Conference on the History of Opposition in Southern Africa
- Authors: Yawitch, Joanne
- Date: 1978-01-27-30
- Subjects: Riots -- South Africa -- Durban , Beer -- South Africa -- Durban -- History , Women, Black -- Durban -- Economic conditions -- Congresses , Black people -- South Africa -- Durban -- Social conditions -- Congresses , Apartheid -- South Africa -- Durban -- History
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/66623 , vital:28972
- Description: In June 1959 there were widespread riots and disturbances in the Durban African area of Cato Manor. The fundamental causes were socio-economic; arising from such factors as poor living conditions and widespread poverty. But it was the exhaustive beer-raids on illegal stills that provided a flashpoint. It was illegal for Africans to brew their own beer; instead they were obliged to purchase it from the municipal beer-halls - the money then being used for the development and administration of African facilities, (l) Amongst the inhabitants of Cato Manor and particularly amongst women who traditionally brewed the beer, this caused much dissatisfaction. However, discontent was prevented from reaching breaking -point by the police strategy of ignoring illegal brewing as long as amounts did not exceed more than k to 8 gallons, and also by only carrying out very perfunctory raids. (2) Another dimension was added to the beer-hall issue in the form of complaints by women that this was not the traditional way of doing things. They said that men should obtain beer from their women instead of frequenting the beer halls, and more importantly, by patronising the beer-halls, men were depriving their women of what little money they could have paid them. (3) In this complaint centering around the fact that an element of traditional life was being disrupted, is contained another issue of basic importance to the Natal riots in general. The policies of the government as implemented by the Durban Corporation in the case of Cato Manor meant the fragmentation of a traditional and still important social order. The economic function of the women of Cato Manor, and ass will be seen later, of most Natal women was being removed. In addition to basic deprivation it was this factor that can to a large extent be seen as the reason for the intensity and militancy of the women's attacks on the beer-halls and on Corporation property. Cato Manor was an area unique among the locations and townships of Durban. Its inhabitants had moved there in the years just after the war without any official sanction. Cato Manor was unplanned, and as a result of its spontaneous creation far less controlled and policed than any of the townships set up as a result of government planning. Because of this freedom Cato Manor was a haven for all those who were illegally in the urban areas, or whose livelihood contravened the multitude of rules and regulations governing the lives of Africans. Cato Manor's large population of shebeen queens owed its existence to this lack of control. (4) In 1958 there had been considerable discontent and unrest in Cato Manor over the attempt to implement shack-removal schemes, thereby clearing the slum and transferring much of its population to the new township of Kwa Mashu. At Kwa Mashu where rents were higher and which was also less centrally situated than Cato Manor, there was far more rigid control. Removals would have in effect meant that. Cato Manor's large illegal population, including the shebeen Queens and petty traders, would have been deprived of their livelihoods or endorsed out of the urban areas. (5) It was in this context that threats of a Typhoid epidemic in June 1959 caused the Durban Corporation to decide to radically increase and improve sanitation measures in Cato Manor, and to eliminate any conditions conducive to the breeding of flies. The refusal of the inhabitants of Cato Manor to do away with the large quantities of illegal liquor negated the health measures taken by the authorities. Finally, municipal labourers were ordered to enter Cato Manor and destroy all stills. The resentment aroused by this action caused a large group of women to march on the Booth Road Beerhall on June 17th whereupon they chased out the male customers and destroyed the beer. (6) The rioting spread rapidly to other Durban beerhalls and a large proportion of the Corporations property was destroyed. In addition, a successful beer boycott was launched. In Cato Manor violence had subsided by the beginning of July at which time it had already spread to such areas as Verulam and Umbumbulu. Six weeks after the initial rioting essential services had not yet been restored fully in Cato Manor. By the beginning of August unrest was rife in many of Natal's smaller towns as well as a large section of the rural areas.
- Full Text:
- Date Issued: 1978-01-27-30
- Authors: Yawitch, Joanne
- Date: 1978-01-27-30
- Subjects: Riots -- South Africa -- Durban , Beer -- South Africa -- Durban -- History , Women, Black -- Durban -- Economic conditions -- Congresses , Black people -- South Africa -- Durban -- Social conditions -- Congresses , Apartheid -- South Africa -- Durban -- History
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/66623 , vital:28972
- Description: In June 1959 there were widespread riots and disturbances in the Durban African area of Cato Manor. The fundamental causes were socio-economic; arising from such factors as poor living conditions and widespread poverty. But it was the exhaustive beer-raids on illegal stills that provided a flashpoint. It was illegal for Africans to brew their own beer; instead they were obliged to purchase it from the municipal beer-halls - the money then being used for the development and administration of African facilities, (l) Amongst the inhabitants of Cato Manor and particularly amongst women who traditionally brewed the beer, this caused much dissatisfaction. However, discontent was prevented from reaching breaking -point by the police strategy of ignoring illegal brewing as long as amounts did not exceed more than k to 8 gallons, and also by only carrying out very perfunctory raids. (2) Another dimension was added to the beer-hall issue in the form of complaints by women that this was not the traditional way of doing things. They said that men should obtain beer from their women instead of frequenting the beer halls, and more importantly, by patronising the beer-halls, men were depriving their women of what little money they could have paid them. (3) In this complaint centering around the fact that an element of traditional life was being disrupted, is contained another issue of basic importance to the Natal riots in general. The policies of the government as implemented by the Durban Corporation in the case of Cato Manor meant the fragmentation of a traditional and still important social order. The economic function of the women of Cato Manor, and ass will be seen later, of most Natal women was being removed. In addition to basic deprivation it was this factor that can to a large extent be seen as the reason for the intensity and militancy of the women's attacks on the beer-halls and on Corporation property. Cato Manor was an area unique among the locations and townships of Durban. Its inhabitants had moved there in the years just after the war without any official sanction. Cato Manor was unplanned, and as a result of its spontaneous creation far less controlled and policed than any of the townships set up as a result of government planning. Because of this freedom Cato Manor was a haven for all those who were illegally in the urban areas, or whose livelihood contravened the multitude of rules and regulations governing the lives of Africans. Cato Manor's large population of shebeen queens owed its existence to this lack of control. (4) In 1958 there had been considerable discontent and unrest in Cato Manor over the attempt to implement shack-removal schemes, thereby clearing the slum and transferring much of its population to the new township of Kwa Mashu. At Kwa Mashu where rents were higher and which was also less centrally situated than Cato Manor, there was far more rigid control. Removals would have in effect meant that. Cato Manor's large illegal population, including the shebeen Queens and petty traders, would have been deprived of their livelihoods or endorsed out of the urban areas. (5) It was in this context that threats of a Typhoid epidemic in June 1959 caused the Durban Corporation to decide to radically increase and improve sanitation measures in Cato Manor, and to eliminate any conditions conducive to the breeding of flies. The refusal of the inhabitants of Cato Manor to do away with the large quantities of illegal liquor negated the health measures taken by the authorities. Finally, municipal labourers were ordered to enter Cato Manor and destroy all stills. The resentment aroused by this action caused a large group of women to march on the Booth Road Beerhall on June 17th whereupon they chased out the male customers and destroyed the beer. (6) The rioting spread rapidly to other Durban beerhalls and a large proportion of the Corporations property was destroyed. In addition, a successful beer boycott was launched. In Cato Manor violence had subsided by the beginning of July at which time it had already spread to such areas as Verulam and Umbumbulu. Six weeks after the initial rioting essential services had not yet been restored fully in Cato Manor. By the beginning of August unrest was rife in many of Natal's smaller towns as well as a large section of the rural areas.
