Information communication and technology in Port Elizabeth secondary schools : exploring the digital divide
- Authors: Adebisi, Adeolu Abiodun
- Date: 2008
- Subjects: Information technology -- Study and teaching (Secondary) -- South Africa , Educational technology -- South Africa , Information technology -- South Africa , Computer-assisted instruction -- South Africa , Educational innovations
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9770 , http://hdl.handle.net/10948/914 , Information technology -- Study and teaching (Secondary) -- South Africa , Educational technology -- South Africa , Information technology -- South Africa , Computer-assisted instruction -- South Africa , Educational innovations
- Description: The primary goal of the research is to investigate the extent of ICT adoption in secondary schools within the larger Port Elizabeth area. In order to demonstrate the current status, two geographical areas within that area namely privileged and less privileged areas will be selected and surveyed. The main objective of this research study is to survey the access to ICT services by learners and teachers living and working in less privileged communities compared with that of learners and teachers in the more privileged communities of Port Elizabeth. At present all the schools in these communities are funded by the same provincial government, but the extent of the digital divide is not known. This research will investigate the factors that lead to the inequalities in the access to ICT among secondary school learners and teachers. This research has the following sub goals and objectives: 1. To identify the factors that impact on the status of access to ICT services; 2. To determine which socio-economic factors contribute to the status of access to ICT services in the specific areas; 3. To determine the status of access to ICT services in specific communities within the larger Port Elizabeth area; 4. To determine whether the level of access differs between secondary schools and the homes of teachers and learners in the identified areas.
- Full Text:
- Date Issued: 2008
- Authors: Adebisi, Adeolu Abiodun
- Date: 2008
- Subjects: Information technology -- Study and teaching (Secondary) -- South Africa , Educational technology -- South Africa , Information technology -- South Africa , Computer-assisted instruction -- South Africa , Educational innovations
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9770 , http://hdl.handle.net/10948/914 , Information technology -- Study and teaching (Secondary) -- South Africa , Educational technology -- South Africa , Information technology -- South Africa , Computer-assisted instruction -- South Africa , Educational innovations
- Description: The primary goal of the research is to investigate the extent of ICT adoption in secondary schools within the larger Port Elizabeth area. In order to demonstrate the current status, two geographical areas within that area namely privileged and less privileged areas will be selected and surveyed. The main objective of this research study is to survey the access to ICT services by learners and teachers living and working in less privileged communities compared with that of learners and teachers in the more privileged communities of Port Elizabeth. At present all the schools in these communities are funded by the same provincial government, but the extent of the digital divide is not known. This research will investigate the factors that lead to the inequalities in the access to ICT among secondary school learners and teachers. This research has the following sub goals and objectives: 1. To identify the factors that impact on the status of access to ICT services; 2. To determine which socio-economic factors contribute to the status of access to ICT services in the specific areas; 3. To determine the status of access to ICT services in specific communities within the larger Port Elizabeth area; 4. To determine whether the level of access differs between secondary schools and the homes of teachers and learners in the identified areas.
- Full Text:
- Date Issued: 2008
The use of mobile commerce to improve the services of life insurance post sale activities
- Authors: Afrifa, Rexford
- Date: 2008
- Subjects: Mobile commerce -- South Africa , Mobile computing -- South Africa , Mobile communication systems -- South Africa , Personal communication service systems -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8718 , http://hdl.handle.net/10948/913 , Mobile commerce -- South Africa , Mobile computing -- South Africa , Mobile communication systems -- South Africa , Personal communication service systems -- South Africa
- Description: Mobile commerce, due to its inherent characteristics of mobility and reachability in enhancing personalized services provides an excellent means for life insurers to exploit such avenue in their service offerings. The objective of this study was to determine whether mobile commerce can be used to improve the services of life insurance post-sale activities. This objective was achieved with the relevant literature and empirical study. To accomplish the objective of this treatise, a triangulated research approach was selected and a multiple-case study consisting of four cases was conducted. The four cases selected comprised of leading insurers with large market share in the life insurance market in South-Africa. The primary data were collected through questionnaire and face-to-face interviews with selected respondents. The main finding shows that the respondents had a positive view about mobile commerce and its application in their companies. This was demonstrated by 80 percent of respondents who agreed that mobile commerce was more of an opportunity rather than a challenge or even a threat for the life insurance market. The results also indicate that customer relationship management, mobile messaging services and field service automation functions were used by all the insurers; although minor discrepancies were observed due to the efficiency of each firms IT infrastructure. The Internet was found to assist in the collection of more precise data, to increase service performing abilities. Some of the major obstacles that were found to hinder the deployment of mobile commerce in the industry were security concerns, low and infrequent internet usage and performance by supporting industries. Cumbersome and inefficient legacy systems were declared as the greatest technological weakness particularly by respondents from case 1 and 2. Conversely, hardware and network infrastructure, lack of software packages, lack of technical expertise and the fear of disintermediation was rated low in hindering the deployment of mobile commerce. However, according to the findings the key benefits derived from engaging in increased mobile commerce activities include enhancing customer contact and service, more transparency and speed of claims management, increasing client retention and policy extension rates hence increasing overall company profit.
- Full Text:
- Date Issued: 2008
- Authors: Afrifa, Rexford
- Date: 2008
- Subjects: Mobile commerce -- South Africa , Mobile computing -- South Africa , Mobile communication systems -- South Africa , Personal communication service systems -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8718 , http://hdl.handle.net/10948/913 , Mobile commerce -- South Africa , Mobile computing -- South Africa , Mobile communication systems -- South Africa , Personal communication service systems -- South Africa
- Description: Mobile commerce, due to its inherent characteristics of mobility and reachability in enhancing personalized services provides an excellent means for life insurers to exploit such avenue in their service offerings. The objective of this study was to determine whether mobile commerce can be used to improve the services of life insurance post-sale activities. This objective was achieved with the relevant literature and empirical study. To accomplish the objective of this treatise, a triangulated research approach was selected and a multiple-case study consisting of four cases was conducted. The four cases selected comprised of leading insurers with large market share in the life insurance market in South-Africa. The primary data were collected through questionnaire and face-to-face interviews with selected respondents. The main finding shows that the respondents had a positive view about mobile commerce and its application in their companies. This was demonstrated by 80 percent of respondents who agreed that mobile commerce was more of an opportunity rather than a challenge or even a threat for the life insurance market. The results also indicate that customer relationship management, mobile messaging services and field service automation functions were used by all the insurers; although minor discrepancies were observed due to the efficiency of each firms IT infrastructure. The Internet was found to assist in the collection of more precise data, to increase service performing abilities. Some of the major obstacles that were found to hinder the deployment of mobile commerce in the industry were security concerns, low and infrequent internet usage and performance by supporting industries. Cumbersome and inefficient legacy systems were declared as the greatest technological weakness particularly by respondents from case 1 and 2. Conversely, hardware and network infrastructure, lack of software packages, lack of technical expertise and the fear of disintermediation was rated low in hindering the deployment of mobile commerce. However, according to the findings the key benefits derived from engaging in increased mobile commerce activities include enhancing customer contact and service, more transparency and speed of claims management, increasing client retention and policy extension rates hence increasing overall company profit.
- Full Text:
- Date Issued: 2008
Evaluating service quality at George Municipality : a complaints management systems approach
- Authors: Alcock, Sandra
- Date: 2008
- Subjects: Consumer complaints -- South Africa -- George , Consumer satisfaction -- South Africa -- George , Customer services -- Management , Local government -- South Africa -- George
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8717 , http://hdl.handle.net/10948/917 , Consumer complaints -- South Africa -- George , Consumer satisfaction -- South Africa -- George , Customer services -- Management , Local government -- South Africa -- George
- Description: The search for service and product quality has come to the forefront of business studies as the most important consumer trend of the past two decades. Studies conducted indicate that the 1990s saw a dramatic change in customer expectations concerning service quality and standards with a corresponding increase in the number of complaints from disgruntled customers. In response to this, many organisations have established customer care and complaints management services to respond to the need of customers. A substantial amount of literature exists on the subject of complaints management and its role in service quality, however, the focus has been on organisations in the private sector. The research undertaken in this paper aimed to investigate the role of complaints management systems (CMS) to evaluate service quality. The focus of this research was on local government with special attention on George Municipality. A literature review was done to establish the importance of service quality for local government as well as to investigate the link between an effective complaints management system and improvement in service quality. Furthermore, it was necessary to investigate the characteristics, design and implementation of an effective complaints management system. A questionnaire was developed in order to obtain primary data from a selected sample group. The data obtained from the questionnaire was statistically analysed and interpreted. The core findings from the analysed questionnaire indicated the following: service quality is relevant in local government; there is no clear method to measure service quality; no formal and structured complaints management system exist, and the implementation of an effective complaints management system will both improve service delivery and provide benefits to all involved. iv This study recommends that: service quality standards and measurement be of strategic importance to local government; customers should be consulted and involved when determining the service quality standards and measurement, and an organised and structured complaints management system that seeks to address all complaints in order to improve the level of service quality to customers be developed. Finally, the success of the CMS will depend on management’s commitment to change on a continuous basis as well as the degree to which management proactively resolves customer complaint through the involvement of the customer.
- Full Text:
- Date Issued: 2008
- Authors: Alcock, Sandra
- Date: 2008
- Subjects: Consumer complaints -- South Africa -- George , Consumer satisfaction -- South Africa -- George , Customer services -- Management , Local government -- South Africa -- George
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8717 , http://hdl.handle.net/10948/917 , Consumer complaints -- South Africa -- George , Consumer satisfaction -- South Africa -- George , Customer services -- Management , Local government -- South Africa -- George
- Description: The search for service and product quality has come to the forefront of business studies as the most important consumer trend of the past two decades. Studies conducted indicate that the 1990s saw a dramatic change in customer expectations concerning service quality and standards with a corresponding increase in the number of complaints from disgruntled customers. In response to this, many organisations have established customer care and complaints management services to respond to the need of customers. A substantial amount of literature exists on the subject of complaints management and its role in service quality, however, the focus has been on organisations in the private sector. The research undertaken in this paper aimed to investigate the role of complaints management systems (CMS) to evaluate service quality. The focus of this research was on local government with special attention on George Municipality. A literature review was done to establish the importance of service quality for local government as well as to investigate the link between an effective complaints management system and improvement in service quality. Furthermore, it was necessary to investigate the characteristics, design and implementation of an effective complaints management system. A questionnaire was developed in order to obtain primary data from a selected sample group. The data obtained from the questionnaire was statistically analysed and interpreted. The core findings from the analysed questionnaire indicated the following: service quality is relevant in local government; there is no clear method to measure service quality; no formal and structured complaints management system exist, and the implementation of an effective complaints management system will both improve service delivery and provide benefits to all involved. iv This study recommends that: service quality standards and measurement be of strategic importance to local government; customers should be consulted and involved when determining the service quality standards and measurement, and an organised and structured complaints management system that seeks to address all complaints in order to improve the level of service quality to customers be developed. Finally, the success of the CMS will depend on management’s commitment to change on a continuous basis as well as the degree to which management proactively resolves customer complaint through the involvement of the customer.
