A case study on the incidence and extent of medullated and coloured fibres in the commercially produced South African wool clip 2010 – 2017
- Authors: Zietsman, Jolandrie
- Date: 2022-04
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55445 , vital:52002
- Description: No formal study on the incidence and extent of medullated and coloured fibres has been performed in South Africa. The purpose of this research project was to investigate the validity of the claims that there has been an increase in the production of wool contaminated with medullated and coloured fibres. Therefore, the main aim of this study was to determine whether the incidence and extent of medullated and coloured fibres in the South African wool clip have changed over time. Secondly, the study aimed to determine whether the incidence and extent of medullated and coloured fibres have a distinct geographic distribution. This study explored eight years of wool production records (2010 to 2017) obtained from BKB, the largest wool broker in South Africa. For the purpose of this research, the wool-producing areas of South Africa were divided into 6 regions, according to average annual rainfall, vegetation type and major farming practices applied in the area. Statistical analysis of the data included descriptive statistics, analysis of variance and post-hoc tests, as well as regression analyses. This study succeeded in quantifying the extent and prevalence of contamination with medullated and coloured fibres in the South African wool clip. The overarching conclusions were: • Floating kemp is the most important contaminant of wool in South Africa, with the incidence of harsh kemp and coloured fibres being very low. • Generally, the most important areas that need attention in combatting contamination in the South African wool clip, are the Mixed Farming Summer Rainfall Region, the Semi-Arid Grassveld and the High Rainfall Grassland. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Zietsman, Jolandrie
- Date: 2022-04
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55445 , vital:52002
- Description: No formal study on the incidence and extent of medullated and coloured fibres has been performed in South Africa. The purpose of this research project was to investigate the validity of the claims that there has been an increase in the production of wool contaminated with medullated and coloured fibres. Therefore, the main aim of this study was to determine whether the incidence and extent of medullated and coloured fibres in the South African wool clip have changed over time. Secondly, the study aimed to determine whether the incidence and extent of medullated and coloured fibres have a distinct geographic distribution. This study explored eight years of wool production records (2010 to 2017) obtained from BKB, the largest wool broker in South Africa. For the purpose of this research, the wool-producing areas of South Africa were divided into 6 regions, according to average annual rainfall, vegetation type and major farming practices applied in the area. Statistical analysis of the data included descriptive statistics, analysis of variance and post-hoc tests, as well as regression analyses. This study succeeded in quantifying the extent and prevalence of contamination with medullated and coloured fibres in the South African wool clip. The overarching conclusions were: • Floating kemp is the most important contaminant of wool in South Africa, with the incidence of harsh kemp and coloured fibres being very low. • Generally, the most important areas that need attention in combatting contamination in the South African wool clip, are the Mixed Farming Summer Rainfall Region, the Semi-Arid Grassveld and the High Rainfall Grassland. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
Cape Vultures (Gyps coprotheres) and the threat of wind farms: a race to extinction?
- Authors: Brooke, Francis Rae
- Date: 2022-04
- Subjects: Wind Turbines --Blades --Materials , Gyps --South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/55910 , vital:54399
- Description: The development of wind energy is increasing globally and is often considered more environmentally friendly when compared to fossil fuel technologies. However, one of the ecological drawbacks of wind energy are the collisions of wildlife with turbine blades. In addition, the resulting anthropogenic landscape transformation can negatively impact populations. The Cape Vulture (Gyps coprotheres), a large endangered southern African endemic species, thus may be at risk from turbine development. The species has decreased dramatically in the past 50 years and understanding how additional mortalities from wind turbine impacts affect the population is needed to ensure effective conservation efforts. This study aimed to determine the population response to this emerging threat. This study first reviewed the species-, site- and wind farm- specific traits that make Gyps species vulnerable to collision with wind energy infrastructure. It examined the monitoring practices employed during the pre- and post-construction phase and mitigation measures in South Africa and compared it with international standards. Furthermore, wind energy development may disrupt landscape connectivity and understanding which, and how habitat patches are used is needed. Using network theory combined with telemetry data from tagged individuals across three age classes, habitat patch use was identified. Further, environmental variables associated with identified habitat patches were identified. Additionally, considering the wind energy industry is expanding in South Africa, exploring how the Cape Vulture population will respond to this novel and emerging threat may aid future conservation management plans. Therefore, using a population viability analysis approach, the study explored how present and future wind turbine mortality scenarios impact the Cape Vulture population and how the population will respond to increased wind turbine development. , Thesis (PhD) -- Faculty of Science, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Brooke, Francis Rae
- Date: 2022-04
- Subjects: Wind Turbines --Blades --Materials , Gyps --South Africa
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/55910 , vital:54399
- Description: The development of wind energy is increasing globally and is often considered more environmentally friendly when compared to fossil fuel technologies. However, one of the ecological drawbacks of wind energy are the collisions of wildlife with turbine blades. In addition, the resulting anthropogenic landscape transformation can negatively impact populations. The Cape Vulture (Gyps coprotheres), a large endangered southern African endemic species, thus may be at risk from turbine development. The species has decreased dramatically in the past 50 years and understanding how additional mortalities from wind turbine impacts affect the population is needed to ensure effective conservation efforts. This study aimed to determine the population response to this emerging threat. This study first reviewed the species-, site- and wind farm- specific traits that make Gyps species vulnerable to collision with wind energy infrastructure. It examined the monitoring practices employed during the pre- and post-construction phase and mitigation measures in South Africa and compared it with international standards. Furthermore, wind energy development may disrupt landscape connectivity and understanding which, and how habitat patches are used is needed. Using network theory combined with telemetry data from tagged individuals across three age classes, habitat patch use was identified. Further, environmental variables associated with identified habitat patches were identified. Additionally, considering the wind energy industry is expanding in South Africa, exploring how the Cape Vulture population will respond to this novel and emerging threat may aid future conservation management plans. Therefore, using a population viability analysis approach, the study explored how present and future wind turbine mortality scenarios impact the Cape Vulture population and how the population will respond to increased wind turbine development. , Thesis (PhD) -- Faculty of Science, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
An information privacy compliance model based on configurable software objects
- Authors: Kandeh, Agbor Takang
- Date: 2022-04
- Subjects: Software protection , Software configuration management
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58374 , vital:59052
- Description: South Africa’s Protection of Personal Information Act (POPIA), Act 4 of 2013 requires that organisations enforce information privacy rules in technology systems handling personally identifiable information (PII). This is in line with other national and regional information privacy legislations across the world. However, the absence of a coherent way to implement this legislation, in the form of software objects in technology systems, has created a gap in organisations around the world. To bridge this gap, this thesis proposes a compliance model based on a conceptual framework, a design framework, and a software-based prototype. The objective of this model is to test how best to enforce information privacy regulations in technology systems handling personally identifiable information. The proposed conceptual framework views information privacy compliance as a context-driven reality enforced by configurable software objects. To refine the conceptual framework, a design framework and a software-based prototype was developed using the design science research methodology as the theoretical construct and the UML ontology language and object-oriented programming paradigms as the underpinning practical construct. This prototype will assist organisational stakeholders in understanding and visualising the theoretical and practical constructs of handling personally identifiable information as software objects in technology systems. The design and implementation of this prototype resulted in some practical and theoretical recommendations. These include the adoption of a decision model notation (DMN) as a formal standard to manage privacy rules and the creation of a context-aware privacy compliance zone (CAP). However, the main contribution of this thesis is a reusable conceptual and contextual design framework and a prototype through which POPIA rules, or those of any similar information privacy law, such as the European General Data Protection Regulation (GDPR), can be encapsulated into software objects used in technology systems to ease compliance with information privacy regulations. , Thesis (PhD) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Kandeh, Agbor Takang
- Date: 2022-04
- Subjects: Software protection , Software configuration management
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58374 , vital:59052
- Description: South Africa’s Protection of Personal Information Act (POPIA), Act 4 of 2013 requires that organisations enforce information privacy rules in technology systems handling personally identifiable information (PII). This is in line with other national and regional information privacy legislations across the world. However, the absence of a coherent way to implement this legislation, in the form of software objects in technology systems, has created a gap in organisations around the world. To bridge this gap, this thesis proposes a compliance model based on a conceptual framework, a design framework, and a software-based prototype. The objective of this model is to test how best to enforce information privacy regulations in technology systems handling personally identifiable information. The proposed conceptual framework views information privacy compliance as a context-driven reality enforced by configurable software objects. To refine the conceptual framework, a design framework and a software-based prototype was developed using the design science research methodology as the theoretical construct and the UML ontology language and object-oriented programming paradigms as the underpinning practical construct. This prototype will assist organisational stakeholders in understanding and visualising the theoretical and practical constructs of handling personally identifiable information as software objects in technology systems. The design and implementation of this prototype resulted in some practical and theoretical recommendations. These include the adoption of a decision model notation (DMN) as a formal standard to manage privacy rules and the creation of a context-aware privacy compliance zone (CAP). However, the main contribution of this thesis is a reusable conceptual and contextual design framework and a prototype through which POPIA rules, or those of any similar information privacy law, such as the European General Data Protection Regulation (GDPR), can be encapsulated into software objects used in technology systems to ease compliance with information privacy regulations. , Thesis (PhD) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
The Effects of Alcohol and Sunstance Abuse on Productivity in the Sundays River Valley Citrus Industry
- Authors: Fick, Gerard Hendrik
- Date: 2022-04
- Subjects: Substance abuse , Citrus fruit industry , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57654 , vital:58191