- Full Text:
- Date Issued: 1978-01-27-30
Conference on the History of Opposition in Southern Africa
- Authors: Dison, David
- Date: 1978-01-27-30
- Subjects: South Africa -- Politics and government -- Congresses , South Africa -- Social conditions -- Congresses , Local government -- South Africa
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/66567 , vital:28964
- Description: It is certainly true that a number of the men who have sat in homeland representative councils live in white areas. Apartheid idealogues draw two inferences from this observation. Firstly, that as the policy of separate development unfolds, urban representation in homeland councils will be a continuing trend. Secondly, that the political aspirations of urban blacks can be fulfilled in the homeland political arena. (1) Both of these conclusions can be refuted at the empirical level alone. With regard to the first, Kotze himself inadvertently provides us with evidence to the contrary. Of the seven representatives " from white urban areas" whom he mentions, four of these men were forced out of the homeland political arena, in 1975 alone. Collins Ramusi and Mageza, having become "interior ministers" for their homelands (Lebowa and Gazankulu respectively) were forced to leave their positions towards the beginning of that year, and Barney Dladla, Executive Councillor for Community Affairs in Buthelezi's KwaZulu cabinet, was ousted as well. Baldwin Mudau’s Venda Independence People’s party suffered continual harassment and was thwarted in its attempts to hold elections in Venda. It was decided to examine the cases of Mudau and Mageza in greater depth to explain how the demise in their roles as ’homeland politicians’ occurred. This examination revealed the fallaciousness of the second and central inference mentioned earlier. It was shown that although these men lived and worked in the city, their electoral support did not come from the urban areas. Once it was established that their electoral base was in fact a predominantly rural one, the refutation of this second theme became complete. On a purely empirical level then, the contentions of Kotze et al were refuted. But to merely refute these ideological statements by providing evidence to the contrary does not answer the questions that have arisen as a result of the investigation. , Opposition politics in Venda and Gazenkulu
- Full Text:
- Date Issued: 1978-01-27-30
- Authors: Dison, David
- Date: 1978-01-27-30
- Subjects: South Africa -- Politics and government -- Congresses , South Africa -- Social conditions -- Congresses , Local government -- South Africa
- Language: English
- Type: text , book
- Identifier: http://hdl.handle.net/10962/66567 , vital:28964
- Description: It is certainly true that a number of the men who have sat in homeland representative councils live in white areas. Apartheid idealogues draw two inferences from this observation. Firstly, that as the policy of separate development unfolds, urban representation in homeland councils will be a continuing trend. Secondly, that the political aspirations of urban blacks can be fulfilled in the homeland political arena. (1) Both of these conclusions can be refuted at the empirical level alone. With regard to the first, Kotze himself inadvertently provides us with evidence to the contrary. Of the seven representatives " from white urban areas" whom he mentions, four of these men were forced out of the homeland political arena, in 1975 alone. Collins Ramusi and Mageza, having become "interior ministers" for their homelands (Lebowa and Gazankulu respectively) were forced to leave their positions towards the beginning of that year, and Barney Dladla, Executive Councillor for Community Affairs in Buthelezi's KwaZulu cabinet, was ousted as well. Baldwin Mudau’s Venda Independence People’s party suffered continual harassment and was thwarted in its attempts to hold elections in Venda. It was decided to examine the cases of Mudau and Mageza in greater depth to explain how the demise in their roles as ’homeland politicians’ occurred. This examination revealed the fallaciousness of the second and central inference mentioned earlier. It was shown that although these men lived and worked in the city, their electoral support did not come from the urban areas. Once it was established that their electoral base was in fact a predominantly rural one, the refutation of this second theme became complete. On a purely empirical level then, the contentions of Kotze et al were refuted. But to merely refute these ideological statements by providing evidence to the contrary does not answer the questions that have arisen as a result of the investigation. , Opposition politics in Venda and Gazenkulu
- Full Text:
- Date Issued: 1978-01-27-30
A contribution to a generic revision of Simochromis and Tropheus (Pisces : Cichlidae) - from Lake Tanganyika, with special reference to the Pharyngeal Apophysis and its taxonomic importance
- Authors: Axelrod, Glen S
- Date: 1978
- Subjects: Cichlids -- Tanganyika, Lake
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5349 , http://hdl.handle.net/10962/d1007510 , Cichlids -- Tanganyika, Lake
- Description: The purpose of this thesis is to investigate the taxonomic status of Simochromis and Tropheue. Material for the study wae collected during three visits to Lake Tanganyika in 1976-1977. Tropheus polli G. S . Axelrod 1977, was found and described, and a new species of Simochromis was found and will be described in a forthcoming paper. Nine colour varieties of Tropheus maorii and three colour varieties of Tropheus duboisi were found and described. A diagnosis and description, with colour photographs, is given using morphometries and meristics of the five species of Simochromis and four species of Tropheus. A dissection and cleaning technique tor the pharyngeal apophysis and lower pharyngeal bone is explained, together with a method for the interpretation of relative bone composition of the pharyngeal apophysis. Photographs are included. The dentition is examined, evaluated and figured. Doubt has been cast upon the taxonomic validity of the composition of the pharyngeal apophysis as an indicator of affinity at the sub familial level. This is shown by its seeming lack of functional relationship, apparent arbitrary variation, interspecific variability in Simochromis and Tropheus, and intraspecific variability in S. diagramma and T. duboisi. Thus, the apophysis cannot be considered a reliable cichlid taxonomic characteristic at any level of classification, unless its validity is Substantiated in each instance. Furthermore, it is considered very probable that the Tropheus-Simochromis species complex is a monophyletic assemblage at the genus level, on the basis of similar dentition and mouth form, which is unique in Lake Tanganyika. It is proposed on phyletic grounds that Simochromis and Tropheus be united into the one genus Tropheus, and that Tropheus be divided into the subgenera , Tropheus (Tropheus) and Tropheus (Simochromis), along the lines of its previous division in two separate genera. Characteristics supporting this division include differences in the anal and dorsal fin meristic counts noted in the original descriptions of the genera. In addition, two modifications of the dentition were found during the course of this study which are not mentioned in any previous literature. It is considered probable, that Tropheus (Tropheus) and Tropheus (Simochromis) are monophyletic sister groups within the Tropheus complex. Pseudosimochromis Nelissen 1977 is not considered to be a taxonomically valid genus on either phyletic or gradistic grounds, and is included within Tropheus (Simochromis). The lower pharyngeal bone of T . (S.) diagramma is considered to be plesiomorphic in tooth arrangement, size and shape. A preliminary worKing hypothesis is established on the basis of the conjectures made and other available information which supports the phyletic relationship suggested by Fryer and lIes (1972). An illustration is given.
- Full Text:
- Date Issued: 1978
- Authors: Axelrod, Glen S
- Date: 1978
- Subjects: Cichlids -- Tanganyika, Lake
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5349 , http://hdl.handle.net/10962/d1007510 , Cichlids -- Tanganyika, Lake
- Description: The purpose of this thesis is to investigate the taxonomic status of Simochromis and Tropheue. Material for the study wae collected during three visits to Lake Tanganyika in 1976-1977. Tropheus polli G. S . Axelrod 1977, was found and described, and a new species of Simochromis was found and will be described in a forthcoming paper. Nine colour varieties of Tropheus maorii and three colour varieties of Tropheus duboisi were found and described. A diagnosis and description, with colour photographs, is given using morphometries and meristics of the five species of Simochromis and four species of Tropheus. A dissection and cleaning technique tor the pharyngeal apophysis and lower pharyngeal bone is explained, together with a method for the interpretation of relative bone composition of the pharyngeal apophysis. Photographs are included. The dentition is examined, evaluated and figured. Doubt has been cast upon the taxonomic validity of the composition of the pharyngeal apophysis as an indicator of affinity at the sub familial level. This is shown by its seeming lack of functional relationship, apparent arbitrary variation, interspecific variability in Simochromis and Tropheus, and intraspecific variability in S. diagramma and T. duboisi. Thus, the apophysis cannot be considered a reliable cichlid taxonomic characteristic at any level of classification, unless its validity is Substantiated in each instance. Furthermore, it is considered very probable that the Tropheus-Simochromis species complex is a monophyletic assemblage at the genus level, on the basis of similar dentition and mouth form, which is unique in Lake Tanganyika. It is proposed on phyletic grounds that Simochromis and Tropheus be united into the one genus Tropheus, and that Tropheus be divided into the subgenera , Tropheus (Tropheus) and Tropheus (Simochromis), along the lines of its previous division in two separate genera. Characteristics supporting this division include differences in the anal and dorsal fin meristic counts noted in the original descriptions of the genera. In addition, two modifications of the dentition were found during the course of this study which are not mentioned in any previous literature. It is considered probable, that Tropheus (Tropheus) and Tropheus (Simochromis) are monophyletic sister groups within the Tropheus complex. Pseudosimochromis Nelissen 1977 is not considered to be a taxonomically valid genus on either phyletic or gradistic grounds, and is included within Tropheus (Simochromis). The lower pharyngeal bone of T . (S.) diagramma is considered to be plesiomorphic in tooth arrangement, size and shape. A preliminary worKing hypothesis is established on the basis of the conjectures made and other available information which supports the phyletic relationship suggested by Fryer and lIes (1972). An illustration is given.
