The effect of alginate supplementation on the growth, feed utilization, digestive enzyme activity levels, and intestinal morphology of juvenile South African abalone (Haliotis midae) fed formulated feeds
- Authors: Tlakedi, Thato
- Date: 2020
- Subjects: Abalones -- Feeding and feeds -- South Africa , Haliotis midae , Abalones -- Digestive organs , Abalones -- Morphology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/145279 , vital:38424
- Description: Alginate occurs abundantly in kelp and while a few studies have quantified the effect of kelp inclusion in formulated Haliotis midae feeds, none have researched the effect of alginate inclusion on the growth of abalone fed this feed. Feeding kelp to cultured abalone affects gut structure and modulates gut bacteria, aiding digestion by upregulating enzyme activity. This farm-based experiment compared the growth, feed utilization, digestive enzyme activity levels and intestinal villi structure between abalone (1-year-old, 10 - 20 mm shell length) fed kelp-supplemented (BK) or alginate-supplemented (BA) diets and abalone fed basal (B) and fresh kelp (K) diets for a period of eight months from June 2017 to February 2018. Growth and enzyme activities were also compared between abalone that experienced dietary changes and abalone that remained on their initial diets. The tested diets were: base diet (B, 34% protein), the same base diet supplemented with fresh minced kelp (0.90% kelp [dry mass, equivalent to 0.20% alginate]; BK), base diet supplemented with sodium alginate (0.20% alginate; BA) and a fresh kelp diet (K). Alginate or kelp inclusion in a formulated feed had no significant effect on the specific growth rates (SGR), linear shell growth rates (LGR), daily percentage feeding rates (PFR), feed conversion ratio (FCR), percentage mass gain (MG) and condition factor (CF) over the eight month trial period, compared to abalone fed the base diet. In October 2017, four months since the start of the trial in June, all the groups fed formulated feeds showed significantly higher average weight gain (8.42 ± 0.72 g to 8.86 ± 0.63 g) compared to the kelp-fed group (6.68 ± 0.43 g). However, no significant differences in the average weight gain were observed between abalone fed kelp and formulated feeds at the end of this study. Furthermore, there were no significant differences in the FCR and PFR between abalone fed the base or alginate diets and abalone fed the fresh kelp diet. However, the SW diet produced significantly lower FCR (1.00 ± 0.13) and PFR (0.78 ± 0.10%) compared to the kelp diet (10.6 ± 1.40% and 8.12 ± 1.01%, respectively). All formulated diets produced non-significant LGR, MG and CF compared to the kelp diet at the end of this study. Enzyme activity levels were compared between abalone fed the test diets in July and August 2017 and February 2018. There were no significant differences in the average alginate lyase specific activity levels between abalone fed formulated diets in July and August 2017. At the end of the trial, however, the alginate diet induced significantly higher alginate lyase specific activity levels (4.89 ± 1.64 mg.mg-1 protein) compared to the base diet (1.57 ± 0.98 mg.mg-1 protein), but showed no significant differences compared to the SW (3.78 ± 0.41 mg.mg-1 protein) and fresh kelp-only diets (4.00 ± 0.62 mg.mg-1 protein). The SW diet showed no significant differences in the alginate lyase specific activity levels compared to the base diet. There were no significant differences in the chymotrypsin activity levels between the test diets throughout this study. Alginate or kelp inclusion also had no significant effect on the intestinal structure compared to the base or fresh kelp diets. This was despite a higher degree of variability in microvilli height and width being observed in abalone fed the kelp-only diet, with microvilli visibly wider and longer than in abalone fed formulated feeds. Switching abalone between some diets significantly affected the average weight gain, MG, FCR and PFR, alginate lyase, chymotrypsin and cellulase activity levels compared to abalone kept on their initial diets. The inclusion levels of kelp and alginate used in this study were likely too low to affect abalone growth as higher inclusion levels, particularly of alginate, have been found to improve fish growth. This study concluded that minced kelp and alginate inclusion in a formulated H. midae diet did not affect the SGR, FCR and intestinal morphology, but significantly affected alginate lyase and chymotrypsin activity levels. Furthermore, changes in growth and digestive enzyme activity levels coincided with dietary changes. Consequently, higher inclusion levels, particularly of sodium alginate, and the effect of dietary changes on abalone growth and digestive enzymes must be investigated in future studies.
- Full Text:
- Authors: Tlakedi, Thato
- Date: 2020
- Subjects: Abalones -- Feeding and feeds -- South Africa , Haliotis midae , Abalones -- Digestive organs , Abalones -- Morphology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/145279 , vital:38424
- Description: Alginate occurs abundantly in kelp and while a few studies have quantified the effect of kelp inclusion in formulated Haliotis midae feeds, none have researched the effect of alginate inclusion on the growth of abalone fed this feed. Feeding kelp to cultured abalone affects gut structure and modulates gut bacteria, aiding digestion by upregulating enzyme activity. This farm-based experiment compared the growth, feed utilization, digestive enzyme activity levels and intestinal villi structure between abalone (1-year-old, 10 - 20 mm shell length) fed kelp-supplemented (BK) or alginate-supplemented (BA) diets and abalone fed basal (B) and fresh kelp (K) diets for a period of eight months from June 2017 to February 2018. Growth and enzyme activities were also compared between abalone that experienced dietary changes and abalone that remained on their initial diets. The tested diets were: base diet (B, 34% protein), the same base diet supplemented with fresh minced kelp (0.90% kelp [dry mass, equivalent to 0.20% alginate]; BK), base diet supplemented with sodium alginate (0.20% alginate; BA) and a fresh kelp diet (K). Alginate or kelp inclusion in a formulated feed had no significant effect on the specific growth rates (SGR), linear shell growth rates (LGR), daily percentage feeding rates (PFR), feed conversion ratio (FCR), percentage mass gain (MG) and condition factor (CF) over the eight month trial period, compared to abalone fed the base diet. In October 2017, four months since the start of the trial in June, all the groups fed formulated feeds showed significantly higher average weight gain (8.42 ± 0.72 g to 8.86 ± 0.63 g) compared to the kelp-fed group (6.68 ± 0.43 g). However, no significant differences in the average weight gain were observed between abalone fed kelp and formulated feeds at the end of this study. Furthermore, there were no significant differences in the FCR and PFR between abalone fed the base or alginate diets and abalone fed the fresh kelp diet. However, the SW diet produced significantly lower FCR (1.00 ± 0.13) and PFR (0.78 ± 0.10%) compared to the kelp diet (10.6 ± 1.40% and 8.12 ± 1.01%, respectively). All formulated diets produced non-significant LGR, MG and CF compared to the kelp diet at the end of this study. Enzyme activity levels were compared between abalone fed the test diets in July and August 2017 and February 2018. There were no significant differences in the average alginate lyase specific activity levels between abalone fed formulated diets in July and August 2017. At the end of the trial, however, the alginate diet induced significantly higher alginate lyase specific activity levels (4.89 ± 1.64 mg.mg-1 protein) compared to the base diet (1.57 ± 0.98 mg.mg-1 protein), but showed no significant differences compared to the SW (3.78 ± 0.41 mg.mg-1 protein) and fresh kelp-only diets (4.00 ± 0.62 mg.mg-1 protein). The SW diet showed no significant differences in the alginate lyase specific activity levels compared to the base diet. There were no significant differences in the chymotrypsin activity levels between the test diets throughout this study. Alginate or kelp inclusion also had no significant effect on the intestinal structure compared to the base or fresh kelp diets. This was despite a higher degree of variability in microvilli height and width being observed in abalone fed the kelp-only diet, with microvilli visibly wider and longer than in abalone fed formulated feeds. Switching abalone between some diets significantly affected the average weight gain, MG, FCR and PFR, alginate lyase, chymotrypsin and cellulase activity levels compared to abalone kept on their initial diets. The inclusion levels of kelp and alginate used in this study were likely too low to affect abalone growth as higher inclusion levels, particularly of alginate, have been found to improve fish growth. This study concluded that minced kelp and alginate inclusion in a formulated H. midae diet did not affect the SGR, FCR and intestinal morphology, but significantly affected alginate lyase and chymotrypsin activity levels. Furthermore, changes in growth and digestive enzyme activity levels coincided with dietary changes. Consequently, higher inclusion levels, particularly of sodium alginate, and the effect of dietary changes on abalone growth and digestive enzymes must be investigated in future studies.
