The initial years (ca. 1528-1565) of Claude le Jeune : Huguent and musical humanist
- Authors: Potgieter, Johann Hendrik Loedolff Smuts
- Date: 1989
- Subjects: Le Jeune, Claude, d. 1600 Music -- France -- 16th century -- History and criticism
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2673 , http://hdl.handle.net/10962/d1007392
- Description: Claude Le Jeune (born at Valenciennes , ca. 1528; died at Paris, 1600) was a towering figure in French Renaissance music. In spite of this, few biographical details have survived the turmoils of his time , which was marked primarily by the Wars of Religion, the last years of the reign of the Valois, and the struggle of Henry IV for the crown of France. In order, therefore, to attain a more complete picture of Le Jeune's life and work, the general historical and spiritual background, circumstantial evidence, is considered more implicating much intensely than usual. The two dominating beacons in Le Jeune's life are his allegiance to the Reformed Faith , involving close connections to leading Huguenot figures, and his inclination towards Humanism, confirmed by his association, from 1570 onwards, with the Academie de Poesie et de Musique of Jean-Antoine De Baïf. The present study is concerned with the initial years of Claude Le Jeune, covering the thirty- seven years of his life from 1528 (the assumed year of birth) intil 1565. In terms of publications, this period includes his "youthful" works : four early chansons from 1552, the Dix Pseaumes with a dialogue for seven voices , Mais qui es-tu,of 1564, and a single motet à 3, Nigra sum sed formosa, published in 1565. The background of his northern homeland is screened with particular attention to the involvement of the members of the Le Jeune family in the religious affairs of the time. Also the general cultural and musical milieu of the Netherlands is investigated within this and Le Jeune's first published works are considered biographical framework. These works still bear the stodginess and gaucheness of an apprentice. The probability of a sojourn in Italy is explored with positive findings. This visit most likely brought Le Jeune within the circle of the ageing Willaert at Venice, Major focus is placed upon the Dix Pseaumes, the first comprehensive collection to appear entirely under Le Jeunes ' s own name and dominating the initial period of his creative life. Detailed analyses reveal the hand of a now asserted composer. well-versed in technical matters and in possession of a fine perception for both the tenets of Calvinism and the aspirations of musical Humanism . As far as the latter is concerned. pertinent attention is given to its roots in the rhetorical and philosophical traditions. and how Le Jeune accommodated issues which sprouted from these and occupied the theorists of his time. Musical text expression holds. since the Dix Pseaumes. a central place in Le Jeune's works in which he maintains a fresh and subtle approach steering clear of the dogmatism of some contemporary theorists. Using various musical devices (modes, chiavette, melody, rhythm, harmony, texture, and even structure) to serve text expression. Le Jeune' s parlance gradually develops a currency in its own right. often expressing the meaning or implication of a text more comprehensively than can be attained by means of a linguistic medium. Appropriate to this particular trait of development in language. recognition is given Le Jeune's musical language. Included into the discussion are concordances of works by other composers where these exist as well as references to the relevant musical topography. A concluding summary of the moulding forces in the initial years of Claude Le Jeune's life as well as the gradual formulation of his distinct musical language concludes this study which can be regarded as an introduction to a more comprehensive programme of research on the life, times and works of Claude Le Jeune, Huguenot and Musical Humanist. A general bibliography is included while the folling appendices are included. 1 . A Bibliography of the works of Claude Le Jeune (all printed editions from 1552-1775). complete with descriptions . text incipits. sources. and class nubers; 2 . some relevant documents; 3. the literary texts of the works discussed; and 4. the "youthful" works. all of these (except the chanson spirituelle. Mais qui es- tu,as yet not republished . Various portraits. maps and other relevant illustrations are intended to enhance the presentation.
