Nickel sulphide mineralization associated with Archean komatiites
- Authors: Lane, Monica Leonie
- Date: 1992
- Subjects: Nickel sulfide , Geology, Stratigraphic -- Archaean
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4982 , http://hdl.handle.net/10962/d1005594 , Nickel sulfide , Geology, Stratigraphic -- Archaean
- Description: The distribution of Archean Nickel sulphide deposits reflects tectonic controls operating during the evolution of the granitoid greenstone terrains. Important deposits of komatiitic-affinity are concentrated within, and adjacent to, younger (∼2.7 Ga), rift-related greenstone belts (e.g. Canada, Western Australia and Zimababwe). Two important classes of Archean Nickel sulphide deposits exist, formerly known as "Dunitic" and "Peridotitic", these are now referred to as Group I and Group II deposits, based on their characteristic structure and composition. Mineralization varies from massive and matrix to disseminated, and is nearly always concentrated at the base of the host unit. Primary ores have a relatively simple mineralogy, dominated by pyrrhotite-pentlandite-pyrite, and to a lesser degree millerite. Metamorphic grades tend to range from prehnite-pumpellyite facies through to lower and upper amphibolite facies. Genesis of Group I and II deposits is explained by the eruption of komatiites into rift-phase greenstone belts, as channelized flows, which assimilated variable amounts of footwall rocks during emplacement. Sulphide saturation was dependent on the mode of emplacement and, the amount of sulphidic sediments that became assimilated prior to crystallization. This possibly accounts for variations in ore tenor. The Six Mile Deposit (SMD) in Western Australia, is an adcumulate body of the Group IIB-type, exhibiting disseminated mineralization. The ore has been "upgraded" due to hydration and serpentinization. A profound weathering sequence exists, which was subsequently utilized during initial exploration. Exploration techniques has been focused on Western Australia, as it is here that the most innovative ideas have emerged.
- Full Text:
- Date Issued: 1992
- Authors: Lane, Monica Leonie
- Date: 1992
- Subjects: Nickel sulfide , Geology, Stratigraphic -- Archaean
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4982 , http://hdl.handle.net/10962/d1005594 , Nickel sulfide , Geology, Stratigraphic -- Archaean
- Description: The distribution of Archean Nickel sulphide deposits reflects tectonic controls operating during the evolution of the granitoid greenstone terrains. Important deposits of komatiitic-affinity are concentrated within, and adjacent to, younger (∼2.7 Ga), rift-related greenstone belts (e.g. Canada, Western Australia and Zimababwe). Two important classes of Archean Nickel sulphide deposits exist, formerly known as "Dunitic" and "Peridotitic", these are now referred to as Group I and Group II deposits, based on their characteristic structure and composition. Mineralization varies from massive and matrix to disseminated, and is nearly always concentrated at the base of the host unit. Primary ores have a relatively simple mineralogy, dominated by pyrrhotite-pentlandite-pyrite, and to a lesser degree millerite. Metamorphic grades tend to range from prehnite-pumpellyite facies through to lower and upper amphibolite facies. Genesis of Group I and II deposits is explained by the eruption of komatiites into rift-phase greenstone belts, as channelized flows, which assimilated variable amounts of footwall rocks during emplacement. Sulphide saturation was dependent on the mode of emplacement and, the amount of sulphidic sediments that became assimilated prior to crystallization. This possibly accounts for variations in ore tenor. The Six Mile Deposit (SMD) in Western Australia, is an adcumulate body of the Group IIB-type, exhibiting disseminated mineralization. The ore has been "upgraded" due to hydration and serpentinization. A profound weathering sequence exists, which was subsequently utilized during initial exploration. Exploration techniques has been focused on Western Australia, as it is here that the most innovative ideas have emerged.
- Full Text:
- Date Issued: 1992
The conservation status of subtropical transitional thicket, and regeneration through seeding of shrubs in the Xeric succulent thicket of the Eastern Cape
- Authors: La Cock, Graeme Dennis
- Date: 1992
- Subjects: Plant conservation -- South Africa -- Eastern Cape , Woody plants -- South Africa -- Eastern Cape , Shrubs -- South Africa -- Eastern Cape , Succulent plants -- South Africa -- Eastern Cape , Plant conservation -- South Africa -- Western Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4208 , http://hdl.handle.net/10962/d1003777 , Plant conservation -- South Africa -- Eastern Cape , Woody plants -- South Africa -- Eastern Cape , Shrubs -- South Africa -- Eastern Cape , Succulent plants -- South Africa -- Eastern Cape , Plant conservation -- South Africa -- Western Cape
- Description: The historically poorly conserved subtropical transitional thicket (STT) of the Eastern Cape is overutilised by domestic stock and game in the more xeric areas, and has shown no signs of recovery from this grazing pressure. It has been postulated that no regeneration through seeding occurs. This project was undertaken to determine: 1) how much STT has disappeared between 1950 and present, and what the current conservation status is; and 2) whether regeneration of the xeric succulent thicket is taking place through seeding, and if so, where. The study was conducted at the Andries Vosloo Kudu Reserve near Grahamstown. Approximately one-third less STT was mapped in this study, based on 1981 Landsat images, than was mapped in 1950. Approximately 10 % of all remaining STT is conserved. The order Kaffrarian thicket is poorly conserved. Newly germinated seedlings of a wide range of shrub species occurred under the canopies of a wide range of shrubs which served as nurse plants, throughout a gradient of veld condition. Seedlings of Portulacaria afra, the dominant shrub in xeric succulent thicket, were most common. Similarly all saplings recorded in a survey of saplings were associated with bushclumps. One-third of all saplings have the potential to contribute to the spread of bushclumps. Regeneration of xeric succulent thicket through seeding probably does occur, contrary to current ideas. Ptareoxylon obliquum was the most common sapling, despite mature trees now being scarce following earlier heavier utilisation . P. obliquum was also the nurse plant which supported the highest density of newly germinated seedlings. The possible role of P. obliquum in the functioning of xeric succulent thicket is discussed. The confinement of seedlings and saplings to areas under the canopies of trees and shrubs implies that the xeric succulent thicket will not recover rapidly if allowed to rest. Active management techniques will be necessary if rapid recovery is required. Bare areas between bushclumps may no longer be suitable germination habitats because of high Al concentrations. There was no evidence to support the idea that germination and establishment of shrubs in clear areas is linked to episodic climatic events. Dung middens of recently reintroduced black rhinoceros may however aid in germination of seeds and establishment of seedlings under certain climatic conditions. Recommendations for further studies, based on the findings of this project, are made. Possible management techniques aimed at the rapid recovery of this veld are suggested, and management proposals for the Sam Knott Nature Reserve/Andries Vosloo Kudu Reserve complex are made.
- Full Text:
- Date Issued: 1992
- Authors: La Cock, Graeme Dennis
- Date: 1992
- Subjects: Plant conservation -- South Africa -- Eastern Cape , Woody plants -- South Africa -- Eastern Cape , Shrubs -- South Africa -- Eastern Cape , Succulent plants -- South Africa -- Eastern Cape , Plant conservation -- South Africa -- Western Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4208 , http://hdl.handle.net/10962/d1003777 , Plant conservation -- South Africa -- Eastern Cape , Woody plants -- South Africa -- Eastern Cape , Shrubs -- South Africa -- Eastern Cape , Succulent plants -- South Africa -- Eastern Cape , Plant conservation -- South Africa -- Western Cape
- Description: The historically poorly conserved subtropical transitional thicket (STT) of the Eastern Cape is overutilised by domestic stock and game in the more xeric areas, and has shown no signs of recovery from this grazing pressure. It has been postulated that no regeneration through seeding occurs. This project was undertaken to determine: 1) how much STT has disappeared between 1950 and present, and what the current conservation status is; and 2) whether regeneration of the xeric succulent thicket is taking place through seeding, and if so, where. The study was conducted at the Andries Vosloo Kudu Reserve near Grahamstown. Approximately one-third less STT was mapped in this study, based on 1981 Landsat images, than was mapped in 1950. Approximately 10 % of all remaining STT is conserved. The order Kaffrarian thicket is poorly conserved. Newly germinated seedlings of a wide range of shrub species occurred under the canopies of a wide range of shrubs which served as nurse plants, throughout a gradient of veld condition. Seedlings of Portulacaria afra, the dominant shrub in xeric succulent thicket, were most common. Similarly all saplings recorded in a survey of saplings were associated with bushclumps. One-third of all saplings have the potential to contribute to the spread of bushclumps. Regeneration of xeric succulent thicket through seeding probably does occur, contrary to current ideas. Ptareoxylon obliquum was the most common sapling, despite mature trees now being scarce following earlier heavier utilisation . P. obliquum was also the nurse plant which supported the highest density of newly germinated seedlings. The possible role of P. obliquum in the functioning of xeric succulent thicket is discussed. The confinement of seedlings and saplings to areas under the canopies of trees and shrubs implies that the xeric succulent thicket will not recover rapidly if allowed to rest. Active management techniques will be necessary if rapid recovery is required. Bare areas between bushclumps may no longer be suitable germination habitats because of high Al concentrations. There was no evidence to support the idea that germination and establishment of shrubs in clear areas is linked to episodic climatic events. Dung middens of recently reintroduced black rhinoceros may however aid in germination of seeds and establishment of seedlings under certain climatic conditions. Recommendations for further studies, based on the findings of this project, are made. Possible management techniques aimed at the rapid recovery of this veld are suggested, and management proposals for the Sam Knott Nature Reserve/Andries Vosloo Kudu Reserve complex are made.
