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Regional geochemistry of the Karoo igneous province

- Duncan, Andrew R, Erlank, Anthony J, Marsh, Julian S

Authors: Duncan, Andrew R , Erlank, Anthony J , Marsh, Julian S
Date: 1984
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/134154 , vital:37079 , https://inis.iaea.org/search/searchsinglerecord.aspx?recordsFor=SingleRecordamp;RN=15001076
Description: The extrusive and intrusive rocks of the Karoo Igneous Province are dominantly of basaltic or rhyolitic (sensu lato) composition. There are, however, a considerable variety of other rock types within the province including picritic basalts, nephelinites, shoshonites, latites, andesites and dacites. This paper deals with the geochemistry of the Karoo igneous province.
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Date Issued: 1984

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Resource partitioning by top predatory teleosts in eastern Cape coastal waters (South Africa)

- Smale, Malcolm J

Authors: Smale, Malcolm J
Date: 1984
Subjects: Osteichthyes -- Nutrition Osteichthyes -- Behavior
Language: English
Type: Thesis , Doctoral , PhD
Identifier: vital:5210 , http://hdl.handle.net/10962/d1004775
Description: A detailed feeding study of eleven inshore top predatory teleosts in the eastern Cape is presented. Material collected largely from line-caught fish was augmented by spearfishing. The predators were grouped according to habitat: pelagic, soft-sediment demersal and reef species. Pelagic fish examined were Lichia amia, Pomatomus saltatrix, Seriola lalandi, Atractoscion aequidens, Katsuwonus pelamis and Thunnus albacares. Stomach content analyses revealed that their prey varied according to size and between species. In coastal areas important prey species were Sardinops ocellata, Etrumeus teres, Engraulis capensis and Loligo reynaudi. The use of fish otoliths and squid beaks allowed accurate identification of the prey and their measurement provided details of their size composition. This has provided greater insight into the distribution of prey species and their importance in food webs. The principal large predator of shallow coastal soft substrates is Argyrosomus hololepidotus, which takes pelagic and demersal prey. Important prey of small specimens are mysids, whereas fish and squid become more important in the diet of larger specimens (>300 mm). Fish prey include Sardinops ocellata, Engraulis capensis, Pomadasys olivaceum and A. hololepidotus. Loligo reynaudi is the dominant cephalopod prey. Selectivity of A. hololepidotus was investigated. Prey were compared to catches made during a small-mesh trawl survey. The absence of certain species from the diet suggests that they avoid predation, possibly by outswimming A. hololepidotus (e.g. P. saltatrix) while large Galeichthys feliceps are rare in the diet, probably because of their formidable spines. Flatfishes, P. olivaceum, juvenile G. feliceps and small A. hololepidotus appear to be preferred food items. The depth distribution of predators and prey is described, and it appears that the distribution of predators may be influenced by their prey. Top predatory teleosts inhabiting coastal reefs are Cheimerius nufar, Petrus rupestris, Polysteganus praeorbitalis and Epinephelus guaza. Diet changes with size and locality but comprises small reef fishes for most of the sparids. C. nufar takes pelagic fish and squid more than the other predators while P. rupestris and P. praeorbitalis prey on cheilodactylids, clinids and other reef associated prey predominantly. E. guaza takes principally crabs and octopods. Classification and ordination analyses of the prey taken illustrated the inter-relationships of predators, which change with increasing size. The pelagic predators are most similar to each other and A. hololepidotus is closer to this group than to reef predators. The reef predators are less similar to each other, although this group as a whole is segregated from pelagic predators. Exceptions to this are large C. nufar and large P. praeorbitalis, which fall into the pelagic predator group, as they took pelagic prey to a large extent. These results are discussed and the patterns shown are compared to other studies and current resource partitioning theory. Two food webs are provided for the coastal waters of the eastern Cape. The pelagic food web has clupeids, engraulids and L. reynaudi as principal components. The reef system is more complex and the Clinidae, Cheilodactylidae and Octopus spp. are important. The use of food webs in management and in providing a framework for testing theoretical models is shown to be important. Research needs are identified and include more detailed work on the basic biology and ecology of the top predators and their prey.
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Date Issued: 1984

