Implementation of performance management systems at the South African Social Security Agency (SASSA), Nelson Mandela Metro District
- Authors: Nabo, Vuyokazi
- Date: 2014
- Subjects: Performance standards -- South Africa -- Nelson Mandela Bay Municipality , Performance -- Management -- Evaluation , Performance -- Measurement , Employees -- Rating of -- South Africa -- Nelson Mandela Bay Municipality
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/6412 , vital:21083
- Description: The focus of the study is to investigate the factors that impact on effective implementation of a performance management system at the South African Social Security Agency (SASSA) in the Eastern Cape Region, Nelson Mandela Metro District. It is said that an organisational success in service delivery largely depends on the efficiency and effectiveness of its employees in undertaking their functions, duties and responsibilities (Ntombela, Mpehle and Penciliah, 2010: 63).
- Full Text:
- Date Issued: 2014
- Authors: Nabo, Vuyokazi
- Date: 2014
- Subjects: Performance standards -- South Africa -- Nelson Mandela Bay Municipality , Performance -- Management -- Evaluation , Performance -- Measurement , Employees -- Rating of -- South Africa -- Nelson Mandela Bay Municipality
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/6412 , vital:21083
- Description: The focus of the study is to investigate the factors that impact on effective implementation of a performance management system at the South African Social Security Agency (SASSA) in the Eastern Cape Region, Nelson Mandela Metro District. It is said that an organisational success in service delivery largely depends on the efficiency and effectiveness of its employees in undertaking their functions, duties and responsibilities (Ntombela, Mpehle and Penciliah, 2010: 63).
- Full Text:
- Date Issued: 2014
Implementation of student retention programmes by two South African universities: towards a comprehensive student retention model
- Authors: Muhuro, Patricia
- Date: 2014
- Subjects: College dropouts -- South Africa -- Prevention , College attendance -- South Africa , Dropouts -- South Africa -- Prevention
- Language: English
- Type: Thesis , Doctoral , PhD (Education)
- Identifier: vital:16204 , http://hdl.handle.net/10353/d1016085 , College dropouts -- South Africa -- Prevention , College attendance -- South Africa , Dropouts -- South Africa -- Prevention
- Description: Using Tinto‟s (1993) interactionalist theory of student retention and Beatty Guenter‟s (1994) students retention strategy as guiding lenses, this study investigated the implementation of five student retention programmes in two universities in South Africa. Specifically the study sought to interrogate a) the mechanisms used to select students and peer facilitators who participate in each of the programmes, b) the delivery strategies that are in place and c) the programme monitoring and/or evaluation mechanisms in place to ensure that programme goals are achieved. The study adopted a concurrent mixed design embedded in the post positivist paradigm. The study revealed minimal student participation in all programmes, including those that were compulsory, owing to inconsistent enforcement of policies, stigmatisation, and poor perceptions about these programmes. In addition, the study found challenges in selection, support and monitoring of peer facilitators in almost all the programmes. This was linked to limited qualified staff, high dependence on borrowed delivery models and poor co-ordination among stakeholders. The study through a proposed Comprehensive Model for Student Retention, suggested collaborated and intensive and ongoing training of all facilitators in functional literacies, basic counselling and handling diversity, as well as co-ordinated selection and monitoring of the five programmes.
- Full Text:
- Date Issued: 2014
- Authors: Muhuro, Patricia
- Date: 2014
- Subjects: College dropouts -- South Africa -- Prevention , College attendance -- South Africa , Dropouts -- South Africa -- Prevention
- Language: English
- Type: Thesis , Doctoral , PhD (Education)
- Identifier: vital:16204 , http://hdl.handle.net/10353/d1016085 , College dropouts -- South Africa -- Prevention , College attendance -- South Africa , Dropouts -- South Africa -- Prevention
- Description: Using Tinto‟s (1993) interactionalist theory of student retention and Beatty Guenter‟s (1994) students retention strategy as guiding lenses, this study investigated the implementation of five student retention programmes in two universities in South Africa. Specifically the study sought to interrogate a) the mechanisms used to select students and peer facilitators who participate in each of the programmes, b) the delivery strategies that are in place and c) the programme monitoring and/or evaluation mechanisms in place to ensure that programme goals are achieved. The study adopted a concurrent mixed design embedded in the post positivist paradigm. The study revealed minimal student participation in all programmes, including those that were compulsory, owing to inconsistent enforcement of policies, stigmatisation, and poor perceptions about these programmes. In addition, the study found challenges in selection, support and monitoring of peer facilitators in almost all the programmes. This was linked to limited qualified staff, high dependence on borrowed delivery models and poor co-ordination among stakeholders. The study through a proposed Comprehensive Model for Student Retention, suggested collaborated and intensive and ongoing training of all facilitators in functional literacies, basic counselling and handling diversity, as well as co-ordinated selection and monitoring of the five programmes.
- Full Text:
- Date Issued: 2014
Implementation of the business studies national curriculum statement: a case study of four high schools in the Fort Beaufort education district
- Authors: Tyilo, Nomakula
- Date: 2014
- Subjects: Curriculum planning Curriculum planning Curriculum planning Education -- Curricula -- South Africa -- Eastern Cape Educational change -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , Degree
- Identifier: http://hdl.handle.net/10353/5829 , vital:29400
- Description: This study investigated the implementation of the Business Studies National Curriculum Statement in Schools in Fort Beaufort District. The interpretive paradigm was utilized in this study because it focuses on individual perceptions and experiences. In addition a qualitative approach was used for the collection of data so as to gain in-depth information on the implementation of the Business Studies National Curriculum. Semi- structured interviews, focus group interviews and document analysis were used as a form of collecting data. The participants were purposively selected for the sample of this study and comprised of 4 Principals, 3 Subject Advisors, 1 Provincial Subject Planner, 6 Teachers and 36 learners and interviews lasted for about 1 ½ hours. Data analysis was done in line with the research questions, aims and objectives of the study. Through the participants’ answers from schools under study, a transcript was formulated, coded and categorized in view of the implementation of Business Studies National Curriculum Statement in schools. Therefore, it was discovered from the data of the research study that the participants encounter a number of challenges with regard to teaching and implementing Business Studies in their schools. Namely: (1) lack of qualified personnel to teach Business Studies (2) lack of adequate teaching materials (3) lack of Subject Advisors executing their roles in helping teachers to teach Business Studies effectively (4) lack of training programmes and workshops on how to teach Business Studies in the classroom. Thus, there were variances in schools under study especially with relations to funding, availability of teaching material, support offered by School Heads and the Department of Education. As a result, emphasis was that the Department of Education had to come up with ways of continuously training the teachers and offering support in terms of teaching materials. Most of the participants from the school under study did not bother to plan their lessons when they were going to teach this subject. In sum, this study attempted to highlight the challenges that the participants encounter as they try to implement the Business Studies in their schools taking into the considering the educational history of their country. Hence some of the participants expressed why there is a need to create, cultivate and have a conducive and supportive working environment. The study recommends that the Department of Education provide teachers with special training on how to select relevant learning and teaching support material. Moreover, there is a greater need for Business Studies teachers to strike a balance between theory and practice in the deliverance of their lessons in Business Studies. Additionally, the District Officials must organise on-going training in Business Studies as this would help to rectify the problems that are currently being encountered in implementing Business Studies in schools.
- Full Text:
- Date Issued: 2014
- Authors: Tyilo, Nomakula
- Date: 2014
- Subjects: Curriculum planning Curriculum planning Curriculum planning Education -- Curricula -- South Africa -- Eastern Cape Educational change -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , Degree
- Identifier: http://hdl.handle.net/10353/5829 , vital:29400
- Description: This study investigated the implementation of the Business Studies National Curriculum Statement in Schools in Fort Beaufort District. The interpretive paradigm was utilized in this study because it focuses on individual perceptions and experiences. In addition a qualitative approach was used for the collection of data so as to gain in-depth information on the implementation of the Business Studies National Curriculum. Semi- structured interviews, focus group interviews and document analysis were used as a form of collecting data. The participants were purposively selected for the sample of this study and comprised of 4 Principals, 3 Subject Advisors, 1 Provincial Subject Planner, 6 Teachers and 36 learners and interviews lasted for about 1 ½ hours. Data analysis was done in line with the research questions, aims and objectives of the study. Through the participants’ answers from schools under study, a transcript was formulated, coded and categorized in view of the implementation of Business Studies National Curriculum Statement in schools. Therefore, it was discovered from the data of the research study that the participants encounter a number of challenges with regard to teaching and implementing Business Studies in their schools. Namely: (1) lack of qualified personnel to teach Business Studies (2) lack of adequate teaching materials (3) lack of Subject Advisors executing their roles in helping teachers to teach Business Studies effectively (4) lack of training programmes and workshops on how to teach Business Studies in the classroom. Thus, there were variances in schools under study especially with relations to funding, availability of teaching material, support offered by School Heads and the Department of Education. As a result, emphasis was that the Department of Education had to come up with ways of continuously training the teachers and offering support in terms of teaching materials. Most of the participants from the school under study did not bother to plan their lessons when they were going to teach this subject. In sum, this study attempted to highlight the challenges that the participants encounter as they try to implement the Business Studies in their schools taking into the considering the educational history of their country. Hence some of the participants expressed why there is a need to create, cultivate and have a conducive and supportive working environment. The study recommends that the Department of Education provide teachers with special training on how to select relevant learning and teaching support material. Moreover, there is a greater need for Business Studies teachers to strike a balance between theory and practice in the deliverance of their lessons in Business Studies. Additionally, the District Officials must organise on-going training in Business Studies as this would help to rectify the problems that are currently being encountered in implementing Business Studies in schools.
- Full Text:
- Date Issued: 2014
Improved l-cysteine electrocatalysis through a sequential drop dry technique using multi-walled carbon nanotubes and cobalt tetraaminophthalocyanine conjugates
- Nyoni, Stephen, Mugadza, Tawanda, Nyokong, Tebello
- Authors: Nyoni, Stephen , Mugadza, Tawanda , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/193813 , vital:45398 , xlink:href="https://doi.org/10.1016/j.electacta.2013.10.023"
- Description: Voltammetry, chronoamperometry, scanning electrochemical microscopy and electrochemical impedance spectroscopy methods are used for characterization of a glassy carbon electrode modified with multi-walled carbon nanotubes (MWCNTs)–cobalt tetraaminophthalocyanine (CoTAPc) mixture or sequential drop dry modification technique whereby the MWCNTs are first placed on to the electrode followed by CoTAPc. The sequential drop dry CoTAPc–MWCNTs modified surface gave better catalytic responses with a catalytic rate constant of 2.2 × 105 M−1 s−1, apparent electron transfer rate constant of 0.073 cm s−1, and a limit of detection of 2.8 × 10−7 M. Scanning electrochemical microscopy (SECM) surface characterization (topography and reactivity) further gave proof the better catalytic perfomance of the sequential drop dry CoTAPc–MWCNTs modified surface.