- Full Text:
- Date Issued: 1992
The influence of children on decision-makers in their homes : a case study in environmental education
- Authors: Kruger, Jacqueline
- Date: 1992
- Subjects: Environmental education -- South Africa , Parent and child -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1574 , http://hdl.handle.net/10962/d1003456
- Description: This study explores the possible influence of twenty children on their 'parents', with a view to better understanding the potential 'multiplier effect' of children regarding environmental responsibility. The criteria employed to study the potential influence included certain of the environmental activities learnt by the children during an Environmental Education programme. The programme was undertaken by the researcher with a Std 4 class from Ryneveld Primêreskool in Graaff-Reinet. An action research approach was adopted and results were analysed qualitatively. Due to the short duration and exploratory nature of the project, these results should be viewed as tentative. Proposals are made for increasing the impact of Environmental Education programmes in peri-urban township communities, and recommendations are put forward to help facilitate related studies in the future.
- Full Text:
- Date Issued: 1992
- Authors: Kruger, Jacqueline
- Date: 1992
- Subjects: Environmental education -- South Africa , Parent and child -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1574 , http://hdl.handle.net/10962/d1003456
- Description: This study explores the possible influence of twenty children on their 'parents', with a view to better understanding the potential 'multiplier effect' of children regarding environmental responsibility. The criteria employed to study the potential influence included certain of the environmental activities learnt by the children during an Environmental Education programme. The programme was undertaken by the researcher with a Std 4 class from Ryneveld Primêreskool in Graaff-Reinet. An action research approach was adopted and results were analysed qualitatively. Due to the short duration and exploratory nature of the project, these results should be viewed as tentative. Proposals are made for increasing the impact of Environmental Education programmes in peri-urban township communities, and recommendations are put forward to help facilitate related studies in the future.
- Full Text:
- Date Issued: 1992
The development and evaluation of an andragogic training programme for Ciskeian retailers
- Authors: Kotzé, Clifford Jennings
- Date: 1992
- Subjects: Small business -- South Africa -- Ciskei Retail trade -- South Africa -- Ciskei
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1184 , http://hdl.handle.net/10962/d1002801
- Description: One of the greatest challenges facing South Africa and the "independent states" of Transkei, Bophuthatswana, Venda and Ciskei over the next decade will be job creation and the development of the skills of the people. This is particularly true of Ciskei with its rapid population growth, unemployment, shortage of skilled manpower and over abundance of unskilled labour. Small business and, in particular, retailing with its relatively low entry requirements, can play a significant role in the creation of jobs. Small business, and small business retailing in particular, suffers, however, from a high failure rate resulting in a waste of financial and human resources which a developing nation like Ciskei can ill afford. The training of people involved in small business retailing is, therefore, of great importance. There is no unanimity of opinion, however, as to what training models or approaches are most appropriate. The purpose of this study was, thus, to design a training model, develop an andragogic training programme for Ciskeian small retailers based upon the model and test it. In accordance with the model developed, the nature of the retailers performance problem was established, the job of the small retailer was analysed, the training needs of retailers were identified, performance standards were set, the course curriculum was developed, training strategies and styles were selected, the necessary training resources were obtained and the training programme was implemented. A pilot training programme was run in 1987 and then the amended programme was run for two years. The results of the training were measured in terms of: -the delegates reaction to the training programme -what the delegates learnt -changes in the business as perceived by regular customers -reaction of the delegates to the training programme one year later -case studies and survival rates Statistically significant positive results were obtained in all aspects evaluated. It can, therefore, be concluded that the andragogic training model for Ciskeian retailers resulted in a positive reaction of delegates to the training, an improvement in the retailer's knowledge of retailing, positive changes in the businesses as perceived by regular customer and improved survival rates of these small retail businesses.
- Full Text:
- Date Issued: 1992
- Authors: Kotzé, Clifford Jennings
- Date: 1992
- Subjects: Small business -- South Africa -- Ciskei Retail trade -- South Africa -- Ciskei
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:1184 , http://hdl.handle.net/10962/d1002801
- Description: One of the greatest challenges facing South Africa and the "independent states" of Transkei, Bophuthatswana, Venda and Ciskei over the next decade will be job creation and the development of the skills of the people. This is particularly true of Ciskei with its rapid population growth, unemployment, shortage of skilled manpower and over abundance of unskilled labour. Small business and, in particular, retailing with its relatively low entry requirements, can play a significant role in the creation of jobs. Small business, and small business retailing in particular, suffers, however, from a high failure rate resulting in a waste of financial and human resources which a developing nation like Ciskei can ill afford. The training of people involved in small business retailing is, therefore, of great importance. There is no unanimity of opinion, however, as to what training models or approaches are most appropriate. The purpose of this study was, thus, to design a training model, develop an andragogic training programme for Ciskeian small retailers based upon the model and test it. In accordance with the model developed, the nature of the retailers performance problem was established, the job of the small retailer was analysed, the training needs of retailers were identified, performance standards were set, the course curriculum was developed, training strategies and styles were selected, the necessary training resources were obtained and the training programme was implemented. A pilot training programme was run in 1987 and then the amended programme was run for two years. The results of the training were measured in terms of: -the delegates reaction to the training programme -what the delegates learnt -changes in the business as perceived by regular customers -reaction of the delegates to the training programme one year later -case studies and survival rates Statistically significant positive results were obtained in all aspects evaluated. It can, therefore, be concluded that the andragogic training model for Ciskeian retailers resulted in a positive reaction of delegates to the training, an improvement in the retailer's knowledge of retailing, positive changes in the businesses as perceived by regular customer and improved survival rates of these small retail businesses.
- Full Text:
- Date Issued: 1992
An exploratory field study into schoolgirl pregnancies, with emphasis on the role the school can play in their prevention
- Authors: Kooverjee, Ishwar
- Date: 1992
- Subjects: Teenage pregnancy -- South Africa Sex instruction -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1537 , http://hdl.handle.net/10962/d1003419
- Description: This piece of research explores the problem of schoolgirl pregnancies and suggests a role which the school might play in their prevention. Concern over the growing number of unplanned pregnancies under the age of eighteen years at the author's school, culminated in the .present study. Experts on the subject often perceive the problem to be self-defeating to the young girls, medically contra-indicated and socially disruptive. The purpose of this investigation was to determine attitudes towards the description of the problem, to identify causative factors predisposing to pregnancy, and to obtain views on how the school can reconcile efforts to address the problem. The relevant research data was obtained through a comprehensive 64 item attitudinal and knowledge-base questionnaire which was administered to a sample of 187 subjects. The sample comprised seven different occupational groups namely, senior schoolgirls, parents of senior schoolgirls, ex-schoolgirl primigravidae, parents of ex-schoolgirl primigravidae, school teachers, members of the clergy and various health care professionals. The appendices contain full statistical tables as well as full responses to the open-ended essay based on the research questionnaire so that the reader is free to check the reasonableness of the conclusions drawn. In the final chapter the author provides a brief summary of findings, offers justification why the teaching of sex education should be a priority in public schools, and makes recommendations, in the main, for the inclusion of school-based sex education as a component of Guidance in terms of rationale and implementation. In addition, suggestions are made with regard to school policy formulation and networking with parents and other community resources. Finally, a choice of four current model programmes for sex education are proposed in an effort to improve and build upon existing programmes in the present South African curriculum. It is the author's belief that this investigation may contribute to course design and perhaps provide hypotheses for more specific studies in the future.