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- Date Issued: 1989
The life and times of Ethel Tawse Jollie : a case study of the transference and adaptation of British social and political ideas of the Edwardian era to a colonial society
- Authors: Lowry, Daniel William
- Date: 1989
- Subjects: Jollie, Ethel Tawse, 1876-1950 Zimbabwe -- History -- 1890-1965
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:2525 , http://hdl.handle.net/10962/d1001854
- Description: This is an appraisal of the career of Ethel Tawse Jollie (1876-1950), the first woman parliamentarian in Southern Rhodesia, and the British Empire overseas, prolific writer and leading intellectual of her political generation who played a key role in the achievement of responsible government in Southern Rhodesia in 1923. As the founder and principal organiser of the Responsible Government Association she imported from Britain a singular political philosophy which made a lasting impression on Rhodesia's political character and social identity. She was an influential figure in British imperialist circles and in the women's suffrage controversy. No other Rhodesian politician had achieved such prominence in the metropole, or possessed such a thoroughly formed, comprehensive ideology, and the propaganda skills necessary to give it effect. The study traces the formation of her ideas within the intellectual milieu of pre-1914 Britain and - through her - its subsequent adaptation in Rhodesia; how, through her marriage to Archibald Colquhoun - explorer, writer and Cecil Rhodes's first Administrator of Mashonaland - she became steeped in the ideology of the Edwardian Radical Right - that reaction to imperial decline denoted by the slogan 'National Efficiency'. By 1915. when she arrived in Rhodesia, she had come to believe that by 1915, when she arrived in Rhodesia, she had come to believe that the salvation of the Empire lay in its 'patriotic' periphery where it was possible to create new societies on Radical Right principles. Both in and out of parliament she gave to Rhodesian public policy and identity a distinct Radical Right hue, which she further enhanced by her involvement in various extra parliamentary pressure groups. It is a life and times study and considerable use is made of contemporary ballads and novels in the belief that immersion in the atmosphere of the period is particularly useful in an intellectual biography of this kind. Comparisons are also made with other British peripheries notably Ulster, Canada and New Zealand. The study challenges the traditional view of Rhodesia as a neo-Victorian intellectual backwater; seeing it rather as a society which continued to import selectively ideas from elsewhere in the Empire. It should interest Commonwealth and - because of its central character - women's historians.
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- Date Issued: 1989
The metabolism of abscisic acid in higher plant tissues
- Authors: Cowan, Ashton Keith
- Date: 1989
- Subjects: Plants -- Metabolism Plant cells and tissues Abscisic acid -- Metabolism
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4176 , http://hdl.handle.net/10962/d1002024
- Description: The biosynthesis of ABA from R-[2-¹⁴C]-MVA was demonstrated in Persea americana cv. Fuerte mesocarp and in mature seeds of Hordeum vulgare cv. Dyan and cv. Himalaya. Radioactivity from R-[2-¹⁴-C]-MVA was also incorporated into the 1',4'-trans ABA diol in Persea americana mesocarp and a possible role for this metabolite as a precursor of ABA in plants is discussed. The biosynthesis of ABA from MVA could not be demonstrated in either turgid and waterstressed Hordeum vulgare cv. Dyan, Pisum sativum cv. Black-eyed Susan and Phaseolus vulgaris cv. Top-crop or in immature seeds of Pisum sativum and Phaseolus vulgaris. (R,S,)-[2-¹⁴C]-ABA was catabolised to PA, DPA and aqueous conjugates in leaves and mature seeds of Hordeum vulgare cv. Dyan, seedlings and immature seeds of Pisum sativum and Phaseolus vulgaris and in