Tangentially symplectic foliations
- Authors: Remsing, Claudiu Cristian
- Date: 1994
- Subjects: Geometry Problems, exercises, etc Geometry, Differential Symplectic manifolds Poisson manifolds Foliations (Mathematics)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5419 , http://hdl.handle.net/10962/d1005233
- Description: This thesis is concerned principally with tangential geometry and the applications of these concepts to tangentially symplectic foliations. The subject of tangential geometry is still at an elementary stage. The author here systematises current concepts and results and extends them, leading to the definition of vertical connections and vertical G-structures. Tangentially symplectic foliations are then characterised in terms of vertical symplectic forms. Some significant particular cases are discussed.
- Full Text:
- Date Issued: 1994
- Authors: Remsing, Claudiu Cristian
- Date: 1994
- Subjects: Geometry Problems, exercises, etc Geometry, Differential Symplectic manifolds Poisson manifolds Foliations (Mathematics)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5419 , http://hdl.handle.net/10962/d1005233
- Description: This thesis is concerned principally with tangential geometry and the applications of these concepts to tangentially symplectic foliations. The subject of tangential geometry is still at an elementary stage. The author here systematises current concepts and results and extends them, leading to the definition of vertical connections and vertical G-structures. Tangentially symplectic foliations are then characterised in terms of vertical symplectic forms. Some significant particular cases are discussed.
- Full Text:
- Date Issued: 1994
Rhodes University Annual Report 1994
- Authors: Rhodes University
- Date: 1994
- Subjects: Rhodes University -- history Rhodes University -- employees Rhodes University -- students
- Language: English
- Identifier: vital:20049 , 0035-4678
- Full Text:
- Date Issued: 1994
- Authors: Rhodes University
- Date: 1994
- Subjects: Rhodes University -- history Rhodes University -- employees Rhodes University -- students
- Language: English
- Identifier: vital:20049 , 0035-4678
- Full Text:
- Date Issued: 1994
Rhodes University Graduation Ceremony 1994
- Authors: Rhodes University
- Date: 1994
- Language: English
- Type: text
- Identifier: vital:8128 , http://hdl.handle.net/10962/d1006753
- Description: Rhodes University Graduation Ceremonies Friday, 8 April 1994 at 10:30 a.m. [and] 08:15 p.m. [and] Saturday, 9 April 1994 at 10:30 a.m. in the 1820 Settlers National Monument. , Rhodes University East London Graduation Ceremony Saturday, 14 May 1994 at 11.00 a.m. in the Guild Theatre.
- Full Text:
- Date Issued: 1994
- Authors: Rhodes University
- Date: 1994
- Language: English
- Type: text
- Identifier: vital:8128 , http://hdl.handle.net/10962/d1006753
- Description: Rhodes University Graduation Ceremonies Friday, 8 April 1994 at 10:30 a.m. [and] 08:15 p.m. [and] Saturday, 9 April 1994 at 10:30 a.m. in the 1820 Settlers National Monument. , Rhodes University East London Graduation Ceremony Saturday, 14 May 1994 at 11.00 a.m. in the Guild Theatre.
- Full Text:
- Date Issued: 1994
The phytophagous insect community on the Veld Fig, Ficus Burtt-Davyi Hutch
- Authors: Ross, Sally Jane
- Date: 1994
- Subjects: Phytophagous insects -- South Africa , Phytophagous insects , Insect-plant relationships
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5739 , http://hdl.handle.net/10962/d1005425 , Phytophagous insects -- South Africa , Phytophagous insects , Insect-plant relationships
- Description: The quest for patterns in community organisation is a daunting task which may be made easier by concentrating on communities associated with a restricted range of resources and therefore of relative simplicity. Here, the phytophagous insect community on the African fig tree Ficus burtt-davyi Hutch. was studied in an attempt to gain some insight into the factors which influence the composition of insect herbivore communities at a very local level, on individual plants of one host species at a single location. The tree's phenological patterns were detennined, due to their relevance to herbivores, particularly those which are host-specific feeders. The trees exhibited inter-tree asynchrony and intra-tree synchrony in fruit crop initiation, whereas leaf production was synchronous both within and between trees. Sixteen frequently occurring phytophagous insect species fed on the 123 F. burtt-davyi trees in the study area over a period of one year. Factors with the potential to influence the composition of this community were investigated at levels of the whole community (species richness), the guild, and the individual species. At each 'level' the effects of the measured factors on fluctuations in community composition were investigated, both over time (i.e. temporally) and spatially from tree to tree. During the year the phytophage community was influenced largely by temperature, although rainfall and tree phenological changes did exert varying influences on the abundances of guilds and individual species. Tree to tree variation in species richness (and thus commensurately, in the frequencies of occurrence of guilds and individual species) was influenced primarily by tree architectural complexity. Architecturally more complex trees hosted a greater number of species, a relationship largely attributable to effects of passive sampling and within-tree microhabitat heterogeneity and/or the availability of living space. The distributions of the leaf and stem piercing species were strongly associated with the presence of ants and this relationship manifested itself within the community as a whole. The degree of isolation of trees had consequences for individual species and for overall species richness, with the numbers of species present decreasing as trees became more isolated. A detailed analysis of guild distributional patterns revealed that the most important influential factors were those also evident at the level of the whole community and that species within guilds were, on the whole, no more similar to one another with respect to their habitat preferences than species from different guilds. The grouping of species into functional units therefore threw no additional light on the way in which this community is organised. An analysis of possible interspecific interactions between all of the phytophagous species in the community revealed only positive associations, both between species within guilds and between those in different guilds. These were doubtless attributable to autocorrelation as a result of similar habitat preferences. Competition was therefore rejected as an organising force within the community.
