Educational needs of adults in Mdantsane
- Authors: McAllister, Patrick A , Young, Michael , Manona, Cecil Wele , Hart, Jo
- Date: 1992
- Subjects: Adult education -- South Africa -- Mdantsane (Ciskei) Adult education -- South Africa -- Mdantsane (Ciskei) -- Case studies
- Language: English
- Type: Book , Text
- Identifier: http://hdl.handle.net/10962/2079 , vital:20253 , ISBN 0868102423
- Description: The purpose of the study was to collect some preliminary information in advance of the inauguration of a new educational project at Fort Hare University which, under the guidance of a new Vice-Chancellor, Dr. S.M.E. Bengu, is forging for itself a new course of development as a people's University. The new project arises out of a report prepared by the International Extension College for the University of Fort Hare. The hope is that a number of innovations can be introduced into adult education in the Eastern Cape which will prove of value in meeting the needs of people living in different kinds of localities. The planning will begin in the early winter, as soon as staff have assembled, and as soon as Dr. David Warr, the international consultant to the project, is in post. It seemed sensible to conduct, in advance, one of the surveys which will be needed to underpin plans. To do this at short notice and complete it in a short time (the work did not commence until February, 1992) the best course was to rely on an experienced team from a neighbouring University, Rhodes, which had already conducted surveys in different districts within the Eastern Cape, and to bring in further support from the University of Natal , Digitised by Rhodes University Library on behalf of the Institute of Social and Economic Research (ISER)
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- Date Issued: 1992
Ipasi lentloko
- Date: 1960-07-07 , 2023-09-01
- Subjects: Beadwork , Head-band
- Language: English
- Type: realia , Personal adornment
- Identifier: http://hdl.handle.net/11260/8380 , vital:67932
- Description: A head-band a flat white bead strip edged in red and decorated in stars design with two pearl buttons at the back, worn by young man, It is part of Walter Sisulu University Beadwork Collection that was acquired from Mrs Broster in 1992,used by married man of abaThembu cultural group. , Purchased from Mrs Joan Broster , Forms part of: Walter Sisulu University Beadwork Collection
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- Date Issued: 1960-07-07
Isiyeye samaMpondomise
- Date: 1953-07-11 , 2023-09-01
- Subjects: Beadwork , Necklace
- Language: English
- Type: realia , Personal adornment
- Identifier: http://hdl.handle.net/11260/8634 , vital:68063
- Description: Isiyeye samaMpondomise, this is a bead strip neckband of white beads decorated with navy river design with a yellow fringe and six navy and white streamers and tied at the back of the neck with two pearl buttons it is worn by udult men and women of the Mpondomise cultural group, The necklace forms part of beadwork collection that was acquired from Mrs Broster in 1992. , Purchased from Mrs Joan Broster , Forms part of: Walter Sisulu University Beadwork Collection
- Full Text: false
- Date Issued: 1953-07-11
The evaluation of indomethacin and theophylline oral controlled/modified-release dosage forms in vitro-in vivo correlations
- Authors: Tandt, Ludo Alfons Germaan Luc
- Date: 1992
- Subjects: Theophylline , Indomethacin , Drugs -- Controlled release , Drugs -- Dosage forms
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3794 , http://hdl.handle.net/10962/d1003272 , Theophylline , Indomethacin , Drugs -- Controlled release , Drugs -- Dosage forms
- Description: Over the past few decades many researchers have investigated the utility of in vitro - in vivo correlations for the assessment of dosage forms. These investigations are, however, dependent on reproducible dissolution data and well conducted biostudies in order to establish meaningful and robust correlations. Despite the fact that the establishment of such correlations is perhaps idealistic, considerable interest has still been shown in this area of research. Various Controlled/Modified Release Dosage Forms (CMRD's) of theophylline, a weakly basic drug, and indomethacin, a weakly acidic drug, were assessed in order to establish in vitro - in vivo correlations. Dissolution rate studies were carried out using either the USP basket or paddle apparatus. The dissolution rate studies were conducted in a range of dissolution media of varying pH. Bioavailability studies were conducted on the dosage forms used by the Biopharmaceutics Research Institute at Rhodes University. The results of these biostudies were kindly made available for use in this research project. Type A correlations were established using a mathematical simulation process whereby expected in vivo responses are simulated and compared to actual profiles obtained for the dosage forms. In order to perform the simulations the dissolution rate profiles were stripped and using linear regression and the methods of residuals the dissolution rate order and the relevant dissolution rates were obtained. The results of the s imulations indicated that the in vivo serum concentration-time curves could be accurately predicted for the theophylline dosage forms but to a lesser extent, for the indomethacin