- Full Text:
- Date Issued: 2008
The effect of a HIV/AIDS life skills programme on the knowledge, attitudes and perceptions of grade nine learners
- Authors: Alma, Erica
- Date: 2008
- Subjects: Life skills -- Study and teaching -- South Africa , AIDS (Disease) -- Study and teaching -- South Africa , HIV infections -- Study and teaching -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9916 , http://hdl.handle.net/10948/739 , Life skills -- Study and teaching -- South Africa , AIDS (Disease) -- Study and teaching -- South Africa , HIV infections -- Study and teaching -- South Africa
- Description: The first cases of Acquired Immune Deficiency Syndrome (AIDS) were reported in 1981 and in 1983 the Human Immunodeficiency Virus (HIV) was identified. Today, over 40 million individuals globally are living with HIV/AIDS. As there is currently no cure for the disease, it is projected to reach pandemic proportions in the 21st century. In South Africa at the end of 2006, over 5.3 million individuals were living with HIV/AIDS, with affluent and educated South Africans showing the highest HIVprevalence growth rate. The HIV prevalence amongst 15 to 24 year old South Africans is 10.4 percent. It has become vital that youth receive education about HIV/AIDS as early as possible, to ensure that they do not contract the virus. Psycho-education seeks to teach psychological knowledge and skills to individuals. This is also known as life skills teaching. The National Departments of Health and Education have developed a life skills programme for schools. This programme aims to, amongst others; educate young people about HIV/AIDS. The effectiveness of this programme will be assessed in two schools in the Port Elizabeth area. In this exploratory descriptive, triangulation research study, a quasiexperimental, one group pre- and post-test design was used to assess the effectiveness of the life skills programme amongst 211 Grade nine middle to upper socio-economic group learners. Four focus groups were conducted after the programme to explore the learners attitudes and perceptions of HIV/AIDS and their experiences of the programme. Teschs model of content analysis and Gubas model of trustworthiness were used to analyse the data obtained from the focus groups.
- Full Text:
- Date Issued: 2008
- Authors: Alma, Erica
- Date: 2008
- Subjects: Life skills -- Study and teaching -- South Africa , AIDS (Disease) -- Study and teaching -- South Africa , HIV infections -- Study and teaching -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9916 , http://hdl.handle.net/10948/739 , Life skills -- Study and teaching -- South Africa , AIDS (Disease) -- Study and teaching -- South Africa , HIV infections -- Study and teaching -- South Africa
- Description: The first cases of Acquired Immune Deficiency Syndrome (AIDS) were reported in 1981 and in 1983 the Human Immunodeficiency Virus (HIV) was identified. Today, over 40 million individuals globally are living with HIV/AIDS. As there is currently no cure for the disease, it is projected to reach pandemic proportions in the 21st century. In South Africa at the end of 2006, over 5.3 million individuals were living with HIV/AIDS, with affluent and educated South Africans showing the highest HIVprevalence growth rate. The HIV prevalence amongst 15 to 24 year old South Africans is 10.4 percent. It has become vital that youth receive education about HIV/AIDS as early as possible, to ensure that they do not contract the virus. Psycho-education seeks to teach psychological knowledge and skills to individuals. This is also known as life skills teaching. The National Departments of Health and Education have developed a life skills programme for schools. This programme aims to, amongst others; educate young people about HIV/AIDS. The effectiveness of this programme will be assessed in two schools in the Port Elizabeth area. In this exploratory descriptive, triangulation research study, a quasiexperimental, one group pre- and post-test design was used to assess the effectiveness of the life skills programme amongst 211 Grade nine middle to upper socio-economic group learners. Four focus groups were conducted after the programme to explore the learners attitudes and perceptions of HIV/AIDS and their experiences of the programme. Teschs model of content analysis and Gubas model of trustworthiness were used to analyse the data obtained from the focus groups.
- Full Text:
- Date Issued: 2008
A hybrid approach to beach erosion mitigation and amenity enhancement, St Francis Bay, South Africa
- Authors: Anderson, Dylan Rory
- Date: 2008
- Subjects: Beach erosion -- South Africa -- St Francis Bay , Shore protection -- South Africa -- St Francis Bay , Restoration ecology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10611 , http://hdl.handle.net/10948/d1008192 , Beach erosion -- South Africa -- St Francis Bay , Shore protection -- South Africa -- St Francis Bay , Restoration ecology
- Description: The St Francis Bay beach has experienced chronic erosion over the past three decades. This erosion can largely be attributed to the stabilisation of a large coastal dunefield which contributed +/- 80 percent of the sand supply to St Francis Bay. Stabilisation began in 1975 initially using plant cuttings and followed by the development of the Santareme holiday suburb resulting in complete stabilisation by 1985. Effects were felt from the late 1970‟s and since then the beach has retreated at between 0.5 - 3 m.yr-1. Erosion has encroached on beachfront properties since the early 1990‟s, leading to the placement of 3-4 m high unsightly rock revetments along much of the beach. Where properly maintained these structures have proved successful in protecting the properties behind, however exacerbated erosion of areas in front and adjacent to these structures is evident. Currently no dry beach is present at high tide for most of the year, leading to a significant reduction in beach amenity value. Several technical studies to investigate remediation of this beach erosion problem have been conducted since the early 1990‟s. This study includes investigations into the processes and dynamics of the existing environment and evaluation of the effectiveness and impacts of several elements of a hybrid approach to coastal protection and amenity enhancement for St Francis Bay beach. This proposal incorporated: Multi-Purpose Reefs (MPR‟s) offshore, for coastal protection and amenity enhancement in terms of surfing; beach nourishment with sand from the Kromme Estuary and dune rehabilitation with appropriate native sand binding species. Extensive fieldwork and data collection were conducted, this included: a series of bathymetric surveys; diving surveys and a helicopter flight; sediment sampling; beach profiling and deployment of a wave/current meter. Analysis of these data provided a greater understanding of the existing environment and dynamics of St Francis Bay and provided reliable inputs for numerical modelling. Numerical and physical modelling was conducted to assess the existing processes and conduct MPR design testing. In addition calibrated hydrodynamic modelling of the Kromme Estuary was conducted in order to assess the impacts of sand extraction from the large sand banks within the mouth of the Kromme Estuary for use as beach nourishment. Comparison of bathymetric survey data collected by the author in 2005/06 with survey data collected by the South African Navy Hydrographic Office (SANHO) in 1952 suggest a major loss of sand from the bay, with a volume difference of some 8.8 X 106 m3 calculated. Greater losses were measured between 10-15 m water depths, with shallow areas of +/- 5 m water depth, remaining more stable. This can be attributed to the presence of shallow reef and rocky substrate through much of the bay at this depth range. Monthly RTK GPS survey data from September 2006 to September 2007 indicates a total loss of 40 000 m3 over this period with the greatest losses measured along the northern part of the beach. The greatest losses were measured after large long period waves from a southerly to south-easterly direction occurred in conjunction with equinox tides in mid March 2007. Sediment sampling at over 100 locations within the bay indicated a high percentage of reef (26 percent) and fairly consistent grain size in the fine to medium size class throughout much of the beach, bay and large sand bank within the estuary. While the majority of the South African Coast is exposed to the predominant south westerly winds and waves, St Francis Bay‟s orientation means that waves from a south easterly to easterly direction dominate. The results of the detailed numerical modelling of the hydrodynamics agree with previous calculations and modelling results which concluded that strong unidirectional longshore currents occur along the headland due to the oblique angle of wave incidence and the close to parallel angle of wave incidence along the beach leads to weak longshore currents of variable direction. Erosion along St Francis Bay beach is a result of cross-shore erosion due to large waves from a southerly to easterly direction. Detached breakwaters are the most effective form of coastal protection in these environments and MPR‟s offer additional benefits over traditional breakwater structures. Results of empirical calculations and numerical modelling indicate that the MPR‟s will provide effective coastal protection through the processes of wave dissipation, wave rotation, salient formation and alteration of nearshore circulation. Physical modelling results allowed the MPR design to be assessed and refined in terms of surfing amenity enhancement and construction constraints. In addition numerical modelling results indicate that impacts due to the extraction of up to 600 000 m3 of sand from the lower Kromme Estuary result in highly localised velocity reduction, mainly limited to the extraction areas. The calculated rate of sediment influx into the lower Kromme Estuary indicates that limited extraction, in the order of 20 000 – 40 000 m3 per year, should be sustainable in the long term. Sedimentation of the lower estuary over recent years has had negative recreational and ecological impacts, through reduced navigability and water exchange respectively. Therefore both the estuary and beach systems prove to benefit from this approach. Although not investigated in detail as part of this study, evidence from numerous projects worldwide indicates that foredunes help to trap wind-blown sand on the beach and form a buffer to storm erosion, therefore dune rehabilitation with native sand-binding plant species was recommended as the third element of the proposed remediation of St Francis Bay beach.