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Rev John Edwards - Letter from Rev N B Kok to Dr Hewson

- Kok, N B

Authors: Kok, N B
Date: 1984
Subjects: Edwards, John (1804-1887) , Methodist Church -- Missions -- South Africa , South Africa -- Church history
Type: Text
Identifier: http://hdl.handle.net/10962/19394 , vital:22439 , MS 20 003 , This letter is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
Description: Letter from Rev. N B Kok, the Superintendent Minister, Methodist Church, Graaff-Reinet Circuit, to Dr. Hewson. The letter, dated 29 March 1884, accompanied a picture of Rev. John Edwards (available: http://hdl.handle.net/10962/19428) who was instrumental in establishing of Methodism in the area. Transcription: [Letter dated] 29 March 1984 Dear Dr. Hewson Herewith the print of our Methodist founding father in Graaff-Reinet. He made a very significant contribution to the establishment of Methodism in these parts, both spiritually and materially. The name is still being given to infants, only last year I baptised what must have been a great, great, great grandson of the venerable “John Edwards” by that name in John Edwards Hobson. Trusting that the print is up to standard required. The cost of the same is R10-. We had it done at a place call Reinet Studios here in Graaff-Reinet. Greetings [signed] Rev N.B. Kok.
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Date Issued: 1984

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Serotonin binding in vitro by releasable proteins from human blood platelets

- Heemstra, Valerie Lawrence

Authors: Heemstra, Valerie Lawrence
Date: 1984 , 2013-04-10
Subjects: Serotonin , Serotonin -- Metabolism
Language: English
Type: Thesis , Masters , MSc
Identifier: vital:3829 , http://hdl.handle.net/10962/d1007215 , Serotonin , Serotonin -- Metabolism
Description: Among the substances released from human blood platelets are serotonin and various proteins. It was hypothesized that one of these proteins binds serotonin and that serotonin might be important to the protein's function or that the protein might be important to serotonin's function. Two platelet-specific proteins, platelet factor 4 (PF4) and ß-thromboglobulin ( ßTG) were found to bind serotonin in vitro. Endogenous PF4 was isolated by serotonin-affinity chromatography and was identified by radioimmunoassay. Purified l¹²⁵ I] -PF4 and native PF4 bound to and eluted from a serotonin-affinity column similarly. Ultrafiltration of the homologous protein, (ßTG, with [¹⁴C]-serotonin demonstrated binding of about 8 moles serotonin per mole tetrameric ßTG with a dissociation con stant of about 4 x 10-8ThesisThesis⁻⁸ M. Equilibrium dialysis of PF4 with radiolabelled serotonin was attempted, but no binding constant values were obtained because serotonin apparently bound to the dialysis membrane. Since EDTA was one of the two agents that eluted PF4 from the serotonin-affinity gel, calcium binding by -PF4 was investigated by equilibrium dialysis. Evidence was obtained for positively cooperative binding of calcium ions by PF4. It is concluded that PF4 and ßTG bind serotonin in vitro, that they may also bind in vivo when platelets undergo release, and that the functions of serotonin, PF4 and ßTG may be mediated in part by serotonin-protein associations. , KMBT_363 , Adobe Acrobat 9.53 Paper Capture Plug-in
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Date Issued: 1984

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Some aspects of the teaching of English as a main language at the secondary level with special reference to the question of 'language'

