An investigation into the relationship between kinesthetic sensitivity and balancing ability in pre-school children
- Authors: Burger, Laetitia Mary
- Date: 1991
- Subjects: Motor ability in children Perception in children Preschool children
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1615 , http://hdl.handle.net/10962/d1003497
- Description: The purpose of this study was to explore the possibility of a linear relationship between kinesthetic sensitivity and balancing ability in pre-school children. Furthermore, the effects of age on kinesthetic sensitivity and balancing ability were investigated. Finally, the role of gender in kinesthetic sensitivity and balancing ability was examined. Fifty-one subjects, between the ages of three and six years, executed five trials on each of two kinesthetic sensitivity tests (an arm abduction test and a hip abduction test); two tests for static balance (on a balance board and on a balance stick) and two tests for dynamic balance (a beam walk test and a stepping stones test). Although the correlations between kinesthetic sensitivity and balancing ability were generally positive, they were very slight. These low correlations are probably an indication that different abilities are required for carrying out the different tasks. Generally, both balancing ability and kinesthetic sensitivity appeared to improve with age. From analysis of individual test results it was obvious that abilities varied from individual to individual (Appendix G). This could have been the result of developmental, motivational or experiential differences. Although the girls generally performed slightly better on most tests than the boys the correlations between test scores for boys were slightly higher than those for girls. At-test indicated that there were no significant differences between the mean scores of the boys and the girls on the balancing or the kinesthetic sensitivity tasks.
- Full Text:
- Date Issued: 1991
- Authors: Burger, Laetitia Mary
- Date: 1991
- Subjects: Motor ability in children Perception in children Preschool children
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1615 , http://hdl.handle.net/10962/d1003497
- Description: The purpose of this study was to explore the possibility of a linear relationship between kinesthetic sensitivity and balancing ability in pre-school children. Furthermore, the effects of age on kinesthetic sensitivity and balancing ability were investigated. Finally, the role of gender in kinesthetic sensitivity and balancing ability was examined. Fifty-one subjects, between the ages of three and six years, executed five trials on each of two kinesthetic sensitivity tests (an arm abduction test and a hip abduction test); two tests for static balance (on a balance board and on a balance stick) and two tests for dynamic balance (a beam walk test and a stepping stones test). Although the correlations between kinesthetic sensitivity and balancing ability were generally positive, they were very slight. These low correlations are probably an indication that different abilities are required for carrying out the different tasks. Generally, both balancing ability and kinesthetic sensitivity appeared to improve with age. From analysis of individual test results it was obvious that abilities varied from individual to individual (Appendix G). This could have been the result of developmental, motivational or experiential differences. Although the girls generally performed slightly better on most tests than the boys the correlations between test scores for boys were slightly higher than those for girls. At-test indicated that there were no significant differences between the mean scores of the boys and the girls on the balancing or the kinesthetic sensitivity tasks.
- Full Text:
- Date Issued: 1991
An investigation into the use of anaerobic digestion for the treatment of tannery wastewaters
- Authors: Jackson-Moss, Clive Alan
- Date: 1991
- Subjects: Tanneries -- Waste disposal , Sewage sludge -- South Africa -- Management , Sewage -- Purification -- Biological treatment -- South Africa , Water quality management -- South Africa , Water -- Purification -- Biological treatment -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4059 , http://hdl.handle.net/10962/d1004120 , Tanneries -- Waste disposal , Sewage sludge -- South Africa -- Management , Sewage -- Purification -- Biological treatment -- South Africa , Water quality management -- South Africa , Water -- Purification -- Biological treatment -- South Africa
- Description: The anaerobic digestion of tannery wastewaters was investigated with a view to using this form of treatment in the tanning industry. As these wastewaters are extremely complex and contain high concentrations of both inorganic and organic compounds, the effect of these individual compounds on the anaerobic digestion process was investigated in detail, in order to ascertain the fate of these compounds during the digestion process. The experiments comprising the initial toxicity study were carried out as adaptation experiments using a synthetic wastewater. It was found that the heavy metals such as chrome, aluminium and iron precipitated and accumulated in the sludge bed of the digesters . The soluble ions such as sodium and chloride were not retained and passed through the digesters. Approximately 20 % of the calcium ions were removed through precipitation, with the remainder being present in the digester effluent . Under the anaerobic conditions, ammonification of the organic nitrogen occurred, and influent sulphates were reduced to sulphides . These sulphides were present as either H2S, HS or insoluble sulphides. As these compounds under investigation on caused no inhibition of the anaerobic digestion process at the concentrations found in tannery wastewaters, the anaerobic treatment of these wastewaters appeared to be possible, provided the bacteria were given sufficient time to adapt to the potentially toxic compounds. However, despite the findings of the synthetic study, the successful anaerobic digestion of the tannery effluents could not be achieved. Although the use of acid was found to be essential in order to control the digester pH in the optimum range, the metabolism of the methanogenic bacteria was inhibited by the presence or absence of unknown compounds. Neither the addition of essential trace nutrients, nor the prevention of the competition between the methanogens and the sulphate-reducing bacteria were able to reverse this inhibition. As tannery effluents contain very low concentrations of phosphorous, it is possible that the methanogens were inhibited by a lack of phosphorous, which is essential during methanogenesis. In contrast to the results obtained from the effluent experiments, the anaerobic digestion of tannery sludge was found to be possible. Of the organic solids present in the sludge, 60 % were degraded and converted into biogas, which had a methane content greater than 70 %. The degradation of the organic solids ensured that COD and PV reductions of greater than 90 % were achieved, and the fate of the compounds in the digesters were in agreement with the findings of the v synthetic study. Efforts to improve the efficiency of the digestion process through the addition of trace nutrients and the use of a two-stage process were only successful in bringing about a minor improvement in digester performance. The overall results of this investigation show, therefore, that although the anaerobic treatment of the tannery effluent was not achieved, the successful anaerobic digestion of tannery sludge is possible at low loading rates. As many difficulties still need to be solved, a great deal of further research is necessary if anaerobic digestion is to be used on an industrial scale for the treatment and disposal of tannery wastewaters.
- Full Text:
- Date Issued: 1991
- Authors: Jackson-Moss, Clive Alan
- Date: 1991
- Subjects: Tanneries -- Waste disposal , Sewage sludge -- South Africa -- Management , Sewage -- Purification -- Biological treatment -- South Africa , Water quality management -- South Africa , Water -- Purification -- Biological treatment -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4059 , http://hdl.handle.net/10962/d1004120 , Tanneries -- Waste disposal , Sewage sludge -- South Africa -- Management , Sewage -- Purification -- Biological treatment -- South Africa , Water quality management -- South Africa , Water -- Purification -- Biological treatment -- South Africa
- Description: The anaerobic digestion of tannery wastewaters was investigated with a view to using this form of treatment in the tanning industry. As these wastewaters are extremely complex and contain high concentrations of both inorganic and organic compounds, the effect of these individual compounds on the anaerobic digestion process was investigated in detail, in order to ascertain the fate of these compounds during the digestion process. The experiments comprising the initial toxicity study were carried out as adaptation experiments using a synthetic wastewater. It was found that the heavy metals such as chrome, aluminium and iron precipitated and accumulated in the sludge bed of the digesters . The soluble ions such as sodium and chloride were not retained and passed through the digesters. Approximately 20 % of the calcium ions were removed through precipitation, with the remainder being present in the digester effluent . Under the anaerobic conditions, ammonification of the organic nitrogen occurred, and influent sulphates were reduced to sulphides . These sulphides were present as either H2S, HS or insoluble sulphides. As these compounds under investigation on caused no inhibition of the anaerobic digestion process at the concentrations found in tannery wastewaters, the anaerobic treatment of these wastewaters appeared to be possible, provided the bacteria were given sufficient time to adapt to the potentially toxic compounds. However, despite the findings of the synthetic study, the successful anaerobic digestion of the tannery effluents could not be achieved. Although the use of acid was found to be essential in order to control the digester pH in the optimum range, the metabolism of the methanogenic bacteria was inhibited by the presence or absence of unknown compounds. Neither the addition of essential trace nutrients, nor the prevention of the competition between the methanogens and the sulphate-reducing bacteria were able to reverse this inhibition. As tannery effluents contain very low concentrations of phosphorous, it is possible that the methanogens were inhibited by a lack of phosphorous, which is essential during methanogenesis. In contrast to the results obtained from the effluent experiments, the anaerobic digestion of tannery sludge was found to be possible. Of the organic solids present in the sludge, 60 % were degraded and converted into biogas, which had a methane content greater than 70 %. The degradation of the organic solids ensured that COD and PV reductions of greater than 90 % were achieved, and the fate of the compounds in the digesters were in agreement with the findings of the v synthetic study. Efforts to improve the efficiency of the digestion process through the addition of trace nutrients and the use of a two-stage process were only successful in bringing about a minor improvement in digester performance. The overall results of this investigation show, therefore, that although the anaerobic treatment of the tannery effluent was not achieved, the successful anaerobic digestion of tannery sludge is possible at low loading rates. As many difficulties still need to be solved, a great deal of further research is necessary if anaerobic digestion is to be used on an industrial scale for the treatment and disposal of tannery wastewaters.
