PBS 2000
- Didier Sourou Awadi aka DJ Awadi (performer, author), Amadou Barry aka Doug E. Tee, Duggy Tee (performer, author), Palm Tree Enter/Africa with P.B.S. Production
- Authors: Didier Sourou Awadi aka DJ Awadi (performer, author) , Amadou Barry aka Doug E. Tee, Duggy Tee (performer, author) , Palm Tree Enter/Africa with P.B.S. Production
- Date: 2000
- Subjects: Rap (Music) , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof , English , French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/131469 , vital:36584 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC53-03
- Description: Hip hop song sung in English, French and Wolof, accompanied by traditional Senegalese kora and tama musical instruments, as well as Western instruments
- Full Text: false
- Date Issued: 2000
- Authors: Didier Sourou Awadi aka DJ Awadi (performer, author) , Amadou Barry aka Doug E. Tee, Duggy Tee (performer, author) , Palm Tree Enter/Africa with P.B.S. Production
- Date: 2000
- Subjects: Rap (Music) , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: Wolof , English , French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/131469 , vital:36584 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC53-03
- Description: Hip hop song sung in English, French and Wolof, accompanied by traditional Senegalese kora and tama musical instruments, as well as Western instruments
- Full Text: false
- Date Issued: 2000
No more lament
- Ajah Sy ( lead vocals, author, composer, chorus), Biram Ndeck Ndiaye, Aly Hachem (arrangement), Lamine Faye (guitar), El Hadji Niang, Aly Hachem, Ousmane Wade (keyboards), Moussa Traore (percussion), Jean Pierre Gomes (bass), Marie Codou Pouye, Ajah Sy, Abdourahmane Diallo,Missala man, Aly Hachem, Mame Gor Mboup (chorus), Studio 2000
- Authors: Ajah Sy ( lead vocals, author, composer, chorus) , Biram Ndeck Ndiaye , Aly Hachem (arrangement) , Lamine Faye (guitar) , El Hadji Niang, Aly Hachem, Ousmane Wade (keyboards) , Moussa Traore (percussion) , Jean Pierre Gomes (bass) , Marie Codou Pouye, Ajah Sy, Abdourahmane Diallo,Missala man, Aly Hachem, Mame Gor Mboup (chorus) , Studio 2000
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: English , French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129405 , vital:36275 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC27-08
- Description: Lyrical songs with solo and chorus accompanied by keyboard, percussion and guitars, in traditional Senegalese music style mixed with international influences
- Full Text: false
- Date Issued: 2000
- Authors: Ajah Sy ( lead vocals, author, composer, chorus) , Biram Ndeck Ndiaye , Aly Hachem (arrangement) , Lamine Faye (guitar) , El Hadji Niang, Aly Hachem, Ousmane Wade (keyboards) , Moussa Traore (percussion) , Jean Pierre Gomes (bass) , Marie Codou Pouye, Ajah Sy, Abdourahmane Diallo,Missala man, Aly Hachem, Mame Gor Mboup (chorus) , Studio 2000
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: English , French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129405 , vital:36275 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC27-08
- Description: Lyrical songs with solo and chorus accompanied by keyboard, percussion and guitars, in traditional Senegalese music style mixed with international influences
- Full Text: false
- Date Issued: 2000
Geographically distributed requirements elicitation
- Authors: Vat, Nicholas
- Date: 2000
- Subjects: Management information systems -- Management , Information resources management , System design , System analysis
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1136 , http://hdl.handle.net/10962/d1002764 , Management information systems -- Management , Information resources management , System design , System analysis
- Description: The technology revolution has transformed the way in which many organisations do their business. The resultant information systems have increased the decision making powers of executives, leading to increased effectiveness and ultimately to improved product delivery. The process of information systems development is, however, complex. Furthermore, it has a poor track record in terms of on-time and within-budget delivery, but more significantly in terms of low user acceptance frequently attributable to poor user requirements specification. Consequently, much attention has been given to the process of requirements elicitation, with both researchers and businessmen seeking new, innovative and effective methods. These methods usually involve large numbers of participants who are drawn from within the client and developer organisations. This is a financially costly characteristic of the requirements elicitation process. Besides information systems, the technology revolution has also brought sophisticated communication technologies into the marketplace. These communication technologies allow people to communicate with one another in a variety of different time and space scenarios. An important spin-off of this is the ability for people located in significantly different geographical locations to work collaboratively on a project. It is claimed that this approach to work has significant cost and productivity advantages. This study draws the requirements elicitation process into the realm of collaborative work. Important project management, communication, and collaborative working principles are examined in detail, and a model is developed which represents these issues as they pertain to the requirements elicitation process. An empirical study (conducted in South Africa) is performed in order to examine the principles of the model and the relationships between its constituent elements. A model of geographically distributed requirements elicitation (GDRE) is developed on the basis of the findings of this investigation. The model of GDRE is presented as a 3-phased approach to requirements elicitation, namely planning, implementation, and termination. Significantly, the model suggests the use of interviews, structured workshops, and prototyping as the chief requirements elicitation methods to be adopted in appropriate conditions. Although a detailed study of communications technology was not performed, this thesis suggests that each individual GDRE implementation requires a different mix of communication technologies to support its implementation.
- Full Text:
- Date Issued: 2000
- Authors: Vat, Nicholas
- Date: 2000
- Subjects: Management information systems -- Management , Information resources management , System design , System analysis
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:1136 , http://hdl.handle.net/10962/d1002764 , Management information systems -- Management , Information resources management , System design , System analysis
- Description: The technology revolution has transformed the way in which many organisations do their business. The resultant information systems have increased the decision making powers of executives, leading to increased effectiveness and ultimately to improved product delivery. The process of information systems development is, however, complex. Furthermore, it has a poor track record in terms of on-time and within-budget delivery, but more significantly in terms of low user acceptance frequently attributable to poor user requirements specification. Consequently, much attention has been given to the process of requirements elicitation, with both researchers and businessmen seeking new, innovative and effective methods. These methods usually involve large numbers of participants who are drawn from within the client and developer organisations. This is a financially costly characteristic of the requirements elicitation process. Besides information systems, the technology revolution has also brought sophisticated communication technologies into the marketplace. These communication technologies allow people to communicate with one another in a variety of different time and space scenarios. An important spin-off of this is the ability for people located in significantly different geographical locations to work collaboratively on a project. It is claimed that this approach to work has significant cost and productivity advantages. This study draws the requirements elicitation process into the realm of collaborative work. Important project management, communication, and collaborative working principles are examined in detail, and a model is developed which represents these issues as they pertain to the requirements elicitation process. An empirical study (conducted in South Africa) is performed in order to examine the principles of the model and the relationships between its constituent elements. A model of geographically distributed requirements elicitation (GDRE) is developed on the basis of the findings of this investigation. The model of GDRE is presented as a 3-phased approach to requirements elicitation, namely planning, implementation, and termination. Significantly, the model suggests the use of interviews, structured workshops, and prototyping as the chief requirements elicitation methods to be adopted in appropriate conditions. Although a detailed study of communications technology was not performed, this thesis suggests that each individual GDRE implementation requires a different mix of communication technologies to support its implementation.
