The perceived impact of policy change on leadership and management : a case study of a Namibian school
- Moelanjane, Porgarius Porgacy Rukee
- Authors: Moelanjane, Porgarius Porgacy Rukee
- Date: 2005
- Subjects: School management and organization -- Namibia -- Case studies. Educational leadership -- Namibia -- Case studies Educational change -- Namibia -- Case studies Education and state -- Namibia -- Case studies
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1935 , http://hdl.handle.net/10962/d1007670
- Description: The transformation of education has been central to the programme of the first democratically elected government in Namibia, both because of the democratic demands for equality, equity and access, and as a means towards the wider transformation of Namibian community. The study provides a brief history of the pre- and post-independence education policy environment in Namibia with regard to how management and leadership of schools gave rise to opportunities for the development of democratic participation. Adopting an interpretive approach, the study examines several key stakeholders' perceptions of the impact of transformation initiatives on their leadership and management thinking and practice. The sample comprised four teachers, a principal, a director, a school board member, two learners and a hostel matron. The findings reveal that, in order to create a democratic school community, the stakeholders' role is largely a matter of opposing and transcending the contradictions, inadequacies and limitations inherent in the educational ideas, policies and practices caused by the previous Apartheid education system. There is a reasonable amount of success in the implementation process of democratic leadership and management of schools. The findings further highlight contradictory tendencies, in that the Ministry of Basic Education Sports and Culture established a uniform system of education but also entertained the principle of decentralised governance through the introduction of school based management practice incorporating the main stakeholders at local level. The data confirms a communication gap between stakeholders, lack of adequate education and training in participatory management and leadership for learners, parents, teachers and school boards, and insufficient support from the national and the regional authorities. The study concludes with some specific recommendations that might strengthen stakeholders' sense of their participation in democratic practices for longer-term cost effective implementation to occur. This is supported by the belief that education policy change only becomes a reality once understood, owned and appreciated at local level.
- Full Text:
- Date Issued: 2005
- Authors: Moelanjane, Porgarius Porgacy Rukee
- Date: 2005
- Subjects: School management and organization -- Namibia -- Case studies. Educational leadership -- Namibia -- Case studies Educational change -- Namibia -- Case studies Education and state -- Namibia -- Case studies
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1935 , http://hdl.handle.net/10962/d1007670
- Description: The transformation of education has been central to the programme of the first democratically elected government in Namibia, both because of the democratic demands for equality, equity and access, and as a means towards the wider transformation of Namibian community. The study provides a brief history of the pre- and post-independence education policy environment in Namibia with regard to how management and leadership of schools gave rise to opportunities for the development of democratic participation. Adopting an interpretive approach, the study examines several key stakeholders' perceptions of the impact of transformation initiatives on their leadership and management thinking and practice. The sample comprised four teachers, a principal, a director, a school board member, two learners and a hostel matron. The findings reveal that, in order to create a democratic school community, the stakeholders' role is largely a matter of opposing and transcending the contradictions, inadequacies and limitations inherent in the educational ideas, policies and practices caused by the previous Apartheid education system. There is a reasonable amount of success in the implementation process of democratic leadership and management of schools. The findings further highlight contradictory tendencies, in that the Ministry of Basic Education Sports and Culture established a uniform system of education but also entertained the principle of decentralised governance through the introduction of school based management practice incorporating the main stakeholders at local level. The data confirms a communication gap between stakeholders, lack of adequate education and training in participatory management and leadership for learners, parents, teachers and school boards, and insufficient support from the national and the regional authorities. The study concludes with some specific recommendations that might strengthen stakeholders' sense of their participation in democratic practices for longer-term cost effective implementation to occur. This is supported by the belief that education policy change only becomes a reality once understood, owned and appreciated at local level.
- Full Text:
- Date Issued: 2005
A model for the efficient strategic management of the port of Ngqura
- Authors: Mokheseng, Mokheseng Johnny
- Date: 2005
- Subjects: Strategic planning -- South Africa , Harbors -- South Africa -- Port Elizabeth , Port Ngqura (Port Elizabeth, South Africa)
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8546 , http://hdl.handle.net/10948/417 , Strategic planning -- South Africa , Harbors -- South Africa -- Port Elizabeth , Port Ngqura (Port Elizabeth, South Africa)
- Description: Ports are the backbone of the economy of countries endowed with shorelines and they spearhead foreign trade through the importation and exportation of goods to and from their domestic markets. The newly constructed Port of Ngqura will be the outlet for exports of semi-finished and finished goods produced in the Coega IDZ and will also receive raw material to be processed. Its position at the center of the world’s main trade routes, equidistant from American, European and the Pacific Rim regions makes the Coega IDZ the ideal location for any manufacturer adding value to raw materials, components and producing goods bound for the world markets. Traditionally the ports have been developed and operated by the government enterprises. Recently all these are changing in many countries all over the world, with more private participation in the development and operations of the ports. This evolution has entrusted Port Authorities in taking control over port planning, broad regulation of shipping and port operations, applying conventions, laws and rules. South Africa is no exception to these winds of change, hence the adoption of the new port bill in managing all ports in the country. The Port of Ngqura will then serve as a benchmark for all other ports, with a new management structure which will help the port to be efficient. The study addresses the model for the efficient strategic management of the Port of Ngqura. The model looks into placing the Port of Ngqura ahead of its competitors through efficiency in port management and operations. Efficient ports are catalysts, facilitators and attractors of international sea borne trade. Competitive efficiency is achieved by employing the best suited port equipments, facilities and technology to cater for customer’s needs and requirements. A successful port must be able to constantly adopt new roles in order to cope with the ever changing market environment.
- Full Text:
- Date Issued: 2005
- Authors: Mokheseng, Mokheseng Johnny
- Date: 2005
- Subjects: Strategic planning -- South Africa , Harbors -- South Africa -- Port Elizabeth , Port Ngqura (Port Elizabeth, South Africa)
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8546 , http://hdl.handle.net/10948/417 , Strategic planning -- South Africa , Harbors -- South Africa -- Port Elizabeth , Port Ngqura (Port Elizabeth, South Africa)
- Description: Ports are the backbone of the economy of countries endowed with shorelines and they spearhead foreign trade through the importation and exportation of goods to and from their domestic markets. The newly constructed Port of Ngqura will be the outlet for exports of semi-finished and finished goods produced in the Coega IDZ and will also receive raw material to be processed. Its position at the center of the world’s main trade routes, equidistant from American, European and the Pacific Rim regions makes the Coega IDZ the ideal location for any manufacturer adding value to raw materials, components and producing goods bound for the world markets. Traditionally the ports have been developed and operated by the government enterprises. Recently all these are changing in many countries all over the world, with more private participation in the development and operations of the ports. This evolution has entrusted Port Authorities in taking control over port planning, broad regulation of shipping and port operations, applying conventions, laws and rules. South Africa is no exception to these winds of change, hence the adoption of the new port bill in managing all ports in the country. The Port of Ngqura will then serve as a benchmark for all other ports, with a new management structure which will help the port to be efficient. The study addresses the model for the efficient strategic management of the Port of Ngqura. The model looks into placing the Port of Ngqura ahead of its competitors through efficiency in port management and operations. Efficient ports are catalysts, facilitators and attractors of international sea borne trade. Competitive efficiency is achieved by employing the best suited port equipments, facilities and technology to cater for customer’s needs and requirements. A successful port must be able to constantly adopt new roles in order to cope with the ever changing market environment.
- Full Text:
- Date Issued: 2005
An investigation into the extent of focus by Metropolitan Retail, South Africa on the technology innovation capabilities and perspectives
- Authors: Motsoeneng, Thato Simon
- Date: 2005
- Subjects: Business enterprises -- Technological innovations , Insurance companies -- Technological innovations -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8599 , http://hdl.handle.net/10948/415 , Business enterprises -- Technological innovations , Insurance companies -- Technological innovations -- South Africa
- Description: This paper reviews the literature on innovation in order to build an agenda for an investigation into the extent to which Metropolitan Retail, within Metropolitan Life Pty in South Africa, focuses on technology innovation capabilities and perspectives. The research was conducted in the areas of, technology innovation capabilities, perspectives guiding the business strategy to integrate and accelerate innovation and contextual aspects influencing innovation perspectives. The extent of focus by the firm on capabilities and perspectives was measured. Data gathered was disseminated and processed by means of Microsoft Excel spreadsheets. The results on current focus indicate that the firm’s focus is mostly on improving core business, although the extent is less than adequate. In other words, generate incremental innovations that can be developed and implemented rapidly and inexpensively. This approach of implementing innovation is in line with the business strategy, more specifically, with the objective of reducing costs and making profits. The findings of the research further suggest that the firm should consider focusing mostly on exploiting strategic advantages. In many firms the fundamental emphasis on technology innovation in developing products, processes and services is thought to determine their ability to cope with never ending customer demands and competitive practices. Coupled with this thought is a reality of high failure rate of technology innovation projects. Against this backdrop, general managers are faced with strategic innovation options, which can make or break firms. Changes in the economic and government environments influence the innovation approach of the firm most. These changes have undoubtedly presented firms with opportunities as well as risks. Possibly the greatest challenge confronting general managers in this context is the building of critical capabilities to enhance the firm’s agility. This challenge presents opportunity for further research.