- Full Text:
- Date Issued: 1991
An investigation of the evolution and current status of the core theoretical disciplines in the training of primary school teachers at selected English-medium training institutions in South Africa
- Authors: Robertson, Sally-Ann, 1952-
- Date: 1991
- Subjects: Elementary school teachers -- Training of -- South Africa , Teachers -- Training of -- South Africa , Education -- Philosophy
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2008 , http://hdl.handle.net/10962/d1015891
- Description: This investigation examines developments which have taken place in the theoretical component of pre-service courses for primary teachers. Revised conceptions of the purpose and scope of primary education, and the attendant demand for better qualified primary teachers to implement such education, resulted in a considerable increase in the theoretical component of primary teacher preparation courses . Better theoretical understanding of the educative task was perceived to be essential to the production of more effective primary teachers. The emergence of various schemes for the preparation of South African primary teachers is outlined. The Cape Province provides the major exemplar. The nature of educational theory, and its precise contribution to enhanced teaching ability has been a subject of fierce debate within educational circles. An analysis of theory, in general, and as it applies in the educational context, is undertaken. The evolution of the core theoretical disciplines of education - history, philosophy, psychology and sociology of education - is traced. The current status of these disciplines at selected South African institutions undertaking primary teacher preparation is then investigated, and the views of lecturing staff at these institutions on the optimal approach to the teaching of educational theory are presented. The disciplines still play an important role in the South African Bachelor of Primary Education degree courses surveyed. In British teacher preparation courses, however, disenchantment with the disciplines' format has given rise to demands for new approaches to the teaching of educational theory. Some of these alternative approaches are evaluated. An overall assessment is made of the contribution that can be expected from educational theory in pre-service courses for primary teachers, and some recommendations are made for the management of the theoretical component of pre-service courses for South African primary teachers.
- Full Text:
- Date Issued: 1991
- Authors: Robertson, Sally-Ann, 1952-
- Date: 1991
- Subjects: Elementary school teachers -- Training of -- South Africa , Teachers -- Training of -- South Africa , Education -- Philosophy
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2008 , http://hdl.handle.net/10962/d1015891
- Description: This investigation examines developments which have taken place in the theoretical component of pre-service courses for primary teachers. Revised conceptions of the purpose and scope of primary education, and the attendant demand for better qualified primary teachers to implement such education, resulted in a considerable increase in the theoretical component of primary teacher preparation courses . Better theoretical understanding of the educative task was perceived to be essential to the production of more effective primary teachers. The emergence of various schemes for the preparation of South African primary teachers is outlined. The Cape Province provides the major exemplar. The nature of educational theory, and its precise contribution to enhanced teaching ability has been a subject of fierce debate within educational circles. An analysis of theory, in general, and as it applies in the educational context, is undertaken. The evolution of the core theoretical disciplines of education - history, philosophy, psychology and sociology of education - is traced. The current status of these disciplines at selected South African institutions undertaking primary teacher preparation is then investigated, and the views of lecturing staff at these institutions on the optimal approach to the teaching of educational theory are presented. The disciplines still play an important role in the South African Bachelor of Primary Education degree courses surveyed. In British teacher preparation courses, however, disenchantment with the disciplines' format has given rise to demands for new approaches to the teaching of educational theory. Some of these alternative approaches are evaluated. An overall assessment is made of the contribution that can be expected from educational theory in pre-service courses for primary teachers, and some recommendations are made for the management of the theoretical component of pre-service courses for South African primary teachers.
- Full Text:
- Date Issued: 1991
An investigation of the interrelationship between group commitment, religiosity, marital adjustment and attitude to divorce in the Jewish ethnic group
- Authors: Miller, Bernice
- Date: 1991
- Subjects: Jews -- Psychology , Judaism , Jews -- Attitudes , Ethnicity , Marriage (Jewish law) , Divorce (Jewish law)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3019 , http://hdl.handle.net/10962/d1002528 , Jews -- Psychology , Judaism , Jews -- Attitudes , Ethnicity , Marriage (Jewish law) , Divorce (Jewish law)
- Description: The purpose of this research was to investigate the interrelationships between marital adjustment, group commitment, religiosity and attitude to divorce in the Jewish group. It amounted to a within group empirical study of the Jewish community of Cape Town. Research, to date, has focused on marital stability where researchers have found that Jews have lower divorce rates than the general population. The present study attempted to assess the psycho-social outcomes of group commitment in the form of marital adjustment, thus bridging the gap between marital quality and marital stability in the Jewish group. On a wider level, the purpose of this research was to assess whether a social structural framework, utilizing the concept of social integration, is a perspective that can be used in explaining variations in marital adjustment. The following were the findings of the research : Religiosity was correlated to group commitment but not to marital adjustment; group commitment was correlated to marital adjustment; a negative attitude to divorce was not correlated to marital adjustment, group commitment or religiosity.
- Full Text:
- Date Issued: 1991
- Authors: Miller, Bernice
- Date: 1991
- Subjects: Jews -- Psychology , Judaism , Jews -- Attitudes , Ethnicity , Marriage (Jewish law) , Divorce (Jewish law)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3019 , http://hdl.handle.net/10962/d1002528 , Jews -- Psychology , Judaism , Jews -- Attitudes , Ethnicity , Marriage (Jewish law) , Divorce (Jewish law)
- Description: The purpose of this research was to investigate the interrelationships between marital adjustment, group commitment, religiosity and attitude to divorce in the Jewish group. It amounted to a within group empirical study of the Jewish community of Cape Town. Research, to date, has focused on marital stability where researchers have found that Jews have lower divorce rates than the general population. The present study attempted to assess the psycho-social outcomes of group commitment in the form of marital adjustment, thus bridging the gap between marital quality and marital stability in the Jewish group. On a wider level, the purpose of this research was to assess whether a social structural framework, utilizing the concept of social integration, is a perspective that can be used in explaining variations in marital adjustment. The following were the findings of the research : Religiosity was correlated to group commitment but not to marital adjustment; group commitment was correlated to marital adjustment; a negative attitude to divorce was not correlated to marital adjustment, group commitment or religiosity.
- Full Text:
- Date Issued: 1991
An investigation of the romantic ballet in its sociocultural context in Paris and London, 1830 to 1850
- Authors: Osborne, Jane
- Date: 1991
- Subjects: Ballet -- France -- Paris , Ballet -- England -- London , Ballet -- History -- 19th century , Ballet -- Sociological aspects
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2126 , http://hdl.handle.net/10962/d1002028
- Description: Historians have made a considerable contribution to the study of the Romantic ballet in terms of chronological development, the Romantic movement in the arts and the contribution of specific dancers and choreographers; very little research has been attempted to date on the interrelationship between the dance form and the wide range of human experience of the period. This holistic approach provides insight into form, content and stagecraft; political, economic and social influences; the prevailing artistic aesthetic and cultural climate; sex, gender and class issues; and the priorities, value system and nuances of the times. Recent work by historians and social scientists (eg Brinson 1981, Adshead 1983, Spencer 1985, Hanna 1988, Garafola 1989) advocates a recognition of the role of social and cultural systems in the evaluation of dance. This approach further ackowledges the equal status of all cultures, and has opened up areas of African performing dance in cultural systems outside the west. My parallel investigation of the gumboot dance in its South African context, which appears in Appendix B, provides an example. The first half of the nineteenth century was characterized by the disruptive beginnings of the emergent industrial world, centred in Paris and London; and the Romantic ballet tradition reached its greatest heights at this time. Chapter one establishes the political, economic, social and artistic environment, and identifies middle class dominance as a key factor. Chapters two and three focus primarily on the three great ballets of the age, La Sylphide, 1832, Giselie, 1841, and Pas de Quatre, 1845, as expressions of the essential duality of the times, and of Romantic synaesthesia in the arts, which enabled them to transcend the pedestrian bourgeois materialism of faciliatators and audience. Chapter four examines the images of the idealized ballerina and the 'Victorian' middle class woman in relation to bourgeois male attitudes to female sexuality, gender and class. The conclusion sums up the themes of duality, middle class influence, and the Romantic aesthetic, and discusses the prevalent notion that this period was identified as a 'golden age' of the Romantic ballet.
- Full Text:
- Date Issued: 1991
- Authors: Osborne, Jane
- Date: 1991
- Subjects: Ballet -- France -- Paris , Ballet -- England -- London , Ballet -- History -- 19th century , Ballet -- Sociological aspects
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2126 , http://hdl.handle.net/10962/d1002028
- Description: Historians have made a considerable contribution to the study of the Romantic ballet in terms of chronological development, the Romantic movement in the arts and the contribution of specific dancers and choreographers; very little research has been attempted to date on the interrelationship between the dance form and the wide range of human experience of the period. This holistic approach provides insight into form, content and stagecraft; political, economic and social influences; the prevailing artistic aesthetic and cultural climate; sex, gender and class issues; and the priorities, value system and nuances of the times. Recent work by historians and social scientists (eg Brinson 1981, Adshead 1983, Spencer 1985, Hanna 1988, Garafola 1989) advocates a recognition of the role of social and cultural systems in the evaluation of dance. This approach further ackowledges the equal status of all cultures, and has opened up areas of African performing dance in cultural systems outside the west. My parallel investigation of the gumboot dance in its South African context, which appears in Appendix B, provides an example. The first half of the nineteenth century was characterized by the disruptive beginnings of the emergent industrial world, centred in Paris and London; and the Romantic ballet tradition reached its greatest heights at this time. Chapter one establishes the political, economic, social and artistic environment, and identifies middle class dominance as a key factor. Chapters two and three focus primarily on the three great ballets of the age, La Sylphide, 1832, Giselie, 1841, and Pas de Quatre, 1845, as expressions of the essential duality of the times, and of Romantic synaesthesia in the arts, which enabled them to transcend the pedestrian bourgeois materialism of faciliatators and audience. Chapter four examines the images of the idealized ballerina and the 'Victorian' middle class woman in relation to bourgeois male attitudes to female sexuality, gender and class. The conclusion sums up the themes of duality, middle class influence, and the Romantic aesthetic, and discusses the prevalent notion that this period was identified as a 'golden age' of the Romantic ballet.
