An interpretative phenomenological analysis of HIV positive individuals’ experiences of being in a support group
- Authors: Brink, Nicole
- Date: 2018
- Subjects: HIV-positive persons -- Social aspects Self-help groups AIDS (Disease) -- Patients -- Counseling of AIDS (Disease) -- Social aspects
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/62988 , vital:28351
- Description: People who have been diagnosed HIV positive often experience distress and anxiety due to uncertainties pertaining to the implications of an HIV positive status. Research has shown that support groups have always been a way for people to cope with the distress and stressful circumstances associated with health conditions such as HIV. This research investigated the role of face to face support groups in the lives of those living with HIV. The primary focus of this research project is to provide an in-depth exploration of HIV positive individuals‟ experiences of being in a support group. The study aims to explore the positive and negative experiences of being in an HIV support group and aims to gain an understanding of the role support plays in the lives of those living with HIV. A qualitative research design was used to explore the above mentioned aim. Semi-structured interviews were conducted with five individuals, (three women and two men) who had experienced HIV support groups. The interviews were transcribed and then analysed according to the principles of interpretative phenomenological analysis (IPA). The findings of this study revealed five super-ordinate themes, which revealed not only the positive and negative experiences of being in a support group, but also the challenges that the participants‟ experienced before joining the group. Getting a sense of the participants‟ experience before joining the group allowed the researcher to get a better understanding of how useful or not the support group has been in helping them deal with the challenges of living with HIV. The themes included: „struggling to survive after diagnosis‟, „struggling to cope: adopting negative coping skills‟, „experiencing a turning-point: a will to survive‟, „attending support group: a sweet experience‟ and lastly, „attending support groups: a bitter experience‟. Findings suggest that for these participants, the advantages outweighed the disadvantages of being in a support group. Therefore this study suggests that face to face support groups are a viable and even necessary option for support. These findings support previous research and literature in regards to the importance of social support in the form of support groups in effectively assisting HIV positive people in their journey to adjust to the consequence of living with HIV.
- Full Text:
- Date Issued: 2018
- Authors: Brink, Nicole
- Date: 2018
- Subjects: HIV-positive persons -- Social aspects Self-help groups AIDS (Disease) -- Patients -- Counseling of AIDS (Disease) -- Social aspects
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/62988 , vital:28351
- Description: People who have been diagnosed HIV positive often experience distress and anxiety due to uncertainties pertaining to the implications of an HIV positive status. Research has shown that support groups have always been a way for people to cope with the distress and stressful circumstances associated with health conditions such as HIV. This research investigated the role of face to face support groups in the lives of those living with HIV. The primary focus of this research project is to provide an in-depth exploration of HIV positive individuals‟ experiences of being in a support group. The study aims to explore the positive and negative experiences of being in an HIV support group and aims to gain an understanding of the role support plays in the lives of those living with HIV. A qualitative research design was used to explore the above mentioned aim. Semi-structured interviews were conducted with five individuals, (three women and two men) who had experienced HIV support groups. The interviews were transcribed and then analysed according to the principles of interpretative phenomenological analysis (IPA). The findings of this study revealed five super-ordinate themes, which revealed not only the positive and negative experiences of being in a support group, but also the challenges that the participants‟ experienced before joining the group. Getting a sense of the participants‟ experience before joining the group allowed the researcher to get a better understanding of how useful or not the support group has been in helping them deal with the challenges of living with HIV. The themes included: „struggling to survive after diagnosis‟, „struggling to cope: adopting negative coping skills‟, „experiencing a turning-point: a will to survive‟, „attending support group: a sweet experience‟ and lastly, „attending support groups: a bitter experience‟. Findings suggest that for these participants, the advantages outweighed the disadvantages of being in a support group. Therefore this study suggests that face to face support groups are a viable and even necessary option for support. These findings support previous research and literature in regards to the importance of social support in the form of support groups in effectively assisting HIV positive people in their journey to adjust to the consequence of living with HIV.
- Full Text:
- Date Issued: 2018
An intervention for high-risk type 2 diabetic clients during preconception and internatal in re-engineering of primary health care
- Authors: Ngoma, Siphokazi Amanda
- Date: 2018
- Subjects: Diabetes Diabetes Mellitus, Type 2
- Language: English
- Type: Thesis , Masters , (MCur) Nursing
- Identifier: http://hdl.handle.net/10353/10199 , vital:35375
- Description: The South African disease profile has changed significantly and has increasing prevalence of overweight and obesity in relation to body mass index. Type 2 diabetes mellitus is greatly associated with increased body mass index and poses a great health concern for women of childbearing age. Complications of type 2 diabetes mellitus in pregnancy has life-threatening for the mother and baby. South African women have a tendency of avoiding and neglecting routine screening before pregnancy, that is part of preconception care or internatal care. The aim of the study sought to identify women of childbearing age with predisposing factors of type 2 diabetes, in order to intervene, using a lifestyle modification to delay and prevent the occurrence of type 2 diabetes. A quantitative intervention study using parallel group randomized control trials was used. One hundred and forty-six women of childbearing age (18-45 years) were recruited and assigned to either control (n=73 + 9) or experimental group (n=73 +9). using a computer software randomizer application to avoid bias in selection of participants by the researcher. Both groups received health education from the researcher and the dietician from hospital. The control group had no intervention done, whereas the experimental group attended physical activity sessions which were administered by a hired lay coach. The findings showed that both groups are at risk of developing type 2 diabetes although they both groups lose weight. The weight loss of the control group was owed to education during recruitment. Vegetable consumption was minimal to the younger age group than the older age groups. Waist circumference above 105cm consumed less vegetables, a higher waist circumference is associated with insulin resistance. There was also minimal exercises and knowledge about the preconception care. Diabetes prevention is vital for the women of childbearing age as it affects both mother and child. The study recommends lifestyle modification (exercise and healthy diet) to prevent and delay of type 2 diabetes and gestational diabetes mellitus. The study also recommends Preconception care and Re- engineering of Primary health care uses community health care workers for screening high risk women during home visits.
- Full Text:
- Date Issued: 2018
- Authors: Ngoma, Siphokazi Amanda
- Date: 2018
- Subjects: Diabetes Diabetes Mellitus, Type 2
- Language: English
- Type: Thesis , Masters , (MCur) Nursing
- Identifier: http://hdl.handle.net/10353/10199 , vital:35375
- Description: The South African disease profile has changed significantly and has increasing prevalence of overweight and obesity in relation to body mass index. Type 2 diabetes mellitus is greatly associated with increased body mass index and poses a great health concern for women of childbearing age. Complications of type 2 diabetes mellitus in pregnancy has life-threatening for the mother and baby. South African women have a tendency of avoiding and neglecting routine screening before pregnancy, that is part of preconception care or internatal care. The aim of the study sought to identify women of childbearing age with predisposing factors of type 2 diabetes, in order to intervene, using a lifestyle modification to delay and prevent the occurrence of type 2 diabetes. A quantitative intervention study using parallel group randomized control trials was used. One hundred and forty-six women of childbearing age (18-45 years) were recruited and assigned to either control (n=73 + 9) or experimental group (n=73 +9). using a computer software randomizer application to avoid bias in selection of participants by the researcher. Both groups received health education from the researcher and the dietician from hospital. The control group had no intervention done, whereas the experimental group attended physical activity sessions which were administered by a hired lay coach. The findings showed that both groups are at risk of developing type 2 diabetes although they both groups lose weight. The weight loss of the control group was owed to education during recruitment. Vegetable consumption was minimal to the younger age group than the older age groups. Waist circumference above 105cm consumed less vegetables, a higher waist circumference is associated with insulin resistance. There was also minimal exercises and knowledge about the preconception care. Diabetes prevention is vital for the women of childbearing age as it affects both mother and child. The study recommends lifestyle modification (exercise and healthy diet) to prevent and delay of type 2 diabetes and gestational diabetes mellitus. The study also recommends Preconception care and Re- engineering of Primary health care uses community health care workers for screening high risk women during home visits.
- Full Text:
- Date Issued: 2018
An intervention study for low risk pregnant women and high risk pregnant women with GDM in Buffalo City Metropolitan Municipality, Eastern Cape, South Africa
- Authors: Vellem, Nonceba Mercy
- Date: 2018
- Subjects: Diabetes in pregnancy -- South Africa Nursing services -- South Africa -- Eastern Cape -- Administration Pregnancy -- Complications
- Language: English
- Type: Thesis , Doctoral , Nursing
- Identifier: http://hdl.handle.net/10353/9723 , vital:34891
- Description: Low risk and high risk pregnant women (HRPW) with gestational diabetes mellitus (GDM) who practise sedentary life style are at risk of overweight and obesity that predispose to gestational diabetes mellitus (GDM). The purpose of the study is to describe the effectiveness of an intervention strategy of modified diet and planned physical activity implemented amongst low-risk and high-risk pregnant women with GDM in Buffalo City Metropolitan Municipality in the Eastern Cape, South Africa. Quantitative experimental intervention design and stratified random sampling was used for drawing a sample of low-risk and high risk pregnant women with GDM. A sample size 291 of LRPW and n=34 HRPW were eligible for the study. The sample frame of the study was taken from the registers of the CHCs, Frere Hospital and Cecilia Makiwane Hospital (CMH). Questionnaires were used to collect data from the low and high risk pregnant with GDM. Descriptive statistics (frequency, percentages, mean and standard deviation) were used for categorical variables. A p-value of < 0.05 was considered statistically significant. The total analysed of LRPW were n=135 and HRPW n=34 all in control group due to miscarriages, phone loss and relocation. LRPW had some risk factors of overweight (6.2 percent), obesity (15.5 percent), family history of diabetes (16.5 percent). HRPW also had overweight and obesity of (14.7 percent) and family history of (26.4 percent) as the Pvalue was statistically significant of weight was 001, MUAC Pvalue of 000 and Pvalue of BMI 000. There were alarming abnormalities of urinalysis of protein, glucose, leucocytes and blood in urine. The LRPW and HRPW had consumption of high content of carbohydrates, vegetables, fats and low in fruit, vegetables and fibre diet. Both LRPW and HRPW were also interested on the education about modified diet benefits (95.1 percent) and modified diet programs networks (87.5 percent). The barriers showed that LRPW and HRPW were low motivation (90 percent) minimal knowledge and benefits of modified diet (93 percent) and socio-cultural issues (86 percent). The majority of participants both LRPW and HRPW showed the interest in the planned physical activity benefits especially frequent education (96.9 percent) and encouragement of social support networks (90.2 percent) and convenient location (89.4 percent). But the HRPW had lower engagement than the LRPW in planned physical activity and is associated with risk of GDM. Although pregnant women were faced with fatigue and low energy (98.6 percent), as pregnancy progresses, minimum information regarding benefits of planned physical activity (87.6 percent) and the socio-cultural influence (77.8 percent). The recommendations are education on frequent use of modified diet and planned physical activity that is available, less economical and within their context. Frequent screening of all pregnant women during pregnancy of BMI, MUAC and weight and educate accordingly. The availability of dietician and physical activity speciality is needed.