- Full Text:
- Date Issued: 2005
- Authors: Motsoeneng, Thato Simon
- Date: 2005
- Subjects: Business enterprises -- Technological innovations , Insurance companies -- Technological innovations -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8599 , http://hdl.handle.net/10948/415 , Business enterprises -- Technological innovations , Insurance companies -- Technological innovations -- South Africa
- Description: This paper reviews the literature on innovation in order to build an agenda for an investigation into the extent to which Metropolitan Retail, within Metropolitan Life Pty in South Africa, focuses on technology innovation capabilities and perspectives. The research was conducted in the areas of, technology innovation capabilities, perspectives guiding the business strategy to integrate and accelerate innovation and contextual aspects influencing innovation perspectives. The extent of focus by the firm on capabilities and perspectives was measured. Data gathered was disseminated and processed by means of Microsoft Excel spreadsheets. The results on current focus indicate that the firm’s focus is mostly on improving core business, although the extent is less than adequate. In other words, generate incremental innovations that can be developed and implemented rapidly and inexpensively. This approach of implementing innovation is in line with the business strategy, more specifically, with the objective of reducing costs and making profits. The findings of the research further suggest that the firm should consider focusing mostly on exploiting strategic advantages. In many firms the fundamental emphasis on technology innovation in developing products, processes and services is thought to determine their ability to cope with never ending customer demands and competitive practices. Coupled with this thought is a reality of high failure rate of technology innovation projects. Against this backdrop, general managers are faced with strategic innovation options, which can make or break firms. Changes in the economic and government environments influence the innovation approach of the firm most. These changes have undoubtedly presented firms with opportunities as well as risks. Possibly the greatest challenge confronting general managers in this context is the building of critical capabilities to enhance the firm’s agility. This challenge presents opportunity for further research.
- Full Text:
- Date Issued: 2005
Establish to what extent small and medium enterprises (SMEs) in the Port Elizabeth CBD comply with good governance principles and practices
- Authors: Mpafa, Dumisani
- Date: 2005
- Subjects: Corporate governance , Small business -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:10904 , http://hdl.handle.net/10948/163 , Corporate governance , Small business -- South Africa -- Port Elizabeth
- Description: Throughout the world, corporate or good governance has become such a dominating terminology in the ever -increasing business vocabulary. Its fast rise and strategic relevance to the global business communi ty is part ly due to the desi re by the business leaders wor ldwide to be seen to be doing something about the scourge of corporate failures resulting f rom poor governance. The objective of the research was to establish to what extent Smal l and Medium Enterpr ises (SMEs) comply with good governance principles and practices. The SMEs in the Port Elizabeth CBD were chosen as the representative population of the SME sector throughout the country. The research methodology included: A li terature study to determine, on the one hand the current good governance pract ices global ly, and on the other the role, relevance and the challenges of the SMEs in the South Af rican Economy. An empir ical study in order to obtain the empir ical evidence concerning SME compliance to good governance principles and pract ice. This was done through a survey of SME sector in the Port Elizabeth CBD. Lastly, the conclusion and recommendations. The conclusion was reached, inter alia, that the major ity of SMEs do not comply wi th good governance principles and pract ices for various reasons. Therefore the following recommendations were made: Recommended that the organisational accountants appointed in terms of the law should not confine themselves to the financial aspects of the business only, but also look at governance of these small businesses. Recommended that a sub-code for SMEs be developed. Recommended that the existing code of governance be amended to include a clause that requires large and establish businesses to insist on good governance in the SMEs they deal with at any level. Recommended that the South African Qualifications Authority (SAQA) should develop a qualification or unit standard on good governance to facilitate training on good governance. Since good governance knowledge is a key competence for every manager, especially senior management. It is recommended that institutions of higher learning should have good governance in their curriculum.
- Full Text:
- Date Issued: 2005
- Authors: Mpafa, Dumisani
- Date: 2005
- Subjects: Corporate governance , Small business -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:10904 , http://hdl.handle.net/10948/163 , Corporate governance , Small business -- South Africa -- Port Elizabeth
- Description: Throughout the world, corporate or good governance has become such a dominating terminology in the ever -increasing business vocabulary. Its fast rise and strategic relevance to the global business communi ty is part ly due to the desi re by the business leaders wor ldwide to be seen to be doing something about the scourge of corporate failures resulting f rom poor governance. The objective of the research was to establish to what extent Smal l and Medium Enterpr ises (SMEs) comply with good governance principles and practices. The SMEs in the Port Elizabeth CBD were chosen as the representative population of the SME sector throughout the country. The research methodology included: A li terature study to determine, on the one hand the current good governance pract ices global ly, and on the other the role, relevance and the challenges of the SMEs in the South Af rican Economy. An empir ical study in order to obtain the empir ical evidence concerning SME compliance to good governance principles and pract ice. This was done through a survey of SME sector in the Port Elizabeth CBD. Lastly, the conclusion and recommendations. The conclusion was reached, inter alia, that the major ity of SMEs do not comply wi th good governance principles and pract ices for various reasons. Therefore the following recommendations were made: Recommended that the organisational accountants appointed in terms of the law should not confine themselves to the financial aspects of the business only, but also look at governance of these small businesses. Recommended that a sub-code for SMEs be developed. Recommended that the existing code of governance be amended to include a clause that requires large and establish businesses to insist on good governance in the SMEs they deal with at any level. Recommended that the South African Qualifications Authority (SAQA) should develop a qualification or unit standard on good governance to facilitate training on good governance. Since good governance knowledge is a key competence for every manager, especially senior management. It is recommended that institutions of higher learning should have good governance in their curriculum.
- Full Text:
- Date Issued: 2005
A comparative bioinformatic analysis of zinc binuclear cluster proteins
- Authors: Mthombeni, Jabulani S
- Date: 2005
- Subjects: Bioinformatics , Zinc proteins , GABA
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4004 , http://hdl.handle.net/10962/d1004064 , Bioinformatics , Zinc proteins , GABA
- Description: Members of the zinc binuclear cluster family are important fungal transcriptional regulators sharing a common DNA binding domain. Da181p is a pleotropic zinc binuclear cluster protein involved in the induction of the UGA genes required for the γ-aminobutyrate nitrogen catabolic pathway in Saccharomyces cerevisiae. The zinc binuclear cluster domain is indispensable for function in Da181p and little is known about other domains in this protein. The aim of the study was to explore the zinc binuclear cluster protein family using comparative bioinformatics as a complement to biochemical and structural approaches. A database of all zinc binuclear cluster proteins was composed. A total of 118 zinc binuclear proteins are reported in this work. Thirty nine previously unidentified zinc binuclear cluster proteins were found. Four homologues of Da181p were identified by homology searching. Important sequence motifs were identified in the aligned sequences of Da181p and its homologues. The coiled coil motif found in the Ga14p zinc binuclear cluster protein could not be identified in Da181p and its homologues. This suggested that Da181p did not dimerise through this structural motif as other zinc binuclear cluster proteins. Solvent accessible site that could be phosphorylated by protein kinase C or casein kinase II and the role of such sites in the possible regulation of Da181p function were discussed.
- Full Text:
- Date Issued: 2005
- Authors: Mthombeni, Jabulani S
- Date: 2005
- Subjects: Bioinformatics , Zinc proteins , GABA
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4004 , http://hdl.handle.net/10962/d1004064 , Bioinformatics , Zinc proteins , GABA
- Description: Members of the zinc binuclear cluster family are important fungal transcriptional regulators sharing a common DNA binding domain. Da181p is a pleotropic zinc binuclear cluster protein involved in the induction of the UGA genes required for the γ-aminobutyrate nitrogen catabolic pathway in Saccharomyces cerevisiae. The zinc binuclear cluster domain is indispensable for function in Da181p and little is known about other domains in this protein. The aim of the study was to explore the zinc binuclear cluster protein family using comparative bioinformatics as a complement to biochemical and structural approaches. A database of all zinc binuclear cluster proteins was composed. A total of 118 zinc binuclear proteins are reported in this work. Thirty nine previously unidentified zinc binuclear cluster proteins were found. Four homologues of Da181p were identified by homology searching. Important sequence motifs were identified in the aligned sequences of Da181p and its homologues. The coiled coil motif found in the Ga14p zinc binuclear cluster protein could not be identified in Da181p and its homologues. This suggested that Da181p did not dimerise through this structural motif as other zinc binuclear cluster proteins. Solvent accessible site that could be phosphorylated by protein kinase C or casein kinase II and the role of such sites in the possible regulation of Da181p function were discussed.
