An investigation of the structure of the Southern Hemisphere radio-meteor streams
- Authors: Roux, David Gerhardus
- Date: 1988
- Subjects: Radio meteorology -- Southern Hemisphere , Solar system
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5448 , http://hdl.handle.net/10962/d1004587 , Radio meteorology -- Southern Hemisphere , Solar system
- Description: Our current knowledge of the Solar System, with a particular emphasis on the systems of interplanetary objects, is reviewed, and the theory of meteors and the reflection of radio waves from meteoric ionization is then discussed. A description of the meteor radar is given and a method of calibrating the antenna beam is developed. The main project comprises two parts: (a) A general survey of the radar echorate for 20 major and minor meteor streams and the sporadic meteor background, conducted from Grahamstown over the period 1986 April to 1988 January, is described. Definite shower activity was observed for all of the major and some of the minor showers. (b) Based on a scheme proposed by previous workers (Morton & Jones), a method of recovering meteor radiant distributions from the distribution of echo directions is developed. We devise a technique of compensating for possible distortions of the resulting radiant maps, which may arise due to the arisotropic antenna beam. This involves a system of echo-weighting. Radiant maps which showed considerably less distortion than those of the above workers were obtained without the weighting procedure. It is concluded that, although the method in its present form introduces spurious features into the maps, the principle is sound and should eventually be refined to produce the desired compensation
- Full Text:
- Date Issued: 1988
- Authors: Roux, David Gerhardus
- Date: 1988
- Subjects: Radio meteorology -- Southern Hemisphere , Solar system
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5448 , http://hdl.handle.net/10962/d1004587 , Radio meteorology -- Southern Hemisphere , Solar system
- Description: Our current knowledge of the Solar System, with a particular emphasis on the systems of interplanetary objects, is reviewed, and the theory of meteors and the reflection of radio waves from meteoric ionization is then discussed. A description of the meteor radar is given and a method of calibrating the antenna beam is developed. The main project comprises two parts: (a) A general survey of the radar echorate for 20 major and minor meteor streams and the sporadic meteor background, conducted from Grahamstown over the period 1986 April to 1988 January, is described. Definite shower activity was observed for all of the major and some of the minor showers. (b) Based on a scheme proposed by previous workers (Morton & Jones), a method of recovering meteor radiant distributions from the distribution of echo directions is developed. We devise a technique of compensating for possible distortions of the resulting radiant maps, which may arise due to the arisotropic antenna beam. This involves a system of echo-weighting. Radiant maps which showed considerably less distortion than those of the above workers were obtained without the weighting procedure. It is concluded that, although the method in its present form introduces spurious features into the maps, the principle is sound and should eventually be refined to produce the desired compensation
- Full Text:
- Date Issued: 1988
An analysis of the relationship between the sources of conflict and the stages in the conflict process within the marketing channel comprising retail pharmacy managers and medical doctors
- Authors: Futter, William Thomas
- Date: 1988
- Subjects: Medicine -- Formulae, receipts, prescriptions -- Marketing , Marketing channels , Marketing research , Drugs -- Marketing
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1161 , http://hdl.handle.net/10962/d1001628
- Description: Marketing channels have traditionally been examined as commercial conduits the sale objective of which was to facilitate the flow of goods from producer to consumer. This approach emphasized functional and structural aspects of the channel and was primarily concerned with the efficiency of the distribution system. During the last two decades, marketing channels have increasingly been viewed as social systems affected by the behavioural dimensions of power, conflict, roles and communication. The rapid growth of vertical marketing systems with greater authority and interdependence between channel members, have stimulated interest in this field. Nevertheless, research has been limited and characterized by methodological problems and conceptual differences about the definitions of behavioural variables and their relationships. Some attempts have been made to develop an integrated framework within which to conduct research into channel relationships, but the validity and relaibility of these models has not been tested. This research project examined the relationship between the sources of conflict and stages in the conflict process. The sources of conflict were subdivided into attitudinal and structural categories, the latter being concerned with goal differences, the desire for autonomy in the face of interdependence and competition for scarce resources. The conflict process model adopted by the author assumes the existence of stages of latency, feeling, perception, manifestation and aftermath in each conflict episode. The first four were treated as separate behavioural states for which different levels of conflict intensity were measured. In order to provide greater explanatory power to the results of the analysis, the perceptions of two respondent groups were identified, namely the leader group, consisting of channel members responsible for the overall strategic interests of the channel, and the affected group, consisting of channel members who had been adversly affected by the activities of their partners in the channel dyad. In addition, respondents were asked to identify separately, their perceptions of the macro and micro levels of conflict in the four conflict states. The marketing channel for prescription medicines was selected for the study. The focal dyad consisted of retail pharmacy managers and doctors with single respondent perceptual measures being obtained from the retail pharmacy managers. A mail survey of all the retail pharmacy managers in South Africa, South West Africa/Namibia, and the independent homelands conducted in July 1987 resulted in a 40% response rate (1031 returns). Tests indicated statistically significant differences between the perceptual measures representing the sources and stages of conflict, the macro and micro levels of the stages of conflict and between the leader and the non-leader groups and the affected and non-affected groups. A sequential hierarchy in the level of conflict measured in the behavioural states was indicated, with decreasing levels of conflict being identified in states of latency, perception, feeling and manifestations, respectively. An analysis of the results revealed that attitudinal sources of conflict were more important that structural sources in measures of perceptions, feelings and manifestations of conflict behaviour. In the latent conflict state, structural sources assumed greater importance than attitudinal sources. In most of the measures, the sources of conflict were more correlated with perceptions of conflict at the macro level than the micro level. The exception was manifest conflict for which micro conflict levels were more important. The major sources of conflict were differences in perceptions, differences in goals and the lack of autonomy. The leader group indicated a particular concern for attitudinal factors, particularly communication difficulties. The affected group, whilst identifying attitudinal factors as being the most important, was especially concerned with their lack of autonomy from the doctor, rather than the competition for scarce resources which could have been expected. An overall assessment of the level of conflict between retail pharmacy managers and doctors indicated that the channel dyad was relatively free from conflict. Relationships were characterized by a degree of satisfaction, some degree of harmony and little evidence of conflict behaviour.
- Full Text:
- Date Issued: 1988
- Authors: Futter, William Thomas
- Date: 1988
- Subjects: Medicine -- Formulae, receipts, prescriptions -- Marketing , Marketing channels , Marketing research , Drugs -- Marketing
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1161 , http://hdl.handle.net/10962/d1001628
- Description: Marketing channels have traditionally been examined as commercial conduits the sale objective of which was to facilitate the flow of goods from producer to consumer. This approach emphasized functional and structural aspects of the channel and was primarily concerned with the efficiency of the distribution system. During the last two decades, marketing channels have increasingly been viewed as social systems affected by the behavioural dimensions of power, conflict, roles and communication. The rapid growth of vertical marketing systems with greater authority and interdependence between channel members, have stimulated interest in this field. Nevertheless, research has been limited and characterized by methodological problems and conceptual differences about the definitions of behavioural variables and their relationships. Some attempts have been made to develop an integrated framework within which to conduct research into channel relationships, but the validity and relaibility of these models has not been tested. This research project examined the relationship between the sources of conflict and stages in the conflict process. The sources of conflict were subdivided into attitudinal and structural categories, the latter being concerned with goal differences, the desire for autonomy in the face of interdependence and competition for scarce resources. The conflict process model adopted by the author assumes the existence of stages of latency, feeling, perception, manifestation and aftermath in each conflict episode. The first four were treated as separate behavioural states for which different levels of conflict intensity were measured. In order to provide greater explanatory power to the results of the analysis, the perceptions of two respondent groups were identified, namely the leader group, consisting of channel members responsible for the overall strategic interests of the channel, and the affected group, consisting of channel members who had been adversly affected by the activities of their partners in the channel dyad. In addition, respondents were asked to identify separately, their perceptions of the macro and micro levels of conflict in the four conflict states. The marketing channel for prescription medicines was selected for the study. The focal dyad consisted of retail pharmacy managers and doctors with single respondent perceptual measures being obtained from the retail pharmacy managers. A mail survey of all the retail pharmacy managers in South Africa, South West Africa/Namibia, and the independent homelands conducted in July 1987 resulted in a 40% response rate (1031 returns). Tests indicated statistically significant differences between the perceptual measures representing the sources and stages of conflict, the macro and micro levels of the stages of conflict and between the leader and the non-leader groups and the affected and non-affected groups. A sequential hierarchy in the level of conflict measured in the behavioural states was indicated, with decreasing levels of conflict being identified in states of latency, perception, feeling and manifestations, respectively. An analysis of the results revealed that attitudinal sources of conflict were more important that structural sources in measures of perceptions, feelings and manifestations of conflict behaviour. In the latent conflict state, structural sources assumed greater importance than attitudinal sources. In most of the measures, the sources of conflict were more correlated with perceptions of conflict at the macro level than the micro level. The exception was manifest conflict for which micro conflict levels were more important. The major sources of conflict were differences in perceptions, differences in goals and the lack of autonomy. The leader group indicated a particular concern for attitudinal factors, particularly communication difficulties. The affected group, whilst identifying attitudinal factors as being the most important, was especially concerned with their lack of autonomy from the doctor, rather than the competition for scarce resources which could have been expected. An overall assessment of the level of conflict between retail pharmacy managers and doctors indicated that the channel dyad was relatively free from conflict. Relationships were characterized by a degree of satisfaction, some degree of harmony and little evidence of conflict behaviour.