- Full Text:
- Date Issued: 2008
- Authors: Anderson, Dylan Rory
- Date: 2008
- Subjects: Beach erosion -- South Africa -- St Francis Bay , Shore protection -- South Africa -- St Francis Bay , Restoration ecology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10611 , http://hdl.handle.net/10948/d1008192 , Beach erosion -- South Africa -- St Francis Bay , Shore protection -- South Africa -- St Francis Bay , Restoration ecology
- Description: The St Francis Bay beach has experienced chronic erosion over the past three decades. This erosion can largely be attributed to the stabilisation of a large coastal dunefield which contributed +/- 80 percent of the sand supply to St Francis Bay. Stabilisation began in 1975 initially using plant cuttings and followed by the development of the Santareme holiday suburb resulting in complete stabilisation by 1985. Effects were felt from the late 1970‟s and since then the beach has retreated at between 0.5 - 3 m.yr-1. Erosion has encroached on beachfront properties since the early 1990‟s, leading to the placement of 3-4 m high unsightly rock revetments along much of the beach. Where properly maintained these structures have proved successful in protecting the properties behind, however exacerbated erosion of areas in front and adjacent to these structures is evident. Currently no dry beach is present at high tide for most of the year, leading to a significant reduction in beach amenity value. Several technical studies to investigate remediation of this beach erosion problem have been conducted since the early 1990‟s. This study includes investigations into the processes and dynamics of the existing environment and evaluation of the effectiveness and impacts of several elements of a hybrid approach to coastal protection and amenity enhancement for St Francis Bay beach. This proposal incorporated: Multi-Purpose Reefs (MPR‟s) offshore, for coastal protection and amenity enhancement in terms of surfing; beach nourishment with sand from the Kromme Estuary and dune rehabilitation with appropriate native sand binding species. Extensive fieldwork and data collection were conducted, this included: a series of bathymetric surveys; diving surveys and a helicopter flight; sediment sampling; beach profiling and deployment of a wave/current meter. Analysis of these data provided a greater understanding of the existing environment and dynamics of St Francis Bay and provided reliable inputs for numerical modelling. Numerical and physical modelling was conducted to assess the existing processes and conduct MPR design testing. In addition calibrated hydrodynamic modelling of the Kromme Estuary was conducted in order to assess the impacts of sand extraction from the large sand banks within the mouth of the Kromme Estuary for use as beach nourishment. Comparison of bathymetric survey data collected by the author in 2005/06 with survey data collected by the South African Navy Hydrographic Office (SANHO) in 1952 suggest a major loss of sand from the bay, with a volume difference of some 8.8 X 106 m3 calculated. Greater losses were measured between 10-15 m water depths, with shallow areas of +/- 5 m water depth, remaining more stable. This can be attributed to the presence of shallow reef and rocky substrate through much of the bay at this depth range. Monthly RTK GPS survey data from September 2006 to September 2007 indicates a total loss of 40 000 m3 over this period with the greatest losses measured along the northern part of the beach. The greatest losses were measured after large long period waves from a southerly to south-easterly direction occurred in conjunction with equinox tides in mid March 2007. Sediment sampling at over 100 locations within the bay indicated a high percentage of reef (26 percent) and fairly consistent grain size in the fine to medium size class throughout much of the beach, bay and large sand bank within the estuary. While the majority of the South African Coast is exposed to the predominant south westerly winds and waves, St Francis Bay‟s orientation means that waves from a south easterly to easterly direction dominate. The results of the detailed numerical modelling of the hydrodynamics agree with previous calculations and modelling results which concluded that strong unidirectional longshore currents occur along the headland due to the oblique angle of wave incidence and the close to parallel angle of wave incidence along the beach leads to weak longshore currents of variable direction. Erosion along St Francis Bay beach is a result of cross-shore erosion due to large waves from a southerly to easterly direction. Detached breakwaters are the most effective form of coastal protection in these environments and MPR‟s offer additional benefits over traditional breakwater structures. Results of empirical calculations and numerical modelling indicate that the MPR‟s will provide effective coastal protection through the processes of wave dissipation, wave rotation, salient formation and alteration of nearshore circulation. Physical modelling results allowed the MPR design to be assessed and refined in terms of surfing amenity enhancement and construction constraints. In addition numerical modelling results indicate that impacts due to the extraction of up to 600 000 m3 of sand from the lower Kromme Estuary result in highly localised velocity reduction, mainly limited to the extraction areas. The calculated rate of sediment influx into the lower Kromme Estuary indicates that limited extraction, in the order of 20 000 – 40 000 m3 per year, should be sustainable in the long term. Sedimentation of the lower estuary over recent years has had negative recreational and ecological impacts, through reduced navigability and water exchange respectively. Therefore both the estuary and beach systems prove to benefit from this approach. Although not investigated in detail as part of this study, evidence from numerous projects worldwide indicates that foredunes help to trap wind-blown sand on the beach and form a buffer to storm erosion, therefore dune rehabilitation with native sand-binding plant species was recommended as the third element of the proposed remediation of St Francis Bay beach.
- Full Text:
- Date Issued: 2008
Impact assessment of the local governmant reforms in Rwanda : the case study of Kigali City
- Authors: Apollo, Munanura
- Date: 2008
- Subjects: Local government -- Rwanda
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:8226 , http://hdl.handle.net/10948/918 , Local government -- Rwanda
- Description: The local governance system has undergone positive changes since 1994 when the Government of National Unity took over power in Rwanda. The government has instituted democratic changes in the structure and functioning of local government through decentralisation. Since 2000 when the decentralisation policy was launched, Rwanda has evolved a model of local governance that has come to be emulated by its neighbouring countries. Since 2000, when the Local Government Act affected the decentralised structures of local government, some changes have occurred, challenges have emerged and constraints have been experienced in the implementation of the policy of decentralisation. Methodology used in the impact assessment study The researcher administered questionnaires, conducted interviews and documentary analysis. The assessment covered (3) three districts which were purposively selected on the basis of criteria that were considered sufficiently representative and based on the rationale of the study. Key findings of the study The study established that the restructuring exercise streamlined the structures of local governments, aligned mandates to the structures, and graded jobs in line with responsibilities. These reforms have improved the performance of the local governments. Despite notable improvements, the study established that there were still gaps in the local government system that needed to be addressed. These included: i. There is a big skills gap in most local governments. Some positions in local government are not filled due to inadequate resources. ii. Some local governments are finding it difficult to attract qualified and competent personnel to take up jobs at technical and managerial levels. iii. Local government lack attractive working environments. iv. There are limited career growth opportunities in local government service. xiv v. There is low local revenue. This has imposed limitations to accountability, supervision and monitoring of local government programmes. vi. Professional staff in local government is not adequately facilitated to do their work efficiently and effectively. vii. The existing capacity building programmes contribute marginally to career growth of individual staff members. viii. New reform programmes for improving service delivery such as results oriented management (ROM) and fiscal decentralisation strategy (FDS) have been rolled out but are not yet utilised in some of the local governments.
- Full Text:
- Date Issued: 2008
- Authors: Apollo, Munanura
- Date: 2008
- Subjects: Local government -- Rwanda
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:8226 , http://hdl.handle.net/10948/918 , Local government -- Rwanda
- Description: The local governance system has undergone positive changes since 1994 when the Government of National Unity took over power in Rwanda. The government has instituted democratic changes in the structure and functioning of local government through decentralisation. Since 2000 when the decentralisation policy was launched, Rwanda has evolved a model of local governance that has come to be emulated by its neighbouring countries. Since 2000, when the Local Government Act affected the decentralised structures of local government, some changes have occurred, challenges have emerged and constraints have been experienced in the implementation of the policy of decentralisation. Methodology used in the impact assessment study The researcher administered questionnaires, conducted interviews and documentary analysis. The assessment covered (3) three districts which were purposively selected on the basis of criteria that were considered sufficiently representative and based on the rationale of the study. Key findings of the study The study established that the restructuring exercise streamlined the structures of local governments, aligned mandates to the structures, and graded jobs in line with responsibilities. These reforms have improved the performance of the local governments. Despite notable improvements, the study established that there were still gaps in the local government system that needed to be addressed. These included: i. There is a big skills gap in most local governments. Some positions in local government are not filled due to inadequate resources. ii. Some local governments are finding it difficult to attract qualified and competent personnel to take up jobs at technical and managerial levels. iii. Local government lack attractive working environments. iv. There are limited career growth opportunities in local government service. xiv v. There is low local revenue. This has imposed limitations to accountability, supervision and monitoring of local government programmes. vi. Professional staff in local government is not adequately facilitated to do their work efficiently and effectively. vii. The existing capacity building programmes contribute marginally to career growth of individual staff members. viii. New reform programmes for improving service delivery such as results oriented management (ROM) and fiscal decentralisation strategy (FDS) have been rolled out but are not yet utilised in some of the local governments.
- Full Text:
- Date Issued: 2008
An evaluation of how dividend policies impact on the share value of selected companies
- Authors: Barman, Graham Paul
- Date: 2008
- Subjects: Dividends , Corporations -- Valuation
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8976 , http://hdl.handle.net/10948/806 , Dividends , Corporations -- Valuation
- Description: Wealth maximisation for shareholders is a combination of dividend payouts and an increase in share price. Management, as custodians of shareholder interest, should therefore consciously work towards influencing the share price favourably. The purpose of this study is to examine and analyse, through an empirical study, dividend policy and the effect, if any, it has on the value of shares by conducting a survey among financial managers to measure their views regarding dividends and share value and to either validate or disprove the academic explanation of the practice of paying dividends.
- Full Text:
- Date Issued: 2008
- Authors: Barman, Graham Paul
- Date: 2008
- Subjects: Dividends , Corporations -- Valuation
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8976 , http://hdl.handle.net/10948/806 , Dividends , Corporations -- Valuation
- Description: Wealth maximisation for shareholders is a combination of dividend payouts and an increase in share price. Management, as custodians of shareholder interest, should therefore consciously work towards influencing the share price favourably. The purpose of this study is to examine and analyse, through an empirical study, dividend policy and the effect, if any, it has on the value of shares by conducting a survey among financial managers to measure their views regarding dividends and share value and to either validate or disprove the academic explanation of the practice of paying dividends.
- Full Text:
- Date Issued: 2008
Perspectives of teachers on the problem of child sexual abuse in a squatter camp
- Authors: Bashman, Lindelwa Edna
- Date: 2008
- Subjects: Child sexual abuse -- South Africa -- Port Elizabeth , Sexually abused children -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9537 , http://hdl.handle.net/10948/684 , Child sexual abuse -- South Africa -- Port Elizabeth , Sexually abused children -- South Africa -- Port Elizabeth
- Description: Child sexual abuse is a worldwide phenomenon that takes a major toll in squatter camps in South Africa. The conditions under which the squatters live promote and aggravate the abuse. Sadly, the victims hit hardest by the abuse are the children. The negative effects caused by the abuse lead to problems in the educational tasks of these children. This study proposes that teachers can play a significant role in assisting them to overcome their problem. The aim of this study was to: • investigate the perceptions of teachers of the problem of the sexual abuse of children coming from squatter camps; • empower teachers with strategies that will help to alleviate the problem; and • formulate some recommendations on dealing with the situation in the classroom. The literature was reviewed with the aim of substantiating a compact theoretical basis for the study. Various aspects were discussed, such as • the different definitions of child sexual abuse; • short- and long-term effects of the abuse; and • contributory factors of child sexual abuse. This study followed a qualitative design, which is interpretive, naturalistic, descriptive, holistic and exploratory in nature. The participants, chosen purposefully for this study, were ten teachers, teaching children coming from a squatter camp in the Motherwell Township of Nelson Mandela Bay. Themes that emerged from the transcripts of the interviews were: • Sexual abuse has a negative effect on children and causes them to develop problems. • Teachers can play a significant role in assisting learners who are sexually abused. • There are various reasons why sexual abuse is prevalent in squatter camps. The recommendations made are based on the findings of this study and propose to empower teachers so that they will be able to make a difference in the lives of their abused learners.
