The relationship between servant leadership, workplace trust, work engagement and workplace wellbeing
- Authors: Barnard, Patrick Christian
- Date: 2017
- Subjects: Work environment -- Psychological aspects Organizational behavior , Psychology, Industrial Leadership
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/14532 , vital:27740
- Description: Globalization has had a profound impact on the business environment of organizations and on the lives of employees in most countries. Previously sheltered markets were suddenly opened up to intense international competition. Organizations had to improve the efficient and effective utilization of resources to retain and gain market shares. Even organizations which are still prospering today in the face of serious competition, cannot be sure of continued success in the next financial year. Astute owners and managers are acutely aware of the need to continually and consciously seek the competitive edge for their businesses. Market forces exert continuous pressure on organizations and their employees to increase performance to keep up with ever rising demands. Concurrently there are rising pressures from civil society, easily mobilized through social media, for organizational leaders to be more ethical, moral and socially responsible. Employers are currently expected to not only take care of the wellbeing of their employees, but also the wellbeing of the communities in which they operate. The challenge is clearly to find a business model that can increase individual and organizational performance, while at the same time create high levels of wellbeing for employees and thereby creating a spill-over effect to influence the wellbeing of their social environment positively. To this end, the literature was reviewed to identify constructs which could provide a solid ethical and moral managerial foundation, increase performance and create high levels of wellbeing at the same time. Servant Leadership, Workplace Trust, Work Engagement and Workplace Wellbeing were identified as constructs which could fulfill these requirements. As measurement lies at the heart of scientific endeavour, the selection of appropriate measuring instruments was considered to be equally important. The Servant Leadership Survey (Van Dierendonck and Nuijten, 2011), the Workplace Trust Survey (Ferres, 2001), the Utrecht Work Engagement Scale (Schaufeli et al, 2002) and the Work Wellbeing Questionnaire (Parker and Hyett, 2011) were selected as the most suitable instruments. These instruments are deemed to measure the constructs thoroughly through a combined total of 114 items and 18 dimensions. Three primary aims were identified for the study namely, determining the configurational portability of the instruments, investigating the relationships between the variables to determine their direct and sequential effect on wellbeing and establishing whether structural models of the findings could be built. The main findings indicate that each of the variables explain significant proportions of the variance in Work Wellbeing directly as well as indirectly through their effect on the other variables of the study. It seems that these variables contribute to fostering a psycho-organizational climate conducive to increased wellbeing.
- Full Text:
- Date Issued: 2017
- Authors: Barnard, Patrick Christian
- Date: 2017
- Subjects: Work environment -- Psychological aspects Organizational behavior , Psychology, Industrial Leadership
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/14532 , vital:27740
- Description: Globalization has had a profound impact on the business environment of organizations and on the lives of employees in most countries. Previously sheltered markets were suddenly opened up to intense international competition. Organizations had to improve the efficient and effective utilization of resources to retain and gain market shares. Even organizations which are still prospering today in the face of serious competition, cannot be sure of continued success in the next financial year. Astute owners and managers are acutely aware of the need to continually and consciously seek the competitive edge for their businesses. Market forces exert continuous pressure on organizations and their employees to increase performance to keep up with ever rising demands. Concurrently there are rising pressures from civil society, easily mobilized through social media, for organizational leaders to be more ethical, moral and socially responsible. Employers are currently expected to not only take care of the wellbeing of their employees, but also the wellbeing of the communities in which they operate. The challenge is clearly to find a business model that can increase individual and organizational performance, while at the same time create high levels of wellbeing for employees and thereby creating a spill-over effect to influence the wellbeing of their social environment positively. To this end, the literature was reviewed to identify constructs which could provide a solid ethical and moral managerial foundation, increase performance and create high levels of wellbeing at the same time. Servant Leadership, Workplace Trust, Work Engagement and Workplace Wellbeing were identified as constructs which could fulfill these requirements. As measurement lies at the heart of scientific endeavour, the selection of appropriate measuring instruments was considered to be equally important. The Servant Leadership Survey (Van Dierendonck and Nuijten, 2011), the Workplace Trust Survey (Ferres, 2001), the Utrecht Work Engagement Scale (Schaufeli et al, 2002) and the Work Wellbeing Questionnaire (Parker and Hyett, 2011) were selected as the most suitable instruments. These instruments are deemed to measure the constructs thoroughly through a combined total of 114 items and 18 dimensions. Three primary aims were identified for the study namely, determining the configurational portability of the instruments, investigating the relationships between the variables to determine their direct and sequential effect on wellbeing and establishing whether structural models of the findings could be built. The main findings indicate that each of the variables explain significant proportions of the variance in Work Wellbeing directly as well as indirectly through their effect on the other variables of the study. It seems that these variables contribute to fostering a psycho-organizational climate conducive to increased wellbeing.
- Full Text:
- Date Issued: 2017
An investigation into the impact of the use of an integrated learning system on mathematics standard grade paper 2 marks of grade 12 learners of one high school in the Nelson Mandela Metropolitan area
- Barnard, Stefanus van Rooyen
- Authors: Barnard, Stefanus van Rooyen
- Date: 2004
- Subjects: Mathematics -- Research -- South Africa -- Port Elizabeth , Mathematics -- Examinations -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , DEd
- Identifier: vital:10780 , http://hdl.handle.net/10948/248 , Mathematics -- Research -- South Africa -- Port Elizabeth , Mathematics -- Examinations -- South Africa -- Port Elizabeth
- Description: The aim of this study was an exploration of the relationship between the use of an Integrated Learning System (ILS), entitled Master Maths, as a supplement to traditional mathematics instruction, and mathematics achievement as measured by the Paper 2 marks of the National Mathematics Examinations for standard grade learners in grade 12. The use of technology in education has increased over the past decade. One way of integrating technology into instructional programmes has been through the use of Integrated Learning Systems (ILSs). The review of the literature traces the history of computer-assisted instruction as conducted on ILSs. The review of recent research studies focuses on the impact of ILSs on learner achievement in mathematics internationally and in the South African context. This study used quantitative and qualitative methods to research the impact of the Master Maths programme on mathematics achievement. Twenty-six learners of the 133 standard grade learners from one high school in New Brighton, Port Elizabeth were selected for each of the experimental and control groups. The experimental group worked on the Master Maths programme for twelve sessions of three hours each. The results of the quantitative analysis show that the intervention did not make a significant difference to the experimental group. The Master Maths programme led to only a 0.56% increase in the marks of the experimental group. The qualitative analysis drew a comparison between the modules of the Master Maths programme and the relevant examination questions in terms of content covered and cognitive levels. The researcher used Bloom’s Cognitive Taxonomy to evaluate the cognitive levels. The data show that it was easier for the learners to obtain higher marks in the module tests than in the examination questions. The data indicate that the module tests were easier than the examination questions in that the cognitive levels of the module tests were lower. The data confirm that there is a gap between the acquisition and evaluation of core skills tested by the modules used in the intervention and the wider knowledge and skills tested in the examination.
- Full Text:
- Date Issued: 2004
- Authors: Barnard, Stefanus van Rooyen
- Date: 2004
- Subjects: Mathematics -- Research -- South Africa -- Port Elizabeth , Mathematics -- Examinations -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , DEd
- Identifier: vital:10780 , http://hdl.handle.net/10948/248 , Mathematics -- Research -- South Africa -- Port Elizabeth , Mathematics -- Examinations -- South Africa -- Port Elizabeth
- Description: The aim of this study was an exploration of the relationship between the use of an Integrated Learning System (ILS), entitled Master Maths, as a supplement to traditional mathematics instruction, and mathematics achievement as measured by the Paper 2 marks of the National Mathematics Examinations for standard grade learners in grade 12. The use of technology in education has increased over the past decade. One way of integrating technology into instructional programmes has been through the use of Integrated Learning Systems (ILSs). The review of the literature traces the history of computer-assisted instruction as conducted on ILSs. The review of recent research studies focuses on the impact of ILSs on learner achievement in mathematics internationally and in the South African context. This study used quantitative and qualitative methods to research the impact of the Master Maths programme on mathematics achievement. Twenty-six learners of the 133 standard grade learners from one high school in New Brighton, Port Elizabeth were selected for each of the experimental and control groups. The experimental group worked on the Master Maths programme for twelve sessions of three hours each. The results of the quantitative analysis show that the intervention did not make a significant difference to the experimental group. The Master Maths programme led to only a 0.56% increase in the marks of the experimental group. The qualitative analysis drew a comparison between the modules of the Master Maths programme and the relevant examination questions in terms of content covered and cognitive levels. The researcher used Bloom’s Cognitive Taxonomy to evaluate the cognitive levels. The data show that it was easier for the learners to obtain higher marks in the module tests than in the examination questions. The data indicate that the module tests were easier than the examination questions in that the cognitive levels of the module tests were lower. The data confirm that there is a gap between the acquisition and evaluation of core skills tested by the modules used in the intervention and the wider knowledge and skills tested in the examination.
- Full Text:
- Date Issued: 2004
An empirical phenomenological investigation of procrastinating behaviour
- Authors: Barratt, Neal Anthony
- Date: 2010
- Subjects: Procrastination Self-actualization (Psychology) Cognitive psychology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2929 , http://hdl.handle.net/10962/d1002438
- Description: A qualitative empirical phenomenological study was undertaken to determine the self-experience of procrastinating behaviour. Five students each gave an account of an occasion when they procrastinated. The resultant protocols were analysed and the Situated Structure of each individual’s experience was reported. From these, the General Structure of procrastinating behaviour was determined. A further, novel step was added to the standard methodology, whereby ‘themes’ were extracted from participant protocols and a ‘Composite Reality’ of everyday-life procrastination was rendered. Participants’ accounts suggest they are concerned the results of intellectual tasks they undertake will be seen as equivalent to their quality of being-as-an-individual: poor work results will be interpreted by important-others as evidence of participants’ poor quality of self – which is to be avoided. This study suggests that procrastination is a ploy used by individuals to avoid criticism, by deflecting assessment of their capacity to complete a task well, to instead, what they are capable of when only a limited time is available. Conclusions drawn by the important-others of participants’ true ability are thereby confounded. The results achieved in the phenomenological study were compared with others originating from various quantitative studies, and considerable overlap was found. The experiential richness of the phenomenological results point to a worthwhile methodological strategy for future procrastination research.
- Full Text:
- Date Issued: 2010
- Authors: Barratt, Neal Anthony
- Date: 2010
- Subjects: Procrastination Self-actualization (Psychology) Cognitive psychology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2929 , http://hdl.handle.net/10962/d1002438
- Description: A qualitative empirical phenomenological study was undertaken to determine the self-experience of procrastinating behaviour. Five students each gave an account of an occasion when they procrastinated. The resultant protocols were analysed and the Situated Structure of each individual’s experience was reported. From these, the General Structure of procrastinating behaviour was determined. A further, novel step was added to the standard methodology, whereby ‘themes’ were extracted from participant protocols and a ‘Composite Reality’ of everyday-life procrastination was rendered. Participants’ accounts suggest they are concerned the results of intellectual tasks they undertake will be seen as equivalent to their quality of being-as-an-individual: poor work results will be interpreted by important-others as evidence of participants’ poor quality of self – which is to be avoided. This study suggests that procrastination is a ploy used by individuals to avoid criticism, by deflecting assessment of their capacity to complete a task well, to instead, what they are capable of when only a limited time is available. Conclusions drawn by the important-others of participants’ true ability are thereby confounded. The results achieved in the phenomenological study were compared with others originating from various quantitative studies, and considerable overlap was found. The experiential richness of the phenomenological results point to a worthwhile methodological strategy for future procrastination research.
- Full Text:
- Date Issued: 2010
Determinants of internet banking adoption by banks in Ghana
- Authors: Bart-Williams, Edem
- Date: 2015
- Subjects: Internet banking -- Ghana , Banks and banking -- Ghana , Banks and banking -- Automation
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/3715 , vital:20457
- Description: Growth in information and communication technology (ICT) is drastically changing the way businesses, especially in the service industries, are conducted. The financial services industry and banking in particular, is not excluded from this technology explosion. Internet banking, even though not new in advanced countries, is a new transaction channel being used by banks in some parts of Africa, especially Ghana, to offer various products and services to their customers. However, this medium has not been fully exploited by these banks as there are many hurdles the banks must triumph over. In deploying this technology and these systems, there are several factors which banks must take into consideration before fully deploying such a system to their customers, hence the motivation for this study. The absence of suitable and sufficient knowledge on this topic also exposes a “rhetoric versus reality” argument of whether the intention to adopt Internet banking is critical to the strategies and ultimate success of banks in Ghana. For banks to stay ahead of competition as well as to attract and maintain their clientele, it is of paramount importance to gather and link the perspectives of both clients and bank managers in order for banks to ensure that they perform according to the needs and expectations of their clients. In order to achieve the intended results, an empirical study was conducted by taking into consideration the viewpoints of both bank clients and bank managers in determining the factors that customers take into consideration before adopting the Internet banking medium. The primary aim of this study was to quantify significant relationships between the selected variables. Therefore the positivism research paradigm was used, while the phenomenological paradigm was employed for the measuring instruments. Because multiple sources of data were used, from the perspectives of banking clients and managers in Ghana, methodological triangulation was adopted for this study. The results of the empirical investigation showed that both groups (clients and managers) considered the variables of market share, technology acceptance, diffusion of innovation, organisational variables, organisational efficiency, and business strategy to have direct influence on the adoption of Internet banking. However, they differed in opinion concerning the degree of influence of these variables. The bank managers’ responses leaned more towards strong agreement with the importance of these variables than did those of the bank clients. Thus, for bank clients to readily adopt the Internet banking medium for their banking transactions, bank managers must take a closer look at these determinant factors described in the study. The study showed that the population group, educational and income levels exerted an influence on the perceptions clients have regarding Internet banking adoption factors. It was found that the higher the education and income levels of the clients, the easier it was for them to adopt Internet banking. Also, the male group dominated the use of the Internet banking. This is supported by the fact that there is a growing middle class in Ghana that falls within this category of banking clients.