- Full Text:
- Date Issued: 1988
History outside the classroom : the use of museums in the teaching of history
- Authors: Rheeder, Willem Lodewikus
- Date: 1988
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:21147 , http://hdl.handle.net/10962/6584
- Description: In the modern technical age in which we live , knowledge of the past is often pushed into the background As a result of this history teaching often becomes an attempt to pump an assortment of arbitrary facts into the minds of scholars by means of 'chalk and talk' methods. Educationists all over the world see this tendency as the major reason for the declining popularity of history as a school subject . In other parts of the world, such as the United States of America and Britain, education departments and teachers have faced this challenge and it seems as if the status of history as a school subject has been retrieved . In the Republic of South Africa the new core syllabuses are geared towards moving away from the earlier restricted emphasis of facts, but there is very little guidance on how teachers are to implement this 'new' approach, which focus more on the "how" of history and on the teaching of historical skills In this thesis museum visits as one of the modes of outdoor education, is studied as a possible additional alternative method of teaching history in South African schools . A study is made of what museums are and of the possible educational values of museum visits. It soon becomes clear that the major beneficial aspect of museum visits could be the acquisition of historical skills such as comprehension, application , analysis , synthesis and evaluation In order to gain insight into the practical implementation of museum visits several groups were observed while visiting the museum, after which two pilot studies were undertaken in the Kaffrarian and South African Missionary Museums with Black standard ten pupils and senior student teachers . Attention is given to aspects of administrative , teacher and pupil preparation the implementation of the visit and the types of follow-up work which could be used. During and after the implementation of the two pilot studies certain characteristic problems were experienced these are : the compilation of worksheets and cultural differences . The most important of language difficulties : It also became clear that education officers at museums find it difficult to cope with the special educational needs of the different visiting groups . For this reason an approach is advocated where the teacher compiles his own worksheet suited to the needs of his specific pupils Guidelines are given as to how pre-planned worksheets could be adapted : how different question-types could be used to compile a worksheet in which skills ascend from the simple to the complex: and how worksheets could be compiled for mixed ability groups. It is hoped that this thesis will lead to renewed interest in the use of the museum in the teaching of history and will serve as guideline for teachers planning to take history "out of its coffin".
- Full Text:
- Date Issued: 1988
- Authors: Rheeder, Willem Lodewikus
- Date: 1988
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:21147 , http://hdl.handle.net/10962/6584
- Description: In the modern technical age in which we live , knowledge of the past is often pushed into the background As a result of this history teaching often becomes an attempt to pump an assortment of arbitrary facts into the minds of scholars by means of 'chalk and talk' methods. Educationists all over the world see this tendency as the major reason for the declining popularity of history as a school subject . In other parts of the world, such as the United States of America and Britain, education departments and teachers have faced this challenge and it seems as if the status of history as a school subject has been retrieved . In the Republic of South Africa the new core syllabuses are geared towards moving away from the earlier restricted emphasis of facts, but there is very little guidance on how teachers are to implement this 'new' approach, which focus more on the "how" of history and on the teaching of historical skills In this thesis museum visits as one of the modes of outdoor education, is studied as a possible additional alternative method of teaching history in South African schools . A study is made of what museums are and of the possible educational values of museum visits. It soon becomes clear that the major beneficial aspect of museum visits could be the acquisition of historical skills such as comprehension, application , analysis , synthesis and evaluation In order to gain insight into the practical implementation of museum visits several groups were observed while visiting the museum, after which two pilot studies were undertaken in the Kaffrarian and South African Missionary Museums with Black standard ten pupils and senior student teachers . Attention is given to aspects of administrative , teacher and pupil preparation the implementation of the visit and the types of follow-up work which could be used. During and after the implementation of the two pilot studies certain characteristic problems were experienced these are : the compilation of worksheets and cultural differences . The most important of language difficulties : It also became clear that education officers at museums find it difficult to cope with the special educational needs of the different visiting groups . For this reason an approach is advocated where the teacher compiles his own worksheet suited to the needs of his specific pupils Guidelines are given as to how pre-planned worksheets could be adapted : how different question-types could be used to compile a worksheet in which skills ascend from the simple to the complex: and how worksheets could be compiled for mixed ability groups. It is hoped that this thesis will lead to renewed interest in the use of the museum in the teaching of history and will serve as guideline for teachers planning to take history "out of its coffin".
- Full Text:
- Date Issued: 1988
An integration of reduction and logic for programming languages
- Authors: Wright, David A
- Date: 1988
- Subjects: Logic programming languages , Programming languages (Electronic computers)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4570 , http://hdl.handle.net/10962/d1002035
- Description: A new declarative language is presented which captures the expressibility of both logic programming languages and functional languages. This is achieved by conditional graph rewriting, with full unification as the parameter passing mechanism. The syntax and semantics are described both formally and informally, and examples are offered to support the expressibility claim made above. The language design is of further interest due to its uniformity and the inclusion of a novel mechanism for type inference in the presence of derived type hierarchies
- Full Text:
- Date Issued: 1988
- Authors: Wright, David A
- Date: 1988
- Subjects: Logic programming languages , Programming languages (Electronic computers)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4570 , http://hdl.handle.net/10962/d1002035
- Description: A new declarative language is presented which captures the expressibility of both logic programming languages and functional languages. This is achieved by conditional graph rewriting, with full unification as the parameter passing mechanism. The syntax and semantics are described both formally and informally, and examples are offered to support the expressibility claim made above. The language design is of further interest due to its uniformity and the inclusion of a novel mechanism for type inference in the presence of derived type hierarchies
- Full Text:
- Date Issued: 1988
A contribution towards an understanding of the intensive tank culture of an ornamental Cichlid, Aulonocara Baenschi, from Chipoka, Lake Malawi
- Authors: Impson, N D (Neville Dean)
- Date: 1988
- Subjects: Cichlids -- Nysas, Lake , Cichlids -- Nyasa, Lake -- Physiology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5208 , http://hdl.handle.net/10962/d1004596 , Cichlids -- Nysas, Lake , Cichlids -- Nyasa, Lake -- Physiology
- Description: The intensive tank culture of ornamental mouthbrooding cichlids poses several problems which limit their aquaculture potential. This project addressed some of these problems for Aulonocara baenschi. The production of juveniles in 2501 aquaria was accelerated when: a) aquaria were equipped with refuges, b) females of less than 70mm in standard length were used as broodstock, c) mouthbrooding females were replaced with gravid females at seven day intervals, and d) embryos were removed from the mouths of females at replacement times for artificial incubation. Two sex ratios also accelerated juvenile production. The sex ratio (male:females) 1:30 yielded the highest spawning returns per tank, and therefore represented the most effective utilization of aquarium space (a critical consideration for the small-scale culturist). Contrastingly, the sex ratio 1:12 yielded the highest clutch sizes and a high percentage female spawning return, and therefore represented the most effective utilization of broodstock (an important consideration for culturists inhibited by financial constraints or having an abundance of culture vessels). The reproductive behaviour of A. baenschi was described. Emphasis was given to aspects of reproduction of relevance to culture, for example; spawning times and seasons, clutch size and its relationship with female size, age and size of sexes at first spawning, embryo development rate and size of first swimming juveniles. The slow growth rate of juveniles, combined with a late attainment of marketable size (± seven months) was a major limitation affecting the cuIture potential of A. baenschi. Two factors favouring the cuIture of this species was the high survival rate recorded for both adults and juveniles, and the comparatively high prices fetched by fish on domestic wholesale markets (R4,00 per fish). It is recommended that A. baenschi should not be cultured exclusively for the relatively small South African ornamental fish market. A more profitable strategy for domestic culturists should involve a major production effort with A. baenschi and other desirable species of Aulonocara (e.g . A. ethelwynnae; A. hansbaenschi; A. stuartgranti & A. maylandi) for foreign markets (in particular, the U.S.A.; Western Europe & Japan). Not only are these markets massive, but prevailing exchange rates of the Rand with these currencies favour such a strategy.
- Full Text:
- Date Issued: 1988
- Authors: Impson, N D (Neville Dean)
- Date: 1988
- Subjects: Cichlids -- Nysas, Lake , Cichlids -- Nyasa, Lake -- Physiology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5208 , http://hdl.handle.net/10962/d1004596 , Cichlids -- Nysas, Lake , Cichlids -- Nyasa, Lake -- Physiology
- Description: The intensive tank culture of ornamental mouthbrooding cichlids poses several problems which limit their aquaculture potential. This project addressed some of these problems for Aulonocara baenschi. The production of juveniles in 2501 aquaria was accelerated when: a) aquaria were equipped with refuges, b) females of less than 70mm in standard length were used as broodstock, c) mouthbrooding females were replaced with gravid females at seven day intervals, and d) embryos were removed from the mouths of females at replacement times for artificial incubation. Two sex ratios also accelerated juvenile production. The sex ratio (male:females) 1:30 yielded the highest spawning returns per tank, and therefore represented the most effective utilization of aquarium space (a critical consideration for the small-scale culturist). Contrastingly, the sex ratio 1:12 yielded the highest clutch sizes and a high percentage female spawning return, and therefore represented the most effective utilization of broodstock (an important consideration for culturists inhibited by financial constraints or having an abundance of culture vessels). The reproductive behaviour of A. baenschi was described. Emphasis was given to aspects of reproduction of relevance to culture, for example; spawning times and seasons, clutch size and its relationship with female size, age and size of sexes at first spawning, embryo development rate and size of first swimming juveniles. The slow growth rate of juveniles, combined with a late attainment of marketable size (± seven months) was a major limitation affecting the cuIture potential of A. baenschi. Two factors favouring the cuIture of this species was the high survival rate recorded for both adults and juveniles, and the comparatively high prices fetched by fish on domestic wholesale markets (R4,00 per fish). It is recommended that A. baenschi should not be cultured exclusively for the relatively small South African ornamental fish market. A more profitable strategy for domestic culturists should involve a major production effort with A. baenschi and other desirable species of Aulonocara (e.g . A. ethelwynnae; A. hansbaenschi; A. stuartgranti & A. maylandi) for foreign markets (in particular, the U.S.A.; Western Europe & Japan). Not only are these markets massive, but prevailing exchange rates of the Rand with these currencies favour such a strategy.
- Full Text:
- Date Issued: 1988
Sequence in the mathematics syllabus : an investigation of the Senior Secondary Mathematics Syllabus (July 1984) of the Cape Education Department attempting to reconcile the demands of the strictly mathematical order and the developmental needs of pupils, modified by the mathematical potential of the electronic calculator : some teaching strategies resulting from new influences in the syllabus
- Authors: Breetzke, Peter Roland
- Date: 1988
- Subjects: Mathematics -- Study and teaching (Secondary) -- South Africa , Calculators , Mathematics -- South Africa -- Outlines, syllabi, etc.