- Full Text:
- Date Issued: 2008
- Authors: Bashman, Lindelwa Edna
- Date: 2008
- Subjects: Child sexual abuse -- South Africa -- Port Elizabeth , Sexually abused children -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9537 , http://hdl.handle.net/10948/684 , Child sexual abuse -- South Africa -- Port Elizabeth , Sexually abused children -- South Africa -- Port Elizabeth
- Description: Child sexual abuse is a worldwide phenomenon that takes a major toll in squatter camps in South Africa. The conditions under which the squatters live promote and aggravate the abuse. Sadly, the victims hit hardest by the abuse are the children. The negative effects caused by the abuse lead to problems in the educational tasks of these children. This study proposes that teachers can play a significant role in assisting them to overcome their problem. The aim of this study was to: • investigate the perceptions of teachers of the problem of the sexual abuse of children coming from squatter camps; • empower teachers with strategies that will help to alleviate the problem; and • formulate some recommendations on dealing with the situation in the classroom. The literature was reviewed with the aim of substantiating a compact theoretical basis for the study. Various aspects were discussed, such as • the different definitions of child sexual abuse; • short- and long-term effects of the abuse; and • contributory factors of child sexual abuse. This study followed a qualitative design, which is interpretive, naturalistic, descriptive, holistic and exploratory in nature. The participants, chosen purposefully for this study, were ten teachers, teaching children coming from a squatter camp in the Motherwell Township of Nelson Mandela Bay. Themes that emerged from the transcripts of the interviews were: • Sexual abuse has a negative effect on children and causes them to develop problems. • Teachers can play a significant role in assisting learners who are sexually abused. • There are various reasons why sexual abuse is prevalent in squatter camps. The recommendations made are based on the findings of this study and propose to empower teachers so that they will be able to make a difference in the lives of their abused learners.
- Full Text:
- Date Issued: 2008
A critical analysis of the definition of gross income
- Authors: Beck, Tracy Geraldine
- Date: 2008
- Subjects: Income tax -- Law and legislation -- South Africa -- Interpretation and construction , Capital gains tax -- South Africa , Income tax -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8977 , http://hdl.handle.net/10948/805 , Income tax -- Law and legislation -- South Africa -- Interpretation and construction , Capital gains tax -- South Africa , Income tax -- South Africa
- Description: Income tax is levied upon a taxpayer’s taxable income. Various steps are taken in order to arrive at the taxpayer’s taxable income. The starting point when calculating taxable income is determining the taxpayer’s ‘gross income’. ‘Gross income’ is defined in terms of section 1 of the Act. Various terms within the gross income definition are not clearly defined, except in the case of a ‘resident’. Even in the case of the definition of a ‘resident’, the aspect of ‘ordinarily resident’ is not defined and nor is the ‘place of effective management’. The following components fall within the definition of ‘gross income’: • The total amount in cash or otherwise; • received by or accrued to, or in favour of, a person; • from anywhere, in the case of a person who is a resident; • from a South African source (or deemed source), in the case of a non-resident; • other than receipts or accruals of a capital nature. The ‘total amount’ in ‘cash or otherwise’ is the first step when determining the taxable income of a taxpayer for a particular year of assessment. Gross income only arises if an amount is received or has accrued; this amount need not be in the form of money but must have a money value. The next component, ‘received by or accrued to’, is related to time and implies that a taxpayer should include amounts that have been ‘received by’, as well as amounts that have ‘accrued to’ him during the year of assessment. ‘Resident’ and ‘non-resident’ unlike the other components, are defined in terms of section 1 of the Income Tax Act. There are two rules used to determine whether natural persons are residents, these are: • To determine whether natural persons are ‘ordinarily resident’; or • where the natural person is not an ‘ordinarily resident’, the ‘physical presence test’ will be applied. ‘Source’ means origin and not place; it is therefore the ‘originating cause of the receipt of the money’. There is no single definition for the word ‘source’ as circumstances may differ in various cases. The facts of each case must be analysed in order to determine the actual source of income for that particular case. The last component of the definition of ‘gross income’ is the exclusion of ‘receipts and accruals of a capital nature’. The Act does not define the meaning of ‘capital nature’ but does indicate that receipts or accruals of a capital nature are, with certain exceptions, not included in ‘gross income’. Receipts or accruals that are not of a capital nature is known as ‘revenue’ and subjected to tax. This study is primarily aimed at an examination of court cases related to the various components falling within the definition of ‘gross income’.
- Full Text:
- Date Issued: 2008
- Authors: Beck, Tracy Geraldine
- Date: 2008
- Subjects: Income tax -- Law and legislation -- South Africa -- Interpretation and construction , Capital gains tax -- South Africa , Income tax -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8977 , http://hdl.handle.net/10948/805 , Income tax -- Law and legislation -- South Africa -- Interpretation and construction , Capital gains tax -- South Africa , Income tax -- South Africa
- Description: Income tax is levied upon a taxpayer’s taxable income. Various steps are taken in order to arrive at the taxpayer’s taxable income. The starting point when calculating taxable income is determining the taxpayer’s ‘gross income’. ‘Gross income’ is defined in terms of section 1 of the Act. Various terms within the gross income definition are not clearly defined, except in the case of a ‘resident’. Even in the case of the definition of a ‘resident’, the aspect of ‘ordinarily resident’ is not defined and nor is the ‘place of effective management’. The following components fall within the definition of ‘gross income’: • The total amount in cash or otherwise; • received by or accrued to, or in favour of, a person; • from anywhere, in the case of a person who is a resident; • from a South African source (or deemed source), in the case of a non-resident; • other than receipts or accruals of a capital nature. The ‘total amount’ in ‘cash or otherwise’ is the first step when determining the taxable income of a taxpayer for a particular year of assessment. Gross income only arises if an amount is received or has accrued; this amount need not be in the form of money but must have a money value. The next component, ‘received by or accrued to’, is related to time and implies that a taxpayer should include amounts that have been ‘received by’, as well as amounts that have ‘accrued to’ him during the year of assessment. ‘Resident’ and ‘non-resident’ unlike the other components, are defined in terms of section 1 of the Income Tax Act. There are two rules used to determine whether natural persons are residents, these are: • To determine whether natural persons are ‘ordinarily resident’; or • where the natural person is not an ‘ordinarily resident’, the ‘physical presence test’ will be applied. ‘Source’ means origin and not place; it is therefore the ‘originating cause of the receipt of the money’. There is no single definition for the word ‘source’ as circumstances may differ in various cases. The facts of each case must be analysed in order to determine the actual source of income for that particular case. The last component of the definition of ‘gross income’ is the exclusion of ‘receipts and accruals of a capital nature’. The Act does not define the meaning of ‘capital nature’ but does indicate that receipts or accruals of a capital nature are, with certain exceptions, not included in ‘gross income’. Receipts or accruals that are not of a capital nature is known as ‘revenue’ and subjected to tax. This study is primarily aimed at an examination of court cases related to the various components falling within the definition of ‘gross income’.
- Full Text:
- Date Issued: 2008
Resilience in HIV/AIDS' adolescent headed families
- Authors: Beeka, Hershilla A
- Date: 2008
- Subjects: Resilience (Personality trait) in adolescence -- South Africa -- Port Elizabeth , Children of AIDS patients -- South Africa -- Family relationships , Families, Black -- Research -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9911 , http://hdl.handle.net/10948/922 , Resilience (Personality trait) in adolescence -- South Africa -- Port Elizabeth , Children of AIDS patients -- South Africa -- Family relationships , Families, Black -- Research -- South Africa
- Description: HIV/AIDS has presented humanity with various challenges, one of which is the manner in which it has affected family structure and patterns. Parental illness and eventual death due to the HIV/AIDS pandemic is escalating. One of the major challenges of HIV/AIDS in southern Africa is the increase in the number of orphaned and vulnerable children. As a result new family forms are emerging such as the "skip-generation" family in which children or adolescent siblings head the family. It is anticipated that HIV/AIDS in South Africa will progressively increase the number of such families. During this time of profound family change, the family as an institution has remained remarkably resilient. The present study utilised the Family Resilience Framework and the Resiliency Model of Family Stress, Adjustment and Adaptation to explore and describe the resilience of HIV/AIDS’ adolescent headed families. A qualitative, exploratory-descriptive research design, which was assessed against Guba’s (1985) model of trustworthiness, was employed and the participants were sampled using non-probability purposive sampling. The Masizakhe Community Project volunteers (an AIDS Community Project in Kwazakhele, Port Elizabeth receiving support from the iThemba AIDS Foundation) assisted in identifying participants according to the predetermined inclusion criteria. The sample consisted of four female, adolescent heads of HIV/AIDS’ affected households, who volunteered at the Masizakhe Community Project and resided in Kwazakhele. The data that was collected via audio-recorded semi structured interviews were transcribed verbatim and subjected to Interpretive Phenomenological Analysis. Family resilience factors that emerged included intrafamilial strengths (family cohesion, organisation, hardiness, and adaptability); social support resources (especially from the community project, friends, and community members); family appraisal processes; and problem solving and coping strategies. Extended family support was partial and largely financial. The findings from this study provided insights into the resilience of adolescent-headed families; provided guidance for the development of intervention programmes to assist these families; and affirmed the existing strengths of the families. Furthermore, it has contributed to the research and literature on family resilience and formed the foundation for future research projects.
- Full Text:
- Date Issued: 2008
- Authors: Beeka, Hershilla A
- Date: 2008
- Subjects: Resilience (Personality trait) in adolescence -- South Africa -- Port Elizabeth , Children of AIDS patients -- South Africa -- Family relationships , Families, Black -- Research -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9911 , http://hdl.handle.net/10948/922 , Resilience (Personality trait) in adolescence -- South Africa -- Port Elizabeth , Children of AIDS patients -- South Africa -- Family relationships , Families, Black -- Research -- South Africa
- Description: HIV/AIDS has presented humanity with various challenges, one of which is the manner in which it has affected family structure and patterns. Parental illness and eventual death due to the HIV/AIDS pandemic is escalating. One of the major challenges of HIV/AIDS in southern Africa is the increase in the number of orphaned and vulnerable children. As a result new family forms are emerging such as the "skip-generation" family in which children or adolescent siblings head the family. It is anticipated that HIV/AIDS in South Africa will progressively increase the number of such families. During this time of profound family change, the family as an institution has remained remarkably resilient. The present study utilised the Family Resilience Framework and the Resiliency Model of Family Stress, Adjustment and Adaptation to explore and describe the resilience of HIV/AIDS’ adolescent headed families. A qualitative, exploratory-descriptive research design, which was assessed against Guba’s (1985) model of trustworthiness, was employed and the participants were sampled using non-probability purposive sampling. The Masizakhe Community Project volunteers (an AIDS Community Project in Kwazakhele, Port Elizabeth receiving support from the iThemba AIDS Foundation) assisted in identifying participants according to the predetermined inclusion criteria. The sample consisted of four female, adolescent heads of HIV/AIDS’ affected households, who volunteered at the Masizakhe Community Project and resided in Kwazakhele. The data that was collected via audio-recorded semi structured interviews were transcribed verbatim and subjected to Interpretive Phenomenological Analysis. Family resilience factors that emerged included intrafamilial strengths (family cohesion, organisation, hardiness, and adaptability); social support resources (especially from the community project, friends, and community members); family appraisal processes; and problem solving and coping strategies. Extended family support was partial and largely financial. The findings from this study provided insights into the resilience of adolescent-headed families; provided guidance for the development of intervention programmes to assist these families; and affirmed the existing strengths of the families. Furthermore, it has contributed to the research and literature on family resilience and formed the foundation for future research projects.
