Xhosa narrative : an analysis of the production and linguistic properties of discourse with particular reference to "iintsomi" texts
- Authors: Gough, David Huw
- Date: 1986
- Subjects: Folk literature, Xhosa Xhosa language -- Spoken Xhosa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3564 , http://hdl.handle.net/10962/d1002086
- Description: Although the areas I intend to investigate are rather diverse, what unites them is a concern for the ancient and fascinating question of the relationship between language and thought. Assumptions concerning the latter are surely latent as the basis for any inquiry into language. One of my general purposes is to give some overt orientation to this problem which is all too often simply glossed over. More particularly, I am also concerned with shaping a new approach to Bantu linguistic inquiry in terms of an emphasis on discourse analysis. In the context of the burgeoning of discourse analysis internationally, the field has been seriously neglected in Southern Africa. Studies of discourse are, we believe, vital to advancing our knowledge of inter-ethnic communication and understanding, an area that cannot be ignored in Southern Africa. In more general terms, I hope that this thesis represents a challenge to linguistic inquiry in ways that we have already outlined above. Most importantly, is that while it appears that most South African linguists are satisfied with adopting a rigid monotheoretical approach, I differ, advocating a multitheoretical perspective. This, I believe, allows a greater and more holistic view not only of the 'data' in question but also in terms of the general nature of inquiry, as well as the 'world' it attempts to describe. The body of this thesis is divided into two sections which reflect the two central concerns we have outlined above. Section A, divided into three chapters, is chiefly concerned with the conceptual basis of Xhosa narrative and its linguistic manifestation. In this section we shall find cause to query and to redefine traditional approaches to the linguistic categories manifest in Xhosa narrative. In section B, also divided into three chapters, we shall be concerned with the development of a theory of narrative production with specific reference to intsomi production. In this section we include an in depth criticism of previous approaches to this problem before developing and applying our own theory. There are two appendices attached to this thesis. The first presents certain tables and figures relevant to chapter 4. while the second includes the narrative texts from which we draw our examples. (Introduction, p. 21-22)
- Full Text:
- Date Issued: 1986
- Authors: Gough, David Huw
- Date: 1986
- Subjects: Folk literature, Xhosa Xhosa language -- Spoken Xhosa
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3564 , http://hdl.handle.net/10962/d1002086
- Description: Although the areas I intend to investigate are rather diverse, what unites them is a concern for the ancient and fascinating question of the relationship between language and thought. Assumptions concerning the latter are surely latent as the basis for any inquiry into language. One of my general purposes is to give some overt orientation to this problem which is all too often simply glossed over. More particularly, I am also concerned with shaping a new approach to Bantu linguistic inquiry in terms of an emphasis on discourse analysis. In the context of the burgeoning of discourse analysis internationally, the field has been seriously neglected in Southern Africa. Studies of discourse are, we believe, vital to advancing our knowledge of inter-ethnic communication and understanding, an area that cannot be ignored in Southern Africa. In more general terms, I hope that this thesis represents a challenge to linguistic inquiry in ways that we have already outlined above. Most importantly, is that while it appears that most South African linguists are satisfied with adopting a rigid monotheoretical approach, I differ, advocating a multitheoretical perspective. This, I believe, allows a greater and more holistic view not only of the 'data' in question but also in terms of the general nature of inquiry, as well as the 'world' it attempts to describe. The body of this thesis is divided into two sections which reflect the two central concerns we have outlined above. Section A, divided into three chapters, is chiefly concerned with the conceptual basis of Xhosa narrative and its linguistic manifestation. In this section we shall find cause to query and to redefine traditional approaches to the linguistic categories manifest in Xhosa narrative. In section B, also divided into three chapters, we shall be concerned with the development of a theory of narrative production with specific reference to intsomi production. In this section we include an in depth criticism of previous approaches to this problem before developing and applying our own theory. There are two appendices attached to this thesis. The first presents certain tables and figures relevant to chapter 4. while the second includes the narrative texts from which we draw our examples. (Introduction, p. 21-22)
- Full Text:
- Date Issued: 1986
Ntsikani's Great Hymn
- Group of Local Women, Composer Not Specified, Dargie, Dave
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323291 , vital:60654 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-04
- Description: Traditional Xhosa religious song, accompanied by the Uhadi bow and clapping
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323291 , vital:60654 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-04
- Description: Traditional Xhosa religious song, accompanied by the Uhadi bow and clapping
- Full Text: false
- Date Issued: 1986
Interview
- Group of Local Women, Dargie, Dave, Composer Not Specified
- Authors: Group of Local Women , Dargie, Dave , Composer Not Specified
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323282 , vital:60653 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-03
- Description: Interview with performers
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Dargie, Dave , Composer Not Specified
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323282 , vital:60653 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-03