- Full Text:
- Date Issued: 1994
- Authors: Ross, Sally Jane
- Date: 1994
- Subjects: Phytophagous insects -- South Africa , Phytophagous insects , Insect-plant relationships
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5739 , http://hdl.handle.net/10962/d1005425 , Phytophagous insects -- South Africa , Phytophagous insects , Insect-plant relationships
- Description: The quest for patterns in community organisation is a daunting task which may be made easier by concentrating on communities associated with a restricted range of resources and therefore of relative simplicity. Here, the phytophagous insect community on the African fig tree Ficus burtt-davyi Hutch. was studied in an attempt to gain some insight into the factors which influence the composition of insect herbivore communities at a very local level, on individual plants of one host species at a single location. The tree's phenological patterns were detennined, due to their relevance to herbivores, particularly those which are host-specific feeders. The trees exhibited inter-tree asynchrony and intra-tree synchrony in fruit crop initiation, whereas leaf production was synchronous both within and between trees. Sixteen frequently occurring phytophagous insect species fed on the 123 F. burtt-davyi trees in the study area over a period of one year. Factors with the potential to influence the composition of this community were investigated at levels of the whole community (species richness), the guild, and the individual species. At each 'level' the effects of the measured factors on fluctuations in community composition were investigated, both over time (i.e. temporally) and spatially from tree to tree. During the year the phytophage community was influenced largely by temperature, although rainfall and tree phenological changes did exert varying influences on the abundances of guilds and individual species. Tree to tree variation in species richness (and thus commensurately, in the frequencies of occurrence of guilds and individual species) was influenced primarily by tree architectural complexity. Architecturally more complex trees hosted a greater number of species, a relationship largely attributable to effects of passive sampling and within-tree microhabitat heterogeneity and/or the availability of living space. The distributions of the leaf and stem piercing species were strongly associated with the presence of ants and this relationship manifested itself within the community as a whole. The degree of isolation of trees had consequences for individual species and for overall species richness, with the numbers of species present decreasing as trees became more isolated. A detailed analysis of guild distributional patterns revealed that the most important influential factors were those also evident at the level of the whole community and that species within guilds were, on the whole, no more similar to one another with respect to their habitat preferences than species from different guilds. The grouping of species into functional units therefore threw no additional light on the way in which this community is organised. An analysis of possible interspecific interactions between all of the phytophagous species in the community revealed only positive associations, both between species within guilds and between those in different guilds. These were doubtless attributable to autocorrelation as a result of similar habitat preferences. Competition was therefore rejected as an organising force within the community.
- Full Text:
- Date Issued: 1994
The influence of the composition of mixed Karoo vegetation on the grazing habits of Merino and Dorper wethers
- Authors: Roux, Francis Augustus
- Date: 1994
- Subjects: Grazing -- South Africa -- Karoo , Sheep -- Feeding and feeds , Dorper sheep -- South Africa , Merino sheep -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4223 , http://hdl.handle.net/10962/d1003792 , Grazing -- South Africa -- Karoo , Sheep -- Feeding and feeds , Dorper sheep -- South Africa , Merino sheep -- South Africa
- Description: The primary objective of this research project was to determine whether area-selective grazing, by Dorper and Merino wethers, took place in small grazing camps as governed by differences in vegetal cover. The main research techniques employed were the descending-point method for the determination of botanical composition, sub-division of the camps into gridblocks to trace sheep movement in relation to vegetation patterning, fistulated animals to determine diet selection, the electronic theodolite for micro-topography, and few minor techniques. The result have shown that area- patch- and species selective grazing are prevalent in small grazing camps under "normal" stocking densities, and that different breeds of stock (Merino and Dorper sheep) have different grazing patterns and diet selection . Climax and sub-climax areas were those primarily select ed for grazing. There is little or no correlation between botanical composition and diet selected as per fistula ted animal. The average distances travelled by Dorpers and Merinos was 2 km / day and 3.1 km/day respectively. Plant phenology did not have a detectable influence in the choice of diet.
- Full Text:
- Date Issued: 1994
- Authors: Roux, Francis Augustus
- Date: 1994
- Subjects: Grazing -- South Africa -- Karoo , Sheep -- Feeding and feeds , Dorper sheep -- South Africa , Merino sheep -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4223 , http://hdl.handle.net/10962/d1003792 , Grazing -- South Africa -- Karoo , Sheep -- Feeding and feeds , Dorper sheep -- South Africa , Merino sheep -- South Africa
- Description: The primary objective of this research project was to determine whether area-selective grazing, by Dorper and Merino wethers, took place in small grazing camps as governed by differences in vegetal cover. The main research techniques employed were the descending-point method for the determination of botanical composition, sub-division of the camps into gridblocks to trace sheep movement in relation to vegetation patterning, fistulated animals to determine diet selection, the electronic theodolite for micro-topography, and few minor techniques. The result have shown that area- patch- and species selective grazing are prevalent in small grazing camps under "normal" stocking densities, and that different breeds of stock (Merino and Dorper sheep) have different grazing patterns and diet selection . Climax and sub-climax areas were those primarily select ed for grazing. There is little or no correlation between botanical composition and diet selected as per fistula ted animal. The average distances travelled by Dorpers and Merinos was 2 km / day and 3.1 km/day respectively. Plant phenology did not have a detectable influence in the choice of diet.
- Full Text:
- Date Issued: 1994
Up Beat Issue Number 4 1994
- SACHED
- Authors: SACHED
- Date: 1994
- Subjects: SACHED
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/115656 , vital:34211
- Description: Well, here we are, a month after the elections. Let us pray that everyone in our country will be able to put their differences behind them and work together to build a better South Africa. In this issue of Upbeat we speak to young people about the violence in Bophuthatswana before the elections. But there are also lots of fun stories for you to read. Meet Toni Braxton and find out more a sport that is taking over in South Africa - basketball. Finally there is a story about smoking and what it does to your body on page 12. If you are a beginner smoker, do the quiz at the end of the story and see if you really want to smoke.
- Full Text:
- Date Issued: 1994
- Authors: SACHED
- Date: 1994
- Subjects: SACHED
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/115656 , vital:34211
- Description: Well, here we are, a month after the elections. Let us pray that everyone in our country will be able to put their differences behind them and work together to build a better South Africa. In this issue of Upbeat we speak to young people about the violence in Bophuthatswana before the elections. But there are also lots of fun stories for you to read. Meet Toni Braxton and find out more a sport that is taking over in South Africa - basketball. Finally there is a story about smoking and what it does to your body on page 12. If you are a beginner smoker, do the quiz at the end of the story and see if you really want to smoke.
