Evaluating long term effects of fire frequency on soil seed bank composition and species diversity in a semi-arid , South African savanna
- Mabuza, Thembisile Veronicah
- Authors: Mabuza, Thembisile Veronicah
- Date: 2011
- Subjects: Pastures -- South Africa -- Eastern Cape , Fire management -- South Africa -- Eastern Cape , Forage plants -- Evaluation , Ruminants -- Feeding and feeds , Ruminants -- Nutrition , Soil seed banks
- Language: English
- Type: Thesis , Masters , MSc Agric (Pasture Science)
- Identifier: vital:11579 , http://hdl.handle.net/10353/346 , Pastures -- South Africa -- Eastern Cape , Fire management -- South Africa -- Eastern Cape , Forage plants -- Evaluation , Ruminants -- Feeding and feeds , Ruminants -- Nutrition , Soil seed banks
- Description: Fire is generally used as a management tool for different vegetation types such as savannas and grasslands in southern Africa. In the False Thornveld of the Eastern Cape, fire is commonly used to control bush encroachment and to increase grass production, as grasses are important source of forage for domestic livestock. At the University of Fort Hare farm in the Eastern Cape, a trial was set up in 1980 to investigate the effect of burning frequency on vegetation. There are six treatments replicated twice in a completely randomized design on a 100 m x 50 m plots. The treatments comprise no burn, annual, biennial, triennial, quadrennial and sexennial burns. From this trial a study was conducted to investigate long term effect of burning frequency on species and soil seed bank diversity. Two 100 m line transects located 25 m apart were laid within each plot, and the herbaceous and woody species were identified and recorded along the line transects. Relative abundances (%) for each species were calculated for each treatment. Soil samples were collected at an interval of 13.3 m along the line transects. The samples were placed in paper bags and kept for use in a germination experiment. The seedling emergence germination method was used in the glasshouse to determine emerging seedlings, pots were filled with Hygromix growth medium and the soils from the fire trials 12 X 6 = 72 were spread on top. Soil from the control plots were also pre-treated with heat, smoke and the combination of heat and smoke. The experiment started in January 2010 and was terminated in April 2010. The Shannon-Weaver Diversity Index was used to determine species diversity for standing vegetation and germinated seedlings. Data were tested for normality and species abundances were transformed. Analysis of Variance (ANOVA) was applied to test treatment effects on geminated seedlings, species abundance and diversity at α = 0.05 significance level. Significant differences between treatment means were determined by post v hoc tests using Fischer‟s Least Significant Difference test at α = 0.05. The Pearson Moment Correlation test was used to test the relationship between vegetation and soil seed banks. Treatments had significant effects on herbaceous, woody species abundance and diversity (P < 0.05), but there was no significant treatment effect on soil seed bank diversity and on pre-germination treatments (P > 0.05). The annual, biennial and triennial burns were dominated by Themeda triandra while the quadrennial, sexennial and the control treatments were dominated by Sporobolus fimbriatus and Melica decumbens. A. karroo dominated the woody component across all treatments, but it did not change in abundance. S. fimbriatus was the most abundant in the soil seed bank across all the treatments and also in all pre-germination treatments. Species diversity was high in standing vegetation in the quadrennial, sexennial and the control treatments. There was no significant correlation between the standing vegetation and soil seed bank diversities (P > 0.05). Based on these findings it is apparent that fire can change vegetation in an area to be dominated by fire tolerant or fire intolerant species. Fire frequency, heat and smoke affects soil seed banks to a lesser extent in the False Thornveld. For the management of the False Thornveld of the Eastern Cape, less frequent burning is recommended as it increases aboveground species diversity.
- Full Text:
- Date Issued: 2011
- Authors: Mabuza, Thembisile Veronicah
- Date: 2011
- Subjects: Pastures -- South Africa -- Eastern Cape , Fire management -- South Africa -- Eastern Cape , Forage plants -- Evaluation , Ruminants -- Feeding and feeds , Ruminants -- Nutrition , Soil seed banks
- Language: English
- Type: Thesis , Masters , MSc Agric (Pasture Science)
- Identifier: vital:11579 , http://hdl.handle.net/10353/346 , Pastures -- South Africa -- Eastern Cape , Fire management -- South Africa -- Eastern Cape , Forage plants -- Evaluation , Ruminants -- Feeding and feeds , Ruminants -- Nutrition , Soil seed banks
- Description: Fire is generally used as a management tool for different vegetation types such as savannas and grasslands in southern Africa. In the False Thornveld of the Eastern Cape, fire is commonly used to control bush encroachment and to increase grass production, as grasses are important source of forage for domestic livestock. At the University of Fort Hare farm in the Eastern Cape, a trial was set up in 1980 to investigate the effect of burning frequency on vegetation. There are six treatments replicated twice in a completely randomized design on a 100 m x 50 m plots. The treatments comprise no burn, annual, biennial, triennial, quadrennial and sexennial burns. From this trial a study was conducted to investigate long term effect of burning frequency on species and soil seed bank diversity. Two 100 m line transects located 25 m apart were laid within each plot, and the herbaceous and woody species were identified and recorded along the line transects. Relative abundances (%) for each species were calculated for each treatment. Soil samples were collected at an interval of 13.3 m along the line transects. The samples were placed in paper bags and kept for use in a germination experiment. The seedling emergence germination method was used in the glasshouse to determine emerging seedlings, pots were filled with Hygromix growth medium and the soils from the fire trials 12 X 6 = 72 were spread on top. Soil from the control plots were also pre-treated with heat, smoke and the combination of heat and smoke. The experiment started in January 2010 and was terminated in April 2010. The Shannon-Weaver Diversity Index was used to determine species diversity for standing vegetation and germinated seedlings. Data were tested for normality and species abundances were transformed. Analysis of Variance (ANOVA) was applied to test treatment effects on geminated seedlings, species abundance and diversity at α = 0.05 significance level. Significant differences between treatment means were determined by post v hoc tests using Fischer‟s Least Significant Difference test at α = 0.05. The Pearson Moment Correlation test was used to test the relationship between vegetation and soil seed banks. Treatments had significant effects on herbaceous, woody species abundance and diversity (P < 0.05), but there was no significant treatment effect on soil seed bank diversity and on pre-germination treatments (P > 0.05). The annual, biennial and triennial burns were dominated by Themeda triandra while the quadrennial, sexennial and the control treatments were dominated by Sporobolus fimbriatus and Melica decumbens. A. karroo dominated the woody component across all treatments, but it did not change in abundance. S. fimbriatus was the most abundant in the soil seed bank across all the treatments and also in all pre-germination treatments. Species diversity was high in standing vegetation in the quadrennial, sexennial and the control treatments. There was no significant correlation between the standing vegetation and soil seed bank diversities (P > 0.05). Based on these findings it is apparent that fire can change vegetation in an area to be dominated by fire tolerant or fire intolerant species. Fire frequency, heat and smoke affects soil seed banks to a lesser extent in the False Thornveld. For the management of the False Thornveld of the Eastern Cape, less frequent burning is recommended as it increases aboveground species diversity.