- Full Text:
- Date Issued: 2008
A model for sustainable operational excellence through knowledge management practices and continuous improvement principles
- Beeken, Wilhelm Frederik Hartmann
- Authors: Beeken, Wilhelm Frederik Hartmann
- Date: 2008
- Subjects: Organizational effectiveness , Knowledge management
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: vital:8699 , http://hdl.handle.net/10948/1061 , Organizational effectiveness , Knowledge management
- Description: Integrating Knowledge Management maturity with associated Continuous Improvement efforts in order to remain competitive, is absent in most Operational Excellence initiatives. Furthermore, the intertwined relationship of Continuous Improvement and work development becomes a crucial focus area for organisations that wish to establish a continuously evolving management system consisting of core values, methodologies and tools with the aim of creating more satisfied customers with less resources. The old industrial paradigm that focused on labour, capital, materials, and energy viewed technology and knowledge as external influences on production. This framework is now being challenged and a new trend is emerging. This trend seeks to transform the old industrial system to that of a knowledge-based which one can lead to innovation and hence economic advantage. Continuous Improvement as a concept has roots in many other fields, including social-technical system design, human relations progress and the discussion surrounding ‘lean manufacturing’. This study will focus on Continuous Improvement as a noun, referring to on the outcome of the process of a stream of emergent innovations. The primary objective of the study is to create a model that will present an organisation with a three-layer knowledge reference process grid, which will align and depict the surrounding business knowledge functions, knowledge-enabling processes and knowledge-manipulating processes aiming for enabling Operational Excellence. This study promotes the theory that the cognitive domain layer, functional domain layer and resources layer of an organisation can be increasingly stimulated by focusing effort through Continuous Improvement routines towards the associated inter-organisational knowledge processes sustaining Operational Excellence. The proposed model is structured to review, compare, evaluate and integrate existing Knowledge Management practices of ii an organisation within the context of clear definitions for important concepts of Knowledge Management. Additionally the model provides an assessment instrument for evaluating the organisation’s Knowledge Management maturity level. The study concerns itself with two concepts towards business value creation which will lead to increased Operational Excellence. Firstly, the maturity of Knowledge Management processes, and secondly the level of the organisation wide process of focused and continuous incremental improvement namely, Continuous Improvement. A case study with PriceWaterhouseCoopers was concluded and an on-line Internet survey was used with a stratified sample from knowledge workers to test the factors from both a Knowledge Management and Continuous Improvement perspective. These factors were verified by means of a hypotheses network, describing in a structured and descriptive way, the importance of Knowledge Management and Continuous Improvement collectively on sustainable Operational Excellence as an integral development of Operational Excellence. With respect to Knowledge Management practices, the hypothesis network proposed at least three domains, which of knowledge generation, knowledge mobilisation and knowledge application as important input to the proposed process grid of knowledge development and associated layer elements. From a Continuous Improvement principles perspective it is apparent that elements from Continuous Improvement routines and Continuous Improvement characteristics are associated with the organisation Continuous Improvement ability. These findings are also a result of the deliberate design of processes, tools, structures and environments with the intent to increase, renew, share or improve the use of knowledge represented in any of the three elements for structural, human and social of intellectual capital. The proposed model combines the framework of the Boyd cycle as it is conceptualized as self-assessment activities, for it becomes possible to use them as basis of a self-assessment with sense making navigational properties across iii the proposed knowledge process grid for the model. The model will facilitate the concept of a three-layer knowledge reference process grid, which represents the main components of the knowledge processes within the cognitive domain layer, functional layer and resources layer of an organisation. The proposed model will deliver a single value that co-exists with the Knowledge Management maturity level and Continuous Improvement readiness index rating attained. Logical relationships to dynamic, evolving and flexible enabling Knowledge Management practices for each layer of the proposed three-layer knowledge reference process grid will be integrated as output of the proposed model. The research has limitations as Knowledge Management practices were measured using a subjective norm scale. It is suggested that a more comprehensive measure of Knowledge Management maturity processes may be needed to represent this construct. The complexity of the proposed model and the number of associated variables included in the results need further confirmation using possible multiple samples and additional measures of Knowledge Management maturity and Continuous Improvement readiness elements. The benefit of the proposed model as a practical Operational Excellence tool is to overcome the perceived gap of implementing Knowledge Management practices and Continuous Improvement principles collectively to deliver and sustain Operational Excellence.
- Full Text:
- Date Issued: 2008
- Authors: Beeken, Wilhelm Frederik Hartmann
- Date: 2008
- Subjects: Organizational effectiveness , Knowledge management
- Language: English
- Type: Thesis , Doctoral , DBA
- Identifier: vital:8699 , http://hdl.handle.net/10948/1061 , Organizational effectiveness , Knowledge management
- Description: Integrating Knowledge Management maturity with associated Continuous Improvement efforts in order to remain competitive, is absent in most Operational Excellence initiatives. Furthermore, the intertwined relationship of Continuous Improvement and work development becomes a crucial focus area for organisations that wish to establish a continuously evolving management system consisting of core values, methodologies and tools with the aim of creating more satisfied customers with less resources. The old industrial paradigm that focused on labour, capital, materials, and energy viewed technology and knowledge as external influences on production. This framework is now being challenged and a new trend is emerging. This trend seeks to transform the old industrial system to that of a knowledge-based which one can lead to innovation and hence economic advantage. Continuous Improvement as a concept has roots in many other fields, including social-technical system design, human relations progress and the discussion surrounding ‘lean manufacturing’. This study will focus on Continuous Improvement as a noun, referring to on the outcome of the process of a stream of emergent innovations. The primary objective of the study is to create a model that will present an organisation with a three-layer knowledge reference process grid, which will align and depict the surrounding business knowledge functions, knowledge-enabling processes and knowledge-manipulating processes aiming for enabling Operational Excellence. This study promotes the theory that the cognitive domain layer, functional domain layer and resources layer of an organisation can be increasingly stimulated by focusing effort through Continuous Improvement routines towards the associated inter-organisational knowledge processes sustaining Operational Excellence. The proposed model is structured to review, compare, evaluate and integrate existing Knowledge Management practices of ii an organisation within the context of clear definitions for important concepts of Knowledge Management. Additionally the model provides an assessment instrument for evaluating the organisation’s Knowledge Management maturity level. The study concerns itself with two concepts towards business value creation which will lead to increased Operational Excellence. Firstly, the maturity of Knowledge Management processes, and secondly the level of the organisation wide process of focused and continuous incremental improvement namely, Continuous Improvement. A case study with PriceWaterhouseCoopers was concluded and an on-line Internet survey was used with a stratified sample from knowledge workers to test the factors from both a Knowledge Management and Continuous Improvement perspective. These factors were verified by means of a hypotheses network, describing in a structured and descriptive way, the importance of Knowledge Management and Continuous Improvement collectively on sustainable Operational Excellence as an integral development of Operational Excellence. With respect to Knowledge Management practices, the hypothesis network proposed at least three domains, which of knowledge generation, knowledge mobilisation and knowledge application as important input to the proposed process grid of knowledge development and associated layer elements. From a Continuous Improvement principles perspective it is apparent that elements from Continuous Improvement routines and Continuous Improvement characteristics are associated with the organisation Continuous Improvement ability. These findings are also a result of the deliberate design of processes, tools, structures and environments with the intent to increase, renew, share or improve the use of knowledge represented in any of the three elements for structural, human and social of intellectual capital. The proposed model combines the framework of the Boyd cycle as it is conceptualized as self-assessment activities, for it becomes possible to use them as basis of a self-assessment with sense making navigational properties across iii the proposed knowledge process grid for the model. The model will facilitate the concept of a three-layer knowledge reference process grid, which represents the main components of the knowledge processes within the cognitive domain layer, functional layer and resources layer of an organisation. The proposed model will deliver a single value that co-exists with the Knowledge Management maturity level and Continuous Improvement readiness index rating attained. Logical relationships to dynamic, evolving and flexible enabling Knowledge Management practices for each layer of the proposed three-layer knowledge reference process grid will be integrated as output of the proposed model. The research has limitations as Knowledge Management practices were measured using a subjective norm scale. It is suggested that a more comprehensive measure of Knowledge Management maturity processes may be needed to represent this construct. The complexity of the proposed model and the number of associated variables included in the results need further confirmation using possible multiple samples and additional measures of Knowledge Management maturity and Continuous Improvement readiness elements. The benefit of the proposed model as a practical Operational Excellence tool is to overcome the perceived gap of implementing Knowledge Management practices and Continuous Improvement principles collectively to deliver and sustain Operational Excellence.
- Full Text:
- Date Issued: 2008
Whole body vibration training and physical fitness of persons with diabetes melitus type II
- Authors: Bekker, Lindy
- Date: 2008
- Subjects: Diabetes -- Exercise therapy , Vibration -- Physiological effect
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10096 , http://hdl.handle.net/10948/672 , Diabetes -- Exercise therapy , Vibration -- Physiological effect
- Description: The aim of this study was to determine the effect of whole body vibration training on selected health and fitness parameters, including: blood glucose levels, blood pressure, anthropometric profile, muscular flexibility, muscular strength, muscular endurance, and aerobic endurance of persons with diabetes mellitus type II. The study was conducted in a descriptive, explorative manner utilizing a quasiexperimental design with an equistatic approach, employing match-pair design to participant grouping. The experimental design was a non-randomized two-group pre- and post-test design, in which approximately 16 male and female participants, who were chosen through convenience and snowball sampling with diabetes mellitus type II, completed the study. Pre- and post-test analysis was performed at the Biokinetics and Sport Science Unit. The whole body vibration training (experimental) group, trained three times a week for a period of ten weeks, performing exercises on the vibration platform with progressive increments in the intensity, duration, and number of the exercises. The control group remained sedentary throughout the intervention period. The dependant variables were analyzed using descriptive statistics. ANOVA was done to determine pre- and post-test differences for both the experimental and control groups for all the variables. Post-Hoc analysis was done to determine and compare differences which may have existed between the experimental and control groups, with practical significance being determined by Cohen’s D analysis. The analysis of the results revealed significant improvements in systolic blood pressure, muscular strength, muscular endurance, and aerobic endurance.