- Full Text:
- Date Issued: 1994
Up Beat Issue Number 3 1994
- SACHED
- Authors: SACHED
- Date: 1994
- Subjects: SACHED
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/115645 , vital:34210
- Description: This month millions of South Africans will vote for the first time in their lives. So if you want to know more about voting, there is lots of information for you on pages 4 and 5. If you are over 18, read it and find out what to do on election day. If you are under 18, read it and teach your parents, neighbours and friends. It is also important to know how the new government will work and who is in the new government. Read about it on page 6 and use the map on page 10 to follow the election results. Most young people we spoke to are worried about violence on the days of the election. Some political parties have decided not to take part. Remember that voting is a personal decision. If your party is not taking part in the elections, please let others vote in peace.
- Full Text:
- Date Issued: 1994
- Authors: SACHED
- Date: 1994
- Subjects: SACHED
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/115645 , vital:34210
- Description: This month millions of South Africans will vote for the first time in their lives. So if you want to know more about voting, there is lots of information for you on pages 4 and 5. If you are over 18, read it and find out what to do on election day. If you are under 18, read it and teach your parents, neighbours and friends. It is also important to know how the new government will work and who is in the new government. Read about it on page 6 and use the map on page 10 to follow the election results. Most young people we spoke to are worried about violence on the days of the election. Some political parties have decided not to take part. Remember that voting is a personal decision. If your party is not taking part in the elections, please let others vote in peace.
- Full Text:
- Date Issued: 1994
Conditions of service of SAMWU staff
- SAMWU
- Authors: SAMWU
- Date: 1994
- Subjects: SAMWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/178916 , vital:43019
- Description: This document is as adopted by the SAMWU NEC in November 1994. It serves to define the wages and conditions of employment applicable to all SAMWU staff and is the only conditions of employment document of the union. Employees who were staff of a pre-existing trade union which merged with SAMWU who have conditions which were previously declared personal to holder ( in terms of merger agreements ) are required to examine this document and to individually register where they, consider that their terms differ from this document. No improved condition hereby introduced can be taken to apply to such employees as a matter of right . They have a choice of registering specific conditions as ” personal to holder " or converting to the full set of conditions as contained herein. Where they register a condition as personal to holder the NEC will decide whether new conditions hereby introduced are also applicable to them. It is further recorded that whilst these conditions of service are open to be ammended from time to time ; as-the NEC may decide , any representations for amendments shall normally only be considered during the later part*of-each year.
- Full Text:
- Date Issued: 1994
- Authors: SAMWU
- Date: 1994
- Subjects: SAMWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/178916 , vital:43019
- Description: This document is as adopted by the SAMWU NEC in November 1994. It serves to define the wages and conditions of employment applicable to all SAMWU staff and is the only conditions of employment document of the union. Employees who were staff of a pre-existing trade union which merged with SAMWU who have conditions which were previously declared personal to holder ( in terms of merger agreements ) are required to examine this document and to individually register where they, consider that their terms differ from this document. No improved condition hereby introduced can be taken to apply to such employees as a matter of right . They have a choice of registering specific conditions as ” personal to holder " or converting to the full set of conditions as contained herein. Where they register a condition as personal to holder the NEC will decide whether new conditions hereby introduced are also applicable to them. It is further recorded that whilst these conditions of service are open to be ammended from time to time ; as-the NEC may decide , any representations for amendments shall normally only be considered during the later part*of-each year.
- Full Text:
- Date Issued: 1994
An ergonomic analysis of commercially available exercise equipment : implications for resistance training and clinical rehabilitation
- Authors: Scott, Stephen Bryce
- Date: 1994
- Subjects: Human engineering -- Case studies , Exercise -- Equipment and supplies -- Evaluation , Isometric exercise -- Evaluation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5172 , http://hdl.handle.net/10962/d1016367
- Description: This study examined the often contrived advertising claims of the manufacturers of variable resistance isotonic machinery. Specifically, the study sought to ascertain whether certain equipment was compatible with musculo-skeletal and perceptual needs and limitations of the human user: that is, to determine whether presently installed eccentric cams, which provide the variable resistance, matched the users force curves. The format of this research was in the ergonomic tradition in which empirical research is not necessarily the primary avenue. Consequently the inter-disciplinary nature of ergonomics required small-scale laboratory- simulation experiments to be conducted in a diverse range of disciplines such as physiology, psychology and biomechanics. It was found that on all five pieces of variable resistance machinery analysed, a mismatch between the force curves and the eccentric cams exist. The cams were redesigned accordingly. The metabolic cost of performing fixed-rate isoinertial lifts was moderate. The psychophysical analysis revealed that perceptual responses indicated that the work was classified as 'light' and only at 30% stress levels do local cues begin to dominate. Based on these findings it was concluded that manufacturers advertising claims in the instances analysed were not well-founded and that variable resistance isotonic machinery should only be used to develop muscular strength and endurance, and do not effectively serve as weight-loss devices.
- Full Text:
- Date Issued: 1994
- Authors: Scott, Stephen Bryce
- Date: 1994
- Subjects: Human engineering -- Case studies , Exercise -- Equipment and supplies -- Evaluation , Isometric exercise -- Evaluation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5172 , http://hdl.handle.net/10962/d1016367
- Description: This study examined the often contrived advertising claims of the manufacturers of variable resistance isotonic machinery. Specifically, the study sought to ascertain whether certain equipment was compatible with musculo-skeletal and perceptual needs and limitations of the human user: that is, to determine whether presently installed eccentric cams, which provide the variable resistance, matched the users force curves. The format of this research was in the ergonomic tradition in which empirical research is not necessarily the primary avenue. Consequently the inter-disciplinary nature of ergonomics required small-scale laboratory- simulation experiments to be conducted in a diverse range of disciplines such as physiology, psychology and biomechanics. It was found that on all five pieces of variable resistance machinery analysed, a mismatch between the force curves and the eccentric cams exist. The cams were redesigned accordingly. The metabolic cost of performing fixed-rate isoinertial lifts was moderate. The psychophysical analysis revealed that perceptual responses indicated that the work was classified as 'light' and only at 30% stress levels do local cues begin to dominate. Based on these findings it was concluded that manufacturers advertising claims in the instances analysed were not well-founded and that variable resistance isotonic machinery should only be used to develop muscular strength and endurance, and do not effectively serve as weight-loss devices.
