Evaluation of various proteomic techniques to identify proteins involved in cereal stress responses to aphid infestation
- Authors: Nqumla, Ntombekhaya
- Date: 2012
- Subjects: Aphids , Wheat , Plant proteomics , Rice
- Language: English
- Type: Thesis , Masters , MSc (Biochemistry)
- Identifier: vital:11270 , http://hdl.handle.net/10353/d1004572 , Aphids , Wheat , Plant proteomics , Rice
- Description: All plants are exposed to abiotic and biotic stresses and have developed intricate signalling responses to survive. They respond to cell-structure disruption caused by herbivore probing and feeding by the formation of callose. Callose is a linear homopolymer made up of β-1,3-linked glucose residues with some β-1,6-branches. Plant responses to abiotic or biotic stress share events such as phosphorylation, membrane depolarization, calcium influx and the release of reactive oxygen species such as hydrogen peroxide. These events lead to the up-regulation of several pathways leading to biosynthesis of signalling molecules such as salicylic acid, jasmonate, abscisic acid and ethylene pathways. The aim of this study was to determine the most suitable proteomic approach for identifying proteins and signalling pathways involved in cereal response to aphid infestation. An in silico approach was first evaluated in which the 5ʹ upstream regulatory region of proteins belonging to the family of callose synthases was scanned for cis-regulatory elements in order to identify which callose synthases are possibly expressed in plants during biotic or abiotic stresses. Bioinformatics tools were used in the identification of twelve Arabidopsis and ten rice callose synthase coding regions. Genome sequences for rice and Arabidopsis were scanned for the 2000 bp 5ʹ region upstream of the start codon of each callose synthase coding region. PlantCare, PLACE and Athena software were used to identify putative cis-regulatory elements present in the 2000 bp 5ʹ upstream sequences. The majority of cis-acting elements identified were involved in drought and high temperature responses and only one cis-acting element was involved in wound stress. These results therefore indicated a probable role for plant callose synthases in drought stress responses rather than in biotic stress responses. Genevestigator analysis of Arabidopsis results of micro-array experiments indicated that AtGSL10 is highly up-regulated, with AtGSL1, 3, 5, 6, 7, 8, 11 and 12 showing medium up-regulation and AtGSL2, 4 and 9 no up-regulation during aphid infestation of Arabidopsis plants, implicating a possible role for AtGSL10 in the plant response to aphid infestation. An LC/MS/MS approach was used to identify specific signalling pathways involved in wheat resistance or stress response to aphid infestation. Eight proteins were identified as being up-regulated during aphid feeding in wheat, and 11 proteins were identified as possibly involved in the wheat resistance mechanism against aphid infestation. Several proteins were also identified as constitutively expressed proteins, during normal conditions and aphid infestation. Most pathways identified with proteins up-regulated in the resistance mechanisms of TugelaDN plants, were related to energy metabolism and located in the chloroplast. Evaluation of two dimensional gel electrophoresis to identify phosphoproteins differentially regulated in wheat during aphid infestation, revealed the up-regulation of three proteins namely photosystem II oxygen-evolving complex protein 2, HVUNKNOWN from Hordeum vulgare subsp vulgare and HSKERAT9 NID from Homo sapiens. Additional 57 proteins were partially identified as involved in the stress response but due to low protein levels, the percentage of matching peptides to these proteins was below the required confidence level. Although these protein identifications were below the confidence level, it is interesting to note that several of the proteins are known stress response proteins, and therefore could serve as potential targets for future investigations. In conclusion, the down and up-regulation of wheat proteins after aphid feeding reported in this study suggest that several signalling pathways are involved in the cereal stress response to aphid feeding. In silico approaches require knowledge or identification of potential proteins whereas 2D and LC/MS can identify numerous proteins still unknown to be involved in specific stress responses. The 2D approach is also limited in that the proteins of interest may be in low abundance and therefore not detected in the gels due to the presence of high abundant proteins. Therefore the best approach to identify proteins and signalling pathways involved in the stress response of wheat to aphid infestation, is the LC/MS/MS approach, as this proved to be the most sensitive and robust, identifying the most proteins with a high degree of confidence.
- Full Text:
- Authors: Nqumla, Ntombekhaya
- Date: 2012
- Subjects: Aphids , Wheat , Plant proteomics , Rice
- Language: English
- Type: Thesis , Masters , MSc (Biochemistry)
- Identifier: vital:11270 , http://hdl.handle.net/10353/d1004572 , Aphids , Wheat , Plant proteomics , Rice
- Description: All plants are exposed to abiotic and biotic stresses and have developed intricate signalling responses to survive. They respond to cell-structure disruption caused by herbivore probing and feeding by the formation of callose. Callose is a linear homopolymer made up of β-1,3-linked glucose residues with some β-1,6-branches. Plant responses to abiotic or biotic stress share events such as phosphorylation, membrane depolarization, calcium influx and the release of reactive oxygen species such as hydrogen peroxide. These events lead to the up-regulation of several pathways leading to biosynthesis of signalling molecules such as salicylic acid, jasmonate, abscisic acid and ethylene pathways. The aim of this study was to determine the most suitable proteomic approach for identifying proteins and signalling pathways involved in cereal response to aphid infestation. An in silico approach was first evaluated in which the 5ʹ upstream regulatory region of proteins belonging to the family of callose synthases was scanned for cis-regulatory elements in order to identify which callose synthases are possibly expressed in plants during biotic or abiotic stresses. Bioinformatics tools were used in the identification of twelve Arabidopsis and ten rice callose synthase coding regions. Genome sequences for rice and Arabidopsis were scanned for the 2000 bp 5ʹ region upstream of the start codon of each callose synthase coding region. PlantCare, PLACE and Athena software were used to identify putative cis-regulatory elements present in the 2000 bp 5ʹ upstream sequences. The majority of cis-acting elements identified were involved in drought and high temperature responses and only one cis-acting element was involved in wound stress. These results therefore indicated a probable role for plant callose synthases in drought stress responses rather than in biotic stress responses. Genevestigator analysis of Arabidopsis results of micro-array experiments indicated that AtGSL10 is highly up-regulated, with AtGSL1, 3, 5, 6, 7, 8, 11 and 12 showing medium up-regulation and AtGSL2, 4 and 9 no up-regulation during aphid infestation of Arabidopsis plants, implicating a possible role for AtGSL10 in the plant response to aphid infestation. An LC/MS/MS approach was used to identify specific signalling pathways involved in wheat resistance or stress response to aphid infestation. Eight proteins were identified as being up-regulated during aphid feeding in wheat, and 11 proteins were identified as possibly involved in the wheat resistance mechanism against aphid infestation. Several proteins were also identified as constitutively expressed proteins, during normal conditions and aphid infestation. Most pathways identified with proteins up-regulated in the resistance mechanisms of TugelaDN plants, were related to energy metabolism and located in the chloroplast. Evaluation of two dimensional gel electrophoresis to identify phosphoproteins differentially regulated in wheat during aphid infestation, revealed the up-regulation of three proteins namely photosystem II oxygen-evolving complex protein 2, HVUNKNOWN from Hordeum vulgare subsp vulgare and HSKERAT9 NID from Homo sapiens. Additional 57 proteins were partially identified as involved in the stress response but due to low protein levels, the percentage of matching peptides to these proteins was below the required confidence level. Although these protein identifications were below the confidence level, it is interesting to note that several of the proteins are known stress response proteins, and therefore could serve as potential targets for future investigations. In conclusion, the down and up-regulation of wheat proteins after aphid feeding reported in this study suggest that several signalling pathways are involved in the cereal stress response to aphid feeding. In silico approaches require knowledge or identification of potential proteins whereas 2D and LC/MS can identify numerous proteins still unknown to be involved in specific stress responses. The 2D approach is also limited in that the proteins of interest may be in low abundance and therefore not detected in the gels due to the presence of high abundant proteins. Therefore the best approach to identify proteins and signalling pathways involved in the stress response of wheat to aphid infestation, is the LC/MS/MS approach, as this proved to be the most sensitive and robust, identifying the most proteins with a high degree of confidence.
- Full Text:
Exchange rates and economic growth in emerging economies: the case of South Africa
- Authors: Sibanda, Bornapart
- Date: 2012
- Subjects: Economic development , Currency convertibility -- South Africa , Foreign exchange -- South Africa , Foreign exchange rates -- South Africa , Foreign exchange administration -- South Africa , South Africa -- Economic conditions
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11464 , http://hdl.handle.net/10353/d1007045 , Economic development , Currency convertibility -- South Africa , Foreign exchange -- South Africa , Foreign exchange rates -- South Africa , Foreign exchange administration -- South Africa , South Africa -- Economic conditions
- Description: This study examines the impact of exchange rate volatility and misalignment on economic growth in South Africa. It applies the Johansen co integration test and the vector error correction model on quarterly data for the period 1990:01-2010:04. Exchange rate volatility is measured as the standard deviation of both the nominal and nominal effective exchange rate. The study constructs three measures of exchange rate misalignment, with two of the measures constructed using the Producer Price Index and Consumer Price index based Purchasing Power Parity. The third measure was based on the difference between the nominal and effective exchange rate. Contrary to pre-dominant findings in the exchange rate literature, the study finds a positive and significant relationship between exchange rate volatility and economic growth and attributes it to composition of the country’s exports that are largely made up of commodities that act as essential inputs in many production processes. As a result, the variability of prices caused by exchange rate volatility is not expected to deter demand for these commodities. A negative and significant relationship between exchange rate misalignment and economic growth was found. The findings of the study show that it is important for monetary authorities to ensure that the exchange rate is always at an appropriate level in order to avoid the negative implications of exchange rate misalignment on economic growth.
- Full Text:
- Authors: Sibanda, Bornapart
- Date: 2012
- Subjects: Economic development , Currency convertibility -- South Africa , Foreign exchange -- South Africa , Foreign exchange rates -- South Africa , Foreign exchange administration -- South Africa , South Africa -- Economic conditions
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11464 , http://hdl.handle.net/10353/d1007045 , Economic development , Currency convertibility -- South Africa , Foreign exchange -- South Africa , Foreign exchange rates -- South Africa , Foreign exchange administration -- South Africa , South Africa -- Economic conditions
- Description: This study examines the impact of exchange rate volatility and misalignment on economic growth in South Africa. It applies the Johansen co integration test and the vector error correction model on quarterly data for the period 1990:01-2010:04. Exchange rate volatility is measured as the standard deviation of both the nominal and nominal effective exchange rate. The study constructs three measures of exchange rate misalignment, with two of the measures constructed using the Producer Price Index and Consumer Price index based Purchasing Power Parity. The third measure was based on the difference between the nominal and effective exchange rate. Contrary to pre-dominant findings in the exchange rate literature, the study finds a positive and significant relationship between exchange rate volatility and economic growth and attributes it to composition of the country’s exports that are largely made up of commodities that act as essential inputs in many production processes. As a result, the variability of prices caused by exchange rate volatility is not expected to deter demand for these commodities. A negative and significant relationship between exchange rate misalignment and economic growth was found. The findings of the study show that it is important for monetary authorities to ensure that the exchange rate is always at an appropriate level in order to avoid the negative implications of exchange rate misalignment on economic growth.