- Full Text:
- Date Issued: 1978
A contribution to the petrology of kimberlites
- Authors: Kruger, Floris Johan
- Date: 1978 , 2013-10-17
- Subjects: Kimberlite -- Africa, Southern , Petrology , Igneous rocks -- Inclusions
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5024 , http://hdl.handle.net/10962/d1006886 , Kimberlite -- Africa, Southern , Petrology , Igneous rocks -- Inclusions
- Description: The petrogenetic relationships of the different varieties of kimberlite in the De Beers Mine and Letseng-Ia-terai composite diatremes have been investigated using petrographic and chemical methods. Kimberlites in the Letseng-Ia-terai diatreme were found to be strongly contaminated by crustal material, mainly basalt. A method to correct for the effects of the contamination has been developed and applied to these kimberlites. Using the corrected data, the four kimberlite types in each group appear to be related to each other by crystal/liquid fractionation models. However the two groups cannot be related to each other. The De Beer Mine has two varieties of kimberlite, a monticellite apatite and calcite rich variety which intruded first, and a phlogopite rich type forming a discrete cylindrical body within the earlier kimberlite. These two kimberlites do not appear to be related by any of the fractionation models discussed. An examination of the data from this work and published sources, suggests that kimberlites are derived from below the low velocity zone by small degrees of partial melting involving garnet lherzolite with subordinate phlogopite and carbonate. Diamonds are probably incorporated as xenocrysts in the magma. Upward movement and emplacement of kimberlite appears to have been very rapid. The diatremes were probably eroded and shaped by gas, derived from the kimberlite magma, escaping to surface along weak zones in the earth's crust. Xenoliths of crustal material incorporated in the kimberlite on intrusion have also been studied and various features due to alteration by the magma are described, including the formation of natrolite and cebollite. The latter is a rare mineral that has not been described from kimberlite before. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 1978
- Authors: Kruger, Floris Johan
- Date: 1978 , 2013-10-17
- Subjects: Kimberlite -- Africa, Southern , Petrology , Igneous rocks -- Inclusions
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5024 , http://hdl.handle.net/10962/d1006886 , Kimberlite -- Africa, Southern , Petrology , Igneous rocks -- Inclusions
- Description: The petrogenetic relationships of the different varieties of kimberlite in the De Beers Mine and Letseng-Ia-terai composite diatremes have been investigated using petrographic and chemical methods. Kimberlites in the Letseng-Ia-terai diatreme were found to be strongly contaminated by crustal material, mainly basalt. A method to correct for the effects of the contamination has been developed and applied to these kimberlites. Using the corrected data, the four kimberlite types in each group appear to be related to each other by crystal/liquid fractionation models. However the two groups cannot be related to each other. The De Beer Mine has two varieties of kimberlite, a monticellite apatite and calcite rich variety which intruded first, and a phlogopite rich type forming a discrete cylindrical body within the earlier kimberlite. These two kimberlites do not appear to be related by any of the fractionation models discussed. An examination of the data from this work and published sources, suggests that kimberlites are derived from below the low velocity zone by small degrees of partial melting involving garnet lherzolite with subordinate phlogopite and carbonate. Diamonds are probably incorporated as xenocrysts in the magma. Upward movement and emplacement of kimberlite appears to have been very rapid. The diatremes were probably eroded and shaped by gas, derived from the kimberlite magma, escaping to surface along weak zones in the earth's crust. Xenoliths of crustal material incorporated in the kimberlite on intrusion have also been studied and various features due to alteration by the magma are described, including the formation of natrolite and cebollite. The latter is a rare mineral that has not been described from kimberlite before. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 1978
A taxonomic study of the Genus Lethrinops Regan (Pisces: Cichlidae) from Lake Malawi: part 2
- Eccles, David H, Lewis, Digby S C
- Authors: Eccles, David H , Lewis, Digby S C
- Date: 1978
- Subjects: Lethrinops -- Malawi, Lake -- Classification , Haplochromis -- Malawi, Lake -- Classification
- Language: English
- Type: Text
- Identifier: vital:14989 , http://hdl.handle.net/10962/d1018957 , ISBN 094998096x , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 37
- Description: Lethrinops argentea Ahl, L. lethrinus (Gunther) and L. leptodon Regan are re-described and illustrated. An additional new species, L. longipinnis, sharing with the above the possession a steeply sloping, wedge-shaped snout, a slender lower pharyngeal bone and few (9—14) gillrakers is described. The status of L. lunaris Trewavas is discussed. , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1978
- Authors: Eccles, David H , Lewis, Digby S C
- Date: 1978
- Subjects: Lethrinops -- Malawi, Lake -- Classification , Haplochromis -- Malawi, Lake -- Classification
- Language: English
- Type: Text
- Identifier: vital:14989 , http://hdl.handle.net/10962/d1018957 , ISBN 094998096x , Ichthyological Bulletin of the J.L.B. Smith Institute of Ichthyology; No. 37
- Description: Lethrinops argentea Ahl, L. lethrinus (Gunther) and L. leptodon Regan are re-described and illustrated. An additional new species, L. longipinnis, sharing with the above the possession a steeply sloping, wedge-shaped snout, a slender lower pharyngeal bone and few (9—14) gillrakers is described. The status of L. lunaris Trewavas is discussed. , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1978
Abraham as a covenant mediator
- Authors: Mitchell, Gordon Barry
- Date: 1978
- Subjects: Abraham (Biblical patriarch) , Covenant theology -- Biblical teaching
- Language: English
- Type: Thesis , Bachelor , BDiv
- Identifier: vital:1238 , http://hdl.handle.net/10962/d1007657 , Abraham (Biblical patriarch) , Covenant theology -- Biblical teaching
- Description: Conclusion: The [Abrahamic] stories reveal a man caught up in the struggle of faith. But the God who took the initiative in establishing the Covenant shows that in spite of first appearances, He is faithful. The stories present various pictures of Abraham as a Covenant Mediator. Because he is in a sense Israel in microcosm it is not strange that he is described in the terms of Israel's most important institutions: prophet, priest, and king. Nevertheless the most significant Sitz im Leben is the family. While he is usually meant to be understood as an individual representing his immediate family, his descendants, and even all nations, at times, because he is the founding ancestor of Israel and therefore Israel in microcosm, he is best understood as a "Corporate Person". He and Israel are to be a source of blessing to the nations.