- Full Text:
- Date Issued: 1994
Behavioural model debugging in Linda
- Authors: Sewry, David Andrew
- Date: 1994
- Subjects: LINDA (Computer system) Debugging in computer science
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4674 , http://hdl.handle.net/10962/d1006697
- Description: This thesis investigates event-based behavioural model debugging in Linda. A study is presented of the Linda parallel programming paradigm, its amenability to debugging, and a model for debugging Linda programs using Milner's CCS. In support of the construction of expected behaviour models, a Linda program specification language is proposed. A behaviour recognition engine that is based on such specifications is also discussed. It is shown that Linda's distinctive characteristics make it amenable to debugging without the usual problems associated with paraUel debuggers. Furthermore, it is shown that a behavioural model debugger, based on the proposed specification language, effectively exploits the debugging opportunity. The ideas developed in the thesis are demonstrated in an experimental Modula-2 Linda system.
- Full Text:
- Date Issued: 1994
- Authors: Sewry, David Andrew
- Date: 1994
- Subjects: LINDA (Computer system) Debugging in computer science
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4674 , http://hdl.handle.net/10962/d1006697
- Description: This thesis investigates event-based behavioural model debugging in Linda. A study is presented of the Linda parallel programming paradigm, its amenability to debugging, and a model for debugging Linda programs using Milner's CCS. In support of the construction of expected behaviour models, a Linda program specification language is proposed. A behaviour recognition engine that is based on such specifications is also discussed. It is shown that Linda's distinctive characteristics make it amenable to debugging without the usual problems associated with paraUel debuggers. Furthermore, it is shown that a behavioural model debugger, based on the proposed specification language, effectively exploits the debugging opportunity. The ideas developed in the thesis are demonstrated in an experimental Modula-2 Linda system.
- Full Text:
- Date Issued: 1994
Top of Howison's Poort, 4 km west of Grahamstown
- Authors: Skead, C J (Cuthbert John)
- Date: 1994
- Subjects: Senecio -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12245 , http://hdl.handle.net/10962/d1013626
- Description: Dense stand of Senecio weed growth after a burn. Had a good preceding season.
- Full Text: false
- Date Issued: 1994
- Authors: Skead, C J (Cuthbert John)
- Date: 1994
- Subjects: Senecio -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12245 , http://hdl.handle.net/10962/d1013626
- Description: Dense stand of Senecio weed growth after a burn. Had a good preceding season.
- Full Text: false
- Date Issued: 1994
Mount Misery between Coldspring and Atherstone, 10 km west of Grahamstown
- Authors: Skead, C J (Cuthbert John)
- Date: 1994
- Subjects: Oldenburgia arbuscula -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12246 , http://hdl.handle.net/10962/d1013627
- Description: Fine stand of Oldenburgia arbuscula on west slope. A denser stand crowned Mt. Misery instead before removal to accommodate a telephone-relay tower there in 1980's.
- Full Text: false
- Date Issued: 1994
- Authors: Skead, C J (Cuthbert John)
- Date: 1994
- Subjects: Oldenburgia arbuscula -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12246 , http://hdl.handle.net/10962/d1013627
- Description: Fine stand of Oldenburgia arbuscula on west slope. A denser stand crowned Mt. Misery instead before removal to accommodate a telephone-relay tower there in 1980's.
- Full Text: false
- Date Issued: 1994
Direct experience of God in contemporary theology
- Authors: Slater, Jennifer
- Date: 1994
- Subjects: Rahner, Karl, 1904-1984 -- Criticism and interpretation , Merton, Thomas, 1915-1968 -- Criticism and interpretation , Kelsey, Morton T. -- Criticism and interpretation , Fox, Matthew, -- 1940- -- Criticism and interpretation , Gutiérrez, Gustavo, 1928- -- Criticism and interpretation , God -- Knowableness , Experience (Religion) , God -- History of doctrines -- 20th century
- Language: English
- Type: Thesis , Masters , MTh
- Identifier: vital:1303 , http://hdl.handle.net/10962/d1016265
- Description: 'Direct experience of God' is a term frequently used by theologians without adequate clarification regarding its meaning. The understanding thereof has become increasingly complicated by the process of secularization. In the 1960's, it was repeatedly asserted that modern people could not have direct experiences of God, albeit that one could still live by faith and by commitment to the way of Jesus in a world in which, it was asserted, "God is dead". This claim, although long predominant, has been challenged by the upsurge of interest in mysticism, both Eastern and Western, and the burgeoning of Pentecostalism and the Charismatic movement, in which circles direct experience of God was frequently claimed. If direct experience of God is something natural to humanity, interpretation of it will vary in exactly the same way as interpretation of all other human experiences. This could be a possible reason for it being so very poorly integrated into everyday life, resulting in the loss of meaning and value.
- Full Text:
- Date Issued: 1994
- Authors: Slater, Jennifer
- Date: 1994
- Subjects: Rahner, Karl, 1904-1984 -- Criticism and interpretation , Merton, Thomas, 1915-1968 -- Criticism and interpretation , Kelsey, Morton T. -- Criticism and interpretation , Fox, Matthew, -- 1940- -- Criticism and interpretation , Gutiérrez, Gustavo, 1928- -- Criticism and interpretation , God -- Knowableness , Experience (Religion) , God -- History of doctrines -- 20th century
- Language: English
- Type: Thesis , Masters , MTh
- Identifier: vital:1303 , http://hdl.handle.net/10962/d1016265
- Description: 'Direct experience of God' is a term frequently used by theologians without adequate clarification regarding its meaning. The understanding thereof has become increasingly complicated by the process of secularization. In the 1960's, it was repeatedly asserted that modern people could not have direct experiences of God, albeit that one could still live by faith and by commitment to the way of Jesus in a world in which, it was asserted, "God is dead". This claim, although long predominant, has been challenged by the upsurge of interest in mysticism, both Eastern and Western, and the burgeoning of Pentecostalism and the Charismatic movement, in which circles direct experience of God was frequently claimed. If direct experience of God is something natural to humanity, interpretation of it will vary in exactly the same way as interpretation of all other human experiences. This could be a possible reason for it being so very poorly integrated into everyday life, resulting in the loss of meaning and value.
