An investigation into the anxiolytic properties of melatonin in humans
- McCallaghan, Johannes Jacobus
- Authors: McCallaghan, Johannes Jacobus
- Date: 1999
- Subjects: Melatonin , Pineal gland -- Secretions
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3772 , http://hdl.handle.net/10962/d1003250 , Melatonin , Pineal gland -- Secretions
- Description: The purpose of this project was to investigate the role of melatonin in the pathophysiology of anxiety in humans. The literature study confirmed the intimate relationship between serotonin and melatonin. Melatonin is not only able to act as an agonist (in physiological concentrations) and an antagonist (at higher concentrations) on serotonin receptors but via control of brain pyridoxal kinase activity might have an effect on GABA, serotonin, dopamine and norepinephrine synthesis. A clinical trial to investigate melatonin's effect on anxiety in humans was conducted as a pilot study. Thirty patients complaining of anxiety participated in a liN of 1" double blind placebo controlled trial. During the experiment each subject was thus exposed to melatonin and a placebo for a week at a time on two occasions. During the first phase of the experiment, (Pair '1) patients showed a statistically significant reduction in their anxiety levels during the first period (P1P1), which was not the case during the second period (P1P2). The improvement however continued during the second phase of the experiment (Pair 2) so that there was also a statistically significant improvement during P 2 P 2 (Period 2 / Pair 2) when placebo was administered. It could not conclusively be shown that melatonin was responsible for the improvement in the patients' anxiety. The explanation for these results suggests thelt the improvement was due to a: 1) placebo effect throughout, 2) psychotherapeutic effect due to contact with a clinician, 3) melatonin induced phase shift in the patient's endogenous melatonin response curve, 4) combination of all 3 options. This pilot study lays the groundwork for a much more exhaustive study in which the melatonin of the patients is determined before melatonin is administered, the role of the clinician is clarified and the most appropriate time for melatonin administration is sought .
- Full Text:
- Date Issued: 1999
- Authors: McCallaghan, Johannes Jacobus
- Date: 1999
- Subjects: Melatonin , Pineal gland -- Secretions
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3772 , http://hdl.handle.net/10962/d1003250 , Melatonin , Pineal gland -- Secretions
- Description: The purpose of this project was to investigate the role of melatonin in the pathophysiology of anxiety in humans. The literature study confirmed the intimate relationship between serotonin and melatonin. Melatonin is not only able to act as an agonist (in physiological concentrations) and an antagonist (at higher concentrations) on serotonin receptors but via control of brain pyridoxal kinase activity might have an effect on GABA, serotonin, dopamine and norepinephrine synthesis. A clinical trial to investigate melatonin's effect on anxiety in humans was conducted as a pilot study. Thirty patients complaining of anxiety participated in a liN of 1" double blind placebo controlled trial. During the experiment each subject was thus exposed to melatonin and a placebo for a week at a time on two occasions. During the first phase of the experiment, (Pair '1) patients showed a statistically significant reduction in their anxiety levels during the first period (P1P1), which was not the case during the second period (P1P2). The improvement however continued during the second phase of the experiment (Pair 2) so that there was also a statistically significant improvement during P 2 P 2 (Period 2 / Pair 2) when placebo was administered. It could not conclusively be shown that melatonin was responsible for the improvement in the patients' anxiety. The explanation for these results suggests thelt the improvement was due to a: 1) placebo effect throughout, 2) psychotherapeutic effect due to contact with a clinician, 3) melatonin induced phase shift in the patient's endogenous melatonin response curve, 4) combination of all 3 options. This pilot study lays the groundwork for a much more exhaustive study in which the melatonin of the patients is determined before melatonin is administered, the role of the clinician is clarified and the most appropriate time for melatonin administration is sought .
- Full Text:
- Date Issued: 1999
Nalente kabawo
- Mafika, N, Ndzelani, M, Magqirha, N, Tukani, N, Tukani, M, Pintshana, T, Mukwena, E, Thukani, M. J., Ndzelani, N, Dargie, Dave
- Authors: Mafika, N , Ndzelani, M , Magqirha, N , Tukani, N , Tukani, M , Pintshana, T , Mukwena, E , Thukani, M. J. , Ndzelani, N , Dargie, Dave
- Date: 1999
- Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Hogsback sa
- Language: IsiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/344494 , vital:63137 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC347a-02
- Description: Traditional music
- Full Text: false
- Date Issued: 1999
- Authors: Mafika, N , Ndzelani, M , Magqirha, N , Tukani, N , Tukani, M , Pintshana, T , Mukwena, E , Thukani, M. J. , Ndzelani, N , Dargie, Dave
- Date: 1999
- Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Hogsback sa
- Language: IsiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/344494 , vital:63137 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC347a-02
- Description: Traditional music
- Full Text: false
- Date Issued: 1999
Buffering strategies and bandwidth renegotiation for MPEG video streams
- Authors: Schonken, Nico
- Date: 1999
- Subjects: Video compression , Computer algorithms , Digital video
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4651 , http://hdl.handle.net/10962/d1006620 , Video compression , Computer algorithms , Digital video
- Description: This paper confirms the existence of short-term and long-term variation of the required bandwidth for MPEG videostreams. We show how the use of a small amount of buffering and GOP grouping can significantly reduce the effect of the short-term variation. By introducing a number of bandwidth renegotiation techniques, which can be applied to MPEG video streams in general, we are able to reduce the effect of long-term variation. These techniques include those that need the a priori knowledge of frame sizes as well as one that can renegotiate dynamically. A costing algorithm has also been introduced in order to compare various proposals against each other.
- Full Text:
- Date Issued: 1999
- Authors: Schonken, Nico
- Date: 1999
- Subjects: Video compression , Computer algorithms , Digital video
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4651 , http://hdl.handle.net/10962/d1006620 , Video compression , Computer algorithms , Digital video
- Description: This paper confirms the existence of short-term and long-term variation of the required bandwidth for MPEG videostreams. We show how the use of a small amount of buffering and GOP grouping can significantly reduce the effect of the short-term variation. By introducing a number of bandwidth renegotiation techniques, which can be applied to MPEG video streams in general, we are able to reduce the effect of long-term variation. These techniques include those that need the a priori knowledge of frame sizes as well as one that can renegotiate dynamically. A costing algorithm has also been introduced in order to compare various proposals against each other.
