Factors affecting the invasion of Pteronia incana (Blue bush) onto hillslopes in Ngqushwa (formerly Peddie) District, Eastern Cape
- Authors: Kakembo, Vincent
- Date: 2004
- Subjects: Shrubs -- South Africa -- Eastern Cape Slopes (Physical geography) -- South Africa -- Eastern Cape Biological invasions -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4833 , http://hdl.handle.net/10962/d1005508
- Description: The factors that influence the invasion of hillslopes by the shrub Pteronia incana in the communal rangelands of Ngqushwa (formerly Peddie) district were investigated. Mgwalana, one of the catchments in the district where encroachment by the species is widespread, was chosen. The study combined field observations with image analysis based on high resolution infrared imagery. The catchment was flown and high resolution infrared images (1mx1m) were taken using a Kodak DCS420 digital, colour-infrared camera. The images were analysed using Idrisi32 and Kilimanjaro GIS versions. The ability of different vegetation indices to separate P. incana from the other cover types was investigated. Field observations of the degree of P. incana invasion in relation to, inter alia, soil surface conditions, slope angle and visible forms of erosion were made. A Digital Elevation Model (DEM) of 20m spatial resolution was used to derive terrain parameters. The presence and absence of P. incana in relation to slope gradient and aspect were determined. The combined influence of the two terrain parameters and land use on the invasion was also investigated. The Topographic Wetness Index (WI), a component of the TOPMODEL was derived from the DEM and its relationship with the spatial distribution of P. incana was explored. Soil moisture dependencies for P. incana and grass species as well as surrogates for runoff under the shrub and adjacent bare areas were determined in the field. A high level of classification accuracy confirmed the reliability of digital camera imagery for spatial analyses. Distinct spectral separability for the surface vegetation cover types was achieved by means of the Perpendicular Vegetation Index (PVI) as opposed to the ratio based vegetation indices (NDVI, SAVI and MSAVI). The absence/presence of P. incana was noted to be strongly influenced by slope angle and aspect. The probability for P. incana occurrence increased with slope steepness and southerly slope orientation. Abandoned and grazing lands were identified as the main invasion hotspots. Blanket invasion of the former signified the high susceptibility of abandoned land to P. incana invasion. The combined influence of land use, slope gradient and aspect was also noted to have promoted the invasion. This is borne out by the concentration of the invasion on abandoned steep slopes with a southerly orientation. Local topographic variations were identified as having a strong bearing on P. incana spatial distribution. The topographically driven WI confirmed this relationship, such that P. incana was associated with the low WI values of convexities. Differences in the moisture dependencies between P. incana and grass species were demonstrated by the greater rooting depth of the former. During field surveys, soil surface crusting was noted as inherent to P. incana patchiness. The coupling between local topography and soil surface crusting underpins soil moisture variability at hillslope and patch scales respectively. This in turn determines the competition between P. incana and grass species and the eventual replacement of the latter by the former. A close spatial correlation between fully established P. incana and severe forms of soil erosion was observed. Loss of patchiness and expansion of inter-patch bare areas promote runoff connectivity erosion. As most of the runoff becomes run out, hillslopes tend towards dysfunctional systems. Greater soil moisture storage after rainstorms under P. incana tussocks than the adjacent bare areas signifies the shrub’s water harvesting capabilities. The tussocks could thus serve as a starting-pointbuilding- block for the rehabilitation of dysfunctional hillslope systems.
- Full Text:
- Date Issued: 2004
- Authors: Kakembo, Vincent
- Date: 2004
- Subjects: Shrubs -- South Africa -- Eastern Cape Slopes (Physical geography) -- South Africa -- Eastern Cape Biological invasions -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4833 , http://hdl.handle.net/10962/d1005508
- Description: The factors that influence the invasion of hillslopes by the shrub Pteronia incana in the communal rangelands of Ngqushwa (formerly Peddie) district were investigated. Mgwalana, one of the catchments in the district where encroachment by the species is widespread, was chosen. The study combined field observations with image analysis based on high resolution infrared imagery. The catchment was flown and high resolution infrared images (1mx1m) were taken using a Kodak DCS420 digital, colour-infrared camera. The images were analysed using Idrisi32 and Kilimanjaro GIS versions. The ability of different vegetation indices to separate P. incana from the other cover types was investigated. Field observations of the degree of P. incana invasion in relation to, inter alia, soil surface conditions, slope angle and visible forms of erosion were made. A Digital Elevation Model (DEM) of 20m spatial resolution was used to derive terrain parameters. The presence and absence of P. incana in relation to slope gradient and aspect were determined. The combined influence of the two terrain parameters and land use on the invasion was also investigated. The Topographic Wetness Index (WI), a component of the TOPMODEL was derived from the DEM and its relationship with the spatial distribution of P. incana was explored. Soil moisture dependencies for P. incana and grass species as well as surrogates for runoff under the shrub and adjacent bare areas were determined in the field. A high level of classification accuracy confirmed the reliability of digital camera imagery for spatial analyses. Distinct spectral separability for the surface vegetation cover types was achieved by means of the Perpendicular Vegetation Index (PVI) as opposed to the ratio based vegetation indices (NDVI, SAVI and MSAVI). The absence/presence of P. incana was noted to be strongly influenced by slope angle and aspect. The probability for P. incana occurrence increased with slope steepness and southerly slope orientation. Abandoned and grazing lands were identified as the main invasion hotspots. Blanket invasion of the former signified the high susceptibility of abandoned land to P. incana invasion. The combined influence of land use, slope gradient and aspect was also noted to have promoted the invasion. This is borne out by the concentration of the invasion on abandoned steep slopes with a southerly orientation. Local topographic variations were identified as having a strong bearing on P. incana spatial distribution. The topographically driven WI confirmed this relationship, such that P. incana was associated with the low WI values of convexities. Differences in the moisture dependencies between P. incana and grass species were demonstrated by the greater rooting depth of the former. During field surveys, soil surface crusting was noted as inherent to P. incana patchiness. The coupling between local topography and soil surface crusting underpins soil moisture variability at hillslope and patch scales respectively. This in turn determines the competition between P. incana and grass species and the eventual replacement of the latter by the former. A close spatial correlation between fully established P. incana and severe forms of soil erosion was observed. Loss of patchiness and expansion of inter-patch bare areas promote runoff connectivity erosion. As most of the runoff becomes run out, hillslopes tend towards dysfunctional systems. Greater soil moisture storage after rainstorms under P. incana tussocks than the adjacent bare areas signifies the shrub’s water harvesting capabilities. The tussocks could thus serve as a starting-pointbuilding- block for the rehabilitation of dysfunctional hillslope systems.
- Full Text:
- Date Issued: 2004
Family needs following adult traumatic brain injury
- Authors: Van der Merwe, Jó-Marié
- Date: 2004
- Subjects: Brain damage -- Patients -- Family relationships -- South Africa -- Port Elizabeth , Brain damage -- Patients -- Rehabilitation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:11033 , http://hdl.handle.net/10948/335 , Brain damage -- Patients -- Family relationships -- South Africa -- Port Elizabeth , Brain damage -- Patients -- Rehabilitation
- Description: Traumatic brain injury (TBI) represents a significant and growing type of disability in South Africa. Coping with the impact of traumatic brain injury is one of the most difficult tasks that can confront a family, and family members experience a wide range of needs as the injured person progresses through rehabilitation. In South Africa, research on family needs following traumatic brain injury has thus far been neglected and rehabilitation resources are sadly lacking. For this reason it is necessary to accumulate knowledge about these families’ needs so as to assist with the planning of future rehabilitation programmes. The study aimed to explore and describe the needs of a sample of families with adult traumatic brain injury individuals in the Eastern Cape utilizing the Family Needs Questionnaire (FNQ). The research approach followed could be described as descriptive and exploratory in nature and was conducted within a quantitative framework. A biographical questionnaire and the FNQ were administered to a heterogeneous sample of 32 family members, including significant others and primary caregivers, of 16 adult traumatically brain-injured individuals, who sustained the TBI one to three years previously, and who underwent rehabilitation treatment at a private rehabilitation hospital in Port Elizabeth. A non-probability, purposive, and convenient sampling method was used. Descriptive statistics were computed to determine the importance and the perceived fulfillment of the needs. The results of the present study indicated that all 40 needs were endorsed by at least half the sample as being important to very important. Furthermore, 52.50% of the needs were endorsed by more than two-thirds of the sample as being important to very important. The needs were rank-ordered according to their importance ratings and the 10 mostly rated as important or very important were identified. These 10 needs were endorsed by between 84.38% and 93.75% of the family members as being important to very important. Six of the important or very important needs related to health information, two to professional support, one to community support, and one to emotional support. The relation between various participant, traumatically brain-injured individual and brain injury characteristics and the 10 important or very important needs, as well as the 10 needs more frequently rated as met were investigated and found to either have a limited or varied relationship. The 10 needs most often rated as met were endorsed by between 43.75% and 56.25% of the family members. Six of the met needs related to health information, two to community support, one to instrumental support, and one to treatment decisions. The highest unmet need was endorsed by 46.88% of the participants and related to the need to discuss their feelings with someone who has gone through the same experience. Based on the findings of the present study, further research on family needs following traumatic brain injury is suggested. It is also recommended that the Family Needs Questionnaire be used to evaluate existing rehabilitation programmes so as to make suggestions as to how to improve them. The results of this study suggested that family members would benefit from receiving educational information material, as well as referrals to professionals for advice and support.