- Full Text:
- Date Issued: 1994
In vitro release of propranolol hydrochloride from topical vehicles
- Smith, Eric W, Haigh, John M
- Authors: Smith, Eric W , Haigh, John M
- Date: 1994
- Language: English
- Type: text , Article
- Identifier: vital:6435 , http://hdl.handle.net/10962/d1006612
- Description: Transdermal drug delivery is becoming increasingly important and for this reason it is clear that academia must ensure that current graduates are knowledgeable in all facets of topical drug administration. An in vitro diffusion cell experiment was designed to demonstrate the rate of release of propranolol hydrochloride (PHC) from three different topical vehicles: (i) an oil-in-water cream; (ii) a gel; and (iii) anointment. This experiment was performed by final-year students enroled in an undergraduate course on percutaneous absorption. In vitro release of PHC from the three bases to an aqueous receptor phase through silicone membrane was monitored spectrophotometrically at a wavelength of 290 nm. By monitoring and attempting to explain the numerous possible reasons for the different rates of drug release from the three vehicles, it was hoped that the students would gain a better understanding of the complexities of transdermal drug administration. Overall, the experiment would appear to be a good model for student investigation into factors affecting the release of drugs from topical formulations.
- Full Text:
- Date Issued: 1994
- Authors: Smith, Eric W , Haigh, John M
- Date: 1994
- Language: English
- Type: text , Article
- Identifier: vital:6435 , http://hdl.handle.net/10962/d1006612
- Description: Transdermal drug delivery is becoming increasingly important and for this reason it is clear that academia must ensure that current graduates are knowledgeable in all facets of topical drug administration. An in vitro diffusion cell experiment was designed to demonstrate the rate of release of propranolol hydrochloride (PHC) from three different topical vehicles: (i) an oil-in-water cream; (ii) a gel; and (iii) anointment. This experiment was performed by final-year students enroled in an undergraduate course on percutaneous absorption. In vitro release of PHC from the three bases to an aqueous receptor phase through silicone membrane was monitored spectrophotometrically at a wavelength of 290 nm. By monitoring and attempting to explain the numerous possible reasons for the different rates of drug release from the three vehicles, it was hoped that the students would gain a better understanding of the complexities of transdermal drug administration. Overall, the experiment would appear to be a good model for student investigation into factors affecting the release of drugs from topical formulations.
- Full Text:
- Date Issued: 1994
The South African elections of 1994: the remaking of a dominant-party state
- Authors: Southall, R
- Date: 1994
- Language: English
- Type: Article
- Identifier: vital:6197 , http://hdl.handle.net/10962/d1008561
- Description: The South African elections of 1994 constituted one of those rare historical moments when humankind made a significant step forward. The peaceful culmination of a liberation struggle, which for years many had feared would end in a bloodbath, registered not only a triumph for the democratic ideal but the resounding defeat of racism as an organising principle of government. If its more recent reference point was the collapse of dictatorial régimes throughout Eastern Europe during 1989–90, it can more distantly be identified as following in the grand tradition of 1789, confirming and extending and elaborating the ‘rights of man’. Yet historical ‘progress’ rarely unfolds in an uncomplicated way, and — however momentous and however much the external world may be willing it to succeed — South Africa's new democracy, by fairly general agreement, faces daunting tasks.
- Full Text:
- Date Issued: 1994
- Authors: Southall, R
- Date: 1994
- Language: English
- Type: Article
- Identifier: vital:6197 , http://hdl.handle.net/10962/d1008561
- Description: The South African elections of 1994 constituted one of those rare historical moments when humankind made a significant step forward. The peaceful culmination of a liberation struggle, which for years many had feared would end in a bloodbath, registered not only a triumph for the democratic ideal but the resounding defeat of racism as an organising principle of government. If its more recent reference point was the collapse of dictatorial régimes throughout Eastern Europe during 1989–90, it can more distantly be identified as following in the grand tradition of 1789, confirming and extending and elaborating the ‘rights of man’. Yet historical ‘progress’ rarely unfolds in an uncomplicated way, and — however momentous and however much the external world may be willing it to succeed — South Africa's new democracy, by fairly general agreement, faces daunting tasks.
- Full Text:
- Date Issued: 1994
Metabolic responses to in vitro zinc supplementation
- Authors: Steel, Helen Carolyn
- Date: 1994
- Subjects: Zinc in the body , Zinc -- Physiological effect , Cancer -- Research
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4040 , http://hdl.handle.net/10962/d1004101 , Zinc in the body , Zinc -- Physiological effect , Cancer -- Research
- Description: The present study was carried out to determine the effects and possible mechanism of action of zinc supplementation on the in vitro growth of malignant murine melanoma (B16) and non-malignant monkey kidney (LLCMK) cells. Cell culture studies showed that zinc supplementation significantly inhibited B16 growth at all the concentrations studied (1, 3, 5 and lOμg/ml). Zinc was also found to inhibit the growth of the LLCMK cells, although to a lesser extent than the B16 cells. Possible evidence of mobilisation of the essential fatty acids from the membrane phospholipid stores was noted in both cell types. This effect was, however, greater in the B16 cells. Δ⁶-desaturase activity was found to be significantly lower in the B16 cells than in the LLCMK cells (p ≥ 0.05). Zinc supplementation resulted in an increase in the enzymes activity in the LLCMK cells and, at high concentrations, in the B16 cells. An estimation of elongase and Δ⁶-desaturase activity with zinc supplementation indicated that zinc had little or no effect on the activity of these enzymes. B16 cells were found to have higher levels of free radicals than the LLCMK cells. Zinc supplementation resulted in increased free radical formation in the B16 cells, while no effect was observed in the LLCMK cells. Lipid peroxidation increased in both cell types with increased zinc concentrations. The observed effect of zinc supplementation on cell growth may involve these elevated levels of lipid peroxides. CycIo-oxygenase activity was found to be greater in the B16 cells than the LLCMK cells. The activity of the enzyme increased with higher concentrations of zinc (lOμg/ml) in both cell types. Prostaglandin E, levels were found to be lower in the B16 cells compared to the LLCMK cells. The levels of prostaglandin E, in both cell types appeared to be dependent on the levels of the polyunsaturated fatty acid precursors to the prostaglandins. Zinc was found to inhibit the activity of the enzyme adenylate cyclase in both cell types. The cAMP levels in the LLCMK cells were also found to decrease with zinc supplementation. In the case of the B16 cells, cAMP levels increased at low concentrations of zinc despite a decrease in adenyl ate cyclase activity, suggesting a possible inhibition of cAMP phosphodiesterase activity at these concentrations of zinc. It is concluded that although zinc supplementation does have an effect on cell growth, this effect is not mediated through the activation of adenylate cyclase by the prostaglandins resulting in elevated levels of cAMP. A possible mechanism involving lipid peroxidation is proposed.
