested for all critical parameters, namely through the loss on drying, particle size distribution, hardness, disintegration and dissolution tests and, the results of the tests were compared to the specifications set by the SU. They were also compared to each other, enabling statistical determination of any significant difference across the batches through the use of comparative statistical analyses. Comparison of batches, at the development and validation stage, was done using the dissolution potential of the batches. These were performed through the use of statistical analyses. The RU made use of the similarity factor (F2) to compare the dissolution profiles. For the purpose of this research, the 1-Way analysis of variance was also used, which compared to the similarity factor, took in consideration the level of variance of the batches produced. Results and discussion: During the development stage amendments were made to produce a batch comparable to the innovator product. The amendments that led to the production of a comparable batch consisted of an extra 14 % of granulation fluid as well as 50 % of the disintegrant being added intra-granularly with the other 50 % added extra-granularly. The amendments were added on top of the amount suggested by the SU. This formulation was used and three batches produced consecutively. On comparison to the specifications set by the SU, the three batches were seen to be within the specifications. On comparison to each other, the dissolution profiles were seen to be different. Conclusion and recommendation: The development stage producing batches within the specifications set by the SU but also comparable with regards to its dissolution profile, was seen to be successful. The validation stage was seen to be unsuccessful. Even though the results of the critical parameters were within specifications, when compared to each other, the batches were seen to be significantly different. This led to the research looking at the TT as a whole as being unsuccessful. The researcher then determined what stage could be improved and how this could be done. The various stages seen as having associated problems were determined and ways to mitigate those were determined. A guideline in the form of a flow chart was proposed to aid a manufacturing facility undertaking a TT to shorten the period of time to completion as well as increase the chance of success.
- Full Text:
- Date Issued: 2013
Teenage fathers as learners in a Butterworth Secondary School: implications for sex education
- Authors: Njambatwa, Mluleki
- Date: 2013
- Subjects: Teenage pregnancy -- South Africa -- Eastern Cape , Teenagers -- South Africa -- Eastern Cape , High schools -- South Africa -- Eastern Cape , Sex instruction -- South Africa -- Eastern Cape , Teenage fathers -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16195 , http://hdl.handle.net/10353/d1006294 , Teenage pregnancy -- South Africa -- Eastern Cape , Teenagers -- South Africa -- Eastern Cape , High schools -- South Africa -- Eastern Cape , Sex instruction -- South Africa -- Eastern Cape , Teenage fathers -- South Africa -- Eastern Cape
- Description: Teenage pregnancy is one of the social and health problems in many communities of South Africa and is escalating (Richter, 2005). Teenage pregnancy is also a global health problem as it affects the whole world and has been a concern to health workers like medical doctors, nurses, community developers, educators and parents (Maholo, 2009). In addition, the risk of dropping out of school due to pregnancy is considerable to teenagers as it results in a lack of qualifications and future unemployment.The purpose of this study was to determine the perceptions and experience of teenage fathers who are both learners and fathers and their views on the effects of teenage pregnancy. Furthermore, this investigation was undertaken to investigate the implications of teenage fathers‘ experiences on sex education. This study followed qualitative research approach as it is based on male teenage pregnancy which is a real consequence of teenagers engaging in sexual activities (Silverman, 2006). In this study the data collected through in depth interviews and personal journals were analyzed.This study revealed that all the teenage fathers interviewed were not happy that they were teenage fathers instead they were disappointed, shocked, and regretful and did not believe that they could become fathers at their respective ages. They also regretted themselves for becoming teenage fathers as it delays them in their studies. They have been taught about sex education at school in a learning area called life orientation so they do not blame school but themselves for their actions.
- Full Text:
- Date Issued: 2013
- Authors: Njambatwa, Mluleki
- Date: 2013
- Subjects: Teenage pregnancy -- South Africa -- Eastern Cape , Teenagers -- South Africa -- Eastern Cape , High schools -- South Africa -- Eastern Cape , Sex instruction -- South Africa -- Eastern Cape , Teenage fathers -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16195 , http://hdl.handle.net/10353/d1006294 , Teenage pregnancy -- South Africa -- Eastern Cape , Teenagers -- South Africa -- Eastern Cape , High schools -- South Africa -- Eastern Cape , Sex instruction -- South Africa -- Eastern Cape , Teenage fathers -- South Africa -- Eastern Cape
- Description: Teenage pregnancy is one of the social and health problems in many communities of South Africa and is escalating (Richter, 2005). Teenage pregnancy is also a global health problem as it affects the whole world and has been a concern to health workers like medical doctors, nurses, community developers, educators and parents (Maholo, 2009). In addition, the risk of dropping out of school due to pregnancy is considerable to teenagers as it results in a lack of qualifications and future unemployment.The purpose of this study was to determine the perceptions and experience of teenage fathers who are both learners and fathers and their views on the effects of teenage pregnancy. Furthermore, this investigation was undertaken to investigate the implications of teenage fathers‘ experiences on sex education. This study followed qualitative research approach as it is based on male teenage pregnancy which is a real consequence of teenagers engaging in sexual activities (Silverman, 2006). In this study the data collected through in depth interviews and personal journals were analyzed.This study revealed that all the teenage fathers interviewed were not happy that they were teenage fathers instead they were disappointed, shocked, and regretful and did not believe that they could become fathers at their respective ages. They also regretted themselves for becoming teenage fathers as it delays them in their studies. They have been taught about sex education at school in a learning area called life orientation so they do not blame school but themselves for their actions.
- Full Text:
- Date Issued: 2013
Testing random walk hypothesis in the stock market prices: evidence from South Africa's stock exchange (2000- 2011)
- Chitenderu, Tafadzwa Thelmah
- Authors: Chitenderu, Tafadzwa Thelmah
- Date: 2013
- Subjects: Johannesburg Stock Exchange , Stock exchanges -- South Africa -- Johannesburg , Random walks (Mathematics)
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11461 , http://hdl.handle.net/10353/d1006931 , Johannesburg Stock Exchange , Stock exchanges -- South Africa -- Johannesburg , Random walks (Mathematics)
- Description: The Johannesburg Stock Exchange market was tested for the existence of the random walk hypothesis using All Share Index (ALSI) and time series data for the period between 2000 and 2011. The traditionally used methods, the unit root tests and autocorrelation test were employed first and they all confirmed that during the period under consideration, the JSE price index followed the random walk process. In addition, the ARIMA model was built and it was found that the ARIMA ( 1, 1, 1) was the model that best fitted the data in question. Furthermore, residual tests to help determine whether the residuals of the estimated equation show random walk process in the series were done. It was found that the ALSI resembles series that follow random walk hypothesis with strong evidence of RWH indicated in the conducted forecasting tests which showed vast variance between forecasted values and actual indicating little or no forecasting strength in the series. To further validate the findings in this research, the variance ratio test was conducted under heteroscedasticity and it also strongly corroborated that the existence of a random walk process cannot be rejected in the JSE. It was concluded that since the returns follow the random walk hypothesis, it can be said that JSE is efficient in the weak form level of the EMH and therefore opportunities of making excess returns based on out- performing the market is ruled out and is merely a game of chance. In other words, it will be of no use to choose stocks based on information about recent trends in stock prices.
- Full Text:
- Date Issued: 2013
- Authors: Chitenderu, Tafadzwa Thelmah
- Date: 2013
- Subjects: Johannesburg Stock Exchange , Stock exchanges -- South Africa -- Johannesburg , Random walks (Mathematics)
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11461 , http://hdl.handle.net/10353/d1006931 , Johannesburg Stock Exchange , Stock exchanges -- South Africa -- Johannesburg , Random walks (Mathematics)
- Description: The Johannesburg Stock Exchange market was tested for the existence of the random walk hypothesis using All Share Index (ALSI) and time series data for the period between 2000 and 2011. The traditionally used methods, the unit root tests and autocorrelation test were employed first and they all confirmed that during the period under consideration, the JSE price index followed the random walk process. In addition, the ARIMA model was built and it was found that the ARIMA ( 1, 1, 1) was the model that best fitted the data in question. Furthermore, residual tests to help determine whether the residuals of the estimated equation show random walk process in the series were done. It was found that the ALSI resembles series that follow random walk hypothesis with strong evidence of RWH indicated in the conducted forecasting tests which showed vast variance between forecasted values and actual indicating little or no forecasting strength in the series. To further validate the findings in this research, the variance ratio test was conducted under heteroscedasticity and it also strongly corroborated that the existence of a random walk process cannot be rejected in the JSE. It was concluded that since the returns follow the random walk hypothesis, it can be said that JSE is efficient in the weak form level of the EMH and therefore opportunities of making excess returns based on out- performing the market is ruled out and is merely a game of chance. In other words, it will be of no use to choose stocks based on information about recent trends in stock prices.