- Full Text:
- Date Issued: 2004
- Authors: Van der Merwe, Jó-Marié
- Date: 2004
- Subjects: Brain damage -- Patients -- Family relationships -- South Africa -- Port Elizabeth , Brain damage -- Patients -- Rehabilitation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:11033 , http://hdl.handle.net/10948/335 , Brain damage -- Patients -- Family relationships -- South Africa -- Port Elizabeth , Brain damage -- Patients -- Rehabilitation
- Description: Traumatic brain injury (TBI) represents a significant and growing type of disability in South Africa. Coping with the impact of traumatic brain injury is one of the most difficult tasks that can confront a family, and family members experience a wide range of needs as the injured person progresses through rehabilitation. In South Africa, research on family needs following traumatic brain injury has thus far been neglected and rehabilitation resources are sadly lacking. For this reason it is necessary to accumulate knowledge about these families’ needs so as to assist with the planning of future rehabilitation programmes. The study aimed to explore and describe the needs of a sample of families with adult traumatic brain injury individuals in the Eastern Cape utilizing the Family Needs Questionnaire (FNQ). The research approach followed could be described as descriptive and exploratory in nature and was conducted within a quantitative framework. A biographical questionnaire and the FNQ were administered to a heterogeneous sample of 32 family members, including significant others and primary caregivers, of 16 adult traumatically brain-injured individuals, who sustained the TBI one to three years previously, and who underwent rehabilitation treatment at a private rehabilitation hospital in Port Elizabeth. A non-probability, purposive, and convenient sampling method was used. Descriptive statistics were computed to determine the importance and the perceived fulfillment of the needs. The results of the present study indicated that all 40 needs were endorsed by at least half the sample as being important to very important. Furthermore, 52.50% of the needs were endorsed by more than two-thirds of the sample as being important to very important. The needs were rank-ordered according to their importance ratings and the 10 mostly rated as important or very important were identified. These 10 needs were endorsed by between 84.38% and 93.75% of the family members as being important to very important. Six of the important or very important needs related to health information, two to professional support, one to community support, and one to emotional support. The relation between various participant, traumatically brain-injured individual and brain injury characteristics and the 10 important or very important needs, as well as the 10 needs more frequently rated as met were investigated and found to either have a limited or varied relationship. The 10 needs most often rated as met were endorsed by between 43.75% and 56.25% of the family members. Six of the met needs related to health information, two to community support, one to instrumental support, and one to treatment decisions. The highest unmet need was endorsed by 46.88% of the participants and related to the need to discuss their feelings with someone who has gone through the same experience. Based on the findings of the present study, further research on family needs following traumatic brain injury is suggested. It is also recommended that the Family Needs Questionnaire be used to evaluate existing rehabilitation programmes so as to make suggestions as to how to improve them. The results of this study suggested that family members would benefit from receiving educational information material, as well as referrals to professionals for advice and support.
- Full Text:
- Date Issued: 2004
Filling the gap : Nietzsche's account of authenticity as a supplementary ideal
- Authors: Baker, Michaela Christie
- Date: 2004
- Subjects: Nietzsche, Friedrich Wilhelm, 1844-1900 -- Ethics , Authenticity (Philosophy) , Ethics, Modern , Normativity (Ethics) , Self-knowledge, Theory of
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2727 , http://hdl.handle.net/10962/d1003734 , Nietzsche, Friedrich Wilhelm, 1844-1900 -- Ethics , Authenticity (Philosophy) , Ethics, Modern , Normativity (Ethics) , Self-knowledge, Theory of
- Description: This thesis examines the ideal of authenticity: why we might want or need such an ideal, what such an ideal would look like, and what mechanisms we would need to ensure the successful operation of such an ideal. The thesis has three main parts. The first part of the thesis aims at motivating the need to look to authenticity as a supplementary ideal to normative moral theory. I do this by drawing a distinction between ethics and morality and arguing that there are important aspects of our lives (such as our relations to ourselves) our beliefs and projects) about which normative moral theory fails to give us guidance and about which an ethical ideal, namely that of authenticity, can provide us with the requisite guidance. The second part of the thesis elucidates Nietzsche's view of authenticity as eternal return. I argue that eternal return consists in holding a particular attitude to one's life - one's past, present and future. I then demonstrate that what is fundamental to successfully living authentically in accordance with eternal return is a rigorous search for self-knowledge. In the third part of the thesis I argue that, in order to achieve the self-knowledge necessary to being a successful authentic agent, one must acquire it through a process of dialogue with other agents. I give a model of self-knowledge as a dialogic encounter that provides two important mechanisms whereby such self-knowledge can be gained.
- Full Text:
- Date Issued: 2004
- Authors: Baker, Michaela Christie
- Date: 2004
- Subjects: Nietzsche, Friedrich Wilhelm, 1844-1900 -- Ethics , Authenticity (Philosophy) , Ethics, Modern , Normativity (Ethics) , Self-knowledge, Theory of
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2727 , http://hdl.handle.net/10962/d1003734 , Nietzsche, Friedrich Wilhelm, 1844-1900 -- Ethics , Authenticity (Philosophy) , Ethics, Modern , Normativity (Ethics) , Self-knowledge, Theory of
- Description: This thesis examines the ideal of authenticity: why we might want or need such an ideal, what such an ideal would look like, and what mechanisms we would need to ensure the successful operation of such an ideal. The thesis has three main parts. The first part of the thesis aims at motivating the need to look to authenticity as a supplementary ideal to normative moral theory. I do this by drawing a distinction between ethics and morality and arguing that there are important aspects of our lives (such as our relations to ourselves) our beliefs and projects) about which normative moral theory fails to give us guidance and about which an ethical ideal, namely that of authenticity, can provide us with the requisite guidance. The second part of the thesis elucidates Nietzsche's view of authenticity as eternal return. I argue that eternal return consists in holding a particular attitude to one's life - one's past, present and future. I then demonstrate that what is fundamental to successfully living authentically in accordance with eternal return is a rigorous search for self-knowledge. In the third part of the thesis I argue that, in order to achieve the self-knowledge necessary to being a successful authentic agent, one must acquire it through a process of dialogue with other agents. I give a model of self-knowledge as a dialogic encounter that provides two important mechanisms whereby such self-knowledge can be gained.
- Full Text:
- Date Issued: 2004
Fishes in the Mngazi and Mngazana estuaries, with particular emphasis on the community structure and primary carbon sources
- Authors: Mbande, Sekiwe
- Date: 2004
- Subjects: Fishes -- South Africa -- Mngazi Estuary , Fishes -- South Africa -- Mngazana Estuary , Fishes -- Effect of habitat modification on -- South Africa -- Mngazi Estuary , Fishes -- Effect of habitat modification on -- South Africa -- Mngazana Estuary , Estuarine fishes -- South Africa -- Eastern Cape , Estuarine ecology -- South Africa -- Eastern Cape , Fishes -- Physiology , Fishes -- Effect of water quality on , Fishes -- Effect of temperature on , Fishes -- Food , Fishes -- Effect of turbidity on
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5700 , http://hdl.handle.net/10962/d1005386 , Fishes -- South Africa -- Mngazi Estuary , Fishes -- South Africa -- Mngazana Estuary , Fishes -- Effect of habitat modification on -- South Africa -- Mngazi Estuary , Fishes -- Effect of habitat modification on -- South Africa -- Mngazana Estuary , Estuarine fishes -- South Africa -- Eastern Cape , Estuarine ecology -- South Africa -- Eastern Cape , Fishes -- Physiology , Fishes -- Effect of water quality on , Fishes -- Effect of temperature on , Fishes -- Food , Fishes -- Effect of turbidity on
- Description: The fish community structure of two contrasting estuaries, one with a well developed mangrove forest (Mngazana) and the other without mangroves (Mngazi) was compared. Both the Mngazi and Mngazana estuary fish communities were dominated by marine species, reflecting the importance of these systems as nursery areas for marine fishes. The Mngazi Estuary contained 18% more estuarine fishes in terms of catch per unit effort (CPUE) than the Mngazana Estuary. The reduced tidal influence due to the narrow mouth opening is a possible reason for the heightened CPUE of estuarine species in the Mngazi estuary. The recorded higher diversity of fish species in the Mngazana Estuary when compared with the Mngazi Estuary was attributed to the greater influence of the marine environment due to the wide permanently open mouth, as well as the presence of a variety of habitats in this system. In both estuaries tropical and temperate species were captured, confirming the transitional nature of their biogeographic location which is situated close to the boundary between the subtropical and warm temperate regions of the Southern African coastline. Contrary to previous studies, which recorded seasonal changes in the proportions of tropical and temperate species, the proportions of tropical species remained unchanged at approximately 70% during the January and June sampling occasions. Global warming as a possible reason for the increased dominance of tropical species is discussed. Although several studies in southern Africa have investigated estuarine food web structure, none have compared mangrove and non-mangrove estuaries. In this study, the primary sources of carbon utilised by the fish fauna in the Mngazi and Mngazana estuaries was investigated. The carbon isotopic values of fishes in both estuaries displayed a continuum rather than a tight clustering around particular energy sources. Most detritus feeders of the family Mugilidae (mullets) from both estuaries were relatively more enriched than other fish taxa. The isotopic values of the mullet species suggest a diet derived from relatively enriched carbon sources such as benthic microalgae, the eelgrass Zostera capensis and associated epiphytes. Based on the isotopic values, piscivorous fishes from both estuaries could not be linked to specific prey fish taxa, but clearly the mullet species were not their main food source. The invertebrate feeders that were found in both estuaries showed greater isotopic variations in the Mngazana Estuary than in the Mngazi Estuary, probably reflecting the higher diversity of habitats (carbon sources) and invertebrate prey species in the Mngazana system. Generally the isotopic signatures of fishes from the Mngazi Estuary were more enriched than those from the Mngazana Estuary, thus indicating the possible effect of δ¹³C depleted mangrove derived carbon in the latter system.