- Full Text:
- Date Issued: 1994
- Authors: Steel, Helen Carolyn
- Date: 1994
- Subjects: Zinc in the body , Zinc -- Physiological effect , Cancer -- Research
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4040 , http://hdl.handle.net/10962/d1004101 , Zinc in the body , Zinc -- Physiological effect , Cancer -- Research
- Description: The present study was carried out to determine the effects and possible mechanism of action of zinc supplementation on the in vitro growth of malignant murine melanoma (B16) and non-malignant monkey kidney (LLCMK) cells. Cell culture studies showed that zinc supplementation significantly inhibited B16 growth at all the concentrations studied (1, 3, 5 and lOμg/ml). Zinc was also found to inhibit the growth of the LLCMK cells, although to a lesser extent than the B16 cells. Possible evidence of mobilisation of the essential fatty acids from the membrane phospholipid stores was noted in both cell types. This effect was, however, greater in the B16 cells. Δ⁶-desaturase activity was found to be significantly lower in the B16 cells than in the LLCMK cells (p ≥ 0.05). Zinc supplementation resulted in an increase in the enzymes activity in the LLCMK cells and, at high concentrations, in the B16 cells. An estimation of elongase and Δ⁶-desaturase activity with zinc supplementation indicated that zinc had little or no effect on the activity of these enzymes. B16 cells were found to have higher levels of free radicals than the LLCMK cells. Zinc supplementation resulted in increased free radical formation in the B16 cells, while no effect was observed in the LLCMK cells. Lipid peroxidation increased in both cell types with increased zinc concentrations. The observed effect of zinc supplementation on cell growth may involve these elevated levels of lipid peroxides. CycIo-oxygenase activity was found to be greater in the B16 cells than the LLCMK cells. The activity of the enzyme increased with higher concentrations of zinc (lOμg/ml) in both cell types. Prostaglandin E, levels were found to be lower in the B16 cells compared to the LLCMK cells. The levels of prostaglandin E, in both cell types appeared to be dependent on the levels of the polyunsaturated fatty acid precursors to the prostaglandins. Zinc was found to inhibit the activity of the enzyme adenylate cyclase in both cell types. The cAMP levels in the LLCMK cells were also found to decrease with zinc supplementation. In the case of the B16 cells, cAMP levels increased at low concentrations of zinc despite a decrease in adenyl ate cyclase activity, suggesting a possible inhibition of cAMP phosphodiesterase activity at these concentrations of zinc. It is concluded that although zinc supplementation does have an effect on cell growth, this effect is not mediated through the activation of adenylate cyclase by the prostaglandins resulting in elevated levels of cAMP. A possible mechanism involving lipid peroxidation is proposed.
- Full Text:
- Date Issued: 1994
The petrography, mineral chemistry and isotope geochemistry of a mantle xenolith suite from the Letlhakane DK 1 and DK 2 kimberlite pipes, Botswana
- Authors: Stiefenhofer, Johann
- Date: 1994
- Subjects: Geochemistry Isotope geology Kimberlite Kimberlite -- Botswana
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4988 , http://hdl.handle.net/10962/d1005600
- Full Text:
- Date Issued: 1994
- Authors: Stiefenhofer, Johann
- Date: 1994
- Subjects: Geochemistry Isotope geology Kimberlite Kimberlite -- Botswana
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4988 , http://hdl.handle.net/10962/d1005600
- Full Text:
- Date Issued: 1994
Nutrient supplementation and secondary metaolites in melanoma cells
- Authors: Stoll, Karin Elisabeth
- Date: 1994
- Subjects: Vitamin C -- Therapeutic use Cancer -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4049 , http://hdl.handle.net/10962/d1004110
- Description: Considerable interest exists with regard to the putative therapeutic role of ascorbic acid in various conditions. A condition which has received much attention is cancer, as it is reported that ascorbic acid may be a prophylactic against cancer development. However, the actual involvement of ascorbic acid, an oxidizing/reducing agent, in the development and progression of tumours is presently a subject of much speculation. This study initially addressed the effect of ascorbic acid supplementation over a nutritional concentration range (0 - 100 μg/ml) on the in vitro growth of non-malignant LLCMK and malignant B16 cells. Ascorbic acid supplementation of these two cell types resulted in an overall decrease in the growth of both types of cells. The actual inhibitory mechanism of ascorbic acid on cell growth was not clear. Further study attempted to define and explain a mechanism responsible for this effect. Ascorbic acid has a role in the maintenance of tissue integrity and host defences, thus providing a rational basis for examining its relationship to cancer. Ascorbic acid is lcnown to be essential for the structural integrity of the intercellular matrix of the cells, the latter being a complex aqueous gel containing, amongst other compounds, fats and prostaglandins. Fats and prostaglandins have diverse effects on. membrane stability, enzyme activity and secondary messengers within cells. Hence, this study investigated the effect of ascorbic acid supplementation on certain enzymes and secondary metabolites within the cells, which had the potential to be involved in the control of cell growth. Throughout this study, emphasis was placed on the Bl6 melanoma cells as ascorbic acid supplementation did not significantly affect levels of secondary metabolites within the non-malignant LLCMK cells. Ascorbic acid supplementation of the B16 cells resulted in significant increases in adenylate cyclase activity and cyclic adenosine monophosphate levels, witb a significant decrease in Bl6 cell growth in that particular experiment. As cyclic adenosine monophosphate has a regulatory role in the cell cycle, this study suggested that the inhibitory effect of ascorbic acid supplementation on cell growth was mediated tbrough a final effect provided by the second messenger, cyclic adenosine monophosphate. However, clarification of tbe mechanism of tbe effect of ascorbic acid on adenylate cyclase activity was required. Hence, a further study investigated prostaglandin E₂ levels, as tbese affect adenylate cyclase activity. Prostaglandin E₂ levels were also found to be inversely related to Bl6 cell growth with ascorbic acid supplementation. It thus appeared tbat adenylate cyclase activity was dependent on prostaglandin