- Full Text:
The effect of company brand on the investment decisions of individual investors as mediated by behavioural finance biases in Nigeria
- Authors: Okeja, Ogechukwu Donatu
- Date: 2020
- Subjects: Branding (Marketing) -- Nigeria , Business names -- Nigeria , Brand choice -- Nigeria -- Mathematical models , Consumer behavior -- Nigeria -- Mathematical models , Consumers' preferences -- Nigeria , Nigerian Stock Exchange
- Language: English
- Type: text , Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/144015 , vital:38303
- Description: Over the years, the financial sphere and its systematic process has transcended from one paradigm to another. Most prominent is the traditional finance paradigm dominating the financial sphere majorly throughout the 1960s and 1970s. The ideology and the foundation of the traditional finance paradigm was centred on the concept of rationality. Within the context of the current research, the traditional finance paradigm postulates that individuals in the process of making investment decisions, acquire and analyse all available information in the stock markets, upon which they make a rational investment decision. In other words, the traditional finance paradigm portrays individuals as perfectly informed, rational decision makers, capable of objectively solving complex problems –Homo economicus. However, research in the field of psychology gave rise to the questions and concerns that started to emerge in the 1980s concerning the realistic nature of the assumptions of the traditional finance paradigm. As opposed to the assumptions of traditional finance, these research show that it is impossible for investors to analyse the shares of all the listed companies in the market in order to make rational investment decisions due to the ambiguous nature of information available. In the behavioural finance paradigm individuals’ decision making are viewed to incorporate factors such as emotions, heuristics, experiences, intuition and perceptions. These factors in turn are seen to induce biases (such as availability bias and overconfidence) which leads to subjective decision making. The concept of behavioural finance is based on realistic outcomes of events in the financial sphere for example, the repeated occurrence of financial crises in an environment where all participants are assumed to be rational. The behavioural finance paradigm challenges the assumption of the traditional finance paradigm which is embedded on the concept of rationality. The purpose of the present research is to investigate whether brands of listed companies on the Nigerian Stock Exchange trigger behavioural finance biases in investment decisions of individual investors in Nigeria. More specifically, the aim of the present research was to establish relationships between the independent sub-variables of brand knowledge (brand awareness and brand image) and brand relationship (brand loyalty and brand attachment), the mediating sub-variables of behavioural finance biases (availability bias and overconfidence) and the dependent variable (investment decisions). To this end, objectives and hypotheses were formulated to guide the research. In order to achieve the stated objectives and test the formulated hypotheses, the present research adopted the positivistic paradigm and the methodological process involved quantitative methods. Data was acquired by means of an online questionnaire from members of the Independent shareholders association of Nigeria and individual investors whose contacts were provided by an independent broker (n= 182). The research instrument showed satisfactory levels of validity on all measures (between 0.40 and 0.89) and a relatively highly internal consistency for reliability with Cronbach’s alpha coefficient scores of between 0.81 and 0.93. Descriptive and inferential statistical analyses were performed. Descriptive statistics involved frequency distribution, mean and standard deviation. Inferential statistics involved Spearman’s rank correlation coefficient, Multiple linear regression analyses, T-test and ANOVA. Using Spearman’s rank correlation coefficient, results show that all variables were positively correlated. Results of the Multiple linear regression analyses performed, indicated that there are positive relationships between brand awareness and investment decisions; brand awareness and availability bias; brand loyalty and investment decisions; brand loyalty and overconfidence; overconfidence and investment decisions. Furthermore, Multiple linear regression analyses also indicated that availability bias mediates the relationship between brand awareness and investment decisions; and overconfidence mediates the relationship between brand loyalty and investment decisions. Results of the T-test indicated that there is no significant mean difference found in the responses of the different sex group (male and female) on independent, mediating and dependent variables. While ANOVA indicated that there is a significant difference found between the age category of respondents and brand loyalty; age category of respondents and investment decisions. Based on the results of the analyses performed, conclusions, contributions and recommendations were enumerated. Practical recommendations were made to the government, individual investors, companies and brand experts, professional brokers, financial analysts and economy developers.
- Full Text:
- Authors: Okeja, Ogechukwu Donatu
- Date: 2020
- Subjects: Branding (Marketing) -- Nigeria , Business names -- Nigeria , Brand choice -- Nigeria -- Mathematical models , Consumer behavior -- Nigeria -- Mathematical models , Consumers' preferences -- Nigeria , Nigerian Stock Exchange
- Language: English
- Type: text , Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/144015 , vital:38303
- Description: Over the years, the financial sphere and its systematic process has transcended from one paradigm to another. Most prominent is the traditional finance paradigm dominating the financial sphere majorly throughout the 1960s and 1970s. The ideology and the foundation of the traditional finance paradigm was centred on the concept of rationality. Within the context of the current research, the traditional finance paradigm postulates that individuals in the process of making investment decisions, acquire and analyse all available information in the stock markets, upon which they make a rational investment decision. In other words, the traditional finance paradigm portrays individuals as perfectly informed, rational decision makers, capable of objectively solving complex problems –Homo economicus. However, research in the field of psychology gave rise to the questions and concerns that started to emerge in the 1980s concerning the realistic nature of the assumptions of the traditional finance paradigm. As opposed to the assumptions of traditional finance, these research show that it is impossible for investors to analyse the shares of all the listed companies in the market in order to make rational investment decisions due to the ambiguous nature of information available. In the behavioural finance paradigm individuals’ decision making are viewed to incorporate factors such as emotions, heuristics, experiences, intuition and perceptions. These factors in turn are seen to induce biases (such as availability bias and overconfidence) which leads to subjective decision making. The concept of behavioural finance is based on realistic outcomes of events in the financial sphere for example, the repeated occurrence of financial crises in an environment where all participants are assumed to be rational. The behavioural finance paradigm challenges the assumption of the traditional finance paradigm which is embedded on the concept of rationality. The purpose of the present research is to investigate whether brands of listed companies on the Nigerian Stock Exchange trigger behavioural finance biases in investment decisions of individual investors in Nigeria. More specifically, the aim of the present research was to establish relationships between the independent sub-variables of brand knowledge (brand awareness and brand image) and brand relationship (brand loyalty and brand attachment), the mediating sub-variables of behavioural finance biases (availability bias and overconfidence) and the dependent variable (investment decisions). To this end, objectives and hypotheses were formulated to guide the research. In order to achieve the stated objectives and test the formulated hypotheses, the present research adopted the positivistic paradigm and the methodological process involved quantitative methods. Data was acquired by means of an online questionnaire from members of the Independent shareholders association of Nigeria and individual investors whose contacts were provided by an independent broker (n= 182). The research instrument showed satisfactory levels of validity on all measures (between 0.40 and 0.89) and a relatively highly internal consistency for reliability with Cronbach’s alpha coefficient scores of between 0.81 and 0.93. Descriptive and inferential statistical analyses were performed. Descriptive statistics involved frequency distribution, mean and standard deviation. Inferential statistics involved Spearman’s rank correlation coefficient, Multiple linear regression analyses, T-test and ANOVA. Using Spearman’s rank correlation coefficient, results show that all variables were positively correlated. Results of the Multiple linear regression analyses performed, indicated that there are positive relationships between brand awareness and investment decisions; brand awareness and availability bias; brand loyalty and investment decisions; brand loyalty and overconfidence; overconfidence and investment decisions. Furthermore, Multiple linear regression analyses also indicated that availability bias mediates the relationship between brand awareness and investment decisions; and overconfidence mediates the relationship between brand loyalty and investment decisions. Results of the T-test indicated that there is no significant mean difference found in the responses of the different sex group (male and female) on independent, mediating and dependent variables. While ANOVA indicated that there is a significant difference found between the age category of respondents and brand loyalty; age category of respondents and investment decisions. Based on the results of the analyses performed, conclusions, contributions and recommendations were enumerated. Practical recommendations were made to the government, individual investors, companies and brand experts, professional brokers, financial analysts and economy developers.
- Full Text:
The effect of technology acceptance model and trust on online banking in Zambia
- Authors: Hamusone, Collins Moonga
- Date: 2020
- Subjects: Internet banking -- Zambia , Banks and banking -- Computer networks -- Zambia , Banks and banking -- Information technology -- Zambia , Banks and banking -- Technological innovations -- Zambia , Consumer behavior -- Zambia
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/163637 , vital:41063
- Description: The banking industry has been influenced by the evolution of technology and in the process , reduced the cost of transacting and increased the speed of service delivery. This global change has been driven by the development of alternative banking channels from the traditional brick and mortar walls to a utomated teller machines , phone - banking, and now the most recent phenomenon, online banking . The current study, conducted in Lusaka, Zambia investigated the adoption of online banking technology using the Technology Acceptance Model (TAM) with perceived ea se of use, perceived usefulness and trust. T he two constructs perceived ea se of use, perceived usefulness are known to be the most accurate subjective measurement scales for predicting user acceptance . T echnology Acceptance Model (TAM) is the most widely used model and theorizes that if a user fi nds the technology useful , it will influence the user’s attitude positively, thereby increasing the intention to use and finally allowing for adoption. In a cross - sectional survey of 478 participants, and using logistic regression, this study found that perceived usefulness , perceived ease of use and trust were positively associated with users’ intentions to adopt online banking , and these relationships were statistically significant. The findings from this study provide support for the theoretical model. The study further found no contradicting results, and this provides banks in Zambia with an opportunity to grow online banking as the consumer behaviour indicates a willingness and int ention to adopt the technology. The current study was limited to the urban areas of Lusaka which had a population of 3.2 million . Future research may also investigate the impact of culture on the adopti on of online banking technology .
- Full Text:
- Authors: Hamusone, Collins Moonga
- Date: 2020
- Subjects: Internet banking -- Zambia , Banks and banking -- Computer networks -- Zambia , Banks and banking -- Information technology -- Zambia , Banks and banking -- Technological innovations -- Zambia , Consumer behavior -- Zambia
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/163637 , vital:41063
- Description: The banking industry has been influenced by the evolution of technology and in the process , reduced the cost of transacting and increased the speed of service delivery. This global change has been driven by the development of alternative banking channels from the traditional brick and mortar walls to a utomated teller machines , phone - banking, and now the most recent phenomenon, online banking . The current study, conducted in Lusaka, Zambia investigated the adoption of online banking technology using the Technology Acceptance Model (TAM) with perceived ea se of use, perceived usefulness and trust. T he two constructs perceived ea se of use, perceived usefulness are known to be the most accurate subjective measurement scales for predicting user acceptance . T echnology Acceptance Model (TAM) is the most widely used model and theorizes that if a user fi nds the technology useful , it will influence the user’s attitude positively, thereby increasing the intention to use and finally allowing for adoption. In a cross - sectional survey of 478 participants, and using logistic regression, this study found that perceived usefulness , perceived ease of use and trust were positively associated with users’ intentions to adopt online banking , and these relationships were statistically significant. The findings from this study provide support for the theoretical model. The study further found no contradicting results, and this provides banks in Zambia with an opportunity to grow online banking as the consumer behaviour indicates a willingness and int ention to adopt the technology. The current study was limited to the urban areas of Lusaka which had a population of 3.2 million . Future research may also investigate the impact of culture on the adopti on of online banking technology .