- Full Text:
- Date Issued: 2004
- Authors: Mbande, Sekiwe
- Date: 2004
- Subjects: Fishes -- South Africa -- Mngazi Estuary , Fishes -- South Africa -- Mngazana Estuary , Fishes -- Effect of habitat modification on -- South Africa -- Mngazi Estuary , Fishes -- Effect of habitat modification on -- South Africa -- Mngazana Estuary , Estuarine fishes -- South Africa -- Eastern Cape , Estuarine ecology -- South Africa -- Eastern Cape , Fishes -- Physiology , Fishes -- Effect of water quality on , Fishes -- Effect of temperature on , Fishes -- Food , Fishes -- Effect of turbidity on
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5700 , http://hdl.handle.net/10962/d1005386 , Fishes -- South Africa -- Mngazi Estuary , Fishes -- South Africa -- Mngazana Estuary , Fishes -- Effect of habitat modification on -- South Africa -- Mngazi Estuary , Fishes -- Effect of habitat modification on -- South Africa -- Mngazana Estuary , Estuarine fishes -- South Africa -- Eastern Cape , Estuarine ecology -- South Africa -- Eastern Cape , Fishes -- Physiology , Fishes -- Effect of water quality on , Fishes -- Effect of temperature on , Fishes -- Food , Fishes -- Effect of turbidity on
- Description: The fish community structure of two contrasting estuaries, one with a well developed mangrove forest (Mngazana) and the other without mangroves (Mngazi) was compared. Both the Mngazi and Mngazana estuary fish communities were dominated by marine species, reflecting the importance of these systems as nursery areas for marine fishes. The Mngazi Estuary contained 18% more estuarine fishes in terms of catch per unit effort (CPUE) than the Mngazana Estuary. The reduced tidal influence due to the narrow mouth opening is a possible reason for the heightened CPUE of estuarine species in the Mngazi estuary. The recorded higher diversity of fish species in the Mngazana Estuary when compared with the Mngazi Estuary was attributed to the greater influence of the marine environment due to the wide permanently open mouth, as well as the presence of a variety of habitats in this system. In both estuaries tropical and temperate species were captured, confirming the transitional nature of their biogeographic location which is situated close to the boundary between the subtropical and warm temperate regions of the Southern African coastline. Contrary to previous studies, which recorded seasonal changes in the proportions of tropical and temperate species, the proportions of tropical species remained unchanged at approximately 70% during the January and June sampling occasions. Global warming as a possible reason for the increased dominance of tropical species is discussed. Although several studies in southern Africa have investigated estuarine food web structure, none have compared mangrove and non-mangrove estuaries. In this study, the primary sources of carbon utilised by the fish fauna in the Mngazi and Mngazana estuaries was investigated. The carbon isotopic values of fishes in both estuaries displayed a continuum rather than a tight clustering around particular energy sources. Most detritus feeders of the family Mugilidae (mullets) from both estuaries were relatively more enriched than other fish taxa. The isotopic values of the mullet species suggest a diet derived from relatively enriched carbon sources such as benthic microalgae, the eelgrass Zostera capensis and associated epiphytes. Based on the isotopic values, piscivorous fishes from both estuaries could not be linked to specific prey fish taxa, but clearly the mullet species were not their main food source. The invertebrate feeders that were found in both estuaries showed greater isotopic variations in the Mngazana Estuary than in the Mngazi Estuary, probably reflecting the higher diversity of habitats (carbon sources) and invertebrate prey species in the Mngazana system. Generally the isotopic signatures of fishes from the Mngazi Estuary were more enriched than those from the Mngazana Estuary, thus indicating the possible effect of δ¹³C depleted mangrove derived carbon in the latter system.
- Full Text:
- Date Issued: 2004
Framing the other : representations of Africa in The Japan Times/Online between January and December 2000 : a case study
- Authors: Ngoro, Blackman Rodrick
- Date: 2004
- Subjects: Africa -- In mass media -- Japan , Newspapers -- Japan , Japan Times/Online , Africa -- Foreign public opinion, Japanese
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3476 , http://hdl.handle.net/10962/d1002931 , Africa -- In mass media -- Japan , Newspapers -- Japan , Japan Times/Online , Africa -- Foreign public opinion, Japanese
- Description: The aim of this study is to find out, against the news genre norms, how representations of particular regions are produced in the structure of newspaper reporting in the foreign news sub-genre. The study focuses on news reports concerning Africa, or African countries, in one Tokyo-based newspaper: The Japan Times/Online. The study is theoretically informed by Cultural Studies – a field of study concerned with the study of ideology and power in discourse – and investigates how Africa and African countries are represented as “other” than developed countries. This is a textual study that focuses on the production moment using Critical Discourse Analysis methods. Critical discourse analysis is interested in the study of ideological forms that have become naturalised over time, so that ideology has become common sense. The first part of the study analyses headlines and reveals evidence of ideological positions adopted by The Japan Times/Online in the representation of, firstly, home or Japanese actors, which is very different to the representation of African actors. The second part of the analysis examines the structures of the texts and the language used therein. The evidence from this analysis shows how Africa is represented as a Third World entity through various crises, including a health epidemic, perceptions of political instability and economic instability, an inadequate business image, as well as market and managerial skills, and wars and conflict. The study concludes with a discussion of the representation of Africa and African countries as a part of the Third World entity. This representation reflects and naturalises social inequality between developed countries and those of the Third World, of which Africa is a part. The representation of Africa as a Third World entity also naturalises the social, health, economic and political conditions said to be characteristic of African countries. It is this process of representation that reveals the power relations between Japan as a First World country and Africa as part of the Third World.
- Full Text:
- Date Issued: 2004
- Authors: Ngoro, Blackman Rodrick
- Date: 2004
- Subjects: Africa -- In mass media -- Japan , Newspapers -- Japan , Japan Times/Online , Africa -- Foreign public opinion, Japanese
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3476 , http://hdl.handle.net/10962/d1002931 , Africa -- In mass media -- Japan , Newspapers -- Japan , Japan Times/Online , Africa -- Foreign public opinion, Japanese
- Description: The aim of this study is to find out, against the news genre norms, how representations of particular regions are produced in the structure of newspaper reporting in the foreign news sub-genre. The study focuses on news reports concerning Africa, or African countries, in one Tokyo-based newspaper: The Japan Times/Online. The study is theoretically informed by Cultural Studies – a field of study concerned with the study of ideology and power in discourse – and investigates how Africa and African countries are represented as “other” than developed countries. This is a textual study that focuses on the production moment using Critical Discourse Analysis methods. Critical discourse analysis is interested in the study of ideological forms that have become naturalised over time, so that ideology has become common sense. The first part of the study analyses headlines and reveals evidence of ideological positions adopted by The Japan Times/Online in the representation of, firstly, home or Japanese actors, which is very different to the representation of African actors. The second part of the analysis examines the structures of the texts and the language used therein. The evidence from this analysis shows how Africa is represented as a Third World entity through various crises, including a health epidemic, perceptions of political instability and economic instability, an inadequate business image, as well as market and managerial skills, and wars and conflict. The study concludes with a discussion of the representation of Africa and African countries as a part of the Third World entity. This representation reflects and naturalises social inequality between developed countries and those of the Third World, of which Africa is a part. The representation of Africa as a Third World entity also naturalises the social, health, economic and political conditions said to be characteristic of African countries. It is this process of representation that reveals the power relations between Japan as a First World country and Africa as part of the Third World.
- Full Text:
- Date Issued: 2004
From imifino to umfuno : a case study foregrounding indigenous agricultural knowledge in school-based curriculum development
- Authors: Asafo-Adjei, Robert Tetteh
- Date: 2004
- Subjects: Plants, Edible -- South Africa -- Eastern Cape Wild plants, Edible -- South Africa -- Eastern Cape Human-plant relationships -- South Africa -- Eastern Cape Endemic plants -- South Africa Agricultural education Agriculture -- Study and teaching -- South Africa -- Eastern Cape Xhosa (African people) -- Social life and customs
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1829 , http://hdl.handle.net/10962/d1003731
- Description: This work is a school-based case study conducted amongst learners of a rural High School and the immediate community in Whittlesea in the Eastern Cape where I teach. The research was conducted by using different research methods such as worksheets, questionnaires, interviews, practical activities and observations as well as photographs to investigate three indigenous wild local vegetable food plants (imifino). The fundamental assumption of the research is that, imifino can be looked after and cared for, to become valuable vegetable food plants which can be used as supplements to the cultivated vegetable food plants (umfuno). The question was: How could this concept be brought into the curriculum? It had also been assumed that bringing knowledge of imifino into curriculwn contexts could be of benefit to South African learners. The study produced a variety of findings: • There is a general feeling that those who eat imifino are the poor. • There is a lack of interest among women interviewed in the preparation process, for example going to pick the food plants from the fields, washing them and preparing the leaves as food. • AmaXhosa males look upon eating imifino with contempt. • Some males among the younger generation are beginning to overlook tradition and are eating imifino. • Inclusion of indigenous agricultural knowledge in the curriculum was supported by learners and community members. Learners have interest in knowing about indigenous food plants. • Learners feel as Africans that they must learn about the indigenous food plants in school in order not to lose knowledge of these plants completely. • The study also identified that interpretation of learning outcomes with an indigenous knowledge focus, requires careful attention to socio-cultural factors, and not just technical/ practical factors. Previous knowledge of learners and community members about imifino was mobilized to develop a sample OBE learning programme unit (LPU /Lesson plan) for the Grade 10 FET of Agricultural Science curriculum. The case study illustrates that Learning outcome 3 of the Agricultural Science subject can be achieved if educators involve learners and community members in developing learning programmes.