- Full Text:
- Date Issued: 1999
Mane mi Gnoul
- Thione Seck (lead singer), Raam Daan (band name of accompanying musicians), Syllart Production
- Authors: Thione Seck (lead singer) , Raam Daan (band name of accompanying musicians) , Syllart Production
- Date: 1999
- Subjects: Popular music , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/131361 , vital:36563 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC52-02
- Description: The spare beautiful Dakar sound is propelled by percussion,and dominated by Thione Seck's thrilling voice
- Full Text: false
- Date Issued: 1999
- Authors: Thione Seck (lead singer) , Raam Daan (band name of accompanying musicians) , Syllart Production
- Date: 1999
- Subjects: Popular music , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/131361 , vital:36563 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC52-02
- Description: The spare beautiful Dakar sound is propelled by percussion,and dominated by Thione Seck's thrilling voice
- Full Text: false
- Date Issued: 1999
Liggey
- Micka Gomis (lead vocal, keyboard, percussion, composer, arranger), Pathe Jassi (bass, vocals), Ousmane Sowe (keyboard, horns, percussion), Omar Sowe (guitar), Ablaye "Bird" Ndiaye (saxophone), Papa Ndiaye Guewel (sabars, jimbe), Karim Mbaye (sabar), Kaare Wamberg (drums programming, vocals, guitar, bass), Josephone Ciss, Therese Mamady, Clara Mendy, Jeannette Senghor (chorus), Studio 2000
- Authors: Micka Gomis (lead vocal, keyboard, percussion, composer, arranger) , Pathe Jassi (bass, vocals) , Ousmane Sowe (keyboard, horns, percussion) , Omar Sowe (guitar) , Ablaye "Bird" Ndiaye (saxophone) , Papa Ndiaye Guewel (sabars, jimbe) , Karim Mbaye (sabar) , Kaare Wamberg (drums programming, vocals, guitar, bass) , Josephone Ciss, Therese Mamady, Clara Mendy, Jeannette Senghor (chorus) , Studio 2000
- Date: 1999
- Subjects: Popular music , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129108 , vital:36218 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC18-07
- Description: Senegalese band, featuring solo male vocals and chorus. The song mixes traditional Senegalese rhythm and sounds with the western soul genre, accompanied by traditional and modern instruments
- Full Text: false
- Date Issued: 1999
- Authors: Micka Gomis (lead vocal, keyboard, percussion, composer, arranger) , Pathe Jassi (bass, vocals) , Ousmane Sowe (keyboard, horns, percussion) , Omar Sowe (guitar) , Ablaye "Bird" Ndiaye (saxophone) , Papa Ndiaye Guewel (sabars, jimbe) , Karim Mbaye (sabar) , Kaare Wamberg (drums programming, vocals, guitar, bass) , Josephone Ciss, Therese Mamady, Clara Mendy, Jeannette Senghor (chorus) , Studio 2000
- Date: 1999
- Subjects: Popular music , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129108 , vital:36218 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC18-07
- Description: Senegalese band, featuring solo male vocals and chorus. The song mixes traditional Senegalese rhythm and sounds with the western soul genre, accompanied by traditional and modern instruments
- Full Text: false
- Date Issued: 1999
Wayo Waye
- Omar Pene (author, composer, lead vocal), Babacar Dieng, Mada Ba (Super Diamono vocals), Lappa Diagne (Super Diamono drums), Iba Ndiaye, Papis Ba, Ousmane Sow (Super Diamono keyboards), Doudou Conare, Ousmane Sow (Super Diamono guitars), Pape Ndiaye ( Super Diamono percussion), Dembel Diop (Super Diamono bass, arrangement), Amy Bamba, Awa Maiga (guest vocals), Brass: Philippe Slominsky, Ibou Konate (guest trumpet), Alain Hatot, Sanou Diouf (guest saxophone), Jacques Bolognesi, Moustapha Fall (guest trombone), Philippe Guez (guest keyboard), Thio Mbaye (guest percussions, vocal), Syllart Production
- Authors: Omar Pene (author, composer, lead vocal) , Babacar Dieng, Mada Ba (Super Diamono vocals) , Lappa Diagne (Super Diamono drums) , Iba Ndiaye, Papis Ba, Ousmane Sow (Super Diamono keyboards) , Doudou Conare, Ousmane Sow (Super Diamono guitars) , Pape Ndiaye ( Super Diamono percussion) , Dembel Diop (Super Diamono bass, arrangement) , Amy Bamba, Awa Maiga (guest vocals) , Brass: Philippe Slominsky, Ibou Konate (guest trumpet), Alain Hatot, Sanou Diouf (guest saxophone), Jacques Bolognesi, Moustapha Fall (guest trombone) , Philippe Guez (guest keyboard) , Thio Mbaye (guest percussions, vocal) , Syllart Production
- Date: 1999
- Subjects: Mbalax (Music) , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/130328 , vital:36405 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC41-03
- Description: Reggae and jazz influenced dance music rooted in Sengalese mbalax frenetic and syncopated rhythms
- Full Text: false
- Date Issued: 1999
- Authors: Omar Pene (author, composer, lead vocal) , Babacar Dieng, Mada Ba (Super Diamono vocals) , Lappa Diagne (Super Diamono drums) , Iba Ndiaye, Papis Ba, Ousmane Sow (Super Diamono keyboards) , Doudou Conare, Ousmane Sow (Super Diamono guitars) , Pape Ndiaye ( Super Diamono percussion) , Dembel Diop (Super Diamono bass, arrangement) , Amy Bamba, Awa Maiga (guest vocals) , Brass: Philippe Slominsky, Ibou Konate (guest trumpet), Alain Hatot, Sanou Diouf (guest saxophone), Jacques Bolognesi, Moustapha Fall (guest trombone) , Philippe Guez (guest keyboard) , Thio Mbaye (guest percussions, vocal) , Syllart Production
- Date: 1999
- Subjects: Mbalax (Music) , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/130328 , vital:36405 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC41-03
- Description: Reggae and jazz influenced dance music rooted in Sengalese mbalax frenetic and syncopated rhythms
- Full Text: false
- Date Issued: 1999
Bassa Kele
- Mamou Sidibe (composer, author, lead singer), Yves Wernert (bass, recording engineer)), Boua Diakite (kamelen'ngoni), Moussa Kanoute (karignan), Ramata Diakite (chorus), Moussa Kone (accoustic and electric guitar), Adama Traore (calebasse), MALI K7 S.A. Ali Furka Toure Associe, Bamako
- Authors: Mamou Sidibe (composer, author, lead singer) , Yves Wernert (bass, recording engineer)) , Boua Diakite (kamelen'ngoni) , Moussa Kanoute (karignan) , Ramata Diakite (chorus) , Moussa Kone (accoustic and electric guitar) , Adama Traore (calebasse) , MALI K7 S.A. Ali Furka Toure Associe, Bamako
- Date: 1999
- Subjects: Popular music--Africa, West , Folk music , Africa Mali Bamako f-ml
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129866 , vital:36340 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC34-04
- Description: Traditional Malian song in the Wasssoulou style overlaid with modern techno sound producing Mali-Techno music and giving the performer the nickname techno-Mamou
- Full Text: false
- Date Issued: 1999
- Authors: Mamou Sidibe (composer, author, lead singer) , Yves Wernert (bass, recording engineer)) , Boua Diakite (kamelen'ngoni) , Moussa Kanoute (karignan) , Ramata Diakite (chorus) , Moussa Kone (accoustic and electric guitar) , Adama Traore (calebasse) , MALI K7 S.A. Ali Furka Toure Associe, Bamako
- Date: 1999
- Subjects: Popular music--Africa, West , Folk music , Africa Mali Bamako f-ml
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129866 , vital:36340 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC34-04
- Description: Traditional Malian song in the Wasssoulou style overlaid with modern techno sound producing Mali-Techno music and giving the performer the nickname techno-Mamou
- Full Text: false
- Date Issued: 1999
NUMSA’s Staff Disciplinary Code and Procedure
- NUMSA
- Authors: NUMSA
- Date: 1999
- Subjects: NUMSA
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/173722 , vital:42404
- Description: In circumstances in which the breach of a rule or failure to meet a required standard is not serious enough to warrant a final written warning or dismissal, the appropriate Local Chairperson, Regional Secretary or General Secretary may issue a verbal warning or first written warning after discussion with and counselling of the official.
