A theological consideration of the office, sacrifice, ministry and perfection of Christ as high priest in the Epistle to the Hebrews, and their significance for the believer and the community of faith
- Authors: Furness, Darryl Hilary
- Date: 1989
- Subjects: Jesus Christ -- Person and offices , Bible -- Hebrews -- Criticism, interpretation, etc. , Sacrifice -- Christianity
- Language: English
- Type: Thesis , Masters , MTh
- Identifier: vital:1219 , http://hdl.handle.net/10962/d1001549
- Description: In these last days God has spoken his last and most complete word to man in a Son, Jesus Christ. In his person and ministry Christ is the agent of creation and heir of the spiritual and material estate of God. He is the locus of the fulfilment of the revelatory plan of God, and, as such, is superior to the angels, the ministers of salvation within the created order, and Moses, the faithful minister of God's people Israel. Christ not only fulfils the necessary qualification for priesthood under the old covenant, that of divine appointment, but is appointed by God a high priest for ever after the order of Melchizedek. This establishes and authenticates the high priestly office of Christ. Jesus Christ, Iike the high priests of the old covenant, must offer gifts and sacrifices to God. The sacrifice of Christ fulfils the sacrificial code of Leviticus 1-7, his sacrifice being a gift to God, communion with God, and an expiatory sacrifice. But more than this the sacrifice of Christ fulfils the Day of Atonement ritual of Leviticus 16 as well as the covenant sacrifice of Exodus 24. The sacrifice of Christ is essentially once for all, being that unique action which alone can ultimately deal with sin. The uniqueness of Christ's sacrifice depends on the uniqueness of the person of Christ and his superior high priestly office. In his sacrificial action Christ is also the sin-bearer. The high priestly sacrifice of Christ determines the form of the high priestly ministry of Christ, which is also gift to God, communion with God, has expiatory significance, and is a ministry of the new covenant . The high priestly ministry of Christ is a ministry which is continuous through time and is both contemporaneous with and subsequent to his sacrifice. In this continuity through time the ministry of Christ is the foundation of both the faith of believers and their perfection as sons. In the execution of his high priestly ministry Christ is perfected by God through the learning of obedience. The humiliation of Christ and his learning of obedience becomes the foundation of the perfecting of believers. It is as the One who is perfected through suffering that Christ becomes the pioneer of salvation and the pioneer and perfecter of the faith of the people of God. Through faith in Christ the people of God constitute a pilgrim people who, on the basis of Christ's perfection, are themselves perfected and brought to glory. The pilgrim people of God share in the priesthood of Christ and constitute a priesthood of all believers. In their pilgrimage of faith they are to demonstrate their confidence, endurance, obedience, and discipline, and in their running of the race of pilgrimage are to exercise their own ministry as they progress to glory and the sabbath rest of God. The high priesthood of Christ has implications for the common life of the people of God and is at the foundation of our understanding of the Christian life.
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- Date Issued: 1989
Absent or missing fathers and male sexual difficulties : their manifestations in dream symbolism and interpretation
- Authors: Fatman, Joseph Mzimkulu
- Date: 1989
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:21171 , http://hdl.handle.net/10962/6717
- Description: This thesis uses the individual case method in order to demonstrate the effects of paternal deprivation including variations in patterns of inadequate fathering on a male's psychological and sexual development. More specifically, it shows that father absence is a highly significant factor in the development of serious male psychological and social difficulties. Much of the material in the text concerns the impact of father absence on male 'sex-role' development. It is, as such further concerned with showing that paternal deprivation can lead to conflicts and rigidities in the individual's sex-role adjustment, which, in turn, are frequently related to deficits in emotional, cognitive and interpersonal functioning. Due consideration is given to such family characteristics as the mother's response to the father's absence which generally manifests as pathological and debilitating intrusiveness on the affected son's masculine identity. Other family features considered are the role of older male siblings and father substitutes e.g. stepfathers in the amelioration or exacerbation of these difficulties. An assumption is made that where such substitutes are competent father absence per se can have no more than a limited influence on the son's sex role development and vice versa. Some dreams from the case are presented for the purpose of viewing how the considered difficulties manifest in dream symbolism. Attention is paid also to the question as to whether such dreams can provide any useful clues toward an understanding of the nature, type and psychological situatedness of the affected people. Consequently, a discussion of a psychotherapy attempt is made to show that a competent understanding and interpretation of such symbolism will have an invaluable healing benefit on these difficulties.