- Full Text:
- Date Issued: 2004
- Authors: Asafo-Adjei, Robert Tetteh
- Date: 2004
- Subjects: Plants, Edible -- South Africa -- Eastern Cape Wild plants, Edible -- South Africa -- Eastern Cape Human-plant relationships -- South Africa -- Eastern Cape Endemic plants -- South Africa Agricultural education Agriculture -- Study and teaching -- South Africa -- Eastern Cape Xhosa (African people) -- Social life and customs
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:1829 , http://hdl.handle.net/10962/d1003731
- Description: This work is a school-based case study conducted amongst learners of a rural High School and the immediate community in Whittlesea in the Eastern Cape where I teach. The research was conducted by using different research methods such as worksheets, questionnaires, interviews, practical activities and observations as well as photographs to investigate three indigenous wild local vegetable food plants (imifino). The fundamental assumption of the research is that, imifino can be looked after and cared for, to become valuable vegetable food plants which can be used as supplements to the cultivated vegetable food plants (umfuno). The question was: How could this concept be brought into the curriculum? It had also been assumed that bringing knowledge of imifino into curriculwn contexts could be of benefit to South African learners. The study produced a variety of findings: • There is a general feeling that those who eat imifino are the poor. • There is a lack of interest among women interviewed in the preparation process, for example going to pick the food plants from the fields, washing them and preparing the leaves as food. • AmaXhosa males look upon eating imifino with contempt. • Some males among the younger generation are beginning to overlook tradition and are eating imifino. • Inclusion of indigenous agricultural knowledge in the curriculum was supported by learners and community members. Learners have interest in knowing about indigenous food plants. • Learners feel as Africans that they must learn about the indigenous food plants in school in order not to lose knowledge of these plants completely. • The study also identified that interpretation of learning outcomes with an indigenous knowledge focus, requires careful attention to socio-cultural factors, and not just technical/ practical factors. Previous knowledge of learners and community members about imifino was mobilized to develop a sample OBE learning programme unit (LPU /Lesson plan) for the Grade 10 FET of Agricultural Science curriculum. The case study illustrates that Learning outcome 3 of the Agricultural Science subject can be achieved if educators involve learners and community members in developing learning programmes.
- Full Text:
- Date Issued: 2004
Genetic analysis of the Octopus vulgaris population on the coast of South Africa
- Oosthuizen, Ané, Jiwaji, Meesbah, Shaw, Paul W
- Authors: Oosthuizen, Ané , Jiwaji, Meesbah , Shaw, Paul W
- Date: 2004
- Language: English
- Type: Article
- Identifier: vital:6761 , http://hdl.handle.net/10962/d1007922
- Description: This study on Octopus vulgaris focused on the COIII gene region of mitochondrial DNA. Sequences from 21 samples from the Eastern Cape, and 14 samples from the Western Cape, were compared to determine whether different populations exist along the South African coast. A 380-bp segment of the COIII region of mtDNA was amplified using the polymerase chain reaction with specific designed primers. Phylogenetic inference was made using maximum parsimony (MP), maximum likelihood (ML), and distance based methods. All sequences conformed to a single haplotype. Lack of variation within and between east and west coast samples precluded further population genetic analysis. The sequence obtained in this study was also compared with other sequences lodged in the Genbank database. Phylogenetically, the South African O. vulgaris is closely related to O. vulgaris from Senegal (0.67% divergence) and the Mediterranean (1.51% divergence). Within the Mediterranean group, O. vulgaris from South Africa displayed less sequence divergence from Senegalese and Mediterranean individuals than O. vulgaris from Venezuela (3.85%) and Taiwan (3.87%). These data do not, therefore, refute the hypothesis of a single O. vulgaris genetic population around the coast.
- Full Text:
- Date Issued: 2004
- Authors: Oosthuizen, Ané , Jiwaji, Meesbah , Shaw, Paul W
- Date: 2004
- Language: English
- Type: Article
- Identifier: vital:6761 , http://hdl.handle.net/10962/d1007922
- Description: This study on Octopus vulgaris focused on the COIII gene region of mitochondrial DNA. Sequences from 21 samples from the Eastern Cape, and 14 samples from the Western Cape, were compared to determine whether different populations exist along the South African coast. A 380-bp segment of the COIII region of mtDNA was amplified using the polymerase chain reaction with specific designed primers. Phylogenetic inference was made using maximum parsimony (MP), maximum likelihood (ML), and distance based methods. All sequences conformed to a single haplotype. Lack of variation within and between east and west coast samples precluded further population genetic analysis. The sequence obtained in this study was also compared with other sequences lodged in the Genbank database. Phylogenetically, the South African O. vulgaris is closely related to O. vulgaris from Senegal (0.67% divergence) and the Mediterranean (1.51% divergence). Within the Mediterranean group, O. vulgaris from South Africa displayed less sequence divergence from Senegalese and Mediterranean individuals than O. vulgaris from Venezuela (3.85%) and Taiwan (3.87%). These data do not, therefore, refute the hypothesis of a single O. vulgaris genetic population around the coast.
- Full Text:
- Date Issued: 2004
Geographic susceptibility of Helicoverpa armigera (Lepidoptera: Noctuidae) to insecticidal proteins in Bt-cotton in South Africa
- Van Jaarsveld, Martha Johanna
- Authors: Van Jaarsveld, Martha Johanna
- Date: 2004
- Subjects: Helicoverpa armigera , Noctuidae , Lepidoptera , Cotton -- Diseases and pests -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5701 , http://hdl.handle.net/10962/d1005387 , Helicoverpa armigera , Noctuidae , Lepidoptera , Cotton -- Diseases and pests -- South Africa
- Description: Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) (African bollworm) is a typical noctuid with a very catholic taste in food plants and whose larvae feed on a wide range of cultivated and wild plants. It has been identified as the most polyphagous and injurious pest in South Africa. Helicoverpa armigera is also a key pest of cotton in many parts of the world. This key pest requires extensive control as it adversely effects yield and has built up resistance to synthetic pyrethroid insecticides. Cotton is an important crop produced by commercial and small-scale farmers in South Africa. The local demand for cotton has not been exceeded yet, but to satisfy a demanding market, pest control costs play an important role in cotton production. The threat of an insect pest that has already shown resistance prompted the present study to investigate the possibility of resistance to Bt-cotton. Genetically engineered or Bt-cotton was introduced commercially in 1996 in South Africa. All Bt-cotton plants contain one or more foreign genes derived from the soil-dwelling bacterium, Bacillus thuringiensis (Berliner), which produces protein crystals. These crystals were isolated and transferred into the genome of a cotton plant resulting in the plant producing it’s own protein insecticide. In 1998, Monsanto (Pty) Ltd requested research into the geographic susceptibility of H. armigera to the insecticidal proteins in Bt-cotton in SA. Laboratory reared and field sampled populations of H. armigera were exposed to a diet mixed with various baseline concentrations of the Bt-gene Cry1Ac freeze dried protein. This study also determined the performance of H. armigera and Spodoptera littoralis (Boisduval) on different Bt-cotton field cultivars containing different Cry-protein genes. Results obtained indicated a significant difference in susceptibility in two field populations of H. armigera to the Bt-protein Cry1Ac, even though the LD50,s in the 2003 season did not indicate resistance. Bt-cotton cultivar 15985 BX controlled H. armigera and S. littoralis larvae, the best followed in descending order by cultivar 15985 X, 15985 B and DP50 B. Results on H. armigera also indicated that the Cry-proteins in the plant parts of the different cultivars did not diminish as the season progressed. The Bt-cotton cultivars induced retarded growth of larvae, due to either a repellent effect or lack of feeding by larvae. Widespread adoption of Bt-cotton by South African farmers led to regional declines in bollworm populations, reduced insecticide use, and increased yields. Genetically modified crops therefore contribute to a cost effective, sustainable, productive and efficient form of agriculture, with a resultant positive impact on the environment. As the market for commercial Bt-cotton in South Africa expands, it is recommended that a monitoring programme for potential resistant genes in H. armigera should be implemented at least every 2 - 3 years. This will ensure that effective resistance management strategies are utilised. Coupled with this are the Biosafety Risks regarding the effect of new proteins expressed in transgenic plants, which require further studies.
- Full Text:
- Date Issued: 2004
- Authors: Van Jaarsveld, Martha Johanna
- Date: 2004
- Subjects: Helicoverpa armigera , Noctuidae , Lepidoptera , Cotton -- Diseases and pests -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5701 , http://hdl.handle.net/10962/d1005387 , Helicoverpa armigera , Noctuidae , Lepidoptera , Cotton -- Diseases and pests -- South Africa
- Description: Helicoverpa armigera Hübner (Lepidoptera: Noctuidae) (African bollworm) is a typical noctuid with a very catholic taste in food plants and whose larvae feed on a wide range of cultivated and wild plants. It has been identified as the most polyphagous and injurious pest in South Africa. Helicoverpa armigera is also a key pest of cotton in many parts of the world. This key pest requires extensive control as it adversely effects yield and has built up resistance to synthetic pyrethroid insecticides. Cotton is an important crop produced by commercial and small-scale farmers in South Africa. The local demand for cotton has not been exceeded yet, but to satisfy a demanding market, pest control costs play an important role in cotton production. The threat of an insect pest that has already shown resistance prompted the present study to investigate the possibility of resistance to Bt-cotton. Genetically engineered or Bt-cotton was introduced commercially in 1996 in South Africa. All Bt-cotton plants contain one or more foreign genes derived from the soil-dwelling bacterium, Bacillus thuringiensis (Berliner), which produces protein crystals. These crystals were isolated and transferred into the genome of a cotton plant resulting in the plant producing it’s own protein insecticide. In 1998, Monsanto (Pty) Ltd requested research into the geographic susceptibility of H. armigera to the insecticidal proteins in Bt-cotton in SA. Laboratory reared and field sampled populations of H. armigera were exposed to a diet mixed with various baseline concentrations of the Bt-gene Cry1Ac freeze dried protein. This study also determined the performance of H. armigera and Spodoptera littoralis (Boisduval) on different Bt-cotton field cultivars containing different Cry-protein genes. Results obtained indicated a significant difference in susceptibility in two field populations of H. armigera to the Bt-protein Cry1Ac, even though the LD50,s in the 2003 season did not indicate resistance. Bt-cotton cultivar 15985 BX controlled H. armigera and S. littoralis larvae, the best followed in descending order by cultivar 15985 X, 15985 B and DP50 B. Results on H. armigera also indicated that the Cry-proteins in the plant parts of the different cultivars did not diminish as the season progressed. The Bt-cotton cultivars induced retarded growth of larvae, due to either a repellent effect or lack of feeding by larvae. Widespread adoption of Bt-cotton by South African farmers led to regional declines in bollworm populations, reduced insecticide use, and increased yields. Genetically modified crops therefore contribute to a cost effective, sustainable, productive and efficient form of agriculture, with a resultant positive impact on the environment. As the market for commercial Bt-cotton in South Africa expands, it is recommended that a monitoring programme for potential resistant genes in H. armigera should be implemented at least every 2 - 3 years. This will ensure that effective resistance management strategies are utilised. Coupled with this are the Biosafety Risks regarding the effect of new proteins expressed in transgenic plants, which require further studies.
