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Catholic Prayer

- Lumko Church Congregation, Composer not specified, Dargie, Dave

Cognitive structuring of residential environments in black Grahamstown: a political view

- Taylor, Beverley Mary King

  • Authors: Taylor, Beverley Mary King
  • Date: 1983
  • Subjects: Black people -- Housing -- South Africa -- Grahamstown -- Political aspects
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:4809 , http://hdl.handle.net/10962/d1004546 , Black people -- Housing -- South Africa -- Grahamstown -- Political aspects
  • Description: This research project investigates black cognitive structuring of their residential environment in the Grahamstown location. A clinical psychological method (repertory grid method) was used to elicit the construct systems of residents. The associative construct theory formulated by Kelly (1955) was used in interpreting the data set from the liberal perspective. The radical perspective demonstrated an alternative interpretation. A focus of the study centres around the possible implications of this type of research for planning action. The results showed that the repertory grid did appear to accurately reflect people's construing systems regarding their circumstances and behaviour. However, Kelly's (1955) Personal Construct Theory proved inadequate as a theory of explanation as to why people construed in the manner they did. To enhance this explanation, the marxist approach to the theory of knowledge was investigated.
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  • Date Issued: 1983

Comparative bioavailability of some locally manufactured betamethasone valerate containing preparations

- Meyer, Eric, Haigh, John M, Kanfer, Isadore

  • Authors: Meyer, Eric , Haigh, John M , Kanfer, Isadore
  • Date: 1983
  • Language: English
  • Type: Article
  • Identifier: vital:6399 , http://hdl.handle.net/10962/d1006326
  • Description: The bioavailabilities of three locally manufactured proprietary betamethasone- 17-valerate containing creams and ointments were compared by measuring their abilities to cause blanching of human skin after topical application. The preparations studied were Betnovate Cream and Ointment, Celestoderm-V Cream and Ointment and Persivate Cream and Ointment. Celestoderm-V cream displayed a significantly superior blanching activity over both Betnovate and Persivate creams in' the occluded mode, whereas Persivate cream displayed a significantly superior blanching activity over both Betnovate and Celestoderm-V creams in the unoccluded mode. Persivate ointment was found to produce a significantly superior blanching activity over Betnovate and Celestoderm-V ointments in both the occluded and unoccluded modes of application.
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  • Date Issued: 1983

Conductivity profiles for a horizontally uniform earth

- Murrell, Hugh Crozier

  • Authors: Murrell, Hugh Crozier
  • Date: 1983
  • Subjects: Coen, Shimon -- Criticism and interpretation Wang-Ho Yu, Michael -- Criticism and interpretation Algorithms
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5395 , http://hdl.handle.net/10962/d1001984
  • Description: An investigation is made into the mathematics behind the noniterative inversion algorithm of Shimon Coen and Michael Wang-Ho Yu [1981]. The algorithm determines the conductivity profile of a horizontally uniform earth from surface measurements of apparent resistivity with a Schlumberger array. The algorithm is checked by performing the inversion on both artifical and raw field data
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  • Date Issued: 1983

Continuous-flow dynamic dialysis and its application to collagen-ligand interactions