- Full Text:
- Date Issued: 2015
- Authors: Bart-Williams, Edem
- Date: 2015
- Subjects: Internet banking -- Ghana , Banks and banking -- Ghana , Banks and banking -- Automation
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/3715 , vital:20457
- Description: Growth in information and communication technology (ICT) is drastically changing the way businesses, especially in the service industries, are conducted. The financial services industry and banking in particular, is not excluded from this technology explosion. Internet banking, even though not new in advanced countries, is a new transaction channel being used by banks in some parts of Africa, especially Ghana, to offer various products and services to their customers. However, this medium has not been fully exploited by these banks as there are many hurdles the banks must triumph over. In deploying this technology and these systems, there are several factors which banks must take into consideration before fully deploying such a system to their customers, hence the motivation for this study. The absence of suitable and sufficient knowledge on this topic also exposes a “rhetoric versus reality” argument of whether the intention to adopt Internet banking is critical to the strategies and ultimate success of banks in Ghana. For banks to stay ahead of competition as well as to attract and maintain their clientele, it is of paramount importance to gather and link the perspectives of both clients and bank managers in order for banks to ensure that they perform according to the needs and expectations of their clients. In order to achieve the intended results, an empirical study was conducted by taking into consideration the viewpoints of both bank clients and bank managers in determining the factors that customers take into consideration before adopting the Internet banking medium. The primary aim of this study was to quantify significant relationships between the selected variables. Therefore the positivism research paradigm was used, while the phenomenological paradigm was employed for the measuring instruments. Because multiple sources of data were used, from the perspectives of banking clients and managers in Ghana, methodological triangulation was adopted for this study. The results of the empirical investigation showed that both groups (clients and managers) considered the variables of market share, technology acceptance, diffusion of innovation, organisational variables, organisational efficiency, and business strategy to have direct influence on the adoption of Internet banking. However, they differed in opinion concerning the degree of influence of these variables. The bank managers’ responses leaned more towards strong agreement with the importance of these variables than did those of the bank clients. Thus, for bank clients to readily adopt the Internet banking medium for their banking transactions, bank managers must take a closer look at these determinant factors described in the study. The study showed that the population group, educational and income levels exerted an influence on the perceptions clients have regarding Internet banking adoption factors. It was found that the higher the education and income levels of the clients, the easier it was for them to adopt Internet banking. Also, the male group dominated the use of the Internet banking. This is supported by the fact that there is a growing middle class in Ghana that falls within this category of banking clients.
- Full Text:
- Date Issued: 2015
Local tourism governance of destination marketing organisations
- Authors: Bartis, Hugh Henry
- Date: 2018
- Subjects: Place marketing Tourism -- Marketing
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/17799 , vital:28455
- Description: Globally tourism is one of the biggest industries and its role is considered key in economic development. In South Africa, tourism is one of the main economic drivers. Thus, tourism contributes to the gross domestic product, generates foreign exchange and provides sustainable employment opportunities. In order to facilitate local economic development (LED), local destination marketing organisations (DMOs) need to ensure that their operations are geared towards optimising the economic advantages related to tourism growth and development. As a result the DMOs must be strategic and well-managed. One way of achieving this is to ensure that the board of directors and specifically the non-executive directors (NEDs) practise good governance. In South Africa, three (3) types of DMOs are found, namely those that are funded by local government and incorporated into the municipality. The second type of DMOs is funded by the private sector. The third type of DMOs is those funded by both the local government and the private sector. In this case, the DMO has an agreement with the local government in terms of what their mandate is and what the agreed outcomes would be. A board of directors, comprising both executive directors (EDs) and nonexecutive directors (NEDs) is responsible for the governance of the local DMO. The main research problem of the study is the attributes and experience of the nonexecutive directors that serve on the boards of DMOs in accordance with developmental standards of best practices. In order to address the main problem, the following research objectives were formulated: To identify best practice by examining the literature as to how NEDs are prepared to serve on boards of both listed and non-listed organisations. To determine whether any policy frameworks provide guidance to NEDs serving on DMOs in South Africa. To examine whether any training or preparatory programmes exist specifically for NEDs in DMOs. To investigate whether NEDs should have specific attributes that would improve their governance of DMOs. To develop a set of recommendations that would assist NEDs to play a more effective role when executing their responsibilities. In order to address these research objectives, a quantitative research methodology was adopted sampling all the DMOs in South Africa that could be identified and were governed by a board of directors. For this purpose, a self-completed questionnaire was distributed to the board of directors of DMOs and specifically the non-executive directors. The results of the study indicated that no guidelines existed that DMOs could follow to better prepare the NEDs of local DMOs. Furthermore, no policy frameworks provide guidance to NEDs serving on local DMOs. The only guidelines that exist are generic guidelines of the King IV Report for NEDs of listed and non-listed organisations. In addition, Pike (2016:108) listed a number of characteristics of good governance. The study also revealed that no training or preparatory programmes exist for the NEDs of local DMOs. Finally, the study highlighted five (5) attributes that NEDs consider as critical in fulfilling their obligations. These include the empowerment of NEDs, the commitment of NEDs, communication with NEDs, job satisfaction of the NEDs and the need for NEDs to understand policy frameworks relevant to their tasks.
- Full Text:
- Date Issued: 2018
- Authors: Bartis, Hugh Henry
- Date: 2018
- Subjects: Place marketing Tourism -- Marketing
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/17799 , vital:28455
- Description: Globally tourism is one of the biggest industries and its role is considered key in economic development. In South Africa, tourism is one of the main economic drivers. Thus, tourism contributes to the gross domestic product, generates foreign exchange and provides sustainable employment opportunities. In order to facilitate local economic development (LED), local destination marketing organisations (DMOs) need to ensure that their operations are geared towards optimising the economic advantages related to tourism growth and development. As a result the DMOs must be strategic and well-managed. One way of achieving this is to ensure that the board of directors and specifically the non-executive directors (NEDs) practise good governance. In South Africa, three (3) types of DMOs are found, namely those that are funded by local government and incorporated into the municipality. The second type of DMOs is funded by the private sector. The third type of DMOs is those funded by both the local government and the private sector. In this case, the DMO has an agreement with the local government in terms of what their mandate is and what the agreed outcomes would be. A board of directors, comprising both executive directors (EDs) and nonexecutive directors (NEDs) is responsible for the governance of the local DMO. The main research problem of the study is the attributes and experience of the nonexecutive directors that serve on the boards of DMOs in accordance with developmental standards of best practices. In order to address the main problem, the following research objectives were formulated: To identify best practice by examining the literature as to how NEDs are prepared to serve on boards of both listed and non-listed organisations. To determine whether any policy frameworks provide guidance to NEDs serving on DMOs in South Africa. To examine whether any training or preparatory programmes exist specifically for NEDs in DMOs. To investigate whether NEDs should have specific attributes that would improve their governance of DMOs. To develop a set of recommendations that would assist NEDs to play a more effective role when executing their responsibilities. In order to address these research objectives, a quantitative research methodology was adopted sampling all the DMOs in South Africa that could be identified and were governed by a board of directors. For this purpose, a self-completed questionnaire was distributed to the board of directors of DMOs and specifically the non-executive directors. The results of the study indicated that no guidelines existed that DMOs could follow to better prepare the NEDs of local DMOs. Furthermore, no policy frameworks provide guidance to NEDs serving on local DMOs. The only guidelines that exist are generic guidelines of the King IV Report for NEDs of listed and non-listed organisations. In addition, Pike (2016:108) listed a number of characteristics of good governance. The study also revealed that no training or preparatory programmes exist for the NEDs of local DMOs. Finally, the study highlighted five (5) attributes that NEDs consider as critical in fulfilling their obligations. These include the empowerment of NEDs, the commitment of NEDs, communication with NEDs, job satisfaction of the NEDs and the need for NEDs to understand policy frameworks relevant to their tasks.
- Full Text:
- Date Issued: 2018
The state of constitutionalism in Uganda: 1962-2018
- Authors: Bashasha, Turyatemba Alex
- Date: 2018
- Subjects: Constitutional history -- Uganda , Constitutional history Constitutional law -- Uganda
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/23669 , vital:30596
- Description: This Thesis examines the state of constitutionalism in Uganda between 1962 and 2018. The central question which it seeks to answer is: ‘why did Ugandan governments persistently fail to adhere to the basic requirements of the doctrine of constitutionalism between 1962 and 2018?’ In answering this question, which has challenged and continues to challenge many academicians, politicians, government officials, researchers and the international community alike, the Thesis adopts the Theory of Neo-patrimonialism as a theoretical lens through which the behaviours of the post-independence presidents of Uganda are examined. The Thesis discovers that, indeed, Neo-patrimonialism is a fundamental framework for analysing and explaining constitutionalism in post-independence Uganda. Against this backdrop, the Thesis concludes that, the collective behaviours of Uganda’s post-independence presidents viewed through the lens of neo-patrimonialism are more fundamental in understanding the failure of democracy and good governance in Uganda than the country’s structural problems of constitutionalism. The originality of the Thesis is in: (a) its being the first comprehensive investigation into why Ugandan governments have persistently failed to adhere to the basic requirements of the doctrine of constitutionalism for the entire period of 56 years (1962-2018) of post-independence Uganda; and (b) its being the first study to apply the Theory of Neo-patrimonialism in explaining the volatile nature and state of constitutionalism in Uganda. The contribution of the Thesis to the existing knowledge lies in its; (a) generation of detailed and well-researched information about the volatility of constitutionalism in Uganda between 1962 and 2018, (b) recommendation of strategies that should be adopted to effectively enhance consititutionalism in Uganda, and (c) authentication of the validity of the claims that despite its shortcomings, Neo-patrimonialism is a Theory which not only continues to define and drive African politics but its application can suitably be used to explain the volatile nature of constitutionalism in post-independence Uganda and the rest of Africa.
- Full Text:
- Date Issued: 2018
- Authors: Bashasha, Turyatemba Alex
- Date: 2018
- Subjects: Constitutional history -- Uganda , Constitutional history Constitutional law -- Uganda
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/23669 , vital:30596
- Description: This Thesis examines the state of constitutionalism in Uganda between 1962 and 2018. The central question which it seeks to answer is: ‘why did Ugandan governments persistently fail to adhere to the basic requirements of the doctrine of constitutionalism between 1962 and 2018?’ In answering this question, which has challenged and continues to challenge many academicians, politicians, government officials, researchers and the international community alike, the Thesis adopts the Theory of Neo-patrimonialism as a theoretical lens through which the behaviours of the post-independence presidents of Uganda are examined. The Thesis discovers that, indeed, Neo-patrimonialism is a fundamental framework for analysing and explaining constitutionalism in post-independence Uganda. Against this backdrop, the Thesis concludes that, the collective behaviours of Uganda’s post-independence presidents viewed through the lens of neo-patrimonialism are more fundamental in understanding the failure of democracy and good governance in Uganda than the country’s structural problems of constitutionalism. The originality of the Thesis is in: (a) its being the first comprehensive investigation into why Ugandan governments have persistently failed to adhere to the basic requirements of the doctrine of constitutionalism for the entire period of 56 years (1962-2018) of post-independence Uganda; and (b) its being the first study to apply the Theory of Neo-patrimonialism in explaining the volatile nature and state of constitutionalism in Uganda. The contribution of the Thesis to the existing knowledge lies in its; (a) generation of detailed and well-researched information about the volatility of constitutionalism in Uganda between 1962 and 2018, (b) recommendation of strategies that should be adopted to effectively enhance consititutionalism in Uganda, and (c) authentication of the validity of the claims that despite its shortcomings, Neo-patrimonialism is a Theory which not only continues to define and drive African politics but its application can suitably be used to explain the volatile nature of constitutionalism in post-independence Uganda and the rest of Africa.
- Full Text:
- Date Issued: 2018
A critical analysis of the de-peasantisation process in Nepal with specific reference to the role of state land policies since the 1950s
- Authors: Basnet, Jagat
- Date: 2020
- Subjects: Land tenure -- Nepal , Land reform -- Law and legislation -- Nepal , Nepal -- Politics and government , Peasants -- Nepal -- Economic conditions , Panchayat -- Nepal
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/138716 , vital:37667
- Description: The principal objective of this thesis is to offer a critical analysis of the process of de-peasantisation in Nepal since 1950, with a particular focus on the capitalist neo-liberal restructuring of the economy beginning in the early 1990s. The analysis begins by tracing the legacy of feudal land practices and landholdings from the pre-1950 Rana and Shah dynasties. It was under these feudal dynasties that economic and political institutions of extraction first emerged, leading to a landlord-peasant agrarian economy in which peasants (often as tenants/sharecroppers and smallholders) were subordinate to the power nexus between feudal landlords and the ruling dynasties. After 1950, a window of democratic opening was soon interrupted by the formation of the party-less Panchayat system, which lasted from 1960 to 1990. In 1964, a major land reform measure was enacted under the Lands Act, with the goal of enhancing the security and livelihood of the peasantry. However, this process was met with significant resistance by feudal landlords, and actually led to deepening insecurity and the loss of land by peasants, with farmers belonging to lower castes and indigenous groups experiencing this with a greater degree of intensity. The overall result of this period was the beginnings of what is referred to in this study as de-peasantisation. This line of analysis shows that the institutions of extraction remained firmly in place even after the reforms of this period. Finally, the neo-liberal period, which was marked by land titling, the marketisation of land, and the commercialisation of agriculture, represents the late entry of capitalism into Nepal. This period saw the deepening and widening of the process of de-peasantisation, including further loss of peasants’ access to land and a general turn to wage-labour. In this regard, despite propagating the slogan ‘land to the tillers’, the major political parties in Nepal (including the Maoist party) have failed to defend the interests of the peasantry. Some progressive civil society groups have recently sought to do better, but there is also evidence of peasant organisations themselves seeking to resist and oppose the de-peasantisation effects of neo-liberal restructuring. This thesis thus considers the form and extent of de-peasantisation in Nepal, and some responses to it, over an extended period. A broad Marxist-based political economy perspective has been adopted in pursuing the principal thesis objective, but one which argues that there is a symbiotic relationship between economic and political power, such that the latter is not reducible to the former. The thesis draws upon original fieldwork in twenty districts of Nepal, including through the use of a survey, interviews, observations, case studies, and focus group discussions, thus combining both quantitative and qualitative research methods. Based on this fieldwork, it becomes clear that (i) there are major social, economic, and political forces behind the processes of de-peasantisation in the studied districts (and in Nepal more broadly), and that (ii) the Nepali peasantry is becoming increasingly landless, or land-short, and subject to processes of proletarianisation.