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- Date Issued: 1989
An "unobtrusive art" : Elizabeth Gaskell's use of place in Ruth, North and South, and Wives and Daughters
- Authors: Eve, Vivian Jeanette
- Date: 1989
- Subjects: Gaskell, Elizabeth Cleghorn, 1810-1865 , Gaskell, Elizabeth Cleghorn, 1810-1865 -- Criticism and interpretation
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2173 , http://hdl.handle.net/10962/d1001824
- Description: The purpose of this study is to show how Elizabeth Gaskell creates a sense of place and why place is important in her novels. Gaskell's life and works indicate an interest in place and an ability to recreate it, but, although most critics mention her descriptive powers, few examine how a sense of place is achieved. Indeed, setting as a tool of analysis has received critical attention only fairly recently. Here the term 'place' has been chosen because it embraces the social, physical, and personal aspects of setting as well as the objects with which spaces are furnished, and for the purpose of discussing its significance a model of the novel has been devised which shows the interrelationships of character, action, setting, language, and ideas, as well as the influence of context (Introduction). Gaskell creates a sense of place in many unobtrusive ways, but particularly important are point of view, windows as vantage points, the connection of place with memory, and similarities in perception between scenes in the novels and fashions in painting (Chapter One). An analysis of Ruth illustrates the interrelationship of character and place. Ruth's journey mirrors her spiritual development, and character is often revealed through response to environment or the displacement of emotions onto it, while place is also used to signify innocence and to emphasize the plea for understanding of the unmarried mother and her child (Chapter Two). Places in North and South represent important aspects of newly industrialized Britain, and are significant to the novel's vision of a coherent society; an examination of how apparently irreconcilable communities are shown to be mutually dependent underlines the importance of place to the novel's ideas (Chapter Three). Wives and Daughters has a complicated plot based on a number of parallel, interlocking stories each centred on a home in the neighbourhood of Hollingford. How event, story, and plot are connected to these places shows their relationship with action (Chapter Four). Thus is an appreciation of Gaskell's literary achievement enhanced, and place shown to be a significant element in her novels.
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- Date Issued: 1989
An adaptive discrete cosine transform coding scheme for digital x-ray images
- Authors: Mclean, Ivan Hugh
- Date: 1989
- Subjects: X-rays -- Digitization Image processing -- Digital techniques Diagnostic imaging Computer storage devices
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4567 , http://hdl.handle.net/10962/d1002032
- Description: The ongoing development of storage devices and technologies for medical image management has led to a growth in the digital archiving of these images. The characteristics of medical x-rays are examined, and a number of digital coding methods are considered. An investigation of several fast cosine transform algorithms is carried out. An adaptive cosine transform coding technique is implemented which produces good quality images using bit rates lower than 0.38 bits per picture element
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- Date Issued: 1989
An assessment of the South African longline fishery with emphasis on stock integrity of kingklip, Genypterus capensis (Pisces : ophidiidae)
- Authors: Japp, David William
- Date: 1989
- Subjects: Genypterus capensis , Ophidiidae , Fisheries -- South Africa , Longlining (Fisheries) -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5209 , http://hdl.handle.net/10962/d1004660 , Genypterus capensis , Ophidiidae , Fisheries -- South Africa , Longlining (Fisheries) -- South Africa
- Description: The South African demersal longline experiment is assessed with emphasis on the target species, kingklip Genypterus capensis. The hypothesis that kingklip on the South African coast comprise a unit stock is tested. Recommendations for the management of the fishery are made. Longlining was found to be commercially viable. Techniques have been developed to target on either kingklip or the Cape hakes, Herluccius capensis and H. paradoxus. Longline fishermen exploit the kingklip spawner stock from August to No v ember by taking advantage of prespawning aggregations on the South-East Coast . Effort switches to the West Coast in late summer and early winter where kingklip are less abundant and a larger proportion of hake is caught. Catch rates of kingklip on the South Coast have declined sharply and the resource there has been exploited at a rate greater than that required to retain 50% of the unexploited biomass . There is a 17,6% probability that the spawner biomass on the South Coast has already been depleted below its pristine level. On the West Coast the catch rates of kingklip are lower than on the South Coast and have not changed significantly, although within the 95% confidence limits there is a possibility that the resource there has also been depleted below 50% of its pristine level. Genypterus capensis on the South African coast comprise a unit stock. Comparison of kingklip morphology using multivariate and discriminant function analysis and of otolith morphology using univariate statistics shows that there are no significant differences between the fish on the West and South Coasts. They are a slow growing species and were aged up to 25 years. Kingklip on the West Coast are smaller and have a lower L~ than those on the South Coast, but this is not a characteristic of discrete stocks. Kingklip on the South Coast mature earlier than those on the West Coast and aggregate to spawn on the South - East Coast in spring. There is no obvious spawning period on the West Coast. It is hypothesized that kingklip spawning on the South-East Coast is in response to favourable environmental conditions that enhances the survival of their eggs and larvae. It is recommended that demersal longlining be established as a permanent kingklip-directed fishery but that effort should not be allowed to increase. The West and South Coasts should be managed .separately. A TAC of 5 OOOt for kingklip should be introduced for 1989 of which 2 OOOt should be allocated to the West Coast and 3 OOOt to the South Coast . A closed season for kingklip from 1 August to 30 September on the South-East Coast is recommended. Hake-directed longlining should not be allowed as its effect on the hake spawner stocks are unknown and could be a potential threat to the stability of the demersal trawl fishery.