- Crampton, Michael Edward

Authors: Crampton, Michael Edward
Date: 1984
Subjects: English language -- Study and teaching (Secondary)
Language: English
Type: Thesis , Masters , MEd
Identifier: vital:1873 , http://hdl.handle.net/10962/d1004926
Description: From Introduction: A training in English literature followed by a limited number of English method lectures on how to teach a prescribed Victorian novel proved inadequate in these circumstances. Moreover, several years of interaction with colleagues in staff rooms, conferences and seminars in England and South Africa failed to yield a secure sense of purpose or a confident understanding of why, when and how to teach what in the English lesson. Too many amateurs are employed to teach English. Barn dancers might as well teach ballet. Yet for all that, there grew a conviction, reinforced by the vital involvement of many inspiring colleagues, that English teaching is the mainspring of the educational process where that language is the medium of education. The hope of making some contribution to the advancement of the English teaching profession, especially for the benefit of those who look up, hoping to learn, is sufficient motivation for this work. The endeavour will be, in the first place, to review some traditional aspects of English teaching in their historical context. A description of the traditional sources upon which the profession intuitively draws might assist in explaining the existence of certain attitudes. In chapters 2-4 an analysis of current thinking, directions and practices will aim to explore some aspects of what English teaching in schools is, when and how it happens and to what end. The direction in which the profession is moving will be weighed against the relevance of school English in the further learning experiences of school leavers before conclusions and recommendations are listed. Throughout, the purpose will be to contribute insights into the practice of teaching English as a main language. The term 'main language' has been deliberately chosen. Growing numbers of South Africans might be described as English L2 'main language' speakers in the sense that though Afrikaans, Zulu, Xhosa or Gujarati might be regarded as their 'first' language , English is the language which they mainly use in the ordinary business of life, in the home, at work and at play. The situation is fluid and interactive. Many adult speakers are in the process of assuming English as a main language. Small groups at work (and increasingly in lecture halls and classrooms) might, in learning contexts use English mainly as a means of interaction but include a variety of native Ianguage speakers from Armenian to ZuIu. The concept of English as a 'main' as distinct from 'first' or 'second' language seems to be gaining fresh significance. The fact that it is no longer safe to assume that main language English speakers will all be drawn from uniform speech communities, has major implications for the teaching of the subject; implications that will rapidly become more significant with the eradication of apartheid from our society. In this study, focus will be upon the teaching of the subject at the secondary level. Within that area particular emphasis will fall upon the final three years of schooling. With the approach of the matriculation examination many schools begin to rattle their shackles, bringing 'English specialists' to bear on prescribed works and increasing the intensity of tests and mock examinations. The leisurely dalliance with projects and casual affairs with creative work associated with English in the early years, can be forgotten as attention is confined with increasing intensity on possible examination questions . Thus the opportunity to finish what has been begun is often wasted. Where added impetus and direction could be given in the final years to interest, enjoyment and abilities fostered at primary and junior secondary levels, preoccupation with an irrelevant literary erudition, with disjointed comprehension passages and spurious essay topics, can stifle natural growth. On the other hand it must be acknowledged that the impetus provided by the final examination can channel energy and produce insights that might otherwise have remained dormant. Thus, while the final three years of schooling are educationally no more important than any other phase in the twelve years schooling, they do III involve important issues within the writer's range of experience.
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Date Issued: 1984

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Somewhat strange : a study of the relationships between text and music in English song, 1588-1789

- Hutchings, Geoffrey Justin Mackay

Authors: Hutchings, Geoffrey Justin Mackay
Date: 1984
Subjects: Songs, English -- 16th century -- HIstory and criticism Songs, English -- 17th century -- HIstory and criticism
Language: English
Type: Thesis , Doctoral , PhD
Identifier: vital:2670 , http://hdl.handle.net/10962/d1006978
Description: This study is concerned with the ways in which linguistic texts combine with music to form song, essentially an art of relationship. It argues that the relationship has never been a very stable one outside folk song, and traces the development of the relationship in English song from the appearance of the first English madrigals in 1588 to the death of G F Handel in 1759. The different sorts of relationship during this period are discussed in detail, with particular attention being paid to the sort of lyric poetry that is most suitable for musical setting. The conclusion is reached that, in the art of setting a poem to music, the late Elizabethan masters, Thomas Campion and John Dowlland, were supreme in the period under discussion. After them, the aevelopment of a new system of tonality and of denser textures of accompaniment resulted in music's assumption of a more and more Dominant role in the relationship to the neglect and detriment of poetic text.
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Date Issued: 1984