- Full Text:
- Date Issued: 2005
The effects of goat kraal manure, sewage sludge and effective microorganisms on the composting of pine bark and the nutritional value of the composts
- Authors: Mupondi, Lushian Tapiwa
- Date: 2005
- Subjects: Compost , Fertilizers , Sewage sludge as fertilizer , Goats , Manures , Compost plants
- Language: English
- Type: Thesis , Masters , MSc Agric (Soil Science)
- Identifier: vital:11171 , http://hdl.handle.net/10353/d1001008 , Compost , Fertilizers , Sewage sludge as fertilizer , Goats , Manures , Compost plants
- Full Text: false
- Date Issued: 2005
- Authors: Mupondi, Lushian Tapiwa
- Date: 2005
- Subjects: Compost , Fertilizers , Sewage sludge as fertilizer , Goats , Manures , Compost plants
- Language: English
- Type: Thesis , Masters , MSc Agric (Soil Science)
- Identifier: vital:11171 , http://hdl.handle.net/10353/d1001008 , Compost , Fertilizers , Sewage sludge as fertilizer , Goats , Manures , Compost plants
- Full Text: false
- Date Issued: 2005
The application of the monthly time step Pitman rainfall-runoff model to the Kafue River basin of Zambia
- Mwelwa, Elenestina Mutekenya
- Authors: Mwelwa, Elenestina Mutekenya
- Date: 2005
- Subjects: Kafue River (Zambia) , Kafue Flats (Zambia) , Floodplains -- Zambia , Rain and rainfall -- Mathematical models , Runoff -- Mathematical models , Hydrology -- Mathematical models
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:6032 , http://hdl.handle.net/10962/d1006171 , Kafue River (Zambia) , Kafue Flats (Zambia) , Floodplains -- Zambia , Rain and rainfall -- Mathematical models , Runoff -- Mathematical models , Hydrology -- Mathematical models
- Description: This thesis presents a discussion on the study undertaken in the application of the monthly time step Pitman rainfall-runoff model to the Kafue River basin. The study constituted one of the initial steps in the capacity building and expansion of the application of hydrologic models in the southern African region for water resources assessment, one of the core areas of the Southern African FRIEND project (Flow Regimes from International Experimental Network Data). The research process was undertaken in four major stages, each stage working towards achieving the research objectives. The first stage was the preparation of spatial data which included the selection and delineation of sub-catchments and inclusion of spatial features required to run the Pitman model and transferring the spatial data into SPATSIM. The second stage was the preparation of input data, mainly rainfall, streamflow, evaporation, and water abstraction data. This information was then imported into SPATSIM, which was able to assist in the further preparation of data by assessment of the input data quality, linking of observed flows and spatial interpolation of point rainfall data to average catchment rainfall in readiness for running and calibration of the model. The third stage was the running and calibration of the Pitman model. Use was made of both the automatic calibration facility, as well as manual calibration by means of the time series graph display and analysis facility of SPATSIM. Model calibration was used to obtain the best fit and an acceptable correlation between the simulated and the observed flows and to obtain simulation parameter sets for sub-catchments and regions within the Kafue catchment. The fourth stage was the analysis and evaluation of the model results. This included verification of results over different time periods and validation and testing of parameter transfers to other catchments. This stage also included the evaluation of SPATSIM as a tool for applying the model and as a database for the processing and storage of water resources data. The study’s output includes: A comprehensive database of hydrometeorological, physical catchment characteristics, landuse and water abstraction information for the Kafue basin; calibrated Pitman model parameters for the sub-catchments within the Kafue basin; recommendations for future work and data collection programmes for the application of the model. The study has also built capacity by facilitating training and exposure to rainfall-runoff models (specifically the Pitman model) and associated software, SPATSIM. In addition, the dissemination of the results of this study will serve as an effective way of raising awareness on the application of the Pitman model and the use of the SPATSIM software within Zambia and the region. The overall Pitman model results were found to be satisfactory and the calibrated model is able to reproduce the observed spatial and temporal variations in streamflow characteristics in the Kafue River basin.
- Full Text:
- Date Issued: 2005
- Authors: Mwelwa, Elenestina Mutekenya
- Date: 2005
- Subjects: Kafue River (Zambia) , Kafue Flats (Zambia) , Floodplains -- Zambia , Rain and rainfall -- Mathematical models , Runoff -- Mathematical models , Hydrology -- Mathematical models
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:6032 , http://hdl.handle.net/10962/d1006171 , Kafue River (Zambia) , Kafue Flats (Zambia) , Floodplains -- Zambia , Rain and rainfall -- Mathematical models , Runoff -- Mathematical models , Hydrology -- Mathematical models
- Description: This thesis presents a discussion on the study undertaken in the application of the monthly time step Pitman rainfall-runoff model to the Kafue River basin. The study constituted one of the initial steps in the capacity building and expansion of the application of hydrologic models in the southern African region for water resources assessment, one of the core areas of the Southern African FRIEND project (Flow Regimes from International Experimental Network Data). The research process was undertaken in four major stages, each stage working towards achieving the research objectives. The first stage was the preparation of spatial data which included the selection and delineation of sub-catchments and inclusion of spatial features required to run the Pitman model and transferring the spatial data into SPATSIM. The second stage was the preparation of input data, mainly rainfall, streamflow, evaporation, and water abstraction data. This information was then imported into SPATSIM, which was able to assist in the further preparation of data by assessment of the input data quality, linking of observed flows and spatial interpolation of point rainfall data to average catchment rainfall in readiness for running and calibration of the model. The third stage was the running and calibration of the Pitman model. Use was made of both the automatic calibration facility, as well as manual calibration by means of the time series graph display and analysis facility of SPATSIM. Model calibration was used to obtain the best fit and an acceptable correlation between the simulated and the observed flows and to obtain simulation parameter sets for sub-catchments and regions within the Kafue catchment. The fourth stage was the analysis and evaluation of the model results. This included verification of results over different time periods and validation and testing of parameter transfers to other catchments. This stage also included the evaluation of SPATSIM as a tool for applying the model and as a database for the processing and storage of water resources data. The study’s output includes: A comprehensive database of hydrometeorological, physical catchment characteristics, landuse and water abstraction information for the Kafue basin; calibrated Pitman model parameters for the sub-catchments within the Kafue basin; recommendations for future work and data collection programmes for the application of the model. The study has also built capacity by facilitating training and exposure to rainfall-runoff models (specifically the Pitman model) and associated software, SPATSIM. In addition, the dissemination of the results of this study will serve as an effective way of raising awareness on the application of the Pitman model and the use of the SPATSIM software within Zambia and the region. The overall Pitman model results were found to be satisfactory and the calibrated model is able to reproduce the observed spatial and temporal variations in streamflow characteristics in the Kafue River basin.
- Full Text:
- Date Issued: 2005
Development and assessment of medicines information for antiretroviral therapy in Sub-Saharan Africa
- Authors: Mwingira, Betty
- Date: 2005
- Subjects: AIDS (Disease) -- Africa, Sub-Saharan , AIDS (Disease) -- Treatment -- Africa, Sub-Saharan , AIDS (Disease) -- Juvenile literature -- Africa, Sub-Saharan , HIV infections -- Treatment -- Africa, Sub-Saharan , HIV infections -- Africa, Sub-Saharan , Antiretroviral agents -- Africa, Sub-Saharan , HIV-positive persons -- Care -- Africa, Sub-Saharan , Hiv-positive persons -- Medical care -- Africa, Sub-Saharan , AIDS (Disease) -- Study and teaching -- Africa, Sub-Saharan
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3779 , http://hdl.handle.net/10962/d1003257 , AIDS (Disease) -- Africa, Sub-Saharan , AIDS (Disease) -- Treatment -- Africa, Sub-Saharan , AIDS (Disease) -- Juvenile literature -- Africa, Sub-Saharan , HIV infections -- Treatment -- Africa, Sub-Saharan , HIV infections -- Africa, Sub-Saharan , Antiretroviral agents -- Africa, Sub-Saharan , HIV-positive persons -- Care -- Africa, Sub-Saharan , Hiv-positive persons -- Medical care -- Africa, Sub-Saharan , AIDS (Disease) -- Study and teaching -- Africa, Sub-Saharan
- Full Text:
- Date Issued: 2005
Development and assessment of medicines information for antiretroviral therapy in Sub-Saharan Africa
- Authors: Mwingira, Betty
- Date: 2005
- Subjects: AIDS (Disease) -- Africa, Sub-Saharan , AIDS (Disease) -- Treatment -- Africa, Sub-Saharan , AIDS (Disease) -- Juvenile literature -- Africa, Sub-Saharan , HIV infections -- Treatment -- Africa, Sub-Saharan , HIV infections -- Africa, Sub-Saharan , Antiretroviral agents -- Africa, Sub-Saharan , HIV-positive persons -- Care -- Africa, Sub-Saharan , Hiv-positive persons -- Medical care -- Africa, Sub-Saharan , AIDS (Disease) -- Study and teaching -- Africa, Sub-Saharan
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3779 , http://hdl.handle.net/10962/d1003257 , AIDS (Disease) -- Africa, Sub-Saharan , AIDS (Disease) -- Treatment -- Africa, Sub-Saharan , AIDS (Disease) -- Juvenile literature -- Africa, Sub-Saharan , HIV infections -- Treatment -- Africa, Sub-Saharan , HIV infections -- Africa, Sub-Saharan , Antiretroviral agents -- Africa, Sub-Saharan , HIV-positive persons -- Care -- Africa, Sub-Saharan , Hiv-positive persons -- Medical care -- Africa, Sub-Saharan , AIDS (Disease) -- Study and teaching -- Africa, Sub-Saharan
- Full Text:
- Date Issued: 2005
The effect of new teaching methods in chemistry on the foundation certificate learners' results
- Authors: Nagel, Lilian Estelle
- Date: 2005
- Subjects: Chemistry -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10787 , http://hdl.handle.net/10948/162 , Chemistry -- Study and teaching (Higher)
- Description: This study investigated possible alternative Chemistry teaching methods to improve the learning and thus the pass rate of the learners of access programmes at the Port Elizabeth Technikon. The study traced Chemistry learning from the Pre-Technician course to the present Science Foundation Certificate. Since the latter programme is a new course with new criteria, only implemented since the beginning of 2003, it provided a suitable platform for the evaluation and updating, if necessary, of new teaching methods. The study was limited to the subject of Chemistry. The participating learners in this qualitative research were fully informed of the objectives of this research and, for ethical reasons, their identities were protected. The methodology chosen was action research, which will include discussions regarding the choice, necessity and value of the research method. The following tools were used to collect data to determine approaches to learning and how the examination results were influenced: Questionnaires; Journal entries of students; Interviews; Data of examination results.