- Description: COVID-19 has created a new world to conduct business and few industries were fortunate enough to continue to operate as essential services throughout the pandemic. The South African Citrus Industry was one of these industries. During this pandemic, certain amenities were regarded as dangerous and potentially a contributor to the spread of the COVID-19 virus. Alcohol was deemed one of these contributors. During the lockdown regulations implemented in March of 2020, the Sundays River Valley Citrus Industry noticed certain interesting developments concerning labour and productivity. Initial review of the effects of alcohol and substance abuse on the productivity of citrus workers, revealed limited research into the broader South African Citrus Industry, with more focus on the Western Cape and related wine farms. The aim of this research study is to identify the impact of alcohol and substance abuse on productivity within the Sundays River Valley Citrus Industry. Specifically focusing on absenteeism, workers injuries on duty and workplace incidents pertaining to disciplinary processes. The research further aims to add a monetary value to the implication of these events on the Sundays River Valley Citrus Industry and the possible management strategies involved to remediate the potential affects thereof. This study uses the phenomenological and case study research approaches focusing on the workplace of the researcher within the Sundays River Valley Citrus Industry. Using qualitative content analysis during the interview process, the themes and findings were evaluated alongside the research questions and was found to be in agreement with the views flowing from the research data. The analysis further revealed that Sundays River Valley Citrus Industry is in need of adequate management strategies due to the seasonal nature of the industry to improve labourer job satisfaction and in turn productivity and efficiency. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Fick, Gerard Hendrik
- Date: 2022-04
- Subjects: Substance abuse , Citrus fruit industry , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57654 , vital:58191
- Description: COVID-19 has created a new world to conduct business and few industries were fortunate enough to continue to operate as essential services throughout the pandemic. The South African Citrus Industry was one of these industries. During this pandemic, certain amenities were regarded as dangerous and potentially a contributor to the spread of the COVID-19 virus. Alcohol was deemed one of these contributors. During the lockdown regulations implemented in March of 2020, the Sundays River Valley Citrus Industry noticed certain interesting developments concerning labour and productivity. Initial review of the effects of alcohol and substance abuse on the productivity of citrus workers, revealed limited research into the broader South African Citrus Industry, with more focus on the Western Cape and related wine farms. The aim of this research study is to identify the impact of alcohol and substance abuse on productivity within the Sundays River Valley Citrus Industry. Specifically focusing on absenteeism, workers injuries on duty and workplace incidents pertaining to disciplinary processes. The research further aims to add a monetary value to the implication of these events on the Sundays River Valley Citrus Industry and the possible management strategies involved to remediate the potential affects thereof. This study uses the phenomenological and case study research approaches focusing on the workplace of the researcher within the Sundays River Valley Citrus Industry. Using qualitative content analysis during the interview process, the themes and findings were evaluated alongside the research questions and was found to be in agreement with the views flowing from the research data. The analysis further revealed that Sundays River Valley Citrus Industry is in need of adequate management strategies due to the seasonal nature of the industry to improve labourer job satisfaction and in turn productivity and efficiency. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Spatial modelling of accessibility to tuberculosis treatment: the case of Ngaka Modiri Molema District
- Authors: Ramotsongwa, Karabo Naome
- Date: 2022-04
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55435 , vital:52000
- Description: Accessibility to healthcare refers to the availability, or the provision of healthcare-byhealthcare professionals and stakeholders and individuals' ability to obtain care and treatment. It affects overall physical, social, and mental health; disease and disability prevention; detection and treatment of health conditions; standard of living; preventable death; and life expectancy, and it is crucial to the performance of health care systems around the world. If healthcare services are available and are in sufficient supply, people will be able to seek health care, and a population will have access to services. The leading cause of death globally is Tuberculosis (TB) and South Africa is amongst the top 5 countries most affected by TB. This is aggravated by high HIV/AIDS statistics. Children belowthe age of 4, between the ages of 4- 15, and women and men of working ages are highly affected by TB and it is the primary cause of death in these groups in the Ngaka Modiri Molema District. This study used study tools like Spatial Modelling, Geographic Information Systems and software like ArcGIS 10.5, TerrSet IDRISI 18.30, and secondary data from the North West Departmentof Health (Tier.net &DHIS) and also TB patients’ home addresses to investigate the accessibility of TB treatment in Ngaka Modiri Molema, in order to spatially visualize the distribution of a communicable disease like TB and public healthcare facilities in the Ngaka Modiri Molema (NMM) District and suggest optimum sites for hospital facilities. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Ramotsongwa, Karabo Naome
- Date: 2022-04
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55435 , vital:52000
- Description: Accessibility to healthcare refers to the availability, or the provision of healthcare-byhealthcare professionals and stakeholders and individuals' ability to obtain care and treatment. It affects overall physical, social, and mental health; disease and disability prevention; detection and treatment of health conditions; standard of living; preventable death; and life expectancy, and it is crucial to the performance of health care systems around the world. If healthcare services are available and are in sufficient supply, people will be able to seek health care, and a population will have access to services. The leading cause of death globally is Tuberculosis (TB) and South Africa is amongst the top 5 countries most affected by TB. This is aggravated by high HIV/AIDS statistics. Children belowthe age of 4, between the ages of 4- 15, and women and men of working ages are highly affected by TB and it is the primary cause of death in these groups in the Ngaka Modiri Molema District. This study used study tools like Spatial Modelling, Geographic Information Systems and software like ArcGIS 10.5, TerrSet IDRISI 18.30, and secondary data from the North West Departmentof Health (Tier.net &DHIS) and also TB patients’ home addresses to investigate the accessibility of TB treatment in Ngaka Modiri Molema, in order to spatially visualize the distribution of a communicable disease like TB and public healthcare facilities in the Ngaka Modiri Molema (NMM) District and suggest optimum sites for hospital facilities. , Thesis (MSc) -- Faculty of Science, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
Encapsulation of flame retardants for lithium-ion battery safety
- Authors: Ntombela, Nompilo Princess
- Date: 2022-04
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55412 , vital:51993
- Description: Lithium-ion technology takes the lead in electric mobility systems, resulting in an increase in the global demand for Li-ion batteries; however, these batteries are associated with numerous safety concerns. Additionally, there are high costs, high energy and power issues which are some of its key limitations. Research efforts are focused on overcoming these obstacles, with different approaches being explored, such as the investigation of more stable salts, modification of active materials and organic solvents, and the use of electrolyte additives. This study focused specifically on electrolyte additives since the electrolyte is one of the most unstable components of the battery. The electrolyte’s decomposition is one of the reactions that occur inside a battery, which may occur due to overcharging or due to an internal short circuit, amongst others. The electrolyte’s decomposition occurs at the early stages of the thermal runaway process and forms part of the reactions that lead to fires and explosions. Thus, this research aims to develop suitable electrolyte additives to improve the safety aspects of Li-ion batteries. Flame retardant additives show great promise in reducing the flammability of the electrolyte in Li-ion batteries, since they serve to suppress the chemical reactions associated with battery ignition. They retard the fires by scavenging the active radical species formed during the decomposition reaction. In this study, the use of flame retardants was investigated. Flame retardant additives have shown to have flame impeding properties inside a battery; however, their direct addition to the electrolyte tends to cause adverse effects on the ionic conductivity and electrochemical performance of the cells. This study investigated an alternative option - the option to microencapsulate such additives into a neutral compound to ensure that the flame retardant has minimal/no effect on the performance of the battery. This investigation looked at tris(2-butoxyethyl) phosphate (TBP) and bis(2,2,2-trifluoroethyl) methylphosphonate (BFP) as flame retardant additives for the electrolyte. The TBP and BFP flame retardants were microencapsulated in poly(urea formaldehyde) (PUF) coating material via in situ polymerization method. The capsules were characterized using various analytical techniques - to prove it was successfully encapsulated. Electrochemical studies were further done on the capsules and neat flame retardants inside a coin cell. Self-extinguishing time (SET), which is the flammability test, proved that the additives have flame retarding abilities. Opto-digital microscopy (DSX) and scanning electron microscopy (SEM) did confirm the spherical shape of the microcapsules, where SEM also showed the smooth outer layer of the microcapsules and its hollow inner side. Fourier transform infrared spectroscopy (FTIR) proved the presence of the TBP and BFP inside the PUF resin by showing that the chemical composition of microcapsules consisted of both the PUF and flame retardant additives. Simultaneous DSC-TGA (DST) was also performed which showed that the microcapsules were stable before 200 °C, which indicates it would not decompose before the thermal runaway events are occurring. TGA analysis did show that the microcapsules underwent multiple decomposition steps upon heating. Additionally, 31P nuclear magnetic resonance (NMR) was used to quantify the amount of flame retardants additives encapsulated inside PUF shell, and also confirmed the stability of the microcapsules for one month in the electrolyte and at temperatures up to 200 °C. The ionic conductivity was vastly decreased when the flame retardants were added directly to the electrolyte. However, adding the flame retardants in a form of capsules had minimal effect on the ionic conductivity. The cycle capacities of the capsules were also improved when the capsules were added to the cell compared to that of neat flame retardants. The same effect was also noticed when doing Electrochemical Impedance Spectroscopy (EIS). This shows that microencapsulation improves the resistance of the cell caused by the flame retardant in comparison to when added directly to the electrolyte of the cell. , Thesis (MSC) -- Faculty of Science, School of Biomolecular and Chemical Sciences, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Ntombela, Nompilo Princess
- Date: 2022-04
- Subjects: Port Elizabeth (South Africa) , Eastern Cape (South Africa) , South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55412 , vital:51993
- Description: Lithium-ion technology takes the lead in electric mobility systems, resulting in an increase in the global demand for Li-ion batteries; however, these batteries are associated with numerous safety concerns. Additionally, there are high costs, high energy and power issues which are some of its key limitations. Research efforts are focused on overcoming these obstacles, with different approaches being explored, such as the investigation of more stable salts, modification of active materials and organic solvents, and the use of electrolyte additives. This study focused specifically on electrolyte additives since the electrolyte is one of the most unstable components of the battery. The electrolyte’s decomposition is one of the reactions that occur inside a battery, which may occur due to overcharging or due to an internal short circuit, amongst others. The electrolyte’s decomposition occurs at the early stages of the thermal runaway process and forms part of the reactions that lead to fires and explosions. Thus, this research aims to develop suitable electrolyte additives to improve the safety aspects of Li-ion batteries. Flame retardant additives show great promise in reducing the flammability of the electrolyte in Li-ion batteries, since they serve to suppress the chemical reactions associated with battery ignition. They retard the fires by scavenging the active radical species formed during the decomposition reaction. In this study, the use of flame retardants was investigated. Flame retardant additives have shown to have flame impeding properties inside a battery; however, their direct addition to the electrolyte tends to cause adverse effects on the ionic conductivity and electrochemical performance of the cells. This study investigated an alternative option - the option to microencapsulate such additives into a neutral compound to ensure that the flame retardant has minimal/no effect on the performance of the battery. This investigation looked at tris(2-butoxyethyl) phosphate (TBP) and bis(2,2,2-trifluoroethyl) methylphosphonate (BFP) as flame retardant additives for the electrolyte. The TBP and BFP flame retardants were microencapsulated in poly(urea formaldehyde) (PUF) coating material via in situ polymerization method. The capsules were characterized using various analytical techniques - to prove it was successfully encapsulated. Electrochemical studies were further done on the capsules and neat flame retardants inside a coin cell. Self-extinguishing time (SET), which is the flammability test, proved that the additives have flame retarding abilities. Opto-digital microscopy (DSX) and scanning electron microscopy (SEM) did confirm the spherical shape of the microcapsules, where SEM also showed the smooth outer layer of the microcapsules and its hollow inner side. Fourier transform infrared spectroscopy (FTIR) proved the presence of the TBP and BFP inside the PUF resin by showing that the chemical composition of microcapsules consisted of both the PUF and flame retardant additives. Simultaneous DSC-TGA (DST) was also performed which showed that the microcapsules were stable before 200 °C, which indicates it would not decompose before the thermal runaway events are occurring. TGA analysis did show that the microcapsules underwent multiple decomposition steps upon heating. Additionally, 31P nuclear magnetic resonance (NMR) was used to quantify the amount of flame retardants additives encapsulated inside PUF shell, and also confirmed the stability of the microcapsules for one month in the electrolyte and at temperatures up to 200 °C. The ionic conductivity was vastly decreased when the flame retardants were added directly to the electrolyte. However, adding the flame retardants in a form of capsules had minimal effect on the ionic conductivity. The cycle capacities of the capsules were also improved when the capsules were added to the cell compared to that of neat flame retardants. The same effect was also noticed when doing Electrochemical Impedance Spectroscopy (EIS). This shows that microencapsulation improves the resistance of the cell caused by the flame retardant in comparison to when added directly to the electrolyte of the cell. , Thesis (MSC) -- Faculty of Science, School of Biomolecular and Chemical Sciences, 2022