formulations. The dissolution rate studies indicated that the paddle method is a suitable method for dissolution rate studies of theophylline CMRD's, although it appeared that the optimum pH of the dissolution medium was formulation dependent. Dissolution rate studies conducted on indomethacin formulations indicated that the USP specified basket method for extended-release indomethacin formulations was not able to distinguish between two formulations which exhibited different in vivo profiles. The conversion to the paddle method was, however, able to highlight the differences between these formulations. The use of three dimensional topographs to depict dissolution rate profiles was demonstrated for formulations of both theophylline and indomethacin. The topographs enabled the successful differentiation between bioinequivalent formulations. The dissolution rate profiles were also fitted to the Wei bull equation and the parameters obtained from this were compared to the Weibull parameters obtained from the in vivo absorption plots obtained using the Wagner-Nelson method. The results indicated that the Weibull function was suitable to describe both the in vivo and in vitro data. The following recommendations for the preformulation dissolution studies of weakly acidic and weakly basic drugs are proposed. The dissolution rate studies of weakly acid drugs, such as indomethacin, should be carried out over a range of pH utilising the paddle apparatus. Three dimensional topographs based on the dissolution data should be constructed and used as a comparative tool for different formulations. Based on these comparisons the appropriate formulation can then be selected for a pilot scale in vivo bioavailability study. The dissolution rate studies of weakly basic drugs, such as theophylline, should be carried out over a range of pH utilising the paddle apparatus. The dissolution data should then be used to simulate the expected in vivo profile and on this basis the appropriate formulation selected for a pilot scale bioavailability study. The above approach to the preformulation studies of new CMRO's would allow for the more careful selection of new dosage forms and could thus eliminate costly and unnecessary bioavailability studies performed on inferior formulations.
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- Date Issued: 1992
Developing a problem solving approach to primary mathematics teaching: a case study
- Authors: Naidoo, Anandhavelli
- Date: 1992
- Subjects: Mathematics -- Study and teaching (Elementary) Problem solving -- Study and teaching (Elementary)
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1493 , http://hdl.handle.net/10962/d1003374
- Description: According to recent research a focus in teaching mathematics to children is the development of problem solving abilities. Problem solving means the process of applying mathematical knowledge and skills to unfamiliar situations. A case study was done using a problem solving approach to the learning and teaching of mathematics with a sample of teachers registered at the Umlazi College For Further Education. These teachers were familiar with the traditional approach of teaching mathematics through drill and practice methods. The new syllabus that is to be implemented emphasises a problem solving approach to the teaching of mathematics. This study set out to implement a problem solving approach with primary school mathematics teachers so that they would be someway prepared for the innovations of the new syllabus. Workshops were conducted using an action research approach with discourse and practice leading to reconstruction with improvements. Early theorists like Piaget and Bruner offered ways of understanding children's learning, to help the teacher develop his teaching. Dienes introduced an element of play and Dewey spoke of the importance of experience. Dienes and Dewey show the first positive signs of recognising the importance of social interaction in the learning situation. Social interaction lays emphasis on language and discussion in the mathematics classroom. A social constructivist model of teaching and learning was used for the research. This research includes a study of the established ideas on developing a problem solving approach to mathematics teaching. These ideas were incorporated into the workshops that the group of teachers attended. During the workshops teachers were gradually exposed to the essence of problem solving techniques through much group discussion and doing practical exercises, which they could then implement in their classes. The teachers reported back at each subsequent workshop. A non-participant observer evaluated the development at the workshops. The workshops' success was evident from the change in the teachers' attitudes and behaviour as well as their feedback of what transpired in the classroom. They reported on the change in their roles as information suppliers to facilitators where the thinking process was focused on, rather than the importance of a correct answer. In the workshops the teachers themselves moved from passive listeners to active participants. It would appear from this preliminary investigation that through using a problem solving approach in workshops, inservice teachers can benefit constructively from this approach and will attempt to use it in their own teaching.
