The hypolithic invertebrate community in the eastern Karoo: the role of rock size, microclimate and recolonization
- Authors: Van der Westhuizen, Tara
- Date: 2019
- Subjects: Habitat (Ecology) -- South Africa -- Karoo , Biotic communities -- South Africa -- Karoo Invertebrates Ecosystem management -- South Africa -- Karoo Soil microbial ecology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/44191 , vital:37128
- Description: Hypolithic habitats are important for the persistence of fauna that utilize these habitats as refuges and resource patches. Little is known, however, about the composition and structure of this community in the semi-arid Karoo. The current study therefore aims to explore the patterns and processes behind hypolithic communities, through determining the effect of rock size and baboon presence on the hypolithic community, the influence of rock size on the microclimate experienced under rocks, as well as determining the short- (over five days) and long- (over 12 months) term colonisation of the hypolithic habitat following a rock rolling disturbance, in a semi-arid Karoo environment. The hypolithic fauna encountered, and the temperature and moisture content experienced under a range of rock sizes were measured. Additionally, hypolithic fauna under rocks that were rolled to mimic rock rolling by baboons were sampled after a set period (i.e. over five days and 12 months). Large rocks were found to provide a more stable microclimate than small rocks. The probability of hypolithic fauna presence was influenced by rock size and season, and hypolithic fauna abundance (except in the dry season), richness, body size and biomass did not correlate with rock size. Additionally, the probability of detecting hypolithic fauna under intermediate sized and larger rocks was greater in the presence of baboons than in the absence of baboons, and in the presence of baboons hypolithic fauna richness increased with rock size. Furthermore, it was shown that hypolithic fauna abundance and biomass did not differ under rolled rocks over a short- (i.e. over five days) or long- (i.e. over 12 months) term period. The short-term colonisation of hypolithic habitats was not influenced by season or rock density. Lastly, most of the change in hypolithic community composition (over 12 months) occurred in the first three months and thereafter the hypolithic community composition approached pre-disturbance levels in month 12. The hypolithic habitat was shown to be influenced by a variety of conditions and processes affecting hypolithic community composition and structure. This study therefore contributes to our understanding of the hypolithic invertebrate community in the eastern Karoo, and the influence of rock size, baboon presence, microclimate and colonisation on hypolithic community composition and structure.
- Full Text:
- Date Issued: 2019
- Authors: Van der Westhuizen, Tara
- Date: 2019
- Subjects: Habitat (Ecology) -- South Africa -- Karoo , Biotic communities -- South Africa -- Karoo Invertebrates Ecosystem management -- South Africa -- Karoo Soil microbial ecology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/44191 , vital:37128
- Description: Hypolithic habitats are important for the persistence of fauna that utilize these habitats as refuges and resource patches. Little is known, however, about the composition and structure of this community in the semi-arid Karoo. The current study therefore aims to explore the patterns and processes behind hypolithic communities, through determining the effect of rock size and baboon presence on the hypolithic community, the influence of rock size on the microclimate experienced under rocks, as well as determining the short- (over five days) and long- (over 12 months) term colonisation of the hypolithic habitat following a rock rolling disturbance, in a semi-arid Karoo environment. The hypolithic fauna encountered, and the temperature and moisture content experienced under a range of rock sizes were measured. Additionally, hypolithic fauna under rocks that were rolled to mimic rock rolling by baboons were sampled after a set period (i.e. over five days and 12 months). Large rocks were found to provide a more stable microclimate than small rocks. The probability of hypolithic fauna presence was influenced by rock size and season, and hypolithic fauna abundance (except in the dry season), richness, body size and biomass did not correlate with rock size. Additionally, the probability of detecting hypolithic fauna under intermediate sized and larger rocks was greater in the presence of baboons than in the absence of baboons, and in the presence of baboons hypolithic fauna richness increased with rock size. Furthermore, it was shown that hypolithic fauna abundance and biomass did not differ under rolled rocks over a short- (i.e. over five days) or long- (i.e. over 12 months) term period. The short-term colonisation of hypolithic habitats was not influenced by season or rock density. Lastly, most of the change in hypolithic community composition (over 12 months) occurred in the first three months and thereafter the hypolithic community composition approached pre-disturbance levels in month 12. The hypolithic habitat was shown to be influenced by a variety of conditions and processes affecting hypolithic community composition and structure. This study therefore contributes to our understanding of the hypolithic invertebrate community in the eastern Karoo, and the influence of rock size, baboon presence, microclimate and colonisation on hypolithic community composition and structure.
- Full Text:
- Date Issued: 2019
A Statistical assessment of available solar resource across multiple sites in South Africa
- Authors: Eastwood, Kirstie
- Date: 2019
- Subjects: Mathematical statistics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/39907 , vital:35505
- Description: Around the globe, fossil fuels remain the primary source of energy at around 78% of the world’s total energy consumption. However, the associated carbon emissions, environmental impact, the depletion of fossil fuels and price and cost volatility are factors influencing the growing popularity of research into renewable energy. Solar power is acknowledged as the fastest-growing renewable energy, but the uncertainty surrounding the long-term projections of solar irradiance available for energy conversion is a hindrance when discussing the financial risk with potential investors. This study investigates the quality of freely available solar resource data in South Africa as well as proposes techniques for potential solar farm site comparisons. Tolerance intervals derived within a Bayesian framework provide information on the future available solar resource across multiple sites. These techniques capture the inherent variability in the available solar resource which equips investors with statistical methods that lead to the better understanding of the solar resource and thus aids in better decision-making.
- Full Text:
- Date Issued: 2019
- Authors: Eastwood, Kirstie
- Date: 2019
- Subjects: Mathematical statistics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/39907 , vital:35505
- Description: Around the globe, fossil fuels remain the primary source of energy at around 78% of the world’s total energy consumption. However, the associated carbon emissions, environmental impact, the depletion of fossil fuels and price and cost volatility are factors influencing the growing popularity of research into renewable energy. Solar power is acknowledged as the fastest-growing renewable energy, but the uncertainty surrounding the long-term projections of solar irradiance available for energy conversion is a hindrance when discussing the financial risk with potential investors. This study investigates the quality of freely available solar resource data in South Africa as well as proposes techniques for potential solar farm site comparisons. Tolerance intervals derived within a Bayesian framework provide information on the future available solar resource across multiple sites. These techniques capture the inherent variability in the available solar resource which equips investors with statistical methods that lead to the better understanding of the solar resource and thus aids in better decision-making.
- Full Text:
- Date Issued: 2019
Strategic service quality challenges within Metrorail in the Western Cape
- Skosana, Nkosinathi Thembinkosi
- Authors: Skosana, Nkosinathi Thembinkosi
- Date: 2019
- Subjects: Consumer satisfaction -- South Africa -- Western Cape , Customer relations -- Management Railroads -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/43368 , vital:36862
- Description: Service quality has become a major area of attention for organisations as there is proven research that highlights a strong link between business performance, customer loyalty, profitability and customer satisfaction. Therefore, understanding factors that influences the organisations service quality becomes vital for managements (Fukey & Issac, 2014). According to (Kotler, 1991), the main objective of any transport organisation is to achieve passenger satisfaction and loyalty, as well as a superior quality service which is envisioned to keep the service provider at a competitive position in the field of passenger transportation. The primary research problem in this study is to understand perceived service quality challenges within Metrorail Western Cape. The study employs a modified SERVPERF models in developing a model suitable for testing the perception of commuter in public rail transport. In order to assess this, the study adopts a Positivistic view with the aim to produce quantifiable data, through the use of large samples and the testing of hypotheses. The study is quantitative in principle. Quantitative study supports the use of surveys as a means of data collection and because the data is quantitative, this allows the use of rigorous statistical analyses in order come to a conclusion or finding. The results of this are of a descriptive nature and can easily be used to infer to a larger population. A total of 400 questionnaires were distributed electronically using the Questionpro links and manually distributed at stations. From the distributed total, a total of 257 responses were received and analysed using software package STATISTICA with the assistance of a qualified statistician. The key findings indicate that according to the perception of commuters, Metrorail service quality is below the expected levels. The major arears of importance for commuters in Western Cape are safety, communications and reliability of the service.
- Full Text:
- Date Issued: 2019
- Authors: Skosana, Nkosinathi Thembinkosi
- Date: 2019
- Subjects: Consumer satisfaction -- South Africa -- Western Cape , Customer relations -- Management Railroads -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/43368 , vital:36862
- Description: Service quality has become a major area of attention for organisations as there is proven research that highlights a strong link between business performance, customer loyalty, profitability and customer satisfaction. Therefore, understanding factors that influences the organisations service quality becomes vital for managements (Fukey & Issac, 2014). According to (Kotler, 1991), the main objective of any transport organisation is to achieve passenger satisfaction and loyalty, as well as a superior quality service which is envisioned to keep the service provider at a competitive position in the field of passenger transportation. The primary research problem in this study is to understand perceived service quality challenges within Metrorail Western Cape. The study employs a modified SERVPERF models in developing a model suitable for testing the perception of commuter in public rail transport. In order to assess this, the study adopts a Positivistic view with the aim to produce quantifiable data, through the use of large samples and the testing of hypotheses. The study is quantitative in principle. Quantitative study supports the use of surveys as a means of data collection and because the data is quantitative, this allows the use of rigorous statistical analyses in order come to a conclusion or finding. The results of this are of a descriptive nature and can easily be used to infer to a larger population. A total of 400 questionnaires were distributed electronically using the Questionpro links and manually distributed at stations. From the distributed total, a total of 257 responses were received and analysed using software package STATISTICA with the assistance of a qualified statistician. The key findings indicate that according to the perception of commuters, Metrorail service quality is below the expected levels. The major arears of importance for commuters in Western Cape are safety, communications and reliability of the service.