- Full Text:
- Date Issued: 2005
- Authors: Nagel, Lilian Estelle
- Date: 2005
- Subjects: Chemistry -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10787 , http://hdl.handle.net/10948/162 , Chemistry -- Study and teaching (Higher)
- Description: This study investigated possible alternative Chemistry teaching methods to improve the learning and thus the pass rate of the learners of access programmes at the Port Elizabeth Technikon. The study traced Chemistry learning from the Pre-Technician course to the present Science Foundation Certificate. Since the latter programme is a new course with new criteria, only implemented since the beginning of 2003, it provided a suitable platform for the evaluation and updating, if necessary, of new teaching methods. The study was limited to the subject of Chemistry. The participating learners in this qualitative research were fully informed of the objectives of this research and, for ethical reasons, their identities were protected. The methodology chosen was action research, which will include discussions regarding the choice, necessity and value of the research method. The following tools were used to collect data to determine approaches to learning and how the examination results were influenced: Questionnaires; Journal entries of students; Interviews; Data of examination results.
- Full Text:
- Date Issued: 2005
Optimising the material distribution process for the southern region of Telkom SA
- Authors: Naicker, Kosalin Ganasen
- Date: 2005
- Subjects: Business logistics -- South Africa , Telecommunication -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8547 , http://hdl.handle.net/10948/407 , Business logistics -- South Africa , Telecommunication -- South Africa
- Description: Most government owned telecommunication operators across the world have to deal with a number of regulatory, technology and service challenges, as the industry is liberalised in co-ordinance with worldwide trends. Telkom SA will be facing a number of strategic challenges that will test its ability to survive as a telecommunications company over the next number of years. To remain competitive, Telkom must develop strategies to assure survival in a competitive environment. To assure the long-term survival of Telkom SA when moving into a competitive environment, the organisation must build a sustainable competitive advantage. In the face of increasingly fierce competition, the adoption of collaborative alliances between firms is becoming more and more common and the adoption of a world-class supply chain will be an ideal scenario for Telkom SA. A worldclass supply chain goes beyond the scope of the internal operations of an organisation, therefore the material distribution process was chosen for this study, which involved the internal operations in the organisation. The study included the availability of material up to the transportation of the material to the staging areas. The aim of this research was to identify the inefficiencies of the material distribution process of the Southern Region of Telkom SA to become worldclass. A quantitative technique was used to identify the inefficiencies. It was found that the availability and transportation of material were the inefficient categories, preventing the customer to receive the product or service on time. Communication, inaccurate forecasting and inefficient transportation of material were some of the reasons for not delivering material on time. Some of the recommendations included developing a model that could overcome the current inefficiencies in transportation, improving the communication channels, training and the development of employees at all levels.
- Full Text:
- Date Issued: 2005
- Authors: Naicker, Kosalin Ganasen
- Date: 2005
- Subjects: Business logistics -- South Africa , Telecommunication -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8547 , http://hdl.handle.net/10948/407 , Business logistics -- South Africa , Telecommunication -- South Africa
- Description: Most government owned telecommunication operators across the world have to deal with a number of regulatory, technology and service challenges, as the industry is liberalised in co-ordinance with worldwide trends. Telkom SA will be facing a number of strategic challenges that will test its ability to survive as a telecommunications company over the next number of years. To remain competitive, Telkom must develop strategies to assure survival in a competitive environment. To assure the long-term survival of Telkom SA when moving into a competitive environment, the organisation must build a sustainable competitive advantage. In the face of increasingly fierce competition, the adoption of collaborative alliances between firms is becoming more and more common and the adoption of a world-class supply chain will be an ideal scenario for Telkom SA. A worldclass supply chain goes beyond the scope of the internal operations of an organisation, therefore the material distribution process was chosen for this study, which involved the internal operations in the organisation. The study included the availability of material up to the transportation of the material to the staging areas. The aim of this research was to identify the inefficiencies of the material distribution process of the Southern Region of Telkom SA to become worldclass. A quantitative technique was used to identify the inefficiencies. It was found that the availability and transportation of material were the inefficient categories, preventing the customer to receive the product or service on time. Communication, inaccurate forecasting and inefficient transportation of material were some of the reasons for not delivering material on time. Some of the recommendations included developing a model that could overcome the current inefficiencies in transportation, improving the communication channels, training and the development of employees at all levels.
- Full Text:
- Date Issued: 2005
A critical investigation of plant optimization, to improve the production process of Mercedes-Benz commercial vehicles in South Africa. (Jan 2004 - Sept 2004)
- Authors: Naidoo, Desalin Rajoo
- Date: 2005
- Subjects: Automobile industry and trade -- South Africa -- Management Motor vehicle industry -- Production control -- South Africa Production management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:737 , http://hdl.handle.net/10962/d1003857
- Description: The research thesis reflects a positive improvement to the plant efficiency through strategic optimisation planning and controlling systems. It’s important to note that the set goals of the research were achieved, with total employee buy-in contributing to the success and sustainability of these improvements. Purposive sample methods allowed for the twenty employees from a total of 172, to be interviewed for both the pre and post testing. The paradigm of the research contributed to integrative communication between brainstorming and action. The efforts of the total workforce must be commended, for strategically aligning the organizational goals and objectives to realization. The content of the thesis, show a direct relationship between the plant optimisation and the increase in the production volumes. The understanding of the downtime reports for the period specified is a direct reflection to the improvement in quality, and the reduction of the overall poor workmanship graphs indicates positively to the reduction in cost. The last value driver, on-time delivery shows a vast improvement in maintaining the customer satisfaction, when considering the increase to the production volume capacity. These improvements have made further volume increases probable, and the understanding of Ikhwezi Trucktech management to negotiate with realized information for future capacity planning.
- Full Text:
- Date Issued: 2005
- Authors: Naidoo, Desalin Rajoo
- Date: 2005
- Subjects: Automobile industry and trade -- South Africa -- Management Motor vehicle industry -- Production control -- South Africa Production management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:737 , http://hdl.handle.net/10962/d1003857
- Description: The research thesis reflects a positive improvement to the plant efficiency through strategic optimisation planning and controlling systems. It’s important to note that the set goals of the research were achieved, with total employee buy-in contributing to the success and sustainability of these improvements. Purposive sample methods allowed for the twenty employees from a total of 172, to be interviewed for both the pre and post testing. The paradigm of the research contributed to integrative communication between brainstorming and action. The efforts of the total workforce must be commended, for strategically aligning the organizational goals and objectives to realization. The content of the thesis, show a direct relationship between the plant optimisation and the increase in the production volumes. The understanding of the downtime reports for the period specified is a direct reflection to the improvement in quality, and the reduction of the overall poor workmanship graphs indicates positively to the reduction in cost. The last value driver, on-time delivery shows a vast improvement in maintaining the customer satisfaction, when considering the increase to the production volume capacity. These improvements have made further volume increases probable, and the understanding of Ikhwezi Trucktech management to negotiate with realized information for future capacity planning.