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- Date Issued: 1992
The artificial recharge of urban stormwater runoff in the Atlantis coastal aquifer
- Authors: Wright, Alan
- Date: 1992
- Subjects: Atlantis water resource management scheme , Urban hydrology -- South Africa , Urban runoff -- South Africa , Storm sewers -- South Africa , Water resources development -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4817 , http://hdl.handle.net/10962/d1005491 , Atlantis water resource management scheme , Urban hydrology -- South Africa , Urban runoff -- South Africa , Storm sewers -- South Africa , Water resources development -- South Africa
- Description: The thesis covers the investigation of the storm water runoff and artificial recharge components of the Atlantis Water Resource Management Scheme in the Southwestern Cape. The objective of the study was to obtain an in-depth knowledge of the process of artificial recharge of urban storm water runoff, in order to identify the most efficient recharge management strategy for the Atlantis aquifer. To achieve the objective it was necessary to first study the existing knowledge on urban storm water hydrology and artificial recharge by spreading, and to create a conceptual model of what might be expected. The study area was then investigated to examine how closely the actual situation was reflected by the conceptual model, enabling recommendations to be made for the sound management of the system. The stormwater runoff component was found to differ from most urban hydrological studies as a result of its large baseflow component. The sandy nature of the catchment, small percentage area of effective impervious surface, and high groundwater table resulted in the baseflow constituting more than 40% of the total storm water runoff and accounting for over 60% of the pollution load. The "first flush" effect established as a major source of pollution in other studies, was found to be of minor significance in this study area. The overall stormwater quality (excluding the noxious industrial baseflow) was found acceptable for artificial recharge within the study area, although the baseflow from the industrial sub-catchments showed the potential for being a major source of pollution in the future. The treated wastewater used for artificial recharge prior to 1987 was found to be unacceptable for recharge purposes. The treated industrial effluent should under no circumstances be recharged up-gradient of the Witzand well field. The treated domestic effluent although of a poorer quality than the resident Witzand well field groundwater could be recharged in order to boost recharge volumes and form a buffer against further intrusion by the poor quality groundwater from the Brakkefontein area. This would however only be acceptable if strict water quality control is maintained and recharge does not take place west of the present basin. The recharge basin was found to be well situated with respect to influencing the Witzand wellfield and maintaining a groundwater buffer against poor quality groundwater flow from the northeast towards the central area of the wellfield. Unfortunately the surrounding low-lying topography and sandy retaining walls have resulted in return flow and raised groundwater-levels. The raised groundwater mound does not comply with the conceptual model and together with the sandy nature of the unsaturated zone resulted in less effective purification during infiltration. The practice of letting large portions of the basin floor dry-out during summer was shown to be beneficial and the periodic cleaning of the deeper portions of the basin essential. The artificially recharged water was found to have influenced the upper portion of the aquifer well beyond the West Coast Road. The study of groundwater quality being a good method for tracing artificially recharged water. The groundwater quality has improved as a result of artificial recharge since the removal of treated wastewater from the recharge basin. The groundwater was (ii) found to be very responsive to the slightest changes in recharge basin water quality or/and quantity. Management of the recharge basin therefore had to be very much of a compromise between qualitative and quantitative approaches. The present approach of recharging all the stormwater runoff throughout the year providing the most efficient compromise under the present conditions. The study revealed that the most efficient recharge management strategy would be the recharge of treated domestic sewage effluent in the present recharge basin and all residential storm water runoff plus industrial "storm flow" stormwater runoff in a new recharge basin located northwest of the present basin. Strict water quality control must be maintained on the water discharged into the basins and an annual wet/dry cycle implemented within the basins to boost infiltration. The entire system should continue being monitored to safe guard the groundwater resource from pollution and over exploitation.