- Sparrow, Neil Arthur

  • Authors: Sparrow, Neil Arthur
  • Date: 1983
  • Subjects: Collagen Ligands (Biochemistry) Ligand binding (Biochemistry) Protein-protein interactions Tannins
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:4297 , http://hdl.handle.net/10962/d1004617
  • Description: Studies undertaken to investigate the binding of low molecular mass analogues of polyphenolic vegetable tannins to collagen have prompted the development of a new method to investigate protein-ligand interactions. This method, the continuous-flow dynamic dialysis method (CFDD), differs from conventional dialysis procedures used for protein-ligand binding studies. In this method, the ligand concentration in the diffusate is monitored automatically at successive closely spaced time intervals while being continuously eluted from the dialysis cell. The primary data obtained by this method consists of a series of spectrophotometric absorbance measurements representing the ligand concentration in the sink compartment of a dialysis cell. This primary data is recorded by means of a data logging device onto a punched paper tape for subsequent computer processing. Two original methods are presented for analysing the primary data to extract the protein-ligand binding isotherm. The first of these is a direct analysis which relies on Fick's first law of diffusion. In this method it is necessary to establish, by means of a control experiment, a value for the ligand permeation constant. This is used in a subsequent analysis to establish a relationship between the measured rate of diffusion of the ligand from a protein-ligand mixture and the concentration of unbound ligand which is in equilibrium with the protein-ligand complex. The protein-ligand binding isotherm is obtained from parametric equations which give the quantity of ligand bound to the protein and the concentration of unbound ligand in the sample compartment as functions of time. The second method, which is more general, utilizes the same primary data but is based on establishing a system transfer function to characterise the dialysis and eluting processes. This analysis depends on the linearity of the system and utilizes numerical laplace transforms of the primary data sets obtained from control and protein-ligand dialyses. Laplace transforms are used to effect a deconvolution of the transfer function from the primary data and yield the concentration of ligand in equilibrium with the protein-ligand complex. This procedure yields, simultaneously, both the total ligand concentration and the concentration of unbound ligand in the protein compartment of the dialysis cell. These quantities are used to establish the binding isotherm for the protein ligand system. Numerical inversion of the laplace transforms in this analysis is effected by their reduction to Fourier series. The experimental reliability of the continuous-flow dynamic dialysis method, and validity of the two analytical methods used to derive a binding isotherm from dialysis data are evaluated from studies of the binding of phenol red to bovine serum albumin (BSA) at 15⁰, 20⁰ and 25⁰ C, as well as from simulated binding curves generated by the numerical solution of the differential equations used to describe the dialysis and elution process in terms of a two-site Scatchard binding model. The method is used to investigate the binding to collagen of a series of low molecular mass phenolic compounds which can be isolated from Wattle and Quebracho vegetable tannin extracts. These compounds can be considered as monomeric precursor analogues of the polymeric vegetable tannins. The binding of these ligands to collagen is shown to be characterised by high capacity, low affinity binding in which the uptake of ligand by the protein increases linearly with increasing ligand concentration. Collagen exhibits no indication of site saturation for these ligands over the experimentally accessible concentration ranges investigated.
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  • Date Issued: 1983

Corporate financial reporting: history, development and future directions

- Prinsloo, K S (Keith Stephen)

Creed

- Lumko Church Congregation, Composer not specified, Dargie, Dave

Declaration of independence

- Berold, Robert

  • Authors: Berold, Robert
  • Date: 1983
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/460218 , vital:75907 , https://journals.co.za/doi/epdf/10.10520/AJA00284459_394
  • 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: 1983

Determination of phenylpropanolamine in serum and urine by high performance liquid chromatography

- Dowse, Roslind, Haigh, John M, Kanfer, Isadore

  • Authors: Dowse, Roslind , Haigh, John M , Kanfer, Isadore
  • Date: 1983
  • Language: English
  • Type: Article
  • Identifier: vital:6361 , http://hdl.handle.net/10962/d1006056
  • Description: A high-performance liquid chromatographic analysis of phenylpropanolamine in human serum and urine without prior derivatization is presented. Using direct UV detection the method is sufficiently sensitive to detect 25 ng of drug/ml of serum or urine; the coefficients of variation at 25 ng/ml and 500 ng/ml were 5.16 and 2.12, respectively, in serum. The method involves serum and urine extraction at a basic pH with chloroform, a single back-extraction, and chromatography on a reverse-phase column. Serum and urine data following administration of a single 150-mg sustained-release tablet of phenylpropanolamine hydrochloride in 6 healthy volunteers demonstrates the suitability of the analytical method.
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  • Date Issued: 1983

