Evaluation of some pseudomonas species isolated from Hogsback forest reserve for the production of antibacterial compounds
- Authors: Mkono, Yonela Pelokazi
- Date: 2017
- Subjects: Bacteriology -- South Africa -- Eastern Cape Pseudomonas
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/5961 , vital:29458
- Description: Pseudomonas species are Gram-negative bacteria most abundant in soil and water bodies, with the capacity to thrive in varied environments. They are largely associated with resistant pathogenic bacteria linked to human and plant diseases. Species such as Pseudomonas aeruginosa have been particularly targeted as case studies due to the extremity to which they pose a threat to human health. With more focus directed at using these species for biocontrol and bioremediation purposes, their role in bioactive compound production may be equally important. As the crisis on antimicrobial resistance still persists, the need for effective antimicrobial compounds is ever more urgent and solutions may possibly still be dormant in bacterial species whose potential has not been fully investigated. On a bid to source out potential antimicrobial compound producers, soil samples were collected from Hogback forest reserve in the province of the Eastern Cape, South Africa. For bacterial screening, M1 and R2A agar were used and the cultures grown at 37˚C for a period of seven days. After the presumed Pseudomonas species were identified, antimicrobial production was determined by submerged fermentation method using nutrient broth as media of choice. Active isolates were further studied to determine the optimum conditions which best facilitate for antimicrobial compound production, with parameters such as temperature (25˚C – 40˚C) and pH (4 – 9) considered. The role plasmids play in antimicrobial compound production was also investigated. Each isolate was grown in fermentation media containing Sodium dodecyl sulphate and Ethedium Bromide, at varying concentrations, to facilitate for plasmid curing. With each sample, distinct colonies were identified with varying pigmentations most dominant being a cream colour. The identity of the isolated strains was achieved through sequencing of 16S rDNA. Phylogenetic analysis showed that isolate A16 had 80 percent homology with Pseudomonas plecoglossicida strain P4 and share a close ancestor with isolates Y52 and Y81, also isolate Y89 showed a 90 percent homology with Pseudomonas sp. Co-11a. With the exception of isolate A16, the isolates which were active against Gram-negative bacteria lost activity as the screening processes continued. When looking at temperature variations, isolates Y81 and A16 were highly active with maximum activity observed at 35˚C while Y89 performed best at 25˚C and Y52 showed constant activity across all studied temperatures. The plasmids in all isolates were found to be 48.5 kb in size with the exception of isolate Y89 which was 20 kb. The plasmids were cured at concentrations of (1 mg/ml; 5 mg/ml; 7 mg/ml; 10 mg/ml; 11 mg/ml) SDS and (125 μg/ml; 6.5 μg/ml; 5μg/ml) EtBr. The curing process also showed changes in both the antimicrobial activity of the isolates as well as their physical characteristics. The isolates are the first reported Pseudomonas species from Hogsback forest reserve with the ability to produce antimicrobial compounds which are active against Gram-positive and Gram-negative bacteria. These mesophilic bacteria also show that plasmids do not pay any role in the production of antimicrobial compounds and that the biosynthesis genes are highly likely to be chromosomal borne meaning that the production cannot be linked to horizontal transfer of genes. Therefore, these isolated Pseudomonas species provide a potential reservoir of antimicrobial compounds which may play an important role in the antimicrobial resistance phenomenon.
- Full Text:
- Date Issued: 2017
- Authors: Mkono, Yonela Pelokazi
- Date: 2017
- Subjects: Bacteriology -- South Africa -- Eastern Cape Pseudomonas
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/5961 , vital:29458
- Description: Pseudomonas species are Gram-negative bacteria most abundant in soil and water bodies, with the capacity to thrive in varied environments. They are largely associated with resistant pathogenic bacteria linked to human and plant diseases. Species such as Pseudomonas aeruginosa have been particularly targeted as case studies due to the extremity to which they pose a threat to human health. With more focus directed at using these species for biocontrol and bioremediation purposes, their role in bioactive compound production may be equally important. As the crisis on antimicrobial resistance still persists, the need for effective antimicrobial compounds is ever more urgent and solutions may possibly still be dormant in bacterial species whose potential has not been fully investigated. On a bid to source out potential antimicrobial compound producers, soil samples were collected from Hogback forest reserve in the province of the Eastern Cape, South Africa. For bacterial screening, M1 and R2A agar were used and the cultures grown at 37˚C for a period of seven days. After the presumed Pseudomonas species were identified, antimicrobial production was determined by submerged fermentation method using nutrient broth as media of choice. Active isolates were further studied to determine the optimum conditions which best facilitate for antimicrobial compound production, with parameters such as temperature (25˚C – 40˚C) and pH (4 – 9) considered. The role plasmids play in antimicrobial compound production was also investigated. Each isolate was grown in fermentation media containing Sodium dodecyl sulphate and Ethedium Bromide, at varying concentrations, to facilitate for plasmid curing. With each sample, distinct colonies were identified with varying pigmentations most dominant being a cream colour. The identity of the isolated strains was achieved through sequencing of 16S rDNA. Phylogenetic analysis showed that isolate A16 had 80 percent homology with Pseudomonas plecoglossicida strain P4 and share a close ancestor with isolates Y52 and Y81, also isolate Y89 showed a 90 percent homology with Pseudomonas sp. Co-11a. With the exception of isolate A16, the isolates which were active against Gram-negative bacteria lost activity as the screening processes continued. When looking at temperature variations, isolates Y81 and A16 were highly active with maximum activity observed at 35˚C while Y89 performed best at 25˚C and Y52 showed constant activity across all studied temperatures. The plasmids in all isolates were found to be 48.5 kb in size with the exception of isolate Y89 which was 20 kb. The plasmids were cured at concentrations of (1 mg/ml; 5 mg/ml; 7 mg/ml; 10 mg/ml; 11 mg/ml) SDS and (125 μg/ml; 6.5 μg/ml; 5μg/ml) EtBr. The curing process also showed changes in both the antimicrobial activity of the isolates as well as their physical characteristics. The isolates are the first reported Pseudomonas species from Hogsback forest reserve with the ability to produce antimicrobial compounds which are active against Gram-positive and Gram-negative bacteria. These mesophilic bacteria also show that plasmids do not pay any role in the production of antimicrobial compounds and that the biosynthesis genes are highly likely to be chromosomal borne meaning that the production cannot be linked to horizontal transfer of genes. Therefore, these isolated Pseudomonas species provide a potential reservoir of antimicrobial compounds which may play an important role in the antimicrobial resistance phenomenon.
- Full Text:
- Date Issued: 2017
Exploring psycho-social effects of behaviour modification programmes on children with behavioural challenges : a case study of Gali Thembani Child and Youth Care Centre Queenstown Eastern Cape, South Africa
- Authors: Fulani, Anathi Simnikiwe
- Date: 2017
- Subjects: Social case work Behavior modification Behaviorism (Psychology)
- Language: English
- Type: Thesis , Masters , MSoc
- Identifier: http://hdl.handle.net/10353/9853 , vital:35072
- Description: This research study explored and examined the psycho-social effects of behaviour modification programmes on children with behavioural challenges, at Gali Thembani Child and Youth Care Centre, in the Eastern Cape Province. The study was premised by four objectives, firstly to investigate the effects of behaviour modification programmes on children, secondly to investigate the challenges faced by children who are on behaviour modification programmes, thirdly examine the support systems available from the social networks of the children, and lastly, to examine the intervention strategies provided by professionals. The researcher adopted a qualitative research method as it provides for an in-depth understanding of the research topic furthermore qualitative research provides for a more thick, descriptive, and detailed, interpersonal research findings which perfectly aliens with the psycho-social understandings and human centred research findings as compared to the more numerical and statistic producing results of a more quantitative study. The study employed an array of qualitative research methods including but not limited to in-depth interviews, open ended questions group discussions and sessions and observations. The study has been underpinned by both the social learning and behavioural theory respectively. The population in this study was made up of fifteen participants. The participants come from different towns in the Eastern Cape. The researcher has utilized a non-probability sampling method specifically purposive technique. The data was analysed using a qualitative approach in a comprehensive thematic way. A collection of psycho - social effects of behaviour modification programmes on children with behavioural challenges in Gali Thembani Child and Youth Care Centre were the study outcomes.
- Full Text: false
- Date Issued: 2017
- Authors: Fulani, Anathi Simnikiwe
- Date: 2017
- Subjects: Social case work Behavior modification Behaviorism (Psychology)
- Language: English
- Type: Thesis , Masters , MSoc
- Identifier: http://hdl.handle.net/10353/9853 , vital:35072
- Description: This research study explored and examined the psycho-social effects of behaviour modification programmes on children with behavioural challenges, at Gali Thembani Child and Youth Care Centre, in the Eastern Cape Province. The study was premised by four objectives, firstly to investigate the effects of behaviour modification programmes on children, secondly to investigate the challenges faced by children who are on behaviour modification programmes, thirdly examine the support systems available from the social networks of the children, and lastly, to examine the intervention strategies provided by professionals. The researcher adopted a qualitative research method as it provides for an in-depth understanding of the research topic furthermore qualitative research provides for a more thick, descriptive, and detailed, interpersonal research findings which perfectly aliens with the psycho-social understandings and human centred research findings as compared to the more numerical and statistic producing results of a more quantitative study. The study employed an array of qualitative research methods including but not limited to in-depth interviews, open ended questions group discussions and sessions and observations. The study has been underpinned by both the social learning and behavioural theory respectively. The population in this study was made up of fifteen participants. The participants come from different towns in the Eastern Cape. The researcher has utilized a non-probability sampling method specifically purposive technique. The data was analysed using a qualitative approach in a comprehensive thematic way. A collection of psycho - social effects of behaviour modification programmes on children with behavioural challenges in Gali Thembani Child and Youth Care Centre were the study outcomes.