- Full Text:
- Date Issued: 2000
The evolution of the Brosterlea Volcanic Complex, Eastern Cape, South Africa
- Authors: Surtees, Grant Bradley
- Date: 2000
- Subjects: Volcanism , Geology -- South Africa -- Eastern Cape -- Brosterlea Volcanic Complex , Geology -- South Africa -- Eastern Cape , Flood basalts , Geology, Structural -- South Africa , Formations (Geology) -- South Africa , Geology, Structural -- Maps , Geological mapping
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4944 , http://hdl.handle.net/10962/d1005556 , Volcanism , Geology -- South Africa -- Eastern Cape -- Brosterlea Volcanic Complex , Geology -- South Africa -- Eastern Cape , Flood basalts , Geology, Structural -- South Africa , Formations (Geology) -- South Africa , Geology, Structural -- Maps , Geological mapping
- Description: Detailed field mapping (Map, Appendix B) has been conducted in and around the boundaries of a 14x18km, volcanic complex 35km northeast of Molteno in the Eastern Cape Province, South Africa. The structure is interpreted as a subsidence structure, and is filled with two volcaniclastic breccias, numerous lava flows, a number of sedimentary facies, and lies on a base of Clarens Formation overlying Elliot Formation rocks. This is an important study because 'widespread, voluminous fields of basaltic breccias are very rare (see Hanson and Elliot, 1996) and this is the first time that this type of volcanic complex and its deposits have been described. Detailed analyses of the two volcaniclastic breccias revealed changes in colour, clast types, clast sizes, and degree of alteration over relatively short distances both vertically and laterally within a single breccia unit. The variation in clast sizes implies a lack of sorting of the breccias. The lower of the two volcaniclastic breccias fills the subsidence structure, and outcrops between the Stormberg sedimentary sequence and the overlying Drakensberg basalts and was produced from phreatomagmatic eruptions signalling the start of the break-up of Gondwanaland in the mid-Jurassic. The upper volcaniclastic breccia is interbedded with the flood basalts and is separated from the lower breccia by up to 100m of lava flows in places, it is finer-grained than the lower volcaniclastic breccia, and it extends over 10km south, and over 100km north from the volcanic complex. The upper breccia is inferred to have been transported from outside the study area, from a source presumably similar to the subsidence structure in the volcanic complex. The pyroclastic material forming the upper breccia was transported to the subsidence structure as a laharic debris flow, based on its poorly sorted, unwelded and matrix-supported appearance. However, both breccias are unlikely to have been derived from epiclastic reworking of lava flows as they contain glass shards which are atypical of those derived from the autoclastic component of lava flows. The breccias are therefore not "secondary" lahars. There is also no evidence of any palaeotopographic highs from which the breccias could have been derived as gravity-driven flows. Based on the occurrence of three, 1m thick lacustrine deposits, localised peperite, fluvial reworking of sandstone and breccia in an outcrop to the south of the subsidence structure, and channel-lags encountered only in the upper units of the Clarens Formation and only within the subsidence structure, the palaeoenvironment inferred for the subsidence structure is one of wet sediment, possibly a shallow lake, in a topographic depression fed by small streams. Magmatic intrusions below the subsidence structure heated the water-laden, partly consolidated Clarens Formation sandstones, causing the circulation of pore fluid which resulted in the precipitation of minerals forming pisoliths in the sandstones. Intruding magma mixed, nonexplosively, with the wet, unconsolidated sediments near the base of the Clarens Formation (at approximately 100m below the surface), forming fluidal peperite by a process of sediment fluidisation where magma replaces wet sediment and cools slowly enough to prevent the magma fracturing brittly. Formation of fluidal peperite may have been a precursor to the development of FCIs (Fuel Coolant Interactions) (Busby-Spera and White, 1987). The breccias may represent the products of FCIs and may be the erupted equivalents of the peperites, suggesting a possible genetic link between the two. The peperites may have given way to FCI eruptions due to a number of factors including the drying out of the sediments and/or an increase in the volume of intruded magma below the subsidence structure which may have resulted in a more explosive interaction between sediment and magma. Phreatic activity fragmented and erupted the Clarens Formation sandstone, and stream flows reworked the angular sandstone fragments, pisoliths and sand grains into channelised deposits. With an increase in magmatic activity below the subsidence structure, phreatic activity became phreatomagmatic. The wet, partly consolidated Clarens Formation, and underlying, fully consolidated Elliot Formation sediments were erupted and fragmented. Clasts and individual grains of these sediments were redeposited with juvenile and non-juvenile basaltic material probably by a combination of back fall, where clasts erupted into the air fell directly back into the structure, and backflow where material was erupted out of the structure, but immediately flowed back in as lahars. This material formed the lower volcaniclastic breccia. A fault plane is identified along the southwestern margin of the subsidence structure, and is believed to continue up the western margin to the northwestern corner. A large dolerite body has intruded along the inferred fault plane on the western margin of the structure, and may be related to the formation of the lower volcaniclastic breccia, either directly through fluidisation of wet sediment during its intrusion, or as a dyke extending upwards from a network of sill-like intrusions below the subsidence structure. Geochemical analysis of the Drakensberg basalt lava flows by Mitchell (1980) and Masokwane (1997) revealed four distinct basalt types; the Moshesh's Ford, the Tafelkop, the Roodehoek, and the Vaalkop basalts. Basalt clasts sampled from the lower volcaniclastic breccia were shown to belong to the Moshesh's Ford basalt type which does not outcrop in situ within the subsidence structure. This implies that the Moshesh's Ford basalts were emplaced prior to the formation of the lower volcaniclastic breccia, and may have acted as a "cap-rock" over the system, allowing pressure from the vaporised fluids, heated by intruding basalt, to build up. The Moshesh's Ford basalt type was erupted prior to the resultant phreatomagmatic events forming the lower volcaniclastic breccia.
- Full Text:
- Date Issued: 2000
- Authors: Surtees, Grant Bradley
- Date: 2000
- Subjects: Volcanism , Geology -- South Africa -- Eastern Cape -- Brosterlea Volcanic Complex , Geology -- South Africa -- Eastern Cape , Flood basalts , Geology, Structural -- South Africa , Formations (Geology) -- South Africa , Geology, Structural -- Maps , Geological mapping
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4944 , http://hdl.handle.net/10962/d1005556 , Volcanism , Geology -- South Africa -- Eastern Cape -- Brosterlea Volcanic Complex , Geology -- South Africa -- Eastern Cape , Flood basalts , Geology, Structural -- South Africa , Formations (Geology) -- South Africa , Geology, Structural -- Maps , Geological mapping
- Description: Detailed field mapping (Map, Appendix B) has been conducted in and around the boundaries of a 14x18km, volcanic complex 35km northeast of Molteno in the Eastern Cape Province, South Africa. The structure is interpreted as a subsidence structure, and is filled with two volcaniclastic breccias, numerous lava flows, a number of sedimentary facies, and lies on a base of Clarens Formation overlying Elliot Formation rocks. This is an important study because 'widespread, voluminous fields of basaltic breccias are very rare (see Hanson and Elliot, 1996) and this is the first time that this type of volcanic complex and its deposits have been described. Detailed analyses of the two volcaniclastic breccias revealed changes in colour, clast types, clast sizes, and degree of alteration over relatively short distances both vertically and laterally within a single breccia unit. The variation in clast sizes implies a lack of sorting of the breccias. The lower of the two volcaniclastic breccias fills the subsidence structure, and outcrops between the Stormberg sedimentary sequence and the overlying Drakensberg basalts and was produced from phreatomagmatic eruptions signalling the start of the break-up of Gondwanaland in the mid-Jurassic. The upper volcaniclastic breccia is interbedded with the flood basalts and is separated from the lower breccia by up to 100m of lava flows in places, it is finer-grained than the lower volcaniclastic breccia, and it extends over 10km south, and over 100km north from the volcanic complex. The upper breccia is inferred to have been transported from outside the study area, from a source presumably similar to the subsidence structure in the volcanic complex. The pyroclastic material forming the upper breccia was transported to the subsidence structure as a laharic debris flow, based on its poorly sorted, unwelded and matrix-supported appearance. However, both breccias are unlikely to have been derived from epiclastic reworking of lava flows as they contain glass shards which are atypical of those