Discussion about the song Nondel' ekhaya

- Dywili, Nofinish, Dargie, Dave

  • Authors: Dywili, Nofinish , Dargie, Dave
  • Date: 1983
  • Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa City not specified sa
  • Language: isiXhosa
  • Type: sound recordings , field recordings , sound recording-musical
  • Identifier: http://hdl.handle.net/10962/325307 , vital:60879 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC293a-10
  • Description: Song performed by Nofinish Dywili to be used for assistance in analysing songs from Dave Dargie's tape no. 43
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  • Date Issued: 1983

Discussion on Xhosa terms in music

- Dargie, Dave, Dywili, Nofinishi

  • Authors: Dargie, Dave , Dywili, Nofinishi
  • Date: 1983
  • Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Lumko sa
  • Language: IsiXhosa
  • Type: sound recordings , field recordings , sound recording-musical
  • Identifier: http://hdl.handle.net/10962/352812 , vital:64167 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC072-03
  • Description: Dave Dargie discussion on Xhosa terms in music with Nofinishi Dywili
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  • Date Issued: 1983

Dumo lika Judah

- Performer not specified, Manci, Paul, Father, Dargie, Dave

Economic geology of sulphide nickel deposits

- Harrison, P A

  • Authors: Harrison, P A
  • Date: 1983
  • Subjects: Nickel sulfide , Ore deposits , Geology, Economic , Silicate minerals , Geochemistry
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5022 , http://hdl.handle.net/10962/d1006349
  • Description: From Chapter 1: It has been a long standing belief that many nickel sulphide ores are derivatives of magmatic processes in ultramafic and mafic rocks, and that they segregate from these magmas as immiscible sulphide droplets which are then concentrated into an orebody by gravitational settling either during intrusion or extrusion, or during the early stages of crystallization of the magma (Naldrett, 1981). Some geologists however, have suggested alternative mechanisms to explain the concentration of nickeliferous sulphides in the mafic and ultramafic hosts. These include hydrothermal replacement (Fleet, 1977), exhalative volcanic processes (Lusk, 1976), or major metamorphic upgrading of low grade, initially magmatic deposits (Barrett et al., 1977). It is not the purpose of this study to verify or disprove these hypotheses, but in so far as the initial concentration of sulphides in most deposits is concerned, these effects are relatively unimportant (Naldrett, 1981). The nickel sulphide ores associated with these mafic and ultramafic host rocks, invariably consist of nickeliferous pyrrhotite as the dominant phase, together with lesser, but variable, amounts of magnetite, pentlandite, chalcopyrite, cubanite, and platinum group elements (Reynolds, 1982).
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  • Date Issued: 1983

Economic sanctions and South Africa

- Cooper, John Howard

  • Authors: Cooper, John Howard
  • Date: 1983
  • Subjects: Economic sanctions -- South Africa
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:1045 , http://hdl.handle.net/10962/d1006137 , Economic sanctions -- South Africa
  • Description: From Introduction: There are few more emotive and contentious contemporary issues of enduring nature than the subject of economic sanctions and South Africa. The controversy surrounding this issue has implications for the structure of international social, political and economic order. The threads of the debate are woven into the historical fabric of the past two decades, during which the acrimony of arguments both for and against sanctions on South Africa has increased. Indeed, for each argument in the debate can be found a counter-argument and "lies, damned lies and statistics" abound. The complex and widespread nature of the question has elevated a practical issue into the realm of theoretical analysis. This thesis is neither purely descriptive nor purely theoretical. It has essentially two focal points, firstly, an attempt at a systematic and reasoned investigation of the many claims and counter-claims, designed to put these arguments into a broad economic framework. There is generally a greater volume of pro-sanctions literature than anti-sanctions literature, some of which is freely available in South Africa, while some is restricted and some not available at all. However, this partial lack of accessibility would seem to pose no material problem of omission: as much of the literature is repetitive, the unavailable material is usually adequately "represented" by material which is available. Also a great part of the literature contains little or no economic analysis since it focuses more on political issues. In this respect the thesis tries to represent the main points of the broad arguments concerned rather than individual nuances and personal viewpoints. It is concerned with sanctions of an economic nature rather than wider sanctions that may affect South African citizens more generally, for example, sport and diplomatic boycotts, bans and restrictions on international travel, etc.
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  • Date Issued: 1983