- Full Text: false
- Date Issued: 2017
An exploration of curriculum reforms in public schools in the Eastern Cape Province : a case study of Umtata District (1994-2014)
- Authors: Daniel, Nokonwaba
- Date: 2017
- Subjects: Curriculum change -- South Africa -- Eastern Cape Education -- Curricula -- South Africa -- Eastern Cape Public schools -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , Public Administration
- Identifier: http://hdl.handle.net/10353/9132 , vital:34271
- Description: This research explores the effectiveness of curriculum reforms in Public schools in the Eastern Cape Province with specific reference to a case study of Umtata District (1994- 2014). The study was accomplished using the qualitative research method in which the views of 20 participants comprising of principals and teachers were explored about: How effective are the curriculum changes brought about by the democratic system of government in the South African education system? Which factors are limiting the effectiveness of the implementation of curriculum reforms in the public schools in the Eastern Cape Province? What are the effects of curriculum reforms on the performance of the public schools in the Eastern Cape Province? Which strategies can the Eastern Cape Department of Education adopt to improve the effectiveness of the curriculum reforms in the public schools in the Eastern Cape Province? Findings that some of the curriculum changes brought about by the Democratic System of Government in the South African Education System were associated with review and change of the language used in education and learning, technology, computer education and data handling. From this analysis of the interview findings, it is evident that curriculum reviews and change not only influenced the change of language policy in the South African education system to support diversity and multiculturalism, but also new technologies and science in teaching and learning. Even though it was evident from the responses of most of the teachers that enormous successes have been achieved, it also emerged from the findings that there have also been challenges and impediments. It emerged from the analysis of the interview findings that some of the factors limiting the effectiveness of curriculum effectiveness in the public schools in the Eastern Cape Province are associated with lack of resources, lack of skills, lack of text books, poor review and modifications of the syllabus, and poor consultation and involvement of relevant stakeholders. However, findings still revealed that as much as there are some limitations, the curriculum reviews and change undertaken since the 1994 democratic dispensation significantly influenced the improvement of the performance of the contemporary South African public education system. The analysis of the interview findings revealed the effects of curriculum reforms on the performance of the public schools in the Eastern Cape Province to be associated with improved pass rates, improved performance in science and data handling, and improved responsiveness to changing needs and demands of the contemporary world. Considering the findings of this study, it is argued that the directors in the Eastern Cape Department of Education must evaluate the decision to apply the following strategies to influence improvement of the successful implementation of the curriculum. Such strategies would involve situational analysis, curriculum and syllabus development, investment in relevant key success factors (skills, technology & infrastructure), teaching and learning methods, and measuring and improving. Future studies can still explore and develop a framework for measuring and improving the implementation of curriculum reform.
- Full Text:
- Date Issued: 2017
- Authors: Daniel, Nokonwaba
- Date: 2017
- Subjects: Curriculum change -- South Africa -- Eastern Cape Education -- Curricula -- South Africa -- Eastern Cape Public schools -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , Public Administration
- Identifier: http://hdl.handle.net/10353/9132 , vital:34271
- Description: This research explores the effectiveness of curriculum reforms in Public schools in the Eastern Cape Province with specific reference to a case study of Umtata District (1994- 2014). The study was accomplished using the qualitative research method in which the views of 20 participants comprising of principals and teachers were explored about: How effective are the curriculum changes brought about by the democratic system of government in the South African education system? Which factors are limiting the effectiveness of the implementation of curriculum reforms in the public schools in the Eastern Cape Province? What are the effects of curriculum reforms on the performance of the public schools in the Eastern Cape Province? Which strategies can the Eastern Cape Department of Education adopt to improve the effectiveness of the curriculum reforms in the public schools in the Eastern Cape Province? Findings that some of the curriculum changes brought about by the Democratic System of Government in the South African Education System were associated with review and change of the language used in education and learning, technology, computer education and data handling. From this analysis of the interview findings, it is evident that curriculum reviews and change not only influenced the change of language policy in the South African education system to support diversity and multiculturalism, but also new technologies and science in teaching and learning. Even though it was evident from the responses of most of the teachers that enormous successes have been achieved, it also emerged from the findings that there have also been challenges and impediments. It emerged from the analysis of the interview findings that some of the factors limiting the effectiveness of curriculum effectiveness in the public schools in the Eastern Cape Province are associated with lack of resources, lack of skills, lack of text books, poor review and modifications of the syllabus, and poor consultation and involvement of relevant stakeholders. However, findings still revealed that as much as there are some limitations, the curriculum reviews and change undertaken since the 1994 democratic dispensation significantly influenced the improvement of the performance of the contemporary South African public education system. The analysis of the interview findings revealed the effects of curriculum reforms on the performance of the public schools in the Eastern Cape Province to be associated with improved pass rates, improved performance in science and data handling, and improved responsiveness to changing needs and demands of the contemporary world. Considering the findings of this study, it is argued that the directors in the Eastern Cape Department of Education must evaluate the decision to apply the following strategies to influence improvement of the successful implementation of the curriculum. Such strategies would involve situational analysis, curriculum and syllabus development, investment in relevant key success factors (skills, technology & infrastructure), teaching and learning methods, and measuring and improving. Future studies can still explore and develop a framework for measuring and improving the implementation of curriculum reform.
- Full Text:
- Date Issued: 2017
Effecting social justice during conciliation and CON-ARB processes conducted at the CCMA and bargaining councils
- Authors: Mtumtum, Lungisa Shadrack
- Date: 2017
- Subjects: South Africa -- Commission for Conciliation, Mediation, and Arbitration Mediation and conciliation, Industrial -- South Africa , Labor laws and legislation -- South Africa Labor disputes -- South Africa Collective bargaining -- South Africa Social justice -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/19245 , vital:28807
- Description: The primary purpose of this treatise is to reexamine the South African labour dispute resolution bodies to see if they live up to the legislation’s promise of promoting social justice in conciliation, arbitration and con-arb processes concluded by them. The study defines social justice and examines this term in relation to employment law. The promotion of social justice was reaffirmed by the International Labour Organisation in its 1944 Conference which was later incorporated into its Constitution. The study briefly reviews the importance of this conference of the 10 May 1944 in relation to promoting social justice. The study also examines the social justice in the context of South African employment laws by briefly analyzing each South African labour legislation and the Constitution. This analysis is based on the provisions of legislation and considers if the respective provisions promote social justice as required by the International Labour Organisation’s Constitution and later by the South African Constitution. In analyzing the Constitution, and other legislation like the; Employment Equity Act (EEA), and Labour Relations Act (LRA), the treatise examines certain cases that were determined under the legislation from social justice perspective. The Labour Relations Act 66 of 1995 represents one of the major reforms of the labour relations system in South Africa. It is guided by the Constitution in terms of promoting social justice. The LRA established the dispute resolution bodies that are mandated by the legislation to resolve labour disputes. The study examines the systems and the processes employed by these bodies mainly the Commission for Conciliation; Mediation and Arbitration (CCMA) and the Bargaining Councils to determine if these systems are promoting social justice as required by the legislation. In conducting this analysis the study considers not only the processes adopted but also the manner in which the relevant dispute resolution bodies market their services; their strategies and operational plans; and accessibility and more. The study further investigates the challenges that these bodies are faced with that have a negative impact on their responsibility to promote social justice. These challenges faced by society range from unemployment, the level of literacy and the growing inequality within South African society. They constantly pose a challenge and require these bodies to consistently devise means and strategies to overcome them. A limited comparative study is undertaken in order to determine whether South Africa can learn anything from another country. There are several countries that may have been chosen to conduct this study but the study considered the fact that it needs to look at the country without the sub-Saharan Africa. The country that shares a history similar to South Africa due to the fact that the social challenges faced by the South African society might be similar to those faced by the country chosen. In this research Namibia was chosen as a suitable country to determine whether there is something to learn from it or not. In conclusion it is submitted that South African legislation pertaining to labour dispute resolution needs to constantly evolve in order to promote social justice challenges of the time.
- Full Text:
- Date Issued: 2017
- Authors: Mtumtum, Lungisa Shadrack
- Date: 2017
- Subjects: South Africa -- Commission for Conciliation, Mediation, and Arbitration Mediation and conciliation, Industrial -- South Africa , Labor laws and legislation -- South Africa Labor disputes -- South Africa Collective bargaining -- South Africa Social justice -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/19245 , vital:28807
- Description: The primary purpose of this treatise is to reexamine the South African labour dispute resolution bodies to see if they live up to the legislation’s promise of promoting social justice in conciliation, arbitration and con-arb processes concluded by them. The study defines social justice and examines this term in relation to employment law. The promotion of social justice was reaffirmed by the International Labour Organisation in its 1944 Conference which was later incorporated into its Constitution. The study briefly reviews the importance of this conference of the 10 May 1944 in relation to promoting social justice. The study also examines the social justice in the context of South African employment laws by briefly analyzing each South African labour legislation and the Constitution. This analysis is based on the provisions of legislation and considers if the respective provisions promote social justice as required by the International Labour Organisation’s Constitution and later by the South African Constitution. In analyzing the Constitution, and other legislation like the; Employment Equity Act (EEA), and Labour Relations Act (LRA), the treatise examines certain cases that were determined under the legislation from social justice perspective. The Labour Relations Act 66 of 1995 represents one of the major reforms of the labour relations system in South Africa. It is guided by the Constitution in terms of promoting social justice. The LRA established the dispute resolution bodies that are mandated by the legislation to resolve labour disputes. The study examines the systems and the processes employed by these bodies mainly the Commission for Conciliation; Mediation and Arbitration (CCMA) and the Bargaining Councils to determine if these systems are promoting social justice as required by the legislation. In conducting this analysis the study considers not only the processes adopted but also the manner in which the relevant dispute resolution bodies market their services; their strategies and operational plans; and accessibility and more. The study further investigates the challenges that these bodies are faced with that have a negative impact on their responsibility to promote social justice. These challenges faced by society range from unemployment, the level of literacy and the growing inequality within South African society. They constantly pose a challenge and require these bodies to consistently devise means and strategies to overcome them. A limited comparative study is undertaken in order to determine whether South Africa can learn anything from another country. There are several countries that may have been chosen to conduct this study but the study considered the fact that it needs to look at the country without the sub-Saharan Africa. The country that shares a history similar to South Africa due to the fact that the social challenges faced by the South African society might be similar to those faced by the country chosen. In this research Namibia was chosen as a suitable country to determine whether there is something to learn from it or not. In conclusion it is submitted that South African legislation pertaining to labour dispute resolution needs to constantly evolve in order to promote social justice challenges of the time.