- Full Text:
- Date Issued: 2019
An investigation of the effetiveness of correctional centre-based vocational training programmes towards reducing recidivism
- Authors: Mangesi, Nosipho
- Date: 2019
- Subjects: Recidivism Social justice
- Language: English
- Type: Thesis , Masters , MSoc (Criminology)
- Identifier: http://hdl.handle.net/10353/16408 , vital:40717
- Description: Since the Department of Correctional Services has been transformed into an institution of rehabilitation and skills development, there is a need for a sound classification system whereby offenders are classified according to their potential for treatment and training programmes that match their risk/needs. The study was conducted in Middledrift Correctional Centre in the Eastern Cape with the aim of examining the effectiveness of correctionally based vocational training programmes towards reducing recidivism. Research towards correctional programmes was necessitated by the extant of recidivism in South Africa. The question is where does the problem lie because offenders are provided with rehabilitation programmes to make them law abiding citizens and reintegrate well into the community up on release but, in many cases it does not become possible as many ex-offenders return to custody either for new offence or parole violation. The study used qualitative design in data collection and in explaining the results. A sample of sixteen recidivists and five correctional officials formed participants for the study selecting using purposive sampling procedures. Involvement in vocational programmes was used as a criteria for selectiong of correctional officials as participants. In-depth interviews were conducted with eight recidivists and all five correctional officials and a focus group interview was held with the other eight set of recidivists. The study examined the impact of vocational programmes on recidivism followed by the factors that hinder effective offender rehabilitation and factors that influence recidivism up on release. The findings of this study were analysed using thematic analysis with the assistance of a voice recorder as a back up for collected data. Findings revealed that a small number of recidivists attend vocational training programmes and these programmes vi (vocational) are short in the centre together with programme facilitators at the time of reporting. Offenders stated that the available vocational programmes are of no interest to them. Participantas stated that vocational training does assist in desisting criminal activities up on release as it provide skills and opportunities for employment to curb unemployment as indicated as a major factor influencing recidivism. Findings also revealed that periodic re-assesment is not adequately conducted and classification for vocational training is not likely to be sufficiently done according to offender risk/needs. The study recommends that, a large number of offenders be provided with vocational training programmes and that offender classification incorporate the principles of RNR model
- Full Text:
- Date Issued: 2019
- Authors: Mangesi, Nosipho
- Date: 2019
- Subjects: Recidivism Social justice
- Language: English
- Type: Thesis , Masters , MSoc (Criminology)
- Identifier: http://hdl.handle.net/10353/16408 , vital:40717
- Description: Since the Department of Correctional Services has been transformed into an institution of rehabilitation and skills development, there is a need for a sound classification system whereby offenders are classified according to their potential for treatment and training programmes that match their risk/needs. The study was conducted in Middledrift Correctional Centre in the Eastern Cape with the aim of examining the effectiveness of correctionally based vocational training programmes towards reducing recidivism. Research towards correctional programmes was necessitated by the extant of recidivism in South Africa. The question is where does the problem lie because offenders are provided with rehabilitation programmes to make them law abiding citizens and reintegrate well into the community up on release but, in many cases it does not become possible as many ex-offenders return to custody either for new offence or parole violation. The study used qualitative design in data collection and in explaining the results. A sample of sixteen recidivists and five correctional officials formed participants for the study selecting using purposive sampling procedures. Involvement in vocational programmes was used as a criteria for selectiong of correctional officials as participants. In-depth interviews were conducted with eight recidivists and all five correctional officials and a focus group interview was held with the other eight set of recidivists. The study examined the impact of vocational programmes on recidivism followed by the factors that hinder effective offender rehabilitation and factors that influence recidivism up on release. The findings of this study were analysed using thematic analysis with the assistance of a voice recorder as a back up for collected data. Findings revealed that a small number of recidivists attend vocational training programmes and these programmes vi (vocational) are short in the centre together with programme facilitators at the time of reporting. Offenders stated that the available vocational programmes are of no interest to them. Participantas stated that vocational training does assist in desisting criminal activities up on release as it provide skills and opportunities for employment to curb unemployment as indicated as a major factor influencing recidivism. Findings also revealed that periodic re-assesment is not adequately conducted and classification for vocational training is not likely to be sufficiently done according to offender risk/needs. The study recommends that, a large number of offenders be provided with vocational training programmes and that offender classification incorporate the principles of RNR model
- Full Text:
- Date Issued: 2019
Clinical psychologists’ perceptions of the phenomenon of schizophrenia in a psychiatric setting in the Eastern Cape, South Africa
- Authors: Hamman, Colette
- Date: 2019
- Subjects: Schizophrenia -- Diagnosis -- South Africa , Schizophrenia -- Treatment -- South Africa , Schizophrenics -- Rehabilitation -- South Africa , Schizophrenics -- South Africa -- Case studies
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/71398 , vital:29845
- Description: Numerous international and South African scholars are critical of the dominant research on the phenomenon of schizophrenia. Rather than refuting dominant biomedical psychiatric conceptualisations of schizophrenia, there is a call for incorporating a focus on the psychology of the person diagnosed with schizophrenia. In South Africa, the integration of the psychosocial components of psychotic experiences into the understanding and treatment of psychosis are still neglected in biomedically-focused psychiatric settings. In relation to this call, the role of clinical psychologists working within these settings seems pertinent. Against this background, this study aimed to explore and describe the perceptions of clinical psychologists, working in a psychiatric setting in South Africa, in relation to the phenomenon of schizophrenia. Informed by a social constructionist theoretical framework, this study utilised a qualitative research design and a semi-structured interview schedule. In-depth, individual interviews were conducted with three clinical psychologists and the transcribed interviews were analysed using thematic analysis. From the data, perceptions were identified as largely polarised in relation to the phenomenon of schizophrenia. These polarised perceptions included: Physical impact of schizophrenia versus social impact of schizophrenia; rehabilitation of schizophrenia versus recovery within schizophrenia; diagnostic frameworks as useful versus diagnostic frameworks as limiting; and institutionally-defined identity versus self-defined identity. In terms of these polarised perceptions, an overarching theme of the medicalisation versus the demedicalisation of schizophrenia was identified. Therefore, the perceptions of clinical psychologists in this study were largely polarised towards either a medicalisation of the phenomenon of schizophrenia or a demedicalisation of it. However, perceptions were also identified that evidenced an integration of the two sides of the polarities, and a holding of tension between seemingly incompatible or incongruent frameworks. The participants perceived psychologists as positioned in the middle ground between the medicalisation and demedicalisation of schizophrenia in a biomedical psychiatric setting. In response to the call for a focus on the psychology of the person diagnosed with schizophrenia, the findings support both the value and the need for an “integration of polarised perceptions”, “holding of the tension”, and “middle ground positioning” of clinicians between medicalised and demedicalised aspects of the phenomenon of schizophrenia.
- Full Text:
- Date Issued: 2019
- Authors: Hamman, Colette
- Date: 2019
- Subjects: Schizophrenia -- Diagnosis -- South Africa , Schizophrenia -- Treatment -- South Africa , Schizophrenics -- Rehabilitation -- South Africa , Schizophrenics -- South Africa -- Case studies
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/71398 , vital:29845
- Description: Numerous international and South African scholars are critical of the dominant research on the phenomenon of schizophrenia. Rather than refuting dominant biomedical psychiatric conceptualisations of schizophrenia, there is a call for incorporating a focus on the psychology of the person diagnosed with schizophrenia. In South Africa, the integration of the psychosocial components of psychotic experiences into the understanding and treatment of psychosis are still neglected in biomedically-focused psychiatric settings. In relation to this call, the role of clinical psychologists working within these settings seems pertinent. Against this background, this study aimed to explore and describe the perceptions of clinical psychologists, working in a psychiatric setting in South Africa, in relation to the phenomenon of schizophrenia. Informed by a social constructionist theoretical framework, this study utilised a qualitative research design and a semi-structured interview schedule. In-depth, individual interviews were conducted with three clinical psychologists and the transcribed interviews were analysed using thematic analysis. From the data, perceptions were identified as largely polarised in relation to the phenomenon of schizophrenia. These polarised perceptions included: Physical impact of schizophrenia versus social impact of schizophrenia; rehabilitation of schizophrenia versus recovery within schizophrenia; diagnostic frameworks as useful versus diagnostic frameworks as limiting; and institutionally-defined identity versus self-defined identity. In terms of these polarised perceptions, an overarching theme of the medicalisation versus the demedicalisation of schizophrenia was identified. Therefore, the perceptions of clinical psychologists in this study were largely polarised towards either a medicalisation of the phenomenon of schizophrenia or a demedicalisation of it. However, perceptions were also identified that evidenced an integration of the two sides of the polarities, and a holding of tension between seemingly incompatible or incongruent frameworks. The participants perceived psychologists as positioned in the middle ground between the medicalisation and demedicalisation of schizophrenia in a biomedical psychiatric setting. In response to the call for a focus on the psychology of the person diagnosed with schizophrenia, the findings support both the value and the need for an “integration of polarised perceptions”, “holding of the tension”, and “middle ground positioning” of clinicians between medicalised and demedicalised aspects of the phenomenon of schizophrenia.