- Full Text:
Experiences by orphaned children as learners at a Secondary School in the Maluti District of Education in the Eastern Cape
- Authors: Jackson, David Moses
- Date: 2012
- Subjects: Learning -- South Africa -- Eastern Cape , Orphans -- Education -- South Africa -- Eastern Cape , School children -- South Africa -- Eastern Cape , Orphans -- South Africa -- Eastern Cape , High school students -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16187 , http://hdl.handle.net/10353/d1006247 , Learning -- South Africa -- Eastern Cape , Orphans -- Education -- South Africa -- Eastern Cape , School children -- South Africa -- Eastern Cape , Orphans -- South Africa -- Eastern Cape , High school students -- South Africa -- Eastern Cape
- Description: The aim of this study was to investigate the schooling experiences of four orphaned learners at Mandini Secondary School in the Maluti District of Education in the Eastern Cape. The study adopted a qualitative research methodology and a phenomenological research design. Purposive sampling was adopted and the tape recorded narrative responses of all four respondents, were obtained from the use of in-depth phenomenological unstructured interviews. The respondents were four orphaned children (two males and two females) between the ages of fifteen and twenty years. The study used the Social Rupture Theory as lenses of analysis of the findings. This was considered a very sensitive topic because the respondents had to relate issues which could result in them reliving traumatic experiences. As a result more attention was paid on ethical issues and making the respondents feel comfortable. The respondents were capable of distinguishing between their quality of life while their parents were still alive and well; when they (the parent[s]) became sick and when they eventually died. Furthermore, the respondents highlighted the negative effects of parental absence in their education. In addition, these orphaned children formed relationships with the school community after their parents’ death which, to some extent, had a positive effect on their schooling. Based on these findings the study suggests that educators need to be trained in diagnosing psycho-social problems and given skills to deal with them. Similarly, short courses should be organized for guardians and community development workers in identifying and counseling of problems.
- Full Text:
- Authors: Jackson, David Moses
- Date: 2012
- Subjects: Learning -- South Africa -- Eastern Cape , Orphans -- Education -- South Africa -- Eastern Cape , School children -- South Africa -- Eastern Cape , Orphans -- South Africa -- Eastern Cape , High school students -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16187 , http://hdl.handle.net/10353/d1006247 , Learning -- South Africa -- Eastern Cape , Orphans -- Education -- South Africa -- Eastern Cape , School children -- South Africa -- Eastern Cape , Orphans -- South Africa -- Eastern Cape , High school students -- South Africa -- Eastern Cape
- Description: The aim of this study was to investigate the schooling experiences of four orphaned learners at Mandini Secondary School in the Maluti District of Education in the Eastern Cape. The study adopted a qualitative research methodology and a phenomenological research design. Purposive sampling was adopted and the tape recorded narrative responses of all four respondents, were obtained from the use of in-depth phenomenological unstructured interviews. The respondents were four orphaned children (two males and two females) between the ages of fifteen and twenty years. The study used the Social Rupture Theory as lenses of analysis of the findings. This was considered a very sensitive topic because the respondents had to relate issues which could result in them reliving traumatic experiences. As a result more attention was paid on ethical issues and making the respondents feel comfortable. The respondents were capable of distinguishing between their quality of life while their parents were still alive and well; when they (the parent[s]) became sick and when they eventually died. Furthermore, the respondents highlighted the negative effects of parental absence in their education. In addition, these orphaned children formed relationships with the school community after their parents’ death which, to some extent, had a positive effect on their schooling. Based on these findings the study suggests that educators need to be trained in diagnosing psycho-social problems and given skills to deal with them. Similarly, short courses should be organized for guardians and community development workers in identifying and counseling of problems.
- Full Text:
Exploring the influence of mindfulness-based stress reduction (MBSR) programmes on participants experience of time, particularly the present (here and now): a case study of Eastern Cape participants
- Authors: Schofield, Lorna
- Date: 2012
- Subjects: Acceptance and commitment therapy , Stress management , Depression, Mental -- Treatment
- Language: English
- Type: Thesis , Masters , M Soc Sc (C Psy)
- Identifier: vital:11611 , http://hdl.handle.net/10353/d1005640
- Description: This study aims to explore the extent to which participating in a Mindfulness-Based Stress Reduction (MBSR) programme may result in shifts in people’s relationship with time, notably whether they become more present-focussed. The eight week MBSR programme advocates mindfulness, which is defined as paying attention on purpose in the present moment without judgement, as a way of reducing stress. The programme has been available in East London since 2009. A case study of eight MBSR programme participants’ experiences using narrative analysis was conducted. Narrative psychology and social constructionism provided the theoretical basis in which our storied lives are located in culturally inscribed narratives, with specific discourses around time and stress. Time discourses tend to pressurise people to believe that it is better to go about daily life at a fast pace, which requires significant hurrying and rushing with pervasive senses of time urgency. Stress discourse locates stress management within individuals. One-on-one semi structured interviews were held so that participants could reflect on their experience of time and the present moment orientation of the programme. Participants’ perceived a shift in how they experienced time with greater awareness of being present-focussed and they identified stress reduction benefits, which included feeling calmer, less panicked and more self-accepting. However, some of the participants maintaining the formal mindfulness practices like the body scan, meditation and mindful movement after the programme often proved difficult, as they were drawn back into their dominant narratives around time which were characterised by busyness, productivity and time scarcity.
- Full Text:
- Authors: Schofield, Lorna
- Date: 2012
- Subjects: Acceptance and commitment therapy , Stress management , Depression, Mental -- Treatment
- Language: English
- Type: Thesis , Masters , M Soc Sc (C Psy)
- Identifier: vital:11611 , http://hdl.handle.net/10353/d1005640
- Description: This study aims to explore the extent to which participating in a Mindfulness-Based Stress Reduction (MBSR) programme may result in shifts in people’s relationship with time, notably whether they become more present-focussed. The eight week MBSR programme advocates mindfulness, which is defined as paying attention on purpose in the present moment without judgement, as a way of reducing stress. The programme has been available in East London since 2009. A case study of eight MBSR programme participants’ experiences using narrative analysis was conducted. Narrative psychology and social constructionism provided the theoretical basis in which our storied lives are located in culturally inscribed narratives, with specific discourses around time and stress. Time discourses tend to pressurise people to believe that it is better to go about daily life at a fast pace, which requires significant hurrying and rushing with pervasive senses of time urgency. Stress discourse locates stress management within individuals. One-on-one semi structured interviews were held so that participants could reflect on their experience of time and the present moment orientation of the programme. Participants’ perceived a shift in how they experienced time with greater awareness of being present-focussed and they identified stress reduction benefits, which included feeling calmer, less panicked and more self-accepting. However, some of the participants maintaining the formal mindfulness practices like the body scan, meditation and mindful movement after the programme often proved difficult, as they were drawn back into their dominant narratives around time which were characterised by busyness, productivity and time scarcity.
- Full Text:
Factors that conduce towards domestic violence against rural women a case study of Sisonke District Municipality KwaZulu Natal
- Authors: Nyathi, Noluvo Annagratia
- Date: 2012
- Subjects: Spousal abuse -- South Africa -- KwaZulu Natal , Human rights -- South Africa , Crimes against -- Women , Legal status laws etc -- South Africa -- KwaZulu Natal , Domestic Violence -- KwaZulu Natal -- South Africa
- Language: English
- Type: Thesis , Masters , MA (Human Rights)
- Identifier: vital:11100 , http://hdl.handle.net/10353/509 , Spousal abuse -- South Africa -- KwaZulu Natal , Human rights -- South Africa , Crimes against -- Women , Legal status laws etc -- South Africa -- KwaZulu Natal , Domestic Violence -- KwaZulu Natal -- South Africa
- Description: In all the Black communities, women’s rights have always been taken for granted. Women have always been subordinate to the patriarchal system. The denial of domestic violence against rural women has its origin in the age long patriarchal society, deeply rooted in culture and tradition. The main aim of the patriarchal society is the control of women by men. The idea of protecting women abuse is not really new. It is a necessary component of long established and internationally recognized human rights. This includes the right to equality and freedom, liberty and personal security. The recognition could be traced to the adoption of the Universal Declaration of Human Rights of 1948 (UDHR). However, women’s rights remain unrealized and are continuously violated despite the fact that these rights are well expressed in many international documents and national laws. The study examined the factors that conduce towards domestic violence against rural women in the Kwa Zulu Natal Province of South Africa. In this regard, the reasons why they support culture and traditional practices that are detrimental to their health were also explored. The small isolated area of Umzimkhulu was used. In-depth face to face interviews were employed to elicit information from the respondents and brief notes were written down to collect the data. The findings revealed that women are not aware of their human rights. This ignorance and negative attitude is influenced by the dependency of women to men, supremacy of the patriarchal system and the dominance of culture. Most disturbing is that these women don’t seem to see anything wrong with the situation. It is evidently clear therefore that women empowerment, through education, will not only affect women’s autonomy but will also increase their worth and make them understand the impact of traditional practices that they support. All these will have implications for policy and legislative interventions.
- Full Text:
- Authors: Nyathi, Noluvo Annagratia
- Date: 2012
- Subjects: Spousal abuse -- South Africa -- KwaZulu Natal , Human rights -- South Africa , Crimes against -- Women , Legal status laws etc -- South Africa -- KwaZulu Natal , Domestic Violence -- KwaZulu Natal -- South Africa
- Language: English
- Type: Thesis , Masters , MA (Human Rights)
- Identifier: vital:11100 , http://hdl.handle.net/10353/509 , Spousal abuse -- South Africa -- KwaZulu Natal , Human rights -- South Africa , Crimes against -- Women , Legal status laws etc -- South Africa -- KwaZulu Natal , Domestic Violence -- KwaZulu Natal -- South Africa
- Description: In all the Black communities, women’s rights have always been taken for granted. Women have always been subordinate to the patriarchal system. The denial of domestic violence against rural women has its origin in the age long patriarchal society, deeply rooted in culture and tradition. The main aim of the patriarchal society is the control of women by men. The idea of protecting women abuse is not really new. It is a necessary component of long established and internationally recognized human rights. This includes the right to equality and freedom, liberty and personal security. The recognition could be traced to the adoption of the Universal Declaration of Human Rights of 1948 (UDHR). However, women’s rights remain unrealized and are continuously violated despite the fact that these rights are well expressed in many international documents and national laws. The study examined the factors that conduce towards domestic violence against rural women in the Kwa Zulu Natal Province of South Africa. In this regard, the reasons why they support culture and traditional practices that are detrimental to their health were also explored. The small isolated area of Umzimkhulu was used. In-depth face to face interviews were employed to elicit information from the respondents and brief notes were written down to collect the data. The findings revealed that women are not aware of their human rights. This ignorance and negative attitude is influenced by the dependency of women to men, supremacy of the patriarchal system and the dominance of culture. Most disturbing is that these women don’t seem to see anything wrong with the situation. It is evidently clear therefore that women empowerment, through education, will not only affect women’s autonomy but will also increase their worth and make them understand the impact of traditional practices that they support. All these will have implications for policy and legislative interventions.
- Full Text:
Farmers` perceptions of livestock feeding and rangeland management: dynamics of soil, forage and cattle blood serum mineral levels in two communal areas of the Eastern Cape, South Africa
- Authors: Gwelo, Farai Alice
- Date: 2012
- Subjects: Range management -- South Africa -- Eastern Cape , Animal feeding -- South Africa -- Eastern Cape , Livestock -- Breeding -- South Africa -- Eastern Cape , Communal rangelands -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Pasture Science)
- Identifier: vital:11581 , http://hdl.handle.net/10353/d1006785 , Range management -- South Africa -- Eastern Cape , Animal feeding -- South Africa -- Eastern Cape , Livestock -- Breeding -- South Africa -- Eastern Cape , Communal rangelands -- South Africa -- Eastern Cape
- Description: This study was conducted to determine livestock production, rangeland management and the mineral levels of soils, grass and cattle blood serum in two communal areas (Kwezana and Dikidikana). A total of 77 farmers from both Kwezana and Dikidikana were interviewed to determine farmers’ perceptions. Soil and grass sampling was done at three sites in each communal area. Soil and grass samples were analysed for N, Ca, Mg, K, P, Fe, Cu, Zn, Mn and Bo. Three, two and half year old Nguni heifers were randomly selected from each communal area and blood samples were collected for the analysis of Ca, Mg, K, Cu and Fe. Soil, grass and blood samples were all collected in two seasons (winter and summer). The results of the study revealed that feed availability was the major constraint in livestock production as indicated by 83 percent of thefarmers at Kwezana and 88 percent at Dikidikana. At both villages less than 20 percent practiced supplementation and grazing management. From both villages, 83 percent of the farmers did not know the forage species preferred by their cattle. The second study revealed significant seasonal variations in soil N in both study areas while forage N exhibited seasonal variations (P<0.05) only at Dikidikana. Spatial variation (P<0.05) in soil Mn was apparent in both seasons at Dikidikana and in summer at Kwezana. At Dikidikana forage P varied (P<0.05) both seasonally and spatially. In both study areas, there was a positive correlation (P<0.05) between soil and forage levels of Cu and Zn. The blood serum of animals from both study areas had higher (P<0.05) K and Na in winter than in summer. Farmers do not understand the composition of their rangelands but are concerned about cattle nutrition during winter. Indeed the mineral status of soils, forages and Nguni cattle blood serum tend to vary not only seasonally but also spatially. There is need therefore to assist the farmers to understand these changes in order to find ways of managing the rangelands in a way that will manipulate both seasonal and spatial variations in soil nutrients for the benefit of the grazing livestock. Further research is required to determine the digestibility of the forages and the amount of energy available from these forages for the grazing livestock.