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The Effects of Alkaline Pretreatment on Agricultural Biomasses (Corn Cob and Sweet Sorghum Bagasse) and Their Hydrolysis by a Termite-Derived Enzyme Cocktail:
- Mafa, Mpho S, Malgas, Samkelo, Bhattacharya, Abhishek, Rashamuse, Konanani, Pletschke, Brett I
- Authors: Mafa, Mpho S , Malgas, Samkelo , Bhattacharya, Abhishek , Rashamuse, Konanani , Pletschke, Brett I
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160273 , vital:40430 , https://doi.org/10.3390/agronomy10081211
- Description: Sweet sorghum bagasse (SSB) and corncob (CC) have been identified as promising feedstocks for the production of second-generation biofuels and other value-added chemicals. In this study, lime (Ca(OH)2) and NaOH pretreatment efficacy for decreasing recalcitrance from SSB and CC was investigated, and subsequently, the pretreated biomass was subjected to the hydrolytic action of an in-house formulated holocellulolytic enzyme cocktail (HEC-H). Compositional analysis revealed that SSB contained 29.34% lignin, 17.75% cellulose and 16.28% hemicellulose, while CC consisted of 22.51% lignin, 23.58% cellulose and 33.34% hemicellulose. Alkaline pretreatment was more effective in pretreating CC biomass compared to the SSB biomass.
- Full Text:
- Authors: Mafa, Mpho S , Malgas, Samkelo , Bhattacharya, Abhishek , Rashamuse, Konanani , Pletschke, Brett I
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/160273 , vital:40430 , https://doi.org/10.3390/agronomy10081211
- Description: Sweet sorghum bagasse (SSB) and corncob (CC) have been identified as promising feedstocks for the production of second-generation biofuels and other value-added chemicals. In this study, lime (Ca(OH)2) and NaOH pretreatment efficacy for decreasing recalcitrance from SSB and CC was investigated, and subsequently, the pretreated biomass was subjected to the hydrolytic action of an in-house formulated holocellulolytic enzyme cocktail (HEC-H). Compositional analysis revealed that SSB contained 29.34% lignin, 17.75% cellulose and 16.28% hemicellulose, while CC consisted of 22.51% lignin, 23.58% cellulose and 33.34% hemicellulose. Alkaline pretreatment was more effective in pretreating CC biomass compared to the SSB biomass.
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The effects of asymmetry in combination with reduced graphene oxide nanosheets on hydrazine electrocatalytic detection on cobalt phthalocyanines
- Mpeta, Lekhetho S, Sen, Pinar, Nyokong, Tebello
- Authors: Mpeta, Lekhetho S , Sen, Pinar , Nyokong, Tebello
- Date: 2020
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/186023 , vital:44456 , xlink:href="https://doi.org/10.1002/elan.202060094"
- Description: New symmetric {tetrakis [4-(4-(5-chloro-1Hbenzo[d]imidazol-2-yl) phenoxy phthalocyaninato] Co (II) (CoTPc)} and low symmetry {tris tert butyl phenoxy mono [4-(4-(5-chloro-1H-benzo[d]imidazol-2-yl) phenoxy phthalocyaninato]} Co (II) (CoMPc) were successfully synthesised and combined with reduced graphene oxide nanosheets (rGONS) for electrocatalytic detection of hydrazine. Prior to electrocatalysis, the probes were characterised using cyclic voltammetry and electrochemical impedance spectroscopy. Chronoamperometry was used to determine catalytic rate constant and the limit of detection (LOD). CoMPc-rGONS gave catalytic rate constant and LOD of 1.37×106 M 1 s 1 and 0.82 μM respectively, rendering it a more suitable probe for hydrazine, due to low symmetry.
- Full Text:
- Authors: Mpeta, Lekhetho S , Sen, Pinar , Nyokong, Tebello
- Date: 2020
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/186023 , vital:44456 , xlink:href="https://doi.org/10.1002/elan.202060094"
- Description: New symmetric {tetrakis [4-(4-(5-chloro-1Hbenzo[d]imidazol-2-yl) phenoxy phthalocyaninato] Co (II) (CoTPc)} and low symmetry {tris tert butyl phenoxy mono [4-(4-(5-chloro-1H-benzo[d]imidazol-2-yl) phenoxy phthalocyaninato]} Co (II) (CoMPc) were successfully synthesised and combined with reduced graphene oxide nanosheets (rGONS) for electrocatalytic detection of hydrazine. Prior to electrocatalysis, the probes were characterised using cyclic voltammetry and electrochemical impedance spectroscopy. Chronoamperometry was used to determine catalytic rate constant and the limit of detection (LOD). CoMPc-rGONS gave catalytic rate constant and LOD of 1.37×106 M 1 s 1 and 0.82 μM respectively, rendering it a more suitable probe for hydrazine, due to low symmetry.
- Full Text:
The effects of economic and political instability on decentralised secondary schools in Mashonaland Central Province, Zimbabwe: a case study
- Authors: Katsinde, Tapfuiwa James
- Date: 2020
- Subjects: Education, Secondary -- Political aspects -- Zimbabwe , Political violence -- Zimbabwe , Zimbabwe -- Economic conitions -- 1980- , Zimbabwe -- Politics and government -- 1980-
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/165610 , vital:41263
- Description: The purpose of the study was to analyse the effects of economic and political instability on decentralised secondary schools in Mashonaland Central Province, Zimbabwe between 2000 and 2017. Previous studies in Zimbabwe and elsewhere have shown that schools were negatively affected by economic and political instability. This study adds to this literature by using habitus as a conceptual framework. This was a qualitative study which made use of a multi-case research design. Data was collected using focus group discussions, interviews and document analysis. Eight research sites in the form of secondary schools in four districts were used. Data analysis was done using theoretical prepositions guided by research objectives and research questions. Data presentations was characterised by quotes of participants. Trustworthiness based on dependability, credibility, transferability and conformability formed the basis of quality assurance measures. The study revealed that economic and political instability had similar negative results in the field of secondary schools in the province. Economic instability negatively affected school activities which included teaching and learning, administration and development work. In addition economic instability affected individual secondary school actors psychologically. Economic instability affected relations among the secondary school actors by aggravating already existing contestations amongst actors. Similarly, political instability affected secondary school activities such as teaching and learning, school administration, development, donations and social benefits. Secondary school actors were individually affected psychologically and through physical abuse and the way they responded to political instability. The study has shown that decentralised secondary schools found it difficult to solve the problems introduced by economic and political instability especially when the instabilities occurred within the difficulties of the broader Zimbabwean context. It is therefore recommended that decentralised secondary schools should be assisted financially and with resources to withstand economic challenges. There is a need to protect secondary schools from political activities and activists as these have devastating effects on education if allowed to have a free reign. Further similar research is recommended for other provinces in the country.
- Full Text:
- Authors: Katsinde, Tapfuiwa James
- Date: 2020
- Subjects: Education, Secondary -- Political aspects -- Zimbabwe , Political violence -- Zimbabwe , Zimbabwe -- Economic conitions -- 1980- , Zimbabwe -- Politics and government -- 1980-
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/165610 , vital:41263
- Description: The purpose of the study was to analyse the effects of economic and political instability on decentralised secondary schools in Mashonaland Central Province, Zimbabwe between 2000 and 2017. Previous studies in Zimbabwe and elsewhere have shown that schools were negatively affected by economic and political instability. This study adds to this literature by using habitus as a conceptual framework. This was a qualitative study which made use of a multi-case research design. Data was collected using focus group discussions, interviews and document analysis. Eight research sites in the form of secondary schools in four districts were used. Data analysis was done using theoretical prepositions guided by research objectives and research questions. Data presentations was characterised by quotes of participants. Trustworthiness based on dependability, credibility, transferability and conformability formed the basis of quality assurance measures. The study revealed that economic and political instability had similar negative results in the field of secondary schools in the province. Economic instability negatively affected school activities which included teaching and learning, administration and development work. In addition economic instability affected individual secondary school actors psychologically. Economic instability affected relations among the secondary school actors by aggravating already existing contestations amongst actors. Similarly, political instability affected secondary school activities such as teaching and learning, school administration, development, donations and social benefits. Secondary school actors were individually affected psychologically and through physical abuse and the way they responded to political instability. The study has shown that decentralised secondary schools found it difficult to solve the problems introduced by economic and political instability especially when the instabilities occurred within the difficulties of the broader Zimbabwean context. It is therefore recommended that decentralised secondary schools should be assisted financially and with resources to withstand economic challenges. There is a need to protect secondary schools from political activities and activists as these have devastating effects on education if allowed to have a free reign. Further similar research is recommended for other provinces in the country.
- Full Text:
The effects of education on economic growth and global competitiveness: a statistical approach
- Mbatha, Erica Isabel Tavares Da Silva
- Authors: Mbatha, Erica Isabel Tavares Da Silva
- Date: 2020
- Subjects: Economic development -- Effect of education on -- South Africa , Education, Higher -- South Africa , Educational attainment -- South Africa
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/147558 , vital:38649
- Description: This thesis investigates whether there is a relationship between education, economic growth and global competitiveness and whether there is a relationship between South Africa’s current throughput rates in institutions of higher education, and its economic growth and global competitiveness. Economic growth is defined as a country’s ability to improve the life of its average citizen based on the strength of its economy. As such, it is increasingly important for a country to assess the factors that contribute to the improvement of their economy, which will ultimately result in its economic growth. Global competitiveness is an indication of how countries are able to provide for their people internally, as well as participate in the international market. To this end, economic growth and global competitiveness are two proxies that can be used to demonstrate the economic wellbeing of a country. Considering that prosperity under economic growth and global competitiveness of a country are driven by its people, one of the aims of this thesis was to investigate whether there is a relationship between education and economic growth and global competitiveness. Considering the recent demand in free education in South Africa, it is also important to understand whether there is a relationship between South Africa’s current throughput rates at higher education institutions and its economic growth and global competitiveness. Bearing in mind the political past which has led to inequality in the country, it is important to understand which types of education contribute to the economy and which types need to be further supported in order to increase the country’s economic productivity. Therefore, an additional aim of the thesis was to determine the relationship between South Africa’s current throughput rates in institutions of higher education, and its economic growth and global competitiveness. To address the aforementioned aims, data were collected from various open access online repositories. All the data were collated and numerous general linear models were constructed and tested to determine the different relationships as per the two aims. The results reveal that secondary school education had the highest impact on economic growth and global competitiveness on a global scale. This could be attributed to the fact that secondary school graduates tend to make up the largest part of the general workforce and as such, would make up a substantial proportion of the economy. Regarding South Africa, the only significant relationships were between green cluster universities (universities that focus on both research and technical training) and global competitiveness. Overall average throughput rates in all academic institutions were low; this could indicate that perhaps there are issues within the higher education system itself that need to be addressed in order to increase the throughput rate. From a managerial perspective, the results of this research stress the importance for the government to further investigate this area of study, as the call for free education becomes more prominent. The low throughput rates seem to suggest that the government is spending substantial amounts of money on students who do not always complete their studies. More research needs to be done to assess the root of the problem in South Africa’s tertiary education system, in order to ensure that this aspect increases its positive contribution towards the country’s economic growth and global competitiveness.