- Full Text:
- Date Issued: 2011
Evaluating motivational levels of employees in a contemporary South African organisation
- Authors: Van Wyk, Charl
- Date: 2011
- Subjects: Employee motivation
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8615 , http://hdl.handle.net/10948/1542 , Employee motivation
- Description: The main purpose of this study was to evaluate the motivational levels of employees at CompSol, a contemporary South African organisation. Research for the study included a literature study of both the content and process theories of motivation in order to identify those factors that are important to consider when evaluating the levels of employee motivation. An empirical study was conducted after the appropriate measuring instrument was developed. The purpose of the measuring instrument was to identify the rank importance of these identified factors of motivation and to evaluate the levels of employee motivation by measuring the extent to which these factors are provided for in the organisation. A sample was selected from the target population, via cluster sampling, from the largest functional department within the organisation, namely the Claims processing department. The group’s dominant locus of control was also measured through the use of an appropriate measuring instrument. The major findings indicated that some of the factors of motivation were provided for to a great extent, while others had serious shortcomings. The findings were grouped into the different job title categories of the respondents in order to compare the overall responses of the groups, aimed at identifying trends, commonalities and differences. Findings also indicated that the majority of the participants have an external locus of control. The researcher suggested certain recommendations for those areas where findings indicated shortcomings, in an attempt to increase the overall levels of motivation within this specific functional department in the organisation.
- Full Text:
- Date Issued: 2011
- Authors: Van Wyk, Charl
- Date: 2011
- Subjects: Employee motivation
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8615 , http://hdl.handle.net/10948/1542 , Employee motivation
- Description: The main purpose of this study was to evaluate the motivational levels of employees at CompSol, a contemporary South African organisation. Research for the study included a literature study of both the content and process theories of motivation in order to identify those factors that are important to consider when evaluating the levels of employee motivation. An empirical study was conducted after the appropriate measuring instrument was developed. The purpose of the measuring instrument was to identify the rank importance of these identified factors of motivation and to evaluate the levels of employee motivation by measuring the extent to which these factors are provided for in the organisation. A sample was selected from the target population, via cluster sampling, from the largest functional department within the organisation, namely the Claims processing department. The group’s dominant locus of control was also measured through the use of an appropriate measuring instrument. The major findings indicated that some of the factors of motivation were provided for to a great extent, while others had serious shortcomings. The findings were grouped into the different job title categories of the respondents in order to compare the overall responses of the groups, aimed at identifying trends, commonalities and differences. Findings also indicated that the majority of the participants have an external locus of control. The researcher suggested certain recommendations for those areas where findings indicated shortcomings, in an attempt to increase the overall levels of motivation within this specific functional department in the organisation.
- Full Text:
- Date Issued: 2011
Evaluating summer cover crop species and management strategies for rainfed maize based cropping systems in the central region of the Eastern Cape Province of South Africa
- Authors: Ganyani, Lloyd Munashe
- Date: 2011
- Subjects: No-tillage , Sustainable agriculture -- South Africa -- Eastern Cape , Rain and rainfall -- South Africa -- Eastern Cape , Biomass energy -- South Africa -- Eastern Cape , Crops and climate -- South Africa -- Eastern Cape , Agricultural systems -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Crop Science)
- Identifier: vital:11865 , http://hdl.handle.net/10353/373 , No-tillage , Sustainable agriculture -- South Africa -- Eastern Cape , Rain and rainfall -- South Africa -- Eastern Cape , Biomass energy -- South Africa -- Eastern Cape , Crops and climate -- South Africa -- Eastern Cape , Agricultural systems -- South Africa -- Eastern Cape
- Description: The overall objective of the whole study was to assess whether conservation agriculture (CA) systems can work in the Eastern Cape Province (EC). The CA systems were engaged through cover cropping to address land degradation problems by emphasizing high biomass production in order to realize short term benefits such as moisture conservation, weed suppression and soil fertility benefits under rainfed conditions in the central region of the Eastern Cape province. Since rainfall is the most limiting factor to crop production in the EC, a within season rainfall distribution analysis was conducted to expose the quality of the season (onset, end and duration) and hence the feasibility of CA systems to guide agronomic decisions by farmers in EC. To assess season parameters, thirty four years of daily rainfall was collected from the University of Fort Hare Research station and used to conduct the rainy pentad (5 day rainfall totals) analysis and the daily rainfall analysis using INSTAT software programme. Based on the pentad analysis, results showed that Alice does not have a rainy season in 1 out of 2 years (50% probability) but has one in 1 out of 4 years (25% probability level). This criterion proved to be harsher and conservative when compared to the daily rainfall approach which is more precise in measuring trends on season parameters. The daily rainfall analysis indicated a 65% feasibility for the dry land cropping systems in the EC. The pentad analysis however was effective in illustrating seasonality and it showed that the wet season begins on the 1st of November, ending on the 22nd of March lasting for 140 days. Though the season duration appeared too long, the existence of dry spells during critical growth stages adversely affects the quality of the season. The daily rainfall analysis also managed to derive a signal which can guide planting decisions. For planting to be successful, this analysis determined that 20 mm of rain should be received in two consecutive days after the 1st of November. A screening trial for cover crop biomass production and weed suppression was conducted on-station Fort Hare Research Farm (32°46' S and 26° 50' E), and Msobombvu village (MSBV) (32°44' S, and 26° 55' E) over two seasons (2007/08 and 2008/09). Six summer cover crops i.e. cowpea (Vigna unguiculata), dolichos lablab (Dolichos argenteus), sunnhemp (Crotalaria juncea), buckwheat (Fagopyrum sagittatum), forage sorghum (Sorghum bicolor) and sunflower (Helianthus annus) were evaluated for biomass yield, and weed suppression. Decomposition rates, moisture conservation and residual effects of these cover crops on the succeeding main crop were also evaluated under dryland conditions. The screening trial was laid in randomized complete block design replicated three times. Forage sorghum (Sorghum bicolor) and sunflower (Helianthus annus) were identified as high biomass producers and their dry matter yields ranged from 8 -12 t ha-1. These cover crops can be useful in generating high biomass in rainfed cropping systems in the EC. Other cover crops produced 3 - 4 t ha-1 of biomass which fell short of the 6 t ha-1 expected benchmark. However, these biomass yields were important in weed management since all cover crop species showed a similar degree of weed suppression which surpassed the weed fallow treatment. As dead mulches, the cover crops failed to show residual moisture conservation and weed control benefits for the succeeding maize crop mainly because of poor residue persistence, and low harvestable fallow rainfall. Buckwheat (Fagopyrum esculentum), was selected for further investigations in a follow up trial on station in 2008/09 season because of its weed smothering qualities, suitability to short cycle rotations, and possible allelopathic properties. The trial aimed at finding weed and cost effective management options of buckwheat that are none detrimental to the succeeding maize crop. Results showed that cropping systems where buckwheat is followed by a main crop may not work as they are unprofitable with respect to R100 rand invested. Though perceived to have allelopathic properties, buckwheat failed to demonstrate the possibilities of allelopathic action against weeds. Intercropping trial was conducted on-station in 2007/8-2008/09 seasons to try and find better ways of fitting legume cover crops into maize based cropping systems without compromising production of staple cereals on limited landholdings. The trials evaluated three factors in factorial combination, cover crop planting date, intercropping strategy, and cover crop species. The trial was laid as 2 x 2 x 3 factorial arranged in a split-split plot design. The main plot factor was cover crop planting date, cover crops simultaneously planted with maize and cover crop planted two weeks after planting maize (DKC 61-25). The sub-plot factor was intercropping strategy, strip intercropping and betweenrow intercropping. The sub-sub-plot factor was cover crop species, Dolichos lablab (Dolichos argenteus (Highworth), and Cowpea Vigna ungiculata (Agrinawa) plus control plots of sole maize. Results showed that same time planting of leguminous cover crops with maize using the in-between row intercropping patterns can derive appreciable system biomass (maize/cover crop) yields, utilize land efficiently whilst getting favourable maize grain yield. Based on the rainfall analysis, results showed that the probability of success when relay seeding cover crops after two weeks into standing maize is low (15% chances of success). This suggests that relay intercropping strategies would not work due to the unavailability of a good quality season.