- Full Text:
- Date Issued: 2017
Contemporary Zambian art, conceptualism and the ‘global’ art world
- Authors: Mulenga, Andrew Mukuka
- Date: 2017
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: http://hdl.handle.net/10962/5187 , vital:20784
- Description: In Zambia, ‘contemporary art’ (as a category constructed by the European-dominated international art world), was introduced by the European settler community and continued within its preserve, remaining largely inaccessible to the indigenous community of Africans until Zambia’s independence in 1964. This thesis traces the integration of Africans into the contemporary art community and attributes the process, in part, to a small group of artists of European descent who played a significant role in engaging with Zambians, working side by side with them, subsequently influencing their art production and implicitly shaping the ways in which ‘Zambian’ art ‘ought to’ look for decades to come. The research traces the early days of contemporary art practice in Zambia to the Lusaka Art Society and Art Centre Foundation that was founded and run by an all-settler group of formally trained artists with a particular inclination towards sculpture and painting. In the wake of the integration however, art production in the formalist manner was further proliferated by the European diplomatic community which would also go as far as dictating artistic subject matter. This thesis argues that the Eurocentric and pre-eminently formalist approach to contemporary art has cost Zambian artists an international presence. I submit that the few instances where contemporary Zambian art practice has penetrated the ‘global art’ scene or caught the attention of international curators is due to artists adopting more radical conceptual approaches to art production, often creating tensions with local viewers. This thesis also examines conceptualism in contemporary Zambian art practice and examines the inequalities of the ‘global art’ world. I argue that conceptual art, although not generally accepted on the Zambian art scene, has played a vital role in helping Zambian artists enter the global art world, albeit modestly.
- Full Text:
- Date Issued: 2017
- Authors: Mulenga, Andrew Mukuka
- Date: 2017
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: http://hdl.handle.net/10962/5187 , vital:20784
- Description: In Zambia, ‘contemporary art’ (as a category constructed by the European-dominated international art world), was introduced by the European settler community and continued within its preserve, remaining largely inaccessible to the indigenous community of Africans until Zambia’s independence in 1964. This thesis traces the integration of Africans into the contemporary art community and attributes the process, in part, to a small group of artists of European descent who played a significant role in engaging with Zambians, working side by side with them, subsequently influencing their art production and implicitly shaping the ways in which ‘Zambian’ art ‘ought to’ look for decades to come. The research traces the early days of contemporary art practice in Zambia to the Lusaka Art Society and Art Centre Foundation that was founded and run by an all-settler group of formally trained artists with a particular inclination towards sculpture and painting. In the wake of the integration however, art production in the formalist manner was further proliferated by the European diplomatic community which would also go as far as dictating artistic subject matter. This thesis argues that the Eurocentric and pre-eminently formalist approach to contemporary art has cost Zambian artists an international presence. I submit that the few instances where contemporary Zambian art practice has penetrated the ‘global art’ scene or caught the attention of international curators is due to artists adopting more radical conceptual approaches to art production, often creating tensions with local viewers. This thesis also examines conceptualism in contemporary Zambian art practice and examines the inequalities of the ‘global art’ world. I argue that conceptual art, although not generally accepted on the Zambian art scene, has played a vital role in helping Zambian artists enter the global art world, albeit modestly.
- Full Text:
- Date Issued: 2017
Richard Charles Nicholas Branson : a psychobiographical study
- Authors: Preston, Amanda Lorraine
- Date: 2017
- Subjects: Branson, Richard Charles Nicholas, -- 1950- Businessmen -- Great Britain -- Biography Success in business
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/5543 , vital:29318
- Description: Unique individuals are fascinating as we all want to be successful. There is thus a need to understand, unpack and share the psychological development and traits that allow some people to become sui generis, and to learn from them. Psychobiographical research is a qualitative approach that can be utilised to uncover the story of such an individual life, resulting in greater understanding of the psychological concepts underpinning the person. This form of study is invaluable, and involves applying psychological theory to lives completed or unfinished, enabling the development and testing of developmental theories. Richard Branson (1950-present), an entrepreneur, adventurer, philanthropist and family man is the single psychological subject chosen in this study. Branson was selected based on interest value, his uniqueness and the lack of a specifically academic and psychologically focused case study on his life. The primary aim was to explore and describe Branson’s personality development across his life, to date. This was achieved by applying both Maslow’s (1954, 1970) theory of optimal development and Adler’s (1929, 1956) Individual Psychology theory to provide a comprehensive idiographic interpretation of the development of Branson. To achieve this, the case study utilised the systematic and consistent collection, analysis and interpretation of life history materials, highlighting three areas of development, namely Childhood, Adolescence and Adulthood. The theoretical frameworks were used to discern, transform and reconstruct his life into a coherent and illuminating narrative of his psychological movement through life. Alexander’s (1988; 1990) model of identifying salient themes was used to analyse data for analytical generalisation (Yin, 2009). The conceptual framework derived from the theoretical perspective was constructed to organize, integrate data, and guide the presentation and discussion of findings of the study in an integrative and comprehensive manner. The findings suggest both Maslow’s and Adler’s theories considered the biopsychosocial context in Branson’s personality development and, at least to some extent, supported concepts indicative of progression toward optimality through having met the needs of the ego actualisation of his self, toward transcending selfishness and attaining altruism and social interest. The study of Branson’s personality development has provided a positive demonstration of the value of Maslow’s (1970a) and Adler’s (1929, 1956) theories to understand the process of development. It has further highlighted the unique trajectory of an individual’s life, contextualized, as well as the possibility of being agents in our own lives and despite challenges, able to become our own idiosyncratic best. The study also highlights the need, at a macro level, for governments to assist those unable to satisfy basic needs such as food, shelter and safety, to set an imperative, to aid those who struggle if a country and its people are to be uplifted. In terms of Adlerian theory, the study highlights the importance of family and early experiences in supporting the earliest years of children to assist them to develop an identity that is healthy and socially useful. Finally, recommendations were made for future research utilising a psychobiographical research design to uncover, illuminate and reconstruct the lives of outstanding and interesting individuals.
- Full Text:
- Date Issued: 2017
- Authors: Preston, Amanda Lorraine
- Date: 2017
- Subjects: Branson, Richard Charles Nicholas, -- 1950- Businessmen -- Great Britain -- Biography Success in business
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/5543 , vital:29318
- Description: Unique individuals are fascinating as we all want to be successful. There is thus a need to understand, unpack and share the psychological development and traits that allow some people to become sui generis, and to learn from them. Psychobiographical research is a qualitative approach that can be utilised to uncover the story of such an individual life, resulting in greater understanding of the psychological concepts underpinning the person. This form of study is invaluable, and involves applying psychological theory to lives completed or unfinished, enabling the development and testing of developmental theories. Richard Branson (1950-present), an entrepreneur, adventurer, philanthropist and family man is the single psychological subject chosen in this study. Branson was selected based on interest value, his uniqueness and the lack of a specifically academic and psychologically focused case study on his life. The primary aim was to explore and describe Branson’s personality development across his life, to date. This was achieved by applying both Maslow’s (1954, 1970) theory of optimal development and Adler’s (1929, 1956) Individual Psychology theory to provide a comprehensive idiographic interpretation of the development of Branson. To achieve this, the case study utilised the systematic and consistent collection, analysis and interpretation of life history materials, highlighting three areas of development, namely Childhood, Adolescence and Adulthood. The theoretical frameworks were used to discern, transform and reconstruct his life into a coherent and illuminating narrative of his psychological movement through life. Alexander’s (1988; 1990) model of identifying salient themes was used to analyse data for analytical generalisation (Yin, 2009). The conceptual framework derived from the theoretical perspective was constructed to organize, integrate data, and guide the presentation and discussion of findings of the study in an integrative and comprehensive manner. The findings suggest both Maslow’s and Adler’s theories considered the biopsychosocial context in Branson’s personality development and, at least to some extent, supported concepts indicative of progression toward optimality through having met the needs of the ego actualisation of his self, toward transcending selfishness and attaining altruism and social interest. The study of Branson’s personality development has provided a positive demonstration of the value of Maslow’s (1970a) and Adler’s (1929, 1956) theories to understand the process of development. It has further highlighted the unique trajectory of an individual’s life, contextualized, as well as the possibility of being agents in our own lives and despite challenges, able to become our own idiosyncratic best. The study also highlights the need, at a macro level, for governments to assist those unable to satisfy basic needs such as food, shelter and safety, to set an imperative, to aid those who struggle if a country and its people are to be uplifted. In terms of Adlerian theory, the study highlights the importance of family and early experiences in supporting the earliest years of children to assist them to develop an identity that is healthy and socially useful. Finally, recommendations were made for future research utilising a psychobiographical research design to uncover, illuminate and reconstruct the lives of outstanding and interesting individuals.
- Full Text:
- Date Issued: 2017
Exploring maternal parenting styles and methods of discipline in relation to autistic children's challenging behaviour in the home environment
- Authors: Ramjee, Prashana
- Date: 2017
- Subjects: Autistic children -- South Africa -- Discipline , Mentally ill children -- South Africa -- Discipline Parenthood -- South Africa -- Psychological aspects Parent and child -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/20570 , vital:29323
- Description: Autism Spectrum Disorder is not a modern phenomenon. Researchers have been studying children with “autism-like” characteristics for over one hundred years and only now it has become recognised, as it is a growing phenomenon. Autism is a vast and complex disorder with a range in which a child’s “autism-like” characteristics fall. Although, the primary distress of autism falls mainly on the child’s shoulders, primary caregivers such as mothers, are faced with many challenges due to the core behavioural characteristics. These challenging behaviours often leave mothers blaming themselves and defending their parenting skills. There are extensive publications regarding parenting that have been published through the years on children who do not have any diagnosed conditions, but limited research and publications exist in the area of parenting children on the autistic spectrum in general and in the South African context. The aim of this study was to explore and describe the maternal parenting styles and methods of discipline in relation to autistic children’s challenging behaviour. The present study incorporated Diana Baumrind’s Parenting Style Model as a framework to better understand the maternal parenting styles and methods of discipline. This study was explorative and descriptive in nature and a biographical questionnaire and a semi-structured interview schedule was utilised to gather data until saturation had been reached. A non-probability purposive sampling technique was employed to obtain participants and thematic analysis was used to analyse data and to extract themes. This study seeks to contribute to psychology's existing body of knowledge by conducting research on parenting styles of learners on the autistic spectrum in South Africa. By conducting this study the researcher hopes to be able to assist parents and helping Exploring Maternal Parenting Styles and Methods of Discipline in Relation to Autistic Children’s Challenging Behaviour in the Home Environment professionals with an understanding of the parenting styles and the methods that are being used to discipline the autistic child’s behaviour in the home environment.
