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A critical analysis of school computer studies syllabuses in South Africa with reference to university computer science curricula
- Authors: Roets, Rina Annette
- Date: 1992
- Subjects: Electronic data processing -- Study and teaching (Secondary) -- South Africa Electronic data processing -- Study and teaching (Higher) -- South Africa Electronic data processing -- Curricula -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1471 , http://hdl.handle.net/10962/d1003352
- Description: This thesis analyses the existing and proposed Computer Studies syllabuses in South African schools. Thereafter it compares the South African syllabuses with syllabuses in the United Kingdom. An attempt is made to assess the objectives of the design of the new S.A. syllabus. University Computer Science syllabuses are examined in order to gauge the purported overlap between what is taught at schools and universities. Opinions are obtained on the problems which apparently exist in offering or teaching the subject at schools and universities by conducting surveys on syllabus designers and university Computer Science departments. Finally recommendations are made for future Computer Studies syllabuses.
- Full Text:
- Date Issued: 1992
- Authors: Roets, Rina Annette
- Date: 1992
- Subjects: Electronic data processing -- Study and teaching (Secondary) -- South Africa Electronic data processing -- Study and teaching (Higher) -- South Africa Electronic data processing -- Curricula -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1471 , http://hdl.handle.net/10962/d1003352
- Description: This thesis analyses the existing and proposed Computer Studies syllabuses in South African schools. Thereafter it compares the South African syllabuses with syllabuses in the United Kingdom. An attempt is made to assess the objectives of the design of the new S.A. syllabus. University Computer Science syllabuses are examined in order to gauge the purported overlap between what is taught at schools and universities. Opinions are obtained on the problems which apparently exist in offering or teaching the subject at schools and universities by conducting surveys on syllabus designers and university Computer Science departments. Finally recommendations are made for future Computer Studies syllabuses.
- Full Text:
- Date Issued: 1992
The exploration for and possible genesis of, some Archaean granite/gneiss-hosted gold deposits in the Pietersburg granite-greenstone terrane
- Linklater, Michael Anthony Leonard Flanders
- Authors: Linklater, Michael Anthony Leonard Flanders
- Date: 1992
- Subjects: Gold ores -- Geology -- South Africa , Gneiss , Granite
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4945 , http://hdl.handle.net/10962/d1005557 , Gold ores -- Geology -- South Africa , Gneiss , Granite
- Description: Abstract The gold mineralization event within Archaean granite-greenstone terranes occurred during the late Archaean, and followed the intrusion of syn- to late-tectonic granitic plutons into previously deformed greenstone belts. An Archaean granite/gneiss-hosted gold deposit, in terms of this project, is classified as having a gold-assay cutoff of 1g/metric ton over widths of at least several metres, or higher grades over narrower widths and/or verbal descriptions that indicate such values. Fluid inclusion studies and isotopic data identify two possible origins for the auriferous fluids; namely magmatic and metamorphic. The exploration target according to the magmatic model, is a late-Archaean, hydrothermally altered, mineralized and fractured granitic intrusion preferably with a granodioritic or quartz-dioritic composition. The exploration target according to the metamorphic replacement model is a granitic stock that has intruded a zone of crustal weakness such as a shear zone, active during the late Archaean. Alternatively, the granitic intrusion should be affected by regionally extensive late-Archaean shearing. It should be hydrothermally altered, deformed and mineralized. Five areas within the Pietersburg granite-greenstone terrane were selected for the 'Regional Area Selection' phase of exploration for Archaean granite/gneiss-hosted gold deposits; namely Roodepoort, Waterval, Ramagoep, Moletsie and Matlala. Roodepoort contains a known granodiorite-hosted gold deposit; the Knight's Pluton, and served as an orientation survey for this project. The use and interpretation of LANDSAT images formed an integral part of exploration techniques; to assess their usefulness in the exploration of Archaean granite/gneiss-hosted gold deposits. Area selection criteria for granite/gneiss-hosted gold mineralization at Roodepoort are the major ENE-trending shear zone, the NNW-trending lineament and hydrothermal alteration, shearing, quartz-stockworks and sulphide mineralization within the Knight's Pluton. The origin of the gold within the Knight's Pluton is uncertain; both magmatic and metamorphic models are possibilities. Ongoing exploration is in progress at Roodepoort. The only area selection criterion for granite/gneiss-hosted gold mineralization at Waterval is the sericitized, subcropping granites located within trenches. Gold mineralization is insignificant. No area selection criteria for Archaean granite/gneiss-hosted gold mineralization were located at Ramagoep, Matlala and Moletsie. No further exploration is recommended for all these areas. The MES image interpretations were successful in identifying lineaments, granitic outcrops, greenstones, vegetation and soil cover. The Clay-iron images adequately differentiated betweeen iron-rich and clay-bearing areas. However, not all clay-bearing areas were associated with hydrothermal alteratian; field checks were necessary to discriminate between weathered granites and hydrothermally altered granites. The Wallis images served to locally enhance the contrasts of the MES and Clay-iron images.
- Full Text:
- Date Issued: 1992
- Authors: Linklater, Michael Anthony Leonard Flanders
- Date: 1992
- Subjects: Gold ores -- Geology -- South Africa , Gneiss , Granite
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4945 , http://hdl.handle.net/10962/d1005557 , Gold ores -- Geology -- South Africa , Gneiss , Granite
- Description: Abstract The gold mineralization event within Archaean granite-greenstone terranes occurred during the late Archaean, and followed the intrusion of syn- to late-tectonic granitic plutons into previously deformed greenstone belts. An Archaean granite/gneiss-hosted gold deposit, in terms of this project, is classified as having a gold-assay cutoff of 1g/metric ton over widths of at least several metres, or higher grades over narrower widths and/or verbal descriptions that indicate such values. Fluid inclusion studies and isotopic data identify two possible origins for the auriferous fluids; namely magmatic and metamorphic. The exploration target according to the magmatic model, is a late-Archaean, hydrothermally altered, mineralized and fractured granitic intrusion preferably with a granodioritic or quartz-dioritic composition. The exploration target according to the metamorphic replacement model is a granitic stock that has intruded a zone of crustal weakness such as a shear zone, active during the late Archaean. Alternatively, the granitic intrusion should be affected by regionally extensive late-Archaean shearing. It should be hydrothermally altered, deformed and mineralized. Five areas within the Pietersburg granite-greenstone terrane were selected for the 'Regional Area Selection' phase of exploration for Archaean granite/gneiss-hosted gold deposits; namely Roodepoort, Waterval, Ramagoep, Moletsie and Matlala. Roodepoort contains a known granodiorite-hosted gold deposit; the Knight's Pluton, and served as an orientation survey for this project. The use and interpretation of LANDSAT images formed an integral part of exploration techniques; to assess their usefulness in the exploration of Archaean granite/gneiss-hosted gold deposits. Area selection criteria for granite/gneiss-hosted gold mineralization at Roodepoort are the major ENE-trending shear zone, the NNW-trending lineament and hydrothermal alteration, shearing, quartz-stockworks and sulphide mineralization within the Knight's Pluton. The origin of the gold within the Knight's Pluton is uncertain; both magmatic and metamorphic models are possibilities. Ongoing exploration is in progress at Roodepoort. The only area selection criterion for granite/gneiss-hosted gold mineralization at Waterval is the sericitized, subcropping granites located within trenches. Gold mineralization is insignificant. No area selection criteria for Archaean granite/gneiss-hosted gold mineralization were located at Ramagoep, Matlala and Moletsie. No further exploration is recommended for all these areas. The MES image interpretations were successful in identifying lineaments, granitic outcrops, greenstones, vegetation and soil cover. The Clay-iron images adequately differentiated betweeen iron-rich and clay-bearing areas. However, not all clay-bearing areas were associated with hydrothermal alteratian; field checks were necessary to discriminate between weathered granites and hydrothermally altered granites. The Wallis images served to locally enhance the contrasts of the MES and Clay-iron images.