- Full Text:
- Date Issued: 1991
An investigation of the significance of learned helplessness on membership participation in co-operative movements
- Authors: Norman, Paul Deon
- Date: 1991
- Subjects: Learned helplessness , Psychology , Black people -- South Africa , Attributional Style Questionnaire , Partician Index , Co-operatives , Helplessness (Psychology) , Black people -- Psychology
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2895 , http://hdl.handle.net/10962/d1002059
- Description: In this study the psychological phenomenon of learned helplessness is investigated to determine its significance as a characteristic of members of progressive co-operatives within the South African context. Most of the members of these co-operatives are black South Africans. It is argued that because of the country's racial policy, many of the members have become accustomed to a passive response to events in their lives and this gives rise to their failure to utilise the freedom and opportunities of the co-operative structure. The researcher hypothesises that this passive response could be explained in terms of a high level of learned helplessness among co-operative members. Two hypotheses are investigated in this study: Hypothesis 1: Passive co-operative members will have higher levels of learned helplessness than active members. Hypothesis 2:The level of learned helplessness decreases as the length of co-operative members involvement increases. Data collection for this study was carried out by combining a personal interview and a standardised questionnaire (the Attributional Style Questionnaire). To distinguish between the passive and active members, a Participation Index was constructed. The ASQ was translated into Xhosa, adapted for the sample and two translators were employed to conduct the interviews in Xhosa. The sample consisted of 50 black South Africans, many with limited education and was drawn from six co-operatives in the Eastern Cape. No significant differences were found between the active and passive groups in terms of their levels of learned helplessness. Furthermore, the length of involvement in the co-operative had no effect on the level of learned helplessness. No support was found therefore for Hypothesis l and 2. A significant difference, however, was found between active and passive members and the number of months of involvement. This suggests that the length of involvement has an effect on how active members will be in the co-operative. The results of this study indicate that generally the sample does not suffer from learned helplessness. It is argued that Hypothesis 2 is not supported due to confounding variables. The study raises many doubts as to the reliability of the ASQ and the Participation Index used in the study.
- Full Text:
- Date Issued: 1991
- Authors: Norman, Paul Deon
- Date: 1991
- Subjects: Learned helplessness , Psychology , Black people -- South Africa , Attributional Style Questionnaire , Partician Index , Co-operatives , Helplessness (Psychology) , Black people -- Psychology
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2895 , http://hdl.handle.net/10962/d1002059
- Description: In this study the psychological phenomenon of learned helplessness is investigated to determine its significance as a characteristic of members of progressive co-operatives within the South African context. Most of the members of these co-operatives are black South Africans. It is argued that because of the country's racial policy, many of the members have become accustomed to a passive response to events in their lives and this gives rise to their failure to utilise the freedom and opportunities of the co-operative structure. The researcher hypothesises that this passive response could be explained in terms of a high level of learned helplessness among co-operative members. Two hypotheses are investigated in this study: Hypothesis 1: Passive co-operative members will have higher levels of learned helplessness than active members. Hypothesis 2:The level of learned helplessness decreases as the length of co-operative members involvement increases. Data collection for this study was carried out by combining a personal interview and a standardised questionnaire (the Attributional Style Questionnaire). To distinguish between the passive and active members, a Participation Index was constructed. The ASQ was translated into Xhosa, adapted for the sample and two translators were employed to conduct the interviews in Xhosa. The sample consisted of 50 black South Africans, many with limited education and was drawn from six co-operatives in the Eastern Cape. No significant differences were found between the active and passive groups in terms of their levels of learned helplessness. Furthermore, the length of involvement in the co-operative had no effect on the level of learned helplessness. No support was found therefore for Hypothesis l and 2. A significant difference, however, was found between active and passive members and the number of months of involvement. This suggests that the length of involvement has an effect on how active members will be in the co-operative. The results of this study indicate that generally the sample does not suffer from learned helplessness. It is argued that Hypothesis 2 is not supported due to confounding variables. The study raises many doubts as to the reliability of the ASQ and the Participation Index used in the study.
- Full Text:
- Date Issued: 1991
Art and authority : aspects of Russian art since 1917
- Authors: Thompson, Rowan Douglas
- Date: 1991
- Subjects: Authority in art Art, Russian Art, Russian -- 20th century
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2450 , http://hdl.handle.net/10962/d1007298
- Description: From Introduction: The Artist was denied any role in Plato's Republic because of his ability to impair reason by imitating reality through his works. Aristotle, however, welcomed the artist because of his ability to express ideas about society through artistic form. Ernst Fischer agrees with the latter view, "Art enables man to comprehend reality, and not only helps him to bear it but increases his determination to make it more human and more worthy of mankind. Art is itself a social reality, society needs the artist ... and it has a right to demand of him that he should be conscious of his social function" (Fischer: 1963:46). Fischer adds to Aristotle's view by stating that society has a right to demand a social function from the artist. This issue has been the subject of controversial debate throughout the history of art. In a society based on class, the classes try to recruit art to serve their particular purposes. Art is seen by some as a powerful weapon - a means by which people can be swayed towards certain ideals. At the time of the Counter Reformation Italian artists were given strict instructions by the Jesuits on how to persuade and educate the people with their paintings. Napoleon urged his men of letters, painters and architects to refer to the classical ideals of ancient Greece and Rome to shape the emergent French Republic. The French philosopher, Dennis Diderot, stressed the futility of art unless it expressed great prinCiples or lessons for the spectator. Ideals of justice, courage and patriotism were embodied in the Neo-Classical movement. The didactic paintings of Jacques Louis David portray the above ideals. History records several attempts by those in power to coerce artists into conforming to their idea of society, indicating that authoritative manipulation of the arts is not purely a twentieth century phenomenon. This thesis intends to examine aspects of Russian art since 1917. Because Soviet art was dominated by policies which enabled authorities to determine its content, its history raises ideological issues which are relevant to the study of art. The theories of Suprematism, Constructivism and Socialist Realism will be discussed and conclusions will be drawn as to whether these theories succeeded as art movements which were ostensibly designed for the improvement of mankind. Present attitudes toward the visual arts in Russia will also be examined. However, in order to examine the above it is necessary to place the development of art into historical perspective.
- Full Text:
- Date Issued: 1991
- Authors: Thompson, Rowan Douglas
- Date: 1991
- Subjects: Authority in art Art, Russian Art, Russian -- 20th century
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2450 , http://hdl.handle.net/10962/d1007298
- Description: From Introduction: The Artist was denied any role in Plato's Republic because of his ability to impair reason by imitating reality through his works. Aristotle, however, welcomed the artist because of his ability to express ideas about society through artistic form. Ernst Fischer agrees with the latter view, "Art enables man to comprehend reality, and not only helps him to bear it but increases his determination to make it more human and more worthy of mankind. Art is itself a social reality, society needs the artist ... and it has a right to demand of him that he should be conscious of his social function" (Fischer: 1963:46). Fischer adds to Aristotle's view by stating that society has a right to demand a social function from the artist. This issue has been the subject of controversial debate throughout the history of art. In a society based on class, the classes try to recruit art to serve their particular purposes. Art is seen by some as a powerful weapon - a means by which people can be swayed towards certain ideals. At the time of the Counter Reformation Italian artists were given strict instructions by the Jesuits on how to persuade and educate the people with their paintings. Napoleon urged his men of letters, painters and architects to refer to the classical ideals of ancient Greece and Rome to shape the emergent French Republic. The French philosopher, Dennis Diderot, stressed the futility of art unless it expressed great prinCiples or lessons for the spectator. Ideals of justice, courage and patriotism were embodied in the Neo-Classical movement. The didactic paintings of Jacques Louis David portray the above ideals. History records several attempts by those in power to coerce artists into conforming to their idea of society, indicating that authoritative manipulation of the arts is not purely a twentieth century phenomenon. This thesis intends to examine aspects of Russian art since 1917. Because Soviet art was dominated by policies which enabled authorities to determine its content, its history raises ideological issues which are relevant to the study of art. The theories of Suprematism, Constructivism and Socialist Realism will be discussed and conclusions will be drawn as to whether these theories succeeded as art movements which were ostensibly designed for the improvement of mankind. Present attitudes toward the visual arts in Russia will also be examined. However, in order to examine the above it is necessary to place the development of art into historical perspective.