- Full Text:
- Date Issued: 1992
- Authors: Kooverjee, Ishwar
- Date: 1992
- Subjects: Teenage pregnancy -- South Africa Sex instruction -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1537 , http://hdl.handle.net/10962/d1003419
- Description: This piece of research explores the problem of schoolgirl pregnancies and suggests a role which the school might play in their prevention. Concern over the growing number of unplanned pregnancies under the age of eighteen years at the author's school, culminated in the .present study. Experts on the subject often perceive the problem to be self-defeating to the young girls, medically contra-indicated and socially disruptive. The purpose of this investigation was to determine attitudes towards the description of the problem, to identify causative factors predisposing to pregnancy, and to obtain views on how the school can reconcile efforts to address the problem. The relevant research data was obtained through a comprehensive 64 item attitudinal and knowledge-base questionnaire which was administered to a sample of 187 subjects. The sample comprised seven different occupational groups namely, senior schoolgirls, parents of senior schoolgirls, ex-schoolgirl primigravidae, parents of ex-schoolgirl primigravidae, school teachers, members of the clergy and various health care professionals. The appendices contain full statistical tables as well as full responses to the open-ended essay based on the research questionnaire so that the reader is free to check the reasonableness of the conclusions drawn. In the final chapter the author provides a brief summary of findings, offers justification why the teaching of sex education should be a priority in public schools, and makes recommendations, in the main, for the inclusion of school-based sex education as a component of Guidance in terms of rationale and implementation. In addition, suggestions are made with regard to school policy formulation and networking with parents and other community resources. Finally, a choice of four current model programmes for sex education are proposed in an effort to improve and build upon existing programmes in the present South African curriculum. It is the author's belief that this investigation may contribute to course design and perhaps provide hypotheses for more specific studies in the future.
- Full Text:
- Date Issued: 1992
Understanding and treating combat-related post traumatic stress disorder: a soldier's story
- Authors: Koen, Gary
- Date: 1992
- Subjects: Post-traumatic stress disorder -- Case studies , Post-traumatic stress disorder -- Treatment , Soldiers -- Mental health -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3134 , http://hdl.handle.net/10962/d1006879 , Post-traumatic stress disorder -- Case studies , Post-traumatic stress disorder -- Treatment , Soldiers -- Mental health -- South Africa
- Description: This work documents the treatment of a 20-year-old male suffering from Post Traumatic Stress Disorder as a result of his experience during two years of national service as an Operations "Ops" Medic in the South African Defence Force. The literature review is drawn largely from the body of work emerging from the Vietnam War, and in particular the work of Robert Lifton and Erwin Parson is considered. The case study consists of a detailed synopsis of the treatment based upon material from the therapy sessions. This section hopes to accurately convey the experience of working with someone suffering from Post Traumatic Stress Disorder and provide insight into the dynamics of such a therapeutic relationship. Finally the discussion examines the links between the theory and the treatment and attempts to understand the various factors which shaped and influenced the final outcome of the therapy. Special consideration is given to showing how essentially cognitive restructuring techniques are successfully utilised within a more existential, psychodynamic framework. Furthermore, there is a paucity of literature on the subject of combat-related Post Traumatic Stress Disorder in South Africa and it is hoped that this work will both point to a need for further research in this field whilst simultaneously provide guidance for those who wish to become involved in working with individuals suffering from Post Traumatic Stress Disorder.
- Full Text:
- Date Issued: 1992
- Authors: Koen, Gary
- Date: 1992
- Subjects: Post-traumatic stress disorder -- Case studies , Post-traumatic stress disorder -- Treatment , Soldiers -- Mental health -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3134 , http://hdl.handle.net/10962/d1006879 , Post-traumatic stress disorder -- Case studies , Post-traumatic stress disorder -- Treatment , Soldiers -- Mental health -- South Africa
- Description: This work documents the treatment of a 20-year-old male suffering from Post Traumatic Stress Disorder as a result of his experience during two years of national service as an Operations "Ops" Medic in the South African Defence Force. The literature review is drawn largely from the body of work emerging from the Vietnam War, and in particular the work of Robert Lifton and Erwin Parson is considered. The case study consists of a detailed synopsis of the treatment based upon material from the therapy sessions. This section hopes to accurately convey the experience of working with someone suffering from Post Traumatic Stress Disorder and provide insight into the dynamics of such a therapeutic relationship. Finally the discussion examines the links between the theory and the treatment and attempts to understand the various factors which shaped and influenced the final outcome of the therapy. Special consideration is given to showing how essentially cognitive restructuring techniques are successfully utilised within a more existential, psychodynamic framework. Furthermore, there is a paucity of literature on the subject of combat-related Post Traumatic Stress Disorder in South Africa and it is hoped that this work will both point to a need for further research in this field whilst simultaneously provide guidance for those who wish to become involved in working with individuals suffering from Post Traumatic Stress Disorder.
- Full Text:
- Date Issued: 1992
A strategy for promoting computer literacy in staff and students of a teacher training institution : a case study
- Authors: Keep, Joan Diane
- Date: 1992
- Subjects: Computer literacy Computer-assisted instruction Teachers -- Training of -- Data processing
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1773 , http://hdl.handle.net/10962/d1003658
- Description: A case study carried out at Edgewood College of Education (Natal) attempted to demonstrate how in-house training could provide staff with the necessary computer literacy skills to integrate computer technology into lecturing and teaching programmes. The duration of the project was six months and during this time a group of thirty academic staff members were exposed to computer technology via practical experience, lectures and demonstrations. The results gleaned from the project show that most of the staff involved in the project developed sufficient computer skills to be of benefit in their professional and personal tasks. In addition the recognition of the value of word processing and desk top publishing led to the staff encouraging students to use these software packages in the preparation of coursework. Consequently the use of the computer resources increased noticeably in the six month period. One of the goals of the study was to show how staff, once computer literate, would make use of generic software to integrate computer technology into their lecturing programmes. This did not happen and the reasons for this failure are discussed.
- Full Text:
- Date Issued: 1992
- Authors: Keep, Joan Diane
- Date: 1992
- Subjects: Computer literacy Computer-assisted instruction Teachers -- Training of -- Data processing
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1773 , http://hdl.handle.net/10962/d1003658
- Description: A case study carried out at Edgewood College of Education (Natal) attempted to demonstrate how in-house training could provide staff with the necessary computer literacy skills to integrate computer technology into lecturing and teaching programmes. The duration of the project was six months and during this time a group of thirty academic staff members were exposed to computer technology via practical experience, lectures and demonstrations. The results gleaned from the project show that most of the staff involved in the project developed sufficient computer skills to be of benefit in their professional and personal tasks. In addition the recognition of the value of word processing and desk top publishing led to the staff encouraging students to use these software packages in the preparation of coursework. Consequently the use of the computer resources increased noticeably in the six month period. One of the goals of the study was to show how staff, once computer literate, would make use of generic software to integrate computer technology into their lecturing programmes. This did not happen and the reasons for this failure are discussed.
- Full Text:
- Date Issued: 1992
Small-scale gold mining in southern Africa
- Authors: Joubert, Barend Daniel
- Date: 1992
- Subjects: Gold mines and mining -- South Africa , Abandoned mines , Abandoned mines -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5002 , http://hdl.handle.net/10962/d1005615 , Gold mines and mining -- South Africa , Abandoned mines , Abandoned mines -- South Africa
- Description: The general characteristics of gold deposits are reviewed, and a classification of gold deposits based on mineability is proposed. Evaluation, mlnlng and beneficiation methods are briefly discussed. It is concluded that the most viable targets for small-scale companies comprise deposits that require the least pre-production time and expense. Great potential exists for the small-scale reclamation of gold from tailings dumps and abandoned mines in Southern Africa. There is also potential for developing new smallscale gold mines in the Archaean greenstone terranes of the Zimbabwean and Kaapvaal cratons.