- Full Text:
- Date Issued: 2017
- Authors: Ramjee, Prashana
- Date: 2017
- Subjects: Autistic children -- South Africa -- Discipline , Mentally ill children -- South Africa -- Discipline Parenthood -- South Africa -- Psychological aspects Parent and child -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/20570 , vital:29323
- Description: Autism Spectrum Disorder is not a modern phenomenon. Researchers have been studying children with “autism-like” characteristics for over one hundred years and only now it has become recognised, as it is a growing phenomenon. Autism is a vast and complex disorder with a range in which a child’s “autism-like” characteristics fall. Although, the primary distress of autism falls mainly on the child’s shoulders, primary caregivers such as mothers, are faced with many challenges due to the core behavioural characteristics. These challenging behaviours often leave mothers blaming themselves and defending their parenting skills. There are extensive publications regarding parenting that have been published through the years on children who do not have any diagnosed conditions, but limited research and publications exist in the area of parenting children on the autistic spectrum in general and in the South African context. The aim of this study was to explore and describe the maternal parenting styles and methods of discipline in relation to autistic children’s challenging behaviour. The present study incorporated Diana Baumrind’s Parenting Style Model as a framework to better understand the maternal parenting styles and methods of discipline. This study was explorative and descriptive in nature and a biographical questionnaire and a semi-structured interview schedule was utilised to gather data until saturation had been reached. A non-probability purposive sampling technique was employed to obtain participants and thematic analysis was used to analyse data and to extract themes. This study seeks to contribute to psychology's existing body of knowledge by conducting research on parenting styles of learners on the autistic spectrum in South Africa. By conducting this study the researcher hopes to be able to assist parents and helping Exploring Maternal Parenting Styles and Methods of Discipline in Relation to Autistic Children’s Challenging Behaviour in the Home Environment professionals with an understanding of the parenting styles and the methods that are being used to discipline the autistic child’s behaviour in the home environment.
- Full Text:
- Date Issued: 2017
The prospects of commercialising small-scale chicken production in Buffalo City metropolitan municipality, Eastern Cape province, South Africa
- Authors: Seti, Thembalethu Macdonald
- Date: 2017
- Subjects: Farms, Small -- South Africa -- Eastern Cape Poultry -- Breeding -- South Africa -- Eastern Cape Chicken industry -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/15244 , vital:40257
- Description: The aim of this study is to explore the prospects of commercialising small-scale chicken production in Buffalo City Metropolitan Municipality, Eastern Cape. In the attempt of exploring these prospects, the researcher sought to understand socio-economic characteristics of small-scale chicken farmers, describe the small-scale chicken enterprise, and determine farmer’s level of commercialisation and factors influencing the farmer’s commercialisation level. Stratified random sampling was used to select 99 participants in the study area. The sampled participants constituted small-scale chicken farmers that were supported by government projects and farmers that were not part of any government support. Descriptive statistics, Household Commercialization Index (HCI) and Multinomial Regression model were used to analyse data and bring meaning to it. The results of the study signify that most of the farmers (66percent) are subsistence oriented, meaning most of their produce is consumed within the household and about 40percent are semi-commercial and only 7percent are at full commercialization meaning they only produce for the market. The result also showed that access to extension services (p<0.03), gender (p<0.03) household size (permanent family members) (p<0.01), transport cost (p<0.04), farming experience (p<0.02, grades and standards (p<0.01), production machines (p<0.05), and distance to the market (p<0.05) were the major determinants influencing output commercialization in the study area. The major constraints to production identified and prioritized by farmers were lack of feed, disease outbreaks, high mortality rate and theft. Based on the study results, to bring about the prospects of commercialising small-scale chicken, government should consistently supply extension officers, government investment in poultry machines and transport is also recommended. In terms of further research, the study suggests that research on profitability of small-scale chicken production would yield immense insights for policy development.
- Full Text:
- Date Issued: 2017
- Authors: Seti, Thembalethu Macdonald
- Date: 2017
- Subjects: Farms, Small -- South Africa -- Eastern Cape Poultry -- Breeding -- South Africa -- Eastern Cape Chicken industry -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/15244 , vital:40257
- Description: The aim of this study is to explore the prospects of commercialising small-scale chicken production in Buffalo City Metropolitan Municipality, Eastern Cape. In the attempt of exploring these prospects, the researcher sought to understand socio-economic characteristics of small-scale chicken farmers, describe the small-scale chicken enterprise, and determine farmer’s level of commercialisation and factors influencing the farmer’s commercialisation level. Stratified random sampling was used to select 99 participants in the study area. The sampled participants constituted small-scale chicken farmers that were supported by government projects and farmers that were not part of any government support. Descriptive statistics, Household Commercialization Index (HCI) and Multinomial Regression model were used to analyse data and bring meaning to it. The results of the study signify that most of the farmers (66percent) are subsistence oriented, meaning most of their produce is consumed within the household and about 40percent are semi-commercial and only 7percent are at full commercialization meaning they only produce for the market. The result also showed that access to extension services (p<0.03), gender (p<0.03) household size (permanent family members) (p<0.01), transport cost (p<0.04), farming experience (p<0.02, grades and standards (p<0.01), production machines (p<0.05), and distance to the market (p<0.05) were the major determinants influencing output commercialization in the study area. The major constraints to production identified and prioritized by farmers were lack of feed, disease outbreaks, high mortality rate and theft. Based on the study results, to bring about the prospects of commercialising small-scale chicken, government should consistently supply extension officers, government investment in poultry machines and transport is also recommended. In terms of further research, the study suggests that research on profitability of small-scale chicken production would yield immense insights for policy development.
- Full Text:
- Date Issued: 2017
A leadership transfer framework to improve the retention rate in the private hotel industry
- Authors: Gregersen, Peter Carl
- Date: 2017
- Subjects: Corporate culture -- South Africa , Employee retention -- South Africa , Hospitality industry -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/7160 , vital:21284
- Description: The transference of knowledge and the creation of a knowledge vault within operations of the Hospitality sector is the cornerstone to the success of this dynamic contributor to the economy, not only as a skills developer, but also as a collective group of experts that unknowingly build a community of expertise that transfer knowledge amongst themselves within an organisation. Leadership that share knowledge, whether tacit or implied, leads to the development and knowledge growth from members to those who are exposed to the intricacies of decision making and business practices. This leads then to the skills development and retention of the participants who feel nurtured and fulfilled in the employment within the organisation and view themselves as valued members. The finding of this research reveals a correlation between knowledge sharing and the desire for job security that leads to the feeling of being nurtured and finding the employment positive and enjoyable. The transference of knowledge allows the receiver of the knowledge to develop to where the point of the receiver becoming an expert in their chosen field is attained and the collective of the mangers are developed to the level of a community of experts in their various fields. However the academic qualifications of leadership is low, the significance of this highlights the level of networking amongst themselves as paramount to the success of this multi million rand industry.
- Full Text:
- Date Issued: 2017
- Authors: Gregersen, Peter Carl
- Date: 2017
- Subjects: Corporate culture -- South Africa , Employee retention -- South Africa , Hospitality industry -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/7160 , vital:21284
- Description: The transference of knowledge and the creation of a knowledge vault within operations of the Hospitality sector is the cornerstone to the success of this dynamic contributor to the economy, not only as a skills developer, but also as a collective group of experts that unknowingly build a community of expertise that transfer knowledge amongst themselves within an organisation. Leadership that share knowledge, whether tacit or implied, leads to the development and knowledge growth from members to those who are exposed to the intricacies of decision making and business practices. This leads then to the skills development and retention of the participants who feel nurtured and fulfilled in the employment within the organisation and view themselves as valued members. The finding of this research reveals a correlation between knowledge sharing and the desire for job security that leads to the feeling of being nurtured and finding the employment positive and enjoyable. The transference of knowledge allows the receiver of the knowledge to develop to where the point of the receiver becoming an expert in their chosen field is attained and the collective of the mangers are developed to the level of a community of experts in their various fields. However the academic qualifications of leadership is low, the significance of this highlights the level of networking amongst themselves as paramount to the success of this multi million rand industry.
- Full Text:
- Date Issued: 2017
The determinants of service delivery success in local government: the case of Nelson Mandela Bay Municipality
- Authors: Terblanche, Venessa Hayley
- Date: 2017
- Subjects: Municipal services -- South Africa -- Nelson Mandela Bay Municipality Local government -- South Africa -- Nelson Mandela Bay Municipality , Government productivity -- South Africa -- Nelson Mandela Bay Municipality Performance -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/20774 , vital:29388
- Description: Section 153 of the Constitution of South Africa (RSA, 1996) states that “a municipality must structure and manage its administration, budgeting and planning process to give priority to the needs of the community and to promote the social and economic development of the community”. Despite this mandate placed on local government, De Wet and Moseki (2015, p. 61) write that insurgent South Africans engage in violent protests against continued “municipal ineffectiveness in service delivery, poor responsiveness to citizens’ grievances, and a conspicuous consumption entailed by a culture of self-enrichment on the part of councillors and staff”. The Department of Corporate Governance and Traditional Affairs (COGTA ) (2014) identify huge service delivery backlogs, poor communication and accountability relationships with communities, corruption and fraud, poor financial management and insufficient municipal capacity as a result of lack of scarce skills as some of the priority areas impacting hardest on the municipality’s ability to function as a well-performing municipality. Mpofu and Hlatywayo (2015) report that poor performance by workers in local government has been established as one of the major issues affecting the efficient provision of municipal services by municipalities. It thus follows that the performance and conduct of municipal employees need to be improved in order to improve the delivery of basic services to the communities they are to serve. Hanyane and Naidoo (2015) hold the view that without proper service delivery, the achievement of good governance and the effective use of public resources will remain elusive. The primary objective of this study was to contribute to improving the levels of service delivery at a selected municipality by identifying which factors the employees of the municipality consider most effective in improving their levels of service delivery within the organisation. A questionnaire was structured and used to conduct a survey with 65 middle-level managers, senior-level supervisors, middle-level supervisors and operational staff.The study concluded that talent management and retention strategies were the only independent variable that proved to have a significant positive relationship with service delivery within the selected municipality.
- Full Text:
- Date Issued: 2017
- Authors: Terblanche, Venessa Hayley
- Date: 2017
- Subjects: Municipal services -- South Africa -- Nelson Mandela Bay Municipality Local government -- South Africa -- Nelson Mandela Bay Municipality , Government productivity -- South Africa -- Nelson Mandela Bay Municipality Performance -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/20774 , vital:29388
- Description: Section 153 of the Constitution of South Africa (RSA, 1996) states that “a municipality must structure and manage its administration, budgeting and planning process to give priority to the needs of the community and to promote the social and economic development of the community”. Despite this mandate placed on local government, De Wet and Moseki (2015, p. 61) write that insurgent South Africans engage in violent protests against continued “municipal ineffectiveness in service delivery, poor responsiveness to citizens’ grievances, and a conspicuous consumption entailed by a culture of self-enrichment on the part of councillors and staff”. The Department of Corporate Governance and Traditional Affairs (COGTA ) (2014) identify huge service delivery backlogs, poor communication and accountability relationships with communities, corruption and fraud, poor financial management and insufficient municipal capacity as a result of lack of scarce skills as some of the priority areas impacting hardest on the municipality’s ability to function as a well-performing municipality. Mpofu and Hlatywayo (2015) report that poor performance by workers in local government has been established as one of the major issues affecting the efficient provision of municipal services by municipalities. It thus follows that the performance and conduct of municipal employees need to be improved in order to improve the delivery of basic services to the communities they are to serve. Hanyane and Naidoo (2015) hold the view that without proper service delivery, the achievement of good governance and the effective use of public resources will remain elusive. The primary objective of this study was to contribute to improving the levels of service delivery at a selected municipality by identifying which factors the employees of the municipality consider most effective in improving their levels of service delivery within the organisation. A questionnaire was structured and used to conduct a survey with 65 middle-level managers, senior-level supervisors, middle-level supervisors and operational staff.The study concluded that talent management and retention strategies were the only independent variable that proved to have a significant positive relationship with service delivery within the selected municipality.