- Full Text:
- Date Issued: 1991
Aspects of the biology, ecology and population dynamics of Galeichthys feliceps (Valenciennes) and G. ater (Castelnau) (Pisces: Ariidae) off the south-east coast of South Africa
- Authors: Tilney, Robin Lewis
- Date: 1991
- Subjects: Catfishes -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5221 , http://hdl.handle.net/10962/d1005064
- Description: This thesis represents a detailed investigation into aspects of the biology, ecology and population dynamics of two endemic ariid species, Galeichthys feliceps and G. ater, off the southeast coast of South Africa. The two species are exploited as a by-catch in the commercial ski-boat fishery off Port Alfred, a fishery dominated by highly fecund sparid and sciaenid species. They collectively constitute approximately 10% of the total annual catch in terms of landed mass G. feliceps outnumber G. ater in the catches by a ratio of 3:1. The investigation was designed to provide the biological data required for stock assessment and to determine optimum management strategies for the two populations. The implications of their K-selected life-history styles for exploitation received particular attention. While the two species were sympatric and had similar depth distributions they were found to be allopatric with respect to their foraging habitats. G. feliceps foraged over sandy and muddy substrata in marine and estuarine environments. G. ater fed only on reef-associated species and did not utilise estuaries. Their feeding-associated morphologies were identical and both species preyed primarily on crustaceans (brachyuran crabs and isopods), echiurids, molluscs and polychaetes. The diet of G. ater was broader in terms of the number of species consumed. The two species are mouth-brooders with low fecundity. G. feliceps and G. ater produced a mean of 49 and 32 eggs each, per annum. The buccal incubation period was determined to be in the region of 140 days for G. feliceps. Embryos hatched after approximately 75-80 days and the young began exogenous feeding thereafter. The young fed intra-buccally on detritus provided by the parent. Adult buccal mucus may also have been used as a food source. Young were released at a total length of ± 55mm. Adult males ceased feeding whilst mouth-brooding. Body musculature, abdominal fat and liver reserves provided energy for basal metabolism and males lost approximately 28% of their body mass during buccal incubation. Females expended less reproductive energy than males. Catches were dominated by mature fish (76% in G. feliceps and 97% in G. ater). Females were significantly more abundant in catches during the spawning and mouth-brooding period. The female to male sex ratios were 1.65:1 and 2.23:1 for G. feliceps and G. ater respectively. Age and growth studies revealed that the two species mature at advanced ages (10 and 9 years for G. feliceps and 9 and 7 years for G. ater males and females respectively). They are long-lived, reaching ages in excess of 18 years in G. feliceps and in excess of 15 years in G. ater. Females live longer than males and grow larger. Yield-per-recruit and spawner biomass-per-recruit analyses demonstrated that G. ater were exploited below FO.1 at a level where spawner biomass-per-recruit was reduced to between 45% and 65% of the unexploited level. The G. ater stock was not adversely affected by current levels of fishing effort. For G. feliceps, both sexes were exploited beyond F₀.₁ where spawner biomass-per-recruit was reduced to between 30% and 22% of the unexploited level. G. feliceps were shown to be sensitive to relatively low levels of exploitation, a phenomenon attributed to their highly Kselected life-history style. Should the species become targeted for in the future, effort restrictions in the form of a closed season during the spawning and mouth-brooding period would prove effective in reducing effort and conserving the population sex ratio.
- Full Text:
- Date Issued: 1991
- Authors: Tilney, Robin Lewis
- Date: 1991
- Subjects: Catfishes -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5221 , http://hdl.handle.net/10962/d1005064
- Description: This thesis represents a detailed investigation into aspects of the biology, ecology and population dynamics of two endemic ariid species, Galeichthys feliceps and G. ater, off the southeast coast of South Africa. The two species are exploited as a by-catch in the commercial ski-boat fishery off Port Alfred, a fishery dominated by highly fecund sparid and sciaenid species. They collectively constitute approximately 10% of the total annual catch in terms of landed mass G. feliceps outnumber G. ater in the catches by a ratio of 3:1. The investigation was designed to provide the biological data required for stock assessment and to determine optimum management strategies for the two populations. The implications of their K-selected life-history styles for exploitation received particular attention. While the two species were sympatric and had similar depth distributions they were found to be allopatric with respect to their foraging habitats. G. feliceps foraged over sandy and muddy substrata in marine and estuarine environments. G. ater fed only on reef-associated species and did not utilise estuaries. Their feeding-associated morphologies were identical and both species preyed primarily on crustaceans (brachyuran crabs and isopods), echiurids, molluscs and polychaetes. The diet of G. ater was broader in terms of the number of species consumed. The two species are mouth-brooders with low fecundity. G. feliceps and G. ater produced a mean of 49 and 32 eggs each, per annum. The buccal incubation period was determined to be in the region of 140 days for G. feliceps. Embryos hatched after approximately 75-80 days and the young began exogenous feeding thereafter. The young fed intra-buccally on detritus provided by the parent. Adult buccal mucus may also have been used as a food source. Young were released at a total length of ± 55mm. Adult males ceased feeding whilst mouth-brooding. Body musculature, abdominal fat and liver reserves provided energy for basal metabolism and males lost approximately 28% of their body mass during buccal incubation. Females expended less reproductive energy than males. Catches were dominated by mature fish (76% in G. feliceps and 97% in G. ater). Females were significantly more abundant in catches during the spawning and mouth-brooding period. The female to male sex ratios were 1.65:1 and 2.23:1 for G. feliceps and G. ater respectively. Age and growth studies revealed that the two species mature at advanced ages (10 and 9 years for G. feliceps and 9 and 7 years for G. ater males and females respectively). They are long-lived, reaching ages in excess of 18 years in G. feliceps and in excess of 15 years in G. ater. Females live longer than males and grow larger. Yield-per-recruit and spawner biomass-per-recruit analyses demonstrated that G. ater were exploited below FO.1 at a level where spawner biomass-per-recruit was reduced to between 45% and 65% of the unexploited level. The G. ater stock was not adversely affected by current levels of fishing effort. For G. feliceps, both sexes were exploited beyond F₀.₁ where spawner biomass-per-recruit was reduced to between 30% and 22% of the unexploited level. G. feliceps were shown to be sensitive to relatively low levels of exploitation, a phenomenon attributed to their highly Kselected life-history style. Should the species become targeted for in the future, effort restrictions in the form of a closed season during the spawning and mouth-brooding period would prove effective in reducing effort and conserving the population sex ratio.
- Full Text:
- Date Issued: 1991
Aspects of the structure and function of some gastropod columellar muscles (Mollusca)
- Authors: Frescura, Mandy
- Date: 1991
- Subjects: Gastropoda -- Research Mollusks -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5642 , http://hdl.handle.net/10962/d1005324
- Description: The columellar muscle of both limpets and coiled shell gastropods is of the paramyosin smooth type. Collagen forms an integral part of the musculature constituting about 35% of the tissue. In limpets, muscle organisation is typical of a muscular hydrostat. Tightly packed blocks of muscle, dense arrays of cross-linked collagen, large muscle cells (9 µm diameter) and thick filaments (70 nm diameter, 30 µm long) produce a tough, relatively rigid but powerful muscle. In coiled shell gastropods, muscle organisation is intermediate between a muscular and a fluid hydrostat. Finer muscle cells (6 µm diameter), thick filaments (60 nm diameter) and a loose intercellular network of collagen interspersed with fluid vesicles are features of a more pliable and extensible muscle. In addition, ultrastructural differences, such as larger numbers of mitochondria and sarcolemmal invaginations distinguish the tarsal from the columellar muscle in both limpets and coiled shell gastropods. About 25% of muscle cells in most species examined, contain a novel arrangement of thin filaments with periodic electron-dense regions. These are similar in appearance to intrafusal cells and stress-fibres of non-muscle cells. Structural analysis of isolated filaments, optical diffraction and SDS gel electrophoresis confirm the, large dimensions and the paramyosin nature of the thick filaments. Microdensitometry of the gel proteins confirms the high proportion of collagen present. No significant differences in muscle ultrastructure were found between limpets from different tidal heights. Muscle attachment areas are shown to be species-specific and positively correlated to tenacity and wave exposure. The muscle attachment mechanism is similar to that described for other molluscs. It consists of a special epithelial layer and a mucous-like material at the muscle-shell interface that possibly has an adhesive function. Although the ultrastructure of Patella is very similar to that of the anterior byssus retractor of Mytilus, its mechanical behaviour is not. The muscle has a narrow working range where maximum tensions and "catch-like" contractions develop. This narrow length range is co-incident with the in situ length at which clamping occurs. It is suggested that the large component of collagen has an important influence over the mechanical behaviour of the muscle during clamping, by cross-linking in a manner similar to that described for some echinoderm connective tissues.
- Full Text:
- Date Issued: 1991
- Authors: Frescura, Mandy
- Date: 1991
- Subjects: Gastropoda -- Research Mollusks -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5642 , http://hdl.handle.net/10962/d1005324
- Description: The columellar muscle of both limpets and coiled shell gastropods is of the paramyosin smooth type. Collagen forms an integral part of the musculature constituting about 35% of the tissue. In limpets, muscle organisation is typical of a muscular hydrostat. Tightly packed blocks of muscle, dense arrays of cross-linked collagen, large muscle cells (9 µm diameter) and thick filaments (70 nm diameter, 30 µm long) produce a tough, relatively rigid but powerful muscle. In coiled shell gastropods, muscle organisation is intermediate between a muscular and a fluid hydrostat. Finer muscle cells (6 µm diameter), thick filaments (60 nm diameter) and a loose intercellular network of collagen interspersed with fluid vesicles are features of a more pliable and extensible muscle. In addition, ultrastructural differences, such as larger numbers of mitochondria and sarcolemmal invaginations distinguish the tarsal from the columellar muscle in both limpets and coiled shell gastropods. About 25% of muscle cells in most species examined, contain a novel arrangement of thin filaments with periodic electron-dense regions. These are similar in appearance to intrafusal cells and stress-fibres of non-muscle cells. Structural analysis of isolated filaments, optical diffraction and SDS gel electrophoresis confirm the, large dimensions and the paramyosin nature of the thick filaments. Microdensitometry of the gel proteins confirms the high proportion of collagen present. No significant differences in muscle ultrastructure were found between limpets from different tidal heights. Muscle attachment areas are shown to be species-specific and positively correlated to tenacity and wave exposure. The muscle attachment mechanism is similar to that described for other molluscs. It consists of a special epithelial layer and a mucous-like material at the muscle-shell interface that possibly has an adhesive function. Although the ultrastructure of Patella is very similar to that of the anterior byssus retractor of Mytilus, its mechanical behaviour is not. The muscle has a narrow working range where maximum tensions and "catch-like" contractions develop. This narrow length range is co-incident with the in situ length at which clamping occurs. It is suggested that the large component of collagen has an important influence over the mechanical behaviour of the muscle during clamping, by cross-linking in a manner similar to that described for some echinoderm connective tissues.