- Full Text:
- Date Issued: 1992
- Authors: Joubert, Barend Daniel
- Date: 1992
- Subjects: Gold mines and mining -- South Africa , Abandoned mines , Abandoned mines -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5002 , http://hdl.handle.net/10962/d1005615 , Gold mines and mining -- South Africa , Abandoned mines , Abandoned mines -- South Africa
- Description: The general characteristics of gold deposits are reviewed, and a classification of gold deposits based on mineability is proposed. Evaluation, mlnlng and beneficiation methods are briefly discussed. It is concluded that the most viable targets for small-scale companies comprise deposits that require the least pre-production time and expense. Great potential exists for the small-scale reclamation of gold from tailings dumps and abandoned mines in Southern Africa. There is also potential for developing new smallscale gold mines in the Archaean greenstone terranes of the Zimbabwean and Kaapvaal cratons.
- Full Text:
- Date Issued: 1992
From FidoNet to internet: the evolution of a national network
- Jacot-Guillarmod, Francois F
- Authors: Jacot-Guillarmod, Francois F
- Date: 1992
- Language: English
- Type: Conference paper
- Identifier: vital:6974 , http://hdl.handle.net/10962/101
- Description: The South African academic research network, UNINET-ZA, evolved within two years from a FidoNet mail gateway that distributed email via interactive Kermit links, to a dialup uucp network, to wide area TCP/IP, and finally to full Internet connectivity. While the majority of UNINET-ZA sites are now TCP/IP connected, elements of the original gatewaying techniques are still fulfilling useful functions - for example a TCP/IP <=> FidoNet gateway, and links into non-Unix, non-TCP/IP based systems.
- Full Text:
- Date Issued: 1992
- Authors: Jacot-Guillarmod, Francois F
- Date: 1992
- Language: English
- Type: Conference paper
- Identifier: vital:6974 , http://hdl.handle.net/10962/101
- Description: The South African academic research network, UNINET-ZA, evolved within two years from a FidoNet mail gateway that distributed email via interactive Kermit links, to a dialup uucp network, to wide area TCP/IP, and finally to full Internet connectivity. While the majority of UNINET-ZA sites are now TCP/IP connected, elements of the original gatewaying techniques are still fulfilling useful functions - for example a TCP/IP <=> FidoNet gateway, and links into non-Unix, non-TCP/IP based systems.
- Full Text:
- Date Issued: 1992
A microstructural kinematic study of selected shear zones in the Hartbees River Thrust Belt, northeastern Namaqua Tectonic Province
- Authors: Jackson, Christopher
- Date: 1992
- Subjects: Metamorphic rocks -- South Africa -- Northern Cape , Mylonite -- South Africa -- Northern Cape , Geology -- South Africa -- Northern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4976 , http://hdl.handle.net/10962/d1005588 , Metamorphic rocks -- South Africa -- Northern Cape , Mylonite -- South Africa -- Northern Cape , Geology -- South Africa -- Northern Cape
- Description: The Hartbees River Thrust Belt (HRTS) is a 40-60 km wide, southwest-vergent zone of complex structure, lithostratigraphy and high-grade metamorphism in the northeastern part of the mid-Proterozoic Namaqua Tectonic Province. The HRTS comprises the boundary zone separating the Bushmanland and Gordonia Subprovinces of the Namaqua Province. A knowledge of the movement histories of major ductile shear zones within the HRTS is fundamental to understanding the tectonic development of the belt, and Namaqua tectogenesis as a whole. In spite of this, no detailed microstructural kinematic studies have been attempted and the movement histories and age relationships of these shear zones have not been described in detail. This thesis represents a detailed microstructural kinematic study of a representative suite of orientated samples of mylonitic rocks, collected from five ductile shear zones within the HRTS. These shear zones include the Neusspruit Lineament, the Kakamas shear zone (KSZ), the Hugosput shear system (HSS), the Rozynenbosch-Ganzenmond shear zone (RGSZ) and the Graafwater shear system (GSS). Accepted modern methods of microstructural kinematic analysis were applied to samples of mylonite from these shear zones, in order to determine the precise orientation of the kinematic vectors, and the sense and relative ages of movements on each of the shear zones. Shear sense criteria, including composite SoC planar fabrics and shear band foliations, asymmetrical porphyroclast systems, mica-fish, oblique grain-shape and subgrain fabrics, asymmetrical microfolds, and the displacement of fractured rigid grains, together with a well-developed mylonite elongation lineation, conclusively indicate that SSW-directed thrusting occurred along the HSS, RGSZ, GSS and possibly along the Neusspruit Lineament, while normal, top-to-NE movements occurred on the Neusspruit Lineament, KSZ and HSS. Rare transposition criteria, and textural and paragenetic contrasts between syn-kinematic fabrics, strongly suggest that the phase of normal, top-to-NE movement seen in the northeastern HRTS shear zones is younger than the more widespread top-to-SW thrusting event. On the basis of mesoscopic structural criteria, SSW-directed thrusting is correlated with the D₂ deformation event in the HRTS. The mylonite zones have been refolded by ENE-SSW trending F₃ crossfolds, whose demonstrated coaxial relationship to the mylonite elongation lineation precluded reorientation of primary kinematic vectors. In the southwestern HRTS, primary thrust vectors have been reoriented by right-lateral, strike-slip shearing adjacent to the Pofadder Lineament during D₄. Simple shear dispersion of mylonite lineations related to normal movement, suggests that they too have been modified by D₄ shearing, and this constrains the timing of extensional movements to post-D₂ and pre- or syn-D₄. Syn-kinematic mineral assemblages, rheological criteria and the annealing states of the mylonites, provide insight into the thermotectonic evolution of the shear zones. A model is proposed in which the movement histories of shear zones within the HRTS are explained in terms of a typical orogenic cycle, involving crustal thickening by thrusting during a compressional orogenic phase, followed by collapse of the thickened crust during an extensional taphrogenic phase.
- Full Text:
- Date Issued: 1992
- Authors: Jackson, Christopher
- Date: 1992
- Subjects: Metamorphic rocks -- South Africa -- Northern Cape , Mylonite -- South Africa -- Northern Cape , Geology -- South Africa -- Northern Cape
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4976 , http://hdl.handle.net/10962/d1005588 , Metamorphic rocks -- South Africa -- Northern Cape , Mylonite -- South Africa -- Northern Cape , Geology -- South Africa -- Northern Cape
- Description: The Hartbees River Thrust Belt (HRTS) is a 40-60 km wide, southwest-vergent zone of complex structure, lithostratigraphy and high-grade metamorphism in the northeastern part of the mid-Proterozoic Namaqua Tectonic Province. The HRTS comprises the boundary zone separating the Bushmanland and Gordonia Subprovinces of the Namaqua Province. A knowledge of the movement histories of major ductile shear zones within the HRTS is fundamental to understanding the tectonic development of the belt, and Namaqua tectogenesis as a whole. In spite of this, no detailed microstructural kinematic studies have been attempted and the movement histories and age relationships of these shear zones have not been described in detail. This thesis represents a detailed microstructural kinematic study of a representative suite of orientated samples of mylonitic rocks, collected from five ductile shear zones within the HRTS. These shear zones include the Neusspruit Lineament, the Kakamas shear zone (KSZ), the Hugosput shear system (HSS), the Rozynenbosch-Ganzenmond shear zone (RGSZ) and the Graafwater shear system (GSS). Accepted modern methods of microstructural kinematic analysis were applied to samples of mylonite from these shear zones, in order to determine the precise orientation of the kinematic vectors, and the sense and relative ages of movements on each of the shear zones. Shear sense criteria, including composite SoC planar fabrics and shear band foliations, asymmetrical porphyroclast systems, mica-fish, oblique grain-shape and subgrain fabrics, asymmetrical microfolds, and the displacement of fractured rigid grains, together with a well-developed mylonite elongation lineation, conclusively indicate that SSW-directed thrusting occurred along the HSS, RGSZ, GSS and possibly along the Neusspruit Lineament, while normal, top-to-NE movements occurred on the Neusspruit Lineament, KSZ and HSS. Rare transposition criteria, and textural and paragenetic contrasts between syn-kinematic fabrics, strongly suggest that the phase of normal, top-to-NE movement seen in the northeastern HRTS shear zones is younger than the more widespread top-to-SW thrusting event. On the basis of mesoscopic structural criteria, SSW-directed thrusting is correlated with the D₂ deformation event in the HRTS. The mylonite zones have been refolded by ENE-SSW trending F₃ crossfolds, whose demonstrated coaxial relationship to the mylonite elongation lineation precluded reorientation of primary kinematic vectors. In the southwestern HRTS, primary thrust vectors have been reoriented by right-lateral, strike-slip shearing adjacent to the Pofadder Lineament during D₄. Simple shear dispersion of mylonite lineations related to normal movement, suggests that they too have been modified by D₄ shearing, and this constrains the timing of extensional movements to post-D₂ and pre- or syn-D₄. Syn-kinematic mineral assemblages, rheological criteria and the annealing states of the mylonites, provide insight into the thermotectonic evolution of the shear zones. A model is proposed in which the movement histories of shear zones within the HRTS are explained in terms of a typical orogenic cycle, involving crustal thickening by thrusting during a compressional orogenic phase, followed by collapse of the thickened crust during an extensional taphrogenic phase.