derived from the autoclastic component of lava flows. The breccias are therefore not "secondary" lahars. There is also no evidence of any palaeotopographic highs from which the breccias could have been derived as gravity-driven flows. Based on the occurrence of three, 1m thick lacustrine deposits, localised peperite, fluvial reworking of sandstone and breccia in an outcrop to the south of the subsidence structure, and channel-lags encountered only in the upper units of the Clarens Formation and only within the subsidence structure, the palaeoenvironment inferred for the subsidence structure is one of wet sediment, possibly a shallow lake, in a topographic depression fed by small streams. Magmatic intrusions below the subsidence structure heated the water-laden, partly consolidated Clarens Formation sandstones, causing the circulation of pore fluid which resulted in the precipitation of minerals forming pisoliths in the sandstones. Intruding magma mixed, nonexplosively, with the wet, unconsolidated sediments near the base of the Clarens Formation (at approximately 100m below the surface), forming fluidal peperite by a process of sediment fluidisation where magma replaces wet sediment and cools slowly enough to prevent the magma fracturing brittly. Formation of fluidal peperite may have been a precursor to the development of FCIs (Fuel Coolant Interactions) (Busby-Spera and White, 1987). The breccias may represent the products of FCIs and may be the erupted equivalents of the peperites, suggesting a possible genetic link between the two. The peperites may have given way to FCI eruptions due to a number of factors including the drying out of the sediments and/or an increase in the volume of intruded magma below the subsidence structure which may have resulted in a more explosive interaction between sediment and magma. Phreatic activity fragmented and erupted the Clarens Formation sandstone, and stream flows reworked the angular sandstone fragments, pisoliths and sand grains into channelised deposits. With an increase in magmatic activity below the subsidence structure, phreatic activity became phreatomagmatic. The wet, partly consolidated Clarens Formation, and underlying, fully consolidated Elliot Formation sediments were erupted and fragmented. Clasts and individual grains of these sediments were redeposited with juvenile and non-juvenile basaltic material probably by a combination of back fall, where clasts erupted into the air fell directly back into the structure, and backflow where material was erupted out of the structure, but immediately flowed back in as lahars. This material formed the lower volcaniclastic breccia. A fault plane is identified along the southwestern margin of the subsidence structure, and is believed to continue up the western margin to the northwestern corner. A large dolerite body has intruded along the inferred fault plane on the western margin of the structure, and may be related to the formation of the lower volcaniclastic breccia, either directly through fluidisation of wet sediment during its intrusion, or as a dyke extending upwards from a network of sill-like intrusions below the subsidence structure. Geochemical analysis of the Drakensberg basalt lava flows by Mitchell (1980) and Masokwane (1997) revealed four distinct basalt types; the Moshesh's Ford, the Tafelkop, the Roodehoek, and the Vaalkop basalts. Basalt clasts sampled from the lower volcaniclastic breccia were shown to belong to the Moshesh's Ford basalt type which does not outcrop in situ within the subsidence structure. This implies that the Moshesh's Ford basalts were emplaced prior to the formation of the lower volcaniclastic breccia, and may have acted as a "cap-rock" over the system, allowing pressure from the vaporised fluids, heated by intruding basalt, to build up. The Moshesh's Ford basalt type was erupted prior to the resultant phreatomagmatic events forming the lower volcaniclastic breccia.
- Full Text:
- Date Issued: 2000
Doole
- Fatou Laobe (performer, composer), Mareme Ndiaye, Kouna Sow, Aissata Sow, Law Kouyate (chorus), Mbeya Samb (bass guitar), Assana Aldara (guitar), Azizi Diallo (piano), Beydi Thior (pianos), Law Kouyate (kora), Amadou Athiel (xalam), Moussa Gningue (drums), Elle Mbaye, Mbaye Thiam (sabar), Jololi
- Authors: Fatou Laobe (performer, composer) , Mareme Ndiaye, Kouna Sow, Aissata Sow, Law Kouyate (chorus) , Mbeya Samb (bass guitar) , Assana Aldara (guitar) , Azizi Diallo (piano) , Beydi Thior (pianos) , Law Kouyate (kora) , Amadou Athiel (xalam) , Moussa Gningue (drums) , Elle Mbaye, Mbaye Thiam (sabar) , Jololi
- Date: 2000
- 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/10962/127667 , vital:36032 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDCO6-01
- Description: Senegalese band featuring solo and chorus singers accampanied by kora, xalam, sabar, guitar and piano
- Full Text: false
- Date Issued: 2000
- Authors: Fatou Laobe (performer, composer) , Mareme Ndiaye, Kouna Sow, Aissata Sow, Law Kouyate (chorus) , Mbeya Samb (bass guitar) , Assana Aldara (guitar) , Azizi Diallo (piano) , Beydi Thior (pianos) , Law Kouyate (kora) , Amadou Athiel (xalam) , Moussa Gningue (drums) , Elle Mbaye, Mbaye Thiam (sabar) , Jololi
- Date: 2000
- 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/10962/127667 , vital:36032 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDCO6-01
- Description: Senegalese band featuring solo and chorus singers accampanied by kora, xalam, sabar, guitar and piano
- Full Text: false
- Date Issued: 2000
Ligueyante
- Musa Afia Ngum (writer, composer, arranger, lead vocal), Mbaye Gaye, Amie Cham (backing vocal), Sara Ba (flute), Bakery Cissokho (kora), Alioun Manneh (balafon), Pape Ndiaye Guewell (percussion), Malick Soce (xalam), Wole Rendall
- Authors: Musa Afia Ngum (writer, composer, arranger, lead vocal) , Mbaye Gaye, Amie Cham (backing vocal) , Sara Ba (flute) , Bakery Cissokho (kora) , Alioun Manneh (balafon) , Pape Ndiaye Guewell (percussion) , Malick Soce (xalam) , Wole Rendall
- Date: 2000
- Subjects: Folk 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/10962/128846 , vital:36173 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC15-04
- Description: The songs are mostly about the ancient kingdoms of the Senegambia region and its landscapes, community belonging and values, and he favoured reuniting the Gambia with Senegal
- Full Text: false
- Date Issued: 2000
- Authors: Musa Afia Ngum (writer, composer, arranger, lead vocal) , Mbaye Gaye, Amie Cham (backing vocal) , Sara Ba (flute) , Bakery Cissokho (kora) , Alioun Manneh (balafon) , Pape Ndiaye Guewell (percussion) , Malick Soce (xalam) , Wole Rendall
- Date: 2000
- Subjects: Folk 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/10962/128846 , vital:36173 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC15-04
- Description: The songs are mostly about the ancient kingdoms of the Senegambia region and its landscapes, community belonging and values, and he favoured reuniting the Gambia with Senegal
- Full Text: false
- Date Issued: 2000
Possible crosstalk between signal transduction pathways in the induction of differentiation in HT-29 cells
- Authors: Jamie, Hajierah
- Date: 2000
- Subjects: Cellular signal transduction , Cell differentiation
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:11096 , http://hdl.handle.net/10948/d1019684
- Description: The investigation into the mechanisms by which compounds such as butyrate induce differentiation in HT-29 cells, is lacking. The colonic carcinoma cell line, HT-29, undergoes differentiation induction in the presence of butyrate and acetoacetate. The Caco-2 cell line spontaneously differentiates on contact inhibition. In this study, a signal transduction pathway involving ATP, cAMP, Ca2+ and the transcriptional factor CREB was investigated following suggestions that the energy state of the cell and diffferentiation are linked. The activity of the MAP kinase cascade, including possible crosstalk that may exist between these pathways was determined. The HT-29 cells were exposed to 5 mM acetoacetate, butyrate, DMSO and propionate. The results of this differentiation induction were compared to Caco-2 and HeLa cells, which are cervical carcinoma cells. It was found that ATP levels are decreased on differentiation induction in HT-29 cells, which, in turn affected the cAMP concentrations. Theoretically, the inducers do not have any effect on PDE 4 activity, and may facilitate the interaction between cAMP and PKA. Influx of Ca2+ into the cells was inhibited to a degree by the inducers, which was possibly overcome by crosstalk between the cAMP and Ca2+ pathways. CREB activation, lineage-specific gene expression, ERK activity and c-myc expression were all dependent on both the inducers used and the cell-type. PKA played a major role in CREB activation in acetoacetate- and butyrate -induced HT-29, Caco-2 and HeLa cells, while a2+/Calmodulin-dependent kinases I/IV may have a secondary role. Alkaline phosphatase expression in HeLa cells was independent of CREB. Evidence that crosstalk between the MAP kinase cascade and the REBactivation pathways exist, was illustrated by increased CREB activation on ERK inhibition in acetoacetate- and butyrate-induced HT-29 and HeLa cells. Also, the role that ERK played in the cells differed with inducer and cell-type. The dependence of cmyc expression on c-jun and c-fos, appeared to be differentiation induction- and celltype specific. Results from this study indicate the potential use of acetoacetate and butyrate as anti-cancer compounds.