mesocarp from ripening fruits of Persea americana. PA and DPA were identified by either microchemical methods and/or capillary GC-MS. 7'-Hydroxy ABA was characterised as a novel ABA catabolite in light-grown and etiolated leaves of Hordeum vulgare by capillary GC-MS. Circular dichroism analysis revealed that it was derived predominantly from the (R)-enantiomer of ABA. This catabolite was absent in similar studies using the dicotyledons Pisum sativum and Phaseolus vulgaris. Refeeding studies with [¹⁴C]-PA, [C]-DPA and [¹⁴C]-7'-hydroxy ABA were used to confirm the metabolic interrelationship between ABA and its catabolites in both vegetative and non-vegetative tissues from monocotyledonous and dicotyledonous species. The methyl ester of (R,S,)-ABA was hydrolysed efficiently by light-grown leaves of Hordeum vulgare. Older, vegetative tissues catabolised (R,S,)-ABA more efficiently than their younger counterparts. In contrast, small, immature seeds of Pisum sativum catabolised (R,S,)-ABA more effectively than larger, immature seeds of this species. Light did not appear to influence ABA biosynthesis but markedly enhanced ABA catabolism. Light stimulated the overall rate of ABA catabolism in both vegetative and non-vegetative tissue. Water stress reduced ABA catabolism in Hordeum vulgare leaves but had little effect on this process in Phaseolus vulgaris seedlings. Pretreatment of tissues with (R,S,)-ABA retarded the catabolism of (R,S,)-[2-¹⁴C]-ABA, negating ABA-induced conversion to PA. Cycloheximide inhibited ABA biosynthesis and catabolism but did not affect ABA conjugation. Chloramphenicol and lincomycin had little or no effect on ABA metabolism suggesting that the enzymes involved were labile and cytoplasmic in origin. Ancymidol and cycocel inhibited ABA biosynthesis while AM01618 stimulated this process. The cytokinins, benzyladenine, kinetin, isopentenyl adenine and zeatin also inhibited ABA biosynthesis. These results are discussed in relation to the possible involvement of carotenoids in ABA biosynthesis. AM01618, ancymidol andcycocel did not significantly influence the conversion of ABA to PA and DPA while cytokinins appeared to enhance this process only in vegetative tissue. The information derived from these studies was then used in attempts to develop a cell-free system from higher plants capable of metabolising ABA. A cell-free system prepared from imbibed Hordeum vulgare cv. Dyan embryos biosynthesized and catabolised ABA. This is the first demonstration of a cell-free system from non-vegetative tissue capable of metabolising ABA and could prove useful for elucidating its biosynthetic route. This cell-free system generated the terpenyl pyrophosphates IPP, FPP and GGPP from MVA. ABA was produced from both MVA and IPP in the presence of 0₂ and NADPH. The biosynthesis of ABA was stimulated by the addition of the squalene 2,3-oxide cyclase and kaurene synthetase inhibitor, AM01618 and a "cold-pool trap" of (R,S,)-ABA. Ancymidol, cycocel and cytokinins reduced incorporation of label from MVA into ABA. Similar cell-free preparations, in the absence of AM01618, converted (R,S,)-[2-¹⁴-C]-ABA into PA, 7'-hydroxy ABA and water-soluble conjugates. Although the methyl ester of (R,S,)-ABA was efficiently hydrolysed in this cell-free system no DPA was generated. The possible involvement of mixed function oxidase activity and soluble oxidases is discussed in relation to ABA metabolism. While cell-free preparations from Persea americana cv. Fuerte mesocarp and immature seeds of Pisum sativum and Phaseolus vulgaris were unable to synthesize ABA from MVA, these tissue homogenates converted ABA into more polar acidic products. PA and DPA were identified as products of ABA catabolism in extracts from immature seeds of Phaseolus vulgaris and the l',4'-cis diol of ABA in extracts from Pisum sativum immature seeds
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- Date Issued: 1989
The thermodynamics of binary liquid mixtures of compounds containing multiple bonds.