- Full Text:
- Date Issued: 1999
- Authors: NUMSA
- Date: 1999
- Subjects: NUMSA
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/173722 , vital:42404
- Description: In circumstances in which the breach of a rule or failure to meet a required standard is not serious enough to warrant a final written warning or dismissal, the appropriate Local Chairperson, Regional Secretary or General Secretary may issue a verbal warning or first written warning after discussion with and counselling of the official.
- Full Text:
- Date Issued: 1999
Effective application of digital printing techniques for fine artists in the South African context
- Authors: Giloi, Susan Louise
- Date: 1999
- Subjects: Photography -- Digital techniques
- Language: English
- Type: Thesis , Masters , MTech (Photography)
- Identifier: vital:10760 , http://hdl.handle.net/10948/15 , Photography -- Digital techniques
- Description: The question to be answered by this research is how would a fine artist working in South Africa, identify and use the correct digital printing techniques to accurately print their work?
- Full Text:
- Date Issued: 1999
- Authors: Giloi, Susan Louise
- Date: 1999
- Subjects: Photography -- Digital techniques
- Language: English
- Type: Thesis , Masters , MTech (Photography)
- Identifier: vital:10760 , http://hdl.handle.net/10948/15 , Photography -- Digital techniques
- Description: The question to be answered by this research is how would a fine artist working in South Africa, identify and use the correct digital printing techniques to accurately print their work?
- Full Text:
- Date Issued: 1999
Research portfolio : environmental education
- Authors: Le Roux, Kim
- Date: 1999
- Subjects: Environmental education -- South Africa , Environmental education -- Study and teaching -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1738 , http://hdl.handle.net/10962/d1003622
- Full Text:
- Date Issued: 1999
- Authors: Le Roux, Kim
- Date: 1999
- Subjects: Environmental education -- South Africa , Environmental education -- Study and teaching -- South Africa
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1738 , http://hdl.handle.net/10962/d1003622
- Full Text:
- Date Issued: 1999
SAMWU's Anti-Privatisation campaign 1997-1999
- SAMWU
- Authors: SAMWU
- Date: 1999
- Subjects: SAMWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/111213 , vital:33414
- Description: Last week, SAMWU held lunchtime demonstrations around the country to protest against the privatisation of municipal services. The demonstrations were well attended with reports from the regions indicating that thousands of workers turned out. SAMWU has received an overwhelming show of solidarity from the international community. The General Secretary of UNISON, Britain’s largest public sector union with over 1 million members, wrote that “The UK experience of water privatisation has been huge windfall profits for the companies, record dividends for their shareholders, and massive pay rises for those at the top of these companies. At the same time, employees have suffered job losses, while consumers have had massive price rises. Drought restrictions are widespread and almost one third of all water leaks from old pipes.” The Community and Public Sector Union is Australia wrote that “the Victorian government has pursued similar policies since its election in 1992, and this has resulted in the loss of over 30 000 jobs. Despite the massive effort at privatisation, the state remains the highest taxed state in the nation!” The President of the Public Services Association in Trinidad and Tobago wrote “Our own experience is that Severn Trent of the UK has been granted a loan facility by our government to cover all operational losses for the three year period, thereby taking no risks and collecting management fees of millions of dollars. Water is the most essential commodity for humans and it should never be handed over to the private sector profiteers.” The Executive Committee of Algemene Onderwijsbond, Netherlands wrote: “the evil of privatisation of public holdings is a worldwide problem.. .be convinced of our solidarity and support with your struggle.” SINTAP, the Portuguese Union representing public administration personnel wrote: “We hope the Ministry of Constitutional Development will be able to accept your pilot projects for public sector alternatives to privatisation of water and waste services.” The International Secretary of the 1.3 million member AFSCME (American Federation of State, County and Municipal Employees) wrote: “given its central importance to sustaining life, water must remain in public hands. We applaud your actions to ensure working conditions for those employed in these critical public services and your leadership in educating the community of the danges associated with privatisation.” The President of the Lithuanian Trade Union Federation of Public Services faxed SAMWU’s President a message saying that “in Lithuania, the capital city of Vilnius has been fighting French multinational Lyonnaise Des Eaux for four years. They want to buy our city’s water system for 5 million US dollars and get 30% of the shares, which is valued at 660 000 US dollars. Its profit the company will get from our citizens pockets.”
- Full Text:
- Date Issued: 1999
- Authors: SAMWU
- Date: 1999
- Subjects: SAMWU
- Language: English
- Type: text
- Identifier: http://hdl.handle.net/10962/111213 , vital:33414
- Description: Last week, SAMWU held lunchtime demonstrations around the country to protest against the privatisation of municipal services. The demonstrations were well attended with reports from the regions indicating that thousands of workers turned out. SAMWU has received an overwhelming show of solidarity from the international community. The General Secretary of UNISON, Britain’s largest public sector union with over 1 million members, wrote that “The UK experience of water privatisation has been huge windfall profits for the companies, record dividends for their shareholders, and massive pay rises for those at the top of these companies. At the same time, employees have suffered job losses, while consumers have had massive price rises. Drought restrictions are widespread and almost one third of all water leaks from old pipes.” The Community and Public Sector Union is Australia wrote that “the Victorian government has pursued similar policies since its election in 1992, and this has resulted in the loss of over 30 000 jobs. Despite the massive effort at privatisation, the state remains the highest taxed state in the nation!” The President of the Public Services Association in Trinidad and Tobago wrote “Our own experience is that Severn Trent of the UK has been granted a loan facility by our government to cover all operational losses for the three year period, thereby taking no risks and collecting management fees of millions of dollars. Water is the most essential commodity for humans and it should never be handed over to the private sector profiteers.” The Executive Committee of Algemene Onderwijsbond, Netherlands wrote: “the evil of privatisation of public holdings is a worldwide problem.. .be convinced of our solidarity and support with your struggle.” SINTAP, the Portuguese Union representing public administration personnel wrote: “We hope the Ministry of Constitutional Development will be able to accept your pilot projects for public sector alternatives to privatisation of water and waste services.” The International Secretary of the 1.3 million member AFSCME (American Federation of State, County and Municipal Employees) wrote: “given its central importance to sustaining life, water must remain in public hands. We applaud your actions to ensure working conditions for those employed in these critical public services and your leadership in educating the community of the danges associated with privatisation.” The President of the Lithuanian Trade Union Federation of Public Services faxed SAMWU’s President a message saying that “in Lithuania, the capital city of Vilnius has been fighting French multinational Lyonnaise Des Eaux for four years. They want to buy our city’s water system for 5 million US dollars and get 30% of the shares, which is valued at 660 000 US dollars. Its profit the company will get from our citizens pockets.”