E₂ levels in the B16 cells, and further study showed that tbis was indeed the case. Here, higher levels of prostaglandin E₂ supplementation of the Bl6 cells inhibited cell growth significantly and also significantly increased adenylate cyclase activity. Arachidonic acid is the precursor of prostaglandin E₂. In the presence of ascorbic acid supplementation, the percentage arachidonic acid composition of the Bl6 cells was inversely correlated with cell growth. Hence, prostaglandin E₂ levels in ascorbic acid supplemented B16 cells appeared dependent on tbe amount of precursor present. This was confirmed when Bl6 cells were supplemented with arachidonic acid. The latter had an inhibitory effect on Bl6 cell growth and also stimulated prostaglandin E₂ production. The cause of tbe inverse relationship between B16 cell growth and arachidonic acid composition with ascorbic acid supplementation was furtber investigated and found to be dependent on tbe uptake of arachidonic acid and other essential fatty acids from tbe medium. The enzymes phospholipase A₂ delta-5 and delta-6-desaturase, and elongase which could influence arachidonic acid levels were not affected to any extent by ascorbic acid supplementation and therefore did not influence the inverse relationship between B16 cell growth and arachidonic acid. Hence, it can be concluded that the effect of ascorbic acid supplementation on the BI6 cells is mediated, in part at least, by cyclic adenosine monophosphate. However, this is not the result of a direct effect of ascorbic acid supplementation. The initial effect of ascorbic acid supplementation concerns fatty acid - in particular arachidonic acid - uptake from the medium, with subsequent cascade effects On secondary metabolites, ultimately affecting the cellular levels of cyclic adenosine monophosphate.
- Full Text:
- Date Issued: 1994
- Authors: Stoll, Karin Elisabeth
- Date: 1994
- Subjects: Vitamin C -- Therapeutic use Cancer -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4049 , http://hdl.handle.net/10962/d1004110
- Description: Considerable interest exists with regard to the putative therapeutic role of ascorbic acid in various conditions. A condition which has received much attention is cancer, as it is reported that ascorbic acid may be a prophylactic against cancer development. However, the actual involvement of ascorbic acid, an oxidizing/reducing agent, in the development and progression of tumours is presently a subject of much speculation. This study initially addressed the effect of ascorbic acid supplementation over a nutritional concentration range (0 - 100 μg/ml) on the in vitro growth of non-malignant LLCMK and malignant B16 cells. Ascorbic acid supplementation of these two cell types resulted in an overall decrease in the growth of both types of cells. The actual inhibitory mechanism of ascorbic acid on cell growth was not clear. Further study attempted to define and explain a mechanism responsible for this effect. Ascorbic acid has a role in the maintenance of tissue integrity and host defences, thus providing a rational basis for examining its relationship to cancer. Ascorbic acid is lcnown to be essential for the structural integrity of the intercellular matrix of the cells, the latter being a complex aqueous gel containing, amongst other compounds, fats and prostaglandins. Fats and prostaglandins have diverse effects on. membrane stability, enzyme activity and secondary messengers within cells. Hence, this study investigated the effect of ascorbic acid supplementation on certain enzymes and secondary metabolites within the cells, which had the potential to be involved in the control of cell growth. Throughout this study, emphasis was placed on the Bl6 melanoma cells as ascorbic acid supplementation did not significantly affect levels of secondary metabolites within the non-malignant LLCMK cells. Ascorbic acid supplementation of the B16 cells resulted in significant increases in adenylate cyclase activity and cyclic adenosine monophosphate levels, witb a significant decrease in Bl6 cell growth in that particular experiment. As cyclic adenosine monophosphate has a regulatory role in the cell cycle, this study suggested that the inhibitory effect of ascorbic acid supplementation on cell growth was mediated tbrough a final effect provided by the second messenger, cyclic adenosine monophosphate. However, clarification of tbe mechanism of tbe effect of ascorbic acid on adenylate cyclase activity was required. Hence, a further study investigated prostaglandin E₂ levels, as tbese affect adenylate cyclase activity. Prostaglandin E₂ levels were also found to be inversely related to Bl6 cell growth with ascorbic acid supplementation. It thus appeared tbat adenylate cyclase activity was dependent on prostaglandin E₂ levels in the B16 cells, and further study showed that tbis was indeed the case. Here, higher levels of prostaglandin E₂ supplementation of the Bl6 cells inhibited cell growth significantly and also significantly increased adenylate cyclase activity. Arachidonic acid is the precursor of prostaglandin E₂. In the presence of ascorbic acid supplementation, the percentage arachidonic acid composition of the Bl6 cells was inversely correlated with cell growth. Hence, prostaglandin E₂ levels in ascorbic acid supplemented B16 cells appeared dependent on tbe amount of precursor present. This was confirmed when Bl6 cells were supplemented with arachidonic acid. The latter had an inhibitory effect on Bl6 cell growth and also stimulated prostaglandin E₂ production. The cause of tbe inverse relationship between B16 cell growth and arachidonic acid composition with ascorbic acid supplementation was furtber investigated and found to be dependent on tbe uptake of arachidonic acid and other essential fatty acids from tbe medium. The enzymes phospholipase A₂ delta-5 and delta-6-desaturase, and elongase which could influence arachidonic acid levels were not affected to any extent by ascorbic acid supplementation and therefore did not influence the inverse relationship between B16 cell growth and arachidonic acid. Hence, it can be concluded that the effect of ascorbic acid supplementation on the BI6 cells is mediated, in part at least, by cyclic adenosine monophosphate. However, this is not the result of a direct effect of ascorbic acid supplementation. The initial effect of ascorbic acid supplementation concerns fatty acid - in particular arachidonic acid - uptake from the medium, with subsequent cascade effects On secondary metabolites, ultimately affecting the cellular levels of cyclic adenosine monophosphate.