- Full Text:
- Date Issued: 2013
The Accidental Prospector
- Authors: De Moor, Irene J
- Date: 2013
- Subjects: Uncataloged
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5961 , http://hdl.handle.net/10962/d1004214
- Description: While excavating an ant nest in the river gravels of the NW Cape Diamond fields, Amanda de Bruyn, an entomologist studying the aggressive Camponotus fulvopilosus,finds a diamond. She is torn between the necessity of handing it in to the authorities and the dream of making a quick buck. When a stroke of bad luck renders her current research project null and void she is faced with the prospect of losing her career and her research funding. She is forced to consider selling her diamond and embarks on an adventure that will carry herback into South Africa’s dark past and derail her marriage and career.
- Full Text:
- Date Issued: 2013
- Authors: De Moor, Irene J
- Date: 2013
- Subjects: Uncataloged
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5961 , http://hdl.handle.net/10962/d1004214
- Description: While excavating an ant nest in the river gravels of the NW Cape Diamond fields, Amanda de Bruyn, an entomologist studying the aggressive Camponotus fulvopilosus,finds a diamond. She is torn between the necessity of handing it in to the authorities and the dream of making a quick buck. When a stroke of bad luck renders her current research project null and void she is faced with the prospect of losing her career and her research funding. She is forced to consider selling her diamond and embarks on an adventure that will carry herback into South Africa’s dark past and derail her marriage and career.
- Full Text:
- Date Issued: 2013
The assessment of the Skills Development Training Programmes on the performance of educators : the case study of two selected schools in King Williams Town
- Authors: Ncukana, Litha
- Date: 2013
- Subjects: Teachers -- Training of -- South Africa , Teachers -- Development -- South Africa -- Eastern Cape , Education -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8322 , http://hdl.handle.net/10948/d1020160
- Description: The primary objective of this study is to conduct an assessment of the effectiveness of skills development training programmes on the performance of educators, with specific reference to the case study of two selected schools in King Williams Town, Eastern Cape Province. This study is derived from the fact that in order for the government to provide efficient and effective service delivery to the population, the Public Service requires employees with requisite competency. There is a need for continuous improvement of capacity and skills development in the Public Service with the purpose of ensuring that employees who are recruited and retained in the Public Service have the requisite skills to perform their responsibilities. It is within such postulation that the main purpose of this study is to evaluate the effectiveness of skills development training programmes on the performance of Eastern Cape educators, so that improvement measures can be suggested. Two selected schools in King Williams Town district participated in the study and the detailed analysis of the findings imply that some of the on-the-job skills development training programmes that are used in the Eastern Cape Department of Education include coaching, counseling, job rotation, job enrichment, project work , mentoring, use of assistantship and committees or quality circles. Some interview participants construe that the strategies or measures that can be used to improve the implementation of skills development programmes for educators in the Eastern Cape Department of Education include commitment from school authorities, remunerate the learners, adopting support policies, possible promotion after training and investing more resources.
- Full Text:
- Date Issued: 2013
- Authors: Ncukana, Litha
- Date: 2013
- Subjects: Teachers -- Training of -- South Africa , Teachers -- Development -- South Africa -- Eastern Cape , Education -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8322 , http://hdl.handle.net/10948/d1020160
- Description: The primary objective of this study is to conduct an assessment of the effectiveness of skills development training programmes on the performance of educators, with specific reference to the case study of two selected schools in King Williams Town, Eastern Cape Province. This study is derived from the fact that in order for the government to provide efficient and effective service delivery to the population, the Public Service requires employees with requisite competency. There is a need for continuous improvement of capacity and skills development in the Public Service with the purpose of ensuring that employees who are recruited and retained in the Public Service have the requisite skills to perform their responsibilities. It is within such postulation that the main purpose of this study is to evaluate the effectiveness of skills development training programmes on the performance of Eastern Cape educators, so that improvement measures can be suggested. Two selected schools in King Williams Town district participated in the study and the detailed analysis of the findings imply that some of the on-the-job skills development training programmes that are used in the Eastern Cape Department of Education include coaching, counseling, job rotation, job enrichment, project work , mentoring, use of assistantship and committees or quality circles. Some interview participants construe that the strategies or measures that can be used to improve the implementation of skills development programmes for educators in the Eastern Cape Department of Education include commitment from school authorities, remunerate the learners, adopting support policies, possible promotion after training and investing more resources.
- Full Text:
- Date Issued: 2013
The bank lending and balance sheet channels of monetary policy: a theoretical analysis
- Authors: Gumede, Nomdumiso Beryl
- Date: 2013
- Subjects: Monetary policy Money Bank loans Financial sheets
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:933 , http://hdl.handle.net/10962/d1001864
- Description: The credit channel and its significance in the monetary policy transmission mechanism has been a point of contention among policy makers and economists for many years. In the early stages of this debate the monetarist view shaped thinking on the topic and cultivated the belief that the money supply is exogenously determined and that commercial banks playa minor role in the monetary transmission process. However, over the years, the credit view presented by Bernanke and Blinder (1988) has gained momentum. In contrast to the monetarist view, the credit view abandons the assumption of perfect substitutability and argues that due to their credit provision activities, financial institutions playa significant role in the transmission of monetary policy. The credit channel consists of two sub channels, the bank lending and balance sheet channels. In both, deposits drive loans and changes in monetary policy are effected through interest rates and their impact on borrowers' balance sheets, bank reserves, bank deposits and ultimately the quantity of bank loans supplied. Disyatat (2010) re-examines the conventional view and presents an argument against the foundation upon which the theories are based. Using this as a basis, and motivated by the vast amount of empirical literature that already exists on this topic, both in South Africa and abroad, this research provides a theoretical analysis of the credit channel and its relative importance in the monetary policy transmission mechanism. The exogenous/endogenous nature of money supply is considered and its implications for the existence and operation of the credit channel set out. It is found that, in order for a credit channel to operate efficiently in an economy, money supply should be endogenously determined. Moreover, a theoretical argument supporting Disyatat's (2010) revised credit channel is presented; it is concluded that, with a slight variation to Disyatat's proposed model, a single, unified channel exists.
- Full Text:
- Date Issued: 2013
- Authors: Gumede, Nomdumiso Beryl
- Date: 2013
- Subjects: Monetary policy Money Bank loans Financial sheets
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:933 , http://hdl.handle.net/10962/d1001864
- Description: The credit channel and its significance in the monetary policy transmission mechanism has been a point of contention among policy makers and economists for many years. In the early stages of this debate the monetarist view shaped thinking on the topic and cultivated the belief that the money supply is exogenously determined and that commercial banks playa minor role in the monetary transmission process. However, over the years, the credit view presented by Bernanke and Blinder (1988) has gained momentum. In contrast to the monetarist view, the credit view abandons the assumption of perfect substitutability and argues that due to their credit provision activities, financial institutions playa significant role in the transmission of monetary policy. The credit channel consists of two sub channels, the bank lending and balance sheet channels. In both, deposits drive loans and changes in monetary policy are effected through interest rates and their impact on borrowers' balance sheets, bank reserves, bank deposits and ultimately the quantity of bank loans supplied. Disyatat (2010) re-examines the conventional view and presents an argument against the foundation upon which the theories are based. Using this as a basis, and motivated by the vast amount of empirical literature that already exists on this topic, both in South Africa and abroad, this research provides a theoretical analysis of the credit channel and its relative importance in the monetary policy transmission mechanism. The exogenous/endogenous nature of money supply is considered and its implications for the existence and operation of the credit channel set out. It is found that, in order for a credit channel to operate efficiently in an economy, money supply should be endogenously determined. Moreover, a theoretical argument supporting Disyatat's (2010) revised credit channel is presented; it is concluded that, with a slight variation to Disyatat's proposed model, a single, unified channel exists.