- Full Text:
- Date Issued: 2000
- Authors: Jamie, Hajierah
- Date: 2000
- Subjects: Cellular signal transduction , Cell differentiation
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:11096 , http://hdl.handle.net/10948/d1019684
- Description: The investigation into the mechanisms by which compounds such as butyrate induce differentiation in HT-29 cells, is lacking. The colonic carcinoma cell line, HT-29, undergoes differentiation induction in the presence of butyrate and acetoacetate. The Caco-2 cell line spontaneously differentiates on contact inhibition. In this study, a signal transduction pathway involving ATP, cAMP, Ca2+ and the transcriptional factor CREB was investigated following suggestions that the energy state of the cell and diffferentiation are linked. The activity of the MAP kinase cascade, including possible crosstalk that may exist between these pathways was determined. The HT-29 cells were exposed to 5 mM acetoacetate, butyrate, DMSO and propionate. The results of this differentiation induction were compared to Caco-2 and HeLa cells, which are cervical carcinoma cells. It was found that ATP levels are decreased on differentiation induction in HT-29 cells, which, in turn affected the cAMP concentrations. Theoretically, the inducers do not have any effect on PDE 4 activity, and may facilitate the interaction between cAMP and PKA. Influx of Ca2+ into the cells was inhibited to a degree by the inducers, which was possibly overcome by crosstalk between the cAMP and Ca2+ pathways. CREB activation, lineage-specific gene expression, ERK activity and c-myc expression were all dependent on both the inducers used and the cell-type. PKA played a major role in CREB activation in acetoacetate- and butyrate -induced HT-29, Caco-2 and HeLa cells, while a2+/Calmodulin-dependent kinases I/IV may have a secondary role. Alkaline phosphatase expression in HeLa cells was independent of CREB. Evidence that crosstalk between the MAP kinase cascade and the REBactivation pathways exist, was illustrated by increased CREB activation on ERK inhibition in acetoacetate- and butyrate-induced HT-29 and HeLa cells. Also, the role that ERK played in the cells differed with inducer and cell-type. The dependence of cmyc expression on c-jun and c-fos, appeared to be differentiation induction- and celltype specific. Results from this study indicate the potential use of acetoacetate and butyrate as anti-cancer compounds.
- Full Text:
- Date Issued: 2000
Incorporating the spatial component of fisheries data into stock assessment models
- Authors: Booth, Anthony J
- Date: 2000
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124800 , vital:35698 , https://doi.10.1006/jmsc.2000.0816
- Description: Fisheries-dependent and independent data have a strong spatial component. These data are also multi-dimensional, making them difficult to visualize and analyze, prompting the use of spatial analysis to facilitate an understanding of their relationships. One aspect of fisheries data that is often ignored is the distribution and abundance of a particular resource and the fishing patterns of its harvesting fisheries. In order to improve management advice, stock assessors need to incorporate the spatial component of these data into an existing assessment framework. This paper presents a three-dimensional visualization of the age-structure and fishery dependent and independent data associated with the sparid fish Pterogymnus laniarius on the Agulhas Bank, South Africa. A spatially-referenced spawner biomass per-recruit model is developed to illustrate the applicability of incorporating spatially referenced information in providing management advice. The model provided evidence that, even on a spatial scale, fishing mortality is significantly correlated to fishing effort. Areas of high levels of spawner biomass are noted, all of which corresponded to those geographic areas with a combination of low fishing effort and high adult biomass.
- Full Text:
- Date Issued: 2000
- Authors: Booth, Anthony J
- Date: 2000
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/124800 , vital:35698 , https://doi.10.1006/jmsc.2000.0816
- Description: Fisheries-dependent and independent data have a strong spatial component. These data are also multi-dimensional, making them difficult to visualize and analyze, prompting the use of spatial analysis to facilitate an understanding of their relationships. One aspect of fisheries data that is often ignored is the distribution and abundance of a particular resource and the fishing patterns of its harvesting fisheries. In order to improve management advice, stock assessors need to incorporate the spatial component of these data into an existing assessment framework. This paper presents a three-dimensional visualization of the age-structure and fishery dependent and independent data associated with the sparid fish Pterogymnus laniarius on the Agulhas Bank, South Africa. A spatially-referenced spawner biomass per-recruit model is developed to illustrate the applicability of incorporating spatially referenced information in providing management advice. The model provided evidence that, even on a spatial scale, fishing mortality is significantly correlated to fishing effort. Areas of high levels of spawner biomass are noted, all of which corresponded to those geographic areas with a combination of low fishing effort and high adult biomass.
- Full Text:
- Date Issued: 2000
Brothers go solo on piano
- Authors: Thomas, Cornelius
- Date: 2000
- Subjects: Schilder, Tony Schilder, Ebrahim Kalil Jazz musicians
- Type: article
- Identifier: http://hdl.handle.net/10962/32775 , vital:24079 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , MS 20 018
- Description: Photocopied article from the newspaper The Daily Dispatch about two brothers who are Jazz musicians
- Full Text:
- Date Issued: 2000
- Authors: Thomas, Cornelius
- Date: 2000
- Subjects: Schilder, Tony Schilder, Ebrahim Kalil Jazz musicians
- Type: article
- Identifier: http://hdl.handle.net/10962/32775 , vital:24079 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , MS 20 018
- Description: Photocopied article from the newspaper The Daily Dispatch about two brothers who are Jazz musicians
- Full Text:
- Date Issued: 2000
Satchmo and 20th century jazz
- Authors: Thomas, Cornelius
- Date: 2000
- Subjects: Standard Bank Jazz Festival -- South Africa Tshomela, Don Armstrong, Louis Jazz musicians -- South Africa
- Type: article
- Identifier: http://hdl.handle.net/10962/32906 , vital:24093 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , MS 20 020
- Description: Photocopied article from the newspaper The Daily Dispatch about Jazz musicians at the Standard Bank Jazz Festival in Grahamstown
- Full Text:
- Date Issued: 2000
- Authors: Thomas, Cornelius
- Date: 2000
- Subjects: Standard Bank Jazz Festival -- South Africa Tshomela, Don Armstrong, Louis Jazz musicians -- South Africa
- Type: article
- Identifier: http://hdl.handle.net/10962/32906 , vital:24093 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017. , MS 20 020
- Description: Photocopied article from the newspaper The Daily Dispatch about Jazz musicians at the Standard Bank Jazz Festival in Grahamstown
- Full Text:
- Date Issued: 2000
Kounkan
- Adama Drame (performer, arranger, composer, djembe, tama, doumdoum, chekere, voice, harmonica), Yacouba Kone (djembe), Bakari Doumbia (zin-zin), Mamadou Diabate ( balafon), Djesou Mory Kante (accoustic and electric guitar), Adjara Cisse (lead vocal), Oulare, Mariame Sylla, Tagaly (chorus), Adama Troare (accoustic guitar), Augustin Lompo (bass), Bassirou Sanou (flute), Tinminu Adio (tama), Brass: Andre Laourou, Dadie, Franck Desamin, Dramane Kienou (djembe accompaniment), Lamine Soumano (kora), Seydoni Production B.F.