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- Date Issued: 1989
An erosion hazard assessment technique for Ciskei
- Authors: Weaver, Alex van Breda
- Date: 1989
- Subjects: Soil erosion -- South Africa -- Ciskei
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4792 , http://hdl.handle.net/10962/d1001892
- Description: The study examines the relationship between the spatial variation in soil erosion and various natural and anthropogenic attributes of the region between the coastal plateau and the Winterberg escarpment of Ciskei. A raster-based geographical information system is derived for four separate study catchments and data on soil erosion and various soil erosion hazard indices are read into a computerised data matrix. The independent variables (soil erosion hazard indices) used in the study are selected on the basis of a review of the literature and on the availability of data in the Ciskei region. Multivariate analyses of the relationship between soil erosion and the various independent variables reveals that the primary variables affecting the spatial variation in soil erosion are land use, dominant soil type, geology, veld type and mean annual precipitation. All of these variables are readily quantifiable at the regional scale for large areas of Ciskei. An erosion hazard assessment model for use in central Ciskei is developed based on the results of the statistical analyses. The model is tested in separate study areas and is shown to provide an efficient method of identifying areas of differing susceptibility to soil erosion. The derived model is simple to operate and has input requirements which are easily met. It can be applied without the aid of computers, or where large areas are to be mapped it is well suited to computerisation
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- Date Issued: 1989
An examination of the use of the contextual question in examining Shakespeare's plays at the standard ten level in Cape Education Department schools
- Authors: Mullineux, Peter Newton
- Date: 1989
- Subjects: Shakespeare, William, 1564-1616 -- Study and teaching , English literature -- Examinations, questions, etc. , English literature -- Study and teaching (Secondary) -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1346 , http://hdl.handle.net/10962/d1001412
- Description: Six years as a sub-examiner of both literature and written work made me aware of a personal dissatisfaction with the system of examining. This research examines in detail the use of the contextual question in examining Shakespeare's plays. The main concern has been to try to deduce what constitutes a good set of contextual questions. This area appears to have attracted little detailed research. However, there is much general writing on the teaching of literature. There is no major conclusion in the dissertation but rather a series of conclusions related to the concept of the contextual question. These are summarised towards the end of chapter three. Some general recommendations appear at the end of chapter three as a sub-heading. The findings of this investigation indicate a need for further research into the system of examining literature in the Cape. It is hoped that teachers and examiners reading this dissertation will be able to use the findings to provide a possible framework for the setting of sound contextual questions
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- Date Issued: 1989
An existential-phenomenological explication of being-a-black student at a predominantly white university, with special reference to Rhodes University
- Authors: Harilall, Rehena Ranir
- Date: 1989
- Subjects: Racism , South Africa , Black university students , College , Racism -- South Africa -- Psychological aspects , College students, Black , College students, Black -- South Africa -- Psychology
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2903 , http://hdl.handle.net/10962/d1002067
- Description: This study attempts to explore, theoretically and empirically, the experience of being black in a predominantly white university. It is more specifically concerned with perceived interaction between members of different cultural and ethnic groups, namely, between black and white. Using the existential-phenomenological method the experience of seven subjects, both male and female, were explicated. This explication revealed that black students become aware of their "difference" during interaction with members of the dominant white group. The black students perceive the behaviour of the white-dominant group to be racist and this creates a great deal of latent hostility, anger, and resentment. It is suggested that a programme be developed to diffuse the conflict situation during intergroup interaction at university.