- Full Text:
- Date Issued: 2005
Soul tattoos : an exploration of the therapeutic self - the indelible and the disposable
- Authors: Naidoo, Leanne
- Date: 2005
- Subjects: Tattooing -- Therapeutic use
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9842 , http://hdl.handle.net/10948/373 , Tattooing -- Therapeutic use
- Description: From a social constructionist perspective, the self of the therapist is the only tool that she takes into therapy with her. The study of the therapeutic self therefore becomes important as this impacts on the quality of therapy received by the client. This treatise explores the development of the researcher’s therapeutic self through the storying of significant learning experiences in the course of her training in counselling psychology. An analysis of the narrative reveals the substance of some of the soul tattoos that make up her therapeutic self. The study was undertaken from an action research approach, thus emphasising the investigation of the therapeutic self in the field and feeding this information back into the practice of counselling psychology in the course of the research project. The themes extracted in the analysis reveal the process of action learning and what constituted significant learning experiences for the researcher. The researcher found that certain conditions were required for the formation of soul tattoos and that merely obtaining a masters degree in counselling psychology was not sufficient preparation for the practice of counselling psychology.
- Full Text:
- Date Issued: 2005
- Authors: Naidoo, Leanne
- Date: 2005
- Subjects: Tattooing -- Therapeutic use
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9842 , http://hdl.handle.net/10948/373 , Tattooing -- Therapeutic use
- Description: From a social constructionist perspective, the self of the therapist is the only tool that she takes into therapy with her. The study of the therapeutic self therefore becomes important as this impacts on the quality of therapy received by the client. This treatise explores the development of the researcher’s therapeutic self through the storying of significant learning experiences in the course of her training in counselling psychology. An analysis of the narrative reveals the substance of some of the soul tattoos that make up her therapeutic self. The study was undertaken from an action research approach, thus emphasising the investigation of the therapeutic self in the field and feeding this information back into the practice of counselling psychology in the course of the research project. The themes extracted in the analysis reveal the process of action learning and what constituted significant learning experiences for the researcher. The researcher found that certain conditions were required for the formation of soul tattoos and that merely obtaining a masters degree in counselling psychology was not sufficient preparation for the practice of counselling psychology.
- Full Text:
- Date Issued: 2005
An investigation of the experiences and perceptions of teachers with regards to staff development in a Namibian secondary school
- Authors: Nasima, Gideon Emmanuel
- Date: 2005
- Subjects: Education -- Namibia Teachers -- In-service training -- Namibia School management and organization -- Namibia School principals -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1649 , http://hdl.handle.net/10962/d1003532
- Description: Staff development (SD) is regarded as an important process, both for the professional growth of teachers and the organizational development of schools. The literature on SD uses the concepts of ‘SD’, ‘professional development’ and ‘in-service training of teachers’ interchangeably. The purpose of this study is to investigate the teachers’ experiences and perceptions of SD practices in a Namibian secondary school. This qualitative case study was carried out at the school where I am teaching. Two methods were used to collect the data, namely a blend of semi-structured and unstructured interviews with three teachers and one focus group interview with five teachers. The analysis of the data collected was carried using the method suggested by Taylor and Bogdan (1998) which includes discovery, coding and discounting. These concepts are discussed in Chapter Three. The main finding of this research regards SD at the school as mainly in line with the traditional view. The study also made three other unusual findings that differ from the traditional view of SD held at the school. First, the principal’s role as a human resource manager of SD; second the pastoral role of a principal in SD and third the role of teachers’ unions in SD. All these findings are important for SD practices in schools and for further research because little is known in the current literature on SD. Finally, this study proposes further research to develop an organizational development (OD) cycle of problem solving to help create an internal policy on SD, which is currently nonexistent at the school.
- Full Text:
- Date Issued: 2005
- Authors: Nasima, Gideon Emmanuel
- Date: 2005
- Subjects: Education -- Namibia Teachers -- In-service training -- Namibia School management and organization -- Namibia School principals -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1649 , http://hdl.handle.net/10962/d1003532
- Description: Staff development (SD) is regarded as an important process, both for the professional growth of teachers and the organizational development of schools. The literature on SD uses the concepts of ‘SD’, ‘professional development’ and ‘in-service training of teachers’ interchangeably. The purpose of this study is to investigate the teachers’ experiences and perceptions of SD practices in a Namibian secondary school. This qualitative case study was carried out at the school where I am teaching. Two methods were used to collect the data, namely a blend of semi-structured and unstructured interviews with three teachers and one focus group interview with five teachers. The analysis of the data collected was carried using the method suggested by Taylor and Bogdan (1998) which includes discovery, coding and discounting. These concepts are discussed in Chapter Three. The main finding of this research regards SD at the school as mainly in line with the traditional view. The study also made three other unusual findings that differ from the traditional view of SD held at the school. First, the principal’s role as a human resource manager of SD; second the pastoral role of a principal in SD and third the role of teachers’ unions in SD. All these findings are important for SD practices in schools and for further research because little is known in the current literature on SD. Finally, this study proposes further research to develop an organizational development (OD) cycle of problem solving to help create an internal policy on SD, which is currently nonexistent at the school.
- Full Text:
- Date Issued: 2005
Incorporating indigenous management in rock art sites in KwaZulu-Natal
- Authors: Ndlovu, Ndukuyakhe
- Date: 2005
- Subjects: Rock paintings -- Drakenberg Mountains , Cave paintings -- Drakensberg Mountains , San (African people) -- Art , Art, Prehistoric -- Drakensberg Mountains , Art, Prehistoric -- South Africa , Heritage tourism -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2089 , http://hdl.handle.net/10962/d1002652 , Rock paintings -- Drakenberg Mountains , Cave paintings -- Drakensberg Mountains , San (African people) -- Art , Art, Prehistoric -- Drakensberg Mountains , Art, Prehistoric -- South Africa , Heritage tourism -- South Africa
- Description: The majestic mountains of the uKhahlamba Drakensberg, formed many millennia ago were home to the Bushmen[footnote 1] or San people. They lived at these mountains for thousands of years before they were colonised by the Bantu speakers and the Europeans. Academic writings for many years have perpetuated the thinking that Bushman people were largely extinct. The dominance of this view in the academic writings was encouraged by historical evidence that Europeans and Bantu speakers hunted and killed Bushmen over the last several centuries. Researchers argue that the extermination of the Bushmen was because they were less human in the eyes of the foreigners, due to cattle raiding. There is still some element of this thinking amongst today’s academics, although research in the last decade is questioning this thinking. The question of whether descendants do exist is relevant to issues of rights of access to ancestral sacred sites, in particular rock art sites. At present, access to rock art sites is granted on qualification as an authentic fee-paying tourist (or affordability) rather than on group rights to a cultural heritage resource (cultural rights). Based on this, I argue that access to rock art sites is based on qualification rather than by right. This is largely driven by an approach that emphasises the physical conservation and financial sustainability of a site, rather than its spiritual maintenance. It has become clear that the interests in rock art by tourists and Bushman descendants are distinct from each other. Tourists have an aesthetic significance for rock art while Bushmen descendants have a spiritual significance for the paintings. Beyond any doubt, the physically based and financially driven approach has brought new challenges to today’s Bushmen descendants, whom in reaffirming their identities now have a new challenge to overcome. Not only are the rock art sites physically threatened but also they have lost much of their spiritual powers. Their fate lies in the hands of heritage officers who must determine access rights to the painted shelters. Both the National Heritage Resources Act and the KwaZulu-Natal Heritage Act acknowledge living heritage. However, the existence of this heritage is judged against the physical approach to rock art management. If the practises of descendants are perceived to be a threat to the rock art, they will not be approved. The case of the Duma is a classic example. Prior to the ritual ceremony at Game Pass Shelter, Kamberg, they were informed of the minimum standards for opening a rock art site to public and rules of how people should behave while visiting painted shelters. While it was evident that there are problems with the two approaches, the spiritual and physical approach, discussed in the thesis, it is important that solutions are identified. I do not believe that one approach on its own will be good enough, for reasons discussed in the thesis. Instead, the two approaches should be implemented together to compliment each other by identifying common grounds. I provide strategies as to how I believe that such a common ground can be reached. In addition, I provide my own analytical thinking as to how these strategies can be achieved. There is no general consensus over which term is appropriate. Both terms are considered by some academics to be derogatory or pejorative (Chennels 2003). San means vagabond and was given to the Bushmen by Khoi-Khoi people, because they considered themselves of a better social class, as they had domesticated animals and were more sedentary than Bushmen. However, according to WIMSA (Thoma 2003) the word San is derived from the Hai||om language meaning “people who gather”. It is normally written Saan but it has been accepted to write San. In 1993 the San requested to be called San when referred to as an entire group. If one refers to individual people/groups they like to be called by their language and cultural name i.e. Khwe, !Kung, !Xun, Ju|’hoansi, ‡Khomani, N|u, |’Auni, Hai||om, etc In this thesis, Bushmen is a preferred term, because it is a better-known term among the people who are central to this study. It is used without any insulting connotations attached to the term.