- Authors: Adama Drame (performer, arranger, composer, djembe, tama, doumdoum, chekere, voice, harmonica) , Yacouba Kone (djembe) , Bakari Doumbia (zin-zin) , Mamadou Diabate ( balafon) , Djesou Mory Kante (accoustic and electric guitar) , Adjara Cisse (lead vocal) , Oulare, Mariame Sylla, Tagaly (chorus) , Adama Troare (accoustic guitar) , Augustin Lompo (bass) , Bassirou Sanou (flute) , Tinminu Adio (tama) , Brass: Andre Laourou, Dadie, Franck Desamin , Dramane Kienou (djembe accompaniment) , Lamine Soumano (kora) , Seydoni Production B.F.
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Burkina Faso Ouagadougou f-uv
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/128734 , vital:36147 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC14-04
- Description: Music from Burkino Faso played and sung in the griot style commenting on historical and contemporary events
- Full Text: false
- Date Issued: 2000
- Authors: Adama Drame (performer, arranger, composer, djembe, tama, doumdoum, chekere, voice, harmonica) , Yacouba Kone (djembe) , Bakari Doumbia (zin-zin) , Mamadou Diabate ( balafon) , Djesou Mory Kante (accoustic and electric guitar) , Adjara Cisse (lead vocal) , Oulare, Mariame Sylla, Tagaly (chorus) , Adama Troare (accoustic guitar) , Augustin Lompo (bass) , Bassirou Sanou (flute) , Tinminu Adio (tama) , Brass: Andre Laourou, Dadie, Franck Desamin , Dramane Kienou (djembe accompaniment) , Lamine Soumano (kora) , Seydoni Production B.F.
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Burkina Faso Ouagadougou f-uv
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/128734 , vital:36147 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC14-04
- Description: Music from Burkino Faso played and sung in the griot style commenting on historical and contemporary events
- Full Text: false
- Date Issued: 2000
A Mbo Da Mondjo
- Priscilia Ngando (lead vocal), Mevio-Mayo, Dany Mouanga, Mouasso (rhythm guitars), Aubin Sandjo, Scorpionkabambay, Mouche Bass (bass guitar), Dany Mouanga, Eric Sefu (solo guitar), Aubin Sandjo, Paul Balong (keyboard), Abel Massock, Fabo Claude, Nono (chorus), Moussa Haissam,Penda Dalle (composers), Aubin Sandjo (drum, percussion, keyboard), Alhadji Mallam Issa (talking drum), Moussa Haissam
- Authors: Priscilia Ngando (lead vocal) , Mevio-Mayo, Dany Mouanga, Mouasso (rhythm guitars) , Aubin Sandjo, Scorpionkabambay, Mouche Bass (bass guitar) , Dany Mouanga, Eric Sefu (solo guitar) , Aubin Sandjo, Paul Balong (keyboard) , Abel Massock, Fabo Claude, Nono (chorus) , Moussa Haissam,Penda Dalle (composers) , Aubin Sandjo (drum, percussion, keyboard) , Alhadji Mallam Issa (talking drum) , Moussa Haissam
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Cameroon Yaounde f-cm
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/130882 , vital:36494 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC47-08
- Description: Popular songs from Cameroon, featuring female vocal accompanied by keyboard, chorus, guitar, percussion and talking drum, playing West and Central African rhythms
- Full Text: false
- Date Issued: 2000
- Authors: Priscilia Ngando (lead vocal) , Mevio-Mayo, Dany Mouanga, Mouasso (rhythm guitars) , Aubin Sandjo, Scorpionkabambay, Mouche Bass (bass guitar) , Dany Mouanga, Eric Sefu (solo guitar) , Aubin Sandjo, Paul Balong (keyboard) , Abel Massock, Fabo Claude, Nono (chorus) , Moussa Haissam,Penda Dalle (composers) , Aubin Sandjo (drum, percussion, keyboard) , Alhadji Mallam Issa (talking drum) , Moussa Haissam
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Cameroon Yaounde f-cm
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/130882 , vital:36494 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC47-08
- Description: Popular songs from Cameroon, featuring female vocal accompanied by keyboard, chorus, guitar, percussion and talking drum, playing West and Central African rhythms
- Full Text: false
- Date Issued: 2000
Nyau masquerade performance : shifting the imperial gaze
- Authors: Guhrs, Tamara
- Date: 2000
- Subjects: Masquerades -- Malawi , Masquerades -- Zambia , Malawi -- Religion , Zambia -- Religion , Masks, Chewa , Chewa (African people) -- Rites and ceremonies , Nyanja (African people) -- Rites and ceremonies , Secret societies -- Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2140 , http://hdl.handle.net/10962/d1002372 , Masquerades -- Malawi , Masquerades -- Zambia , Malawi -- Religion , Zambia -- Religion , Masks, Chewa , Chewa (African people) -- Rites and ceremonies , Nyanja (African people) -- Rites and ceremonies , Secret societies -- Africa
- Description: Nyau Masquerades have been studied by missionaries, anthropologists and religious specialists, but have seldom been documented by theatre and performance specialists. This dissertation argues for the acceptance of Ny au performance as a contemporary world theatre form rooted in tradition. Charting the uneasy relationship between the Nyau and those who have sought to record their performances, the author delineates a vivid dramaturgy of this art form. In doing so, the boundaries of what define theatre as it has traditionally been understood in dominant discourses are made more fluid. Nyau performances have been affected by Colonial processes in varied ways. They were banned by the former government of Northern Rhodesia and severely censored by Catholic Mission teachings in the former Nyasaland. Other forms of vilification have been more subtle. Information about performance in Africa has often been collected and arranged in ways which limit the understanding of these genres. Images of Africa which cluster around the notion of the 'Primitive Other' have enabled a representation of Ny au masking as a superstitious and outdated practice with no relevance for contemporary Africa. This work calls for a new examination of the Nyau, through the lens of local discourse as well as contemporary global understandings of performance. Chapter One examines the issue of primitivism and the ways in which Africa has historically been posited as the exotic Other to Europe. Chapter Two examines the Nyau ih terms of specific dramaturgical elements, adjusting previous misconceptions surrounding the theatr~ forms of Chewa and Nyanja people. Chapter Three is devoted to a discussion of space in ritual theatre and Nyau performance, while Chapter Four explores masking and questions of transformation and liminality. In conclusion, it is seen that the use of the mask is a metaphor for the suspension of rigid boundaries separating subject/object, self/other, ritual/theatre, a suspension which needs to take place before an enriched understanding of performance in Africa can be reached.
- Full Text:
- Date Issued: 2000
- Authors: Guhrs, Tamara
- Date: 2000
- Subjects: Masquerades -- Malawi , Masquerades -- Zambia , Malawi -- Religion , Zambia -- Religion , Masks, Chewa , Chewa (African people) -- Rites and ceremonies , Nyanja (African people) -- Rites and ceremonies , Secret societies -- Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2140 , http://hdl.handle.net/10962/d1002372 , Masquerades -- Malawi , Masquerades -- Zambia , Malawi -- Religion , Zambia -- Religion , Masks, Chewa , Chewa (African people) -- Rites and ceremonies , Nyanja (African people) -- Rites and ceremonies , Secret societies -- Africa
- Description: Nyau Masquerades have been studied by missionaries, anthropologists and religious specialists, but have seldom been documented by theatre and performance specialists. This dissertation argues for the acceptance of Ny au performance as a contemporary world theatre form rooted in tradition. Charting the uneasy relationship between the Nyau and those who have sought to record their performances, the author delineates a vivid dramaturgy of this art form. In doing so, the boundaries of what define theatre as it has traditionally been understood in dominant discourses are made more fluid. Nyau performances have been affected by Colonial processes in varied ways. They were banned by the former government of Northern Rhodesia and severely censored by Catholic Mission teachings in the former Nyasaland. Other forms of vilification have been more subtle. Information about performance in Africa has often been collected and arranged in ways which limit the understanding of these genres. Images of Africa which cluster around the notion of the 'Primitive Other' have enabled a representation of Ny au masking as a superstitious and outdated practice with no relevance for contemporary Africa. This work calls for a new examination of the Nyau, through the lens of local discourse as well as contemporary global understandings of performance. Chapter One examines the issue of primitivism and the ways in which Africa has historically been posited as the exotic Other to Europe. Chapter Two examines the Nyau ih terms of specific dramaturgical elements, adjusting previous misconceptions surrounding the theatr~ forms of Chewa and Nyanja people. Chapter Three is devoted to a discussion of space in ritual theatre and Nyau performance, while Chapter Four explores masking and questions of transformation and liminality. In conclusion, it is seen that the use of the mask is a metaphor for the suspension of rigid boundaries separating subject/object, self/other, ritual/theatre, a suspension which needs to take place before an enriched understanding of performance in Africa can be reached.