- Full Text:
- Date Issued: 1992
Up Beat Issue Number 4 1992
- SACHED
- Authors: SACHED
- Date: 1992
- Subjects: SACHED
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/116237 , vital:34342
- Description: Conflict is OK. Violence is not! You can disagree with someone else’s views. But you can’t punch them! Conflict is a normal part of life. We are all different and want different things. As a result we often fight with the people around us - our family, friends and neighbours. You like rap but your boyfriend likes disco. You want to go out but your mom says stay at home. Every day Upbeat receives lots of letters from our readers. Many of the letters are about violence. There are stories about violence in the street and poems pleading for peace. There are letters seeking help in solving battles with boyfriends and parents. Readers tell us frightening tales about violence between gangs at school and students who hold different political views. The problem seems too big to solve. You may think our leaders should sort it out. But we can all do something to help build peace in our country. In this issue we start an exciting new series called ‘Be a peacemaker’. It is about how to tackle conflict without screaming, blaming or punching the person you are fighting with. Learn to be a peacemaker at home, school and in your community. YOU can make a difference. You can’t avoid conflicts in your life. But you can learn to 'fight fair’. Don’t forget! If you have ideas that you want to share or a story to tell - write to us. If you need advice on careers or sex education - let us know. Sometimes all it takes is a little bit of advice and information to make you feel better and get you on the move again.
- Full Text:
- Date Issued: 1992
- Authors: SACHED
- Date: 1992
- Subjects: SACHED
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/116237 , vital:34342
- Description: Conflict is OK. Violence is not! You can disagree with someone else’s views. But you can’t punch them! Conflict is a normal part of life. We are all different and want different things. As a result we often fight with the people around us - our family, friends and neighbours. You like rap but your boyfriend likes disco. You want to go out but your mom says stay at home. Every day Upbeat receives lots of letters from our readers. Many of the letters are about violence. There are stories about violence in the street and poems pleading for peace. There are letters seeking help in solving battles with boyfriends and parents. Readers tell us frightening tales about violence between gangs at school and students who hold different political views. The problem seems too big to solve. You may think our leaders should sort it out. But we can all do something to help build peace in our country. In this issue we start an exciting new series called ‘Be a peacemaker’. It is about how to tackle conflict without screaming, blaming or punching the person you are fighting with. Learn to be a peacemaker at home, school and in your community. YOU can make a difference. You can’t avoid conflicts in your life. But you can learn to 'fight fair’. Don’t forget! If you have ideas that you want to share or a story to tell - write to us. If you need advice on careers or sex education - let us know. Sometimes all it takes is a little bit of advice and information to make you feel better and get you on the move again.
- Full Text:
- Date Issued: 1992
Aspects of the biology of two inshore sparid fishes (Diplodus sargus capensis and Diplodus cervinus hottentotus) off the south-east coast of South Africa
- Authors: Mann, Bruce Quintin
- Date: 1992
- Subjects: Sparidae , Diplodus
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5222 , http://hdl.handle.net/10962/d1005065 , Sparidae , Diplodus
- Description: The blacktail, Diplodus sargus capensis and the zebra, Diplodus cervinus hottentotus, sparid fishes endemic to South Africa, are important components of the recreational shore-fishery. To provide a basis for the management of these fish, aspects of the biology of both species were investigated in the Tsitsikamma National Park (TNP). In particular, the role of the TNP was evaluated as a management option for the conservation of both species. Examination of stomach contents showed that juveniles of both species fed predominantly on amphipods, polychaetes and harpacticoid copepods. Adult !h. sargus were omnivorous and fed opportunistically on a wide variety of reef associated invertebrates and algae including echinoids, polychaetes, anthozoans, ascidians and rhodophytes. The diet of adult D. cervinus was more specialized with a preference shown for polychaetes and amphipods. Seasonal differences were apparent in the diets of both species where considerably more amphipods were consumed in winter than in summer. Feeding requirements of both species were reflected in their habitat preferences. Visual underwater assessment revealed that both species were most abundant on turbulent inshore reefs (1-10m). !h. sargus were observed over a wide variety of reef associated habitats. In the literature they have also been recorded in the surf zone of sandy beaches and in the lower reaches of estuaries. !h. cervinus, on the other hand, were more specific in their habitat requirements and were observed in greatest abundance on inshore reefs, often in close association with caves or overhangs. A comparison between the relative abundance and size structure of both species in the TNP with that of an exploited area immediately adjacent to the reserve, showed no significant differences. This was attributed to the low level of exploitation by rock-and-surf anglers occurring in the exploited study area, as well as the possibility of seeding of eggs and larvae, or emigration of adults from the TNP. An investigation of the reproductive biology of both fish showed that !h. sargus had an extended summer spawning season while in !h. cervi nus it was more restricted. Detailed histological examination of gonadal development showed that !h. sarqus were dygynous with partial protandry occuring in the male population. ~ cervinus were shown to be rudimentary hermaphrodites. Size at 50% maturity in ~ sargus and ~ cervinus was determined at 225 and 285mm fork length respectively, corresponding to ages of 4 and 6 years. An age and growth study based on the examination of sectioned otoliths showed that both species were slow growing capable of reaching ages in excess of 20 years. Growth in ~ sargus and ~ cervinus was described by the von Bertalanffy growth equations: L(t) = 309.44(1-e-0 . 247[t+l. 048 l) and L(t) = 396.85(1-e-0.146[t+2.148J) respectively. Life history characteristics of D. sargus and D. cervinus including slow growth, late maturation and occupation of a localised, demersal habitat showed that both species were vulnerable to the effects of over-fishing. Due to the present increase in the number of participants and the decrease in catch per unit effort in the recreational shore-fishery, more stringent management recommendations were proposed to ensure the adequate protection of both species. These included an increased minimum size limit and a decreased bag limit for both species. Based on the residency shown by both species and their high relative abundance in the TNP, marine reserves were considered to be a valuable addition to the suite of management options available for the conservation of these species . In this respect the reserve provided both protection for the spawner stock as well as the potential to seed adjacent areas.