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South African farm wages and working conditions: with special reference to the Albany district, 1957 to 1977

- Antrobus, Geoffrey Gordon

Authors: Antrobus, Geoffrey Gordon
Date: 1984
Subjects: Agricultural wages -- South Africa -- Eastern Cape , Agricultural laborers -- South Africa -- Eastern Cape
Language: English
Type: Thesis , Doctoral , PhD
Identifier: vital:1028 , http://hdl.handle.net/10962/d1003722
Description: The focus of the study is the wages and working conditions of farm labourers in commercial agriculture. After an outline examination of the broad trends in employment and wages in the agricultural industry as a whole, the emphasis falls on a micro-study of employment practices in the Eastern Cape magisterial district of Albany. The results of a survey of farmers was used to determine the level of wages, including payments in kind, the value of housing, cropping and grazing rights. It was found that cash wages made up only 25% of the total remuneration of R684 per annum, while purchased and farm produced rations made up a further 40% of the total. A survey conducted in the Albany district two decades previously was used to compare the real earnings in 1957 and 1977. Although real cash wages and rations increased over the twenty year period the restriction of cropping and grazing rights had the effect of keeping real earnings static. In the light of the improvement of other working conditions, such as the reduction in working hours, however, it is concluded that some increase in real wages did occur . It is evident that there are no clear-cut recipes for successful farm labour management and no unequivocal statements should be made about the most visible element, namely cash wages.
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Date Issued: 1984

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Sport Diver

- De Villiers, André R W

Authors: De Villiers, André R W
Date: 1984
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/460741 , vital:76032 , https://journals.co.za/doi/epdf/10.10520/AJA00284459_445
Description: New Coin is one of South Africa's most established and influential poetry journals. It publishes poetry, and poetry-related reviews, commentary and interviews. New Coin places a particular emphasis on evolving forms and experimental use of the English language in poetry in the South African context. In this sense it has traced the most exciting trends and currents in contemporary poetry in South Africa for a decade of more. The journal is published twice a year in June and December by the Institute for the Study of English in Africa (ISEA), Rhodes University.
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Date Issued: 1984

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Strontium isotope characterization of Karoo volcanic rocks

- Bristow, J W, Allsopp, H L, Erlank, Anthony J, Marsh, Julian S, Armstrong, R A

Authors: Bristow, J W , Allsopp, H L , Erlank, Anthony J , Marsh, Julian S , Armstrong, R A
Date: 1984
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/134176 , vital:37081 , https://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetailamp;idt=6453595
Description: Karoo volcanics of both mafic and felsic composition cover large areas of southern Africa, and are characterized by considerable ranges in their initial 87Sr/86Sr (i.e. Ro) ratios. Mafic volcanics from the eastern and western continental margins show the greatest range in Ro ratios, i.e. Lebombo-Nuanetsi area: 0.7035-0.7134 and Etendeka: 0.7030-0.7135 respectively. In the Central Karoo area the mafic rocks show a smaller spread of ratios: 0.7046-0.7094.
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Date Issued: 1984

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The "Civilised Labour Policy" and the private sector : the operation of the South African Wage Act, 1925-1937