- Full Text:
- Date Issued: 2019
A study on technology adoption in agriculture in the Eastern Cape
- Authors: Keevy, Christine
- Date: 2019
- Subjects: Agricultural implements -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/48628 , vital:41054
- Description: arrival of the Fourth Industrial Revolution has brought with it a vast array of new technologies that can be applied across many industries and various applications, to help solve many of the social, economic and environmental issues the world faces. However, it also heralds in an unprecedented rate of change. The agricultural industry is expected to be heavily affected by new technology. As they are run by smaller management teams they may need support from organisations to introduce technologies. The study aims to identify drivers and barriers to technology adoption in agriculture through a conceptual model based on the Technology Adoption Model, Diffusion of Innovation Theory, and a Technology-Organisation-Environment Model, along with a thorough industry analysis. The study obtained quantitative data from 59 respondents from the Eastern Cape farming community. The key findings include the identification of Perceived Usefulness and Industry Pressures as the variables with a significant driving influence on the intention to adopt new technologies. However, Perceived Ease of Use, Employee Knowledge and External Support Structures were found to have a negative relationship with the adoption of technology. It has been interpreted that improvements in these areas may enable farmers to adopt technology more easily but that farmers feel sufficient pressure to make them adopt technology despite the complexities and lack of required internal skills or external support. Due to the low number of respondents, it is not possible to infer the findings on the larger population of farmers. The findings can therefore only be used as exploratory findings which need to be verified in focus groups, with farmers, before any action is taken. However, the findings in the study can be used to aid the definition of frameworks for further studies and the development of action plans to support farmers in the adoption of technology.
- Full Text:
- Date Issued: 2019
- Authors: Keevy, Christine
- Date: 2019
- Subjects: Agricultural implements -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/48628 , vital:41054
- Description: arrival of the Fourth Industrial Revolution has brought with it a vast array of new technologies that can be applied across many industries and various applications, to help solve many of the social, economic and environmental issues the world faces. However, it also heralds in an unprecedented rate of change. The agricultural industry is expected to be heavily affected by new technology. As they are run by smaller management teams they may need support from organisations to introduce technologies. The study aims to identify drivers and barriers to technology adoption in agriculture through a conceptual model based on the Technology Adoption Model, Diffusion of Innovation Theory, and a Technology-Organisation-Environment Model, along with a thorough industry analysis. The study obtained quantitative data from 59 respondents from the Eastern Cape farming community. The key findings include the identification of Perceived Usefulness and Industry Pressures as the variables with a significant driving influence on the intention to adopt new technologies. However, Perceived Ease of Use, Employee Knowledge and External Support Structures were found to have a negative relationship with the adoption of technology. It has been interpreted that improvements in these areas may enable farmers to adopt technology more easily but that farmers feel sufficient pressure to make them adopt technology despite the complexities and lack of required internal skills or external support. Due to the low number of respondents, it is not possible to infer the findings on the larger population of farmers. The findings can therefore only be used as exploratory findings which need to be verified in focus groups, with farmers, before any action is taken. However, the findings in the study can be used to aid the definition of frameworks for further studies and the development of action plans to support farmers in the adoption of technology.
- Full Text:
- Date Issued: 2019
Pharmacy personnel practices with regard to the sale of non-prescription asthma medication in community pharmacies in the Eastern and Western Cape
- Gebers, Benjamin Herman Charles
- Authors: Gebers, Benjamin Herman Charles
- Date: 2019
- Subjects: Pharmacy -- Practice , Pharmaceutical services -- South Africa -- Eastern Cape Pharmaceutical services -- South Africa Western Cape Drug utilization Asthma
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: http://hdl.handle.net/10948/39752 , vital:35354
- Description: Short Acting Beta Agonist (SABA) inhalers in South Africa are available to patients without a prescription from an authorised prescriber. This study utilised a mystery shopping technique to observe, record and compare the dispensing practices of pharmacy personnel, when dispensing a reliever inhaler, to the minimum requirements set out by the South African Pharmacy Council. The results of this study indicated that there was no adherence to the minimum requirements when dispensing a reliever inhaler.
- Full Text:
- Date Issued: 2019
- Authors: Gebers, Benjamin Herman Charles
- Date: 2019
- Subjects: Pharmacy -- Practice , Pharmaceutical services -- South Africa -- Eastern Cape Pharmaceutical services -- South Africa Western Cape Drug utilization Asthma
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: http://hdl.handle.net/10948/39752 , vital:35354
- Description: Short Acting Beta Agonist (SABA) inhalers in South Africa are available to patients without a prescription from an authorised prescriber. This study utilised a mystery shopping technique to observe, record and compare the dispensing practices of pharmacy personnel, when dispensing a reliever inhaler, to the minimum requirements set out by the South African Pharmacy Council. The results of this study indicated that there was no adherence to the minimum requirements when dispensing a reliever inhaler.
- Full Text:
- Date Issued: 2019
Isixhosa speaking biological fathers’ perceptions and experiences of parental alienation
- Mokolobate, Motshabi Catherine
- Authors: Mokolobate, Motshabi Catherine
- Date: 2019
- Subjects: Parental alienation syndrome , Fatherhood -- Psychological aspects Father and Child -- Psychological aspects Parenting -- Psychological aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/45053 , vital:38229
- Description: There has been a positive shift in South African laws advocating for children and father’s rights to parent-child relationships. Children often get caught in the middle of their parents’ enduring battles and acrimonious separations or divorces frequently resulting in loss of contact with one parent. The term parental alienation is used to describe this phenomenon. Parental alienation can take many forms with the common thread being the negative impact that it has on the parent-child relationship and an increase in father absenteeism. The psychological effects of absent fathers on children and single parenthood are significant and contribute to social ailments such as substance abuse, violence and abuse. Extensive research has been conducted on the effects of parental alienation on children; however, there is limited research on how fathers experience parental alienation and how it shapes their perception of fatherhood. This study aimed to explore and describe the perceptions and experiences of fathers who have experienced parental alienation. A purposive sampling method was utilized using 6 participants who were sourced from a male-focused NGO in Zwide Township in the Port Elizabeth Metropolitan area. Data was collected through in-depth semi-structured audio taped interviews. Transcribed data was analysed by means of thematic analysis following Guba’s Model of Trustworthiness as a guide for data verification. All necessary ethical considerations were adhered to. Four themes emerged from the study. Participants understood and experienced parental alienation as unjust and painful; parental alienation was perceived as complex and challenging; upbringing influenced their paternal involvement and finally parental alienation affected their perception of fatherhood and their construction of paternal identity.
- Full Text:
- Date Issued: 2019
- Authors: Mokolobate, Motshabi Catherine
- Date: 2019
- Subjects: Parental alienation syndrome , Fatherhood -- Psychological aspects Father and Child -- Psychological aspects Parenting -- Psychological aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/45053 , vital:38229
- Description: There has been a positive shift in South African laws advocating for children and father’s rights to parent-child relationships. Children often get caught in the middle of their parents’ enduring battles and acrimonious separations or divorces frequently resulting in loss of contact with one parent. The term parental alienation is used to describe this phenomenon. Parental alienation can take many forms with the common thread being the negative impact that it has on the parent-child relationship and an increase in father absenteeism. The psychological effects of absent fathers on children and single parenthood are significant and contribute to social ailments such as substance abuse, violence and abuse. Extensive research has been conducted on the effects of parental alienation on children; however, there is limited research on how fathers experience parental alienation and how it shapes their perception of fatherhood. This study aimed to explore and describe the perceptions and experiences of fathers who have experienced parental alienation. A purposive sampling method was utilized using 6 participants who were sourced from a male-focused NGO in Zwide Township in the Port Elizabeth Metropolitan area. Data was collected through in-depth semi-structured audio taped interviews. Transcribed data was analysed by means of thematic analysis following Guba’s Model of Trustworthiness as a guide for data verification. All necessary ethical considerations were adhered to. Four themes emerged from the study. Participants understood and experienced parental alienation as unjust and painful; parental alienation was perceived as complex and challenging; upbringing influenced their paternal involvement and finally parental alienation affected their perception of fatherhood and their construction of paternal identity.