- Full Text:
- Date Issued: 2022-04
Usable Security Heuristics for Instant Messaging Application Development
- Authors: Van Niekerk, Craig Michael
- Date: 2022-04
- Subjects: Application software -- Development
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58506 , vital:59655
- Description: As instant messaging (IM) applications have become more popular, the privacy and security concerns associated with their usage has become ever more relevant. As with many software programs, IM applications have a history of security vulnerabilities. Although IM application usage is globally increasing, it has been found that currently no generally recognised standards exist to aid IM application developers when developing the usability of the security features they implement. The problem is further exacerbated as research suggests that typical users have neither the requisite understanding of the available IM security features, nor the capacity to make full use of those protection features. The primary objective of this study is to create a set of usable security heuristics to assist developers of instant messaging applications to consider the usability of the security features implemented in these applications. This primary objective is further divided into several secondary objectives, which collectively aim to address the proposed problem. Therefore, the secondary objectives are to determine IM security risks and their related implications on users; to identify and investigate existing security and usability heuristics, guidelines, standards and best practices for mobile application development; to map the identified security and usability heuristics, guidelines, standards and best practices to IM applications; and to develop a prototype to demonstrate the applicability of the proposed usable security heuristics to a typical IM application. First, a comprehensive literature study is used to determine and understand the information security threats relevant to IM applications, how IM applications operate, the security features implemented by IM applications and the potential impact the relevant information security threats could have on IM application users. Thereafter, a further literature review and content analysis are used to identify and investigate existing heuristics, guidelines, standards, and best practices for mobile application development. The findings from the content analysis, in combination with the previously identified threats to IM applications, are then mapped to IM applications, and a preliminary set of usable security heuristics for IM application development is established. This preliminary set of usable security heuristics undergoes multiple iterations of refinement to establish the proposed set of usable security heuristics for IM application development. Furthermore, an expert review is conducted to validate the proposed set of usable security heuristics from the perspectives of security, usability, and mobile application development. In addition, the expert review was also used to determine the efficacy, utility, and quality of the proposed usable security heuristics. To further validate the proposed heuristics, a proof-of-concept prototype is used, in addition to the expert review, to demonstrate the applicability of the proposed set of usable security heuristics to a typical IM application. Such a set of usable security heuristics would be useful for IM application developers and would result in the vi improved implementation of usable security, leading to an improvement in the security of IM applications. The proposed set of usable security heuristics therefore adds a further contribution to this research area, providing a solid foundation for future research. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Van Niekerk, Craig Michael
- Date: 2022-04
- Subjects: Application software -- Development
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58506 , vital:59655
- Description: As instant messaging (IM) applications have become more popular, the privacy and security concerns associated with their usage has become ever more relevant. As with many software programs, IM applications have a history of security vulnerabilities. Although IM application usage is globally increasing, it has been found that currently no generally recognised standards exist to aid IM application developers when developing the usability of the security features they implement. The problem is further exacerbated as research suggests that typical users have neither the requisite understanding of the available IM security features, nor the capacity to make full use of those protection features. The primary objective of this study is to create a set of usable security heuristics to assist developers of instant messaging applications to consider the usability of the security features implemented in these applications. This primary objective is further divided into several secondary objectives, which collectively aim to address the proposed problem. Therefore, the secondary objectives are to determine IM security risks and their related implications on users; to identify and investigate existing security and usability heuristics, guidelines, standards and best practices for mobile application development; to map the identified security and usability heuristics, guidelines, standards and best practices to IM applications; and to develop a prototype to demonstrate the applicability of the proposed usable security heuristics to a typical IM application. First, a comprehensive literature study is used to determine and understand the information security threats relevant to IM applications, how IM applications operate, the security features implemented by IM applications and the potential impact the relevant information security threats could have on IM application users. Thereafter, a further literature review and content analysis are used to identify and investigate existing heuristics, guidelines, standards, and best practices for mobile application development. The findings from the content analysis, in combination with the previously identified threats to IM applications, are then mapped to IM applications, and a preliminary set of usable security heuristics for IM application development is established. This preliminary set of usable security heuristics undergoes multiple iterations of refinement to establish the proposed set of usable security heuristics for IM application development. Furthermore, an expert review is conducted to validate the proposed set of usable security heuristics from the perspectives of security, usability, and mobile application development. In addition, the expert review was also used to determine the efficacy, utility, and quality of the proposed usable security heuristics. To further validate the proposed heuristics, a proof-of-concept prototype is used, in addition to the expert review, to demonstrate the applicability of the proposed set of usable security heuristics to a typical IM application. Such a set of usable security heuristics would be useful for IM application developers and would result in the vi improved implementation of usable security, leading to an improvement in the security of IM applications. The proposed set of usable security heuristics therefore adds a further contribution to this research area, providing a solid foundation for future research. , Thesis (MA) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
Re-industrialisation of the Nelson Mandela Metropole regional economy
- Authors: Sipuka, Msingathi
- Date: 2022-04
- Subjects: Economic growth , Economic development -- Nelson Mandela
- Language: English
- Type: Doctoral's theses , text
- Identifier: http://hdl.handle.net/10948/58190 , vital:58675
- Description: The main assumption underlying this study is that structural change brings about growth and in turn translates to poverty reduction through the expansion of labour absorbing economic sectors and employment in higher productivity non-primary sectors. Since labour productivity in non-primary sectors is higher, the large-scale migration of labour out of primary activity should raise labour incomes and result in poverty reducing growth. Economic growth driven by structural change in income and employment should therefore aid and promote poverty reduction. Notwithstanding the important role of the national sphere of government in setting the industrial policy framework in the country, this research places emphasis on the role and contribution of regional economies in translating active industrial policy into implementation and development results. In South Africa the rise in poverty can be partially attributed to an economy that is not growing at the required rates needed to, among others, create the necessary employment opportunities at scale. The ability to adequately respond to these national development challenges depends on key economic regions in the country unlocking growth in several economic sectors, in particular the manufacturing sector which is described as labour-intensive and with a high multiplier effect on the economy. To this end, the capacity of regional governments working with regional stakeholders to plan, coordinate, implement and provide oversight over integrated regional industrialisation strategies and implementation plans becomes pivotal. Equally, the Nelson Mandela Metropole, which is the geographic area of focus for this study, has identified and prioritised the growth of the manufacturing sector as one of its economic priorities, reflecting its ambition of driving a programme of re-industrialisation and positioning the region as one of the country’s industrial centres. The main proposition of this study is that the Nelson Mandela Metropole, like other regional economies in the country, is not able to drive the programme of re-industrialisation. The reason for this inability is that it does not have a coherent framework of levers that are at the disposal of regional governments and regional stakeholders to design and implement a programme of re-industrialisation within the ii context of a globalised economy but that takes into consideration national peculiarities of the manufacturing sector. The fact that the regions do not have an integrated regional implementation plan for reviving the manufacturing sector creates an eco-system where there is limited coordination of the actions of different role players, in turn limiting collaboration within the region. The research has identified a gap in the literature between the two areas that impact on this study, namely, industrial development and regional economic development. The study navigates the literature across these two areas to emerge with a synthesised framework of strategic enablers for industrialisation at a regional level. These strategic enablers can be used by regional governments to develop an integrated regional framework to drive the industrialisation programme at this level. With specific reference to the Nelson Mandela Metropole, the study used a mixed methods research approach to assess regional actors’ views on the strategic enablers identified through the literature. A survey was employed to extract data from manufacturing enterprises in the region on the perceived constraints to the growth of the manufacturing sector. The quantitative data were complemented by qualitative data collected through semi-structured interviews with key regional informants. The results of the study reveal some of the general weaknesses that confront the region as it pursues regional industrialisation. Importantly, the study uses the identified regional strategic enablers to develop a framework that can be used by regional actors to design an implementation plan. , Thesis (PhD) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Sipuka, Msingathi
- Date: 2022-04
- Subjects: Economic growth , Economic development -- Nelson Mandela
- Language: English
- Type: Doctoral's theses , text
- Identifier: http://hdl.handle.net/10948/58190 , vital:58675