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- Date Issued: 1992
A critical analysis of school computer studies syllabuses in South Africa with reference to university computer science curricula
- Authors: Roets, Rina Annette
- Date: 1992
- Subjects: Electronic data processing -- Study and teaching (Secondary) -- South Africa Electronic data processing -- Study and teaching (Higher) -- South Africa Electronic data processing -- Curricula -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1471 , http://hdl.handle.net/10962/d1003352
- Description: This thesis analyses the existing and proposed Computer Studies syllabuses in South African schools. Thereafter it compares the South African syllabuses with syllabuses in the United Kingdom. An attempt is made to assess the objectives of the design of the new S.A. syllabus. University Computer Science syllabuses are examined in order to gauge the purported overlap between what is taught at schools and universities. Opinions are obtained on the problems which apparently exist in offering or teaching the subject at schools and universities by conducting surveys on syllabus designers and university Computer Science departments. Finally recommendations are made for future Computer Studies syllabuses.
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- Date Issued: 1992
An exploratory field study into schoolgirl pregnancies, with emphasis on the role the school can play in their prevention
- Authors: Kooverjee, Ishwar
- Date: 1992
- Subjects: Teenage pregnancy -- South Africa Sex instruction -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1537 , http://hdl.handle.net/10962/d1003419
- Description: This piece of research explores the problem of schoolgirl pregnancies and suggests a role which the school might play in their prevention. Concern over the growing number of unplanned pregnancies under the age of eighteen years at the author's school, culminated in the .present study. Experts on the subject often perceive the problem to be self-defeating to the young girls, medically contra-indicated and socially disruptive. The purpose of this investigation was to determine attitudes towards the description of the problem, to identify causative factors predisposing to pregnancy, and to obtain views on how the school can reconcile efforts to address the problem. The relevant research data was obtained through a comprehensive 64 item attitudinal and knowledge-base questionnaire which was administered to a sample of 187 subjects. The sample comprised seven different occupational groups namely, senior schoolgirls, parents of senior schoolgirls, ex-schoolgirl primigravidae, parents of ex-schoolgirl primigravidae, school teachers, members of the clergy and various health care professionals. The appendices contain full statistical tables as well as full responses to the open-ended essay based on the research questionnaire so that the reader is free to check the reasonableness of the conclusions drawn. In the final chapter the author provides a brief summary of findings, offers justification why the teaching of sex education should be a priority in public schools, and makes recommendations, in the main, for the inclusion of school-based sex education as a component of Guidance in terms of rationale and implementation. In addition, suggestions are made with regard to school policy formulation and networking with parents and other community resources. Finally, a choice of four current model programmes for sex education are proposed in an effort to improve and build upon existing programmes in the present South African curriculum. It is the author's belief that this investigation may contribute to course design and perhaps provide hypotheses for more specific studies in the future.