- Description: Interview with performers
- Full Text: false
- Date Issued: 1986
Title Not Specified
- Group of Local Women, Composer Not Specified, Dargie, Dave
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Sikhwankqeni sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323273 , vital:60652 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-02
- Description: Traditional Xhosa song with Uhadi bow accompaniment
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Sikhwankqeni sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323273 , vital:60652 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-02
- Description: Traditional Xhosa song with Uhadi bow accompaniment
- Full Text: false
- Date Issued: 1986
Title Not Specified
- Group of Local Women, Composer Not Specified, Dargie, Dave
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323263 , vital:60651 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-01
- Description: Traditional Xhosa song, accompanied by the Uhadi bow
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323263 , vital:60651 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-01
- Description: Traditional Xhosa song, accompanied by the Uhadi bow
- Full Text: false
- Date Issued: 1986
Interview
- Group of Local Women, Dargie, Dave, Composer Not Specified
- Authors: Group of Local Women , Dargie, Dave , Composer Not Specified
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323345 , vital:60660 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-10
- Description: Interview with performer as to the connection of Uhadi bow in Diviner's work
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Dargie, Dave , Composer Not Specified
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323345 , vital:60660 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-10
- Description: Interview with performer as to the connection of Uhadi bow in Diviner's work
- Full Text: false
- Date Issued: 1986
Title Not Specified
- Group of Local Women, Composer Not Specified, Dargie, Dave
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323314 , vital:60657 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-07
- Description: Traditional Xhosa song with clapping accompaniment
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323314 , vital:60657 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-07
- Description: Traditional Xhosa song with clapping accompaniment
- Full Text: false
- Date Issued: 1986
Title Not Specified
- Group of Local Women, Composer Not Specified, Dargie, Dave
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323241 , vital:60650 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD164B-10
- Description: Sikhwankqeni locals sing traditional Xhosa song with Uhadi accompaniment
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323241 , vital:60650 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD164B-10
- Description: Sikhwankqeni locals sing traditional Xhosa song with Uhadi accompaniment
- Full Text: false
- Date Issued: 1986
Interview
- Group of Local Women, Dargie, Dave, Composer Not Specified
- Authors: Group of Local Women , Dargie, Dave , Composer Not Specified
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323309 , vital:60656 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-06
- Description: Interview with performer
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Dargie, Dave , Composer Not Specified
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323309 , vital:60656 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-06
- Description: Interview with performer
- Full Text: false
- Date Issued: 1986
Title Not Specified
- Group of Local Women, Composer Not Specified, Dargie, Dave
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323336 , vital:60659 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-09
- Description: Traditional Xhosa song, accompanied by the Uhadi bow and clapping
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323336 , vital:60659 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-09
- Description: Traditional Xhosa song, accompanied by the Uhadi bow and clapping
- Full Text: false
- Date Issued: 1986
Ingoma
- Group of Local Women, Composer Not Specified, Dargie, Dave
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323296 , vital:60655 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-05
- Description: Traditional Xhosa song, accompanied by the Uhadi bow and clapping
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323296 , vital:60655 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-05
- Description: Traditional Xhosa song, accompanied by the Uhadi bow and clapping
- Full Text: false
- Date Issued: 1986
Title Not Specified
- Group of Local Women, Composer Not Specified, Dargie, Dave
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323319 , vital:60658 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-08
- Description: Traditional Xhosa song with clapping accompaniment
- Full Text: false
- Date Issued: 1986
- Authors: Group of Local Women , Composer Not Specified , Dargie, Dave
- Date: 1986
- Subjects: Folk music , Field recordings , Africa, Sub-Saharan , Africa South Africa Mackay's Nek sa
- Language: isiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/323319 , vital:60658 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DD165A-08
- Description: Traditional Xhosa song with clapping accompaniment
- Full Text: false
- Date Issued: 1986
Reply to correspondence: P.M. Gaylarde (1986) The human skin blanching assay—use and abuse
- Haigh, John M, Kanfer, Isadore, Meyer, Eric, Smith, Eric W
- Authors: Haigh, John M , Kanfer, Isadore , Meyer, Eric , Smith, Eric W
- Date: 1986
- Language: English
- Type: Article
- Identifier: vital:6376 , http://hdl.handle.net/10962/d1006293
- Description: Finally, we would like to assure Dr Gaylarde that we do not advocate the use of the human skin blanching assay. There are several other in vivo methods for determining corticosteroid activity which will provide equally meaningful results. What we are advocating is that if the human skin blanching assay is going to be used, then it should be used properly.