- Full Text:
- Date Issued: 2011
- Authors: Ganyani, Lloyd Munashe
- Date: 2011
- Subjects: No-tillage , Sustainable agriculture -- South Africa -- Eastern Cape , Rain and rainfall -- South Africa -- Eastern Cape , Biomass energy -- South Africa -- Eastern Cape , Crops and climate -- South Africa -- Eastern Cape , Agricultural systems -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc Agric (Crop Science)
- Identifier: vital:11865 , http://hdl.handle.net/10353/373 , No-tillage , Sustainable agriculture -- South Africa -- Eastern Cape , Rain and rainfall -- South Africa -- Eastern Cape , Biomass energy -- South Africa -- Eastern Cape , Crops and climate -- South Africa -- Eastern Cape , Agricultural systems -- South Africa -- Eastern Cape
- Description: The overall objective of the whole study was to assess whether conservation agriculture (CA) systems can work in the Eastern Cape Province (EC). The CA systems were engaged through cover cropping to address land degradation problems by emphasizing high biomass production in order to realize short term benefits such as moisture conservation, weed suppression and soil fertility benefits under rainfed conditions in the central region of the Eastern Cape province. Since rainfall is the most limiting factor to crop production in the EC, a within season rainfall distribution analysis was conducted to expose the quality of the season (onset, end and duration) and hence the feasibility of CA systems to guide agronomic decisions by farmers in EC. To assess season parameters, thirty four years of daily rainfall was collected from the University of Fort Hare Research station and used to conduct the rainy pentad (5 day rainfall totals) analysis and the daily rainfall analysis using INSTAT software programme. Based on the pentad analysis, results showed that Alice does not have a rainy season in 1 out of 2 years (50% probability) but has one in 1 out of 4 years (25% probability level). This criterion proved to be harsher and conservative when compared to the daily rainfall approach which is more precise in measuring trends on season parameters. The daily rainfall analysis indicated a 65% feasibility for the dry land cropping systems in the EC. The pentad analysis however was effective in illustrating seasonality and it showed that the wet season begins on the 1st of November, ending on the 22nd of March lasting for 140 days. Though the season duration appeared too long, the existence of dry spells during critical growth stages adversely affects the quality of the season. The daily rainfall analysis also managed to derive a signal which can guide planting decisions. For planting to be successful, this analysis determined that 20 mm of rain should be received in two consecutive days after the 1st of November. A screening trial for cover crop biomass production and weed suppression was conducted on-station Fort Hare Research Farm (32°46' S and 26° 50' E), and Msobombvu village (MSBV) (32°44' S, and 26° 55' E) over two seasons (2007/08 and 2008/09). Six summer cover crops i.e. cowpea (Vigna unguiculata), dolichos lablab (Dolichos argenteus), sunnhemp (Crotalaria juncea), buckwheat (Fagopyrum sagittatum), forage sorghum (Sorghum bicolor) and sunflower (Helianthus annus) were evaluated for biomass yield, and weed suppression. Decomposition rates, moisture conservation and residual effects of these cover crops on the succeeding main crop were also evaluated under dryland conditions. The screening trial was laid in randomized complete block design replicated three times. Forage sorghum (Sorghum bicolor) and sunflower (Helianthus annus) were identified as high biomass producers and their dry matter yields ranged from 8 -12 t ha-1. These cover crops can be useful in generating high biomass in rainfed cropping systems in the EC. Other cover crops produced 3 - 4 t ha-1 of biomass which fell short of the 6 t ha-1 expected benchmark. However, these biomass yields were important in weed management since all cover crop species showed a similar degree of weed suppression which surpassed the weed fallow treatment. As dead mulches, the cover crops failed to show residual moisture conservation and weed control benefits for the succeeding maize crop mainly because of poor residue persistence, and low harvestable fallow rainfall. Buckwheat (Fagopyrum esculentum), was selected for further investigations in a follow up trial on station in 2008/09 season because of its weed smothering qualities, suitability to short cycle rotations, and possible allelopathic properties. The trial aimed at finding weed and cost effective management options of buckwheat that are none detrimental to the succeeding maize crop. Results showed that cropping systems where buckwheat is followed by a main crop may not work as they are unprofitable with respect to R100 rand invested. Though perceived to have allelopathic properties, buckwheat failed to demonstrate the possibilities of allelopathic action against weeds. Intercropping trial was conducted on-station in 2007/8-2008/09 seasons to try and find better ways of fitting legume cover crops into maize based cropping systems without compromising production of staple cereals on limited landholdings. The trials evaluated three factors in factorial combination, cover crop planting date, intercropping strategy, and cover crop species. The trial was laid as 2 x 2 x 3 factorial arranged in a split-split plot design. The main plot factor was cover crop planting date, cover crops simultaneously planted with maize and cover crop planted two weeks after planting maize (DKC 61-25). The sub-plot factor was intercropping strategy, strip intercropping and betweenrow intercropping. The sub-sub-plot factor was cover crop species, Dolichos lablab (Dolichos argenteus (Highworth), and Cowpea Vigna ungiculata (Agrinawa) plus control plots of sole maize. Results showed that same time planting of leguminous cover crops with maize using the in-between row intercropping patterns can derive appreciable system biomass (maize/cover crop) yields, utilize land efficiently whilst getting favourable maize grain yield. Based on the rainfall analysis, results showed that the probability of success when relay seeding cover crops after two weeks into standing maize is low (15% chances of success). This suggests that relay intercropping strategies would not work due to the unavailability of a good quality season.