- Full Text:
- Date Issued: 2014
- Authors: Nyoni, Stephen , Mugadza, Tawanda , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/193813 , vital:45398 , xlink:href="https://doi.org/10.1016/j.electacta.2013.10.023"
- Description: Voltammetry, chronoamperometry, scanning electrochemical microscopy and electrochemical impedance spectroscopy methods are used for characterization of a glassy carbon electrode modified with multi-walled carbon nanotubes (MWCNTs)–cobalt tetraaminophthalocyanine (CoTAPc) mixture or sequential drop dry modification technique whereby the MWCNTs are first placed on to the electrode followed by CoTAPc. The sequential drop dry CoTAPc–MWCNTs modified surface gave better catalytic responses with a catalytic rate constant of 2.2 × 105 M−1 s−1, apparent electron transfer rate constant of 0.073 cm s−1, and a limit of detection of 2.8 × 10−7 M. Scanning electrochemical microscopy (SECM) surface characterization (topography and reactivity) further gave proof the better catalytic perfomance of the sequential drop dry CoTAPc–MWCNTs modified surface.
- Full Text:
- Date Issued: 2014
Improving attendance at an automotive manufacturing company in the Eastern Cape
- Authors: Arnolds, Allan
- Date: 2014
- Subjects: Absenteeism (Labor) -- South Africa -- Eastern Cape , Employee motivation -- South Africa -- Eastern Cape , Job satisfaction -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8871 , http://hdl.handle.net/10948/d1020324
- Description: Attendance in the workplace is becoming a growing challenge for companies or organisations in general. Non-attendance has become a world-wide or international problem. According to Banks, Patel and Moola (2012) it is a common problem in all types of industries, minor or large, private or government. South African organisations are losing estimated billions of rand in cost annually due to poor attendance. These costs are having a negative effect on organisations’ revenue, effectiveness, health and safety. A satisfactory level of employee attendance at work is necessary to allow departments within organisations to achieve their objectives and targets. Research suggests many factors which influence employee attendance and these are investigated, analysed and discussed within this study. The aim of the study was to attempt to improve attendance at an automotive manufacturing company by investigating the influences of certain elements, namely motivation, leadership (supportive), job satisfaction and rewards. The literature study was done to investigate the relationship between these factors and elements and attendance. Through research the realisation of the importance of controlling absenteeism has become very imminent. The literature review has shown that these factors are related to attendance, some of them influencing the tendency to attend work positively and others having a negative influence causing employees to be absent from work. The study also investigates some of the common possible reasons and motives for non-attendance. The empirical part of the study was to determine the perception of workers with regard to attendance. A convenience sampling method was used to select the respondents and the size of the sample consisted of 198 respondents. A researched and well-designed questionnaire was used to gather the data. The information was analysed with the latest statistics software package. Independent tests and analysis of various techniques were used to determine the statistical significant differences in the relationship between attendance and the elements with regard to employee perception. These perceptions were grouped in biographical categories, namely race, age, shop, service length, marital status, gender, income and the number of days absent in the last three years. Through the study statistically no actual significant difference was found among these groups. The key findings within this study show that there are no significant relationships between the dependent variable (attendance) and the independent variables, (motivation, leadership, job satisfaction and rewards). This relation is highlighted by the statistical data which is discussed and analysed individually for this study The theoretical and practical implications of the findings are discussed and recommendations based on these findings are provided.
- Full Text:
- Date Issued: 2014
- Authors: Arnolds, Allan
- Date: 2014
- Subjects: Absenteeism (Labor) -- South Africa -- Eastern Cape , Employee motivation -- South Africa -- Eastern Cape , Job satisfaction -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8871 , http://hdl.handle.net/10948/d1020324
- Description: Attendance in the workplace is becoming a growing challenge for companies or organisations in general. Non-attendance has become a world-wide or international problem. According to Banks, Patel and Moola (2012) it is a common problem in all types of industries, minor or large, private or government. South African organisations are losing estimated billions of rand in cost annually due to poor attendance. These costs are having a negative effect on organisations’ revenue, effectiveness, health and safety. A satisfactory level of employee attendance at work is necessary to allow departments within organisations to achieve their objectives and targets. Research suggests many factors which influence employee attendance and these are investigated, analysed and discussed within this study. The aim of the study was to attempt to improve attendance at an automotive manufacturing company by investigating the influences of certain elements, namely motivation, leadership (supportive), job satisfaction and rewards. The literature study was done to investigate the relationship between these factors and elements and attendance. Through research the realisation of the importance of controlling absenteeism has become very imminent. The literature review has shown that these factors are related to attendance, some of them influencing the tendency to attend work positively and others having a negative influence causing employees to be absent from work. The study also investigates some of the common possible reasons and motives for non-attendance. The empirical part of the study was to determine the perception of workers with regard to attendance. A convenience sampling method was used to select the respondents and the size of the sample consisted of 198 respondents. A researched and well-designed questionnaire was used to gather the data. The information was analysed with the latest statistics software package. Independent tests and analysis of various techniques were used to determine the statistical significant differences in the relationship between attendance and the elements with regard to employee perception. These perceptions were grouped in biographical categories, namely race, age, shop, service length, marital status, gender, income and the number of days absent in the last three years. Through the study statistically no actual significant difference was found among these groups. The key findings within this study show that there are no significant relationships between the dependent variable (attendance) and the independent variables, (motivation, leadership, job satisfaction and rewards). This relation is highlighted by the statistical data which is discussed and analysed individually for this study The theoretical and practical implications of the findings are discussed and recommendations based on these findings are provided.
- Full Text:
- Date Issued: 2014
Improving process flow for selected parts in a Port Elizabeth manufacturer of security products
- Authors: Mosebi, Thapelo David
- Date: 2014
- Subjects: Lean manufacturing -- South Africa -- Port Elizabeth , Materials handling
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8780 , vital:26429
- Description: South African SMMEs, just like their counterparts world-wide, play a very crucial role against the world economies. The competiveness of these SMMEs is therefore very important. Lean Manufacturing and its principles have been successfully applied by motor manufacturing industries over the years. Many other organisations has since followed suite and adopted lean manufacturing as an approach to optimise and better manage their resources while providing value to their customers. The objective of this study is to investigate how lean manufacturing techniques can be adopted by a specific SMME in a business of manufacturing security products for the banks to better manage its material flow and improve its competitiveness. The research uses observation method to gather information to develop the current value stream map and identify the wasteful procedures. The also involves the interviewing of staff members that are involved in the material handling within the organisation. The results from the two processes are explained and the future value stream map incorporating the lean techniques is developed and presented to the organisation.
- Full Text:
- Date Issued: 2014
- Authors: Mosebi, Thapelo David
- Date: 2014
- Subjects: Lean manufacturing -- South Africa -- Port Elizabeth , Materials handling
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/8780 , vital:26429
- Description: South African SMMEs, just like their counterparts world-wide, play a very crucial role against the world economies. The competiveness of these SMMEs is therefore very important. Lean Manufacturing and its principles have been successfully applied by motor manufacturing industries over the years. Many other organisations has since followed suite and adopted lean manufacturing as an approach to optimise and better manage their resources while providing value to their customers. The objective of this study is to investigate how lean manufacturing techniques can be adopted by a specific SMME in a business of manufacturing security products for the banks to better manage its material flow and improve its competitiveness. The research uses observation method to gather information to develop the current value stream map and identify the wasteful procedures. The also involves the interviewing of staff members that are involved in the material handling within the organisation. The results from the two processes are explained and the future value stream map incorporating the lean techniques is developed and presented to the organisation.
- Full Text:
- Date Issued: 2014
Improving school performance through effective SGB governance in previously disadvantaged schools
- Authors: Mbengashe, Andile
- Date: 2014
- Subjects: School boards -- South Africa , School-based management -- South Africa , School improvement programs -- South Africa , Academic achievement -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8910 , http://hdl.handle.net/10948/d1021050
- Description: The lack of the visible and practical involvement of parents in schools that are in previously disadvantaged communities is not only depriving the present learners and their parents of their democratic right to participate in shaping their future, but that of the coming generation and leaders of tomorrow as well. South Africa as a country is about twenty years into democracy and already the education system has been chopped and changed about four times but with no success. The schooling system in previously black communities is deteriorating. The government of the day has been prioritising education for about fifteen years now, the budget for education is equal to the budget for the whole country in some of the neighbouring countries like Zimbabwe but the quality and standard are far worse than in those countries. The cost of the current problems in education mostly in previously black township schools is far too much to imagine. The main challenge seems to be the nature, character, skills and capabilities of parents serving in school governing bodies. This study is so important because of the situation that exists in schools that are situated in historically disadvantaged communities where the parents who get elected to school governing bodies are still, despite workshops and training offered by the Department of Education, unable to manage and govern schools and thus render the school governing body ineffective. The Department of Education through its programmes does conduct governance, financial management and policy formulation workshops. These efforts from the government side do not seem to bear any fruit because parents, after attending the training and workshops are still unable to create well-managed and properly governed schools. The primary objective of this study is to improve the organisational performance of schools in previously disadvantaged communities in the Uitenhage District of the Department of Education situated in the Nelson Mandela Metropolitan Municipality by investigating how effective school governing body governance could contribute to such performance. More specifically, the study investigates the relationship between effective school governing body management, as a dependent variable, and parental/community involvement, finance and resource management, school governance, learner discipline/conduct, and quality education as independent variables. The population of the study was high school principals and school management team (SMT) members in the Nelson Mandela Metropolitan Municipality focusing mainly on historically or previously disadvantaged schools in the Uitenhage district of the Department of Education. The study used convenience sampling where seventeen (17) high schools were selected. In each school, school management team members and a principal were requested to fill in a questionnaire. In total 105 questionnaires were distributed and 85 were fully completed and returned. Questionnaires were collected, data captured and analysed and a report was written. The empirical results revealed the following weaknesses in the SGBs of high schools in the Uitenhage District of the Department of Education in the Nelson Mandela Bay Municipality: the SGBs do not effectively formulate school policies; the SGBs do not effectively provide support to educators in performing their professional duties; the SGBs are not fully involved in supplementing resources supplied by the state in order to improve quality of teaching and learning; and the schools are weak on community engagement. On the other hand, the following positive elements of SGBs were highlighted in the empirical results; the schools are rated good regarding the following variables/issues: quality of teaching and learning, utilisation of school resources, school governance, professionalism of staff and extra-mural activities; the SGBs know and participate in the academic and extra-mural programmes of the schools; the SGBs successfully prepare the annual budget for the schools; the SGBs are effectively governing the schools; the SGBs do appoint auditors to audit the school's books and financial statements; the schools have achieved audited financial statements without a disclaimer; the schools have a disciplinary committee that deals with the learner code of conduct and attends to disciplinary problems. The study highlights areas in school governance that should be improved, as well as recommendations on how to improve them. Recommendations for future research are also provided.