- Description: The main assumption underlying this study is that structural change brings about growth and in turn translates to poverty reduction through the expansion of labour absorbing economic sectors and employment in higher productivity non-primary sectors. Since labour productivity in non-primary sectors is higher, the large-scale migration of labour out of primary activity should raise labour incomes and result in poverty reducing growth. Economic growth driven by structural change in income and employment should therefore aid and promote poverty reduction. Notwithstanding the important role of the national sphere of government in setting the industrial policy framework in the country, this research places emphasis on the role and contribution of regional economies in translating active industrial policy into implementation and development results. In South Africa the rise in poverty can be partially attributed to an economy that is not growing at the required rates needed to, among others, create the necessary employment opportunities at scale. The ability to adequately respond to these national development challenges depends on key economic regions in the country unlocking growth in several economic sectors, in particular the manufacturing sector which is described as labour-intensive and with a high multiplier effect on the economy. To this end, the capacity of regional governments working with regional stakeholders to plan, coordinate, implement and provide oversight over integrated regional industrialisation strategies and implementation plans becomes pivotal. Equally, the Nelson Mandela Metropole, which is the geographic area of focus for this study, has identified and prioritised the growth of the manufacturing sector as one of its economic priorities, reflecting its ambition of driving a programme of re-industrialisation and positioning the region as one of the country’s industrial centres. The main proposition of this study is that the Nelson Mandela Metropole, like other regional economies in the country, is not able to drive the programme of re-industrialisation. The reason for this inability is that it does not have a coherent framework of levers that are at the disposal of regional governments and regional stakeholders to design and implement a programme of re-industrialisation within the ii context of a globalised economy but that takes into consideration national peculiarities of the manufacturing sector. The fact that the regions do not have an integrated regional implementation plan for reviving the manufacturing sector creates an eco-system where there is limited coordination of the actions of different role players, in turn limiting collaboration within the region. The research has identified a gap in the literature between the two areas that impact on this study, namely, industrial development and regional economic development. The study navigates the literature across these two areas to emerge with a synthesised framework of strategic enablers for industrialisation at a regional level. These strategic enablers can be used by regional governments to develop an integrated regional framework to drive the industrialisation programme at this level. With specific reference to the Nelson Mandela Metropole, the study used a mixed methods research approach to assess regional actors’ views on the strategic enablers identified through the literature. A survey was employed to extract data from manufacturing enterprises in the region on the perceived constraints to the growth of the manufacturing sector. The quantitative data were complemented by qualitative data collected through semi-structured interviews with key regional informants. The results of the study reveal some of the general weaknesses that confront the region as it pursues regional industrialisation. Importantly, the study uses the identified regional strategic enablers to develop a framework that can be used by regional actors to design an implementation plan. , Thesis (PhD) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Factors that influence customers’ spaza shopping experience
- Authors: Yase, Tembelihle
- Date: 2022-04
- Subjects: Home-based businesses--South Africa-Port Elizabeth
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55780 , vital:53877
- Description: Spaza shops, originating in South Africa during the 1970’s, often operate in townships, selling products and services to customers who live mostly within walking distance of the shop. Almost five decades later, and spaza shops abound across most townships in South Africa. These businesses not only provide grocery items and services to customers in the township community but are a means for people to earn a livelihood for themselves and also contribute economically through creating employment opportunities in the informal sector. Research about spaza shops shows that there is a growing customer interest in purchasing products and services from spaza shops, and that if spaza shops are to continue growing, they need to be more competitive. Research by renowned authors in the field of experience marketing, Pine and Gilmore (2013) puts forward that experiences are the new relevant economic offering, and an essential value creating platform for businesses to be more competitive. However, before customer experience can be enhanced in spaza shops, it is important to first identify the factors that influence customer experience in a spaza shop context. Considering the latter, the primary objective of this study was to measure factors that influence customer experience in spaza shops. A descriptive research design was selected for this study, followed by a positivistic research paradigm and quantitative research methodology. Secondary data was collected through articles, journals, books and from newspapers. Primary data was collected using a survey in the form of a self-administered questionnaire. The target population for this study was customers who are older than 18 years, who had bought grocery items (products and services) in spaza shops located in Nelson Mandela Bay townships specifically in Walmer Township, KwaZakhele, Zwide, Motherwell, KwaMagxaki and New Brighton. A non-probability sampling method and convenience sampling technique were used to distribute a total of 200 selfadministered questionnaires. Once the data collection phase was completed, the data from the questionnaires was recorded, coded, and cleaned on a single excel spreadsheet. After the latter was done, a total of 185 questionnaires were deemed useable and considered for data analysis, which was conducted with the aid of IBM SPSS Statistics version 27 (computer software). , Thesis (MCom) -- Faculty of Business and Economic Sciences, School of Management Sciences, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Yase, Tembelihle
- Date: 2022-04
- Subjects: Home-based businesses--South Africa-Port Elizabeth
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/55780 , vital:53877
- Description: Spaza shops, originating in South Africa during the 1970’s, often operate in townships, selling products and services to customers who live mostly within walking distance of the shop. Almost five decades later, and spaza shops abound across most townships in South Africa. These businesses not only provide grocery items and services to customers in the township community but are a means for people to earn a livelihood for themselves and also contribute economically through creating employment opportunities in the informal sector. Research about spaza shops shows that there is a growing customer interest in purchasing products and services from spaza shops, and that if spaza shops are to continue growing, they need to be more competitive. Research by renowned authors in the field of experience marketing, Pine and Gilmore (2013) puts forward that experiences are the new relevant economic offering, and an essential value creating platform for businesses to be more competitive. However, before customer experience can be enhanced in spaza shops, it is important to first identify the factors that influence customer experience in a spaza shop context. Considering the latter, the primary objective of this study was to measure factors that influence customer experience in spaza shops. A descriptive research design was selected for this study, followed by a positivistic research paradigm and quantitative research methodology. Secondary data was collected through articles, journals, books and from newspapers. Primary data was collected using a survey in the form of a self-administered questionnaire. The target population for this study was customers who are older than 18 years, who had bought grocery items (products and services) in spaza shops located in Nelson Mandela Bay townships specifically in Walmer Township, KwaZakhele, Zwide, Motherwell, KwaMagxaki and New Brighton. A non-probability sampling method and convenience sampling technique were used to distribute a total of 200 selfadministered questionnaires. Once the data collection phase was completed, the data from the questionnaires was recorded, coded, and cleaned on a single excel spreadsheet. After the latter was done, a total of 185 questionnaires were deemed useable and considered for data analysis, which was conducted with the aid of IBM SPSS Statistics version 27 (computer software). , Thesis (MCom) -- Faculty of Business and Economic Sciences, School of Management Sciences, 2022
- Full Text:
- Date Issued: 2022-04
Assessing the technologies transforming the logistics Industry in Nelson Mandela Bay
- Authors: Ruiters, Byron
- Date: 2022-04
- Subjects: Business logistics -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58168 , vital:58616
- Description: Supply chain disruptions such as those emanating from the current Covid 19 pandemic have made the logistics industry to undergo fast and unprecedented change. In such unpredictable times, innovation and technology adoption has emerged as one of the major trends and key solutions to lead the way for the future of logistics. This is also because a successful and efficient logistics strategy requires the use of technology, as well as the strategic value derived from a firm's capacity. This in turn enables firms to recognise possibilities and challenges resulting from technological advancement in order to attain long-term competitiveness. The industry is implementing these technologies with caution in order to provide faster, cheaper, more dependable and long-term supply. This study sought to investigate whether Nelson Mandela Bay (NMB) is keeping up with the current logistics technology trends and systems that are transforming logistics firms in South Africa, the African continent and the rest of the world. To achieve this primary objective, the study also sought to achieve the following sub-objectives, namely: to identify the logistics technologies transforming logistics firms in NMB; to assess the role of logistics technologies affecting logistics firms in NMB. The study also sought to ascertain the challenges of using logistics technologies transforming the logistics firms in NMB; and examine the effect of logistics technology adoption and use on business performance of logistics firms in NMB. The study used an online closed-ended questionnaire distributed via google forms to collect primary data from a sample of 132 respondents across all the logistics firms (which consisted of warehousing, transport and packaging firms) in NMB. The study targeted those respondents involved in the management of the targeted logistics firms. The empirical results show that technology use in logistics firms has advanced a lot to vehicle tracking, packaging, inventory control, and communication systems, as well as robotics among logistics firms in NMB. The results also identified logistics technologies such as the Internet of Things, Robotic Process automation, Digital Supply Chain Twins, Vendor managed system and RFID as some of the major technologies currently transforming the logistics firms in NMB. The study found that many challenges exist with logistics technology adoption, and cited lack of investment towards logistics technology; the fear of iii losing jobs as people get replaced by technology such as machines and robots; high logistics costs as some of the major challenges. More so, the study results reveal that logistics technology adoption and use play a positive and significant role in logistics firms. The study further reports a significant and positive effect of logistics technology adoption and use on business performance of logistics firms. This study concludes that though still at infancy stage, logistics firms in NMB are keeping upbreast with the current logistics technological trends. The study suggests that firms need to speed up the adoption of the needed logistics technologies available to their respective business in order to remain efficient and effective. , Thesis (MA) --Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Ruiters, Byron
- Date: 2022-04
- Subjects: Business logistics -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58168 , vital:58616
- Description: Supply chain disruptions such as those emanating from the current Covid 19 pandemic have made the logistics industry to undergo fast and unprecedented change. In such unpredictable times, innovation and technology adoption has emerged as one of the major trends and key solutions to lead the way for the future of logistics. This is also because a successful and efficient logistics strategy requires the use of technology, as well as the strategic value derived from a firm's capacity. This in turn enables firms to recognise possibilities and challenges resulting from technological advancement in order to attain long-term competitiveness. The industry is implementing these technologies with caution in order to provide faster, cheaper, more dependable and long-term supply. This study sought to investigate whether Nelson Mandela Bay (NMB) is keeping up with the current logistics technology trends and systems that are transforming logistics firms in South Africa, the African continent and the rest of the world. To achieve this primary objective, the study also sought to achieve the following sub-objectives, namely: to identify the logistics technologies transforming logistics firms in NMB; to assess the role of logistics technologies affecting logistics firms in NMB. The study also sought to ascertain the challenges of using logistics technologies transforming the logistics firms in NMB; and examine the effect of logistics technology adoption and use on business performance of logistics firms in NMB. The study used an online closed-ended questionnaire distributed via google forms to collect primary data from a sample of 132 respondents across all the logistics firms (which consisted of warehousing, transport and packaging firms) in NMB. The study targeted those respondents involved in the management of the targeted logistics firms. The empirical results show that technology use in logistics firms has advanced a lot to vehicle tracking, packaging, inventory control, and communication systems, as well as robotics among logistics firms in NMB. The results also identified logistics technologies such as the Internet of Things, Robotic Process automation, Digital Supply Chain Twins, Vendor managed system and RFID as some of the major technologies currently transforming the logistics firms in NMB. The study found that many challenges exist with logistics technology adoption, and cited lack of investment towards logistics technology; the fear of iii losing jobs as people get replaced by technology such as machines and robots; high logistics costs as some of the major challenges. More so, the study results reveal that logistics technology adoption and use play a positive and significant role in logistics firms. The study further reports a significant and positive effect of logistics technology adoption and use on business performance of logistics firms. This study concludes that though still at infancy stage, logistics firms in NMB are keeping upbreast with the current logistics technological trends. The study suggests that firms need to speed up the adoption of the needed logistics technologies available to their respective business in order to remain efficient and effective. , Thesis (MA) --Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Measuring the effectiveness of road Infrastructure support in the OR Tambo Region