- Full Text:
- Date Issued: 2011
Evaluating sustainable human settlements programs aimed at low groups within the Buffalo City Metropolitan Municipality
- Authors: Mlaza, Thandeka
- Date: 2011
- Subjects: Low-income housing -- South Africa -- Buffalo City Metropolitan Municipality , Human settlements -- South Africa -- Buffalo City Metropolitan Municipality
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/8671 , vital:26419
- Description: Housing delivery and issues relating to housing delivery have long been a complicated subject for most SA municipalities and government departments tasked with these responsibilities. The aforementioned complications stem from our inherited apartheid planning that was mainly focused on inequality, racial segregation and spatial fragmentation of land use. Corruption, lack of skills, financial constraints and lack of resources are issues further considered to be contributors to the complications related to housing delivery. The study to be conducted seeks to play a part in dealing with the complicated nature of housing delivery through being a toolof assessment. The study is in the form of an evaluation as it mainly deals with obtaining answers relating to the views of the respondents on the sustainable human settlement program implemented as part of the DVRI in the BCMM. In doing so it, seeks to provide answers to some of the challenges faced by municipalities and other government departments so as to ensure that going forward, best practices are adopted in the housing delivery process. The findings from the study revealed primarily that, what is planned on paper is not often what is implemented on the ground. In evaluating the aims and objectives of the two sustainable human settlement pilot projects implemented as the BNG pilot projects through the DVRI, a considerable number of the objectives of the projects have not been met according to the beneficiaries. The reasons for the lack of satisfaction relating to the two projects as cited by the respondents included, amongst other things; dissatisfaction with the quality of the structure, lack of adequate services, lack of employment opportunities, lack of recreational facilities, lack of social facilities, lack of safe and reliable transportation and the general maintenance of the settlement. Solutions to the identified issues include; improved and meaningful participation between government, planners and the beneficiaries of such housing projects, so as to ensure that the views of the beneficiaries are considered and that they have a considerable influence on the decisions taken, thus promoting a bottom-up approach to the housing delivery process. The provision of key recreational and social amenities and the improved maintenance of the general settlement were also identified by the respondents as solutions.
- Full Text:
- Date Issued: 2011
- Authors: Mlaza, Thandeka
- Date: 2011
- Subjects: Low-income housing -- South Africa -- Buffalo City Metropolitan Municipality , Human settlements -- South Africa -- Buffalo City Metropolitan Municipality
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/8671 , vital:26419
- Description: Housing delivery and issues relating to housing delivery have long been a complicated subject for most SA municipalities and government departments tasked with these responsibilities. The aforementioned complications stem from our inherited apartheid planning that was mainly focused on inequality, racial segregation and spatial fragmentation of land use. Corruption, lack of skills, financial constraints and lack of resources are issues further considered to be contributors to the complications related to housing delivery. The study to be conducted seeks to play a part in dealing with the complicated nature of housing delivery through being a toolof assessment. The study is in the form of an evaluation as it mainly deals with obtaining answers relating to the views of the respondents on the sustainable human settlement program implemented as part of the DVRI in the BCMM. In doing so it, seeks to provide answers to some of the challenges faced by municipalities and other government departments so as to ensure that going forward, best practices are adopted in the housing delivery process. The findings from the study revealed primarily that, what is planned on paper is not often what is implemented on the ground. In evaluating the aims and objectives of the two sustainable human settlement pilot projects implemented as the BNG pilot projects through the DVRI, a considerable number of the objectives of the projects have not been met according to the beneficiaries. The reasons for the lack of satisfaction relating to the two projects as cited by the respondents included, amongst other things; dissatisfaction with the quality of the structure, lack of adequate services, lack of employment opportunities, lack of recreational facilities, lack of social facilities, lack of safe and reliable transportation and the general maintenance of the settlement. Solutions to the identified issues include; improved and meaningful participation between government, planners and the beneficiaries of such housing projects, so as to ensure that the views of the beneficiaries are considered and that they have a considerable influence on the decisions taken, thus promoting a bottom-up approach to the housing delivery process. The provision of key recreational and social amenities and the improved maintenance of the general settlement were also identified by the respondents as solutions.
- Full Text:
- Date Issued: 2011
Evaluating the effect of conservation agriculture basin tillage system on household food security in Mutasa
- Authors: Muchakwana, Thomasina
- Date: 2011
- Subjects: Food security -- Zimbabwe -- Mutasa District , Tillage -- Zimbabwe -- Mutasa District , Agricultural conservation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9113 , http://hdl.handle.net/10948/d1015054
- Description: The research was done with the aim of evaluating the effect of the basin tillage system as a method of conservation agriculture, on improving smallholder farmers’ food security in Mutasa, Manicaland Province in Zimbabwe. This research focussed on the 2010/2011 agricultural season. The main objectives of this study were to determine the contribution of CA basin tillage system on increasing yields per hectare, to evaluate which CA principles are being practiced by smallholder farmers, and to determine how many months the harvested maize will last. The study compares smallholder farmers who practiced CA with farmers who practiced other tillage methods. The other tillage methods are ploughing and conventional hand hoe tillage systems. On average the farmers who practiced CA used 0.47 hectares of land whilst farmers who practiced other tillage methods used an average of 0.43 hectares of land. The average amount of maize produced by smallholder farmers who practiced CA was 824 kg while who practiced other tillage methods produced an average of 498 kg. Farmers practicing CA produced yield with an average of 1175 kg/ha of maize grain while farmers who practiced other tillage methods produced an average of 946 kg/ha. Food security in this reaseach was measured by the amount of months the maize grain produced was lasting in relation with the household size. 57 percent of the farmers who practiced CA are food secure because they have maize grain to last them a full consumption year and moreover surplus. Only 27 percent of the farmers who practiced other tillage methods produced enough to last a full consumption year.
- Full Text:
- Date Issued: 2011
- Authors: Muchakwana, Thomasina
- Date: 2011
- Subjects: Food security -- Zimbabwe -- Mutasa District , Tillage -- Zimbabwe -- Mutasa District , Agricultural conservation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9113 , http://hdl.handle.net/10948/d1015054
- Description: The research was done with the aim of evaluating the effect of the basin tillage system as a method of conservation agriculture, on improving smallholder farmers’ food security in Mutasa, Manicaland Province in Zimbabwe. This research focussed on the 2010/2011 agricultural season. The main objectives of this study were to determine the contribution of CA basin tillage system on increasing yields per hectare, to evaluate which CA principles are being practiced by smallholder farmers, and to determine how many months the harvested maize will last. The study compares smallholder farmers who practiced CA with farmers who practiced other tillage methods. The other tillage methods are ploughing and conventional hand hoe tillage systems. On average the farmers who practiced CA used 0.47 hectares of land whilst farmers who practiced other tillage methods used an average of 0.43 hectares of land. The average amount of maize produced by smallholder farmers who practiced CA was 824 kg while who practiced other tillage methods produced an average of 498 kg. Farmers practicing CA produced yield with an average of 1175 kg/ha of maize grain while farmers who practiced other tillage methods produced an average of 946 kg/ha. Food security in this reaseach was measured by the amount of months the maize grain produced was lasting in relation with the household size. 57 percent of the farmers who practiced CA are food secure because they have maize grain to last them a full consumption year and moreover surplus. Only 27 percent of the farmers who practiced other tillage methods produced enough to last a full consumption year.