- Full Text:
- Authors: Gwelo, Farai Alice
- Date: 2012
- Subjects: Range management -- South Africa -- Eastern Cape , Animal feeding -- South Africa -- Eastern Cape , Livestock -- Breeding -- South Africa -- Eastern Cape , Communal rangelands -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Pasture Science)
- Identifier: vital:11581 , http://hdl.handle.net/10353/d1006785 , Range management -- South Africa -- Eastern Cape , Animal feeding -- South Africa -- Eastern Cape , Livestock -- Breeding -- South Africa -- Eastern Cape , Communal rangelands -- South Africa -- Eastern Cape
- Description: This study was conducted to determine livestock production, rangeland management and the mineral levels of soils, grass and cattle blood serum in two communal areas (Kwezana and Dikidikana). A total of 77 farmers from both Kwezana and Dikidikana were interviewed to determine farmers’ perceptions. Soil and grass sampling was done at three sites in each communal area. Soil and grass samples were analysed for N, Ca, Mg, K, P, Fe, Cu, Zn, Mn and Bo. Three, two and half year old Nguni heifers were randomly selected from each communal area and blood samples were collected for the analysis of Ca, Mg, K, Cu and Fe. Soil, grass and blood samples were all collected in two seasons (winter and summer). The results of the study revealed that feed availability was the major constraint in livestock production as indicated by 83 percent of thefarmers at Kwezana and 88 percent at Dikidikana. At both villages less than 20 percent practiced supplementation and grazing management. From both villages, 83 percent of the farmers did not know the forage species preferred by their cattle. The second study revealed significant seasonal variations in soil N in both study areas while forage N exhibited seasonal variations (P<0.05) only at Dikidikana. Spatial variation (P<0.05) in soil Mn was apparent in both seasons at Dikidikana and in summer at Kwezana. At Dikidikana forage P varied (P<0.05) both seasonally and spatially. In both study areas, there was a positive correlation (P<0.05) between soil and forage levels of Cu and Zn. The blood serum of animals from both study areas had higher (P<0.05) K and Na in winter than in summer. Farmers do not understand the composition of their rangelands but are concerned about cattle nutrition during winter. Indeed the mineral status of soils, forages and Nguni cattle blood serum tend to vary not only seasonally but also spatially. There is need therefore to assist the farmers to understand these changes in order to find ways of managing the rangelands in a way that will manipulate both seasonal and spatial variations in soil nutrients for the benefit of the grazing livestock. Further research is required to determine the digestibility of the forages and the amount of energy available from these forages for the grazing livestock.
- Full Text:
Financial liberalisation and economic growth in South Africa
- Sibanda, Hlanganani Siqondile.
- Authors: Sibanda, Hlanganani Siqondile.
- Date: 2012
- Subjects: Economic development -- South Africa , Monetary policy -- South Africa , Finance -- Management , Capital movements -- South Africa , Free trade -- South Africa , Expenditures, Public
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11471 , http://hdl.handle.net/10353/d1007131 , Economic development -- South Africa , Monetary policy -- South Africa , Finance -- Management , Capital movements -- South Africa , Free trade -- South Africa , Expenditures, Public
- Description: This study examined the impact of financial liberalisation on economic growth in South Africa. The study used quarterly time series data for the period 1980 to 2010. A vector error correction model was used to determine the short run and long run effects of financial liberalisation on economic growth in South Africa. The other explanatory variables considered in this study were government expenditure, investment ratio, public expenditure on education and trade openness. Results from this study revealed that financial liberalisation, government expenditure and public expenditure on education have a positive impact on economic growth while trade openness negatively affects economic growth in South Africa. Policy recommendations were made using these results.
- Full Text:
- Authors: Sibanda, Hlanganani Siqondile.
- Date: 2012
- Subjects: Economic development -- South Africa , Monetary policy -- South Africa , Finance -- Management , Capital movements -- South Africa , Free trade -- South Africa , Expenditures, Public
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11471 , http://hdl.handle.net/10353/d1007131 , Economic development -- South Africa , Monetary policy -- South Africa , Finance -- Management , Capital movements -- South Africa , Free trade -- South Africa , Expenditures, Public
- Description: This study examined the impact of financial liberalisation on economic growth in South Africa. The study used quarterly time series data for the period 1980 to 2010. A vector error correction model was used to determine the short run and long run effects of financial liberalisation on economic growth in South Africa. The other explanatory variables considered in this study were government expenditure, investment ratio, public expenditure on education and trade openness. Results from this study revealed that financial liberalisation, government expenditure and public expenditure on education have a positive impact on economic growth while trade openness negatively affects economic growth in South Africa. Policy recommendations were made using these results.
- Full Text:
Foreign direct investment in South Africa: the case of the East London industrial development zone
- Authors: Marawu, Sithembele
- Date: 2012
- Subjects: Investments, Foreign -- South Africa -- East London , Job creation -- South Africa -- East London
- Language: English
- Type: Thesis , Masters , M Soc Sc (Rural Development)
- Identifier: vital:11942 , http://hdl.handle.net/10353/559 , Investments, Foreign -- South Africa -- East London , Job creation -- South Africa -- East London
- Description: Foreign Direct Investment (FDI) has been perceived by most developing countries, emerging economies and countries in transition as a major vehicle for development that would not only boost a host country’s economic development but also enhance its integration into the global economy. The common assumption is that presence of foreign companies in a host country, particularly a developing country, would lead to economic benefits; among them, transfer of technology, and skills and human capacity development. The establishment of special “development zones” and the roll-out of incentives to attract FDI are often predicated on the expectation by host countries that these benefits would be achieved. It is against this background that this study sought to find out the character of FDI in the East London Industrial Development Zone (ELIDZ), located in the Eastern Cape. The study focused on the institutional preconditions and incentives used by the ELIDZ to attract FDI into the zone, and on whether these had any bearing on labour and environmental standards as well as on local skills development. Empirical data for the study were collected using in-depth interview with senior management staff of both the ELIDZ as an organisation, and one of the foreign companies located in the zone (a “tenant” of ELIDZ). In addition, a mini survey was conducted with a random sample of employees of the selected ELIDZ company. Among the key findings of the study was that the ELIDZ had in place a range of incentives and preconditions for the attraction of FDI, and that there were concerted efforts on the part of ELIDZ management to compel companies operating in the zone to adhere to specific iv standards – especially on the environmental front. From the mini survey results, however, the study established that achievements on the labour front were mixed. While most of the responses indicated that ELIDZ was playing a positive role in terms of employment creation, a high number of responses (from surveyed employees in the selected ELIDZ company) pointed out that employment standards were in question. For example, 41% of respondents reported “unhappiness” with their conditions of employment, while 50% deplored the fact that they were not allowed to belong to unions. Furthermore, responses were nearly evenly split (53%/47%) between those who reported that their employment had resulted in the acquisition of new skills and those who reported that it had not. From these and other findings, the study concluded that ELIDZ was facing a “balancing act” by expecting foreign companies to create jobs, transfer technology and contribute to local skills development while at the same time adhering to strict environmental and labour standards. The study thus confirmed a major consensus in the FDI literature, while FDI could bring about important socio-economic achievements in a host country, foreign companies and host governments are not necessarily motivated by the same set of factors. Indeed, at least a small facet of the study’s findings seemed to confirm the well-documented anti-FDI sentiment that the faith placed in FDI by host governments (especially in developing countries) does not always have a sound basis.
- Full Text:
- Authors: Marawu, Sithembele
- Date: 2012
- Subjects: Investments, Foreign -- South Africa -- East London , Job creation -- South Africa -- East London
- Language: English
- Type: Thesis , Masters , M Soc Sc (Rural Development)
- Identifier: vital:11942 , http://hdl.handle.net/10353/559 , Investments, Foreign -- South Africa -- East London , Job creation -- South Africa -- East London
- Description: Foreign Direct Investment (FDI) has been perceived by most developing countries, emerging economies and countries in transition as a major vehicle for development that would not only boost a host country’s economic development but also enhance its integration into the global economy. The common assumption is that presence of foreign companies in a host country, particularly a developing country, would lead to economic benefits; among them, transfer of technology, and skills and human capacity development. The establishment of special “development zones” and the roll-out of incentives to attract FDI are often predicated on the expectation by host countries that these benefits would be achieved. It is against this background that this study sought to find out the character of FDI in the East London Industrial Development Zone (ELIDZ), located in the Eastern Cape. The study focused on the institutional preconditions and incentives used by the ELIDZ to attract FDI into the zone, and on whether these had any bearing on labour and environmental standards as well as on local skills development. Empirical data for the study were collected using in-depth interview with senior management staff of both the ELIDZ as an organisation, and one of the foreign companies located in the zone (a “tenant” of ELIDZ). In addition, a mini survey was conducted with a random sample of employees of the selected ELIDZ company. Among the key findings of the study was that the ELIDZ had in place a range of incentives and preconditions for the attraction of FDI, and that there were concerted efforts on the part of ELIDZ management to compel companies operating in the zone to adhere to specific iv standards – especially on the environmental front. From the mini survey results, however, the study established that achievements on the labour front were mixed. While most of the responses indicated that ELIDZ was playing a positive role in terms of employment creation, a high number of responses (from surveyed employees in the selected ELIDZ company) pointed out that employment standards were in question. For example, 41% of respondents reported “unhappiness” with their conditions of employment, while 50% deplored the fact that they were not allowed to belong to unions. Furthermore, responses were nearly evenly split (53%/47%) between those who reported that their employment had resulted in the acquisition of new skills and those who reported that it had not. From these and other findings, the study concluded that ELIDZ was facing a “balancing act” by expecting foreign companies to create jobs, transfer technology and contribute to local skills development while at the same time adhering to strict environmental and labour standards. The study thus confirmed a major consensus in the FDI literature, while FDI could bring about important socio-economic achievements in a host country, foreign companies and host governments are not necessarily motivated by the same set of factors. Indeed, at least a small facet of the study’s findings seemed to confirm the well-documented anti-FDI sentiment that the faith placed in FDI by host governments (especially in developing countries) does not always have a sound basis.