Effect of anticonvulsant agents on pineal gland indole metabolism

- Morton, Dougal John

  • Authors: Morton, Dougal John
  • Date: 1983
  • Subjects: Pineal gland -- Metabolism Anticonvulsants
  • Language: English
  • Type: Thesis , Doctoral , PhD
  • Identifier: vital:3844 , http://hdl.handle.net/10962/d1009518
  • Description: Preface: The general indications that the pineal gland might be involved in homeostasis, and more specifically the evidence suggesting a role in amelioration of seizure states warranted further investigation . No reports had examined a possible link between anticonvulsant drug administration and pineal gland function, and few enabled any type of presumption to be made as to possible effects. This study was an attempt to evaluate in which ways anticonvulsant drugs might alter pineal gland indole metabolism, with a view to increasing understanding of the role of the pineal in modulation of epileptic discharges. In order to make the study as meaningful as possible extensive preliminary investigations were necessary. Pharmacokinetic determinations gave an indication of tissue concentrations of the drugs, which could then be related to observed effects. As far as possible, where existing information was lacking, the catalytic behaviour of the various enzymes was characterised in order to explain any observed effects at a molecular level. An attempt was also made to characterise the regulatory mechanisms controlling indole metabolism, again in order to define the pharmacological effects exerted by the drugs used. The complexity of the system made it impossible to suggest a single uniform regulatory hypothesis, although some significant observations were made. Finally, the studies involving the anticonvulsant drugs were conducted on intact animals, isolated organs and individual enzymes in an attempt to determine whether the observed effects were occuring at a molecular, local or central level.
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  • Date Issued: 1983

Evolution of the continental lithosphere: evidence from volcanics and xenoliths in southern Africa

- Hawkesworth, C J, Erlank, Anthony J, Marsh, Julian S, Menzies, M A, Van Calsteren, Peter

  • Authors: Hawkesworth, C J , Erlank, Anthony J , Marsh, Julian S , Menzies, M A , Van Calsteren, Peter
  • Date: 1983
  • Language: English
  • Type: text , conference paper
  • Identifier: http://hdl.handle.net/10962/133548 , vital:36989 , https://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetailamp;idt=9641566
  • Description: The geology of southern Africa offers a rare opportunity to study the evolution of a segment of continental lithosphere because its rocks range in age from 3.6 Ga to recent, and over the last 200 Ma both the upper mantle and the crust have been sampled by Karoo and Tertiary volcanism and as xenoliths in kimberlite pipes.
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  • Date Issued: 1983

Geochemical exploration in arid and semi-arid environments

- Van Berkel, Ferdinand

  • Authors: Van Berkel, Ferdinand
  • Date: 1983 , 2013-04-02
  • Subjects: Geochemical prospecting , Arid regions
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4920 , http://hdl.handle.net/10962/d1004389 , Geochemical prospecting , Arid regions
  • Description: Anomalous element distributions within the regolith result from chemical adjustments of the earth's surface to prevailing climatic conditions. Because of the lack of moisture in the arid environment, chemical equilibrium related to paleoclimates is largely maintained. Mechanical or clastic dispersion dominates arid weathering and hence the exploration approach is largely dictated by the degree of preservation of the paleoregolith. Arid environment geochemists thus have to contend with surface materials ranging from laterite and calcrete in areas where the imprint of aridity is minimal, to more conventional sample media such as bedrock, stream sediment and lithic soils in actively dissecting areas. Extraction techniques are designed specifically to isolate clastic dispersion trains. Thick mantles of aeolian and water-borne overburden characterise desert lowlands and are a challenge to the exploration geochemist. Techniques showing the most promise in these areas include groundwater geochemistry, vapour geochemistry, surface microlayer geochemistry, geobotany and biogeochemistry which attempt to isolate gaseous and weak hydromorphic, ore-related trace-element dispersions. Termite mound sampling yields convincing results and appears to be an under-utilised geochemical approach. , KMBT_363 , Adobe Acrobat 9.53 Paper Capture Plug-in
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  • Date Issued: 1983