- Full Text:
- Date Issued: 2011
Evaluating the impact of the devolution of functions in the Department of Sports, Arts and Culture: the case of Umzimvubu Local Municipality (Eastern Cape: 2006-2010)
- Authors: Ntungwa, Celebration
- Date: 2011
- Subjects: Local government -- South Africa -- Eastern Cape , Decentralization in government -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11630 , http://hdl.handle.net/10353/547 , Local government -- South Africa -- Eastern Cape , Decentralization in government -- South Africa -- Eastern Cape
- Description: This study focused on the evaluation of the impact of the devolution of functions from head office to the districts in the Department of Sports , Recreation, Arts and Culture within Umzimvubu municipality since the department implemented the devolution of functions there have been a lot of mixed feelings on the result of the process.The study included intensive analysison the scholarly writings done on devolution delegation delocelization and decentralization.The study is underpinned by the Maslow,s theory of the hierarchy of needsQuantitative and qualitative approaches were employed in the study.The sampling composed on the departmental officials, labour unions councils and recipients of departmental services.Findings of the study pointed out that the devolution of functions was a neccesity in spite of its shortfalls and challenges which could be overcome by the submitted recommendations.
- Full Text: false
- Date Issued: 2011
- Authors: Ntungwa, Celebration
- Date: 2011
- Subjects: Local government -- South Africa -- Eastern Cape , Decentralization in government -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11630 , http://hdl.handle.net/10353/547 , Local government -- South Africa -- Eastern Cape , Decentralization in government -- South Africa -- Eastern Cape
- Description: This study focused on the evaluation of the impact of the devolution of functions from head office to the districts in the Department of Sports , Recreation, Arts and Culture within Umzimvubu municipality since the department implemented the devolution of functions there have been a lot of mixed feelings on the result of the process.The study included intensive analysison the scholarly writings done on devolution delegation delocelization and decentralization.The study is underpinned by the Maslow,s theory of the hierarchy of needsQuantitative and qualitative approaches were employed in the study.The sampling composed on the departmental officials, labour unions councils and recipients of departmental services.Findings of the study pointed out that the devolution of functions was a neccesity in spite of its shortfalls and challenges which could be overcome by the submitted recommendations.
- Full Text: false
- Date Issued: 2011
Evaluating The Potential Contribution Of Episodic Toxicity Data To Environmental Water Quality Management In South Africa
- Gordon, Andrew K, Mantel, Sukhmani K M, Muller, Nikite W J
- Authors: Gordon, Andrew K , Mantel, Sukhmani K M , Muller, Nikite W J
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/438310 , vital:73450 , ISBN 978-1-4312-0070-2 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/KV259-10.pdf
- Description: An important aspect of the dynamics of nutrients and pollutants in natural systems is captured in the concept of allochthony, founded on the observation that nutrients and energy in a variety of forms are transferred between adjacent habitats, com-munities and ecosystems that are not routinely considered as connected. Different forms of nutrients and energy move across the conceptual boundaries of habitats via organisms’ activities or physical processes such as wind or water currents, and these transfers can represent important food subsidies. Such cross-partition ecolog-ical subsidies can augment the nutritional condition, biomass and biodiversity of communities, particularly where local production (or autochthony) alone may be inadequate to support local food webs. Furthermore, organic subsidies can influ-ence population dynamics, community interactions and ecosystem processes, and can represent dominant flux inputs in ecosystem budgets. Our intention was to explore organic nutrient fluxes in relation to a primarily lotic (i.e. flowing) aquatic sys-tem at the scale of a hydrological catchment.
- Full Text:
- Date Issued: 2011
- Authors: Gordon, Andrew K , Mantel, Sukhmani K M , Muller, Nikite W J
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/438310 , vital:73450 , ISBN 978-1-4312-0070-2 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/KV259-10.pdf
- Description: An important aspect of the dynamics of nutrients and pollutants in natural systems is captured in the concept of allochthony, founded on the observation that nutrients and energy in a variety of forms are transferred between adjacent habitats, com-munities and ecosystems that are not routinely considered as connected. Different forms of nutrients and energy move across the conceptual boundaries of habitats via organisms’ activities or physical processes such as wind or water currents, and these transfers can represent important food subsidies. Such cross-partition ecolog-ical subsidies can augment the nutritional condition, biomass and biodiversity of communities, particularly where local production (or autochthony) alone may be inadequate to support local food webs. Furthermore, organic subsidies can influ-ence population dynamics, community interactions and ecosystem processes, and can represent dominant flux inputs in ecosystem budgets. Our intention was to explore organic nutrient fluxes in relation to a primarily lotic (i.e. flowing) aquatic sys-tem at the scale of a hydrological catchment.
- Full Text:
- Date Issued: 2011
Evaluating the Public Employment Services, administered by the Department of Labour in Mthatha
- Mntuyedwa, Ntandokazi Miranda
- Authors: Mntuyedwa, Ntandokazi Miranda
- Date: 2011
- Subjects: Labor market , Unemployment -- South Africa -- Mthatha , Employment agencies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9093 , http://hdl.handle.net/10948/d1011638 , Labor market , Unemployment -- South Africa -- Mthatha , Employment agencies
- Description: The Public Employment Service of South Africa (PES-SA) registers unemployed work seekers and placement opportunities to enable the Department of Labour (DoL) to place as many of these work seekers as possible in work. The aim of the present study is to identify challenges in the implementation of PES-SA, and to identify and make recommendations on areas for improvement and strengthening. The study is restricted to two of the six main PES-SA service offerings: (a) Registration Services and (b) Recruitment and Selection Services. The study was partially a process evaluation and partially an impact evaluation. The process evaluation assessed the quality of PES-SA‟s systems, structures, capacity, management and strategic focus. The purpose of the impact evaluation was to understand the challenges and gaps in delivery and implementation, the reasons behind the low matching success, and the extent of uptake by users. The evaluation therefore had a technical data-evaluation component and a component which assessed the reasons behind statistical and other quantitative data patterns. The study was conducted in Mthatha Department of Labour, Eastern Cape. The sample of the study was drawn from workseekers that are in the database and the Researcher drawn 40 respondents and the use of quantitative method was done. A questionnaire was developed and issued out to respondents. The Public Employment Service staff in Mthatha, Department of Labour was also interviewed. All five Employment Service Practitioners and a Career Counsellor were interviewed. A qualitative study was used for these respondents. In the responses of both teams it was deduced that the intention of the service is good but up to this far it has not proven any impact on the reduction of unemployment. Reasons behind the failure of the service were outlined to be the reluctance of the employers to utilise the service and the IT systems that is failing. The staff also mentioned that they were never trained on the service and therefore finds it difficult to render some of the services. Another challenge that was picked up from staff members is that the service is not yet legislated.