- Full Text:
- Date Issued: 1992
An examination of the sonnets of E.E. Cummings
- Authors: Hughes, Jeremy Francis
- Date: 1992
- Subjects: Cummings, E. E. (Edward Estlin), 1894-1962 -- Criticism and interpretation Sonnets, English -- Criticism and interpretation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2244 , http://hdl.handle.net/10962/d1002287
- Description: This dissertation examines E. E. Cummings's writings in the sonnet genre and in those genres to which the sonnet is related in various ways. Its fundamental point is that, despite the surface impression of poetic iconoclasm for which Cummings has a popular reputation, in choosing to write sonnets he engages in a traditional literary practice. He does this because his purpose is always to be an artist, as defined by the Aesthetic movement which influenced him. In order to argue his embracing of a traditional artistic role, the theory of genres espoused by Alastair Fowler in his book, Kinds of Literature, is used. Chapter 1 of the thesis comprises general introductory material, both to the range of Aesthetic ideas to which Cummings subscribed, and to Fowler's theory of genres. Several key generic kinds are also described. The second chapter makes use of two of these generic models, the sonnet sequence and the silva, as a way of examining Cummings's deployment of the sonnet within the larger context of his poetry collections. It is a survey of the structure of the anthologies he compiled from Tulips & Chimneys (1922) to 95 Poems (1958). The third chapter explores the three sonnet modes which Cummings first identifies and names when compiling the manuscript of Tulips & Chimneys, and continues to use in his collections up to and including is 5 (1926). Chapter 4 shows how certain themes and concerns from these early sonnets are altered and synthesised as Cummings matures from an aesthete to a Romantic poet. Sonnets from his later books are taken to be representative of three central kinds in all of his work after is 5. Chapters 3 and 4 proceed by means of relatively close readings of individual sonnets. This practice fulfils a double role: it penetrates the apparent obscurity of the more difficult poems, and it attempts to preserve the integrity of individual poems which exemplify different generic tendencies in Cummings's work. One of Cummings's reasons for writing sonnets is that the form favours the achievement of what Wordsworth calls "a feeling of intense unity". In undertaking close readings of a few sonnets I have attempted to preserve that feeling.
- Full Text:
- Date Issued: 1992
- Authors: Hughes, Jeremy Francis
- Date: 1992
- Subjects: Cummings, E. E. (Edward Estlin), 1894-1962 -- Criticism and interpretation Sonnets, English -- Criticism and interpretation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2244 , http://hdl.handle.net/10962/d1002287
- Description: This dissertation examines E. E. Cummings's writings in the sonnet genre and in those genres to which the sonnet is related in various ways. Its fundamental point is that, despite the surface impression of poetic iconoclasm for which Cummings has a popular reputation, in choosing to write sonnets he engages in a traditional literary practice. He does this because his purpose is always to be an artist, as defined by the Aesthetic movement which influenced him. In order to argue his embracing of a traditional artistic role, the theory of genres espoused by Alastair Fowler in his book, Kinds of Literature, is used. Chapter 1 of the thesis comprises general introductory material, both to the range of Aesthetic ideas to which Cummings subscribed, and to Fowler's theory of genres. Several key generic kinds are also described. The second chapter makes use of two of these generic models, the sonnet sequence and the silva, as a way of examining Cummings's deployment of the sonnet within the larger context of his poetry collections. It is a survey of the structure of the anthologies he compiled from Tulips & Chimneys (1922) to 95 Poems (1958). The third chapter explores the three sonnet modes which Cummings first identifies and names when compiling the manuscript of Tulips & Chimneys, and continues to use in his collections up to and including is 5 (1926). Chapter 4 shows how certain themes and concerns from these early sonnets are altered and synthesised as Cummings matures from an aesthete to a Romantic poet. Sonnets from his later books are taken to be representative of three central kinds in all of his work after is 5. Chapters 3 and 4 proceed by means of relatively close readings of individual sonnets. This practice fulfils a double role: it penetrates the apparent obscurity of the more difficult poems, and it attempts to preserve the integrity of individual poems which exemplify different generic tendencies in Cummings's work. One of Cummings's reasons for writing sonnets is that the form favours the achievement of what Wordsworth calls "a feeling of intense unity". In undertaking close readings of a few sonnets I have attempted to preserve that feeling.
- Full Text:
- Date Issued: 1992
Pushing out towards the limits, and finding the centre: the mystical vision in the work of Ursula K. Le Guin
- Authors: Hoyle, Gisela Beate
- Date: 1992
- Subjects: Le Guin, Ursula K., 1929- Criticism and interpretation , Mysticism in literature
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2243 , http://hdl.handle.net/10962/d1002286 , Le Guin, Ursula K., 1929- Criticism and interpretation , Mysticism in literature
- Description: This thesis explores the major novels of science fiction and fantasy writer, Ursula K. Le Guin: it follows her journey from her first imaginary country, Orsinia, through the inner lands of Earthsea and the outer spaces of the Hainish Ekumen to her Yin utopia in a future California and an Earthsea revisited. In each of these worlds she moves towards an experience of an inner, unified truth which is comparable to the ecstatic experience of the religious mystics and that of which T.S Eliot writes in his Four Quartets. Through her reading of the Taoist sages and the discovery of their perception of Life as a constant and ongoing process rather than as a series of isolated events or states, whether mystical or mundane, these worlds and planets become symbols of a way of life instead of static objects. In her medium, narrative, this way is embodied in the story: the movement towards that moment of enlightenment, which is revealed as the heart, the life-giving centre of each world. It is the home to which each journey returns. "True voyage is return' (The Dispossessed). Owing to this perception of the immanent (w)holiness of life, of the many, different realities, she moves from a serene Taoist equilibrium to an angry feminist rejection of the masculine, dualist, Western civilisation, in which Man has largely been perceived as a creature apart; apart from nature, a guest on this planet, belonging to another world. In her anarchist and feminist utopias she seeks a new spititual home, a less alienated identity for humankind. Despite this apparent "development", at the heart of aU her books there is that same joy in this, mortal life, the search for which she sees as the most essential of aU human pursuits. That, ultimately, is both source and subject of Le Guin's work; and each new world explored is a different manifestation of the joyful Tao, a celebration of life.
- Full Text:
- Date Issued: 1992
- Authors: Hoyle, Gisela Beate
- Date: 1992
- Subjects: Le Guin, Ursula K., 1929- Criticism and interpretation , Mysticism in literature
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2243 , http://hdl.handle.net/10962/d1002286 , Le Guin, Ursula K., 1929- Criticism and interpretation , Mysticism in literature
- Description: This thesis explores the major novels of science fiction and fantasy writer, Ursula K. Le Guin: it follows her journey from her first imaginary country, Orsinia, through the inner lands of Earthsea and the outer spaces of the Hainish Ekumen to her Yin utopia in a future California and an Earthsea revisited. In each of these worlds she moves towards an experience of an inner, unified truth which is comparable to the ecstatic experience of the religious mystics and that of which T.S Eliot writes in his Four Quartets. Through her reading of the Taoist sages and the discovery of their perception of Life as a constant and ongoing process rather than as a series of isolated events or states, whether mystical or mundane, these worlds and planets become symbols of a way of life instead of static objects. In her medium, narrative, this way is embodied in the story: the movement towards that moment of enlightenment, which is revealed as the heart, the life-giving centre of each world. It is the home to which each journey returns. "True voyage is return' (The Dispossessed). Owing to this perception of the immanent (w)holiness of life, of the many, different realities, she moves from a serene Taoist equilibrium to an angry feminist rejection of the masculine, dualist, Western civilisation, in which Man has largely been perceived as a creature apart; apart from nature, a guest on this planet, belonging to another world. In her anarchist and feminist utopias she seeks a new spititual home, a less alienated identity for humankind. Despite this apparent "development", at the heart of aU her books there is that same joy in this, mortal life, the search for which she sees as the most essential of aU human pursuits. That, ultimately, is both source and subject of Le Guin's work; and each new world explored is a different manifestation of the joyful Tao, a celebration of life.