- Full Text:
- Date Issued: 2019
Development of polypropylene – waste tyre crumbs based tpe's with the aid of vistamaxxtm as a compatibiliser
- Authors: Masele, Siyamtanda
- Date: 2019
- Subjects: Polymers , Polymerization Crumb rubber Rubber
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/42589 , vital:36670
- Description: Polypropylene (PP) is a semi crystalline thermoplastic polymer and one of the most commonly used polyolefins. It is well known for its poor impact resistance; hence, for industries such as the automotive and packaging, reinforced PP is widely used. In general plastic waste disposal is a global crisis raising environmental and human health concerns, with PP being the highest consumed polymer globally; hence a push in the reuse and recycling of PP. Recycled polypropylene has limited uses for industrial applications due to its highly reduced properties owing to the recycling process which inhabits cutting of chains lengths, broadened molecular weight distributions and compromised crystallinity. Several studies have investigated the use of reinforcing fillers and modifiers in order to improve properties of PP. Inorganic materials and minerals such as CaCO3, Mica, Talc and glass fibre are used as fillers to improve mechanical properties (tensile and hardness), but still lacks in improving the impact resistance. Thermoplastic elastomers (TPE) are typically used where elastomer and thermoplastics fail as individual components. This is because they have the benefit of thermoplastic properties at hypo ambient condition and elastomer properties such as good impact and elongation at sub-zero conditions. The study took a route of using PP and waste tyre crumb rubber (CR) material to prepare potentially low-cost waste based TPE’s, which would then inherit both properties of PP and the rubber component. VistamaxxTM 6202 (EPR), a commercial name for ethylene-propylene monomer (EPR), was used as a compatibiliser to improve interaction between PP and CR and to contribute towards the overall improvement of various properties such as mechanical properties. VistamaxxTM has a low glass transition temperature (Tg, = -30 ºC), which is important for low temperature applications such as cold storage; it also has a very high elongation and as a result contributed significantly to the overall properties when used in TPE blends. The study highlighted differences between two TPE compounding formulation pathways; namely master-batch (MB) and design of experiments (DoE). The MB formulations were blends that were prepared by a conventional way of compounding; where a pre-mixed CR/EPR blend, in the ratio of 80(CR):20(EPR), was used to form a master-batch. Results showed that there are some similarities between TPEs prepared in different ways, which suggests that the ultimate properties such as thermal stability are in fact more PP matrix based. Thermal analyses results revealed that when high amount of CR was added to the TPE blends, there was a substantial amount of residue mainly due to inherent carbon black. The degree of crystallinity of the blends decreased with increased amounts of CR irrespective of whether it was the MB or DoE blends. The MB TPE blends demonstrated that hardness is not linked to the amount of the MB nor the crystallinity of blends. Meanwhile, tensile elongation and tensile stress were affected by crystallinity. On the other hand, the impact strength findings showed that the amount of MB in TPE blends reached a threshold at 30%. The DoE based TPE blends demonstrated that the optimum mechanical properties are observed when components of the blends are incorporated individually during compounding. This was observed for impact strength, tensile stress as well as elongation at break. The results showed that the incorporation of EPR should be at least 20% for good impact and elongation properties; however, for tensile and hardness, the PP matrix must be high. The study also showed that, for better mechanical properties it was more suitable to use the blends formulated with DoE, because the master-batch approach limited the improving of the mechanical properties by an addition of up to 30% of both the CR and EPR. The storage modulus as well as the tan delta for both MB and DoE decreased when the elastomeric phases were added on both methods, whereas tan delta Tg values decreased as more of the elastomeric phase was added. Evidence from morphology studies showed that the majority of TPE blends suffer from inadequate distribution and adhesion between PP and elastomer; resulting in poor mechanical properties. Furthermore, a threshold of matrix invasion is observed from 30% and above of CR in the blend, where lack of in capsulated lamps of CR were observed hindering the stress induced crystallization and relaxation of the PP phase. The latter was observed irrespective of the type of blend, which strongly suggests and highlights the limits of blending PP with elastomers. Study demonstrated the ability of VistamaxxTM to be utilized as a binding material for PP and CR and displaying the challenges that might arise when used as a master-batch with crumb rubber.
- Full Text:
- Date Issued: 2019
- Authors: Masele, Siyamtanda
- Date: 2019
- Subjects: Polymers , Polymerization Crumb rubber Rubber
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: http://hdl.handle.net/10948/42589 , vital:36670
- Description: Polypropylene (PP) is a semi crystalline thermoplastic polymer and one of the most commonly used polyolefins. It is well known for its poor impact resistance; hence, for industries such as the automotive and packaging, reinforced PP is widely used. In general plastic waste disposal is a global crisis raising environmental and human health concerns, with PP being the highest consumed polymer globally; hence a push in the reuse and recycling of PP. Recycled polypropylene has limited uses for industrial applications due to its highly reduced properties owing to the recycling process which inhabits cutting of chains lengths, broadened molecular weight distributions and compromised crystallinity. Several studies have investigated the use of reinforcing fillers and modifiers in order to improve properties of PP. Inorganic materials and minerals such as CaCO3, Mica, Talc and glass fibre are used as fillers to improve mechanical properties (tensile and hardness), but still lacks in improving the impact resistance. Thermoplastic elastomers (TPE) are typically used where elastomer and thermoplastics fail as individual components. This is because they have the benefit of thermoplastic properties at hypo ambient condition and elastomer properties such as good impact and elongation at sub-zero conditions. The study took a route of using PP and waste tyre crumb rubber (CR) material to prepare potentially low-cost waste based TPE’s, which would then inherit both properties of PP and the rubber component. VistamaxxTM 6202 (EPR), a commercial name for ethylene-propylene monomer (EPR), was used as a compatibiliser to improve interaction between PP and CR and to contribute towards the overall improvement of various properties such as mechanical properties. VistamaxxTM has a low glass transition temperature (Tg, = -30 ºC), which is important for low temperature applications such as cold storage; it also has a very high elongation and as a result contributed significantly to the overall properties when used in TPE blends. The study highlighted differences between two TPE compounding formulation pathways; namely master-batch (MB) and design of experiments (DoE). The MB formulations were blends that were prepared by a conventional way of compounding; where a pre-mixed CR/EPR blend, in the ratio of 80(CR):20(EPR), was used to form a master-batch. Results showed that there are some similarities between TPEs prepared in different ways, which suggests that the ultimate properties such as thermal stability are in fact more PP matrix based. Thermal analyses results revealed that when high amount of CR was added to the TPE blends, there was a substantial amount of residue mainly due to inherent carbon black. The degree of crystallinity of the blends decreased with increased amounts of CR irrespective of whether it was the MB or DoE blends. The MB TPE blends demonstrated that hardness is not linked to the amount of the MB nor the crystallinity of blends. Meanwhile, tensile elongation and tensile stress were affected by crystallinity. On the other hand, the impact strength findings showed that the amount of MB in TPE blends reached a threshold at 30%. The DoE based TPE blends demonstrated that the optimum mechanical properties are observed when components of the blends are incorporated individually during compounding. This was observed for impact strength, tensile stress as well as elongation at break. The results showed that the incorporation of EPR should be at least 20% for good impact and elongation properties; however, for tensile and hardness, the PP matrix must be high. The study also showed that, for better mechanical properties it was more suitable to use the blends formulated with DoE, because the master-batch approach limited the improving of the mechanical properties by an addition of up to 30% of both the CR and EPR. The storage modulus as well as the tan delta for both MB and DoE decreased when the elastomeric phases were added on both methods, whereas tan delta Tg values decreased as more of the elastomeric phase was added. Evidence from morphology studies showed that the majority of TPE blends suffer from inadequate distribution and adhesion between PP and elastomer; resulting in poor mechanical properties. Furthermore, a threshold of matrix invasion is observed from 30% and above of CR in the blend, where lack of in capsulated lamps of CR were observed hindering the stress induced crystallization and relaxation of the PP phase. The latter was observed irrespective of the type of blend, which strongly suggests and highlights the limits of blending PP with elastomers. Study demonstrated the ability of VistamaxxTM to be utilized as a binding material for PP and CR and displaying the challenges that might arise when used as a master-batch with crumb rubber.
- Full Text:
- Date Issued: 2019
SME development policy and financing of women-owned enterprises in Zimbabwe
- Authors: Chikwavarara, Bigbouy
- Date: 2019
- Subjects: Women-owned business enterprises -- Zimbabwe , Small business -- women -- Zimbabwe Business enterprises -- Finance -- Zimbabwe Small business -- Finance -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: http://hdl.handle.net/10948/37969 , vital:34275
- Description: This cross-sectional quasi-experimental research applied a combination of an indepth literature review, key informant interviews and a small- and medium-sized enterprise (SME) survey to identify key policies which influence access to formal finance for women-owned SMEs in Zimbabwe. The study then applied Sandiford and Rossmiller’s 4Es (effectiveness, efficiency, enforceability and equity) framework for policy analysis to identify gaps in the SME development policy framework, which inhibit female entrepreneurs from access to formal finance. The study also reviewed India’s SME development policy framework to identify lessons that Zimbabwe could learn. The study found that female entrepreneurs in Zimbabwe are rarely engaged during the design and implementation of SME policies; hence they lack knowledge of interventions which affect their businesses. The study also found that Zimbabwe lacks current data and knowledge on how the current SME policy framework affects women-owned SMEs to access finance. As a result, SME policies are not evidence based, are hurriedly implemented and lead to duplication and uncoordinated efforts. In addition, SME policies are not systematically evaluated so as to better inform implementation thereof or follow on policies. The study concluded that Zimbabwe’s SME development policy ranks low on all the 4Es - effectiveness, efficiency, enforceability and equity in promoting access to finance for women-owned SMEs. The study recommends the Government of Zimbabwe (GoZ) to invest in timely policy research and analysis to better understand women-owned SMEs’ access to finance challenges and adopt evidence based policy making and implementation. The study also recommends the GoZ to learn from India how to enhance the SME development policy framework by building the capacity of female entrepreneurs and financial institutions to close the deeply entrenched information and confidence gaps on access to finance issues.