- Full Text:
- Date Issued: 2011
- Authors: Mntuyedwa, Ntandokazi Miranda
- Date: 2011
- Subjects: Labor market , Unemployment -- South Africa -- Mthatha , Employment agencies
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9093 , http://hdl.handle.net/10948/d1011638 , Labor market , Unemployment -- South Africa -- Mthatha , Employment agencies
- Description: The Public Employment Service of South Africa (PES-SA) registers unemployed work seekers and placement opportunities to enable the Department of Labour (DoL) to place as many of these work seekers as possible in work. The aim of the present study is to identify challenges in the implementation of PES-SA, and to identify and make recommendations on areas for improvement and strengthening. The study is restricted to two of the six main PES-SA service offerings: (a) Registration Services and (b) Recruitment and Selection Services. The study was partially a process evaluation and partially an impact evaluation. The process evaluation assessed the quality of PES-SA‟s systems, structures, capacity, management and strategic focus. The purpose of the impact evaluation was to understand the challenges and gaps in delivery and implementation, the reasons behind the low matching success, and the extent of uptake by users. The evaluation therefore had a technical data-evaluation component and a component which assessed the reasons behind statistical and other quantitative data patterns. The study was conducted in Mthatha Department of Labour, Eastern Cape. The sample of the study was drawn from workseekers that are in the database and the Researcher drawn 40 respondents and the use of quantitative method was done. A questionnaire was developed and issued out to respondents. The Public Employment Service staff in Mthatha, Department of Labour was also interviewed. All five Employment Service Practitioners and a Career Counsellor were interviewed. A qualitative study was used for these respondents. In the responses of both teams it was deduced that the intention of the service is good but up to this far it has not proven any impact on the reduction of unemployment. Reasons behind the failure of the service were outlined to be the reluctance of the employers to utilise the service and the IT systems that is failing. The staff also mentioned that they were never trained on the service and therefore finds it difficult to render some of the services. Another challenge that was picked up from staff members is that the service is not yet legislated.
- Full Text:
- Date Issued: 2011
Evaluating the sustainable management of the State indigenous forests in the Eastern Cape Province
- Authors: Quvile, Nkosipendule
- Date: 2011
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:793 , http://hdl.handle.net/10962/d1004130
- Description: This research assesses the state of sustainability of State indigenous forests in the Eastern Cape and provides recommendations to improve their sustainability. The Eastern Cape Indigenous Forest Management Audit (ECIFMA) report of 2009 provided the primary data for this assessment (DAFF, 2009). The research was inspired by the fact that the global challenge of forestry destruction and degradation where the extent of forests is being reduced at an alarming rate of 6% annually. It became essential for global leaders to develop policies and strategies that sought to promote sustainable forest management. The monitoring of sustainability of forests was only possible through use of globally and nationally developed sets of criteria and indicators. Eleven forest estates responsible for the management of State indigenous forests in the Eastern Cape were selected for this research. The choice was influenced by the availability of audit data from the ECIFMA report of 2009. This report contained performance information of 41 indicators under 18 criteria for monitoring sustainable forest management as extracted from the PCI&S assessment checklist developed for monitoring the sustainability of indigenous forests in South Africa (DWAF, 2005). The data was refined using the MCA methods (ranking and scoring) as described by Mendoza and Prabhu (2000). These methods yielded to the determination of the performance of indicators of forest sustainability. It was thus important to conclude the research by responding to the following questions: • What is the state of sustainability of the State indigenous forests in the Eastern Cape? • What recommendations could be made to improve the sustainability of State indigenous forests? It was found that the State indigenous forests were not managed in a sustainable manner. The research report is concluded by providing concrete recommendations to improve forest sustainability.
- Full Text:
- Date Issued: 2011
- Authors: Quvile, Nkosipendule
- Date: 2011
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:793 , http://hdl.handle.net/10962/d1004130
- Description: This research assesses the state of sustainability of State indigenous forests in the Eastern Cape and provides recommendations to improve their sustainability. The Eastern Cape Indigenous Forest Management Audit (ECIFMA) report of 2009 provided the primary data for this assessment (DAFF, 2009). The research was inspired by the fact that the global challenge of forestry destruction and degradation where the extent of forests is being reduced at an alarming rate of 6% annually. It became essential for global leaders to develop policies and strategies that sought to promote sustainable forest management. The monitoring of sustainability of forests was only possible through use of globally and nationally developed sets of criteria and indicators. Eleven forest estates responsible for the management of State indigenous forests in the Eastern Cape were selected for this research. The choice was influenced by the availability of audit data from the ECIFMA report of 2009. This report contained performance information of 41 indicators under 18 criteria for monitoring sustainable forest management as extracted from the PCI&S assessment checklist developed for monitoring the sustainability of indigenous forests in South Africa (DWAF, 2005). The data was refined using the MCA methods (ranking and scoring) as described by Mendoza and Prabhu (2000). These methods yielded to the determination of the performance of indicators of forest sustainability. It was thus important to conclude the research by responding to the following questions: • What is the state of sustainability of the State indigenous forests in the Eastern Cape? • What recommendations could be made to improve the sustainability of State indigenous forests? It was found that the State indigenous forests were not managed in a sustainable manner. The research report is concluded by providing concrete recommendations to improve forest sustainability.
- Full Text:
- Date Issued: 2011
Evaluating the Wald entropy from two-derivative terms in quadratic actions
- Brustein, R, Gorbonos, D, Hadad, M, Medved, A J M
- Authors: Brustein, R , Gorbonos, D , Hadad, M , Medved, A J M
- Date: 2011
- Language: English
- Type: Article
- Identifier: vital:6816 , http://hdl.handle.net/10962/d1004326
- Description: We evaluate the Wald Noether charge entropy for a black hole in generalized theories of gravity. Expanding the Lagrangian to second order in gravitational perturbations, we show that contributions to the entropy density originate only from the coefficients of two-derivative terms. The same considerations are extended to include matter fields and to show that arbitrary powers of matter fields and their symmetrized covariant derivatives cannot contribute to the entropy density. We also explain how to use the linearized gravitational field equation rather than quadratic actions to obtain the same results. Several explicit examples are presented that allow us to clarify subtle points in the derivation and application of our method.
- Full Text:
- Date Issued: 2011
- Authors: Brustein, R , Gorbonos, D , Hadad, M , Medved, A J M
- Date: 2011
- Language: English
- Type: Article
- Identifier: vital:6816 , http://hdl.handle.net/10962/d1004326
- Description: We evaluate the Wald Noether charge entropy for a black hole in generalized theories of gravity. Expanding the Lagrangian to second order in gravitational perturbations, we show that contributions to the entropy density originate only from the coefficients of two-derivative terms. The same considerations are extended to include matter fields and to show that arbitrary powers of matter fields and their symmetrized covariant derivatives cannot contribute to the entropy density. We also explain how to use the linearized gravitational field equation rather than quadratic actions to obtain the same results. Several explicit examples are presented that allow us to clarify subtle points in the derivation and application of our method.