- Full Text:
- Date Issued: 1991
Bantu education: the black teacher's lived experience of conflict
- Ramabulana, Ronald Thifulufhelwi
- Authors: Ramabulana, Ronald Thifulufhelwi
- Date: 1991
- Subjects: Conflict (Psychology) , Teachers, Black -- Psychology Case studies , Teachers, Black -- South Africa , Education -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3039 , http://hdl.handle.net/10962/d1002548 , Conflict (Psychology) , Teachers, Black -- Psychology Case studies , Teachers, Black -- South Africa , Education -- South Africa
- Description: This work is a descriptive phenomenological study of the experience of conflict that is lived by black teachers in the Bantu Education context. Subjects are teachers from the East Rand and Eastern Cape who have high school teaching experience that ranges from 1 to 15 years. The conflict researched was defined as those situations in which the teacher faced demands or expectations from different interest groups which were incompatible or negated each other. The Subjects of this research were six teachers who were interviewed for case material. The phenomenological case study design was used. Data collection consisted of in-depth interviews while analysis followed the phenomenological method developed at Duquesne University. This was an exploratory study which identified two major forms of conflict. The first exists between the teacher's expectation of teaching and the education authorities' expectation of how and what the teacher should teach in lessons. The second form of conflict identified is that in which the teacher's allegiance to one social group or ideology is violated by the teacher's participation in a system of education that negates his/her view about the South African sociopolitical situation. In the latter case the teacher is forced to comply with commitments or demands placed on him/her which negate each other. Van den Berg's theory of plural existence was used to inform data analysis and so was the theory of cognitive change and inconsistency.
- Full Text:
- Date Issued: 1991
- Authors: Ramabulana, Ronald Thifulufhelwi
- Date: 1991
- Subjects: Conflict (Psychology) , Teachers, Black -- Psychology Case studies , Teachers, Black -- South Africa , Education -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3039 , http://hdl.handle.net/10962/d1002548 , Conflict (Psychology) , Teachers, Black -- Psychology Case studies , Teachers, Black -- South Africa , Education -- South Africa
- Description: This work is a descriptive phenomenological study of the experience of conflict that is lived by black teachers in the Bantu Education context. Subjects are teachers from the East Rand and Eastern Cape who have high school teaching experience that ranges from 1 to 15 years. The conflict researched was defined as those situations in which the teacher faced demands or expectations from different interest groups which were incompatible or negated each other. The Subjects of this research were six teachers who were interviewed for case material. The phenomenological case study design was used. Data collection consisted of in-depth interviews while analysis followed the phenomenological method developed at Duquesne University. This was an exploratory study which identified two major forms of conflict. The first exists between the teacher's expectation of teaching and the education authorities' expectation of how and what the teacher should teach in lessons. The second form of conflict identified is that in which the teacher's allegiance to one social group or ideology is violated by the teacher's participation in a system of education that negates his/her view about the South African sociopolitical situation. In the latter case the teacher is forced to comply with commitments or demands placed on him/her which negate each other. Van den Berg's theory of plural existence was used to inform data analysis and so was the theory of cognitive change and inconsistency.
- Full Text:
- Date Issued: 1991
Baptism in the scheme of salvation as understood by St. Luke with special reference to Acts 2:37-3:21
- Authors: Goodyer, Edward Arthur
- Date: 1991
- Subjects: Bible -- Commentaries , Baptism , Baptism -- Biblical teaching , Church history -- Primitive and early church, ca. 30-600
- Language: English
- Type: Thesis , Masters , MTh
- Identifier: vital:1310 , http://hdl.handle.net/10962/d1018219
- Description: The aim of this thesis is to investigate what can be discovered from Luke-Acts about early Christian baptism, recognising that the environment in which Luke's tradition developed was both Jewish and Gentile. The thesis begins with a brief survey of the Jewish practice of ritual washings. The ideas and practices which encouraged the formal rite of John the Baptist and the early church are identified and evaluated. The second chapter focuses attention on Acts 2:37-3:21. Baptism is defined in this passage (Ac. 2:38) in the context of the proclamation by Peter (Ac. 2:14-36) and the life of the community, which includes koinonia (Ac. 2:42-47), the performance of a miracle (Ac. 3:1-1 0), and a further proclamation (Ac. 3:12-26). Using the methods of redaktiongeschichte and narratological analyses, the literary unity of Luke-Acts will be shown in the light of the elements of baptism. In the third chapter the different accounts of baptism recorded in Luke-Acts will be analysed and compared in order to determine how the church tradition which Luke represents understood baptism, and what was the significance of the rite and the practice of baptism in the early church. Finally, in order to emphasise the importance in the Greek world of the ideas and example of the moral philosophers, the meaning of terms related to baptism, such as akouo, metanoeo and pisteuo, is examined in the light of both Jewish and Greek concepts. The community life of the baptised expressed also practices and ideas which appear to owe more to the Greek world than the Jewish. These concepts include parrhesia, koinonia, and the way in which Christianity is described by its members and outsiders- Christianoi, hairesis, hodos. Finally the setting of the Christian meetings in the Gentile context is discussed. The conclusion indicated by the evidence is that Christianity was organised in a form which was scarcely distinguishable from a school under a kathegetes. Baptism initiated the believer into a relationship with a teacher. It was the nature of the teacher as well as the content of the teaching which gave to Christianity its uniqueness.
- Full Text:
- Date Issued: 1991
- Authors: Goodyer, Edward Arthur
- Date: 1991
- Subjects: Bible -- Commentaries , Baptism , Baptism -- Biblical teaching , Church history -- Primitive and early church, ca. 30-600
- Language: English
- Type: Thesis , Masters , MTh
- Identifier: vital:1310 , http://hdl.handle.net/10962/d1018219
- Description: The aim of this thesis is to investigate what can be discovered from Luke-Acts about early Christian baptism, recognising that the environment in which Luke's tradition developed was both Jewish and Gentile. The thesis begins with a brief survey of the Jewish practice of ritual washings. The ideas and practices which encouraged the formal rite of John the Baptist and the early church are identified and evaluated. The second chapter focuses attention on Acts 2:37-3:21. Baptism is defined in this passage (Ac. 2:38) in the context of the proclamation by Peter (Ac. 2:14-36) and the life of the community, which includes koinonia (Ac. 2:42-47), the performance of a miracle (Ac. 3:1-1 0), and a further proclamation (Ac. 3:12-26). Using the methods of redaktiongeschichte and narratological analyses, the literary unity of Luke-Acts will be shown in the light of the elements of baptism. In the third chapter the different accounts of baptism recorded in Luke-Acts will be analysed and compared in order to determine how the church tradition which Luke represents understood baptism, and what was the significance of the rite and the practice of baptism in the early church. Finally, in order to emphasise the importance in the Greek world of the ideas and example of the moral philosophers, the meaning of terms related to baptism, such as akouo, metanoeo and pisteuo, is examined in the light of both Jewish and Greek concepts. The community life of the baptised expressed also practices and ideas which appear to owe more to the Greek world than the Jewish. These concepts include parrhesia, koinonia, and the way in which Christianity is described by its members and outsiders- Christianoi, hairesis, hodos. Finally the setting of the Christian meetings in the Gentile context is discussed. The conclusion indicated by the evidence is that Christianity was organised in a form which was scarcely distinguishable from a school under a kathegetes. Baptism initiated the believer into a relationship with a teacher. It was the nature of the teacher as well as the content of the teaching which gave to Christianity its uniqueness.
- Full Text:
- Date Issued: 1991
Beyond all words : a psychoanalytic approach to the phenomenon of mysticism in literature
- Authors: Bunyan, David Christopher
- Date: 1991
- Subjects: Mysticism in literature Mysticism -- Psychological aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2242 , http://hdl.handle.net/10962/d1002285
- Description: The principal claim of this thesis is that the mystical experience is a wide-ranging influence upon literature. It is a recurrent thematic concern of poets, novelists and playwrights; but even when mysticism is not an overt element in a text, analysis of its symbols can reveal references to emotions and experiences of a mystical character - as is frequently the case with fantasy. In a more essential way, certain widely-used techniques of poetry effectively reproduce the character of mystical events for the reader. Some theory does indeed imply that the mystical bearing is quite fundamental, at a certain level, to all creative literature. This thesis explores the link between mysticism and literature through widely differing examples, to show how it continues to be found in otherwise divergent texts and contexts. Indeed, no attempt is made to provide an exhaustive overview; rather, certain special areas of interest are represented by selected cases. Mystical elements in Modernism, for example (especially in T.S. Eliot and Virginia Woolf), are contrasted with Romantic attitudes to mysticism, which Wordsworth and Coleridge are taken to represent. A further goal is to analyse the character of literary mysticism, and to account for the connection between mysticism and literary practice. The view is adopted that the circumstances in which the infant first acquires language is of crucial importance in this regard, and that literary language often draws upon submerged recollections of these early circumstances. Literature, it is argued, can employ signs and patterns of symbolisation in ways that actually attempt to 'undo' many of the everyday functions of words. The ultimate ideal of such literary techniques is to 'reverse' the process by which language was acquired and to 'return' the reader to a state resembling pre-linguistic experience, a goal which has much in common with the ambitions of mystics. Jacques Lacan's theoretical writings touch at many points upon the early development of the child and the significance of its acquisition of language. This thesis consequently has recourse to Lacan's work and, where relevant, to related psychoanalytic writings by Sigmund Freud and Julia Kristeva. After an investigation of the main characteristics of mystical experience as such, the Introduction broadly outlines Lacan's theoretical position. Chapter 1 is concerned more specifically with Lacan's discussions of mysticism. Part Two (Chapters 2-4) deals principally with the links between mystical yearnings and the Romantic ideal of the 'sublime'. In Part Three (Chapters 5-7) the relation between mysticism and Modernist developments affecting both theme and artistic technique is examined in works by three writers: T.S. Eliot, Virginia Woolf, and Fernando Pessoa. Part Four discusses particular literary presentations of 'evil' and of 'good' as embodiments of mystical perceptions. Late nineteenth- and early twentieth-century 'supernatural' fiction is selected to represent the first case, and certain New Testament and early Christian texts the second.