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1364 , http://hdl.handle.net/10962/d1001430
- Description: This study was motivated by the latest revision of the mathematics syllabuses of the Cape Education Department. The most important changes to content in the Senior Secondary Mathematics Syllabus (July 1984) are the introduction of calculus and linear programming, the substitution of a section on analytical geometry for vector algebra and the recall of the remainder and factor theorems. The way in which these changes were introduced left the task of integrating them into the teaching process in the hands of individual teachers. This is a task of extreme importance. If one's classroom practice is to simply plough one's way through the syllabus, one loses many opportunities to make the study of mathematics meaningful and worthwhile. Accepting the view of the spiral nature of the curriculum where one returns to concepts and procedures at increasing levels of sophistication, one needs to identify the position of topics in this spiral and to trace their conceptual foundations. Analytical geometry is in particular need of this treatment. Similarly there are many opportunities for preparing for the introduction of calculus. If the teaching of calculus is left until the last moments of the Standard 10 year without proper groundwork, the pupil will be left with little time to develop an understanding of the concepts involved. It is the advent of calculators which presents the greatest challenge to mathematics education. We ignore this challenge to the detriment of our teaching. Taken seriously calculators have the potential to exert a radical influence on the content of curricula and examinations. They bring into question the time we spend on teaching arithmetic algorithms and the priority given to algebraic manipulation. Numercial methods gain new prominence. Calculators can even breathe new life into the existing curriculum. Their computing power can be harnessed not only to carry out specific calculations but also to introduce new topics and for concept reinforcement. The purpose of this study has been to bring about a proper integration of the new sections into the existing syllabus and to give some instances of how the calculator can become an integral part of the teaching/learning process
- Full Text:
- Date Issued: 1988
- Authors: Breetzke, Peter Roland
- Date: 1988
- Subjects: Mathematics -- Study and teaching (Secondary) -- South Africa , Calculators , Mathematics -- South Africa -- Outlines, syllabi, etc.
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1364 , http://hdl.handle.net/10962/d1001430
- Description: This study was motivated by the latest revision of the mathematics syllabuses of the Cape Education Department. The most important changes to content in the Senior Secondary Mathematics Syllabus (July 1984) are the introduction of calculus and linear programming, the substitution of a section on analytical geometry for vector algebra and the recall of the remainder and factor theorems. The way in which these changes were introduced left the task of integrating them into the teaching process in the hands of individual teachers. This is a task of extreme importance. If one's classroom practice is to simply plough one's way through the syllabus, one loses many opportunities to make the study of mathematics meaningful and worthwhile. Accepting the view of the spiral nature of the curriculum where one returns to concepts and procedures at increasing levels of sophistication, one needs to identify the position of topics in this spiral and to trace their conceptual foundations. Analytical geometry is in particular need of this treatment. Similarly there are many opportunities for preparing for the introduction of calculus. If the teaching of calculus is left until the last moments of the Standard 10 year without proper groundwork, the pupil will be left with little time to develop an understanding of the concepts involved. It is the advent of calculators which presents the greatest challenge to mathematics education. We ignore this challenge to the detriment of our teaching. Taken seriously calculators have the potential to exert a radical influence on the content of curricula and examinations. They bring into question the time we spend on teaching arithmetic algorithms and the priority given to algebraic manipulation. Numercial methods gain new prominence. Calculators can even breathe new life into the existing curriculum. Their computing power can be harnessed not only to carry out specific calculations but also to introduce new topics and for concept reinforcement. The purpose of this study has been to bring about a proper integration of the new sections into the existing syllabus and to give some instances of how the calculator can become an integral part of the teaching/learning process
- Full Text:
- Date Issued: 1988
Men's repression of their emotional life as a counterpart of their oppression of women
- Authors: Hine, Grant Burnett
- Date: 1988
- Subjects: Men -- Psychology , Masculinity , Sex role , Oppression (Psychology) , Stereotype (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3112 , http://hdl.handle.net/10962/d1004593 , Men -- Psychology , Masculinity , Sex role , Oppression (Psychology) , Stereotype (Psychology)
- Description: Masculinity and femininity are taken for granted as being a natural part of everyday existence forming acceptable images of what it means to be a man and a woman. It is revealed that in conforming to the sexual stereotype of what it means to be masculine and feminine, men's repression of their emotional life forms a counterpart of their oppression of women, for the repression of men's emotional life as a process, manifests itself through the oppression of women. The socioeconomic relations, being exploitative in nature, having been obscured and mystified by masculine and feminine forms of false consciousness, justify the prevalent social circumstances by portraying them as natural and inevitable, thus serving to hide the fact that men and women comprise of both, masculine and feminine characteristics. Disclosing the quality of the experience of men's repression of their emotional life as a counterpart of their oppression of women, through qualitative description and reflection, it is evident that individuality and human social relationships are restricted by the constraints of masculine and feminine stereotypes. It is clearly highlighted, that women help to perpetuate the repression of male emotional life and in turn their own oppression through supporting the successful work, status and power oriented 'macho' male. Through the recognition of the pressures, and a re-evaluation of the masculine role, men will no longer see cause to oppress women and through that there will no longer be a need to repress their own emotional life. There is a need for self-reflection in those individuals and groups restricted by the constraints of masculinity and femininity for the realization of new possibilities of enlightened social action and individuality.
- Full Text:
- Date Issued: 1988
- Authors: Hine, Grant Burnett
- Date: 1988
- Subjects: Men -- Psychology , Masculinity , Sex role , Oppression (Psychology) , Stereotype (Psychology)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3112 , http://hdl.handle.net/10962/d1004593 , Men -- Psychology , Masculinity , Sex role , Oppression (Psychology) , Stereotype (Psychology)
- Description: Masculinity and femininity are taken for granted as being a natural part of everyday existence forming acceptable images of what it means to be a man and a woman. It is revealed that in conforming to the sexual stereotype of what it means to be masculine and feminine, men's repression of their emotional life forms a counterpart of their oppression of women, for the repression of men's emotional life as a process, manifests itself through the oppression of women. The socioeconomic relations, being exploitative in nature, having been obscured and mystified by masculine and feminine forms of false consciousness, justify the prevalent social circumstances by portraying them as natural and inevitable, thus serving to hide the fact that men and women comprise of both, masculine and feminine characteristics. Disclosing the quality of the experience of men's repression of their emotional life as a counterpart of their oppression of women, through qualitative description and reflection, it is evident that individuality and human social relationships are restricted by the constraints of masculine and feminine stereotypes. It is clearly highlighted, that women help to perpetuate the repression of male emotional life and in turn their own oppression through supporting the successful work, status and power oriented 'macho' male. Through the recognition of the pressures, and a re-evaluation of the masculine role, men will no longer see cause to oppress women and through that there will no longer be a need to repress their own emotional life. There is a need for self-reflection in those individuals and groups restricted by the constraints of masculinity and femininity for the realization of new possibilities of enlightened social action and individuality.
- Full Text:
- Date Issued: 1988
The establishment of a Lidar facility at Rhodes University
- Grant, Richard Peter James Seton
- Authors: Grant, Richard Peter James Seton
- Date: 1988
- Subjects: Optical radar , LIDAR , Receiver , Transmitter , Photon counting electronics , Aerosol scattering , Temperature profiles , Stratosphere
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5445 , http://hdl.handle.net/10962/d1001998
- Description: LIDAR is the optical equivalent of RADAR. A LIDAR facility has been established at Rhodes University using a flashlamp-pumped dye laser as the transmitter and a photomultiplier tube at the focus of a searchlight mirror as the receiver. The setting up of the receiver and transmitter as well as the design and construction of the photon counting electronics is described. The LIDAR has been used to measure aerosol scattering ratios and temperature profiles in the stratosphere and these results are presented with the algorithms and software used to reduce the data. Finally some recommendations are made for future work
- Full Text:
- Date Issued: 1988
- Authors: Grant, Richard Peter James Seton
- Date: 1988
- Subjects: Optical radar , LIDAR , Receiver , Transmitter , Photon counting electronics , Aerosol scattering , Temperature profiles , Stratosphere
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5445 , http://hdl.handle.net/10962/d1001998
- Description: LIDAR is the optical equivalent of RADAR. A LIDAR facility has been established at Rhodes University using a flashlamp-pumped dye laser as the transmitter and a photomultiplier tube at the focus of a searchlight mirror as the receiver. The setting up of the receiver and transmitter as well as the design and construction of the photon counting electronics is described. The LIDAR has been used to measure aerosol scattering ratios and temperature profiles in the stratosphere and these results are presented with the algorithms and software used to reduce the data. Finally some recommendations are made for future work