- Full Text:
- Date Issued: 2011
Evaluation of community participation in a rural development project
- Authors: Msutu, Ntombethemba Lungisa
- Date: 2011
- Subjects: Community development -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Rural development projects -- South Africa -- Eastern Cape -- Citizen participation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9118 , http://hdl.handle.net/10948/d1015736
- Description: Finally, it is necessary to define the version of participation that is relevant to this study. In this study participation means involving all the members of the community and all the stakeholders and structures involved. Mainly the community members regardless of age, gender, disability and education should be involved from the initial stage of the project. These also include participation in meetings, because this is precisely where their needs are going to be established. The good thing about this is that their needs would voluntarily come from them in these community meetings. This therefore would give them a sense of ownership and be proud of their own project. This is something that would contribute to the project’s sustainability. How community members are going to contribute to this project should also be addressed. In this practice communities should try to avoid the tendency of the government imposing on rural communities ideas or what they need and how to achieve it. It should be kept in mind that at the end of the day these projects would be left at these communities, with the community members to look after them. The sustainability of these projects therefore depends on the community members. Community participation plays a very big role in rural development or any form of development. One needs to involve the community members in their own development project. This involvement should begin in the early stages of the rural development project, and continue throughout the project. Government agencies or officials should not impose their ideas in rural communities. It is very important for government agencies to do needs analysis and work with the rural communities. Forced contributions should be avoided by all means even if it involves labour or finances. Rural community members should be part and parcel of the project. According to Narayan (1995), the central argument for a participatory process is that involvement in decision‐making lets people exercise choice and voice more broadly in their lives, as well as in the more immediate context of development programmes that benefit them. Empowerment is thus, about the capacity building of individuals and the organisations that support them (Narayan, 1995:10).
- Full Text:
- Date Issued: 2011
- Authors: Msutu, Ntombethemba Lungisa
- Date: 2011
- Subjects: Community development -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Rural development projects -- South Africa -- Eastern Cape -- Citizen participation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9118 , http://hdl.handle.net/10948/d1015736
- Description: Finally, it is necessary to define the version of participation that is relevant to this study. In this study participation means involving all the members of the community and all the stakeholders and structures involved. Mainly the community members regardless of age, gender, disability and education should be involved from the initial stage of the project. These also include participation in meetings, because this is precisely where their needs are going to be established. The good thing about this is that their needs would voluntarily come from them in these community meetings. This therefore would give them a sense of ownership and be proud of their own project. This is something that would contribute to the project’s sustainability. How community members are going to contribute to this project should also be addressed. In this practice communities should try to avoid the tendency of the government imposing on rural communities ideas or what they need and how to achieve it. It should be kept in mind that at the end of the day these projects would be left at these communities, with the community members to look after them. The sustainability of these projects therefore depends on the community members. Community participation plays a very big role in rural development or any form of development. One needs to involve the community members in their own development project. This involvement should begin in the early stages of the rural development project, and continue throughout the project. Government agencies or officials should not impose their ideas in rural communities. It is very important for government agencies to do needs analysis and work with the rural communities. Forced contributions should be avoided by all means even if it involves labour or finances. Rural community members should be part and parcel of the project. According to Narayan (1995), the central argument for a participatory process is that involvement in decision‐making lets people exercise choice and voice more broadly in their lives, as well as in the more immediate context of development programmes that benefit them. Empowerment is thus, about the capacity building of individuals and the organisations that support them (Narayan, 1995:10).
- Full Text:
- Date Issued: 2011
Evaluation of community participation in a rural development project
- Authors: Msutu, Ntombethemba Lungisa
- Date: 2011
- Subjects: Community development -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Rural development projects -- South Africa -- Eastern Cape -- Citizen participation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9040 , http://hdl.handle.net/10948/1665 , Community development -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Rural development projects -- South Africa -- Eastern Cape -- Citizen participation
- Description: People have their own different understanding of the meaning of participation. Thus cannot put one meaning to participation. As a woman who grew up in the rural areas for most of my life, I have witnessed the problems in most of the rural development projects. I have first ‐ hand experience of how the unavailability of these projects has affected the rural communities at large, at the same time, I have witnessed how those who have managed to get some of these projects started have benefitted more ways than one way in these rural development projects. Some of these projects have become a success and some have failed dismally. What contributed to the success or failure of these very important projects needs to be examined. More importantly, the level of community participation needs to be evaluated. Relatively few studies have been conducted to evaluate community participation in rural development projects. Some, if not most of the remote villages in the Eastern Cape Province are still without those basic necessities the government has promised, such as the building of houses and provision of clean water. Another sad story is that not enough is done to educate and empower rural communities about their basic rights and needs. Hence, one of the focal points to the study is to scrutinize the level of participation of the community, as some may be suffering from ignorance, apathy and lack of motivation. to scrutinize their level of participation (community participation). As some may be suffering from ignorance, apathy and lack of motivation.
- Full Text:
- Date Issued: 2011
- Authors: Msutu, Ntombethemba Lungisa
- Date: 2011
- Subjects: Community development -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Rural development projects -- South Africa -- Eastern Cape -- Citizen participation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9040 , http://hdl.handle.net/10948/1665 , Community development -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Rural development projects -- South Africa -- Eastern Cape -- Citizen participation
- Description: People have their own different understanding of the meaning of participation. Thus cannot put one meaning to participation. As a woman who grew up in the rural areas for most of my life, I have witnessed the problems in most of the rural development projects. I have first ‐ hand experience of how the unavailability of these projects has affected the rural communities at large, at the same time, I have witnessed how those who have managed to get some of these projects started have benefitted more ways than one way in these rural development projects. Some of these projects have become a success and some have failed dismally. What contributed to the success or failure of these very important projects needs to be examined. More importantly, the level of community participation needs to be evaluated. Relatively few studies have been conducted to evaluate community participation in rural development projects. Some, if not most of the remote villages in the Eastern Cape Province are still without those basic necessities the government has promised, such as the building of houses and provision of clean water. Another sad story is that not enough is done to educate and empower rural communities about their basic rights and needs. Hence, one of the focal points to the study is to scrutinize the level of participation of the community, as some may be suffering from ignorance, apathy and lack of motivation. to scrutinize their level of participation (community participation). As some may be suffering from ignorance, apathy and lack of motivation.
- Full Text:
- Date Issued: 2011
Evaluation of model systems for the study of protein association / incorporation of Beta-Methylamino-L-Alanine (BMAA)
- Authors: Visser, Claire
- Date: 2011
- Subjects: Neurotoxic agents , Nervous system -- Diseases
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10314 , http://hdl.handle.net/10948/1451 , Neurotoxic agents , Nervous system -- Diseases
- Description: β-methylamino-L-alanine (BMAA) is thought to be a contributing factor of Amyotrophic Lateral Sclerosis-Parkinsonism Dementia Complex (ALS/PDC). It has been shown that the levels of toxin ingestion by humans are too low to cause disease. However, it has recently been theorized that this toxin is bioaccumulated within cells. Via a process of slow release from this reservoir, the BMAA is able to bring about neurotoxicity. Mechanisms of uptake and bioaccumulation of BMAA have been proposed in several publications; however the mechanism of protein incorporation of BMAA has not yet been identified. Identifying suitable model systems would be a prerequisite in order for future studies on BMAA protein incorporation. Three specific models were therefore chosen for investigation; mammalian cell lines including C2C12 and HT29, a prokaryotic (E. coli) expression system and yeast cells. The cytotoxity of BMAA was established for the mammalian cell lines and further investigation of BMAA incorporation into cellular proteins was performed on all three above mentioned models. Samples were run on HPLC-MS in order to determine uptake of BMAA into cells or lack thereof. Results indicate negligible cytotoxicity as measured by MTT and CellTitre Blue assays, limited uptake and protein incorporation of BMAA within the prokaryotic model and insignificant uptake of BMAA by yeast cells. Although the uptake of BMAA in the prokaryotic model was not extensive, there was indeed uptake. BMAA was not only taken up into the cells but was also observed in inclusion body protein samples after hydrolysis. After further investigation and use, this model could very well provide researchers with information pertaining to the mechanism of association of BMAA with proteins. Although the other models provided negative results, this research was valuable in the sense that one can narrow down the number of possible model systems available. Also, in seeking models for studying protein association/incorporation, the use of the final target cell is not relevant or necessary as the purpose of the research was to identify a model system in which the mechanism of protein association/incorporation can, in future, be studied.