- Authors: Baxter, Rodney Charles
- Date: 1989
- Subjects: Solution (Chemistry)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4531 , http://hdl.handle.net/10962/d1016079
- Description: Excess thermodynamic properties have been determined for several binary liquid mixtures with the aim of testing various thermodynamic theories and postulates. Excess molar enthalpies, HEm, have been determined using an LKB flow microcalorimeter and excess molar volumes, VEm, have been determined using an Anton Paar vibrating tube densitometer. The activity coefficients at infinite dilution ƴ∞₁₃, have been determined using an atmospheric pressure gas-liquid chromatograph. The excess molar enthalpies and the excess molar volumes have been measured at 298.15 K for systems involving the bicyclic compounds decahydronaphthalene (decalin), 1,2,3,4-tetrahydronaphthalene (tetralin), bicyclohexyl, or cyclohexylbenzene mixed with 1- hexene, 1-hexyne, 1-heptene, 1-heptyne, cyclohexene, 1,3-cyclohexadiene, 1,4- cyclohexadiene, or benzene. These excess properties have also been measured for systems where the bicyclic compound has been replaced with benzene, cyclohexane or n-hexane. The results show defmite trends related to the size, shape, and the degree of unsaturation of the component molecules. The Flory theory has been used to predict excess molar enthalpies and excess molar volumes for {(a bicyclic compound or benzene or cyclohexane or n-hexane) +(an n-alkane or a 1-alkene or a 1-alkyne or a cycloalkane or cyclohexene or a cycloalkadiene or benzene)}. The one parameter equations offer reasonably good correlations between the predicted and the experimental results. More insight into the origins of the contnbutions to the excess thermodynamic properties for these systems has been gained by considering the approximate equations of Patterson and co-workers, which separate the interactional and the free volume contributions to the excess molar enthalpy and the excess molar volume. The one parameter equations have adequately rationalized a good deal of the observed behaviour for HEm and VEm. The theory of Liebermann and co-workers, which does not employ any adjustable parameters, has not been as successful at predicting the excess thermodynamic properties for the above systems. The activity coefficients at infinite dilution have been measured at 278.15 K, 288.15 K and 298.15 K for n-bexane, 1-bexene, 1-hexyne, n-heptane, 1-heptene, 1-heptyne, cyclohexane, cyclohexene, 1,3-cyclohexadiene, 1,4-cyclohexadiene, and benzene, in decalin, tetralin, bicyclohexyl, and cyclohexylbenzene. Solvent losses from the column have been accounted for by an extrapolation procedure. The activity coefficient results together with the HEm and VEm values have been used to calculate the partial molar excess thermodynamic properties of mixing at infinite dilution. The partial molar excess properties at infinite dilution for decalin mixtures are similar to those for bicyclohexyl mixtures. There is also a similarity between the properties of the tetralin mixtures and the cyclohexylbenzene mixtures. The cycloalkadienes, benzene and the 1-alkynes exhibit a strong dissociation effect on being mixed with the saturated solvents, decalin and bicyclohexyl, but associate strongly with tetralin and with cyclohexylbenzene. The Flory theory bas been used to predict activity coefficients at infinite dilution from the experimentally determined HEm results for { (n-bexane or 1-hexene or 1-hexyne or naheptane or 1-heptene or 1-beptyne) + (a bicyclic compound)}. The theory is much better at predicting values for mixtures where both components are either saturated molecules or are unsaturated molecules than for {saturated + unsaturated} mixtures.