- Full Text:
- Date Issued: 2018
- Authors: Vellem, Nonceba Mercy
- Date: 2018
- Subjects: Diabetes in pregnancy -- South Africa Nursing services -- South Africa -- Eastern Cape -- Administration Pregnancy -- Complications
- Language: English
- Type: Thesis , Doctoral , Nursing
- Identifier: http://hdl.handle.net/10353/9723 , vital:34891
- Description: Low risk and high risk pregnant women (HRPW) with gestational diabetes mellitus (GDM) who practise sedentary life style are at risk of overweight and obesity that predispose to gestational diabetes mellitus (GDM). The purpose of the study is to describe the effectiveness of an intervention strategy of modified diet and planned physical activity implemented amongst low-risk and high-risk pregnant women with GDM in Buffalo City Metropolitan Municipality in the Eastern Cape, South Africa. Quantitative experimental intervention design and stratified random sampling was used for drawing a sample of low-risk and high risk pregnant women with GDM. A sample size 291 of LRPW and n=34 HRPW were eligible for the study. The sample frame of the study was taken from the registers of the CHCs, Frere Hospital and Cecilia Makiwane Hospital (CMH). Questionnaires were used to collect data from the low and high risk pregnant with GDM. Descriptive statistics (frequency, percentages, mean and standard deviation) were used for categorical variables. A p-value of < 0.05 was considered statistically significant. The total analysed of LRPW were n=135 and HRPW n=34 all in control group due to miscarriages, phone loss and relocation. LRPW had some risk factors of overweight (6.2 percent), obesity (15.5 percent), family history of diabetes (16.5 percent). HRPW also had overweight and obesity of (14.7 percent) and family history of (26.4 percent) as the Pvalue was statistically significant of weight was 001, MUAC Pvalue of 000 and Pvalue of BMI 000. There were alarming abnormalities of urinalysis of protein, glucose, leucocytes and blood in urine. The LRPW and HRPW had consumption of high content of carbohydrates, vegetables, fats and low in fruit, vegetables and fibre diet. Both LRPW and HRPW were also interested on the education about modified diet benefits (95.1 percent) and modified diet programs networks (87.5 percent). The barriers showed that LRPW and HRPW were low motivation (90 percent) minimal knowledge and benefits of modified diet (93 percent) and socio-cultural issues (86 percent). The majority of participants both LRPW and HRPW showed the interest in the planned physical activity benefits especially frequent education (96.9 percent) and encouragement of social support networks (90.2 percent) and convenient location (89.4 percent). But the HRPW had lower engagement than the LRPW in planned physical activity and is associated with risk of GDM. Although pregnant women were faced with fatigue and low energy (98.6 percent), as pregnancy progresses, minimum information regarding benefits of planned physical activity (87.6 percent) and the socio-cultural influence (77.8 percent). The recommendations are education on frequent use of modified diet and planned physical activity that is available, less economical and within their context. Frequent screening of all pregnant women during pregnancy of BMI, MUAC and weight and educate accordingly. The availability of dietician and physical activity speciality is needed.
- Full Text:
- Date Issued: 2018
An invastigation into factors that contribute to elder abuse: a case study of mount frère town in the umzimvubu local municipality
- Authors: Rasmeni, Nosabelo Lusanda
- Date: 2018
- Subjects: Older people -- Abuse of , Abused elderly -- Services for
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/19625 , vital:43153
- Description: The aim of this study was to explore factors which contribute to elder abuse in Mount Frere Town, in the Umzimvubu Local Municipality in the Eastern Cape Province. A qualitative approach was used to allow for the achievement of the research aim which was to explore contributory factors towards elderly abuse in Mount Frere Town. A purposive sampling approach was used to select participants in accordance with their experiences and required characteristics. A total sample of fourteen participants was selected. The data was obtained through focus group interviews, using an interview schedule (Appendix B, C, D and E) as an interview guide and the interview sessions were all recorded with an audio recorder. Separate interview schedules were used for the focus groups with the elderly participants (Appendix B – English version and D- IsiXhosa version) and the group consisting of caregivers (Appendix C – English version and E – IsiXhosa version). Thematic analysis was used to analyse and interpret results. Eight main themes were identified, namely: Living Conditions, Daily Activities, Age and Gender, Alcohol Consumption, Family Victimization, Offender Related Factors, Elderly Protection, and Intervention. These themes were identified under chapter four and discussed in the subsequent chapter. Respective sub-themes were identified under each theme and were discussed comprehensively. Key to all these themes was that most perpetrators of elderly abuse were family members, relatives and neighbours of the victim. Also worth noting is the revelation that elderly people, especially those who live in the rural areas are mostly living alone or with little children and are, therefore, without protection. , Thesis (M Soc Sc) (Criminology) -- University of Fort Hare, 2018
- Full Text:
- Date Issued: 2018
- Authors: Rasmeni, Nosabelo Lusanda
- Date: 2018
- Subjects: Older people -- Abuse of , Abused elderly -- Services for
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/19625 , vital:43153
- Description: The aim of this study was to explore factors which contribute to elder abuse in Mount Frere Town, in the Umzimvubu Local Municipality in the Eastern Cape Province. A qualitative approach was used to allow for the achievement of the research aim which was to explore contributory factors towards elderly abuse in Mount Frere Town. A purposive sampling approach was used to select participants in accordance with their experiences and required characteristics. A total sample of fourteen participants was selected. The data was obtained through focus group interviews, using an interview schedule (Appendix B, C, D and E) as an interview guide and the interview sessions were all recorded with an audio recorder. Separate interview schedules were used for the focus groups with the elderly participants (Appendix B – English version and D- IsiXhosa version) and the group consisting of caregivers (Appendix C – English version and E – IsiXhosa version). Thematic analysis was used to analyse and interpret results. Eight main themes were identified, namely: Living Conditions, Daily Activities, Age and Gender, Alcohol Consumption, Family Victimization, Offender Related Factors, Elderly Protection, and Intervention. These themes were identified under chapter four and discussed in the subsequent chapter. Respective sub-themes were identified under each theme and were discussed comprehensively. Key to all these themes was that most perpetrators of elderly abuse were family members, relatives and neighbours of the victim. Also worth noting is the revelation that elderly people, especially those who live in the rural areas are mostly living alone or with little children and are, therefore, without protection. , Thesis (M Soc Sc) (Criminology) -- University of Fort Hare, 2018
- Full Text:
- Date Issued: 2018
An investigation into births before arrival in healthcare facilities in uThungulu Health District during a period of 1 April 2014 to 31 March 2015
- Mkhwanazi, Cynthia Nqobile Nokuthula
- Authors: Mkhwanazi, Cynthia Nqobile Nokuthula
- Date: 2018
- Subjects: Childbirth Childbirth at home
- Language: English
- Type: Thesis , Masters , Public Health
- Identifier: http://hdl.handle.net/10353/11161 , vital:37198
- Description: Births Before Arrival (BBAs) in healthcare facilities is a worldwide health challenge. These births results with diverse obstetric and neonatal complications which could be avoided should delivery took place in an accredited environment. Delivery in health facility rate and Births Before Arrival is one of the vital measures used to monitor access as well as quality of Maternal and Child health services. A birth before arrival in health institutions happens accidentally and unattended by skilled health professionals outside the healthcare facilities (Lazic & Takač, 2011). It is found in both developed and developing countries with various adverse outcomes ranging from haemorrhage to death. Important strides had been taken to improve maternal and child health globally but the healthcare facilities are still experiencing an overwhelming number of births before arrival in healthcare facilities. This is a public health concern. The purpose of the study was to identify factors associated with Births before Arrival in UThungulu Health District facilities and determine the prevalence of BBAs and the neonatal and maternal morbidity and mortality associated with it. A retrospective quantitative research design was used. Maternity clinical records Reviews of 238 Births Before Arrival (BBA) in healthcare facilities that occurred between 1 April 2014 to 31 March 2015 were conducted in the six hospitals in UThungulu Health District. The births before arrival data was analysed using SPSS (Statistical Package for Social Science) version 23, for Windows and used for descriptive and inferential analysis. The reasons for BBA included poor ante natal education of mothers on early signs of labour, lack of transport, poor use of maternity waiting areas and some clinics do not conduct deliveries. The majority of study participants were single (unmarried) and this accentuates the importance of strengthening family planning coverage in this area. Poor reporting of early neonatal deaths and stillbirths was one of the significant observations made during the study. Deceased babies were left at home and buried without being registered at home affairs. Taking cognizance of diverse risks and health needs of expectant women would assist the Health department in planning for adequate coverage for provision of suitable pregnancy care that would improve the health of women and their babies.
- Full Text:
- Date Issued: 2018
- Authors: Mkhwanazi, Cynthia Nqobile Nokuthula
- Date: 2018
- Subjects: Childbirth Childbirth at home
- Language: English
- Type: Thesis , Masters , Public Health
- Identifier: http://hdl.handle.net/10353/11161 , vital:37198
- Description: Births Before Arrival (BBAs) in healthcare facilities is a worldwide health challenge. These births results with diverse obstetric and neonatal complications which could be avoided should delivery took place in an accredited environment. Delivery in health facility rate and Births Before Arrival is one of the vital measures used to monitor access as well as quality of Maternal and Child health services. A birth before arrival in health institutions happens accidentally and unattended by skilled health professionals outside the healthcare facilities (Lazic & Takač, 2011). It is found in both developed and developing countries with various adverse outcomes ranging from haemorrhage to death. Important strides had been taken to improve maternal and child health globally but the healthcare facilities are still experiencing an overwhelming number of births before arrival in healthcare facilities. This is a public health concern. The purpose of the study was to identify factors associated with Births before Arrival in UThungulu Health District facilities and determine the prevalence of BBAs and the neonatal and maternal morbidity and mortality associated with it. A retrospective quantitative research design was used. Maternity clinical records Reviews of 238 Births Before Arrival (BBA) in healthcare facilities that occurred between 1 April 2014 to 31 March 2015 were conducted in the six hospitals in UThungulu Health District. The births before arrival data was analysed using SPSS (Statistical Package for Social Science) version 23, for Windows and used for descriptive and inferential analysis. The reasons for BBA included poor ante natal education of mothers on early signs of labour, lack of transport, poor use of maternity waiting areas and some clinics do not conduct deliveries. The majority of study participants were single (unmarried) and this accentuates the importance of strengthening family planning coverage in this area. Poor reporting of early neonatal deaths and stillbirths was one of the significant observations made during the study. Deceased babies were left at home and buried without being registered at home affairs. Taking cognizance of diverse risks and health needs of expectant women would assist the Health department in planning for adequate coverage for provision of suitable pregnancy care that would improve the health of women and their babies.