- Full Text:
- Date Issued: 2020
- Authors: Basnet, Jagat
- Date: 2020
- Subjects: Land tenure -- Nepal , Land reform -- Law and legislation -- Nepal , Nepal -- Politics and government , Peasants -- Nepal -- Economic conditions , Panchayat -- Nepal
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/138716 , vital:37667
- Description: The principal objective of this thesis is to offer a critical analysis of the process of de-peasantisation in Nepal since 1950, with a particular focus on the capitalist neo-liberal restructuring of the economy beginning in the early 1990s. The analysis begins by tracing the legacy of feudal land practices and landholdings from the pre-1950 Rana and Shah dynasties. It was under these feudal dynasties that economic and political institutions of extraction first emerged, leading to a landlord-peasant agrarian economy in which peasants (often as tenants/sharecroppers and smallholders) were subordinate to the power nexus between feudal landlords and the ruling dynasties. After 1950, a window of democratic opening was soon interrupted by the formation of the party-less Panchayat system, which lasted from 1960 to 1990. In 1964, a major land reform measure was enacted under the Lands Act, with the goal of enhancing the security and livelihood of the peasantry. However, this process was met with significant resistance by feudal landlords, and actually led to deepening insecurity and the loss of land by peasants, with farmers belonging to lower castes and indigenous groups experiencing this with a greater degree of intensity. The overall result of this period was the beginnings of what is referred to in this study as de-peasantisation. This line of analysis shows that the institutions of extraction remained firmly in place even after the reforms of this period. Finally, the neo-liberal period, which was marked by land titling, the marketisation of land, and the commercialisation of agriculture, represents the late entry of capitalism into Nepal. This period saw the deepening and widening of the process of de-peasantisation, including further loss of peasants’ access to land and a general turn to wage-labour. In this regard, despite propagating the slogan ‘land to the tillers’, the major political parties in Nepal (including the Maoist party) have failed to defend the interests of the peasantry. Some progressive civil society groups have recently sought to do better, but there is also evidence of peasant organisations themselves seeking to resist and oppose the de-peasantisation effects of neo-liberal restructuring. This thesis thus considers the form and extent of de-peasantisation in Nepal, and some responses to it, over an extended period. A broad Marxist-based political economy perspective has been adopted in pursuing the principal thesis objective, but one which argues that there is a symbiotic relationship between economic and political power, such that the latter is not reducible to the former. The thesis draws upon original fieldwork in twenty districts of Nepal, including through the use of a survey, interviews, observations, case studies, and focus group discussions, thus combining both quantitative and qualitative research methods. Based on this fieldwork, it becomes clear that (i) there are major social, economic, and political forces behind the processes of de-peasantisation in the studied districts (and in Nepal more broadly), and that (ii) the Nepali peasantry is becoming increasingly landless, or land-short, and subject to processes of proletarianisation.
- Full Text:
- Date Issued: 2020
Critical assessment of corruption in municipalities and its impact in service delivery : case study Buffalo City Metropolitan Municipality
- Authors: Basopu, Price Mike
- Date: 2016
- Subjects: Misconduct in office -- South Africa -- Eastern Cape Corruption -- South Africa -- Eastern Cape Local government -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/1558 , vital:27445
- Description: Many African countries including Africa South have been experiencing many challenges such as corruption, fraud and misaprpriation of fund in this new democratic dispensation. In this regard, the municipalities are viewed as the most affected institutions, with the Eastern Cape Province identified as culprit number one engaging in corrupt activities. There are a number of contributing factors, as attributed in the study, but most prevalent among these are capacity issues in most of these municipalities, with fewer personnel and less capacity. Challenges of corruption in municipalities are perpetrated mainly by municipal officials, councilors and members of the public. This study, identified corruption as one of the challenges facing municipalities in the Eastern Cape. It involves both the achievements and limitations that have been experienced; and indeed, there are still numerous issues to be addressed and accomplished. It discusses some critical issues such as how corruption has been the mother of the day in South Africa and its effect on the public sector in general. Inadditon, misappropriation of public resources and corruption immersed the nation as a whole into a greater challenge rather than focusing on service delivery issues. There are situations, within municipalities, where the majority of senior officials, who may be in possession of valuable information, are always under suspension. The findings of the study also show that all the municipalities operating in this new democaticatic dispensation have not been able to prepare a transparent annual financial year report at the end of the year. In fact, the majority of them always obtain disclaimer or adverse reports from the Office of Auditor-General (AG), despite numerous attempts and interventions by the AG‟s office and the Provincial Treasury to rectify the situation. The challenges of leadership crises in some of these municipalities, both administratively and politically have been critically examined. The findings show that between 2012 and 2015 financial years, some of these municipalities have been without full-time Accounting Officers; people were only seconded or in acting capacity, and some of them were under adminisistration, which is section 139 (c) of the constitution. There were numerous attempts of interventions by the national leadership of the ANC in the ANC regional structures which in many instances were the root cause of the problems or divisions, as well as in municipalities where in Buffalo City Metro and Nelson Mandela Metro respectively there were leadership changes or redeployments. The issue of corruption in the municipalities is compromising and impact negatively in the service delivery. It can be concluded that municipalities are characterized by a number of instances of corruption perpetrated mainly by municipal officials, councilors and members of society. Bribery, fraud, nepotism, and systematic corruption are some of the forms of corruption that take place in municipalities in South Africa. There are systems in place to fight corruption, but the reality is that they are very weak and ineffective. The anti-corruption strategies put in municipalities have general functioned poorly hence the prevailing the situation. There is glaring non-compliance with the Municipal Finance Management Act (MFMA), the Treasury Regulations and their own Procurement Procedures and Procurement Policies. It is evident that despite the achievement by an ANC led government for almost over 21 years of democracy, there remain many political and administrative challenges especial in municipalities. The fundamental question need to be posed and address therefore is, how best these challenges can be addressed and turn around service delivery to a tangible outcome. The Constitution of the Republic of South Africa provides for the promotion and maintenance of a high standard of professional ethics in the public service. Public resources are vulnerable to abuse by unscrupulous elements, both inside and outside government and therefore requires careful monitoring and control. The existing legislative framework is solid but fragmented and requires review and consolidation to improve its efficiency. To achieve that government requires an approach that is developmental in nature. Governance should be able to take control of the organization’s systems and at the same time adaptable to the environment in a way strengthens the capacity to achieve goals.
- Full Text:
- Date Issued: 2016
- Authors: Basopu, Price Mike
- Date: 2016
- Subjects: Misconduct in office -- South Africa -- Eastern Cape Corruption -- South Africa -- Eastern Cape Local government -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10353/1558 , vital:27445
- Description: Many African countries including Africa South have been experiencing many challenges such as corruption, fraud and misaprpriation of fund in this new democratic dispensation. In this regard, the municipalities are viewed as the most affected institutions, with the Eastern Cape Province identified as culprit number one engaging in corrupt activities. There are a number of contributing factors, as attributed in the study, but most prevalent among these are capacity issues in most of these municipalities, with fewer personnel and less capacity. Challenges of corruption in municipalities are perpetrated mainly by municipal officials, councilors and members of the public. This study, identified corruption as one of the challenges facing municipalities in the Eastern Cape. It involves both the achievements and limitations that have been experienced; and indeed, there are still numerous issues to be addressed and accomplished. It discusses some critical issues such as how corruption has been the mother of the day in South Africa and its effect on the public sector in general. Inadditon, misappropriation of public resources and corruption immersed the nation as a whole into a greater challenge rather than focusing on service delivery issues. There are situations, within municipalities, where the majority of senior officials, who may be in possession of valuable information, are always under suspension. The findings of the study also show that all the municipalities operating in this new democaticatic dispensation have not been able to prepare a transparent annual financial year report at the end of the year. In fact, the majority of them always obtain disclaimer or adverse reports from the Office of Auditor-General (AG), despite numerous attempts and interventions by the AG‟s office and the Provincial Treasury to rectify the situation. The challenges of leadership crises in some of these municipalities, both administratively and politically have been critically examined. The findings show that between 2012 and 2015 financial years, some of these municipalities have been without full-time Accounting Officers; people were only seconded or in acting capacity, and some of them were under adminisistration, which is section 139 (c) of the constitution. There were numerous attempts of interventions by the national leadership of the ANC in the ANC regional structures which in many instances were the root cause of the problems or divisions, as well as in municipalities where in Buffalo City Metro and Nelson Mandela Metro respectively there were leadership changes or redeployments. The issue of corruption in the municipalities is compromising and impact negatively in the service delivery. It can be concluded that municipalities are characterized by a number of instances of corruption perpetrated mainly by municipal officials, councilors and members of society. Bribery, fraud, nepotism, and systematic corruption are some of the forms of corruption that take place in municipalities in South Africa. There are systems in place to fight corruption, but the reality is that they are very weak and ineffective. The anti-corruption strategies put in municipalities have general functioned poorly hence the prevailing the situation. There is glaring non-compliance with the Municipal Finance Management Act (MFMA), the Treasury Regulations and their own Procurement Procedures and Procurement Policies. It is evident that despite the achievement by an ANC led government for almost over 21 years of democracy, there remain many political and administrative challenges especial in municipalities. The fundamental question need to be posed and address therefore is, how best these challenges can be addressed and turn around service delivery to a tangible outcome. The Constitution of the Republic of South Africa provides for the promotion and maintenance of a high standard of professional ethics in the public service. Public resources are vulnerable to abuse by unscrupulous elements, both inside and outside government and therefore requires careful monitoring and control. The existing legislative framework is solid but fragmented and requires review and consolidation to improve its efficiency. To achieve that government requires an approach that is developmental in nature. Governance should be able to take control of the organization’s systems and at the same time adaptable to the environment in a way strengthens the capacity to achieve goals.
- Full Text:
- Date Issued: 2016
The development of an optimised decision based methodology for the replacement timing of frontline equipment utilised within the quarrying industry
- Authors: Basson, Kenneth Mervyn
- Date: 2018
- Subjects: Decision making , Industrial equipment Industrial equipment -- Maintenance and repair
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/23647 , vital:30592
- Description: At present, frontline equipment employed at B&E International, and operating within the quarrying sector is typically replaced as soon as the operating expenses are deemed to be excessive. From a capital budgeting perspective, the trigger for signalling the replacement of equipment occurs when prescribed operating cost performance metrics are violated. In some instances, a further consideration for motivating the replacement of equipment is when the perception arises that the nonavailability of the equipment employed, results in financial losses being incurred by a company. It can therefore be argued that the current equipment replacement timing methodological approach adopted at B&E International is suboptimal in nature. The situation is further aggravated by the fact that in many instances, escalation of commitment manifests itself whereby unnecessary capital is repeatedly invested in order to extend the life of an asset resulting in a situation occurring whereby the required level of investment return is not achieved. In the event of these situations arising, the decision to replace an asset is prolonged as a result of the suboptimal investment decisions being made. The primary focus of this study is to provide a methodological equipment replacement framework that is based upon sound capital budgeting fundamentals. A comprehensive literature review of capital budgeting approaches that specifically focus on the optimal replacement timing of frontline quarrying equipment, did not yield any relevant studies that have been undertaken in this regard. This study did however investigate contemporary equipment replacement approaches based upon a capital budgeting paradigm and highlighted their respective limitations. Convincing evidence obtained, indicated that the most widely accepted method of identifying the optimal replacement timing of equipment occurs when the economic life of the asset is attained. This in itself would therefore infer that a cost minimisation approach is the most pervasive methodological approach adopted in order to identify the optimal replacement timing of equipment. When considering capital investment based decisions, it was found that the discounted cash flow based methodologies are the most widely used and accepted approach applied in the mining industry. Notwithstanding this, one major caveat manifests itself in that when considering the optimal replacement timing of front line equipment within the quarrying industry, the inclusion of uncertainty, flexibility and the associated financial risks was not evident. In order to model these effects, a probabilistic Net Present Value (NPV) approach was adopted and the required Discounted Cash Flow (DCF) models were constructed. Given the uncertainty of the expected cumulative R&M profiles for the asset classes constituting this study, an extensive statistical analysis was carried out in order to establish the required predictive Repair and Maintenance (R&M) models required for the DCF analysis by means of regression analysis. Further regression analyses were conducted in order to model the overall availability and utilisation metrics for the respective asset classes included in this study. The consequence of incurring downtime was investigated and the resultant DCF analysis yielded a significant impact on the Free Cash Flow (FCF) generated by the respective assets. The magnitude of the incurred consequential financial losses incurred as a result of the respective downtime was found to be significant when considering frontline equipment. In order to model the effect of, and the extent to which, the respective independent variables influence the static NPV outcome, a sensitivity analysis was performed. From this, the influence of the independent variables constituting the NPV model employed in this study, were observed. A Real Options Analysis (ROA) approach was initially employed in order to model the effects of FCF uncertainty and the results of carrying out this analysis indicated a minimal influence on the static NPV model referred to earlier. It was therefore concluded that from an equipment replacement timing perspective, the ROA approach did not provide a robust and accurate representation of the probabilistic NPV outcomes anticipated. In order to address these perceived shortcomings, an Monte Carlo Simulation (MCS) model was constructed and the requisite probability distribution functions representing the most influential independent variables determined from the sensitivity analysis were identified and subsequently analysed. The results of the MCS analysis yielded the expected NPV outcomes that were found to be far more conservative compared to the static NPV outcomes referred to previously. Furthermore, the concluding findings of this study indicate that in order to estimate the optimal time to dispose of an asset, a static NPV analysis must first be modelled and thereafter a probabilistic NPV analysis. The respective uncertainty aspects over the lifespan of the assets should be identified to be incorporated into the MCS model. This methodological approach therefore opposes the use of a strictly deterministic based approach and rather predicates the use of a probabilistic NPV based framework. This study further concluded that traditional DCF approaches fail to consider management flexibility in terms of adapting to uncertainty and to also reduce the possibility of “escalation of commitment” occurring as a result of sub-optimal equipment replacement timing decisions by management. The use and acceptance of the traditional DCF approaches are acknowledged, but in order to develop an equipment replacement methodological approach that considers uncertainty and risk on the one hand and also allows for the incorporation of real data over the assets lifetime on the other, the use of an MCS probabilistic NPV based model was found to be the optimal approach to be adopted. The result of updating the static NPV model with updated data as soon as it is obtained enables one to generate accurate probabilistic distribution functions required for the subsequent MCS analysis. By adopting this approach the study has concluded that one can obtain realistic and accurate NPV forecasts from the anticipated FCF estimates. The principal conclusion obtained from this study is that the optimal time in which to replace front line assets employed at B&E International is when the probabilistic net earnings profile, viz., NPV of the equipment is maximized.