- Full Text:
- Date Issued: 2005
- Authors: Ndlovu, Ndukuyakhe
- Date: 2005
- Subjects: Rock paintings -- Drakenberg Mountains , Cave paintings -- Drakensberg Mountains , San (African people) -- Art , Art, Prehistoric -- Drakensberg Mountains , Art, Prehistoric -- South Africa , Heritage tourism -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2089 , http://hdl.handle.net/10962/d1002652 , Rock paintings -- Drakenberg Mountains , Cave paintings -- Drakensberg Mountains , San (African people) -- Art , Art, Prehistoric -- Drakensberg Mountains , Art, Prehistoric -- South Africa , Heritage tourism -- South Africa
- Description: The majestic mountains of the uKhahlamba Drakensberg, formed many millennia ago were home to the Bushmen[footnote 1] or San people. They lived at these mountains for thousands of years before they were colonised by the Bantu speakers and the Europeans. Academic writings for many years have perpetuated the thinking that Bushman people were largely extinct. The dominance of this view in the academic writings was encouraged by historical evidence that Europeans and Bantu speakers hunted and killed Bushmen over the last several centuries. Researchers argue that the extermination of the Bushmen was because they were less human in the eyes of the foreigners, due to cattle raiding. There is still some element of this thinking amongst today’s academics, although research in the last decade is questioning this thinking. The question of whether descendants do exist is relevant to issues of rights of access to ancestral sacred sites, in particular rock art sites. At present, access to rock art sites is granted on qualification as an authentic fee-paying tourist (or affordability) rather than on group rights to a cultural heritage resource (cultural rights). Based on this, I argue that access to rock art sites is based on qualification rather than by right. This is largely driven by an approach that emphasises the physical conservation and financial sustainability of a site, rather than its spiritual maintenance. It has become clear that the interests in rock art by tourists and Bushman descendants are distinct from each other. Tourists have an aesthetic significance for rock art while Bushmen descendants have a spiritual significance for the paintings. Beyond any doubt, the physically based and financially driven approach has brought new challenges to today’s Bushmen descendants, whom in reaffirming their identities now have a new challenge to overcome. Not only are the rock art sites physically threatened but also they have lost much of their spiritual powers. Their fate lies in the hands of heritage officers who must determine access rights to the painted shelters. Both the National Heritage Resources Act and the KwaZulu-Natal Heritage Act acknowledge living heritage. However, the existence of this heritage is judged against the physical approach to rock art management. If the practises of descendants are perceived to be a threat to the rock art, they will not be approved. The case of the Duma is a classic example. Prior to the ritual ceremony at Game Pass Shelter, Kamberg, they were informed of the minimum standards for opening a rock art site to public and rules of how people should behave while visiting painted shelters. While it was evident that there are problems with the two approaches, the spiritual and physical approach, discussed in the thesis, it is important that solutions are identified. I do not believe that one approach on its own will be good enough, for reasons discussed in the thesis. Instead, the two approaches should be implemented together to compliment each other by identifying common grounds. I provide strategies as to how I believe that such a common ground can be reached. In addition, I provide my own analytical thinking as to how these strategies can be achieved. There is no general consensus over which term is appropriate. Both terms are considered by some academics to be derogatory or pejorative (Chennels 2003). San means vagabond and was given to the Bushmen by Khoi-Khoi people, because they considered themselves of a better social class, as they had domesticated animals and were more sedentary than Bushmen. However, according to WIMSA (Thoma 2003) the word San is derived from the Hai||om language meaning “people who gather”. It is normally written Saan but it has been accepted to write San. In 1993 the San requested to be called San when referred to as an entire group. If one refers to individual people/groups they like to be called by their language and cultural name i.e. Khwe, !Kung, !Xun, Ju|’hoansi, ‡Khomani, N|u, |’Auni, Hai||om, etc In this thesis, Bushmen is a preferred term, because it is a better-known term among the people who are central to this study. It is used without any insulting connotations attached to the term.
- Full Text:
- Date Issued: 2005
Development of an experimental system to investigate the interaction between the Helicoverpa armigera stunt virus capsid protein and viral RNA
- Authors: Nel, Andrew James Mascré
- Date: 2005
- Subjects: Helicoverpa armigera , RNA viruses
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3946 , http://hdl.handle.net/10962/d1004005 , Helicoverpa armigera , RNA viruses
- Description: Tetraviruses are entomopathogenic viruses that propagate solely in lepidopteran hosts. Viruses of this group possess non-enveloped 38- to 40-nm capsids arranged in T = 4 surface symmetry. The viral genome consists of one or two single stranded positive sense RNA strands, which define the two genera of this family, the monopartite betatetraviruses and the bipartite omegatetraviruses. Two extensively studied members of the tetraviruses are the omegatetraviruses, Helicoverpa armigera stunt virus (HaSV) and the closely related Nudaurelia capensis ω virus (NωV). The larger genomic strand of HaSV (RNA1) encodes the viral replicase, while the other (RNA2) encodes the 71-kDa capsid precursor protein (p71). The pro-capsid is assembled from 240 copies of p71, which undergo a maturation auto-catalytic cleavage into the 64-kDa (p64) capsid protein and a 7-kDa peptide (p7) forming the capsid shell. The mechanism for the recognition and packaging of the viral genome is poorly understood for these viruses. The principle objective of the research described in this study was to develop in vitro and in vivo experimental systems to investigate interactions between the N terminal domain of HaSV p71 and viral RNAs. More specifically, the two positively charged clusters of predominantly arginine residues that are conserved amongst tetraviruses and the structurally analologous nodaviruses capsid protomers’ N terminal domains were investigated. An in vitro RNA-protein “pull down” system was developed using the rapid protein purification technique of the IMPACTTM-CN system. The coding sequence of the N terminal domain of p71 was fused to that of a chitin binding affinity tag (intein). This fusion protein was used as protein bait for the viral RNA. It was proposed that if RNA interacted with the fusion protein, it would be pulled down by the mass of affinity matrix and be precipitated and fluoresce when analysed by agarose gel electrophoresis using ethidium bromide. Despite optimisation of the in vitro assay, results were affected by the interaction between the intein-tag and nucleic acids, the state of the expressed fusion protein (in particular self-cleavage) and the excessive fluorescence present on the gels. The ADH2-GAPDH yeast expression system was used to investigate the in vivo assembly of p71 containing deletions of either one or both clusters within N terminal domain. It was found that all p71 mutants were expressed with the exception of the mutant containing a deletion of the second cluster. The reasons for this still require further investigation. The expressed p71 mutants were not processed into p64 and were degraded in vivo. In addition, an experimental attempt to purify assembled p71 mutant VLPs was unsuccessful. The assembly defect of p71 mutants emphasised the significance of the clusters, which are possibly required for interaction with viral RNAs for efficient VLP assembly. The results of this study suggest that an alternative tag or in vitro RNA-protein interaction assay be used. In addition, further experiments are required to investigate whether the co-expression of full length viral RNAs are required to rescue the in vivo assembly defect of p71 mutants into VLPs.
- Full Text:
- Date Issued: 2005
- Authors: Nel, Andrew James Mascré
- Date: 2005
- Subjects: Helicoverpa armigera , RNA viruses
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3946 , http://hdl.handle.net/10962/d1004005 , Helicoverpa armigera , RNA viruses
- Description: Tetraviruses are entomopathogenic viruses that propagate solely in lepidopteran hosts. Viruses of this group possess non-enveloped 38- to 40-nm capsids arranged in T = 4 surface symmetry. The viral genome consists of one or two single stranded positive sense RNA strands, which define the two genera of this family, the monopartite betatetraviruses and the bipartite omegatetraviruses. Two extensively studied members of the tetraviruses are the omegatetraviruses, Helicoverpa armigera stunt virus (HaSV) and the closely related Nudaurelia capensis ω virus (NωV). The larger genomic strand of HaSV (RNA1) encodes the viral replicase, while the other (RNA2) encodes the 71-kDa capsid precursor protein (p71). The pro-capsid is assembled from 240 copies of p71, which undergo a maturation auto-catalytic cleavage into the 64-kDa (p64) capsid protein and a 7-kDa peptide (p7) forming the capsid shell. The mechanism for the recognition and packaging of the viral genome is poorly understood for these viruses. The principle objective of the research described in this study was to develop in vitro and in vivo experimental systems to investigate interactions between the N terminal domain of HaSV p71 and viral RNAs. More specifically, the two positively charged clusters of predominantly arginine residues that are conserved amongst tetraviruses and the structurally analologous nodaviruses capsid protomers’ N terminal domains were investigated. An in vitro RNA-protein “pull down” system was developed using the rapid protein purification technique of the IMPACTTM-CN system. The coding sequence of the N terminal domain of p71 was fused to that of a chitin binding affinity tag (intein). This fusion protein was used as protein bait for the viral RNA. It was proposed that if RNA interacted with the fusion protein, it would be pulled down by the mass of affinity matrix and be precipitated and fluoresce when analysed by agarose gel electrophoresis using ethidium bromide. Despite optimisation of the in vitro assay, results were affected by the interaction between the intein-tag and nucleic acids, the state of the expressed fusion protein (in particular self-cleavage) and the excessive fluorescence present on the gels. The ADH2-GAPDH yeast expression system was used to investigate the in vivo assembly of p71 containing deletions of either one or both clusters within N terminal domain. It was found that all p71 mutants were expressed with the exception of the mutant containing a deletion of the second cluster. The reasons for this still require further investigation. The expressed p71 mutants were not processed into p64 and were degraded in vivo. In addition, an experimental attempt to purify assembled p71 mutant VLPs was unsuccessful. The assembly defect of p71 mutants emphasised the significance of the clusters, which are possibly required for interaction with viral RNAs for efficient VLP assembly. The results of this study suggest that an alternative tag or in vitro RNA-protein interaction assay be used. In addition, further experiments are required to investigate whether the co-expression of full length viral RNAs are required to rescue the in vivo assembly defect of p71 mutants into VLPs.