- Authors: Malotana, Sinesipho
- Date: 2022-04
- Subjects: Roads -- Maintenance and repair , Municipal services
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57819 , vital:58273
- Description: The term "road infrastructure" refers to the roads and structures that are used to convey commuters and goods. In the numerous road facilities, structures, road classifications, electronic traffic systems, signage, and markings, the mission of road infrastructure is to assist efficiency by providing safety and trouble-free transportation. There are fundamental elements that determine the availability of resources required in society and the efficiency with which they are used to accomplish economic growth. Investment in public capital, such as road infrastructure, which is a major economic engine, is critical because infrastructure helps an economy thrive. The importance of road infrastructure and the major role it plays in economic growth can be seen in studies in developed European nations, New Zealand and the Slovak Republic, where road infrastructure is regarded as a catalyst for economic progress. Investment in public capital, such as road infrastructure, has economic benefits since it acts as the economy's backbone. The Eastern Cape's growth has been acknowledged and included in South Africa's national development strategies and efforts; nonetheless, based on deliverables and results, the province ranks among South Africa's least developed provinces. The Eastern Cape has long been designated by development programmes such as the Spatial Development Initiative (SDI) as an area that will not only generate development and progress for the province, but also for South Africa as a whole. This is sought to be achieved by the Spatial Development Initiative for the Wild-Coast in OR Tambo District Municipality, which states that "integrated sustainable rural development in the context of community, public, and private partnership initiatives.”, p. 2) This research contributes to the goal of research, which includes testing, the identification of causes and consequences, the building of a foundation for future research, and the growth of knowledge (Apuke, 2017, p. 40). The study follows a quantitative research approach and uses two main methodological procedures in order to complete this study; namely a literature review and questionnaire survey. Employees of the South African Department of Transport's National Road Infrastructure implementing agent SANRAL make up the research population in this study. The study concludes that the delivery of an effective road network in the OR v Tambo Region can serve as the base for the establishment of innovative PPP policies, the pillar of socio-economic development and transformation. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Malotana, Sinesipho
- Date: 2022-04
- Subjects: Roads -- Maintenance and repair , Municipal services
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57819 , vital:58273
- Description: The term "road infrastructure" refers to the roads and structures that are used to convey commuters and goods. In the numerous road facilities, structures, road classifications, electronic traffic systems, signage, and markings, the mission of road infrastructure is to assist efficiency by providing safety and trouble-free transportation. There are fundamental elements that determine the availability of resources required in society and the efficiency with which they are used to accomplish economic growth. Investment in public capital, such as road infrastructure, which is a major economic engine, is critical because infrastructure helps an economy thrive. The importance of road infrastructure and the major role it plays in economic growth can be seen in studies in developed European nations, New Zealand and the Slovak Republic, where road infrastructure is regarded as a catalyst for economic progress. Investment in public capital, such as road infrastructure, has economic benefits since it acts as the economy's backbone. The Eastern Cape's growth has been acknowledged and included in South Africa's national development strategies and efforts; nonetheless, based on deliverables and results, the province ranks among South Africa's least developed provinces. The Eastern Cape has long been designated by development programmes such as the Spatial Development Initiative (SDI) as an area that will not only generate development and progress for the province, but also for South Africa as a whole. This is sought to be achieved by the Spatial Development Initiative for the Wild-Coast in OR Tambo District Municipality, which states that "integrated sustainable rural development in the context of community, public, and private partnership initiatives.”, p. 2) This research contributes to the goal of research, which includes testing, the identification of causes and consequences, the building of a foundation for future research, and the growth of knowledge (Apuke, 2017, p. 40). The study follows a quantitative research approach and uses two main methodological procedures in order to complete this study; namely a literature review and questionnaire survey. Employees of the South African Department of Transport's National Road Infrastructure implementing agent SANRAL make up the research population in this study. The study concludes that the delivery of an effective road network in the OR v Tambo Region can serve as the base for the establishment of innovative PPP policies, the pillar of socio-economic development and transformation. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
The impact of financial literacy on financial performance of SMEs in the Nelson Mandela Bay
- Authors: Malgas, Sergio Duncan
- Date: 2022-04
- Subjects: small and medium-zised enterprises , Financial literacy -- Nelson Mandela Bay
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58276 , vital:58888
- Description: In extant literature small and medium-zised enterprises (SMEs) are widely recognized for their contribution to economic development which has led to them being described as the backbone of national economies across the world. Although these are several potential benefits of a healthy SMEs sector, stimulating economic growth through job creation, increased market competition and innovation are among the more the commonly reported benefits. Despite this, SMEs owner-managers, particularly those operating in the South African Market, are faced with several obstacles that impede their success, thus contributing to the high and persistent failure rates among SMEs. When considering that SMEs are often comprised of the owner-manager as the principal decisionmaker, their ability to make decisions are crucial to the sustainability and long term success of their businesses. Against this background, the primary objective of this study is to determine the influence of the owner-managers on the financial performance of SMEs operating in the Nelson Mandela Bay. The failure of SMEs are often attributed to the prevalence of financial literacy among owner-managers. While broadly cited in extant literature, few studies have focused on financial literacy from the perspective of small business. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text: false
- Date Issued: 2022-04
- Authors: Malgas, Sergio Duncan
- Date: 2022-04
- Subjects: small and medium-zised enterprises , Financial literacy -- Nelson Mandela Bay
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58276 , vital:58888
- Description: In extant literature small and medium-zised enterprises (SMEs) are widely recognized for their contribution to economic development which has led to them being described as the backbone of national economies across the world. Although these are several potential benefits of a healthy SMEs sector, stimulating economic growth through job creation, increased market competition and innovation are among the more the commonly reported benefits. Despite this, SMEs owner-managers, particularly those operating in the South African Market, are faced with several obstacles that impede their success, thus contributing to the high and persistent failure rates among SMEs. When considering that SMEs are often comprised of the owner-manager as the principal decisionmaker, their ability to make decisions are crucial to the sustainability and long term success of their businesses. Against this background, the primary objective of this study is to determine the influence of the owner-managers on the financial performance of SMEs operating in the Nelson Mandela Bay. The failure of SMEs are often attributed to the prevalence of financial literacy among owner-managers. While broadly cited in extant literature, few studies have focused on financial literacy from the perspective of small business. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text: false
- Date Issued: 2022-04
Climate Change and Rural Livelihoods: A Case of Insiza District, Matabeleland
- Authors: Nyoni, Sibusisiwe Ruth
- Date: 2022-04
- Subjects: Climatic change -- Zimbabwe
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58112 , vital:58579
- Description: Owen Jones’ famous article “Why don’t we treat climate change with the same urgency as Coronavirus” puts forward an intriguing dimension to the climate change phenomenon. Despite the threat it presents to millions of people as well as the world economy, little has been done to prevent countries from being overwhelmed by its effects. Due to the fact that climate change is happening now, the purpose of this study provides insight into climate change and rural livelihoods in Insiza district, Matabeleland. In this study, an interpretivist paradigm was adopted as it gave the researcher adequate information that embodies an account of the participants’ understanding of livelihood assets. The qualitative research approach was adopted as it allowed the researcher to classify the findings into broad themes in order to tell a story. Farmers in Insiza district who depend on agriculture for subsistence were interviewed to provide insight into this phenomenon. The findings of the study revealed that climate stresses, non-climate stresses as well as institutional constraints together contribute to the vulnerability of farmers. Additionally, the findings unveiled that the inconsistent weather patterns as well as the recurrent droughts in the area have pushed most farmers to find alternative means of livelihood. Therefore, farmers over time have resorted to other self-taught means of making a living such as building, small scale mining, buying and selling of clothing items, running grocery stores, baking, owning backyard vegetable gardens, welding, fishing, selling firewood and growing chickens for sale. On the same note the findings showed that farmers in Insiza district employ different coping strategies in attempting to deal with climate change. The most common method in the area of study is conservation farming which has to do with digging pits to store water. More so, the findings displayed that NGOs have been of great assistance in equipping farmers at such a time as this. The study recommends that the government needs to ensure financial and institutional mechanisms to assist the Insiza community. Also, the NGOs must continue to support the communities through equipping them to diversify their portfolios and through developing tailor made capacity building programmes. To the farmers it is recommended that they continue to move in unity and form relationships with other farmers from other districts and provinces so that they can continue to share information. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Nyoni, Sibusisiwe Ruth
- Date: 2022-04
- Subjects: Climatic change -- Zimbabwe
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/58112 , vital:58579