- Full Text:
- Date Issued: 2004
Globalisation as a business strategy for South African architectural practices
- Authors: Vosloo, Christo
- Date: 2004
- Subjects: Globalization , Architectural firms -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:9271 , http://hdl.handle.net/10948/234 , Globalization , Architectural firms -- South Africa
- Description: Globalisation has become a common topic of discussion and research. This treatise focuses on its role as part of the business of Architectural practice. It investigates the reasons why selected South African Architectural practices decided to globalise, how this decision was reached, implemented and how successful the decisions were. Based on the findings of a literature study it uses the case study methodology to confirm the findings that the strategic position of South African Architectural practices is one where practical and historical reasons exist for the profession to embark on a globalisation strategy. The studies confirm that a globalisation strategy presents a suitable, feasible and acceptable strategy for South African Architectural practices. However, a disconcerting element of the findings was the fact that there are strong indications that South African Architectural practices do not realise the potential benefits inherent in regular strategic planning. Thus it recommends that such a strategy should be based on specialist knowledge or experience, that opening an office in the area to which firms wish to expand will greatly enhance the chances of success, that formal strategic planning processes should be used to ensure that such a strategy is an appropriate one and to identify the countries to which the firm plans to expand its services. Furthermore, it recommends that Government should recognise that firms expanding in this manner hold specific advantages for the national economy and introduce steps to support the profession so that it may build the capacity and skills required therefore. In addition it recommends that the relevant professional bodies should ensure that their members have the business and managerial skills required to ensure the achievement of these objectives.
- Full Text:
- Date Issued: 2004
- Authors: Vosloo, Christo
- Date: 2004
- Subjects: Globalization , Architectural firms -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:9271 , http://hdl.handle.net/10948/234 , Globalization , Architectural firms -- South Africa
- Description: Globalisation has become a common topic of discussion and research. This treatise focuses on its role as part of the business of Architectural practice. It investigates the reasons why selected South African Architectural practices decided to globalise, how this decision was reached, implemented and how successful the decisions were. Based on the findings of a literature study it uses the case study methodology to confirm the findings that the strategic position of South African Architectural practices is one where practical and historical reasons exist for the profession to embark on a globalisation strategy. The studies confirm that a globalisation strategy presents a suitable, feasible and acceptable strategy for South African Architectural practices. However, a disconcerting element of the findings was the fact that there are strong indications that South African Architectural practices do not realise the potential benefits inherent in regular strategic planning. Thus it recommends that such a strategy should be based on specialist knowledge or experience, that opening an office in the area to which firms wish to expand will greatly enhance the chances of success, that formal strategic planning processes should be used to ensure that such a strategy is an appropriate one and to identify the countries to which the firm plans to expand its services. Furthermore, it recommends that Government should recognise that firms expanding in this manner hold specific advantages for the national economy and introduce steps to support the profession so that it may build the capacity and skills required therefore. In addition it recommends that the relevant professional bodies should ensure that their members have the business and managerial skills required to ensure the achievement of these objectives.
- Full Text:
- Date Issued: 2004
Gold exploration northeast of Ngundu Halt, northern marginal zone of the Limpopo Belt, Zimbabwe
- Authors: Simango, Robert Zulu
- Date: 2004 , 2013-05-30
- Subjects: Geology -- Zimbabwe , Gold ores -- Geology -- Zimbabwe , Greenstone belts -- Zimbabwe , Gold mines and mining -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5007 , http://hdl.handle.net/10962/d1005844 , Geology -- Zimbabwe , Gold ores -- Geology -- Zimbabwe , Greenstone belts -- Zimbabwe , Gold mines and mining -- Zimbabwe
- Description: Gold exploration was conducted in northern margin, granulite-facies rocks of the Limpopo Belt. Methods used in the prospecting include drainage, soil and rock geochemistry, geophysical surveys, geological mapping, trenching and diamond drilling. These techniques successfully led to the discovery of two medium size, mesothermal gold deposits (Grid 2s and Grid 4). Objectives of this study were to (a) document the exploration methodology used; (b) describe the regional geology; (c) establish a mineral deposit model; (d) outline the methods and results of various exploration techniques; (e) outline follow-up procedures and evaluation of anomalies; and (f) discuss results of the exploration exercise and conclusions. The granulite-facies terrain comprises Charno-enderbites, mafic and felsic to intermediate metavolcanic rocks and meta-sediments. Renco Mine situated immediately east of the study area, was selected as the ore deposit model for the exploration program. Gold mineralization occurs in shear and thrust zones within an enderbite. The gold deposits are structurally controlled by a first-order, Sinistral transcrustal Mauch Shear Zone, which is parallel to a regional east-northeast penetrative foliation. The deposits are in dilation zones where the Mauch Shear (a) is intersected by a dextral east-west shear (Grid 2s), or (b) has a sinistral splay (Grid 4 and Renco). Close to these deposits, the Mauch Shear is in contact with a "greenstone belt", which is a possible source of crustal metamorphic ore fluids and gold. The Grid 2s deposit contains fine-grained, disseminated free gold, and small amounts of pyrrhotite, pyrite and chalcopyrite in quartz veins within third-order shears in K-feldspar granite. K-feldspar, sericitic, silicic, sulphidation and carbonate alteration characterizes the deposit, which has a proposed mantle-degassing model. The Grid 4 deposit is magmatic porphyry-type, with CuMo and Au in third- and fourth-order shears respectively. Mineralization comprises disseminated to semi-massive pyrrhotite, pyrite, chalcopyrite, sphalerite, bismuth, molybdenite and gold. Wall rock alteration includes biotitic, chloritic, silicic, sulphidation and carbonate. In Grid 2s, Grid 4 and Renco deposits, the alteration mineral assemblages are in three facies, which are granulite, amphibolte and greenschist. In the three deposits, the mineralization occurs with the amphibolite-facies, indicating post-peak, retrograde metamorphic conditions. , Illustrations (maps) only available in print form at Cory Library , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2004
- Authors: Simango, Robert Zulu
- Date: 2004 , 2013-05-30
- Subjects: Geology -- Zimbabwe , Gold ores -- Geology -- Zimbabwe , Greenstone belts -- Zimbabwe , Gold mines and mining -- Zimbabwe
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5007 , http://hdl.handle.net/10962/d1005844 , Geology -- Zimbabwe , Gold ores -- Geology -- Zimbabwe , Greenstone belts -- Zimbabwe , Gold mines and mining -- Zimbabwe
- Description: Gold exploration was conducted in northern margin, granulite-facies rocks of the Limpopo Belt. Methods used in the prospecting include drainage, soil and rock geochemistry, geophysical surveys, geological mapping, trenching and diamond drilling. These techniques successfully led to the discovery of two medium size, mesothermal gold deposits (Grid 2s and Grid 4). Objectives of this study were to (a) document the exploration methodology used; (b) describe the regional geology; (c) establish a mineral deposit model; (d) outline the methods and results of various exploration techniques; (e) outline follow-up procedures and evaluation of anomalies; and (f) discuss results of the exploration exercise and conclusions. The granulite-facies terrain comprises Charno-enderbites, mafic and felsic to intermediate metavolcanic rocks and meta-sediments. Renco Mine situated immediately east of the study area, was selected as the ore deposit model for the exploration program. Gold mineralization occurs in shear and thrust zones within an enderbite. The gold deposits are structurally controlled by a first-order, Sinistral transcrustal Mauch Shear Zone, which is parallel to a regional east-northeast penetrative foliation. The deposits are in dilation zones where the Mauch Shear (a) is intersected by a dextral east-west shear (Grid 2s), or (b) has a sinistral splay (Grid 4 and Renco). Close to these deposits, the Mauch Shear is in contact with a "greenstone belt", which is a possible source of crustal metamorphic ore fluids and gold. The Grid 2s deposit contains fine-grained, disseminated free gold, and small amounts of pyrrhotite, pyrite and chalcopyrite in quartz veins within third-order shears in K-feldspar granite. K-feldspar, sericitic, silicic, sulphidation and carbonate alteration characterizes the deposit, which has a proposed mantle-degassing model. The Grid 4 deposit is magmatic porphyry-type, with CuMo and Au in third- and fourth-order shears respectively. Mineralization comprises disseminated to semi-massive pyrrhotite, pyrite, chalcopyrite, sphalerite, bismuth, molybdenite and gold. Wall rock alteration includes biotitic, chloritic, silicic, sulphidation and carbonate. In Grid 2s, Grid 4 and Renco deposits, the alteration mineral assemblages are in three facies, which are granulite, amphibolte and greenschist. In the three deposits, the mineralization occurs with the amphibolite-facies, indicating post-peak, retrograde metamorphic conditions. , Illustrations (maps) only available in print form at Cory Library , KMBT_363 , Adobe Acrobat 9.54 Paper Capture Plug-in
- Full Text:
- Date Issued: 2004
Harvesting impacts on commonly used medicinal tree species (Catha edulis and Rapanea melanophloeos) under different land management regimes in the Mpumalanga Lowveld, South Africa
- Botha, Jenny, Witkowski, Ed T F, Shackleton, Charlie M
- Authors: Botha, Jenny , Witkowski, Ed T F , Shackleton, Charlie M
- Date: 2004
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/181379 , vital:43728 , xlink:href="https://doi.org/10.4102/koedoe.v47i2.77"
- Description: Harvesting of products from plants in the wild is widespread throughout southern Africa. Particularly important products are plant parts used in traditional medicine. However, the impacts of harvesting practices are rarely quantified, with as yet insufficient generic rules across species and life forms. This limits the predictive ability to monitor and manage the affected populations. This paper examines the harvesting impact on two popular woody medicinal species used throughout sub-Saharan Africa, namely Catha edulis (Vahl) Forssk. ex Endl. (bushman’s tea) and Rapanea melanophloeos (L.) Mez. (Cape beech). In both species, basal diameters, heights, and the number of size classes in the harvested populations were lower than in unharvested. Densities of harvested populations were higher in both species, including densities of young plants, but the frequency of individuals in larger size classes was lower. The populations of both species being harvested for medicinal products appeared to be withstanding the current levels of harvesting, but the population structure of C. edulis populations being harvested for poles on the roadside and near human settlements had been substantially altered. Despite the resilience of the two species to harvesting for medicinal products, loss of habitat or changes in land use pose a threat to a number of the assessed populations.