Geology and mine planning

- Maturana-Bascope, M

  • Authors: Maturana-Bascope, M
  • Date: 1983
  • Subjects: Geology , Mining geology , Geology, Economics
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5027 , http://hdl.handle.net/10962/d1006896
  • Description: From introduction: This dissertation aims to review the main aspects involved in mine planning, in order to provide the geologists with the main criteria to obtain a preliminary estimate of the minability of an in situ orebody, and to make the geologists aware of the information they can contribute to the planning engineers. Furthermore, an understanding of the basic principles behind mine planning may help the exploration geologist to select more realistic targets of exploration.
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  • Date Issued: 1983

Geology of the central and southern domains of the Koras Group, northern Cape Province

- Sanderson-Damstra, Christopher Gerald

  • Authors: Sanderson-Damstra, Christopher Gerald
  • Date: 1983 , 2013-04-17
  • Subjects: Geology -- South Africa -- Cape of Good Hope
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5017 , http://hdl.handle.net/10962/d1006203 , Geology -- South Africa -- Cape of Good Hope
  • Description: The Central and Southern Domains of the Koras Group, situated on the Doornberg Lineament, are the structurally preserved remnants of a once more widespread late-syntectonic cover sequence. Detailed examination of the field relationships, lithology and petrography together with new geochemical data (30 analyses) has resulted in the proposal of a new geological succession consisting mainly of two cycles of bimodal basaltic-rhyolitic volcanics with interbedded, immature conglomerates and lithic greywackes. These two cycles, named the Boomrivier and Leeudraai Formations, are overlain by the immature, polymictic orthoconglomerates and red arkosic sandstones of the Kalkpunt Formation. The first volcanic cycle commenced with the Lambrechtsdrif basaltic andesites and was followed, after a short hiatus, by the Swartkopsleegte rhyodacites. The second cycle comprises the Rouxville basalts and basaltic andesites and the Swartkop and Kenilworth rhyolites. Field evidence suggests that eruption of the rhyolitic and basaltic volcanics in the second cycle was contemporaneous. Geochemically, the volcanics can be classified as an "average-K" to high-K, tholeiitic, subalkaline association which exhibits general similarities to other Southern African bimodal associations e.g., the tholeiitic lavas of the Wilgenhoutsdrif Group. The Koras Group is petrologically similar to the Sinclair Sequence which is presently considered to be its coeval equivalent, but the dominantly calc-alkaline character of the Sinclair rocks distinguishes them from the dominantly tholeiitic Koras lavas. In a short literature review, the four main hypotheses for the petrogenesis of bimodal associations: liquid immiscibility, crystal fractionation, two-stage partial melting and separate magma sources, are described and the most feasible explanation for the origin of the Koras lavas is thought to be a "separate magma source" hypothesis in which two cycles of mantle-derived basalts and crustal-derived rhyolites were produced in a zone of high heat flow and erupted in an area of crustal weakness. The middle- or late-Proterozoic Koras Group was formed during unstable tectonic conditions, in a depositional setting that was probably controlled by late folding of the underlying pre-Koras sequences as well as the major strike-slip movement and subordinate dip-slip faulting in the Doornberg Lineament.
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  • Date Issued: 1983

Hallelujah

- Dargie, Dave, Dave Dargie and the Marimba players, Composer not specified

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