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- Date Issued: 1992
Illness as intersubjectivity: a sociological perspective
- Authors: Pitfield, Doreen Jennie
- Date: 1992
- Subjects: Humanism , Medical care -- Sociological aspects , Intersubjectivity , Medical ethics -- Sociological aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3329 , http://hdl.handle.net/10962/d1003117 , Humanism , Medical care -- Sociological aspects , Intersubjectivity , Medical ethics -- Sociological aspects
- Description: This thesis explores the historical roots of scientific medicine in an effort to highlight the lack of humanist intersubjectivity within the contemporary medical model. The study notes that contemporary medicine is overtly scientific and that its scientific framework is upheld and furthered by a medical model which draws legitimation from the irrefutability of what is referred to variously within this work, as its scientific "regime". It is shown that in terms of the humanist tradition people, not science, constitute the epicentre of meaningful experiential participation in the defining of human social reality. This, it is argued, implies a radically different ontology from other sociological perspectives on medicine. The thesis suggests that the contemporary medical model loses sight of the patient's ability to cognitively participate in the defining of illness, diagnosis and treatment in terms of his/her experience thereof , and argues that contemporary medicine, by advancing the idea that it alone has the correct and only answer to such problems, has led to a situation which promotes an overmedicalisation of society . The study gives an indication of the way in which this overmedicalisation has led to areas of human life becoming conceived of only in relation to medical expertise. In this respect it is noted that medicine has so successfully infiltrated the human consciousness (involving areas as diverse as childbirth, genetic engineering, transplant surgery and death), that decisions on health are invariably taken from a foundation of scientific legitimation which seems to exclude the patient as subject. It is argued that this way of making decisions reinforces the requirement for a scientific medical model which as it negates the human element insidiously amplifies its power over human life; thereby devaluing the very people it seeks to serve. The thesis suggests that in terms of a humanist reading of the Oath of Hippocrates, medical decisions can only be taken within a framework of experiential involvement which includes both medical expertise and lay understanding. It is indicated that when this happens, social reality functions in terms of a symbolic participation which fosters a commitment to equalise the conditions of human existence, and promotes a dialogical negotiatory process which is both intersubjectively and ongoingly produced.
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- Date Issued: 1992
The geology and geochemistry of the north-western portion of the Usushwana Complex, South-Eastern Transvaal
- Authors: Riganti, Angela
- Date: 1992
- Subjects: Geology -- South Africa -- Transvaal , Geochemistry -- South Africa -- Transvaal
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4958 , http://hdl.handle.net/10962/d1005570 , Geology -- South Africa -- Transvaal , Geochemistry -- South Africa -- Transvaal
- Description: The 2.9 Ga old Usushwana Complex in the Piet Retief-Amsterdam area (south-eastern Transvaal) represents an exposed segment of a layered intrusion. It has the form of a dyke-like body elongated in a northwesterly direction, and extends to an estimated depth of 3000 -5500 m. Lithologically, the Complex consists of a cumulate succession of mafic rocks capped by granitoids and has intruded along the contact between the basement and the supracrustal sequences of the Kaapvaal Craton. Differentiation of an already contaminated gabbroic magma resulted in an ordered stratigraphic sequence comprising progressively more evolved lithotypes, with at least two imperfect cyclic units developed over a stratigraphic thickness of about 700 metres (Hlelo River Section). Meso- to orthocumulate textured gabbros and quartz gabbros grade upwards into magnetite- and apatite-bearing quartz gabbros, interlayered with discontinuous magnetitite horizons. The gabbros in turn grade into hornblende-rich, granophyric granodiorites. The differentiation process is regarded as having been considerably enhanced by the assimilation of acidic material, derived by partial melting of the felsic country rocks at the roof of the magma chamber. Recrystallisation of these rocks gave rise to the microgranites that locally overlie the granodiorites. Mineralogical, textural and geochemical features indicate a relatively advanced fractionation stage, suggesting that the exposed sequence of the Usushwana Complex in the study area represents the upper portion of the intrusion. No significant mineralised occurrences were identified. However, on the basis of similarities between the Usushwana Complex and other mafic layered intrusions which host significant ore deposits, it is suggested that economic concentrations of base metal(Cu-Ni) sulphides, PGE and chromitites are likely to be developed at lower stratigraphic levels.