- Full Text:
- Date Issued: 2018
- Authors: Basson, Kenneth Mervyn
- Date: 2018
- Subjects: Decision making , Industrial equipment Industrial equipment -- Maintenance and repair
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: http://hdl.handle.net/10948/23647 , vital:30592
- Description: At present, frontline equipment employed at B&E International, and operating within the quarrying sector is typically replaced as soon as the operating expenses are deemed to be excessive. From a capital budgeting perspective, the trigger for signalling the replacement of equipment occurs when prescribed operating cost performance metrics are violated. In some instances, a further consideration for motivating the replacement of equipment is when the perception arises that the nonavailability of the equipment employed, results in financial losses being incurred by a company. It can therefore be argued that the current equipment replacement timing methodological approach adopted at B&E International is suboptimal in nature. The situation is further aggravated by the fact that in many instances, escalation of commitment manifests itself whereby unnecessary capital is repeatedly invested in order to extend the life of an asset resulting in a situation occurring whereby the required level of investment return is not achieved. In the event of these situations arising, the decision to replace an asset is prolonged as a result of the suboptimal investment decisions being made. The primary focus of this study is to provide a methodological equipment replacement framework that is based upon sound capital budgeting fundamentals. A comprehensive literature review of capital budgeting approaches that specifically focus on the optimal replacement timing of frontline quarrying equipment, did not yield any relevant studies that have been undertaken in this regard. This study did however investigate contemporary equipment replacement approaches based upon a capital budgeting paradigm and highlighted their respective limitations. Convincing evidence obtained, indicated that the most widely accepted method of identifying the optimal replacement timing of equipment occurs when the economic life of the asset is attained. This in itself would therefore infer that a cost minimisation approach is the most pervasive methodological approach adopted in order to identify the optimal replacement timing of equipment. When considering capital investment based decisions, it was found that the discounted cash flow based methodologies are the most widely used and accepted approach applied in the mining industry. Notwithstanding this, one major caveat manifests itself in that when considering the optimal replacement timing of front line equipment within the quarrying industry, the inclusion of uncertainty, flexibility and the associated financial risks was not evident. In order to model these effects, a probabilistic Net Present Value (NPV) approach was adopted and the required Discounted Cash Flow (DCF) models were constructed. Given the uncertainty of the expected cumulative R&M profiles for the asset classes constituting this study, an extensive statistical analysis was carried out in order to establish the required predictive Repair and Maintenance (R&M) models required for the DCF analysis by means of regression analysis. Further regression analyses were conducted in order to model the overall availability and utilisation metrics for the respective asset classes included in this study. The consequence of incurring downtime was investigated and the resultant DCF analysis yielded a significant impact on the Free Cash Flow (FCF) generated by the respective assets. The magnitude of the incurred consequential financial losses incurred as a result of the respective downtime was found to be significant when considering frontline equipment. In order to model the effect of, and the extent to which, the respective independent variables influence the static NPV outcome, a sensitivity analysis was performed. From this, the influence of the independent variables constituting the NPV model employed in this study, were observed. A Real Options Analysis (ROA) approach was initially employed in order to model the effects of FCF uncertainty and the results of carrying out this analysis indicated a minimal influence on the static NPV model referred to earlier. It was therefore concluded that from an equipment replacement timing perspective, the ROA approach did not provide a robust and accurate representation of the probabilistic NPV outcomes anticipated. In order to address these perceived shortcomings, an Monte Carlo Simulation (MCS) model was constructed and the requisite probability distribution functions representing the most influential independent variables determined from the sensitivity analysis were identified and subsequently analysed. The results of the MCS analysis yielded the expected NPV outcomes that were found to be far more conservative compared to the static NPV outcomes referred to previously. Furthermore, the concluding findings of this study indicate that in order to estimate the optimal time to dispose of an asset, a static NPV analysis must first be modelled and thereafter a probabilistic NPV analysis. The respective uncertainty aspects over the lifespan of the assets should be identified to be incorporated into the MCS model. This methodological approach therefore opposes the use of a strictly deterministic based approach and rather predicates the use of a probabilistic NPV based framework. This study further concluded that traditional DCF approaches fail to consider management flexibility in terms of adapting to uncertainty and to also reduce the possibility of “escalation of commitment” occurring as a result of sub-optimal equipment replacement timing decisions by management. The use and acceptance of the traditional DCF approaches are acknowledged, but in order to develop an equipment replacement methodological approach that considers uncertainty and risk on the one hand and also allows for the incorporation of real data over the assets lifetime on the other, the use of an MCS probabilistic NPV based model was found to be the optimal approach to be adopted. The result of updating the static NPV model with updated data as soon as it is obtained enables one to generate accurate probabilistic distribution functions required for the subsequent MCS analysis. By adopting this approach the study has concluded that one can obtain realistic and accurate NPV forecasts from the anticipated FCF estimates. The principal conclusion obtained from this study is that the optimal time in which to replace front line assets employed at B&E International is when the probabilistic net earnings profile, viz., NPV of the equipment is maximized.
- Full Text:
- Date Issued: 2018
Development of molecularly imprinted polymer based solid phase extraction sorbents for the selective cleanup of food and pharmaceutical residue samples
- Authors: Batlokwa, Bareki Shima
- Date: 2012
- Subjects: Sorbents -- Research Nanofibers -- Research Aflatoxins -- Research Electrospinning -- Research Extraction (Chemistry) -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4309 , http://hdl.handle.net/10962/d1004967
- Description: This thesis presents the development of chlorophyll, cholic acid, aflatoxin B1 molecularly imprinted polymer (MIP) particles and cholic acid MIP nanofibers for application as selective solid phase extraction (SPE) sorbents. The particles were prepared by bulk polymerization and the nanofibers by a novel approach combining molecular imprinting and electrospinning technology. The AFB1 MIP particles were compared with an aflatoxin specific immunoextraction sorbent in cleaning-up and pre-concentrating aflatoxins from nut extracts. They both recorded high extraction efficiencies (EEs) of > 97 % in selectively extracting the aflatoxins (AFB1, AFB2, AFG1 and AFG2). High reproducibility marked by the low %RSDs of < 1% and low LODs of ≤ 0.02 ng/g were calculated in all cases. The LODs were within the monitoring requirements of the European Commission. The results were validated with a peanut butter certified reference material. The chlorophyll MIP on the other hand selectively removed chlorophyll that would otherwise interfere during pesticide residue analysis (PRA) from > 0.6 to <0.09 Au in green plants extracts. The extracted chlorophyll was removed to far below the level of ≥ 0.399 Au that is usually associated with interference during PRA. Furthermore, the MIP demonstrated better selectivity by removing only chlorophyll (> 99%) in the presence of planar pesticides than the currently employed graphitized carbon black (GCB) that removed both the chlorophyll (> 88%) and planar pesticides (> 89%). For the interfering cholic acid during drug residue analysis, cholic acid MIP electrospun nanofibers demonstrated to be more sensitive and possessing higher loading capacity than the MIP particles. 100% cholic acid was removed by the nanofibers from standard solutions relative to 80% by the particles. This showed that the nanofibers have better performance than the micro particles and as such have potential to replace the particle based SPE sorbents that are currently in use. All the templates were optimally removed from the prepared MIPs by employing a novel pressurized hot water extraction template removal method that was used for the first time in this thesis. The method employed only water, an environmentally friendly solvent to remove templates to ≥ 99.6% with template residual bleeding of ≤ 0.02%.
- Full Text:
- Date Issued: 2012
- Authors: Batlokwa, Bareki Shima
- Date: 2012
- Subjects: Sorbents -- Research Nanofibers -- Research Aflatoxins -- Research Electrospinning -- Research Extraction (Chemistry) -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4309 , http://hdl.handle.net/10962/d1004967
- Description: This thesis presents the development of chlorophyll, cholic acid, aflatoxin B1 molecularly imprinted polymer (MIP) particles and cholic acid MIP nanofibers for application as selective solid phase extraction (SPE) sorbents. The particles were prepared by bulk polymerization and the nanofibers by a novel approach combining molecular imprinting and electrospinning technology. The AFB1 MIP particles were compared with an aflatoxin specific immunoextraction sorbent in cleaning-up and pre-concentrating aflatoxins from nut extracts. They both recorded high extraction efficiencies (EEs) of > 97 % in selectively extracting the aflatoxins (AFB1, AFB2, AFG1 and AFG2). High reproducibility marked by the low %RSDs of < 1% and low LODs of ≤ 0.02 ng/g were calculated in all cases. The LODs were within the monitoring requirements of the European Commission. The results were validated with a peanut butter certified reference material. The chlorophyll MIP on the other hand selectively removed chlorophyll that would otherwise interfere during pesticide residue analysis (PRA) from > 0.6 to <0.09 Au in green plants extracts. The extracted chlorophyll was removed to far below the level of ≥ 0.399 Au that is usually associated with interference during PRA. Furthermore, the MIP demonstrated better selectivity by removing only chlorophyll (> 99%) in the presence of planar pesticides than the currently employed graphitized carbon black (GCB) that removed both the chlorophyll (> 88%) and planar pesticides (> 89%). For the interfering cholic acid during drug residue analysis, cholic acid MIP electrospun nanofibers demonstrated to be more sensitive and possessing higher loading capacity than the MIP particles. 100% cholic acid was removed by the nanofibers from standard solutions relative to 80% by the particles. This showed that the nanofibers have better performance than the micro particles and as such have potential to replace the particle based SPE sorbents that are currently in use. All the templates were optimally removed from the prepared MIPs by employing a novel pressurized hot water extraction template removal method that was used for the first time in this thesis. The method employed only water, an environmentally friendly solvent to remove templates to ≥ 99.6% with template residual bleeding of ≤ 0.02%.
- Full Text:
- Date Issued: 2012
Development of tourism diploma in IsiXhosa-speaking students' academic literacies : a multilingual intervention
- Authors: Batyi, Thokozile Thelma
- Date: 2014
- Subjects: Education, Bilingual -- South Africa -- Port Elizabeth , Language and languages -- Study and teaching -- South Africa -- Port Elizabeth , Education -- Study and teaching (Higher) -- South Africa -- Port Elizabeth , Multilingual communication -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:8369 , http://hdl.handle.net/10948/d1020194
- Description: In this study, it is argued that a bi/multilingual instruction is extremely beneficial for bi/multilingual students in higher education in South Africa. Since the adoption of democracy in 1994, cultural and linguistic diversity has become the norm in classrooms at Nelson Mandela Metropolitan University in Port Elizabeth. The testing of bi/multilingual strategies in this study (i.e. translation and development of multilingual glossaries; code-switching by tutor and students during teaching and learning; code-meshing by students online; and reading, speaking and writing bilingually), is an attempt to pedagogically adapt the curriculum to students’ needs. The data was collected from students in their Tourism Communication tutorial. The study was conducted in order to demonstrate that students benefit from bilingual pedagogies, which mobilise isiXhosa and English as languages of learning. Data was collected from tests, a questionnaire and interview, summaries, online discussions, written assignments and reflective journals in order to determine to what extent students’ performance was enhanced by bilingual tuition.
- Full Text:
- Date Issued: 2014
- Authors: Batyi, Thokozile Thelma
- Date: 2014
- Subjects: Education, Bilingual -- South Africa -- Port Elizabeth , Language and languages -- Study and teaching -- South Africa -- Port Elizabeth , Education -- Study and teaching (Higher) -- South Africa -- Port Elizabeth , Multilingual communication -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:8369 , http://hdl.handle.net/10948/d1020194
- Description: In this study, it is argued that a bi/multilingual instruction is extremely beneficial for bi/multilingual students in higher education in South Africa. Since the adoption of democracy in 1994, cultural and linguistic diversity has become the norm in classrooms at Nelson Mandela Metropolitan University in Port Elizabeth. The testing of bi/multilingual strategies in this study (i.e. translation and development of multilingual glossaries; code-switching by tutor and students during teaching and learning; code-meshing by students online; and reading, speaking and writing bilingually), is an attempt to pedagogically adapt the curriculum to students’ needs. The data was collected from students in their Tourism Communication tutorial. The study was conducted in order to demonstrate that students benefit from bilingual pedagogies, which mobilise isiXhosa and English as languages of learning. Data was collected from tests, a questionnaire and interview, summaries, online discussions, written assignments and reflective journals in order to determine to what extent students’ performance was enhanced by bilingual tuition.
- Full Text:
- Date Issued: 2014
The thermodynamics of binary liquid mixtures of compounds containing multiple bonds.
- Authors: Baxter, Rodney Charles
- Date: 1989
- Subjects: Solution (Chemistry)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4531 , http://hdl.handle.net/10962/d1016079
- Description: Excess thermodynamic properties have been determined for several binary liquid mixtures with the aim of testing various thermodynamic theories and postulates. Excess molar enthalpies, HEm, have been determined using an LKB flow microcalorimeter and excess molar volumes, VEm, have been determined using an Anton Paar vibrating tube densitometer. The activity coefficients at infinite dilution ƴ∞₁₃, have been determined using an atmospheric pressure gas-liquid chromatograph. The excess molar enthalpies and the excess molar volumes have been measured at 298.15 K for systems involving the bicyclic compounds decahydronaphthalene (decalin), 1,2,3,4-tetrahydronaphthalene (tetralin), bicyclohexyl, or cyclohexylbenzene mixed with 1- hexene, 1-hexyne, 1-heptene, 1-heptyne, cyclohexene, 1,3-cyclohexadiene, 1,4- cyclohexadiene, or benzene. These excess properties have also been measured for systems where the bicyclic compound has been replaced with benzene, cyclohexane or n-hexane. The results show defmite trends related to the size, shape, and the degree of unsaturation of the component molecules. The Flory theory has been used to predict excess molar enthalpies and excess molar volumes for {(a bicyclic compound or benzene or cyclohexane or n-hexane) +(an n-alkane or a 1-alkene or a 1-alkyne or a cycloalkane or cyclohexene or a cycloalkadiene or benzene)}. The one parameter equations offer reasonably good correlations between the predicted and the experimental results. More insight into the origins of the contnbutions to the excess thermodynamic properties for these systems has been gained by considering the approximate equations of Patterson and co-workers, which separate the interactional and the free volume contributions to the excess molar enthalpy and the excess molar volume. The one parameter equations have adequately rationalized a good deal of the observed behaviour for HEm and VEm. The theory of Liebermann and co-workers, which does not employ any adjustable parameters, has not been as successful at predicting the excess thermodynamic properties for the above systems. The activity coefficients at infinite dilution have been measured at 278.15 K, 288.15 K and 298.15 K for n-bexane, 1-bexene, 1-hexyne, n-heptane, 1-heptene, 1-heptyne, cyclohexane, cyclohexene, 1,3-cyclohexadiene, 1,4-cyclohexadiene, and benzene, in decalin, tetralin, bicyclohexyl, and cyclohexylbenzene. Solvent losses from the column have been accounted for by an extrapolation procedure. The activity coefficient results together with the HEm and VEm values have been used to calculate the partial molar excess thermodynamic properties of mixing at infinite dilution. The partial molar excess properties at infinite dilution for decalin mixtures are similar to those for bicyclohexyl mixtures. There is also a similarity between the properties of the tetralin mixtures and the cyclohexylbenzene mixtures. The cycloalkadienes, benzene and the 1-alkynes exhibit a strong dissociation effect on being mixed with the saturated solvents, decalin and bicyclohexyl, but associate strongly with tetralin and with cyclohexylbenzene. The Flory theory bas been used to predict activity coefficients at infinite dilution from the experimentally determined HEm results for { (n-bexane or 1-hexene or 1-hexyne or naheptane or 1-heptene or 1-beptyne) + (a bicyclic compound)}. The theory is much better at predicting values for mixtures where both components are either saturated molecules or are unsaturated molecules than for {saturated + unsaturated} mixtures.