- Full Text:
- Date Issued: 1992
Working with the contemptuous client in psychotherapy
- Authors: Hoffman, Elan
- Date: 1992
- Subjects: Psychotherapist and patient -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3213 , http://hdl.handle.net/10962/d1012315 , Psychotherapist and patient -- Case studies
- Description: The purpose of this case study is to explore the issue of contempt in the therapeutic relationship. The aims are twofold; namely, to illustrate to what extent the case studied throws light on existing theories on contempt in psychotherapy, and to enquire about which stance adopted by the therapist is most appropriate in the therapeutic interaction with a contemptuous client. It investigates the validity of using the case study method in examining both the content and the process of this particular course of psychotherapy. Literature on contempt in psychotherapy is reviewed, as well as the foundation-stone on which it rests, namely, the Kleinian approach to envy . The concepts of the superego and false self are also drawn upon in understanding this particular client's dynamics. The client's therapy is then presented and explored, in order to gain insight into how a psychotherapist's understanding of the contemptuous client can clarify the process of therapy. It highlights the limitations and potentialities that exist in working in this sphere of resistance, and raises questions relevant to therapists faced with these clients. The case study shows how theory in this area is helpful in understanding the contemptuous client, and that the ability of the therapist to endure and survive the contempt of the client is a crucial factor in working with the contemptuous individual.
- Full Text:
- Date Issued: 1992
- Authors: Hoffman, Elan
- Date: 1992
- Subjects: Psychotherapist and patient -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3213 , http://hdl.handle.net/10962/d1012315 , Psychotherapist and patient -- Case studies
- Description: The purpose of this case study is to explore the issue of contempt in the therapeutic relationship. The aims are twofold; namely, to illustrate to what extent the case studied throws light on existing theories on contempt in psychotherapy, and to enquire about which stance adopted by the therapist is most appropriate in the therapeutic interaction with a contemptuous client. It investigates the validity of using the case study method in examining both the content and the process of this particular course of psychotherapy. Literature on contempt in psychotherapy is reviewed, as well as the foundation-stone on which it rests, namely, the Kleinian approach to envy . The concepts of the superego and false self are also drawn upon in understanding this particular client's dynamics. The client's therapy is then presented and explored, in order to gain insight into how a psychotherapist's understanding of the contemptuous client can clarify the process of therapy. It highlights the limitations and potentialities that exist in working in this sphere of resistance, and raises questions relevant to therapists faced with these clients. The case study shows how theory in this area is helpful in understanding the contemptuous client, and that the ability of the therapist to endure and survive the contempt of the client is a crucial factor in working with the contemptuous individual.
- Full Text:
- Date Issued: 1992
The psychological sequelae of involvement in combat: a preliminary investigation
- Authors: Hodgson, Shane Ralph Colin
- Date: 1992
- Subjects: War -- Psychological aspects , War victims -- Mental health , Post-traumatic stress disorder
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:2993 , http://hdl.handle.net/10962/d1002502 , War -- Psychological aspects , War victims -- Mental health , Post-traumatic stress disorder
- Description: The psychological sequelae of being involved in combat are only recently coming to be understood. Most of the available data are from research conducted on help-seeking Vietnam veterans in the United States, and very little work has been done in South Africa. There does not as yet appear to be any instrument designed specifically to detect combat-related psychopathologies amongst soldiers who are still in active service, either in the USA or in South Africa. Combat involvement has been shown to lead to a high incidence of combat stress reaction. This in turn has shown that it can predispose sufferers to the development of a Post-traumatic Stress Disorder. It is thus expected that there would be significantly higher incidences of reported symptoms of stress disorders amongst soldiers exposed to high levels of combat as compared with a similar group of soldiers who had no combat involvement. This study used a self-reporting questionnaire, developed in the USA but adapted for use in South Africa, to allow the soldiers in the study to rate the severity of various symptoms derived from the DSM-III criteria for Post-traumatic Stress Disorder. A Beck Depression Inventory was also administered to eliminate any persons who nay have been exhibiting symptoms of depression, as this would have confounded the results. Both questionnaires were administered to serving members of the Permanent Force of the South African Defence Force, with one group being members of various high-combat units based in what was then South West Africa, and the other group being non-combat or Headquarters elements. As a precondition of the study, absolute confidentiality of the respondents and their units was maintained. The study found the expected higher scores in the high-combat group, and also showed that the Keane questionnaire has a good coefficient alpha in South Africa. The study closes with several recommendations for further research, especially in the light of the new PTSD criteria in the DSM-IIIR.
- Full Text:
- Date Issued: 1992
- Authors: Hodgson, Shane Ralph Colin
- Date: 1992
- Subjects: War -- Psychological aspects , War victims -- Mental health , Post-traumatic stress disorder
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:2993 , http://hdl.handle.net/10962/d1002502 , War -- Psychological aspects , War victims -- Mental health , Post-traumatic stress disorder
- Description: The psychological sequelae of being involved in combat are only recently coming to be understood. Most of the available data are from research conducted on help-seeking Vietnam veterans in the United States, and very little work has been done in South Africa. There does not as yet appear to be any instrument designed specifically to detect combat-related psychopathologies amongst soldiers who are still in active service, either in the USA or in South Africa. Combat involvement has been shown to lead to a high incidence of combat stress reaction. This in turn has shown that it can predispose sufferers to the development of a Post-traumatic Stress Disorder. It is thus expected that there would be significantly higher incidences of reported symptoms of stress disorders amongst soldiers exposed to high levels of combat as compared with a similar group of soldiers who had no combat involvement. This study used a self-reporting questionnaire, developed in the USA but adapted for use in South Africa, to allow the soldiers in the study to rate the severity of various symptoms derived from the DSM-III criteria for Post-traumatic Stress Disorder. A Beck Depression Inventory was also administered to eliminate any persons who nay have been exhibiting symptoms of depression, as this would have confounded the results. Both questionnaires were administered to serving members of the Permanent Force of the South African Defence Force, with one group being members of various high-combat units based in what was then South West Africa, and the other group being non-combat or Headquarters elements. As a precondition of the study, absolute confidentiality of the respondents and their units was maintained. The study found the expected higher scores in the high-combat group, and also showed that the Keane questionnaire has a good coefficient alpha in South Africa. The study closes with several recommendations for further research, especially in the light of the new PTSD criteria in the DSM-IIIR.
- Full Text:
- Date Issued: 1992
A consideration of the usefulness of Medard Boss's approach to dream explication, in an attempt to reveal the potential for forward movement
- Authors: Hill, Patricia Margaret
- Date: 1992
- Subjects: Boss, Medard, 1903-1990 , Dream interpretation -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3212 , http://hdl.handle.net/10962/d1012271 , Boss, Medard, 1903-1990 , Dream interpretation -- Case studies
- Description: The purpose of this study is to investigate the value of using a Daseinsanalytic approach to dream explication in order to reveal the essential meaningfulness of behaviourial possibilities for the patient. After discussing the Daseinsanalytic view on dream explication, emphasizing Medard Boss's approach as the major exponent of this view, the study explores the usefulness and validity of the study as a method of investigating the dreams from this perspective. The dreams related in this study are examined individually, giving a phenomenological understanding of each and also providing a possible prospective focus for therapy. It will be shown that the phenomenological understanding of the patient's dreams corresponds with his subjective experience of his emotional existential situation and that any positive changes in the content of the dreams over time corresponds with observable and related changes in his behaviour, ideation and mood. However, if the suggested prospective focus of Medard Boss had been more usefully employed when each dream was explicated in the therapy sessions, it is felt that the progress of therapy would have been greatly enhanced. This study therefore concludes that the use of Medard Boss's approach to dream explication has not only a hermeneutic value in the process of therapy, but also aids the dreamer in becoming aware of the possible modes of behaviour yet unrevealed in his waking life.