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- Date Issued: 1989
An experiment in literary critical appreciation, using a comparison between three nineteenth-century novels prescribed by the Cape Education Department and a random sample of Mills and Boon popular romance fiction
- Authors: Stear, Natalie Jean
- Date: 1989
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1347 , http://hdl.handle.net/10962/d1001413
- Description: The novel as an art form provides writers with the opportunity of exercising their imaginative power to create a 'speaking picture' of life. Whatever form that picture may take, it is vital that it should offer relevance to real life. The literature teacher's earnest intention, therefore, should be to encourage an appreciation of literary novels among adolescent pupils in order to enrich the quality of their living and to sharpen their awareness of the human condition. Teaching adolescents to discern the essential differences between the novel of quality and the novel which exists purely to provide wish-fulfilment and sensual titillation is the aim of this dissertation. Thus a structural analysis of the literary novel is presented, asserting that certain aspects of the novel should be identified and appreciated by the developing reader. Three novels which have recently been prescribed by the Cape Education Department for pupils in standards 9 or 10 are briefly examined in order to test the itensity of their illusion of reality in conjuction with the literary skills of their creators. These novels are Pride and Prejudice (Jane Austen), Wuthering Heights (Emily Brontë) and Tess of the d'Urbervilles (Thomas Hardy). Each has been viewed from a different angle, but each reveals its right to be evaluated as great literature. In order to develop literary appreciation among teenage readers, and to convince them of the delights and insights to be gained, it is proposed that comparison of the 'literary' with the 'unliterary' novel should promote discernment and sound judgement. Popular romance fiction, as published by Mills & Boon, is therefore investigated. These stories enjoy immense popularity, particularly among teenage girls. Far from promoting the illusion that life has been faithfully represented, these novels are shown to reveal a world manipulated to suit both the author and the reader: life as it might have been rather than as it is. A sample of adolescent responses to this type of comparative reading is provided in the last chapter. These responses reveal that the pupils' critical faculties were engaged and literary appreciation was evident
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- Date Issued: 1989
An explication of the dual nature of narcissism in Patrick White's novel The solid mandala
- Authors: Watts, Jacqueline Anne
- Date: 1989
- Subjects: White, Patrick, 1912-1990. The Solid Mandala White, Patrick, 1912-1990 -- Criticism and interpretation
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2907 , http://hdl.handle.net/10962/d1002072
- Description: The focus of this thesis has been to engage in a hermeneutic dialogue with Patrick White's novel The solid mandala, to provide an explication of the dual nature of narcissistic wounding. To this end a brief review of Patrick White's novels is given, which traces a thematic development of the hero's strivings to attain wholeness and merger with an idealized image. This struggle is understood to reflect man's strivings to return to a state of omnipotent fusion with the maternal image, be it God, nature, the idealized other, or the self. Literature which reflects the dual nature of narcissistic wounding is reviewed, and the concept of narcissism is traced from the historical roots of Freud, to current understandings of the function and experience of narcissism. Emphasis is given to understanding the experiential nature of narcissistic wounding. As such it is implied that narcissism is a normal developmental component which requires the facilitation of containment and reflection for its transformation into appropriate adult functioning. The importance of the maternal environment is discussed, together with the various theoretical conceptualizations of the consequences of failure of the environment. The hermeneutic dialogue with the novel's description of the experiences of the twins, Waldo and Arthur provides the basis for an amplification of the experience of narcissistic wounding. This amplification is used as clinical material from which a number of psychoanalytic formulations are drawn. These formulations are supported by a number of clinical examples from the researcher's own practice. There appears to be evidence for the value of focusing on the dual nature of the experience of narcissistic wounding. This focus reveals two aspects of experience, a damaged, positive, libidinal aspect and a defensive, pathological destructive aspect. Amplification of these two aspects of experience contribute to further the understanding of the conflictual experience of narcissistic wounding, and suggest the necessity for such an understanding for effective therapeutic intervention
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- Date Issued: 1989
An investigation into the dietary requirements of Oreochromis Mossambicus fry and the formulation and preparation of a dry food for use in aquaculture
- Authors: Thorpe, Peter Stuart
- Date: 1989
- Subjects: Cichlids , Tilapia -- Nutrition , Aquaculture
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5184 , http://hdl.handle.net/10962/d1001960 , Cichlids , Tilapia -- Nutrition , Aquaculture
- Description: The need for developing a dry feed which satisfied the nutrient requirements of Oreochromis mossambicus fry was identified. The spawning and grading techniques which resulted in a higher fecundity and ensured uniformity within and between samples of fry are discussed. Preparation techniques were developed which met the physical requirements of fry feeds. An analysis of the flesh and yolk sac fry for amino acid composition was undertaken. The initial test diet was based on these results, as well as on the natural feeding ecology of the species. Feeding trials were undertaken and growth responses monitored to determine the optimum levels of the various dietary components. A feed was developed which gave superior growth to that obtained with natural food organisms. This feed consisted of Torula yeast (47%), Weider Super Protein (44.39%), Vitamin supplement (0.45% - multivitamin), additional vitamin C supplement (0.16%), Spirulina (5%), and methionine supplement (3%). An optimum particle size range for O. mossambicus fry (between 5 & 25mm) was established at 125-200um. The fry should be fed the following feed ratios depending on age: 30.4% body weight/day up to day 5, 30.6% body weight/day up to day 10 and 25.1% body weight/day up to day 15. An optimum feeding frequency of 8/10hr day was recommended. A feed conversion ratio of 1.24:1 and a protein efficiency ratio of 0.682:1 was obtained. Digestable energy of the feed was determined at 16.1 kj/g feed. The established dry feed is suitable for use in commercial hatcheries, and as a formulation for further research on the intensive rearing of O. mossambicus fry.