- Full Text:
- Date Issued: 2017
“Oh, you have a ‘she’?”: exploring the lived experiences of black same-sex females living in Grahamstown, South Africa
- Authors: Haihambo, Naem Patemoshela
- Date: 2017
- Subjects: Lesbians, Black -- South Africa -- Makhanda , Lesbians, Black -- South Africa -- Makhanda -- Psychology , Lesbians, Black -- South Africa -- Public opinion , Lesbianism -- South Africa -- Makhanda , Lesbianism -- South Africa -- Public opinion
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/4304 , vital:20646
- Description: The South African Constitution prohibits discrimination on the basis of a variety of factors including race and gender and sexual orientation. This inclusion came in 1996 after an oppressive apartheid regime was overcome, also positioning the South African Constitution amongst the more liberal, especially in the wider African context. This inclusion and the contextual disparity has caused curiosity about the realities of same-sex sexualities, especially taking into consideration media reports on violence and perceived social opposition of same- sex sexualities in South Africa. Much of this attention has motivated research studies on same-sex sexualities. Within this research, however, black female same-sex sexualities have been positioned as vulnerable and victimised within the heteronormative context, with much of this research focusing on ‘corrective/curative’ rape. There has however been increasing efforts in moving away from this limiting position by a select few (e.g. Zanele Muholi and Zethu Matebeni) in a more explorative direction in attempts to investigate black female sexualities as complex and expressive rather than passive. This study is an interpretive phenomenological investigation of the lived experiences of black female same-sex sexualities and the plurality of identities that influence their everyday experiences. This took into account intersectionality, heteronormativity and queer theory, which provided a theoretical framework for this study. During the interview process, participants described their experiences as black same-sex females in a variety of contexts including their experiences and influences of external factors (such as family and university. From the results of this research, experiences and identities of participants are presented as complex, fluid, expressive and to some extent political. Participants also expressed the difficulties encountered with misinformed friends and families and describe ways in which they assert themselves within their social and personal contexts.
- Full Text:
- Date Issued: 2017
- Authors: Haihambo, Naem Patemoshela
- Date: 2017
- Subjects: Lesbians, Black -- South Africa -- Makhanda , Lesbians, Black -- South Africa -- Makhanda -- Psychology , Lesbians, Black -- South Africa -- Public opinion , Lesbianism -- South Africa -- Makhanda , Lesbianism -- South Africa -- Public opinion
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/4304 , vital:20646
- Description: The South African Constitution prohibits discrimination on the basis of a variety of factors including race and gender and sexual orientation. This inclusion came in 1996 after an oppressive apartheid regime was overcome, also positioning the South African Constitution amongst the more liberal, especially in the wider African context. This inclusion and the contextual disparity has caused curiosity about the realities of same-sex sexualities, especially taking into consideration media reports on violence and perceived social opposition of same- sex sexualities in South Africa. Much of this attention has motivated research studies on same-sex sexualities. Within this research, however, black female same-sex sexualities have been positioned as vulnerable and victimised within the heteronormative context, with much of this research focusing on ‘corrective/curative’ rape. There has however been increasing efforts in moving away from this limiting position by a select few (e.g. Zanele Muholi and Zethu Matebeni) in a more explorative direction in attempts to investigate black female sexualities as complex and expressive rather than passive. This study is an interpretive phenomenological investigation of the lived experiences of black female same-sex sexualities and the plurality of identities that influence their everyday experiences. This took into account intersectionality, heteronormativity and queer theory, which provided a theoretical framework for this study. During the interview process, participants described their experiences as black same-sex females in a variety of contexts including their experiences and influences of external factors (such as family and university. From the results of this research, experiences and identities of participants are presented as complex, fluid, expressive and to some extent political. Participants also expressed the difficulties encountered with misinformed friends and families and describe ways in which they assert themselves within their social and personal contexts.
- Full Text:
- Date Issued: 2017
The effects of terpenoids on the expression and function of cytokines and adipokines in pre-adipocytes and differentiated adipocytes
- Authors: Bloom, Carri-Ann
- Date: 2017
- Subjects: Terpenes , Cytokines , Fat cells
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/9208 , vital:26479
- Description: CURRENTLY UNDER EMBARGO UNTIL THE 26/4/2019: Type 2 diabetes is a metabolic disorder characterised by inflammation, insulin resistance and the inability of pancreatic β-cells to secrete enough insulin to produce a physiological effect. Obesity and high levels of triacylglycerol’s are associated with the development of Type 2 diabetes. Adipose tissue is an active endocrine organ that secretes various protein and peptide hormones, known as adipokines, which mediate important metabolic functions. In an insulin resistant and hyperglycaemic state, levels of anti-inflammatory adipokines, adiponectin, are reduced, whereas levels of pro-inflammatory cytokines, interleukin-6 and interleukin-1β, are elevated; this results in a shift from an anti- to a pro-inflammatory state that is accompanied by dysfunction and apoptosis of the pancreatic β-cells. Cannabis sativa L. has been traditionally used as an anti-inflammatory agent in Southern Africa, specifically treating snakebites, fever and malaria. Δ9-tetrahydrocannabinol is the main psychoactive compound derived from C. sativa, whereas the other major cannabinoids, cannabinol and cannabidiol, have shown anti-inflammatory and sedative properties respectively. Marrubiin is a compound derived from the plant Leonotis leonurus L. and has been traditionally used as an anti-inflammatory and anti-diabetic agent. To determine the effects of these compounds in a hyperglycaemic state, pre- and differentiated mouse adipocytes (3T3-L1 cells) were exposed for seven and fourteen days to the following treatments: Δ9-tetrahydrocannabinol, cannabidiol, cannabinol, marrubiin, anandamide (an endogenous endocannabinoid) and cannabis extract, individually and in combination, under normal glucose and hyperglycaemic conditions. Levels of adiponectin, interleukin-6, leptin, tumour-necrosis factor-α and interleukin-1β were quantified using mouse enzyme-linked immunosorbent assay kits and Oil Red O staining was carried out to determine lipid distribution and lipid droplet characteristics. Results indicate that various cannabinoids, in combination, mediate an anti-inflammatory effect by decreasing the expression of various pro-inflammatory cytokines, which may have allowed for a shift from a pro- to an anti-inflammatory state by these compounds, and may also contribute to the reduction of lipid, which may be used as a supplementary option to current diabetic treatment regimes.
- Full Text: false
- Date Issued: 2017
- Authors: Bloom, Carri-Ann
- Date: 2017
- Subjects: Terpenes , Cytokines , Fat cells
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/9208 , vital:26479
- Description: CURRENTLY UNDER EMBARGO UNTIL THE 26/4/2019: Type 2 diabetes is a metabolic disorder characterised by inflammation, insulin resistance and the inability of pancreatic β-cells to secrete enough insulin to produce a physiological effect. Obesity and high levels of triacylglycerol’s are associated with the development of Type 2 diabetes. Adipose tissue is an active endocrine organ that secretes various protein and peptide hormones, known as adipokines, which mediate important metabolic functions. In an insulin resistant and hyperglycaemic state, levels of anti-inflammatory adipokines, adiponectin, are reduced, whereas levels of pro-inflammatory cytokines, interleukin-6 and interleukin-1β, are elevated; this results in a shift from an anti- to a pro-inflammatory state that is accompanied by dysfunction and apoptosis of the pancreatic β-cells. Cannabis sativa L. has been traditionally used as an anti-inflammatory agent in Southern Africa, specifically treating snakebites, fever and malaria. Δ9-tetrahydrocannabinol is the main psychoactive compound derived from C. sativa, whereas the other major cannabinoids, cannabinol and cannabidiol, have shown anti-inflammatory and sedative properties respectively. Marrubiin is a compound derived from the plant Leonotis leonurus L. and has been traditionally used as an anti-inflammatory and anti-diabetic agent. To determine the effects of these compounds in a hyperglycaemic state, pre- and differentiated mouse adipocytes (3T3-L1 cells) were exposed for seven and fourteen days to the following treatments: Δ9-tetrahydrocannabinol, cannabidiol, cannabinol, marrubiin, anandamide (an endogenous endocannabinoid) and cannabis extract, individually and in combination, under normal glucose and hyperglycaemic conditions. Levels of adiponectin, interleukin-6, leptin, tumour-necrosis factor-α and interleukin-1β were quantified using mouse enzyme-linked immunosorbent assay kits and Oil Red O staining was carried out to determine lipid distribution and lipid droplet characteristics. Results indicate that various cannabinoids, in combination, mediate an anti-inflammatory effect by decreasing the expression of various pro-inflammatory cytokines, which may have allowed for a shift from a pro- to an anti-inflammatory state by these compounds, and may also contribute to the reduction of lipid, which may be used as a supplementary option to current diabetic treatment regimes.
- Full Text: false
- Date Issued: 2017
Decolonising the regulation of the right to strike in South Africa : an analysis
- Authors: Tsanyau, Dauglous
- Date: 2017
- Subjects: Right to strike Strikes and lockouts -- South Africa Strikes and lockouts -- Law and legislation
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10353/8813 , vital:33615
- Description: This study develops a robust approach in addressing conceptual problems surrounding the implementation of the right to strike in South Africa. The South African labour regime recognises the right of workers to strike as protected in various international, national and regional instruments. The right is guaranteed by section 23 of the Constitution of the Republic of South Africa which bestows on every worker the right to strike. In order to give effect to the rights contained in section 23 of the Constitution, the Labour Relations Act 66 of 1995 (LRA) was enacted by the South African parliament. Presently, violent strikes have been noted as a prevailing feature of the South African labour landscape. The LRA has possibly perpetually failed to realise its critical objectives as labour unrest still stands as a dominant feature of South Africa. Certainly, the labour legislative framework in place has failed to quench violent strikes whose ugly incidences have continued to haunt South African labour relations. This study therefore intends to be a preliminary examination of these issues and interrogates the labour legislative framework which guarantees the right to strike. The study begins with an outline of the historical development of the right. It defines the right to strike and other related concepts. The study proceeds to unpack the international and regional legislative framework of the right to strike. Further, it explores the effects and consequences of violent strikes with reference to the Marikana labour dispute and other case laws. Finally, focusing on the Marikana strike case, deficiencies in the bargaining system, the use of replacement labour and trade Union Liability, the dissertation offers the practical recommendations for a progressive, peaceful and democratic labour system.