- Full Text:
- Date Issued: 2019
- Authors: Chikwavarara, Bigbouy
- Date: 2019
- Subjects: Women-owned business enterprises -- Zimbabwe , Small business -- women -- Zimbabwe Business enterprises -- Finance -- Zimbabwe Small business -- Finance -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MPhil
- Identifier: http://hdl.handle.net/10948/37969 , vital:34275
- Description: This cross-sectional quasi-experimental research applied a combination of an indepth literature review, key informant interviews and a small- and medium-sized enterprise (SME) survey to identify key policies which influence access to formal finance for women-owned SMEs in Zimbabwe. The study then applied Sandiford and Rossmiller’s 4Es (effectiveness, efficiency, enforceability and equity) framework for policy analysis to identify gaps in the SME development policy framework, which inhibit female entrepreneurs from access to formal finance. The study also reviewed India’s SME development policy framework to identify lessons that Zimbabwe could learn. The study found that female entrepreneurs in Zimbabwe are rarely engaged during the design and implementation of SME policies; hence they lack knowledge of interventions which affect their businesses. The study also found that Zimbabwe lacks current data and knowledge on how the current SME policy framework affects women-owned SMEs to access finance. As a result, SME policies are not evidence based, are hurriedly implemented and lead to duplication and uncoordinated efforts. In addition, SME policies are not systematically evaluated so as to better inform implementation thereof or follow on policies. The study concluded that Zimbabwe’s SME development policy ranks low on all the 4Es - effectiveness, efficiency, enforceability and equity in promoting access to finance for women-owned SMEs. The study recommends the Government of Zimbabwe (GoZ) to invest in timely policy research and analysis to better understand women-owned SMEs’ access to finance challenges and adopt evidence based policy making and implementation. The study also recommends the GoZ to learn from India how to enhance the SME development policy framework by building the capacity of female entrepreneurs and financial institutions to close the deeply entrenched information and confidence gaps on access to finance issues.
- Full Text:
- Date Issued: 2019
Distribution of virulence determinants in some members of the ESKAPE pathogens isolated from selected hospital wastewater effluents in the Eastern Cape, South Africa
- Authors: Mapipa, Qaqamba
- Date: 2019
- Subjects: Effluent quality Water -- Purification
- Language: English
- Type: Thesis , Masters , MSc (Microbiology)
- Identifier: http://hdl.handle.net/10353/14704 , vital:40061
- Description: Members of ESKAPE pathogens are grouped under the acronymn made up of Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species. ESKAPE pathogens, isolated from hospitals and communities, have just been characterized for new pathogenesis and transmission patterns and overcoming the usefulness of available drugs, this leads to infections that tend to increase the rate of disease in a population and death rate and cost our society massively. The distribution of virulence determinants and the antibiotic susceptibility patterns in some members of the ESKAPE pathogens isolated from hospital wastewater facilities that were selected within the Eastern Cape Province, South Africa was evaluated. Water samples from the hospital wastewater facilities were collected fortnightly over a period of three (3) months (February to April). Spread plate technique was employed for the enumeration and isolation of the members of ESKAPE pathogens. A total of 725 presumptive ESKAPE isolates were collected, screened and Polymerase Chain Reaction (PCR) amplification of target determinants was performed. Results showed that Klebsiella pneumoniae tested positive for ninety two (92=35.9%) samples, Enterobacter cloacae fifty seven (57=22.2%) samples tested positive, Pseudomonas aeruginosa fifty four (54=21.09%) isolates tested positive and fifty three (53=20.7%) isolates tested positive for Acinetobacter baumannii making a total of 256 isolates which tested positive for some members of ESKAPE pathogens. The detection of some members of the ESKAPE pathogens in these Hospitals is a cause of concern to public health. A total of 256 ESKAPE isolates that were obtained from the hospital wastewater facilities; were subjected to antibiotic susceptibility test in order to determine their antibiotic-resistant profiles. ESKAPE isolates recovered from the three hospital effluents showing resistance to antimicrobial agents in this study were further evaluated for resistance determinants namely, sulfonamides resistance determinants (sulI and sulII), β-lactams (ampC, blaTEM and blaZ), tetracyclines (tetA, tetB, tetC and tetM), 10 chloramphenicol’s (catI and catII) and aminoglycoside resistance determinants (aacC2, apHAI and apHAII). The resistant determinants targeted have been evaluated through their prevalence and the following distributions were obtained: [β-Lactams; ampC (80%), blaTEM (77%)]; [Tetracyclines; tetA (87%)]; [Sulfonamides; sulI (79%)]; [Aminoglycosides; aacC2 (12%), aphA2 (52%) and aadA (18%)]. With the worldwide increase in these resistant occurrences, the execution of strict infection control policies and treatment with different antimicrobials needs hasty detection. Comprehensive data are therefore needed so that the history of infection, identification of genes present in organisms and monitoring of changes in infection patterns can be traced correctly.
- Full Text:
- Date Issued: 2019
- Authors: Mapipa, Qaqamba
- Date: 2019
- Subjects: Effluent quality Water -- Purification
- Language: English
- Type: Thesis , Masters , MSc (Microbiology)
- Identifier: http://hdl.handle.net/10353/14704 , vital:40061
- Description: Members of ESKAPE pathogens are grouped under the acronymn made up of Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa, and Enterobacter species. ESKAPE pathogens, isolated from hospitals and communities, have just been characterized for new pathogenesis and transmission patterns and overcoming the usefulness of available drugs, this leads to infections that tend to increase the rate of disease in a population and death rate and cost our society massively. The distribution of virulence determinants and the antibiotic susceptibility patterns in some members of the ESKAPE pathogens isolated from hospital wastewater facilities that were selected within the Eastern Cape Province, South Africa was evaluated. Water samples from the hospital wastewater facilities were collected fortnightly over a period of three (3) months (February to April). Spread plate technique was employed for the enumeration and isolation of the members of ESKAPE pathogens. A total of 725 presumptive ESKAPE isolates were collected, screened and Polymerase Chain Reaction (PCR) amplification of target determinants was performed. Results showed that Klebsiella pneumoniae tested positive for ninety two (92=35.9%) samples, Enterobacter cloacae fifty seven (57=22.2%) samples tested positive, Pseudomonas aeruginosa fifty four (54=21.09%) isolates tested positive and fifty three (53=20.7%) isolates tested positive for Acinetobacter baumannii making a total of 256 isolates which tested positive for some members of ESKAPE pathogens. The detection of some members of the ESKAPE pathogens in these Hospitals is a cause of concern to public health. A total of 256 ESKAPE isolates that were obtained from the hospital wastewater facilities; were subjected to antibiotic susceptibility test in order to determine their antibiotic-resistant profiles. ESKAPE isolates recovered from the three hospital effluents showing resistance to antimicrobial agents in this study were further evaluated for resistance determinants namely, sulfonamides resistance determinants (sulI and sulII), β-lactams (ampC, blaTEM and blaZ), tetracyclines (tetA, tetB, tetC and tetM), 10 chloramphenicol’s (catI and catII) and aminoglycoside resistance determinants (aacC2, apHAI and apHAII). The resistant determinants targeted have been evaluated through their prevalence and the following distributions were obtained: [β-Lactams; ampC (80%), blaTEM (77%)]; [Tetracyclines; tetA (87%)]; [Sulfonamides; sulI (79%)]; [Aminoglycosides; aacC2 (12%), aphA2 (52%) and aadA (18%)]. With the worldwide increase in these resistant occurrences, the execution of strict infection control policies and treatment with different antimicrobials needs hasty detection. Comprehensive data are therefore needed so that the history of infection, identification of genes present in organisms and monitoring of changes in infection patterns can be traced correctly.
- Full Text:
- Date Issued: 2019
The impact of perceived ethical leadership on employees’ predisposition to behave ethically: a case study within a South African-based financial institution
- Authors: Rudzani, Magau
- Date: 2019
- Subjects: Leadership -- Moral and ethical aspects , Leadership Business ethics Ethics
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/40768 , vital:36234
- Description: Ethical leaders consistently set ethical principles within the institution and act in accordance with them; hence, leaders should be a key source of ethical guidance for employees. As the business world is constantly evolving, leaders increasingly are required to ethically lead across different sectors. Current literature on ethical leadership and its influence of employees reflects mostly a Western, European and Asian-based private-sector perspective, pointing toward a compliance-oriented understanding of ethical and unethical leadership. This study examined how perceived ethical orientation of a leader has an impact on employees’ predisposition to behave ethically within a South African context. Qualitative data was collected as the study adopted the interpretivist paradigm, which made it easier for participants to use descriptive words and qualifying statements to express the level of influence their leaders had on their ethical orientation. The target population of the study included all staff of the institution; and participants were chosen using the purposive sampling method. Data was collected from 12 employees using semi-structure interviews. Thereafter, thematic analysis was used to identify and organise participants’ experiences into themes that established the basis for the study findings. These findings confirmed that perceived leader ethical orientation has an impact on employees’ predisposition to behave ethically. The study found that ethical leaders had a track record of being consistent, honest, trustworthy, truthful and credible, and being a role model. In addition, the study also found that unethical leaders are easily identifiable by their perpetual inability to uphold principles of integrity, reliability, rationality, and social justice and fairness. The researcher concluded that the moral identity of the leader has an influence on followers’ predisposition to behave ethically or unethically. The implications of this study are that ethical morals, by their very nature, are transferable from one person to the other and ethical leadership was one antecedent through which this transfer takes place. However, ethical leadership was not the only apparatus that influenced employees’ ethical predisposition and these afford opportunities for future research.