- Full Text:
- Date Issued: 2014
- Authors: Mbengashe, Andile
- Date: 2014
- Subjects: School boards -- South Africa , School-based management -- South Africa , School improvement programs -- South Africa , Academic achievement -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8910 , http://hdl.handle.net/10948/d1021050
- Description: The lack of the visible and practical involvement of parents in schools that are in previously disadvantaged communities is not only depriving the present learners and their parents of their democratic right to participate in shaping their future, but that of the coming generation and leaders of tomorrow as well. South Africa as a country is about twenty years into democracy and already the education system has been chopped and changed about four times but with no success. The schooling system in previously black communities is deteriorating. The government of the day has been prioritising education for about fifteen years now, the budget for education is equal to the budget for the whole country in some of the neighbouring countries like Zimbabwe but the quality and standard are far worse than in those countries. The cost of the current problems in education mostly in previously black township schools is far too much to imagine. The main challenge seems to be the nature, character, skills and capabilities of parents serving in school governing bodies. This study is so important because of the situation that exists in schools that are situated in historically disadvantaged communities where the parents who get elected to school governing bodies are still, despite workshops and training offered by the Department of Education, unable to manage and govern schools and thus render the school governing body ineffective. The Department of Education through its programmes does conduct governance, financial management and policy formulation workshops. These efforts from the government side do not seem to bear any fruit because parents, after attending the training and workshops are still unable to create well-managed and properly governed schools. The primary objective of this study is to improve the organisational performance of schools in previously disadvantaged communities in the Uitenhage District of the Department of Education situated in the Nelson Mandela Metropolitan Municipality by investigating how effective school governing body governance could contribute to such performance. More specifically, the study investigates the relationship between effective school governing body management, as a dependent variable, and parental/community involvement, finance and resource management, school governance, learner discipline/conduct, and quality education as independent variables. The population of the study was high school principals and school management team (SMT) members in the Nelson Mandela Metropolitan Municipality focusing mainly on historically or previously disadvantaged schools in the Uitenhage district of the Department of Education. The study used convenience sampling where seventeen (17) high schools were selected. In each school, school management team members and a principal were requested to fill in a questionnaire. In total 105 questionnaires were distributed and 85 were fully completed and returned. Questionnaires were collected, data captured and analysed and a report was written. The empirical results revealed the following weaknesses in the SGBs of high schools in the Uitenhage District of the Department of Education in the Nelson Mandela Bay Municipality: the SGBs do not effectively formulate school policies; the SGBs do not effectively provide support to educators in performing their professional duties; the SGBs are not fully involved in supplementing resources supplied by the state in order to improve quality of teaching and learning; and the schools are weak on community engagement. On the other hand, the following positive elements of SGBs were highlighted in the empirical results; the schools are rated good regarding the following variables/issues: quality of teaching and learning, utilisation of school resources, school governance, professionalism of staff and extra-mural activities; the SGBs know and participate in the academic and extra-mural programmes of the schools; the SGBs successfully prepare the annual budget for the schools; the SGBs are effectively governing the schools; the SGBs do appoint auditors to audit the school's books and financial statements; the schools have achieved audited financial statements without a disclaimer; the schools have a disciplinary committee that deals with the learner code of conduct and attends to disciplinary problems. The study highlights areas in school governance that should be improved, as well as recommendations on how to improve them. Recommendations for future research are also provided.
- Full Text:
- Date Issued: 2014
In vitro induction of cell death pathways by artemisia afra extract and isolation of an active compound, isoalantolactone
- Authors: Venables, Luanne
- Date: 2014
- Subjects: Medicinal plants -- South Africa , Cell death
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10363 , http://hdl.handle.net/10948/d1021087
- Description: Artemisia afra is one of the oldest, most well known and widely used traditional medicinal plants in South Africa. It is used to treat many different medical conditions, particularly respiratory and inflammatory ailments. There is no reported evidence of its use for the treatment of cancer but due to its reported cytotoxicity, an investigation of the mode of cell death induced by an ethanol A. afra extract using two cancer cell lines was done. IC50 values of 18.21 and 31.88 μg/mL of ethanol extracts were determined against U937 and HeLa cancer cells, respectively. An IC50 value of the aqueous extract was greater than 250 μg/mL. The ethanol extract was not cytotoxic against confluent control cell lines, Chang Liver and Vero cells. The effect of the cytotoxic ethanol A. afra extract on U937 and HeLa cells and their progression through the cell cycle, apoptosis and mitochondrial membrane potential was investigated. After 12 hours of treatment with A. afra a delay in G2/M phase of the cell cycle was evident. Apoptosis was confirmed using the TUNEL assay for DNA fragmentation, as well as fluorescent staining with annexin V-FITC. Apoptosis was evident with the positive control and A. afra treatment at 24 and 48 hours. JC-1 staining showed a decrease in mitochondrial membrane potential at 24 hours. It was deduced that A. afra ethanol extract induces caspase-dependent apoptosis in a mitochondrial dependent manner. Plants harbour many compounds that are not only useful to the plants but also to mankind. Many metabolites have been isolated from A. afra and their biological activity characterised. Due to observed apoptosis induction, isolation of cytotoxic compounds was done and a new sesquiterpene lactone from A. afra was isolated. Structural elucidation of the compound was done by IR, 1D and 2D NMR, CD and mass spectrometry and it was identified as isoalantolactone. HeLa cancer cells were treated with isoalantolactone and cytotoxicity was exhibited in a dose-dependent manner. A low IC50 value of 8.15 ± 1.16 μM was achieved. This study showed that isoalantolactone is partly responsible for the observed A. afra cytotoxicity. Due to the evidence of G2/M arrest, the anti-mitotic potential and the possible onset of mitotic catastrophe by A. afra and isoalantolactone was investigated. It was evident from various flow cytometric analysis of cyclin B1 and phospho-H3 and confocal microscopy that A. afra does possess anti-mitotic activity by causing hyperpolymerisation of tubulin and cells progress into the mitotic phase where M arrest is experienced. The anti-inflammatory activity of sesquiterpene lactones is well documented; however, the anti-inflammatory activity of A. afra is not. Here, it is reported that the production of NO and COX-2 protein levels in RAW 264.7 cells decrease in the presence of A. afra and isoalantolactone after stimulation with LPS. The activated NF-κB subunit, p65 was also investigated. The results suggest that A. afra and isoalantolactone inhibit p65 activation as a decrease in the activated subunit was evident. Thus, the results indicate that exposure to A. afra and isoalantolactone induces an anti-inflammatory response. In conclusion, this study shows, for the first time, the mechanism of induced apoptosis, the anti-mitotic and anti-inflammatory activity of A. afra and its isolated compound, isoalantolactone. It also proves that although extensive research may have been done on a particular plant, as with A. afra, more can be discovered leading to the identification of new compounds and integration of signalling pathways that can be exploited for the treatment of various diseases and ailments.
- Full Text:
- Date Issued: 2014
- Authors: Venables, Luanne
- Date: 2014
- Subjects: Medicinal plants -- South Africa , Cell death
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10363 , http://hdl.handle.net/10948/d1021087
- Description: Artemisia afra is one of the oldest, most well known and widely used traditional medicinal plants in South Africa. It is used to treat many different medical conditions, particularly respiratory and inflammatory ailments. There is no reported evidence of its use for the treatment of cancer but due to its reported cytotoxicity, an investigation of the mode of cell death induced by an ethanol A. afra extract using two cancer cell lines was done. IC50 values of 18.21 and 31.88 μg/mL of ethanol extracts were determined against U937 and HeLa cancer cells, respectively. An IC50 value of the aqueous extract was greater than 250 μg/mL. The ethanol extract was not cytotoxic against confluent control cell lines, Chang Liver and Vero cells. The effect of the cytotoxic ethanol A. afra extract on U937 and HeLa cells and their progression through the cell cycle, apoptosis and mitochondrial membrane potential was investigated. After 12 hours of treatment with A. afra a delay in G2/M phase of the cell cycle was evident. Apoptosis was confirmed using the TUNEL assay for DNA fragmentation, as well as fluorescent staining with annexin V-FITC. Apoptosis was evident with the positive control and A. afra treatment at 24 and 48 hours. JC-1 staining showed a decrease in mitochondrial membrane potential at 24 hours. It was deduced that A. afra ethanol extract induces caspase-dependent apoptosis in a mitochondrial dependent manner. Plants harbour many compounds that are not only useful to the plants but also to mankind. Many metabolites have been isolated from A. afra and their biological activity characterised. Due to observed apoptosis induction, isolation of cytotoxic compounds was done and a new sesquiterpene lactone from A. afra was isolated. Structural elucidation of the compound was done by IR, 1D and 2D NMR, CD and mass spectrometry and it was identified as isoalantolactone. HeLa cancer cells were treated with isoalantolactone and cytotoxicity was exhibited in a dose-dependent manner. A low IC50 value of 8.15 ± 1.16 μM was achieved. This study showed that isoalantolactone is partly responsible for the observed A. afra cytotoxicity. Due to the evidence of G2/M arrest, the anti-mitotic potential and the possible onset of mitotic catastrophe by A. afra and isoalantolactone was investigated. It was evident from various flow cytometric analysis of cyclin B1 and phospho-H3 and confocal microscopy that A. afra does possess anti-mitotic activity by causing hyperpolymerisation of tubulin and cells progress into the mitotic phase where M arrest is experienced. The anti-inflammatory activity of sesquiterpene lactones is well documented; however, the anti-inflammatory activity of A. afra is not. Here, it is reported that the production of NO and COX-2 protein levels in RAW 264.7 cells decrease in the presence of A. afra and isoalantolactone after stimulation with LPS. The activated NF-κB subunit, p65 was also investigated. The results suggest that A. afra and isoalantolactone inhibit p65 activation as a decrease in the activated subunit was evident. Thus, the results indicate that exposure to A. afra and isoalantolactone induces an anti-inflammatory response. In conclusion, this study shows, for the first time, the mechanism of induced apoptosis, the anti-mitotic and anti-inflammatory activity of A. afra and its isolated compound, isoalantolactone. It also proves that although extensive research may have been done on a particular plant, as with A. afra, more can be discovered leading to the identification of new compounds and integration of signalling pathways that can be exploited for the treatment of various diseases and ailments.
- Full Text:
- Date Issued: 2014
Incapacity for poor work performance in the education sector
- Authors: Faker, Mogamat Salie
- Date: 2014
- Subjects: Capacity and disability , Employees -- Dismissal of , Employees -- Rating of -- Law and legislation
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10252 , http://hdl.handle.net/10948/d1020209
- Description: According to the latest Education Statistics Report published by the Department of Basic Education in March 2013, there were 12 680 829 learners and students in the basic education system in 2011, who attended 30 992 education institutions and were served by 441 128 educators. The vision of the Department of Basic Education is of a South Africa in which all our people have access to lifelong learning and education and training, which will, in turn, contribute towards improving the quality of life. Ultimately this will influence the building of a peaceful, prosperous and democratic South Africa. The emphasis is on excellence. Therefore maintaining high standards of performance and professionalism is a national imperative. However, this has not always been the case in terms of performance. For more than a decade we have witnessed dismal results in literacy and numeracy. This was accompanied by a low throughput rate. Despite the poor matric, literacy and numeracy results in South Africa as well as the low throughput rate, no teacher has been formally charged for poor performance in the last two decades. South Africa’s education budget is regarded as one of the highest in the developing world. Since 1993 the education budget has also grown substantially. South Africa’s education expenditure on education has grown from R30 billion in 1994/05 to R101 billion in 2007/08. Spending on education grew even further from R207 billion in 2012/13 to a projected R236 billion in 2014/15. Additional allocations of R18.8 billion over the medium term are accommodated, including equalisation of learner subsidies for no-fee schools and expanded access to grade R.6 Over the rest of the medium-term-expenditure framework (MTEF),7 spending on education, sport and culture will amount to R233 billion in 2013/14. The investment in education has not yet yielded the desired results and the outcome of education is not in keeping with the substantial input. This crisis in education is one of the major challenges facing Government, Administrators, educators, parents and children of today. According to Spaull,9 the South African government spends the equivalent of $1225 (R12440.26)10 per child on primary education, yet accomplishes less than the government of Kenya which spends only the equivalent of $258 (R2620.80)11 per child. Various reasons such as poverty, management, leadership, imbalances of the past, two unequal education systems, poor management, training and development, non-accountability, role of government and unions, have been identified for the poor state of our education system. However, what is noticeably absent and hardly mentioned in any of the position papers, is that not a single teacher has been held accountable and dismissed for incapacity for the poor performance in the education sector. Unfortunately, there is no record in any of the provincial education departments’ annual reports that a teacher has been dismissed or at least placed on a formal programme of incapacity for poor performance. Therefore, we have to ask the question: “Are we getting value for money?".