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- Date Issued: 1989
An investigation into the need for counselling service at the Cape College of Education
- Authors: Blom, Lana-Lorraine
- Date: 1989
- Subjects: Counseling in higher education Teachers -- Training of -- South Africa -- Eastern Cape Cape College of Education Counseling
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1610 , http://hdl.handle.net/10962/d1003492
- Description: Many students find that their greatest academic step is that from high school to college or university, and that it involves a transition affecting almost all aspects of their lives. In order to offer assistance to students experiencing transitional and other personal problems, Student Counselling Services have been established and are operature at most tertiary institutions in Southern Africa. Currently no such service exists on the campus of the Cape College of Education, Fort Beaufort. This exploratory study attempts to determine whether there is a need for such a service and further, to establish factors which might encourage or discourage students from using such a service. An open-ended questionnaire was administered to 178 students at the College in order to gain insight into their ideas and feelings and what they perceive their needs to be. Through an explication of the student protocols, several major themes emerged and are discussed in detail. The research findings suggest a need for the establishment of a counselling service, and shed some light on factors which need be considered should such a service be offered. The methodological approach is discussed as well as recommendations for improvements.
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- Date Issued: 1989
An investigation into the pre-service training of secondary school mathematics teachers at colleges of education administered by the House of Representatives
- Authors: Hendricks, Mogamat Armien
- Date: 1989
- Subjects: Mathematics teachers -- Training of -- South Africa Mathematics -- Study and teaching (Higher) -- South Africa Colored people (South Africa) -- Education Colored people (South Africa) -- Education (Secondary)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1864 , http://hdl.handle.net/10962/d1004591
- Description: This study involves an investigatioh into the nature and effectiveness of the pre-service training, where provided, of secondary school Mathematics teachers at the 11 colleges of education administered by the House of Representatives in the Republic of South Africa. The purpose of this study is to determine whether the HDE (Secondary) course offered at some of the aforementioned colleges of education is justified, In spite of the fact that it contravenes the requirements of the Education Act, No. 73 of 1969. Three different questionnaires were designed and during 1986 were sent to heads of Mathematics departments at the aforementioned colleges of education , to Mathematics teacher educators at these colleges and to beginning secondary school Mathematics teachers, teaching at schools administered by the House of Representatives in the Eastern Cape and Natal. The findings of this study show that the secondary course for Mathematics teachers is only offered at 5 of the 11 colleges of education and only a small percentage of students take this course. During 1986 most of the Mathematics teacher educators at the colleges of education were not suitably qualified. The study also shows that the Mathematics curriculum for the training of secondary school teachers is inadequate and a revision thereof is thus recommended. An obvious conclusion drawn from the findings is that the training of secondary school Mathematics teachers at these colleges of education is still in an early stage of development. One of the main recommendations of this study is that the training of secondary school Mathematics teachers at colleges of education administered by the House of Representatives should be terminated , in view of its ineffectiveness and In accordance with Education Act , No . 73 of 1969. On the other hand, in case this is not possible, suggestions are also made for the improvement of the pre-service training of secondary school mathematics teachers at these colleges of education.
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- Date Issued: 1989
An investigation into the properties of cotton fibres as used in nonwoven fabrics
- Authors: Lutseke, Nothando Sazikazi
- Date: 1989
- Subjects: Cotton -- Analysis , Fibers -- Analysis , Nonwoven fabrics -- Analysis , Textile chemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4552 , http://hdl.handle.net/10962/d1018241
- Description: The purpose of this investigation was to determine the properties that characterise cotton fibres in the various stages in the CPNF process as well as to determine which fibre characteristics a r e required to entangle the fibres to produce a successful CPNF . The criteria adopted in this work for a successful CPNF include: 1. the tensile strength of the fabrics 2. a well-defined pattern 3. absorbency and wicking The properties selected for investigation were 1. the cotton fibre surface (using SEM and DSC analyses) 2. the degree of degradation of the cotton fibre as a result of the CPNF process (using cellulose fluidity measurements) 3. the non-cellulosic content of the fibre (using IR, DSC, and Chemical analyses) 4. fibre friction 5. absorbency and wicking 6. tensile properties Analysis of the results indicates clearly what the fundamental properties of the cotton fibre must be for a successful cotton CPNF to be manufactured. The conclusions also indicate the necessary properties a man-made fibre must have to produce a successful CPNF.