- Full Text:
- Date Issued: 1989
- Authors: Baxter, Rodney Charles
- Date: 1989
- Subjects: Solution (Chemistry)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4531 , http://hdl.handle.net/10962/d1016079
- Description: Excess thermodynamic properties have been determined for several binary liquid mixtures with the aim of testing various thermodynamic theories and postulates. Excess molar enthalpies, HEm, have been determined using an LKB flow microcalorimeter and excess molar volumes, VEm, have been determined using an Anton Paar vibrating tube densitometer. The activity coefficients at infinite dilution ƴ∞₁₃, have been determined using an atmospheric pressure gas-liquid chromatograph. The excess molar enthalpies and the excess molar volumes have been measured at 298.15 K for systems involving the bicyclic compounds decahydronaphthalene (decalin), 1,2,3,4-tetrahydronaphthalene (tetralin), bicyclohexyl, or cyclohexylbenzene mixed with 1- hexene, 1-hexyne, 1-heptene, 1-heptyne, cyclohexene, 1,3-cyclohexadiene, 1,4- cyclohexadiene, or benzene. These excess properties have also been measured for systems where the bicyclic compound has been replaced with benzene, cyclohexane or n-hexane. The results show defmite trends related to the size, shape, and the degree of unsaturation of the component molecules. The Flory theory has been used to predict excess molar enthalpies and excess molar volumes for {(a bicyclic compound or benzene or cyclohexane or n-hexane) +(an n-alkane or a 1-alkene or a 1-alkyne or a cycloalkane or cyclohexene or a cycloalkadiene or benzene)}. The one parameter equations offer reasonably good correlations between the predicted and the experimental results. More insight into the origins of the contnbutions to the excess thermodynamic properties for these systems has been gained by considering the approximate equations of Patterson and co-workers, which separate the interactional and the free volume contributions to the excess molar enthalpy and the excess molar volume. The one parameter equations have adequately rationalized a good deal of the observed behaviour for HEm and VEm. The theory of Liebermann and co-workers, which does not employ any adjustable parameters, has not been as successful at predicting the excess thermodynamic properties for the above systems. The activity coefficients at infinite dilution have been measured at 278.15 K, 288.15 K and 298.15 K for n-bexane, 1-bexene, 1-hexyne, n-heptane, 1-heptene, 1-heptyne, cyclohexane, cyclohexene, 1,3-cyclohexadiene, 1,4-cyclohexadiene, and benzene, in decalin, tetralin, bicyclohexyl, and cyclohexylbenzene. Solvent losses from the column have been accounted for by an extrapolation procedure. The activity coefficient results together with the HEm and VEm values have been used to calculate the partial molar excess thermodynamic properties of mixing at infinite dilution. The partial molar excess properties at infinite dilution for decalin mixtures are similar to those for bicyclohexyl mixtures. There is also a similarity between the properties of the tetralin mixtures and the cyclohexylbenzene mixtures. The cycloalkadienes, benzene and the 1-alkynes exhibit a strong dissociation effect on being mixed with the saturated solvents, decalin and bicyclohexyl, but associate strongly with tetralin and with cyclohexylbenzene. The Flory theory bas been used to predict activity coefficients at infinite dilution from the experimentally determined HEm results for { (n-bexane or 1-hexene or 1-hexyne or naheptane or 1-heptene or 1-beptyne) + (a bicyclic compound)}. The theory is much better at predicting values for mixtures where both components are either saturated molecules or are unsaturated molecules than for {saturated + unsaturated} mixtures.
- Full Text:
- Date Issued: 1989
Servant leadership: antecedent to Quality of Worklife of customer service frontline employees
- Authors: Bedser, Mark Bernard
- Date: 2018
- Subjects: Call center agents Servant leadership Customer Service -- Quality control Employee morale Job satisfaction Quality of work life
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/62144 , vital:28132
- Description: Contact Centre agents operate in closely monitored and highly controlled environments and their work consists of solving service requests or assisting customers with information on products or services. Consequently their work involves a great deal of emotional labour and stress. It is not surprising then, that the working environment of the Contact Centre is reported to have a negative impact on the levels of Quality of Worklife of Contact Centre agents, and that in the Contact Centre context, it is likely that low levels of Quality of Worklife exist. It is argued that it is important for organisations to be particularly aware of the Quality of Worklife perceptions of their employees should they want to address Quality of Worklife levels and benefit from the positive consequences of higher levels of the construct. Numerous variables are reported to play either an antecedent, moderating, mediating, or consequential role in relation to the Quality of Worklife construct. A systems model of Quality of Worklife is developed, which illustrates the inter-relationships of these variables and how they affect and are affected by the Quality of Worklife construct. It is argued that leadership is an important antecedent to Quality of Worklife, and this is the antecedent of interest in this study. It is proposed that it is not just any leadership that will contribute to an improved Quality of Worklife, particularly within a challenging context such as the Contact Centre environment. Rather, it is suggested that certain qualities of leaders will have a greater influence on Quality of Worklife. For example, leaders who focus on relationships and are caring - characteristics associated with servant leaders - are deemed more suitable for the Contact Centre context. The research also proposes that there are close associations between Servant Leadership and Trust, which in turn has the potential to affect Quality of Worklife positively. It is argued, therefore, that Trust mediates the relationship between Servant Leadership and Quality of Worklife in the customer service frontline context. While there is a broad base of literature available on servant leadership that focuses on the senior or executive level of leadership, Van Dierendonck and Nuijten (2011) have argued that it is also relevant at the middle level of management and have validated an eight dimensional measure of servant leadership that is suitable for this management level. The Van Laar, Edwards and Easton (2007) Quality of Worklife model is also argued to be an appropriate model and measure of the Quality of Worklife construct, due to the robustness of the instrument design and the appropriateness of its underlying theory to the context of this research. Research has shown that leadership can have a significant relationship with Quality of Worklife. Moreover, a review of the literature on servant leadership reveals that trust, satisfaction, general well-being, and commitment to their jobs increases when employees are exposed to leadership behaviours associated with servant leadership. There is however, no evidence in the literature of any investigation of the relationship between Servant Leadership and Quality of Worklife, or of research investigating the partial mediating effects of Trust between these two constructs. Research was conducted to test this relationship. A survey questionnaire was administered amongst a sample of 555 Contact Centre agents, who were employed in eight different organisations. Confirmatory factor analysis procedures were conducted in STATA (V15.0), to test and validate the factor structure of Servant Leadership and Quality of Worklife models. The research also produced a Servant Leadership, Trust and Quality of Worklife structural equation model that supported the hypotheses of the relationships between the constructs. Mediation analysis confirmed Trust’s role as a mediator between Servant Leadership and Quality of Worklife. The structural equation model confirmed that synergies between Servant Leadership, Trust and Quality of Worklife exist, and that Trust partially mediates the relationship between Servant Leadership and Quality of Worklife. It is therefore argued that an increase in Servant Leadership behaviour by the manager or supervisor of frontline staff has a positive association with increases of Trust, as well as positive associations with Quality of Worklife experienced by employees in the frontline context. Moreover, it is also posited that the relationship between Servant Leadership and Quality of Worklife is partially mediated by Trust of the supervisor. The implications of these results are discussed, and recommendations made for management practice and further research.
- Full Text:
- Date Issued: 2018
- Authors: Bedser, Mark Bernard
- Date: 2018
- Subjects: Call center agents Servant leadership Customer Service -- Quality control Employee morale Job satisfaction Quality of work life
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/62144 , vital:28132
- Description: Contact Centre agents operate in closely monitored and highly controlled environments and their work consists of solving service requests or assisting customers with information on products or services. Consequently their work involves a great deal of emotional labour and stress. It is not surprising then, that the working environment of the Contact Centre is reported to have a negative impact on the levels of Quality of Worklife of Contact Centre agents, and that in the Contact Centre context, it is likely that low levels of Quality of Worklife exist. It is argued that it is important for organisations to be particularly aware of the Quality of Worklife perceptions of their employees should they want to address Quality of Worklife levels and benefit from the positive consequences of higher levels of the construct. Numerous variables are reported to play either an antecedent, moderating, mediating, or consequential role in relation to the Quality of Worklife construct. A systems model of Quality of Worklife is developed, which illustrates the inter-relationships of these variables and how they affect and are affected by the Quality of Worklife construct. It is argued that leadership is an important antecedent to Quality of Worklife, and this is the antecedent of interest in this study. It is proposed that it is not just any leadership that will contribute to an improved Quality of Worklife, particularly within a challenging context such as the Contact Centre environment. Rather, it is suggested that certain qualities of leaders will have a greater influence on Quality of Worklife. For example, leaders who focus on relationships and are caring - characteristics associated with servant leaders - are deemed more suitable for the Contact Centre context. The research also proposes that there are close associations between Servant Leadership and Trust, which in turn has the potential to affect Quality of Worklife positively. It is argued, therefore, that Trust mediates the relationship between Servant Leadership and Quality of Worklife in the customer service frontline context. While there is a broad base of literature available on servant leadership that focuses on the senior or executive level of leadership, Van Dierendonck and Nuijten (2011) have argued that it is also relevant at the middle level of management and have validated an eight dimensional measure of servant leadership that is suitable for this management level. The Van Laar, Edwards and Easton (2007) Quality of Worklife model is also argued to be an appropriate model and measure of the Quality of Worklife construct, due to the robustness of the instrument design and the appropriateness of its underlying theory to the context of this research. Research has shown that leadership can have a significant relationship with Quality of Worklife. Moreover, a review of the literature on servant leadership reveals that trust, satisfaction, general well-being, and commitment to their jobs increases when employees are exposed to leadership behaviours associated with servant leadership. There is however, no evidence in the literature of any investigation of the relationship between Servant Leadership and Quality of Worklife, or of research investigating the partial mediating effects of Trust between these two constructs. Research was conducted to test this relationship. A survey questionnaire was administered amongst a sample of 555 Contact Centre agents, who were employed in eight different organisations. Confirmatory factor analysis procedures were conducted in STATA (V15.0), to test and validate the factor structure of Servant Leadership and Quality of Worklife models. The research also produced a Servant Leadership, Trust and Quality of Worklife structural equation model that supported the hypotheses of the relationships between the constructs. Mediation analysis confirmed Trust’s role as a mediator between Servant Leadership and Quality of Worklife. The structural equation model confirmed that synergies between Servant Leadership, Trust and Quality of Worklife exist, and that Trust partially mediates the relationship between Servant Leadership and Quality of Worklife. It is therefore argued that an increase in Servant Leadership behaviour by the manager or supervisor of frontline staff has a positive association with increases of Trust, as well as positive associations with Quality of Worklife experienced by employees in the frontline context. Moreover, it is also posited that the relationship between Servant Leadership and Quality of Worklife is partially mediated by Trust of the supervisor. The implications of these results are discussed, and recommendations made for management practice and further research.
- Full Text:
- Date Issued: 2018
A model for sustainable operational excellence through knowledge management practices and continuous improvement principles
- Beeken, Wilhelm Frederik Hartmann
- Authors: Beeken, Wilhelm Frederik Hartmann
- Date: 2008
- Subjects: Organizational effectiveness , Knowledge management
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: vital:8699 , http://hdl.handle.net/10948/1061 , Organizational effectiveness , Knowledge management
- Description: Integrating Knowledge Management maturity with associated Continuous Improvement efforts in order to remain competitive, is absent in most Operational Excellence initiatives. Furthermore, the intertwined relationship of Continuous Improvement and work development becomes a crucial focus area for organisations that wish to establish a continuously evolving management system consisting of core values, methodologies and tools with the aim of creating more satisfied customers with less resources. The old industrial paradigm that focused on labour, capital, materials, and energy viewed technology and knowledge as external influences on production. This framework is now being challenged and a new trend is emerging. This trend seeks to transform the old industrial system to that of a knowledge-based which one can lead to innovation and hence economic advantage. Continuous Improvement as a concept has roots in many other fields, including social-technical system design, human relations progress and the discussion surrounding ‘lean manufacturing’. This study will focus on Continuous Improvement as a noun, referring to on the outcome of the process of a stream of emergent innovations. The primary objective of the study is to create a model that will present an organisation with a three-layer knowledge reference process grid, which will align and depict the surrounding business knowledge functions, knowledge-enabling processes and knowledge-manipulating processes aiming for enabling Operational Excellence. This study promotes the theory that the cognitive domain layer, functional domain layer and resources layer of an organisation can be increasingly stimulated by focusing effort through Continuous Improvement routines towards the associated inter-organisational knowledge processes sustaining Operational Excellence. The proposed model is structured to review, compare, evaluate and integrate existing Knowledge Management practices of ii an organisation within the context of clear definitions for important concepts of Knowledge Management. Additionally the model provides an assessment instrument for evaluating the organisation’s Knowledge Management maturity level. The study concerns itself with two concepts towards business value creation which will lead to increased Operational Excellence. Firstly, the maturity of Knowledge Management processes, and secondly the level of the organisation wide process of focused and continuous incremental improvement namely, Continuous Improvement. A case study with PriceWaterhouseCoopers was concluded and an on-line Internet survey was used with a stratified sample from knowledge workers to test the factors from both a Knowledge Management and Continuous Improvement perspective. These factors were verified by means of a hypotheses network, describing in a structured and descriptive way, the importance of Knowledge Management and Continuous Improvement collectively on sustainable Operational Excellence as an integral development of Operational Excellence. With respect to Knowledge Management practices, the hypothesis network proposed at least three domains, which of knowledge generation, knowledge mobilisation and knowledge application as important input to the proposed process grid of knowledge development and associated layer elements. From a Continuous Improvement principles perspective it is apparent that elements from Continuous Improvement routines and Continuous Improvement characteristics are associated with the organisation Continuous Improvement ability. These findings are also a result of the deliberate design of processes, tools, structures and environments with the intent to increase, renew, share or improve the use of knowledge represented in any of the three elements for structural, human and social of intellectual capital. The proposed model combines the framework of the Boyd cycle as it is conceptualized as self-assessment activities, for it becomes possible to use them as basis of a self-assessment with sense making navigational properties across iii the proposed knowledge process grid for the model. The model will facilitate the concept of a three-layer knowledge reference process grid, which represents the main components of the knowledge processes within the cognitive domain layer, functional layer and resources layer of an organisation. The proposed model will deliver a single value that co-exists with the Knowledge Management maturity level and Continuous Improvement readiness index rating attained. Logical relationships to dynamic, evolving and flexible enabling Knowledge Management practices for each layer of the proposed three-layer knowledge reference process grid will be integrated as output of the proposed model. The research has limitations as Knowledge Management practices were measured using a subjective norm scale. It is suggested that a more comprehensive measure of Knowledge Management maturity processes may be needed to represent this construct. The complexity of the proposed model and the number of associated variables included in the results need further confirmation using possible multiple samples and additional measures of Knowledge Management maturity and Continuous Improvement readiness elements. The benefit of the proposed model as a practical Operational Excellence tool is to overcome the perceived gap of implementing Knowledge Management practices and Continuous Improvement principles collectively to deliver and sustain Operational Excellence.