- Full Text:
- Date Issued: 2018
An investigation into factors influencing lack of improvement towards achieving compliance with the quality national core standards in KSD clinics, O.R. Tambo District
- Authors: Mnyamana, Tozama Nobom
- Date: 2018
- Subjects: Health facilities--Standards , Health facilities--South Africa , Medical care--South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/19498 , vital:43133
- Description: The purpose of this study was to explore factors associated with lack of improvement in the health care provided towards achieving compliance with the National Core Standards (NCS) in King Sabata Dalindyebo (KSD) sub-district clinics, in OR Tambo District in the Eastern Cape. A quantitative design was seen as the most suitable for this study. This method was chosen as the one that would best assist the researcher to meet the objectives of the study. A purposive sampling method was chosen, according to which the researcher selected five sites; all clinics that had been previously inspected for quality standards by the Office of Health Standards Compliance at least once. Participants for the study were all employees of those clinics and one representative of the governing structure of each. Twenty-eight participants in total formed part of the study as two did not return their responses. For collecting data from the participants, self-administered questionnaires were used. Throughout the data collection process, ethical standards of nursing research regarding anonymity, confidentiality and privacy were adhered to. Collected data were analysed using the Statistical Package for the Social Sciences (SPSS) computer software. The distribution of results is presented in tables and bar graphs. The results of the study reveal that a quality-oriented culture is lacking in our clinics with poor participation of clinics teams in quality improvement processes. Leadership and management at clinic level need strengthening. It was also found that there is insufficient capacitation of departmental strategic shift innovations, revealed in the complete absence of information sharing and feedback regarding previous assessments. In addition, there is a shortage of resources including basic equipment in clinics. , Thesis (MPH) -- University of Fort Hare, 2018
- Full Text:
- Date Issued: 2018
- Authors: Mnyamana, Tozama Nobom
- Date: 2018
- Subjects: Health facilities--Standards , Health facilities--South Africa , Medical care--South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/19498 , vital:43133
- Description: The purpose of this study was to explore factors associated with lack of improvement in the health care provided towards achieving compliance with the National Core Standards (NCS) in King Sabata Dalindyebo (KSD) sub-district clinics, in OR Tambo District in the Eastern Cape. A quantitative design was seen as the most suitable for this study. This method was chosen as the one that would best assist the researcher to meet the objectives of the study. A purposive sampling method was chosen, according to which the researcher selected five sites; all clinics that had been previously inspected for quality standards by the Office of Health Standards Compliance at least once. Participants for the study were all employees of those clinics and one representative of the governing structure of each. Twenty-eight participants in total formed part of the study as two did not return their responses. For collecting data from the participants, self-administered questionnaires were used. Throughout the data collection process, ethical standards of nursing research regarding anonymity, confidentiality and privacy were adhered to. Collected data were analysed using the Statistical Package for the Social Sciences (SPSS) computer software. The distribution of results is presented in tables and bar graphs. The results of the study reveal that a quality-oriented culture is lacking in our clinics with poor participation of clinics teams in quality improvement processes. Leadership and management at clinic level need strengthening. It was also found that there is insufficient capacitation of departmental strategic shift innovations, revealed in the complete absence of information sharing and feedback regarding previous assessments. In addition, there is a shortage of resources including basic equipment in clinics. , Thesis (MPH) -- University of Fort Hare, 2018
- Full Text:
- Date Issued: 2018
An investigation into how a guided learner leadership programme can foster authentic leadership in a boys’ boarding school environment
- Authors: Cuyler, Craig
- Date: 2018
- Subjects: Educational leadership -- South Africa Boarding schools -- South Africa Boys -- South Africa
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/61756 , vital:28055
- Description: This study is located within the field of Educational Leadership and Management and the research was undertaken in a boys’ private boarding school in Grahamstown, South Africa. Learner Leadership within the ELM field of study, has gained much interest in recent times and as the process of democratisation within schools continues to take place, it is important that research efforts be more focused in this area. The lack of learner voice initiatives within South African schools, in spite of policies being in place that encourage it, has created the impression that learner leadership is far more about rhetoric than actual practice. This appears to be the case in private education as well, owing to practices that are reliant on hierarchy and tradition to cement their position within these schools. It was with this in mind that a formative peer mentoring intervention was put in place in a boarding house at St Andrew’s College, a private boys’ school in Grahamstown, South Africa, with the object of developing authentic leadership in a boarding house context. This study was framed by Cultural Historical Activity Theory and sought to investigate how a guided learner leadership programme could foster authentic leadership in a boys’ boarding school context. The intervention consisted of three phases: 1) a pre-intervention questionnaire; 2) a Mentoring Course, during which Grade 12 learners were trained how to be mentors; and 3) a Mentoring Programme, during which Grade 12 learners were each allocated a Grade 8 learner to mentor during the course of the year. Data was collected during all three phases of the intervention and said data was obtained via questionnaires, interviews and from notes kept in an observation journal. The data was analysed inductively and later by using Cultural Historical Activity Theory, which acted as a lens through which data was interpreted. The findings reflected that learners responded well to the Mentoring Course and that they participated as active agents of change. It was during the Mentoring Programme, where contradictions became apparent and where the default to practices associated with hierarchy and tradition became evident. The Mentoring Programme did reflect some positive results, such as learners taking more ownership of the Programme and becoming critical of their own practice as mentors. This led to the further take-up of the Mentoring Programme in other boarding houses at St Andrew’s College after the intervention, and the course continues to grow and improve. My recommendations include that broader research be undertaken generally, to understand the role that tradition and hierarchy play, particularly in private schools, so that more authentic learner leadership can be put in place, and to conduct a longitudinal study to establish the success of the Mentoring Programme at St Andrew’s College specifically, over time.
- Full Text:
- Date Issued: 2018
- Authors: Cuyler, Craig
- Date: 2018
- Subjects: Educational leadership -- South Africa Boarding schools -- South Africa Boys -- South Africa
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/61756 , vital:28055
- Description: This study is located within the field of Educational Leadership and Management and the research was undertaken in a boys’ private boarding school in Grahamstown, South Africa. Learner Leadership within the ELM field of study, has gained much interest in recent times and as the process of democratisation within schools continues to take place, it is important that research efforts be more focused in this area. The lack of learner voice initiatives within South African schools, in spite of policies being in place that encourage it, has created the impression that learner leadership is far more about rhetoric than actual practice. This appears to be the case in private education as well, owing to practices that are reliant on hierarchy and tradition to cement their position within these schools. It was with this in mind that a formative peer mentoring intervention was put in place in a boarding house at St Andrew’s College, a private boys’ school in Grahamstown, South Africa, with the object of developing authentic leadership in a boarding house context. This study was framed by Cultural Historical Activity Theory and sought to investigate how a guided learner leadership programme could foster authentic leadership in a boys’ boarding school context. The intervention consisted of three phases: 1) a pre-intervention questionnaire; 2) a Mentoring Course, during which Grade 12 learners were trained how to be mentors; and 3) a Mentoring Programme, during which Grade 12 learners were each allocated a Grade 8 learner to mentor during the course of the year. Data was collected during all three phases of the intervention and said data was obtained via questionnaires, interviews and from notes kept in an observation journal. The data was analysed inductively and later by using Cultural Historical Activity Theory, which acted as a lens through which data was interpreted. The findings reflected that learners responded well to the Mentoring Course and that they participated as active agents of change. It was during the Mentoring Programme, where contradictions became apparent and where the default to practices associated with hierarchy and tradition became evident. The Mentoring Programme did reflect some positive results, such as learners taking more ownership of the Programme and becoming critical of their own practice as mentors. This led to the further take-up of the Mentoring Programme in other boarding houses at St Andrew’s College after the intervention, and the course continues to grow and improve. My recommendations include that broader research be undertaken generally, to understand the role that tradition and hierarchy play, particularly in private schools, so that more authentic learner leadership can be put in place, and to conduct a longitudinal study to establish the success of the Mentoring Programme at St Andrew’s College specifically, over time.
- Full Text:
- Date Issued: 2018
An investigation into teaching mathematics using a visualisation approach to recontextualise indigenous knowledge
- Authors: Tshithigona, Gaus
- Date: 2018
- Subjects: Ethnoscience Namibia , Mathematics Study and teaching (Elementary) Namibia , Visual learning , Visualization , Interdisciplinary approach to knowledge , Teacher effectiveness Namibia , Traditional ecological knowledge Namibia
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/62461 , vital:28195
- Description: It can be argued that the Namibian curriculum is largely influenced by a Western epistemology. However, many studies suggest that learners make powerful meanings of mathematical concepts they are learning if they visualise these and experience them in relation to what they already know from their own cultural backgrounds. According to the Namibian National Curriculum for Basic Education (NNCBE, 2010), it is not only important for learners to acquire mathematical knowledge and skills, but also to develop and grow their identities, cultures and values as individuals. The aim of this study was to explore and investigate how selected mathematics teachers employ visualisation as a teaching approach to re-contextualise indigenous knowledge (IK). The study set out to explore how conceptual understanding is enhanced by participation in an intervention programme. The use of visualisation is considered an important mediating and pedagogical tool in the mathematics classroom to enhance the mathematics learning of learners. The research is informed by a socio-cultural theory of learning and is located within an interpretive paradigm. The study was conducted at four schools in the Oshana region of Namibia and involved four mathematics teachers who were purposefully selected due to their willingness to use visualisation-IK approaches in their teaching, based on their responses to the survey. The methodologies used are qualitative and quantitative case study. To gather data, document analysis, a survey, lesson observations and focus group interviews were used. The study found that most teachers in the Oshana region have an understanding of the effective use of visualisation-IK approaches. However, the study revealed that visualisation- IK approaches are mostly used in grades 4 to 7 mathematics classrooms. It also discovered that most of the visualisation approaches that teachers employed aligned well with the curriculum and promoted conceptual understanding in the teaching of mathematics. The results of the study showed that teachers have experience of the enabling and constraining factors in using a visualisation-IK approach to teaching mathematics.