- Full Text:
- Date Issued: 1988
Explanation in rule-based expert systems
- Authors: Carden, Kenneth John
- Date: 1988
- Subjects: Expert systems (Computer science) Ecology -- Research
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4569 , http://hdl.handle.net/10962/d1002034
- Description: The ability of an expert system to explain its reasoning is fundamental to the system's credibility. Explanations become even more vital in systems which use methods of uncertainty propagation. The research documented here describes the development of an explanation sub-system which interfaces with the P.R.O. Expert System Toolkit. This toolkit has been used in the development of three small ecological expert systems. This project has involved adapting the results of research in the field of explanation-generation, to the requirements of the ecologist users. The subsystem contains two major components. The first lists the rules that fired during a consultation. The second component comprises routines responsible for quantifying the effects on the system conclusions of the answers given to questions. These latter routines can be used to perform sensitivity analyses on the answers given. The incorporation of such routines in small expert systems is quite unique
- Full Text:
- Date Issued: 1988
- Authors: Carden, Kenneth John
- Date: 1988
- Subjects: Expert systems (Computer science) Ecology -- Research
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4569 , http://hdl.handle.net/10962/d1002034
- Description: The ability of an expert system to explain its reasoning is fundamental to the system's credibility. Explanations become even more vital in systems which use methods of uncertainty propagation. The research documented here describes the development of an explanation sub-system which interfaces with the P.R.O. Expert System Toolkit. This toolkit has been used in the development of three small ecological expert systems. This project has involved adapting the results of research in the field of explanation-generation, to the requirements of the ecologist users. The subsystem contains two major components. The first lists the rules that fired during a consultation. The second component comprises routines responsible for quantifying the effects on the system conclusions of the answers given to questions. These latter routines can be used to perform sensitivity analyses on the answers given. The incorporation of such routines in small expert systems is quite unique
- Full Text:
- Date Issued: 1988
Oor die kortkuns van John Miles
- Authors: De Beer, Marésa
- Date: 1988
- Subjects: Miles, John, 1938- -- Criticism and interpretation
- Language: Afrikaans
- Type: text , Thesis , Masters , MA
- Identifier: vital:3569 , http://hdl.handle.net/10962/d1002092
- Description: This thesis involves intensive analyses of some of the short-short stories in John Miles's Liefs nie op straat nie, in order to reveal the narrative strategies employed in each. In other words, it is geared to "the rules that govern ... textual actualization and, consequently, those rules that govern the way literary discourse functions as communication" (Riffaterre 1983: 158). Subsequently, attention is given to the interrelationship among the texts, the way in which they act upon one another and interact with the title of the volume, in order to establish the function of such relations. The following texts are analysed in consecutive chapters: "Lucy", "Lappies, kan jy my hoor, Lappies?", "Voorgevoel", "Dom Nakkie, my Dom Nakkie" and "Wie het nog Dom Nakkie gesien?", "Hy staan by die deur en hy klop", "Gustav gaan speel", and "Liefs nie op straat nie". In a concluding chapter the implications of the title are discussed with reference to all the texts in the volume, including those not analysed individually. It is concluded that, on the one hand, the expectations raised by the title are ironicized because the title is never "completed" explicitly, and because that which, by implication, should not be seen in public ("op straat"), is specifically situated in the street and scrutinized in close-up. But on the other hand the title also evokes a peculiar mentality present in all the texts, either in the narrators, or in the characters, or in both. The discussion of "Lucy" is focussed mainly on the contrast and interaction between the world of the child and that of the adult and on the way in which this interaction is actualized within the text through the contrast in the experience of time, the use of "mémoire involontaire", "durée" and the contrasts between (and overlapping of) narrative perspective and focalization. In respect of "Lappies, kan jy my hoor, Lappies?" special attention is paid to similarities and contrasts between this text and the traditional suspense story, notably the way in which conventional techniques are employed to create suspense, as well as to generate an entire subtext which eventually "relocates" the text on the niveau of the murderer's psychological dilemma. In discussing "Voorgevoel" emphasis is not placed primarily on what is conveyed by the narrator, but on the way in which his intentions are subverted both by the window pane through which he is looking and by the narration as such. In this way he is foregrounded and revealed as narrator, just as the text is foregrounded and revealed as literature, with the emphasis, in both cases, not only on their defence mechanisms but also on their impotence. "Dom Nakkie, my Dom Nakkie" and "Wie het nog Dom Nakkie gesien?" are grouped together in one chapter in order to illuminate the interaction between the two narratives in the first text, as well as the interaction between the two texts. Ultimately, they may be seen as three narratives juxtaposed through irony and relativism. The "triumph" of the "preferably not in public" mentality, both in the text and in society, is also illustrated by the interaction between the three narratives. In chapter, 5, in which "Hy staan by die deur en hy klop" is discussed, attention is focussed on the ironic function of the Biblical references, the contrast between Jan and the rest of society, and the way in which the "climax" is located within the Iserian "blank" in the text, so that the entire process of decoding is based on a filling in of that "blank" and its implications. "Gustav gaan speel" is based loosely on Barthes's lexia model, in order to determine the signifying process in the text, and also to demonstrate the way in which the text presupposes rereading. In the discussion of the title text it is revealed how the text is centered in the basic dichotomy between the narrator-as-writer and the journalist, and the way in which this polarity is relativized by the text as such. The text is demonstrated to be the credo of the volume as a whole as well as of the fiction of the Seventies in Afrikaans.
- Full Text:
- Date Issued: 1988
- Authors: De Beer, Marésa
- Date: 1988
- Subjects: Miles, John, 1938- -- Criticism and interpretation
- Language: Afrikaans
- Type: text , Thesis , Masters , MA
- Identifier: vital:3569 , http://hdl.handle.net/10962/d1002092
- Description: This thesis involves intensive analyses of some of the short-short stories in John Miles's Liefs nie op straat nie, in order to reveal the narrative strategies employed in each. In other words, it is geared to "the rules that govern ... textual actualization and, consequently, those rules that govern the way literary discourse functions as communication" (Riffaterre 1983: 158). Subsequently, attention is given to the interrelationship among the texts, the way in which they act upon one another and interact with the title of the volume, in order to establish the function of such relations. The following texts are analysed in consecutive chapters: "Lucy", "Lappies, kan jy my hoor, Lappies?", "Voorgevoel", "Dom Nakkie, my Dom Nakkie" and "Wie het nog Dom Nakkie gesien?", "Hy staan by die deur en hy klop", "Gustav gaan speel", and "Liefs nie op straat nie". In a concluding chapter the implications of the title are discussed with reference to all the texts in the volume, including those not analysed individually. It is concluded that, on the one hand, the expectations raised by the title are ironicized because the title is never "completed" explicitly, and because that which, by implication, should not be seen in public ("op straat"), is specifically situated in the street and scrutinized in close-up. But on the other hand the title also evokes a peculiar mentality present in all the texts, either in the narrators, or in the characters, or in both. The discussion of "Lucy" is focussed mainly on the contrast and interaction between the world of the child and that of the adult and on the way in which this interaction is actualized within the text through the contrast in the experience of time, the use of "mémoire involontaire", "durée" and the contrasts between (and overlapping of) narrative perspective and focalization. In respect of "Lappies, kan jy my hoor, Lappies?" special attention is paid to similarities and contrasts between this text and the traditional suspense story, notably the way in which conventional techniques are employed to create suspense, as well as to generate an entire subtext which eventually "relocates" the text on the niveau of the murderer's psychological dilemma. In discussing "Voorgevoel" emphasis is not placed primarily on what is conveyed by the narrator, but on the way in which his intentions are subverted both by the window pane through which he is looking and by the narration as such. In this way he is foregrounded and revealed as narrator, just as the text is foregrounded and revealed as literature, with the emphasis, in both cases, not only on their defence mechanisms but also on their impotence. "Dom Nakkie, my Dom Nakkie" and "Wie het nog Dom Nakkie gesien?" are grouped together in one chapter in order to illuminate the interaction between the two narratives in the first text, as well as the interaction between the two texts. Ultimately, they may be seen as three narratives juxtaposed through irony and relativism. The "triumph" of the "preferably not in public" mentality, both in the text and in society, is also illustrated by the interaction between the three narratives. In chapter, 5, in which "Hy staan by die deur en hy klop" is discussed, attention is focussed on the ironic function of the Biblical references, the contrast between Jan and the rest of society, and the way in which the "climax" is located within the Iserian "blank" in the text, so that the entire process of decoding is based on a filling in of that "blank" and its implications. "Gustav gaan speel" is based loosely on Barthes's lexia model, in order to determine the signifying process in the text, and also to demonstrate the way in which the text presupposes rereading. In the discussion of the title text it is revealed how the text is centered in the basic dichotomy between the narrator-as-writer and the journalist, and the way in which this polarity is relativized by the text as such. The text is demonstrated to be the credo of the volume as a whole as well as of the fiction of the Seventies in Afrikaans.