- Full Text:
- Date Issued: 2000
Limanya
- Founy Faya (author, composer, lead vocal), Marcelin Yace (flute), Evan's Yace (guitar, arrangement), Jojo (bass), Kone Ibrahim, Founy Faya (percussion), Astride, Oliza, Hariton T Cheky (chorus), Showbiz
- Authors: Founy Faya (author, composer, lead vocal) , Marcelin Yace (flute) , Evan's Yace (guitar, arrangement) , Jojo (bass) , Kone Ibrahim, Founy Faya (percussion) , Astride, Oliza, Hariton T Cheky (chorus) , Showbiz
- Date: 2000
- Subjects: Popular music , Reggae music , Africa Cote d'Ivoire Abidjan f-iv
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129659 , vital:36317 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC31-04
- Description: Reggae music from Cote d'Ivoire's Burkinabe's diaspora
- Full Text: false
- Date Issued: 2000
- Authors: Founy Faya (author, composer, lead vocal) , Marcelin Yace (flute) , Evan's Yace (guitar, arrangement) , Jojo (bass) , Kone Ibrahim, Founy Faya (percussion) , Astride, Oliza, Hariton T Cheky (chorus) , Showbiz
- Date: 2000
- Subjects: Popular music , Reggae music , Africa Cote d'Ivoire Abidjan f-iv
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129659 , vital:36317 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC31-04
- Description: Reggae music from Cote d'Ivoire's Burkinabe's diaspora
- Full Text: false
- Date Issued: 2000
Therapists' constructs of healthy functioning as aspirational goal in transformative psychotherapy
- Authors: Steyn, Reinette
- Date: 2000
- Subjects: Psychotherapy , Mental health -- South Africa , Mental health
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3064 , http://hdl.handle.net/10962/d1002573 , Psychotherapy , Mental health -- South Africa , Mental health
- Description: This dissertation reviews the ways in which psychotherapists working in relatively long-term 'transformational' therapies construct the outcome goals of their interventions. It is generally accepted that a therapist's beliefs about what constitutes mental health will influence the client, and will therefore facilitate a certain outcome accordingly. A problem in a long-term, 'non-directive' therapy is that the eventual outcome is not always visible in the interim development of the client or in the business of individual sessions. Without a clearly defined 'plan' or 'goal' there is a real danger of the intervention having opposite results to what would have been desirable, or no noticeably beneficial results, both of which can be an abuse of the client's investment and trust in the process. The absence of clearly constructed goals makes it difficult to assess efficacy of a therapeutic method used to attain an improved state of mental health that will be lasting, i.e. a positive 'transformation'; it also problematises comparisons across orientations. The identification of explicit goals is of special importance in a developing 'third-world' community like South Africa, where western ('European') concepts of mental health are being offered as an alternative to so-called 'indigenous healing' and where different cultural communities may have different expectations, needs or demands of their members 'in health'. Individual-based therapeutic orientations included in the research were psychoanalysis and psychoanalytic therapies, including object-relational therapies with various emphases and self psychology, as well as transformative types of hypnosis, Gestalt therapy, client-centred therapy and transactional analysis. Twenty of the semi-structured interviews with 52 therapists working in one or more of these areas were selected for construct analysis. Through analysis of the constructs of mental health as aspirational goal that emerged in therapists' talking about their experience of the process and the consequences of therapy observed in their patients, it appeared that there are generalisable constructs across various orientations in the transformative therapies. It is hoped that these constructs may serve as a foundation for further research in the problem areas indicated, but also that therapists working in the field may use this research not only as a basis for self-evaluation, but for adding to the constructs from their own experience, to the further enrichment of the whole field of work.
- Full Text:
- Date Issued: 2000
- Authors: Steyn, Reinette
- Date: 2000
- Subjects: Psychotherapy , Mental health -- South Africa , Mental health
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3064 , http://hdl.handle.net/10962/d1002573 , Psychotherapy , Mental health -- South Africa , Mental health
- Description: This dissertation reviews the ways in which psychotherapists working in relatively long-term 'transformational' therapies construct the outcome goals of their interventions. It is generally accepted that a therapist's beliefs about what constitutes mental health will influence the client, and will therefore facilitate a certain outcome accordingly. A problem in a long-term, 'non-directive' therapy is that the eventual outcome is not always visible in the interim development of the client or in the business of individual sessions. Without a clearly defined 'plan' or 'goal' there is a real danger of the intervention having opposite results to what would have been desirable, or no noticeably beneficial results, both of which can be an abuse of the client's investment and trust in the process. The absence of clearly constructed goals makes it difficult to assess efficacy of a therapeutic method used to attain an improved state of mental health that will be lasting, i.e. a positive 'transformation'; it also problematises comparisons across orientations. The identification of explicit goals is of special importance in a developing 'third-world' community like South Africa, where western ('European') concepts of mental health are being offered as an alternative to so-called 'indigenous healing' and where different cultural communities may have different expectations, needs or demands of their members 'in health'. Individual-based therapeutic orientations included in the research were psychoanalysis and psychoanalytic therapies, including object-relational therapies with various emphases and self psychology, as well as transformative types of hypnosis, Gestalt therapy, client-centred therapy and transactional analysis. Twenty of the semi-structured interviews with 52 therapists working in one or more of these areas were selected for construct analysis. Through analysis of the constructs of mental health as aspirational goal that emerged in therapists' talking about their experience of the process and the consequences of therapy observed in their patients, it appeared that there are generalisable constructs across various orientations in the transformative therapies. It is hoped that these constructs may serve as a foundation for further research in the problem areas indicated, but also that therapists working in the field may use this research not only as a basis for self-evaluation, but for adding to the constructs from their own experience, to the further enrichment of the whole field of work.