- Full Text:
- Date Issued: 1978
- Authors: Mitchell, Gordon Barry
- Date: 1978
- Subjects: Abraham (Biblical patriarch) , Covenant theology -- Biblical teaching
- Language: English
- Type: Thesis , Bachelor , BDiv
- Identifier: vital:1238 , http://hdl.handle.net/10962/d1007657 , Abraham (Biblical patriarch) , Covenant theology -- Biblical teaching
- Description: Conclusion: The [Abrahamic] stories reveal a man caught up in the struggle of faith. But the God who took the initiative in establishing the Covenant shows that in spite of first appearances, He is faithful. The stories present various pictures of Abraham as a Covenant Mediator. Because he is in a sense Israel in microcosm it is not strange that he is described in the terms of Israel's most important institutions: prophet, priest, and king. Nevertheless the most significant Sitz im Leben is the family. While he is usually meant to be understood as an individual representing his immediate family, his descendants, and even all nations, at times, because he is the founding ancestor of Israel and therefore Israel in microcosm, he is best understood as a "Corporate Person". He and Israel are to be a source of blessing to the nations.
- Full Text:
- Date Issued: 1978
An analysis of non-white transport requirements in an Eastern Cape urban area
- Authors: Viljoen, John
- Date: 1978
- Subjects: Buses -- South Africa -- Eastern Cape Black people -- Transportation -- South Africa -- Eastern Cape Transportation, Automotive -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:807 , http://hdl.handle.net/10962/d1007265
- Description: From Preface: The following research is centred around the Grahamstown non-white urban transportation problem. The bus service under consideration is owned and operated by the Grahamstown Municipality and is attached to the City Fire Department. It caters only for non-white commuters by operating fourteen buses, which carry approximately 1 200 000 people per year. As such, the difficulties encountered by this transport service should be generally, though not entirely, applicable only to relatively small non-white transport undertakings. The aims of this research are threefold: 1. to establish the environment within which transport undertakings operate, the structure of the undertaking in response to this environment and the problems which such undertakings encounter in their daily operations ; 2. by analysing in detail a specific transport service, an attempt has been made to delineate problem areas in both the cost and revenue structures, and to ascertain the degree of management awareness of the existence of these problems ; and 3. to determine the social impact of this transport operation and to evaluate all aspects of the service in relation to commuters, business and social needs and wants. Unfortunately, an attempt to extend this type of research to further Eastern Cape urban areas was unsuccessful due to the refusal by certain transport undertakings and government bodies to provide essential information.
- Full Text:
- Date Issued: 1978
- Authors: Viljoen, John
- Date: 1978
- Subjects: Buses -- South Africa -- Eastern Cape Black people -- Transportation -- South Africa -- Eastern Cape Transportation, Automotive -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:807 , http://hdl.handle.net/10962/d1007265
- Description: From Preface: The following research is centred around the Grahamstown non-white urban transportation problem. The bus service under consideration is owned and operated by the Grahamstown Municipality and is attached to the City Fire Department. It caters only for non-white commuters by operating fourteen buses, which carry approximately 1 200 000 people per year. As such, the difficulties encountered by this transport service should be generally, though not entirely, applicable only to relatively small non-white transport undertakings. The aims of this research are threefold: 1. to establish the environment within which transport undertakings operate, the structure of the undertaking in response to this environment and the problems which such undertakings encounter in their daily operations ; 2. by analysing in detail a specific transport service, an attempt has been made to delineate problem areas in both the cost and revenue structures, and to ascertain the degree of management awareness of the existence of these problems ; and 3. to determine the social impact of this transport operation and to evaluate all aspects of the service in relation to commuters, business and social needs and wants. Unfortunately, an attempt to extend this type of research to further Eastern Cape urban areas was unsuccessful due to the refusal by certain transport undertakings and government bodies to provide essential information.
- Full Text:
- Date Issued: 1978
An investigation into the effect of particulate solids on certain antimicrobial preservatives in pharmaceutical and cosmetic suspensions
- Authors: Horn, Norman Robert
- Date: 1978
- Subjects: Drugs -- Preservation , Drugs -- Microbiology , Cosmetics -- Preservation , Cosmetics -- Microbiology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3848 , http://hdl.handle.net/10962/d1012436 , Drugs -- Preservation , Drugs -- Microbiology , Cosmetics -- Preservation , Cosmetics -- Microbiology
- Description: Pharmaceutical and cosmetic preparations must be formulated so as to assure elegance of appearance, efficacy of ingredients and a satisfactory shelf life as the product. If the formulation is not self-preserving and if it contains material which could act as a substrate for growth of micro-organisms, the shelf life aspect involves, in addition to several other factors, the choice of a suitable antimicrobial preservative. Such preservatives, when present in the minimum effective concentration, are unfortunately prone to interact with many other materials. A number of papers on the inactivation of preservatives by containers, filters and formulation components have been published. The field has been adequately reviewed by de Navarre (1962), Wedderburn (1964) and, more recently, by Coates (1973). From these reviews and from a study of the literature it became apparent that relatively little work had been done on interactions between preservatives and solid particles in aqueous suspension. Consequently, a range of preservatives not previously investigated in this respect was tested for loss of activity in the presence of fifteen powders commonly used in aqueous suspension in pharmaceutical and cosmetic formulations. In view of the information obtained in this preliminary study and after the development of more satisfactory analytical techniques it was decided to study in greater depth the interaction between these powders and selected organomercurials and quaternary ammonium compounds.
- Full Text:
- Date Issued: 1978
- Authors: Horn, Norman Robert
- Date: 1978
- Subjects: Drugs -- Preservation , Drugs -- Microbiology , Cosmetics -- Preservation , Cosmetics -- Microbiology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3848 , http://hdl.handle.net/10962/d1012436 , Drugs -- Preservation , Drugs -- Microbiology , Cosmetics -- Preservation , Cosmetics -- Microbiology
- Description: Pharmaceutical and cosmetic preparations must be formulated so as to assure elegance of appearance, efficacy of ingredients and a satisfactory shelf life as the product. If the formulation is not self-preserving and if it contains material which could act as a substrate for growth of micro-organisms, the shelf life aspect involves, in addition to several other factors, the choice of a suitable antimicrobial preservative. Such preservatives, when present in the minimum effective concentration, are unfortunately prone to interact with many other materials. A number of papers on the inactivation of preservatives by containers, filters and formulation components have been published. The field has been adequately reviewed by de Navarre (1962), Wedderburn (1964) and, more recently, by Coates (1973). From these reviews and from a study of the literature it became apparent that relatively little work had been done on interactions between preservatives and solid particles in aqueous suspension. Consequently, a range of preservatives not previously investigated in this respect was tested for loss of activity in the presence of fifteen powders commonly used in aqueous suspension in pharmaceutical and cosmetic formulations. In view of the information obtained in this preliminary study and after the development of more satisfactory analytical techniques it was decided to study in greater depth the interaction between these powders and selected organomercurials and quaternary ammonium compounds.
- Full Text:
- Date Issued: 1978
Aphrodite
- Authors: Lautenbach, Janet
- Date: 1978
- Subjects: Aphrodite (Greek deity) , Idols and images -- Greece , Art, Greek , Aphrodite (Greek deity) in literature
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2448 , http://hdl.handle.net/10962/d1006914 , Aphrodite (Greek deity) , Idols and images -- Greece , Art, Greek , Aphrodite (Greek deity) in literature
- Full Text:
- Date Issued: 1978
- Authors: Lautenbach, Janet
- Date: 1978
- Subjects: Aphrodite (Greek deity) , Idols and images -- Greece , Art, Greek , Aphrodite (Greek deity) in literature
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2448 , http://hdl.handle.net/10962/d1006914 , Aphrodite (Greek deity) , Idols and images -- Greece , Art, Greek , Aphrodite (Greek deity) in literature
- Full Text:
- Date Issued: 1978
Bacterial degradation of ixodicide amitraz
- Authors: Allcock, Errol Ralph
- Date: 1978
- Subjects: Ticks -- Control , Pesticides -- Biodegradation , Acaricides
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4081 , http://hdl.handle.net/10962/d1007473 , Ticks -- Control , Pesticides -- Biodegradation , Acaricides
- Description: The control of ticks on cattle has long been a matter of prime importance to stock owners over most of the intensive natural grazing areas in the Southern Hemisphere. The only practical method of dealing with the cattle tick problem in the short term is by treating the infected bovine host with ixodicides i. e. by chemical control. This can be achieved by either plunging the cattle into a dip tank containing aqueous suspensions or emulsions of the ixodicide or by spraying them with dip suspensions in a spray race.