- Full Text:
- Date Issued: 1988
The geology and metallogeny of the Otavi mountain land, Damara orogen, SWA/Namibia, with particular reference to the Berg Aukas Zn-Pb-V deposit a model of ore genesis
- Authors: Misiewicz, Julian Edward
- Date: 1988
- Subjects: Geology -- Namibia -- Damaraland , Ore deposits -- Namibia , Orogeny , Metallogeny , Geodynamics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4959 , http://hdl.handle.net/10962/d1005571 , Geology -- Namibia -- Damaraland , Ore deposits -- Namibia , Orogeny , Metallogeny , Geodynamics
- Description: The Olavi Mountain Land is a 10 000 km2 mineral province located at the eastern extremity of the exposed Northern Platform of the Damara Pan African orogenic belt. The Olavi Mountain Land is tbe most important mineral province on the Northern Platform. Exploitation of tbe Cu-Pb-Zn-V province has been on-going since the possession of the territory by the German colonial authority in 1890. Production has been mostly from four mines which in order of importance are Tsumeb, Kombat, Berg Aukas and Abeoab. A second mineral province on the Northern Platform located in the west is centred on Sesfontein where as yet only insignificant mineralization has been noted. Besides these localities, the Northern Platform is conspicuously devoid of notable mineralization. The aim of this thesis has been to document tbe Berg Aukas deposit, an important end-member type of mineralization in the Otavi Mountain Land. The basic premise bas been to show tbat the derivation and localization of the mineralization is a consequence of two broad controls which can be simply summarised as features of the basement and of the carbonate sequences. The geodynamic evolution of the Damara Belt commenced with intra-continental rifting approximately 900 Ma ago. Rift grabens trending north-east were filled by the Nosib Group which comprises mostly clastic lithologies but also some volcanics. The earliest and largest rift is referred to as the Northern Rift. Separation of the Congo, Kalahari, and proto-South American cratons resulted in rifting and rapid downwarping so that an encroaching sea and an Olavi Group carbonate shelf developed along the northern margin of the Northern Rift. Significantly, the carbonates only covered the Northern Rift in the area of the Otavi Mountain Land where a basinal dome, referred to as the Grootfontein Basement High, marked the basin edge. In the west, the carbonates covered the less important Sesfonfein Rift, and it is only in these two areas where Nosib sequences underlie the carbonate platform. Carbonate sedimentation was interrupted by a major period of crustal readjustment and the deposition of an extensive mixtite throughout the geosynclinal Swakop Trough and Northern Platform. This is referred to as the Chuos Formation and subdivides the Olavi Group into a lower Abenab and an upper Tsumeb Subgroup. Reversal of spreading led to plate collision and subduction of tbe Kalahari craton beneath the Congo craton. It was accompanied by orogenesis which resulted in F1 folding of the Northern Platform into a series of north-easterly trending intermontane basins into which a molasse sequence known as the Mulden Group was unconformably deposited. Following this major north-south deformation mild east-west compression initiated F2 folding and the formation of doubly plunging synclines. The Berg Aukas Syncline represents a primary depositional basin which was subsequently folded. The original basin was formed by late Nosib rifting wben spreading caused the Swakop geosynclinal Trough to form. Carbonates of the basal Berg Aukas Formation were deposited in a lagoonal setting typified by reef and fore-reef facies witb peri-platform conditions. Rapid subsidence caused these sediments to be overlain by deep water carbonates of the Gauss Formation. Two styles of mineralization known as the Tsumeb-type and Berg Aukas-type are stratigraphically, isotopically, and mineralogically distinct. The Tsumeb-type is a cupriferous variety of discordant bodies confined to the upper sequences beneath the Mulden unconformity. The Berg Aukas-type is a Zn-Pb variety confined to tbe basal unconformity. The Berg Aukas deposit comprises three ore bodies known as the Northern Ore Horizon, the Central Ore Body, and the Hanging Wall Ore Body. Sphalerite and galena constitute the bypogene ore. Willemite, smithsonite, cerussite, and descloizite are important supergene ores. A review of genetic models concludes that a magmatic origin initially proposed for tbe Tsumeb deposit is entirely rejected and a basin dewatering model in line with Mississippi Valley-type deposits is proposed. The syntectonic nature of mineralization at Berg Aukas and elsewhere in the Otavi Mountain Land indicates that orogenesis encouraged dewatering and leaching of metals from a broad mineralizing front along the margin of the Swakop Trough. These were transported by acidic saline brines which migrated along the clastic aquifers and structural conduits provided by the Northern Rift. Fluid inclusion studies indicate that the hydrothermal fluids at Berg Aukas were very saline (23% TDS) and were transported at temperatures ranging between 92° to 210°C. Hydrothermal fluids which mineralized Berg AukaS-type deposits migrated along the basal unconformity towards the basement high and were responsible for hydrothermally altering the basement granites and gabbros and the Nosib clastic rocks. Tsumeb-type deposits resulted by migration of fluids through the carbonate pile and along north-easterly trending basement geofractures. As a consequence of variation in transport, the Berg Aukas-type and Tsumeb-type fluids leached different sources and therefore derived mineralogically and isotopically seperable characteristics. The localization of the Berg Aukas ores was controlled by the carbonate stratigraphy and structure. Hydrothermal karsting and ore deposition took place on the contact between Massive Grey and Light Grey Dolostones which represents a permeability contrast. The movement of the hydrothermal fluids was controlled by north-south trending vertical fractures caused by F2 folding which resulted in a peric1inal structure. Hydrothermal karsting was accompanied by ca1citic, dolomitic and silicic alteration. The heated acidic fluids initiated solution collapse and a variety of breccia types. Supergene processes resulted in oxidation and upgrading of the ore. Vanadium derived indirectly from gabbros in the basement complex were transported as calcium metavanadate complexes and deposited on contact with the oxidizing base metal sulphides.
- Full Text:
- Date Issued: 1988
- Authors: Misiewicz, Julian Edward
- Date: 1988
- Subjects: Geology -- Namibia -- Damaraland , Ore deposits -- Namibia , Orogeny , Metallogeny , Geodynamics
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4959 , http://hdl.handle.net/10962/d1005571 , Geology -- Namibia -- Damaraland , Ore deposits -- Namibia , Orogeny , Metallogeny , Geodynamics
- Description: The Olavi Mountain Land is a 10 000 km2 mineral province located at the eastern extremity of the exposed Northern Platform of the Damara Pan African orogenic belt. The Olavi Mountain Land is tbe most important mineral province on the Northern Platform. Exploitation of tbe Cu-Pb-Zn-V province has been on-going since the possession of the territory by the German colonial authority in 1890. Production has been mostly from four mines which in order of importance are Tsumeb, Kombat, Berg Aukas and Abeoab. A second mineral province on the Northern Platform located in the west is centred on Sesfontein where as yet only insignificant mineralization has been noted. Besides these localities, the Northern Platform is conspicuously devoid of notable mineralization. The aim of this thesis has been to document tbe Berg Aukas deposit, an important end-member type of mineralization in the Otavi Mountain Land. The basic premise bas been to show tbat the derivation and localization of the mineralization is a consequence of two broad controls which can be simply summarised as features of the basement and of the carbonate sequences. The geodynamic evolution of the Damara Belt commenced with intra-continental rifting approximately 900 Ma ago. Rift grabens trending north-east were filled by the Nosib Group which comprises mostly clastic lithologies but also some volcanics. The earliest and largest rift is referred to as the Northern Rift. Separation of the Congo, Kalahari, and proto-South American cratons resulted in rifting and rapid downwarping so that an encroaching sea and an Olavi Group carbonate shelf developed along the northern margin of the Northern Rift. Significantly, the carbonates only covered the Northern Rift in the area of the Otavi Mountain Land where a basinal dome, referred to as the Grootfontein Basement High, marked the basin edge. In the west, the carbonates covered the less important Sesfonfein Rift, and it is only in these two areas where Nosib sequences underlie the carbonate platform. Carbonate sedimentation was interrupted by a major period of crustal readjustment and the deposition of an extensive mixtite throughout the geosynclinal Swakop Trough and Northern Platform. This is referred to as the Chuos Formation and subdivides the Olavi Group into a lower Abenab and an upper Tsumeb Subgroup. Reversal of spreading led to plate collision and subduction of tbe Kalahari craton beneath the Congo craton. It was accompanied by orogenesis which resulted in F1 folding of the Northern Platform into a series of north-easterly trending intermontane basins into which a molasse sequence known as the Mulden Group was unconformably deposited. Following this major north-south deformation mild east-west compression initiated F2 folding and the formation of doubly plunging synclines. The Berg Aukas Syncline represents a primary depositional basin which was subsequently folded. The original basin was formed by late Nosib rifting wben spreading caused the Swakop geosynclinal Trough to form. Carbonates of the basal Berg Aukas Formation were deposited in a lagoonal setting typified by reef and fore-reef facies witb peri-platform conditions. Rapid subsidence caused these sediments to be overlain by deep water carbonates of the Gauss Formation. Two styles of mineralization known as the Tsumeb-type and Berg Aukas-type are stratigraphically, isotopically, and mineralogically distinct. The Tsumeb-type is a cupriferous variety of discordant bodies confined to the upper sequences beneath the Mulden unconformity. The Berg Aukas-type is a Zn-Pb variety confined to tbe basal unconformity. The Berg Aukas deposit comprises three ore bodies known as the Northern Ore Horizon, the Central Ore Body, and the Hanging Wall Ore Body. Sphalerite and galena constitute the bypogene ore. Willemite, smithsonite, cerussite, and descloizite are important supergene ores. A review of genetic models concludes that a magmatic origin initially proposed for tbe Tsumeb deposit is entirely rejected and a basin dewatering model in line with Mississippi Valley-type deposits is proposed. The syntectonic nature of mineralization at Berg Aukas and elsewhere in the Otavi Mountain Land indicates that orogenesis encouraged dewatering and leaching of metals from a broad mineralizing front along the margin of the Swakop Trough. These were transported by acidic saline brines which migrated along the clastic aquifers and structural conduits provided by the Northern Rift. Fluid inclusion studies indicate that the hydrothermal fluids at Berg Aukas were very saline (23% TDS) and were transported at temperatures ranging between 92° to 210°C. Hydrothermal fluids which mineralized Berg AukaS-type deposits migrated along the basal unconformity towards the basement high and were responsible for hydrothermally altering the basement granites and gabbros and the Nosib clastic rocks. Tsumeb-type deposits resulted by migration of fluids through the carbonate pile and along north-easterly trending basement geofractures. As a consequence of variation in transport, the Berg Aukas-type and Tsumeb-type fluids leached different sources and therefore derived mineralogically and isotopically seperable characteristics. The localization of the Berg Aukas ores was controlled by the carbonate stratigraphy and structure. Hydrothermal karsting and ore deposition took place on the contact between Massive Grey and Light Grey Dolostones which represents a permeability contrast. The movement of the hydrothermal fluids was controlled by north-south trending vertical fractures caused by F2 folding which resulted in a peric1inal structure. Hydrothermal karsting was accompanied by ca1citic, dolomitic and silicic alteration. The heated acidic fluids initiated solution collapse and a variety of breccia types. Supergene processes resulted in oxidation and upgrading of the ore. Vanadium derived indirectly from gabbros in the basement complex were transported as calcium metavanadate complexes and deposited on contact with the oxidizing base metal sulphides.
- Full Text:
- Date Issued: 1988
The psychological experience of being in hiding against the background of political repression in South Africa during the 1986 general State of Emergency: a phenomenological explication
- Authors: Scheepers, Esca
- Date: 1988
- Subjects: Violence -- South Africa -- Psychological aspects , South Africa -- Politics and government -- 1989-1994
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3111 , http://hdl.handle.net/10962/d1004586 , Violence -- South Africa -- Psychological aspects , South Africa -- Politics and government -- 1989-1994
- Description: This is a study in Critical Psychology which examines the psychological costs of one of the direct outcomes of political repression - the experience of being in hiding. The aims of the study can be depicted on two levels: it is first and foremost an attempt to provide a true account of the phenomenon of being in hiding. On a second level of equal importance it is an implicit and overt critique of the social order in which this phenomenon takes place. The psychological experience of being in hiding is examined and discussed in its proper socio-political context. Therefore, the theoretical part of the mini-thesis has a strong political bearing, focusing on the State, and extra-parliamentary opposition in South Africa. repression The empirical part of the mini-thesis explicates the psychological experience of being in hiding with the aid of the phenomenological method of investigation. Due to the lack of research on this or similar topics, it is discussed within the framework of the experience of a stressful life event. For the five subjects being in hiding was an extreme intervention which was imposed upon their existences and which brought about a qualitative transformation in the individual subjects mode of being-in-the-world - not only in terms of practicalities, but also on a deep experiential level. It was a phenomenon which touched on fundamental parts of their experience of themselves and their individual worlds and the way in which they actualized themselves. For them it essentially entailed a loss of relationships and roles which resulted in an experience of a measure of encapsulation or separation from the world of others . It was a profound, multi - dimensional disruption of the structure of the subject ' s existence which infused a rich emotional experience .