- Full Text:
- Authors: Mbatha, Erica Isabel Tavares Da Silva
- Date: 2020
- Subjects: Economic development -- Effect of education on -- South Africa , Education, Higher -- South Africa , Educational attainment -- South Africa
- Language: English
- Type: text , Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/147558 , vital:38649
- Description: This thesis investigates whether there is a relationship between education, economic growth and global competitiveness and whether there is a relationship between South Africa’s current throughput rates in institutions of higher education, and its economic growth and global competitiveness. Economic growth is defined as a country’s ability to improve the life of its average citizen based on the strength of its economy. As such, it is increasingly important for a country to assess the factors that contribute to the improvement of their economy, which will ultimately result in its economic growth. Global competitiveness is an indication of how countries are able to provide for their people internally, as well as participate in the international market. To this end, economic growth and global competitiveness are two proxies that can be used to demonstrate the economic wellbeing of a country. Considering that prosperity under economic growth and global competitiveness of a country are driven by its people, one of the aims of this thesis was to investigate whether there is a relationship between education and economic growth and global competitiveness. Considering the recent demand in free education in South Africa, it is also important to understand whether there is a relationship between South Africa’s current throughput rates at higher education institutions and its economic growth and global competitiveness. Bearing in mind the political past which has led to inequality in the country, it is important to understand which types of education contribute to the economy and which types need to be further supported in order to increase the country’s economic productivity. Therefore, an additional aim of the thesis was to determine the relationship between South Africa’s current throughput rates in institutions of higher education, and its economic growth and global competitiveness. To address the aforementioned aims, data were collected from various open access online repositories. All the data were collated and numerous general linear models were constructed and tested to determine the different relationships as per the two aims. The results reveal that secondary school education had the highest impact on economic growth and global competitiveness on a global scale. This could be attributed to the fact that secondary school graduates tend to make up the largest part of the general workforce and as such, would make up a substantial proportion of the economy. Regarding South Africa, the only significant relationships were between green cluster universities (universities that focus on both research and technical training) and global competitiveness. Overall average throughput rates in all academic institutions were low; this could indicate that perhaps there are issues within the higher education system itself that need to be addressed in order to increase the throughput rate. From a managerial perspective, the results of this research stress the importance for the government to further investigate this area of study, as the call for free education becomes more prominent. The low throughput rates seem to suggest that the government is spending substantial amounts of money on students who do not always complete their studies. More research needs to be done to assess the root of the problem in South Africa’s tertiary education system, in order to ensure that this aspect increases its positive contribution towards the country’s economic growth and global competitiveness.
- Full Text:
The effects of elevated atmospheric CO2 on the biological control of invasive aquatic weeds in South Africa
- Authors: Baso, Nompumelelo Catherine
- Date: 2020
- Subjects: Aquatic weeds -- Biological control -- South Africa , Plants -- Effect of atmospheric carbon dioxide on , Atmospheric carbon dioxide -- Environmental aspects
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/140772 , vital:37917
- Description: There has been a rapid increase in atmospheric CO2 concentration, from pre-industrial values of 280 ppm to more than 400 ppm currently, and this is expected to more than double by the end of the 21st century. Studies have shown that plants grown above 600 ppm tend to have an increased growth rate and invest more in carbon-based defences. This has important implications for the management of invasive alien plants, especially for the field of biological control which is mostly dependent on herbivorous insects. This is because insects reared on such plants have been shown to have reduced overall fitness. Nevertheless, most of the studies on potential changes in plant-insect interactions under elevated CO2 are based on agricultural systems, with only a limited number of these types of studies conducted on alien invasive weeds. However, climate change and invasive species are two of the most prevalent features of global environmental change. Therefore, this also warrants active research and experimental studies to better understand how these systems will be affected by future climates. Thus, the aim of this study was to investigate the effects of elevated atmospheric CO2 on the biological control of four invasive aquatic weeds (Azolla filiculoides, Salvinia molesta, Pistia stratiotes, and Myriophyllum aquaticum). These species are a threat to natural resources in South Africa but are currently under successful control by their biological control agents (Stenopelmus rufinasus, Cyrtobagous salviniae, Neohydronomus affinis, and Lysathia n. sp.). To achieve this, the selected plant species were grown in a three-factor experimental design in winter (CO2 X nutrients X herbivory), and another two-factorial design in summer (CO2 X herbivory). Atmospheric CO2 concentrations were set at ambient (400 ppm) or elevated (800 ppm), as per the predictions of the IPCC. As per my hypothesis, the results suggest that these species will become more challenging in future due to increased biomass production, asexual reproduction and a higher C: N ratio which is evident under high CO2 concentrations. Although the biological control agents were in some instances able to reduce this CO2 fertilisation effect, their efficacy was significantly reduced compared with the levels of control observed at ambient CO2. These results suggest that additional biological control agents and other management methods may be needed for continued control of these invasive macrophytes, both in South Africa and further afield where they are problematic.
- Full Text:
- Authors: Baso, Nompumelelo Catherine
- Date: 2020
- Subjects: Aquatic weeds -- Biological control -- South Africa , Plants -- Effect of atmospheric carbon dioxide on , Atmospheric carbon dioxide -- Environmental aspects
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/140772 , vital:37917
- Description: There has been a rapid increase in atmospheric CO2 concentration, from pre-industrial values of 280 ppm to more than 400 ppm currently, and this is expected to more than double by the end of the 21st century. Studies have shown that plants grown above 600 ppm tend to have an increased growth rate and invest more in carbon-based defences. This has important implications for the management of invasive alien plants, especially for the field of biological control which is mostly dependent on herbivorous insects. This is because insects reared on such plants have been shown to have reduced overall fitness. Nevertheless, most of the studies on potential changes in plant-insect interactions under elevated CO2 are based on agricultural systems, with only a limited number of these types of studies conducted on alien invasive weeds. However, climate change and invasive species are two of the most prevalent features of global environmental change. Therefore, this also warrants active research and experimental studies to better understand how these systems will be affected by future climates. Thus, the aim of this study was to investigate the effects of elevated atmospheric CO2 on the biological control of four invasive aquatic weeds (Azolla filiculoides, Salvinia molesta, Pistia stratiotes, and Myriophyllum aquaticum). These species are a threat to natural resources in South Africa but are currently under successful control by their biological control agents (Stenopelmus rufinasus, Cyrtobagous salviniae, Neohydronomus affinis, and Lysathia n. sp.). To achieve this, the selected plant species were grown in a three-factor experimental design in winter (CO2 X nutrients X herbivory), and another two-factorial design in summer (CO2 X herbivory). Atmospheric CO2 concentrations were set at ambient (400 ppm) or elevated (800 ppm), as per the predictions of the IPCC. As per my hypothesis, the results suggest that these species will become more challenging in future due to increased biomass production, asexual reproduction and a higher C: N ratio which is evident under high CO2 concentrations. Although the biological control agents were in some instances able to reduce this CO2 fertilisation effect, their efficacy was significantly reduced compared with the levels of control observed at ambient CO2. These results suggest that additional biological control agents and other management methods may be needed for continued control of these invasive macrophytes, both in South Africa and further afield where they are problematic.
- Full Text:
The establishment and rapid spread of Sagittaria Platyphylla in South Africa:
- Ndlovu, Mpilonhle S, Coetzee, Julie A, Nxumalo, Menzi M, Lalla, Reshnee, Shabalala, Ntombifuthi, Martin, Grant D
- Authors: Ndlovu, Mpilonhle S , Coetzee, Julie A , Nxumalo, Menzi M , Lalla, Reshnee , Shabalala, Ntombifuthi , Martin, Grant D
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149788 , vital:38884 , https://doi.org/10.3390/w12051472
- Description: Sagittaria platyphylla Engelm. (Alismataceae) is a freshwater aquatic macrophyte that has become an important invasive weed in freshwater systems in South Africa, New Zealand, Australia, and recently China. In South Africa, due to its rapid increase in distribution and ineffective control options, it is recognised as one of the country’s worst invasive aquatic alien plants. In this paper, we investigate the spread of the plant since its first detection in 2008, and the management strategies currently carried out against it. Despite early detection and rapid response programmes, which included chemical and mechanical control measures, the plant was able to spread both within and between sites, increasing from just one site in 2008 to 72 by 2019. Once introduced into a lotic system, the plant was able to spread rapidly, in some cases up to 120 km within 6 years, with an average of 10 km per year. The plant was successfully extirpated at some sites, however, due to the failure of chemical and mechanical control, biological control is currently being considered as a potential control option.
- Full Text:
- Authors: Ndlovu, Mpilonhle S , Coetzee, Julie A , Nxumalo, Menzi M , Lalla, Reshnee , Shabalala, Ntombifuthi , Martin, Grant D
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/149788 , vital:38884 , https://doi.org/10.3390/w12051472
- Description: Sagittaria platyphylla Engelm. (Alismataceae) is a freshwater aquatic macrophyte that has become an important invasive weed in freshwater systems in South Africa, New Zealand, Australia, and recently China. In South Africa, due to its rapid increase in distribution and ineffective control options, it is recognised as one of the country’s worst invasive aquatic alien plants. In this paper, we investigate the spread of the plant since its first detection in 2008, and the management strategies currently carried out against it. Despite early detection and rapid response programmes, which included chemical and mechanical control measures, the plant was able to spread both within and between sites, increasing from just one site in 2008 to 72 by 2019. Once introduced into a lotic system, the plant was able to spread rapidly, in some cases up to 120 km within 6 years, with an average of 10 km per year. The plant was successfully extirpated at some sites, however, due to the failure of chemical and mechanical control, biological control is currently being considered as a potential control option.