- Full Text:
- Date Issued: 1978
- Authors: Allcock, Errol Ralph
- Date: 1978
- Subjects: Ticks -- Control , Pesticides -- Biodegradation , Acaricides
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4081 , http://hdl.handle.net/10962/d1007473 , Ticks -- Control , Pesticides -- Biodegradation , Acaricides
- Description: The control of ticks on cattle has long been a matter of prime importance to stock owners over most of the intensive natural grazing areas in the Southern Hemisphere. The only practical method of dealing with the cattle tick problem in the short term is by treating the infected bovine host with ixodicides i. e. by chemical control. This can be achieved by either plunging the cattle into a dip tank containing aqueous suspensions or emulsions of the ixodicide or by spraying them with dip suspensions in a spray race.
- Full Text:
- Date Issued: 1978
Community metabolism and phosphorus dynamics in a seasonally closed South African estuary
- Liptrot, Mark Robert Michael
- Authors: Liptrot, Mark Robert Michael
- Date: 1978
- Subjects: Estuarine ecology -- Research -- South Africa -- Swartvlei , Eelgrass -- Research -- South Africa , Enteromorpha -- Research -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5810 , http://hdl.handle.net/10962/d1006966 , Estuarine ecology -- Research -- South Africa -- Swartvlei , Eelgrass -- Research -- South Africa , Enteromorpha -- Research -- South Africa
- Description: The effects of seawater inflows and macrophyte beds on community metabolism and phosphorus dynamics in the seasonally-closed Swartvlei estuary were investigated. Metabolic rates were determined by diurnal oxygen curve analysis. Gross primary production ranged from 0,7 to 14,9 g 0₂ m⁻² day⁻¹, and respiration from 0,9 to 25,2 g 0₂ m⁻² day⁻¹. The highest production rates were recorded inside the dense beds of Zostera capens is Setchell (x- = 7,8 g 0₂ m⁻² day⁻¹ ). Metabolism was positively correlated to submersed macrophyte cover, and decreased upstream of the mouth region. No seasonal variation in gross production could be detected, and mouth closure had no detectable effect on metabolic rates. Growth of the green alga Enteromorpha sp. in winter, and the effect of decay of this alga on dissolved oxygen, total inorganic carbon and total dissolved phosphorus in the water column is discussed. High day-time respiration values, measured in a darkened polythene enclosure, indicate that photorespiration occurs in Zostera. Apparently the annual amount of oxygen respired throughout the estuary exceeded that produced by 2 7100 tonnes, i.e. the estuary was heterotrophic. This is discussed in relation to the effectiveness of the diurnal curve method as a way of measuring metabolic rates, and to the possibility of organic matter input via river inflows. There is a net gain of up to 17,4 kg of particulate phosphorus over mean tides. Diurnal phosphorus studies indicate that Zostera releases phosphate into the water column in the light. Enteromorpha takes up phosphate in the morning, which it appears to release over the rest of the day. The cycling of phosphorus between seawater, sediments, macrophytes and the water column is discussed.
- Full Text:
- Date Issued: 1978
- Authors: Liptrot, Mark Robert Michael
- Date: 1978
- Subjects: Estuarine ecology -- Research -- South Africa -- Swartvlei , Eelgrass -- Research -- South Africa , Enteromorpha -- Research -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5810 , http://hdl.handle.net/10962/d1006966 , Estuarine ecology -- Research -- South Africa -- Swartvlei , Eelgrass -- Research -- South Africa , Enteromorpha -- Research -- South Africa
- Description: The effects of seawater inflows and macrophyte beds on community metabolism and phosphorus dynamics in the seasonally-closed Swartvlei estuary were investigated. Metabolic rates were determined by diurnal oxygen curve analysis. Gross primary production ranged from 0,7 to 14,9 g 0₂ m⁻² day⁻¹, and respiration from 0,9 to 25,2 g 0₂ m⁻² day⁻¹. The highest production rates were recorded inside the dense beds of Zostera capens is Setchell (x- = 7,8 g 0₂ m⁻² day⁻¹ ). Metabolism was positively correlated to submersed macrophyte cover, and decreased upstream of the mouth region. No seasonal variation in gross production could be detected, and mouth closure had no detectable effect on metabolic rates. Growth of the green alga Enteromorpha sp. in winter, and the effect of decay of this alga on dissolved oxygen, total inorganic carbon and total dissolved phosphorus in the water column is discussed. High day-time respiration values, measured in a darkened polythene enclosure, indicate that photorespiration occurs in Zostera. Apparently the annual amount of oxygen respired throughout the estuary exceeded that produced by 2 7100 tonnes, i.e. the estuary was heterotrophic. This is discussed in relation to the effectiveness of the diurnal curve method as a way of measuring metabolic rates, and to the possibility of organic matter input via river inflows. There is a net gain of up to 17,4 kg of particulate phosphorus over mean tides. Diurnal phosphorus studies indicate that Zostera releases phosphate into the water column in the light. Enteromorpha takes up phosphate in the morning, which it appears to release over the rest of the day. The cycling of phosphorus between seawater, sediments, macrophytes and the water column is discussed.
- Full Text:
- Date Issued: 1978
Comparative blanching activities of proprietary diflucortolone valerate topical preparations
- Coleman, Gerald L, Kanfer, Isadore, Haigh, John M
- Authors: Coleman, Gerald L , Kanfer, Isadore , Haigh, John M
- Date: 1978
- Language: English
- Type: Article
- Identifier: vital:6350 , http://hdl.handle.net/10962/d1006032
- Description: The blanching activities and hence bioavailabilities of the cream, ointment and fatty ointment preparations of Nerisone and Temetex (diflucortolone valerate 0.1%) were evaluated using an occluded and unoccluded blanching assay. These products were compared to Synalar ointment and cream (fluocinolone acetonide 0.025%), established topical corticosteroid preparations. Statistical analysis showed no significant differences between similar formulations of diflucortolone valerate. Significant differences were noted between diflucortolone valerate and fluocinolone acetonide preparations.
- Full Text:
- Date Issued: 1978
- Authors: Coleman, Gerald L , Kanfer, Isadore , Haigh, John M
- Date: 1978
- Language: English
- Type: Article
- Identifier: vital:6350 , http://hdl.handle.net/10962/d1006032
- Description: The blanching activities and hence bioavailabilities of the cream, ointment and fatty ointment preparations of Nerisone and Temetex (diflucortolone valerate 0.1%) were evaluated using an occluded and unoccluded blanching assay. These products were compared to Synalar ointment and cream (fluocinolone acetonide 0.025%), established topical corticosteroid preparations. Statistical analysis showed no significant differences between similar formulations of diflucortolone valerate. Significant differences were noted between diflucortolone valerate and fluocinolone acetonide preparations.