- Full Text:
- Date Issued: 2008
- Authors: Bekker, Lindy
- Date: 2008
- Subjects: Diabetes -- Exercise therapy , Vibration -- Physiological effect
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:10096 , http://hdl.handle.net/10948/672 , Diabetes -- Exercise therapy , Vibration -- Physiological effect
- Description: The aim of this study was to determine the effect of whole body vibration training on selected health and fitness parameters, including: blood glucose levels, blood pressure, anthropometric profile, muscular flexibility, muscular strength, muscular endurance, and aerobic endurance of persons with diabetes mellitus type II. The study was conducted in a descriptive, explorative manner utilizing a quasiexperimental design with an equistatic approach, employing match-pair design to participant grouping. The experimental design was a non-randomized two-group pre- and post-test design, in which approximately 16 male and female participants, who were chosen through convenience and snowball sampling with diabetes mellitus type II, completed the study. Pre- and post-test analysis was performed at the Biokinetics and Sport Science Unit. The whole body vibration training (experimental) group, trained three times a week for a period of ten weeks, performing exercises on the vibration platform with progressive increments in the intensity, duration, and number of the exercises. The control group remained sedentary throughout the intervention period. The dependant variables were analyzed using descriptive statistics. ANOVA was done to determine pre- and post-test differences for both the experimental and control groups for all the variables. Post-Hoc analysis was done to determine and compare differences which may have existed between the experimental and control groups, with practical significance being determined by Cohen’s D analysis. The analysis of the results revealed significant improvements in systolic blood pressure, muscular strength, muscular endurance, and aerobic endurance.
- Full Text:
- Date Issued: 2008
The application of section 197 of the Labour Relations Act in an outsourcing context
- Authors: Biggs, Lynn
- Date: 2008
- Subjects: South Africa. Labour Relations Act (1995) , Labor laws and legislation -- South Africa , Contracting out -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10193 , http://hdl.handle.net/10948/751 , South Africa. Labour Relations Act (1995) , Labor laws and legislation -- South Africa , Contracting out -- Law and legislation -- South Africa
- Description: Section 197 of the Labour Relations Act (LRA) in both its original form and in its current form caused much confusion and debate. Originally it was interpreted that section 197 allowed for the automatic transfer of employees in cases where there was a transfer of the whole or part of a business, trade or undertaking as a going concern. That meant that the contracts of employment transfer to the new owner and that the employees could not refuse to be transferred. Various judges were tasked with interpreting this section in its original form and thus different interpretations emerged with the Labour Appeal Court ultimately deciding in the NEHAWU v University of Cape Town matter that employers involved in the transfer can decide between them, not to transfer the employees. The LAC further held that “outsourcing” does not necessarily entail a transfer of a business. Section 197 was amended in 2002 and the effect of the provisions is that the old employer is not required to seek the consent of the employees before their contracts are transferred and that the employment contracts transfer automatically. However, the current section has also raised some difficulties especially relating to: when does a transfer of a business as a going concern take place; what constitutes a “business”; when is an entity part of a business, trade, undertaking or service? A more glaring controversy relates to whether section 197 applies to “second-generation contracting out or outsourcing”. All provisions of the LRA should be interpreted in the context to advance economic development, social justice, labour peace and democratisation of the workplace. One of the primary objects of the LRA is to give effect to and to regulate the fundamental rights of the Constitution of the Republic of South Africa, 1996. Thus section 197 is to be interpreted in light of the objectives of the LRA as well as to promote the spirit, purport and objects of the Bill of Rights. The common law and international law are both important sources of comparison. The common law allows employers who transfer businesses free to decide whether or not the transfer will include the employees of the transferor. International law, particularly the European Union and the United Kingdom, favour the approach that when an entity is transferred, it retains its identity after the transfer and the safeguarding of employee rights in the context of business transfers. European and English jurisprudence have shown that almost any combination of events can constitute a transfer of a business.
- Full Text:
- Date Issued: 2008
- Authors: Biggs, Lynn
- Date: 2008
- Subjects: South Africa. Labour Relations Act (1995) , Labor laws and legislation -- South Africa , Contracting out -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10193 , http://hdl.handle.net/10948/751 , South Africa. Labour Relations Act (1995) , Labor laws and legislation -- South Africa , Contracting out -- Law and legislation -- South Africa
- Description: Section 197 of the Labour Relations Act (LRA) in both its original form and in its current form caused much confusion and debate. Originally it was interpreted that section 197 allowed for the automatic transfer of employees in cases where there was a transfer of the whole or part of a business, trade or undertaking as a going concern. That meant that the contracts of employment transfer to the new owner and that the employees could not refuse to be transferred. Various judges were tasked with interpreting this section in its original form and thus different interpretations emerged with the Labour Appeal Court ultimately deciding in the NEHAWU v University of Cape Town matter that employers involved in the transfer can decide between them, not to transfer the employees. The LAC further held that “outsourcing” does not necessarily entail a transfer of a business. Section 197 was amended in 2002 and the effect of the provisions is that the old employer is not required to seek the consent of the employees before their contracts are transferred and that the employment contracts transfer automatically. However, the current section has also raised some difficulties especially relating to: when does a transfer of a business as a going concern take place; what constitutes a “business”; when is an entity part of a business, trade, undertaking or service? A more glaring controversy relates to whether section 197 applies to “second-generation contracting out or outsourcing”. All provisions of the LRA should be interpreted in the context to advance economic development, social justice, labour peace and democratisation of the workplace. One of the primary objects of the LRA is to give effect to and to regulate the fundamental rights of the Constitution of the Republic of South Africa, 1996. Thus section 197 is to be interpreted in light of the objectives of the LRA as well as to promote the spirit, purport and objects of the Bill of Rights. The common law and international law are both important sources of comparison. The common law allows employers who transfer businesses free to decide whether or not the transfer will include the employees of the transferor. International law, particularly the European Union and the United Kingdom, favour the approach that when an entity is transferred, it retains its identity after the transfer and the safeguarding of employee rights in the context of business transfers. European and English jurisprudence have shown that almost any combination of events can constitute a transfer of a business.
- Full Text:
- Date Issued: 2008
Towards the development of InAs/GaInSb strained-layer superlattices for infrared detection
- Authors: Botha, Lindsay
- Date: 2008
- Subjects: Gallium arsenide semiconductors , Indium alloys , Compound semiconductors , Organometallic compounds , Infrared detectors , Infrared technology , Superlattices as materials
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10526 , http://hdl.handle.net/10948/713 , Gallium arsenide semiconductors , Indium alloys , Compound semiconductors , Organometallic compounds , Infrared detectors , Infrared technology , Superlattices as materials
- Description: This study focuses on the development of InAs/GaInSb strained-layer superlattice structures by metal organic chemical vapour deposition (MOCVD), and deals with two aspects of the development of InAs/GaInSb SLS’s by MOCVD viz. the deposition of nano-scale (~100 Å) GaInSb layers, and the electrical characterization of unstrained InAs. The first part of this work aims to study the MOCVD growth of GaInSb layers in terms of deposition rate and indium incorporation on the nano-scale. This task is approached by first optimizing the growth of relatively thick (~2 μm) epitaxial films, and then assuming similar growth parameters during nano-scale deposition. The GaInSb layers were grown as part of GaInSb/GaSb quantum well (QW) structures. By using this approach, the GaInSb QW’s (~100 Å) could be characterized with the use of photoluminescence spectroscopy, which, when used in conjunction with transmission electron microscopy and/or X-ray diffractomery, proves useful in the analysis of such small scale deposition. It is shown that the growth rate of GaInSb on the nano-scale approaches the nominal growth rates determined from thick (~2 μm) GaInSb calibration layers. The In incorporation efficiency in nano-layers, however, was markedly lower than what was predicted by the GaInSb calibration layers. This reduction in indium incorporation could be the result of the effects of strain on In incorporation. The choice of substrate orientation for QW deposition was also studied. QW structures were grown simultaneously on both (100) and 2°off (100) GaSb(Te) substrates, and it is shown that growth on non-vicinal substrates is more conducive to the deposition of high quality QW structures. The second part of this study focuses on the electrical characterization of unstrained InAs. It is long known that conventional Hall measurements cannot be used to accurately characterize InAs epitaxial layers, as a result of parallel conduction resulting from surface and/or interface effects. This study looks at extracting the surface and bulk electrical properties of n-type InAs thin films directly from variable magnetic field Hall measurements. For p-type InAs, the situation is complicated by the relatively large electron to hole mobility ratio of InAs which tends to conceal the p-type nature of InAs thin films from Hall measurements. Here, this effect is illustrated by way of theoretical simulation of Hall data.
- Full Text:
- Date Issued: 2008
- Authors: Botha, Lindsay
- Date: 2008
- Subjects: Gallium arsenide semiconductors , Indium alloys , Compound semiconductors , Organometallic compounds , Infrared detectors , Infrared technology , Superlattices as materials
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10526 , http://hdl.handle.net/10948/713 , Gallium arsenide semiconductors , Indium alloys , Compound semiconductors , Organometallic compounds , Infrared detectors , Infrared technology , Superlattices as materials
- Description: This study focuses on the development of InAs/GaInSb strained-layer superlattice structures by metal organic chemical vapour deposition (MOCVD), and deals with two aspects of the development of InAs/GaInSb SLS’s by MOCVD viz. the deposition of nano-scale (~100 Å) GaInSb layers, and the electrical characterization of unstrained InAs. The first part of this work aims to study the MOCVD growth of GaInSb layers in terms of deposition rate and indium incorporation on the nano-scale. This task is approached by first optimizing the growth of relatively thick (~2 μm) epitaxial films, and then assuming similar growth parameters during nano-scale deposition. The GaInSb layers were grown as part of GaInSb/GaSb quantum well (QW) structures. By using this approach, the GaInSb QW’s (~100 Å) could be characterized with the use of photoluminescence spectroscopy, which, when used in conjunction with transmission electron microscopy and/or X-ray diffractomery, proves useful in the analysis of such small scale deposition. It is shown that the growth rate of GaInSb on the nano-scale approaches the nominal growth rates determined from thick (~2 μm) GaInSb calibration layers. The In incorporation efficiency in nano-layers, however, was markedly lower than what was predicted by the GaInSb calibration layers. This reduction in indium incorporation could be the result of the effects of strain on In incorporation. The choice of substrate orientation for QW deposition was also studied. QW structures were grown simultaneously on both (100) and 2°off (100) GaSb(Te) substrates, and it is shown that growth on non-vicinal substrates is more conducive to the deposition of high quality QW structures. The second part of this study focuses on the electrical characterization of unstrained InAs. It is long known that conventional Hall measurements cannot be used to accurately characterize InAs epitaxial layers, as a result of parallel conduction resulting from surface and/or interface effects. This study looks at extracting the surface and bulk electrical properties of n-type InAs thin films directly from variable magnetic field Hall measurements. For p-type InAs, the situation is complicated by the relatively large electron to hole mobility ratio of InAs which tends to conceal the p-type nature of InAs thin films from Hall measurements. Here, this effect is illustrated by way of theoretical simulation of Hall data.