- Full Text:
- Date Issued: 2017
- Authors: Tsanyau, Dauglous
- Date: 2017
- Subjects: Right to strike Strikes and lockouts -- South Africa Strikes and lockouts -- Law and legislation
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10353/8813 , vital:33615
- Description: This study develops a robust approach in addressing conceptual problems surrounding the implementation of the right to strike in South Africa. The South African labour regime recognises the right of workers to strike as protected in various international, national and regional instruments. The right is guaranteed by section 23 of the Constitution of the Republic of South Africa which bestows on every worker the right to strike. In order to give effect to the rights contained in section 23 of the Constitution, the Labour Relations Act 66 of 1995 (LRA) was enacted by the South African parliament. Presently, violent strikes have been noted as a prevailing feature of the South African labour landscape. The LRA has possibly perpetually failed to realise its critical objectives as labour unrest still stands as a dominant feature of South Africa. Certainly, the labour legislative framework in place has failed to quench violent strikes whose ugly incidences have continued to haunt South African labour relations. This study therefore intends to be a preliminary examination of these issues and interrogates the labour legislative framework which guarantees the right to strike. The study begins with an outline of the historical development of the right. It defines the right to strike and other related concepts. The study proceeds to unpack the international and regional legislative framework of the right to strike. Further, it explores the effects and consequences of violent strikes with reference to the Marikana labour dispute and other case laws. Finally, focusing on the Marikana strike case, deficiencies in the bargaining system, the use of replacement labour and trade Union Liability, the dissertation offers the practical recommendations for a progressive, peaceful and democratic labour system.
- Full Text:
- Date Issued: 2017
Culturally informed conceptions of traumatic experience and coping strategies among the mole-dagbon of Ghana
- Authors: Thompson, Sandra
- Date: 2017
- Subjects: Cultural psychiatry -- Ghana , Post-traumatic stress disorder -- Ghana , Dagbani (African people)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/9327 , vital:26578
- Description: Culture is important to an individual’s understanding of traumatic events and the symptoms that ensue after such events. Cultural understandings also inform how individuals cope with the traumatic stress symptoms they experience. A great deal is known about the understanding of traumatic experiences and effective coping mechanisms used in Western cultures, but non-Western cultures are generally understudied. Valuable lessons are learnt from conducting studies with understudied non-Western cultures. The research sought to explore and describe the culturally informed conceptions of traumatic experience and coping strategies in one such understudied population - the Mole-Dagbon of Ghana. The research used a qualitative exploratory descriptive interpretive methodology. Purposive nonprobability sampling was used to gain access to individuals who could comment on the knowledge objectives of the study. Data was collected using focus group discussions with cultural leaders, and semi-structured interviews with traumatized individuals. All interviews were audio-recorded, transcribed, translated and analyzed using interpretive phenomenological analysis. The findings indicated that traumatic experiences and the coping strategies are influenced by a number of cultural factors. Participants’ understanding of traumatic experiences and symptoms relied heavily on normative traditional African cultural understandings, but explanations also utilized monotheistic (from Islam and Christianity) worldviews. It was also evident that not all explanations were purely spiritual and events and symptoms were also explained using a natural/scientific framework. Some aspects of this system indicated parallels with the Western cognitive understanding of traumatic stress symptoms. The Mole-Dagbon did not focus naturally on explaining the events and symptoms and in the current sample such explanations were often deferred to authoritative individuals in the society (especially the soothsayers from the Traditional African Religion). However, there was an easy focus on coping with the symptoms after a traumatic event and in this last aspect there was a great degree of agreement between participants. A clear hierarchy of coping emerged with community and family social support being considered the most important aspect. Irrespective of religious affiliation, individuals also considered a visit to the soothsayer and completing prescribed rituals as important in the process. Even where an individual did not wish to include this practice from African Traditional Religion because of religious affiliation, they acknowledged the existence and effectiveness of these practices. Finally, it was thought important that a traumatized individual consult a religious leader for counselling (again irrespective of the actual religion). While there were elements of cognitive understanding and a recognition of counselling by religious leaders, Western based treatment modalities were not mentioned as options for the treatment of the symptoms of PTSD. Practitioners that come into contact with the Mole-Dagbon may need to use collaborative treatment strategies that respects and utilizes cultural treatment strategies for PTSD. One interesting element that needs further exploration is whether the cognitive understandings of the Mole-Dagbon can be used in a cognitive therapeutic paradigm. Even though these cognitive appraisals are present in explaining symptoms, there are no direct cultural remedies that rely on them.
- Full Text:
- Date Issued: 2017
- Authors: Thompson, Sandra
- Date: 2017
- Subjects: Cultural psychiatry -- Ghana , Post-traumatic stress disorder -- Ghana , Dagbani (African people)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/9327 , vital:26578
- Description: Culture is important to an individual’s understanding of traumatic events and the symptoms that ensue after such events. Cultural understandings also inform how individuals cope with the traumatic stress symptoms they experience. A great deal is known about the understanding of traumatic experiences and effective coping mechanisms used in Western cultures, but non-Western cultures are generally understudied. Valuable lessons are learnt from conducting studies with understudied non-Western cultures. The research sought to explore and describe the culturally informed conceptions of traumatic experience and coping strategies in one such understudied population - the Mole-Dagbon of Ghana. The research used a qualitative exploratory descriptive interpretive methodology. Purposive nonprobability sampling was used to gain access to individuals who could comment on the knowledge objectives of the study. Data was collected using focus group discussions with cultural leaders, and semi-structured interviews with traumatized individuals. All interviews were audio-recorded, transcribed, translated and analyzed using interpretive phenomenological analysis. The findings indicated that traumatic experiences and the coping strategies are influenced by a number of cultural factors. Participants’ understanding of traumatic experiences and symptoms relied heavily on normative traditional African cultural understandings, but explanations also utilized monotheistic (from Islam and Christianity) worldviews. It was also evident that not all explanations were purely spiritual and events and symptoms were also explained using a natural/scientific framework. Some aspects of this system indicated parallels with the Western cognitive understanding of traumatic stress symptoms. The Mole-Dagbon did not focus naturally on explaining the events and symptoms and in the current sample such explanations were often deferred to authoritative individuals in the society (especially the soothsayers from the Traditional African Religion). However, there was an easy focus on coping with the symptoms after a traumatic event and in this last aspect there was a great degree of agreement between participants. A clear hierarchy of coping emerged with community and family social support being considered the most important aspect. Irrespective of religious affiliation, individuals also considered a visit to the soothsayer and completing prescribed rituals as important in the process. Even where an individual did not wish to include this practice from African Traditional Religion because of religious affiliation, they acknowledged the existence and effectiveness of these practices. Finally, it was thought important that a traumatized individual consult a religious leader for counselling (again irrespective of the actual religion). While there were elements of cognitive understanding and a recognition of counselling by religious leaders, Western based treatment modalities were not mentioned as options for the treatment of the symptoms of PTSD. Practitioners that come into contact with the Mole-Dagbon may need to use collaborative treatment strategies that respects and utilizes cultural treatment strategies for PTSD. One interesting element that needs further exploration is whether the cognitive understandings of the Mole-Dagbon can be used in a cognitive therapeutic paradigm. Even though these cognitive appraisals are present in explaining symptoms, there are no direct cultural remedies that rely on them.
- Full Text:
- Date Issued: 2017
A framework to implement social entrepreneurship activities in higher education institutions
- Authors: Tai Hing, Paul
- Date: 2017
- Subjects: Social entrepreneurship -- Education (Higher) -- South Africa Business enterprises -- Education (Higher) -- South Africa , Social responsibility of business -- Education (Higher) -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/15923 , vital:28291
- Description: The development of social enterprises are recognised by the broader community as an effective tool for addressing social problems. As a result, the development and emergence of social enterprise sectors have taken various paths in different geographic regions in the world. For the African context, the withdrawal of funding from the state as a result of external conditions imposed by foreign actors as well as the institutional support provided by foreign aid organisations were the key drivers behind the emergence of the social enterprise sector in Africa. Within the South African context, job creation and poverty alleviation are pressing priorities, both politically and economically, so providing an environment that is conducive for the development of social enterprises or social entrepreneurship. Implementing social entrepreneurship activities in higher education is important as universities are under increasing pressure to become responsive to student needs, and there is a growing scrutiny of their engagement, supportive, and economic role in local communities. By supporting local communities, institutions can broaden the student experience and create an economic impact. In addition, as the student experience entails more than curricular learning opportunities, social entrepreneurship practices are an important dimension for higher learning. This study used a series of case studies of social entrepreneurship projects that were implemented in the classroom of the first and second year Management students on the 2nd Avenue Campus of the Nelson Mandela Metropolitan University (NMMU). These case studies highlighted the possibilities of how classroom space and students can be utilised to set-up social enterprises to improve the conditions of the many disadvantaged and disenfranchised communities within which the university functions. At the same time, learning takes place through the practical application of the theory taught in the classroom. From the seven case studies highlighted in the study, a framework was developed to implement social entrepreneurship activities in the context of higher education. This framework includes five steps, namely, motivation and inspiration to develop social enterprises in the classroom, student involvement in creating and developing a product for sale, use of appropriate teaching strategies to provide the learning experience, provision of adequate mentoring and control of the social enterprises and, finally, assessment of the social enterprises. With the funds generated from the projects, communities benefited, for example, the upgrading of community facilities. Educators in higher education institutions are responsible for developing future business leaders. Given the increasing importance of social issues, especially poverty, this educational experience ensured that the students were made aware of the importance of using the powers yielded by business to solve some of these social issues, and thus contribute to the improvement of the South African economy. As a result, social entrepreneurship has a role to play in addressing social and economic issues. For example, the entrepreneurship part of the business will help to alleviate the unemployment strain placed upon the South African economy, whereas, the social part of the business will assist in alleviating poverty. Regarding the implementation of social entrepreneurship activities within the environment of higher education, it is evident from the case studies that successful social enterprises can be established within the classroom and sufficient funds generated to effect positive change within disadvantaged communities. Other higher education institutions in South Africa may find the implementation of social entrepreneurship activities more problematic as they might not possess a similar university culture as the NMMU.