- Full Text:
- Date Issued: 2004
- Authors: Botha, Jenny , Witkowski, Ed T F , Shackleton, Charlie M
- Date: 2004
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/181379 , vital:43728 , xlink:href="https://doi.org/10.4102/koedoe.v47i2.77"
- Description: Harvesting of products from plants in the wild is widespread throughout southern Africa. Particularly important products are plant parts used in traditional medicine. However, the impacts of harvesting practices are rarely quantified, with as yet insufficient generic rules across species and life forms. This limits the predictive ability to monitor and manage the affected populations. This paper examines the harvesting impact on two popular woody medicinal species used throughout sub-Saharan Africa, namely Catha edulis (Vahl) Forssk. ex Endl. (bushman’s tea) and Rapanea melanophloeos (L.) Mez. (Cape beech). In both species, basal diameters, heights, and the number of size classes in the harvested populations were lower than in unharvested. Densities of harvested populations were higher in both species, including densities of young plants, but the frequency of individuals in larger size classes was lower. The populations of both species being harvested for medicinal products appeared to be withstanding the current levels of harvesting, but the population structure of C. edulis populations being harvested for poles on the roadside and near human settlements had been substantially altered. Despite the resilience of the two species to harvesting for medicinal products, loss of habitat or changes in land use pose a threat to a number of the assessed populations.
- Full Text:
- Date Issued: 2004
Hill of Fools: a South African Romeo and Juliet?
- Authors: Wright, Laurence
- Date: 2004
- Language: English
- Type: text , article
- Identifier: vital:7039 , http://hdl.handle.net/10962/d1007377 , http://hdl.handle.net/10520/EJC47866
- Description: preprint , What kind of debt does Hill of Fools owe to Shakespeare? Look up ‘Peteni’ in the Companion to South African English Literature (1986) and you will be told that Hill of Fools is “loosely based on the story of Romeo and Juliet” (155). Scan the first newspaper reviews (see “The Early Reception of Hill of Fools” in this volume) and it is noticeable that a great many journalists focus on the Shakespeare connection as a means of introducing the book to their readers. One of the publisher’s readers, Henry Chakava, urged before publication that once all references to tribe or tribalism had been excised “the result will be a Romeo and Juliet type story much more superior to Weep Not Child.” The author himself reportedly described the book as “a black Romeo and Juliet drama” (Tribune Reporter 1988). And, indeed, some kind of parallel is patent to anyone who reads Hill of Fools with Shakespeare’s play in mind.
- Full Text:
- Date Issued: 2004
- Authors: Wright, Laurence
- Date: 2004
- Language: English
- Type: text , article
- Identifier: vital:7039 , http://hdl.handle.net/10962/d1007377 , http://hdl.handle.net/10520/EJC47866
- Description: preprint , What kind of debt does Hill of Fools owe to Shakespeare? Look up ‘Peteni’ in the Companion to South African English Literature (1986) and you will be told that Hill of Fools is “loosely based on the story of Romeo and Juliet” (155). Scan the first newspaper reviews (see “The Early Reception of Hill of Fools” in this volume) and it is noticeable that a great many journalists focus on the Shakespeare connection as a means of introducing the book to their readers. One of the publisher’s readers, Henry Chakava, urged before publication that once all references to tribe or tribalism had been excised “the result will be a Romeo and Juliet type story much more superior to Weep Not Child.” The author himself reportedly described the book as “a black Romeo and Juliet drama” (Tribune Reporter 1988). And, indeed, some kind of parallel is patent to anyone who reads Hill of Fools with Shakespeare’s play in mind.
- Full Text:
- Date Issued: 2004
Hill of Fools: notes towards a publishing history
- Authors: Wright, Laurence
- Date: 2004
- Language: English
- Type: text , article
- Identifier: vital:7037 , http://hdl.handle.net/10962/d1007373 , http://hdl.handle.net/10520/EJC47868
- Description: preprint , Written in English in the early 70s, Hill of Fools was projected into the market for world literature among distinguished company in the Heinemann African Writers Series (HAWS), at a time when expectations for African writing in English reflected a certain orthodoxy; when the book’s origins in apartheid South Africa pressed certain ‘buttons’ in world readerships, and when the country’s increasing cultural isolation meant that even relatively well-versed literary Africanists were less than familiar with the milieu from which the story springs. The result has been that the novel acquired a rather odd penumbra of interpretation, ranging from the naïve to the dismissive or reductive.
- Full Text:
- Date Issued: 2004
- Authors: Wright, Laurence
- Date: 2004
- Language: English
- Type: text , article
- Identifier: vital:7037 , http://hdl.handle.net/10962/d1007373 , http://hdl.handle.net/10520/EJC47868
- Description: preprint , Written in English in the early 70s, Hill of Fools was projected into the market for world literature among distinguished company in the Heinemann African Writers Series (HAWS), at a time when expectations for African writing in English reflected a certain orthodoxy; when the book’s origins in apartheid South Africa pressed certain ‘buttons’ in world readerships, and when the country’s increasing cultural isolation meant that even relatively well-versed literary Africanists were less than familiar with the milieu from which the story springs. The result has been that the novel acquired a rather odd penumbra of interpretation, ranging from the naïve to the dismissive or reductive.
- Full Text:
- Date Issued: 2004
How can a potential franchisor establish a successful franchise in fast moving consumer goods
- Authors: Esmeraldo, Rosa
- Date: 2004
- Subjects: Franchises (Retail trade) -- South Africa , Franchises (Retail trade) -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:10872 , http://hdl.handle.net/10948/235 , Franchises (Retail trade) -- South Africa , Franchises (Retail trade) -- Management
- Description: Franchising has become the latest trend in business expansion and business acquisition and with the South African franchising market estimated at being around 12% and growing rapidly, enormous potential for future growth is indicated. Companies both local and international are seeking franchise expansion opportunities in Africa despite the higher risks. The significance of implementing franchises into Africa is the filtering down of business opportunities to the small and medium enterprise sector. It can be said that franchising promotes business growth and private ownership, while improving the quality of life of the poor through its impact on income and employment. A franchise organisation that grows too quickly might not have the necessary ‘factors’ in place to support all of the units properly. In the survey conducted, it was indicated that the franchise business practice echoed the literature reviewed. All the steps necessary to establish a franchise are important but not necessarily as equal. The more matured franchisee needed less guidance from the franchisor and relied more on the business concept and location. Potential franchisors need to take the necessary steps to establish a franchise and treat each step as an important part of the franchise process.
- Full Text:
- Date Issued: 2004
- Authors: Esmeraldo, Rosa
- Date: 2004
- Subjects: Franchises (Retail trade) -- South Africa , Franchises (Retail trade) -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:10872 , http://hdl.handle.net/10948/235 , Franchises (Retail trade) -- South Africa , Franchises (Retail trade) -- Management
- Description: Franchising has become the latest trend in business expansion and business acquisition and with the South African franchising market estimated at being around 12% and growing rapidly, enormous potential for future growth is indicated. Companies both local and international are seeking franchise expansion opportunities in Africa despite the higher risks. The significance of implementing franchises into Africa is the filtering down of business opportunities to the small and medium enterprise sector. It can be said that franchising promotes business growth and private ownership, while improving the quality of life of the poor through its impact on income and employment. A franchise organisation that grows too quickly might not have the necessary ‘factors’ in place to support all of the units properly. In the survey conducted, it was indicated that the franchise business practice echoed the literature reviewed. All the steps necessary to establish a franchise are important but not necessarily as equal. The more matured franchisee needed less guidance from the franchisor and relied more on the business concept and location. Potential franchisors need to take the necessary steps to establish a franchise and treat each step as an important part of the franchise process.