- Full Text:
- Date Issued: 2013
The challenges faced by the Masizame bakery as a co-operative in Steynsburg aimed at alleviating poverty
- Authors: Loni, Sisanda
- Date: 2013
- Subjects: Cooperative societies -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape , Poverty -- Economic aspects -- South Africa -- Eastern Cape , Community development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9167 , http://hdl.handle.net/10948/d1020093
- Description: This study investigated the challenges faced by the Masizame Bakery as a cooperative in Steynsburg. The co-operative sector, tracing back to the 1800s, has become recognised as a key vehicle for community development and poverty alleviation. According to the Department of Trade and Industry (2012), international practices show that countries which have achieved economic development also have a vibrant and a dynamic co-operative sector, contributing substantially to the growth of their economies. The sector’s international success and foundations in agriculture have found resonance with the post-apartheid government in achieving social transformation and alleviating poverty in South Africa. The co-operative model in South Africa proved a success during the apartheid era in the agricultural sector with a turnover of about R22.5 billion. Post-1994 the government hopes to achieve the same level of success through the sector to transform the country’s socio-economic landscape. The co-operative sector’s principles of self-help and self-reliance have become synonymous with democratic South Africa’s government plea to active citizenry in development – Vuku’zenzele. Some South Africans have responded to this call to change their economic conditions through co-operatives. However, investment in the co-operative sector has found varying degrees of success and failure across South Africa’s provinces, with the Northern Cape, the Eastern Cape, and Free State experiencing the highest mortality rates. The areas’ rural hinterland has been attributed to this high failure rate, thus posing the need to investigate the challenges faced by co-ops in small towns such as Steynsburg. The study provides an overview of the sector’s history, including its growth in countries across the world. The role of co-ops in poverty alleviation has also been discussed. This role was interrogated in discussions held through interviews and focus groups with both members of the Masizame Bakery and other projects in the area, including public officials involved in both community.
- Full Text:
- Date Issued: 2013
- Authors: Loni, Sisanda
- Date: 2013
- Subjects: Cooperative societies -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape , Poverty -- Economic aspects -- South Africa -- Eastern Cape , Community development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9167 , http://hdl.handle.net/10948/d1020093
- Description: This study investigated the challenges faced by the Masizame Bakery as a cooperative in Steynsburg. The co-operative sector, tracing back to the 1800s, has become recognised as a key vehicle for community development and poverty alleviation. According to the Department of Trade and Industry (2012), international practices show that countries which have achieved economic development also have a vibrant and a dynamic co-operative sector, contributing substantially to the growth of their economies. The sector’s international success and foundations in agriculture have found resonance with the post-apartheid government in achieving social transformation and alleviating poverty in South Africa. The co-operative model in South Africa proved a success during the apartheid era in the agricultural sector with a turnover of about R22.5 billion. Post-1994 the government hopes to achieve the same level of success through the sector to transform the country’s socio-economic landscape. The co-operative sector’s principles of self-help and self-reliance have become synonymous with democratic South Africa’s government plea to active citizenry in development – Vuku’zenzele. Some South Africans have responded to this call to change their economic conditions through co-operatives. However, investment in the co-operative sector has found varying degrees of success and failure across South Africa’s provinces, with the Northern Cape, the Eastern Cape, and Free State experiencing the highest mortality rates. The areas’ rural hinterland has been attributed to this high failure rate, thus posing the need to investigate the challenges faced by co-ops in small towns such as Steynsburg. The study provides an overview of the sector’s history, including its growth in countries across the world. The role of co-ops in poverty alleviation has also been discussed. This role was interrogated in discussions held through interviews and focus groups with both members of the Masizame Bakery and other projects in the area, including public officials involved in both community.
- Full Text:
- Date Issued: 2013
The challenges facing the implementation of local economic development programmes: a case study of the Great Kei Local Municipality
- Authors: Matroko, Thuliwe Nopinki
- Date: 2013
- Subjects: Economic development projects -- South Africa , Economic development -- South Africa -- Eastern Cape , Regional economics -- South Africa. , Local government -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9192 , http://hdl.handle.net/10948/d1020339
- Description: In this study, Local Economic Development (LED) is defined as an outcome of processes aimed at building the capacity of local areas for sustainable economic development. The study intended to investigate the challenges faced by Eastern Cape municipalities in implementing the LED programme. A sample of ten participants was drawn from two LED projects. The sample was distributed evenly with five beneficiaries per LED project. Data was collected using qualitative research methods through questionnaires. The sampling technique used was purposive to enable the researcher to select specific beneficiaries from each project and to allow the LED official responsible for each project to participate in the study. Budgetary constraints and staff shortages were identified as the main challenges facing the Great Kei Local Municipality. These two challenges have made it difficult for the municipality to implement proficiently LED programmes that are meant to effectively eradicate poverty and create employment. It is therefore recommended that the municipality should form partnerships with the private sector to boost the local economy by way of cooperative delivery of services, funding of projects and the supplementing of the municipal budget. The private enterprise/sector in an economy includes all large, medium, small and micro-enterprises (SMMEs). For example, large mining companies and factories as well the smallest spaza shop or stall at a taxi rank are part of private enterprise in a local economy. Whilst regulating such companies by way of licenses and taxes to raise national revenue, the government has limited control in the determination of how these enterprises are run. The result of such partnerships between the municipality and private sector will hopefully be the realisation of “a better life for all” as local people will be employed through investment promotion.
- Full Text:
- Date Issued: 2013
- Authors: Matroko, Thuliwe Nopinki
- Date: 2013
- Subjects: Economic development projects -- South Africa , Economic development -- South Africa -- Eastern Cape , Regional economics -- South Africa. , Local government -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9192 , http://hdl.handle.net/10948/d1020339
- Description: In this study, Local Economic Development (LED) is defined as an outcome of processes aimed at building the capacity of local areas for sustainable economic development. The study intended to investigate the challenges faced by Eastern Cape municipalities in implementing the LED programme. A sample of ten participants was drawn from two LED projects. The sample was distributed evenly with five beneficiaries per LED project. Data was collected using qualitative research methods through questionnaires. The sampling technique used was purposive to enable the researcher to select specific beneficiaries from each project and to allow the LED official responsible for each project to participate in the study. Budgetary constraints and staff shortages were identified as the main challenges facing the Great Kei Local Municipality. These two challenges have made it difficult for the municipality to implement proficiently LED programmes that are meant to effectively eradicate poverty and create employment. It is therefore recommended that the municipality should form partnerships with the private sector to boost the local economy by way of cooperative delivery of services, funding of projects and the supplementing of the municipal budget. The private enterprise/sector in an economy includes all large, medium, small and micro-enterprises (SMMEs). For example, large mining companies and factories as well the smallest spaza shop or stall at a taxi rank are part of private enterprise in a local economy. Whilst regulating such companies by way of licenses and taxes to raise national revenue, the government has limited control in the determination of how these enterprises are run. The result of such partnerships between the municipality and private sector will hopefully be the realisation of “a better life for all” as local people will be employed through investment promotion.
- Full Text:
- Date Issued: 2013
The characterization and electrochemistry of dye-sensitized solar cells
- Authors: Caga, Noloyiso
- Date: 2013
- Subjects: Dye-sensitized solar cells , Acetonitrile , Electrochemistry , Spectrum analysis
- Language: English
- Type: Thesis , Masters , MSc (Chemistry)
- Identifier: vital:11341 , http://hdl.handle.net/10353/d1016069 , Dye-sensitized solar cells , Acetonitrile , Electrochemistry , Spectrum analysis
- Description: In this study a presentation of the technology behind dye-sensitized solar cells, their design as well as the role of the different parts of the cell. The characterization of the cell is divided into four sections namely: the characterization of the paste required to make the TiO2 film and its optical properties using SEM-EDX and XRD analytical techniques; Analysis of the various absorptions of three Ru-based dyes using UV-Vis spectroscopy, Photoluminescence and Fourier Transform Infra-Red spectroscopy; the characterization and the analyses of the entire cell using Electrochemical Impedance Spectroscopy. The nine cells were prepared by examining RuL2(CN)2 , RuL2(NCS)2 or N3 dye and RuL2(NCS)2 TBA+ or N719 dye. [L = 2,2'-bipyridyl-4,4'-dicarboxylic acid ;TBA = tetra-butyl ammonium] were combined with three electrolytes namely: Z–150 , AN–50 and PN–50. The Iodolyte PN–50 is an iodide based low viscosity electrolyte with 50 mM of tri-iodide dissolved in a solvent called propionitrile (PN). The Iodolyte AN–50 is an iodide based low viscosity electrolyte with 50 mM of tri-iodide dissolved in a solvent called acetonitrile (AN). The Iodolyte Z–150 is an iodide based low viscosity electrolyte with 150 mM of tri-iodide dissolved in a solvent called 3-methoxypropionitrile (MPN) and with additives such an ionic liquid, malkylbenziimidazole and guanidine thiocyanate. A solar simulator was utilized with which the standard solar irradiation can be created in laboratory conditions. The fill factors as well as overall performance efficiencies of the these cells are quite low < 1.0%,.