- Full Text:
The exploration of ARF1 screening assays to determine the drug status of ARF1 in cancer and malaria
- Authors: Ntlantsana, Apelele
- Date: 2020
- Subjects: ADP ribosylation , Golgi apparatus , Guanosine triphosphatase , G proteins , Malariotherapy , Malaria -- Research , Cancer -- Chemotherapy , Malaria -- Chemotherpay
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/167232 , vital:41458
- Description: ARF GTPases are key regulators of the secretory and endocytic pathways. ARF1 is involved in the secretory pathway. ARF1 has been implicated in the endoplasmic reticulum to Golgi transport, function of the Golgi apparatus and transport from the trans-Golgi network to endosomes. ARFs cycle between active GTP-bound and inactive GDP-bound conformations. GDP/GTP cycling is regulated by large families of guanine nucleotide exchange factors (GEFs) and GTPase activating proteins (GAPs). ARF GEFs facilitate the activation of ARFs by mediating the exchange of GDP for GTP, while ARF GAPs terminate ARF function by stimulating the hydrolysis of the terminal phosphate group of GTP. Based on existing evidence gained from gene manipulation and cell biological investigations, ARF1 has been shown to be fundamentally important for cancer cell proliferation and metastasis and may be a promising target for the development of anti-cancer drugs. Additionally, the conservation of ARFs in eukaryotic organisms leads to an interesting question of whether a single drug target can be used to target multiple diseases. In this case, can a human cancer drug employed for cancer therapy be used in anti-malarial drug therapies? To confirm the drug target status of ARFs using chemical validation experiments, novel inhibitory compounds are needed. This requires the development of complex in vitro protein- protein interaction assays that can be used to screen chemical libraries for ARF GTPase inhibitors. In this study, we developed a fluorescence resonance energy transfer (FRET) assay and a novel in vitro colorimetric plate-based assay to detect the activation status of truncated human and Plasmodium falciparum ARF1. In the case of the FRET assay, active (GTP-bound) and inactive (GDP-bound) ARF1 could be distinguished with Z-factor values >0.5, suggesting that further development of the assay format to identify GEF and GAP inhibitors may be feasible. In the case of the colorimetric assay, robust signals could be detected and the assay was useful for detecting the activation status of ARF1. However, although the activation of ARF1 by the Sec7 domains of the BIG1 and ARNO was detectable, signals were not robust enough to employ in screening campaigns.
- Full Text:
- Authors: Ntlantsana, Apelele
- Date: 2020
- Subjects: ADP ribosylation , Golgi apparatus , Guanosine triphosphatase , G proteins , Malariotherapy , Malaria -- Research , Cancer -- Chemotherapy , Malaria -- Chemotherpay
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/167232 , vital:41458
- Description: ARF GTPases are key regulators of the secretory and endocytic pathways. ARF1 is involved in the secretory pathway. ARF1 has been implicated in the endoplasmic reticulum to Golgi transport, function of the Golgi apparatus and transport from the trans-Golgi network to endosomes. ARFs cycle between active GTP-bound and inactive GDP-bound conformations. GDP/GTP cycling is regulated by large families of guanine nucleotide exchange factors (GEFs) and GTPase activating proteins (GAPs). ARF GEFs facilitate the activation of ARFs by mediating the exchange of GDP for GTP, while ARF GAPs terminate ARF function by stimulating the hydrolysis of the terminal phosphate group of GTP. Based on existing evidence gained from gene manipulation and cell biological investigations, ARF1 has been shown to be fundamentally important for cancer cell proliferation and metastasis and may be a promising target for the development of anti-cancer drugs. Additionally, the conservation of ARFs in eukaryotic organisms leads to an interesting question of whether a single drug target can be used to target multiple diseases. In this case, can a human cancer drug employed for cancer therapy be used in anti-malarial drug therapies? To confirm the drug target status of ARFs using chemical validation experiments, novel inhibitory compounds are needed. This requires the development of complex in vitro protein- protein interaction assays that can be used to screen chemical libraries for ARF GTPase inhibitors. In this study, we developed a fluorescence resonance energy transfer (FRET) assay and a novel in vitro colorimetric plate-based assay to detect the activation status of truncated human and Plasmodium falciparum ARF1. In the case of the FRET assay, active (GTP-bound) and inactive (GDP-bound) ARF1 could be distinguished with Z-factor values >0.5, suggesting that further development of the assay format to identify GEF and GAP inhibitors may be feasible. In the case of the colorimetric assay, robust signals could be detected and the assay was useful for detecting the activation status of ARF1. However, although the activation of ARF1 by the Sec7 domains of the BIG1 and ARNO was detectable, signals were not robust enough to employ in screening campaigns.
- Full Text:
The feasibility of prolonged exposure therapy for PTSD in low-and middle-income countries: a review
- Booysen, Duane D, Kagee, Ashraf
- Authors: Booysen, Duane D , Kagee, Ashraf
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/148505 , vital:38745 , DOI: 10.1080/20008198.2020.1753941
- Description: There is a need in the global south to evaluate and implement empirically supported psychological interventions to ameliorate symptoms of posttraumatic stress disorder (PTSD). Empirically supported treatments (ESTs) have increasingly been developed and implemented, yet the majority people in the global south do not have access to these treatments for mental disorders such as PTSD. Prolonged exposure therapy has accrued substantial empirical evidence to show it as an effective treatment for PTSD. Research on the effectiveness and acceptability of prolonged exposure in a low- and middle-income countries (LMICs) are sparse. This brief report presents a review of prolonged exposure (PE) therapy and its feasibility as a trauma therapy for PTSD in LMICs. First, we present a brief overview of PE as a first-line treatment for PTSD. Second, using South Africa as a case example, we present a brief overview of traumatic stress in South Africa and how mental healthcare has developed since the abolishment of apartheid in 1994. Lastly, we discuss the challenges pertaining to the dissemination and implementation of PE in LMICs and propose future perspectives regarding the implementation of ESTs such as PE in LMICs.
- Full Text:
- Authors: Booysen, Duane D , Kagee, Ashraf
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/148505 , vital:38745 , DOI: 10.1080/20008198.2020.1753941
- Description: There is a need in the global south to evaluate and implement empirically supported psychological interventions to ameliorate symptoms of posttraumatic stress disorder (PTSD). Empirically supported treatments (ESTs) have increasingly been developed and implemented, yet the majority people in the global south do not have access to these treatments for mental disorders such as PTSD. Prolonged exposure therapy has accrued substantial empirical evidence to show it as an effective treatment for PTSD. Research on the effectiveness and acceptability of prolonged exposure in a low- and middle-income countries (LMICs) are sparse. This brief report presents a review of prolonged exposure (PE) therapy and its feasibility as a trauma therapy for PTSD in LMICs. First, we present a brief overview of PE as a first-line treatment for PTSD. Second, using South Africa as a case example, we present a brief overview of traumatic stress in South Africa and how mental healthcare has developed since the abolishment of apartheid in 1994. Lastly, we discuss the challenges pertaining to the dissemination and implementation of PE in LMICs and propose future perspectives regarding the implementation of ESTs such as PE in LMICs.
- Full Text:
The forensic mental health profile of women offenders in the Eastern Cape, South Africa
- Authors: Nagdee, Mohammed
- Date: 2020
- Subjects: Female offenders -- Mental health , Female offenders -- South Africa -- Psychology , Female offenders -- South Africa -- Mental health , People with mental disabilities and crime , Women murderers -- South Africa , Forensic psychology -- South Africa , Fort England Psychiatric Hospital
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/167109 , vital:41438
- Description: Introduction There is a dearth of research on mental health issues in women offenders in South Africa, especially regarding their socio-demographic backgrounds, offence characteristics, and forensic mental health profiles. Objectives This study examined the psychosocial and forensic mental health profile of women offenders referred by eastern Cape courts for forensic evaluation. A range of socio-demographic, criminological, clinical and forensic mental health variables were systematically explored. Methods A bi-phasic, mixed methods study design was adopted. The clinical and forensic records of all women referred for forensic evaluation to Fort England forensic psychiatric hospital in the Eastern Cape, South Africa were retrospectively reviewed, comprising 173 individual cases in the study period of 1993-2017. Inferential statistical analyses (chi-squared and multivariate logistic regression) were applied to explore relationships between variables and offending outcomes of nterest. Detailed semi-structured interviews were subsequently conducted with a sub-sample of 8 women with mental disorder and violent offending ackgrounds. Interview transcripts thematically analysed. Results Most women came from impoverished and disadvantaged backgrounds. Whilst the majority were first offenders, a high proportion had violent index offences, with murder, attempted murder and assault with intent to do grievous bodily harm accounting for over half of cases. The majority of victims of violence were well known to the perpetrator, especially as biological children, intimate male partners or close family members. Biological children in their first year of life were particularly vulnerable to being victims of homicidal violence. Disproportionately high rates of pre-offence mental illness, alcohol misuse, HIV infection and prior abuse of the offender (especially by intimate male partners) were present. High rates of severe mental disorders (especially psychiatric comorbidity and psychotic-spectrum disorders), and relatively low rates of personality disorders and substance disorders were diagnosed. The majority of women were declared to lack trial competence and criminal capacity, respectively, following forensic evaluation. Women who had backgrounds of prior abuse themselves had over three mes the odds of subsequent violent offending in general, and almost six times the odds of homicidal offending in particular. Homicidal offences were significantly more commonly committed by women with no prior psychiatric history and no psychiatric comorbidity. Women who committed homicide had over eleven times of killing children as opposed to adults. Women over the age of 30 years, and those without psychiatric comorbidity, were significantly less likely to have killed children. Thematic analysis of interviews emphasized the important roles played by gender, self-image, and mental health in violent offending pathways. Conclusions A complex array of socio-demographic, criminological, clinical and forensic variables interact in women offenders of the Eastern Cape referred by courts for forensic evaluation. Exploration of these factors improves understanding of the broader psychosocial context of female offending, and of the personal experiences of the women themselves. This in turn provides an enhanced gender-focus to guide the progressive changes required in policy, legislative, clinical and research endeavours in this field.