- Full Text:
- Date Issued: 1999
Kukude kulo mama
- Mafika, N, Ndzelani, M, Magqirha, N, Tukani, N, Tukani, M, Pintshana, T, Mukwena, E, Thukani, M. J., Ndzelani, N, Dargie, Dave
- Authors: Mafika, N , Ndzelani, M , Magqirha, N , Tukani, N , Tukani, M , Pintshana, T , Mukwena, E , Thukani, M. J. , Ndzelani, N , Dargie, Dave
- Date: 1999
- Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Hogsback sa
- Language: IsiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/344535 , vital:63141 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC347a-04
- Description: Xhosa Singers at the Hogsback mini festival
- Full Text: false
- Date Issued: 1999
- Authors: Mafika, N , Ndzelani, M , Magqirha, N , Tukani, N , Tukani, M , Pintshana, T , Mukwena, E , Thukani, M. J. , Ndzelani, N , Dargie, Dave
- Date: 1999
- Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Hogsback sa
- Language: IsiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/344535 , vital:63141 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC347a-04
- Description: Xhosa Singers at the Hogsback mini festival
- Full Text: false
- Date Issued: 1999
Development of integrated biological processing for the biodesalination of sulphate- and metal-rich wastewaters
- Authors: Boshoff, Genevieve Ann
- Date: 1999
- Subjects: Sewage -- Purification -- Biological treatment Sulfates Mineral industries -- Environmental aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3899 , http://hdl.handle.net/10962/d1003958
- Description: The substantial pollution threat to the South African environment from acid mine drainage (AMD) effluents has been well documented. Due to the juvenile nature of acidity in these flows, any remediation strategies implemented will need to function effectively and at low cost for long periods of time. The widespread use of sulphate reducing biological systems for the treatment of such effluents, and in particular large volume flows, has been limited. The supply of inexpensive electron donor and carbon sources, as well as appropriate reactor designs capable of handling large volume flows, have been identified as among the principal factors limiting development of this technology. The broad aim of the research programme reported here was to undertake an evaluation of the feasibility of an algal-bacterial integrated ponding system for the treatment of AMD, and the waste stabilisation pond (WSP) as an appropriate reactor design for this application. The study attempted to demonstrate the feasibility of individual unit operations in a proposed process train using complex organic carbon serving as the electron donor source for the sulphate reducing bacteria (SRB). Studies were undertaken as laboratory and pilot-scale investigations. Tannery effluent was shown to be a functional carbon source for biological sulphate reduction, with effective removal of sulphate and organics being recorded. In turn, the use of biological sulphate reduction for the treatment of tannery effluent was demonstrated. Algal biomass was shown in laboratory studies to function as an effective carbon source for biological sulphate reduction. It is known that micro-algae produce large quantities of photosynthate which is released to the growth medium under conditions of physiological stress. The potential for the use of photosynthate production in high rate algal ponding systems and its manipulation and use as a sustainable carbon source for sulphate reduction was investigated. Growth of a mixed culture of Dunaliella under conditions of light, temperature and salinity stress demonstrated production of large quantities of organic carbon. However, growth was inhibited at high temperatures. An elevation of salinity levels led to a decrease in growth of Dunaliella, but to increased organic carbon production. Spirulina spp., on the other hand, grew well at higher temperatures but showed the highest organic carbon production, and release to the medium, under low light conditions. These results led to a proposed process for the integration of algal ponding into an integrated system for the treatment of AMD. The algal biomass may be fed into the anaerobic digester as a carbon source, or it may be passed into a High Rate Algal Pond (HRAP) where it is stressed to enhance the organic carbon content. This can then be fed into the anaerobic digester as a carbon source. The impact of high levels of sulphide in the water feeding to the algal growth compartment was investigated. Spirulina spp. isolated from a tannery waste stabilisation pond was shown to be a sulphidophilic strain of cyanobacterium, capable of being adapted to high concentrations of sulphide. Dunaliella salina on the other hand was less tolerant. These results demonstrated the practical use of algal biomass providing an oxygen-rich cap for odour control on the surface of the facultative pond as well for the secondary treatment of sulphide-rich overflow to the High Rate Algal Pond. The ability of micro-algae to elevate the pH of their surrounding environment was evaluated as a functional precipitant and neutralisation reagent for acidic metal containing wastewater. Spirulina spp. was shown to perform effectively. D. salina was less functional in this environment. Anacystis spp. was effective in elevating the pH of a defined medium as well as a zinc-rich effluent. These results indicated the practicality of a neutralising function for algal ponds in the treatment of AMD. Metal removal in the system was found to be a combined function of sulphide precipitation, removal by binding to micro-algal biomass and extracellular polymeric substances. The feasibility of waste stabilisation ponding technology use for the treatment of large volume AMD effluents was provisionally demonstrated. It was shown that complex carbon sources would be used as efficient electron donors for sulphate reduction. The integration of algal ponding into the system provides for the generation of a sustainable carbon source, odour control with the recycling of oxygen-rich water onto the top of the facultative pond, secondary treatment of the anaerobic digester overflow, and the neutralisation of the incoming acidic effluents and removal of heavy metals. Integration of the individual unit operations, the feasibility of which has been provisionally demonstrated in this study, into a continuous process train is being investigated in follow-upstudies.