- Full Text:
- Date Issued: 2008
Experiences and coping resources of the suicide negotiation staff at the Van Staden's Bridge
- Authors: Botha, Miranda
- Date: 2008
- Subjects: Adjustment (Psychology) , Negotiation , Suicide -- Prevention
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9926 , http://hdl.handle.net/10948/656 , Adjustment (Psychology) , Negotiation , Suicide -- Prevention
- Description: The Van Staden’s Bridge has claimed 67 lives since its construction on 11 November 1971. A team of police officials, trained as negotiators who deal with suicide and hostage negotiation, are involved with the task of convincing suicidal persons who turn to the bridge to take their own lives, not to resort to suicide. They are responsible for persuading at least three people per week to reconisider suicide at this notorious bridge. The goal of this study was to explore and describe the experiences and coping resources of the SAPS suicide negotiation staff at the Van Staden’s Bridge, Thornhill, Port Elizabeth. A mixed methods study combining both the quantitative and qualitative approaches was implemented. An exploratory-descriptive design was used, because the topic is still a relatively under-researched area in South Africa. Two data collection measures, that is, the Coping Resources Inventory (CRI) and semi-structured interviewing were employed. The researcher conducted a pilot study to enhance the trustworthiness of the study. Non-probability, purposive sampling was employed to obtain research participants from the research population (suicide negotiation team), consisting of 12 members. Eight members participated voluntary in the quantitative data collection and of these a total of five participated in the qualitative research interviews. Six themes emerged from the results of the in-depth, semi-structured interviews: (1) experiences of SAPS suicide negotiators, (2) aspects that hinder the negotiation process, (3) characteristics of a negotiator, (4) important aspects of the negotiation process, (5) coping mechanisms of SAPS negotiators and (6) recommendations for rendering support to SAPS negotiators. The results from the CRI suggested that the participants have average coping resources with the cognitive domain being the lowest and both the social and physical domains being the highest. The limitations and the value of the study were outlined and finally, recommendations for future research were made.
- Full Text:
- Date Issued: 2008
- Authors: Botha, Miranda
- Date: 2008
- Subjects: Adjustment (Psychology) , Negotiation , Suicide -- Prevention
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9926 , http://hdl.handle.net/10948/656 , Adjustment (Psychology) , Negotiation , Suicide -- Prevention
- Description: The Van Staden’s Bridge has claimed 67 lives since its construction on 11 November 1971. A team of police officials, trained as negotiators who deal with suicide and hostage negotiation, are involved with the task of convincing suicidal persons who turn to the bridge to take their own lives, not to resort to suicide. They are responsible for persuading at least three people per week to reconisider suicide at this notorious bridge. The goal of this study was to explore and describe the experiences and coping resources of the SAPS suicide negotiation staff at the Van Staden’s Bridge, Thornhill, Port Elizabeth. A mixed methods study combining both the quantitative and qualitative approaches was implemented. An exploratory-descriptive design was used, because the topic is still a relatively under-researched area in South Africa. Two data collection measures, that is, the Coping Resources Inventory (CRI) and semi-structured interviewing were employed. The researcher conducted a pilot study to enhance the trustworthiness of the study. Non-probability, purposive sampling was employed to obtain research participants from the research population (suicide negotiation team), consisting of 12 members. Eight members participated voluntary in the quantitative data collection and of these a total of five participated in the qualitative research interviews. Six themes emerged from the results of the in-depth, semi-structured interviews: (1) experiences of SAPS suicide negotiators, (2) aspects that hinder the negotiation process, (3) characteristics of a negotiator, (4) important aspects of the negotiation process, (5) coping mechanisms of SAPS negotiators and (6) recommendations for rendering support to SAPS negotiators. The results from the CRI suggested that the participants have average coping resources with the cognitive domain being the lowest and both the social and physical domains being the highest. The limitations and the value of the study were outlined and finally, recommendations for future research were made.
- Full Text:
- Date Issued: 2008
The Southern African Development Community's attraction to foreign direct investment
- Authors: Botha, Richard Kruger
- Date: 2008
- Subjects: Southern African Development Community , Africa, Southern -- Foreign economic relations , Africa, Southern -- Economic integration , Africa, Southern -- Economic conditions
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8716 , http://hdl.handle.net/10948/926 , Southern African Development Community , Africa, Southern -- Foreign economic relations , Africa, Southern -- Economic integration , Africa, Southern -- Economic conditions
- Description: In order to assess the question as to whether the Southern African Development Community in principle attracts foreign direct investment, literature and data have been cited that compared the economic profiles and relative privatisation programs of member states of the Southern African Development Community with relative high inflows of foreign direct investment with the economic profiles and relative privatisation programs of member states with relative low inflows of foreign direct investment. Qualitative research has been conducted, and the author is of opinion that generally the member states with relative high foreign direct investment inflows had economic profiles and relative privatisation programs that encouraged foreign direct investment, and member states with relative low foreign direct investment inflows had economic profiles and relative privatisation programs that deterred foreign direct investment inflows. From the above the author has inferred that the Southern African Development Community in principle attracted foreign direct investment, but not to its full potential. The reason may be that although the member states’ economic profiles are favourable for foreign direct investment, their economic growths tend to fluctuate, and the future economic profiles are therefore unpredictable. With the above in mind this mini-treatise aims to address the question as to what steps the governments of the Southern African Development Community’s member states could follow in order to attract foreign direct investment. iii The author is of opinion that the member states should endeavour to maintain an annual average economic growth rate, and that the governments continue to engage into privatisation programs in order to encourage foreign direct investment.
- Full Text:
- Date Issued: 2008
- Authors: Botha, Richard Kruger
- Date: 2008
- Subjects: Southern African Development Community , Africa, Southern -- Foreign economic relations , Africa, Southern -- Economic integration , Africa, Southern -- Economic conditions
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8716 , http://hdl.handle.net/10948/926 , Southern African Development Community , Africa, Southern -- Foreign economic relations , Africa, Southern -- Economic integration , Africa, Southern -- Economic conditions
- Description: In order to assess the question as to whether the Southern African Development Community in principle attracts foreign direct investment, literature and data have been cited that compared the economic profiles and relative privatisation programs of member states of the Southern African Development Community with relative high inflows of foreign direct investment with the economic profiles and relative privatisation programs of member states with relative low inflows of foreign direct investment. Qualitative research has been conducted, and the author is of opinion that generally the member states with relative high foreign direct investment inflows had economic profiles and relative privatisation programs that encouraged foreign direct investment, and member states with relative low foreign direct investment inflows had economic profiles and relative privatisation programs that deterred foreign direct investment inflows. From the above the author has inferred that the Southern African Development Community in principle attracted foreign direct investment, but not to its full potential. The reason may be that although the member states’ economic profiles are favourable for foreign direct investment, their economic growths tend to fluctuate, and the future economic profiles are therefore unpredictable. With the above in mind this mini-treatise aims to address the question as to what steps the governments of the Southern African Development Community’s member states could follow in order to attract foreign direct investment. iii The author is of opinion that the member states should endeavour to maintain an annual average economic growth rate, and that the governments continue to engage into privatisation programs in order to encourage foreign direct investment.
- Full Text:
- Date Issued: 2008
Novel aspects of platinum-amine coordination compounds: their chemistry and anticancer application
- Authors: Bouwer, Yolanda
- Date: 2008
- Subjects: Coordination compounds , Platinum compounds , Antineoplastic agents
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10444 , http://hdl.handle.net/10948/d1021052
- Description: The aim in this thesis, was to synthesize novel platinum coordination compounds, in order to develop compounds with improved anticancer action which could lead to an improved understanding of the mechanism by which they operate and at the same time, improve synthetic methods for their products. The initial work included the development of a novel synthetic method for 1R,2R-diaminocyclohexaneoxalato-platinum(II) (oxaliplatin), by using an essentially non-aqueous solvent medium and direct ligand exchange at elevated temperatures. This was done by a study of the kinetics of the reaction in a variety of conditions; such as relative reagent concentrations and ratios as well as solvent mixtures. An effective method was developed which could be applied industrially. An international patent was taken out on this method. Various amine complexes of platinum(II) were synthesized using chloro, bromo and oxalato groups as leaving groups. The non-leaving groups were selected having certain specific characteristics in mind. Novel mononitroplatinum(IV) complexes were synthesized, mostly with oxalato leaving groups. One of these in particular, had excellent anticancer behaviour. Another trichloromononitro complex was also synthesized with very good anticancer properties. Two international patents were filed for the latter two compounds. As far as possible, all compounds were studied by spectrometric, chromatographic and thermal methods. They were also tested against 3 cancer cell lines namely cervical (Hela), Colon (HT29) and Breast (MCF7) cancer cells.
- Full Text:
- Date Issued: 2008
- Authors: Bouwer, Yolanda
- Date: 2008
- Subjects: Coordination compounds , Platinum compounds , Antineoplastic agents
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10444 , http://hdl.handle.net/10948/d1021052
- Description: The aim in this thesis, was to synthesize novel platinum coordination compounds, in order to develop compounds with improved anticancer action which could lead to an improved understanding of the mechanism by which they operate and at the same time, improve synthetic methods for their products. The initial work included the development of a novel synthetic method for 1R,2R-diaminocyclohexaneoxalato-platinum(II) (oxaliplatin), by using an essentially non-aqueous solvent medium and direct ligand exchange at elevated temperatures. This was done by a study of the kinetics of the reaction in a variety of conditions; such as relative reagent concentrations and ratios as well as solvent mixtures. An effective method was developed which could be applied industrially. An international patent was taken out on this method. Various amine complexes of platinum(II) were synthesized using chloro, bromo and oxalato groups as leaving groups. The non-leaving groups were selected having certain specific characteristics in mind. Novel mononitroplatinum(IV) complexes were synthesized, mostly with oxalato leaving groups. One of these in particular, had excellent anticancer behaviour. Another trichloromononitro complex was also synthesized with very good anticancer properties. Two international patents were filed for the latter two compounds. As far as possible, all compounds were studied by spectrometric, chromatographic and thermal methods. They were also tested against 3 cancer cell lines namely cervical (Hela), Colon (HT29) and Breast (MCF7) cancer cells.
- Full Text:
- Date Issued: 2008
The tuba in solo and ensemble repertory : a critical perspective
- Authors: Bower, Danel
- Date: 2008
- Subjects: Tuba -- Performance , Tuba -- History and criticism
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: vital:8515 , http://hdl.handle.net/10948/759 , http://hdl.handle.net/10948/d1012064 , Tuba -- Performance , Tuba -- History and criticism
- Description: The topic of this research is to explore various aspects pertaining to the tuba and its role in music. The role of the tuba in modern performance practice is greatly dependent on the history of the tuba and the different roles that were fulfilled in the various eras. The study begins with an investigation into the most important predecessors of the tuba – the most prominent thereof being the ophicleide. The next field of study includes the role of the tuba in orchestras in different countries as well as the role that the tuba fulfills in various ensembles. There is a wide variety of brass instruments that were manufactured in the past and are still being produced today. Various improvements and adaptations of the tuba are listed and studied. Next the tuba is considered in its capacity as a solo instrument and the fact that the tuba can exist as a solo instrument is motivated. Even though it might not be evident that there are a large number of composers for this instrument, some of the most respected and influential composers of tuba music of all time are sighted in this study. Several famous and celebrated tuba players are mentioned and their accomplishments listed. Finally the three practical music examination institutions in South Africa are studied. Lists are compiled to assess the quality of the different examination options between these institutions and provide a suggestion of a preferred option.