- Full Text:
- Date Issued: 2008
- Authors: Beeken, Wilhelm Frederik Hartmann
- Date: 2008
- Subjects: Organizational effectiveness , Knowledge management
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: vital:8699 , http://hdl.handle.net/10948/1061 , Organizational effectiveness , Knowledge management
- Description: Integrating Knowledge Management maturity with associated Continuous Improvement efforts in order to remain competitive, is absent in most Operational Excellence initiatives. Furthermore, the intertwined relationship of Continuous Improvement and work development becomes a crucial focus area for organisations that wish to establish a continuously evolving management system consisting of core values, methodologies and tools with the aim of creating more satisfied customers with less resources. The old industrial paradigm that focused on labour, capital, materials, and energy viewed technology and knowledge as external influences on production. This framework is now being challenged and a new trend is emerging. This trend seeks to transform the old industrial system to that of a knowledge-based which one can lead to innovation and hence economic advantage. Continuous Improvement as a concept has roots in many other fields, including social-technical system design, human relations progress and the discussion surrounding ‘lean manufacturing’. This study will focus on Continuous Improvement as a noun, referring to on the outcome of the process of a stream of emergent innovations. The primary objective of the study is to create a model that will present an organisation with a three-layer knowledge reference process grid, which will align and depict the surrounding business knowledge functions, knowledge-enabling processes and knowledge-manipulating processes aiming for enabling Operational Excellence. This study promotes the theory that the cognitive domain layer, functional domain layer and resources layer of an organisation can be increasingly stimulated by focusing effort through Continuous Improvement routines towards the associated inter-organisational knowledge processes sustaining Operational Excellence. The proposed model is structured to review, compare, evaluate and integrate existing Knowledge Management practices of ii an organisation within the context of clear definitions for important concepts of Knowledge Management. Additionally the model provides an assessment instrument for evaluating the organisation’s Knowledge Management maturity level. The study concerns itself with two concepts towards business value creation which will lead to increased Operational Excellence. Firstly, the maturity of Knowledge Management processes, and secondly the level of the organisation wide process of focused and continuous incremental improvement namely, Continuous Improvement. A case study with PriceWaterhouseCoopers was concluded and an on-line Internet survey was used with a stratified sample from knowledge workers to test the factors from both a Knowledge Management and Continuous Improvement perspective. These factors were verified by means of a hypotheses network, describing in a structured and descriptive way, the importance of Knowledge Management and Continuous Improvement collectively on sustainable Operational Excellence as an integral development of Operational Excellence. With respect to Knowledge Management practices, the hypothesis network proposed at least three domains, which of knowledge generation, knowledge mobilisation and knowledge application as important input to the proposed process grid of knowledge development and associated layer elements. From a Continuous Improvement principles perspective it is apparent that elements from Continuous Improvement routines and Continuous Improvement characteristics are associated with the organisation Continuous Improvement ability. These findings are also a result of the deliberate design of processes, tools, structures and environments with the intent to increase, renew, share or improve the use of knowledge represented in any of the three elements for structural, human and social of intellectual capital. The proposed model combines the framework of the Boyd cycle as it is conceptualized as self-assessment activities, for it becomes possible to use them as basis of a self-assessment with sense making navigational properties across iii the proposed knowledge process grid for the model. The model will facilitate the concept of a three-layer knowledge reference process grid, which represents the main components of the knowledge processes within the cognitive domain layer, functional layer and resources layer of an organisation. The proposed model will deliver a single value that co-exists with the Knowledge Management maturity level and Continuous Improvement readiness index rating attained. Logical relationships to dynamic, evolving and flexible enabling Knowledge Management practices for each layer of the proposed three-layer knowledge reference process grid will be integrated as output of the proposed model. The research has limitations as Knowledge Management practices were measured using a subjective norm scale. It is suggested that a more comprehensive measure of Knowledge Management maturity processes may be needed to represent this construct. The complexity of the proposed model and the number of associated variables included in the results need further confirmation using possible multiple samples and additional measures of Knowledge Management maturity and Continuous Improvement readiness elements. The benefit of the proposed model as a practical Operational Excellence tool is to overcome the perceived gap of implementing Knowledge Management practices and Continuous Improvement principles collectively to deliver and sustain Operational Excellence.
- Full Text:
- Date Issued: 2008
Enhanced visualisation techniques to support access to personal information across multiple devices
- Authors: Beets, Simone Yvonne
- Date: 2014
- Subjects: Information visualisation , Database management , Web services , Personal information management
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10500 , http://hdl.handle.net/10948/d1021136
- Description: The increasing number of devices owned by a single user makes it increasingly difficult to access, organise and visualise personal information (PI), i.e. documents and media, across these devices. The primary method that is currently used to organise and visualise PI is the hierarchical folder structure, which is a familiar and widely used means to manage PI. However, this hierarchy does not effectively support personal information management (PIM) across multiple devices. Current solutions, such as the Personal Information Dashboard and Stuff I’ve Seen, do not support PIM across multiple devices. Alternative PIM tools, such as Dropbox and TeamViewer, attempt to provide a means of accessing PI across multiple devices, but these solutions also suffer from several limitations. The aim of this research was to investigate to what extent enhanced information visualisation (IV) techniques could be used to support accessing PI across multiple devices. An interview study was conducted to identify how PI is currently managed across multiple devices. This interview study further motivated the need for a tool to support visualising PI across multiple devices and identified requirements for such an IV tool. Several suitable IV techniques were selected and enhanced to support PIM across multiple devices. These techniques comprised an Overview using a nested circles layout, a Tag Cloud and a Partition Layout, which used a novel set-based technique. A prototype, called MyPSI, was designed and implemented incorporating these enhanced IV techniques. The requirements and design of the MyPSI prototype were validated using a conceptual walkthrough. The design of the MyPSI prototype was initially implemented for a desktop or laptop device with mouse-based interaction. A sample personal space of information (PSI) was used to evaluate the prototype in a controlled user study. The user study was used to identify any usability problems with the MyPSI prototype. The results were highly positive and the participants agreed that such a tool could be useful in future. No major problems were identified with the prototype. The MyPSI prototype was then implemented on a mobile device, specifically an Android tablet device, using a similar design, but supporting touch-based interaction. Users were allowed to upload their own PSI using Dropbox, which was visualised by the MyPSI prototype. A field study was conducted following the Multi-dimensional In-depth Long-term Case Studies approach specifically designed for IV evaluation. The field study was conducted over a two-week period, evaluating both the desktop and mobile versions of the MyPSI prototype. Both versions received positive results, but the desktop version was slightly preferred over the mobile version, mainly due to familiarity and problems experienced with the mobile implementation. Design recommendations were derived to inform future designs of IV tools to support accessing PI across multiple devices. This research has shown that IV techniques can be enhanced to effectively support accessing PI across multiple devices. Future work will involve customising the MyPSI prototype for mobile phones and supporting additional platforms.
- Full Text:
- Date Issued: 2014
- Authors: Beets, Simone Yvonne
- Date: 2014
- Subjects: Information visualisation , Database management , Web services , Personal information management
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10500 , http://hdl.handle.net/10948/d1021136
- Description: The increasing number of devices owned by a single user makes it increasingly difficult to access, organise and visualise personal information (PI), i.e. documents and media, across these devices. The primary method that is currently used to organise and visualise PI is the hierarchical folder structure, which is a familiar and widely used means to manage PI. However, this hierarchy does not effectively support personal information management (PIM) across multiple devices. Current solutions, such as the Personal Information Dashboard and Stuff I’ve Seen, do not support PIM across multiple devices. Alternative PIM tools, such as Dropbox and TeamViewer, attempt to provide a means of accessing PI across multiple devices, but these solutions also suffer from several limitations. The aim of this research was to investigate to what extent enhanced information visualisation (IV) techniques could be used to support accessing PI across multiple devices. An interview study was conducted to identify how PI is currently managed across multiple devices. This interview study further motivated the need for a tool to support visualising PI across multiple devices and identified requirements for such an IV tool. Several suitable IV techniques were selected and enhanced to support PIM across multiple devices. These techniques comprised an Overview using a nested circles layout, a Tag Cloud and a Partition Layout, which used a novel set-based technique. A prototype, called MyPSI, was designed and implemented incorporating these enhanced IV techniques. The requirements and design of the MyPSI prototype were validated using a conceptual walkthrough. The design of the MyPSI prototype was initially implemented for a desktop or laptop device with mouse-based interaction. A sample personal space of information (PSI) was used to evaluate the prototype in a controlled user study. The user study was used to identify any usability problems with the MyPSI prototype. The results were highly positive and the participants agreed that such a tool could be useful in future. No major problems were identified with the prototype. The MyPSI prototype was then implemented on a mobile device, specifically an Android tablet device, using a similar design, but supporting touch-based interaction. Users were allowed to upload their own PSI using Dropbox, which was visualised by the MyPSI prototype. A field study was conducted following the Multi-dimensional In-depth Long-term Case Studies approach specifically designed for IV evaluation. The field study was conducted over a two-week period, evaluating both the desktop and mobile versions of the MyPSI prototype. Both versions received positive results, but the desktop version was slightly preferred over the mobile version, mainly due to familiarity and problems experienced with the mobile implementation. Design recommendations were derived to inform future designs of IV tools to support accessing PI across multiple devices. This research has shown that IV techniques can be enhanced to effectively support accessing PI across multiple devices. Future work will involve customising the MyPSI prototype for mobile phones and supporting additional platforms.
- Full Text:
- Date Issued: 2014
Conditions enabling or constraining the exercise of agency among new academics in higher education, conducive to the social inclusion of students
- Authors: Behari-Leak, Kasturi
- Date: 2015
- Subjects: Social integration -- South Africa , Students -- South Africa -- Social conditions , Educational change -- South Africa , College teachers -- South Africa , Education, Higher -- South Africa , Critical realism , Social realism , Agent (Philosophy)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1333 , http://hdl.handle.net/10962/d1020295
- Description: This study, which is part of a National Research Foundation project on Social Inclusion in Higher Education (HE), focuses on the exercise of agency among new academics, conducive to the social inclusion of students. Transitioning from varied entry points into higher education, new academics face numerous challenges as they embed themselves in disciplinary and institutional contexts. Given the complexity and contested nature of the current higher education landscape, new academics are especially vulnerable. Using Roy Bhaskar’s critical realism as meta-theoretical framing and Margaret Archer’s social realist theory, with its methodological focus on analytical dualism and morphogenesis, this study offers a social realist account of how new academics engage with enabling and constraining conditions at institutional, faculty, departmental and classroom levels. Through an analysis of six individual narratives of mediation, this study explicates and exemplifies the range of agential choices exercised by new academics to mediate their contested spaces. A nuanced social and critical account of the material, ideational and agential conditions in HE shows that the courses of action taken by these new academics are driven through their concerns, commitments and projects in higher education. Yet, despite the university’s espousal of embracing change, the current induction and transition of new academics is inadequate to the task of transformation in higher education. Systemic conditions in HE, conducive to critical agency and social justice, are not enabling. Bhaskar’s Seven Scalar Being, used as an analytical frame and heuristic, guides the cross-case analysis of the six narratives across seven levels of ontology. The findings highlight that, despite difficult contextual influences, the positive exercise of agency is a marked feature of new participants in HE in this study. This has immediate implications for ways in which professional and academic development, and disciplinary and departmental programmes, could create and sustain conducive conditions for the professionalisation of new academics through more sensitised practices. Using alternative research methods such as photovoice to generate its data, this doctoral study proposes that new research methodologies, located in the third space, are needed now more than ever in HE sociological research, to recognise the researcher and the research participants as independent, autonomous and causally efficacious beings. To this end, this study includes a Chapter Zero, which captures the narrative of the doctoral scholar as researcher, who, shaped and influenced by established doctoral practices and traditions in the field, exercises her own doctoral agency in particular ways.
- Full Text:
- Date Issued: 2015
- Authors: Behari-Leak, Kasturi
- Date: 2015
- Subjects: Social integration -- South Africa , Students -- South Africa -- Social conditions , Educational change -- South Africa , College teachers -- South Africa , Education, Higher -- South Africa , Critical realism , Social realism , Agent (Philosophy)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1333 , http://hdl.handle.net/10962/d1020295
- Description: This study, which is part of a National Research Foundation project on Social Inclusion in Higher Education (HE), focuses on the exercise of agency among new academics, conducive to the social inclusion of students. Transitioning from varied entry points into higher education, new academics face numerous challenges as they embed themselves in disciplinary and institutional contexts. Given the complexity and contested nature of the current higher education landscape, new academics are especially vulnerable. Using Roy Bhaskar’s critical realism as meta-theoretical framing and Margaret Archer’s social realist theory, with its methodological focus on analytical dualism and morphogenesis, this study offers a social realist account of how new academics engage with enabling and constraining conditions at institutional, faculty, departmental and classroom levels. Through an analysis of six individual narratives of mediation, this study explicates and exemplifies the range of agential choices exercised by new academics to mediate their contested spaces. A nuanced social and critical account of the material, ideational and agential conditions in HE shows that the courses of action taken by these new academics are driven through their concerns, commitments and projects in higher education. Yet, despite the university’s espousal of embracing change, the current induction and transition of new academics is inadequate to the task of transformation in higher education. Systemic conditions in HE, conducive to critical agency and social justice, are not enabling. Bhaskar’s Seven Scalar Being, used as an analytical frame and heuristic, guides the cross-case analysis of the six narratives across seven levels of ontology. The findings highlight that, despite difficult contextual influences, the positive exercise of agency is a marked feature of new participants in HE in this study. This has immediate implications for ways in which professional and academic development, and disciplinary and departmental programmes, could create and sustain conducive conditions for the professionalisation of new academics through more sensitised practices. Using alternative research methods such as photovoice to generate its data, this doctoral study proposes that new research methodologies, located in the third space, are needed now more than ever in HE sociological research, to recognise the researcher and the research participants as independent, autonomous and causally efficacious beings. To this end, this study includes a Chapter Zero, which captures the narrative of the doctoral scholar as researcher, who, shaped and influenced by established doctoral practices and traditions in the field, exercises her own doctoral agency in particular ways.