- Full Text:
- Date Issued: 2019
- Authors: Rudzani, Magau
- Date: 2019
- Subjects: Leadership -- Moral and ethical aspects , Leadership Business ethics Ethics
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/40768 , vital:36234
- Description: Ethical leaders consistently set ethical principles within the institution and act in accordance with them; hence, leaders should be a key source of ethical guidance for employees. As the business world is constantly evolving, leaders increasingly are required to ethically lead across different sectors. Current literature on ethical leadership and its influence of employees reflects mostly a Western, European and Asian-based private-sector perspective, pointing toward a compliance-oriented understanding of ethical and unethical leadership. This study examined how perceived ethical orientation of a leader has an impact on employees’ predisposition to behave ethically within a South African context. Qualitative data was collected as the study adopted the interpretivist paradigm, which made it easier for participants to use descriptive words and qualifying statements to express the level of influence their leaders had on their ethical orientation. The target population of the study included all staff of the institution; and participants were chosen using the purposive sampling method. Data was collected from 12 employees using semi-structure interviews. Thereafter, thematic analysis was used to identify and organise participants’ experiences into themes that established the basis for the study findings. These findings confirmed that perceived leader ethical orientation has an impact on employees’ predisposition to behave ethically. The study found that ethical leaders had a track record of being consistent, honest, trustworthy, truthful and credible, and being a role model. In addition, the study also found that unethical leaders are easily identifiable by their perpetual inability to uphold principles of integrity, reliability, rationality, and social justice and fairness. The researcher concluded that the moral identity of the leader has an influence on followers’ predisposition to behave ethically or unethically. The implications of this study are that ethical morals, by their very nature, are transferable from one person to the other and ethical leadership was one antecedent through which this transfer takes place. However, ethical leadership was not the only apparatus that influenced employees’ ethical predisposition and these afford opportunities for future research.
- Full Text:
- Date Issued: 2019
Exploring cultural understandings of traumatic stress among the Amaxhosa traditional healers in the Eastern Cape
- Authors: Mlonyeni, Makhi
- Date: 2019
- Subjects: Post-traumatic stress disorder -- South Africa -- Eastern Cape , Herbalists -- Psychological aspects Herbalists -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/45042 , vital:38228
- Description: Psychology is an essentially Eurocentric discipline. In a world that is becoming progressively aware, tolerant and accepting of differences among people, there is growing interest to challenge and amend psychological constructs that are unfairly generalized universally. Literature abounds with appeals for more research to be conducted on nonwestern cultures so that scholars can be at a better position to ‘decolonise’ the PTSD diagnosis as they will then have an improved understanding of understudied non-western societies. The Eastern Cape province of South Africa is home to the AmaXhosa tribe, the second largest ethnic group in the country. This study seeks to explore indigenous understandings and coping strategies of these people in regards to traumatic exposure. This is done through gaining insights of AmaXhosa traditional healers- Amagqirha (Diviners) and AmaXhwele (Herbalists). A sample of eight participants is sourced from Grahamstown (Makhanda) and the rural areas of Peddie (Ngqushwa). Through the use of two case studies that are presented and open ended follow up questions, the traditional healers relate their perspectives on how they interpret symptoms of psychological trauma and the strategies they employ to facilitate coping/healing of their clients in their context. It was discovered that traditional healers perceived traumatic events as phenomena that befalls only those that are spiritually vulnerable, either due to strained relationships with their ancestors, bewitchment by an enemy or jealous person or simply torment by a wandering wicked spirit. Rituals and practices of how to combat this vulnerability are then outlined.
- Full Text:
- Date Issued: 2019
- Authors: Mlonyeni, Makhi
- Date: 2019
- Subjects: Post-traumatic stress disorder -- South Africa -- Eastern Cape , Herbalists -- Psychological aspects Herbalists -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/45042 , vital:38228
- Description: Psychology is an essentially Eurocentric discipline. In a world that is becoming progressively aware, tolerant and accepting of differences among people, there is growing interest to challenge and amend psychological constructs that are unfairly generalized universally. Literature abounds with appeals for more research to be conducted on nonwestern cultures so that scholars can be at a better position to ‘decolonise’ the PTSD diagnosis as they will then have an improved understanding of understudied non-western societies. The Eastern Cape province of South Africa is home to the AmaXhosa tribe, the second largest ethnic group in the country. This study seeks to explore indigenous understandings and coping strategies of these people in regards to traumatic exposure. This is done through gaining insights of AmaXhosa traditional healers- Amagqirha (Diviners) and AmaXhwele (Herbalists). A sample of eight participants is sourced from Grahamstown (Makhanda) and the rural areas of Peddie (Ngqushwa). Through the use of two case studies that are presented and open ended follow up questions, the traditional healers relate their perspectives on how they interpret symptoms of psychological trauma and the strategies they employ to facilitate coping/healing of their clients in their context. It was discovered that traditional healers perceived traumatic events as phenomena that befalls only those that are spiritually vulnerable, either due to strained relationships with their ancestors, bewitchment by an enemy or jealous person or simply torment by a wandering wicked spirit. Rituals and practices of how to combat this vulnerability are then outlined.
- Full Text:
- Date Issued: 2019
Blockchain potential and disruptors for South Africa towards 2030
- Authors: Muntean, George
- Date: 2019
- Subjects: Electronic funds transfers -- Security measures , Blockchains (Databases) Finance -- Technological innovations Technological innovations -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/41603 , vital:36544
- Description: Blockchain (also called distributed ledger technology), the technology that underpins cryptocurrencies, is resulting in a new era of openness, decentralisation and global inclusion (World Economic Forum, 2017). Blockchain technology is set to complement another emerging field or group of technologies which are collectively defined as the Fourth Industrial Revolution. This revolution is characterised by a “range of new technologies that are blending the physical, digital and biological worlds, impacting all disciplines, economies and industries, and even challenging ideas about what it means to be human” (World Economic Forum, 2017). Certain features of Blockchain technology namely; decentralisation, implied anonymity, transparency and immutability presents people with a technology that may well transform business models and indeed entire industries in the world and in South Africa. Some of these industries are explored further in this research, delving into ideas of how Blockchains may add value to them. This research effort approaches Blockchain technology from a future studies perspective, and assesses whether South Africa is ready to embrace the technology. The research also explores what South African stakeholders can do to be better prepared for expected disruptors and opportunities that the technology will bring. South Africa is seen as a developing nation in the global context and can well benefit from strategic use of emerging technologies such as Blockchain. This research effort will implement Inayatullah’s (2008) six pillars methodology, incorporating the various tools and methodologies within each pillar, in an effort to describe and present possible future scenarios for Blockchains in South Africa. This insight will be used to provide well thought out strategic recommendations for South Africa to prepare for adoption of Blockchain technologies, which could ultimately provide a competitive advantage for the country in the global marketplace.
- Full Text:
- Date Issued: 2019
- Authors: Muntean, George
- Date: 2019
- Subjects: Electronic funds transfers -- Security measures , Blockchains (Databases) Finance -- Technological innovations Technological innovations -- Economic aspects -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/41603 , vital:36544
- Description: Blockchain (also called distributed ledger technology), the technology that underpins cryptocurrencies, is resulting in a new era of openness, decentralisation and global inclusion (World Economic Forum, 2017). Blockchain technology is set to complement another emerging field or group of technologies which are collectively defined as the Fourth Industrial Revolution. This revolution is characterised by a “range of new technologies that are blending the physical, digital and biological worlds, impacting all disciplines, economies and industries, and even challenging ideas about what it means to be human” (World Economic Forum, 2017). Certain features of Blockchain technology namely; decentralisation, implied anonymity, transparency and immutability presents people with a technology that may well transform business models and indeed entire industries in the world and in South Africa. Some of these industries are explored further in this research, delving into ideas of how Blockchains may add value to them. This research effort approaches Blockchain technology from a future studies perspective, and assesses whether South Africa is ready to embrace the technology. The research also explores what South African stakeholders can do to be better prepared for expected disruptors and opportunities that the technology will bring. South Africa is seen as a developing nation in the global context and can well benefit from strategic use of emerging technologies such as Blockchain. This research effort will implement Inayatullah’s (2008) six pillars methodology, incorporating the various tools and methodologies within each pillar, in an effort to describe and present possible future scenarios for Blockchains in South Africa. This insight will be used to provide well thought out strategic recommendations for South Africa to prepare for adoption of Blockchain technologies, which could ultimately provide a competitive advantage for the country in the global marketplace.