- Phillips, Ian Munro

Authors: Phillips, Ian Munro
Date: 1984
Subjects: Wages -- Government policy -- South Africa. Labour policy -- South Africa Discrimination in employment -- South Africa Wages -- Law and legislation -- South Africa
Language: English
Type: Thesis , Doctoral , PhD
Identifier: vital:2594 , http://hdl.handle.net/10962/d1007354
Description: The early history of South African industrial development has been approached from essentially two angles. One body of thought has concentrated on the adverse effect colour bars have had on the development of South Africa. It is argued that racial discrimination in industry originated from the racial prejudice of white workers and from state intervention in the economy. Opposed to that view is the interpretation that the colour bar originated out of the specific character and subsequent development of South African capitalism. This study approaches the debates and arguments through an analysis of the Wage Act of 1925. The industrial relations system which operates in South Africa has its origins in the legislation of the 1920s. It is based on the Industrial Conciliation Act of 1924 and the Wage Act of 1925. Very few systematic analyses of the Wage Act have been produced hitherto. Most commentators have focussed on single aspects of the Act, but very few have attempted an examination of the operation of the Wage Board which was established by the Act. The Wage Board was instituted as an element to promote the civilised labour policy in the private sector. Whereas the Industrial Conciliation Act operated to protect organised labour, the Wage Act concentrated on unorganised trades and sections of trades. Although empowered to investigate conditions in the mining industry, the Wage Board was never used to regulate wages in that industry under the Wage Act due to opposition from the industry. It was concerned solely with secondary industrial and manufacturing establishments because agriculture and domestic service were excluded from the Wage Act. The Wage Act was based on the principal of compulsory regulation. Determinations in terms of the Board's recommendations were binding on employees and employers alike. Complex procedures hampered the activity of the Board until 1930 when the Act was amended and simplified. The Board faced a great deal of opposition from manufacturers in its early years. But a cautious approach and the gradual implementation of determinations ensured that employers opposition soon changed to support when it became clear the Board was not an arbitrary one. The Board had to take a number of strict considerations into account. It could not recommend wages if its recommendation would affect the particular trade concerned adversely. It concerned itself with the promotion of efficiency in business, production costs, consumerism , the wasteful employment of labour, the length of the working day and the productivity of employees. As such it was used as a means to assist the necessary rationalisation and reorganisation of South African industry. It could not recommend wages without the Minister's express instructions if all the employees covered by a reference could not receive a civilised wage . Civilised wages were classified as wages at which employees could enjoy white standards of living. This clause effectively introduced a colour bar into wage determinations. It operated before 1930 to buttress Industrial Council Agreements to prevent the displacement of whites by Africans at lower rates. The Wage Board also considered investigations from unskilled, African workers. The Board was not permitted by law to discriminate against people of colour. Apart from the potential colour bar of wage regulation in general in South Africa, the Board was instructed in 1930 to refrain from issuing recommendations for African workers. Regulations were also altered to exclude Africans. The Wage Act declined in importance after the Great Depression as white workers were drawn closer to the wider-reaching Industrial Conciliation Act. The need to regulate African wages and to control African labour became more evident during the period of economic expansion in the 1930s. The Act was replaced in 1937 and the restrictions formerly placed on Africans were removed. The workforce had finally been separated with the provision of different industrial relations appartuses." "...Every industrial and commercial centre in England now possesses a working class divided into two hostile camps, English proletarians and Irish proletarians. The ordinary English worker hates the Irish worker as a competitor who lowers his standard of life. In relation to the Irish worker he feels himself a member of the ruling nation and so turns himself into a tool of the aristocrats and capitalists of his country against Ireland, thus strengthening their domination over himself. He cherishes religious, social, and national prejudices against the Irish worker. His attitude towards him is much the same as that of the 'poor whites' to the 'niggers' in the former slave states of the USA. The Irishman pays him back with interest in his own money. He sees in the English worker at once the accomplice and the stupid tool of the English rule in Ireland. This antagonism is artificially kept alive and intensified by the press, the pulpit, the comic papers, in short, by all the means at the disposal of the ruling classes. This antagonism is the secret of the impotence of the English working class, despite its organisation. It is the secret by which the capitalist class maintains its power. And that class is fully aware of it." Marx to Siegfried Meyer and August Vogt April 9 1870 Marx and Engels Ireland and the Irish Question.
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Date Issued: 1984

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