- Full Text:
- Date Issued: 1991
- Authors: Bunyan, David Christopher
- Date: 1991
- Subjects: Mysticism in literature Mysticism -- Psychological aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2242 , http://hdl.handle.net/10962/d1002285
- Description: The principal claim of this thesis is that the mystical experience is a wide-ranging influence upon literature. It is a recurrent thematic concern of poets, novelists and playwrights; but even when mysticism is not an overt element in a text, analysis of its symbols can reveal references to emotions and experiences of a mystical character - as is frequently the case with fantasy. In a more essential way, certain widely-used techniques of poetry effectively reproduce the character of mystical events for the reader. Some theory does indeed imply that the mystical bearing is quite fundamental, at a certain level, to all creative literature. This thesis explores the link between mysticism and literature through widely differing examples, to show how it continues to be found in otherwise divergent texts and contexts. Indeed, no attempt is made to provide an exhaustive overview; rather, certain special areas of interest are represented by selected cases. Mystical elements in Modernism, for example (especially in T.S. Eliot and Virginia Woolf), are contrasted with Romantic attitudes to mysticism, which Wordsworth and Coleridge are taken to represent. A further goal is to analyse the character of literary mysticism, and to account for the connection between mysticism and literary practice. The view is adopted that the circumstances in which the infant first acquires language is of crucial importance in this regard, and that literary language often draws upon submerged recollections of these early circumstances. Literature, it is argued, can employ signs and patterns of symbolisation in ways that actually attempt to 'undo' many of the everyday functions of words. The ultimate ideal of such literary techniques is to 'reverse' the process by which language was acquired and to 'return' the reader to a state resembling pre-linguistic experience, a goal which has much in common with the ambitions of mystics. Jacques Lacan's theoretical writings touch at many points upon the early development of the child and the significance of its acquisition of language. This thesis consequently has recourse to Lacan's work and, where relevant, to related psychoanalytic writings by Sigmund Freud and Julia Kristeva. After an investigation of the main characteristics of mystical experience as such, the Introduction broadly outlines Lacan's theoretical position. Chapter 1 is concerned more specifically with Lacan's discussions of mysticism. Part Two (Chapters 2-4) deals principally with the links between mystical yearnings and the Romantic ideal of the 'sublime'. In Part Three (Chapters 5-7) the relation between mysticism and Modernist developments affecting both theme and artistic technique is examined in works by three writers: T.S. Eliot, Virginia Woolf, and Fernando Pessoa. Part Four discusses particular literary presentations of 'evil' and of 'good' as embodiments of mystical perceptions. Late nineteenth- and early twentieth-century 'supernatural' fiction is selected to represent the first case, and certain New Testament and early Christian texts the second.
- Full Text:
- Date Issued: 1991
Binary and ternary pyrotechnic systems containing manganese, molybdenum, barium peroxide and strontium peroxide
- Authors: Drennan, Robin Lennox
- Date: 1991
- Subjects: Thermochemistry -- Research Thermal analysis -- Research Chemistry, Analytic -- Research Manganese Molybdenum
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4411 , http://hdl.handle.net/10962/d1006765
- Description: Barium peroxide was selected as oxidant in a fundamental physico-chemical study of binary pyrotechnic systems on account of its apparently simple decomposition stoichiometry. With this selection, the choice of fuel was governed by the requirements of a self-sustaining reaction at combustion temperatures below the melting point of the platinum/rhodium thermocouples (∼1760°C) used for recording temperature-time profiles during burning, and at burning rates not exceeding the response of the sensors used to monitor combustion. Both manganese and molybdenum metal powders satisfied the above requirements. Strontium peroxide was also available as an oxidant and so the combustion of binary metal/oxidant systems using both fuels and both BaO₂ and SrO₂ oxidants was investigated. The Mn/BaO₂, MoBaO₂ and Mn/SrO₂ systems burnt over a wide range of compositions, but the range of ignitable compositions for the Mo/SrO₂ system was very limited. The linear burning rates, for all these systems, ranged from 2 to 12 mm s⁻¹ and burning rates were increased by the use of smaller particle-sizes of fuel and greater loading pressures. Inert additives generally decreased the burning rate. Temperature-time profiles were recorded for all the compositions which sustained combustion. Kinetic parameters were estimated from the shapes of these profiles using procedures developed by Hill et al and Boddington and Laye. Activation energies derived from the profiles were low (3 to 40 kJ mol⁻¹) and support suggestions that reactions at high temperatures are controlled by diffusion processes. Thermal analysis was used to identify the processes occurring in the four systems. The main exothermic events were observed to correspond approximately with the onset of oxidant decomposition. A pre-ignition reaction was tentatively identified in the Mn/BaO₂ system. Oxidation of the metal fuels was generally incomplete, probably because of the formation of protective layers of product. Activation energies, derived from thermal analysis results, were in the range of from 70 to 720 kJ mol⁻¹. Ternary systems containing either mixed fuels or mixed oxidants were also examined. No interactions hetween the fuels or between the oxidants were observed. Other techniques used included bomb calorimetry, measurement of thermal conductivity, X-ray powder diffraction, infrared spectroscopy and scanning electron microscopy.
- Full Text:
- Date Issued: 1991
- Authors: Drennan, Robin Lennox
- Date: 1991
- Subjects: Thermochemistry -- Research Thermal analysis -- Research Chemistry, Analytic -- Research Manganese Molybdenum
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4411 , http://hdl.handle.net/10962/d1006765
- Description: Barium peroxide was selected as oxidant in a fundamental physico-chemical study of binary pyrotechnic systems on account of its apparently simple decomposition stoichiometry. With this selection, the choice of fuel was governed by the requirements of a self-sustaining reaction at combustion temperatures below the melting point of the platinum/rhodium thermocouples (∼1760°C) used for recording temperature-time profiles during burning, and at burning rates not exceeding the response of the sensors used to monitor combustion. Both manganese and molybdenum metal powders satisfied the above requirements. Strontium peroxide was also available as an oxidant and so the combustion of binary metal/oxidant systems using both fuels and both BaO₂ and SrO₂ oxidants was investigated. The Mn/BaO₂, MoBaO₂ and Mn/SrO₂ systems burnt over a wide range of compositions, but the range of ignitable compositions for the Mo/SrO₂ system was very limited. The linear burning rates, for all these systems, ranged from 2 to 12 mm s⁻¹ and burning rates were increased by the use of smaller particle-sizes of fuel and greater loading pressures. Inert additives generally decreased the burning rate. Temperature-time profiles were recorded for all the compositions which sustained combustion. Kinetic parameters were estimated from the shapes of these profiles using procedures developed by Hill et al and Boddington and Laye. Activation energies derived from the profiles were low (3 to 40 kJ mol⁻¹) and support suggestions that reactions at high temperatures are controlled by diffusion processes. Thermal analysis was used to identify the processes occurring in the four systems. The main exothermic events were observed to correspond approximately with the onset of oxidant decomposition. A pre-ignition reaction was tentatively identified in the Mn/BaO₂ system. Oxidation of the metal fuels was generally incomplete, probably because of the formation of protective layers of product. Activation energies, derived from thermal analysis results, were in the range of from 70 to 720 kJ mol⁻¹. Ternary systems containing either mixed fuels or mixed oxidants were also examined. No interactions hetween the fuels or between the oxidants were observed. Other techniques used included bomb calorimetry, measurement of thermal conductivity, X-ray powder diffraction, infrared spectroscopy and scanning electron microscopy.