- Full Text:
- Date Issued: 1994
The meaning of work in a developing society a rural South African study
- Authors: Sully, Preis Max
- Date: 1994
- Subjects: Work -- Psychological aspects Ciskei (South Africa) -- Rural conditions Keiskammahoek (South Africa) -- Social conditions
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3066 , http://hdl.handle.net/10962/d1002575
- Description: The primary aim of this thesis is to explore, at a psychological level, the meaning of work in a rural developing society context. Additional aims comprise: the examination of distinctions in the meaning of work between different occupational niches; and the development of an appropriate conceptual and methodological approach for understanding meaning of work issues in developing society contexts. The research was conducted in the Keiskammahoek district situated in Ciskei, a South African homeland area. Demographically, the area comprises farms, small rural villages and one small town. It has traditionally fulfilled the role of a labour reserve, and the local economy largely depends on income generated through migrant labour. The population predominantly comprises indigenous Xhosa speakers, although a few whites, individuals of mixed racial origin and other ethnic groups are represented. In order to accommodate the diversity of work experience in rural society, an approach was adopted which relied on the participants' subjective definition of work. A conscious attempt was made to avoid defining work exclusively as remunerated employment. At a metatheoretical level, the meaning of work model used is grounded in Kelly's (1955) Personal Construct Theory. It comprises three facets, namely process, context and content. A multiple case study analysis was carried design was used, through to a in which nomothetic idiographic level of understanding. The primary' research instrument comprised an interview, in which data was derived from life-history material, a repertory grid, and focused interview questions. In the development of case studies, a process of triangulation was used to link the three sources of data. The thesis explores the relationship between participants and their work in several ways. First, it looks at how work and non-work are constituted and related to one another, and at how personally valuable work is contrasted to less valuable work. Second, it explores the relationship between the individual's orientation to work and their life and occupational context. Finally, it discusses the proposal that work meanings change and evolve with the development of the individual, and with shifts in social and historical circumstance.
- Full Text:
- Date Issued: 1994
- Authors: Sully, Preis Max
- Date: 1994
- Subjects: Work -- Psychological aspects Ciskei (South Africa) -- Rural conditions Keiskammahoek (South Africa) -- Social conditions
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3066 , http://hdl.handle.net/10962/d1002575
- Description: The primary aim of this thesis is to explore, at a psychological level, the meaning of work in a rural developing society context. Additional aims comprise: the examination of distinctions in the meaning of work between different occupational niches; and the development of an appropriate conceptual and methodological approach for understanding meaning of work issues in developing society contexts. The research was conducted in the Keiskammahoek district situated in Ciskei, a South African homeland area. Demographically, the area comprises farms, small rural villages and one small town. It has traditionally fulfilled the role of a labour reserve, and the local economy largely depends on income generated through migrant labour. The population predominantly comprises indigenous Xhosa speakers, although a few whites, individuals of mixed racial origin and other ethnic groups are represented. In order to accommodate the diversity of work experience in rural society, an approach was adopted which relied on the participants' subjective definition of work. A conscious attempt was made to avoid defining work exclusively as remunerated employment. At a metatheoretical level, the meaning of work model used is grounded in Kelly's (1955) Personal Construct Theory. It comprises three facets, namely process, context and content. A multiple case study analysis was carried design was used, through to a in which nomothetic idiographic level of understanding. The primary' research instrument comprised an interview, in which data was derived from life-history material, a repertory grid, and focused interview questions. In the development of case studies, a process of triangulation was used to link the three sources of data. The thesis explores the relationship between participants and their work in several ways. First, it looks at how work and non-work are constituted and related to one another, and at how personally valuable work is contrasted to less valuable work. Second, it explores the relationship between the individual's orientation to work and their life and occupational context. Finally, it discusses the proposal that work meanings change and evolve with the development of the individual, and with shifts in social and historical circumstance.
- Full Text:
- Date Issued: 1994
Local government and coloured residential segregation in Port Elizabeth, 1964-1976
- Authors: Taylor, Beverley J
- Date: 1994
- Language: English
- Type: text , article
- Identifier: vital:7108 , https://doi.org/10.1080/03736245.1994.9713566 , http://hdl.handle.net/10962/d1010736
- Description: preprint , Studies of racial territorial segregation affecting the coloured population in Port Elizabeth tend to perceive it as an outcome of a power struggle between central and local government over the implementation of apartheid legislation. This paper explores the underlying economic forces on the local government to bring about residential segregation and address the coloured housing crisis in the city. It is proposed that whereas central government motives for segregation were primarily political, local government was influenced largely by economic considerations. Local government objectives were severely compromised through both local industrial interests and the implementation of central government Group Areas policies.
- Full Text:
- Date Issued: 1994
- Authors: Taylor, Beverley J
- Date: 1994
- Language: English
- Type: text , article
- Identifier: vital:7108 , https://doi.org/10.1080/03736245.1994.9713566 , http://hdl.handle.net/10962/d1010736
- Description: preprint , Studies of racial territorial segregation affecting the coloured population in Port Elizabeth tend to perceive it as an outcome of a power struggle between central and local government over the implementation of apartheid legislation. This paper explores the underlying economic forces on the local government to bring about residential segregation and address the coloured housing crisis in the city. It is proposed that whereas central government motives for segregation were primarily political, local government was influenced largely by economic considerations. Local government objectives were severely compromised through both local industrial interests and the implementation of central government Group Areas policies.
- Full Text:
- Date Issued: 1994