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- Date Issued: 1989
Towards an existential phenomenological interpretation of C.G. Jung's analytical psychology
- Authors: Brooke, Roger, 1953-
- Date: 1989
- Subjects: Jung, C G (Carl Gustav), 1875-1961 Existential phenomenology Phenomenology Psychoanalysis Psychology
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3208 , http://hdl.handle.net/10962/d1011983
- Description: The central aim of this study was to interpret the psychology of C.G . Jung in the light of existential phenomenology, thereby to lay the foundations for an integrated phenomenological analytical psychology. It was recognised that although Jung introduced a poetic understanding of psychological life he tended to adhere theoretically to a Cartesian and natural scientific epistemology and ontology, in which the knower is separated from the known, and psychological life is encapsulated inside the human subject. Thus the main task, which defined generally the study's scope and limitations, was to undercut the lingering Cartesianism in Jung's thought, thereby to recover the world in which one lives as intrinsically and authentically psychological, and one's psychological life as irreducibly world-related. The ontological guidelines for this endeavour were taken primarily from Heidegger and Merleau-Ponty, but it was consistently argued that this hermeneutic movement towards an existential understanding is given within Jung's work itself. Thus: Jung's method is primarily hermeneutic-phenomenological; the psyche is not "mind" or an inner realm more or less linked to the body, but is the embodied life-world, and Jung's descriptions of it - of its autonomy, spatiality and bodiliness, for instance - achieve ontological clarity when it is articulated as Dasein; the self as the totality of the psyche is interpretated in terms of Dasein, and individuation involves differentiation, personalisation and appropriation within existence itself; the complexes, archetypally grounded, are the vital densities of incarnate life, ambiguously conscious and unconscious, known and lived; the archetypes are the fundamental necessities of psychological life, autonomous imaginal structures within which both body and world are founded. Imaginal autonomy is revealed ontically as the metaphorical reality of things, but since imaginal autonomy has no ground thought about psychological life is ultimately poetic. Where relevant, recent theoretical developments in analytical psychology were discussed, particularly the Developmental and Archetypal movements. A clinical study was presented to illustrate some of the main themes of the thesis. In conclusion, the main themes of an integrated phenomenological analytical psychology were outlined, and the central contributions of analytical psychology and existential phenomenology were highlighted.
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- Date Issued: 1989
Vegetation ecology of the Camdebo and Sneeuberg regions of the Karoo biome, South Africa
- Authors: Palmer, Anthony Riordan
- Date: 1989
- Subjects: Plants -- South Africa -- Great Karoo Great Karoo (South Africa)
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4173 , http://hdl.handle.net/10962/d1002021
- Description: An hierarchical syntaxonomic classification of the vegetation of the Camdebo and Sneeuberg regions of the karoo biome is presented as a second approximation after the earlier work by Acocks (1953). Details on the geomorphology, geology, climate, and early vegetation history of the area are given. The vegetation of the study area was stratified with the aid of Landsat imagery and the community classification was generated using two-way indicator species analysis (Twins pan) which produced ordered phytosociological tables. Tabular comparisons and final sorting of tables are according to the methods and techniques of the ZiirichMontpellier school of phytosociology. Syntaxonomic ranks are defined as five classes, nine orders and seventeen communities. The classes are Grasslands, Karoo Shrublands, Karoo Dwarf Shrublands, Sub-tropical Transitional Thicket, and Riparian Thicket. The distribution of syntaxa corresponds with the steep precipitation gradient experienced in the study area. These vegetation concepts are applied to the description of the flora of the Karoo Nature Reserve and an analysis of the total flora of the reserve is provided. The communities of the pediments, which contain the highest number of endemics, are poorly conserved. I test the validity of the vegetation classification by interpreting the results of an analysis of soils within the hypothesized vegetation units. There is a gradient of increasing Na, silt and pH levels from the Shrublands and Grasslands to the Succulent and Grassy Dwarf Shrublands of the pediments. A qualitative model of the vegetation history during the glacial-interglacial sequence in the Graaff-Reinet region of the eastern Cape is presented. Using a descriptive approach, the distribution patterns of 68 taxa, which are differential species for Karoo Shrublands, Succulent Thicket and Karoo Dwarf Shrublands, are investigated relative to major southern African