- Full Text:
- Date Issued: 2000
Aspects of the ecology and reproductive biology of the limpet, Helcion pruinosus (Gastropoda : prosobranchia)
- Authors: Henninger, Tony Oskar
- Date: 2000
- Subjects: Prosobranchia , Limpets -- Reproduction , Limpets -- Ecology , Prosobranchia -- Ecology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5641 , http://hdl.handle.net/10962/d1005323 , Prosobranchia , Limpets -- Reproduction , Limpets -- Ecology , Prosobranchia -- Ecology
- Description: Helcion pruinosus, the rayed limpet, is found in the midshore region of the intertidal zone, (i.e. the Balanoid zone) of rocky shores, from Saldanha Bay to Sodwana Bay along the coast of South Africa. At Gonubie (32°57'S/25°01'E) this species of limpet was found under boulders, (when not feeding), and could reach average densities of 85/ m². The limpets prefer smooth boulders, avoiding those encrusted by coralline algae or boulders with a rough texture. There was no habitat segregation between adult and juvenile H. pruinosus, i.e. there was no sign of up-shore migration by larger individuals. Males out-numbered females by, on average 1.4 : 1, which was a similar sex ratio to that of the congeneric species, H. pectunculus (Gray, 996). Unlike H. pectunculus, there were no differences in shell lengths between males and females (p = 0.946 at Gonubie, south-east coast and p = 0.961 at Kommetjie, south-west coast; t-test). Shell height could also not be used as a criterion to differentiate between the sexes. The average maximum shell length of H. pruinosus at Gonubie and Kommetjie was 25 mm, but the maximum shell lengths found were 30 mm, (one individual in each case), on both the southeast coast and west coast. Growth occurred most rapidly in the first year of life, with individuals reaching 15 mm after 1 year. In the second year limpet growth slowed to only 7 mm. Sexual maturity was reached at a shell length of between 11 to 14 mm (at an age of 8 months to 1 year). The life-span of H. pruinosus was determined at 2.55 years on the south-east coast and 2.9 years on the south-west coast. Micro-growth bands were produced tidally. Growth occurred allometrically, i.e. shell length increased at a faster rate than shell height. The limpets foraged during low tide, at night, presumably feeding on epilithic algae on the boulders. A second smaller peak of limpet activity was often recorded during the day, when low tide coincided with dawn). More limpets (up to ten times more) were active at spring tides compared to neap tides. Limpet activity was greatest during the spring tides of autumn. During all seasons limpet activity peaked 30 minutes before low water, after which numbers decreased rapidly. All limpets had retreated beneath the boulders before being covered by the flooding tide. It was concluded that the limpets were responding to both endogenous and exogenous cues, but the actual stimulus for retreat could not be determined. The limpets did not return to a fixed scar nor did they return rigidly to a home site. H. pruinosus was found to be gonochoristic. Sexes could be separated, on dissection, according to the colour of their gonads (males had white gonads, whilst that of the females was olive-green). Gonads were present throughout the year in most individuals, i.e. totally spent animals were never observed. Reproductive seasonality was similar in west coast and south-east coast animals. The gonad indices of the west coast limpets were higher, (maximum of 35%), compared to that on the southeast coast, (25%). The animals were probably trickle spawners, with some individuals liberating gametes throughout the year. There was however synchrony in gametogenesis between male and female limpets on both the west coast and south-east coast lines. Gonad indices peaked in the summer months (October to December) with a second minor peak in April/May. These peaks occurred before the release of the gametes in spawning events. The gonad index was lowest in winter, (July). The ovaries were full of mature eggs (oocytes having a diameter of 200 to 250 ~) prior to spawning. The acinal wall thickness had been decreasing prior to spawning. After spawning there was an increase in previtellogenic eggs « 100 μm) in females, and an increase in the acinal wall thickness to indicate spermatogenesis. The two populations are subjected to different environmental conditions and the actual cue for stimulating the release of gametes could not be determined. Finally, a table of differences between H pruinosus and its sister species, H pectunculus was created to show the life-style of H pruinosus.
- Full Text:
- Date Issued: 2000
- Authors: Henninger, Tony Oskar
- Date: 2000
- Subjects: Prosobranchia , Limpets -- Reproduction , Limpets -- Ecology , Prosobranchia -- Ecology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5641 , http://hdl.handle.net/10962/d1005323 , Prosobranchia , Limpets -- Reproduction , Limpets -- Ecology , Prosobranchia -- Ecology
- Description: Helcion pruinosus, the rayed limpet, is found in the midshore region of the intertidal zone, (i.e. the Balanoid zone) of rocky shores, from Saldanha Bay to Sodwana Bay along the coast of South Africa. At Gonubie (32°57'S/25°01'E) this species of limpet was found under boulders, (when not feeding), and could reach average densities of 85/ m². The limpets prefer smooth boulders, avoiding those encrusted by coralline algae or boulders with a rough texture. There was no habitat segregation between adult and juvenile H. pruinosus, i.e. there was no sign of up-shore migration by larger individuals. Males out-numbered females by, on average 1.4 : 1, which was a similar sex ratio to that of the congeneric species, H. pectunculus (Gray, 996). Unlike H. pectunculus, there were no differences in shell lengths between males and females (p = 0.946 at Gonubie, south-east coast and p = 0.961 at Kommetjie, south-west coast; t-test). Shell height could also not be used as a criterion to differentiate between the sexes. The average maximum shell length of H. pruinosus at Gonubie and Kommetjie was 25 mm, but the maximum shell lengths found were 30 mm, (one individual in each case), on both the southeast coast and west coast. Growth occurred most rapidly in the first year of life, with individuals reaching 15 mm after 1 year. In the second year limpet growth slowed to only 7 mm. Sexual maturity was reached at a shell length of between 11 to 14 mm (at an age of 8 months to 1 year). The life-span of H. pruinosus was determined at 2.55 years on the south-east coast and 2.9 years on the south-west coast. Micro-growth bands were produced tidally. Growth occurred allometrically, i.e. shell length increased at a faster rate than shell height. The limpets foraged during low tide, at night, presumably feeding on epilithic algae on the boulders. A second smaller peak of limpet activity was often recorded during the day, when low tide coincided with dawn). More limpets (up to ten times more) were active at spring tides compared to neap tides. Limpet activity was greatest during the spring tides of autumn. During all seasons limpet activity peaked 30 minutes before low water, after which numbers decreased rapidly. All limpets had retreated beneath the boulders before being covered by the flooding tide. It was concluded that the limpets were responding to both endogenous and exogenous cues, but the actual stimulus for retreat could not be determined. The limpets did not return to a fixed scar nor did they return rigidly to a home site. H. pruinosus was found to be gonochoristic. Sexes could be separated, on dissection, according to the colour of their gonads (males had white gonads, whilst that of the females was olive-green). Gonads were present throughout the year in most individuals, i.e. totally spent animals were never observed. Reproductive seasonality was similar in west coast and south-east coast animals. The gonad indices of the west coast limpets were higher, (maximum of 35%), compared to that on the southeast coast, (25%). The animals were probably trickle spawners, with some individuals liberating gametes throughout the year. There was however synchrony in gametogenesis between male and female limpets on both the west coast and south-east coast lines. Gonad indices peaked in the summer months (October to December) with a second minor peak in April/May. These peaks occurred before the release of the gametes in spawning events. The gonad index was lowest in winter, (July). The ovaries were full of mature eggs (oocytes having a diameter of 200 to 250 ~) prior to spawning. The acinal wall thickness had been decreasing prior to spawning. After spawning there was an increase in previtellogenic eggs « 100 μm) in females, and an increase in the acinal wall thickness to indicate spermatogenesis. The two populations are subjected to different environmental conditions and the actual cue for stimulating the release of gametes could not be determined. Finally, a table of differences between H pruinosus and its sister species, H pectunculus was created to show the life-style of H pruinosus.
- Full Text:
- Date Issued: 2000
Female school principals=perceptions of leadership in a male dominated education environment
- Authors: Mwingi, Mweru P
- Date: 2000
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/326 , vital:19948
- Description: Many well-known studies on leadership have ignored the perspective of women yet bear an emphasis on the importance of portraying leadership in its entirety. This would mean that all leadership perspectives are included and that leaders are allowed to speak for themselves and about themselves. It is this connection I have sought to establish how women perceive leadership by relating the experiences of four women in school principalship. I have used a factual questionnaire to establish the background of each one but, it is the in-depth interviews that yield the leadership perceptions. Borrowing from phenomenological procedures, the leadership experiences are related as Natural Meaning Units (NMUS) whereby all prior knowledge and possible bias are bracketed out. Reinforced by their journal entries, it is only the voice of the women that is heard. My study reinforces the observation of researchers and feminist scholars that women leaders are not only marginalised but also viewed from a perspective that is not their own. From the study, however, the one element about leadership that emerges as unique is the functioning of transformational leadership elements among women leaders in educational set-ups that are inherently traditional, bureaucratic and hierarchical. This is significant because there is an indication that women leaders are inclined to transformational leadership because it favours their feminine qualities. There is also evidence that school principals can embrace leadership diversity and finally, that leadership and the structures of leadership operation are not developed from without but from within the person of the leader and this is an incorporation of their vision and beliefs. In the context of South Africa, this study should be of potential significance because of the change that is taking place in the development and training of school principals.