- Full Text:
- Date Issued: 2005
An analysis of the compliance approach used by revenue authorities with specific reference to case selection and risk profiling
- Nel, M J
- Authors: Nel, M J
- Date: 2005
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:878 , http://hdl.handle.net/10962/d1001632
- Description: The vision of probably all revenue authorities is to promote compliance with the provisions of the taxation laws and to ensure responsible enforcement by the revenue authorities, thereby contributing to the economic well being of the country. As with virtually all revenue authorities the South African Revenue Services has to a large extent implemented the self-assessment approach to tax assessments. Because this system depends on this process of selfassessment, an effective risk-based audit approach is required to ensure that tax compliance and responsible enforcement is adhered to. An effective case selection methodology is required for revenue authorities to make informed choices on how best to direct their activities in order to address areas of greatest risk. Given these imperatives, the purpose of this study is to examine the case selection methodologies used by certain revenue authorities, including the South African Revenue Services, and to focus on the key elements of case selection: the use of computerised database systems, industry profiles, third party data and the role of the risk profiler. The results of the study indicate that the case selection methodology of the South African Revenue Services is lacking in some areas. Computerised risk analysis is limited to a certain classes of taxpayers and other aspects of concern are also highlighted in this study.
- Full Text:
- Date Issued: 2005
- Authors: Nel, M J
- Date: 2005
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:878 , http://hdl.handle.net/10962/d1001632
- Description: The vision of probably all revenue authorities is to promote compliance with the provisions of the taxation laws and to ensure responsible enforcement by the revenue authorities, thereby contributing to the economic well being of the country. As with virtually all revenue authorities the South African Revenue Services has to a large extent implemented the self-assessment approach to tax assessments. Because this system depends on this process of selfassessment, an effective risk-based audit approach is required to ensure that tax compliance and responsible enforcement is adhered to. An effective case selection methodology is required for revenue authorities to make informed choices on how best to direct their activities in order to address areas of greatest risk. Given these imperatives, the purpose of this study is to examine the case selection methodologies used by certain revenue authorities, including the South African Revenue Services, and to focus on the key elements of case selection: the use of computerised database systems, industry profiles, third party data and the role of the risk profiler. The results of the study indicate that the case selection methodology of the South African Revenue Services is lacking in some areas. Computerised risk analysis is limited to a certain classes of taxpayers and other aspects of concern are also highlighted in this study.
- Full Text:
- Date Issued: 2005
Stress, coping resources and adjustment of married mothers in the teaching profession
- Authors: Nell, Reinette Deidre
- Date: 2005
- Subjects: Women teachers -- Life skills assessment -- South Africa , Work and family -- South Africa -- Psychological aspects , Life skills , Stress (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9851 , http://hdl.handle.net/10948/387 , Women teachers -- Life skills assessment -- South Africa , Work and family -- South Africa -- Psychological aspects , Life skills , Stress (Psychology)
- Description: The changes that have taken place in the South African educational system over the past few years have placed teachers under increasing stress. While abundant overseas literature is available regarding teacher stress, limited studies have focused specifically on South African samples. Female teachers, and working mothers, often experience additional stressors to men. Studies on women’s health have received little attention in comparison with the magnitude of research conducted on men’s health. The aim of the current study was to explore and describe the stress, coping resources and adjustment of married mothers in the teaching profession, and to explore and describe the patterns of stress and coping resources of these women. A non-experimental, exploratory descriptive study was employed. A biographical questionnaire and three paper-and-pencil measures, namely the Experience of Work and Life Questionnaire, the Coping Resources Inventory and the Personal, Home, Social and Formal Relations Questionnaire, were administered to 31 full-time primary school teachers who are married mothers of dependent children under the age of 14 years. A non-probability convenience sampling technique was employed. Descriptive statistics and cluster analysis were used in the data analysis. The results of the WLQ for this sample indicated that the mean score for the total level of stress fell within the high range, but with regards to the mode, the majority of the participants had average scores. The results of the CRI indicated an average level of coping resources for the present sample. The sample scored slightly above average on seven of the eleven components of the adjustment areas of the PHSF and slightly below average on the other four components. The participants in cluster one had average levels of stress and an average level of coping resources. The participants in cluster two scored very high levels of stress and average levels of coping resources. The participants in cluster three had very high levels of stress and low levels of coping resources. Suggestions were made for future research involving the stress, coping resources and adjustment of married mothers in the teaching profession. Finally, the limitations as well as the value of the research were outlined.
- Full Text:
- Date Issued: 2005
- Authors: Nell, Reinette Deidre
- Date: 2005
- Subjects: Women teachers -- Life skills assessment -- South Africa , Work and family -- South Africa -- Psychological aspects , Life skills , Stress (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9851 , http://hdl.handle.net/10948/387 , Women teachers -- Life skills assessment -- South Africa , Work and family -- South Africa -- Psychological aspects , Life skills , Stress (Psychology)
- Description: The changes that have taken place in the South African educational system over the past few years have placed teachers under increasing stress. While abundant overseas literature is available regarding teacher stress, limited studies have focused specifically on South African samples. Female teachers, and working mothers, often experience additional stressors to men. Studies on women’s health have received little attention in comparison with the magnitude of research conducted on men’s health. The aim of the current study was to explore and describe the stress, coping resources and adjustment of married mothers in the teaching profession, and to explore and describe the patterns of stress and coping resources of these women. A non-experimental, exploratory descriptive study was employed. A biographical questionnaire and three paper-and-pencil measures, namely the Experience of Work and Life Questionnaire, the Coping Resources Inventory and the Personal, Home, Social and Formal Relations Questionnaire, were administered to 31 full-time primary school teachers who are married mothers of dependent children under the age of 14 years. A non-probability convenience sampling technique was employed. Descriptive statistics and cluster analysis were used in the data analysis. The results of the WLQ for this sample indicated that the mean score for the total level of stress fell within the high range, but with regards to the mode, the majority of the participants had average scores. The results of the CRI indicated an average level of coping resources for the present sample. The sample scored slightly above average on seven of the eleven components of the adjustment areas of the PHSF and slightly below average on the other four components. The participants in cluster one had average levels of stress and an average level of coping resources. The participants in cluster two scored very high levels of stress and average levels of coping resources. The participants in cluster three had very high levels of stress and low levels of coping resources. Suggestions were made for future research involving the stress, coping resources and adjustment of married mothers in the teaching profession. Finally, the limitations as well as the value of the research were outlined.
- Full Text:
- Date Issued: 2005
The contribution of the Labour Court to the development of strike law
- Nengovhela, Livhuwani Adolphus
- Authors: Nengovhela, Livhuwani Adolphus
- Date: 2005
- Subjects: Strikes and lockouts -- Law and legislation -- South Africa , Labor laws and legislation -- South Africa , Labor courts -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10191 , http://hdl.handle.net/10948/430 , Strikes and lockouts -- Law and legislation -- South Africa , Labor laws and legislation -- South Africa , Labor courts -- South Africa
- Description: The Labour Relations Act 66 of 1995 brought a number of changes in the labour relations environment from its inception on 11 November 1996. The Act codified Industrial Court decisions that were already established under the strike-law jurisprudence from the Labour Relations Act 28 of 1956. These general changes to the law also impact on the strike-law regime. The purpose of this paper is to give an overview of the contributions made by the Labour Courts1 in developing strike law from the inception of the Act. The Labour Courts have made a number of decisions that have helped in clarifying the provisions of the Act. One should hasten to say that this has never been a smooth process by the courts. It will further be shown in this paper that some of the court decisions were not well accepted in the light of other considerations, such as the Constitution and the previous Industrial Court decisions. On some occasions the Constitutional Court had to intervene in order to clarify the intention of the legislature. For the purpose of effectively dealing with this topic, I shall briefly give the historical context of strike law in the form of common-law position, and the strike-law position before the Bill of Rights and the Constitution. I shall then endeavour to identify the legislative provision of the Act when it comes to strike-law provisions, at the same time identifying the important court decisions that were made.