- Full Text:
- Date Issued: 1978
Evidence for supposing that our Greek text of the gospel of St Mark is translated from Latin, that most of this Latin still survives, and that by following the Latin we can recover words and actions of Jesus which have been falsified in the Greek translation : inaugural lecture delivere at Rhodes University
- Authors: Gain, D B
- Date: 1978
- Subjects: Bible. Mark -- Translating , Bible. Mark -- Versions , Rhodes University -- History
- Language: English
- Type: text
- Identifier: vital:626 , http://hdl.handle.net/10962/d1020695
- Description: Inaugural lecture delivered at Rhodes University , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1978
- Authors: Gain, D B
- Date: 1978
- Subjects: Bible. Mark -- Translating , Bible. Mark -- Versions , Rhodes University -- History
- Language: English
- Type: text
- Identifier: vital:626 , http://hdl.handle.net/10962/d1020695
- Description: Inaugural lecture delivered at Rhodes University , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1978
From novice to master craftsman: a study of Athol Fugard's plays
- Authors: Hogge, David Somerville
- Date: 1978
- Subjects: Fugard, Athol -- Criticism and interpretation , Dramatists, South African -- 20th century
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2302 , http://hdl.handle.net/10962/d1012328 , Fugard, Athol -- Criticism and interpretation , Dramatists, South African -- 20th century
- Description: Athol Fugard was born in Middelburg, Karroo, on the 11th June; 1932, his mother an Afrikaner, his father an English-speaking South African, possibly of Irish descent. When he was three years old, the family sold the small general dealer's store in the village and moved to Port Elizabeth, which has been his home ever since, though he has lived at various times in Europe, America, and other parts of Africa. After schooling at Port Elizabeth Technical College, he went to the University of Cape Town in 1950, where he read philosophy and social anthropology, supporting himself by working in the vacations as a waiter on the South African Railways. Chapter 1, p. 1.
- Full Text:
- Date Issued: 1978
- Authors: Hogge, David Somerville
- Date: 1978
- Subjects: Fugard, Athol -- Criticism and interpretation , Dramatists, South African -- 20th century
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2302 , http://hdl.handle.net/10962/d1012328 , Fugard, Athol -- Criticism and interpretation , Dramatists, South African -- 20th century
- Description: Athol Fugard was born in Middelburg, Karroo, on the 11th June; 1932, his mother an Afrikaner, his father an English-speaking South African, possibly of Irish descent. When he was three years old, the family sold the small general dealer's store in the village and moved to Port Elizabeth, which has been his home ever since, though he has lived at various times in Europe, America, and other parts of Africa. After schooling at Port Elizabeth Technical College, he went to the University of Cape Town in 1950, where he read philosophy and social anthropology, supporting himself by working in the vacations as a waiter on the South African Railways. Chapter 1, p. 1.
- Full Text:
- Date Issued: 1978
Genetic and bacteriophage studies on Bacteroides thetaiotaomicron and related anaerobic strains
- Authors: Burt, Sharon Joy
- Date: 1978
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:20972 , http://hdl.handle.net/10962/5753
- Description: Gram-negative obligately anaerobic bacilli were isolated from faeces on selective media. R plasmid transfer was investigated in mating experiments between 30 anaerobes and between the anaerobes and known donor and recipient E. coli strains. The transfer of R plasmids from E.coli to B.fragilis, Bacteroides spp., Fusobacterium spp. and other faecal obligate anaerobic bacteria was possible after heat treatment of the recipients at 50°C. The anaerobic exconjugants were unstable and were not able to retransfer the ampr marker. A bacteriophage, B1 , specific for the anaerobe B.thetaiotaomicron, was isolated and characterised. The properties of the phage included a variable burst size and the production of many defective phage particles without tails which were not viable. The B.thetaiotaomicron host was able to establish a phage carrier state with B1 phage. Phenol-extracted phage DNA could transfect ca2+-treated B.thetaiotaomicron cells and transfection was not limited to a particular stage in the growth cycle. An obligatory step in the transfection procedure was a 33-fold dilution in broth, allowing replication of the infected cells. Prolonged incubation of treated cells with DNA prior to dilution in broth resulted in a large decrease in phage titre. The application of this transfection system to the development of a transformation system was not successful . Conventional transformation procedures did not yield transformants, and it was not possible to transduce B.thetaiotaomicron with B1 phage. The B.thetaiotaomicron strain used was distinguished by the formation of two distinct morphological variants. Each morphological type gave rise to the other at the same frequency. Environmental conditions other than elevated temperature, had no effect on the segregation frequency. The grey colony variant was not capsulated and was sensitive to B1 phage, whereas the white colony type was encapsulated and was phage-resistant. Another feature of the B.thetaiotaomicron strain was the low incidence of mutants. A second survey of the occurrence of R plasmids in aerobic coliforms from a remote area of the Transkei and from an urban area, was undertaken. An increase in transferable antibiotic resistance was found over the last three years. It can be concluded that this was a result of the use of antibiotics among the human population, since there are no veterinary services in the area and the addition of antibiotics to animal feeds is not practised.
- Full Text:
- Date Issued: 1978
- Authors: Burt, Sharon Joy
- Date: 1978
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:20972 , http://hdl.handle.net/10962/5753
- Description: Gram-negative obligately anaerobic bacilli were isolated from faeces on selective media. R plasmid transfer was investigated in mating experiments between 30 anaerobes and between the anaerobes and known donor and recipient E. coli strains. The transfer of R plasmids from E.coli to B.fragilis, Bacteroides spp., Fusobacterium spp. and other faecal obligate anaerobic bacteria was possible after heat treatment of the recipients at 50°C. The anaerobic exconjugants were unstable and were not able to retransfer the ampr marker. A bacteriophage, B1 , specific for the anaerobe B.thetaiotaomicron, was isolated and characterised. The properties of the phage included a variable burst size and the production of many defective phage particles without tails which were not viable. The B.thetaiotaomicron host was able to establish a phage carrier state with B1 phage. Phenol-extracted phage DNA could transfect ca2+-treated B.thetaiotaomicron cells and transfection was not limited to a particular stage in the growth cycle. An obligatory step in the transfection procedure was a 33-fold dilution in broth, allowing replication of the infected cells. Prolonged incubation of treated cells with DNA prior to dilution in broth resulted in a large decrease in phage titre. The application of this transfection system to the development of a transformation system was not successful . Conventional transformation procedures did not yield transformants, and it was not possible to transduce B.thetaiotaomicron with B1 phage. The B.thetaiotaomicron strain used was distinguished by the formation of two distinct morphological variants. Each morphological type gave rise to the other at the same frequency. Environmental conditions other than elevated temperature, had no effect on the segregation frequency. The grey colony variant was not capsulated and was sensitive to B1 phage, whereas the white colony type was encapsulated and was phage-resistant. Another feature of the B.thetaiotaomicron strain was the low incidence of mutants. A second survey of the occurrence of R plasmids in aerobic coliforms from a remote area of the Transkei and from an urban area, was undertaken. An increase in transferable antibiotic resistance was found over the last three years. It can be concluded that this was a result of the use of antibiotics among the human population, since there are no veterinary services in the area and the addition of antibiotics to animal feeds is not practised.