- Full Text:
- Date Issued: 2013
- Authors: Caga, Noloyiso
- Date: 2013
- Subjects: Dye-sensitized solar cells , Acetonitrile , Electrochemistry , Spectrum analysis
- Language: English
- Type: Thesis , Masters , MSc (Chemistry)
- Identifier: vital:11341 , http://hdl.handle.net/10353/d1016069 , Dye-sensitized solar cells , Acetonitrile , Electrochemistry , Spectrum analysis
- Description: In this study a presentation of the technology behind dye-sensitized solar cells, their design as well as the role of the different parts of the cell. The characterization of the cell is divided into four sections namely: the characterization of the paste required to make the TiO2 film and its optical properties using SEM-EDX and XRD analytical techniques; Analysis of the various absorptions of three Ru-based dyes using UV-Vis spectroscopy, Photoluminescence and Fourier Transform Infra-Red spectroscopy; the characterization and the analyses of the entire cell using Electrochemical Impedance Spectroscopy. The nine cells were prepared by examining RuL2(CN)2 , RuL2(NCS)2 or N3 dye and RuL2(NCS)2 TBA+ or N719 dye. [L = 2,2'-bipyridyl-4,4'-dicarboxylic acid ;TBA = tetra-butyl ammonium] were combined with three electrolytes namely: Z–150 , AN–50 and PN–50. The Iodolyte PN–50 is an iodide based low viscosity electrolyte with 50 mM of tri-iodide dissolved in a solvent called propionitrile (PN). The Iodolyte AN–50 is an iodide based low viscosity electrolyte with 50 mM of tri-iodide dissolved in a solvent called acetonitrile (AN). The Iodolyte Z–150 is an iodide based low viscosity electrolyte with 150 mM of tri-iodide dissolved in a solvent called 3-methoxypropionitrile (MPN) and with additives such an ionic liquid, malkylbenziimidazole and guanidine thiocyanate. A solar simulator was utilized with which the standard solar irradiation can be created in laboratory conditions. The fill factors as well as overall performance efficiencies of the these cells are quite low < 1.0%,.
- Full Text:
- Date Issued: 2013
The contribution of local economic development funded projects in job creation and poverty eradication in Alfred Nzo district municipality
- Authors: Walaza, Kanyiso
- Date: 2013
- Subjects: Economic development projects -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape , Job creation -- Government policy -- South Africa , Municipal services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9180 , http://hdl.handle.net/10948/d1020146
- Description: Job creation and poverty eradication have been the top priority of the South African government over the past few years and continues to be on the agenda. The government is making numerous efforts to aggressively address poverty levels and create jobs. In 1994 the African National Congress (ANC) led government inherited an economy that had glaring disparities. Most of the important economic resources of the country are concentrated in urban areas, while very few economic activities and resources are found in the rural areas. While about 70% of the country’s poorest people live in rural areas, the abundance of economic resources in towns and cities has led to minimal growth taking place in rural areas. High poverty levels continue to manifest itself in various forms and shapes in communities. The negative effects of unemployment continue to threaten our societal well-being and stability. It is evident that in poverty stricken communities there are limited economic development opportunities and have thus become trapped in a poverty cycle, and economic growth is the only sustainable approach of addressing poverty and unemployment. Local economic development (LED) is but one intervention that could be used to create jobs and eradicate poverty at a given locality. LED has been regarded as an approach towards economic development and growth whereby local people are encouraged to work in collaboration in order to achieve sustainable economic growth, bringing economic benefits and improved quality of life for all community members in a municipal area. LED is an intervention solely based at a local level being driven by local people to realise economic benefits that would improve their quality of life. A qualitative study was conducted at Alfred Nzo District Municipality to assess the contribution of LED on job creation and poverty eradication. The target population included LED managers, Project Practitioners, LED Project Beneficiaries, LED Portfolio Councillors in the Alfred Nzo District Municipality and its Local Municipalities as well as relevant sector departments and Public Entities. The study examined the contribution of LED funded projects in job creation and poverty eradication. The project also assessed the problems, issues and challenges in LED and how they are being addressed. The study found that the implementation of LED in Alfred Nzo continues to be ineffective and confronted with numerous challenges. LED has been viewed as one of the tools for job creation targeted at unskilled and unemployed members of the community. Municipalities seem to be under utilising the Municipal Infrastructure Grant (MIG) and Equitable Share for funding the LED programme. In most municipalities LED is still regarded as an unfunded mandate. Most municipalities rely heavily on grant funding from sector departments and state owned enterprises for LED. A point of concern is the lack of regular and structured discussions on LED issues within municipalities which continue to re-enforce uncoordinated planning, insufficient budgeting and poor implementation of programmes within the municipality. The study noted serious skills shortages within the project beneficiaries which hamper effective implementation of LED projects. These skills include financial management, project management, conflict resolution and business management. These are core skills for the sound and viability of management of LED projects. Access to markets has been raised as an on-going concern for LED practitioners. It is recommended that a change is made from project-based LED to a business-based approach in LED. This would require all LED projects to be registered business entities, be liable for tax and require them to produce sound business plans before receiving grant funding.
- Full Text:
- Date Issued: 2013
- Authors: Walaza, Kanyiso
- Date: 2013
- Subjects: Economic development projects -- South Africa -- Eastern Cape , Economic development -- South Africa -- Eastern Cape , Poverty -- Government policy -- South Africa -- Eastern Cape , Job creation -- Government policy -- South Africa , Municipal services -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9180 , http://hdl.handle.net/10948/d1020146
- Description: Job creation and poverty eradication have been the top priority of the South African government over the past few years and continues to be on the agenda. The government is making numerous efforts to aggressively address poverty levels and create jobs. In 1994 the African National Congress (ANC) led government inherited an economy that had glaring disparities. Most of the important economic resources of the country are concentrated in urban areas, while very few economic activities and resources are found in the rural areas. While about 70% of the country’s poorest people live in rural areas, the abundance of economic resources in towns and cities has led to minimal growth taking place in rural areas. High poverty levels continue to manifest itself in various forms and shapes in communities. The negative effects of unemployment continue to threaten our societal well-being and stability. It is evident that in poverty stricken communities there are limited economic development opportunities and have thus become trapped in a poverty cycle, and economic growth is the only sustainable approach of addressing poverty and unemployment. Local economic development (LED) is but one intervention that could be used to create jobs and eradicate poverty at a given locality. LED has been regarded as an approach towards economic development and growth whereby local people are encouraged to work in collaboration in order to achieve sustainable economic growth, bringing economic benefits and improved quality of life for all community members in a municipal area. LED is an intervention solely based at a local level being driven by local people to realise economic benefits that would improve their quality of life. A qualitative study was conducted at Alfred Nzo District Municipality to assess the contribution of LED on job creation and poverty eradication. The target population included LED managers, Project Practitioners, LED Project Beneficiaries, LED Portfolio Councillors in the Alfred Nzo District Municipality and its Local Municipalities as well as relevant sector departments and Public Entities. The study examined the contribution of LED funded projects in job creation and poverty eradication. The project also assessed the problems, issues and challenges in LED and how they are being addressed. The study found that the implementation of LED in Alfred Nzo continues to be ineffective and confronted with numerous challenges. LED has been viewed as one of the tools for job creation targeted at unskilled and unemployed members of the community. Municipalities seem to be under utilising the Municipal Infrastructure Grant (MIG) and Equitable Share for funding the LED programme. In most municipalities LED is still regarded as an unfunded mandate. Most municipalities rely heavily on grant funding from sector departments and state owned enterprises for LED. A point of concern is the lack of regular and structured discussions on LED issues within municipalities which continue to re-enforce uncoordinated planning, insufficient budgeting and poor implementation of programmes within the municipality. The study noted serious skills shortages within the project beneficiaries which hamper effective implementation of LED projects. These skills include financial management, project management, conflict resolution and business management. These are core skills for the sound and viability of management of LED projects. Access to markets has been raised as an on-going concern for LED practitioners. It is recommended that a change is made from project-based LED to a business-based approach in LED. This would require all LED projects to be registered business entities, be liable for tax and require them to produce sound business plans before receiving grant funding.