- Full Text:
Government-sponsored community development projects as poverty alleviation tools: evidence from Mdantsane, East London
- Authors: Gedze, Ntombebhongo
- Date: 2012
- Subjects: Community development -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Agriculture and state -- South Africa -- Eastern Cape , Eastern Cape -- South Africa , Poverty alleviation , Community participation , Mdantsane Township
- Language: English
- Type: Thesis , Masters , M Soc Sc (Rural Development)
- Identifier: vital:11948 , http://hdl.handle.net/10353/d1005995 , Community development -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Agriculture and state -- South Africa -- Eastern Cape , Eastern Cape -- South Africa , Poverty alleviation , Community participation , Mdantsane Township
- Description: The study investigates whether government-sponsored community development projects in the township of Mdantsane, Buffalo City Metropolitan Municipality, South Africa, have achieved the intended goal of alleviating poverty among the beneficiaries. The specific outcomes of poverty alleviation are: improved income, acquisition of new skills, reduced dependence on welfare grants. Four urban farming projects were selected, namely: Buffalo City Organic Producers, Sakhisizwe Nursery, Lusindiso Farmer’s Trading Co-operative and Mbombela Co-operative. Focus group discussions and a mini survey were conducted with project beneficiaries, while relevant government officials were interviewed. Conceptual insights were drawn from community development theory. The findings showed that the broader context within which the projects occurred was characterised by a pro-poor social policy, relative availability of resources with which to translate it into action, and a measure of entrepreneurial potential amongst community members. However, while one of the projects showed some promise (in the sense that beneficiaries acquired new skills and had a generally positive attitude despite not enjoying any improved income status), all the others appeared doomed and trapped in dynamics such as: excessive government control of the management of the initiatives, ineffective project monitoring, and the mischaracterisation of the initiatives by both the government and the beneficiaries. A distorted sense of ownership and perverse community participation seemed to prevail, which in turn robbed the initiatives of their poverty alleviation potential. The study thus concluded that specific benefactor-beneficiary dynamics are crucial for the success of a given anti-poverty intervention. A robust pro-poor social policy, availability of resources with which to translate it into action, and local entrepreneurial potential do not in themselves bring about success; they must operate in a certain way and be undergirded by certain principles for them to become a powerful mechanism for alleviating poverty. It is against this background that the researcher offers some recommendations.
- Full Text:
- Authors: Gedze, Ntombebhongo
- Date: 2012
- Subjects: Community development -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Agriculture and state -- South Africa -- Eastern Cape , Eastern Cape -- South Africa , Poverty alleviation , Community participation , Mdantsane Township
- Language: English
- Type: Thesis , Masters , M Soc Sc (Rural Development)
- Identifier: vital:11948 , http://hdl.handle.net/10353/d1005995 , Community development -- South Africa -- Eastern Cape , Economic development projects -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Agriculture and state -- South Africa -- Eastern Cape , Eastern Cape -- South Africa , Poverty alleviation , Community participation , Mdantsane Township
- Description: The study investigates whether government-sponsored community development projects in the township of Mdantsane, Buffalo City Metropolitan Municipality, South Africa, have achieved the intended goal of alleviating poverty among the beneficiaries. The specific outcomes of poverty alleviation are: improved income, acquisition of new skills, reduced dependence on welfare grants. Four urban farming projects were selected, namely: Buffalo City Organic Producers, Sakhisizwe Nursery, Lusindiso Farmer’s Trading Co-operative and Mbombela Co-operative. Focus group discussions and a mini survey were conducted with project beneficiaries, while relevant government officials were interviewed. Conceptual insights were drawn from community development theory. The findings showed that the broader context within which the projects occurred was characterised by a pro-poor social policy, relative availability of resources with which to translate it into action, and a measure of entrepreneurial potential amongst community members. However, while one of the projects showed some promise (in the sense that beneficiaries acquired new skills and had a generally positive attitude despite not enjoying any improved income status), all the others appeared doomed and trapped in dynamics such as: excessive government control of the management of the initiatives, ineffective project monitoring, and the mischaracterisation of the initiatives by both the government and the beneficiaries. A distorted sense of ownership and perverse community participation seemed to prevail, which in turn robbed the initiatives of their poverty alleviation potential. The study thus concluded that specific benefactor-beneficiary dynamics are crucial for the success of a given anti-poverty intervention. A robust pro-poor social policy, availability of resources with which to translate it into action, and local entrepreneurial potential do not in themselves bring about success; they must operate in a certain way and be undergirded by certain principles for them to become a powerful mechanism for alleviating poverty. It is against this background that the researcher offers some recommendations.
- Full Text:
Hiv/Aids communication and youth behaviour in South Africa: a study of female high school students in the Eastern Cape Province
- Authors: Mpofu, Nkosinothando
- Date: 2012
- Subjects: HIV infections -- Social aspects -- South Africa , AIDS (Disease) -- Social aspects -- South Africa , Communication in public health -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD (Com)
- Identifier: vital:11368 , http://hdl.handle.net/10353/d1015374 , HIV infections -- Social aspects -- South Africa , AIDS (Disease) -- Social aspects -- South Africa , Communication in public health -- South Africa
- Description: Human Immuno-Deficiency Virus and Acquired Immune-Deficiency Syndrome communication remains one of the most significant tools in the fight against HIV/AIDS given the absence of the cure to fight the growth and spread of the global pandemic. Through the use of information, HIV/AIDS communication seeks to empower recipients or societies with skills that will help reduce their risk of infection. South Africa has seen a high visibility of HIV/AIDS communication programmes or campaigns aimed at empowering different audiences, whilst paying particular emphasis on the most vulnerable. Young people, in particular young women, have a higher prevalence of HIV/AIDS in South Africa. This has prompted the development of many youth focused communication campaigns which have sought to address factors that increase young people`s vulnerability to HIV infection. However, despite the high visibility of HIV/AIDS communication campaigns targeting young people, high risk behaviours are still being seen among young women. Important to note are the high teenage pregnancy rates, growing abuse of substances and even the premature engagement of sexual activities among female youths. This, therefore, raises questions on the effect of HIV/AIDS communication programmes in encouraging protective behaviour against risky behavioural practices amongst young women. Using both quantitative and qualitative research approaches to this study, an investigation was conducted into whether current HIV/AIDS communication campaigns have been limited (in terms of effectiveness) when it comes to communicating with young women on issues relating to HIV/AIDS. Awareness of HIV/AIDS and HIV/AIDS communication programmes, relevance of HIV/AIDS communication programmes, the factors that influence the use and understanding of HIV/AIDS messages and the impact of HIV/AIDS communication on attitude and behaviour change amongst female youths is measured. A total of 350 questionnaire copies were self-administered to 350 participants, with a 100 percent response rate. From the 350 participants, seventy five took part in focus group discussions. Data obtained was analysed using SPSS (for descriptive statistics), and the grounded theory. The results of the study indicate that all participants were aware of HIV/AIDS with at least 60% of the participants aware of at least three HIV/AIDS communication campaigns. When measuring the relevance of HIV/AIDS communication campaigns, participants (58%) indicate that issues discussed in most HIV/AIDS communication campaigns increased the relevance of HIV/AIDS messages to young women although such relevance was, for some respondents, affected by limited access to communication campaigns. Results also show that levels of knowledge and understanding of factors that expose young women to HIV infections differed amongst participants in as much as the factors that hinder the use of advice contained in HIV/AIDS messages also differed. Sixty-nine percent of the participants have knowledge and a better understanding of factors that expose young females to HIV infections. Twenty-five percent of the participants identified peer pressure, whilst 23% identified limited access to HIV/AIDS communication campaigns and another 18% identified a disregard of HIV/AIDS messages as significant factors that limit the ability of individuals to implement advice contained in HIV/AIDS messages. The results also indicate that although HIV/AIDS communication campaigns seem to have played a role in empowering some participants, there is still a significant minority whom communication has not effectively communicated with. Based on these findings, the study suggests, amongst other things, the need to intensify current HIV/AIDS communication campaigns through the provision of consistent messages on appropriate condom use, the identification of easily accessible communication channels and the development of thought provoking and attention grabbing campaigns as well as the need to continue to directly involve young women in the processes of their own development.
- Full Text:
- Authors: Mpofu, Nkosinothando
- Date: 2012
- Subjects: HIV infections -- Social aspects -- South Africa , AIDS (Disease) -- Social aspects -- South Africa , Communication in public health -- South Africa
- Language: English
- Type: Thesis , Doctoral , PhD (Com)
- Identifier: vital:11368 , http://hdl.handle.net/10353/d1015374 , HIV infections -- Social aspects -- South Africa , AIDS (Disease) -- Social aspects -- South Africa , Communication in public health -- South Africa
- Description: Human Immuno-Deficiency Virus and Acquired Immune-Deficiency Syndrome communication remains one of the most significant tools in the fight against HIV/AIDS given the absence of the cure to fight the growth and spread of the global pandemic. Through the use of information, HIV/AIDS communication seeks to empower recipients or societies with skills that will help reduce their risk of infection. South Africa has seen a high visibility of HIV/AIDS communication programmes or campaigns aimed at empowering different audiences, whilst paying particular emphasis on the most vulnerable. Young people, in particular young women, have a higher prevalence of HIV/AIDS in South Africa. This has prompted the development of many youth focused communication campaigns which have sought to address factors that increase young people`s vulnerability to HIV infection. However, despite the high visibility of HIV/AIDS communication campaigns targeting young people, high risk behaviours are still being seen among young women. Important to note are the high teenage pregnancy rates, growing abuse of substances and even the premature engagement of sexual activities among female youths. This, therefore, raises questions on the effect of HIV/AIDS communication programmes in encouraging protective behaviour against risky behavioural practices amongst young women. Using both quantitative and qualitative research approaches to this study, an investigation was conducted into whether current HIV/AIDS communication campaigns have been limited (in terms of effectiveness) when it comes to communicating with young women on issues relating to HIV/AIDS. Awareness of HIV/AIDS and HIV/AIDS communication programmes, relevance of HIV/AIDS communication programmes, the factors that influence the use and understanding of HIV/AIDS messages and the impact of HIV/AIDS communication on attitude and behaviour change amongst female youths is measured. A total of 350 questionnaire copies were self-administered to 350 participants, with a 100 percent response rate. From the 350 participants, seventy five took part in focus group discussions. Data obtained was analysed using SPSS (for descriptive statistics), and the grounded theory. The results of the study indicate that all participants were aware of HIV/AIDS with at least 60% of the participants aware of at least three HIV/AIDS communication campaigns. When measuring the relevance of HIV/AIDS communication campaigns, participants (58%) indicate that issues discussed in most HIV/AIDS communication campaigns increased the relevance of HIV/AIDS messages to young women although such relevance was, for some respondents, affected by limited access to communication campaigns. Results also show that levels of knowledge and understanding of factors that expose young women to HIV infections differed amongst participants in as much as the factors that hinder the use of advice contained in HIV/AIDS messages also differed. Sixty-nine percent of the participants have knowledge and a better understanding of factors that expose young females to HIV infections. Twenty-five percent of the participants identified peer pressure, whilst 23% identified limited access to HIV/AIDS communication campaigns and another 18% identified a disregard of HIV/AIDS messages as significant factors that limit the ability of individuals to implement advice contained in HIV/AIDS messages. The results also indicate that although HIV/AIDS communication campaigns seem to have played a role in empowering some participants, there is still a significant minority whom communication has not effectively communicated with. Based on these findings, the study suggests, amongst other things, the need to intensify current HIV/AIDS communication campaigns through the provision of consistent messages on appropriate condom use, the identification of easily accessible communication channels and the development of thought provoking and attention grabbing campaigns as well as the need to continue to directly involve young women in the processes of their own development.