- Full Text:
- Date Issued: 1992
- Authors: Mann, Bruce Quintin
- Date: 1992
- Subjects: Sparidae , Diplodus
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5222 , http://hdl.handle.net/10962/d1005065 , Sparidae , Diplodus
- Description: The blacktail, Diplodus sargus capensis and the zebra, Diplodus cervinus hottentotus, sparid fishes endemic to South Africa, are important components of the recreational shore-fishery. To provide a basis for the management of these fish, aspects of the biology of both species were investigated in the Tsitsikamma National Park (TNP). In particular, the role of the TNP was evaluated as a management option for the conservation of both species. Examination of stomach contents showed that juveniles of both species fed predominantly on amphipods, polychaetes and harpacticoid copepods. Adult !h. sargus were omnivorous and fed opportunistically on a wide variety of reef associated invertebrates and algae including echinoids, polychaetes, anthozoans, ascidians and rhodophytes. The diet of adult D. cervinus was more specialized with a preference shown for polychaetes and amphipods. Seasonal differences were apparent in the diets of both species where considerably more amphipods were consumed in winter than in summer. Feeding requirements of both species were reflected in their habitat preferences. Visual underwater assessment revealed that both species were most abundant on turbulent inshore reefs (1-10m). !h. sargus were observed over a wide variety of reef associated habitats. In the literature they have also been recorded in the surf zone of sandy beaches and in the lower reaches of estuaries. !h. cervinus, on the other hand, were more specific in their habitat requirements and were observed in greatest abundance on inshore reefs, often in close association with caves or overhangs. A comparison between the relative abundance and size structure of both species in the TNP with that of an exploited area immediately adjacent to the reserve, showed no significant differences. This was attributed to the low level of exploitation by rock-and-surf anglers occurring in the exploited study area, as well as the possibility of seeding of eggs and larvae, or emigration of adults from the TNP. An investigation of the reproductive biology of both fish showed that !h. sargus had an extended summer spawning season while in !h. cervi nus it was more restricted. Detailed histological examination of gonadal development showed that !h. sarqus were dygynous with partial protandry occuring in the male population. ~ cervinus were shown to be rudimentary hermaphrodites. Size at 50% maturity in ~ sargus and ~ cervinus was determined at 225 and 285mm fork length respectively, corresponding to ages of 4 and 6 years. An age and growth study based on the examination of sectioned otoliths showed that both species were slow growing capable of reaching ages in excess of 20 years. Growth in ~ sargus and ~ cervinus was described by the von Bertalanffy growth equations: L(t) = 309.44(1-e-0 . 247[t+l. 048 l) and L(t) = 396.85(1-e-0.146[t+2.148J) respectively. Life history characteristics of D. sargus and D. cervinus including slow growth, late maturation and occupation of a localised, demersal habitat showed that both species were vulnerable to the effects of over-fishing. Due to the present increase in the number of participants and the decrease in catch per unit effort in the recreational shore-fishery, more stringent management recommendations were proposed to ensure the adequate protection of both species. These included an increased minimum size limit and a decreased bag limit for both species. Based on the residency shown by both species and their high relative abundance in the TNP, marine reserves were considered to be a valuable addition to the suite of management options available for the conservation of these species . In this respect the reserve provided both protection for the spawner stock as well as the potential to seed adjacent areas.
- Full Text:
- Date Issued: 1992
Industrial social work : an exploration and an assessment of the practice of social work in industry in South Africa
- Authors: Rankin, Pedro
- Date: 1992
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3279 , http://hdl.handle.net/10962/d1006474
- Description: Industries in South Africa have been employing social workers in increasing numbers during the last decade, and in several of the bigger industries social work seem to have succeeded in establishing itself over the course of time. Certain forces seem to be operating in both industry and social work which could facilitate the introduction and development of industrial social work as a specialised field of practice in South Africa. Very significant variables in this regard are a rapidly changing labour force, and certain socio-political developments in South Africa, that took place especially during the last decade, and in particular during the past two years. A lack of knowledge about the practice of social work in industry exists in South Africa, mainly as a result of a general lack of empirical research into this field. The main purpose of this research project was to add to the knowledge about the nature of industrial social work practice in South Africa, and to contribute to an understanding of the forces influencing its development. In order to achieve this overall purpose, an extensive review of the existing literature was done with the aim of identifying and describing the present trends and issues in industrial social work thinking. This was combined with an empirical investigation into the practice of social workers presently employed in industry in South Africa. In addition to this, the attitude of industries not employing social workers was established with a view of determining factors influencing the further development of industrial social work. A third component of the empirical investigation consisted of a survey of the attitudes and knowledge of community welfare organisations regarding industrial social work practice. This was done in an effort to establish the amount of support for industrial social work from the rest of the profession. The findings of the empirical investigation indicated an emphasis on the individual employee as far as the practice of industrial social work is concerned - an EAP model thus. Industries not employing social workers still seem to need more education as far as the true nature of social work practice is concerned, and there seem to be a reserved acceptance of industrial social work practice amongst community welfare organisations, as well as a lack of knowledge. In conclusion it can be stated that the social work fraternity in South Africa should take more serious notice of occupational social work practice in South Africa in general, and of industrial social work practice in particular, mainly because of its importance to the worker.