- Full Text:
- Date Issued: 2008
- Authors: Bower, Danel
- Date: 2008
- Subjects: Tuba -- Performance , Tuba -- History and criticism
- Language: English
- Type: Thesis , Masters , MMus
- Identifier: vital:8515 , http://hdl.handle.net/10948/759 , http://hdl.handle.net/10948/d1012064 , Tuba -- Performance , Tuba -- History and criticism
- Description: The topic of this research is to explore various aspects pertaining to the tuba and its role in music. The role of the tuba in modern performance practice is greatly dependent on the history of the tuba and the different roles that were fulfilled in the various eras. The study begins with an investigation into the most important predecessors of the tuba – the most prominent thereof being the ophicleide. The next field of study includes the role of the tuba in orchestras in different countries as well as the role that the tuba fulfills in various ensembles. There is a wide variety of brass instruments that were manufactured in the past and are still being produced today. Various improvements and adaptations of the tuba are listed and studied. Next the tuba is considered in its capacity as a solo instrument and the fact that the tuba can exist as a solo instrument is motivated. Even though it might not be evident that there are a large number of composers for this instrument, some of the most respected and influential composers of tuba music of all time are sighted in this study. Several famous and celebrated tuba players are mentioned and their accomplishments listed. Finally the three practical music examination institutions in South Africa are studied. Lists are compiled to assess the quality of the different examination options between these institutions and provide a suggestion of a preferred option.
- Full Text:
- Date Issued: 2008
A historic-hermeneutic critique of luthiery with specific reference to selected South African guiter builders
- Authors: Bower, Rudi
- Date: 2008
- Subjects: Guitar -- Construction , Guitar -- History
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8512 , http://hdl.handle.net/10948/779 , Guitar -- Construction , Guitar -- History
- Description: This study uses a general historical overview of luthiery that provides the reader with a basic understanding of construction techniques and terminology as a point of departure. From the outset the lack of consensus over an ideal or desired construction technique is highlighted. However, Torres is credited with the establishing of a perceived Spanish tradition of guitar construction and acknowledged as the “father” of the modern guitar. This will serve as a basic framework in which a discussion of six prominent past and present international luthiers can occur. These luthiers, namely Antonio de Torres, Hermann Hauser, Robert Bouchet, Daniel Friederich, Jose Romanillos and Greg Smallman are included in this study by virtue of their influence on the South African luthiers that are featured here. It is noted that these six luthiers, with the exception of Greg Smallman, all adhere to the “Spanish tradition” of guitar construction. Smallman can be considered a foremost proponent of a more recent “modern” school of guitar construction characterized by various innovative construction techniques. These are a result of new demands placed on the guitar as performance instrument because of larger concert venues and more collaboration with different instruments, resulting in a need for a stronger tone and more projection and penetration in sound. These two “poles” of luthiery are then manifested in the discussion on the seven featured South African luthiers. Alistair Thompson, Colin Cleveland, Mervyn Davis, Garth Pickard, Marc Maingard, Rodney Stedall and Hans van den Berg are discussed with special mention made of the features of their instruments, woods used and thoughts on luthiery, against the backdrop of their biographies. The four South African luthiers who build within the “Spanish tradition” (Pickard, Maingard, Stedall and Van den Berg) are distinguished from the three who build outside this so-called tradition (Thompson, Cleveland, Davis). South African luthiery is therefore shown to be an accurate microcosm of luthiery in global terms with styles of construction ranging from very “traditional” to very “modern”. The critical reflection on the information contained in this study appears in the form of a hermeneutic critique on luthiery that occurs within the parameters of the thought of two prominent hermeneutic thinkers, Martin Heidegger and his student, Hans-Georg Gadamer. It is shown that the collaboration that often occurs between guitar makers and performers can be related back to Gadamer and his analysis of Heidegger’s notion of the the hermeneutic circle. It is also argued that luthiery as practiced by the international and South African luthiers featured in this study can be seen both as art and technology in ancient Greek terms in that they are both a mode of revealing. Finally, it is shown how luthiery in its entirety can be viewed as a tradition and that different luthiers respond and add to this tradition in various ways.
- Full Text:
- Date Issued: 2008
- Authors: Bower, Rudi
- Date: 2008
- Subjects: Guitar -- Construction , Guitar -- History
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8512 , http://hdl.handle.net/10948/779 , Guitar -- Construction , Guitar -- History
- Description: This study uses a general historical overview of luthiery that provides the reader with a basic understanding of construction techniques and terminology as a point of departure. From the outset the lack of consensus over an ideal or desired construction technique is highlighted. However, Torres is credited with the establishing of a perceived Spanish tradition of guitar construction and acknowledged as the “father” of the modern guitar. This will serve as a basic framework in which a discussion of six prominent past and present international luthiers can occur. These luthiers, namely Antonio de Torres, Hermann Hauser, Robert Bouchet, Daniel Friederich, Jose Romanillos and Greg Smallman are included in this study by virtue of their influence on the South African luthiers that are featured here. It is noted that these six luthiers, with the exception of Greg Smallman, all adhere to the “Spanish tradition” of guitar construction. Smallman can be considered a foremost proponent of a more recent “modern” school of guitar construction characterized by various innovative construction techniques. These are a result of new demands placed on the guitar as performance instrument because of larger concert venues and more collaboration with different instruments, resulting in a need for a stronger tone and more projection and penetration in sound. These two “poles” of luthiery are then manifested in the discussion on the seven featured South African luthiers. Alistair Thompson, Colin Cleveland, Mervyn Davis, Garth Pickard, Marc Maingard, Rodney Stedall and Hans van den Berg are discussed with special mention made of the features of their instruments, woods used and thoughts on luthiery, against the backdrop of their biographies. The four South African luthiers who build within the “Spanish tradition” (Pickard, Maingard, Stedall and Van den Berg) are distinguished from the three who build outside this so-called tradition (Thompson, Cleveland, Davis). South African luthiery is therefore shown to be an accurate microcosm of luthiery in global terms with styles of construction ranging from very “traditional” to very “modern”. The critical reflection on the information contained in this study appears in the form of a hermeneutic critique on luthiery that occurs within the parameters of the thought of two prominent hermeneutic thinkers, Martin Heidegger and his student, Hans-Georg Gadamer. It is shown that the collaboration that often occurs between guitar makers and performers can be related back to Gadamer and his analysis of Heidegger’s notion of the the hermeneutic circle. It is also argued that luthiery as practiced by the international and South African luthiers featured in this study can be seen both as art and technology in ancient Greek terms in that they are both a mode of revealing. Finally, it is shown how luthiery in its entirety can be viewed as a tradition and that different luthiers respond and add to this tradition in various ways.
- Full Text:
- Date Issued: 2008
Business process security maturity: a paradigm convergence
- Authors: Box, Debra
- Date: 2008
- Subjects: Management information systems , Reengineering (Management) , Organizational change , Systems engineering , Information resources management
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9785 , http://hdl.handle.net/10948/722 , Management information systems , Reengineering (Management) , Organizational change , Systems engineering , Information resources management
- Description: Information technology developments in software and hardware have enabled radical changes in information systems, culminating in the paradigm Business Process Management. There has been a concomitant rise in the importance of information security and security engineering due to the increased reliance by society on information. Information is seen as a critical success factor which needs protection. Information security is the response to increased hazards created through recent innovations in Web technology and the advent of intra and inter enterprise-wide systems. Security engineering is based on a variety of codes of practice and security metrics which aim at ameliorating these increased security hazards. Its aim is to produce a balanced set of security needs which are integrated into the system activities to establish confidence in the effectiveness of the security counter-measures. It is generally accepted that security should be applied in an integrated approach, for example, in Information Systems development. This has proved to be a noble thought but is the exception to the rule. Security, historically, is generally applied as an after-thought in an Information Technology implementation. This motivated the concept of formulating a model of integrating security inherently within the paradigm of BPM. The overarching requirements of the model are to align the overall organisational security initiatives and ensure continuous improvement through constant evaluation and adaptation of the security processes. It is the intention of this research to show that these requirements are achievable through aligning the process management methodology of BPM, with the security paradigms of Information Security Management (using the ISO 17799 standard) and security engineering (using the Systems Security Engineering Capability Maturity Model – SSE-CMM). The aim of the Business Process Security Maturity model as the output of this research, is to link the SSE-CMM, as the security metric and appraisal method, to the ISO 17799 security standard, which provides the guidance for the information security management framework and security control selection, within the Business Process Management environment. The SSE-CMM, as the security version of the Capability Maturity Model, provides the necessary strategy to control the security engineering processes that support the information systems and it maintains that as processes mature they become more predictable, effective and manageable. The aim of the model is to provide an integrated, mature security strategy within the business process and monitor and correct the security posture of the implemented counter-measures.
- Full Text:
- Date Issued: 2008
- Authors: Box, Debra
- Date: 2008
- Subjects: Management information systems , Reengineering (Management) , Organizational change , Systems engineering , Information resources management
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9785 , http://hdl.handle.net/10948/722 , Management information systems , Reengineering (Management) , Organizational change , Systems engineering , Information resources management
- Description: Information technology developments in software and hardware have enabled radical changes in information systems, culminating in the paradigm Business Process Management. There has been a concomitant rise in the importance of information security and security engineering due to the increased reliance by society on information. Information is seen as a critical success factor which needs protection. Information security is the response to increased hazards created through recent innovations in Web technology and the advent of intra and inter enterprise-wide systems. Security engineering is based on a variety of codes of practice and security metrics which aim at ameliorating these increased security hazards. Its aim is to produce a balanced set of security needs which are integrated into the system activities to establish confidence in the effectiveness of the security counter-measures. It is generally accepted that security should be applied in an integrated approach, for example, in Information Systems development. This has proved to be a noble thought but is the exception to the rule. Security, historically, is generally applied as an after-thought in an Information Technology implementation. This motivated the concept of formulating a model of integrating security inherently within the paradigm of BPM. The overarching requirements of the model are to align the overall organisational security initiatives and ensure continuous improvement through constant evaluation and adaptation of the security processes. It is the intention of this research to show that these requirements are achievable through aligning the process management methodology of BPM, with the security paradigms of Information Security Management (using the ISO 17799 standard) and security engineering (using the Systems Security Engineering Capability Maturity Model – SSE-CMM). The aim of the Business Process Security Maturity model as the output of this research, is to link the SSE-CMM, as the security metric and appraisal method, to the ISO 17799 security standard, which provides the guidance for the information security management framework and security control selection, within the Business Process Management environment. The SSE-CMM, as the security version of the Capability Maturity Model, provides the necessary strategy to control the security engineering processes that support the information systems and it maintains that as processes mature they become more predictable, effective and manageable. The aim of the model is to provide an integrated, mature security strategy within the business process and monitor and correct the security posture of the implemented counter-measures.
- Full Text:
- Date Issued: 2008