- Full Text:
- Date Issued: 2014
- Authors: Faker, Mogamat Salie
- Date: 2014
- Subjects: Capacity and disability , Employees -- Dismissal of , Employees -- Rating of -- Law and legislation
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10252 , http://hdl.handle.net/10948/d1020209
- Description: According to the latest Education Statistics Report published by the Department of Basic Education in March 2013, there were 12 680 829 learners and students in the basic education system in 2011, who attended 30 992 education institutions and were served by 441 128 educators. The vision of the Department of Basic Education is of a South Africa in which all our people have access to lifelong learning and education and training, which will, in turn, contribute towards improving the quality of life. Ultimately this will influence the building of a peaceful, prosperous and democratic South Africa. The emphasis is on excellence. Therefore maintaining high standards of performance and professionalism is a national imperative. However, this has not always been the case in terms of performance. For more than a decade we have witnessed dismal results in literacy and numeracy. This was accompanied by a low throughput rate. Despite the poor matric, literacy and numeracy results in South Africa as well as the low throughput rate, no teacher has been formally charged for poor performance in the last two decades. South Africa’s education budget is regarded as one of the highest in the developing world. Since 1993 the education budget has also grown substantially. South Africa’s education expenditure on education has grown from R30 billion in 1994/05 to R101 billion in 2007/08. Spending on education grew even further from R207 billion in 2012/13 to a projected R236 billion in 2014/15. Additional allocations of R18.8 billion over the medium term are accommodated, including equalisation of learner subsidies for no-fee schools and expanded access to grade R.6 Over the rest of the medium-term-expenditure framework (MTEF),7 spending on education, sport and culture will amount to R233 billion in 2013/14. The investment in education has not yet yielded the desired results and the outcome of education is not in keeping with the substantial input. This crisis in education is one of the major challenges facing Government, Administrators, educators, parents and children of today. According to Spaull,9 the South African government spends the equivalent of $1225 (R12440.26)10 per child on primary education, yet accomplishes less than the government of Kenya which spends only the equivalent of $258 (R2620.80)11 per child. Various reasons such as poverty, management, leadership, imbalances of the past, two unequal education systems, poor management, training and development, non-accountability, role of government and unions, have been identified for the poor state of our education system. However, what is noticeably absent and hardly mentioned in any of the position papers, is that not a single teacher has been held accountable and dismissed for incapacity for the poor performance in the education sector. Unfortunately, there is no record in any of the provincial education departments’ annual reports that a teacher has been dismissed or at least placed on a formal programme of incapacity for poor performance. Therefore, we have to ask the question: “Are we getting value for money?".
- Full Text:
- Date Issued: 2014
Income generating projects in the agricultural sector in securing, maintaining and providing sustainable livelihoods : a case study of two projects in the Lukhanji Local Municipality
- Authors: Sishuba, Siphokazi
- Date: 2014
- Subjects: Agricultural development projects -- South Africa -- Eastern Cape , Sustainable development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9213 , http://hdl.handle.net/10948/d1020794
- Description: The province consists of seven district municipalities, which include Nelson Mandela Bay Metropolitan Municipality, Cacadu, Amathole, Chris Hani, Ukhahlamba, OR Tambo, and Alfred Ndzo. It is comprised of seven local municipalities: King Sabata Dalindyebo, Nyanden, Qaukeni, Mbizana, Mhlontlo, Port St John’s, and Ntabankulu. According to Bradshaw et al. (2000:4), the Eastern Cape has the second highest poverty level of all provinces in South Africa. Forty seven percent of households are below the poverty line, a figure based on imputed monthly expenditure of R800 or less (USSA, 2000b). In addition, the province has the highest provincial unemployment rate (55 percent) in the country (SSA, 2003). Inequitable growth and development characterise this province. Due to the high level of poverty, the government has formulated strategies, such as income generating projects (IGPs), to address the need for improved living conditions, better skills and more self-employment opportunities. The income generating project as a concept seems a convincing strategy at first glance. However, there is a need to evaluate the effectiveness of income generating projects in improving living conditions and providing sustainable livelihoods. In light of this, the researcher undertook a study to evaluate these projects in order to determine the extent to which IGPs as mechanisms provide sustainable livelihoods for resource–poor rural people in the Lukhanji Local Municipality. The researcher used a combined method approach; the study includes both quantitative and qualitative research designs in an attempt to gain an in-depth understanding of the problem. The investigator employed questionnaires and interviews to gather information. Participants were project members, project leaders and key informants, as these people were contributing builders and mangers of the project. Findings reveal a lack of sustainability in income generating projects, as numerous project members left the projects studied. A lack of income to sustain project members during their membership was a common complaint. Further, a lack of skills is a crucial contributing factor, as members of another project complained of a lack of training of project members.
- Full Text:
- Date Issued: 2014
- Authors: Sishuba, Siphokazi
- Date: 2014
- Subjects: Agricultural development projects -- South Africa -- Eastern Cape , Sustainable development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9213 , http://hdl.handle.net/10948/d1020794
- Description: The province consists of seven district municipalities, which include Nelson Mandela Bay Metropolitan Municipality, Cacadu, Amathole, Chris Hani, Ukhahlamba, OR Tambo, and Alfred Ndzo. It is comprised of seven local municipalities: King Sabata Dalindyebo, Nyanden, Qaukeni, Mbizana, Mhlontlo, Port St John’s, and Ntabankulu. According to Bradshaw et al. (2000:4), the Eastern Cape has the second highest poverty level of all provinces in South Africa. Forty seven percent of households are below the poverty line, a figure based on imputed monthly expenditure of R800 or less (USSA, 2000b). In addition, the province has the highest provincial unemployment rate (55 percent) in the country (SSA, 2003). Inequitable growth and development characterise this province. Due to the high level of poverty, the government has formulated strategies, such as income generating projects (IGPs), to address the need for improved living conditions, better skills and more self-employment opportunities. The income generating project as a concept seems a convincing strategy at first glance. However, there is a need to evaluate the effectiveness of income generating projects in improving living conditions and providing sustainable livelihoods. In light of this, the researcher undertook a study to evaluate these projects in order to determine the extent to which IGPs as mechanisms provide sustainable livelihoods for resource–poor rural people in the Lukhanji Local Municipality. The researcher used a combined method approach; the study includes both quantitative and qualitative research designs in an attempt to gain an in-depth understanding of the problem. The investigator employed questionnaires and interviews to gather information. Participants were project members, project leaders and key informants, as these people were contributing builders and mangers of the project. Findings reveal a lack of sustainability in income generating projects, as numerous project members left the projects studied. A lack of income to sustain project members during their membership was a common complaint. Further, a lack of skills is a crucial contributing factor, as members of another project complained of a lack of training of project members.
- Full Text:
- Date Issued: 2014
Incorporating surrogate species and seascape connectivity to improve marine conservation outcomes
- Olds, Andrew D, Connolly, Rod M, Pitt, Kylie A, Maxwell, Paul S, Aswani, Shankar, Albert, Simon
- Authors: Olds, Andrew D , Connolly, Rod M , Pitt, Kylie A , Maxwell, Paul S , Aswani, Shankar , Albert, Simon
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124722 , vital:35655 , https://doi.10.1111/cobi.12242
- Description: Conservation focuses on maintaining biodiversity and ecosystem functioning, but gaps in our knowledge of species biology and ecological processes often impede progress. For this reason, focal species and habitats are used as surrogates for multispecies conservation, but species-based approaches are not widely adopted in marine ecosystems. Reserves in the Solomon Islands were designed on the basis of local ecological knowledge to conserve bumphead parrotfish (Bolbometopon muricatum) and to protect food security and ecosystem functioning. Bumphead parrotfish are an iconic threatened species and may be a useful surrogate for multispecies conservation. They move across tropical seascapes throughout their life history, in a pattern of habitat use that is shared with many other species. We examined their value as a conservation surrogate and assessed the importance of seascape connectivity (i.e., the physical connectedness of patches in the seascape) among reefs, mangroves, and seagrass to marine reserve performance. Reserves were designed for bumphead parrotfish, but also enhanced the abundance of other species. Integration of local ecological knowledge and seascape connectivity enhanced the abundance of 17 other harvested fish species in local reserves. This result has important implications for ecosystem functioning and local villagers because many of these species perform important ecological processes and provide the foundation for extensive subsistence fisheries. Our findings suggest greater success in maintaining and restoring marine ecosystems may be achieved when they are managed to conserve surrogate species and preserve functional seascape connections.
- Full Text:
- Date Issued: 2014
- Authors: Olds, Andrew D , Connolly, Rod M , Pitt, Kylie A , Maxwell, Paul S , Aswani, Shankar , Albert, Simon
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124722 , vital:35655 , https://doi.10.1111/cobi.12242
- Description: Conservation focuses on maintaining biodiversity and ecosystem functioning, but gaps in our knowledge of species biology and ecological processes often impede progress. For this reason, focal species and habitats are used as surrogates for multispecies conservation, but species-based approaches are not widely adopted in marine ecosystems. Reserves in the Solomon Islands were designed on the basis of local ecological knowledge to conserve bumphead parrotfish (Bolbometopon muricatum) and to protect food security and ecosystem functioning. Bumphead parrotfish are an iconic threatened species and may be a useful surrogate for multispecies conservation. They move across tropical seascapes throughout their life history, in a pattern of habitat use that is shared with many other species. We examined their value as a conservation surrogate and assessed the importance of seascape connectivity (i.e., the physical connectedness of patches in the seascape) among reefs, mangroves, and seagrass to marine reserve performance. Reserves were designed for bumphead parrotfish, but also enhanced the abundance of other species. Integration of local ecological knowledge and seascape connectivity enhanced the abundance of 17 other harvested fish species in local reserves. This result has important implications for ecosystem functioning and local villagers because many of these species perform important ecological processes and provide the foundation for extensive subsistence fisheries. Our findings suggest greater success in maintaining and restoring marine ecosystems may be achieved when they are managed to conserve surrogate species and preserve functional seascape connections.