- Full Text:
- Date Issued: 1992
- Authors: Rankin, Pedro
- Date: 1992
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3279 , http://hdl.handle.net/10962/d1006474
- Description: Industries in South Africa have been employing social workers in increasing numbers during the last decade, and in several of the bigger industries social work seem to have succeeded in establishing itself over the course of time. Certain forces seem to be operating in both industry and social work which could facilitate the introduction and development of industrial social work as a specialised field of practice in South Africa. Very significant variables in this regard are a rapidly changing labour force, and certain socio-political developments in South Africa, that took place especially during the last decade, and in particular during the past two years. A lack of knowledge about the practice of social work in industry exists in South Africa, mainly as a result of a general lack of empirical research into this field. The main purpose of this research project was to add to the knowledge about the nature of industrial social work practice in South Africa, and to contribute to an understanding of the forces influencing its development. In order to achieve this overall purpose, an extensive review of the existing literature was done with the aim of identifying and describing the present trends and issues in industrial social work thinking. This was combined with an empirical investigation into the practice of social workers presently employed in industry in South Africa. In addition to this, the attitude of industries not employing social workers was established with a view of determining factors influencing the further development of industrial social work. A third component of the empirical investigation consisted of a survey of the attitudes and knowledge of community welfare organisations regarding industrial social work practice. This was done in an effort to establish the amount of support for industrial social work from the rest of the profession. The findings of the empirical investigation indicated an emphasis on the individual employee as far as the practice of industrial social work is concerned - an EAP model thus. Industries not employing social workers still seem to need more education as far as the true nature of social work practice is concerned, and there seem to be a reserved acceptance of industrial social work practice amongst community welfare organisations, as well as a lack of knowledge. In conclusion it can be stated that the social work fraternity in South Africa should take more serious notice of occupational social work practice in South Africa in general, and of industrial social work practice in particular, mainly because of its importance to the worker.
- 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
The Viking
- Authors: Lewis, Colin A
- Date: 1992
- Language: English
- Type: text
- Identifier: vital:6706 , http://hdl.handle.net/10962/d1006742
- Full Text:
- Date Issued: 1992
- Authors: Lewis, Colin A
- Date: 1992
- Language: English
- Type: text
- Identifier: vital:6706 , http://hdl.handle.net/10962/d1006742
- Full Text:
- Date Issued: 1992
Transkei College of Education students' perceptions of fieldwork in geographical education
- Authors: Ngquba, Tokozile
- Date: 1992
- Subjects: Geography -- Fieldwork -- Study and teaching Teachers -- Training of -- South Africa -- Transkei
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1806 , http://hdl.handle.net/10962/d1003691
- Description: The understanding of geographical concepts and the development of skills requires the use of appropriate teaching strategies. Modern school geography incorporates a wealth of techniques and embraces a wide range of strategies which are directly suited to achieve the aims which are central to current geographical education. Techniques which directly involve the learner are perceived to be the most valuable. Of the many participatory strategies suited to the teaching of geography, fieldwork is accepted as the most worthwhile. This study investigates student teachers' perceptions of fieldwork in their college studies and as a teaching strategy. Extensive literature on fieldwork in geographical education was analysed. A survey was conducted to assess the student teachers' fieldwork experiences. The results reveal that fieldwork is neglected in Transkeian schools and Colleges of Education, despite the fact that it is required by school syllabuses, and the fact that in many areas suitable sites are readily accessible. Conclusions are drawn and recommendations made for the inclusion of fieldwork in geography courses at Transkei Colleges of Education.
- Full Text:
- Date Issued: 1992
- Authors: Ngquba, Tokozile
- Date: 1992
- Subjects: Geography -- Fieldwork -- Study and teaching Teachers -- Training of -- South Africa -- Transkei
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1806 , http://hdl.handle.net/10962/d1003691
- Description: The understanding of geographical concepts and the development of skills requires the use of appropriate teaching strategies. Modern school geography incorporates a wealth of techniques and embraces a wide range of strategies which are directly suited to achieve the aims which are central to current geographical education. Techniques which directly involve the learner are perceived to be the most valuable. Of the many participatory strategies suited to the teaching of geography, fieldwork is accepted as the most worthwhile. This study investigates student teachers' perceptions of fieldwork in their college studies and as a teaching strategy. Extensive literature on fieldwork in geographical education was analysed. A survey was conducted to assess the student teachers' fieldwork experiences. The results reveal that fieldwork is neglected in Transkeian schools and Colleges of Education, despite the fact that it is required by school syllabuses, and the fact that in many areas suitable sites are readily accessible. Conclusions are drawn and recommendations made for the inclusion of fieldwork in geography courses at Transkei Colleges of Education.
- Full Text:
- Date Issued: 1992
Power play and the changing face of English : inaugural lecture delivered at Rhodes University
- Authors: De Klerk, Vivian A
- Date: 1992
- Subjects: Sociolinguistics , Linguistic change , Language and languages -- Political aspects
- Language: English
- Type: Text
- Identifier: vital:616 , http://hdl.handle.net/10962/d1020685 , ISBN 0868102334
- Description: Inaugural lecture delivered at Rhodes University , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1992
- Authors: De Klerk, Vivian A
- Date: 1992
- Subjects: Sociolinguistics , Linguistic change , Language and languages -- Political aspects
- Language: English
- Type: Text
- Identifier: vital:616 , http://hdl.handle.net/10962/d1020685 , ISBN 0868102334
- Description: Inaugural lecture delivered at Rhodes University , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1992
The anatomy and ecophysiology of Mariscus congestus from three different habitats in the Albany and Bathurst districts of the Eastern Cape, investigated under field and laboratory conditions
- Authors: Sonnenberg, Bernd Jürgen
- Date: 1992
- Subjects: Cyperaceae -- South Africa , Plant anatomy , Plant physiology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4229 , http://hdl.handle.net/10962/d1003798 , Cyperaceae -- South Africa , Plant anatomy , Plant physiology
- Description: An investigation of the anatomy and gas exchange characteristics of Mariscus congestus in three different habitats was undertaken in order to establish whether M. congestus from the three different habitats displayed any ecotypic responses when placed in a new similar environment. It was hoped that the results of this investigation would yield evidence that would support the ecotype concept similar to the investigations of Milner and Hiesey (1964), Green (1969) and Slayter and Ferrar (1977). On the basis of the site leaf anatomy, M. congestus investigated at the coast (site 1) differed in many respects from the inland plants (sites 2 and 3). These differences suggest that the coastal plants may have undergone a slight ecotypic divergence from the inland plants. The anatomical investigation also suggested that the leaves of M. congestus from all three sites may either be C₄ NADP-ME or PCK and that all had typical Chlorocyperiod anatomy. The habitat microclimates at sites 1-3 had different light and water regimes. There were no significant differences between the 12 month temperature environments of the three sites. There was however, a minor difference between the coastal (high temperature) and the inland (lower temperature) sites. M. congestus at the three sites had significantly different CO₂ assimilation rates, transpiration and stomatal conductance in response to the differing habitat microclimates. The water use efficiency of the sites were however, similar. Site 1 attained the highest CO₂ assimilation rates, transpiration, stomatal conductance, and water use efficiency and site 3 the lowest. Under similar conditions the gas exchange data for the potted plants indicated that M. congestus from the different sites was typically C₄. The optimal photosynthetic temperatures of all the sites was above 30°C and they did not show significant inhibition of CO₂ assimilation by different oxygen concentrations. The results of the laboratory investigation of the potted plants suggested that the only site-specific (ecotypic) response of M. eongestus was the light intensity at which the plants from the different sites were light saturated. The light and temperature response of field plants under field conditions was not comparable to the light and temperature response of potted plants under laboratory conditions. This may have been due to the field results being obtained under differing water and soil nutrient regimes. The potted plants may also have had a reduced root mass compared to their field counterparts and the potted plants may have also have become root bound. Under field conditions the plants had differing light saturation points and optimal photosynthetic temperatures compared to the potted plants. This investigation thus did not support the hypothesis stated in this thesis. The data in this investigation thus may indicate that plants with as diverse habitats as Mariscus congestus that are removed from their natural habitats display rapid changes in gas exchange characteristics in response to their new microclimates, with few ecotypic physiological characteristics of the old habitat being retained.