- Full Text:
- Date Issued: 2015
Improving the supply of subsidised housing in South Africa
- Authors: Bekker, Jakobus Petrus
- Date: 2017
- Subjects: Housing -- South Africa Housing subsidies -- South Africa , Low-income housing -- South Africa Public housing -- South Africa Housing development -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19553 , vital:28893
- Description: Despite South African citizen’s constitutional right to adequate housing, Government’s housing delivery has been described as a complex, multi-stakeholder, multi-phase problem, exacerbated by political interference and corruption. Housing delivery in South Africa is ideologically and politically designed and executed. However, the government subsidised housing sector remains plagued by: huge and increasing backlogs; corruption; quality concerns, and recipient and stakeholder dissatisfaction. This includes the government subsidised housing construction sector, which faces issues such as: established contractors leaving the sector; late and failed completion; substandard quality; rework; cost overruns; late progress payments; and insolvencies. Moreover, government subsidised housing officials, which forms part of this sector, must contend with abandoned projects and appointing new contractors; shoddy workmanship from sub-standard contractors; remedial work, including demolition and rebuilding; and systemic problems such as staff shortages and under qualified staff. The process of Government’s ideological and political designed and execution may therefore not have considered certain practicalities relative to construction principles and practice. It therefore appears that there may be some relationship between the compatibility of Government’s housing ideological and political designed (policy) and execution and general construction principles and practice. It is clear from the related literature that government subsidised housing construction has mostly been investigated as an exercise observing from the outside in, and not from a construction sector perspective. The main purpose of this study is thus to explore housing policy and practice compatibility as a major obstacle to housing delivery in general and assess whether the current housing policy is sufficiently responsive to the requirements of the government subsidised housing sector by specifically describing and exploring the effects of Government’s housing procurement policies relative to the ability of the construction sector to supply government subsidised housing. More specifically, the study describes and explores corruption, quality; contractors and worker competency, and government capacity as specific consequences of housing policy and practice incompatibility, as well as factors contributing to recipient dissatisfaction and the housing backlog. Finally, based on the finding, a proposed framework for improving the supply of subsidised housing in South Africa has been developed. The methodology for this study adopted a post-positivist philosophy, embracing a quantitative approach using questionnaires, which incorporated mainly five-point Likert type scale, but also multiple-choice questions, as instruments for data collection. Three surveys were conducted, starting with a pilot study and followed by a primary study, during which a total of 2 884 potential participants within the construction sector across South Africa were randomly sampled and solicited to participate, of which 284 responded. The respondents consisted of four groups: general contractors (76); government housing officials (34); built environment professionals (137), and built environment suppliers (37). An electronic questionnaire was sent by email to all potential participants and allowed four weeks to complete the survey. Furthermore, a housing recipient survey was conducted among 100 randomly selected recipients of government subsidised housing in the Nelson Mandela Metropolitan area, by means of a structured interview using a paper based questionnaire, over a period of two weeks. The primary outcome measures used for this study were the ranked mean scores for mainly descriptive analysis and the Chi-square test, the 𝑡-test, Cohan’s d test, ANOVA and Scheffé test, using Cronbach's alpha as a measure of internal consistency of scale and validity, for inferential analyses and hypotheses testing. Hypothesis testing was founded upon Government’s worldview that its policies will not influence the operations of the construction sector relative to housing construction, and therefore tested respondents’ perspectives with respect to the impact that government policies have in terms of contractor operations and contractor success, as well as its contribution towards the housing backlog, substandard housing, recipient dissatisfaction and corruption. The following results were obtained by means of the hypothesis testing:Government housing procurement policies are inappropriate for application in the government subsidised housing sector. Respondents therefore disagree with the notion that government policy and practices do not impact contractor operations and contractor success, and thus the supply of houses; The application of government housing procurement policies leads to inadequate quality. Respondents therefore disagree with the notion that government preferential procurement policies do not impact quality; Government’s housing procurement policies inappropriately target emerging contractors. Respondents therefore disagree with the notion that Government’s targeting of emerging contractors does not impact housing supply; Government has inadequate capacity to address subsidised housing construction sector requirements in terms of housing projects. Respondents therefore disagree with the notion that Government has the capacity to address subsidised housing construction sector requirements in the supply of housing, and Government subsidised houses do not meet recipients’ expectations. Respondents therefore disagree with the notion that government subsidised houses do meet recipients’ expectations. It thus became apparent that housing supply is mostly inhibited by Government’s housing procurement policy, contributing to various factors, such as quality capability, contractor capability, systemic and administrative capacity, and resulting in recipient dissatisfaction. Using Pearson’s product moment correlation, a framework model was developed to illustrate the process flow, which revealed definitive statistical and practical relationships between these factors, and indeed reflects complex relationships between factors inhibiting supply and resulting in recipient dissatisfaction. To find an appropriate framework model for the purpose of improving housing supply, various sources were consulted. Based on the research question, together with the aims and objectives for this study, as well as the realisation that the problems associated with housing supply relate to the project management of the construction phase, which requires interventions for improving supply, it was decided that a results framework would be the most appropriate for this purpose. The proposed framework is therefore a graphical depiction of how the research process may be used to identify problems in the government subsidised housing sector, questioning how these may be resolved, setting strategies to improve the situation, evolving hypotheses and testing these hypotheses to establish the critical factors to be considered in the process of resolving the problem in the housing sector, by means of implementation and feedback.
- Full Text:
- Date Issued: 2017
- Authors: Bekker, Jakobus Petrus
- Date: 2017
- Subjects: Housing -- South Africa Housing subsidies -- South Africa , Low-income housing -- South Africa Public housing -- South Africa Housing development -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19553 , vital:28893
- Description: Despite South African citizen’s constitutional right to adequate housing, Government’s housing delivery has been described as a complex, multi-stakeholder, multi-phase problem, exacerbated by political interference and corruption. Housing delivery in South Africa is ideologically and politically designed and executed. However, the government subsidised housing sector remains plagued by: huge and increasing backlogs; corruption; quality concerns, and recipient and stakeholder dissatisfaction. This includes the government subsidised housing construction sector, which faces issues such as: established contractors leaving the sector; late and failed completion; substandard quality; rework; cost overruns; late progress payments; and insolvencies. Moreover, government subsidised housing officials, which forms part of this sector, must contend with abandoned projects and appointing new contractors; shoddy workmanship from sub-standard contractors; remedial work, including demolition and rebuilding; and systemic problems such as staff shortages and under qualified staff. The process of Government’s ideological and political designed and execution may therefore not have considered certain practicalities relative to construction principles and practice. It therefore appears that there may be some relationship between the compatibility of Government’s housing ideological and political designed (policy) and execution and general construction principles and practice. It is clear from the related literature that government subsidised housing construction has mostly been investigated as an exercise observing from the outside in, and not from a construction sector perspective. The main purpose of this study is thus to explore housing policy and practice compatibility as a major obstacle to housing delivery in general and assess whether the current housing policy is sufficiently responsive to the requirements of the government subsidised housing sector by specifically describing and exploring the effects of Government’s housing procurement policies relative to the ability of the construction sector to supply government subsidised housing. More specifically, the study describes and explores corruption, quality; contractors and worker competency, and government capacity as specific consequences of housing policy and practice incompatibility, as well as factors contributing to recipient dissatisfaction and the housing backlog. Finally, based on the finding, a proposed framework for improving the supply of subsidised housing in South Africa has been developed. The methodology for this study adopted a post-positivist philosophy, embracing a quantitative approach using questionnaires, which incorporated mainly five-point Likert type scale, but also multiple-choice questions, as instruments for data collection. Three surveys were conducted, starting with a pilot study and followed by a primary study, during which a total of 2 884 potential participants within the construction sector across South Africa were randomly sampled and solicited to participate, of which 284 responded. The respondents consisted of four groups: general contractors (76); government housing officials (34); built environment professionals (137), and built environment suppliers (37). An electronic questionnaire was sent by email to all potential participants and allowed four weeks to complete the survey. Furthermore, a housing recipient survey was conducted among 100 randomly selected recipients of government subsidised housing in the Nelson Mandela Metropolitan area, by means of a structured interview using a paper based questionnaire, over a period of two weeks. The primary outcome measures used for this study were the ranked mean scores for mainly descriptive analysis and the Chi-square test, the 𝑡-test, Cohan’s d test, ANOVA and Scheffé test, using Cronbach's alpha as a measure of internal consistency of scale and validity, for inferential analyses and hypotheses testing. Hypothesis testing was founded upon Government’s worldview that its policies will not influence the operations of the construction sector relative to housing construction, and therefore tested respondents’ perspectives with respect to the impact that government policies have in terms of contractor operations and contractor success, as well as its contribution towards the housing backlog, substandard housing, recipient dissatisfaction and corruption. The following results were obtained by means of the hypothesis testing:Government housing procurement policies are inappropriate for application in the government subsidised housing sector. Respondents therefore disagree with the notion that government policy and practices do not impact contractor operations and contractor success, and thus the supply of houses; The application of government housing procurement policies leads to inadequate quality. Respondents therefore disagree with the notion that government preferential procurement policies do not impact quality; Government’s housing procurement policies inappropriately target emerging contractors. Respondents therefore disagree with the notion that Government’s targeting of emerging contractors does not impact housing supply; Government has inadequate capacity to address subsidised housing construction sector requirements in terms of housing projects. Respondents therefore disagree with the notion that Government has the capacity to address subsidised housing construction sector requirements in the supply of housing, and Government subsidised houses do not meet recipients’ expectations. Respondents therefore disagree with the notion that government subsidised houses do meet recipients’ expectations. It thus became apparent that housing supply is mostly inhibited by Government’s housing procurement policy, contributing to various factors, such as quality capability, contractor capability, systemic and administrative capacity, and resulting in recipient dissatisfaction. Using Pearson’s product moment correlation, a framework model was developed to illustrate the process flow, which revealed definitive statistical and practical relationships between these factors, and indeed reflects complex relationships between factors inhibiting supply and resulting in recipient dissatisfaction. To find an appropriate framework model for the purpose of improving housing supply, various sources were consulted. Based on the research question, together with the aims and objectives for this study, as well as the realisation that the problems associated with housing supply relate to the project management of the construction phase, which requires interventions for improving supply, it was decided that a results framework would be the most appropriate for this purpose. The proposed framework is therefore a graphical depiction of how the research process may be used to identify problems in the government subsidised housing sector, questioning how these may be resolved, setting strategies to improve the situation, evolving hypotheses and testing these hypotheses to establish the critical factors to be considered in the process of resolving the problem in the housing sector, by means of implementation and feedback.
- Full Text:
- Date Issued: 2017
The antifungal activity of an aqueous Tulbaghia violacea plant extract against Aspergillus flavus
- Authors: Belewa, Xoliswa Vuyokazi
- Date: 2015
- Subjects: Medicinal plants , Antifungal agents , Fungi -- Biotechnology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/5858 , vital:21001
- Description: Phytochemical analysis of both HEA1 and the crude plant extract showed the presence of phenolics, tannins and saponins. Saponins were the predominant secondary metabolites and were mostly abundant in the plant extract and to a lesser extent in the active compound. Steroidal saponins, tannins and phenolics were also detected in the plant extract, but only the phenolics were detected in the active compound. The results of the phytochemical analysis showed that those compounds that were not present in the active compound could be removed from the crude extract during the TLC purification process. Investigation on the mechanism of action of the crude plant extract on the sterol production by A. flavus showed that the plant extract affected ergosterol biosynthesis by causing an accumulation of oxidosqualene in the ergosterol biosynthetic pathway resulting in a decline in ergosterol production. An oscillatory response in lanosterol production was observed in the presence of the plant extract, which may be an adaptation mechanism of A. flavus to unfavourable conditions and compensation for the loss of enzyme activity which may have occurred as a result of the accumulation of oxidosqualene. The antifungal activity of the plant extract on ergosterol production by A. flavus may also be due to saponins which target the cell membrane and ergosterol production in fungi. The effect of the plant extract on the fungal cell wall of A. flavus also showed that the plant extract caused a decline in β-(1, 3) glucan production by inhibiting β-glucan synthase. The plant extract also affected the chitin synthesis pathway of A. flavus, by causing a decline in chitin production, which was due to the inhibition of chitin synthase. Investigation of chitinase production using 4MU substrates showed that the plant extract caused an accumulation of chitobioses, by activating chitobiosidases and endochitinases. A decline in N-acetylglucosaminidase activity in the presence of the plant extract was observed and this prevented the formation of N-acetylglucosamine. The accumulation of chitobiosidase and endochitinase may be as a result of autolysis that may be triggered by A. flavus as a survival mechanism in the presence of the plant extract and as a compensatory mechanism for the loss of β-glucans and chitin. The antifungal effect of the plant extract on various components of the cell wall of A. flavus, makes T. violacea aqueous plant extract an ideal chemotherapeutic agent against both human and plant pathogens of Aspergillus. The broad spectrum of antifungal activity of T. violacea against A. flavus also eliminates any chances of the fungus developing resistance towards it and would make it a candidate for use as a potential antifungal agent. Further identification and possible chemical synthesis is needed to shed light on the safety and efficacy of the active compound for further development as a chemotherapeutic agent.