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- Date Issued: 1992
Fuzzy uniform spaces
- Authors: Burton, Michael Howard
- Date: 1992
- Subjects: Fuzzy sets -- Research Uniform spaces -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:5408 , http://hdl.handle.net/10962/d1005222
- Description: For a fuzzy uniform space, the notion of a Cauchy prefilter, a precompact fuzzy set, a complete fuzzy set and a bounded fuzzy set are defined in such a way that these notions are good extensions of the corresponding notions for a uniform space. A theory of fuzzy uniform spaces is developed which generalises the theory of uniform spaces.
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- Date Issued: 1992
Up Beat Issue Number 3 1992
- Authors: SACHED
- Date: 1992
- Subjects: SACHED
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/116201 , vital:34332
- Description: There are two sides to every story. You’ve surely heard that before. Well, it is true. Sometimes there are even three or four sides to a story. It depends how many people were there to tell the tale. Behind every story there is a writer. Behind a picture there is a photographer. And they are ordinary people, like you and me. They eat, sleep and play like the rest of us. Like us, they have their own ideas and feelings about the world. And these ideas show in their stories, books or photographs. So what you read is not the truth. It is someone’s version of it. Always read with an open mind. Be a detective when you read! Ask questions, think, search for clues and weigh up the facts. Then decide for yourself which story comes closest to the truth. You must have learnt about Christopher Columbus at school. Well there’s another side to that story in our article called ‘Who discovered America?’. Read it and decide what YOU think really happened. Upbeat writes a lot about young peoples’ experiences of growing up. There’s another side to being a teenager - being the mother of one. Nomasondo Hadebe openly shares with us the pain and joy of having teenage children. We don’t only learn from grown-ups or famous people (or both). Upbeat is full of stories about youth, their ideas and feelings about the world. By sharing experiences, problems and ideas we can learn from each other. So don’t miss our letters page, advice column and talkshop. Read what young people have to say. You can agree or disagree with their ideas. And when you close the magazine you may feel a little sadder, happier or angrier. But you will always be wiser
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- Date Issued: 1992
Dance and sexual politics some implications of the status of women in selected dance forms
- Authors: Poona, Sobhna Keshavelal
- Date: 1992
- Subjects: Dance -- Social aspects , Sex discrimination against women
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2145 , http://hdl.handle.net/10962/d1002377 , Dance -- Social aspects , Sex discrimination against women
- Description: This thesis explores, from a feminist perspective, some implications on the status of women in selected dance forms, and addresses the perceptions of women as 'inferior' and 'subordinate'. One of the intentions behind the work was, indeed, to challenge prevailing perceptions and create an awareness of sexism, capitalism and patriarchy, especially for the uncritical and uninformed who have become its victims. Part 1 offers an analysis of the premises upon which social, political and economic inequality are founded and consolidated, with specific reference to sexual inequality and sexual prejudice. Utilising a Marxist-feminist and semiotic approach, the machinations of the traditional mass media are linked to negative imaging of the female body in support of the sexist, patriarchal, capitalist male manipulator, who benefits from women's subordinate social status. Part 2 addresses the issue of sexual politics, and the implications for dance research and performance. The researcher offers a descriptive analysis of four specific dance forms, which serve to highlight the socialisation and educational processes that shape our perceptions and instruct our lives. A set of questionnaires was sent to fourteen autonomous dance institutions, including those attached to national performing arts councils. The thesis concludes with a summary of the results of the questionnaires that were distributed amongst female dancers, dance students and choreographers. The researcher questions our culture's preoccupation with the female body image, and posits the urgent need for an assessment of this situation, and an education which will create a better understanding and a more harmonious climate for development.