- Full Text:
- Date Issued: 2018
- Authors: Tshithigona, Gaus
- Date: 2018
- Subjects: Ethnoscience Namibia , Mathematics Study and teaching (Elementary) Namibia , Visual learning , Visualization , Interdisciplinary approach to knowledge , Teacher effectiveness Namibia , Traditional ecological knowledge Namibia
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/62461 , vital:28195
- Description: It can be argued that the Namibian curriculum is largely influenced by a Western epistemology. However, many studies suggest that learners make powerful meanings of mathematical concepts they are learning if they visualise these and experience them in relation to what they already know from their own cultural backgrounds. According to the Namibian National Curriculum for Basic Education (NNCBE, 2010), it is not only important for learners to acquire mathematical knowledge and skills, but also to develop and grow their identities, cultures and values as individuals. The aim of this study was to explore and investigate how selected mathematics teachers employ visualisation as a teaching approach to re-contextualise indigenous knowledge (IK). The study set out to explore how conceptual understanding is enhanced by participation in an intervention programme. The use of visualisation is considered an important mediating and pedagogical tool in the mathematics classroom to enhance the mathematics learning of learners. The research is informed by a socio-cultural theory of learning and is located within an interpretive paradigm. The study was conducted at four schools in the Oshana region of Namibia and involved four mathematics teachers who were purposefully selected due to their willingness to use visualisation-IK approaches in their teaching, based on their responses to the survey. The methodologies used are qualitative and quantitative case study. To gather data, document analysis, a survey, lesson observations and focus group interviews were used. The study found that most teachers in the Oshana region have an understanding of the effective use of visualisation-IK approaches. However, the study revealed that visualisation- IK approaches are mostly used in grades 4 to 7 mathematics classrooms. It also discovered that most of the visualisation approaches that teachers employed aligned well with the curriculum and promoted conceptual understanding in the teaching of mathematics. The results of the study showed that teachers have experience of the enabling and constraining factors in using a visualisation-IK approach to teaching mathematics.
- Full Text:
- Date Issued: 2018
An investigation into the bacterial biosynthetic origins of bioactive natural products isolated from South African latrunculid sponges
- Authors: Waterworth, Samantha Che
- Date: 2018
- Subjects: Marine biodiversity , Metagenomics , Sponges Biotechnology , Spirochetes , Natural products Biotechnology
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/61826 , vital:28065
- Description: Several pyrroloiminoquinone alkaloids exhibiting cytotoxic, anti-tumour activity have been isolated from sponges within the Latrunculiidae family that are endemic to the South African coastline. Other, structurally similar pyrroloiminoquinone compounds have been isolated from geographically distant and phylogenetically distinct marine sponges, as well as terrestrial myxomycetes which suggested that sponge-associated bacteria may be the true biosynthetic origin of pyrroloiminoquinone compounds. Previous studies have shown that there is conservation of spirochete and betaproteobacterial species in the bacterial communities associated with South African Latrunculiidae sponges and it was proposed that these conserved bacteria represented candidate pyrroloiminoquinone-producers. This study aimed to confirm the conserved dominance of betaproteobacteria and spirochetes within bacterial communities associated with South African latrunculid sponges and employed a shotgun metagenomic approach to assess the functional and biosynthetic potential of associated microbiota in Tsitsikamma favus sponges. Clustering of assembled contigs revealed twenty-three putative bacterial genomes, of which, two were identified as representatives of the conserved betaproteobacteria and spirochete species previously identified in Tsitsikamma sponges. It was shown that the spirochete was most likely an obligate symbiont that benefitted the host sponge through possible defence against pathogenic bacteria and/or nutrient acquisition. The putative genome representing the conserved betaproteobacteria was found to be heavily contaminated and further sequencing is required to accurately resolve the genome for functional characterization. Several biosynthetic gene clusters were identified and demonstrated the bioactive potential of Tsitsikamma favus-associated bacteria. A biosynthetic gene cluster was identified on an unclustered contig that included several genetic features that were indicative of possible pyrroloiminoquinone production.
- Full Text:
- Date Issued: 2018
- Authors: Waterworth, Samantha Che
- Date: 2018
- Subjects: Marine biodiversity , Metagenomics , Sponges Biotechnology , Spirochetes , Natural products Biotechnology
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/61826 , vital:28065
- Description: Several pyrroloiminoquinone alkaloids exhibiting cytotoxic, anti-tumour activity have been isolated from sponges within the Latrunculiidae family that are endemic to the South African coastline. Other, structurally similar pyrroloiminoquinone compounds have been isolated from geographically distant and phylogenetically distinct marine sponges, as well as terrestrial myxomycetes which suggested that sponge-associated bacteria may be the true biosynthetic origin of pyrroloiminoquinone compounds. Previous studies have shown that there is conservation of spirochete and betaproteobacterial species in the bacterial communities associated with South African Latrunculiidae sponges and it was proposed that these conserved bacteria represented candidate pyrroloiminoquinone-producers. This study aimed to confirm the conserved dominance of betaproteobacteria and spirochetes within bacterial communities associated with South African latrunculid sponges and employed a shotgun metagenomic approach to assess the functional and biosynthetic potential of associated microbiota in Tsitsikamma favus sponges. Clustering of assembled contigs revealed twenty-three putative bacterial genomes, of which, two were identified as representatives of the conserved betaproteobacteria and spirochete species previously identified in Tsitsikamma sponges. It was shown that the spirochete was most likely an obligate symbiont that benefitted the host sponge through possible defence against pathogenic bacteria and/or nutrient acquisition. The putative genome representing the conserved betaproteobacteria was found to be heavily contaminated and further sequencing is required to accurately resolve the genome for functional characterization. Several biosynthetic gene clusters were identified and demonstrated the bioactive potential of Tsitsikamma favus-associated bacteria. A biosynthetic gene cluster was identified on an unclustered contig that included several genetic features that were indicative of possible pyrroloiminoquinone production.
- Full Text:
- Date Issued: 2018
An investigation into the bacterial communities associated with pyrroloiminoquinone-producing South African latrunculid sponges
- Authors: Hilliar, Storm Hannah
- Date: 2018
- Subjects: Sponges South Africa Algoa Bay , Betaproteobacteria , Spirochaeta , Symbiosis , Bacterial communities
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/62112 , vital:28128
- Description: Marine sponges belonging to the family Latrunculiidae are known for their production of cytotoxic pyrroloiminoquinone alkaloids and the South African coast provides a unique environment for the exploitation of these potent bioactive compounds. The isolation of structurally similar pyrroloiminoquinone compounds from unrelated, non poriferan sources has led to the suggestion that South African latrunculid pyrroloiminoquinones may be secondary metabolites produced by sponge associated microbial symbionts. Previous studies investigating the bacterial communities of South African latrunculid sponges have shown the conservation of distinct microbial populations with unusual bacterial taxa dominated by a novel betaproteobacterial and spirochete species. This study describes the further investigation into these associated bacterial communities, their conservation and sponge microbiome comparisons across spatial, temporal and environmental scales. The bacterial communities associated with seven latrunculid species representing three genera (Tsitsikamma, Cyclacanthia and Latrunculia) were characterized as well as a Mycale and Tethya rubra species. Latrunculid sponge microbiomes were significantly different from those associated with sympatric outlier sponge species and the surrounding environment. The bacterial communities associated with latrunculid sponges appear host specific with the conservation of two dominant bacterial symbionts which mirror the phylogeny of their host species. , Thesis (MSc) -- Faculty of Science, Biochemistry and Microbiology, 2018
- Full Text:
- Date Issued: 2018
- Authors: Hilliar, Storm Hannah
- Date: 2018
- Subjects: Sponges South Africa Algoa Bay , Betaproteobacteria , Spirochaeta , Symbiosis , Bacterial communities
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/62112 , vital:28128
- Description: Marine sponges belonging to the family Latrunculiidae are known for their production of cytotoxic pyrroloiminoquinone alkaloids and the South African coast provides a unique environment for the exploitation of these potent bioactive compounds. The isolation of structurally similar pyrroloiminoquinone compounds from unrelated, non poriferan sources has led to the suggestion that South African latrunculid pyrroloiminoquinones may be secondary metabolites produced by sponge associated microbial symbionts. Previous studies investigating the bacterial communities of South African latrunculid sponges have shown the conservation of distinct microbial populations with unusual bacterial taxa dominated by a novel betaproteobacterial and spirochete species. This study describes the further investigation into these associated bacterial communities, their conservation and sponge microbiome comparisons across spatial, temporal and environmental scales. The bacterial communities associated with seven latrunculid species representing three genera (Tsitsikamma, Cyclacanthia and Latrunculia) were characterized as well as a Mycale and Tethya rubra species. Latrunculid sponge microbiomes were significantly different from those associated with sympatric outlier sponge species and the surrounding environment. The bacterial communities associated with latrunculid sponges appear host specific with the conservation of two dominant bacterial symbionts which mirror the phylogeny of their host species. , Thesis (MSc) -- Faculty of Science, Biochemistry and Microbiology, 2018
- Full Text:
- Date Issued: 2018
An investigation into the effectiveness of financial management systems in the public service: a case study of the department of health, Eastern Cape Province
- Authors: Galada, Unathi Luthando
- Date: 2018
- Subjects: Financial management -- South Africa -- Eastern Cape , Finance, Public -- South Africa -- Eastern Cape Performance -- Measurement -- Evaluation
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/30227 , vital:30904
- Description: The aim of this study is to investigate the effective and efficient of the financial management systems and its translation into good governance in the Department of Health in order to meet all the compliance requirements as contained in legislations. Financial management is a critical element for good governance. It requires a great deal of attention with parallel internal systems and control that support it for optimal performance. To that, the Public Finance Management Act, 1999 (Act 1 of 1999) and National Treasury Regulations require all government departments to ensure accountability on resource allocated yet able to measure value for money in relation to the delivery of goods and services. The Eastern Cape is one of five provinces with at least 60% of its population living in rural parts serviced by small towns. There is a total of 72 small towns in the province. The province has a legacy of endemic rural poverty and is characterized by the historical neglect of rural areas. The Eastern Cape still has many people moving to other provinces and to the two main cities of East London and Port Elizabeth, in search of employment. (ECSECC, 2006). The compliance to all key financial management legislation and policies has been a constant challenge faced by the Department of Health and the province, which has been largely caused by high levels of corruption, poor financial management systems, poor management tools, poor internal resource controls and maladministration practices (Auditor General Report, 2013/14). As a result, several incidents of dissatisfaction by members of the communities has been on the public domain, calling for government to deliver on quality health services throughout the province. The Public Finance Management Act, Act No. 1 of 1999, with regards to government’s utilisation of financial resources outlines the following objectives: Modernise the system of financial management in the public sector; Enable public sector managers to manage, but at the same time be held more accountable; Ensure the timely provision of quality information; and Eliminate the waste and corruption in the use of public assets. The Auditor General, as the supreme audit institution of the Republic, must, in terms of section 4(1) of the Public Audit Act (Act No. 25 of 2004), audit and report on the accounts, financial statements and financial statement of all government entities. Based on the 2014/15 Consolidated General Report issued by the Auditor General, various government entities were found not to have complied with the legislation relating to the payment of suppliers. The Constitution Republic of South Africa (Act 108 of 1996) makes a provision that all the three government spheres to be developmental-oriented in nature with clear accountability and transparency lines towards service delivery. On the same note , The Public Finance Management Act of 1999 (PFMA) is meant “To regulate financial management in the national government and provincial governments; to ensure that all revenue, expenditure, assets and liabilities of those governments are managed efficiently and effectively; to provide for the responsibilities of persons entrusted with financial management in those governments; and to provide for matters connected therewith”. Based on these legislations, the department of health is not isolated from the responsibility as it forms part of the provincial government, which is the provincial sphere. With the above introductory contentions from different authors and researchers, this study will provide more detail on the policy documents namely; PFMA so to establish the nature and extent to which effective and efficient Financial Management System has improved good governance in the Department of Health, Eastern Cape Province.