biomes. The results indicate that a large proportion of the differential species in the phytosociological classification show affinity with Grassland and Savanna Biomes. Three species groups encountered in the Dwarf Shrublands show affinity with the Nama-Karoo biome. The differential species of the Succulent Thicket have a predominantly subtropical distribution. Using an historical approach, the palaeoenvironment of the region during the past 20 000 years is discussed briefly. On the basis of the descriptive and historical perspectives, a qualitative model of vegetation history is presented. The Succulent Thicket may have become established on edaphically favourable sites in the ameliorating conditions of the warmer, wetter Holocene subsequent to the Last Glacial Maximum. The Dwarf Shrubland and Succulent Dwarf Shrubland are depauperate in relation to ccmmunities in other southern African biomes, but the relatively large number of endemics suggests a long history in the region. Their differential species groups occur under arid conditions, accompanied by soils with high base and fertility status. The Dwarf Shrublands may have been more extensive during the drier glacial times on those sites currently occupied by Shrubland. The Shrublands display the expected affInity with the Grassland and Savanna Biomes. The small number of endemics suggest that these communities may have occupied the region in the period since the Last Glacial Maximum. Species with Succulent Karoo Biome affInity are poorly represented. The reliability of using Landsat products to detect and map the vegetation of the region is assessed. The manual classification of Landsat standard products provides a poor reflection of the vegetation of the arid, sparsely-vegetated bottomlands and pediments. The products provide good representation of the boundaries of thicket vegetation, but this uni-temporal approach does not distinguish between floristically different thicket communities. After analyzing digital Landsat data, I suggest that the multi-spectral scanner detects the boundaries of broad soil pedons and geological formations in areas of low vegetative cover. I describe and map the vegetation categories of the region after manual interpretation of six Landsat scenes. This is an effIcient, cost-effective method of mapping vegetation in extensive regions. The mapping units do not reflect the syntaxonomic classification, representing rather an integration of physiographic, pedological, geological and floristic information. With the view to improving the classification of these units, I develop a qualitative model of the natural resources of the region using an expert system
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- Date Issued: 1989
Zinc inhibition of cell division : its relevance to cancer cells and possible mechanism of action
- Authors: Skeef, Noel Samuel
- Date: 1989
- Subjects: Cell division , Cancer cells -- Growth -- Regulation , Zinc in the body , Zinc -- Physiological effect , Cancer -- Research
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4144 , http://hdl.handle.net/10962/d1016266
- Description: A description of two techniques used extensively in this study namely cell counting with a "cell counting plate" and argentation TLC for the separation of ω -6 -fatty acids is given. Zn supplementation into GM of two malignant (BL-6 and Hep- 350) and a non-malignant (LLC-MK) cell line/s resulted in an increased uptake of Zn by the cells and progressively suppressed proliferation of particularly the malignant cells. Zn chelation by EDTA suppressed in vitro proliferation of all 3 cell line, this effect being more pronounced in the malignant cells. A dietary Zn deficiency resulted in alopecia in mice and both a dietary Zn deficiency and Zn excess reduced growth of BL-6 tumours implanted subcutaneously in mice. Zn supplementation into GM progressively increased the uptake of [1-¹⁴C]-LA by BL-6 and LLC-MK cells but had a very slight though irregular effect on this parameter in the Hep- 350 cells. Zn supplementation also stimulated desaturase activity in the BL-6 cells. These results suggested that there are select cell lines whose Δ⁶-desaturase activity responds positively to Zn supplementation (e.g. the BL-6 cells). Delta-6-desaturase activity was also assayed in microsome preparations from different tissues. No enzyme activity was detected in the microsomes prepared from the BL-6 tumours. There was no significant effect with the addition of Zn or EDTA, on Δ⁶-desaturase activity of the regenerating liver microsomes. In the resting liver microsomes this enzyme activity was reduced only when EDTA and Zn were added together and when EDTA was added to the reaction medium as well as to the microsome preparations 2 hr before the enzyme activity assay was initiated. The results of these experiments suggested that the Δ⁶-desaturase enzyme in the microsome preparations may have had an adequate amount of Zn with further additions having no stimulatory effect on the enzyme. Two independent mechanisms of control of cell proliferation by low and high Zn are suggested to operate.
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- Date Issued: 1989