- Full Text:
Impact of animal traction power on agricultural productivity: case of lowlands of Mohale's Hoek district of Lesotho
- Rampokanyo, Lepolesa Michael
- Authors: Rampokanyo, Lepolesa Michael
- Date: 2012
- Subjects: Animal traction -- Lesotho , Agricultural productivity -- Lesotho , Draft animals -- Lesotho , Food security -- Lesotho , Farm produce -- Lesotho
- Language: English
- Type: Thesis , Masters , MSc Agric (Agricultural Economics)
- Identifier: vital:11178 , http://hdl.handle.net/10353/483 , Animal traction -- Lesotho , Agricultural productivity -- Lesotho , Draft animals -- Lesotho , Food security -- Lesotho , Farm produce -- Lesotho
- Description: Most farming at subsistence level is located in rural areas where the majority of smallholder farmers have low productivity which results in high rate of food insecurity. The areas are characterised by animal traction and poor farming practises, and monoculture is mostly preferred. In light of this, this study analyzed the impact of animal power on agricultural productivity. Smallholder farmers in the lowlands of Mohale’s Hoek district of Lesotho were investigated by means of a case study methodology. The aim of the study was to inform agricultural policy about the level and key determinants of inefficiency in the smallholder farming system so as to contribute to policy designed to raise productivity of smallholder farmers. The sampling frame comprised farmers and extension workers in the lowlands of Mohale’s Hoek district. From this frame, 118 farmers and 4 extension workers were randomly selected from four villages, namely‘Mapotsane, Potsane, Tsoloane and Siloe. The four groups of farmers include; the farmers owning and using cattle for ploughing, farmers owning tractor and cattle and using them for ploughing, farmers owning tractor only and using it for ploughing, and farmers who owned neither cattle nor tractor and normally hire these when ploughing operations are to be done on the farm. The interviews of these farmers and extension workers were conducted by means of semi-structured questionnaire which consisted of both open and close ended questions. The study used the stochastic frontier production model for the production efficiencies and linear regression model for the impact of animal traction on agricultural productivity. Both procedures provided insights into the relative contributions of animal power and traditional systems to poverty alleviation and food security in the project areas. Descriptive statistics were employed for farming systems and challenges facing small scale farmers. Gross Margins analysis was conducted for the animal power and tractor power yield levels for maize crop to compare the two types of power. Some diagnostic tests to detect serial correlation and heteroskedasticity and t-tests were also performed. The significant variables include the area of sorghum ploughed, members of the household that assist with family labour, education, quantity of fertilizer applied, time taken by the farmers in farming, members who are formally employed, household size, area of land ploughed, old age, costs of tractor and animal, marital status, income, area of maize ploughed, area of sorghum ploughed, quantity of fertilizers applied, costs of seeds and fertilizers applied, maize and sorghum yield and amount sold and consumed. The study revealed that monoculture is mainly practised and many smallholder farmers used traditional technologies that fail to replace nutrients in the soil. Nonetheless family labour was not a problem. During the farming season, tractors were used as the main source of power for ploughing. Most farmers hired these for maize production as it is a staple food crop even where animal power is available. It was noted that the tractors were few and in most cases old and malfunctioning. The cost of using animals in farming obviouslyplayed a role in the production of both maize v and sorghum in the lowland areas of Mohale’s Hoek district. Smallholder farmers who owned both tractors and animals produced more but they were mainly affected by high costs of maintaining the aging tractors, generally purchased on the used-equipment market. The increased challenges resulted in lower productivity of the smallholder farmers, including: unhealthy animals, drought, marketing problems, late ploughing, poor soils, lack of extension services, low yields, low income, lack of information, lack of appropriate implements, lack of support services, nutrition inadequacy, inappropriate farming systems. The study recommended the adoption and promotion of low-cost mechanization in the lowlands of Mohale’s Hoek district so as to increase the production of the smallholder farmers. Increased productivity will in turn improve household food security.
- Full Text:
- Authors: Rampokanyo, Lepolesa Michael
- Date: 2012
- Subjects: Animal traction -- Lesotho , Agricultural productivity -- Lesotho , Draft animals -- Lesotho , Food security -- Lesotho , Farm produce -- Lesotho
- Language: English
- Type: Thesis , Masters , MSc Agric (Agricultural Economics)
- Identifier: vital:11178 , http://hdl.handle.net/10353/483 , Animal traction -- Lesotho , Agricultural productivity -- Lesotho , Draft animals -- Lesotho , Food security -- Lesotho , Farm produce -- Lesotho
- Description: Most farming at subsistence level is located in rural areas where the majority of smallholder farmers have low productivity which results in high rate of food insecurity. The areas are characterised by animal traction and poor farming practises, and monoculture is mostly preferred. In light of this, this study analyzed the impact of animal power on agricultural productivity. Smallholder farmers in the lowlands of Mohale’s Hoek district of Lesotho were investigated by means of a case study methodology. The aim of the study was to inform agricultural policy about the level and key determinants of inefficiency in the smallholder farming system so as to contribute to policy designed to raise productivity of smallholder farmers. The sampling frame comprised farmers and extension workers in the lowlands of Mohale’s Hoek district. From this frame, 118 farmers and 4 extension workers were randomly selected from four villages, namely‘Mapotsane, Potsane, Tsoloane and Siloe. The four groups of farmers include; the farmers owning and using cattle for ploughing, farmers owning tractor and cattle and using them for ploughing, farmers owning tractor only and using it for ploughing, and farmers who owned neither cattle nor tractor and normally hire these when ploughing operations are to be done on the farm. The interviews of these farmers and extension workers were conducted by means of semi-structured questionnaire which consisted of both open and close ended questions. The study used the stochastic frontier production model for the production efficiencies and linear regression model for the impact of animal traction on agricultural productivity. Both procedures provided insights into the relative contributions of animal power and traditional systems to poverty alleviation and food security in the project areas. Descriptive statistics were employed for farming systems and challenges facing small scale farmers. Gross Margins analysis was conducted for the animal power and tractor power yield levels for maize crop to compare the two types of power. Some diagnostic tests to detect serial correlation and heteroskedasticity and t-tests were also performed. The significant variables include the area of sorghum ploughed, members of the household that assist with family labour, education, quantity of fertilizer applied, time taken by the farmers in farming, members who are formally employed, household size, area of land ploughed, old age, costs of tractor and animal, marital status, income, area of maize ploughed, area of sorghum ploughed, quantity of fertilizers applied, costs of seeds and fertilizers applied, maize and sorghum yield and amount sold and consumed. The study revealed that monoculture is mainly practised and many smallholder farmers used traditional technologies that fail to replace nutrients in the soil. Nonetheless family labour was not a problem. During the farming season, tractors were used as the main source of power for ploughing. Most farmers hired these for maize production as it is a staple food crop even where animal power is available. It was noted that the tractors were few and in most cases old and malfunctioning. The cost of using animals in farming obviouslyplayed a role in the production of both maize v and sorghum in the lowland areas of Mohale’s Hoek district. Smallholder farmers who owned both tractors and animals produced more but they were mainly affected by high costs of maintaining the aging tractors, generally purchased on the used-equipment market. The increased challenges resulted in lower productivity of the smallholder farmers, including: unhealthy animals, drought, marketing problems, late ploughing, poor soils, lack of extension services, low yields, low income, lack of information, lack of appropriate implements, lack of support services, nutrition inadequacy, inappropriate farming systems. The study recommended the adoption and promotion of low-cost mechanization in the lowlands of Mohale’s Hoek district so as to increase the production of the smallholder farmers. Increased productivity will in turn improve household food security.
- Full Text:
Impact of information and communication technology (ICT) on trust and information sharing in South African automotive supply chains
- Authors: Goche, Chiedza
- Date: 2012
- Subjects: Business logistics -- South Africa , Automobile industry and trade -- South Africa , Interorganizational relations -- South Africa , Trust -- South Africa , Information technology -- South Africa , Prisoner's dilemma game
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: http://hdl.handle.net/10353/668 , vital:26486 , Business logistics -- South Africa , Automobile industry and trade -- South Africa , Interorganizational relations -- South Africa , Trust -- South Africa , Information technology -- South Africa , Prisoner's dilemma game
- Description: The Internet has made a considerable impact on how business is conducted. Empowered by technology consumers are using the Internet as a tool to communicate and transact online. E-commerce (electronic commerce) presents opportunities for business to gain a competitive advantage, however it also posses certain challenges. Small and Medium Hospitality Enterprises (SMHEs) sector within the tourism industry, is one of the sectors which stands to benefit from using the Internet for business. Researchers agree that the contribution made by the tourism sector in developing economies is substantial. However, SMHEs are noted for their failure to derive optimal benefits from using the Internet for business to improve their competitiveness. This study which seeks to develop a model for use by SMHEs as a guide when making the decision to adopt technology was necessitated by the importance of SMHE’s contribution in the economy of developing countries. This model is based on the examination of existing theories and models such as; the Delone and McLean IS success model (2004), and the ITGI’s (2007) IT governance focus areas model. To elicit the desired outcomes, additional data was collected using questionnaires, interviews, and observations. The collected data was analysed and resulted in the development of a model that can be used by SMHEs in order to derive value from IT and to gain a competitive advantage.
- Full Text:
- Authors: Goche, Chiedza
- Date: 2012
- Subjects: Business logistics -- South Africa , Automobile industry and trade -- South Africa , Interorganizational relations -- South Africa , Trust -- South Africa , Information technology -- South Africa , Prisoner's dilemma game
- Language: English
- Type: Thesis , Masters , MCom (Information Systems)
- Identifier: http://hdl.handle.net/10353/668 , vital:26486 , Business logistics -- South Africa , Automobile industry and trade -- South Africa , Interorganizational relations -- South Africa , Trust -- South Africa , Information technology -- South Africa , Prisoner's dilemma game
- Description: The Internet has made a considerable impact on how business is conducted. Empowered by technology consumers are using the Internet as a tool to communicate and transact online. E-commerce (electronic commerce) presents opportunities for business to gain a competitive advantage, however it also posses certain challenges. Small and Medium Hospitality Enterprises (SMHEs) sector within the tourism industry, is one of the sectors which stands to benefit from using the Internet for business. Researchers agree that the contribution made by the tourism sector in developing economies is substantial. However, SMHEs are noted for their failure to derive optimal benefits from using the Internet for business to improve their competitiveness. This study which seeks to develop a model for use by SMHEs as a guide when making the decision to adopt technology was necessitated by the importance of SMHE’s contribution in the economy of developing countries. This model is based on the examination of existing theories and models such as; the Delone and McLean IS success model (2004), and the ITGI’s (2007) IT governance focus areas model. To elicit the desired outcomes, additional data was collected using questionnaires, interviews, and observations. The collected data was analysed and resulted in the development of a model that can be used by SMHEs in order to derive value from IT and to gain a competitive advantage.
- Full Text:
Implementation of the Zimbabwe National Orphan Care Policy: implications of partnership between government and civil society
- Authors: Chimange, Mizeck
- Date: 2012
- Subjects: Political participation -- Zimbabwe , Civil service -- Zimbabwe , Political leadership -- Zimbabwe , Public administration -- Zimbabwe -- Citizen participation , Orphanages -- Zimbabwe , Orphans -- Zimbabwe , Zimbabwe -- Politics and government , Zimbabwe -- Social conditions
- Language: English
- Type: Thesis , Masters , M Soc Sc (Dev)
- Identifier: vital:11435 , http://hdl.handle.net/10353/d1007188 , Political participation -- Zimbabwe , Civil service -- Zimbabwe , Political leadership -- Zimbabwe , Public administration -- Zimbabwe -- Citizen participation , Orphanages -- Zimbabwe , Orphans -- Zimbabwe , Zimbabwe -- Politics and government , Zimbabwe -- Social conditions
- Description: The study focused on the exploration of the implication of partnership between the government and civil society organizations in the implementation of the Zimbabwe National Orphan Care Policy (ZNOCP). The study was carried out in Masvingo District in Zimbabwe to explore on the feasibility of inter-organizational interaction in policy implementation and how it affects the service delivery system. The study incorporated government departments, civil society organizations and ward councillors who stood as the custodians of the people. The study was intended on unveiling the different contextual aspects that exist between government departments and civil-society organizations (CSOs) as individual and separate entities and how the compromising of their values would affect the partnership. Looking at the hierarchical and bureaucratic features of government institutions, the study also intended to understand how this could be concealed and compromised with CSOs‟ open agendas in public policy implementation to ensure effective service delivery to the people. The 5C protocol, critical variables in policy implementation which are policy content, context, capacity, commitment of those entrusted with the implementation process and also clients and coalitions were used as the yardsticks. These variables acted as a yardstick on which to analyze the partnership between the Zimbabwean government and the civil society in the implementation of the Z.N.O.C.P, their different attitudes, bureaucratic settings, organizational culture, values, norms, and how their readjustments or failure affect the service delivery system. It also became imperative to look at the government legislations that govern the CSO space of operation and financial aspects to understand the implications of partnership between government and civil society. An understanding of these aspects leads to an increased understanding of the feasibility of state-CSO partnerships and its implications on policy implementation.