- Full Text:
- Date Issued: 2013
The contribution of trees to local livelihoods in urban areas
- Authors: Kaoma, Humphrey
- Date: 2013
- Subjects: Trees in cities - -South Africa , Urban ecology (Sociology) -- South Africa , Poverty -- South Africa , Urban forestry -- South Africa , Urban poor -- South Africa , Natural resources -- South Africa , Human-plant relationships -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4734 , http://hdl.handle.net/10962/d1003911 , Trees in cities - -South Africa , Urban ecology (Sociology) -- South Africa , Poverty -- South Africa , Urban forestry -- South Africa , Urban poor -- South Africa , Natural resources -- South Africa , Human-plant relationships -- South Africa
- Description: Trees in natural forests are widely known for their essential contribution to rural livelihoods in developing countries, providing both consumptive and non-consumptive products to rural inhabitants. These benefits are also obtained from trees in urban forests and used by urban households. In the past decades, the role of urban trees to urban livelihoods, municipalities, local and global environment has often been overlooked by researchers and development agencies, and hence are poorly documented, especially in Africa. In South Africa, the increase in urbanisation and urban poverty means many urban residents are expected to be dependent on trees and tree products from homesteads, neighbourhoods and edges of towns. There is however a paucity of literature on the potential of trees in sustaining livelihoods and poverty alleviation in urban areas. This study determined the magnitude and nature of the direct contribution of trees and tree products to local livelihoods in different urban residential areas (informal, Reconstruction and Development Programme (RDP), and township) in three South African towns (Tzaneen, Bela Bela and Zeerust) which cover a rainfall gradient from relatively higher (775 mm p.a.) to low (575 mm p.a.). The results showed that most (90%) households had an interest in planting and managing trees on homesteads, given the high proportion (71%) of residents who had planted trees on their homesteads. The abundance of trees followed the moisture gradient, with Tzaneen having a larger share (46.4%) of trees, followed by Bela Bela (27.5%) and Zeerust (26.1%). Larger plots in the informal residential area accounted for the larger proportion (42.8%) of trees on homesteads, followed by the township (32.9%) and RDP households being the least because they were recently established. Tree density was also higher in the high rainfall town but the pattern did not follow the moisture gradient between Bela Bela and Zeerust due to little rainfall difference. However, tree density across residential areas was similar to the proportion of trees on homesteads in residential areas. The most common tree species were alien, and mainly exotic fruit trees made up two-thirds of the trees encountered. Most households collected various products from urban trees, particularly fuelwood, from edges of towns. This was especially by households with lower cash income. However, fruits were collected from homesteads regardless of the wealth status. Tree products had a significant contribution to the total annual household income, with fuelwood alone contributing up to R5 663 per household per annum, equivalent to two-three month household cash income. Tree products added 20% to total household income, which represents the amount of money households save by collecting tree products for free. Therefore, trees within and around urban areas contribute significantly to livelihoods and reduce poverty in urban areas. There is need therefore to encourage urban residents to plant trees on homesteads and policy makers to come up with policies that promote sustainable harvesting of tree products from areas surrounding urban areas.
- Full Text:
- Date Issued: 2013
- Authors: Kaoma, Humphrey
- Date: 2013
- Subjects: Trees in cities - -South Africa , Urban ecology (Sociology) -- South Africa , Poverty -- South Africa , Urban forestry -- South Africa , Urban poor -- South Africa , Natural resources -- South Africa , Human-plant relationships -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4734 , http://hdl.handle.net/10962/d1003911 , Trees in cities - -South Africa , Urban ecology (Sociology) -- South Africa , Poverty -- South Africa , Urban forestry -- South Africa , Urban poor -- South Africa , Natural resources -- South Africa , Human-plant relationships -- South Africa
- Description: Trees in natural forests are widely known for their essential contribution to rural livelihoods in developing countries, providing both consumptive and non-consumptive products to rural inhabitants. These benefits are also obtained from trees in urban forests and used by urban households. In the past decades, the role of urban trees to urban livelihoods, municipalities, local and global environment has often been overlooked by researchers and development agencies, and hence are poorly documented, especially in Africa. In South Africa, the increase in urbanisation and urban poverty means many urban residents are expected to be dependent on trees and tree products from homesteads, neighbourhoods and edges of towns. There is however a paucity of literature on the potential of trees in sustaining livelihoods and poverty alleviation in urban areas. This study determined the magnitude and nature of the direct contribution of trees and tree products to local livelihoods in different urban residential areas (informal, Reconstruction and Development Programme (RDP), and township) in three South African towns (Tzaneen, Bela Bela and Zeerust) which cover a rainfall gradient from relatively higher (775 mm p.a.) to low (575 mm p.a.). The results showed that most (90%) households had an interest in planting and managing trees on homesteads, given the high proportion (71%) of residents who had planted trees on their homesteads. The abundance of trees followed the moisture gradient, with Tzaneen having a larger share (46.4%) of trees, followed by Bela Bela (27.5%) and Zeerust (26.1%). Larger plots in the informal residential area accounted for the larger proportion (42.8%) of trees on homesteads, followed by the township (32.9%) and RDP households being the least because they were recently established. Tree density was also higher in the high rainfall town but the pattern did not follow the moisture gradient between Bela Bela and Zeerust due to little rainfall difference. However, tree density across residential areas was similar to the proportion of trees on homesteads in residential areas. The most common tree species were alien, and mainly exotic fruit trees made up two-thirds of the trees encountered. Most households collected various products from urban trees, particularly fuelwood, from edges of towns. This was especially by households with lower cash income. However, fruits were collected from homesteads regardless of the wealth status. Tree products had a significant contribution to the total annual household income, with fuelwood alone contributing up to R5 663 per household per annum, equivalent to two-three month household cash income. Tree products added 20% to total household income, which represents the amount of money households save by collecting tree products for free. Therefore, trees within and around urban areas contribute significantly to livelihoods and reduce poverty in urban areas. There is need therefore to encourage urban residents to plant trees on homesteads and policy makers to come up with policies that promote sustainable harvesting of tree products from areas surrounding urban areas.
- Full Text:
- Date Issued: 2013
The criminalization of HIV/AIDS : a comparative analysis
- Authors: Myburgh, Rene
- Date: 2013
- Subjects: AIDS (Disease) -- Law and legislation -- South Africa , Sexually transmitted diseases -- Law and legislation -- South Africa. , HIV-positive persons -- Legal status, laws, etc. -- South Africa , Liability (Law) -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10185 , http://hdl.handle.net/10948/d1020754
- Description: The Human Immunodeficiency Virus (HIV)1 and the Acquired Immunodeficiency Syndrome (AIDS)2 have become a global epidemic. With an average of 35.3 million people infected with the virus worldwide, countries are desperate to curb HIV infections.3 Most HIV positive men, women and children are found in Sub-Saharan Africa.4 In an attempt to fight HIV/AIDS, some countries have opted for an approach of criminalization, where it is a crime to infect or expose another person to the virus.5 Other countries, such as South Africa, have chosen to avoid the criminalization approach, and to focus rather on public health schemes that can assist in the prevention of transmission. The United Nations (UN) has stated that overly broad application of criminal law to HIV raises serious human rights and public health concerns.7 Because of these concerns, the Joint United Nations Programme on HIV/AIDS (UNAIDS) has urged states to limit application of criminal law to HIV-related cases.8 Furthermore, UNAIDS has urged states to rather employ scientifically proven methods to prevent HIV transmission. This treatise will set out the laws adopted by Canada, Zimbabwe, the United Kingdom, New Zealand and South Africa. Out of all five countries, South Africa is the only country that does not criminalize HIV transmission or exposure.10 In setting out the common law, statute law, case law as well as academic considerations, this treatise will attempt to identify trends in the current criminalization of HIV climate. In addition to setting out the law in the five countries, this treatise seeks to show that South Africa is one of the few countries with a developed legal system to shy away from criminalization. This treatise also seeks to establish whether South Africa’s approach is a suitable option for the country, considering it boasts the highest HIV infection rate in the world.