- Full Text:
- Date Issued: 1986
- Authors: Haigh, John M , Kanfer, Isadore , Meyer, Eric , Smith, Eric W
- Date: 1986
- Language: English
- Type: Article
- Identifier: vital:6376 , http://hdl.handle.net/10962/d1006293
- Description: Finally, we would like to assure Dr Gaylarde that we do not advocate the use of the human skin blanching assay. There are several other in vivo methods for determining corticosteroid activity which will provide equally meaningful results. What we are advocating is that if the human skin blanching assay is going to be used, then it should be used properly.
- Full Text:
- Date Issued: 1986
Plankton, fish and man - a triplet in limnology : inaugural speech delivered at Rhodes University
- Authors: Hart, Robert Clynton
- Date: 1986
- Subjects: Limnology , Limnology -- South Africa
- Language: English
- Type: Text
- Identifier: vital:635 , http://hdl.handle.net/10962/d1020704 , ISBN 0868101346
- Description: Inaugural speech delivered at Rhodes University , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1986
- Authors: Hart, Robert Clynton
- Date: 1986
- Subjects: Limnology , Limnology -- South Africa
- Language: English
- Type: Text
- Identifier: vital:635 , http://hdl.handle.net/10962/d1020704 , ISBN 0868101346
- Description: Inaugural speech delivered at Rhodes University , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1986
A study of the marine algal epiphyte, Placophora binderi (J. Agardh) J.Agardh (Ceramiales : Rhodophycophyta)
- Authors: Hartley, Diana Hendy
- Date: 1986
- Subjects: Epiphytes , Marine algae , Codium , Ceramiales
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4177 , http://hdl.handle.net/10962/d1002025 , Epiphytes , Marine algae , Codium , Ceramiales
- Description: Placophora binderi can be described as an "obligate epiphyte" as it does not respond well to any culture conditions and is found growing only on other algae in the natural environment. This habit may have arisen as a response to the best available substrate in a harsh environment (Harlin 1971; Moss 1982). Any nutrient transfer which may occur between Placophora binderi and its basiphyte, usually various species of Codium, is probably by diffusion as rhizoids do not penetrate the basiphyte cells but simply lie between the Codium utricles providing better anchorage. A triphasic life history exists with isomorphic gametophyte, carposporophyte and tetrasporophyte generations. The male and female gametophytes are dioecious. This study confirms Scagel's (1953) observations for the development of the juvenile, mature and reproductive thallus. The juvenile develops as an erect polysiphonous thallus which produces a prostrate lobe as an adventitious branch from the basal segments. This prostrate lobe develops into the dorsiventrally flattened mature thallus. Reproductive structures are produced on erect branches which are initiated at the mature thallus margins. The gametophyte develops on evanescent trichoblasts produced on erect reproductive branches while the tetra sporophyte develops within these erect branches. The female gametophyte has a four-celled carpogonial branch with an auxiliary cell forming after fertilisation from the supporting cell. At the electron microscope level several vesicle types were seen in the reproductive organs. In the male, spermatial vesicles are produced which probably aid in release of the spermatia (Kugrens 1980). These are also visible under the light microscope. In carposporogenesis and tetrasporogenesis, three vesicle types are produced. Striated vesicles appear for a short while during the early stages and probably function as protein stores. Fibrillar vesicles are large and visible under the light microscope. These probably act as carbohydrate storage organelles (Triemer and Vasconcelos 1979; Kugrens and West 1973c; Tripodi 1971). Cored vesicles appear late in sporogenesis and probably aid in adhesion once the spores have settled (Chamberlain and Evans 1973; Wetherbee 1978). Carpospores follow the "serial release" type pattern observed in Polysiphonia (Boney 1978). Tetraspores are released singly via a rupture in the tetrasporangial wall as in Ceramium rubrum (Chamberlain and Evans 1973). Both carpospores and tetraspores germinate in the typical bi-polar Ceramium-type pattern described by Dixon (1973)