- Full Text:
- Date Issued: 2015
- Authors: Belewa, Xoliswa Vuyokazi
- Date: 2015
- Subjects: Medicinal plants , Antifungal agents , Fungi -- Biotechnology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/5858 , vital:21001
- Description: Phytochemical analysis of both HEA1 and the crude plant extract showed the presence of phenolics, tannins and saponins. Saponins were the predominant secondary metabolites and were mostly abundant in the plant extract and to a lesser extent in the active compound. Steroidal saponins, tannins and phenolics were also detected in the plant extract, but only the phenolics were detected in the active compound. The results of the phytochemical analysis showed that those compounds that were not present in the active compound could be removed from the crude extract during the TLC purification process. Investigation on the mechanism of action of the crude plant extract on the sterol production by A. flavus showed that the plant extract affected ergosterol biosynthesis by causing an accumulation of oxidosqualene in the ergosterol biosynthetic pathway resulting in a decline in ergosterol production. An oscillatory response in lanosterol production was observed in the presence of the plant extract, which may be an adaptation mechanism of A. flavus to unfavourable conditions and compensation for the loss of enzyme activity which may have occurred as a result of the accumulation of oxidosqualene. The antifungal activity of the plant extract on ergosterol production by A. flavus may also be due to saponins which target the cell membrane and ergosterol production in fungi. The effect of the plant extract on the fungal cell wall of A. flavus also showed that the plant extract caused a decline in β-(1, 3) glucan production by inhibiting β-glucan synthase. The plant extract also affected the chitin synthesis pathway of A. flavus, by causing a decline in chitin production, which was due to the inhibition of chitin synthase. Investigation of chitinase production using 4MU substrates showed that the plant extract caused an accumulation of chitobioses, by activating chitobiosidases and endochitinases. A decline in N-acetylglucosaminidase activity in the presence of the plant extract was observed and this prevented the formation of N-acetylglucosamine. The accumulation of chitobiosidase and endochitinase may be as a result of autolysis that may be triggered by A. flavus as a survival mechanism in the presence of the plant extract and as a compensatory mechanism for the loss of β-glucans and chitin. The antifungal effect of the plant extract on various components of the cell wall of A. flavus, makes T. violacea aqueous plant extract an ideal chemotherapeutic agent against both human and plant pathogens of Aspergillus. The broad spectrum of antifungal activity of T. violacea against A. flavus also eliminates any chances of the fungus developing resistance towards it and would make it a candidate for use as a potential antifungal agent. Further identification and possible chemical synthesis is needed to shed light on the safety and efficacy of the active compound for further development as a chemotherapeutic agent.
- Full Text:
- Date Issued: 2015
Understanding the learning that occurs through up-skilling opportunities and practices in the marine sector of South Africa
- Authors: Bell, Caroline Margaret
- Date: 2019
- Subjects: Biodiversity conservation -- South Africa , Human capital -- South Africa , Marine sciences -- Employees -- South Africa -- Training of , Biodiversity Human Capital Development Strategy (South Africa)
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/93966 , vital:30977
- Description: South Africa is characterised by cultural and biological diversity which constitute a unique context in which to conduct educational research, such as this doctoral study looking at human capital development in the marine biodiversity context. The drive for transformation in the country is also a major factor to consider when researching any sector of the economy, in this case, the biodiversity sector. The biodiversity sector includes organisations involved in biodiversity conservation, research and management. Previous research in the sector has found a clear need for well-thought out workplace skills plans within conservation and research organisations. The national Biodiversity Human Capital Development Strategy that was produced in 2010 by the South African National Biodiversity Institute outlines how all the organisations involved in the biodiversity sector of South Africa need to participate in strengthening the sector through a range of human capital development strategies. This includes extending the existing human capacity of managers and scientists who are already in the workplace, i.e. up-skilling. In particular, ‘scarce’ skills, as identified by the national Environmental Sector Skills Plan need further attention and development. The scarce skills relevant to this study are: protected area managers; ecosystem managers and post-graduate researchers, hence the focus on managers and scientists in this research. The marine sector falls within the biodiversity sector and it faces multiple conservation challenges which are complex and it is therefore essential to have skilled and capable managers and scientists in place. By investigating the up-skilling opportunities and practices available to these marine professionals, the goal is to understand if and how learning takes place in the marine sector of South Africa. The main research question of this study is: How do up-skilling opportunities and practices enable learning in, through and for the workplace, by marine professionals? In addition, three sub-questions provide finer details and introduce the central concepts of the research: I. What up-skilling opportunities and professional practices exist in or for, marine research and conservation organisations and how are they constituted and enacted via practice-based sayings, doings and relatings? II. How do the individuals learn and exercise their agency within the socio-material realities of the marine scientific and management context, through making use of up-skilling opportunities that are both formal (e.g. course based) and informal? III. How do generative mechanisms shape the constitution and enactment of up-skilling opportunities and practices, and the learning and agency of marine professionals (scientists and managers)? The theoretical work of this study consisted of, first, considering sensitising concepts which included: defining skill and knowledge; considering what an up-skilling opportunity might look like; workplace learning (both formal and informal learning); professional practices, lifelong learning or adult education, and agency in the workplace. Critical realism was then employed as the meta-theory that underlabours this research, while the substantive theories used for analysis purposes were socio-materialism and practice theory. Of course, critical realism is a socio-material theory itself, and Bhaskar’s four-planar social being or Social Cube was used to interpret and synthesise the findings in the data chapters. The methodological framework of this study explores the implications of critical realism for research design and analysis and includes a contextual profiling phase, semi-structured interviews, analysis of documents and peer-reviewed papers, as well as observations. There are nine case studies that form the focus of this research and in total 18 research participants were involved. Data analysis included abduction and retroduction as the primary modes of inference and the main analytical tool was the framework of practice architectures where I took the ‘sayings’, ‘doings’ and ‘relatings’ as themes. Further themes were developed from the other relevant theories used in this study; hence socio-materialism, learning, agency, and formal and informal opportunities, were also used as themes when coding the data. Issues around validity, ethics and reflexivity are key elements of the research design and were carefully considered throughout the research process. The principal data chapters are structured in such a way that each sub-question is considered and ultimately the findings are presented in the form of generative mechanisms which included: the politics of social transformation and knowledge as a driving force of up-skilling; the influence of individual disposition and passion or will; the importance of the socio-material realities and realistic expectations; and how relationality is critical for the marine sector. Agency was a cross-cutting theme in all the discussions around learning, practices and the role of the material, and was highly influential on the mechanisms that have been described in this study. The experiences, events and mechanisms that were uncovered in this research provide insight into the forms of learning as these relate to up-skilling that occur in the marine sector, as well as the complex relationships between formal and informal learning. The professional practices that occur in the everyday working lives of the marine professionals were shown to be an integral part of the learning process, while formal, certified opportunities are important for strengthening the field and building conservation competence in the country. By uncovering the deeper structures and mechanisms that have power and causal efficacy when it comes to up-skilling opportunities, learning and professional practices, this study has contributed to the field of environmental education as it shows how up-skilling processes operate in complex formations that involve formal and informal learning processes in workplaces. The study also offers a more nuanced view of the relational objects in this field, such as up-skilling and workplace learning, via the inclusion of a socio-material analysis. Through a theoretical and methodological framework that focused on the material using the tools of practice theory and Bhaskar’s depth ontology and four-planar social being (to synthesise and interpret the findings from a critical realist perspective), this research highlights the unique context of up-skilling opportunities and practices in the marine sector and reveals the crucial role of agency in workplace practices. This leads to a better understanding of the up-skilling opportunities and practices of marine professionals in South Africa, which ultimately contributes towards improved human capital development in the biodiversity and environmental sectors. Through offering more complex insights into the forms of learning and up-skilling, as well as a distinct methodological contribution, this research has broader relevance for workplace learning research.
- Full Text:
- Date Issued: 2019
- Authors: Bell, Caroline Margaret
- Date: 2019
- Subjects: Biodiversity conservation -- South Africa , Human capital -- South Africa , Marine sciences -- Employees -- South Africa -- Training of , Biodiversity Human Capital Development Strategy (South Africa)
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/93966 , vital:30977
- Description: South Africa is characterised by cultural and biological diversity which constitute a unique context in which to conduct educational research, such as this doctoral study looking at human capital development in the marine biodiversity context. The drive for transformation in the country is also a major factor to consider when researching any sector of the economy, in this case, the biodiversity sector. The biodiversity sector includes organisations involved in biodiversity conservation, research and management. Previous research in the sector has found a clear need for well-thought out workplace skills plans within conservation and research organisations. The national Biodiversity Human Capital Development Strategy that was produced in 2010 by the South African National Biodiversity Institute outlines how all the organisations involved in the biodiversity sector of South Africa need to participate in strengthening the sector through a range of human capital development strategies. This includes extending the existing human capacity of managers and scientists who are already in the workplace, i.e. up-skilling. In particular, ‘scarce’ skills, as identified by the national Environmental Sector Skills Plan need further attention and development. The scarce skills relevant to this study are: protected area managers; ecosystem managers and post-graduate researchers, hence the focus on managers and scientists in this research. The marine sector falls within the biodiversity sector and it faces multiple conservation challenges which are complex and it is therefore essential to have skilled and capable managers and scientists in place. By investigating the up-skilling opportunities and practices available to these marine professionals, the goal is to understand if and how learning takes place in the marine sector of South Africa. The main research question of this study is: How do up-skilling opportunities and practices enable learning in, through and for the workplace, by marine professionals? In addition, three sub-questions provide finer details and introduce the central concepts of the research: I. What up-skilling opportunities and professional practices exist in or for, marine research and conservation organisations and how are they constituted and enacted via practice-based sayings, doings and relatings? II. How do the individuals learn and exercise their agency within the socio-material realities of the marine scientific and management context, through making use of up-skilling opportunities that are both formal (e.g. course based) and informal? III. How do generative mechanisms shape the constitution and enactment of up-skilling opportunities and practices, and the learning and agency of marine professionals (scientists and managers)? The theoretical work of this study consisted of, first, considering sensitising concepts which included: defining skill and knowledge; considering what an up-skilling opportunity might look like; workplace learning (both formal and informal learning); professional practices, lifelong learning or adult education, and agency in the workplace. Critical realism was then employed as the meta-theory that underlabours this research, while the substantive theories used for analysis purposes were socio-materialism and practice theory. Of course, critical realism is a socio-material theory itself, and Bhaskar’s four-planar social being or Social Cube was used to interpret and synthesise the findings in the data chapters. The methodological framework of this study explores the implications of critical realism for research design and analysis and includes a contextual profiling phase, semi-structured interviews, analysis of documents and peer-reviewed papers, as well as observations. There are nine case studies that form the focus of this research and in total 18 research participants were involved. Data analysis included abduction and retroduction as the primary modes of inference and the main analytical tool was the framework of practice architectures where I took the ‘sayings’, ‘doings’ and ‘relatings’ as themes. Further themes were developed from the other relevant theories used in this study; hence socio-materialism, learning, agency, and formal and informal opportunities, were also used as themes when coding the data. Issues around validity, ethics and reflexivity are key elements of the research design and were carefully considered throughout the research process. The principal data chapters are structured in such a way that each sub-question is considered and ultimately the findings are presented in the form of generative mechanisms which included: the politics of social transformation and knowledge as a driving force of up-skilling; the influence of individual disposition and passion or will; the importance of the socio-material realities and realistic expectations; and how relationality is critical for the marine sector. Agency was a cross-cutting theme in all the discussions around learning, practices and the role of the material, and was highly influential on the mechanisms that have been described in this study. The experiences, events and mechanisms that were uncovered in this research provide insight into the forms of learning as these relate to up-skilling that occur in the marine sector, as well as the complex relationships between formal and informal learning. The professional practices that occur in the everyday working lives of the marine professionals were shown to be an integral part of the learning process, while formal, certified opportunities are important for strengthening the field and building conservation competence in the country. By uncovering the deeper structures and mechanisms that have power and causal efficacy when it comes to up-skilling opportunities, learning and professional practices, this study has contributed to the field of environmental education as it shows how up-skilling processes operate in complex formations that involve formal and informal learning processes in workplaces. The study also offers a more nuanced view of the relational objects in this field, such as up-skilling and workplace learning, via the inclusion of a socio-material analysis. Through a theoretical and methodological framework that focused on the material using the tools of practice theory and Bhaskar’s depth ontology and four-planar social being (to synthesise and interpret the findings from a critical realist perspective), this research highlights the unique context of up-skilling opportunities and practices in the marine sector and reveals the crucial role of agency in workplace practices. This leads to a better understanding of the up-skilling opportunities and practices of marine professionals in South Africa, which ultimately contributes towards improved human capital development in the biodiversity and environmental sectors. Through offering more complex insights into the forms of learning and up-skilling, as well as a distinct methodological contribution, this research has broader relevance for workplace learning research.
- Full Text:
- Date Issued: 2019
From myth to allegory: a study of the poetry of W.H. Auden, with special reference to the poet's intention
- Authors: Bell, I M
- Date: 1968
- Subjects: Auden, W. H., (Wystan Hugh), 1907-1973 -- Criticism and interpretation
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2290 , http://hdl.handle.net/10962/d1009514 , Auden, W. H., (Wystan Hugh), 1907-1973 -- Criticism and interpretation
- Description: The more attentively Auden's poetry is studied, the more one critical problem emerges. How can the poet of the "twenties and ' thirties be reconciled with the poet of the last three decades? "We've all got to come to terms with the later Auden" writes Professor Richard Hoggart, but he does not explain how. The man who wrote the pungent early poetry with its constant reiteration of warnings to a sick society that what was needed was " … death, death of the grain, our death, Death of the old gang … " before it could achieve "new styles of architecture, a change of heart", seems an entirely different person from the man who is on the side of Authority to-day; that is to say in so far as Auden can ever be said to be definitely on one side or another. Intro. p. 1.
- Full Text:
- Date Issued: 1968
- Authors: Bell, I M
- Date: 1968
- Subjects: Auden, W. H., (Wystan Hugh), 1907-1973 -- Criticism and interpretation
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2290 , http://hdl.handle.net/10962/d1009514 , Auden, W. H., (Wystan Hugh), 1907-1973 -- Criticism and interpretation
- Description: The more attentively Auden's poetry is studied, the more one critical problem emerges. How can the poet of the "twenties and ' thirties be reconciled with the poet of the last three decades? "We've all got to come to terms with the later Auden" writes Professor Richard Hoggart, but he does not explain how. The man who wrote the pungent early poetry with its constant reiteration of warnings to a sick society that what was needed was " … death, death of the grain, our death, Death of the old gang … " before it could achieve "new styles of architecture, a change of heart", seems an entirely different person from the man who is on the side of Authority to-day; that is to say in so far as Auden can ever be said to be definitely on one side or another. Intro. p. 1.
- Full Text:
- Date Issued: 1968