- Full Text:
- Date Issued: 1999
- Authors: Boshoff, Genevieve Ann
- Date: 1999
- Subjects: Sewage -- Purification -- Biological treatment Sulfates Mineral industries -- Environmental aspects
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:3899 , http://hdl.handle.net/10962/d1003958
- Description: The substantial pollution threat to the South African environment from acid mine drainage (AMD) effluents has been well documented. Due to the juvenile nature of acidity in these flows, any remediation strategies implemented will need to function effectively and at low cost for long periods of time. The widespread use of sulphate reducing biological systems for the treatment of such effluents, and in particular large volume flows, has been limited. The supply of inexpensive electron donor and carbon sources, as well as appropriate reactor designs capable of handling large volume flows, have been identified as among the principal factors limiting development of this technology. The broad aim of the research programme reported here was to undertake an evaluation of the feasibility of an algal-bacterial integrated ponding system for the treatment of AMD, and the waste stabilisation pond (WSP) as an appropriate reactor design for this application. The study attempted to demonstrate the feasibility of individual unit operations in a proposed process train using complex organic carbon serving as the electron donor source for the sulphate reducing bacteria (SRB). Studies were undertaken as laboratory and pilot-scale investigations. Tannery effluent was shown to be a functional carbon source for biological sulphate reduction, with effective removal of sulphate and organics being recorded. In turn, the use of biological sulphate reduction for the treatment of tannery effluent was demonstrated. Algal biomass was shown in laboratory studies to function as an effective carbon source for biological sulphate reduction. It is known that micro-algae produce large quantities of photosynthate which is released to the growth medium under conditions of physiological stress. The potential for the use of photosynthate production in high rate algal ponding systems and its manipulation and use as a sustainable carbon source for sulphate reduction was investigated. Growth of a mixed culture of Dunaliella under conditions of light, temperature and salinity stress demonstrated production of large quantities of organic carbon. However, growth was inhibited at high temperatures. An elevation of salinity levels led to a decrease in growth of Dunaliella, but to increased organic carbon production. Spirulina spp., on the other hand, grew well at higher temperatures but showed the highest organic carbon production, and release to the medium, under low light conditions. These results led to a proposed process for the integration of algal ponding into an integrated system for the treatment of AMD. The algal biomass may be fed into the anaerobic digester as a carbon source, or it may be passed into a High Rate Algal Pond (HRAP) where it is stressed to enhance the organic carbon content. This can then be fed into the anaerobic digester as a carbon source. The impact of high levels of sulphide in the water feeding to the algal growth compartment was investigated. Spirulina spp. isolated from a tannery waste stabilisation pond was shown to be a sulphidophilic strain of cyanobacterium, capable of being adapted to high concentrations of sulphide. Dunaliella salina on the other hand was less tolerant. These results demonstrated the practical use of algal biomass providing an oxygen-rich cap for odour control on the surface of the facultative pond as well for the secondary treatment of sulphide-rich overflow to the High Rate Algal Pond. The ability of micro-algae to elevate the pH of their surrounding environment was evaluated as a functional precipitant and neutralisation reagent for acidic metal containing wastewater. Spirulina spp. was shown to perform effectively. D. salina was less functional in this environment. Anacystis spp. was effective in elevating the pH of a defined medium as well as a zinc-rich effluent. These results indicated the practicality of a neutralising function for algal ponds in the treatment of AMD. Metal removal in the system was found to be a combined function of sulphide precipitation, removal by binding to micro-algal biomass and extracellular polymeric substances. The feasibility of waste stabilisation ponding technology use for the treatment of large volume AMD effluents was provisionally demonstrated. It was shown that complex carbon sources would be used as efficient electron donors for sulphate reduction. The integration of algal ponding into the system provides for the generation of a sustainable carbon source, odour control with the recycling of oxygen-rich water onto the top of the facultative pond, secondary treatment of the anaerobic digester overflow, and the neutralisation of the incoming acidic effluents and removal of heavy metals. Integration of the individual unit operations, the feasibility of which has been provisionally demonstrated in this study, into a continuous process train is being investigated in follow-upstudies.
- Full Text:
- Date Issued: 1999
Electrochemical studies of metal-ligand interactions and of metal binding proteins
- Authors: Limson, Janice Leigh
- Date: 1999
- Subjects: Electrochemical analysis , Metals -- Analysis , Proteins -- Analysis , Electrochemistry -- Technique
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4551 , http://hdl.handle.net/10962/d1018239
- Description: Electrochemical methods were researched for the analysis of metals, proteins and the identification of metal binding proteins. Adsorptive cathodic stripping voltamrnetry for metal analysis combines the inherent sensitivity of electrochemical techniques with the specificity of ligands for the nonfaradaic preconcentration of analytes at the electrode. The utility of catechol, resorcinol, 4-methylcatechol and 4-t-butylcatechol as ligands was explored for the sensitive analysis of copper, bismuth, cadmium and lead on a mercury film glassy carbon electrode. Metal complexes of lead, copper and bismuth with resorcinol showed the largest increase in current with increase in metal concentration, whereas complexes of these metals with 4-t-butylcatechol showed the lowest current response. Cadmium showed the highest current responses with 4-methylcatechol. The four metals could be determined simultaneously in the presence of resorcinol, although considerable interference was observed between bismuth and copper. The electroanalysis of cysteine and cysteine containing proteins at carbon electrodes are impaired by slow electron transfer rates at carbon electrodes, exhibiting high overpotentials, greater than 1 V vs Ag! Agel. Metallophthalocyanines have been shown to promote the electrocatalysis of cysteine at lowered potentials. Chemical modification of electrodes with appropriate modifiers is a means of incorporating specificity into electroanalysis, with applications in electrocatalysis. A glassy carbon electrode was modified by electrodeposition of cobalt (II) tetrasulphophthalocyanine [Co(II)TSPct to produce a chemically modified glassy carbon electrode (CMGCE). The CoTSPc-CMGCE catalysed the oxidation of cysteine in the pH range 1 to 10. The significance of this electrode is an application for analysis of proteins at biological pH's. A biscyanoruthenium(II) phthalocyanine CMGCE catalysed the oxidation of cysteine at 0.43 V vs Ag/AgCl a significant lowering in the overpotential for the oxidation of cysteine. Metallothionein, a metal binding protein, is believed to be involved in metal homeostasis and detoxification in the peripheral organs of living systems. A method for the quantitative determination of this protein utilising its high cysteine content was presented. At pH 8.4 Tris-HCl buffer, and using a CoTSPc-CMGCE modified by electrodeposition of the modifier, the anodic peaks for the oxidation of metallothionein was observed at 0. 90 V vs Ag/ AgCI. Ferredoxin is a simple iron-sulphur protein. One tenth of its residues are cysteine. Ferredoxin is involved in simple electron transfer processes during photosynthesis and respiration. Electrochemical studies of spinach ferredoxin were conducted at a CoTSPc-CMGCE. Anodic currents for the oxidation of the cysteine fragment of ferredoxin was observed at 0.85 V vs Ag/AgCl in HEPES buffer at pH 7.4, representing a new method for analysis of this protein. Voltammetric studies of its ferric/ferrous transition have shown quasi-reversible waves atE~ -0.62 V vs Ag/AgCl only in the presence of promoters. At a CoTSPc-CMGCE, a cathodic wave attributed to the reduction of Fe(III)/Fe(II) was observed at Epc -0.34 V vs Ag/AgCl. This represents an alternative method for voltammetric studies of the ferric/ferrous transition at significantly lowered potentials. Melatonin, a pineal gland hormone functions m setting and entraining circadian rhythms and in neuroprotection as a free radical scavenger and general antioxidant. Using adsorptive cathodic stripping voltammetry, the binding affinities of melatonin, serotonin and tryptophan for metals, were measured. The results showed that the following metal complexes were formed: aluminium with melatonin, serotonin and tryptophan; cadmium with melatonin and tryptophan; copper with melatonin and serotonin; iron (III) with melatonin and serotonin; lead with melatonin, tryptophan and serotonin, zinc with melatonin and tryptophan and iron (II) with tryptophan. The studies suggest a further role for melatonin in the reduction of free radical generation and in metal detoxification and may explain the accumulation of aluminium in Alzheimer's disease.