- Full Text:
- Date Issued: 1988
- Authors: Scheepers, Esca
- Date: 1988
- Subjects: Violence -- South Africa -- Psychological aspects , South Africa -- Politics and government -- 1989-1994
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3111 , http://hdl.handle.net/10962/d1004586 , Violence -- South Africa -- Psychological aspects , South Africa -- Politics and government -- 1989-1994
- Description: This is a study in Critical Psychology which examines the psychological costs of one of the direct outcomes of political repression - the experience of being in hiding. The aims of the study can be depicted on two levels: it is first and foremost an attempt to provide a true account of the phenomenon of being in hiding. On a second level of equal importance it is an implicit and overt critique of the social order in which this phenomenon takes place. The psychological experience of being in hiding is examined and discussed in its proper socio-political context. Therefore, the theoretical part of the mini-thesis has a strong political bearing, focusing on the State, and extra-parliamentary opposition in South Africa. repression The empirical part of the mini-thesis explicates the psychological experience of being in hiding with the aid of the phenomenological method of investigation. Due to the lack of research on this or similar topics, it is discussed within the framework of the experience of a stressful life event. For the five subjects being in hiding was an extreme intervention which was imposed upon their existences and which brought about a qualitative transformation in the individual subjects mode of being-in-the-world - not only in terms of practicalities, but also on a deep experiential level. It was a phenomenon which touched on fundamental parts of their experience of themselves and their individual worlds and the way in which they actualized themselves. For them it essentially entailed a loss of relationships and roles which resulted in an experience of a measure of encapsulation or separation from the world of others . It was a profound, multi - dimensional disruption of the structure of the subject ' s existence which infused a rich emotional experience .
- Full Text:
- Date Issued: 1988
An existential phenomenological study of gaining insight into oneself through perceiving another person
- Authors: Hoek, Trevor Martin
- Date: 1988
- Subjects: Self Self-perception
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3113 , http://hdl.handle.net/10962/d1004594
- Description: The aim of this study was to examine the structure of the experience of gaining insight into oneself through perceiving another person. Such a one-to-one situation was selected in order to ensure a minimal level of complexity. The researcher conducted a pilot study in order to check whether people could relate such an experience in response to a long and difficult interview question. One female first year student responded from among a group of thirty to whom the question was posed. She was then interviewed. The data appeared acceptable. This was confirmed after the data analysis using the phenomenological-psychological method of textual analysis. The analysis showed that the subject, while comparing herself with the person whom she was with, discovered that she structured her life too rigidly in her attempt to meet the expectations of others. This discovery gave her the opportunity to restructure her approach to her world and to the others whom she had seen in only a narrow and abstracted way. Lengthier interviews were then conducted with a further six potential subjects. These were then transcribed. Two of those subjects, though, were found to have experienced insight through perceiving more than one other person. The data from the four remaining subjects were then analysed using the phenomenological psychological method. The researcher discovered that insight involves a clarity of perception which is achieved when the person becomes aware of clearly differentiated possibilities; these are revealed to him through his intensely reflecting on where he stands in relation to the other person whom he perceives, or in relation to alternatives revealed to him by the other. The polarities that are revealed allow the person to take up a new approach to his world, since the person discovers that his experience has revealed that he has been inauthentic in his muddled concern about others, and this gives the person a perception of truth that he was previously unaware of. These findings were dialogued with the writing of psychologists and philosophers who have written on the subject of becoming aware of oneself in relation to others.
- Full Text:
- Date Issued: 1988
- Authors: Hoek, Trevor Martin
- Date: 1988
- Subjects: Self Self-perception
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3113 , http://hdl.handle.net/10962/d1004594
- Description: The aim of this study was to examine the structure of the experience of gaining insight into oneself through perceiving another person. Such a one-to-one situation was selected in order to ensure a minimal level of complexity. The researcher conducted a pilot study in order to check whether people could relate such an experience in response to a long and difficult interview question. One female first year student responded from among a group of thirty to whom the question was posed. She was then interviewed. The data appeared acceptable. This was confirmed after the data analysis using the phenomenological-psychological method of textual analysis. The analysis showed that the subject, while comparing herself with the person whom she was with, discovered that she structured her life too rigidly in her attempt to meet the expectations of others. This discovery gave her the opportunity to restructure her approach to her world and to the others whom she had seen in only a narrow and abstracted way. Lengthier interviews were then conducted with a further six potential subjects. These were then transcribed. Two of those subjects, though, were found to have experienced insight through perceiving more than one other person. The data from the four remaining subjects were then analysed using the phenomenological psychological method. The researcher discovered that insight involves a clarity of perception which is achieved when the person becomes aware of clearly differentiated possibilities; these are revealed to him through his intensely reflecting on where he stands in relation to the other person whom he perceives, or in relation to alternatives revealed to him by the other. The polarities that are revealed allow the person to take up a new approach to his world, since the person discovers that his experience has revealed that he has been inauthentic in his muddled concern about others, and this gives the person a perception of truth that he was previously unaware of. These findings were dialogued with the writing of psychologists and philosophers who have written on the subject of becoming aware of oneself in relation to others.
- Full Text:
- Date Issued: 1988
What makes a painting good?: an enquiry into the criteria used in evaluation
- Authors: Frost, Lola
- Date: 1988
- Subjects: Painting -- Appreciation
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2461 , http://hdl.handle.net/10962/d1008542
- Description: From introduction: "To affirm that a work of art is good or bad is to commend or condemn, but not describe . Thus criticism does not, and cannot, have the impersonal character and strict rules applicable independently of time and place," .. . (Macdonald 1966: 111) "Criticism and appraisal, too, are more like creation than like demonstration and proof." (Macdonald 1966: 112) This essay articulates evaluatory criteria that are used by both critics and laymen and which are cross -culturally applicable. Thus it seeks to articulate relatively objective types of criteria which we all use when evaluating paintings. This essay articulates fixed and objective criteria, but within these categories recognizes that there is much room for skillful, sympathetic and knowledgeable criticism. Thus criticism is a creative act. These objectively- articulated criteria are best seen as aids to, rather than carbon copies, for evaluation.
- Full Text:
- Date Issued: 1988
- Authors: Frost, Lola
- Date: 1988
- Subjects: Painting -- Appreciation
- Language: English
- Type: Thesis , Masters , MFA
- Identifier: vital:2461 , http://hdl.handle.net/10962/d1008542
- Description: From introduction: "To affirm that a work of art is good or bad is to commend or condemn, but not describe . Thus criticism does not, and cannot, have the impersonal character and strict rules applicable independently of time and place," .. . (Macdonald 1966: 111) "Criticism and appraisal, too, are more like creation than like demonstration and proof." (Macdonald 1966: 112) This essay articulates evaluatory criteria that are used by both critics and laymen and which are cross -culturally applicable. Thus it seeks to articulate relatively objective types of criteria which we all use when evaluating paintings. This essay articulates fixed and objective criteria, but within these categories recognizes that there is much room for skillful, sympathetic and knowledgeable criticism. Thus criticism is a creative act. These objectively- articulated criteria are best seen as aids to, rather than carbon copies, for evaluation.
- Full Text:
- Date Issued: 1988
The doctrine of heaven in the writings of St. John of Damascus and earlier Greek tradition
- Authors: Parrish, Christopher John
- Date: 1988
- Subjects: John, of Damascus, Saint
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:1220 , http://hdl.handle.net/10962/d1001550
- Description: This thesis investigates the subject of Heaven or Paradise in the De Fide Orthodoxa of St. John of Damascus (c.675 - c.749) , a Greek Father and theologian who gave the Church a definitive heritage of the Greek Fathers' teaching. After a preliminary consideration of the meanings of "Heaven" and Paradise as a state or a place, a substantial part of this thesis is then given to a detailed treatment of the Greek Fathers' teaching on the tree of the knowledge of good and evil and the tree of life in Paradise. The questions of the indispensability of the tree of life to the final bliss of the saints, and the doubtful place of the tree of knowledge also receive attention. The meaning of the trees for St. John of Damascus is expounded in order to show his use of the ideas of Greek Fathers prior to him, for example, Gregory Naziazenus and Maximus the Confessor. After this, the questions of entry into Paradise and the Greek teaching of the intermediate state of the departed are raised. The descent of Christ to Hades precedes discussion of whether St. John of Damascus taught a doctrine of Purgatory or not. The practice of prayer for the departed is examined with respect to its effect on the intermediate state of the faithful departed. Lastly, this thesis explores the necessity of the resurrection for the final bliss of the faithful, and establishes the relevance of this teaching for modern thought on the preservation of integral personality. In conclusion, the writer suggests that St. John of Damascus bequeathed to the Church rich insights into the Greek Fathers' doctrine of Heaven.
- Full Text:
- Date Issued: 1988
- Authors: Parrish, Christopher John
- Date: 1988
- Subjects: John, of Damascus, Saint
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:1220 , http://hdl.handle.net/10962/d1001550
- Description: This thesis investigates the subject of Heaven or Paradise in the De Fide Orthodoxa of St. John of Damascus (c.675 - c.749) , a Greek Father and theologian who gave the Church a definitive heritage of the Greek Fathers' teaching. After a preliminary consideration of the meanings of "Heaven" and Paradise as a state or a place, a substantial part of this thesis is then given to a detailed treatment of the Greek Fathers' teaching on the tree of the knowledge of good and evil and the tree of life in Paradise. The questions of the indispensability of the tree of life to the final bliss of the saints, and the doubtful place of the tree of knowledge also receive attention. The meaning of the trees for St. John of Damascus is expounded in order to show his use of the ideas of Greek Fathers prior to him, for example, Gregory Naziazenus and Maximus the Confessor. After this, the questions of entry into Paradise and the Greek teaching of the intermediate state of the departed are raised. The descent of Christ to Hades precedes discussion of whether St. John of Damascus taught a doctrine of Purgatory or not. The practice of prayer for the departed is examined with respect to its effect on the intermediate state of the faithful departed. Lastly, this thesis explores the necessity of the resurrection for the final bliss of the faithful, and establishes the relevance of this teaching for modern thought on the preservation of integral personality. In conclusion, the writer suggests that St. John of Damascus bequeathed to the Church rich insights into the Greek Fathers' doctrine of Heaven.