- Full Text:
- Date Issued: 1978
Geology of part of the central Damara belt around the Tumas River, South West Africa
- Authors: Bunting, F J L
- Date: 1978
- Subjects: Geology -- Namibia -- Damaraland , Geology, Stratigraphic -- Namibia , Geology -- Namibia -- Tumas River Watershed , Geology -- Namibia
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5049 , http://hdl.handle.net/10962/d1009957 , Geology -- Namibia -- Damaraland , Geology, Stratigraphic -- Namibia , Geology -- Namibia -- Tumas River Watershed , Geology -- Namibia
- Description: The investigation covering 1500 square kilometres within the central granite zone of the Damara belt, South West Africa, revealed Pre - Damara (Abbabis) basement unconformably overlain by metasediments of the Damara Supergroup. The term Leeukop member is proposed for basal metaconglomerates of the Nosib Group that immediately overlie the basement augen-gneisses. Augen-gneiss clasts are present within the Leeukop metaconglomerates. The Damara orogeny has only partly affected the Abbabis rocks of the Tumas River Inlier but further to the west the Husab suite of red granites and granite-gneisses, as field and geochemical evidence suggest, were derived syntectonically during the Damara orogeny by reactivation of the pre- Damara basement. Rõssing alaskitic granites represent late stage melts, that were also derived from Pre- Damara basement rocks during orogenesis, which accumulated post-tectonically in structural traps at the base of the Khomas Subgroup. Salem granitoids are present in synclinal structures associated with metasediments of the Khomas Subgroup and syntectonic derivation by anatexis during the Damara orogeny is suggested. In the east the differentiated Gawib granitoid stock was emplaced post- tectonically through basement rocks into the Damara metasediments. A deep seated origin is indicated by high crystallisation temperatures (>8500°) obtained from quarternary Qz-An-Ab-Or- H₂0 plots. The metamorphic grade increases westwards from medium grade to high grade. In the east, the metapelites contain andalusite, and coexisting muscovite and quartz. This indicates that temperatures of 6000° at 3,5- 4 kb pressure were attained. In the west, coexisting wollastonite and anorthite in the Khan gneisses indicate pressure- temperature conditions of 720° at 4,5-5 kb. Two tectonic events were responsible for the regional structure. An early F₁ episode produced east- west oriented overturned folds and was followed by an intense F₂ episode of isoclinal folding which is responsible for the dominant northeast - southwest regional fabric. The interference of these folds in the proximity of the underlying basement produced the complex dome and basin structures seen in the central and western parts of the area. An F₃ episode of minor importance was also recognized. The presence of continental basement rocks in this central part of the Damara belt is evidence for formation of the orogen by in-situ deformation rather than continental collision.
- Full Text:
- Date Issued: 1978
- Authors: Bunting, F J L
- Date: 1978
- Subjects: Geology -- Namibia -- Damaraland , Geology, Stratigraphic -- Namibia , Geology -- Namibia -- Tumas River Watershed , Geology -- Namibia
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5049 , http://hdl.handle.net/10962/d1009957 , Geology -- Namibia -- Damaraland , Geology, Stratigraphic -- Namibia , Geology -- Namibia -- Tumas River Watershed , Geology -- Namibia
- Description: The investigation covering 1500 square kilometres within the central granite zone of the Damara belt, South West Africa, revealed Pre - Damara (Abbabis) basement unconformably overlain by metasediments of the Damara Supergroup. The term Leeukop member is proposed for basal metaconglomerates of the Nosib Group that immediately overlie the basement augen-gneisses. Augen-gneiss clasts are present within the Leeukop metaconglomerates. The Damara orogeny has only partly affected the Abbabis rocks of the Tumas River Inlier but further to the west the Husab suite of red granites and granite-gneisses, as field and geochemical evidence suggest, were derived syntectonically during the Damara orogeny by reactivation of the pre- Damara basement. Rõssing alaskitic granites represent late stage melts, that were also derived from Pre- Damara basement rocks during orogenesis, which accumulated post-tectonically in structural traps at the base of the Khomas Subgroup. Salem granitoids are present in synclinal structures associated with metasediments of the Khomas Subgroup and syntectonic derivation by anatexis during the Damara orogeny is suggested. In the east the differentiated Gawib granitoid stock was emplaced post- tectonically through basement rocks into the Damara metasediments. A deep seated origin is indicated by high crystallisation temperatures (>8500°) obtained from quarternary Qz-An-Ab-Or- H₂0 plots. The metamorphic grade increases westwards from medium grade to high grade. In the east, the metapelites contain andalusite, and coexisting muscovite and quartz. This indicates that temperatures of 6000° at 3,5- 4 kb pressure were attained. In the west, coexisting wollastonite and anorthite in the Khan gneisses indicate pressure- temperature conditions of 720° at 4,5-5 kb. Two tectonic events were responsible for the regional structure. An early F₁ episode produced east- west oriented overturned folds and was followed by an intense F₂ episode of isoclinal folding which is responsible for the dominant northeast - southwest regional fabric. The interference of these folds in the proximity of the underlying basement produced the complex dome and basin structures seen in the central and western parts of the area. An F₃ episode of minor importance was also recognized. The presence of continental basement rocks in this central part of the Damara belt is evidence for formation of the orogen by in-situ deformation rather than continental collision.
- Full Text:
- Date Issued: 1978
Heterotrophic carbon dioxide fixation by Euglena
- Authors: Peak, Jennifer Grace
- Date: 1978
- Subjects: Euglena
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5824 , http://hdl.handle.net/10962/d1007650
- Description: Heterotrophic (dark, non-photosynthetic) carbon dioxide fixation was measured in the phytoflagellate Euglena gracilis. Variation in heterotrophic carbon dioxide fixation depends on the phase of batch growth and the mode of nutrition. A sharp increase in heterotrophic carbon dioxide fixation occurs during the mid- to late-logarithmic growth periods in Euglena growing photoautotrophically (with carbon dioxide as carbon source, light as energy source) and heterotrophically (in the dark with glucose as sole carbon and energy source). Cells growing heterotrophically with acetate or ethanol as sole carbon source do not increase their heterotrophic carbon dioxide fixation during the growth cycle. Addition of acetate to cultures of Euglena causes a reduction in dark carbon dioxide fixation. The results are consistent with the hypothesis that heterotrophic carbon dioxide fixation in Euglena functions in anaplerotic replenishment of the tricarboxylic acid cycle. The regulation of these changes in heterotrophic carbon dioxide fixation was shown to be controlled by exogenous ammonium in a complex fashion. Ammonium stimulates heterotrophic carbon dioxide fixation after a period of ammonium deprivation. The kinetics of the regulatory effects of the ammonium ion on dark carbon dioxide fixation are presented. A survey into the activities of carboxylating enzymes from both autotrophically and heterotrophically grown Euglena was conducted. The heterotrophic cultures were supplied with either glucose or acetate as substrate. PEP carboxykinase (E.C.4.1.1.38) and (E.C.4.1.1.49) could not be detected in any of the cultures tested. A trace amount of PEP carboxykinase (E.C.4.1.1.32) is present in the acetate grown cells only and a trace amount of pyruvate carboxylase (E.C.6.4.1.1.) is present in the glucose grown cells only. Malate enzyme (E.C.1.1.1.40), PEP carboxylase (E.C.4.1.1.31) and acetylcoenzyme A carboxylase (E.C.6.4.1.2) are present in all cells tested. Ammonium stimulation causes a small increase in specific activity of all the enzymes except acetyl-CoA carboxylase. The largest increase occurs in PEP carboxylase, but the increase is not sufficient to account for observed increases in whole cell dark carbon dioxide fixation after ammonium stimulation. Two isoenzymes of PEP carboxylase were purified from each other from both ammonium stimulated and non-stimulated cells. There are no significant differences between elution profiles of isoenzymes from ammonium stimulated and control cells. There are no significant differences between elution profiles of isoenzymes from autotrophic and heterotrophic cells. The kinetics of the regulation of the two isoenzymes by malate, citrate, succinate and 3-phosphoglycerate are presented. The products of heterotrophic carbon dioxide fixation by ammonium stimulated and control cells were identified and measured by chromatography. Ammonium stimulates the biosynthesis of glutamine, glycine, serine and alanine.