- Full Text:
- Date Issued: 2004
How the South African print media cover economics news: a study of inflation news in four newspapers, 1999-2001
- Authors: Kula, Momelezi Michael
- Date: 2004
- Subjects: Journalism, Commercial -- South Africa , Inflation (Finance) -- South Africa , South Africa -- Newspapers , Mass media -- Political aspects -- Africa , Democracy , Journalism -- Social aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3450 , http://hdl.handle.net/10962/d1002904 , Journalism, Commercial -- South Africa , Inflation (Finance) -- South Africa , South Africa -- Newspapers , Mass media -- Political aspects -- Africa , Democracy , Journalism -- Social aspects
- Description: There is a considerable amount of literature arguing that economics and business journalism is growing. This subfield of journalism is important as economics issues impact on everyday lives of the people. Media have an important role to inform people about the economy and give them a voice to take part in public debates. The down side though is that economics journalism is criticised for not serving the public well in this aspect. Evidence suggests that economics journalism lost its critical character and that there is closer in economics debates. Using content analysis, this study examines coverage of inflation as reported by South African print media. Three major findings emerged: 1) Evidence shows that there are a variety of cases of inflation. 2) There are also similarities among newspapers on what they view as causing inflation. 3) However, media do not draw sources from all sectors of society. The elite, who are educated people and government officials, are over-accessed while the ordinary citizens - although also affected by inflation – are marginalized. Company and government sources top source lists in the media. It is argued that sources play an important role in shaping the news content. They do so by identifying problems and prescribing potential solutions. They set parameters and define terms of reference. However, media also play a mediating role. They do so by selecting sources and structuring sources in stories. They may chose to quote or report what their sources say and even comment on it. This study concludes that in South Africa ordinary citizens have no voices in economics debates. Media used bureaucratic sources only and that is a consonant agenda on inflation coverage amongst newspapers. The heavy reliance on bureaucratic sources and the exclusion of some sectors of society in sources lists raises questions about impartiality of these sources on issues relating to their organisations and institutions. These are not viable sources that could provide information that could expose abuse of power.
- Full Text:
- Date Issued: 2004
- Authors: Kula, Momelezi Michael
- Date: 2004
- Subjects: Journalism, Commercial -- South Africa , Inflation (Finance) -- South Africa , South Africa -- Newspapers , Mass media -- Political aspects -- Africa , Democracy , Journalism -- Social aspects
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3450 , http://hdl.handle.net/10962/d1002904 , Journalism, Commercial -- South Africa , Inflation (Finance) -- South Africa , South Africa -- Newspapers , Mass media -- Political aspects -- Africa , Democracy , Journalism -- Social aspects
- Description: There is a considerable amount of literature arguing that economics and business journalism is growing. This subfield of journalism is important as economics issues impact on everyday lives of the people. Media have an important role to inform people about the economy and give them a voice to take part in public debates. The down side though is that economics journalism is criticised for not serving the public well in this aspect. Evidence suggests that economics journalism lost its critical character and that there is closer in economics debates. Using content analysis, this study examines coverage of inflation as reported by South African print media. Three major findings emerged: 1) Evidence shows that there are a variety of cases of inflation. 2) There are also similarities among newspapers on what they view as causing inflation. 3) However, media do not draw sources from all sectors of society. The elite, who are educated people and government officials, are over-accessed while the ordinary citizens - although also affected by inflation – are marginalized. Company and government sources top source lists in the media. It is argued that sources play an important role in shaping the news content. They do so by identifying problems and prescribing potential solutions. They set parameters and define terms of reference. However, media also play a mediating role. They do so by selecting sources and structuring sources in stories. They may chose to quote or report what their sources say and even comment on it. This study concludes that in South Africa ordinary citizens have no voices in economics debates. Media used bureaucratic sources only and that is a consonant agenda on inflation coverage amongst newspapers. The heavy reliance on bureaucratic sources and the exclusion of some sectors of society in sources lists raises questions about impartiality of these sources on issues relating to their organisations and institutions. These are not viable sources that could provide information that could expose abuse of power.
- Full Text:
- Date Issued: 2004
I am going home
- Nduna, S., Xakayi, S., Rodolo, L. S., Mgidi, A., Magibisela, J., Nduma, S., Dubeni, T., Hangana, S., Composer not specified, Dargie, Dave
- Authors: Nduna, S. , Xakayi, S. , Rodolo, L. S. , Mgidi, A. , Magibisela, J. , Nduma, S. , Dubeni, T. , Hangana, S. , Composer not specified , Dargie, Dave
- Date: 2004
- Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Alice sa
- Language: IsiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/343185 , vital:62978 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC344a-06
- Description: UFH music students accompanied by different types of marimba
- Full Text: false
- Date Issued: 2004
- Authors: Nduna, S. , Xakayi, S. , Rodolo, L. S. , Mgidi, A. , Magibisela, J. , Nduma, S. , Dubeni, T. , Hangana, S. , Composer not specified , Dargie, Dave
- Date: 2004
- Subjects: Folk music , Sacred music , Field recordings , Africa, Sub-Saharan , Africa South Africa Alice sa
- Language: IsiXhosa
- Type: sound recordings , field recordings , sound recording-musical
- Identifier: http://hdl.handle.net/10962/343185 , vital:62978 , International Library of African Music, Rhodes University, Makhanda, South Africa , Dave Dargie Field Tapes, Rhodes University, Makhanda, South Africa , DDC344a-06
- Description: UFH music students accompanied by different types of marimba
- Full Text: false
- Date Issued: 2004
iLanga: A next generation VOIP-based, TDM-enabled PBX
- Authors: Penton J , Terzoli, Alfredo
- Date: 2004
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/427591 , vital:72449 , https://www.researchgate.net/profile/Alfredo-Terzoli/publication/228963823_iLanga_a_next_generation_VoIP-based_TDM-enabled_PBX/links/02bfe51344c9db1c75000000/iLanga-a-next-generation-VoIP-based-TDM-enabled-PBX.pdf
- Description: iLanga is a complete, cost-effective, computer-based PBX built and be-ing prepared as a commercial product at Rhodes University. Running on a single PC (in its minimal configuration), iLanga provides all the fea-tures of a conventional PBX together with full support for VoIP. In this paper we introduce and discuss iLanga’s architecture, emphasising its main components, Asterisk, SIP Express Router (SER) and OpenH323 Gatekeeper (OpenGK). We also discuss the development of new ser-vices and features in iLanga as well as the possibility to manage and customize it. The paper concludes with the description of a pilot de-ployment of iLanga that we are using to test and refine the system.
- Full Text:
- Date Issued: 2004
- Authors: Penton J , Terzoli, Alfredo
- Date: 2004
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/427591 , vital:72449 , https://www.researchgate.net/profile/Alfredo-Terzoli/publication/228963823_iLanga_a_next_generation_VoIP-based_TDM-enabled_PBX/links/02bfe51344c9db1c75000000/iLanga-a-next-generation-VoIP-based-TDM-enabled-PBX.pdf
- Description: iLanga is a complete, cost-effective, computer-based PBX built and be-ing prepared as a commercial product at Rhodes University. Running on a single PC (in its minimal configuration), iLanga provides all the fea-tures of a conventional PBX together with full support for VoIP. In this paper we introduce and discuss iLanga’s architecture, emphasising its main components, Asterisk, SIP Express Router (SER) and OpenH323 Gatekeeper (OpenGK). We also discuss the development of new ser-vices and features in iLanga as well as the possibility to manage and customize it. The paper concludes with the description of a pilot de-ployment of iLanga that we are using to test and refine the system.
- Full Text:
- Date Issued: 2004
Imagery and the transformation of meaning in psychotherapy for post-traumatic stress disorder: a hermeneutic case study
- Authors: Karpelowsky, Belinda Jodi
- Date: 2004
- Subjects: Post-traumatic stress disorder -- Treatment , Post-traumatic stress disorder -- Rehabilitation , Imagery (Psychology) -- Therapeutic use , Psychotherapy , Post-traumatic stress disorder -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3000 , http://hdl.handle.net/10962/d1002509 , Post-traumatic stress disorder -- Treatment , Post-traumatic stress disorder -- Rehabilitation , Imagery (Psychology) -- Therapeutic use , Psychotherapy , Post-traumatic stress disorder -- Case studies
- Description: This study discusses the assessment and treatment of a 21-year old male who had suffered multiple traumas, which had culminated in the death of his younger brother. He presented with Acute Stress Disorder. The literature review examines a diverse range of theorists and discourses, that have addressed the psychological consequences of trauma and highlights the complexity of the phenomena involved. The case study, located in the South African context, aims to sensitise the reader to the unique dilemmas facing each trauma survivor, and serves to highlight specifically those areas, which are pertinent and further more contribute significantly to the recovery process. The case narrative consists of a detailed synopsis of the therapy process, extracted from the session record notes documented at the time. Several other sources of information, including contributions from the participant, were used to verify and validate the accuracy of the data included. The narrative is written in a style that conveys the intensity of the nature of trauma work and the manner in which both patient and clinician are frequently confronted with very difficult emotional work. Finally the discussion examines the case narrative through the use of a set of carefully selected hermeneutic questions. These focused on (I) key concepts from the work of Robert Lifton who highlights the existential dimensions of the impact of trauma; (2) the role of the image in encapsulating the complex traumatic and post-traumatic experience of the survivor as well as facilitating the emotional processing of the trauma is examined; (3) the contribution to the process of therapy of aspects of the therapeutic relationship; and (4) the concept of recovery in relation to the question of what constitutes 'trauma work'. In conclusion, several meta-theoretical issues related to trauma, the strengths and weaknesses inherent to the research and relevant future areas of research are highlighted.