- Full Text:
- Date Issued: 1988
Petrology and geochemistry of the lower group chromitites and host rocks on the farm Zandspruit 168 JP, Western Bushveld Complex
- Authors: Botha, Michael James
- Date: 1988
- Subjects: Petrology -- Africa, Southern , Geochemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4905 , http://hdl.handle.net/10962/d1001565
- Description: The eight Lower Group chromitite layers of the Ruighoek Pyroxenite in the area west of the Pilanesberg (LGl - LG7), on the farm Zandspruit 168 JP, were sampled in borehole cores drilled through the succession. The stratigraphic succession faIls within Cameron's (980) units B to E of the Critical Zone. The lowermost layer of the Lower Group, the LG 1 chromitite, is located some 440 metres below the MG 2 (Middle Group) chromitite layer, above which the first appearance of cumulus plagioclase in the Complex is seen. By convention, this horizon is designated the top of the Ruighoek Pyroxenite in the Western Bushveld Complex. Homogeneous units of chromite-bearing orthopyroxenite (bronzitite), exhibiting inconspicuous layering defined in terms of variations in orthopyroxene grain-size host all but one of the Lower Group layers; the LG 4 chromitite layer is exposed within an olivine-rich subunit 23 metres in thickness (C₃ subunit). The cumulative thickness of chromitite is 2,92 metres or 0,8 per cent of the studied section, which is 381 metres in thickness. Minimum and maximum thicknesses of the LGl - LG7 layers exposed in drill core are 17 and 81 centimetres, respectively, with minor chromitite layers ranging between 2 and 5 centimetres in thickness. Weighted mean Cr₂0₃ contents of units B to E vary between 1,17 and 3,22 per cent, with the latter estimate representative of the D₂ subunit which hosts the LG 6 chromitite layer. The LG 6 is correlated with the Steelpoort layer of the Eastern Bushveld Complex, and varies between 76 and 81 centimetres in thickness under a large portion of the farm Zandspruit. An undisturbed succession striking N15°E and dipping 12 - 15°E is depicted within the studied area, which is bounded on the eastern side by the north-striking Frank fault. Major folding of the layered succession is evident to the north of the area, where the layering adjacent to the trace of the fault dips 35° to the southwest. Particular attention is paid in the present study to (a) the nature of chromitite layers and their host rocks, (b) the contrast between the mineral chemistry of weakly disseminated chromite and grains within massive ore layers, (c) concentrations of Cr, V, Ni, Co, Sc and Ti in orthopyroxene in relation to stratigraphic height, and levels of Sr, Ba and Zr associated with hypothetically pure, intercumulus plagioclase feldspar, and (d) possible mechanisms which induce crystallization of chromitite layers containing 50 per cent Cr₂0₃ from magma with a Cr content of less than 1 000 ppm. Electron microprobe studies of chromite in relation to mineralogical and textural environment clearly reveal that (a) the proportions of Cr and Al cations are linked to paragenesis: higher Al/Cr ratios characterize olivine-bearing domains, whereas grains intergrown with plagioclase feldspar exhibit low AI/Cr ratios, and (b) Al contents rise with a decline in Mg/(Mg + Fe²⁺) from high values to a value of 0,450, then decrease with a further decline in Mg/(Mg + Fe²⁺). The paragenetically later trend is emphasized in a large population of chromite grains which escaped early encapsulation in orthopyroxene crystals and continued to grow in the environment of intercumulus plagioclase. Within-and between-sample compositional variation of grains in silicate-rich domains is modelled in terms of in situ growth increments, diffusive homogenization of zonal structures, and residence time within interstitial melt. Fractionation trends, as measured by Mg/(Mg + Fe²⁺) ratios in whole-rock and/or microprobe studies of orthopyroxene, are reversed in relation to stratigraphic height towards the top of the B unit and in the overlying C unit. These data are supported, for example, by lower vanadium contents and higher Ni/Sc ratios in hypothetically pure orthopyroxene. Small olivine crystals in chromite-rich domains are enriched in Ni relative to coarse-grained olivine in adjacent dunite: a feature attributed to early isolation of primocrysts from magma in the former case, and in situ equilibration between olivine crystals and Ni-depleted residual melt in the latter case . Similarly, rising Ni contents and Mg/(Mg + Fe²⁺) ratios of orthopyroxene with increasing stratigraphic height in the footwall of the LG 6 chromitite layer, linked to a progressive decline in orthopyroxene grain-size, are effects which may arise out of early separation of interstitial melt from orthopyroxene cumulates. A model is thus proposed which (a) links the thickness of chromitite layers to the vertical separation between successive layers or the thickness of fine-grained orthopyroxenite in the footwall, (b) ascribes copious nucleation of chromite to liquid mixing of this footwall derived, Cr - depleted contaminant with influxes of hot, primitive magma, and (c) tenders the notion that the present modal proportion of mesostasis in the footwall of a chromitite layer serves as a reciprocal measure of the volume of fractionated exudate
- Full Text:
- Date Issued: 1988
- Authors: Botha, Michael James
- Date: 1988
- Subjects: Petrology -- Africa, Southern , Geochemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4905 , http://hdl.handle.net/10962/d1001565
- Description: The eight Lower Group chromitite layers of the Ruighoek Pyroxenite in the area west of the Pilanesberg (LGl - LG7), on the farm Zandspruit 168 JP, were sampled in borehole cores drilled through the succession. The stratigraphic succession faIls within Cameron's (980) units B to E of the Critical Zone. The lowermost layer of the Lower Group, the LG 1 chromitite, is located some 440 metres below the MG 2 (Middle Group) chromitite layer, above which the first appearance of cumulus plagioclase in the Complex is seen. By convention, this horizon is designated the top of the Ruighoek Pyroxenite in the Western Bushveld Complex. Homogeneous units of chromite-bearing orthopyroxenite (bronzitite), exhibiting inconspicuous layering defined in terms of variations in orthopyroxene grain-size host all but one of the Lower Group layers; the LG 4 chromitite layer is exposed within an olivine-rich subunit 23 metres in thickness (C₃ subunit). The cumulative thickness of chromitite is 2,92 metres or 0,8 per cent of the studied section, which is 381 metres in thickness. Minimum and maximum thicknesses of the LGl - LG7 layers exposed in drill core are 17 and 81 centimetres, respectively, with minor chromitite layers ranging between 2 and 5 centimetres in thickness. Weighted mean Cr₂0₃ contents of units B to E vary between 1,17 and 3,22 per cent, with the latter estimate representative of the D₂ subunit which hosts the LG 6 chromitite layer. The LG 6 is correlated with the Steelpoort layer of the Eastern Bushveld Complex, and varies between 76 and 81 centimetres in thickness under a large portion of the farm Zandspruit. An undisturbed succession striking N15°E and dipping 12 - 15°E is depicted within the studied area, which is bounded on the eastern side by the north-striking Frank fault. Major folding of the layered succession is evident to the north of the area, where the layering adjacent to the trace of the fault dips 35° to the southwest. Particular attention is paid in the present study to (a) the nature of chromitite layers and their host rocks, (b) the contrast between the mineral chemistry of weakly disseminated chromite and grains within massive ore layers, (c) concentrations of Cr, V, Ni, Co, Sc and Ti in orthopyroxene in relation to stratigraphic height, and levels of Sr, Ba and Zr associated with hypothetically pure, intercumulus plagioclase feldspar, and (d) possible mechanisms which induce crystallization of chromitite layers containing 50 per cent Cr₂0₃ from magma with a Cr content of less than 1 000 ppm. Electron microprobe studies of chromite in relation to mineralogical and textural environment clearly reveal that (a) the proportions of Cr and Al cations are linked to paragenesis: higher Al/Cr ratios characterize olivine-bearing domains, whereas grains intergrown with plagioclase feldspar exhibit low AI/Cr ratios, and (b) Al contents rise with a decline in Mg/(Mg + Fe²⁺) from high values to a value of 0,450, then decrease with a further decline in Mg/(Mg + Fe²⁺). The paragenetically later trend is emphasized in a large population of chromite grains which escaped early encapsulation in orthopyroxene crystals and continued to grow in the environment of intercumulus plagioclase. Within-and between-sample compositional variation of grains in silicate-rich domains is modelled in terms of in situ growth increments, diffusive homogenization of zonal structures, and residence time within interstitial melt. Fractionation trends, as measured by Mg/(Mg + Fe²⁺) ratios in whole-rock and/or microprobe studies of orthopyroxene, are reversed in relation to stratigraphic height towards the top of the B unit and in the overlying C unit. These data are supported, for example, by lower vanadium contents and higher Ni/Sc ratios in hypothetically pure orthopyroxene. Small olivine crystals in chromite-rich domains are enriched in Ni relative to coarse-grained olivine in adjacent dunite: a feature attributed to early isolation of primocrysts from magma in the former case, and in situ equilibration between olivine crystals and Ni-depleted residual melt in the latter case . Similarly, rising Ni contents and Mg/(Mg + Fe²⁺) ratios of orthopyroxene with increasing stratigraphic height in the footwall of the LG 6 chromitite layer, linked to a progressive decline in orthopyroxene grain-size, are effects which may arise out of early separation of interstitial melt from orthopyroxene cumulates. A model is thus proposed which (a) links the thickness of chromitite layers to the vertical separation between successive layers or the thickness of fine-grained orthopyroxenite in the footwall, (b) ascribes copious nucleation of chromite to liquid mixing of this footwall derived, Cr - depleted contaminant with influxes of hot, primitive magma, and (c) tenders the notion that the present modal proportion of mesostasis in the footwall of a chromitite layer serves as a reciprocal measure of the volume of fractionated exudate
- Full Text:
- Date Issued: 1988
Criminal and civil aspects of bribery
- Authors: Leslie, Andrew Brian
- Date: 1988
- Subjects: Bribery
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:3701 , http://hdl.handle.net/10962/d1004607
- Description: The purpose of this work is to identify legal action which may be taken against parties to bribery in the fields of criminal and civil law. In particular, the element of mens rea is investigated with regard to criminal corruption. On the civil side, the principal, who has been the victim of bribery, has various remedies against the parties to the bribe. These remedies are analysed with special reference to the influence of English law on the South African law in this field. The options open to the principal, where his agent has made a secret profit which does not amount to bribery, are also considered.