- Full Text:
- Date Issued: 2018
- Authors: Galada, Unathi Luthando
- Date: 2018
- Subjects: Financial management -- South Africa -- Eastern Cape , Finance, Public -- South Africa -- Eastern Cape Performance -- Measurement -- Evaluation
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/30227 , vital:30904
- Description: The aim of this study is to investigate the effective and efficient of the financial management systems and its translation into good governance in the Department of Health in order to meet all the compliance requirements as contained in legislations. Financial management is a critical element for good governance. It requires a great deal of attention with parallel internal systems and control that support it for optimal performance. To that, the Public Finance Management Act, 1999 (Act 1 of 1999) and National Treasury Regulations require all government departments to ensure accountability on resource allocated yet able to measure value for money in relation to the delivery of goods and services. The Eastern Cape is one of five provinces with at least 60% of its population living in rural parts serviced by small towns. There is a total of 72 small towns in the province. The province has a legacy of endemic rural poverty and is characterized by the historical neglect of rural areas. The Eastern Cape still has many people moving to other provinces and to the two main cities of East London and Port Elizabeth, in search of employment. (ECSECC, 2006). The compliance to all key financial management legislation and policies has been a constant challenge faced by the Department of Health and the province, which has been largely caused by high levels of corruption, poor financial management systems, poor management tools, poor internal resource controls and maladministration practices (Auditor General Report, 2013/14). As a result, several incidents of dissatisfaction by members of the communities has been on the public domain, calling for government to deliver on quality health services throughout the province. The Public Finance Management Act, Act No. 1 of 1999, with regards to government’s utilisation of financial resources outlines the following objectives: Modernise the system of financial management in the public sector; Enable public sector managers to manage, but at the same time be held more accountable; Ensure the timely provision of quality information; and Eliminate the waste and corruption in the use of public assets. The Auditor General, as the supreme audit institution of the Republic, must, in terms of section 4(1) of the Public Audit Act (Act No. 25 of 2004), audit and report on the accounts, financial statements and financial statement of all government entities. Based on the 2014/15 Consolidated General Report issued by the Auditor General, various government entities were found not to have complied with the legislation relating to the payment of suppliers. The Constitution Republic of South Africa (Act 108 of 1996) makes a provision that all the three government spheres to be developmental-oriented in nature with clear accountability and transparency lines towards service delivery. On the same note , The Public Finance Management Act of 1999 (PFMA) is meant “To regulate financial management in the national government and provincial governments; to ensure that all revenue, expenditure, assets and liabilities of those governments are managed efficiently and effectively; to provide for the responsibilities of persons entrusted with financial management in those governments; and to provide for matters connected therewith”. Based on these legislations, the department of health is not isolated from the responsibility as it forms part of the provincial government, which is the provincial sphere. With the above introductory contentions from different authors and researchers, this study will provide more detail on the policy documents namely; PFMA so to establish the nature and extent to which effective and efficient Financial Management System has improved good governance in the Department of Health, Eastern Cape Province.
- Full Text:
- Date Issued: 2018
An investigation into the introduction of a new wealth tax in South Africa
- Authors: Arendse, Jacqueline A
- Date: 2018
- Subjects: Wealth tax -- Law and legislation -- South Africa , Taxation -- Law and legislation -- South Africa , Income tax -- South Africa , Fiscal policy -- South Africa , South Africa -- Economic conditions , Income distribution -- South Africa
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/61379 , vital:28020
- Description: In a world of economic uncertainty and manifold social problems, South Africa has its own unique challenges of low economic growth, persistent budget deficits that produce increasing government debt and the highest level of economic inequality in the world. The history of injustice and economic marginalisation and the failure of the economy to provide inclusive growth drives an urgent need to address economic inequality through tax policy, placing ever more focus on wealth taxes as a possible solution. There is a hope is that taxing the wealthy may provide the opportunity to redistribute desperately-needed resources to those denied the opportunity to build wealth and who are trapped in the cycle of poverty. Yet, as appealing as a new wealth tax may seem, the introduction of such a tax carries with it a range of risks, not all of which are known. Of great concern is the possible effect on the economy, which, in its vulnerable state, cannot afford any loss of capital and investment. Very little research has been done on wealth tax in the South African context and there is a dearth of literature focusing on the views and perceptions of the wealthy individuals themselves. This qualitative study investigates the merits and disadvantages of a new wealth tax and seeks to identify any unintended consequences that could result from the implementation of a new wealth tax in South Africa, drawing from historical and international experience and primary data obtained from interviews with individuals likely to be affected by such a tax. Having explored the literature and international experiences with wealth tax and having probed the thinking of wealthy individuals who would be the payers of a wealth tax, the study finds that a new wealth tax may contribute towards the progressivity of the tax system, but it is doubtful whether such a tax would provide a sustainable revenue stream that would be sufficient to address economic inequality and there is a risk of causing harm to the economy. Recognising that the motivation for wealth taxes is often driven more by political argument and public perception than by rational quantitative analysis, the study also anticipates the introduction of a new wealth tax and suggests guidelines for the design of such a tax within the framework for evaluating a good tax system. This study informs the debate on wealth taxes in South Africa and contributes to the design of such a tax, should it be implemented.
- Full Text:
- Date Issued: 2018
- Authors: Arendse, Jacqueline A
- Date: 2018
- Subjects: Wealth tax -- Law and legislation -- South Africa , Taxation -- Law and legislation -- South Africa , Income tax -- South Africa , Fiscal policy -- South Africa , South Africa -- Economic conditions , Income distribution -- South Africa
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/61379 , vital:28020
- Description: In a world of economic uncertainty and manifold social problems, South Africa has its own unique challenges of low economic growth, persistent budget deficits that produce increasing government debt and the highest level of economic inequality in the world. The history of injustice and economic marginalisation and the failure of the economy to provide inclusive growth drives an urgent need to address economic inequality through tax policy, placing ever more focus on wealth taxes as a possible solution. There is a hope is that taxing the wealthy may provide the opportunity to redistribute desperately-needed resources to those denied the opportunity to build wealth and who are trapped in the cycle of poverty. Yet, as appealing as a new wealth tax may seem, the introduction of such a tax carries with it a range of risks, not all of which are known. Of great concern is the possible effect on the economy, which, in its vulnerable state, cannot afford any loss of capital and investment. Very little research has been done on wealth tax in the South African context and there is a dearth of literature focusing on the views and perceptions of the wealthy individuals themselves. This qualitative study investigates the merits and disadvantages of a new wealth tax and seeks to identify any unintended consequences that could result from the implementation of a new wealth tax in South Africa, drawing from historical and international experience and primary data obtained from interviews with individuals likely to be affected by such a tax. Having explored the literature and international experiences with wealth tax and having probed the thinking of wealthy individuals who would be the payers of a wealth tax, the study finds that a new wealth tax may contribute towards the progressivity of the tax system, but it is doubtful whether such a tax would provide a sustainable revenue stream that would be sufficient to address economic inequality and there is a risk of causing harm to the economy. Recognising that the motivation for wealth taxes is often driven more by political argument and public perception than by rational quantitative analysis, the study also anticipates the introduction of a new wealth tax and suggests guidelines for the design of such a tax within the framework for evaluating a good tax system. This study informs the debate on wealth taxes in South Africa and contributes to the design of such a tax, should it be implemented.
- Full Text:
- Date Issued: 2018
An investigation into the role of ethics and morality in translation with particular reference to English and isiXhosa
- Authors: Ntantiso, Nobuntu Faith
- Date: 2018
- Subjects: Translating and interpreting -- Research , Language -- Moral and ethical aspects English language -- Moral and ethical aspects Xhosa language -- Moral and ethical aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/33780 , vital:33028
- Description: Translation is one of the oldest professions in the world. It is also a unique profession because most of the time translation professionals work in isolation. They work in their private spaces without any supervision. This means that the decision on how to translate lies solely on the translator, and on his or her individual ethical and moral integrity. As a result, translators have a responsibility to produce translations that are ethically and morally acceptable. This study will consequently investigate the role of ethics and morality in translation with particular reference to English and isiXhosa. This study will discuss how ethics and morality play a role in translation. It will first state the objectives, define the relevant terminology and provide a list of abbreviations that will be used in the study. It will also explain the significance of the study, analyse and state the problem, do a literature review and indicate the methodology that it will use. In addition, it will mention how the chapters have been structured and the topics that will be covered in each chapter.
- Full Text:
- Date Issued: 2018
- Authors: Ntantiso, Nobuntu Faith
- Date: 2018
- Subjects: Translating and interpreting -- Research , Language -- Moral and ethical aspects English language -- Moral and ethical aspects Xhosa language -- Moral and ethical aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/33780 , vital:33028
- Description: Translation is one of the oldest professions in the world. It is also a unique profession because most of the time translation professionals work in isolation. They work in their private spaces without any supervision. This means that the decision on how to translate lies solely on the translator, and on his or her individual ethical and moral integrity. As a result, translators have a responsibility to produce translations that are ethically and morally acceptable. This study will consequently investigate the role of ethics and morality in translation with particular reference to English and isiXhosa. This study will discuss how ethics and morality play a role in translation. It will first state the objectives, define the relevant terminology and provide a list of abbreviations that will be used in the study. It will also explain the significance of the study, analyse and state the problem, do a literature review and indicate the methodology that it will use. In addition, it will mention how the chapters have been structured and the topics that will be covered in each chapter.