- Full Text:
- Date Issued: 2005
- Authors: Nengovhela, Livhuwani Adolphus
- Date: 2005
- Subjects: Strikes and lockouts -- Law and legislation -- South Africa , Labor laws and legislation -- South Africa , Labor courts -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10191 , http://hdl.handle.net/10948/430 , Strikes and lockouts -- Law and legislation -- South Africa , Labor laws and legislation -- South Africa , Labor courts -- South Africa
- Description: The Labour Relations Act 66 of 1995 brought a number of changes in the labour relations environment from its inception on 11 November 1996. The Act codified Industrial Court decisions that were already established under the strike-law jurisprudence from the Labour Relations Act 28 of 1956. These general changes to the law also impact on the strike-law regime. The purpose of this paper is to give an overview of the contributions made by the Labour Courts1 in developing strike law from the inception of the Act. The Labour Courts have made a number of decisions that have helped in clarifying the provisions of the Act. One should hasten to say that this has never been a smooth process by the courts. It will further be shown in this paper that some of the court decisions were not well accepted in the light of other considerations, such as the Constitution and the previous Industrial Court decisions. On some occasions the Constitutional Court had to intervene in order to clarify the intention of the legislature. For the purpose of effectively dealing with this topic, I shall briefly give the historical context of strike law in the form of common-law position, and the strike-law position before the Bill of Rights and the Constitution. I shall then endeavour to identify the legislative provision of the Act when it comes to strike-law provisions, at the same time identifying the important court decisions that were made.
- Full Text:
- Date Issued: 2005
An analysis of strategies driving, and the successes achieved after the conversion of agricultural co-operatives to alternative business forms in South Africa
- Authors: Neser, Marius
- Date: 2005
- Subjects: Agriculture, Cooperative -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:10921 , http://hdl.handle.net/10948/146 , Agriculture, Cooperative -- South Africa
- Description: During the period 1994 to 2004, the Registrar of Co-operatives, situated in Pretoria (South Africa), considered applications and subsequently de-registered 102 agricultural and non-agricultural South African co-operatives, which then converted to alternative business forms. This research was conducted to determine the strategies driving co-operatives to convert to alternative business forms in South Africa, and to evaluate the level of success achieved in a specific case. During the research, the changing legislation relating to co-operatives was identified as one of the main drivers to convert, although during pilot testing, the respondents submitted capital forming or growth restrictions as main drivers for conversions. The main concerns about the impact of changing legislation were about voting rights changing to a one-person-one-vote, which, according to the respondents, could affect control within the co-operative. Financial ratio analysis to determine liquidity, debt management and profitability of a specific converted case was conducted by disseminating and processing data by means of Microsoft Excel spreadsheets. In the selected case the conversion did not guarantee success, and the financial figures showed that a conversion did not have immediate impact, although the last three years of the 10-year period analysed showed signs of a positive growth on the return on total assets (ROA). External influences, especially legislation in the broad sense, and specifically regarding Broad Based Black Economic Empowerment (BBBEE), Employment Equity and Labour practise may have serious impact on the choice of business form the prospective entrepreneur decides upon, or the existing enterprise bases its decisions on as to its future business form.
- Full Text:
- Date Issued: 2005
- Authors: Neser, Marius
- Date: 2005
- Subjects: Agriculture, Cooperative -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:10921 , http://hdl.handle.net/10948/146 , Agriculture, Cooperative -- South Africa
- Description: During the period 1994 to 2004, the Registrar of Co-operatives, situated in Pretoria (South Africa), considered applications and subsequently de-registered 102 agricultural and non-agricultural South African co-operatives, which then converted to alternative business forms. This research was conducted to determine the strategies driving co-operatives to convert to alternative business forms in South Africa, and to evaluate the level of success achieved in a specific case. During the research, the changing legislation relating to co-operatives was identified as one of the main drivers to convert, although during pilot testing, the respondents submitted capital forming or growth restrictions as main drivers for conversions. The main concerns about the impact of changing legislation were about voting rights changing to a one-person-one-vote, which, according to the respondents, could affect control within the co-operative. Financial ratio analysis to determine liquidity, debt management and profitability of a specific converted case was conducted by disseminating and processing data by means of Microsoft Excel spreadsheets. In the selected case the conversion did not guarantee success, and the financial figures showed that a conversion did not have immediate impact, although the last three years of the 10-year period analysed showed signs of a positive growth on the return on total assets (ROA). External influences, especially legislation in the broad sense, and specifically regarding Broad Based Black Economic Empowerment (BBBEE), Employment Equity and Labour practise may have serious impact on the choice of business form the prospective entrepreneur decides upon, or the existing enterprise bases its decisions on as to its future business form.
- Full Text:
- Date Issued: 2005
Action research on an organization development intervention in a secondary school in the Erongo education region of Namibia
- Authors: Neshila, Selma
- Date: 2005
- Subjects: Education -- Namibia , Educational change -- Namibia , Education and state -- Namibia , School management and organization -- Namibia
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:1418 , http://hdl.handle.net/10962/d1003299
- Description: Organisations that will not, that resist, that cannot, that are incapable, that lack the confidence or that believe it’s not possible to change are likely to stagnate and die (Smith: work in progress). Since independence in March 1990, the new Namibian Government has realized that the quality, efficiency and effectiveness of Namibian schools depends on the ability of teachers and other stakeholders to be innovators and facilitators of change, especially through effective communication, effective meetings, working through conflict, solving problems and making decisions. Organization Development (OD) is an effective, planned change approach for improving organization workgroup processes. Resting on a foundation of values and assumptions about people and organizations, OD promotes collaboration, interdependence and interconnectedness, empowerment, participation and involvement in problem solving and decision-making for all members. Based primarily on a normative, re-educative strategy and secondarily on a rational-empirical strategy, OD assumes that people will change if and when they realize that change is advantageous to them. OD makes use of interventions to determine areas requiring change. The intervention used for my research included a survey-data-feedback (SDF) where data was gathered, analyzed and fed back to the participants. The data was used as a basis for problem solving and training in organizational processes of communication. The case study involved 23 teachers. Journal entries, observation, formal and non-formal interviews as well as focus interviews were used as data collection tools. Participants wanted to see immediate organizational changes thus it was important to remind them that OD is a long-term change approach and that there is no quick fix. Initially, participants were used to the norm of fault finding to determine areas requiring change. However, a year later, during problem solving sessions, I observed collaborative and positive involvement by all participants. Finally, the outcome of the intervention based on the data from the communication workshop and the problem-solving meetings revealed that participants want OD to be institutionalized in all Namibian schools.
- Full Text:
- Date Issued: 2005
- Authors: Neshila, Selma
- Date: 2005
- Subjects: Education -- Namibia , Educational change -- Namibia , Education and state -- Namibia , School management and organization -- Namibia
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:1418 , http://hdl.handle.net/10962/d1003299
- Description: Organisations that will not, that resist, that cannot, that are incapable, that lack the confidence or that believe it’s not possible to change are likely to stagnate and die (Smith: work in progress). Since independence in March 1990, the new Namibian Government has realized that the quality, efficiency and effectiveness of Namibian schools depends on the ability of teachers and other stakeholders to be innovators and facilitators of change, especially through effective communication, effective meetings, working through conflict, solving problems and making decisions. Organization Development (OD) is an effective, planned change approach for improving organization workgroup processes. Resting on a foundation of values and assumptions about people and organizations, OD promotes collaboration, interdependence and interconnectedness, empowerment, participation and involvement in problem solving and decision-making for all members. Based primarily on a normative, re-educative strategy and secondarily on a rational-empirical strategy, OD assumes that people will change if and when they realize that change is advantageous to them. OD makes use of interventions to determine areas requiring change. The intervention used for my research included a survey-data-feedback (SDF) where data was gathered, analyzed and fed back to the participants. The data was used as a basis for problem solving and training in organizational processes of communication. The case study involved 23 teachers. Journal entries, observation, formal and non-formal interviews as well as focus interviews were used as data collection tools. Participants wanted to see immediate organizational changes thus it was important to remind them that OD is a long-term change approach and that there is no quick fix. Initially, participants were used to the norm of fault finding to determine areas requiring change. However, a year later, during problem solving sessions, I observed collaborative and positive involvement by all participants. Finally, the outcome of the intervention based on the data from the communication workshop and the problem-solving meetings revealed that participants want OD to be institutionalized in all Namibian schools.
- Full Text:
- Date Issued: 2005