- Full Text:
- Date Issued: 2014
Indian secondary school youths' understanding of sexual violence in their community in the age of HIV and AIDS: a participatory video approach
- Authors: Mahadev, Rekha
- Date: 2014
- Subjects: Sex crimes , Indian youth -- Education (Secondary) , AIDS (Disease) , HIV infections
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/7522 , vital:21793
- Description: This study focuses on Indian secondary school youths’ understanding of sexual violence in their community in the age of HIV and AIDS, and the contribution that participatory video can make to address sexual violence. South Africa, apart from having the highest HIV prevalence in the world, also has the highest incidence of sexual violence. South African society often appears complacent about the high levels of sexual violence. In the Indian community, especially among the youth, sexual violence is also cause for concern. Much effort and energy has been expended in educating learners about sexual violence and HIV and AIDS with the objective of raising awareness of the dangers of engaging in risky sexual behaviour, and ultimately to empower and influence positive behaviour change. Because HIV prevalence in the Indian population is on the rise, Indian youth’s particular vulnerability is the reason for focusing on how they understand sexual violence in the age of AIDS. Besides the paucity of research on Indian youth and sexual violence, the methodologies which have been used produced research which is descriptive in nature and hence a methodological shift from traditional methodologies to a participatory visual methodology which has the potential for critically engaging the Indian youth on the issues of sexual violence, could contribute to research which has a social change focus. This qualitative research therefore uses a visual participatory methodology within a critical research paradigm, to explore and contribute to addressing the problem of sexual violence in the age of HIV and AIDS. The participants in the study, a sample of 20 Indian learners (10 boys and 10 girls), from a secondary school in Durban which has predominantly Indian learners, was purposively selected from Grade 11 classes. Participatory video enabled them to voice how they understand sexual violence and in doing so move towards reflecting on their own agency. The theory of triadic influence with its three streams, i.e. cultural attitudinal, social normative and intrapersonal, was used to make meaning of the findings. It also provided a frame for a fourth path, namely the preventive intervene. While participatory video enabled exploring Indian youths’ understanding of sexual violence in their community in the age of AIDS, it at the same time enabled them to reflect on, and perhaps begin to disrupt their understanding of the cultural attitudinal, social normative and the intrapersonal influences and how these influence their thinking about sexual violence. Two a priori themes were established prior to the analysis, to respond to how Indian youths understand sexual violence in the age of AIDS, and how participatory video can address sexual violence. The findings suggest that their understanding of sexual violence stems from a culture of concealment in which veiling sexual violence is the norm; that the vulnerability of youth increases as the experience of pressure from peers to engage in sexual violence increases; and that sexual violence is traumatising. The use of participatory video increased the youths’ reflexivity and created a space for them to explore how to take action. The findings imply that addressing sexual violence with Indian youth should begin with interrogating the cultural norms of masculinities and femininities, and the cultural practices rooted in traditional structures of the family and community which perpetuate gender disparities and the restriction of the autonomy of women and girls. Addressing issues of vulnerability and sexual violence should be the focus of all school and community interventions to ensure learners’ well-being and ability to resist negative peer pressure. These interventions should encourage self-reflection and raise social awareness through active participation and in so doing bring about social change in the Indian community. Vigorous participatory interventions which draw on the voices of the Indian youth as agents of social change in addressing sexual violence in the age of HIV and AIDS, is therefore urgent. The significance of this study as research as intervention is useful in enabling the exploration - with the Indian youth - of how cultural and religious norms, gender disparity, Indian masculinities and femininities, and social peer pressure feed into youth’s understanding of sexual violence and at the same time getting them to begin rethinking, challenging and disrupting these understandings where necessary. The study demonstrates that engaging youth affords them an opportunity to draw from their own experiences and through their own voices and actions create knowledge through participatory video, thereby making a contribution to visual methodologies and research around sexual violence and HIV and AIDS in their world.
- Full Text:
- Date Issued: 2014
- Authors: Mahadev, Rekha
- Date: 2014
- Subjects: Sex crimes , Indian youth -- Education (Secondary) , AIDS (Disease) , HIV infections
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/7522 , vital:21793
- Description: This study focuses on Indian secondary school youths’ understanding of sexual violence in their community in the age of HIV and AIDS, and the contribution that participatory video can make to address sexual violence. South Africa, apart from having the highest HIV prevalence in the world, also has the highest incidence of sexual violence. South African society often appears complacent about the high levels of sexual violence. In the Indian community, especially among the youth, sexual violence is also cause for concern. Much effort and energy has been expended in educating learners about sexual violence and HIV and AIDS with the objective of raising awareness of the dangers of engaging in risky sexual behaviour, and ultimately to empower and influence positive behaviour change. Because HIV prevalence in the Indian population is on the rise, Indian youth’s particular vulnerability is the reason for focusing on how they understand sexual violence in the age of AIDS. Besides the paucity of research on Indian youth and sexual violence, the methodologies which have been used produced research which is descriptive in nature and hence a methodological shift from traditional methodologies to a participatory visual methodology which has the potential for critically engaging the Indian youth on the issues of sexual violence, could contribute to research which has a social change focus. This qualitative research therefore uses a visual participatory methodology within a critical research paradigm, to explore and contribute to addressing the problem of sexual violence in the age of HIV and AIDS. The participants in the study, a sample of 20 Indian learners (10 boys and 10 girls), from a secondary school in Durban which has predominantly Indian learners, was purposively selected from Grade 11 classes. Participatory video enabled them to voice how they understand sexual violence and in doing so move towards reflecting on their own agency. The theory of triadic influence with its three streams, i.e. cultural attitudinal, social normative and intrapersonal, was used to make meaning of the findings. It also provided a frame for a fourth path, namely the preventive intervene. While participatory video enabled exploring Indian youths’ understanding of sexual violence in their community in the age of AIDS, it at the same time enabled them to reflect on, and perhaps begin to disrupt their understanding of the cultural attitudinal, social normative and the intrapersonal influences and how these influence their thinking about sexual violence. Two a priori themes were established prior to the analysis, to respond to how Indian youths understand sexual violence in the age of AIDS, and how participatory video can address sexual violence. The findings suggest that their understanding of sexual violence stems from a culture of concealment in which veiling sexual violence is the norm; that the vulnerability of youth increases as the experience of pressure from peers to engage in sexual violence increases; and that sexual violence is traumatising. The use of participatory video increased the youths’ reflexivity and created a space for them to explore how to take action. The findings imply that addressing sexual violence with Indian youth should begin with interrogating the cultural norms of masculinities and femininities, and the cultural practices rooted in traditional structures of the family and community which perpetuate gender disparities and the restriction of the autonomy of women and girls. Addressing issues of vulnerability and sexual violence should be the focus of all school and community interventions to ensure learners’ well-being and ability to resist negative peer pressure. These interventions should encourage self-reflection and raise social awareness through active participation and in so doing bring about social change in the Indian community. Vigorous participatory interventions which draw on the voices of the Indian youth as agents of social change in addressing sexual violence in the age of HIV and AIDS, is therefore urgent. The significance of this study as research as intervention is useful in enabling the exploration - with the Indian youth - of how cultural and religious norms, gender disparity, Indian masculinities and femininities, and social peer pressure feed into youth’s understanding of sexual violence and at the same time getting them to begin rethinking, challenging and disrupting these understandings where necessary. The study demonstrates that engaging youth affords them an opportunity to draw from their own experiences and through their own voices and actions create knowledge through participatory video, thereby making a contribution to visual methodologies and research around sexual violence and HIV and AIDS in their world.
- Full Text:
- Date Issued: 2014
Indigenous knowledge and climate change : insights from Muzarabani, Zimbabwe
- Authors: Chanza, Nelson
- Date: 2014
- Subjects: Indigenous peoples – Ecology – Zimbabwe -- Centenary District , Climatic changes -- Social aspects – Zimbabwe -- Centenary District , Climatic changes – Zimbabwe -- Centenary District
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10671 , http://hdl.handle.net/10948/d1020299
- Description: Discourse characterising climate change has largely revolved around aspects within the realm of impact identification, mitigation and adaptation. Apparently, a burgeoning appetite to examine the role of indigenous knowledge (IK) now confronts the fronts of climate science, policy and practice. The surge in attention to localbased knowledge is attributed to growing challenges posed by change and variability in the climate system. This study argues that indigenous-based knowledge is capable of filling knowledge gaps and validating current understanding about climate change particularly at local levels. Essentially, the paucity of knowledge about local climatic events can be circumvented by engaging indigenous ‘scientists’ whose many years of direct contact with the environment have equipped them with the indispensable knowledge, skills and experiences to understand the same. Primarily, the thesis’ objectives were threefold. One, it captured useful indicators of climate change and variability from the understanding of the indigenous people, which can also be used to enhance understanding of climate change impacts.Two, it drew from the knowledge, experiences, skills and practices of the locals in order to inform appropriate community level mitigation and adaptation interventions. And, three, it highlighted the fact that knowledge of the indigenous people can be used to direct research on climate change. The study area (Muzarabani in Zimbabwe) experiences recurrent droughts and floods and its villagers rely predominantly on climate-sensitive livelihoods. As such, it was selected to provide a reliable case on IK practices and experiences of the people witnessing climatic events. The study was framed within an epistemological and methodological configuration of emancipatory pedagogy that looks at the generators of climate knowledge as ‘scientists’ in their own right. A qualitative elicitation interviewing technique involving in-depth discussions with traditional leaders and elderly knowledgeable citizens was conducted. The participants were selected through chain referrals until the level of theoretical saturation. In addition, directed field observations, document analysis and key informant interviews with other respondents selected through theoretical sampling enhanced the robustness of data acquisition methods. Group-based participatory data analysis and reflexive pragmatism also enhanced rigour and quality of research findings intended to balance between the strictures of the scientific audience and the views of the knowledge generators. Three key themes were derived from IK-climate change linkages as: indigenous based indicators of climate change, indigenous-based mitigation and indigenous based adaptation. A range of indigenous-based indicators identified pointed to a progressively drier climate with shorter growing seasons that are also punctuated by mid-season dry spells. A trend towards increased desiccation of water bodies (rivers, ponds and vleis) was further observed. There is also an upsurge in the abundance and pestiferous nature of Macrotermes spp, Quelea quelea and Acanthoplus discoidalis, which are most likely related to climate change. Some of these indicators closely match with those used in mainstream climate science and they also serve to understand climate change impacts at a finer local level of analysis. Indigenous-based mitigation is mainly driven by the notion of sacredness where the locals regard forestry, certain trees and vleis as sacrosanct. Tampering with these is believed to upset the spirits who have powers to influence climate. Opportunities associated with IK deployment in climate mitigation are understood from the viewpoint of enhancing greenhouse gas (GHG) sinks and that of reducing vulnerability to extreme climatic events. Specifically, this can be achieved through enhancing GHG sequestration through forestry and land-use management initiatives; that is, reducing emissions from deforestation and forestry related degradation (REDD+) and Land Use and Land-Use Cover and Forestry (LULUCF). These two are the dominant schemes adopted by the Intergovernmental Panel on Climate Change (IPCC) to govern climate mitigation. Indigenous disaster risk management (DRM) strategies abound in drought, famine, flood and violent storms through various forms such as Zunde raMambo, nhimbe, rain-making ceremonies and community early warning systems (EWS).The locals in Muzarabani are not passive observers of the changing climate system. Increasing environmental risks necessitates them to devise countermeasures for responding to climatic stimuli with the intention of minimising harm and/or enhancing the benefits brought about by the same. Thus, a portfolio of IK-based adaptation strategies best described as an assortment of short-term coping practices and longterm adaptive strategies were identified. These range from exploitation of ecosystem services, agricultural based interventions, riverine farming, traditional phonological knowledge (TPK) to migration. Therefore, it was revealed that community-based adaptation (CBA) can adequately leverage on IK to improve adaptive capacity and build community resilience against climate change. Clearly, the complementary role of indigenous-based knowledge cannot be disputed, given the demonstrated range of applications from identifying several indicators of change and variability in the climate system, examination of climate change impacts, to identification and assessment of mitigation and adaptation options. The study advises that exogenous climate interventions need to be congruent with indigenous based strategies to avoid maladaptation. To the climate research community therefore, it should be realised that IK is useful both as leads and as baseline knowledge for future work on the impacts of climate change, and in the assessment of climate interventions. In this regard, the remaining challenge is to formulate a framework of constructive dialogue between indigenous scientists and conventional scientists so as to make sure that the mutual benefits of the two knowledge forms are adequately harnessed. Handled well, such collaborative effort would ensure enhanced climate change knowledge for successful mitigation and adaptation strategies. Handled poorly, there is a risk that the developmental needs of communities exposed to climatic events would not be addressed.