- Full Text:
- Date Issued: 1986
- Authors: Hartley, Diana Hendy
- Date: 1986
- Subjects: Epiphytes , Marine algae , Codium , Ceramiales
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4177 , http://hdl.handle.net/10962/d1002025 , Epiphytes , Marine algae , Codium , Ceramiales
- Description: Placophora binderi can be described as an "obligate epiphyte" as it does not respond well to any culture conditions and is found growing only on other algae in the natural environment. This habit may have arisen as a response to the best available substrate in a harsh environment (Harlin 1971; Moss 1982). Any nutrient transfer which may occur between Placophora binderi and its basiphyte, usually various species of Codium, is probably by diffusion as rhizoids do not penetrate the basiphyte cells but simply lie between the Codium utricles providing better anchorage. A triphasic life history exists with isomorphic gametophyte, carposporophyte and tetrasporophyte generations. The male and female gametophytes are dioecious. This study confirms Scagel's (1953) observations for the development of the juvenile, mature and reproductive thallus. The juvenile develops as an erect polysiphonous thallus which produces a prostrate lobe as an adventitious branch from the basal segments. This prostrate lobe develops into the dorsiventrally flattened mature thallus. Reproductive structures are produced on erect branches which are initiated at the mature thallus margins. The gametophyte develops on evanescent trichoblasts produced on erect reproductive branches while the tetra sporophyte develops within these erect branches. The female gametophyte has a four-celled carpogonial branch with an auxiliary cell forming after fertilisation from the supporting cell. At the electron microscope level several vesicle types were seen in the reproductive organs. In the male, spermatial vesicles are produced which probably aid in release of the spermatia (Kugrens 1980). These are also visible under the light microscope. In carposporogenesis and tetrasporogenesis, three vesicle types are produced. Striated vesicles appear for a short while during the early stages and probably function as protein stores. Fibrillar vesicles are large and visible under the light microscope. These probably act as carbohydrate storage organelles (Triemer and Vasconcelos 1979; Kugrens and West 1973c; Tripodi 1971). Cored vesicles appear late in sporogenesis and probably aid in adhesion once the spores have settled (Chamberlain and Evans 1973; Wetherbee 1978). Carpospores follow the "serial release" type pattern observed in Polysiphonia (Boney 1978). Tetraspores are released singly via a rupture in the tetrasporangial wall as in Ceramium rubrum (Chamberlain and Evans 1973). Both carpospores and tetraspores germinate in the typical bi-polar Ceramium-type pattern described by Dixon (1973)
- Full Text:
- Date Issued: 1986
A study of petrol and diesel fuel blends with special reference to their thermodynamic propeties and phase equilibria
- Authors: Hayward, Caroline
- Date: 1986
- Subjects: Gasoline , Diesel fuels , Thermodynamics , Liquid-liquid equilibrium , Alcohol as fuel
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4065 , http://hdl.handle.net/10962/d1004902 , Gasoline , Diesel fuels , Thermodynamics , Liquid-liquid equilibrium , Alcohol as fuel
- Description: The ternary phase behaviour of the n-heptane-l-propanol-water system was studied and compared with the theoretical prediction based on the UNIQUAC model for non-electrolyte solutions. The results showed that this model adequately approximated experimental studies. The excess enthalpies and excess volumes for several binary mixtures were determined. The excess enthalpies were measured using a LKB flow microcalorimeter and the excess -volumes determined using a PAAR densitometer. The study showed that no significant enthalpy or volume changes occurred when petrol/n-heptane were mixed with alcohols . Ternary phase