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- Date Issued: 1989
An investigation into the social/personality guidance needs of a group of secondary school pupils
- Authors: McGregor, Dale
- Date: 1989
- Subjects: Interpersonal relations in adolescence , Personality in adolescence , Educational counseling , Adolescent psychology , Youth -- Counseling of
- Language: English
- Type: text , Thesis , Masters , MEd
- Identifier: vital:1353 , http://hdl.handle.net/10962/d1001419
- Description: School guidance aims to meet the social/personality, educational and vocational needs of pupils, and the curriculum, organised and drawn up by the relevant State education departments, attempts to address these needs. This investigation set out to discover the guidance needs of pupils specifically in the social/personality area, and further, to state these needs in such a way as to allow the logical development of guidance programmes. Group and individual interviews were conducted using a sample of 72 high school pupils, selected from standards six to eight. The results show clearly the areas in which the pupils perceive their needs to lie. It is also apparent that further research in this area is strongly indicated.
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- Date Issued: 1989
Apneic Bradycardia : terrestrial and aquatic responses in man under working conditions
- Authors: Manley, Elizabeth
- Date: 1989
- Subjects: Apnea Respiration -- Measurement Heart rate monitoring Work -- Physiological aspects Underwater -- Physiology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5098 , http://hdl.handle.net/10962/d1001838
- Description: The focus of this research was the reappraisal in physiological and psychophysical terms of current equivocal theories regarding the onset, course and termination of apneic bradycardia. Sixteen healthy male subjects participated in four separate testing sessions . Maximal oxygen consumption (VO₂ max) was measured on land and underwater using an identical direct, continuous progressive cycle ergometer test. On each of two other occasions subjects exercised in either environment at 50, 70 and 90% of the appropriate VO₂ max, during which time heart rate was continuously recorded. An initial apneic bout at each exercise intensity was followed by performance of the same workload without apnea for an equivalent period of time. Ratings of perceived exertion (RPE) were also monitored. While apneic bradycardia occurred at each exercise intensity studied underwater, it was apparent only at 50% VO₂ max on land. With the exception of between 50 and 90% VO₂ max on land, the mean apneic heart rates did not differ with varying exercise intensity (p<0.05); nor did the lowest heart rate recorded, although this was lower underwater than on land. Apart from 70% VO₂ max on land, apneic heart rates were lower than the equivalent values measured during exercise without apnea. Land and underwater heart rates during apneic and non-apneic conditions did not differ until 90% VO₂ max. The effects of increasing exercise intensity upon the onset of bradycardia were evident in that it occurred earlier at 50% VO₂ max underwater than at the heavier workloads, and only at 50% VO₂ max on land. The mean breath-hold duration did not differ between the land and underwater environments, nor was it affected by increasing exercise intensity. The order in which breath-holds was performed did not alter the length of apnea. Land and underwater RPE did not differ and increased with increasing exercise intensity in both environments. During apneic exercise RPE was greater than the equivalent exercise without apnea. Twelve of the original 16 subjects were divided equally into two groups on the basis of vital capacity expressed relative to body surface area. Vital capacity was measured during the first laboratory session. Neither the mean heart rate response to apneic exercise at 50% V0₂ max in both environments, nor the lowest heart rates recorded differed between groups, prompting the conclusion that lung volume did not affect apneic bradycardia. Despite a longer breath-hold duration for Group A (large relative lung volume) than Group B (small relative lung volume), the onset point of bradycardia was the same for either group when expressed relative to total breath-hold duration
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- Date Issued: 1989
Arguments for other minds
- Authors: Dowling, Dolina Sylvia
- Date: 1989
- Subjects: Mind and body -- Philosophy
- Language: English
- Type: text , Thesis , Masters , MA
- Identifier: vital:2702 , http://hdl.handle.net/10962/d1001977
- Description: If I am aware of my own mental states by introspection (a) How can I know that other people have minds? and (b) How can I know what their mental states are? These are two of the questions with which I will be concerned in this dissertation. I discuss five different attempts to deal with them. (i) The claim that we can know that other people have minds by an argument from analogy. I show a number of serious flaws in Russell's and other versions of this argument. (ii) Malcolm's thesis that the criteria by which we apply mental terms to others are just different from the criteria one applies in one's own case. I argue that Halcolm's accounts of both first- and third-person criteria are not adequate. (iii) I consider Strawson claim that 'persons' is a primitive concept and that behavioural criteria are "logically adequate" for determining the correctness of statements about the mental states of others. I argue that both of his key concepts are underanalysed. (iv) A quite different attempt to answer our questions (a) and (b) is given by the empirical realist who argues that knowledge claims about other minds are best understood as hypotheses in a wider psycho-physical theory. I show that the major fault in Putnam's version of empirical realism is that he overlooks the subjective character of (iii) our mental states. (v) Finally I consider the claim, due to Nagel, that a conception of mental states is possible which incorporates both subjective and objective aspects of the phenonemon. I speculate that with a great deal of development this approach might hold the answer to our questions.