- Full Text:
- Date Issued: 2018
An investigation into the translation of Isixhosa kinship lexical items into English
- Authors: Majikija, Sandisiwe
- Date: 2018
- Subjects: Sociolinguistics , Communication -- Language Xhosa (African people) -- Kinship -- Language Lexicology -- Kinship
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/22607 , vital:30024
- Description: This study investigates the problem of non- equivalence in the translation of IsiXhosa kinship lexical items or concepts into English. Venuti (2012:5) says translation can be seen as ‘a set of changing relationships between the relative autonomy of the translated text…and…equivalence and function.’ Equivalence, of which non- equivalence is the antithesis, includes “accuracy,’ adequacy,’ ‘correctness,’ ‘correspondence,’ or ‘identity’. A variable notion, it indicates how translation is connected to the source text. A break in that connection results in non-equivalence. Therein lies the problem. The current study examines these notions, among other things, as they apply to the translation of isiXhosa kinship lexical items into English. As Venuti (2010) points out translation rests on particular assumptions about language use. These assumptions draw on two particular, emerging theories or approaches namely, the ‘instrumental and the hermeneutic’ as will be discussed. Isicatshulwa Olu phando lumalunga nengxaki yokungafani kwentsingiselo yamagama okanye ingqikelelo xa kuguqulelwa esiNgesini amagama okuzalana esiXhoseni. UVenuti (2012:5) uthi inguqulo ingajongwa njengokujika konxulumano oluguqukayo phakathi kokungaxhomekeki kwesiqendwana esiguqulwayo nonxulumano. Unxulumano oluphikisana nokunganxulumani, lubandakanya ‘ukuchaneka,’ ‘ukufanela,’ ‘ukulunga,’ ukungqinelana,’ okanye ‘ukufana twatse.’ Le ngcingane iguquguqukayo ibonisa indlela inguqulo ihambelana ngayo nesiqendwana esiguqulwayo. Xa oko kuhambelana kuthe kwangabikho, loo nto izala ukunganxulumani. Ilapho ke ingxaki. Olu phando luphonononga ezi ngcingane, phakathi kwezinye zezinto, njengoko zisebenza kwinguqulelo esiNgesini kwamagama okuzalana esiXhoseni. Njengoko uVenuti (2010) abonisayo, inguqulo ingqiyame ngeengcinga ezithile ezimbini malunga nokusetyenziswa kolwimi. Ezi ngcinga ziphenjelelwa ziinkcazo eziziingcingane ezithile zamva nje. Zibizwa ‘i-instrumental,’ ‘ne- hermeneutic,’ njengoko uphando olu luza kuxoxa ngazo.
- Full Text:
- Date Issued: 2018
- Authors: Majikija, Sandisiwe
- Date: 2018
- Subjects: Sociolinguistics , Communication -- Language Xhosa (African people) -- Kinship -- Language Lexicology -- Kinship
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/22607 , vital:30024
- Description: This study investigates the problem of non- equivalence in the translation of IsiXhosa kinship lexical items or concepts into English. Venuti (2012:5) says translation can be seen as ‘a set of changing relationships between the relative autonomy of the translated text…and…equivalence and function.’ Equivalence, of which non- equivalence is the antithesis, includes “accuracy,’ adequacy,’ ‘correctness,’ ‘correspondence,’ or ‘identity’. A variable notion, it indicates how translation is connected to the source text. A break in that connection results in non-equivalence. Therein lies the problem. The current study examines these notions, among other things, as they apply to the translation of isiXhosa kinship lexical items into English. As Venuti (2010) points out translation rests on particular assumptions about language use. These assumptions draw on two particular, emerging theories or approaches namely, the ‘instrumental and the hermeneutic’ as will be discussed. Isicatshulwa Olu phando lumalunga nengxaki yokungafani kwentsingiselo yamagama okanye ingqikelelo xa kuguqulelwa esiNgesini amagama okuzalana esiXhoseni. UVenuti (2012:5) uthi inguqulo ingajongwa njengokujika konxulumano oluguqukayo phakathi kokungaxhomekeki kwesiqendwana esiguqulwayo nonxulumano. Unxulumano oluphikisana nokunganxulumani, lubandakanya ‘ukuchaneka,’ ‘ukufanela,’ ‘ukulunga,’ ukungqinelana,’ okanye ‘ukufana twatse.’ Le ngcingane iguquguqukayo ibonisa indlela inguqulo ihambelana ngayo nesiqendwana esiguqulwayo. Xa oko kuhambelana kuthe kwangabikho, loo nto izala ukunganxulumani. Ilapho ke ingxaki. Olu phando luphonononga ezi ngcingane, phakathi kwezinye zezinto, njengoko zisebenza kwinguqulelo esiNgesini kwamagama okuzalana esiXhoseni. Njengoko uVenuti (2010) abonisayo, inguqulo ingqiyame ngeengcinga ezithile ezimbini malunga nokusetyenziswa kolwimi. Ezi ngcinga ziphenjelelwa ziinkcazo eziziingcingane ezithile zamva nje. Zibizwa ‘i-instrumental,’ ‘ne- hermeneutic,’ njengoko uphando olu luza kuxoxa ngazo.
- Full Text:
- Date Issued: 2018
An investigation of mitochondrial dynamics and networks observed within human undifferentiated and differentiated cell lines
- Authors: Houseman, Pascalené Shannon
- Date: 2018
- Subjects: Mitochondria , Mitochondrial pathology , Degeneration (Pathology) , Mesenchymal stem cells , Neural stem cells , Cell lines , Reactive oxygen species (ROS)
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/60687 , vital:27816
- Description: Mitochondrial dynamics refers to a series of constant division and fusion cycles that form interconnecting networks within healthy cells. Reactive oxygen species (ROS) are the byproducts of cellular redox reactions, and, when in excess, have been linked to degenerative diseases and aging. Mesenchymal stem cells (MSCs) require a niche that presents with low levels of ROS; this enables the stem cell to maintain its “sternness”, the stem cell population, as well as the ability to adhere, migrate, and proliferate. If ROS levels increase within the MSC niche, inhibition of cellular adhesion and migration occurs. In contrast, neural stem cells require a niche that presents with a high level of ROS, aiding in their proliferative, self- renewing capacities. Investigations into what constitutes a healthy mitochondrial network versus the disease state of the network are required in order to determine what promotes degeneration and aging within stem cells. It was hypothesized that increased levels of ROS would stunt the ability of MSCs to attach and migrate, and hinder their abilities of proliferation and differentiation. In contrast, neuronal differentiation would present with an increased proliferation. This led to the investigation into the effects of ROS and oxidative stress, and the resulting mitochondrial dynamics, have on undifferentiated and differentiated mesenchymal stem and SH-SY5Y cells. Upon the addition of non-lethal S3I-201 (STAT3 has been linked to a reduction in ROS) to MSCs, an increase in ROS was observed. Higher concentrations of STAT3 inhibitor resulted in a decrease in MSC attachment and proliferation. When exposed to similar conditions, the SH-SY5Y cells underwent an increased proliferation; due to multiple restrictions, they were not used any further within the study. Mitochondrial dynamics were observed using a fusion promoter (M1) and a fission inhibitor (Mdivi-1); the MSCs were dosed with varying concentrations in order to determine the effects that mitochondrial dysfunction may have on the established networks, and cell survival. The mitochondria within MSCs migrated to the extensions of the cell, and displayed an alteration in morphology, or were clustered around the nucleus and/or the lipid deposits. These high density clusters correlated with a high intensity of fluorescence using 2’,7’- dichlorofluorescein diacetate. In conclusion, varying concentrations of ROS have different effects on MSCs in terms of overall maintenance and function; mitochondrial dynamics play an important role in cell survivability and the fate of stem cell differentiation. Further investigation into the mitochondrial dynamics and networks of these cell lines and their differentiated progeny is required.
- Full Text:
- Date Issued: 2018
- Authors: Houseman, Pascalené Shannon
- Date: 2018
- Subjects: Mitochondria , Mitochondrial pathology , Degeneration (Pathology) , Mesenchymal stem cells , Neural stem cells , Cell lines , Reactive oxygen species (ROS)
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/60687 , vital:27816
- Description: Mitochondrial dynamics refers to a series of constant division and fusion cycles that form interconnecting networks within healthy cells. Reactive oxygen species (ROS) are the byproducts of cellular redox reactions, and, when in excess, have been linked to degenerative diseases and aging. Mesenchymal stem cells (MSCs) require a niche that presents with low levels of ROS; this enables the stem cell to maintain its “sternness”, the stem cell population, as well as the ability to adhere, migrate, and proliferate. If ROS levels increase within the MSC niche, inhibition of cellular adhesion and migration occurs. In contrast, neural stem cells require a niche that presents with a high level of ROS, aiding in their proliferative, self- renewing capacities. Investigations into what constitutes a healthy mitochondrial network versus the disease state of the network are required in order to determine what promotes degeneration and aging within stem cells. It was hypothesized that increased levels of ROS would stunt the ability of MSCs to attach and migrate, and hinder their abilities of proliferation and differentiation. In contrast, neuronal differentiation would present with an increased proliferation. This led to the investigation into the effects of ROS and oxidative stress, and the resulting mitochondrial dynamics, have on undifferentiated and differentiated mesenchymal stem and SH-SY5Y cells. Upon the addition of non-lethal S3I-201 (STAT3 has been linked to a reduction in ROS) to MSCs, an increase in ROS was observed. Higher concentrations of STAT3 inhibitor resulted in a decrease in MSC attachment and proliferation. When exposed to similar conditions, the SH-SY5Y cells underwent an increased proliferation; due to multiple restrictions, they were not used any further within the study. Mitochondrial dynamics were observed using a fusion promoter (M1) and a fission inhibitor (Mdivi-1); the MSCs were dosed with varying concentrations in order to determine the effects that mitochondrial dysfunction may have on the established networks, and cell survival. The mitochondria within MSCs migrated to the extensions of the cell, and displayed an alteration in morphology, or were clustered around the nucleus and/or the lipid deposits. These high density clusters correlated with a high intensity of fluorescence using 2’,7’- dichlorofluorescein diacetate. In conclusion, varying concentrations of ROS have different effects on MSCs in terms of overall maintenance and function; mitochondrial dynamics play an important role in cell survivability and the fate of stem cell differentiation. Further investigation into the mitochondrial dynamics and networks of these cell lines and their differentiated progeny is required.