- Full Text:
- Date Issued: 2017
- Authors: Tai Hing, Paul
- Date: 2017
- Subjects: Social entrepreneurship -- Education (Higher) -- South Africa Business enterprises -- Education (Higher) -- South Africa , Social responsibility of business -- Education (Higher) -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/15923 , vital:28291
- Description: The development of social enterprises are recognised by the broader community as an effective tool for addressing social problems. As a result, the development and emergence of social enterprise sectors have taken various paths in different geographic regions in the world. For the African context, the withdrawal of funding from the state as a result of external conditions imposed by foreign actors as well as the institutional support provided by foreign aid organisations were the key drivers behind the emergence of the social enterprise sector in Africa. Within the South African context, job creation and poverty alleviation are pressing priorities, both politically and economically, so providing an environment that is conducive for the development of social enterprises or social entrepreneurship. Implementing social entrepreneurship activities in higher education is important as universities are under increasing pressure to become responsive to student needs, and there is a growing scrutiny of their engagement, supportive, and economic role in local communities. By supporting local communities, institutions can broaden the student experience and create an economic impact. In addition, as the student experience entails more than curricular learning opportunities, social entrepreneurship practices are an important dimension for higher learning. This study used a series of case studies of social entrepreneurship projects that were implemented in the classroom of the first and second year Management students on the 2nd Avenue Campus of the Nelson Mandela Metropolitan University (NMMU). These case studies highlighted the possibilities of how classroom space and students can be utilised to set-up social enterprises to improve the conditions of the many disadvantaged and disenfranchised communities within which the university functions. At the same time, learning takes place through the practical application of the theory taught in the classroom. From the seven case studies highlighted in the study, a framework was developed to implement social entrepreneurship activities in the context of higher education. This framework includes five steps, namely, motivation and inspiration to develop social enterprises in the classroom, student involvement in creating and developing a product for sale, use of appropriate teaching strategies to provide the learning experience, provision of adequate mentoring and control of the social enterprises and, finally, assessment of the social enterprises. With the funds generated from the projects, communities benefited, for example, the upgrading of community facilities. Educators in higher education institutions are responsible for developing future business leaders. Given the increasing importance of social issues, especially poverty, this educational experience ensured that the students were made aware of the importance of using the powers yielded by business to solve some of these social issues, and thus contribute to the improvement of the South African economy. As a result, social entrepreneurship has a role to play in addressing social and economic issues. For example, the entrepreneurship part of the business will help to alleviate the unemployment strain placed upon the South African economy, whereas, the social part of the business will assist in alleviating poverty. Regarding the implementation of social entrepreneurship activities within the environment of higher education, it is evident from the case studies that successful social enterprises can be established within the classroom and sufficient funds generated to effect positive change within disadvantaged communities. Other higher education institutions in South Africa may find the implementation of social entrepreneurship activities more problematic as they might not possess a similar university culture as the NMMU.
- Full Text:
- Date Issued: 2017
The emergence of youth protest music and arts as alternative media in Zimbabwe: a Gramscian analysis
- Authors: Kabwato, Chris
- Date: 2017
- Subjects: Protest songs -- Zimbabwe , Protest poetry -- Zimbabwe , Hip-hop -- Political aspects -- Zimbabwe , Radical theater -- Zimbabwe
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/51228 , vital:26072
- Description: The primary goal of the research is to examine the reasons for the emergence of - hip-hop-based youth protest music and satirical video comedy in Zimbabwe in a context where democratic and media practice has been restricted. The study examines the strategies and platforms that the young urban-based, musicians and cultural activists employ as they contest the meta-narrative of political nationalists who control the public mass media. The study recognises culture as a site of struggle and seeks to tease out the meaning of specific art forms (‘conscious’ hip-hop music and faux-news satire) in this very specific period of Zimbabwe’s history. The study proposes that the rise of these new forms of hip-hop based protest music, poetry and satirical comedy indicate how through the production and circulation of popular culture, ordinary Africans are able to debate pertinent issues that are marginalised by the official media channels. The study thus sees these artists as organic intellectuals who use alternative media to engage with different publics as they seek to counter hegemonic discourses.
- Full Text:
- Date Issued: 2017
The emergence of youth protest music and arts as alternative media in Zimbabwe: a Gramscian analysis
- Authors: Kabwato, Chris
- Date: 2017
- Subjects: Protest songs -- Zimbabwe , Protest poetry -- Zimbabwe , Hip-hop -- Political aspects -- Zimbabwe , Radical theater -- Zimbabwe
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/51228 , vital:26072
- Description: The primary goal of the research is to examine the reasons for the emergence of - hip-hop-based youth protest music and satirical video comedy in Zimbabwe in a context where democratic and media practice has been restricted. The study examines the strategies and platforms that the young urban-based, musicians and cultural activists employ as they contest the meta-narrative of political nationalists who control the public mass media. The study recognises culture as a site of struggle and seeks to tease out the meaning of specific art forms (‘conscious’ hip-hop music and faux-news satire) in this very specific period of Zimbabwe’s history. The study proposes that the rise of these new forms of hip-hop based protest music, poetry and satirical comedy indicate how through the production and circulation of popular culture, ordinary Africans are able to debate pertinent issues that are marginalised by the official media channels. The study thus sees these artists as organic intellectuals who use alternative media to engage with different publics as they seek to counter hegemonic discourses.
- Full Text:
- Date Issued: 2017
Exploring the possibility of integrating traditional music and dance into the design and delivery of lessons on the concepts of echo and waves in the grade 10 Physical Science sound topic
- Authors: Liveve, Angelius Kanyanga
- Date: 2017
- Subjects: Student-centered learning Namibia , Culturally relevant pedagogy Namibia , Science Study and teaching (Secondary) Namibia , Dance in education Namibia , Music in education Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/13356 , vital:21826
- Description: Before Namibian independence in 1990, teaching was mostly characterized by teacher-centred pedagogies in which teachers were perceived as the main sources of knowledge. This resulted in learners being passive recipients of such unquestioned knowledge. After independence and to address this, a new educational system was introduced which promoted learner-centred education (LCE) pedagogy. Despite these grand ideals, educational changes in sub-Saharan Africa form a complex issue involving tensions between policy formulation and implementation. This presents Namibian teachers with some challenges in enacting LCE pedagogies. One of these challenges is to find ways to motivate learners and to assist their learning by finding relevant and interesting connections between subject topics and their own experiences and everyday culture outside the classroom. An inability to enact the new curriculum results in learners performing poorly in subjects such as Physical Science. Against this backdrop, this study sought to explore whether or not the integration of traditional music and dance into the design and delivery of lessons on the concepts of echo and waves could influence grade 10 Physical Science learners’ sense making and dispositions towards science. This study was underpinned by an interpretive paradigm. It was informed and guided by the socio-cultural theory as my theoretical framework. The study was carried out with a grade 10 Physical Science class consisting of 30 learners at Lyambombla Combined School (pseudonym) in the Kavango West Region in the northern part of Namibia. Data were generated through diagnostic and summative tests, interviews and lesson observations incorporating traditional music and dance. The findings of the study showed that learners’ sense making and dispositions toward science were positively influenced through traditional music and dance. The study thus recommends the incorporation of indigenous ways of knowing in order to enhance meaning making in science classrooms.
- Full Text:
- Date Issued: 2017
- Authors: Liveve, Angelius Kanyanga
- Date: 2017
- Subjects: Student-centered learning Namibia , Culturally relevant pedagogy Namibia , Science Study and teaching (Secondary) Namibia , Dance in education Namibia , Music in education Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/13356 , vital:21826
- Description: Before Namibian independence in 1990, teaching was mostly characterized by teacher-centred pedagogies in which teachers were perceived as the main sources of knowledge. This resulted in learners being passive recipients of such unquestioned knowledge. After independence and to address this, a new educational system was introduced which promoted learner-centred education (LCE) pedagogy. Despite these grand ideals, educational changes in sub-Saharan Africa form a complex issue involving tensions between policy formulation and implementation. This presents Namibian teachers with some challenges in enacting LCE pedagogies. One of these challenges is to find ways to motivate learners and to assist their learning by finding relevant and interesting connections between subject topics and their own experiences and everyday culture outside the classroom. An inability to enact the new curriculum results in learners performing poorly in subjects such as Physical Science. Against this backdrop, this study sought to explore whether or not the integration of traditional music and dance into the design and delivery of lessons on the concepts of echo and waves could influence grade 10 Physical Science learners’ sense making and dispositions towards science. This study was underpinned by an interpretive paradigm. It was informed and guided by the socio-cultural theory as my theoretical framework. The study was carried out with a grade 10 Physical Science class consisting of 30 learners at Lyambombla Combined School (pseudonym) in the Kavango West Region in the northern part of Namibia. Data were generated through diagnostic and summative tests, interviews and lesson observations incorporating traditional music and dance. The findings of the study showed that learners’ sense making and dispositions toward science were positively influenced through traditional music and dance. The study thus recommends the incorporation of indigenous ways of knowing in order to enhance meaning making in science classrooms.
- Full Text:
- Date Issued: 2017
Appropriate integration of workers with physical limitations into a manual workplace – development of an assessment tool
- Authors: Pearson, Jessie T
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/8209 , vital:21368
- Description: Background: People with physical limitations can contribute significantly to society and the economy, however, barriers to full and effective participation in the labour market often hinder decent employment. In light of this, placement decisions of impaired workers should be based on detailed information of the nature of the jobs available, as well as individual capabilities of the worker. An ergonomics approach to design attempts to achieve an appropriate balance between the capabilities of the worker and the requirements of the task and uses this balance to improve productivity and encourage physical and mental well-being, job satisfaction and safety. A specific analysis tool which can be applied to various workplaces and jobs, and provide information for decisions regarding placement of physically limited workers, will help to increase the percentage of correct placement in an appropriate workplace, resulting in optimum productivity and worker safety. Methods: An assessment tool which allows matching of job requirements and worker capabilities was developed based on a theoretical framework from Mattison and Goebel (2007), as well as principles defined by Almgren and Schaurig (2012) and Demura and Nakada (2010). The tool assesses range of motion, force and time components of the physical requirements of different tasks involved in the job, as well as movement capabilities and limitations of the worker. The tool was pilot tested in a case study with an above the knee amputee working at a research facility. Results: The tool successfully provided information regarding the matching of the work to the identified job. The output of the tool highlighted two tasks which would place the worker at risk due to physical requirements of the tasks being greater than movement capabilities of the worker. These tasks need to be further investigated to determine if accommodations can be made to assist the worker in safely performing the task, or if the job is not suitable for the worker. Conclusions: The tool developed was useful in providing information to inform appropriate placement of the physically limited worker. Further research needs to be done to validate and determine reliability of the tool.