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- Date Issued: 1989
Aspekte van die prosa van Boerneef met spesifieke verwysing na die bundel Boplaas
- Authors: Meintjes, William Godfrey
- Date: 1989
- Subjects: Boerneef, 1897-1967 , Boplaas
- Language: Afrikaans
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3570 , http://hdl.handle.net/10962/d1002093
- Description: This thesis is a report on a "rereading" (in the sense in which Roland Barthes uses the word) of the short texts of Boerneef (Izak Wilhelmus van der Merwe 1897-1967) published under the title Boplaas in 1938. Boerneef's prose is explored with specific reference to this one volume. The unity of the volume of texts is examined and textual indications of relations with other texts in the oeuvre are explored. In this way the thesis indicates how transtextuality determines meaning both in the individual texts as well as in the volume as a whole. The process of (re)reading in this thesis traces how, as a result of the exploration of the textual elements, a Boplaas code is generated. This Boplaas code signifies both the space and the ethos of Boplaas. Paternalism, feudalism and racism manifest themselves as important aspects of the ethos. The social disintegration which is endemic in this ethos is not caused, but merely accelerated by external impulses. The analysis indicates how, as a result of the specific organization of the narrative material, the text questions the feudal status quo. A process of demythologising of the vroegre boere-paradijs is therefore already present in the earliest Boerneef texts. However, the examination of Boerneef's prose also indicates that these texts go beyond the socio-politico-economic aspects by encoding the existential aspects of man's existence. , Hierdie proefskrif is die vers lag van 'n "rereading" (in die Barthesiaanse sin) van Boerneef (Izak Wi lhelmus van der Merwe 1897- 1967) se bundel Boplaas (1938). Die prosa van Boerneef word verken met spesifieke toespitsing op die een bundel . Die bundel-eenheid word ondersoek en tekstuele leidrade wat geledinge met ander tekste in die oeuvre aandui , word gevolg. Hierdeur word aangetoon hoe die betekenis en die be-tekenisprosesse van die tekste onderling, en die bundel as 'n geheel, op transtekstuele samehang berus. In hierdie leesproses word nagegaan hoe, deur middel van die ontginning van die tekstuele elemente, 'n Boplaas-kode in die narratiewe proses tot stand kom. Hierdie Boplaas-kode beteken 'n Boplaas-ruimte asook 'n Boplaas-etos. Paternalisme, feodalisme en rassisme word as belangrike aspekte van hierdie bestel geenkodeer en die tekste toon aan dat sosiale versplintering endemies aan die betrokke orde is en slegs deur impulse van buite verhaas word. In die bundel-analise word aangetoon hoe, as gevolg van die organisasie van die vertel stof, hierdie bundel bevraagtekenend ten opsigte van die feodale status quo staan. As gevolg hiervan is daar dus alreeds in die vroegste prosa van Boerneef 'n demitologisering van die "vroegre boere- paradijs" ingebed. Die ondersoek toon egter ook aan dat die Boplaas-tekste by die sosiopolitiko- ekonomiese dimensies verby óók die eksistensële aspekte van die mens se betstaan be-teken.