- Description: Owen Jones’ famous article “Why don’t we treat climate change with the same urgency as Coronavirus” puts forward an intriguing dimension to the climate change phenomenon. Despite the threat it presents to millions of people as well as the world economy, little has been done to prevent countries from being overwhelmed by its effects. Due to the fact that climate change is happening now, the purpose of this study provides insight into climate change and rural livelihoods in Insiza district, Matabeleland. In this study, an interpretivist paradigm was adopted as it gave the researcher adequate information that embodies an account of the participants’ understanding of livelihood assets. The qualitative research approach was adopted as it allowed the researcher to classify the findings into broad themes in order to tell a story. Farmers in Insiza district who depend on agriculture for subsistence were interviewed to provide insight into this phenomenon. The findings of the study revealed that climate stresses, non-climate stresses as well as institutional constraints together contribute to the vulnerability of farmers. Additionally, the findings unveiled that the inconsistent weather patterns as well as the recurrent droughts in the area have pushed most farmers to find alternative means of livelihood. Therefore, farmers over time have resorted to other self-taught means of making a living such as building, small scale mining, buying and selling of clothing items, running grocery stores, baking, owning backyard vegetable gardens, welding, fishing, selling firewood and growing chickens for sale. On the same note the findings showed that farmers in Insiza district employ different coping strategies in attempting to deal with climate change. The most common method in the area of study is conservation farming which has to do with digging pits to store water. More so, the findings displayed that NGOs have been of great assistance in equipping farmers at such a time as this. The study recommends that the government needs to ensure financial and institutional mechanisms to assist the Insiza community. Also, the NGOs must continue to support the communities through equipping them to diversify their portfolios and through developing tailor made capacity building programmes. To the farmers it is recommended that they continue to move in unity and form relationships with other farmers from other districts and provinces so that they can continue to share information. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Recruitment disruptors: an exploratory study on the perception of artificial intelligence amongst selected Eastern Cape Province recruiters
- Authors: Sobekwa, Sinazo
- Date: 2022-04
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/232238 , vital:49974
- Description: Thesis (MA) -- Faculty of Humanities, Psychology, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Sobekwa, Sinazo
- Date: 2022-04
- Subjects: Uncatalogued
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/232238 , vital:49974
- Description: Thesis (MA) -- Faculty of Humanities, Psychology, 2022
- Full Text:
- Date Issued: 2022-04
An assessment of broadband infrastructure investment as a primer for inclusive growth in South Africa
- Authors: Dhlamini, James Tapiwa
- Date: 2022-04
- Subjects: Investment -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57623 , vital:58187
- Description: This study investigated the impact in the telecommunication and broadband sectors on growth, employment creation, and poverty alleviation. It employs micro-simulation techniques and an economy-wide Leontief-based social accounting matric multiplier model to assess empirically the influence that fiscal injection into these sectors has in achieving South Africa's macroeconomic objectives. The study found positive but declining trends in output multipliers in the telecommunication sector over the past recession period (2009-18), signifying the enervation of the intersectoral multiplier effect over the post-recession period. Fiscal injection into the telecommunication and broadband sectors led to poverty reduction and to job creation in South Africa. However, the overall findings of this study highlight gender biases, spatial imbalances between urban and non-urban, an age gulf between young people and adults and further imbalance between formal and informal employment. The study commends that the government follows a priorities- weighted state spending policy which concurrently targets projects generating high gross value added and employment multipliers and with high capacity to address the disparity caused by the legacy of aparthied , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text: false
- Date Issued: 2022-04
- Authors: Dhlamini, James Tapiwa
- Date: 2022-04
- Subjects: Investment -- South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10948/57623 , vital:58187
- Description: This study investigated the impact in the telecommunication and broadband sectors on growth, employment creation, and poverty alleviation. It employs micro-simulation techniques and an economy-wide Leontief-based social accounting matric multiplier model to assess empirically the influence that fiscal injection into these sectors has in achieving South Africa's macroeconomic objectives. The study found positive but declining trends in output multipliers in the telecommunication sector over the past recession period (2009-18), signifying the enervation of the intersectoral multiplier effect over the post-recession period. Fiscal injection into the telecommunication and broadband sectors led to poverty reduction and to job creation in South Africa. However, the overall findings of this study highlight gender biases, spatial imbalances between urban and non-urban, an age gulf between young people and adults and further imbalance between formal and informal employment. The study commends that the government follows a priorities- weighted state spending policy which concurrently targets projects generating high gross value added and employment multipliers and with high capacity to address the disparity caused by the legacy of aparthied , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text: false
- Date Issued: 2022-04
Effect of pomegranate (Punica granatum L) peel powder meal on growth performance, gut integrity, haemato-biochemical indices, meat, and bone quality of broiler chickens
- Akuru, Eunice Amaka https://orcid.org/0000-0002-3093-0247
- Authors: Akuru, Eunice Amaka https://orcid.org/0000-0002-3093-0247
- Date: 2022-04
- Subjects: Broilers (Chickens) , Meat -- Quality
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/23611 , vital:58218
- Description: The objective of the current study was to investigate the overall response of broiler birds to varying dietary levels of pomegranate (Punica granatum L) peel powder meal (PPPM). A total of 432-day-old Cobb 500 broiler chicks were randomly divided into six experimental groups of four replications with 18 birds per replicate in a completely randomized design (CRD). The birds were fed isonitrogenous and isocaloric experimental diets designated as: T1-control diet with 0percent additives (negative control; NEGCON); T2- control diet supplemented with α-tocopherol acetate at 200g per ton (positive control; POSCON): T3, T4, T5 and T6-control diet supplemented with 2, 4, 6 and 8g/kg PPPM (PPPM2, PPPM4, PPPM6, PPPM8). The phytochemical, nutritional and antioxidant properties of the pomegranate peel powder were determined. Results showed that the South African-grown pomegranate peel (“Wonderful” variety) had rich protein and trace mineral contents. Higher (p < 0.05) antioxidant and hepatic anti-lipid peroxidative activities were recorded in the ethanol and acetone extracts than the water extract, whereas the three extracts had no toxic effects on liver and kidney cells (p > 0.05). The dietary effects of PPPM supplementation on growth performance, digestibility, carcass, and organ weight indices of Cobb 500 birds were determined. The POSCON diet enhanced (p < 0.05) feed conversion ratio (FCR) at week 3. The average final body weight and average daily weight gain were highest (p < 0.05) in birds fed PPPM2 and PPPM4 diets, whereas birds fed PPPM2 diet had enhanced (p < 0.05) FCR and protein efficiency ratio when compared with birds on POSCON. Thigh and breast weights were highest (p < 0.05) in birds on PPPM4 and PPPM8 diets, whereas birds fed PPPM4 diet had enhanced (p < 0.05) nutrient digestibility compared with those on POSCON. The antioxidant status and breast meat quality of Cobb 500 broiler birds fed diets supplemented with PPPM were determined. Meat from birds fed PPPM8 diet had the highest (p < 0.05) thawing loss, while cooking loss was lowest (p < 0.05) in the PPPM2 group. The highest (p < 0.05) ability to scavenge ABTS [(2, 2-azinobis (3ethylbenzothiazoline-6 sulfonic acid))] radical cation (ABTS+) was recorded in the PPPM2 and PPPM4 meat while PPPM8 meat had increased (p < 0.05) catalase activity. The fatty acid composition, oxidative status, and drip loss in breast meat of Cobb 500 broiler birds fed graded levels of PPPM was determined. Meat from birds fed PPPM4 diet had the lowest (p < 0.05) margaric (C17:0) and arachidic (C20:0) acids, while meat from birds fed PPPM8 diet had higher (p < 0.05) levels of eicosadenoic (C20:2, n-6) and arachidonic (AA, 20:4) acids. The POSCON had higher (p < 0.05) ability to reduce TBARS levels in meat on day-1 and day-16 of storage than the NEGCON and PPPM diets, whereas TBARS levels were lowest (p < 0.05) in PPPM6 meat on day-16. The gut pH, histology, haematology, serum-biochemical indices, and bone quality parameters of Cobb 500 broiler birds fed diets supplemented with PPPM was determined. Birds fed POSCON, PPM2 and PPPM4 diets had the lowest (p < 0.05) pH in the duodenum, jejunum, and caecum, whereas duodenal pH values were lowest (p < 0.05) in birds fed PPPM2 and PPPM4 diets compared with birds on NEGCON. Birds fed PPPM4 diet had the highest (p < 0.01) duodenal, jejunal and ileal villi height (VH), and the highest (p < 0.01) VH to crypt depth (CD) ratio in the duodenum, jejunum, and ileum. The lowest (p < 0.05) CD in the duodenum, jejunum and ileum was also recorded in birds fed PPPM4 diet. Birds fed PPPM8 diet had higher (p < 0.05) values for white blood cell count, red blood cell count, haemoglobin concentration and packed cell volume, whereas the lowest (p < 0.05) concentration of serum aspartate transaminase was recorded in birds fed PPPM4 diet. Birds on PPM4 diet had longer (p < 0.05) bones. Bone weight and bone breaking strength were highest (p < 0.05) in birds fed PPPM8 diet. Tibia zinc and iron concentrations increased as the inclusion levels of pomegranate peel powder meal increased. It was concluded that broiler birds require 4 g/kg pomegranate peel powder for enhanced growth performance, nutrient digestibility, gut histology, quality, and antioxidant enzyme activity of meat, whereas 8 g/kg pomegranate peel powder meal supplementation is required for enhanced heamato-biochemical indices, bone quality, fatty acid composition and lipid peroxidative parameters in broiler birds. , Thesis (PhD) -- Faculty of Science and Agriculture, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Akuru, Eunice Amaka https://orcid.org/0000-0002-3093-0247
- Date: 2022-04
- Subjects: Broilers (Chickens) , Meat -- Quality
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10353/23611 , vital:58218
- Description: The objective of the current study was to investigate the overall response of broiler birds to varying dietary levels of pomegranate (Punica granatum L) peel powder meal (PPPM). A total of 432-day-old Cobb 500 broiler chicks were randomly divided into six experimental groups of four replications with 18 birds per replicate in a completely randomized design (CRD). The birds were fed isonitrogenous and isocaloric experimental diets designated as: T1-control diet with 0percent additives (negative control; NEGCON); T2- control diet supplemented with α-tocopherol acetate at 200g per ton (positive control; POSCON): T3, T4, T5 and T6-control diet supplemented with 2, 4, 6 and 8g/kg PPPM (PPPM2, PPPM4, PPPM6, PPPM8). The phytochemical, nutritional and antioxidant properties of the pomegranate peel powder were determined. Results showed that the South African-grown pomegranate peel (“Wonderful” variety) had rich protein and trace mineral contents. Higher (p < 0.05) antioxidant and hepatic anti-lipid peroxidative activities were recorded in the ethanol and acetone extracts than the water extract, whereas the three extracts had no toxic effects on liver and kidney cells (p > 0.05). The dietary effects of PPPM supplementation on growth performance, digestibility, carcass, and organ weight indices of Cobb 500 birds were determined. The POSCON diet enhanced (p < 0.05) feed conversion ratio (FCR) at week 3. The average final body weight and average daily weight gain were highest (p < 0.05) in birds fed PPPM2 and PPPM4 diets, whereas birds fed PPPM2 diet had enhanced (p < 0.05) FCR and protein efficiency ratio when compared with birds on POSCON. Thigh and breast weights were highest (p < 0.05) in birds on PPPM4 and PPPM8 diets, whereas birds fed PPPM4 diet had enhanced (p < 0.05) nutrient digestibility compared with those on POSCON. The antioxidant status and breast meat quality of Cobb 500 broiler birds fed diets supplemented with PPPM were determined. Meat from birds fed PPPM8 diet had the highest (p < 0.05) thawing loss, while cooking loss was lowest (p < 0.05) in the PPPM2 group. The highest (p < 0.05) ability to scavenge ABTS [(2, 2-azinobis (3ethylbenzothiazoline-6 sulfonic acid))] radical cation (ABTS+) was recorded in the PPPM2 and PPPM4 meat while PPPM8 meat had increased (p < 0.05) catalase activity. The fatty acid composition, oxidative status, and drip loss in breast meat of Cobb 500 broiler birds fed graded levels of PPPM was determined. Meat from birds fed PPPM4 diet had the lowest (p < 0.05) margaric (C17:0) and arachidic (C20:0) acids, while meat from birds fed PPPM8 diet had higher (p < 0.05) levels of eicosadenoic (C20:2, n-6) and arachidonic (AA, 20:4) acids. The POSCON had higher (p < 0.05) ability to reduce TBARS levels in meat on day-1 and day-16 of storage than the NEGCON and PPPM diets, whereas TBARS levels were lowest (p < 0.05) in PPPM6 meat on day-16. The gut pH, histology, haematology, serum-biochemical indices, and bone quality parameters of Cobb 500 broiler birds fed diets supplemented with PPPM was determined. Birds fed POSCON, PPM2 and PPPM4 diets had the lowest (p < 0.05) pH in the duodenum, jejunum, and caecum, whereas duodenal pH values were lowest (p < 0.05) in birds fed PPPM2 and PPPM4 diets compared with birds on NEGCON. Birds fed PPPM4 diet had the highest (p < 0.01) duodenal, jejunal and ileal villi height (VH), and the highest (p < 0.01) VH to crypt depth (CD) ratio in the duodenum, jejunum, and ileum. The lowest (p < 0.05) CD in the duodenum, jejunum and ileum was also recorded in birds fed PPPM4 diet. Birds fed PPPM8 diet had higher (p < 0.05) values for white blood cell count, red blood cell count, haemoglobin concentration and packed cell volume, whereas the lowest (p < 0.05) concentration of serum aspartate transaminase was recorded in birds fed PPPM4 diet. Birds on PPM4 diet had longer (p < 0.05) bones. Bone weight and bone breaking strength were highest (p < 0.05) in birds fed PPPM8 diet. Tibia zinc and iron concentrations increased as the inclusion levels of pomegranate peel powder meal increased. It was concluded that broiler birds require 4 g/kg pomegranate peel powder for enhanced growth performance, nutrient digestibility, gut histology, quality, and antioxidant enzyme activity of meat, whereas 8 g/kg pomegranate peel powder meal supplementation is required for enhanced heamato-biochemical indices, bone quality, fatty acid composition and lipid peroxidative parameters in broiler birds. , Thesis (PhD) -- Faculty of Science and Agriculture, 2022