- Full Text:
- Date Issued: 2014
- Authors: Chanza, Nelson
- Date: 2014
- Subjects: Indigenous peoples – Ecology – Zimbabwe -- Centenary District , Climatic changes -- Social aspects – Zimbabwe -- Centenary District , Climatic changes – Zimbabwe -- Centenary District
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10671 , http://hdl.handle.net/10948/d1020299
- Description: Discourse characterising climate change has largely revolved around aspects within the realm of impact identification, mitigation and adaptation. Apparently, a burgeoning appetite to examine the role of indigenous knowledge (IK) now confronts the fronts of climate science, policy and practice. The surge in attention to localbased knowledge is attributed to growing challenges posed by change and variability in the climate system. This study argues that indigenous-based knowledge is capable of filling knowledge gaps and validating current understanding about climate change particularly at local levels. Essentially, the paucity of knowledge about local climatic events can be circumvented by engaging indigenous ‘scientists’ whose many years of direct contact with the environment have equipped them with the indispensable knowledge, skills and experiences to understand the same. Primarily, the thesis’ objectives were threefold. One, it captured useful indicators of climate change and variability from the understanding of the indigenous people, which can also be used to enhance understanding of climate change impacts.Two, it drew from the knowledge, experiences, skills and practices of the locals in order to inform appropriate community level mitigation and adaptation interventions. And, three, it highlighted the fact that knowledge of the indigenous people can be used to direct research on climate change. The study area (Muzarabani in Zimbabwe) experiences recurrent droughts and floods and its villagers rely predominantly on climate-sensitive livelihoods. As such, it was selected to provide a reliable case on IK practices and experiences of the people witnessing climatic events. The study was framed within an epistemological and methodological configuration of emancipatory pedagogy that looks at the generators of climate knowledge as ‘scientists’ in their own right. A qualitative elicitation interviewing technique involving in-depth discussions with traditional leaders and elderly knowledgeable citizens was conducted. The participants were selected through chain referrals until the level of theoretical saturation. In addition, directed field observations, document analysis and key informant interviews with other respondents selected through theoretical sampling enhanced the robustness of data acquisition methods. Group-based participatory data analysis and reflexive pragmatism also enhanced rigour and quality of research findings intended to balance between the strictures of the scientific audience and the views of the knowledge generators. Three key themes were derived from IK-climate change linkages as: indigenous based indicators of climate change, indigenous-based mitigation and indigenous based adaptation. A range of indigenous-based indicators identified pointed to a progressively drier climate with shorter growing seasons that are also punctuated by mid-season dry spells. A trend towards increased desiccation of water bodies (rivers, ponds and vleis) was further observed. There is also an upsurge in the abundance and pestiferous nature of Macrotermes spp, Quelea quelea and Acanthoplus discoidalis, which are most likely related to climate change. Some of these indicators closely match with those used in mainstream climate science and they also serve to understand climate change impacts at a finer local level of analysis. Indigenous-based mitigation is mainly driven by the notion of sacredness where the locals regard forestry, certain trees and vleis as sacrosanct. Tampering with these is believed to upset the spirits who have powers to influence climate. Opportunities associated with IK deployment in climate mitigation are understood from the viewpoint of enhancing greenhouse gas (GHG) sinks and that of reducing vulnerability to extreme climatic events. Specifically, this can be achieved through enhancing GHG sequestration through forestry and land-use management initiatives; that is, reducing emissions from deforestation and forestry related degradation (REDD+) and Land Use and Land-Use Cover and Forestry (LULUCF). These two are the dominant schemes adopted by the Intergovernmental Panel on Climate Change (IPCC) to govern climate mitigation. Indigenous disaster risk management (DRM) strategies abound in drought, famine, flood and violent storms through various forms such as Zunde raMambo, nhimbe, rain-making ceremonies and community early warning systems (EWS).The locals in Muzarabani are not passive observers of the changing climate system. Increasing environmental risks necessitates them to devise countermeasures for responding to climatic stimuli with the intention of minimising harm and/or enhancing the benefits brought about by the same. Thus, a portfolio of IK-based adaptation strategies best described as an assortment of short-term coping practices and longterm adaptive strategies were identified. These range from exploitation of ecosystem services, agricultural based interventions, riverine farming, traditional phonological knowledge (TPK) to migration. Therefore, it was revealed that community-based adaptation (CBA) can adequately leverage on IK to improve adaptive capacity and build community resilience against climate change. Clearly, the complementary role of indigenous-based knowledge cannot be disputed, given the demonstrated range of applications from identifying several indicators of change and variability in the climate system, examination of climate change impacts, to identification and assessment of mitigation and adaptation options. The study advises that exogenous climate interventions need to be congruent with indigenous based strategies to avoid maladaptation. To the climate research community therefore, it should be realised that IK is useful both as leads and as baseline knowledge for future work on the impacts of climate change, and in the assessment of climate interventions. In this regard, the remaining challenge is to formulate a framework of constructive dialogue between indigenous scientists and conventional scientists so as to make sure that the mutual benefits of the two knowledge forms are adequately harnessed. Handled well, such collaborative effort would ensure enhanced climate change knowledge for successful mitigation and adaptation strategies. Handled poorly, there is a risk that the developmental needs of communities exposed to climatic events would not be addressed.
- Full Text:
- Date Issued: 2014
Indigenous People’s Detection of Rapid Ecological Change
- Lauer, Matthew, Aswani, Shankar
- Authors: Lauer, Matthew , Aswani, Shankar
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124811 , vital:35699 , https://doi.10.1111/cobi.12250
- Description: When sudden catastrophic events occur, it becomes critical for coastal communities to detect and respond to environmental transformations because failure to do so may undermine overall ecosystem resilience and threaten people’s livelihoods. We therefore asked how capable of detecting rapid ecological change following massive environmental disruptions local, indigenous people are. We assessed the direction and periodicity of experimental learning of people in the Western Solomon Islands after a tsunami in 2007. We compared the results of marine science surveys with local ecological knowledge of the benthos across 3 affected villages and 3 periods before and after the tsunami. We sought to determine how people recognize biophysical changes in the environment before and after catastrophic events such as earthquakes and tsunamis and whether people have the ability to detect ecological changes over short time scales or need longer time scales to recognize changes. Indigenous people were able to detect changes in the benthos over time. Detection levels differed between marine science surveys and local ecological knowledge sources over time, but overall patterns of statistically significant detection of change were evident for various habitats. Our findings have implications for marine conservation, coastal management policies, and disaster-relief efforts because when people are able to detect ecological changes, this, in turn, affects how they exploit and manage their marine resources.
- Full Text:
- Date Issued: 2014
- Authors: Lauer, Matthew , Aswani, Shankar
- Date: 2014
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124811 , vital:35699 , https://doi.10.1111/cobi.12250
- Description: When sudden catastrophic events occur, it becomes critical for coastal communities to detect and respond to environmental transformations because failure to do so may undermine overall ecosystem resilience and threaten people’s livelihoods. We therefore asked how capable of detecting rapid ecological change following massive environmental disruptions local, indigenous people are. We assessed the direction and periodicity of experimental learning of people in the Western Solomon Islands after a tsunami in 2007. We compared the results of marine science surveys with local ecological knowledge of the benthos across 3 affected villages and 3 periods before and after the tsunami. We sought to determine how people recognize biophysical changes in the environment before and after catastrophic events such as earthquakes and tsunamis and whether people have the ability to detect ecological changes over short time scales or need longer time scales to recognize changes. Indigenous people were able to detect changes in the benthos over time. Detection levels differed between marine science surveys and local ecological knowledge sources over time, but overall patterns of statistically significant detection of change were evident for various habitats. Our findings have implications for marine conservation, coastal management policies, and disaster-relief efforts because when people are able to detect ecological changes, this, in turn, affects how they exploit and manage their marine resources.
- Full Text:
- Date Issued: 2014
Indium phthalocyanine–CdSe/ZnS quantum dots nanocomposites showing size dependent and near ideal optical limiting behaviour
- Sanusi, Kayode, Nyokong, Tebello
- Authors: Sanusi, Kayode , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/189921 , vital:44947 , xlink:href="https://doi.org/10.1016/j.optmat.2014.09.021"
- Description: Indium phthalocyanine–CdSe/ZnS quantum dots (QDs) nanocomposites (InPc–CdSe/ZnS) of three sizes (5.57, 8.12 and 8.75 nm) were synthesized according to known procedures. The particle size of the CdSe/ZnS QDs alone are 3.95, 6.02, and 6.66 nm, and are denoted as QD1, QD2 and QD3 respectively. The nonlinear absorption (NLA) properties of the nanoconjugates (InPc–CdSe/ZnS) were investigated with nanosecond laser radiation at 532 nm wavelength. Enhanced NLA properties compared to the InPc alone were observed in the conjugates. The NLA was found to increase with the size of the CdSe/ZnS particles attached to the phthalocyanine. The observed increase was due to the availability of more free-carrier ions in the larger QDs, thus giving rise to the enhanced free-carrier absorption. The measured free-carrier absorption cross-sections (σFCA) are 1.10, 1.65 and 1.95 (×10−19 cm2) for InPc-QD1, InPc-QD2 and InPc-QD3 respectively. The nanoconjugates (InPc–CdSe/ZnS) showed a much lower threshold for optical limiting together with a much lower transmission at high fluences, than the previously reported nanocomposite limiters.
- Full Text:
- Date Issued: 2014
- Authors: Sanusi, Kayode , Nyokong, Tebello
- Date: 2014
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/189921 , vital:44947 , xlink:href="https://doi.org/10.1016/j.optmat.2014.09.021"
- Description: Indium phthalocyanine–CdSe/ZnS quantum dots (QDs) nanocomposites (InPc–CdSe/ZnS) of three sizes (5.57, 8.12 and 8.75 nm) were synthesized according to known procedures. The particle size of the CdSe/ZnS QDs alone are 3.95, 6.02, and 6.66 nm, and are denoted as QD1, QD2 and QD3 respectively. The nonlinear absorption (NLA) properties of the nanoconjugates (InPc–CdSe/ZnS) were investigated with nanosecond laser radiation at 532 nm wavelength. Enhanced NLA properties compared to the InPc alone were observed in the conjugates. The NLA was found to increase with the size of the CdSe/ZnS particles attached to the phthalocyanine. The observed increase was due to the availability of more free-carrier ions in the larger QDs, thus giving rise to the enhanced free-carrier absorption. The measured free-carrier absorption cross-sections (σFCA) are 1.10, 1.65 and 1.95 (×10−19 cm2) for InPc-QD1, InPc-QD2 and InPc-QD3 respectively. The nanoconjugates (InPc–CdSe/ZnS) showed a much lower threshold for optical limiting together with a much lower transmission at high fluences, than the previously reported nanocomposite limiters.