- Full Text:
- Date Issued: 1999
- Authors: Limson, Janice Leigh
- Date: 1999
- Subjects: Electrochemical analysis , Metals -- Analysis , Proteins -- Analysis , Electrochemistry -- Technique
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4551 , http://hdl.handle.net/10962/d1018239
- Description: Electrochemical methods were researched for the analysis of metals, proteins and the identification of metal binding proteins. Adsorptive cathodic stripping voltamrnetry for metal analysis combines the inherent sensitivity of electrochemical techniques with the specificity of ligands for the nonfaradaic preconcentration of analytes at the electrode. The utility of catechol, resorcinol, 4-methylcatechol and 4-t-butylcatechol as ligands was explored for the sensitive analysis of copper, bismuth, cadmium and lead on a mercury film glassy carbon electrode. Metal complexes of lead, copper and bismuth with resorcinol showed the largest increase in current with increase in metal concentration, whereas complexes of these metals with 4-t-butylcatechol showed the lowest current response. Cadmium showed the highest current responses with 4-methylcatechol. The four metals could be determined simultaneously in the presence of resorcinol, although considerable interference was observed between bismuth and copper. The electroanalysis of cysteine and cysteine containing proteins at carbon electrodes are impaired by slow electron transfer rates at carbon electrodes, exhibiting high overpotentials, greater than 1 V vs Ag! Agel. Metallophthalocyanines have been shown to promote the electrocatalysis of cysteine at lowered potentials. Chemical modification of electrodes with appropriate modifiers is a means of incorporating specificity into electroanalysis, with applications in electrocatalysis. A glassy carbon electrode was modified by electrodeposition of cobalt (II) tetrasulphophthalocyanine [Co(II)TSPct to produce a chemically modified glassy carbon electrode (CMGCE). The CoTSPc-CMGCE catalysed the oxidation of cysteine in the pH range 1 to 10. The significance of this electrode is an application for analysis of proteins at biological pH's. A biscyanoruthenium(II) phthalocyanine CMGCE catalysed the oxidation of cysteine at 0.43 V vs Ag/AgCl a significant lowering in the overpotential for the oxidation of cysteine. Metallothionein, a metal binding protein, is believed to be involved in metal homeostasis and detoxification in the peripheral organs of living systems. A method for the quantitative determination of this protein utilising its high cysteine content was presented. At pH 8.4 Tris-HCl buffer, and using a CoTSPc-CMGCE modified by electrodeposition of the modifier, the anodic peaks for the oxidation of metallothionein was observed at 0. 90 V vs Ag/ AgCI. Ferredoxin is a simple iron-sulphur protein. One tenth of its residues are cysteine. Ferredoxin is involved in simple electron transfer processes during photosynthesis and respiration. Electrochemical studies of spinach ferredoxin were conducted at a CoTSPc-CMGCE. Anodic currents for the oxidation of the cysteine fragment of ferredoxin was observed at 0.85 V vs Ag/AgCl in HEPES buffer at pH 7.4, representing a new method for analysis of this protein. Voltammetric studies of its ferric/ferrous transition have shown quasi-reversible waves atE~ -0.62 V vs Ag/AgCl only in the presence of promoters. At a CoTSPc-CMGCE, a cathodic wave attributed to the reduction of Fe(III)/Fe(II) was observed at Epc -0.34 V vs Ag/AgCl. This represents an alternative method for voltammetric studies of the ferric/ferrous transition at significantly lowered potentials. Melatonin, a pineal gland hormone functions m setting and entraining circadian rhythms and in neuroprotection as a free radical scavenger and general antioxidant. Using adsorptive cathodic stripping voltammetry, the binding affinities of melatonin, serotonin and tryptophan for metals, were measured. The results showed that the following metal complexes were formed: aluminium with melatonin, serotonin and tryptophan; cadmium with melatonin and tryptophan; copper with melatonin and serotonin; iron (III) with melatonin and serotonin; lead with melatonin, tryptophan and serotonin, zinc with melatonin and tryptophan and iron (II) with tryptophan. The studies suggest a further role for melatonin in the reduction of free radical generation and in metal detoxification and may explain the accumulation of aluminium in Alzheimer's disease.
- Full Text:
- Date Issued: 1999
Removal of lead from solution by the non-viable biomass of the water fern Azolla filiculoides
- Authors: Sanyahumbi, Douglas
- Date: 1999
- Subjects: Azolla , Heavy metals -- Absorption and adsorption , Lead , Water -- Purification -- Biological treatment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3901 , http://hdl.handle.net/10962/d1003960 , Azolla , Heavy metals -- Absorption and adsorption , Lead , Water -- Purification -- Biological treatment
- Description: The removal of lead from aqueous solution and lead-acid battery manufacturing waste-water by the non-viable biomass of the water fern Azolla filiculoides was investigated in both batch and column reactors. The maximum lead uptake by the Azolla biomass at a pH value of approximately 5, was found to be 100 mg lead/g biomass from aqueous solution. Lead removal varied from 30% of the initial lead concentration at pH 1.5 to approximately 95% at pH values of 3.5 and 5.6. Lead removal from aqueous solution decreased to 30% of the initial lead concentration if the lead concentration was initially over 400 mg/l. At initial lead concentrations of less than 400 mg/l, percentage lead removal was found to be over 90% of the initial lead concentration. Lead removal remained at approximately 90% between 10°C and 50°C. Biomass concentration (4-8 mg/l) had little effect on lead removal. The presence of iron (Fe) and lead, copper (Cu) and lead or all three metal ions in solution at varying ratios to each other did not appear to have any significant effect on lead removal. Percentage lead, copper and iron removal from aqueous solution was 80-95, 45-50 and 65-75% respectively for the different multiple-metal solutions studied. No break-through points were observed for lead removal from aqueous solutions in column reactors, with initial lead concentrations of less than 100 mg/l at varying flow rates of 2, 5 and 10 ml/min. This suggested that flow rate, and therefore retention time, had little effect on percentage lead removal from aqueous solution, which was more that 95%, at low initial lead concentrations (less than 100 mg/l). At initial lead concentrations of 200 mg/l or more, an increase in flow rate, which equates to a decrease in column retention time, resulted in break-through points occurring earlier in the column run. Percentage lead removal values, from lead-acid battery efiluent in column systems, of over 95% were achieved. Desorption of approximately 30% and 40% of bound lead was achieved, with 0.5 M HNO₃ in a volume of 50 ml, from two lead-acid battery. Repeated adsorption and desorption of lead by the Azalia biomass over 10 cycles did not result in any decrease in the percentage lead removal from effluent, which strongly suggested that the Azalla biomass could be re-used a number of times without deterioration in its physical integrity, or lead removal capacity. No evidence of deterioration in the Azolla biomass's physical integrity after 10 successive adsorption and desorption procedures was observed using scanning electron microscopy. The Azolla filiculoides biomass was, therefore, found to be able to effectively remove lead from aqueous solution and lead-acid battery effluent repeatedly, with no observed reduction in it's uptake capacity or physical integrity.