- Full Text:
- Date Issued: 2022-04
A case study assessment of the ecological and social status of the South African boat-based whale watching industry
- Authors: Tolsma, Minke
- Date: 2022-04
- Subjects: Whale watching --South Africa , Dolphin watching
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/55887 , vital:54397
- Description: Boat-based whale-watching (BBWW) is a rapidly growing marine tourism industry globally and in South Africa (SA). BBWW in SA was established in 1998, and since then the number of permits available has doubled from 20 to 40. However, the establishment and past growth of the industry was undertaken without ecological research or impact assessments. Global research has shown that BBWW has the potential to cause short-term changes in cetacean behaviour and movement, which in turn can have long-term population-level consequences. National policies to grow ocean economies in SA may encourage excessive growth in the BBWW industry, impacting the ecological sustainability. In the absence of long-term impact data, the BBWW industry should be managed to minimise short-term changes. This study aimed to determine the social and ecological status of the SA BBWW industry, using Plettenberg Bay as a case study, to inform its long term sustainability. To achieve this aim: 1) the short-term behavioural and movement responses of six cetacean species to encounters with commercial BBWW vessels were measured; 2) the efficacy of three permit regulations (approach speed, approach angle, and encounter duration) to prevent short-term behavioural changes in three cetacean species was measured; 3) rates of compliance of BBWWoperators with current regulations were recorded; 4) BBWW tourists’ expectations of and satisfaction with the industry were investigated; as well as 5) operators’ views on the current permit regulations of the industry All research was conducted between September 2018 and November 2020 in Plettenberg Bay (SA) where two BBWW companies operating two vessels each are active. Three dolphin (bottlenose, common and humpback dolphins) and three whale (Bryde’s, humpback and southern right whales) species are targeted by the industry, and were encountered during this study. , Thesis (PhD) -- Faculty of Science, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Tolsma, Minke
- Date: 2022-04
- Subjects: Whale watching --South Africa , Dolphin watching
- Language: English
- Type: Doctoral theses , text
- Identifier: http://hdl.handle.net/10948/55887 , vital:54397
- Description: Boat-based whale-watching (BBWW) is a rapidly growing marine tourism industry globally and in South Africa (SA). BBWW in SA was established in 1998, and since then the number of permits available has doubled from 20 to 40. However, the establishment and past growth of the industry was undertaken without ecological research or impact assessments. Global research has shown that BBWW has the potential to cause short-term changes in cetacean behaviour and movement, which in turn can have long-term population-level consequences. National policies to grow ocean economies in SA may encourage excessive growth in the BBWW industry, impacting the ecological sustainability. In the absence of long-term impact data, the BBWW industry should be managed to minimise short-term changes. This study aimed to determine the social and ecological status of the SA BBWW industry, using Plettenberg Bay as a case study, to inform its long term sustainability. To achieve this aim: 1) the short-term behavioural and movement responses of six cetacean species to encounters with commercial BBWW vessels were measured; 2) the efficacy of three permit regulations (approach speed, approach angle, and encounter duration) to prevent short-term behavioural changes in three cetacean species was measured; 3) rates of compliance of BBWWoperators with current regulations were recorded; 4) BBWW tourists’ expectations of and satisfaction with the industry were investigated; as well as 5) operators’ views on the current permit regulations of the industry All research was conducted between September 2018 and November 2020 in Plettenberg Bay (SA) where two BBWW companies operating two vessels each are active. Three dolphin (bottlenose, common and humpback dolphins) and three whale (Bryde’s, humpback and southern right whales) species are targeted by the industry, and were encountered during this study. , Thesis (PhD) -- Faculty of Science, School of Environmental Sciences, 2022
- Full Text:
- Date Issued: 2022-04
An ICT framework to support a patient-centric approach in public healthcare : A case study of Malawi
- Authors: Pankomera, Richard
- Date: 2022-04
- Subjects: Technological innovations -- Malawi
- Language: English
- Type: Doctor's theses , text
- Identifier: http://hdl.handle.net/10948/58462 , vital:59285
- Description: The proliferation of Information and Communication Technologies (ICTs) worldwide has enhanced the amelioration of the quality of healthcare services. There is evidence that the adoption of electronic health (e-health) and mobile health (m-health) technologies has transformed the healthcare domain by improving the efficiency of healthcare service delivery. Digitising health ecosystems has culminated in increased access to healthcare services, even for remote rural areas. The application of ICTs in the healthcare sector has reduced the overall costs of healthcare services. However, developing countries, such as Malawi, face a plethora of challenges in implementing ICT initiatives in the public health sector. Although Malawi deploys several e-health systems, most are fragmented and, therefore, not interoperable. In addition, many m-health interventions are still in the pilot phase, and the Government does not manage them centrally. These challenges are further exacerbated by a lack of appropriate policy and regulatory framework, insufficient human capacity and development, inadequate financial resources, and poor ICT governance in the public healthcare sector. Furthermore, the current provider-centred approach to healthcare service delivery does not fully meet the needs of health consumers. It is, therefore, not surprising that the dearth of an ICT framework for patient-centric healthcare services has made coordination and management of ICT interventions less sustainable, less health consumer-centric and less cost-effective. Unlike the provider-centred approach, patient-centric healthcare empowers health consumers with health information to control their own health and well-being. A patient-centric healthcare approach provides treatment and care to health consumers based on their preferences, values, and beliefs. It is, therefore, cost-effective as it takes a preventive approach rather than a curative one. An ICT framework is proposed to support patient-centric healthcare services in the public healthcare sector in Malawi. A comprehensive literature review and analysis was succinctly conducted to gain an understanding of the Malawi health landscape and patient healthcare approaches. Semi-structured interviews were also undertaken to solicit information from various key v stakeholders such as policymakers, software developers, health consumers, and healthcare providers. Design science research paradigm coupled with pragmatism was then followed to develop the ICT framework, which will ultimately support patient-centric healthcare services in the public sector in Malawi. This methodology assists in solving social problems in a specific context by providing technology-based solutions in the form of an artefact. Experts in various disciplines domiciled in Malawi validated the ICT framework, as an artefact, for its relevance and applicability. The results showed that the framework is appropriate and relevant in the public healthcare sector in Malawi. This study contributes to design science research methodology as it addressed the improvement quadrant described by Gregor and Hevner. It also contributes to the existing body of knowledge by providing a design science artefact in the form of an ICT framework. It is envisaged that the proposed ICT framework will assist the Ministry of Health and other key stakeholders in providing quality patient-centric healthcare services in the public healthcare in Malawi. , Thesis (PhD) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
An ICT framework to support a patient-centric approach in public healthcare : A case study of Malawi
- Authors: Pankomera, Richard
- Date: 2022-04
- Subjects: Technological innovations -- Malawi
- Language: English
- Type: Doctor's theses , text
- Identifier: http://hdl.handle.net/10948/58462 , vital:59285
- Description: The proliferation of Information and Communication Technologies (ICTs) worldwide has enhanced the amelioration of the quality of healthcare services. There is evidence that the adoption of electronic health (e-health) and mobile health (m-health) technologies has transformed the healthcare domain by improving the efficiency of healthcare service delivery. Digitising health ecosystems has culminated in increased access to healthcare services, even for remote rural areas. The application of ICTs in the healthcare sector has reduced the overall costs of healthcare services. However, developing countries, such as Malawi, face a plethora of challenges in implementing ICT initiatives in the public health sector. Although Malawi deploys several e-health systems, most are fragmented and, therefore, not interoperable. In addition, many m-health interventions are still in the pilot phase, and the Government does not manage them centrally. These challenges are further exacerbated by a lack of appropriate policy and regulatory framework, insufficient human capacity and development, inadequate financial resources, and poor ICT governance in the public healthcare sector. Furthermore, the current provider-centred approach to healthcare service delivery does not fully meet the needs of health consumers. It is, therefore, not surprising that the dearth of an ICT framework for patient-centric healthcare services has made coordination and management of ICT interventions less sustainable, less health consumer-centric and less cost-effective. Unlike the provider-centred approach, patient-centric healthcare empowers health consumers with health information to control their own health and well-being. A patient-centric healthcare approach provides treatment and care to health consumers based on their preferences, values, and beliefs. It is, therefore, cost-effective as it takes a preventive approach rather than a curative one. An ICT framework is proposed to support patient-centric healthcare services in the public healthcare sector in Malawi. A comprehensive literature review and analysis was succinctly conducted to gain an understanding of the Malawi health landscape and patient healthcare approaches. Semi-structured interviews were also undertaken to solicit information from various key v stakeholders such as policymakers, software developers, health consumers, and healthcare providers. Design science research paradigm coupled with pragmatism was then followed to develop the ICT framework, which will ultimately support patient-centric healthcare services in the public sector in Malawi. This methodology assists in solving social problems in a specific context by providing technology-based solutions in the form of an artefact. Experts in various disciplines domiciled in Malawi validated the ICT framework, as an artefact, for its relevance and applicability. The results showed that the framework is appropriate and relevant in the public healthcare sector in Malawi. This study contributes to design science research methodology as it addressed the improvement quadrant described by Gregor and Hevner. It also contributes to the existing body of knowledge by providing a design science artefact in the form of an ICT framework. It is envisaged that the proposed ICT framework will assist the Ministry of Health and other key stakeholders in providing quality patient-centric healthcare services in the public healthcare in Malawi. , Thesis (PhD) -- Faculty of Engineering, the Built Environment, and Technology, 2022
- Full Text:
- Date Issued: 2022-04
Credit risk management impact on loan performance in development finance institutions in South Africa
- Lekhelebana, Letlatsa George
- Authors: Lekhelebana, Letlatsa George
- Date: 2022-04
- Subjects: Development finance institutions , Credit -- Management -- South Africa
- Language: English
- Type: Doctoral's theses , text
- Identifier: http://hdl.handle.net/10948/57698 , vital:58217