diagrams, including tie lines have been determined for a number of petrol-alcohol-water systems (including the Sasol blend of alcohols). The tie line results show that the concentration of water in the water-rich layer is strongly dependent on the type of alcohol used. The Sasol alcohol blended with petrol resulted in a high water concentration in the water-rich layer which forms on phase separation. This is believed to contribute significantly to the corrosion problems experienced by motorists using the Sasol blended fuel on the Witwatersrand. The effect of temperature on several of these blends was included in the study. Diesel-alcohol blends and the co-solvent properties of ethyl acetate investigated. Ethyl acetate ensures miscibility at low concentrations for diesel-ethanol blends. Octyl nitrate and two cetane improvers from AECI were assessed in terms of their ability to restore cetane rating of blended diesel fuel to that of pure diesel fuel. The results indicated that all three samples were successful in this application. , KMBT_363
- Full Text:
- Date Issued: 1986
- Authors: Hayward, Caroline
- Date: 1986
- Subjects: Gasoline , Diesel fuels , Thermodynamics , Liquid-liquid equilibrium , Alcohol as fuel
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4065 , http://hdl.handle.net/10962/d1004902 , Gasoline , Diesel fuels , Thermodynamics , Liquid-liquid equilibrium , Alcohol as fuel
- Description: The ternary phase behaviour of the n-heptane-l-propanol-water system was studied and compared with the theoretical prediction based on the UNIQUAC model for non-electrolyte solutions. The results showed that this model adequately approximated experimental studies. The excess enthalpies and excess volumes for several binary mixtures were determined. The excess enthalpies were measured using a LKB flow microcalorimeter and the excess -volumes determined using a PAAR densitometer. The study showed that no significant enthalpy or volume changes occurred when petrol/n-heptane were mixed with alcohols . Ternary phase diagrams, including tie lines have been determined for a number of petrol-alcohol-water systems (including the Sasol blend of alcohols). The tie line results show that the concentration of water in the water-rich layer is strongly dependent on the type of alcohol used. The Sasol alcohol blended with petrol resulted in a high water concentration in the water-rich layer which forms on phase separation. This is believed to contribute significantly to the corrosion problems experienced by motorists using the Sasol blended fuel on the Witwatersrand. The effect of temperature on several of these blends was included in the study. Diesel-alcohol blends and the co-solvent properties of ethyl acetate investigated. Ethyl acetate ensures miscibility at low concentrations for diesel-ethanol blends. Octyl nitrate and two cetane improvers from AECI were assessed in terms of their ability to restore cetane rating of blended diesel fuel to that of pure diesel fuel. The results indicated that all three samples were successful in this application. , KMBT_363
- Full Text:
- Date Issued: 1986
An investigation into the present system of orientation for pupils entering high school under the jurisdiction of the Cape Education Department, leading to an orientation programme
- Heath, John Lionel Potgieter
- Authors: Heath, John Lionel Potgieter
- Date: 1986
- Subjects: Education, Secondary -- South Africa Educational change -- South Africa Education and state -- South Africa Educational law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1870 , http://hdl.handle.net/10962/d1004769
- Full Text:
- Date Issued: 1986
- Authors: Heath, John Lionel Potgieter
- Date: 1986
- Subjects: Education, Secondary -- South Africa Educational change -- South Africa Education and state -- South Africa Educational law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1870 , http://hdl.handle.net/10962/d1004769
- Full Text:
- Date Issued: 1986
Dinopercidae, a new family for the Percoid marine fish genera Dinoperca Boulenger and Centrarchops Fowler (Pisces: Perciformes)
- Heemstra, Phillip C, Hecht, Thomas