- Full Text:
- Date Issued: 1988
- Authors: Leslie, Andrew Brian
- Date: 1988
- Subjects: Bribery
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:3701 , http://hdl.handle.net/10962/d1004607
- Description: The purpose of this work is to identify legal action which may be taken against parties to bribery in the fields of criminal and civil law. In particular, the element of mens rea is investigated with regard to criminal corruption. On the civil side, the principal, who has been the victim of bribery, has various remedies against the parties to the bribe. These remedies are analysed with special reference to the influence of English law on the South African law in this field. The options open to the principal, where his agent has made a secret profit which does not amount to bribery, are also considered.
- Full Text:
- Date Issued: 1988
Art as an expression of the unconscious psyche
- Authors: Weiner, Elana
- Date: 1988
- Subjects: Art -- Psychology , Art and mental illness , Art therapy , Subconsciousness
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3119 , http://hdl.handle.net/10962/d1004903 , Art -- Psychology , Art and mental illness , Art therapy , Subconsciousness
- Description: This study aimed to investigate the use of expressive art as a manifestation of the unconscious psyche and as an indication of underlying personality dynamics. Its use as a significant medium for therapeutic encounter and exploration was investigated by analysing the art produced by four psychiatric in-patients during their participation in an eight-week art therapy programme. Each patient's art series was qualitatively and thematically interpreted with a focus upon the meaning of significant recurring images and motifs. The results of this study indicate that the particularity of each patient's graphic imagery enabled the lived experience of their struggles and preoccupations to emerge as uniquely different. Through their art productions they revealed the nature of their inner worlds and the power of their thoughts, feelings and experiences.
- Full Text:
- Date Issued: 1988
- Authors: Weiner, Elana
- Date: 1988
- Subjects: Art -- Psychology , Art and mental illness , Art therapy , Subconsciousness
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3119 , http://hdl.handle.net/10962/d1004903 , Art -- Psychology , Art and mental illness , Art therapy , Subconsciousness
- Description: This study aimed to investigate the use of expressive art as a manifestation of the unconscious psyche and as an indication of underlying personality dynamics. Its use as a significant medium for therapeutic encounter and exploration was investigated by analysing the art produced by four psychiatric in-patients during their participation in an eight-week art therapy programme. Each patient's art series was qualitatively and thematically interpreted with a focus upon the meaning of significant recurring images and motifs. The results of this study indicate that the particularity of each patient's graphic imagery enabled the lived experience of their struggles and preoccupations to emerge as uniquely different. Through their art productions they revealed the nature of their inner worlds and the power of their thoughts, feelings and experiences.
- Full Text:
- Date Issued: 1988
The political department and the retraction of paramountcy in India 1935-1947
- Authors: Moëd, Madeleine
- Date: 1988
- Subjects: India , India -- Politics and government -- 1919-1947
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2526 , http://hdl.handle.net/10962/d1001855
- Description: The Political Department and the Indian Political Service stand accused of sins of omission and commission. The evidence suggests that they were badly hampered by ill-conceived training prodecures, a lack of manpower and above all the incoherent policy of the British government towards the Indian states. The failure of the 1935 Federation Act which formally established the Political Department was not due to princely intransigence inspired by political officers. Between 1935 and 1947 the Political Department embarked on a vigorous programme of combining the resources of the smaller states to strengthen them as viable partners in a new India. Their lack of success in effecting the federation of the states with India in 1947 was not a result of the disinclination of political officers to implement reform as much as their inability to do so. Many princes were also unwilling to sacrifice a measure of sovereignty for efficient government and paramountcy precluded forcing internal reform on the princes. Paramountcy was never clearly defined and thus its retraction in 1947 took place amidst confusion and misunderstanding on all sides. The Indian Political Service was always treated as secondary to the Indian Civil Service and the states to British India. Britain's emphasis on constitutional change in British India, reflected in the Cripps Mission of 1942, the Cabinet Mission of 1946 and the rush towards independence in 1947 resulted in her inattention to the Political Department and the princes which culminated in the abandonment of both in 1947.
- Full Text:
- Date Issued: 1988
- Authors: Moëd, Madeleine
- Date: 1988
- Subjects: India , India -- Politics and government -- 1919-1947
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2526 , http://hdl.handle.net/10962/d1001855
- Description: The Political Department and the Indian Political Service stand accused of sins of omission and commission. The evidence suggests that they were badly hampered by ill-conceived training prodecures, a lack of manpower and above all the incoherent policy of the British government towards the Indian states. The failure of the 1935 Federation Act which formally established the Political Department was not due to princely intransigence inspired by political officers. Between 1935 and 1947 the Political Department embarked on a vigorous programme of combining the resources of the smaller states to strengthen them as viable partners in a new India. Their lack of success in effecting the federation of the states with India in 1947 was not a result of the disinclination of political officers to implement reform as much as their inability to do so. Many princes were also unwilling to sacrifice a measure of sovereignty for efficient government and paramountcy precluded forcing internal reform on the princes. Paramountcy was never clearly defined and thus its retraction in 1947 took place amidst confusion and misunderstanding on all sides. The Indian Political Service was always treated as secondary to the Indian Civil Service and the states to British India. Britain's emphasis on constitutional change in British India, reflected in the Cripps Mission of 1942, the Cabinet Mission of 1946 and the rush towards independence in 1947 resulted in her inattention to the Political Department and the princes which culminated in the abandonment of both in 1947.
- Full Text:
- Date Issued: 1988
Application of high-performance liquid chromatography for the analysis and pharmocokinetics of mephenoxalone
- Authors: Van der Westhuizen, Fiona
- Date: 1988 , 2013-03-06
- Subjects: High performance liquid chromatography , Central nervous system depressants
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3810 , http://hdl.handle.net/10962/d1004385 , High performance liquid chromatography , Central nervous system depressants
- Description: Mephenoxalone is a mild central nervous system depressant with activity resembling that of meprobamate. Since its introduction in 1961 mephenoxalone has been used as an anxiolytic and as a muscle relaxant, although the latter effect is weak. Preliminary studies on the absorption and disposition of mephenoxalone have been conducted in beagle dogs but no pharmacokinetic data from human studies have been reported, except for a single study in which the biotransformation products present in human urine were identified. Methods presently available for the determination of mephenoxalone in biological fluids lack the sensitivity, specificity and precision required for detailed pharmacokinetic studies. In this study, a rapid, sensitive, precise reverse-phase high-performance liquid chromatographic method with ultraviolet detection at 200nm was employed for the determination of mephenoxalone in biological fluids. Serum and urine samples were prepared for chromatographic analysis using simple liquid-liquid extraction techniques. The application of the assay to pharmacokinetic studies in humans is presented. After administration of a single oral dose of 400mg mephenoxalone dispersed in 150ml water to six young, healthy volunteers, the compound was rapidly absorbed with the peak concentration of 8μg/ml occurring after about 1 hour. The elimination half-life was approximately 3 hours. The drug was extensively metabolized with only about 1 percent of the administered dose being excreted unchanged in the urine after 24 hours. The bioavailability of a newly developed mephenoxalone-containing tablet was also investigated. The drug was absorbed more rapidly from the tablet than from the dispersed dose. This was attributed to a shorter in vivo dissolution time on the basis of in vitro tests, but this effect is not expected to be clinically significant. In addition, two human urinary metabolites of mephenoxalone were identified as unconjugated hydroxylated derivatives using thermospray HPLC-mass spectrometry. The plasma protein-binding properties of mephenoxalone were also investigated.
- Full Text:
- Date Issued: 1988
- Authors: Van der Westhuizen, Fiona
- Date: 1988 , 2013-03-06
- Subjects: High performance liquid chromatography , Central nervous system depressants
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3810 , http://hdl.handle.net/10962/d1004385 , High performance liquid chromatography , Central nervous system depressants
- Description: Mephenoxalone is a mild central nervous system depressant with activity resembling that of meprobamate. Since its introduction in 1961 mephenoxalone has been used as an anxiolytic and as a muscle relaxant, although the latter effect is weak. Preliminary studies on the absorption and disposition of mephenoxalone have been conducted in beagle dogs but no pharmacokinetic data from human studies have been reported, except for a single study in which the biotransformation products present in human urine were identified. Methods presently available for the determination of mephenoxalone in biological fluids lack the sensitivity, specificity and precision required for detailed pharmacokinetic studies. In this study, a rapid, sensitive, precise reverse-phase high-performance liquid chromatographic method with ultraviolet detection at 200nm was employed for the determination of mephenoxalone in biological fluids. Serum and urine samples were prepared for chromatographic analysis using simple liquid-liquid extraction techniques. The application of the assay to pharmacokinetic studies in humans is presented. After administration of a single oral dose of 400mg mephenoxalone dispersed in 150ml water to six young, healthy volunteers, the compound was rapidly absorbed with the peak concentration of 8μg/ml occurring after about 1 hour. The elimination half-life was approximately 3 hours. The drug was extensively metabolized with only about 1 percent of the administered dose being excreted unchanged in the urine after 24 hours. The bioavailability of a newly developed mephenoxalone-containing tablet was also investigated. The drug was absorbed more rapidly from the tablet than from the dispersed dose. This was attributed to a shorter in vivo dissolution time on the basis of in vitro tests, but this effect is not expected to be clinically significant. In addition, two human urinary metabolites of mephenoxalone were identified as unconjugated hydroxylated derivatives using thermospray HPLC-mass spectrometry. The plasma protein-binding properties of mephenoxalone were also investigated.
- Full Text:
- Date Issued: 1988