- Full Text:
- Date Issued: 1992
- Authors: Sonnenberg, Bernd Jürgen
- Date: 1992
- Subjects: Cyperaceae -- South Africa , Plant anatomy , Plant physiology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4229 , http://hdl.handle.net/10962/d1003798 , Cyperaceae -- South Africa , Plant anatomy , Plant physiology
- Description: An investigation of the anatomy and gas exchange characteristics of Mariscus congestus in three different habitats was undertaken in order to establish whether M. congestus from the three different habitats displayed any ecotypic responses when placed in a new similar environment. It was hoped that the results of this investigation would yield evidence that would support the ecotype concept similar to the investigations of Milner and Hiesey (1964), Green (1969) and Slayter and Ferrar (1977). On the basis of the site leaf anatomy, M. congestus investigated at the coast (site 1) differed in many respects from the inland plants (sites 2 and 3). These differences suggest that the coastal plants may have undergone a slight ecotypic divergence from the inland plants. The anatomical investigation also suggested that the leaves of M. congestus from all three sites may either be C₄ NADP-ME or PCK and that all had typical Chlorocyperiod anatomy. The habitat microclimates at sites 1-3 had different light and water regimes. There were no significant differences between the 12 month temperature environments of the three sites. There was however, a minor difference between the coastal (high temperature) and the inland (lower temperature) sites. M. congestus at the three sites had significantly different CO₂ assimilation rates, transpiration and stomatal conductance in response to the differing habitat microclimates. The water use efficiency of the sites were however, similar. Site 1 attained the highest CO₂ assimilation rates, transpiration, stomatal conductance, and water use efficiency and site 3 the lowest. Under similar conditions the gas exchange data for the potted plants indicated that M. congestus from the different sites was typically C₄. The optimal photosynthetic temperatures of all the sites was above 30°C and they did not show significant inhibition of CO₂ assimilation by different oxygen concentrations. The results of the laboratory investigation of the potted plants suggested that the only site-specific (ecotypic) response of M. eongestus was the light intensity at which the plants from the different sites were light saturated. The light and temperature response of field plants under field conditions was not comparable to the light and temperature response of potted plants under laboratory conditions. This may have been due to the field results being obtained under differing water and soil nutrient regimes. The potted plants may also have had a reduced root mass compared to their field counterparts and the potted plants may have also have become root bound. Under field conditions the plants had differing light saturation points and optimal photosynthetic temperatures compared to the potted plants. This investigation thus did not support the hypothesis stated in this thesis. The data in this investigation thus may indicate that plants with as diverse habitats as Mariscus congestus that are removed from their natural habitats display rapid changes in gas exchange characteristics in response to their new microclimates, with few ecotypic physiological characteristics of the old habitat being retained.
- 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
Educational computing in secondary schools of the Cape Education Department: a research survey to assess computing facility acquisition and its utilization
- Authors: Bean, Pat
- Date: 1992
- Subjects: Education, Secondary -- South Africa -- Data processing Education, Secondary -- South Africa -- Computer network resources Computer-assisted instruction -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1505 , http://hdl.handle.net/10962/d1003387
- Description: Secondary schools under the jurisdiction of the Cape Education Department (CED) have, over the past 10 years, been acquiring computer equipment without a national policy on educational computing in South Africa, and within only broad parameters provided by their department. The aim of this study was to determine the present status of educational computing in these schools. A literature survey on educational computing was undertaken and a number of international and local 'computers-in-schools' initiatives were elucidated. A field survey, involving all CED secondary schools (239), was initiated by sending questionnaires to principals of these schools - a return rate of 89% was achieved. The results of the research revealed that most CED secondary schools have already acquired computer facilities. The role of pressure groups such as teachers, parents, business sector etc together with other factors that might have influenced schools in acquiring their computer facilities was also investigated. The investigation also revealed where and how these facilities are being utilised: most schools use their computers for administrative functions, with the computer-as-a-tool for teachers and pupils also fast gaining ground. Computer-assisted learning activities, where the computer is integrated with subject curricula, are however still limited. The extent of both teachers' formal training in educational computing and their familiarity with different software applications were also determined. Schools were also required to indicate the areas where they experience problems in getting teachers and pupils more involved in 'computers-in-education' activities. The present educational computing position in secondary schools of the CED will have to serve as a foundation for the department's CISR Project embarked upon in 1991.
- Full Text:
- Date Issued: 1992
- Authors: Bean, Pat
- Date: 1992
- Subjects: Education, Secondary -- South Africa -- Data processing Education, Secondary -- South Africa -- Computer network resources Computer-assisted instruction -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1505 , http://hdl.handle.net/10962/d1003387
- Description: Secondary schools under the jurisdiction of the Cape Education Department (CED) have, over the past 10 years, been acquiring computer equipment without a national policy on educational computing in South Africa, and within only broad parameters provided by their department. The aim of this study was to determine the present status of educational computing in these schools. A literature survey on educational computing was undertaken and a number of international and local 'computers-in-schools' initiatives were elucidated. A field survey, involving all CED secondary schools (239), was initiated by sending questionnaires to principals of these schools - a return rate of 89% was achieved. The results of the research revealed that most CED secondary schools have already acquired computer facilities. The role of pressure groups such as teachers, parents, business sector etc together with other factors that might have influenced schools in acquiring their computer facilities was also investigated. The investigation also revealed where and how these facilities are being utilised: most schools use their computers for administrative functions, with the computer-as-a-tool for teachers and pupils also fast gaining ground. Computer-assisted learning activities, where the computer is integrated with subject curricula, are however still limited. The extent of both teachers' formal training in educational computing and their familiarity with different software applications were also determined. Schools were also required to indicate the areas where they experience problems in getting teachers and pupils more involved in 'computers-in-education' activities. The present educational computing position in secondary schools of the CED will have to serve as a foundation for the department's CISR Project embarked upon in 1991.