- Authors: Heemstra, Phillip C , Hecht, Thomas
- Date: 1986
- Subjects: Perciformes -- Classification
- Language: English
- Type: Text
- Identifier: vital:15010 , http://hdl.handle.net/10962/d1019743 , ISSN 0073-4381 , Ichthyological Bulletin J.L.B. Smith Institute of Ichthyology; No. 51
- Description: The Genus Dinoperca was erected by Boulenger (1895) for the Northern Indian Ocean species Hapalogenys petersi Day and assigned to the Family Serranidae. Boulenger (1903) described a second species, D. queketti, from South Africa. Most subsequent authors have accepted the placement of Dinoperca in the Serranidae, but Johnson (1983) removed it from the Serranidae to the taxonomic limbo of “Incertae sedis’’. Centrarchops Fowler (1923), with a single West African species, was originally assigned to the Serranidae and has been treated by subsequent authors in the Serranidae. The osteology, myology and the otolith (sagitta) of D. petersi reveal no characters that would relate Dinoperca to any particular family of percoids. Furthermore, the presence or absence of certain characters preclude Dinoperca and Centrarchops from the Family Serranidae, and the superfamilies Haemuloidea, Lutjanoidea and Sparoidea. Two features appear to be uniquely derived characters (synapomorphies) justifying a separate family for Dinoperca and Centrarchops: (1) Frontal bones bearing a high median crest that articulates posteriorly with the supraoccipital crest and is cleft dorsally by a narrow median sulcus extending ventrally to the roof of the brain cavity. (2) Large swim-bladder with three pairs of large intrinsic muscles. , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1986
- Authors: Heemstra, Phillip C , Hecht, Thomas
- Date: 1986
- Subjects: Perciformes -- Classification
- Language: English
- Type: Text
- Identifier: vital:15010 , http://hdl.handle.net/10962/d1019743 , ISSN 0073-4381 , Ichthyological Bulletin J.L.B. Smith Institute of Ichthyology; No. 51
- Description: The Genus Dinoperca was erected by Boulenger (1895) for the Northern Indian Ocean species Hapalogenys petersi Day and assigned to the Family Serranidae. Boulenger (1903) described a second species, D. queketti, from South Africa. Most subsequent authors have accepted the placement of Dinoperca in the Serranidae, but Johnson (1983) removed it from the Serranidae to the taxonomic limbo of “Incertae sedis’’. Centrarchops Fowler (1923), with a single West African species, was originally assigned to the Serranidae and has been treated by subsequent authors in the Serranidae. The osteology, myology and the otolith (sagitta) of D. petersi reveal no characters that would relate Dinoperca to any particular family of percoids. Furthermore, the presence or absence of certain characters preclude Dinoperca and Centrarchops from the Family Serranidae, and the superfamilies Haemuloidea, Lutjanoidea and Sparoidea. Two features appear to be uniquely derived characters (synapomorphies) justifying a separate family for Dinoperca and Centrarchops: (1) Frontal bones bearing a high median crest that articulates posteriorly with the supraoccipital crest and is cleft dorsally by a narrow median sulcus extending ventrally to the roof of the brain cavity. (2) Large swim-bladder with three pairs of large intrinsic muscles. , Rhodes University Libraries (Digitisation)
- Full Text:
- Date Issued: 1986
Vice-Chancellor's message for 1986 primer
- Authors: Henderson, Derek Scott
- Date: 1986
- Language: English
- Type: Text
- Identifier: vital:7550 , http://hdl.handle.net/10962/d1018427
- Full Text:
- Date Issued: 1986
- Authors: Henderson, Derek Scott
- Date: 1986
- Language: English
- Type: Text
- Identifier: vital:7550 , http://hdl.handle.net/10962/d1018427
- Full Text:
- Date Issued: 1986
Vice-Chancellor's message for the RUSA reporter : draft
- Authors: Henderson, Derek Scott
- Date: 1986
- Language: English
- Type: text
- Identifier: vital:7520 , http://hdl.handle.net/10962/d1018397
- Full Text:
- Date Issued: 1986
- Authors: Henderson, Derek Scott
- Date: 1986
- Language: English
- Type: text
- Identifier: vital:7520 , http://hdl.handle.net/10962/d1018397
- Full Text:
- Date Issued: 1986