- Full Text:
- Authors: Nagdee, Mohammed
- Date: 2020
- Subjects: Female offenders -- Mental health , Female offenders -- South Africa -- Psychology , Female offenders -- South Africa -- Mental health , People with mental disabilities and crime , Women murderers -- South Africa , Forensic psychology -- South Africa , Fort England Psychiatric Hospital
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/167109 , vital:41438
- Description: Introduction There is a dearth of research on mental health issues in women offenders in South Africa, especially regarding their socio-demographic backgrounds, offence characteristics, and forensic mental health profiles. Objectives This study examined the psychosocial and forensic mental health profile of women offenders referred by eastern Cape courts for forensic evaluation. A range of socio-demographic, criminological, clinical and forensic mental health variables were systematically explored. Methods A bi-phasic, mixed methods study design was adopted. The clinical and forensic records of all women referred for forensic evaluation to Fort England forensic psychiatric hospital in the Eastern Cape, South Africa were retrospectively reviewed, comprising 173 individual cases in the study period of 1993-2017. Inferential statistical analyses (chi-squared and multivariate logistic regression) were applied to explore relationships between variables and offending outcomes of nterest. Detailed semi-structured interviews were subsequently conducted with a sub-sample of 8 women with mental disorder and violent offending ackgrounds. Interview transcripts thematically analysed. Results Most women came from impoverished and disadvantaged backgrounds. Whilst the majority were first offenders, a high proportion had violent index offences, with murder, attempted murder and assault with intent to do grievous bodily harm accounting for over half of cases. The majority of victims of violence were well known to the perpetrator, especially as biological children, intimate male partners or close family members. Biological children in their first year of life were particularly vulnerable to being victims of homicidal violence. Disproportionately high rates of pre-offence mental illness, alcohol misuse, HIV infection and prior abuse of the offender (especially by intimate male partners) were present. High rates of severe mental disorders (especially psychiatric comorbidity and psychotic-spectrum disorders), and relatively low rates of personality disorders and substance disorders were diagnosed. The majority of women were declared to lack trial competence and criminal capacity, respectively, following forensic evaluation. Women who had backgrounds of prior abuse themselves had over three mes the odds of subsequent violent offending in general, and almost six times the odds of homicidal offending in particular. Homicidal offences were significantly more commonly committed by women with no prior psychiatric history and no psychiatric comorbidity. Women who committed homicide had over eleven times of killing children as opposed to adults. Women over the age of 30 years, and those without psychiatric comorbidity, were significantly less likely to have killed children. Thematic analysis of interviews emphasized the important roles played by gender, self-image, and mental health in violent offending pathways. Conclusions A complex array of socio-demographic, criminological, clinical and forensic variables interact in women offenders of the Eastern Cape referred by courts for forensic evaluation. Exploration of these factors improves understanding of the broader psychosocial context of female offending, and of the personal experiences of the women themselves. This in turn provides an enhanced gender-focus to guide the progressive changes required in policy, legislative, clinical and research endeavours in this field.
- Full Text:
The frightened
- Authors: Msimang, Lethokuhle
- Date: 2020
- Subjects: South African fiction (English) -- 21st century
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/144004 , vital:38302
- Description: My novella tells the coming of age story of a young woman battling the trauma of objectification. It explores the intimate relationship between a woman and a man, the young and the old, and the camaraderie between women. Having spent the greater part of her youth in various parts of the world, my protagonist faces the stark reality of returning home to her native country. This triggers an angst which causes her to leap between lived experiences and memories. An elegy on how difficult it is to love while dragging the long shadow of shame, it uses short prose and prose poetry to reveal the intimacies and intricacies of self hate and clandestine romances, and to unravel the complexities of memory and forgetting. Built from non linear fragments it seeks to refuse cliches regarding love and to question easy assumptions around gender, family and the innocence of youth. I draw inspiration from Vita Sackville West’s’ All Passion Spent , which eloquently portrays the placid and flickering thoughts of an old woman taking leave from the frivolity of youth. I’m similarly inspired by the sincerity and confessional aspects of Virginia Woolf and French poet and photographer Alix Roubaud ’s journals and Van Gogh’s letters, as well as Lydia Yuknavitch, Max Porter and Elena Ferante’s autobiographical fiction. I also draw from J’Lyn Chapman’s chapbook A Thing of Shreds and Patches and finally Dostoevky’s Notes from Underground , for their blurring of life and writing, and their exploration of grief and death as a lingering thought, together with the oppressive urge to create. In addition I’m inspired by the poetry of a new generation of South African female writers like Vangile Gatsho.
- Full Text:
- Authors: Msimang, Lethokuhle
- Date: 2020
- Subjects: South African fiction (English) -- 21st century
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/144004 , vital:38302
- Description: My novella tells the coming of age story of a young woman battling the trauma of objectification. It explores the intimate relationship between a woman and a man, the young and the old, and the camaraderie between women. Having spent the greater part of her youth in various parts of the world, my protagonist faces the stark reality of returning home to her native country. This triggers an angst which causes her to leap between lived experiences and memories. An elegy on how difficult it is to love while dragging the long shadow of shame, it uses short prose and prose poetry to reveal the intimacies and intricacies of self hate and clandestine romances, and to unravel the complexities of memory and forgetting. Built from non linear fragments it seeks to refuse cliches regarding love and to question easy assumptions around gender, family and the innocence of youth. I draw inspiration from Vita Sackville West’s’ All Passion Spent , which eloquently portrays the placid and flickering thoughts of an old woman taking leave from the frivolity of youth. I’m similarly inspired by the sincerity and confessional aspects of Virginia Woolf and French poet and photographer Alix Roubaud ’s journals and Van Gogh’s letters, as well as Lydia Yuknavitch, Max Porter and Elena Ferante’s autobiographical fiction. I also draw from J’Lyn Chapman’s chapbook A Thing of Shreds and Patches and finally Dostoevky’s Notes from Underground , for their blurring of life and writing, and their exploration of grief and death as a lingering thought, together with the oppressive urge to create. In addition I’m inspired by the poetry of a new generation of South African female writers like Vangile Gatsho.
- Full Text:
The genetic legacy of fragmentation and overexploitation in the threatened medicinal African pepper-bark tree, Warburgia salutaris:
- Senkoro, Annae M, Talhinhas, Pedro, Simões, Fernanda, Batista-Santos, Paula, Shackleton, Charlie M, Voeks, Robert A, Marques, Isabel, Ribeiro-Barros, Ana I
- Authors: Senkoro, Annae M , Talhinhas, Pedro , Simões, Fernanda , Batista-Santos, Paula , Shackleton, Charlie M , Voeks, Robert A , Marques, Isabel , Ribeiro-Barros, Ana I
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/176395 , vital:42690 , https://doi.org/10.1016/j.ecoser.2020.101201
- Description: The pepper-bark tree (Warburgia salutaris) is one of the most highly valued medicinal plant species worldwide. Native to southern Africa, this species has been extensively harvested for the bark, which is widely used in traditional health practices. Illegal harvesting coupled with habitat degradation has contributed to fragmentation of populations and a severe decline in its distribution. Even though the species is included in the IUCN Red List as Endangered, genetic data that would help conservation efforts and future re-introductions are absent. We therefore developed new molecular markers to understand patterns of genetic diversity, structure, and gene flow of W. salutaris in one of its most important areas of occurrence (Mozambique).
- Full Text:
- Authors: Senkoro, Annae M , Talhinhas, Pedro , Simões, Fernanda , Batista-Santos, Paula , Shackleton, Charlie M , Voeks, Robert A , Marques, Isabel , Ribeiro-Barros, Ana I
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/176395 , vital:42690 , https://doi.org/10.1016/j.ecoser.2020.101201
- Description: The pepper-bark tree (Warburgia salutaris) is one of the most highly valued medicinal plant species worldwide. Native to southern Africa, this species has been extensively harvested for the bark, which is widely used in traditional health practices. Illegal harvesting coupled with habitat degradation has contributed to fragmentation of populations and a severe decline in its distribution. Even though the species is included in the IUCN Red List as Endangered, genetic data that would help conservation efforts and future re-introductions are absent. We therefore developed new molecular markers to understand patterns of genetic diversity, structure, and gene flow of W. salutaris in one of its most important areas of occurrence (Mozambique).
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The impact of formulation variables on the optimization of pilot scale clobetasol 17-propionate creams
- Fauzee, Ayesha F B, Walker, Roderick B
- Authors: Fauzee, Ayesha F B , Walker, Roderick B
- Date: 2020
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/183275 , vital:43937 , xlink:href="https://doi.org/10.1080/23311916.2020.1804713"
- Description: The impact of formulation variables on the optimization of pilot scale clobetasol 17-propionate (CP) cream formulations was investigated using a Central Composite Design of Experiments. Thirty batches of cream were manufactured and the formulation variables assessed were % v/v propylene glycol, % w/w Gelot® 64, cetostearyl alcohol and glyceryl monostearate content. The responses monitored included viscosity, spreadability, pH, CP content, extrudability, electrical conductivity, and % CP released at 72 hours. The responses were compared to those of a reference product, Dermovate® cream. ANOVA analysis revealed that viscosity, spreadability, and % CP released at 72 hours were significant formulation responses (p more than 0.05). Cetostearyl alcohol had the greatest impact on quality of pilot scale products. An increase in cetostearyl alcohol resulted in an increase in viscosity, a decrease in spreadability, and a decrease in % CP released at 72 hours. The optimized pilot scale CP formulation contained 46% v/v propylene glycol, 8.6% w/w cetostearyl alcohol, 10.5% w/w glyceryl monostearate, and 3.8% w/w Gelot® 64. The resultant viscosity, spreadability, pH, CP content, extrudability, electrical conductivity, and % CP released were 44633cP, 24.91cm2, 101.23 %, 76.98 g/cm2, 198.23 µS/cm, and 50.23%. The addition of cetostearyl alcohol and Gelot® 64 is critical for establishing a soft formulation that leads to the formation of a mixed crystal bilayer network of high viscosity. The formation of a separate crystalline lipophilic network usually occurs in semi-solid formulations that contain high concentrations of emulsifier, leading to an increase in shear stress and greater physicochemical stability of the formulation. The use of experimental design approaches to formulation development activities, permit evaluation of multiple factors simultaneously, reducing the time and costs associated with product development activities, whilst identifying a composition design space and ensuring stable and effective dosage forms are produced.