- Full Text:
- Authors: Chimange, Mizeck
- Date: 2012
- Subjects: Political participation -- Zimbabwe , Civil service -- Zimbabwe , Political leadership -- Zimbabwe , Public administration -- Zimbabwe -- Citizen participation , Orphanages -- Zimbabwe , Orphans -- Zimbabwe , Zimbabwe -- Politics and government , Zimbabwe -- Social conditions
- Language: English
- Type: Thesis , Masters , M Soc Sc (Dev)
- Identifier: vital:11435 , http://hdl.handle.net/10353/d1007188 , Political participation -- Zimbabwe , Civil service -- Zimbabwe , Political leadership -- Zimbabwe , Public administration -- Zimbabwe -- Citizen participation , Orphanages -- Zimbabwe , Orphans -- Zimbabwe , Zimbabwe -- Politics and government , Zimbabwe -- Social conditions
- Description: The study focused on the exploration of the implication of partnership between the government and civil society organizations in the implementation of the Zimbabwe National Orphan Care Policy (ZNOCP). The study was carried out in Masvingo District in Zimbabwe to explore on the feasibility of inter-organizational interaction in policy implementation and how it affects the service delivery system. The study incorporated government departments, civil society organizations and ward councillors who stood as the custodians of the people. The study was intended on unveiling the different contextual aspects that exist between government departments and civil-society organizations (CSOs) as individual and separate entities and how the compromising of their values would affect the partnership. Looking at the hierarchical and bureaucratic features of government institutions, the study also intended to understand how this could be concealed and compromised with CSOs‟ open agendas in public policy implementation to ensure effective service delivery to the people. The 5C protocol, critical variables in policy implementation which are policy content, context, capacity, commitment of those entrusted with the implementation process and also clients and coalitions were used as the yardsticks. These variables acted as a yardstick on which to analyze the partnership between the Zimbabwean government and the civil society in the implementation of the Z.N.O.C.P, their different attitudes, bureaucratic settings, organizational culture, values, norms, and how their readjustments or failure affect the service delivery system. It also became imperative to look at the government legislations that govern the CSO space of operation and financial aspects to understand the implications of partnership between government and civil society. An understanding of these aspects leads to an increased understanding of the feasibility of state-CSO partnerships and its implications on policy implementation.
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Implications of food value chain support structures for water resource management by smallholder farmers in the Eastern Cape Province
- Authors: Arowolo, Steven Alaba
- Date: 2012
- Subjects: Agricultural assistance -- South Africa -- Eastern Cape , Agricultural productivity -- South Africa -- Eastern Cape , Agricultural extension work -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Farm produce -- South Africa -- Eastern Cape -- Marketing , Sustainable development -- South Africa -- Eastern Cape , Water resources development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Agricultural Economics)
- Identifier: vital:11181 , http://hdl.handle.net/10353/d1001027 , Agricultural assistance -- South Africa -- Eastern Cape , Agricultural productivity -- South Africa -- Eastern Cape , Agricultural extension work -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Farm produce -- South Africa -- Eastern Cape -- Marketing , Sustainable development -- South Africa -- Eastern Cape , Water resources development -- South Africa -- Eastern Cape
- Description: Smallholder agriculture is faced with so many challenges despite all the policies and programmes that have been channelled towards ensuring improvement in this sector. Improving smallholder agricultural productivity requires that smallholder farmers gain access to reliable and adequate farmer support services such as physical infrastructures like good road network, functional irrigation facilities, extension services, finance and efficient marketing system. However, these support services are lacking in a vast majority of the rural communities in which the smallholder farmers live and work. This study is centred on governance within the food value chains, with specific focus on butternuts and chicken value chains;with a view to identifying those factors preventing smallholder farmers from accessing the mainstream market. Ciko and Mbozi villages in Mbashe local municipality were used as the research sites for the study. Data were collected across the two villages through sampling of 100 individual farming households based on random selection; questionnaires and checklist of questions were used as tools to access information from farmers through focus group discussions, personal interviews and key informants. In addition,Ciko Santrini project and foundation community project, which are the two agricultural community projects located within the study area were also investigated. Conceptual and analytical frameworks were employed in the research analysis. Williamson’s 4-level of social analysis and the sustainable livelihood frameworks were used to conceptualize the analysis. Inferential analysis was carried out using binary logistic regression and discriminant analysis with focus on butternuts and cSmallholder agriculture is faced with so many challenges despite all the policies and programmes that have been channelled towards ensuring improvement in this sector. Improving smallholder agricultural productivity requires that smallholder farmers gain access to reliable and adequate farmer support services such as physical infrastructures like good road network, functional irrigation facilities, extension services, finance and efficient marketing system. However, these support services are lacking in a vast majority of the rural communities in which the smallholder farmers live and work. This study is centred on governance within the food value chains, with specific focus on butternuts and chicken value chains;with a view to identifying those factors preventing smallholder farmers from accessing the mainstream market. Ciko and Mbozi villages in Mbashe local municipality were used as the research sites for the study. Data were collected across the two villages through sampling of 100 individual farming households based on random selection; questionnaires and checklist of questions were used as tools to access information from farmers through focus group discussions, personal interviews and key informants. In addition,Ciko Santrini project and foundation community project, which are the two agricultural community projects located within the study area were also investigated. Conceptual and analytical frameworks were employed in the research analysis. Williamson’s 4-level of social analysis and the sustainable livelihood frameworks were used to conceptualize the analysis. Inferential analysis was carried out using binary logistic regression and discriminant analysis with focus on butternuts and chicken production among the smallholder farmers in the study area to determine factors that could encourage farmers ‘access markets. The results showed that factors such as; assistance from government agency, partnerships with private and public institutions and farmers’ decision due to access to information were significant at 1% level for both butternuts and chicken production. On the other hand, factors such as provision of input subsidy and farmers’ membership of agricultural development projects are significant at 5% level. The findings suggest that adoption of any or combination of the significant factors could serve as good support structures for farmers and they could directly help them market their produce efficiently.
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- Authors: Arowolo, Steven Alaba
- Date: 2012
- Subjects: Agricultural assistance -- South Africa -- Eastern Cape , Agricultural productivity -- South Africa -- Eastern Cape , Agricultural extension work -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Farm produce -- South Africa -- Eastern Cape -- Marketing , Sustainable development -- South Africa -- Eastern Cape , Water resources development -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Agricultural Economics)
- Identifier: vital:11181 , http://hdl.handle.net/10353/d1001027 , Agricultural assistance -- South Africa -- Eastern Cape , Agricultural productivity -- South Africa -- Eastern Cape , Agricultural extension work -- South Africa -- Eastern Cape , Agricultural development projects -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Farm produce -- South Africa -- Eastern Cape -- Marketing , Sustainable development -- South Africa -- Eastern Cape , Water resources development -- South Africa -- Eastern Cape
- Description: Smallholder agriculture is faced with so many challenges despite all the policies and programmes that have been channelled towards ensuring improvement in this sector. Improving smallholder agricultural productivity requires that smallholder farmers gain access to reliable and adequate farmer support services such as physical infrastructures like good road network, functional irrigation facilities, extension services, finance and efficient marketing system. However, these support services are lacking in a vast majority of the rural communities in which the smallholder farmers live and work. This study is centred on governance within the food value chains, with specific focus on butternuts and chicken value chains;with a view to identifying those factors preventing smallholder farmers from accessing the mainstream market. Ciko and Mbozi villages in Mbashe local municipality were used as the research sites for the study. Data were collected across the two villages through sampling of 100 individual farming households based on random selection; questionnaires and checklist of questions were used as tools to access information from farmers through focus group discussions, personal interviews and key informants. In addition,Ciko Santrini project and foundation community project, which are the two agricultural community projects located within the study area were also investigated. Conceptual and analytical frameworks were employed in the research analysis. Williamson’s 4-level of social analysis and the sustainable livelihood frameworks were used to conceptualize the analysis. Inferential analysis was carried out using binary logistic regression and discriminant analysis with focus on butternuts and cSmallholder agriculture is faced with so many challenges despite all the policies and programmes that have been channelled towards ensuring improvement in this sector. Improving smallholder agricultural productivity requires that smallholder farmers gain access to reliable and adequate farmer support services such as physical infrastructures like good road network, functional irrigation facilities, extension services, finance and efficient marketing system. However, these support services are lacking in a vast majority of the rural communities in which the smallholder farmers live and work. This study is centred on governance within the food value chains, with specific focus on butternuts and chicken value chains;with a view to identifying those factors preventing smallholder farmers from accessing the mainstream market. Ciko and Mbozi villages in Mbashe local municipality were used as the research sites for the study. Data were collected across the two villages through sampling of 100 individual farming households based on random selection; questionnaires and checklist of questions were used as tools to access information from farmers through focus group discussions, personal interviews and key informants. In addition,Ciko Santrini project and foundation community project, which are the two agricultural community projects located within the study area were also investigated. Conceptual and analytical frameworks were employed in the research analysis. Williamson’s 4-level of social analysis and the sustainable livelihood frameworks were used to conceptualize the analysis. Inferential analysis was carried out using binary logistic regression and discriminant analysis with focus on butternuts and chicken production among the smallholder farmers in the study area to determine factors that could encourage farmers ‘access markets. The results showed that factors such as; assistance from government agency, partnerships with private and public institutions and farmers’ decision due to access to information were significant at 1% level for both butternuts and chicken production. On the other hand, factors such as provision of input subsidy and farmers’ membership of agricultural development projects are significant at 5% level. The findings suggest that adoption of any or combination of the significant factors could serve as good support structures for farmers and they could directly help them market their produce efficiently.
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Inclusive education: a phenomenological study of the experiences of teachers in a mainstream primary school in East London
- Authors: Naidoo, Allan Quinton
- Date: 2012
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16179 , http://hdl.handle.net/10353/531
- Description: In 2001 the Department of Education formulated policy that makes provision for learners with mild to moderate barriers to learning to be taught in mainstream primary schools. This policy became known as White Paper 6: Special needs education. The premise of this policy is to eventually convert all mainstream primary schools into full service schools that will cater for the full range of educational needs. The policy however created a dilemma for mainstream primary schools as the majority of them never received any training in special needs education. Most teachers therefore do not have the required knowledge and skills to adapt the national curriculum (NCS) and assessment methods so that it will accommodate the learning needs of all learners. Teachers thus experience the policy regulations as complex. This is a phenomenological study located within the interpretive research paradigm. Qualitative research methods namely phenomenological interviews were employed to gather data that could expound on and give an in-depth understanding of the experiences of teachers who are confronted with a diversity of educational needs. The investigation took place at a mainstream primary school that has a substantial history of catering to the educational needs of learners who experience problems with their learning and addressing physical disabilities such as hearing problems, autism and ADHD. The fact that the study focused only on one school served as a major limitation. The findings of the study can therefore not be generalized to other educational settings. WP6 is however national policy therefore the findings of the study could be valuable for gaining understanding of the intricacies of inclusive education. The data revealed that teachers are finding it difficult to implement inclusive education. This complexity is caused by a myriad of factors which impact negatively on the experiences of teachers such as high learner numbers, diversity of learning abilities and styles, a heavy workload, behavioural problems, language problems, challenges related to the curriculum and assessment and inefficient support services. However, despite lacking the prerequisite knowledge and skills for effective inclusive education, teachers tried their utmost to reach all the learners.