- Full Text:
- Date Issued: 2013
- Authors: Myburgh, Rene
- Date: 2013
- Subjects: AIDS (Disease) -- Law and legislation -- South Africa , Sexually transmitted diseases -- Law and legislation -- South Africa. , HIV-positive persons -- Legal status, laws, etc. -- South Africa , Liability (Law) -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10185 , http://hdl.handle.net/10948/d1020754
- Description: The Human Immunodeficiency Virus (HIV)1 and the Acquired Immunodeficiency Syndrome (AIDS)2 have become a global epidemic. With an average of 35.3 million people infected with the virus worldwide, countries are desperate to curb HIV infections.3 Most HIV positive men, women and children are found in Sub-Saharan Africa.4 In an attempt to fight HIV/AIDS, some countries have opted for an approach of criminalization, where it is a crime to infect or expose another person to the virus.5 Other countries, such as South Africa, have chosen to avoid the criminalization approach, and to focus rather on public health schemes that can assist in the prevention of transmission. The United Nations (UN) has stated that overly broad application of criminal law to HIV raises serious human rights and public health concerns.7 Because of these concerns, the Joint United Nations Programme on HIV/AIDS (UNAIDS) has urged states to limit application of criminal law to HIV-related cases.8 Furthermore, UNAIDS has urged states to rather employ scientifically proven methods to prevent HIV transmission. This treatise will set out the laws adopted by Canada, Zimbabwe, the United Kingdom, New Zealand and South Africa. Out of all five countries, South Africa is the only country that does not criminalize HIV transmission or exposure.10 In setting out the common law, statute law, case law as well as academic considerations, this treatise will attempt to identify trends in the current criminalization of HIV climate. In addition to setting out the law in the five countries, this treatise seeks to show that South Africa is one of the few countries with a developed legal system to shy away from criminalization. This treatise also seeks to establish whether South Africa’s approach is a suitable option for the country, considering it boasts the highest HIV infection rate in the world.
- Full Text:
- Date Issued: 2013
The criterion of justifiability as a ground for review following Sidumo v Rustenburg Platinum Mines (2007) 12 BLLR 1097 (CC)
- Fischat, Herbert Robert James Falconer
- Authors: Fischat, Herbert Robert James Falconer
- Date: 2013
- Subjects: Arbitration, Industrial -- South Africa , udicial review -- South Africa , Dispute resolution (Law) -- South Africa , Mineral industries -- South Africa -- Employees , Conflict of laws -- Labor laws and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10246 , http://hdl.handle.net/10948/d1019792
- Description: This treatise will focus on the review of labour arbitration awards provided for under the oversight of the Commission for Conciliation, Mediation and Arbitration (CCMA), bargaining councils, statutory councils, accredited private agencies and approved private arbitration tribunals. The general grounds of review applicable to the arbitration awards of the different bodies are set out. Thereafter the case of Carephone (Pty) Limited v Marcus NO & others (1998) 19 ILJ 1452 (LAC) is analysed and the core principles pertaining to the justifiability test are clarified for the first time in the forum of the Labour Appeal Court. The judicial rationale for the relevance and applicability of the test to CCMA arbitration proceedings and criticisms of the test are examined. The justifiability tests are only applicable to review proceedings in CCMA matters and not available to private arbitration review matters. There are however three approaches which are being suggested for the application of the justifiability tests to private arbitration review. Firstly, it is suggested that the Arbitration Act could be interpreted to include the justifiability test under the statutory review grounds. Secondly, the arbitration agreements could be interpreted to include an implied term that the arbitrator is under a duty to give justifiable awards. Finally, it can be submitted that the law should be developed by reading into all arbitration agreements the ability to arbitrators to give justifiable awards. Since the judgment of Sidumo v Rustenburg Platinum Mines [2007] 12 BLLR 1097 (CC) various critical questions arose in relation to the interpretation and application for the purpose of dealing with subsequent review applications. Firstly, this research paper will seek to establish whether the courts in subsequent matters to the Sidumo judgment have interpreted reasonableness as a test or ground for review. Secondly the research paper will scrutinise case law whether the reviewing court is entitled to rely on and consider reasons other than those provided for by the commissioner in his award to determine inter alia, the reasonableness of his decision arrived at. The Constitutional Court in the Sidumo case rejected the so-called employer’s test, stating that ultimately the commissioner’s sense of fairness is what must prevail and not the employer’s view. Consequently an impartial determination whether or not a dismissal was fair is likely to promote labour peace amongst the labour force. The test arrived at by the Constitutional Court in the Sidumo case for determining whether a decision or arbitration award of a CCMA commissioner is reasonable, is a stringent test that will ensure that such awards are not easily interfered with. The question to be asked in determining whether there has been compliance with the standard is whether the decision of the commissioner is one which a reasonable decision maker could have reached. This approach will underpin the primary objectives of the Labour Relations Act which is the effective resolution of disputes. This finding will be apparent from important cases decided and discussed after the Sidumo landmark ruling.
- Full Text:
- Date Issued: 2013
- Authors: Fischat, Herbert Robert James Falconer
- Date: 2013
- Subjects: Arbitration, Industrial -- South Africa , udicial review -- South Africa , Dispute resolution (Law) -- South Africa , Mineral industries -- South Africa -- Employees , Conflict of laws -- Labor laws and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10246 , http://hdl.handle.net/10948/d1019792
- Description: This treatise will focus on the review of labour arbitration awards provided for under the oversight of the Commission for Conciliation, Mediation and Arbitration (CCMA), bargaining councils, statutory councils, accredited private agencies and approved private arbitration tribunals. The general grounds of review applicable to the arbitration awards of the different bodies are set out. Thereafter the case of Carephone (Pty) Limited v Marcus NO & others (1998) 19 ILJ 1452 (LAC) is analysed and the core principles pertaining to the justifiability test are clarified for the first time in the forum of the Labour Appeal Court. The judicial rationale for the relevance and applicability of the test to CCMA arbitration proceedings and criticisms of the test are examined. The justifiability tests are only applicable to review proceedings in CCMA matters and not available to private arbitration review matters. There are however three approaches which are being suggested for the application of the justifiability tests to private arbitration review. Firstly, it is suggested that the Arbitration Act could be interpreted to include the justifiability test under the statutory review grounds. Secondly, the arbitration agreements could be interpreted to include an implied term that the arbitrator is under a duty to give justifiable awards. Finally, it can be submitted that the law should be developed by reading into all arbitration agreements the ability to arbitrators to give justifiable awards. Since the judgment of Sidumo v Rustenburg Platinum Mines [2007] 12 BLLR 1097 (CC) various critical questions arose in relation to the interpretation and application for the purpose of dealing with subsequent review applications. Firstly, this research paper will seek to establish whether the courts in subsequent matters to the Sidumo judgment have interpreted reasonableness as a test or ground for review. Secondly the research paper will scrutinise case law whether the reviewing court is entitled to rely on and consider reasons other than those provided for by the commissioner in his award to determine inter alia, the reasonableness of his decision arrived at. The Constitutional Court in the Sidumo case rejected the so-called employer’s test, stating that ultimately the commissioner’s sense of fairness is what must prevail and not the employer’s view. Consequently an impartial determination whether or not a dismissal was fair is likely to promote labour peace amongst the labour force. The test arrived at by the Constitutional Court in the Sidumo case for determining whether a decision or arbitration award of a CCMA commissioner is reasonable, is a stringent test that will ensure that such awards are not easily interfered with. The question to be asked in determining whether there has been compliance with the standard is whether the decision of the commissioner is one which a reasonable decision maker could have reached. This approach will underpin the primary objectives of the Labour Relations Act which is the effective resolution of disputes. This finding will be apparent from important cases decided and discussed after the Sidumo landmark ruling.