- Full Text:
- Date Issued: 2014
Infection control practices for the prevention of surgical site infections in the operating room
- Authors: Opadotun, Olukemi
- Date: 2014
- Subjects: Surgical wound infections -- Prevention , Wounds and injuries -- Nursing , Operating room nursing , Surgical nursing , Evidence-based nursing
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10050 , http://hdl.handle.net/10948/d1017195
- Description: Infections are a major cause of morbidity and mortality during the post-operative phase of patients’ recovery. Wound infections are the second most commonly encountered type of nosocomial infection. Because wound infections can be introduced by not applying infection control measures and sterile technique principles in the operating room, the implementation of infection control principles is an imperative. The aim of this study was to explore and describe infection control practices related to the prevention of Surgical site infections in the operating rooms in a public health care sector in the Nelson Mandela Bay Municipality. The findings were compared with practices, as indicated in an evidence-based guideline. The research design was quantitative, explorative, descriptive, comparative-descriptive and contextual in nature. The research sample consisted of all the professional nurses, in the operating room. The data were collected by means of a self-administered questionnaire. Descriptive statistics was used to present the data in the form of tables and graphs. Based on the analysis of the data, some recommendations were made for the implementation of infection control practices, in order to prevent Surgical site infections in the operating room.
- Full Text:
- Date Issued: 2014
- Authors: Opadotun, Olukemi
- Date: 2014
- Subjects: Surgical wound infections -- Prevention , Wounds and injuries -- Nursing , Operating room nursing , Surgical nursing , Evidence-based nursing
- Language: English
- Type: Thesis , Masters , MCur
- Identifier: vital:10050 , http://hdl.handle.net/10948/d1017195
- Description: Infections are a major cause of morbidity and mortality during the post-operative phase of patients’ recovery. Wound infections are the second most commonly encountered type of nosocomial infection. Because wound infections can be introduced by not applying infection control measures and sterile technique principles in the operating room, the implementation of infection control principles is an imperative. The aim of this study was to explore and describe infection control practices related to the prevention of Surgical site infections in the operating rooms in a public health care sector in the Nelson Mandela Bay Municipality. The findings were compared with practices, as indicated in an evidence-based guideline. The research design was quantitative, explorative, descriptive, comparative-descriptive and contextual in nature. The research sample consisted of all the professional nurses, in the operating room. The data were collected by means of a self-administered questionnaire. Descriptive statistics was used to present the data in the form of tables and graphs. Based on the analysis of the data, some recommendations were made for the implementation of infection control practices, in order to prevent Surgical site infections in the operating room.
- Full Text:
- Date Issued: 2014
Influence of anthropogenic stressors on the behaviour and mortality of the endangered African penguin
- Authors: Nyengera, Reason
- Date: 2014
- Subjects: African penguin -- South Africa -- Algoa Bay , Birds -- Mortality -- South Africa -- Algoa Bay , Endangered species -- Breeding -- South Africa -- Algoa Bay
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/3064 , vital:20395
- Description: This study investigated the potential impacts of several anthropogenic stressors on the movement and survival of African penguins in Algoa Bay, taking into account prey availability and environmental conditions (sea surface temperature and chlorophyll productivity). The primary drive for the study was based on the seismic exploration, which took place in the habitat of the endangered African penguin. The research was also carried out to understand how pelagic fishing and prey availability influence the broader behavioural and mortality aspects of penguins. To achieve this goal, I used monthly beach surveys to assess seabird mortality, admissions of penguins in rehabilitation centres and the monitoring of breeding penguins’ movement at sea through individual GPS tracking. In addition, prey distribution and abundance were monitored with acoustic surveys to assess potential changes in relation anthropogenic stressors. Breeding African penguins did not react dramatically to seismic activities, except on St Croix Island where they changed their foraging direction during the seismic period. There was no evidence of a siginficant increase in African penguin carcasses encountered or strandings along the beaches during the period of seismic activity. However, a sharp increase in encounter rate was recorded soon after seismic operations, which may potentially indicate a delay between the effect of seismic activities on penguin mortality and the encounter of the related carcasses after the operation. However, the impact of seismic surveys on penguins may be long-term rather than short term, and additional studies would be needed to reveal long-term effects of seismic activities, if any. Foraging effort of breeding African penguins increased substantially in the presence of commercial fishing activities within close proximity to the colonies. To a greater extent, at-sea movement patterns and counts of beach cast carcasses were largely influenced by prey availability. Penguins spent more time at sea, traveled longer and covered a larger foraging area during periods of relatvely low pelagic fish abundance. There was also a sharp increase in African penguin mortality during periods of low prey availability in the Bay. However, environmental conditions showed some influence over these interactions. Foraging effort of breeding African penguins increased substantially in the presence of commercial fishing activities within close proximity to the colonies. To a greater extent, at-sea movement patterns and counts of beach cast carcasses were largely influenced by prey availability. Penguins spent more time at sea, traveled longer and covered a larger foraging area during periods of relatvely low pelagic fish abundance. There was also a sharp increase in African penguin mortality during periods of low prey availability in the Bay. However, environmental conditions showed some influence over these interactions. For example a red tide event during in period of low prey availability, made it difficult to understand impacts of prey on penguins difficult. Both anthropogenic stressors and environmental conditions influenced African penguins’ behaviour and survival. Due to the worrying trend of African penguins in South Africa for the past few years, all conservation management efforts to increase penguin numbers and limit their mortality are necessary. This study highlights the negative impact of industrial fishing on this Endangered species and the rapid increase in mortality of penguins during times of low prey availability. A network of Marine Protected Areas would certainly increase food availability to African penguins by limiting competition with fisheries, and contribute to increasing the population numbers.
- Full Text:
- Date Issued: 2014
- Authors: Nyengera, Reason
- Date: 2014
- Subjects: African penguin -- South Africa -- Algoa Bay , Birds -- Mortality -- South Africa -- Algoa Bay , Endangered species -- Breeding -- South Africa -- Algoa Bay
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/3064 , vital:20395
- Description: This study investigated the potential impacts of several anthropogenic stressors on the movement and survival of African penguins in Algoa Bay, taking into account prey availability and environmental conditions (sea surface temperature and chlorophyll productivity). The primary drive for the study was based on the seismic exploration, which took place in the habitat of the endangered African penguin. The research was also carried out to understand how pelagic fishing and prey availability influence the broader behavioural and mortality aspects of penguins. To achieve this goal, I used monthly beach surveys to assess seabird mortality, admissions of penguins in rehabilitation centres and the monitoring of breeding penguins’ movement at sea through individual GPS tracking. In addition, prey distribution and abundance were monitored with acoustic surveys to assess potential changes in relation anthropogenic stressors. Breeding African penguins did not react dramatically to seismic activities, except on St Croix Island where they changed their foraging direction during the seismic period. There was no evidence of a siginficant increase in African penguin carcasses encountered or strandings along the beaches during the period of seismic activity. However, a sharp increase in encounter rate was recorded soon after seismic operations, which may potentially indicate a delay between the effect of seismic activities on penguin mortality and the encounter of the related carcasses after the operation. However, the impact of seismic surveys on penguins may be long-term rather than short term, and additional studies would be needed to reveal long-term effects of seismic activities, if any. Foraging effort of breeding African penguins increased substantially in the presence of commercial fishing activities within close proximity to the colonies. To a greater extent, at-sea movement patterns and counts of beach cast carcasses were largely influenced by prey availability. Penguins spent more time at sea, traveled longer and covered a larger foraging area during periods of relatvely low pelagic fish abundance. There was also a sharp increase in African penguin mortality during periods of low prey availability in the Bay. However, environmental conditions showed some influence over these interactions. Foraging effort of breeding African penguins increased substantially in the presence of commercial fishing activities within close proximity to the colonies. To a greater extent, at-sea movement patterns and counts of beach cast carcasses were largely influenced by prey availability. Penguins spent more time at sea, traveled longer and covered a larger foraging area during periods of relatvely low pelagic fish abundance. There was also a sharp increase in African penguin mortality during periods of low prey availability in the Bay. However, environmental conditions showed some influence over these interactions. For example a red tide event during in period of low prey availability, made it difficult to understand impacts of prey on penguins difficult. Both anthropogenic stressors and environmental conditions influenced African penguins’ behaviour and survival. Due to the worrying trend of African penguins in South Africa for the past few years, all conservation management efforts to increase penguin numbers and limit their mortality are necessary. This study highlights the negative impact of industrial fishing on this Endangered species and the rapid increase in mortality of penguins during times of low prey availability. A network of Marine Protected Areas would certainly increase food availability to African penguins by limiting competition with fisheries, and contribute to increasing the population numbers.
- Full Text:
- Date Issued: 2014
Influence of local economic development strategic leaders on the formulation of the integrated development plan, Makana Municipality, Eastern Cape
- Authors: Nonxuba, Mnweba McNair
- Date: 2014
- Subjects: Local Economic Development (Programme) , Community development -- South Africa -- Grahamstown , Municipal government -- South Africa -- Grahamstown , Strategic planning -- South Africa -- Grahamstown , Grahamstown (South Africa) -- Economic conditions -- 21st century , South Africa -- Politics and government
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:832 , http://hdl.handle.net/10962/d1013176
- Description: The influence of local economic development strategic leaders on how Integrated Development Plans (IDP) are developed is critical to gain insights into strategic planning directed towards economically developing municipalities. Concisely, the aim of this qualitative study was to gain a multiple understanding of how LED strategic leaders, namely managers of the LED directorate and sub-directorates at Makana local municipality influenced the IDP formulation. The fact that these LED strategic leaders, ‘make consequential or strategic decisions’ suggests that their decisions have an influence on the IDP formulation. Thus, the key research question in this study was: How do LED strategic leaders at Makana local municipality influence the formulation of the IDP at this municipality? This qualitative research used purposive sampling of incidents upheld by LED Strategic leaders. A total of ten in-depth and semi-structured interviews were conducted with four LED strategic leaders regarding incidents of their perceived influence on the formulation of the Integrated Development Plan at Makana. The interviews were in-depth in order to gain a rich understanding of their perspectives of reality. As the number of LED strategic leaders was already very small, all the four leaders at Makana participated in this study. Interview data was transcribed and analyzed using open coding and constant comparison. Member check was conducted to enhance confirmability of the findings of this study. Findings indicate that LED strategic leaders perceived their influence on the formulation of the IDP Makana municipality in four varied ways. Predominantly, LED strategic leaders commonly perceived that they had influence in setting evidence-driven direction, and searching for fitness of activities and issues with LED strategy. Thereafter, the other ways in which these LED strategic leaders perceived how they influenced the IDP formulation involve the facilitation of clarity and local relevance of LED mandates, and finally the integration of multiple economic voices of stakeholders. This demonstrates that LED strategic leaders at Makana emphasize proactively managing strategy process rather than content in terms of identifying key opportunities and major economic drivers in the local milieu. Instead, they perceived their influence as characterized by enhancing compliance with bringing the process of municipal strategy formulation closer to stakeholders. Implications of these findings are highlighted.