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- Authors: Fauzee, Ayesha F B , Walker, Roderick B
- Date: 2020
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/183275 , vital:43937 , xlink:href="https://doi.org/10.1080/23311916.2020.1804713"
- Description: The impact of formulation variables on the optimization of pilot scale clobetasol 17-propionate (CP) cream formulations was investigated using a Central Composite Design of Experiments. Thirty batches of cream were manufactured and the formulation variables assessed were % v/v propylene glycol, % w/w Gelot® 64, cetostearyl alcohol and glyceryl monostearate content. The responses monitored included viscosity, spreadability, pH, CP content, extrudability, electrical conductivity, and % CP released at 72 hours. The responses were compared to those of a reference product, Dermovate® cream. ANOVA analysis revealed that viscosity, spreadability, and % CP released at 72 hours were significant formulation responses (p more than 0.05). Cetostearyl alcohol had the greatest impact on quality of pilot scale products. An increase in cetostearyl alcohol resulted in an increase in viscosity, a decrease in spreadability, and a decrease in % CP released at 72 hours. The optimized pilot scale CP formulation contained 46% v/v propylene glycol, 8.6% w/w cetostearyl alcohol, 10.5% w/w glyceryl monostearate, and 3.8% w/w Gelot® 64. The resultant viscosity, spreadability, pH, CP content, extrudability, electrical conductivity, and % CP released were 44633cP, 24.91cm2, 101.23 %, 76.98 g/cm2, 198.23 µS/cm, and 50.23%. The addition of cetostearyl alcohol and Gelot® 64 is critical for establishing a soft formulation that leads to the formation of a mixed crystal bilayer network of high viscosity. The formation of a separate crystalline lipophilic network usually occurs in semi-solid formulations that contain high concentrations of emulsifier, leading to an increase in shear stress and greater physicochemical stability of the formulation. The use of experimental design approaches to formulation development activities, permit evaluation of multiple factors simultaneously, reducing the time and costs associated with product development activities, whilst identifying a composition design space and ensuring stable and effective dosage forms are produced.
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The impact of illustrated side effect information on understanding and sustained retention of antiretroviral side effect knowledge:
- Scheihing, Konstantin W, Tanner, Jane L, Weaver, Matthew J T, Schöniger, Matthias
- Authors: Scheihing, Konstantin W , Tanner, Jane L , Weaver, Matthew J T , Schöniger, Matthias
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/156389 , vital:39985 , https://doi.org/10.1016/j.jup.2020.101043
- Description: About 7.5 million South Africans access gratuitous drinking water via communal taps provided by municipalities under a free basic water policy. Supplying running water for free to low-income communities is essential but can result in water wastage due to a potential indifference of non-paying end-consumers. The consequence is a loss of municipal water and financial resources. We outline a new strategy that rewards low-income communities for reducing water wastage. The incentive strategy promotes water conservation and community development and decreases recurring water-related public expenses. The concept is funded by a percentage of municipal cost savings yielded from the respective water conservation.
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- Authors: Scheihing, Konstantin W , Tanner, Jane L , Weaver, Matthew J T , Schöniger, Matthias
- Date: 2020
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/156389 , vital:39985 , https://doi.org/10.1016/j.jup.2020.101043
- Description: About 7.5 million South Africans access gratuitous drinking water via communal taps provided by municipalities under a free basic water policy. Supplying running water for free to low-income communities is essential but can result in water wastage due to a potential indifference of non-paying end-consumers. The consequence is a loss of municipal water and financial resources. We outline a new strategy that rewards low-income communities for reducing water wastage. The incentive strategy promotes water conservation and community development and decreases recurring water-related public expenses. The concept is funded by a percentage of municipal cost savings yielded from the respective water conservation.
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The impact of minimum wages on human resource management practices in the hospitality industry: a case study of selected firms in Polokwane, Limpopo Province
- Authors: Nkoana, Lekgoa Julia
- Date: 2020
- Subjects: Minimum wage -- South Africa , Minimum wage -- Sociological aspects -- South Africa -- Polokane , Minimum wage -- South Africa -- Polokane -- Case studies , Hospitality industry -- South Africa -- Polokwane , Hospitality industry -- Sociological aspects -- South Africa -- Polokwane , Hospitality industry -- South Africa -- Polokwane -- Case studies
- Language: English
- Type: text , Thesis , Masters , MSocSci
- Identifier: http://hdl.handle.net/10962/167188 , vital:41445
- Description: This thesis sought to identify and isolate the impact of the minimum wage in the hospitality industry of Polokwane. To achieve this, qualitative research methods were used. These methods enabled an in-depth understanding of minimum wages. Thus in-depth, semi-structured interviews were conducted as they provided detailed information by enabling the researcher and the participant to have an informal, but expressive conversation about the minimum wage. Contrary to the assumptions of orthodox economics, which claim minimum wages create a ‘shock’ resulting in job losses, this research found that the minimum wage was absorbed causing few disruptions in existing work and employment relations in the selected establishments. This capacity to absorb the minimum wage is largely the outcome of informal labour relations policies and practices.
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- Authors: Nkoana, Lekgoa Julia
- Date: 2020
- Subjects: Minimum wage -- South Africa , Minimum wage -- Sociological aspects -- South Africa -- Polokane , Minimum wage -- South Africa -- Polokane -- Case studies , Hospitality industry -- South Africa -- Polokwane , Hospitality industry -- Sociological aspects -- South Africa -- Polokwane , Hospitality industry -- South Africa -- Polokwane -- Case studies
- Language: English
- Type: text , Thesis , Masters , MSocSci
- Identifier: http://hdl.handle.net/10962/167188 , vital:41445
- Description: This thesis sought to identify and isolate the impact of the minimum wage in the hospitality industry of Polokwane. To achieve this, qualitative research methods were used. These methods enabled an in-depth understanding of minimum wages. Thus in-depth, semi-structured interviews were conducted as they provided detailed information by enabling the researcher and the participant to have an informal, but expressive conversation about the minimum wage. Contrary to the assumptions of orthodox economics, which claim minimum wages create a ‘shock’ resulting in job losses, this research found that the minimum wage was absorbed causing few disruptions in existing work and employment relations in the selected establishments. This capacity to absorb the minimum wage is largely the outcome of informal labour relations policies and practices.
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The impact of South African monetary policy on output and price stability in Namibia
- William, Anna Martha Tandakos
- Authors: William, Anna Martha Tandakos
- Date: 2020
- Subjects: Common Monetary Area (Organization) , Monetary unions -- Africa, Southern , Monetary policy -- South Africa , Monetary policy -- Namibia , Repurchase agreements -- South Africa , Repurchase agreements -- Namibia , Inflation (Finance) -- South Africa , Inflation (Finance) -- Namibia , Namibia -- Economic conditions , Transmission mechanism (Monetary policy)
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/167709 , vital:41505
- Description: Namibia is a member country of the Common Monetary Area (CMA) with Lesotho, Swaziland and South Africa. South Africa is the anchor country to which the smaller member states have surrendered monetary policy authority. This thesis therefore examines the empirical relationship between the South Africa repo rate (SArepo) on the one hand and Namibia’s repo rate (Namrepo), Prime Lending Rate (PLR), Private Sector Credit Extension (PSCE), Consumer Price Index (CPI) and Gross Domestic Product (GDP) on the other hand. The credit channel of the monetary policy transmission mechanism informs the theoretical foundation of the thesis. Vector Autoregression modelling, variance decomposition and impulse response functions were used to explore the nature and strength of the relationship between the SArepo and said variables in Namibia. This thesis used quarterly data for the period 2003 to 2017. The variation in the Namrepo was predominantly explained by the SArepo, which confirmed that the Namrepo strongly followed the SArepo. The impulse response function results found that the impact of a contractionary monetary policy shock (an increase in the SArepo) lasted for up to six quarters before the effect started to fade. The Namrepo exhibited a positive response to an increase in the SArepo, although the magnitude of the response started to fade after the third quarter. The PLR, as a representative of market rates in Namibia, also exhibited a positive response to an increase in the SArepo. The results were similar for the Namrepo and the PLR because changes to the NamRepo are passed through immediately to the market interest rates. On the real variables, the study found that a contractionary monetary policy shock initiated in South Africa resulted in an increase in inflation in Namibia of less than 0.4 percent, whereas output declined by less than 1.0 percent. Interestingly, a Namibia (domestic) contractionary monetary policy shock resulted in a decline in prices of less than 0.4 percent. GDP, on the other hand, exhibited a positive response to a contractionary monetary shock, with an increase of less than 2.0 percent in the first four quarters of the period observed. The results reflected that a contractionary monetary policy shock from South Africa was more effective with regard to its impact on GDP; however, a domestic monetary policy shock was more effective at impacting on domestic inflation compared to the impact from South Africa.