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- Authors: Naidoo, Allan Quinton
- Date: 2012
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16179 , http://hdl.handle.net/10353/531
- Description: In 2001 the Department of Education formulated policy that makes provision for learners with mild to moderate barriers to learning to be taught in mainstream primary schools. This policy became known as White Paper 6: Special needs education. The premise of this policy is to eventually convert all mainstream primary schools into full service schools that will cater for the full range of educational needs. The policy however created a dilemma for mainstream primary schools as the majority of them never received any training in special needs education. Most teachers therefore do not have the required knowledge and skills to adapt the national curriculum (NCS) and assessment methods so that it will accommodate the learning needs of all learners. Teachers thus experience the policy regulations as complex. This is a phenomenological study located within the interpretive research paradigm. Qualitative research methods namely phenomenological interviews were employed to gather data that could expound on and give an in-depth understanding of the experiences of teachers who are confronted with a diversity of educational needs. The investigation took place at a mainstream primary school that has a substantial history of catering to the educational needs of learners who experience problems with their learning and addressing physical disabilities such as hearing problems, autism and ADHD. The fact that the study focused only on one school served as a major limitation. The findings of the study can therefore not be generalized to other educational settings. WP6 is however national policy therefore the findings of the study could be valuable for gaining understanding of the intricacies of inclusive education. The data revealed that teachers are finding it difficult to implement inclusive education. This complexity is caused by a myriad of factors which impact negatively on the experiences of teachers such as high learner numbers, diversity of learning abilities and styles, a heavy workload, behavioural problems, language problems, challenges related to the curriculum and assessment and inefficient support services. However, despite lacking the prerequisite knowledge and skills for effective inclusive education, teachers tried their utmost to reach all the learners.
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Inflation targeting and inflation indicators: the case for inflation targeting in South Africa
- Authors: Jeke, Leward
- Date: 2012
- Subjects: South African Reserve Bank , Inflation (Finance) -- South Africa , Inflation targeting -- South Africa , Anti-inflationary policies -- South Africa , Economic indicators -- South Africa , Economic stabilization -- South Africa , Cointegration -- South Africa
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11467 , http://hdl.handle.net/10353/d1007091 , South African Reserve Bank , Inflation (Finance) -- South Africa , Inflation targeting -- South Africa , Anti-inflationary policies -- South Africa , Economic indicators -- South Africa , Economic stabilization -- South Africa , Cointegration -- South Africa
- Description: The control of inflation requires a forecast of the future path of the price level and its indicators. Targeting inflation directly requires that the central bank (SARB) form forecasts of the likely path of prices paying close attention to a variety of indicators that shows the predictive power of inflation in the past periods. Inflation indicators might be cointegrated with the rate of inflation to predict the future inflation rates. Forecasting inflation may be very difficult at a particular period due to the fact that the array candidate indicators of inflation may neither be very stable nor very strong in their relationships with the rate of inflation. Although this might be the case, this research uses testable effects of each of the South African inflation indicators to the rate of inflation using econometrics tools to find that they have a long run trend with the rate of inflation in South Africa. It has been found that each of the indicator variables has a long run relationship with the rate of inflation. The major conclusion is that inflation indicator variables like money supply (M3), oil price, gold price, total employment, interest rates, exchange rates and output growth can be useful inflation indicators in targeting the future trends of inflation in South Africa according to the data used in this research although some studies in some countries find that inflation targeting is an insufficient framework for monetary policy in the presence of financial exuberance. The money supply, the oil prices, interest rates, the exchange rates, prices of gold, the employment and output growth are co-integrated with the rate of inflation representing a long-run relationship.
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- Authors: Jeke, Leward
- Date: 2012
- Subjects: South African Reserve Bank , Inflation (Finance) -- South Africa , Inflation targeting -- South Africa , Anti-inflationary policies -- South Africa , Economic indicators -- South Africa , Economic stabilization -- South Africa , Cointegration -- South Africa
- Language: English
- Type: Thesis , Masters , M Com
- Identifier: vital:11467 , http://hdl.handle.net/10353/d1007091 , South African Reserve Bank , Inflation (Finance) -- South Africa , Inflation targeting -- South Africa , Anti-inflationary policies -- South Africa , Economic indicators -- South Africa , Economic stabilization -- South Africa , Cointegration -- South Africa
- Description: The control of inflation requires a forecast of the future path of the price level and its indicators. Targeting inflation directly requires that the central bank (SARB) form forecasts of the likely path of prices paying close attention to a variety of indicators that shows the predictive power of inflation in the past periods. Inflation indicators might be cointegrated with the rate of inflation to predict the future inflation rates. Forecasting inflation may be very difficult at a particular period due to the fact that the array candidate indicators of inflation may neither be very stable nor very strong in their relationships with the rate of inflation. Although this might be the case, this research uses testable effects of each of the South African inflation indicators to the rate of inflation using econometrics tools to find that they have a long run trend with the rate of inflation in South Africa. It has been found that each of the indicator variables has a long run relationship with the rate of inflation. The major conclusion is that inflation indicator variables like money supply (M3), oil price, gold price, total employment, interest rates, exchange rates and output growth can be useful inflation indicators in targeting the future trends of inflation in South Africa according to the data used in this research although some studies in some countries find that inflation targeting is an insufficient framework for monetary policy in the presence of financial exuberance. The money supply, the oil prices, interest rates, the exchange rates, prices of gold, the employment and output growth are co-integrated with the rate of inflation representing a long-run relationship.
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Inhibitory potential of honey on the enzymatic activity of Helicobacter pylori urease
- Authors: Matongo, Fredrick
- Date: 2012
- Subjects: Honey , Helicobacter pylori infections , Enzyme inhibitors , Traditional medicine , Antifungal agents
- Language: English
- Type: Thesis , Masters , MSc (Biochemistry)
- Identifier: vital:11253 , http://hdl.handle.net/10353/431 , Honey , Helicobacter pylori infections , Enzyme inhibitors , Traditional medicine , Antifungal agents
- Description: Urease of Helicobacter pylori is an important virulence factor implicated in the pathogenesis of many clinical conditions, such as chronic gastritis, peptic ulceration, and gastric cancer. Many urease inhibitors have been discovered, like phosphorodiamidates, hydroxamic acid derivatives, and imidazoles. Despite good activities at the enzyme level and excellent kinetic properties most of them have not been used as therapeutic agents in vivo because of their side effects, toxicity and instability. This has led to much attention to focus on exploring the novel urease inhibitory activities of natural products because of their low toxicity and good bioavailability. Honey, a natural product has been used in folk medicine due to its antitumor, antioxidant, antimicrobial and anti-inflammatory properties. The aims of this study were to isolate, characterise, purify urease produced by H. pylori and investigate the inhibitory effects of solvent honey extracts on its enzymatic activity. Urease was found to be both surface-associated and cytoplasmic. Maximum cytoplasmic urease activity was found to occur after 72 hr whereas maximum extracellular urease activities were found to occur after 96 hr. Characterization of the crude cytoplasmic urease revealed optimal activity at a pH of 7.5 and temperature of 40°C. The kinetic parameters Vmax and Km were 45.32 U ml-1 and 61.11 mM respectively.The honey extracts inhibited the activity of the crude urease in a concentration dependent manner. The Lineweaver-Burk plots indicated a non-competitive type of inhibition against H. pylori urease. The two honey extracts gave promising inhibitory activities against urease of H. pylori. Thus the results of this study delineates that inhibition of urease can ease development in therapeutic and preventative approaches based on the enzymatic activity of this Helicobacter protein.
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- Authors: Matongo, Fredrick
- Date: 2012
- Subjects: Honey , Helicobacter pylori infections , Enzyme inhibitors , Traditional medicine , Antifungal agents
- Language: English
- Type: Thesis , Masters , MSc (Biochemistry)
- Identifier: vital:11253 , http://hdl.handle.net/10353/431 , Honey , Helicobacter pylori infections , Enzyme inhibitors , Traditional medicine , Antifungal agents
- Description: Urease of Helicobacter pylori is an important virulence factor implicated in the pathogenesis of many clinical conditions, such as chronic gastritis, peptic ulceration, and gastric cancer. Many urease inhibitors have been discovered, like phosphorodiamidates, hydroxamic acid derivatives, and imidazoles. Despite good activities at the enzyme level and excellent kinetic properties most of them have not been used as therapeutic agents in vivo because of their side effects, toxicity and instability. This has led to much attention to focus on exploring the novel urease inhibitory activities of natural products because of their low toxicity and good bioavailability. Honey, a natural product has been used in folk medicine due to its antitumor, antioxidant, antimicrobial and anti-inflammatory properties. The aims of this study were to isolate, characterise, purify urease produced by H. pylori and investigate the inhibitory effects of solvent honey extracts on its enzymatic activity. Urease was found to be both surface-associated and cytoplasmic. Maximum cytoplasmic urease activity was found to occur after 72 hr whereas maximum extracellular urease activities were found to occur after 96 hr. Characterization of the crude cytoplasmic urease revealed optimal activity at a pH of 7.5 and temperature of 40°C. The kinetic parameters Vmax and Km were 45.32 U ml-1 and 61.11 mM respectively.The honey extracts inhibited the activity of the crude urease in a concentration dependent manner. The Lineweaver-Burk plots indicated a non-competitive type of inhibition against H. pylori urease. The two honey extracts gave promising inhibitory activities against urease of H. pylori. Thus the results of this study delineates that inhibition of urease can ease development in therapeutic and preventative approaches based on the enzymatic activity of this Helicobacter protein.
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Interaction of terpenes and oxygenated terpenes with some drugs
- Authors: Ajayi, Emmanuel Olusegun
- Date: 2012
- Subjects: Terpenes -- Essences and essential oils , Lavenders -- Monoterpenes -- Drug interactions , Drugs -- Camphor -- Medicinal plants
- Language: English
- Type: Thesis , Masters , MSc (Chemistry)
- Identifier: vital:11332 , http://hdl.handle.net/10353/418 , Terpenes -- Essences and essential oils , Lavenders -- Monoterpenes -- Drug interactions , Drugs -- Camphor -- Medicinal plants
- Description: SFME and HD for the extraction of essential oil in Lavandula officinalis in Alice have been reported. A total of 59 compounds were identified with the major compound being 1,8-cineole, an oxygenated monoterpene, with 46.89% and 44.84% yield obtained for HD and SFME respectively. Charge transfer (CT) complexes formed between α-pinene, 1,8-cineole and camphor as electron donors with iodine as the electron acceptor have been studied spectrophotometrically in methylene chloride solution. The Benesi- Hildebrand equation has been applied to estimate the formation constant (Kf) and molecular extinction coefficient (εCT). The value of Kf is the highest in camphor-I2 complex compared to the other two complexes. Antibacterial assessment was carried out on the various reagents, determining the MIC of individual reagents and in combination. The results show an improvement, on combination of the various reagents than when tested alone.
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- Authors: Ajayi, Emmanuel Olusegun
- Date: 2012
- Subjects: Terpenes -- Essences and essential oils , Lavenders -- Monoterpenes -- Drug interactions , Drugs -- Camphor -- Medicinal plants
- Language: English
- Type: Thesis , Masters , MSc (Chemistry)
- Identifier: vital:11332 , http://hdl.handle.net/10353/418 , Terpenes -- Essences and essential oils , Lavenders -- Monoterpenes -- Drug interactions , Drugs -- Camphor -- Medicinal plants
- Description: SFME and HD for the extraction of essential oil in Lavandula officinalis in Alice have been reported. A total of 59 compounds were identified with the major compound being 1,8-cineole, an oxygenated monoterpene, with 46.89% and 44.84% yield obtained for HD and SFME respectively. Charge transfer (CT) complexes formed between α-pinene, 1,8-cineole and camphor as electron donors with iodine as the electron acceptor have been studied spectrophotometrically in methylene chloride solution. The Benesi- Hildebrand equation has been applied to estimate the formation constant (Kf) and molecular extinction coefficient (εCT). The value of Kf is the highest in camphor-I2 complex compared to the other two complexes. Antibacterial assessment was carried out on the various reagents, determining the MIC of individual reagents and in combination. The results show an improvement, on combination of the various reagents than when tested alone.