- Full Text:
- Date Issued: 2018
An investigation of teachers’ experiences of a Geoboard intervention programme in area and perimeter in selected Grade 9 classes: a case study
- Authors: Mkhwane, Fezeka Felicia
- Date: 2018
- Subjects: Mathematics -- Study and teaching (Secondary) -- South Africa , Teachers -- Training of -- South Africa , Manipulatives (Education) , Effective teaching , Area measurement , Perimeters (Geometry) , Problem solving -- Study and teaching , Geoboard Intervention Programme , RUMEP
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/61646 , vital:28045
- Description: The study was undertaken with three Grade 9 teachers at three selected schools which are part of RUMEP’s Collegial Cluster Schools’ programme that I coordinate. Collegial clusters are communities of teachers who aim at improving their practice by working on their own professional development. The purpose of this study was to investigate the selected Grade 9 teachers’ experiences of a Geoboard intervention programme. It also wanted to investigate the role that a Geoboard can play in the teaching and learning of area and perimeter of two-dimensional shapes. The research was a case-study within the interpretive paradigm. A variety of data collection techniques was used. These included baseline assessment tasks, observations during the intervention programme, post intervention assessment tasks and semistructured interviews with the participating teachers and a few learners from each participating school. The collected data was analysed using both the quantitative and qualitative methods. My research findings reveal that a Geoboard, as a manipulative, developed confidence in the participating teachers. In the interviews with teachers, it transpired that teachers’ skills in teaching area and perimeter of two-dimensional shapes had been sharpened. According to the interviews with learners, the use of a Geoboard led to better conceptual understanding of the area and perimeter, as learners no longer had to rely on formulae. Kilpatrick et al. (2001) refer to conceptual understanding as an integrated functional grasp of mathematical ideas. The post intervention assessment task showed a positive shift in learners’ performance. The average learner performance improved from 29% in the baseline assessment task to 61% in the post intervention assessment task. This shows that the use of a Geoboard led to meaningful learning of area and perimeter of two-dimensional shapes. The overall research findings reveal that the use of manipulatives has a positive impact in the teaching and learning of area and perimeter. Learners’ responses to the interview questions showed that there was better understanding of the two concepts, which enabled them to construct their own knowledge. They further said the Geoboard allowed them to be hands-on, which contributed to their active involvement in the lesson.
- Full Text:
- Date Issued: 2018
- Authors: Mkhwane, Fezeka Felicia
- Date: 2018
- Subjects: Mathematics -- Study and teaching (Secondary) -- South Africa , Teachers -- Training of -- South Africa , Manipulatives (Education) , Effective teaching , Area measurement , Perimeters (Geometry) , Problem solving -- Study and teaching , Geoboard Intervention Programme , RUMEP
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/61646 , vital:28045
- Description: The study was undertaken with three Grade 9 teachers at three selected schools which are part of RUMEP’s Collegial Cluster Schools’ programme that I coordinate. Collegial clusters are communities of teachers who aim at improving their practice by working on their own professional development. The purpose of this study was to investigate the selected Grade 9 teachers’ experiences of a Geoboard intervention programme. It also wanted to investigate the role that a Geoboard can play in the teaching and learning of area and perimeter of two-dimensional shapes. The research was a case-study within the interpretive paradigm. A variety of data collection techniques was used. These included baseline assessment tasks, observations during the intervention programme, post intervention assessment tasks and semistructured interviews with the participating teachers and a few learners from each participating school. The collected data was analysed using both the quantitative and qualitative methods. My research findings reveal that a Geoboard, as a manipulative, developed confidence in the participating teachers. In the interviews with teachers, it transpired that teachers’ skills in teaching area and perimeter of two-dimensional shapes had been sharpened. According to the interviews with learners, the use of a Geoboard led to better conceptual understanding of the area and perimeter, as learners no longer had to rely on formulae. Kilpatrick et al. (2001) refer to conceptual understanding as an integrated functional grasp of mathematical ideas. The post intervention assessment task showed a positive shift in learners’ performance. The average learner performance improved from 29% in the baseline assessment task to 61% in the post intervention assessment task. This shows that the use of a Geoboard led to meaningful learning of area and perimeter of two-dimensional shapes. The overall research findings reveal that the use of manipulatives has a positive impact in the teaching and learning of area and perimeter. Learners’ responses to the interview questions showed that there was better understanding of the two concepts, which enabled them to construct their own knowledge. They further said the Geoboard allowed them to be hands-on, which contributed to their active involvement in the lesson.
- Full Text:
- Date Issued: 2018
An investigation of the challenges associated with conducting home visits in rural areas, from the lenses of social workers: the case of Raymond Mhlaba Municipality - Eastern Cape, South Africa
- Nguza, Zizipho Zintle https://orcid.org/0000-0001-6559-3183
- Authors: Nguza, Zizipho Zintle https://orcid.org/0000-0001-6559-3183
- Date: 2018
- Subjects: Home-based family services http://id.loc.gov/authorities/subjects/sh89005719 , Social workers http://id.loc.gov/authorities/subjects/sh85124114 , Sociology, Rural http://id.loc.gov/authorities/subjects/sh85124229
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/19523 , vital:43135
- Description: This study strove to understand the challenges encountered by social workers in conducting home visits in rural areas of the Eastern Cape in Raymond Mhlaba Municipality. The intention was to achieve the following objectives; (i) establish the kind of problems that social workers attend to when conducting home visits in rural areas, (ii) investigate the challenges that social workers encounter in the provision of home visits in rural areas, (iii) establish the support services offered to the social workers by their organisations; from the lenses of both social workers and supervisors. The study employed the qualitative approach and was guided by a qualitative research design in the form of a case study. It also employed in-depth one-on-one interviews complemented by both focus group discussions and social work participants as methods of data collection. The study used non-probability sampling technique, specifically the purposive sampling of twenty five (25) social work stakeholders. The sample comprised twenty (20) social workers, both female and male participants and five (5) supervisors. Data was analysed qualitatively through content thematic data analysis which used interpretative approaches and textual presentation. The study revealed the following findings: that social workers in Raymond Mhlaba municipality dealt with an immense range of social problems such as poverty, unemployment, crime, HIV and AIDS, orphanhood, child headed households, marital discord, violence against women and children, abuse of families and persons with disability and mismanagement of social grants. The study recommends employee assistance programmes so that independent counselling and supportive services could be provided for social workers working in rural areas. Regular in-service training programmes can play a vital role in helping staff handle pressure and avoid occupational stress. , Thesis (M Soc Sc) (Social Work) -- University of Fort Hare, 2018
- Full Text:
- Date Issued: 2018
- Authors: Nguza, Zizipho Zintle https://orcid.org/0000-0001-6559-3183
- Date: 2018
- Subjects: Home-based family services http://id.loc.gov/authorities/subjects/sh89005719 , Social workers http://id.loc.gov/authorities/subjects/sh85124114 , Sociology, Rural http://id.loc.gov/authorities/subjects/sh85124229
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10353/19523 , vital:43135
- Description: This study strove to understand the challenges encountered by social workers in conducting home visits in rural areas of the Eastern Cape in Raymond Mhlaba Municipality. The intention was to achieve the following objectives; (i) establish the kind of problems that social workers attend to when conducting home visits in rural areas, (ii) investigate the challenges that social workers encounter in the provision of home visits in rural areas, (iii) establish the support services offered to the social workers by their organisations; from the lenses of both social workers and supervisors. The study employed the qualitative approach and was guided by a qualitative research design in the form of a case study. It also employed in-depth one-on-one interviews complemented by both focus group discussions and social work participants as methods of data collection. The study used non-probability sampling technique, specifically the purposive sampling of twenty five (25) social work stakeholders. The sample comprised twenty (20) social workers, both female and male participants and five (5) supervisors. Data was analysed qualitatively through content thematic data analysis which used interpretative approaches and textual presentation. The study revealed the following findings: that social workers in Raymond Mhlaba municipality dealt with an immense range of social problems such as poverty, unemployment, crime, HIV and AIDS, orphanhood, child headed households, marital discord, violence against women and children, abuse of families and persons with disability and mismanagement of social grants. The study recommends employee assistance programmes so that independent counselling and supportive services could be provided for social workers working in rural areas. Regular in-service training programmes can play a vital role in helping staff handle pressure and avoid occupational stress. , Thesis (M Soc Sc) (Social Work) -- University of Fort Hare, 2018
- Full Text:
- Date Issued: 2018
An investigation of the combustion kinetics of coal-microalgae composite
- Ejesieme, Obialo Vitus, Dugmore, Gary
- Authors: Ejesieme, Obialo Vitus , Dugmore, Gary
- Date: 2018
- Subjects: Microalgae -- Biotechnology , Biomass energy -- South Africa Coal -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/34777 , vital:33447
- Description: Coal mining and handling generate sizeable quantities of ultra-fine coal particles which are heaped as discard material. Use of the ultra-fine coal for co-firing with microalgae biomass appears to be a promising option that would improve combustion of the discard. There is no available traditional biomass binder that can be used to agglomerate, reclaim, and co-fire the discard ultra-fine coal to generate heat. In a recent research, microalgae biomass was identified as an effective natural binder for discard ultra-fine coal. Biomass is a renewable resource, and many have been co-fired on a large scale except microalgae biomass. Researchers have studied co-firing of dry mixed coal-microalgae, however, the kinetics of a wet mix of microalgae biomass and ultra-fine coal, “Coalgae®” patented recently by the Nelson Mandela University needs to be explored. The study aimed at investigating in some detail the oxidation mechanism of coal-microalgae composites. The objective is to understand the impact of microalgae on the kinetic properties of coal which will inform on the application of “Coalgae®”. It involves correlating the small and large-scale combustion properties that will establish the co-firing option on an industrial scenario. The goal is to utilize all grades of discard ultra-fine resource using microalgae biomass as binder and a renewable component which enhances the combustion of coal to supply heat and electricity. The use of microalgae for fuel preparation and upgrading is on the increase due to its high growth potential, reactivity, and ability to store energy more than other biomasses. This research hypothesized that blending of discard ultra-fine coal with live microalgae biomass would improve the kinetic properties of the coal more than expected from linear combination of the dry materials. Thermogravimetric combustion of “Coalgae®” was studied under non-isothermal conditions from 40 °C to 900°C at a heating rate of 15 °C/min and air flow rate of 20 ml/min. The thermogravimetric combustion properties i.e. small-scale was related to the large-scale, John Thompson’s fixed-bed reactor under the above condition. Thermal profiles were transformed into a differential function to reveal overlapped combustion events. The Coat-Redferns kinetic model was applied on the non-de-Ejesieme, O.V. PhD Chemistry (Research), Nelson Mandela Univ. Email: ejevit@yahoo.com , s211266744@live.nmmu.ac.za convoluted reactions set to obtain some of kinetic parameters. The Fraser-Suzuki equation was used to de-convolute the overlapped combustion. Then, rate law combined with Arrhenius equation was used to derive the activation energy E a and pre-exponential factor A, while the integral form of solid states reaction model, g (∝) was applied to deduce the oxidation mechanism. The composite formed a strong and partly renewable blend under controlled temperature conditions, unlike assorted dried biomass mixed with coal. Microalgae biomass upgraded the fuel and kinetics properties of ultra-fine coal more than what was expected from a linear combination. It released heat that promoted the oxidation mechanism of the discard coal. The main effect is that the “Coalgae®” is significantly (p = 0.0570) more reactive than the coal. The co-firing approach is partly renewable and contributes to the utilization of high and low-quality available discard ultra-fine coal. It advances the combustion of coal resources and reduces carbon dioxide, CO2 emission attributed to global warming as well as preserves the natural biomass sources. The combustion of “Coalgae® “will improve economy, environment, and health, heat, and electricity supply to the society.