- 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
Standardization of Raven's standard progressive matrices for secondary school African pupils in the Grahamstown region
- Authors: Vass, Vasili Arthur
- Date: 1992
- Subjects: Blacks -- Intelligence levels -- South Africa , Intelligence tests -- South Africa , Educational tests and measurements -- South Africa , Cognition and culture , Raven's Progressive Matrices
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3078 , http://hdl.handle.net/10962/d1002587 , Blacks -- Intelligence levels -- South Africa , Intelligence tests -- South Africa , Educational tests and measurements -- South Africa , Cognition and culture , Raven's Progressive Matrices
- Description: Arising out of a need, expressed by Clinical Psychologists in the Grahamstown region, for the fair assessment of secondary School African pupils, norms for the Raven's Standard Progressive Matrices (SPM) were established. Two methods of presentation were used, the first using the original instructions of John Raven translated into the students' first language of Xhosa, hence-forth referred to as the Alternate sample. The second method of presenting the instructions was adapted, to include the use of visual aids and active participation in the instruction phase of the test, hence-forth referred to as the Normative sample. In addition to the establishment of norms, the two methods of test presentation were investigated to see if the method of presentation had an effect on the results of the Raven's SPM. The population was drawn from the three African Secondary Schools in the Grahamstown municipality. The total population consisted of 3 232 students. Classes were randomly sampled across the three schools, with the average age of the Normative sample being 19.3 years. The sample consisted of 812 pupils, 711 in the Normative sample and 101 in the Alternate Sample. The following results and conclusions arose from the study: 1) Norms generated were considerably lower than previously established norms in similar studies. 2) t-Test results indicated that the method of test presentation on the Raven's SPM is important when assessing students that may be regarded as 'disadvantaged'. 3) Respondents scored significantly higher when the method of presenting the instructions ensured a greater understanding of the task demanded of the respondents. 4) The analyses of covariance indicate that male subjects score significantly higher than female subjects, and that there is a significant difference between the ages and educational standard, on the scores of the Raven's SPM. 5) The differences found contradict previous findings using the test, and question the cultural fairness of the test.
- Full Text:
- Date Issued: 1992
- Authors: Vass, Vasili Arthur
- Date: 1992
- Subjects: Blacks -- Intelligence levels -- South Africa , Intelligence tests -- South Africa , Educational tests and measurements -- South Africa , Cognition and culture , Raven's Progressive Matrices
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3078 , http://hdl.handle.net/10962/d1002587 , Blacks -- Intelligence levels -- South Africa , Intelligence tests -- South Africa , Educational tests and measurements -- South Africa , Cognition and culture , Raven's Progressive Matrices
- Description: Arising out of a need, expressed by Clinical Psychologists in the Grahamstown region, for the fair assessment of secondary School African pupils, norms for the Raven's Standard Progressive Matrices (SPM) were established. Two methods of presentation were used, the first using the original instructions of John Raven translated into the students' first language of Xhosa, hence-forth referred to as the Alternate sample. The second method of presenting the instructions was adapted, to include the use of visual aids and active participation in the instruction phase of the test, hence-forth referred to as the Normative sample. In addition to the establishment of norms, the two methods of test presentation were investigated to see if the method of presentation had an effect on the results of the Raven's SPM. The population was drawn from the three African Secondary Schools in the Grahamstown municipality. The total population consisted of 3 232 students. Classes were randomly sampled across the three schools, with the average age of the Normative sample being 19.3 years. The sample consisted of 812 pupils, 711 in the Normative sample and 101 in the Alternate Sample. The following results and conclusions arose from the study: 1) Norms generated were considerably lower than previously established norms in similar studies. 2) t-Test results indicated that the method of test presentation on the Raven's SPM is important when assessing students that may be regarded as 'disadvantaged'. 3) Respondents scored significantly higher when the method of presenting the instructions ensured a greater understanding of the task demanded of the respondents. 4) The analyses of covariance indicate that male subjects score significantly higher than female subjects, and that there is a significant difference between the ages and educational standard, on the scores of the Raven's SPM. 5) The differences found contradict previous findings using the test, and question the cultural fairness of the test.
- Full Text:
- Date Issued: 1992
Power play and the changing face of English
- Authors: De Klerk, Vivian A
- Date: 1992
- Language: English
- Type: Conference paper
- Identifier: vital:6126 , http://hdl.handle.net/10962/d1011599
- Full Text:
- Date Issued: 1992
- Authors: De Klerk, Vivian A
- Date: 1992
- Language: English
- Type: Conference paper
- Identifier: vital:6126 , http://hdl.handle.net/10962/d1011599
- Full Text:
- Date Issued: 1992
Analyzing communication flow and process placement in Linda programs on transputers
- De-Heer-Menlah, Frederick Kofi
- Authors: De-Heer-Menlah, Frederick Kofi
- Date: 1992 , 2012-11-28
- Subjects: LINDA (Computer system) , Transputers , Parallel programming (Computer science)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4675 , http://hdl.handle.net/10962/d1006698 , LINDA (Computer system) , Transputers , Parallel programming (Computer science)
- Description: With the evolution of parallel and distributed systems, users from diverse disciplines have looked to these systems as a solution to their ever increasing needs for computer processing resources. Because parallel processing systems currently require a high level of expertise to program, many researchers are investing effort into developing programming approaches which hide some of the difficulties of parallel programming from users. Linda, is one such parallel paradigm, which is intuitive to use, and which provides a high level decoupling between distributable components of parallel programs. In Linda, efficiency becomes a concern of the implementation rather than of the programmer. There is a substantial overhead in implementing Linda, an inherently shared memory model on a distributed system. This thesis describes the compile-time analysis of tuple space interactions which reduce the run-time matching costs, and permits the distributon of the tuple space data. A language independent module which partitions the tuple space data and suggests appropriate storage schemes for the partitions so as to optimise Linda operations is presented. The thesis also discusses hiding the network topology from the user by automatically allocating Linda processes and tuple space partitons to nodes in the network of transputers. This is done by introducing a fast placement algorithm developed for Linda. , KMBT_223
- Full Text:
- Date Issued: 1992
- Authors: De-Heer-Menlah, Frederick Kofi
- Date: 1992 , 2012-11-28
- Subjects: LINDA (Computer system) , Transputers , Parallel programming (Computer science)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4675 , http://hdl.handle.net/10962/d1006698 , LINDA (Computer system) , Transputers , Parallel programming (Computer science)
- Description: With the evolution of parallel and distributed systems, users from diverse disciplines have looked to these systems as a solution to their ever increasing needs for computer processing resources. Because parallel processing systems currently require a high level of expertise to program, many researchers are investing effort into developing programming approaches which hide some of the difficulties of parallel programming from users. Linda, is one such parallel paradigm, which is intuitive to use, and which provides a high level decoupling between distributable components of parallel programs. In Linda, efficiency becomes a concern of the implementation rather than of the programmer. There is a substantial overhead in implementing Linda, an inherently shared memory model on a distributed system. This thesis describes the compile-time analysis of tuple space interactions which reduce the run-time matching costs, and permits the distributon of the tuple space data. A language independent module which partitions the tuple space data and suggests appropriate storage schemes for the partitions so as to optimise Linda operations is presented. The thesis also discusses hiding the network topology from the user by automatically allocating Linda processes and tuple space partitons to nodes in the network of transputers. This is done by introducing a fast placement algorithm developed for Linda. , KMBT_223