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Investigation into the implementation of the childrens act no 38 of 2005 in mainstream schools in the Fort Beaufort education district
- Authors: Mankazana, Sobantu Vincent
- Date: 2012
- Subjects: South Africa -- Childrens Act 2005 , Children -- Law and legislation -- South Africa , Children -- Legal status laws etc -- South Africa -- Eastern Cape , Mainstreaming in education -- South Africa -- Eastern Cape , Children -- Human rights
- Language: English
- Type: Thesis , Masters , MA (Human Rights)
- Identifier: vital:11102 , http://hdl.handle.net/10353/502 , South Africa -- Childrens Act 2005 , Children -- Law and legislation -- South Africa , Children -- Legal status laws etc -- South Africa -- Eastern Cape , Mainstreaming in education -- South Africa -- Eastern Cape , Children -- Human rights
- Description: In this study the focus is on the implementation of the Children’s Act in mainstream schools. The Children’s Act mandates that all children who are in need of care both in school and out of school should be taken care of and be protected. However, they are often not afforded the full opportunity to enjoy the benefits of this Act. This is due to various factors that hinder the process of its implementation in mainstream schools. The main emphasis of this study is on the factors that hinder the implementation of the Children’s Act. The aim of the Children’s Act is to look after and provide services and support to children in need of care and protection. In order to provide such services and support to children, one needs to first identify such learners in need of care and their needs. Having done this, the support needed can be assessed and provided. This process is not easily achieved in mainstream schools. This study seeks to determine the factors that discourage the implementation process of the Children’s Act in mainstream schools. Data collection for this study included face to face interviews with teachers who are principals of schools and Life Orientation teachers, a social workers and school nurse. The data was used to analyze and interpret the challenges that hinder the implementation of the Children’s Act in mainstream schools. Among others, the study found that there is a lack of collaboration among stakeholders and coordination of service delivery. Poor parental involvement and commitment to parent involvement programmes was also evident. However, to a limited degree, there is interaction between the schools and relevant government departments. The study recommends that multidisciplinary teams should be formed whereby scarce resources can be shared. Various professionals should have the opportunity to come together toshare ideas and information. In order to encourage identification of learners in need of care, it is recommended that, the peer groups or peer educators be established and awareness campaign be conducted in schools. The study also recommends that developmental assessment programmes be conducted. Developmental assessment programmes will help gather information directly from learners or from an appropriate adult in the child’s life. They provide frameworks which can be used as guides for eliciting and analysing information.
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- Authors: Mankazana, Sobantu Vincent
- Date: 2012
- Subjects: South Africa -- Childrens Act 2005 , Children -- Law and legislation -- South Africa , Children -- Legal status laws etc -- South Africa -- Eastern Cape , Mainstreaming in education -- South Africa -- Eastern Cape , Children -- Human rights
- Language: English
- Type: Thesis , Masters , MA (Human Rights)
- Identifier: vital:11102 , http://hdl.handle.net/10353/502 , South Africa -- Childrens Act 2005 , Children -- Law and legislation -- South Africa , Children -- Legal status laws etc -- South Africa -- Eastern Cape , Mainstreaming in education -- South Africa -- Eastern Cape , Children -- Human rights
- Description: In this study the focus is on the implementation of the Children’s Act in mainstream schools. The Children’s Act mandates that all children who are in need of care both in school and out of school should be taken care of and be protected. However, they are often not afforded the full opportunity to enjoy the benefits of this Act. This is due to various factors that hinder the process of its implementation in mainstream schools. The main emphasis of this study is on the factors that hinder the implementation of the Children’s Act. The aim of the Children’s Act is to look after and provide services and support to children in need of care and protection. In order to provide such services and support to children, one needs to first identify such learners in need of care and their needs. Having done this, the support needed can be assessed and provided. This process is not easily achieved in mainstream schools. This study seeks to determine the factors that discourage the implementation process of the Children’s Act in mainstream schools. Data collection for this study included face to face interviews with teachers who are principals of schools and Life Orientation teachers, a social workers and school nurse. The data was used to analyze and interpret the challenges that hinder the implementation of the Children’s Act in mainstream schools. Among others, the study found that there is a lack of collaboration among stakeholders and coordination of service delivery. Poor parental involvement and commitment to parent involvement programmes was also evident. However, to a limited degree, there is interaction between the schools and relevant government departments. The study recommends that multidisciplinary teams should be formed whereby scarce resources can be shared. Various professionals should have the opportunity to come together toshare ideas and information. In order to encourage identification of learners in need of care, it is recommended that, the peer groups or peer educators be established and awareness campaign be conducted in schools. The study also recommends that developmental assessment programmes be conducted. Developmental assessment programmes will help gather information directly from learners or from an appropriate adult in the child’s life. They provide frameworks which can be used as guides for eliciting and analysing information.
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Knowledge retention strategies in selected Southern Africa public broadcasting corporations
- Authors: Dewah, Peterson
- Date: 2012
- Subjects: Knowledge management , Intellectual capital -- Management , Employee retention , Broadcasting -- South Africa , Broadcasting -- Zimbabwe , Broadcasting -- Botswana
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:11572 , http://hdl.handle.net/10353/438 , Knowledge management , Intellectual capital -- Management , Employee retention , Broadcasting -- South Africa , Broadcasting -- Zimbabwe , Broadcasting -- Botswana
- Description: Knowledge is now regarded as the most important resource surpassing other resources like land and capital. It is a foregone conclusion that knowledge flows out of organizations through various ways such as resignations, retirement and death yet, it does not seem as if organizations are employing strategies to retain such a vital component of production and service delivery. This study investigated the knowledge retention strategies in three Southern Africa Development Community (SADC) public broadcasting organizations of the South African Broadcasting Corporation in South African (SABC), the Department of Broadcasting Services (DBS) in Botswana and the Zimbabwe Broadcasting Corporation (ZBC) in Zimbabwe. The aim of this study was to establish how knowledge is captured and retained at such organizations. The objectives of the study were; to find out the types of strategies the three broadcasting organizations employ to capture and retain knowledge; establish how the three broadcasting organizational cultures enable knowledge acquisition, transfer, sharing and retention; establish the role of ICTs as tools and enablers of knowledge retention, creation, transfer and sharing in the three broadcasting organizations; and to propose recommendations on the best strategies for retention of knowledge in the three public broadcasting organizations as well as suggest areas for further and future research. v The study used the survey method and employed the triangulation design for data gathering. Data were collected from three SADC public broadcasting organizations. The population sample comprised 240 professional staff including 38 managers from different sections of the broadcasting organizations. The researcher collected data by administering a questionnaire to staff, interviews with managers and observations. Documentary analysis was also conducted in order to supplement data and fill in gaps. The researcher was mainly interested in gathering data that would give a comprehensive picture about knowledge retention methods in broadcasting organizations. There were four main findings. First, knowledge management as a relatively new concept and practice has not yet been properly embraced in the public broadcasting organization system in order to capture and retain knowledge that is acquired and generated in the organizations. There are no measures put in place in the organizations to retain the knowledge to ensure that once those who hold vital tacit knowledge are gone, the knowledge may still be available and accessible. Second, the study established that the respective organizational cultures impede on organizational knowledge retention. The study established that there was no culture of knowledge sharing. It also emerged that employees were not free to share their knowledge because of government regulations, prevailing political contexts, mistrust and general lack of incentive to share knowledge. Third, the study established that the organizations have no strategies or systems in place to capture the experts‟ knowledge or the knowledge of experienced staff and vi those approaching retiring age. The Human Resources Departments hold exit interviews that cover issues purely to do with why the person is leaving the organization instead of recording the work experiences and expertise of the departing employees. Fourth, the study revealed that the public broadcasting organizations still lag behind in collaborative and communicative technologies that facilitate knowledge transfer and sharing of tacit knowledge but retention of knowledge generally. The study also found that, some of the organizations studied did not have internet connectivity and websites were not yet functional, which hampered acquisition and sharing of knowledge for retention purposes. The importance of this study is that it has made a contribution and provided literature on knowledge retention strategies for public broadcasting corporations as part of knowledge management practice. On the basis of these findings the study recommended the following: appointment of knowledge management officers, establishment of Communities of Practice, encouraging knowledge sharing between employees, introduction of joint programmes with other broadcasting organizations by managers and their supervision of mentoring programmes; organizations to facilitate acquisition of information and communication technologies that enable knowledge management
- Full Text:
- Authors: Dewah, Peterson
- Date: 2012
- Subjects: Knowledge management , Intellectual capital -- Management , Employee retention , Broadcasting -- South Africa , Broadcasting -- Zimbabwe , Broadcasting -- Botswana
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:11572 , http://hdl.handle.net/10353/438 , Knowledge management , Intellectual capital -- Management , Employee retention , Broadcasting -- South Africa , Broadcasting -- Zimbabwe , Broadcasting -- Botswana
- Description: Knowledge is now regarded as the most important resource surpassing other resources like land and capital. It is a foregone conclusion that knowledge flows out of organizations through various ways such as resignations, retirement and death yet, it does not seem as if organizations are employing strategies to retain such a vital component of production and service delivery. This study investigated the knowledge retention strategies in three Southern Africa Development Community (SADC) public broadcasting organizations of the South African Broadcasting Corporation in South African (SABC), the Department of Broadcasting Services (DBS) in Botswana and the Zimbabwe Broadcasting Corporation (ZBC) in Zimbabwe. The aim of this study was to establish how knowledge is captured and retained at such organizations. The objectives of the study were; to find out the types of strategies the three broadcasting organizations employ to capture and retain knowledge; establish how the three broadcasting organizational cultures enable knowledge acquisition, transfer, sharing and retention; establish the role of ICTs as tools and enablers of knowledge retention, creation, transfer and sharing in the three broadcasting organizations; and to propose recommendations on the best strategies for retention of knowledge in the three public broadcasting organizations as well as suggest areas for further and future research. v The study used the survey method and employed the triangulation design for data gathering. Data were collected from three SADC public broadcasting organizations. The population sample comprised 240 professional staff including 38 managers from different sections of the broadcasting organizations. The researcher collected data by administering a questionnaire to staff, interviews with managers and observations. Documentary analysis was also conducted in order to supplement data and fill in gaps. The researcher was mainly interested in gathering data that would give a comprehensive picture about knowledge retention methods in broadcasting organizations. There were four main findings. First, knowledge management as a relatively new concept and practice has not yet been properly embraced in the public broadcasting organization system in order to capture and retain knowledge that is acquired and generated in the organizations. There are no measures put in place in the organizations to retain the knowledge to ensure that once those who hold vital tacit knowledge are gone, the knowledge may still be available and accessible. Second, the study established that the respective organizational cultures impede on organizational knowledge retention. The study established that there was no culture of knowledge sharing. It also emerged that employees were not free to share their knowledge because of government regulations, prevailing political contexts, mistrust and general lack of incentive to share knowledge. Third, the study established that the organizations have no strategies or systems in place to capture the experts‟ knowledge or the knowledge of experienced staff and vi those approaching retiring age. The Human Resources Departments hold exit interviews that cover issues purely to do with why the person is leaving the organization instead of recording the work experiences and expertise of the departing employees. Fourth, the study revealed that the public broadcasting organizations still lag behind in collaborative and communicative technologies that facilitate knowledge transfer and sharing of tacit knowledge but retention of knowledge generally. The study also found that, some of the organizations studied did not have internet connectivity and websites were not yet functional, which hampered acquisition and sharing of knowledge for retention purposes. The importance of this study is that it has made a contribution and provided literature on knowledge retention strategies for public broadcasting corporations as part of knowledge management practice. On the basis of these findings the study recommended the following: appointment of knowledge management officers, establishment of Communities of Practice, encouraging knowledge sharing between employees, introduction of joint programmes with other broadcasting organizations by managers and their supervision of mentoring programmes; organizations to facilitate acquisition of information and communication technologies that enable knowledge management
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