- Full Text:
- Date Issued: 1999
- Authors: Sanyahumbi, Douglas
- Date: 1999
- Subjects: Azolla , Heavy metals -- Absorption and adsorption , Lead , Water -- Purification -- Biological treatment
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:3901 , http://hdl.handle.net/10962/d1003960 , Azolla , Heavy metals -- Absorption and adsorption , Lead , Water -- Purification -- Biological treatment
- Description: The removal of lead from aqueous solution and lead-acid battery manufacturing waste-water by the non-viable biomass of the water fern Azolla filiculoides was investigated in both batch and column reactors. The maximum lead uptake by the Azolla biomass at a pH value of approximately 5, was found to be 100 mg lead/g biomass from aqueous solution. Lead removal varied from 30% of the initial lead concentration at pH 1.5 to approximately 95% at pH values of 3.5 and 5.6. Lead removal from aqueous solution decreased to 30% of the initial lead concentration if the lead concentration was initially over 400 mg/l. At initial lead concentrations of less than 400 mg/l, percentage lead removal was found to be over 90% of the initial lead concentration. Lead removal remained at approximately 90% between 10°C and 50°C. Biomass concentration (4-8 mg/l) had little effect on lead removal. The presence of iron (Fe) and lead, copper (Cu) and lead or all three metal ions in solution at varying ratios to each other did not appear to have any significant effect on lead removal. Percentage lead, copper and iron removal from aqueous solution was 80-95, 45-50 and 65-75% respectively for the different multiple-metal solutions studied. No break-through points were observed for lead removal from aqueous solutions in column reactors, with initial lead concentrations of less than 100 mg/l at varying flow rates of 2, 5 and 10 ml/min. This suggested that flow rate, and therefore retention time, had little effect on percentage lead removal from aqueous solution, which was more that 95%, at low initial lead concentrations (less than 100 mg/l). At initial lead concentrations of 200 mg/l or more, an increase in flow rate, which equates to a decrease in column retention time, resulted in break-through points occurring earlier in the column run. Percentage lead removal values, from lead-acid battery efiluent in column systems, of over 95% were achieved. Desorption of approximately 30% and 40% of bound lead was achieved, with 0.5 M HNO₃ in a volume of 50 ml, from two lead-acid battery. Repeated adsorption and desorption of lead by the Azalia biomass over 10 cycles did not result in any decrease in the percentage lead removal from effluent, which strongly suggested that the Azalla biomass could be re-used a number of times without deterioration in its physical integrity, or lead removal capacity. No evidence of deterioration in the Azolla biomass's physical integrity after 10 successive adsorption and desorption procedures was observed using scanning electron microscopy. The Azolla filiculoides biomass was, therefore, found to be able to effectively remove lead from aqueous solution and lead-acid battery effluent repeatedly, with no observed reduction in it's uptake capacity or physical integrity.
- Full Text:
- Date Issued: 1999
Diggale
- Ismael Lo (author, composer, lead vocal, rhythm guitar, harmonica, chorus), EH. Malick Diouf (solo guitar, arrangments), Paul Thierry Oliveira (keyboard, arrangments), Alioune Wade (bass guitar), El Hadji Faye (percussion), Figaro Diagne (marimba), Abib Ndiaye (drums), Thirifays Claude (saxophone), Ramirez Jean Pierre (trumpet), Welch Jean Marc (trombone), Thione Ballago Seck (performer), Amy Bambe (chorus), Studio 2000, Samassa Records
- Authors: Ismael Lo (author, composer, lead vocal, rhythm guitar, harmonica, chorus) , EH. Malick Diouf (solo guitar, arrangments) , Paul Thierry Oliveira (keyboard, arrangments) , Alioune Wade (bass guitar) , El Hadji Faye (percussion) , Figaro Diagne (marimba) , Abib Ndiaye (drums) , Thirifays Claude (saxophone) , Ramirez Jean Pierre (trumpet) , Welch Jean Marc (trombone) , Thione Ballago Seck (performer) , Amy Bambe (chorus) , Studio 2000 , Samassa Records
- Date: 1999
- Subjects: Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/130137 , vital:36379 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC38-02
- Description: Mbalax sound is characherised by Senegalese nder lead drum, sabar rhythm drum and tama talking drum percussion and African and Arabic vocalistic styling in the Wolof language that accompanies Western keyboard and other electronic guitar and brass instruments
- Full Text: false
- Date Issued: 1999
- Authors: Ismael Lo (author, composer, lead vocal, rhythm guitar, harmonica, chorus) , EH. Malick Diouf (solo guitar, arrangments) , Paul Thierry Oliveira (keyboard, arrangments) , Alioune Wade (bass guitar) , El Hadji Faye (percussion) , Figaro Diagne (marimba) , Abib Ndiaye (drums) , Thirifays Claude (saxophone) , Ramirez Jean Pierre (trumpet) , Welch Jean Marc (trombone) , Thione Ballago Seck (performer) , Amy Bambe (chorus) , Studio 2000 , Samassa Records
- Date: 1999
- Subjects: Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/130137 , vital:36379 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC38-02
- Description: Mbalax sound is characherised by Senegalese nder lead drum, sabar rhythm drum and tama talking drum percussion and African and Arabic vocalistic styling in the Wolof language that accompanies Western keyboard and other electronic guitar and brass instruments
- Full Text: false
- Date Issued: 1999
Sodia
- Amadou Sodia (lead singer, bolon, kora), Hadja Maningbe, Djanka Diabate, Awa Maiga, Valerie Belinga (chorus), Ansoumane Kante, Yeye (percussions), Adame Conde (balafon), Alpha Camara (congas), Ousmane Kouyate, Djely Moussa Kouyate,Manfila Kante (guitar), Djessou Mory (rythm guitar, solo), Brass: Christian Martinez (trumpet), Bernard Camoin (trombone), Thierry Farrugia (saxophone), Phillipe Guez (arrangement, keyboard), Patrick Mareck
- Authors: Amadou Sodia (lead singer, bolon, kora) , Hadja Maningbe, Djanka Diabate, Awa Maiga, Valerie Belinga (chorus) , Ansoumane Kante, Yeye (percussions) , Adame Conde (balafon) , Alpha Camara (congas) , Ousmane Kouyate, Djely Moussa Kouyate,Manfila Kante (guitar) , Djessou Mory (rythm guitar, solo) , Brass: Christian Martinez (trumpet), Bernard Camoin (trombone), Thierry Farrugia (saxophone) , Phillipe Guez (arrangement, keyboard) , Patrick Mareck