- Full Text:
- Date Issued: 1992
A.P.A. Chubb's letter to Rhodes Museum Curator, dated 26 April 1992
- Date: 1992
- Subjects: Rhodes University College -- Buildings -- Photographs -- 1936-1938 Rhodes University College -- History -- Photographs -- 1936-1938 Rhodes University College -- Students -- Photographs -- 1936-1938
- Type: Image
- Identifier: http://hdl.handle.net/10962/13107 , vital:21804 , PIC/M 5945 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1992
- Date: 1992
- Subjects: Rhodes University College -- Buildings -- Photographs -- 1936-1938 Rhodes University College -- History -- Photographs -- 1936-1938 Rhodes University College -- Students -- Photographs -- 1936-1938
- Type: Image
- Identifier: http://hdl.handle.net/10962/13107 , vital:21804 , PIC/M 5945 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1992
Die sosio-ekonomiese opname as instrument vir die inisiëring van 'n ontwikkelingsproses in 'n landelike gemeenskap met spesifieke verwysing na Wartburg
- Rossouw, Anthonie Michael Müller
- Authors: Rossouw, Anthonie Michael Müller
- Date: 1992
- Subjects: Community development -- South Africa -- Wartburg Social service -- South Africa -- Wartburg Social service -- Research Rural poor -- South Africa
- Language: Afrikaans
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3280 , http://hdl.handle.net/10962/d1006475
- Description: Aim of this study. The problem of poverty, especially in rural S.A ., formed the basis for the questions and hypotheses posed in this study. Poverty stricken communities, with the accompanying suffering, the immobilizing effect of poverty and the present climate of urgent changes in S.A., were also apparent in Wartburg (study area). The problem was to initiate development in such a way that the chances of failure and therefore the wasting of already scarce resources is minimized. The manner in which development is initiated and what are viewed as desirable elements of development should culminate into achieving self-sustaining development in the long term. It became clear therefore that a complete data base needs to be established in order to initiate such a development process. In this study the aim was to investigate the role which research plays in the process of development. Method. This study can be divided into two sections, viz an investigation into the theoretical basis for achieving a self-sustaining process of development and how research should be done within such a process. Secondly, the practical application of such a theoretical basis was tested and forms the empirical section of this study. The first section was completed by undertaking a literature study. The conditions set for the development process guided the researcher increasingly to a holistic perspective, Community Development and the state of the art of Social Work Practice. The second part of this study was done through empirical research. The questionnaire method was utilized where structured interviews were conducted by properly trained field workers who were of similar cultural background as the community involved in the survey. The data was processed by using the B.M.D.P. programme and recorded in section B of this report. From section A and B of this report conclusions were drawn regarding the development process, the role research has in this process and the task of the Social Work Profession in this regard. Findings. From the theory it seemed that the state of the art regarding social Work Practice upholds a holistic perspective and views community practice and development as an important function within this perspective. It seems that a unitary approach to Social Work is increasingly becoming a reality in the pursuit of a holistic perspective as well as by stressing the importance of community practice. The integrated approach to Social Work Practice seems to collaborate with these views. The role of research is equally important to social Work Practice as it is to Community Development and should be viewed as an integral part of the Social Work Process/Practice. The empirical section of this study is a clear example of what can be achieved by a properly planned and executed research project which forms an integral part of a development process. Together with the community valuable data were drawn from the data base. These conclusions were directly employed to identify priorities and in planning specific projects. Conclusions. This study concludes, firstly, that Social Work Practice has an obvious task in the field of community development. This profession can contribute to a large extent toward making development more human and to acknowledge the importance of both man and his environment when considering development. The study also showed that research is an integral part of a development process, especially where the aim is that of a perpetuating, self-sustaining development process. In short, it seems that the Socio-economic research meets the requirements set by the aforementioned development process, but that refining seems necessary in order to make it more effective and useful as an instrument for initiating such a process of development as discussed in the above paragraphs.
- Full Text:
- Date Issued: 1992
- Authors: Rossouw, Anthonie Michael Müller
- Date: 1992
- Subjects: Community development -- South Africa -- Wartburg Social service -- South Africa -- Wartburg Social service -- Research Rural poor -- South Africa
- Language: Afrikaans
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3280 , http://hdl.handle.net/10962/d1006475
- Description: Aim of this study. The problem of poverty, especially in rural S.A ., formed the basis for the questions and hypotheses posed in this study. Poverty stricken communities, with the accompanying suffering, the immobilizing effect of poverty and the present climate of urgent changes in S.A., were also apparent in Wartburg (study area). The problem was to initiate development in such a way that the chances of failure and therefore the wasting of already scarce resources is minimized. The manner in which development is initiated and what are viewed as desirable elements of development should culminate into achieving self-sustaining development in the long term. It became clear therefore that a complete data base needs to be established in order to initiate such a development process. In this study the aim was to investigate the role which research plays in the process of development. Method. This study can be divided into two sections, viz an investigation into the theoretical basis for achieving a self-sustaining process of development and how research should be done within such a process. Secondly, the practical application of such a theoretical basis was tested and forms the empirical section of this study. The first section was completed by undertaking a literature study. The conditions set for the development process guided the researcher increasingly to a holistic perspective, Community Development and the state of the art of Social Work Practice. The second part of this study was done through empirical research. The questionnaire method was utilized where structured interviews were conducted by properly trained field workers who were of similar cultural background as the community involved in the survey. The data was processed by using the B.M.D.P. programme and recorded in section B of this report. From section A and B of this report conclusions were drawn regarding the development process, the role research has in this process and the task of the Social Work Profession in this regard. Findings. From the theory it seemed that the state of the art regarding social Work Practice upholds a holistic perspective and views community practice and development as an important function within this perspective. It seems that a unitary approach to Social Work is increasingly becoming a reality in the pursuit of a holistic perspective as well as by stressing the importance of community practice. The integrated approach to Social Work Practice seems to collaborate with these views. The role of research is equally important to social Work Practice as it is to Community Development and should be viewed as an integral part of the Social Work Process/Practice. The empirical section of this study is a clear example of what can be achieved by a properly planned and executed research project which forms an integral part of a development process. Together with the community valuable data were drawn from the data base. These conclusions were directly employed to identify priorities and in planning specific projects. Conclusions. This study concludes, firstly, that Social Work Practice has an obvious task in the field of community development. This profession can contribute to a large extent toward making development more human and to acknowledge the importance of both man and his environment when considering development. The study also showed that research is an integral part of a development process, especially where the aim is that of a perpetuating, self-sustaining development process. In short, it seems that the Socio-economic research meets the requirements set by the aforementioned development process, but that refining seems necessary in order to make it more effective and useful as an instrument for initiating such a process of development as discussed in the above paragraphs.