- Full Text:
- Date Issued: 1991
Bioenergetics of Simuliidae (Diptera) larvae in the Buffalo River (Eastern Cape Province)
- Authors: Scott, Penelope Jane
- Date: 1991
- Subjects: Simuliidae -- South Africa Diptera - -South Africa Bioenergetics , Simuliidae -- South Africa , Diptera -- South Africa , Bioenergetics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5591 , http://hdl.handle.net/10962/d1002041
- Description: Ingestion, assimilation and egestion rates of different sized filter-feeding blackfly larvae Simulium medusaeforme/hargreavesi (Diptera: Simuliidae) were determined. The effects of food type, food concentration and larval size on ingestion rates were tested. These bioenergetic parameters were used to obtain an indication of the importance of blackfly larvae in processing of particulate organic matter in the Buffalo River. Mean ingestion rates for S. medusaeforme/hargreavesi larvae feeding in the field ranged from 900 - 1600 μg/mg/h compared with those for larvae feeding in the laboratory on the same food type (260 - 680 μg/mg/h) and on algae, Chlorella sp. (590 - 1110 μg/mg/h) and Selenastrum sp. (340 - 1140 μg/mg/h). Ingestion rates obtained in this study were much higher than those reported by previous workers. These high ingestion rates are thought to be related to the low organic fraction of the suspended solids in transport in the Buffalo River. Larger larvae were found to ingest between three and six times as much food as smaller larvae. Ingestion rates were affected by the presence of nematodes and by imminent pupation. Assimilation rates on algae ranged from 2.3 - 49.0 μg/mg/h and were comparable with results of previous workers. The low assimilation efficiencies obtained for larvae feeding on algae (0.4 - 15.1 %) are due to the high ingestion rates. From a survey of the Buffalo River larvae were found to ingest between 0.00011 - 0.15 % of the suspended solids per metre of stream bed, about 1 - 7 times more than what has been reported by other workers. In the upper reaches of the Buffalo River larvae were potentially able to ingest all the suspended solids in the size class 0 - 250μ.m within a distance of 3.2km. Blackfly larvae play an important qualitative role in the functioning of a river system as they remove seston from transport and facilitate the action of gut microflora. Blackfly larvae in association with micro-organisms and other invertebrates are responsible for the majority of the retention and mineralisation of organic matter in the river
- Full Text:
- Date Issued: 1991
- Authors: Scott, Penelope Jane
- Date: 1991
- Subjects: Simuliidae -- South Africa Diptera - -South Africa Bioenergetics , Simuliidae -- South Africa , Diptera -- South Africa , Bioenergetics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5591 , http://hdl.handle.net/10962/d1002041
- Description: Ingestion, assimilation and egestion rates of different sized filter-feeding blackfly larvae Simulium medusaeforme/hargreavesi (Diptera: Simuliidae) were determined. The effects of food type, food concentration and larval size on ingestion rates were tested. These bioenergetic parameters were used to obtain an indication of the importance of blackfly larvae in processing of particulate organic matter in the Buffalo River. Mean ingestion rates for S. medusaeforme/hargreavesi larvae feeding in the field ranged from 900 - 1600 μg/mg/h compared with those for larvae feeding in the laboratory on the same food type (260 - 680 μg/mg/h) and on algae, Chlorella sp. (590 - 1110 μg/mg/h) and Selenastrum sp. (340 - 1140 μg/mg/h). Ingestion rates obtained in this study were much higher than those reported by previous workers. These high ingestion rates are thought to be related to the low organic fraction of the suspended solids in transport in the Buffalo River. Larger larvae were found to ingest between three and six times as much food as smaller larvae. Ingestion rates were affected by the presence of nematodes and by imminent pupation. Assimilation rates on algae ranged from 2.3 - 49.0 μg/mg/h and were comparable with results of previous workers. The low assimilation efficiencies obtained for larvae feeding on algae (0.4 - 15.1 %) are due to the high ingestion rates. From a survey of the Buffalo River larvae were found to ingest between 0.00011 - 0.15 % of the suspended solids per metre of stream bed, about 1 - 7 times more than what has been reported by other workers. In the upper reaches of the Buffalo River larvae were potentially able to ingest all the suspended solids in the size class 0 - 250μ.m within a distance of 3.2km. Blackfly larvae play an important qualitative role in the functioning of a river system as they remove seston from transport and facilitate the action of gut microflora. Blackfly larvae in association with micro-organisms and other invertebrates are responsible for the majority of the retention and mineralisation of organic matter in the river
- Full Text:
- Date Issued: 1991
Black is beautiful, brown is beautiful, white is beautiful : towards a rainbow culture in a united South Africa
- Authors: Sachs, Albie
- Date: 1991
- Subjects: Academic Freedom -- South Africa Culture -- South Africa Music -- South Africa Dance -- South Africa Boycotts -- South Africa Apartheid Literature and society -- South Africa South Africa -- Politics and government -- 1989-1994
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/392 , vital:19955
- Description: This is the last of a trilogy of papers on culture in a future South Africa by Albie Sachs. It is crucial that we in South Africa now set about disestablishing our culture and breaking away from the conceptual and structural strangulations of the past. Long after our country was declared a republic, we remain mentally colonised. The scrapping of social apartheid has barely touched the apartheid in our minds. We take authoritarianism, secrecy and deceit as part of our way of life. As Robert Birley used to say, we hug our chains, feel naked without them.
- Full Text:
- Date Issued: 1991
- Authors: Sachs, Albie
- Date: 1991
- Subjects: Academic Freedom -- South Africa Culture -- South Africa Music -- South Africa Dance -- South Africa Boycotts -- South Africa Apartheid Literature and society -- South Africa South Africa -- Politics and government -- 1989-1994
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/392 , vital:19955
- Description: This is the last of a trilogy of papers on culture in a future South Africa by Albie Sachs. It is crucial that we in South Africa now set about disestablishing our culture and breaking away from the conceptual and structural strangulations of the past. Long after our country was declared a republic, we remain mentally colonised. The scrapping of social apartheid has barely touched the apartheid in our minds. We take authoritarianism, secrecy and deceit as part of our way of life. As Robert Birley used to say, we hug our chains, feel naked without them.
- Full Text:
- Date Issued: 1991
Cde Alfred freed
- Authors: COSATU, TGWU
- Date: Feb 1991
- Subjects: COSATU, TGWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/115525 , vital:34152
- Description: Last year TGWU signed the first recognition agreement in South Africa for African seaman with Unicorn Line. In the past T&G signed agreements with shipping companies but these agreements covered shore workers and not workers at sea. Unicorn Line is a big national shipping company in the Grinrod Group of companies with 11 ships carrying cargo up and down the coast. Seamen work under dangerous and bad conditions with low pay. Seamen are out at sea for long periods away from their homes and families. Unicorn Line contracts out seamen to do work for a British company called Cu- nard. Cunard pay Unicorn Rl,729 a month for the seaman and Unicorn only pay the seamen R675 a month! It is also unjust because shore- based Unicorn workers earn R879 a month. Now we are negotiating wages for the first time for these seamen. The bosses gave the union a 20% increase on the minimum wage of R675. The union is also demanding a 25% increase for all workers, and the bosses are offering between 15% and 17% The bosses say that workers do not need a higher wage because they can do a lot of overtime and earn good wages! Seaman often have to work 176 hours overtime a month!
- Full Text:
- Date Issued: Feb 1991
- Authors: COSATU, TGWU
- Date: Feb 1991
- Subjects: COSATU, TGWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/115525 , vital:34152
- Description: Last year TGWU signed the first recognition agreement in South Africa for African seaman with Unicorn Line. In the past T&G signed agreements with shipping companies but these agreements covered shore workers and not workers at sea. Unicorn Line is a big national shipping company in the Grinrod Group of companies with 11 ships carrying cargo up and down the coast. Seamen work under dangerous and bad conditions with low pay. Seamen are out at sea for long periods away from their homes and families. Unicorn Line contracts out seamen to do work for a British company called Cu- nard. Cunard pay Unicorn Rl,729 a month for the seaman and Unicorn only pay the seamen R675 a month! It is also unjust because shore- based Unicorn workers earn R879 a month. Now we are negotiating wages for the first time for these seamen. The bosses gave the union a 20% increase on the minimum wage of R675. The union is also demanding a 25% increase for all workers, and the bosses are offering between 15% and 17% The bosses say that workers do not need a higher wage because they can do a lot of overtime and earn good wages! Seaman often have to work 176 hours overtime a month!
- Full Text:
- Date Issued: Feb 1991
Cecil Rhodes, the Glen Grey Act, and the labour question in the politics of the Cape Colony
- Authors: Thompson, Richard James
- Date: 1991
- Subjects: Rhodes, Cecil, 1853-1902 Labor policy -- South Africa -- History Labor supply -- South Africa -- History Black people -- Employment -- South Africa -- History Cape of Good Hope (South Africa) -- History -- 1872-1910 Cape of Good Hope (South Africa) -- Politics and government -- 1872-1910
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2562 , http://hdl.handle.net/10962/d1002415
- Description: Chapter One: The provisions of the Glen Grey Act of 1894 are summarised. The memoirs of contemporaries are discussed and the historical literature on the Act from 1913 to the present is surveyed. The likelihood of the land tenure provisions of the Act forcing the people of Glen Grey (or the people of other districts that came under the operation of the Act) to seek employment is noted. It is evident that there is an increasing emphasis in the literature on labour concerns rather than on the disenfranchising effects and local government provisions of the Act. It is often assumed that the labour force generated by the Act was meant for the Transvaal gold mines. Chapter Two: The relevance of the labour needs of the Indwe collieries is investigated. These mines lay adjacent to Glen Grey and might have been expected to draw their labour thence if the Act had been effective. Rhodes, the author of the Act and prime minister of the Cape, had bought shares in the collieries for De Beers shortly before the Act was passed, which made a possible connection more intriguing. No causal link between De Beers' interests and the Act could be demonstrated; nor do the collieries seem to have employed many people from Glen Grey. Chapter Three: Examines the Cape colonists' complaints about shortage of labour from 1807 to the eve of the Glen Grey Act, and investigates various official measures to promote the labour supply. The Glen Grey Act was not the first labour measure passed at the Cape, and it seems likely, therefore, that the labour needs of the Cape, rather than the Transvaal, were uppermost in the minds of those responsible for the Act. Chapter Four examines Rhodes's political position in the 1890s and shows him to be increasingly dependent on the parliamentary support of the Afrikaner Bond to stay in office. Since the Bond was an agricultural interest group it seems likely that labour for Cape farms, rather than Transvaal gold mines, was what the Act was supposed to provide. With that Rhodes could readily agree, since he wanted to promote the agricultural development of the Cape. However, the Bond wanted to be able to buy land in Glen Grey (and other district in which the Act was proclaimed). Rhodes wanted to keep such districts as 'reservoirs of labour' so he could not give the Bond all of what they wanted, i.e. Glen Grey titles to be alienable. His manoeuvring to keep the Bond supporting the Bill while not making the land readily salable is described. (In the end the land was alienable with the consent of the government -- consent that a Rhodes ministry would not give, but that another might.) Rhodes's desire to obtain the administration of Bechuanaland for his Chartered Company, and his need therefore to reassure the Colonial Office and humanitarian opinion that he could be trusted to rule over blacks, are pointed out as other possible motivations for the Act, which Rhodes tried hard to present as an enlightened piece of legislation. The course of the Act through the Cape parliament, and the opposition of Cape liberals to the Act, is described. Chapter Five: The mentalité of the Cape colonists as regards race, liquor, land tenure and other political issues is described. Chapter Six: The reaction to the Act of Cape blacks and sympathetic whites, British humanitarians and the Colonial Office is described. The contemporary concern with reserving land for blacks is noted, as well as concern over the morality of economically coerced labour. This is in contrast to the modern concentration on labour almost to the exclusion of other issues in regard to the Glen Grey Act. The unsuccessful efforts of Cape blacks and British humanitarians to have the imperial government veto the Act are described. Rhodes's influence over the Colonial Office is described.