- Full Text:
- Date Issued: 1992
- Authors: Hill, Patricia Margaret
- Date: 1992
- Subjects: Boss, Medard, 1903-1990 , Dream interpretation -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3212 , http://hdl.handle.net/10962/d1012271 , Boss, Medard, 1903-1990 , Dream interpretation -- Case studies
- Description: The purpose of this study is to investigate the value of using a Daseinsanalytic approach to dream explication in order to reveal the essential meaningfulness of behaviourial possibilities for the patient. After discussing the Daseinsanalytic view on dream explication, emphasizing Medard Boss's approach as the major exponent of this view, the study explores the usefulness and validity of the study as a method of investigating the dreams from this perspective. The dreams related in this study are examined individually, giving a phenomenological understanding of each and also providing a possible prospective focus for therapy. It will be shown that the phenomenological understanding of the patient's dreams corresponds with his subjective experience of his emotional existential situation and that any positive changes in the content of the dreams over time corresponds with observable and related changes in his behaviour, ideation and mood. However, if the suggested prospective focus of Medard Boss had been more usefully employed when each dream was explicated in the therapy sessions, it is felt that the progress of therapy would have been greatly enhanced. This study therefore concludes that the use of Medard Boss's approach to dream explication has not only a hermeneutic value in the process of therapy, but also aids the dreamer in becoming aware of the possible modes of behaviour yet unrevealed in his waking life.
- Full Text:
- Date Issued: 1992
Social development: theory, practice and evaluation
- Authors: Henderson, Thelma M
- Date: 1992
- Subjects: Social service -- South Africa -- Grahamstown , Social service -- Evaluation , Community development -- South Africa -- Grahamstown , Rhodes University. Centre for Social Development
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:697 , http://hdl.handle.net/10962/d1006418
- Description: Prior to 1976 few facilities and projects existed to serve the underprivileged communities in Grahamstown. Numerous attempts to establish development programmes had failed. From 1976 to 1981 informal attempts were initiated and a number of community based facilities were established. From 1981 to 1991 the Centre for Social Development assumed responsibility for this work and was able, with an enlarged staff, to inaugurate a wide range of projects and programmes. These cater to thousands of deprived people and enable them and their children to realise an improved quality of life. The dynamic processes and policies which have been employed are investigated. The value of this work is noteworthy because of the limited number of research papers on indigenous grassroots development projects in South Africa. The methods which have been utilised to enable unemployed people to play meaningful roles in their own communities are investigated. These include the establishment of much needed facilities and the in-service training of workers and committee teams to run and service them. Of particular importance is the role and structure of the Centre as an umbrella and resource organisation. The work of the Centre and its projects is described and evaluated. The qualitative, quantitative, exploratory and descriptive methods are used. The relationships between social welfare, community work and social planning are considered in relation to the theoretical base of the Centre. The situation in the Black and Coloured townships of Grahamstown, where most of the projects are located, is described with special reference to population, housing, basic services, crime and disease. Reasons for the high unemployment rates are enumerated. Various development models are described and their strengths and weaknesses assessed. Of particular significance are the origins of the Centre, the qualities brought to the project by the founding Director, its fundraising techniques, and procedures for training, supervision and project support. Aspects of development strategy not stressed in the literature, but of particular importance in the South African situation, are highlighted. These include the basic necessity for adequate financing, the provision of bursaries for tertiary study, the importance of nutritious food, the creation of job opportunities and the value of child centred projects as an access to the wider community. The necessity of financial control in the individual projects is also stressed. The primary aim of this work is to ascertain how projects have been established and maintained in a community where nothing on this scale has been attempted before. A secondary objective has been to find the theoretical base that best suits the work of the Centre. This is the social planning model in the social welfare field
- Full Text:
- Date Issued: 1992
- Authors: Henderson, Thelma M
- Date: 1992
- Subjects: Social service -- South Africa -- Grahamstown , Social service -- Evaluation , Community development -- South Africa -- Grahamstown , Rhodes University. Centre for Social Development
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:697 , http://hdl.handle.net/10962/d1006418
- Description: Prior to 1976 few facilities and projects existed to serve the underprivileged communities in Grahamstown. Numerous attempts to establish development programmes had failed. From 1976 to 1981 informal attempts were initiated and a number of community based facilities were established. From 1981 to 1991 the Centre for Social Development assumed responsibility for this work and was able, with an enlarged staff, to inaugurate a wide range of projects and programmes. These cater to thousands of deprived people and enable them and their children to realise an improved quality of life. The dynamic processes and policies which have been employed are investigated. The value of this work is noteworthy because of the limited number of research papers on indigenous grassroots development projects in South Africa. The methods which have been utilised to enable unemployed people to play meaningful roles in their own communities are investigated. These include the establishment of much needed facilities and the in-service training of workers and committee teams to run and service them. Of particular importance is the role and structure of the Centre as an umbrella and resource organisation. The work of the Centre and its projects is described and evaluated. The qualitative, quantitative, exploratory and descriptive methods are used. The relationships between social welfare, community work and social planning are considered in relation to the theoretical base of the Centre. The situation in the Black and Coloured townships of Grahamstown, where most of the projects are located, is described with special reference to population, housing, basic services, crime and disease. Reasons for the high unemployment rates are enumerated. Various development models are described and their strengths and weaknesses assessed. Of particular significance are the origins of the Centre, the qualities brought to the project by the founding Director, its fundraising techniques, and procedures for training, supervision and project support. Aspects of development strategy not stressed in the literature, but of particular importance in the South African situation, are highlighted. These include the basic necessity for adequate financing, the provision of bursaries for tertiary study, the importance of nutritious food, the creation of job opportunities and the value of child centred projects as an access to the wider community. The necessity of financial control in the individual projects is also stressed. The primary aim of this work is to ascertain how projects have been established and maintained in a community where nothing on this scale has been attempted before. A secondary objective has been to find the theoretical base that best suits the work of the Centre. This is the social planning model in the social welfare field
- Full Text:
- Date Issued: 1992
The evaluation of an individualised language programme in two multicultural Standard 9 classes : a pilot study
- Authors: Hartman, Lorraine Mary
- Date: 1992
- Subjects: English language -- Study and teaching (Secondary) -- South Africa English language -- Study and teaching (Secondary) -- South Africa -- Foreign speakers Language and education -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1523 , http://hdl.handle.net/10962/d1003405
- Description: Two multicultural, mixed-ability Standard Nine classes (17 year olds) were selected for this pilot study. As they were half way through the Senior Secondary phase they had completed most of their English Language syllabus. There was a wide range of achievement in English in addition to which, fifteen of the thirty-nine pupils were English second language speakers. The teacher had to decide how to cope adequately with these differences in the subject English in general and in particular, in the Language component. A Language programme was devised, based on the prescribed textbooks. The pupils could work through the programme at their own pace and order and could consult the researcher during or after class time. The programme only covered the prescribed Language Study component and only a quarter of the total English time during an eight-week period (one term) was given to its completion. A Pre-test was set, the Senior Certificate Language examination paper of 1986, and the results analysed. The two classes were combined into one group and then randomly placed in the experimental and control groups apart from eight boys whose timetable requirements restricted them to being in the same group. The experimental and control groups were not matched. Aspects of Action Research were included in the design; pupils kept individual records; diaries were written by three pupils from each group and an independent observation was made of each group. A Post-test was administered (the 1989 Human Sciences Research Council examination) and this was followed by a questionnaire. The hypothesis, stated in null form, was: Pupils taught by individualised methods will not achieve better results than those taught by traditional methods. This hypothesis proved to be true. The experimental group, who achieved a better result in the pre-test maintained their lead over the control group but did not increase it. Neither group fared well on the post-test but the experimental group achieved a result slightly higher than the provincial average. The affective results were more positive, most pupils enjoying their autonomy and experiencing a sense of achievement despite their results in the post-test. A few preferred whole and small-group teaching, showing that the teacher needs to present the subject in more than one style. This small-scale experiment dealt only with one aspect of English teaching, but there is potential for development particularly with regard to the use of individualised programmes both for remedial and enrichment purposes. The innovative teacher in the multicultural classroom could use individualised programmes profitably as part of his teaching repertoire.