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- Date Issued: 1992
Mtsitso 3
- Authors: Venancio Mbande and his Chopi timbila xylophone group , Tracey, Andrew T N
- Date: 1992
- Subjects: Chopi (African people) -- South Africa , Folk music , Xylophone music , Rattle (Musical instrument) , Drum (Musical instrument) , Africa South Africa Rustenburg f-sa
- Language: Chopi
- Type: sound recordings , field recordings , Sound recording material
- Identifier: http://hdl.handle.net/10962/96421 , vital:31274 , International Library of African Music, Rhodes University, Grahamstown, South Africa , ATC049a-03
- Description: Traditional dance song accompanied by timbila xylophone rattles and one drum
- Full Text: false
- Date Issued: 1992
The status of the American bollworm, Heliothis armigera (Hubner) (Lepidoptera : Noctuidae), on sunflower in the central Transvaal
- Authors: Von Maltitz, Emil Friedrich
- Date: 1992
- Subjects: Helicoverpa armigera , Noctuidae -- South Africa -- Transvaal , Noctuidae , Sunflowers -- Diseases and pests
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5773 , http://hdl.handle.net/10962/d1005461 , Helicoverpa armigera , Noctuidae -- South Africa -- Transvaal , Noctuidae , Sunflowers -- Diseases and pests
- Description: Sunflower production in South Africa has increased four fold since the 1970's. This study was done to elucidate the pest status of Heliothis armigera (Hiibner) on sunflower. Field studies were undertaken at Warmbaths, Brits and Delmas during the summer seasons of 1988/89 to 1990/91. The infestations at the latter two areas were negligible throughout the study period and their statistics have not been included in this thesis. Plant development and oviposition by natural H. armigera populations were found to be correlated as, regardless of planting date, oviposition started at six to seven weeks after planting; when the flowering stage began. A peak in egg numbers was reached by the tenth week with an average for the three seasons at two eggs per plant. The eggs were laid singly on the bracts and bases of the flower buds. A peak in larval numbers was reached at the thirteenth week after planting with the average for the three seasons of 0,4 larvae per plant. The preferred feeding sites were on, between and under the bracts from where the larvae burrow into the pithy tissue of the receptacle. Only six percent of the larvae were found feeding directly on the achenes. Eggs and larvae collected were reared to determine the degree of parasitism. Overall, 19% of the eggs were parasitised; 18% by Telenomus ullyetti Nixon (Scelionidae) and one percent by Trichogrammatoidea lutea (Trichogrammatidae). Larval parasitism at Warmbaths was 23% in 1988/89, 27% in 1989/90 and 34% in 1990/91. Of the parasitised larvae, 44% succumbed to Palexorista prob. laxa (Tachinidae). The remainder were unidentified Braconidae and Ichneumonidae. Predators, such as chrysopids, were observed during the study but their effect on egg and larvae numbers was not studied in detail. A polyhedral virus occurred late in the seasons and caused mortality of the larvae. The low numbers of H. armigera on sunflower, the slight damage to the crop and the reasonably high rate of parasitism, all seem to indicate that H. armigera is not an economica1ly important pest of sunflower and that additional control methods are not justified.
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- Date Issued: 1992
Mtsitso 2
- Authors: Venancio Mbande and his Chopi timbila xylophone group , Tracey, Andrew T N
- Date: 1992
- Subjects: Chopi (African people) -- South Africa , Folk music , Xylophone music , Rattle (Musical instrument) , Drum (Musical instrument) , Africa South Africa Rustenburg f-sa
- Language: Chopi
- Type: sound recordings , field recordings , Sound recording material
- Identifier: http://hdl.handle.net/10962/96407 , vital:31273 , International Library of African Music, Rhodes University, Grahamstown, South Africa , ATC049a-02
- Description: Traditional dance song accompanied by timbila xylophone rattles and one drum
- Full Text: false
- Date Issued: 1992
Pegmatite-hosted mineral deposits of central and southern Africa : regional geological settings and preliminary exploration target considerations
- Authors: Senzani, Freeman Elther David
- Date: 1992
- Subjects: Pegmatites -- Africa, Southern , Mineralogy -- Africa, Southern , Pegmatites -- Africa, Central , Mineralogy -- Africa, Central
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5011 , http://hdl.handle.net/10962/d1006087
- Description: Review of literature shows that rocks of all ages from the Archaean to the early Phanerozoic host pegmatite-based mineralisation in the central and southern region of the African continent. The greatest concentrations occur in the Archaean and late Proterozoic orogenic belts, while early to middle Proterozoic granites do not, in general, host mineralisation. Pan-African mineralisation is present, but is not widespread. Some deposits previously considered to be of Pan-African have been shown to be of Proterozoic age. In common with occurrences of other regions, the deposits are closely associated with small, late- to post-tectonic granites. Therefore, preliminary assessment of the potential of granites as sources of pegmatite mineralisation should utilise satellite data or aerial photographs. The granites also tend to be alkaline and peraluminous. Thus, in the next stage, chemical analysis for selected major and trace elements should be conducted directly on granites if they occur as small plutons. For large granitic batholiths or terranes, preliminary stream-sediment surveys may be necessary to reduce the size of the target area. Subsequently, pegmatite zonation around suitable granites should be assessed as it allows attention to be focussed on areas likely to host the specific type of mineralisation being explored for.