- Full Text:
- Date Issued: 2019
An investigation of the Social and Structural basis for the emergence of social movements in Zimbabwe. A Comparative study of the Combined Harare Residents Association and Zimbabwe National Liberation War Veterans Association
- Authors: Chaitezvi, Trevour
- Date: 2019
- Subjects: Social movements
- Language: English
- Type: Thesis , Masters , MSoc. Sci (Sociology)
- Identifier: http://hdl.handle.net/10353/17564 , vital:41091
- Description: The emergence of urban social movements in the Zimbabwean context is mainly attributed to the political economic crisis, which resulted in the decline of municipal services and other socioeconomic rights central to the ordinary people. In the rural areas many scholars have alluded to the failure of the state to institute a radical transformation of the rural areas as the reason for the emergence of land movement and the subsequent land revolutions that followed in the early 2000s. Within this context, this study sought to investigate the social and structural basis for the emergence of social movements in Zimbabwe. The argument of this study hinges on the central premise of the political opportunity structure approach, which states that the emergence and success of social movements depends on certain political opportunities within the political environment. Building upon the guidance of the qualitative paradigm, whose method of investigation includes in-depth interviews and focus group discussions, the findings illustrate that the emergence of rural social movements in Zimbabwe was mainly to address the land question; such initiatives were to be done through fighting imperialism that hinges upon neo-liberal policies. In addition, one of the objectives for the emergence of rural social movements was to complete the objective of the liberation war, which was to give back the land to the indigenous black people. The tactics of the rural social movement included engaging the state and confronting it in other instances. Further, illegal land occupations were also one of the tactics of this movement. Ideologically, the movement used a Pan-African ideology to confront neo-colonization. On the other hand, the findings of the study illustrate that the emergence of urban social movements was mainly to provide a platform for the marginalized people to voice their discontent of the decline of service delivery in the urban context. Since most of these aspects were linked to the broader economic crisis facing the country, urban social movements also intended to initiate a political transition. The tactics of urban social movements included disruption, the establishment of networks with other social movements and the use of media, while constructing their ideology within the human rights framewo
- Full Text:
- Date Issued: 2019
- Authors: Chaitezvi, Trevour
- Date: 2019
- Subjects: Social movements
- Language: English
- Type: Thesis , Masters , MSoc. Sci (Sociology)
- Identifier: http://hdl.handle.net/10353/17564 , vital:41091
- Description: The emergence of urban social movements in the Zimbabwean context is mainly attributed to the political economic crisis, which resulted in the decline of municipal services and other socioeconomic rights central to the ordinary people. In the rural areas many scholars have alluded to the failure of the state to institute a radical transformation of the rural areas as the reason for the emergence of land movement and the subsequent land revolutions that followed in the early 2000s. Within this context, this study sought to investigate the social and structural basis for the emergence of social movements in Zimbabwe. The argument of this study hinges on the central premise of the political opportunity structure approach, which states that the emergence and success of social movements depends on certain political opportunities within the political environment. Building upon the guidance of the qualitative paradigm, whose method of investigation includes in-depth interviews and focus group discussions, the findings illustrate that the emergence of rural social movements in Zimbabwe was mainly to address the land question; such initiatives were to be done through fighting imperialism that hinges upon neo-liberal policies. In addition, one of the objectives for the emergence of rural social movements was to complete the objective of the liberation war, which was to give back the land to the indigenous black people. The tactics of the rural social movement included engaging the state and confronting it in other instances. Further, illegal land occupations were also one of the tactics of this movement. Ideologically, the movement used a Pan-African ideology to confront neo-colonization. On the other hand, the findings of the study illustrate that the emergence of urban social movements was mainly to provide a platform for the marginalized people to voice their discontent of the decline of service delivery in the urban context. Since most of these aspects were linked to the broader economic crisis facing the country, urban social movements also intended to initiate a political transition. The tactics of urban social movements included disruption, the establishment of networks with other social movements and the use of media, while constructing their ideology within the human rights framewo
- Full Text:
- Date Issued: 2019
The influence of briefing on Eastern Cape government project outcomes
- Authors: Binqela, Lukhanyo
- Date: 2019
- Subjects: Government projects -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/44562 , vital:38128
- Description: South African Government projects are frequently completed with large cost overruns, extended schedules, quality concerns and an increase in emerging contractors making a significant loss in projects they undertake. The construction phase has been the focus of many studies on the causes of unfavourable project outcomes. However, the crucial stages in the construction process that influence the success of a project are the early ones. This is where major decisions that influence the features and form of a project occur. This study, which adopts a case study approach, aims to establish the influence of the brief development process on the outcome of Government projects in the Eastern Cape. Through the reviewed literature and primary data collection, the study aimed at establishing the influence of the brief that is utilised for a need analysis, to define a detailed scope of works, stakeholder engagement and the time management on Eastern Cape Government project outcomes. The Sarah Baartman district was the selected geographical scope of research. Five projects were selected; these included three schools, one emergency medical service facility and one office facility. The study revealed that Eastern Cape Government projects brief development is based on the client department 2013 Published Norms and Standards for state buildings and a need analysis for other stakeholders is not considered. The study further revealed that there is no stakeholder management in government projects; therefore, there is no stakeholder engagement plan during the brief development. The study further revealed that government time management is suboptimal because stakeholder needs are not realised. The research also found that Eastern Cape Government projects do not achieve stakeholder satisfaction and are delivered late. However, some Government projects are able to meet the desired quality and are within budget. The study thus proposes that the Eastern Cape Government projects need to adopt the dynamic brief development process and implement stakeholder management. The brief development process should be an ongoing process extending throughout the project life cycle responding in an innovative manner to emerging stakeholder requirements.
- Full Text:
- Date Issued: 2019
- Authors: Binqela, Lukhanyo
- Date: 2019
- Subjects: Government projects -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/44562 , vital:38128
- Description: South African Government projects are frequently completed with large cost overruns, extended schedules, quality concerns and an increase in emerging contractors making a significant loss in projects they undertake. The construction phase has been the focus of many studies on the causes of unfavourable project outcomes. However, the crucial stages in the construction process that influence the success of a project are the early ones. This is where major decisions that influence the features and form of a project occur. This study, which adopts a case study approach, aims to establish the influence of the brief development process on the outcome of Government projects in the Eastern Cape. Through the reviewed literature and primary data collection, the study aimed at establishing the influence of the brief that is utilised for a need analysis, to define a detailed scope of works, stakeholder engagement and the time management on Eastern Cape Government project outcomes. The Sarah Baartman district was the selected geographical scope of research. Five projects were selected; these included three schools, one emergency medical service facility and one office facility. The study revealed that Eastern Cape Government projects brief development is based on the client department 2013 Published Norms and Standards for state buildings and a need analysis for other stakeholders is not considered. The study further revealed that there is no stakeholder management in government projects; therefore, there is no stakeholder engagement plan during the brief development. The study further revealed that government time management is suboptimal because stakeholder needs are not realised. The research also found that Eastern Cape Government projects do not achieve stakeholder satisfaction and are delivered late. However, some Government projects are able to meet the desired quality and are within budget. The study thus proposes that the Eastern Cape Government projects need to adopt the dynamic brief development process and implement stakeholder management. The brief development process should be an ongoing process extending throughout the project life cycle responding in an innovative manner to emerging stakeholder requirements.
- Full Text:
- Date Issued: 2019
An anthropological investigation of the perception of blood donation amongst university students: the case of students at the Nelson Mandela University
- Authors: Boukes, Zinzan Sebastian
- Date: 2019
- Subjects: Blood donors -- South Africa -- Port Elizabeth , Blood -- Collection and preservation -- South Africa -- Port Elizabeth College students -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/30887 , vital:31195
- Description: The importance of voluntary non-remunerated blood donation is emphasised by the WHO, who envision a world with a sustainable blood supply where at least one percent of the population of every country voluntarily give blood. To ensure an adequate supply, the South African National Blood Service collects around three-thousand units of blood per day – forty percent of this from high school pupils and university students, following WHO recommendations regarding this segment as a target donor population. Despite the contribution by this segment of the population, no published knowledge exists of the perception of blood donation amongst university students in the country. This is an issue as the WHO (2010) recommends that countries understand what their populations know, think, and do regarding blood donation. In response to this issue this study investigated the perception of blood donation amongst students at a South African university (the Nelson Mandela University) to develop an understanding of what students know, think and do regarding blood donation. The study was conducted between 2017 and 2018 at a campus (‘South Campus’) of the Nelson Mandela University, Port Elizabeth. The study followed a qualitative approach, applying a thematic analysis. Data was collected through semi-structured person-to-person interviews among a sample of students (n=20) from different departments and disciplines.
- Full Text:
- Date Issued: 2019
- Authors: Boukes, Zinzan Sebastian
- Date: 2019
- Subjects: Blood donors -- South Africa -- Port Elizabeth , Blood -- Collection and preservation -- South Africa -- Port Elizabeth College students -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/30887 , vital:31195
- Description: The importance of voluntary non-remunerated blood donation is emphasised by the WHO, who envision a world with a sustainable blood supply where at least one percent of the population of every country voluntarily give blood. To ensure an adequate supply, the South African National Blood Service collects around three-thousand units of blood per day – forty percent of this from high school pupils and university students, following WHO recommendations regarding this segment as a target donor population. Despite the contribution by this segment of the population, no published knowledge exists of the perception of blood donation amongst university students in the country. This is an issue as the WHO (2010) recommends that countries understand what their populations know, think, and do regarding blood donation. In response to this issue this study investigated the perception of blood donation amongst students at a South African university (the Nelson Mandela University) to develop an understanding of what students know, think and do regarding blood donation. The study was conducted between 2017 and 2018 at a campus (‘South Campus’) of the Nelson Mandela University, Port Elizabeth. The study followed a qualitative approach, applying a thematic analysis. Data was collected through semi-structured person-to-person interviews among a sample of students (n=20) from different departments and disciplines.
- Full Text:
- Date Issued: 2019
Customer loyalty programmes in the South African grocery and retail sector
- Authors: Harmse, Nyree
- Date: 2019
- Subjects: Customer loyalty programs -- South Africa , Customer clubs -- South Africa Grocery trade -- South Africa Food industry and trade -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/39599 , vital:35331
- Description: While there has been substantial research on loyalty programmes, few studies specifically focus on the attitudinal and behavioural components of a loyalty programmes within grocery and retail sector programmes in South Africa. This study is part of a broader study of South African loyalty programmes, but specifically examines the attitudinal and behavioural influences on loyalty programmes in the South African grocery and retail sector. A comprehensive literature review was conducted and factors influencing loyalty programmes were identified. The literature reviewed informed the conceptual model that proposed purchasing behaviour, trust, communication, personalisation, flexibility, rewards and method of participation influenced the success of grocery and retail sector loyalty programmes with attitude and behaviour serving as intermediate variables. The academic literature selected for the study is grounded in the academic theories of social exchange and planned behaviour. The methodology followed was through self-administered questionnaires developed from academic literature. Data were collected from 1090 respondents across South Africa, of which 643 respondents were members of grocery and retail sector loyalty programmes. The data analysis conducted through various descriptive and inferential statistical tests and exploratory factors analysis identified that factors of purchasing behaviour, trust, communication, personalisation, flexibility, rewards and general assessment were factors influencing loyalty programmes. Loyalty programme studies in South Africa are generally conducted on specific loyalty programmes, which are owned by the programme owners and therefore unpublished. This study contributes to the body of knowledge by using academic theory to establish the attitudinal and behavioural factors that affect loyalty programmes within the South African grocery and retail sector. The study concludes with managerial recommendations that grocery and retail sector managers can implement to influence the success of loyalty programmes. Some of the recommendations include the use of communication as a lever to influence other factors and the overall effectiveness of the programme. Other recommendations include data management and rewards that create flexible and personalised experiences.