- Full Text:
- Date Issued: 1991
- Authors: Thompson, Richard James
- Date: 1991
- Subjects: Rhodes, Cecil, 1853-1902 Labor policy -- South Africa -- History Labor supply -- South Africa -- History Black people -- Employment -- South Africa -- History Cape of Good Hope (South Africa) -- History -- 1872-1910 Cape of Good Hope (South Africa) -- Politics and government -- 1872-1910
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2562 , http://hdl.handle.net/10962/d1002415
- Description: Chapter One: The provisions of the Glen Grey Act of 1894 are summarised. The memoirs of contemporaries are discussed and the historical literature on the Act from 1913 to the present is surveyed. The likelihood of the land tenure provisions of the Act forcing the people of Glen Grey (or the people of other districts that came under the operation of the Act) to seek employment is noted. It is evident that there is an increasing emphasis in the literature on labour concerns rather than on the disenfranchising effects and local government provisions of the Act. It is often assumed that the labour force generated by the Act was meant for the Transvaal gold mines. Chapter Two: The relevance of the labour needs of the Indwe collieries is investigated. These mines lay adjacent to Glen Grey and might have been expected to draw their labour thence if the Act had been effective. Rhodes, the author of the Act and prime minister of the Cape, had bought shares in the collieries for De Beers shortly before the Act was passed, which made a possible connection more intriguing. No causal link between De Beers' interests and the Act could be demonstrated; nor do the collieries seem to have employed many people from Glen Grey. Chapter Three: Examines the Cape colonists' complaints about shortage of labour from 1807 to the eve of the Glen Grey Act, and investigates various official measures to promote the labour supply. The Glen Grey Act was not the first labour measure passed at the Cape, and it seems likely, therefore, that the labour needs of the Cape, rather than the Transvaal, were uppermost in the minds of those responsible for the Act. Chapter Four examines Rhodes's political position in the 1890s and shows him to be increasingly dependent on the parliamentary support of the Afrikaner Bond to stay in office. Since the Bond was an agricultural interest group it seems likely that labour for Cape farms, rather than Transvaal gold mines, was what the Act was supposed to provide. With that Rhodes could readily agree, since he wanted to promote the agricultural development of the Cape. However, the Bond wanted to be able to buy land in Glen Grey (and other district in which the Act was proclaimed). Rhodes wanted to keep such districts as 'reservoirs of labour' so he could not give the Bond all of what they wanted, i.e. Glen Grey titles to be alienable. His manoeuvring to keep the Bond supporting the Bill while not making the land readily salable is described. (In the end the land was alienable with the consent of the government -- consent that a Rhodes ministry would not give, but that another might.) Rhodes's desire to obtain the administration of Bechuanaland for his Chartered Company, and his need therefore to reassure the Colonial Office and humanitarian opinion that he could be trusted to rule over blacks, are pointed out as other possible motivations for the Act, which Rhodes tried hard to present as an enlightened piece of legislation. The course of the Act through the Cape parliament, and the opposition of Cape liberals to the Act, is described. Chapter Five: The mentalité of the Cape colonists as regards race, liquor, land tenure and other political issues is described. Chapter Six: The reaction to the Act of Cape blacks and sympathetic whites, British humanitarians and the Colonial Office is described. The contemporary concern with reserving land for blacks is noted, as well as concern over the morality of economically coerced labour. This is in contrast to the modern concentration on labour almost to the exclusion of other issues in regard to the Glen Grey Act. The unsuccessful efforts of Cape blacks and British humanitarians to have the imperial government veto the Act are described. Rhodes's influence over the Colonial Office is described.
- Full Text:
- Date Issued: 1991
Chemical studies of 1,5-benzodioxepanones
- Authors: Gelebe, Aifheli Carlson
- Date: 1991
- Subjects: Biochemistry , Pigments (Biology) , Benzopyrans
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4423 , http://hdl.handle.net/10962/d1006895 , Biochemistry , Pigments (Biology) , Benzopyrans
- Description: Chromone and flavanone derivatives were prepared by condensation of the corresponding 2-hydroxyacetophenones (with diethyl oxalate or the appropriate aromatic aldehyde respectively) and cyclisation of the condensation products. Saeyer-Villiger rearrangement of these flavanones, with MCPBA, resulted in expansion of the C-ring. Spectroscopic techniques have been used to establish the regioselectivity of the rearrangement and hence, the identity of the rearranged products as 1,5-benzodioxepan-4-ones. The 1,5-benzodioxepan-4-ones were subjected to detailed ¹H and ¹³C n.m.r. analysis and a combination of low and high resolution mass spectrometry has been used to study the mass fragmentation pathways of these ring-expanded products.
- Full Text:
- Date Issued: 1991
- Authors: Gelebe, Aifheli Carlson
- Date: 1991
- Subjects: Biochemistry , Pigments (Biology) , Benzopyrans
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4423 , http://hdl.handle.net/10962/d1006895 , Biochemistry , Pigments (Biology) , Benzopyrans
- Description: Chromone and flavanone derivatives were prepared by condensation of the corresponding 2-hydroxyacetophenones (with diethyl oxalate or the appropriate aromatic aldehyde respectively) and cyclisation of the condensation products. Saeyer-Villiger rearrangement of these flavanones, with MCPBA, resulted in expansion of the C-ring. Spectroscopic techniques have been used to establish the regioselectivity of the rearrangement and hence, the identity of the rearranged products as 1,5-benzodioxepan-4-ones. The 1,5-benzodioxepan-4-ones were subjected to detailed ¹H and ¹³C n.m.r. analysis and a combination of low and high resolution mass spectrometry has been used to study the mass fragmentation pathways of these ring-expanded products.
- Full Text:
- Date Issued: 1991
Cognitive-behavioural treatment of essential hypertension in an urban Xhosa woman: a case study
- Authors: Losinsky, Rory
- Date: 1991
- Subjects: Xhosa (African people) -- Psychology , Women, Xhosa -- Psychology , Hypertension -- Psychosomatic aspects
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3010 , http://hdl.handle.net/10962/d1002519 , Xhosa (African people) -- Psychology , Women, Xhosa -- Psychology , Hypertension -- Psychosomatic aspects
- Description: Essential hypertension has a complex and multiple biological, psychological and social aetiology and remains one of the most serious physical disorders affecting the Black population of South Africa today. Pharmacological treatment has been the predominant approach to blood pressure reduction, but considering that the greater part of essential hypertension has its origin in biobehavioural and cognitive functioning a non-pharmacological treatment approach to essential hypertension is receiving extensive interest both in research and therapeutic practice. This study attempted to implement a specific cognitive-behavioural treatment "package' which was tailored to the emergent aetiology in an urban Xhosa woman suffering from Mild hypertension who was on antihypertensive medication and to evaluate the treatment using a single case-study methodology. A combination of relaxation training and cognitive-behavioural modification was provided over a fifteen week period and evaluated both quantitatively and qualitatively. It was found that a combination of over-weight, occupational stress and anger could have contributed and/or caused the patient's hypertension. The results also show a significant reduction in blood pressure during the treatment phase as well as a reduction in weight, experienced anxiety and angry emotion, and by the end of the study the patient's blood pressure had been reduced to normal levels. Finally the feasibility of using such a treatment approach is discussed in relation to the South African context and the case study method is evaluated as a research tool in light of the findings.
- Full Text:
- Date Issued: 1991
- Authors: Losinsky, Rory
- Date: 1991
- Subjects: Xhosa (African people) -- Psychology , Women, Xhosa -- Psychology , Hypertension -- Psychosomatic aspects
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3010 , http://hdl.handle.net/10962/d1002519 , Xhosa (African people) -- Psychology , Women, Xhosa -- Psychology , Hypertension -- Psychosomatic aspects
- Description: Essential hypertension has a complex and multiple biological, psychological and social aetiology and remains one of the most serious physical disorders affecting the Black population of South Africa today. Pharmacological treatment has been the predominant approach to blood pressure reduction, but considering that the greater part of essential hypertension has its origin in biobehavioural and cognitive functioning a non-pharmacological treatment approach to essential hypertension is receiving extensive interest both in research and therapeutic practice. This study attempted to implement a specific cognitive-behavioural treatment "package' which was tailored to the emergent aetiology in an urban Xhosa woman suffering from Mild hypertension who was on antihypertensive medication and to evaluate the treatment using a single case-study methodology. A combination of relaxation training and cognitive-behavioural modification was provided over a fifteen week period and evaluated both quantitatively and qualitatively. It was found that a combination of over-weight, occupational stress and anger could have contributed and/or caused the patient's hypertension. The results also show a significant reduction in blood pressure during the treatment phase as well as a reduction in weight, experienced anxiety and angry emotion, and by the end of the study the patient's blood pressure had been reduced to normal levels. Finally the feasibility of using such a treatment approach is discussed in relation to the South African context and the case study method is evaluated as a research tool in light of the findings.
- Full Text:
- Date Issued: 1991