- Full Text:
- Date Issued: 2013
The deductibility of losses incurred by a taxpayer as a result of senior employee theft, fraud or embezzlement
- Authors: Bux, Fardeen
- Date: 2013
- Subjects: Customs administration -- Officials and employees , Employee theft -- South Africa , Customs inspection -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:8964 , http://hdl.handle.net/10948/d1020608
- Description: SARS has issued a draft interpretation note dealing with the deductibility of expenditure and losses arising from embezzlement and theft by employees noting that it is not prepared to accept, as a general proposition, that embezzlement and theft by senior managers have become a risk which is inseparable from business. There is however another view that is in direct contradiction with SARS. An analysis of global fraud surveys reveal that senior employee fraud is on the increase. In South Africa, criminal cases against senior employees in the private and public sector indicate that their behaviour can lead to an expectation of theft, fraud or embezzlement at that level of employees. The tests developed by the courts for the deduction of expenditure or losses in terms of the general deduction formula require that such expenditure or loss be attached to the performance of a business operation bona fide performed for the purpose of earning income and will be deductible whether such expenditure or losses are necessary for its performance or attached to it by chance. It is submitted that the increase in fraud and behaviour of senior employees noted in the criminal courts have resulted in a change in the economic environment supporting the contention that theft, fraud or embezzlement are an inherent risk to business in South Africa. In addition, global precedence supports the view that senior employee defalcations are deductible but only to the extent that the perpetrator is not in a proprietor or shareholder role. SARS therefore appears to be turning a blind eye to the risk of theft, fraud or embezzlement by senior employees but there is sufficient evidence to support a taxpayer wishing to claim a deduction for such loss. In light of international precedence, National Treasury should enact legislation allowing a deduction or alternatively, SARS should align its view with such precedence.
- Full Text:
- Date Issued: 2013
- Authors: Bux, Fardeen
- Date: 2013
- Subjects: Customs administration -- Officials and employees , Employee theft -- South Africa , Customs inspection -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:8964 , http://hdl.handle.net/10948/d1020608
- Description: SARS has issued a draft interpretation note dealing with the deductibility of expenditure and losses arising from embezzlement and theft by employees noting that it is not prepared to accept, as a general proposition, that embezzlement and theft by senior managers have become a risk which is inseparable from business. There is however another view that is in direct contradiction with SARS. An analysis of global fraud surveys reveal that senior employee fraud is on the increase. In South Africa, criminal cases against senior employees in the private and public sector indicate that their behaviour can lead to an expectation of theft, fraud or embezzlement at that level of employees. The tests developed by the courts for the deduction of expenditure or losses in terms of the general deduction formula require that such expenditure or loss be attached to the performance of a business operation bona fide performed for the purpose of earning income and will be deductible whether such expenditure or losses are necessary for its performance or attached to it by chance. It is submitted that the increase in fraud and behaviour of senior employees noted in the criminal courts have resulted in a change in the economic environment supporting the contention that theft, fraud or embezzlement are an inherent risk to business in South Africa. In addition, global precedence supports the view that senior employee defalcations are deductible but only to the extent that the perpetrator is not in a proprietor or shareholder role. SARS therefore appears to be turning a blind eye to the risk of theft, fraud or embezzlement by senior employees but there is sufficient evidence to support a taxpayer wishing to claim a deduction for such loss. In light of international precedence, National Treasury should enact legislation allowing a deduction or alternatively, SARS should align its view with such precedence.
- Full Text:
- Date Issued: 2013
The determinants of corporate entrepreneurship for firms in adventure tourism sector in the Eastern Cape Province: South Africa
- Authors: Chigamba, Cleopas
- Date: 2013
- Subjects: Organizational change -- Management , Entrepreneurship , Industrial management
- Language: English
- Type: Thesis , Masters , M Com (Business Management)
- Identifier: vital:11326 , http://hdl.handle.net/10353/d1015312 , Organizational change -- Management , Entrepreneurship , Industrial management
- Description: Tourism has been acknowledged for the past decade as one of the leading driving forces for economic development in post-apartheid South Africa (Nel & Binns, 2002:189). The objective of this study was to investigate the determinants of corporate entrepreneurship for firms in adventure tourism sector in the Eastern Cape Province; South Africa. The population for the study were firms registered with the Nelson Mandela Bay Tourism Portal (NMBT) and the Dirty Boot Adventure South Africa. Convenience sampling method was used. Data was collected through the use of a self-administered questionnaire. For the purpose of data collection, one hundred and fourteen questions were identified through a thorough review of the literature. Principal component analysis was used to reduce the one hundred and fourteen questions to twelve factors namely: flat organisational structure, management support for intrapreneurship, vision and strategic intent, rewards / reinforcement and sponsorship, innovativeness and creativity, multi-disciplined teamwork and diversity, entrepreneurial leadership, resources and time, strong customer orientation, continuous cross-functional learning, tolerance of risk, mistakes and failure and work discretion and discretionary time. Data was analysed using descriptive statistics, Pearson’s correlation, T-test and ANOVA. Cohen`s (d-value) was used to measure the effect size of differences for t-statistics. The Cronbach’s alpha was used to test the reliability of the scales. The results showed significant positive relationships between the twelve factors and corporate entrepreneurship. Recommendations included an integrated framework that could assist adventure tour operator to establish and sustain corporate entrepreneurship within this sector.
- Full Text:
- Date Issued: 2013
- Authors: Chigamba, Cleopas
- Date: 2013
- Subjects: Organizational change -- Management , Entrepreneurship , Industrial management
- Language: English
- Type: Thesis , Masters , M Com (Business Management)
- Identifier: vital:11326 , http://hdl.handle.net/10353/d1015312 , Organizational change -- Management , Entrepreneurship , Industrial management
- Description: Tourism has been acknowledged for the past decade as one of the leading driving forces for economic development in post-apartheid South Africa (Nel & Binns, 2002:189). The objective of this study was to investigate the determinants of corporate entrepreneurship for firms in adventure tourism sector in the Eastern Cape Province; South Africa. The population for the study were firms registered with the Nelson Mandela Bay Tourism Portal (NMBT) and the Dirty Boot Adventure South Africa. Convenience sampling method was used. Data was collected through the use of a self-administered questionnaire. For the purpose of data collection, one hundred and fourteen questions were identified through a thorough review of the literature. Principal component analysis was used to reduce the one hundred and fourteen questions to twelve factors namely: flat organisational structure, management support for intrapreneurship, vision and strategic intent, rewards / reinforcement and sponsorship, innovativeness and creativity, multi-disciplined teamwork and diversity, entrepreneurial leadership, resources and time, strong customer orientation, continuous cross-functional learning, tolerance of risk, mistakes and failure and work discretion and discretionary time. Data was analysed using descriptive statistics, Pearson’s correlation, T-test and ANOVA. Cohen`s (d-value) was used to measure the effect size of differences for t-statistics. The Cronbach’s alpha was used to test the reliability of the scales. The results showed significant positive relationships between the twelve factors and corporate entrepreneurship. Recommendations included an integrated framework that could assist adventure tour operator to establish and sustain corporate entrepreneurship within this sector.