- Description: Development Finance Institutions ( play an important role in being a catalyst for economic development and growth where they operate. TUHF Group operates as a niche commercial property D FI funding entrepreneurs that seek to bring to market properties that deliver multi let housing units. This also deals with the pro blem of the lack of housing that South Africa has. For DFIs to operate optimally and be financially sustainable , they need to source funding from either shareholders or the financial markets. Financial markets require that the DFIs operate in a profitable manner to qualify for funding and this is also driven by the way the DFI manages the loan book’s integrity. This study examines the relationship between credit risk management policy, processes and procedures in practice and the TUHF Group and their impa ct on the performance of the loan book. In order that the research aim and objectives are fulfilled, and the research question answered, the study undertook an extensive review of existing literature on DFIs, the impact on economic development and growt h, the impact of badly performing loan books on the performance of companies and how this is impacted on by credit management structures, policies and procedures. An empirical study was conducted through the collection of primary data from the internal doc uments at TUHF Group and among some of the staff members at TUHF through a structured interviews based on open ended questions. The research revealed that there is indeed a link between the credit risk management processes and procedures at TUHF and the performance of the loan book, the findings indicated that the current policy and procedures is not sufficient for a well performing loan book and the pr imary data showed worsening performance of the loan book over time. These findings further indicate a requirement for TUHF to improve the credit policies and architecture for a sustainable financial performance in future. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Lekhelebana, Letlatsa George
- Date: 2022-04
- Subjects: Development finance institutions , Credit -- Management -- South Africa
- Language: English
- Type: Doctoral's theses , text
- Identifier: http://hdl.handle.net/10948/57698 , vital:58217
- Description: Development Finance Institutions ( play an important role in being a catalyst for economic development and growth where they operate. TUHF Group operates as a niche commercial property D FI funding entrepreneurs that seek to bring to market properties that deliver multi let housing units. This also deals with the pro blem of the lack of housing that South Africa has. For DFIs to operate optimally and be financially sustainable , they need to source funding from either shareholders or the financial markets. Financial markets require that the DFIs operate in a profitable manner to qualify for funding and this is also driven by the way the DFI manages the loan book’s integrity. This study examines the relationship between credit risk management policy, processes and procedures in practice and the TUHF Group and their impa ct on the performance of the loan book. In order that the research aim and objectives are fulfilled, and the research question answered, the study undertook an extensive review of existing literature on DFIs, the impact on economic development and growt h, the impact of badly performing loan books on the performance of companies and how this is impacted on by credit management structures, policies and procedures. An empirical study was conducted through the collection of primary data from the internal doc uments at TUHF Group and among some of the staff members at TUHF through a structured interviews based on open ended questions. The research revealed that there is indeed a link between the credit risk management processes and procedures at TUHF and the performance of the loan book, the findings indicated that the current policy and procedures is not sufficient for a well performing loan book and the pr imary data showed worsening performance of the loan book over time. These findings further indicate a requirement for TUHF to improve the credit policies and architecture for a sustainable financial performance in future. , Thesis (MA) -- Faculty of Business and Economic science, 2022
- Full Text:
- Date Issued: 2022-04
Household food waste generation, disposal and minimisation in two South African towns
- Authors: Mtakati, Sinako
- Date: 2022-04
- Subjects: Food waste South Africa Cradock , Food waste South Africa Middelburg (Eastern Cape) , Sanitary landfills Environmental aspects South Africa , Greenhouse gases Environmental aspects South Africa , Income distribution South Africa , Socio-economic status South Africa , Waste minimization South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/232159 , vital:49967
- Description: Food waste is becoming an important issue considering greenhouse gas emissions from landfills. However, data on the quantities of food disposed remains limited, especially for developing, countries including South Africa. Global food waste estimates suggest that households in developed countries waste more food than those in developing countries. Further, research shows that lack of food waste management impacts negatively on the global efforts to combat food waste generation. I therefore set out to present primary data relating to household food waste generation and minimisation within a South African context. The case study covers two towns in the Eastern Cape province, namely Cradock and Middelburg, with a combined population of 55 352 people. Household food waste assessment and quantification was undertaken using two methods, 1) questionnaires to explore quantities of different types of food wasted by households, and 2) kitchen scales to measure the amounts of food discarded by households. Participating households in each suburb were selected randomly. Differences in shopping and household food waste behaviour in households from different income suburbs is vital to understand as it sets an effective approach to food waste interventions that might have a positive impact in minimising food waste generation. In this thesis, differences in shopping and household food waste behaviour across households in the affluent, middle and low-income suburbs is uncovered. A questionnaire was conducted and households in the affluent suburbs purchased food more frequently and had the highest percentage of respondents that used shopping list when buying food than those in the middle and low-income suburbs. The thesis also indicates that households in the low-income suburbs were more attracted to food special offers and had a higher proportion of respondents who could not distinguish between “Use by” and “Best before” dates than those in the affluent and middle- income suburbs. The reasons to food waste generation overlap between the towns. However, between the suburbs, the respondents from households in the affluent suburbs pointed that they were mainly generating and disposing food waste because they did not think it is an issue. Excessive cooking and food expiring before being consumed were found to be the most common reasons for food waste generation and disposal among households in the low and middle-income suburbs. The times which households are likely to generate more food waste were investigated. Nonetheless, only a few households indicated that there were times that they generated and disposed more food in the bins. The most cited times in the affluent suburbs were during Christmas (54%) and in summer (41%). Festive season (65%) and traditional ceremonies (37%) were the most cited times in the middle-income suburbs, while festive season (46%) and the summer season (36%) were the most cites among households in the low- income suburbs. The dimensions of shopping and household food waste behaviour is reflected in the types and quantities of food waste generated. The results reveal that vegetables were the most wasted food type in Cradock (26%) and in Middelburg (30%), while tinned food and dairy were the least discarded food types in both study towns with no significant differences in proportions of households discarding all six food types. One of the key results is that the average self-reported and weighed food waste generated per capita per annum for the two towns was 23.40±47.20 and 202.60±128.30 kg/capita/year, respectively as compared to the estimated 6-11 kg per annum in sub-Saharan Africa and South and Southeast Asia. Between the towns, Cradock generated more food waste (5.05±2.68 kg) than those in Middleburg (3.84±2.59 kg) in the previous 48 hours. It was also evident that each household and each person in Cradock generated more food waste at breakfast and the least at lunch, while in Middelburg the highest average amount of food waste generated was observed at supper and the least at lunch. The results indicate that household size and employment status were negatively correlated to food waste generation, while wealth status and gender were positively correlated to food waste generation. Majority of households (74% in Cradock and 73% in Middelburg) had no household food waste minimisation strategies implemented. The most cited strategies in place were cooking less frequently, cooking small portions and chopping and freezing vegetables as an anti-food waste strategy. Worth noting is that the small proportion of households with strategies in place are faced with a challenge of some household members showing unwillingness to effectively implement the strategies. The results also reveal that children wasted more food than adults, particularly girls. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2022
- Full Text:
- Date Issued: 2022-04
- Authors: Mtakati, Sinako
- Date: 2022-04
- Subjects: Food waste South Africa Cradock , Food waste South Africa Middelburg (Eastern Cape) , Sanitary landfills Environmental aspects South Africa , Greenhouse gases Environmental aspects South Africa , Income distribution South Africa , Socio-economic status South Africa , Waste minimization South Africa
- Language: English
- Type: Master's theses , text
- Identifier: http://hdl.handle.net/10962/232159 , vital:49967
- Description: Food waste is becoming an important issue considering greenhouse gas emissions from landfills. However, data on the quantities of food disposed remains limited, especially for developing, countries including South Africa. Global food waste estimates suggest that households in developed countries waste more food than those in developing countries. Further, research shows that lack of food waste management impacts negatively on the global efforts to combat food waste generation. I therefore set out to present primary data relating to household food waste generation and minimisation within a South African context. The case study covers two towns in the Eastern Cape province, namely Cradock and Middelburg, with a combined population of 55 352 people. Household food waste assessment and quantification was undertaken using two methods, 1) questionnaires to explore quantities of different types of food wasted by households, and 2) kitchen scales to measure the amounts of food discarded by households. Participating households in each suburb were selected randomly. Differences in shopping and household food waste behaviour in households from different income suburbs is vital to understand as it sets an effective approach to food waste interventions that might have a positive impact in minimising food waste generation. In this thesis, differences in shopping and household food waste behaviour across households in the affluent, middle and low-income suburbs is uncovered. A questionnaire was conducted and households in the affluent suburbs purchased food more frequently and had the highest percentage of respondents that used shopping list when buying food than those in the middle and low-income suburbs. The thesis also indicates that households in the low-income suburbs were more attracted to food special offers and had a higher proportion of respondents who could not distinguish between “Use by” and “Best before” dates than those in the affluent and middle- income suburbs. The reasons to food waste generation overlap between the towns. However, between the suburbs, the respondents from households in the affluent suburbs pointed that they were mainly generating and disposing food waste because they did not think it is an issue. Excessive cooking and food expiring before being consumed were found to be the most common reasons for food waste generation and disposal among households in the low and middle-income suburbs. The times which households are likely to generate more food waste were investigated. Nonetheless, only a few households indicated that there were times that they generated and disposed more food in the bins. The most cited times in the affluent suburbs were during Christmas (54%) and in summer (41%). Festive season (65%) and traditional ceremonies (37%) were the most cited times in the middle-income suburbs, while festive season (46%) and the summer season (36%) were the most cites among households in the low- income suburbs. The dimensions of shopping and household food waste behaviour is reflected in the types and quantities of food waste generated. The results reveal that vegetables were the most wasted food type in Cradock (26%) and in Middelburg (30%), while tinned food and dairy were the least discarded food types in both study towns with no significant differences in proportions of households discarding all six food types. One of the key results is that the average self-reported and weighed food waste generated per capita per annum for the two towns was 23.40±47.20 and 202.60±128.30 kg/capita/year, respectively as compared to the estimated 6-11 kg per annum in sub-Saharan Africa and South and Southeast Asia. Between the towns, Cradock generated more food waste (5.05±2.68 kg) than those in Middleburg (3.84±2.59 kg) in the previous 48 hours. It was also evident that each household and each person in Cradock generated more food waste at breakfast and the least at lunch, while in Middelburg the highest average amount of food waste generated was observed at supper and the least at lunch. The results indicate that household size and employment status were negatively correlated to food waste generation, while wealth status and gender were positively correlated to food waste generation. Majority of households (74% in Cradock and 73% in Middelburg) had no household food waste minimisation strategies implemented. The most cited strategies in place were cooking less frequently, cooking small portions and chopping and freezing vegetables as an anti-food waste strategy. Worth noting is that the small proportion of households with strategies in place are faced with a challenge of some household members showing unwillingness to effectively implement the strategies. The results also reveal that children wasted more food than adults, particularly girls. , Thesis (MSc) -- Faculty of Science, Environmental Science, 2022
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- Date Issued: 2022-04