- Full Text:
- Date Issued: 2019
- Authors: Harmse, Nyree
- Date: 2019
- Subjects: Customer loyalty programs -- South Africa , Customer clubs -- South Africa Grocery trade -- South Africa Food industry and trade -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10948/39599 , vital:35331
- Description: While there has been substantial research on loyalty programmes, few studies specifically focus on the attitudinal and behavioural components of a loyalty programmes within grocery and retail sector programmes in South Africa. This study is part of a broader study of South African loyalty programmes, but specifically examines the attitudinal and behavioural influences on loyalty programmes in the South African grocery and retail sector. A comprehensive literature review was conducted and factors influencing loyalty programmes were identified. The literature reviewed informed the conceptual model that proposed purchasing behaviour, trust, communication, personalisation, flexibility, rewards and method of participation influenced the success of grocery and retail sector loyalty programmes with attitude and behaviour serving as intermediate variables. The academic literature selected for the study is grounded in the academic theories of social exchange and planned behaviour. The methodology followed was through self-administered questionnaires developed from academic literature. Data were collected from 1090 respondents across South Africa, of which 643 respondents were members of grocery and retail sector loyalty programmes. The data analysis conducted through various descriptive and inferential statistical tests and exploratory factors analysis identified that factors of purchasing behaviour, trust, communication, personalisation, flexibility, rewards and general assessment were factors influencing loyalty programmes. Loyalty programme studies in South Africa are generally conducted on specific loyalty programmes, which are owned by the programme owners and therefore unpublished. This study contributes to the body of knowledge by using academic theory to establish the attitudinal and behavioural factors that affect loyalty programmes within the South African grocery and retail sector. The study concludes with managerial recommendations that grocery and retail sector managers can implement to influence the success of loyalty programmes. Some of the recommendations include the use of communication as a lever to influence other factors and the overall effectiveness of the programme. Other recommendations include data management and rewards that create flexible and personalised experiences.
- Full Text:
- Date Issued: 2019
The Effects of Municipal Amalgamations on Organisational Culture: A Case-Study of Raymond Mhlaba Local Municipality in Eastern Cape Province.
- Authors: Ndlela, Likhaya Hlubikazi
- Date: 2019
- Subjects: Corporate culture Organizational change
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/13848 , vital:39717
- Description: In the study, the researcher assessed the effects of amalgamations on organisational culture in the Raymond Mhlaba Local Municipality in Eastern Cape Province. The study examined whether the current organisational structure is conducive to a sound working environment, analysed change management interventions provided after the amalgamation and made recommendations to the local municipality on the measures to be taken to provide quality service delivery, improved communication networks and challenges that affect organisational culture. The entire research process was guided by the above research objectives and questions that strive to assess the outcomes of the effects of an amalgamation on organisational culture in Raymond Mhlaba. The study involved a qualitative research approach, and interviews were conducted for the administrative employees of the municipality. The findings of the study identified that the municipal amalgamation has negative effects on organisational culture, especially at the beginning of the amalgamation. The study established that there are many factors that led to the negative effect of an amalgamation on organisational culture, such as lack of management communication, consultation and planning strategies, preferential treatment, conflict and confusion, service delivery and failure to provide change management interventions. The study also revealed that the amalgamation came with better opportunities in terms of salary scales as the municipality is be more capacitated. These factors can be prevented to ensure the success of amalgamations in Local Government. Finally, the study makes recommendations for the municipality on how 10 to handle the amalgamation better, to result to a positive effect on organisational culture.
- Full Text:
- Date Issued: 2019
- Authors: Ndlela, Likhaya Hlubikazi
- Date: 2019
- Subjects: Corporate culture Organizational change
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: http://hdl.handle.net/10353/13848 , vital:39717
- Description: In the study, the researcher assessed the effects of amalgamations on organisational culture in the Raymond Mhlaba Local Municipality in Eastern Cape Province. The study examined whether the current organisational structure is conducive to a sound working environment, analysed change management interventions provided after the amalgamation and made recommendations to the local municipality on the measures to be taken to provide quality service delivery, improved communication networks and challenges that affect organisational culture. The entire research process was guided by the above research objectives and questions that strive to assess the outcomes of the effects of an amalgamation on organisational culture in Raymond Mhlaba. The study involved a qualitative research approach, and interviews were conducted for the administrative employees of the municipality. The findings of the study identified that the municipal amalgamation has negative effects on organisational culture, especially at the beginning of the amalgamation. The study established that there are many factors that led to the negative effect of an amalgamation on organisational culture, such as lack of management communication, consultation and planning strategies, preferential treatment, conflict and confusion, service delivery and failure to provide change management interventions. The study also revealed that the amalgamation came with better opportunities in terms of salary scales as the municipality is be more capacitated. These factors can be prevented to ensure the success of amalgamations in Local Government. Finally, the study makes recommendations for the municipality on how 10 to handle the amalgamation better, to result to a positive effect on organisational culture.
- Full Text:
- Date Issued: 2019
Categorising Network Telescope data using big data enrichment techniques
- Authors: Davis, Michael Reginald
- Date: 2019
- Subjects: Denial of service attacks , Big data , Computer networks -- Security measures
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/92941 , vital:30766
- Description: Network Telescopes, Internet backbone sampling, IDS and other forms of network-sourced Threat Intelligence provide researchers with insight into the methods and intent of remote entities by capturing network traffic and analysing the resulting data. This analysis and determination of intent is made difficult by the large amounts of potentially malicious traffic, coupled with limited amount of knowledge that can be attributed to the source of the incoming data, as the source is known only by its IP address. Due to the lack of commonly available tooling, many researchers start this analysis from the beginning and so repeat and re-iterate previous research as the bulk of their work. As a result new insight into methods and approaches of analysis is gained at a high cost. Our research approaches this problem by using additional knowledge about the source IP address such as open ports, reverse and forward DNS, BGP routing tables and more, to enhance the researcher's ability to understand the traffic source. The research is a BigData experiment, where large (hundreds of GB) datasets are merged with a two month section of Network Telescope data using a set of Python scripts. The result are written to a Google BigQuery database table. Analysis of the network data is greatly simplified, with questions about the nature of the source, such as its device class (home routing device or server), potential vulnerabilities (open telnet ports or databases) and location becoming relatively easy to answer. Using this approach, researchers can focus on the questions that need answering and efficiently address them. This research could be taken further by using additional data sources such as Geo-location, WHOIS lookups, Threat Intelligence feeds and many others. Other potential areas of research include real-time categorisation of incoming packets, in order to better inform alerting and reporting systems' configuration. In conclusion, categorising Network Telescope data in this way provides insight into the intent of the (apparent) originator and as such is a valuable tool for those seeking to understand the purpose and intent of arriving packets. In particular, the ability to remove packets categorised as non-malicious (e.g. those in the Research category) from the data eliminates a known source of `noise' from the data. This allows the researcher to focus their efforts in a more productive manner.
- Full Text:
- Date Issued: 2019
- Authors: Davis, Michael Reginald
- Date: 2019
- Subjects: Denial of service attacks , Big data , Computer networks -- Security measures
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/92941 , vital:30766
- Description: Network Telescopes, Internet backbone sampling, IDS and other forms of network-sourced Threat Intelligence provide researchers with insight into the methods and intent of remote entities by capturing network traffic and analysing the resulting data. This analysis and determination of intent is made difficult by the large amounts of potentially malicious traffic, coupled with limited amount of knowledge that can be attributed to the source of the incoming data, as the source is known only by its IP address. Due to the lack of commonly available tooling, many researchers start this analysis from the beginning and so repeat and re-iterate previous research as the bulk of their work. As a result new insight into methods and approaches of analysis is gained at a high cost. Our research approaches this problem by using additional knowledge about the source IP address such as open ports, reverse and forward DNS, BGP routing tables and more, to enhance the researcher's ability to understand the traffic source. The research is a BigData experiment, where large (hundreds of GB) datasets are merged with a two month section of Network Telescope data using a set of Python scripts. The result are written to a Google BigQuery database table. Analysis of the network data is greatly simplified, with questions about the nature of the source, such as its device class (home routing device or server), potential vulnerabilities (open telnet ports or databases) and location becoming relatively easy to answer. Using this approach, researchers can focus on the questions that need answering and efficiently address them. This research could be taken further by using additional data sources such as Geo-location, WHOIS lookups, Threat Intelligence feeds and many others. Other potential areas of research include real-time categorisation of incoming packets, in order to better inform alerting and reporting systems' configuration. In conclusion, categorising Network Telescope data in this way provides insight into the intent of the (apparent) originator and as such is a valuable tool for those seeking to understand the purpose and intent of arriving packets. In particular, the ability to remove packets categorised as non-malicious (e.g. those in the Research category) from the data eliminates a known source of `noise' from the data. This allows the researcher to focus their efforts in a more productive manner.
- Full Text:
- Date Issued: 2019