- Full Text:
- Date Issued: 1992
Ngalanga 4th movement
- Venancio Mbande and his Timbila players, Tracey, Andrew T N
- Authors: Venancio Mbande and his Timbila players , Tracey, Andrew T N
- Date: 1992
- Subjects: Chopi (African people) -- Music , Folk music -- South Africa , Xylophone (Musical instrument) , Drum (Musical instruments) , Sub-Saharan African music , Africa South Africa Wildebeesfontein f-za
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/98884 , vital:31638 , International Library of African Music, Rhodes University, Grahamstown, South Africa , ATC076a-04
- Description: Traditional Ngalanga dance song for young people with 3 Timbila xylophone and 3 drums accompaniment
- Full Text: false
- Date Issued: 1992
- Authors: Venancio Mbande and his Timbila players , Tracey, Andrew T N
- Date: 1992
- Subjects: Chopi (African people) -- Music , Folk music -- South Africa , Xylophone (Musical instrument) , Drum (Musical instruments) , Sub-Saharan African music , Africa South Africa Wildebeesfontein f-za
- Language: Chopi
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/98884 , vital:31638 , International Library of African Music, Rhodes University, Grahamstown, South Africa , ATC076a-04
- Description: Traditional Ngalanga dance song for young people with 3 Timbila xylophone and 3 drums accompaniment
- Full Text: false
- Date Issued: 1992
Phenology of the important coleopterous pests of pine forests in the Western Cape, South Africa
- Authors: Tribe, Geoffrey Darryl
- Date: 1992
- Subjects: Beetles -- South Africa Bark beetles -- South Africa -- Cape of Good Hope Scolytidae Phenology -- South Africa Phenology -- South Africa -- Cape of Good Hope
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5737 , http://hdl.handle.net/10962/d1005423
- Description: The phenology of the three exotic pine bark beetles present in South Africa was determined in the south-western Cape Province. Results from weekly trapping of adult beetles using trap-logs over a period of five years showed that the different species had activity peaks at different times of the year. Hylastes angustatus was the most consistent with 95% of the beetles captured in September and October. The Orthotomicus erosus activity peak was more variable but always occurred in the summer months (October to February) when 84% of the beetles were captured. Hylurgus ligniperda was the most variable, being found in every month of the year, although an autumn peak representing 37% of the beetles occurred in April/May. Activity peaks of each species coincided with distinct climatic conditions. Buried and partially-buried pine logs placed vertically in the soil to simulate roots and stems of seedlings were used to determine the colonisation sites of the three bark beetle species. Ninety-eight percent of O. erosus beetles were found in the protruding parts of the logs while 86% of H. ligniperda beetles were found mainly below soil level. H. angustatus were intermediate, entering the logs at or just below the soil interface but colonising mainly the buried parts in which 64% of the beetles were found. Both H. angustatus and H. ligniperda were able to detect and colonise logs buried horizontally at depths of 400mm, but O. erosus beetles were unable to do so. For adequate protection of seedlings from bark beetles, insecticide should be applied to both stems and roots. The phenology of the indigenous pine needle feeders Oosomus varius (Curculionidae) and Prasoidea sericea (Chrysomelidae) was determined by counting, at weekly intervals, the number of beetles present on 10 young pine trees. The O. varius activity peak occurred in August where 42% of all beetles were active, with 87% of the beetles present in July, August and September. P. sericea also had their activity peak in August when 60% of all beetles were active, but with August and September alone accounting for 87% of the beetles. The occurrence of the activity peaks was consistent each year over the five-year study period. This information facilitates the correct timing of prophylactic insecticide sprays.
- Full Text:
- Date Issued: 1992
- Authors: Tribe, Geoffrey Darryl
- Date: 1992
- Subjects: Beetles -- South Africa Bark beetles -- South Africa -- Cape of Good Hope Scolytidae Phenology -- South Africa Phenology -- South Africa -- Cape of Good Hope
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5737 , http://hdl.handle.net/10962/d1005423
- Description: The phenology of the three exotic pine bark beetles present in South Africa was determined in the south-western Cape Province. Results from weekly trapping of adult beetles using trap-logs over a period of five years showed that the different species had activity peaks at different times of the year. Hylastes angustatus was the most consistent with 95% of the beetles captured in September and October. The Orthotomicus erosus activity peak was more variable but always occurred in the summer months (October to February) when 84% of the beetles were captured. Hylurgus ligniperda was the most variable, being found in every month of the year, although an autumn peak representing 37% of the beetles occurred in April/May. Activity peaks of each species coincided with distinct climatic conditions. Buried and partially-buried pine logs placed vertically in the soil to simulate roots and stems of seedlings were used to determine the colonisation sites of the three bark beetle species. Ninety-eight percent of O. erosus beetles were found in the protruding parts of the logs while 86% of H. ligniperda beetles were found mainly below soil level. H. angustatus were intermediate, entering the logs at or just below the soil interface but colonising mainly the buried parts in which 64% of the beetles were found. Both H. angustatus and H. ligniperda were able to detect and colonise logs buried horizontally at depths of 400mm, but O. erosus beetles were unable to do so. For adequate protection of seedlings from bark beetles, insecticide should be applied to both stems and roots. The phenology of the indigenous pine needle feeders Oosomus varius (Curculionidae) and Prasoidea sericea (Chrysomelidae) was determined by counting, at weekly intervals, the number of beetles present on 10 young pine trees. The O. varius activity peak occurred in August where 42% of all beetles were active, with 87% of the beetles present in July, August and September. P. sericea also had their activity peak in August when 60% of all beetles were active, but with August and September alone accounting for 87% of the beetles. The occurrence of the activity peaks was consistent each year over the five-year study period. This information facilitates the correct timing of prophylactic insecticide sprays.
- Full Text:
- Date Issued: 1992