- Full Text:
- Date Issued: 2000
- Authors: Mwingi, Mweru P
- Date: 2000
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: http://hdl.handle.net/10962/326 , vital:19948
- Description: Many well-known studies on leadership have ignored the perspective of women yet bear an emphasis on the importance of portraying leadership in its entirety. This would mean that all leadership perspectives are included and that leaders are allowed to speak for themselves and about themselves. It is this connection I have sought to establish how women perceive leadership by relating the experiences of four women in school principalship. I have used a factual questionnaire to establish the background of each one but, it is the in-depth interviews that yield the leadership perceptions. Borrowing from phenomenological procedures, the leadership experiences are related as Natural Meaning Units (NMUS) whereby all prior knowledge and possible bias are bracketed out. Reinforced by their journal entries, it is only the voice of the women that is heard. My study reinforces the observation of researchers and feminist scholars that women leaders are not only marginalised but also viewed from a perspective that is not their own. From the study, however, the one element about leadership that emerges as unique is the functioning of transformational leadership elements among women leaders in educational set-ups that are inherently traditional, bureaucratic and hierarchical. This is significant because there is an indication that women leaders are inclined to transformational leadership because it favours their feminine qualities. There is also evidence that school principals can embrace leadership diversity and finally, that leadership and the structures of leadership operation are not developed from without but from within the person of the leader and this is an incorporation of their vision and beliefs. In the context of South Africa, this study should be of potential significance because of the change that is taking place in the development and training of school principals.
- Full Text:
- Date Issued: 2000
La bal
- Malick Ly (composer, lead vocal, guitar solo), Daouda N'Diaye (chorus, drums, arrangement), Habib Niente (chorus, bass, orchestra leader), Pathe Dieng (chorus, percussion), Libasse Seye (keyboard), Studio 2000
- Authors: Malick Ly (composer, lead vocal, guitar solo) , Daouda N'Diaye (chorus, drums, arrangement) , Habib Niente (chorus, bass, orchestra leader) , Pathe Dieng (chorus, percussion) , Libasse Seye (keyboard) , Studio 2000
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129145 , vital:36222 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC19-02
- Description: Senegalese traditional rhythms and song fused with modern instruments and genres
- Full Text: false
- Date Issued: 2000
- Authors: Malick Ly (composer, lead vocal, guitar solo) , Daouda N'Diaye (chorus, drums, arrangement) , Habib Niente (chorus, bass, orchestra leader) , Pathe Dieng (chorus, percussion) , Libasse Seye (keyboard) , Studio 2000
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Senegal Dakar f-sg
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/129145 , vital:36222 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC19-02
- Description: Senegalese traditional rhythms and song fused with modern instruments and genres
- Full Text: false
- Date Issued: 2000
Zignon
- Gnaore Djimi (vocals, creator), Gnaore Djimi The Best (album title), Showbiz
- Authors: Gnaore Djimi (vocals, creator) , Gnaore Djimi The Best (album title) , Showbiz
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Cote d'Ivoire Abidjan f-iv
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/128917 , vital:36190 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC17-04
- Description: Ivorian popular song in the Polihet style that is based on the traditional sounds, gestures and heritage of Niamboua people who live in the southwest reagion of Cote d'Ivoire. Polihet is performed at funerals, baptisms,weddings with the themes of love, hate, death and peace
- Full Text: false
- Date Issued: 2000
- Authors: Gnaore Djimi (vocals, creator) , Gnaore Djimi The Best (album title) , Showbiz
- Date: 2000
- Subjects: Popular music , Popular music--Africa, West , Africa Cote d'Ivoire Abidjan f-iv
- Language: French
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/128917 , vital:36190 , International Library of African Music, Rhodes University, Grahamstown, South Africa , SDC17-04
- Description: Ivorian popular song in the Polihet style that is based on the traditional sounds, gestures and heritage of Niamboua people who live in the southwest reagion of Cote d'Ivoire. Polihet is performed at funerals, baptisms,weddings with the themes of love, hate, death and peace
- Full Text: false
- Date Issued: 2000
Social workers perceptions on unionisation and collective bargaining : an exploratory study of the central region of the Eastern Cape
- Authors: Dyakala, Tumeka
- Date: 2000
- Subjects: Social workers -- South Africa -- Eastern Cape -- Attitudes , Labor unions -- South Africa , Collective bargaining -- South Africa
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:695 , http://hdl.handle.net/10962/d1006405 , Social workers -- South Africa -- Eastern Cape -- Attitudes , Labor unions -- South Africa , Collective bargaining -- South Africa
- Description: This study explores primarily the views of social workers in the Central region of the Eastern Cape on unionisation and collective bargaining, and at a secondary level the views of their employers and of the trade unions organising social workers, regarding social workers' involvement and non-involvement in these processes. It examines the paradox of compatibility of professionalism and unionism. There are two schools of thought regarding compatibility of professionalism and unionisation one views these concepts as antagonistic whilst the other views these concepts as complementary. Some social workers have been reluctant to participate in trade unions in the past until recently. Reasons advanced for their recent accelerated involvement in trade unions are explored in this study. Social workers views on the Labour Relations Act 66 of 1995 as the source of the legal framework, within which trade unions and employers interact, through the process of collective bargaining are explored. Proposed alternative mechanisms to these processes as perceived by social workers are closely examined. Semi-structured, self administered questionnaires were distributed to social workers whilst semi-structured interviews were conducted with employer representatives and trade union officials. This helped the researcher to have a broader view of the situation. Findings point to a scenario of disunity of both employers and employees in the social work profession. The study is a pioneering effort in the Central region and sets a way forward for further exploration of this subject. It is hoped that this study will make a worthwhile contribution to the social work profession's industrial relations field
- Full Text:
- Date Issued: 2000
- Authors: Dyakala, Tumeka
- Date: 2000
- Subjects: Social workers -- South Africa -- Eastern Cape -- Attitudes , Labor unions -- South Africa , Collective bargaining -- South Africa
- Language: English
- Type: Thesis , Masters , MSocSc
- Identifier: vital:695 , http://hdl.handle.net/10962/d1006405 , Social workers -- South Africa -- Eastern Cape -- Attitudes , Labor unions -- South Africa , Collective bargaining -- South Africa
- Description: This study explores primarily the views of social workers in the Central region of the Eastern Cape on unionisation and collective bargaining, and at a secondary level the views of their employers and of the trade unions organising social workers, regarding social workers' involvement and non-involvement in these processes. It examines the paradox of compatibility of professionalism and unionism. There are two schools of thought regarding compatibility of professionalism and unionisation one views these concepts as antagonistic whilst the other views these concepts as complementary. Some social workers have been reluctant to participate in trade unions in the past until recently. Reasons advanced for their recent accelerated involvement in trade unions are explored in this study. Social workers views on the Labour Relations Act 66 of 1995 as the source of the legal framework, within which trade unions and employers interact, through the process of collective bargaining are explored. Proposed alternative mechanisms to these processes as perceived by social workers are closely examined. Semi-structured, self administered questionnaires were distributed to social workers whilst semi-structured interviews were conducted with employer representatives and trade union officials. This helped the researcher to have a broader view of the situation. Findings point to a scenario of disunity of both employers and employees in the social work profession. The study is a pioneering effort in the Central region and sets a way forward for further exploration of this subject. It is hoped that this study will make a worthwhile contribution to the social work profession's industrial relations field
- Full Text:
- Date Issued: 2000