- Full Text:
- Date Issued: 1992
- Authors: Hartman, Lorraine Mary
- Date: 1992
- Subjects: English language -- Study and teaching (Secondary) -- South Africa English language -- Study and teaching (Secondary) -- South Africa -- Foreign speakers Language and education -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1523 , http://hdl.handle.net/10962/d1003405
- Description: Two multicultural, mixed-ability Standard Nine classes (17 year olds) were selected for this pilot study. As they were half way through the Senior Secondary phase they had completed most of their English Language syllabus. There was a wide range of achievement in English in addition to which, fifteen of the thirty-nine pupils were English second language speakers. The teacher had to decide how to cope adequately with these differences in the subject English in general and in particular, in the Language component. A Language programme was devised, based on the prescribed textbooks. The pupils could work through the programme at their own pace and order and could consult the researcher during or after class time. The programme only covered the prescribed Language Study component and only a quarter of the total English time during an eight-week period (one term) was given to its completion. A Pre-test was set, the Senior Certificate Language examination paper of 1986, and the results analysed. The two classes were combined into one group and then randomly placed in the experimental and control groups apart from eight boys whose timetable requirements restricted them to being in the same group. The experimental and control groups were not matched. Aspects of Action Research were included in the design; pupils kept individual records; diaries were written by three pupils from each group and an independent observation was made of each group. A Post-test was administered (the 1989 Human Sciences Research Council examination) and this was followed by a questionnaire. The hypothesis, stated in null form, was: Pupils taught by individualised methods will not achieve better results than those taught by traditional methods. This hypothesis proved to be true. The experimental group, who achieved a better result in the pre-test maintained their lead over the control group but did not increase it. Neither group fared well on the post-test but the experimental group achieved a result slightly higher than the provincial average. The affective results were more positive, most pupils enjoying their autonomy and experiencing a sense of achievement despite their results in the post-test. A few preferred whole and small-group teaching, showing that the teacher needs to present the subject in more than one style. This small-scale experiment dealt only with one aspect of English teaching, but there is potential for development particularly with regard to the use of individualised programmes both for remedial and enrichment purposes. The innovative teacher in the multicultural classroom could use individualised programmes profitably as part of his teaching repertoire.
- Full Text:
- Date Issued: 1992
Complete regularity and related concepts in L-uniform spaces
- Authors: Harnett, Rait Sicklen
- Date: 1992
- Subjects: Uniform spaces , Mathematics -- Research
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5403 , http://hdl.handle.net/10962/d1005217 , Uniform spaces , Mathematics -- Research
- Description: L will denote a completely distributive lattice with an order reversing involution. The concept of an L-uniform space is introduced. An extension theorem concerning L-uniformly continuous functions is proved. A characterisation of L-uniformizability, involving L-complete regularity is given. With respect to L--completely regular spaces it is shown that the topological modification of an L-completely regular space is completely regular. Furthermore it is shown that the topologically generated L-topology of a completely regular space is L-completely regular.
- Full Text:
- Date Issued: 1992
- Authors: Harnett, Rait Sicklen
- Date: 1992
- Subjects: Uniform spaces , Mathematics -- Research
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5403 , http://hdl.handle.net/10962/d1005217 , Uniform spaces , Mathematics -- Research
- Description: L will denote a completely distributive lattice with an order reversing involution. The concept of an L-uniform space is introduced. An extension theorem concerning L-uniformly continuous functions is proved. A characterisation of L-uniformizability, involving L-complete regularity is given. With respect to L--completely regular spaces it is shown that the topological modification of an L-completely regular space is completely regular. Furthermore it is shown that the topologically generated L-topology of a completely regular space is L-completely regular.
- Full Text:
- Date Issued: 1992
Influence of the oil phase dispersion in a cream base on the in vivo release of betamethasone 17-valerate
- Haigh, J M, Smith, E W, Meyer, E, Fassihi, A R
- Authors: Haigh, J M , Smith, E W , Meyer, E , Fassihi, A R
- Date: 1992
- Language: English
- Type: Article
- Identifier: vital:6365 , http://hdl.handle.net/10962/d1006065
- Description: Release of betamethasone valerate (betamethasone 17-valerate) from 3 extemporaneous cream formulations (1 control, 1 containing propylene glycol, and 1 containing \b/-cyclodextrin) and a commercial cream formulation (Betnovate) was compared using the human skin blanching assay in 12 healthy male volunteers. All 3 extemporaneous formulations showed similar drug release rates, equivalent to or better than the commercial preparation containing betamethasone in a 10 fold higher concentration. Electron microscopic examination showed considerably finer dispersion of the oil phase in the extemporaneous formulations. It was concluded that the increased surface area available for partitioning of betamethasone between the cream and the skin is responsible for the improved topical availability of the drug from the extemporaneous formulations.
- Full Text: false
- Date Issued: 1992
- Authors: Haigh, J M , Smith, E W , Meyer, E , Fassihi, A R
- Date: 1992
- Language: English
- Type: Article
- Identifier: vital:6365 , http://hdl.handle.net/10962/d1006065
- Description: Release of betamethasone valerate (betamethasone 17-valerate) from 3 extemporaneous cream formulations (1 control, 1 containing propylene glycol, and 1 containing \b/-cyclodextrin) and a commercial cream formulation (Betnovate) was compared using the human skin blanching assay in 12 healthy male volunteers. All 3 extemporaneous formulations showed similar drug release rates, equivalent to or better than the commercial preparation containing betamethasone in a 10 fold higher concentration. Electron microscopic examination showed considerably finer dispersion of the oil phase in the extemporaneous formulations. It was concluded that the increased surface area available for partitioning of betamethasone between the cream and the skin is responsible for the improved topical availability of the drug from the extemporaneous formulations.
- Full Text: false
- Date Issued: 1992
Structural analysis of some Escherichia coli capsular antigens
- Authors: Hackland, Peter Linton
- Date: 1992
- Subjects: Antigens , Enterobacteriaceae , Escherichia
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3758 , http://hdl.handle.net/10962/d1003236 , Antigens , Enterobacteriaceae , Escherichia
- Description: The work presented in this thesis forms part of a collaborative effort to determine the chemical structures of the surface antigens of bacteria which belong to the Enterobacteriaceae. These antigens are largely polysaccharides and occur as lipopolysaccharides and capsular polysaccharides which give rise to the somatic or 0 antigens and the capsular or K antigens, respectively. In recent years interest has mostly been focused on the extracellular polysaccharide antigens expressed by the genus Escherichia coli because of the effect they exert on normal immunological processes and their structural relatedness to the surface antigens of other more pathogenic bacteria. Therefore the molecular structures of the capsular polysaccharides (Kantigens)produced by E. coli 09:K35(AI04a) and 09:K38(A262a) have been determined by novel enzymic, chemical and spectroscopic procedures. These investigations show that the structures of these polysaccharides can be determined by a combination of chemical and spectroscopic procedures , or almost entirely by n.m.r. spectroscopy alone. The in vitro bacteriophage mediated depolymerisation of the native E. coli K35 polysaccharide demonstrates the value of this method for the isolation of oligosaccharides representing the repeating- unit and multiples thereof. Finally E. coli K37 and K38 capsular polysaccharides were used as model compounds for the evaluation of partial and selective reductive cleavage as methods of generating oligosaccharide for further structural analysis. The products of these reactions were analysed largely by a combination of mass spectrometric procedures.
- Full Text:
- Date Issued: 1992
- Authors: Hackland, Peter Linton
- Date: 1992
- Subjects: Antigens , Enterobacteriaceae , Escherichia
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3758 , http://hdl.handle.net/10962/d1003236 , Antigens , Enterobacteriaceae , Escherichia
- Description: The work presented in this thesis forms part of a collaborative effort to determine the chemical structures of the surface antigens of bacteria which belong to the Enterobacteriaceae. These antigens are largely polysaccharides and occur as lipopolysaccharides and capsular polysaccharides which give rise to the somatic or 0 antigens and the capsular or K antigens, respectively. In recent years interest has mostly been focused on the extracellular polysaccharide antigens expressed by the genus Escherichia coli because of the effect they exert on normal immunological processes and their structural relatedness to the surface antigens of other more pathogenic bacteria. Therefore the molecular structures of the capsular polysaccharides (Kantigens)produced by E. coli 09:K35(AI04a) and 09:K38(A262a) have been determined by novel enzymic, chemical and spectroscopic procedures. These investigations show that the structures of these polysaccharides can be determined by a combination of chemical and spectroscopic procedures , or almost entirely by n.m.r. spectroscopy alone. The in vitro bacteriophage mediated depolymerisation of the native E. coli K35 polysaccharide demonstrates the value of this method for the isolation of oligosaccharides representing the repeating- unit and multiples thereof. Finally E. coli K37 and K38 capsular polysaccharides were used as model compounds for the evaluation of partial and selective reductive cleavage as methods of generating oligosaccharide for further structural analysis. The products of these reactions were analysed largely by a combination of mass spectrometric procedures.
- Full Text:
- Date Issued: 1992