- Full Text:
- Date Issued: 2013
The development and assessment of sustained release nevirapine tablets
- Authors: Mwila, Chiluba
- Date: 2013
- Language: English
- Type: text , Thesis , Masters , MPharm
- Identifier: http://hdl.handle.net/10962/54667 , vital:26598
- Description: The use of antiretroviral (ARV) agents in the management of HIV/AIDS has significantly improved the lifestyle and wellbeing of patients. Despite the success that has been achieved with the use of ARV therapy, the occurrence of adverse effects and unpredictable bioavailability associated with most of these drugs remains a major concern. Nevirapine (NVP) is a non-nucleoside reverse transcriptase inhibitor (NNRTI) that is used in combination with other ARV compounds for the treatment of HIV-1 infections. It is also used for the prevention of mother to child transmission of the HIV-1 virus. NVP is a Biopharmaceutics Classification System (BCS) Class II compound. Although NVP exhibits good oral absorption, it induces self-metabolism leading to low and sometimes unpredictable bioavailability. NVP is commercially available as an immediate release and extended release dosage form, viz., Viramune® XR. Formulation of a generic sustained release (SR) dosage form for once daily dosing would result in delivery of constant amount of the drug to the circulation, reduce dose related adverse effects, improve patient compliance to medication and reduce the costs of therapy. A simple RP-HPLC method was developed and optimised using a central composite design approach. The method was validated using ICH guidelines and was found to be linear, precise, specific and accurate for the analysis of NVP both in bulk and dosage forms. Direct compression was used as the method of tablet manufacture. Different polymers were assessed for suitability as rate retarding polymers and included Methocel® K4M, Carbopol® 71G NF and Eudragit® RSPO. Powder blends were assessed for flow properties using the angle of repose, bulk and tapped density, Carr’s Compressibility index and Hausner’s ratio. The traditional approach of changing the amount of polymers and diluents systematically to achieve a desired NVP release profile was used for the development of a preliminary formulation. Response surface methodology was used for the optimisation of the formulation using a Box-Behnken quadratic design. Physical characteristics of the tablets such as thickness, weight, hardness, tensile strength and friability were assessed and the tablets passed Pharmacopoeial testing. NVP assay and content uniformity were assessed using a validated RP-HPLC method. Initially, USP Apparatus 2 was used to study NVP release over a 24 hour period and subsequently dissolution studies were performed using USP Apparatus 3 as it can be used to simulate GIT conditions. The dissolution profiles generated were used to determine the agitation rate for USP Apparatus 3 that would be equivalent to an agitation rate of 50 rpm when using USP Apparatus 2. The effect of the mesh screen pore size, buffer molarity strength and concentration of surfactant on NVP release were also investigated in order to select discriminatory dissolution test conditions for the test formulation. Dissolution profiles were compared to those of the commercially available Viramune® XR using the FDA recommended difference (f1) and similarity (f2) factors. The calculated values for f1 and f2 revealed that the dissolution profile for the optimised formulation that was identified was statistically similar to Viramune® XR. In vitro release data were fitted to different kinetic models to study the release kinetics of NVP. The overall mechanism of NVP release was best described using the Korsmeyer-Peppas diffusion exponent value, n. NVP release was found to be anomalous, implying that the release was influenced by a combination of diffusion, swelling and polymer chain relaxation. The Hixson-Crowell model revealed that there was constant change in surface area of the dosage form suggesting that erosion and swelling were significant factors affecting NVP release from the hydrophilic matrix technology. The release kinetics data were also used to design the optimised formulation. Tablets manufactured using the optimised formulation were subjected to water uptake and erosion studies and the results revealed that swelling and erosion occur simultaneously. The effects of pH and molarity on the swelling and erosion of the tablets were also investigated. The data suggest that increase in pH resulted in a slight increase in swelling while an increase in molarity did not have a significant effect on swelling. The change in pH did not have a significant effect on erosion while an increase in molarity strength resulted in a decrease in matrix erosion. The effect of HPMC grade on swelling, erosion and NVP release revealed that the grade of HPMC used had a significant effect on NVP release, with the release rate decreasing, swelling increasing and erosion decreasing as the viscosity of the HPMC grade increased. The effect of the particle size of MCC on NVP release was also studied by manufacturing tablets containing different grades of MCC and these studies revealed that particle size did not appear to have a significant effect on NVP release. Similarly the use of different types of lactose did not appear to have a significant impact on NVP release. In conclusion a sustained release NVP tablet formulation that has the potential for further development and optimisation has been developed, assessed and manufactured successfully and has been shown to exhibit similar dissolution behaviour to Viramune® XR, a commercially available NVP extended release product.
- Full Text:
- Date Issued: 2013
- Authors: Mwila, Chiluba
- Date: 2013
- Language: English
- Type: text , Thesis , Masters , MPharm
- Identifier: http://hdl.handle.net/10962/54667 , vital:26598
- Description: The use of antiretroviral (ARV) agents in the management of HIV/AIDS has significantly improved the lifestyle and wellbeing of patients. Despite the success that has been achieved with the use of ARV therapy, the occurrence of adverse effects and unpredictable bioavailability associated with most of these drugs remains a major concern. Nevirapine (NVP) is a non-nucleoside reverse transcriptase inhibitor (NNRTI) that is used in combination with other ARV compounds for the treatment of HIV-1 infections. It is also used for the prevention of mother to child transmission of the HIV-1 virus. NVP is a Biopharmaceutics Classification System (BCS) Class II compound. Although NVP exhibits good oral absorption, it induces self-metabolism leading to low and sometimes unpredictable bioavailability. NVP is commercially available as an immediate release and extended release dosage form, viz., Viramune® XR. Formulation of a generic sustained release (SR) dosage form for once daily dosing would result in delivery of constant amount of the drug to the circulation, reduce dose related adverse effects, improve patient compliance to medication and reduce the costs of therapy. A simple RP-HPLC method was developed and optimised using a central composite design approach. The method was validated using ICH guidelines and was found to be linear, precise, specific and accurate for the analysis of NVP both in bulk and dosage forms. Direct compression was used as the method of tablet manufacture. Different polymers were assessed for suitability as rate retarding polymers and included Methocel® K4M, Carbopol® 71G NF and Eudragit® RSPO. Powder blends were assessed for flow properties using the angle of repose, bulk and tapped density, Carr’s Compressibility index and Hausner’s ratio. The traditional approach of changing the amount of polymers and diluents systematically to achieve a desired NVP release profile was used for the development of a preliminary formulation. Response surface methodology was used for the optimisation of the formulation using a Box-Behnken quadratic design. Physical characteristics of the tablets such as thickness, weight, hardness, tensile strength and friability were assessed and the tablets passed Pharmacopoeial testing. NVP assay and content uniformity were assessed using a validated RP-HPLC method. Initially, USP Apparatus 2 was used to study NVP release over a 24 hour period and subsequently dissolution studies were performed using USP Apparatus 3 as it can be used to simulate GIT conditions. The dissolution profiles generated were used to determine the agitation rate for USP Apparatus 3 that would be equivalent to an agitation rate of 50 rpm when using USP Apparatus 2. The effect of the mesh screen pore size, buffer molarity strength and concentration of surfactant on NVP release were also investigated in order to select discriminatory dissolution test conditions for the test formulation. Dissolution profiles were compared to those of the commercially available Viramune® XR using the FDA recommended difference (f1) and similarity (f2) factors. The calculated values for f1 and f2 revealed that the dissolution profile for the optimised formulation that was identified was statistically similar to Viramune® XR. In vitro release data were fitted to different kinetic models to study the release kinetics of NVP. The overall mechanism of NVP release was best described using the Korsmeyer-Peppas diffusion exponent value, n. NVP release was found to be anomalous, implying that the release was influenced by a combination of diffusion, swelling and polymer chain relaxation. The Hixson-Crowell model revealed that there was constant change in surface area of the dosage form suggesting that erosion and swelling were significant factors affecting NVP release from the hydrophilic matrix technology. The release kinetics data were also used to design the optimised formulation. Tablets manufactured using the optimised formulation were subjected to water uptake and erosion studies and the results revealed that swelling and erosion occur simultaneously. The effects of pH and molarity on the swelling and erosion of the tablets were also investigated. The data suggest that increase in pH resulted in a slight increase in swelling while an increase in molarity did not have a significant effect on swelling. The change in pH did not have a significant effect on erosion while an increase in molarity strength resulted in a decrease in matrix erosion. The effect of HPMC grade on swelling, erosion and NVP release revealed that the grade of HPMC used had a significant effect on NVP release, with the release rate decreasing, swelling increasing and erosion decreasing as the viscosity of the HPMC grade increased. The effect of the particle size of MCC on NVP release was also studied by manufacturing tablets containing different grades of MCC and these studies revealed that particle size did not appear to have a significant effect on NVP release. Similarly the use of different types of lactose did not appear to have a significant impact on NVP release. In conclusion a sustained release NVP tablet formulation that has the potential for further development and optimisation has been developed, assessed and manufactured successfully and has been shown to exhibit similar dissolution behaviour to Viramune® XR, a commercially available NVP extended release product.
- Full Text:
- Date Issued: 2013