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- Date Issued: 1992
An examination of the sonnets of E.E. Cummings
- Authors: Hughes, Jeremy Francis
- Date: 1992
- Subjects: Cummings, E. E. (Edward Estlin), 1894-1962 -- Criticism and interpretation Sonnets, English -- Criticism and interpretation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2244 , http://hdl.handle.net/10962/d1002287
- Description: This dissertation examines E. E. Cummings's writings in the sonnet genre and in those genres to which the sonnet is related in various ways. Its fundamental point is that, despite the surface impression of poetic iconoclasm for which Cummings has a popular reputation, in choosing to write sonnets he engages in a traditional literary practice. He does this because his purpose is always to be an artist, as defined by the Aesthetic movement which influenced him. In order to argue his embracing of a traditional artistic role, the theory of genres espoused by Alastair Fowler in his book, Kinds of Literature, is used. Chapter 1 of the thesis comprises general introductory material, both to the range of Aesthetic ideas to which Cummings subscribed, and to Fowler's theory of genres. Several key generic kinds are also described. The second chapter makes use of two of these generic models, the sonnet sequence and the silva, as a way of examining Cummings's deployment of the sonnet within the larger context of his poetry collections. It is a survey of the structure of the anthologies he compiled from Tulips & Chimneys (1922) to 95 Poems (1958). The third chapter explores the three sonnet modes which Cummings first identifies and names when compiling the manuscript of Tulips & Chimneys, and continues to use in his collections up to and including is 5 (1926). Chapter 4 shows how certain themes and concerns from these early sonnets are altered and synthesised as Cummings matures from an aesthete to a Romantic poet. Sonnets from his later books are taken to be representative of three central kinds in all of his work after is 5. Chapters 3 and 4 proceed by means of relatively close readings of individual sonnets. This practice fulfils a double role: it penetrates the apparent obscurity of the more difficult poems, and it attempts to preserve the integrity of individual poems which exemplify different generic tendencies in Cummings's work. One of Cummings's reasons for writing sonnets is that the form favours the achievement of what Wordsworth calls "a feeling of intense unity". In undertaking close readings of a few sonnets I have attempted to preserve that feeling.
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- Date Issued: 1992
Ubulunga obusisiyaca
- Date: 1960-03-03 , 2023-09-01
- Subjects: Beadwork , Necklace
- Language: English
- Type: realia , Personal adornment
- Identifier: http://hdl.handle.net/11260/8709 , vital:68086
- Description: Ubulunga obusisiyaca, A long fringed necklace made of tail hair of a cow, Tail hair taken from the tail of a cow, Worn by men and women to correct ill health or unhappy conditions, The necklace forms part of the beadwork collection that was acquired from Mrs Broster in 1992. , Purchased from Mrs Joan Broster , Forms part of: Walter Sisulu University Beadwork Collection
- Full Text: false
- Date Issued: 1960-03-03