- Full Text:
- Date Issued: 1978
- Authors: Peak, Jennifer Grace
- Date: 1978
- Subjects: Euglena
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5824 , http://hdl.handle.net/10962/d1007650
- Description: Heterotrophic (dark, non-photosynthetic) carbon dioxide fixation was measured in the phytoflagellate Euglena gracilis. Variation in heterotrophic carbon dioxide fixation depends on the phase of batch growth and the mode of nutrition. A sharp increase in heterotrophic carbon dioxide fixation occurs during the mid- to late-logarithmic growth periods in Euglena growing photoautotrophically (with carbon dioxide as carbon source, light as energy source) and heterotrophically (in the dark with glucose as sole carbon and energy source). Cells growing heterotrophically with acetate or ethanol as sole carbon source do not increase their heterotrophic carbon dioxide fixation during the growth cycle. Addition of acetate to cultures of Euglena causes a reduction in dark carbon dioxide fixation. The results are consistent with the hypothesis that heterotrophic carbon dioxide fixation in Euglena functions in anaplerotic replenishment of the tricarboxylic acid cycle. The regulation of these changes in heterotrophic carbon dioxide fixation was shown to be controlled by exogenous ammonium in a complex fashion. Ammonium stimulates heterotrophic carbon dioxide fixation after a period of ammonium deprivation. The kinetics of the regulatory effects of the ammonium ion on dark carbon dioxide fixation are presented. A survey into the activities of carboxylating enzymes from both autotrophically and heterotrophically grown Euglena was conducted. The heterotrophic cultures were supplied with either glucose or acetate as substrate. PEP carboxykinase (E.C.4.1.1.38) and (E.C.4.1.1.49) could not be detected in any of the cultures tested. A trace amount of PEP carboxykinase (E.C.4.1.1.32) is present in the acetate grown cells only and a trace amount of pyruvate carboxylase (E.C.6.4.1.1.) is present in the glucose grown cells only. Malate enzyme (E.C.1.1.1.40), PEP carboxylase (E.C.4.1.1.31) and acetylcoenzyme A carboxylase (E.C.6.4.1.2) are present in all cells tested. Ammonium stimulation causes a small increase in specific activity of all the enzymes except acetyl-CoA carboxylase. The largest increase occurs in PEP carboxylase, but the increase is not sufficient to account for observed increases in whole cell dark carbon dioxide fixation after ammonium stimulation. Two isoenzymes of PEP carboxylase were purified from each other from both ammonium stimulated and non-stimulated cells. There are no significant differences between elution profiles of isoenzymes from ammonium stimulated and control cells. There are no significant differences between elution profiles of isoenzymes from autotrophic and heterotrophic cells. The kinetics of the regulation of the two isoenzymes by malate, citrate, succinate and 3-phosphoglycerate are presented. The products of heterotrophic carbon dioxide fixation by ammonium stimulated and control cells were identified and measured by chromatography. Ammonium stimulates the biosynthesis of glutamine, glycine, serine and alanine.
- Full Text:
- Date Issued: 1978
Introduction for Piet Koornhof, 1978
- Authors: Henderson, Derek Scott
- Date: 1978
- Subjects: Koornhof, Pieter G.J. (1925-2007)
- Language: Afrikaans , English
- Type: Text
- Identifier: vital:7375 , http://hdl.handle.net/10962/d1017255 , Koornhof, Pieter G.J. (1925-2007)
- Full Text:
- Date Issued: 1978
- Authors: Henderson, Derek Scott
- Date: 1978
- Subjects: Koornhof, Pieter G.J. (1925-2007)
- Language: Afrikaans , English
- Type: Text
- Identifier: vital:7375 , http://hdl.handle.net/10962/d1017255 , Koornhof, Pieter G.J. (1925-2007)
- Full Text:
- Date Issued: 1978
Le theme de l'absence dans le theatre d'Arthur Adamov
- Authors: Jones, Rosalind
- Date: 1978
- Subjects: Adamov, Arthur -- Criticism and interpretation , French drama -- History and criticism , Absurd (Philosophy) in literature
- Language: French
- Type: Thesis , Masters , MA
- Identifier: vital:3637 , http://hdl.handle.net/10962/d1013401
- Description: [From Introduction]. L'oeuvre dramatique d'Arthur Adamov (1908-1970) s'lténd sur une trentaine d'années et révèle une grande variété d'influences et d'intérêts. Depuis son point de départ "absurde" des années quarante en passant par une période oú s'imposent des préoccupations d'ordre social et politique pour aboutir á une fusion des sujets métaphysiques et des sujets engagés dans un théâtre qui est de nouveau non-réaliste et onirique, nous pouvons tracer des influences aussi diverses que celle provenant de Flaubert et des premiers surréalistes, de Strindberg et de Kafka, de Dostoîevsky et des expressionnistes russes et allemands, de Buchner, d'Antonin Artaud, de Brecht et de Karl Marx.
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- Date Issued: 1978
- Authors: Jones, Rosalind
- Date: 1978
- Subjects: Adamov, Arthur -- Criticism and interpretation , French drama -- History and criticism , Absurd (Philosophy) in literature
- Language: French
- Type: Thesis , Masters , MA
- Identifier: vital:3637 , http://hdl.handle.net/10962/d1013401
- Description: [From Introduction]. L'oeuvre dramatique d'Arthur Adamov (1908-1970) s'lténd sur une trentaine d'années et révèle une grande variété d'influences et d'intérêts. Depuis son point de départ "absurde" des années quarante en passant par une période oú s'imposent des préoccupations d'ordre social et politique pour aboutir á une fusion des sujets métaphysiques et des sujets engagés dans un théâtre qui est de nouveau non-réaliste et onirique, nous pouvons tracer des influences aussi diverses que celle provenant de Flaubert et des premiers surréalistes, de Strindberg et de Kafka, de Dostoîevsky et des expressionnistes russes et allemands, de Buchner, d'Antonin Artaud, de Brecht et de Karl Marx.
- Full Text:
- Date Issued: 1978
Mdantsane : city, satellite or suburb?
- Authors: Gordon, Timothy John
- Date: 1978
- Subjects: Political geography , Black people -- Relocation -- South Africa -- Ciskei , Ciskei (South Africa) -- Politics and government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:4873 , http://hdl.handle.net/10962/d1012070 , Political geography , Black people -- Relocation -- South Africa -- Ciskei , Ciskei (South Africa) -- Politics and government
- Description: The final step envisaged by present South African Government policy in respect of the black peoples of South Africa is the granting of political independence to the ten homelands which have been set aside for occupation by the various ethnic groups recognized by the. Government. This step represents the culmination of ideas that have developed regarding the separation of races since early in South Africa's history, and decisions that have been taken to implement them. Particularly since the first attempts to formulate black policy after Union in 1910, there have been protagonists of a segregationist policy, and the idea of some sort of self-government for the various races of South Africa has been evident 1n the country for many years. This idea was given greater stature in the policies of the national government after 1948, and in 1959 full political independence for the various black nations in South Africa became a political goal of the governing party. As this policy has progressed during the present decade, a number of new political areas have come into existence at various levels of the hierarchy of political areas. Intro. p. 1.
- Full Text:
- Date Issued: 1978
- Authors: Gordon, Timothy John
- Date: 1978
- Subjects: Political geography , Black people -- Relocation -- South Africa -- Ciskei , Ciskei (South Africa) -- Politics and government
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:4873 , http://hdl.handle.net/10962/d1012070 , Political geography , Black people -- Relocation -- South Africa -- Ciskei , Ciskei (South Africa) -- Politics and government
- Description: The final step envisaged by present South African Government policy in respect of the black peoples of South Africa is the granting of political independence to the ten homelands which have been set aside for occupation by the various ethnic groups recognized by the. Government. This step represents the culmination of ideas that have developed regarding the separation of races since early in South Africa's history, and decisions that have been taken to implement them. Particularly since the first attempts to formulate black policy after Union in 1910, there have been protagonists of a segregationist policy, and the idea of some sort of self-government for the various races of South Africa has been evident 1n the country for many years. This idea was given greater stature in the policies of the national government after 1948, and in 1959 full political independence for the various black nations in South Africa became a political goal of the governing party. As this policy has progressed during the present decade, a number of new political areas have come into existence at various levels of the hierarchy of political areas. Intro. p. 1.
- Full Text:
- Date Issued: 1978