- Date: 1999
- Subjects: Popular music , Popular music--Africa, West , Africa Guinea Conakry f-gv
- Language: Susu
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/128604 , vital:36127 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC13-01
- Description: Fusion between traditional Guinean song structures and instruments and western instruments and influence
- Full Text: false
- Date Issued: 1999
- Authors: Amadou Sodia (lead singer, bolon, kora) , Hadja Maningbe, Djanka Diabate, Awa Maiga, Valerie Belinga (chorus) , Ansoumane Kante, Yeye (percussions) , Adame Conde (balafon) , Alpha Camara (congas) , Ousmane Kouyate, Djely Moussa Kouyate,Manfila Kante (guitar) , Djessou Mory (rythm guitar, solo) , Brass: Christian Martinez (trumpet), Bernard Camoin (trombone), Thierry Farrugia (saxophone) , Phillipe Guez (arrangement, keyboard) , Patrick Mareck
- Date: 1999
- Subjects: Popular music , Popular music--Africa, West , Africa Guinea Conakry f-gv
- Language: Susu
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/128604 , vital:36127 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC13-01
- Description: Fusion between traditional Guinean song structures and instruments and western instruments and influence
- Full Text: false
- Date Issued: 1999
N'ganna Cono
- Namakoro Fomba (author, composer, callebasse, Donso n'goni), Koko Dembele (guitar), Abdoul Wahab Berthe (bass guitar, karignan), Assanatou Kouyate, Assetou Kone (chorus), MALI K7 S.A. Ali Furka Toure Associe, Bamako
- Authors: Namakoro Fomba (author, composer, callebasse, Donso n'goni) , Koko Dembele (guitar) , Abdoul Wahab Berthe (bass guitar, karignan) , Assanatou Kouyate, Assetou Kone (chorus) , MALI K7 S.A. Ali Furka Toure Associe, Bamako
- Date: 1999
- Subjects: Popular music--Religious aspects , Popular music--Africa, West , Africa Mali Bamako f-ml
- Language: Bambara
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/130375 , vital:36410 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC42-02
- Description: Traditional Malian music that reflects the spiritual rhythm of Komo worship of the Malinke, Bambara, Kagoro, Fulani, Manding, Fouladougou and Girgo and Bougouni peoples of Mali
- Full Text: false
- Date Issued: 1999
- Authors: Namakoro Fomba (author, composer, callebasse, Donso n'goni) , Koko Dembele (guitar) , Abdoul Wahab Berthe (bass guitar, karignan) , Assanatou Kouyate, Assetou Kone (chorus) , MALI K7 S.A. Ali Furka Toure Associe, Bamako
- Date: 1999
- Subjects: Popular music--Religious aspects , Popular music--Africa, West , Africa Mali Bamako f-ml
- Language: Bambara
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/130375 , vital:36410 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC42-02
- Description: Traditional Malian music that reflects the spiritual rhythm of Komo worship of the Malinke, Bambara, Kagoro, Fulani, Manding, Fouladougou and Girgo and Bougouni peoples of Mali
- Full Text: false
- Date Issued: 1999
DSC screening of potential prochlorperazine-excipient interactions in preformulation studies
- Brown, Michael E, Antunes, Edith M, Glass, Beverley M, Lebete, Mosimotsana L, Walker, Roderick B
- Authors: Brown, Michael E , Antunes, Edith M , Glass, Beverley M , Lebete, Mosimotsana L , Walker, Roderick B
- Date: 1999
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/184367 , vital:44212 , xlink:href="https://doi.org/10.1023/A:1010150305542"
- Description: Differential scanning calorimetry was used to examine the thermal behaviour of mixtures of the drug prochlorperazine with standard excipients, to assess potential interactions, and of mixtures with cyclodextrins, to investigate inclusion complexation which could increase the photostability of the drug. For most of the excipients (magnesium stearate, stearic acid, Explotab®, Ac-Di-Sol®, Encompress® and Ludipress®, lactose and Starch 1500) disappearance or broadening of the melting endotherm of the drug indicated interactions. Lubritab® was the only 'inert' excipient tested. Mixtures of prochlorperazine and the cyclodextrins gave incomplete inclusion complexation as shown by only partial disappearance of the melting endotherm of the drug.
- Full Text: false
- Date Issued: 1999
- Authors: Brown, Michael E , Antunes, Edith M , Glass, Beverley M , Lebete, Mosimotsana L , Walker, Roderick B
- Date: 1999
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/184367 , vital:44212 , xlink:href="https://doi.org/10.1023/A:1010150305542"
- Description: Differential scanning calorimetry was used to examine the thermal behaviour of mixtures of the drug prochlorperazine with standard excipients, to assess potential interactions, and of mixtures with cyclodextrins, to investigate inclusion complexation which could increase the photostability of the drug. For most of the excipients (magnesium stearate, stearic acid, Explotab®, Ac-Di-Sol®, Encompress® and Ludipress®, lactose and Starch 1500) disappearance or broadening of the melting endotherm of the drug indicated interactions. Lubritab® was the only 'inert' excipient tested. Mixtures of prochlorperazine and the cyclodextrins gave incomplete inclusion complexation as shown by only partial disappearance of the melting endotherm of the drug.
- Full Text: false
- Date Issued: 1999
Salimata
- Koniba Traore (author, composer, interpreter, performer), Straun Douglas
- Authors: Koniba Traore (author, composer, interpreter, performer) , Straun Douglas
- Date: 1999
- Subjects: Choral music , Band music , Popular music--Mali--1991-2000 , Africa Mali Bamako f-ml
- Language: Bambara
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/125510 , vital:35790 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDCO1-04
- Description: Malian polular music
- Full Text: false
- Date Issued: 1999
- Authors: Koniba Traore (author, composer, interpreter, performer) , Straun Douglas
- Date: 1999
- Subjects: Choral music , Band music , Popular music--Mali--1991-2000 , Africa Mali Bamako f-ml
- Language: Bambara
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/125510 , vital:35790 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDCO1-04
- Description: Malian polular music
- Full Text: false
- Date Issued: 1999