- Full Text:
- Date Issued: 2014
- Authors: Nonxuba, Mnweba McNair
- Date: 2014
- Subjects: Local Economic Development (Programme) , Community development -- South Africa -- Grahamstown , Municipal government -- South Africa -- Grahamstown , Strategic planning -- South Africa -- Grahamstown , Grahamstown (South Africa) -- Economic conditions -- 21st century , South Africa -- Politics and government
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:832 , http://hdl.handle.net/10962/d1013176
- Description: The influence of local economic development strategic leaders on how Integrated Development Plans (IDP) are developed is critical to gain insights into strategic planning directed towards economically developing municipalities. Concisely, the aim of this qualitative study was to gain a multiple understanding of how LED strategic leaders, namely managers of the LED directorate and sub-directorates at Makana local municipality influenced the IDP formulation. The fact that these LED strategic leaders, ‘make consequential or strategic decisions’ suggests that their decisions have an influence on the IDP formulation. Thus, the key research question in this study was: How do LED strategic leaders at Makana local municipality influence the formulation of the IDP at this municipality? This qualitative research used purposive sampling of incidents upheld by LED Strategic leaders. A total of ten in-depth and semi-structured interviews were conducted with four LED strategic leaders regarding incidents of their perceived influence on the formulation of the Integrated Development Plan at Makana. The interviews were in-depth in order to gain a rich understanding of their perspectives of reality. As the number of LED strategic leaders was already very small, all the four leaders at Makana participated in this study. Interview data was transcribed and analyzed using open coding and constant comparison. Member check was conducted to enhance confirmability of the findings of this study. Findings indicate that LED strategic leaders perceived their influence on the formulation of the IDP Makana municipality in four varied ways. Predominantly, LED strategic leaders commonly perceived that they had influence in setting evidence-driven direction, and searching for fitness of activities and issues with LED strategy. Thereafter, the other ways in which these LED strategic leaders perceived how they influenced the IDP formulation involve the facilitation of clarity and local relevance of LED mandates, and finally the integration of multiple economic voices of stakeholders. This demonstrates that LED strategic leaders at Makana emphasize proactively managing strategy process rather than content in terms of identifying key opportunities and major economic drivers in the local milieu. Instead, they perceived their influence as characterized by enhancing compliance with bringing the process of municipal strategy formulation closer to stakeholders. Implications of these findings are highlighted.
- Full Text:
- Date Issued: 2014
Influence of non-synonymous sequence mutations on the architecture of HIV-1 clade C protease receptor site : docking and molecular dynamics studies
- Authors: Onywera, David Harris
- Date: 2014
- Subjects: HIV (Viruses) -- Research , HIV infections -- Treatment -- Research , HIV infections -- Chemotherapy , Protease inhibitors -- Research , Viruses -- Effect of drugs on -- Research , Antiretroviral agents
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4116 , http://hdl.handle.net/10962/d1013133
- Description: Despite the current interventions to avert contagions and AIDS-related deaths, sub-Saharan Africa is still the region most severely affected by the HIV/AIDS pandemic, where clade C is the dominant circulating HIV-1 strain. The pol-encoded HIV-1 protease enzyme has been extensively exploited as a drug target. Protease inhibitors have been engineered within the framework of clade B, the commonest in America, Europe and Australia. Recent studies have attested the existence of sequence and catalytic disparities between clades B and C proteases that could upset drug susceptibilities. Emergence of drug-resistant associated mutations and combinatorial explosions due to recombination thwarts the attempt to stabilize the current highly active antiretroviral therapy (HAART) baseline. The project aimed at identifying the structural and molecular mechanisms hired by mutants to affect the efficacies of both FDA approved and Rhodes University (RU)-synthesized inhibitors, in order to define how current and or future drugs ought to be modified or synthesized with the intent of combating drug resistance. The rationale involved the generation of homology models of the HIV-1 sequences from the South African infants failing treatment with two protease inhibitors: lopinavir and ritonavir (as monitored by alterations in surrogate markers: CD4 cell count decline and viral load upsurge). Consistent with previous studies, we established nine polymorphisms: 12S, 15V, 19I, 36I, 41K, 63P, 69K, 89M, and 93L, linked to subtype C wild-type; some of which are associated with protease treatment in clade B. Even though we predicted two occurrence patterns of M46I, I54V and V82A mutations as V82A→I54V→M46I and I54V→V82A→M46V, other possibilities might exist. Mutations either caused a protracted or contracted active site cleft, which enforced differential drug responses. The in silico docking indicated susceptibility discordances between clades B and C in certain polymorphisms and non-polymorphisms. The RU-synthesized ligands displayed varied efficacies that were below those of the FDA approved protease inhibitors. The flaps underwent a wide range of structural motions to accommodate and stabilize the ligands. Computational analyses unravelled the need for these potential drugs to be restructured by (de novo) drug engineers to improve their binding fits, affinities, energies and interactions with multiple key protease residues in order to target resilient HIV-1 assemblages. Accumulating evidences on contrasting drug-choice interpretations from the Stanford HIVdb should act as an impetus for the customization of a HIVdb for the sub-Saharan subcontinent.
- Full Text:
- Date Issued: 2014
- Authors: Onywera, David Harris
- Date: 2014
- Subjects: HIV (Viruses) -- Research , HIV infections -- Treatment -- Research , HIV infections -- Chemotherapy , Protease inhibitors -- Research , Viruses -- Effect of drugs on -- Research , Antiretroviral agents
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4116 , http://hdl.handle.net/10962/d1013133
- Description: Despite the current interventions to avert contagions and AIDS-related deaths, sub-Saharan Africa is still the region most severely affected by the HIV/AIDS pandemic, where clade C is the dominant circulating HIV-1 strain. The pol-encoded HIV-1 protease enzyme has been extensively exploited as a drug target. Protease inhibitors have been engineered within the framework of clade B, the commonest in America, Europe and Australia. Recent studies have attested the existence of sequence and catalytic disparities between clades B and C proteases that could upset drug susceptibilities. Emergence of drug-resistant associated mutations and combinatorial explosions due to recombination thwarts the attempt to stabilize the current highly active antiretroviral therapy (HAART) baseline. The project aimed at identifying the structural and molecular mechanisms hired by mutants to affect the efficacies of both FDA approved and Rhodes University (RU)-synthesized inhibitors, in order to define how current and or future drugs ought to be modified or synthesized with the intent of combating drug resistance. The rationale involved the generation of homology models of the HIV-1 sequences from the South African infants failing treatment with two protease inhibitors: lopinavir and ritonavir (as monitored by alterations in surrogate markers: CD4 cell count decline and viral load upsurge). Consistent with previous studies, we established nine polymorphisms: 12S, 15V, 19I, 36I, 41K, 63P, 69K, 89M, and 93L, linked to subtype C wild-type; some of which are associated with protease treatment in clade B. Even though we predicted two occurrence patterns of M46I, I54V and V82A mutations as V82A→I54V→M46I and I54V→V82A→M46V, other possibilities might exist. Mutations either caused a protracted or contracted active site cleft, which enforced differential drug responses. The in silico docking indicated susceptibility discordances between clades B and C in certain polymorphisms and non-polymorphisms. The RU-synthesized ligands displayed varied efficacies that were below those of the FDA approved protease inhibitors. The flaps underwent a wide range of structural motions to accommodate and stabilize the ligands. Computational analyses unravelled the need for these potential drugs to be restructured by (de novo) drug engineers to improve their binding fits, affinities, energies and interactions with multiple key protease residues in order to target resilient HIV-1 assemblages. Accumulating evidences on contrasting drug-choice interpretations from the Stanford HIVdb should act as an impetus for the customization of a HIVdb for the sub-Saharan subcontinent.
- Full Text:
- Date Issued: 2014
Influences on productivity of construction projects with particular reference to core labour, unskilled labour and leadership style of managers
- Authors: Mathura, Gonasagree Sindy
- Date: 2014
- Subjects: Construction industry -- Labor productivity -- South Africa -- Eastern Cape , Unskilled labor -- South Africa -- Eastern Cape , Construction workers -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/6851 , vital:21154
- Description: Construction productivity is an interesting phenomenon which was an initial study into time and motion. However this remains a vital part of the construction industry today as it takes into consideration cost-savings, a precise timeous delivery of projects and the correct usage of materials. This phenomenon itself is a huge challenge to many companies in South Africa. The construction industry in South Africa is seen as a tool to alleviate the increasing unemployment and poverty levels. The ruling party, the African National Congress (ANC), has made statements to decrease the unemployment rate and due to these promises, the imposition of the use of local unskilled labour from the local communities has become the norm on the majority of construction projects. This formed the basis of the Expanded Public Works Programme. This initiative has indeed shown a huge success but the programme lacks long-term support. The majority of these workers are taken on short-term projects and thereafter the workers are returned to the unemployment pool. The workers are also aware of the short-term projects and therefore there is a lack of motivation which inevitably affects the productivity on any construction site. This study looks at the challenges faced by contractor's in the Eastern Cape and analyses the effects of the use of unskilled labour from the local community. Questionnaires were completed as a measurement instrument to determine the motivation, leadership style and the communication levels among the unskilled, core and the managers on construction projects. The productivity achievements of the unskilled labour and the core labour will be measured and compared and the findings are discussed.
- Full Text:
- Date Issued: 2014
- Authors: Mathura, Gonasagree Sindy
- Date: 2014
- Subjects: Construction industry -- Labor productivity -- South Africa -- Eastern Cape , Unskilled labor -- South Africa -- Eastern Cape , Construction workers -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/6851 , vital:21154
- Description: Construction productivity is an interesting phenomenon which was an initial study into time and motion. However this remains a vital part of the construction industry today as it takes into consideration cost-savings, a precise timeous delivery of projects and the correct usage of materials. This phenomenon itself is a huge challenge to many companies in South Africa. The construction industry in South Africa is seen as a tool to alleviate the increasing unemployment and poverty levels. The ruling party, the African National Congress (ANC), has made statements to decrease the unemployment rate and due to these promises, the imposition of the use of local unskilled labour from the local communities has become the norm on the majority of construction projects. This formed the basis of the Expanded Public Works Programme. This initiative has indeed shown a huge success but the programme lacks long-term support. The majority of these workers are taken on short-term projects and thereafter the workers are returned to the unemployment pool. The workers are also aware of the short-term projects and therefore there is a lack of motivation which inevitably affects the productivity on any construction site. This study looks at the challenges faced by contractor's in the Eastern Cape and analyses the effects of the use of unskilled labour from the local community. Questionnaires were completed as a measurement instrument to determine the motivation, leadership style and the communication levels among the unskilled, core and the managers on construction projects. The productivity achievements of the unskilled labour and the core labour will be measured and compared and the findings are discussed.
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- Date Issued: 2014