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- Authors: William, Anna Martha Tandakos
- Date: 2020
- Subjects: Common Monetary Area (Organization) , Monetary unions -- Africa, Southern , Monetary policy -- South Africa , Monetary policy -- Namibia , Repurchase agreements -- South Africa , Repurchase agreements -- Namibia , Inflation (Finance) -- South Africa , Inflation (Finance) -- Namibia , Namibia -- Economic conditions , Transmission mechanism (Monetary policy)
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10962/167709 , vital:41505
- Description: Namibia is a member country of the Common Monetary Area (CMA) with Lesotho, Swaziland and South Africa. South Africa is the anchor country to which the smaller member states have surrendered monetary policy authority. This thesis therefore examines the empirical relationship between the South Africa repo rate (SArepo) on the one hand and Namibia’s repo rate (Namrepo), Prime Lending Rate (PLR), Private Sector Credit Extension (PSCE), Consumer Price Index (CPI) and Gross Domestic Product (GDP) on the other hand. The credit channel of the monetary policy transmission mechanism informs the theoretical foundation of the thesis. Vector Autoregression modelling, variance decomposition and impulse response functions were used to explore the nature and strength of the relationship between the SArepo and said variables in Namibia. This thesis used quarterly data for the period 2003 to 2017. The variation in the Namrepo was predominantly explained by the SArepo, which confirmed that the Namrepo strongly followed the SArepo. The impulse response function results found that the impact of a contractionary monetary policy shock (an increase in the SArepo) lasted for up to six quarters before the effect started to fade. The Namrepo exhibited a positive response to an increase in the SArepo, although the magnitude of the response started to fade after the third quarter. The PLR, as a representative of market rates in Namibia, also exhibited a positive response to an increase in the SArepo. The results were similar for the Namrepo and the PLR because changes to the NamRepo are passed through immediately to the market interest rates. On the real variables, the study found that a contractionary monetary policy shock initiated in South Africa resulted in an increase in inflation in Namibia of less than 0.4 percent, whereas output declined by less than 1.0 percent. Interestingly, a Namibia (domestic) contractionary monetary policy shock resulted in a decline in prices of less than 0.4 percent. GDP, on the other hand, exhibited a positive response to a contractionary monetary shock, with an increase of less than 2.0 percent in the first four quarters of the period observed. The results reflected that a contractionary monetary policy shock from South Africa was more effective with regard to its impact on GDP; however, a domestic monetary policy shock was more effective at impacting on domestic inflation compared to the impact from South Africa.
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The impact of the Dieselgate vehicle emmissions scandal on customer equity in the South African automotive industry
- Authors: Pillay, Sylvester Deenan
- Date: 2020
- Subjects: Automobile industry and trade -- Germany , Automobile industry and trade -- Law and legislation -- Germany , Automobile industry and trade -- South Africa , Automobiles -- Motors -- Exhaust gas , Brand choice -- South Africa , Customer preferences -- South Africa , Consumer satisfaction -- South Africa , Brand loyalty -- South Africa , Consumer behavior -- South Africa , Dieselgate
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/149304 , vital:38823
- Description: Prominent German automotive manufacturers had been tampering with emissions for some time before it became public knowledge in September 2015. It is then that that the term ‘Dieselgate’ was coined in reference to the scandal. As the scandal became public knowledge, manufacturers accused of emissions cheating faced challenges on several fronts, including legal, financial and environmental. While the ‘backlash’ as a result of the scandal was apparent in other countries, it was not as apparent in South Africa. This research paper set out to explore the impact that the Dieselgate scandal had in South Africa in terms of customer equity. Data analysis was undertaken using a two-pronged approach. The first of these was analysis of vehicle sales data using a paired t-test. This was to understand whether sales had seen a decline pre-, as well as post-scandal. The results point to a sales decline, this highlights that Dieselgate was a factor even though other, unexamined factors, were not investigated. The second instrument used was a customer equity questionnaire, this provided insight into the real opinions of consumers in South Africa about the affected brands. The analysis revealed that the affected manufacturers operating in South Africa had seen no negative effects in terms of customer equity. Based on the results, it could be said that market factors, which was not part of the research, play a great role in consumers’ preferences or mindsets. Additionally, manufacturers can operate with a degree of latitude in certain markets. This is based on market factors in a specific market as well as the regulations imposed and enforced in that market. Lastly, customer equity is a complex theory that includes a multitude of converging theories. Based on this fact, it is currently difficult to evaluate customer equity in its entirety in a single paper. A comprehensive model is yet to be developed that can effectively measure customer equity in an all-encompassing way.
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- Authors: Pillay, Sylvester Deenan
- Date: 2020
- Subjects: Automobile industry and trade -- Germany , Automobile industry and trade -- Law and legislation -- Germany , Automobile industry and trade -- South Africa , Automobiles -- Motors -- Exhaust gas , Brand choice -- South Africa , Customer preferences -- South Africa , Consumer satisfaction -- South Africa , Brand loyalty -- South Africa , Consumer behavior -- South Africa , Dieselgate
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: http://hdl.handle.net/10962/149304 , vital:38823
- Description: Prominent German automotive manufacturers had been tampering with emissions for some time before it became public knowledge in September 2015. It is then that that the term ‘Dieselgate’ was coined in reference to the scandal. As the scandal became public knowledge, manufacturers accused of emissions cheating faced challenges on several fronts, including legal, financial and environmental. While the ‘backlash’ as a result of the scandal was apparent in other countries, it was not as apparent in South Africa. This research paper set out to explore the impact that the Dieselgate scandal had in South Africa in terms of customer equity. Data analysis was undertaken using a two-pronged approach. The first of these was analysis of vehicle sales data using a paired t-test. This was to understand whether sales had seen a decline pre-, as well as post-scandal. The results point to a sales decline, this highlights that Dieselgate was a factor even though other, unexamined factors, were not investigated. The second instrument used was a customer equity questionnaire, this provided insight into the real opinions of consumers in South Africa about the affected brands. The analysis revealed that the affected manufacturers operating in South Africa had seen no negative effects in terms of customer equity. Based on the results, it could be said that market factors, which was not part of the research, play a great role in consumers’ preferences or mindsets. Additionally, manufacturers can operate with a degree of latitude in certain markets. This is based on market factors in a specific market as well as the regulations imposed and enforced in that market. Lastly, customer equity is a complex theory that includes a multitude of converging theories. Based on this fact, it is currently difficult to evaluate customer equity in its entirety in a single paper. A comprehensive model is yet to be developed that can effectively measure customer equity in an all-encompassing way.
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The impact of the minimum wage on poverty and industrial relations in the hospitality industry in Grahamstown, South Africa
- Authors: Maqubela, Zikisa
- Date: 2020
- Subjects: Hospitality industry -- South Africa -- Grahamstown , Minimum wage -- South Africa -- Grahamstown , Poverty -- South Africa -- Grahamstown , Wages -- South Africa -- Grahamstown , Service industries workers -- South Africa -- Grahamstown , Industrial relations -- South Africa -- Grahamstown
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/118685 , vital:34658
- Description: This dissertation endeavours to unpack and understand the impact of the minimum wage on the hospitality industry with a specific focus on Grahamstown. The areas of impact that are of immediate interest were the impact on poverty and industrial relations. In operationalising this research, a qualitative research approach was adopted. The overall design of the study was a case study in a bid to ensure deeper insights may be extracted from semi-structured interviews that were then thematically analysed. Theoretically, the study was guided by the understanding of citizenship as articulated by Mamdani as well as Keynesian theory. The central theme when exploring the minimum wage in relation to poverty is that the minimum wage that is currently paid is enough to aid workers and their families in escaping abject poverty, however, it does not go far enough to further ensure that they totally escape poverty as measured by the Upper Bound Poverty Line. The inadequacy of the minimum wage in ensuring that people are pushed out of poverty would then mean that their claims to citizenship are compromised and the quality of life they can access is often below what would be readily accepted of a citizen of South Africa. Lifestyle entrepreneurs offer an alternative approach to doing business that can see higher pay as further entrench claims to citizenship. The central case around industrial relations is that the impact of the minimum wage is indeterminate for two reasons. Broadly speaking, the impact would need to be reviewed at a macro-level and not simply within the impacted sectors. This is the various interconnected value chains that could feel indirect impacts at the initiation of a minimum wage. Further, the impact such changes has to individual firms is also indeterminate as employers have a range of choices that they can adopt in absorbing the impact of a minimum wage, which may include simply increasing the price the end consumer pays or retrenching some staff members. However, the choice that employers would make in this context is not predetermined but rather would vary between firms due to the very specifics of each firm.
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- Authors: Maqubela, Zikisa
- Date: 2020
- Subjects: Hospitality industry -- South Africa -- Grahamstown , Minimum wage -- South Africa -- Grahamstown , Poverty -- South Africa -- Grahamstown , Wages -- South Africa -- Grahamstown , Service industries workers -- South Africa -- Grahamstown , Industrial relations -- South Africa -- Grahamstown
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10962/118685 , vital:34658
- Description: This dissertation endeavours to unpack and understand the impact of the minimum wage on the hospitality industry with a specific focus on Grahamstown. The areas of impact that are of immediate interest were the impact on poverty and industrial relations. In operationalising this research, a qualitative research approach was adopted. The overall design of the study was a case study in a bid to ensure deeper insights may be extracted from semi-structured interviews that were then thematically analysed. Theoretically, the study was guided by the understanding of citizenship as articulated by Mamdani as well as Keynesian theory. The central theme when exploring the minimum wage in relation to poverty is that the minimum wage that is currently paid is enough to aid workers and their families in escaping abject poverty, however, it does not go far enough to further ensure that they totally escape poverty as measured by the Upper Bound Poverty Line. The inadequacy of the minimum wage in ensuring that people are pushed out of poverty would then mean that their claims to citizenship are compromised and the quality of life they can access is often below what would be readily accepted of a citizen of South Africa. Lifestyle entrepreneurs offer an alternative approach to doing business that can see higher pay as further entrench claims to citizenship. The central case around industrial relations is that the impact of the minimum wage is indeterminate for two reasons. Broadly speaking, the impact would need to be reviewed at a macro-level and not simply within the impacted sectors. This is the various interconnected value chains that could feel indirect impacts at the initiation of a minimum wage. Further, the impact such changes has to individual firms is also indeterminate as employers have a range of choices that they can adopt in absorbing the impact of a minimum wage, which may include simply increasing the price the end consumer pays or retrenching some staff members. However, the choice that employers would make in this context is not predetermined but rather would vary between firms due to the very specifics of each firm.
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