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- Date Issued: 1989
Assessment of factors influencing the quality of surface and ground water in the Hout Bay river catchment
- Authors: Pearce, Meryl Winsome
- Date: 1989
- Subjects: Water -- South Africa -- Hout Bay Hydrology Water -- Pollution -- South Africa -- Hout Bay Water quality -- South Africa -- Hout Bay Aquatic ecology Water quality Hout Bay river (South Africa) Groundwater -- South Africa -- Hout Bay
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4800 , http://hdl.handle.net/10962/d1001900
- Description: An investigation into the quality of surface water and ground water was conducted during 1988 in the 38,8 km² Hout Bay River catchment near Cape Town. The main objective of the study was to determine those areas and activities which constitute a pollution source and to ascertain the relative proportion which each contributes to the pollution problem and health risk of the surf zone of the beach at Hout Ba . The objective was achieved by monitoring the chemical and microbiological attributes of the Hout Bay River, its tributaries and stormdrains in wet and dry conditions on a routine basis and during storm events. Hout Bay is a rapidly developing residential area in which sewage disposal occurs by means of septic tank soakaway systems. Ground water quality was monitored to investigate the contribution to contamination by septic tank effluent. Results showed that stormdrain effluent in dry and wet conditions and surface runoff during rainfall were the main vectors of pollution. Although the pollution concentration was high during dry conditions the greatest pollution discharge to the surf zone of Hout Bay occurred during storm events. In view of the proposed residential development it is imperative that pollution control measures be undertaken so as to secure the future recreational and aesthetic value of Hout Bay
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- Date Issued: 1989
Attitudes to family planning in the Taung area of Bophuthatswana: a social work perspective
- Authors: Thekisho, Geraldine Nomonde
- Date: 1989
- Subjects: Birth control -- South Africa -- Bophuthatswana , Bophuthatswana (South Africa) -- Social conditions
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:3277 , http://hdl.handle.net/10962/d1004914 , Birth control -- South Africa -- Bophuthatswana , Bophuthatswana (South Africa) -- Social conditions
- Description: Emphasis in the study is on the prevalence of poverty especially in the so called third world developing countries. Poverty as a social problem is caused by a number of factors, viz: Over population, unemployment, illiteracy, etc. In the case of the study the focus is the rapid population growth or "population explosion" as it is commonly known. Family planning is sen as important, but not the only strategy in combatting the interrelated problem of population growth and development. The relevance and importance of social workers, as members of a multidisciplinary team in the delivery of family planning programmes is emphasised. There is evidence in the study to support the observation that Black African people in particular are reluctant to use family planning methods. Based on this evidence, the basic assumption arrived at is that there is a general unfavourable attitude to family planning in the Taung area. The research design used is exploratory-descriptive. Of the 75 areas in the district, 10 areas were included In the investigation. A stratified random sample was used, with a sample size of 200 respondents. The interview schedule was used to collect data. It was structured and consisted primarily of close-ended questions, and was analysed using the Biomedical Data Programme (B.M.D.P.). The problem is formulated from literature concerned with population growth in the Republic of South Africa as well as Bophuthatswana. The following sub-problems were described: illegitimacy; health and economic problems associated with large families; abortion; malnutrition and malnourishment; and the absence of services of the National Family Planning Programme In the Taung area. Compatibility between social work and family planning is a central concern, with community development as a significant method of intervention. The three important concepts in the study were broadly defined, viz: Overpopulation, family planning and attitude. It was established that: -the use of family planning follows rather than precedes the process of modernisation and rising economic standards; -no family planning programme can be practised universally - because of factors such as culture, need and habit. Attitudinal change is considered based on the basic assumption arrived at. Little has been done on the subject of family planning in south Africa. With regard to the role of social work in family planning, there have been impediments along the following lines: lack of firm tradition; emphasis on treatment rather than on preventive work; a view of family planning asa health measure and to be offered solely in the medical and health services. To be active in this field social workers need formal education and training. Taung: - the area of study is predominantly rural with almost all characteristics of rural areas, those of: Irregular transport services to and from remote areas; corrugated roads; primitive sanitary conditions; poor communication system; absence of electricity in villages; illiteracy and unemployment. On the other hand, development is evident especially in the health, education and welfare fields. The central findings in the study are those arising from resistances to family planning usage - politically; culturally; morally and psychologically. The general conclusions are: The high rate of unemployment is present in the sample and there is financial dependence on partners (men); the importance of social workers in family planning is emphasised; there is a desire to have large numbers of children (children feature prominently in the area and are regarded as an asset in various ways); and lastly, improved education does lead to an increase in motivation to adopt family planning practices. Against the highlighted findings, recommendations were made, viz that: Community development be used as a strategy for change; social workers be involved as team members in family planning - in policy formulation and planning of population programmes at various levels, using different methods of intervention; paramedical aides beused - because of inter alia shortage of qualified manpower and lastly formal education and training to be granted to prospective change agents in family planning delivery programmes. , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
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- Date Issued: 1989