- Full Text:
- Date Issued: 2004
- Authors: Karpelowsky, Belinda Jodi
- Date: 2004
- Subjects: Post-traumatic stress disorder -- Treatment , Post-traumatic stress disorder -- Rehabilitation , Imagery (Psychology) -- Therapeutic use , Psychotherapy , Post-traumatic stress disorder -- Case studies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3000 , http://hdl.handle.net/10962/d1002509 , Post-traumatic stress disorder -- Treatment , Post-traumatic stress disorder -- Rehabilitation , Imagery (Psychology) -- Therapeutic use , Psychotherapy , Post-traumatic stress disorder -- Case studies
- Description: This study discusses the assessment and treatment of a 21-year old male who had suffered multiple traumas, which had culminated in the death of his younger brother. He presented with Acute Stress Disorder. The literature review examines a diverse range of theorists and discourses, that have addressed the psychological consequences of trauma and highlights the complexity of the phenomena involved. The case study, located in the South African context, aims to sensitise the reader to the unique dilemmas facing each trauma survivor, and serves to highlight specifically those areas, which are pertinent and further more contribute significantly to the recovery process. The case narrative consists of a detailed synopsis of the therapy process, extracted from the session record notes documented at the time. Several other sources of information, including contributions from the participant, were used to verify and validate the accuracy of the data included. The narrative is written in a style that conveys the intensity of the nature of trauma work and the manner in which both patient and clinician are frequently confronted with very difficult emotional work. Finally the discussion examines the case narrative through the use of a set of carefully selected hermeneutic questions. These focused on (I) key concepts from the work of Robert Lifton who highlights the existential dimensions of the impact of trauma; (2) the role of the image in encapsulating the complex traumatic and post-traumatic experience of the survivor as well as facilitating the emotional processing of the trauma is examined; (3) the contribution to the process of therapy of aspects of the therapeutic relationship; and (4) the concept of recovery in relation to the question of what constitutes 'trauma work'. In conclusion, several meta-theoretical issues related to trauma, the strengths and weaknesses inherent to the research and relevant future areas of research are highlighted.
- Full Text:
- Date Issued: 2004
Implementing an activity-based costing model
- Authors: Cohen, Howard
- Date: 2004
- Subjects: Activity-based costing , Managerial accounting
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8970 , http://hdl.handle.net/10948/240 , Activity-based costing , Managerial accounting
- Description: Activity-based costing (ABC) is a forward-looking product costing method. Unlike traditional volume-based approaches, which are historically oriented, ABC concepts guide managers in seeking the best strategies to pursue in the future. This product costing method can be a valuable tool in planning and managing costs not only in the manufacturing area, but also in all aspects of business operations, from product design to distribution. Although its main advantage is its ability to provide more realistic product cost information for financial reporting purposes, use of ABC can lead to a better understanding of the strategic linkages existing between the various cost areas in the organisation. It enables managers to have a holistic view of cost management. ABC was developed to better understand, manage and control the overheads. The brief fundamental of ABC is: Products consume activities, activities consume resources, and resources consume costs. Based upon this fundamental principle, ABC can trace the cost from resources to activities that are consumed by product manufacturing processes as well as from activities to products. ABC investigates the transactions that trigger cost instead of concentrating solely on measures of physical volume or a certain amount of labour hours. Compared to the traditional costing systems, ABC can not only answer how much product cost is but also tell executives the factors triggering costs and the way to manage costs. ABC helps managers make better decisions about product design, pricing, marketing, and mix and encourages continual improvement. Unlike the traditional method, instead of using the single pre-determined overhead rate to absorb the indirect cost to products, ABC uses actual incurred cost to v determine the product cost. By tracing the absorption process of indirect cost, ABC would provide more information to management and help it find better ways to manage costs. However, the cost drivers used in ABC are constants but the cost driver rates are continually changing. ABC still uses predetermined cost drivers so it has the same fundamental problem as the traditional methods for estimating.
- Full Text:
- Date Issued: 2004
- Authors: Cohen, Howard
- Date: 2004
- Subjects: Activity-based costing , Managerial accounting
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:8970 , http://hdl.handle.net/10948/240 , Activity-based costing , Managerial accounting
- Description: Activity-based costing (ABC) is a forward-looking product costing method. Unlike traditional volume-based approaches, which are historically oriented, ABC concepts guide managers in seeking the best strategies to pursue in the future. This product costing method can be a valuable tool in planning and managing costs not only in the manufacturing area, but also in all aspects of business operations, from product design to distribution. Although its main advantage is its ability to provide more realistic product cost information for financial reporting purposes, use of ABC can lead to a better understanding of the strategic linkages existing between the various cost areas in the organisation. It enables managers to have a holistic view of cost management. ABC was developed to better understand, manage and control the overheads. The brief fundamental of ABC is: Products consume activities, activities consume resources, and resources consume costs. Based upon this fundamental principle, ABC can trace the cost from resources to activities that are consumed by product manufacturing processes as well as from activities to products. ABC investigates the transactions that trigger cost instead of concentrating solely on measures of physical volume or a certain amount of labour hours. Compared to the traditional costing systems, ABC can not only answer how much product cost is but also tell executives the factors triggering costs and the way to manage costs. ABC helps managers make better decisions about product design, pricing, marketing, and mix and encourages continual improvement. Unlike the traditional method, instead of using the single pre-determined overhead rate to absorb the indirect cost to products, ABC uses actual incurred cost to v determine the product cost. By tracing the absorption process of indirect cost, ABC would provide more information to management and help it find better ways to manage costs. However, the cost drivers used in ABC are constants but the cost driver rates are continually changing. ABC still uses predetermined cost drivers so it has the same fundamental problem as the traditional methods for estimating.
- Full Text:
- Date Issued: 2004
In conversation with Barney: a critical discourse analysis of interaction between a child with autism and his co-participants
- Authors: Geils, Catherine
- Date: 2004
- Subjects: Autism in children -- Case studies , Autistic children , Autistic children -- Rehabilitation , Discourse analysis , Children and adults , Language acquisition , Conversation , Children -- Language
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2980 , http://hdl.handle.net/10962/d1002489 , Autism in children -- Case studies , Autistic children , Autistic children -- Rehabilitation , Discourse analysis , Children and adults , Language acquisition , Conversation , Children -- Language
- Description: My study arose in the context of an intervention programme aimed at the development of a child with autism’s communication and social interaction skills. The approach I take is a social constructionist one in which language is considered to be constructive and constitutive of social and psychological reality. This orientation challenges the assumptions of a western psychiatric approach that emphasizes the impairment and deficits associated with autism. The participants of the study are a 6-year-old boy diagnosed with Pervasive Developmental Disorder (Autistic Spectrum), and his mother, father, sister and a volunteer on the intervention programme. The discourse analytic method of conversation analysis is employed as a means of elucidating the collaborative mechanisms employed by both the child and his co-participants in making sense of one another. The specific aims of the study are to closely examine the communicative behaviour and interactive styles of the child and his coparticipants, their implications for communicative success (co-ordinated interaction) or breakdown (discordant interaction), and the implications for how the child is positioned within the discourse in relation to his co-participants. My constructions of the data suggested that a playful, activity-based interactive style constituted by non-verbal turns, affection and short, simple utterances enhance mutual participation and the accomplishment of co-ordinated interaction. Barney’s co-participants sometimes tend to dominate interaction and frequently employ a strategy of repetitive questioning, which functions to direct and constrain the interaction and results in the child’s withdrawal and discordant interaction. This tendency to withdraw, however, seems to function as a means by which the child is able to actively resist positioning by others, and thus constitutes himself in a position of greater power. Furthermore, his use of the pronoun ‘I’ and collaborative negotiation of the words yours and mine suggest the active co-construction and positioning of himself as a separate person in relation to his co-participants. This research informs intervention efforts and encourages the co-participants to reflect on how interaction is co-constructed between themselves and the child.
- Full Text:
- Date Issued: 2004
- Authors: Geils, Catherine
- Date: 2004
- Subjects: Autism in children -- Case studies , Autistic children , Autistic children -- Rehabilitation , Discourse analysis , Children and adults , Language acquisition , Conversation , Children -- Language
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2980 , http://hdl.handle.net/10962/d1002489 , Autism in children -- Case studies , Autistic children , Autistic children -- Rehabilitation , Discourse analysis , Children and adults , Language acquisition , Conversation , Children -- Language
- Description: My study arose in the context of an intervention programme aimed at the development of a child with autism’s communication and social interaction skills. The approach I take is a social constructionist one in which language is considered to be constructive and constitutive of social and psychological reality. This orientation challenges the assumptions of a western psychiatric approach that emphasizes the impairment and deficits associated with autism. The participants of the study are a 6-year-old boy diagnosed with Pervasive Developmental Disorder (Autistic Spectrum), and his mother, father, sister and a volunteer on the intervention programme. The discourse analytic method of conversation analysis is employed as a means of elucidating the collaborative mechanisms employed by both the child and his co-participants in making sense of one another. The specific aims of the study are to closely examine the communicative behaviour and interactive styles of the child and his coparticipants, their implications for communicative success (co-ordinated interaction) or breakdown (discordant interaction), and the implications for how the child is positioned within the discourse in relation to his co-participants. My constructions of the data suggested that a playful, activity-based interactive style constituted by non-verbal turns, affection and short, simple utterances enhance mutual participation and the accomplishment of co-ordinated interaction. Barney’s co-participants sometimes tend to dominate interaction and frequently employ a strategy of repetitive questioning, which functions to direct and constrain the interaction and results in the child’s withdrawal and discordant interaction. This tendency to withdraw, however, seems to function as a means by which the child is able to actively resist positioning by others, and thus constitutes himself in a position of greater power. Furthermore, his use of the pronoun ‘I’ and collaborative negotiation of the words yours and mine suggest the active co-construction and positioning of himself as a separate person in relation to his co-participants. This research informs intervention efforts and encourages the co-participants to reflect on how interaction is co-constructed between themselves and the child.
- Full Text:
- Date Issued: 2004