- Full Text:
- Date Issued: 2018
- Authors: Ejesieme, Obialo Vitus , Dugmore, Gary
- Date: 2018
- Subjects: Microalgae -- Biotechnology , Biomass energy -- South Africa Coal -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/34777 , vital:33447
- Description: Coal mining and handling generate sizeable quantities of ultra-fine coal particles which are heaped as discard material. Use of the ultra-fine coal for co-firing with microalgae biomass appears to be a promising option that would improve combustion of the discard. There is no available traditional biomass binder that can be used to agglomerate, reclaim, and co-fire the discard ultra-fine coal to generate heat. In a recent research, microalgae biomass was identified as an effective natural binder for discard ultra-fine coal. Biomass is a renewable resource, and many have been co-fired on a large scale except microalgae biomass. Researchers have studied co-firing of dry mixed coal-microalgae, however, the kinetics of a wet mix of microalgae biomass and ultra-fine coal, “Coalgae®” patented recently by the Nelson Mandela University needs to be explored. The study aimed at investigating in some detail the oxidation mechanism of coal-microalgae composites. The objective is to understand the impact of microalgae on the kinetic properties of coal which will inform on the application of “Coalgae®”. It involves correlating the small and large-scale combustion properties that will establish the co-firing option on an industrial scenario. The goal is to utilize all grades of discard ultra-fine resource using microalgae biomass as binder and a renewable component which enhances the combustion of coal to supply heat and electricity. The use of microalgae for fuel preparation and upgrading is on the increase due to its high growth potential, reactivity, and ability to store energy more than other biomasses. This research hypothesized that blending of discard ultra-fine coal with live microalgae biomass would improve the kinetic properties of the coal more than expected from linear combination of the dry materials. Thermogravimetric combustion of “Coalgae®” was studied under non-isothermal conditions from 40 °C to 900°C at a heating rate of 15 °C/min and air flow rate of 20 ml/min. The thermogravimetric combustion properties i.e. small-scale was related to the large-scale, John Thompson’s fixed-bed reactor under the above condition. Thermal profiles were transformed into a differential function to reveal overlapped combustion events. The Coat-Redferns kinetic model was applied on the non-de-Ejesieme, O.V. PhD Chemistry (Research), Nelson Mandela Univ. Email: ejevit@yahoo.com , s211266744@live.nmmu.ac.za convoluted reactions set to obtain some of kinetic parameters. The Fraser-Suzuki equation was used to de-convolute the overlapped combustion. Then, rate law combined with Arrhenius equation was used to derive the activation energy E a and pre-exponential factor A, while the integral form of solid states reaction model, g (∝) was applied to deduce the oxidation mechanism. The composite formed a strong and partly renewable blend under controlled temperature conditions, unlike assorted dried biomass mixed with coal. Microalgae biomass upgraded the fuel and kinetics properties of ultra-fine coal more than what was expected from a linear combination. It released heat that promoted the oxidation mechanism of the discard coal. The main effect is that the “Coalgae®” is significantly (p = 0.0570) more reactive than the coal. The co-firing approach is partly renewable and contributes to the utilization of high and low-quality available discard ultra-fine coal. It advances the combustion of coal resources and reduces carbon dioxide, CO2 emission attributed to global warming as well as preserves the natural biomass sources. The combustion of “Coalgae® “will improve economy, environment, and health, heat, and electricity supply to the society.
- Full Text:
- Date Issued: 2018
An investigation of the correlation of mitochondrial biogenesis, mitochondrial DNA methylation, mitochondrial network topology and adipogenesis in the human adipose-derived mesenchymal stromal stem cell model
- Authors: Kadye, Rose
- Date: 2018
- Subjects: Uncatalogued
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/62637 , vital:28222
- Description: Expected release date-April 2019
- Full Text:
- Date Issued: 2018
- Authors: Kadye, Rose
- Date: 2018
- Subjects: Uncatalogued
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/62637 , vital:28222
- Description: Expected release date-April 2019
- Full Text:
- Date Issued: 2018
An investigation of the informal market value chain for prickly pear (Opuntia ficus-indica) in Nelson Mandela Bay, Eastern Cape
- Authors: Ntsonge, Sinazo
- Date: 2018
- Subjects: Opuntia ficus-indica -- South Africa -- Nelson Mandela Bay Municipality , Alien plants -- Economic aspects -- South Africa -- Nelson Mandela Bay Municipality , Women heads of households -- South Africa -- Nelson Mandela Bay Municipality , Poor -- South Africa -- Nelson Mandela Bay Municipality , Informal sector (Economics) -- South Africa -- Nelson Mandela Bay Municipality , Sustainable Livelihoods Framework
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/62894 , vital:28308
- Description: The use of alien plant species as part of the livelihood resources of poor people raises conflicts with national legislation, which views these plants as threats to native plant biodiversity. However, there is also increasing body of literature on the contribution that some of these plants make to the livelihoods of poor people. The level of significance of some alien plant species to livelihoods is mostly highlighted in the case of female market participants who are in a position of household headship. Since most African cultures dictate the role of females as solely being that of homemaker while males are assigned the role household headship and breadwinner, women often find themselves having to shoulder the household responsibilities when the household head is no longer there. This was the case in the Nelson Mandela Bay informal prickly pear market that this study sought to investigate. Even though there were also male participants in the prickly pear market, the majority of participants in the market were female who also mentioned they were the sole breadwinner for their households. This study investigated the economic contribution that the prickly pear (Opuntia ficus-indica) informal market makes to the livelihoods of people living in the Nelson Mandela Bay. The significance of the market’s contribution to their livelihoods was examined through using the Sustainable Livelihoods Framework. The study revealed that although the prickly pear income was largely supplementary due to it being available for only three months of the year, the income was a safety net resource for the market participants who had limited access to other sources of income. The results also highlighted the reasons people were engaging in the informal prickly pear market. The main reason that was mentioned was unemployment. Through a livelihoods analysis using the Sustainable Livelihoods Framework, it was revealed that the other factors that were contributing to their unemployment were low levels of education, low levels of marketable skills, and old age. The study revealed through calculations of the estimated economic value of each market activity the potential of the prickly pear to be used as a poverty fighting tool. Although the results of this study only highlight the economic value of the prickly pear to people in a small area compared to the rest of the province and the country, the informal market’s significance still presents a strong case for the establishment of an agroprocessing industry, which would support the production of value-added products. Since the largest populations of the prickly pear in Uitenhage are currently under effective control by the cochineal species, promotion of its economic value instead of eradicating it without considering its value to the livelihoods of the people in the market could also ensure that its populations are kept under control. Job creation in the agroprocessing industry would not only improve the livelihoods of those involved in the market, but would also feed into the national economy instead of taking from it via the costs incurred during clearing.
- Full Text:
- Date Issued: 2018
- Authors: Ntsonge, Sinazo
- Date: 2018
- Subjects: Opuntia ficus-indica -- South Africa -- Nelson Mandela Bay Municipality , Alien plants -- Economic aspects -- South Africa -- Nelson Mandela Bay Municipality , Women heads of households -- South Africa -- Nelson Mandela Bay Municipality , Poor -- South Africa -- Nelson Mandela Bay Municipality , Informal sector (Economics) -- South Africa -- Nelson Mandela Bay Municipality , Sustainable Livelihoods Framework
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/62894 , vital:28308
- Description: The use of alien plant species as part of the livelihood resources of poor people raises conflicts with national legislation, which views these plants as threats to native plant biodiversity. However, there is also increasing body of literature on the contribution that some of these plants make to the livelihoods of poor people. The level of significance of some alien plant species to livelihoods is mostly highlighted in the case of female market participants who are in a position of household headship. Since most African cultures dictate the role of females as solely being that of homemaker while males are assigned the role household headship and breadwinner, women often find themselves having to shoulder the household responsibilities when the household head is no longer there. This was the case in the Nelson Mandela Bay informal prickly pear market that this study sought to investigate. Even though there were also male participants in the prickly pear market, the majority of participants in the market were female who also mentioned they were the sole breadwinner for their households. This study investigated the economic contribution that the prickly pear (Opuntia ficus-indica) informal market makes to the livelihoods of people living in the Nelson Mandela Bay. The significance of the market’s contribution to their livelihoods was examined through using the Sustainable Livelihoods Framework. The study revealed that although the prickly pear income was largely supplementary due to it being available for only three months of the year, the income was a safety net resource for the market participants who had limited access to other sources of income. The results also highlighted the reasons people were engaging in the informal prickly pear market. The main reason that was mentioned was unemployment. Through a livelihoods analysis using the Sustainable Livelihoods Framework, it was revealed that the other factors that were contributing to their unemployment were low levels of education, low levels of marketable skills, and old age. The study revealed through calculations of the estimated economic value of each market activity the potential of the prickly pear to be used as a poverty fighting tool. Although the results of this study only highlight the economic value of the prickly pear to people in a small area compared to the rest of the province and the country, the informal market’s significance still presents a strong case for the establishment of an agroprocessing industry, which would support the production of value-added products. Since the largest populations of the prickly pear in Uitenhage are currently under effective control by the cochineal species, promotion of its economic value instead of eradicating it without considering its value to the livelihoods of the people in the market could also ensure that its populations are kept under control. Job creation in the agroprocessing industry would not only improve the livelihoods of those involved in the market, but would also feed into the national economy instead of taking from it via the costs incurred during clearing.
- Full Text:
- Date Issued: 2018