- Full Text:
- Date Issued: 2017
- Authors: Pearson, Jessie T
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/8209 , vital:21368
- Description: Background: People with physical limitations can contribute significantly to society and the economy, however, barriers to full and effective participation in the labour market often hinder decent employment. In light of this, placement decisions of impaired workers should be based on detailed information of the nature of the jobs available, as well as individual capabilities of the worker. An ergonomics approach to design attempts to achieve an appropriate balance between the capabilities of the worker and the requirements of the task and uses this balance to improve productivity and encourage physical and mental well-being, job satisfaction and safety. A specific analysis tool which can be applied to various workplaces and jobs, and provide information for decisions regarding placement of physically limited workers, will help to increase the percentage of correct placement in an appropriate workplace, resulting in optimum productivity and worker safety. Methods: An assessment tool which allows matching of job requirements and worker capabilities was developed based on a theoretical framework from Mattison and Goebel (2007), as well as principles defined by Almgren and Schaurig (2012) and Demura and Nakada (2010). The tool assesses range of motion, force and time components of the physical requirements of different tasks involved in the job, as well as movement capabilities and limitations of the worker. The tool was pilot tested in a case study with an above the knee amputee working at a research facility. Results: The tool successfully provided information regarding the matching of the work to the identified job. The output of the tool highlighted two tasks which would place the worker at risk due to physical requirements of the tasks being greater than movement capabilities of the worker. These tasks need to be further investigated to determine if accommodations can be made to assist the worker in safely performing the task, or if the job is not suitable for the worker. Conclusions: The tool developed was useful in providing information to inform appropriate placement of the physically limited worker. Further research needs to be done to validate and determine reliability of the tool.
- Full Text:
- Date Issued: 2017
Uphononongo lwesimo sabalinganiswa ngokwepragmatiki kwiincwadi ezikhethiweyo zesiXhosa
- Msizi, Nontsikelelo Jeanette
- Authors: Msizi, Nontsikelelo Jeanette
- Date: 2017
- Subjects: Xhosa literature Pragmatics , Characters and characteristics in literature
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/19641 , vital:28921
- Description: Lo msebenzi uza kujonga unxibelelwano oluthi lwenzeke phakathi kwabalinganiswa abakwiincwadi zesixhosa kusetyenziswa ithiyori yonxibelelwano kujongwe ekubonisweni isimo sabalinganiswa ngokwepragmatiki kwincwadi ezimbini zesixhosa, u"Ndixoleleni" ebhalwe ngu W.N Mbovane kwakunye nethi "Buzani kuBawo" ebhalwe ngu W.K Tamsanqa. Kukholeleka ukuba amaxesha amaninzi abantu abathetha ulwimi olunye bayakwazi ukunxibelelana kodwa bangavani ngenxa yokutyeba kwentsingiselo yentetha. Ipragmatiki yona ithi ijonge umgaqo wolwimi kwindlela abathethi bolwimi abaphumeza ngayo iincoko zabo ukuze zibe nentsingiselo efanekileyo neyamkelekileyo kubo. Unxibelelwano ludlala indima ebalulekileyo kwizinto esizenzayo nasekuziphatheni kwethu kuba ubani angaziphatha ngokwendlela axelelwa ngayo okanye ayibone komnye umntu. Ingcangane yonxibelelwano ijonge nendlela ethi umyalezo, namazwi omntu athi aveze intsingiselo xa kuthethwa ngabantu. le ngcingane ikwasebenzisa iimpawu nentsingiselo uykugqithisa umyalezo.
- Full Text:
- Date Issued: 2017
- Authors: Msizi, Nontsikelelo Jeanette
- Date: 2017
- Subjects: Xhosa literature Pragmatics , Characters and characteristics in literature
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/19641 , vital:28921
- Description: Lo msebenzi uza kujonga unxibelelwano oluthi lwenzeke phakathi kwabalinganiswa abakwiincwadi zesixhosa kusetyenziswa ithiyori yonxibelelwano kujongwe ekubonisweni isimo sabalinganiswa ngokwepragmatiki kwincwadi ezimbini zesixhosa, u"Ndixoleleni" ebhalwe ngu W.N Mbovane kwakunye nethi "Buzani kuBawo" ebhalwe ngu W.K Tamsanqa. Kukholeleka ukuba amaxesha amaninzi abantu abathetha ulwimi olunye bayakwazi ukunxibelelana kodwa bangavani ngenxa yokutyeba kwentsingiselo yentetha. Ipragmatiki yona ithi ijonge umgaqo wolwimi kwindlela abathethi bolwimi abaphumeza ngayo iincoko zabo ukuze zibe nentsingiselo efanekileyo neyamkelekileyo kubo. Unxibelelwano ludlala indima ebalulekileyo kwizinto esizenzayo nasekuziphatheni kwethu kuba ubani angaziphatha ngokwendlela axelelwa ngayo okanye ayibone komnye umntu. Ingcangane yonxibelelwano ijonge nendlela ethi umyalezo, namazwi omntu athi aveze intsingiselo xa kuthethwa ngabantu. le ngcingane ikwasebenzisa iimpawu nentsingiselo uykugqithisa umyalezo.
- Full Text:
- Date Issued: 2017
The sedimentology and depositional model of VS5 reef at Beatrix mine and surrounding areas of the Freestate Goldfield, South Africa
- Authors: Shivambu, Steven
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/4942 , vital:20745
- Description: Historically, placers of economic importance at Sibanye Gold's Beatrix No. 3 Shaft were Beatrix Reef, Aandenk Reef and Composite of the two reefs. Recently, the VS5 placer has emerged to be a significant contributor of ore tonnages mined on the Shaft as mining advances into deeper levels towards the northern portion of the mine lease area. Gold concentration in the VS5 Reef is highly variable from uneconomic, through marginal to economic gold values. A good knowledge of the sedimentological framework of the VS5 Reef was considered necessary in order to interpret the variable distribution of the gold within the VS5 placer. The aim of this study was to determine the depositional environments that played a major role during the formation of the VS5 placer by means of investigating the macroscopic sedimentological parameters of this particular reef. These sedimentological parameters were used as the basis for the subdivision of VS5 Reef into different facies recognized in the mine and surrounding areas. It was recognized that the VS5 placer was formed in a distal, braided fluvial environment by the reworking of the pre-existing Aandenk Reef by new materials containing significant amount of nondurable materials (see definition on page xii) such as shale detritus. Where there is no evidence of reworking of the older Aandenk Reef, the VS5 Reef occurs as poorly sorted, polymictic conglomerate with abundance of non-durable detritus. This is referred to as the Immature (IV) VS5 facies and occurs in the northern portion of the study area. The degree of reworking of the gravel bars by waves and current action resulted in the formation of well sorted, oligomictic conglomerates of the Beatrix facies in the southern portion of the mine. At the boundaries between the Immature VS5 and Beatrix facies occurs the Transitional (Sub-mature) VS5 facies, characterized by reef comprising a polymictic upper portion and a basal more mature oligomictic unit. The Transitional VS5 facies extends across the current central northern mining faces of Beatrix No. 3 Shaft with a northwest-southeast trend. There is a strong correlation between the VS5 lithofacies and distribution of gold mineralization. The Immature VS5 facies is poorly mineralized, with gold values averaging 200 c.m.g/t and lower. The Transitional (Sub-mature) VS5 facies has elevated gold values, ranging from 300 c.m.g/t to 1500 cm.g/t. Mineralization in this unit tend to be bottom loaded as well as at the base of each cyclic unit. The Beatrix facies records the highest grades averaging >1500 cmg/t. The improved understanding of the VS5 lithofacies made it possible to predict gold mineralization and aid planning to mine into viable VS5 areas.
- Full Text:
- Date Issued: 2017
- Authors: Shivambu, Steven
- Date: 2017
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/4942 , vital:20745
- Description: Historically, placers of economic importance at Sibanye Gold's Beatrix No. 3 Shaft were Beatrix Reef, Aandenk Reef and Composite of the two reefs. Recently, the VS5 placer has emerged to be a significant contributor of ore tonnages mined on the Shaft as mining advances into deeper levels towards the northern portion of the mine lease area. Gold concentration in the VS5 Reef is highly variable from uneconomic, through marginal to economic gold values. A good knowledge of the sedimentological framework of the VS5 Reef was considered necessary in order to interpret the variable distribution of the gold within the VS5 placer. The aim of this study was to determine the depositional environments that played a major role during the formation of the VS5 placer by means of investigating the macroscopic sedimentological parameters of this particular reef. These sedimentological parameters were used as the basis for the subdivision of VS5 Reef into different facies recognized in the mine and surrounding areas. It was recognized that the VS5 placer was formed in a distal, braided fluvial environment by the reworking of the pre-existing Aandenk Reef by new materials containing significant amount of nondurable materials (see definition on page xii) such as shale detritus. Where there is no evidence of reworking of the older Aandenk Reef, the VS5 Reef occurs as poorly sorted, polymictic conglomerate with abundance of non-durable detritus. This is referred to as the Immature (IV) VS5 facies and occurs in the northern portion of the study area. The degree of reworking of the gravel bars by waves and current action resulted in the formation of well sorted, oligomictic conglomerates of the Beatrix facies in the southern portion of the mine. At the boundaries between the Immature VS5 and Beatrix facies occurs the Transitional (Sub-mature) VS5 facies, characterized by reef comprising a polymictic upper portion and a basal more mature oligomictic unit. The Transitional VS5 facies extends across the current central northern mining faces of Beatrix No. 3 Shaft with a northwest-southeast trend. There is a strong correlation between the VS5 lithofacies and distribution of gold mineralization. The Immature VS5 facies is poorly mineralized, with gold values averaging 200 c.m.g/t and lower. The Transitional (Sub-mature) VS5 facies has elevated gold values, ranging from 300 c.m.g/t to 1500 cm.g/t. Mineralization in this unit tend to be bottom loaded as well as at the base of each cyclic unit. The Beatrix facies records the highest grades averaging >1500 cmg/t. The improved understanding of the VS5 lithofacies made it possible to predict gold mineralization and aid planning to mine into viable VS5 areas.
- Full Text:
- Date Issued: 2017