- Full Text:
- Date Issued: 2011
- Authors: Visser, Claire
- Date: 2011
- Subjects: Neurotoxic agents , Nervous system -- Diseases
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10314 , http://hdl.handle.net/10948/1451 , Neurotoxic agents , Nervous system -- Diseases
- Description: β-methylamino-L-alanine (BMAA) is thought to be a contributing factor of Amyotrophic Lateral Sclerosis-Parkinsonism Dementia Complex (ALS/PDC). It has been shown that the levels of toxin ingestion by humans are too low to cause disease. However, it has recently been theorized that this toxin is bioaccumulated within cells. Via a process of slow release from this reservoir, the BMAA is able to bring about neurotoxicity. Mechanisms of uptake and bioaccumulation of BMAA have been proposed in several publications; however the mechanism of protein incorporation of BMAA has not yet been identified. Identifying suitable model systems would be a prerequisite in order for future studies on BMAA protein incorporation. Three specific models were therefore chosen for investigation; mammalian cell lines including C2C12 and HT29, a prokaryotic (E. coli) expression system and yeast cells. The cytotoxity of BMAA was established for the mammalian cell lines and further investigation of BMAA incorporation into cellular proteins was performed on all three above mentioned models. Samples were run on HPLC-MS in order to determine uptake of BMAA into cells or lack thereof. Results indicate negligible cytotoxicity as measured by MTT and CellTitre Blue assays, limited uptake and protein incorporation of BMAA within the prokaryotic model and insignificant uptake of BMAA by yeast cells. Although the uptake of BMAA in the prokaryotic model was not extensive, there was indeed uptake. BMAA was not only taken up into the cells but was also observed in inclusion body protein samples after hydrolysis. After further investigation and use, this model could very well provide researchers with information pertaining to the mechanism of association of BMAA with proteins. Although the other models provided negative results, this research was valuable in the sense that one can narrow down the number of possible model systems available. Also, in seeking models for studying protein association/incorporation, the use of the final target cell is not relevant or necessary as the purpose of the research was to identify a model system in which the mechanism of protein association/incorporation can, in future, be studied.
- Full Text:
- Date Issued: 2011
Evaluation of the in vitro differential protein adsorption patterns of didanosine-loaded nanostructured lipid carriers (NLCs) for potential targeting to the brain
- Kasongo, Kasongo W, Jansch, Mirko, Müller, Rainer H, Walker, Roderick B
- Authors: Kasongo, Kasongo W , Jansch, Mirko , Müller, Rainer H , Walker, Roderick B
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/184035 , vital:44160 , xlink:href="https://doi.org/10.3109/08982104.2010.539186"
- Description: The preferential in vitro adsorption of apolipoprotein E (Apo E) onto the surface of colloidal drug carriers may be used as a strategy to evaluate the in vivo potential for such systems to transport drugs to the brain. The aim of this research was to investigate the in vitro protein adsorption patterns of didanosine-loaded nanostructured lipid carriers (DDI-NLCs), using two-dimensional polyacrylamide gel electrophoresis (2-D PAGE), in order to establish the potential for NLCs to deliver DDI to the brain. NLC formulations were manufactured using high-pressure homogenization using a lipid matrix consisting of a mixture of Precirol® ATO 5 and Transcutol® HP. The 2-D PAGE analysis revealed that NLCs in formulations stabilized using Solutol® HS 15 alone or with a ternary surfactant system consisting of Solutol® HS 15, Tween® 80, and Lutrol® F68, preferentially adsorbed proteins, such as Apo E. Particles stabilized with Tween® 80 and Lutrol® F68 did not adsorb Apo E in these studies, which could be related to the relatively large particle size and hence small surface area observed for these NLCs. These findings have revealed that DDI-loaded NLCs may have the potential to deliver DDI to the brain in vivo and, in addition, to Tween® 80, which has already been shown to have the ability to facilitate the targeting of colloidal drug delivery systems to the brain. Solutol® HS 15–stabilized nanoparticles may also achieve a similar purpose.
- Full Text:
- Date Issued: 2011
- Authors: Kasongo, Kasongo W , Jansch, Mirko , Müller, Rainer H , Walker, Roderick B
- Date: 2011
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/184035 , vital:44160 , xlink:href="https://doi.org/10.3109/08982104.2010.539186"
- Description: The preferential in vitro adsorption of apolipoprotein E (Apo E) onto the surface of colloidal drug carriers may be used as a strategy to evaluate the in vivo potential for such systems to transport drugs to the brain. The aim of this research was to investigate the in vitro protein adsorption patterns of didanosine-loaded nanostructured lipid carriers (DDI-NLCs), using two-dimensional polyacrylamide gel electrophoresis (2-D PAGE), in order to establish the potential for NLCs to deliver DDI to the brain. NLC formulations were manufactured using high-pressure homogenization using a lipid matrix consisting of a mixture of Precirol® ATO 5 and Transcutol® HP. The 2-D PAGE analysis revealed that NLCs in formulations stabilized using Solutol® HS 15 alone or with a ternary surfactant system consisting of Solutol® HS 15, Tween® 80, and Lutrol® F68, preferentially adsorbed proteins, such as Apo E. Particles stabilized with Tween® 80 and Lutrol® F68 did not adsorb Apo E in these studies, which could be related to the relatively large particle size and hence small surface area observed for these NLCs. These findings have revealed that DDI-loaded NLCs may have the potential to deliver DDI to the brain in vivo and, in addition, to Tween® 80, which has already been shown to have the ability to facilitate the targeting of colloidal drug delivery systems to the brain. Solutol® HS 15–stabilized nanoparticles may also achieve a similar purpose.
- Full Text:
- Date Issued: 2011
Evaluation of the kinetics and mechanism of drug release from Econazole nitrate nanosponge loaded Carbapol Hydrogel
- Sharma, Renuka, Walker, Roderick B, Pathak, Kamla
- Authors: Sharma, Renuka , Walker, Roderick B , Pathak, Kamla
- Date: 2011
- Language: English
- Type: text , Article
- Identifier: vital:6437 , http://hdl.handle.net/10962/d1006614
- Description: The objective of this study was to investigate the mechanism of release of econazole nitrate (EN) nanosponges loaded hydrogel and to compare it with EN hydrogel so as to develop an extended release topical drug delivery system of EN. Nanosponges of EN were prepared using ethyl cellulose and PVA by emulsion solvent evaporation method. On the basis of pharmacotechnical evaluation nanosponges with least particle size of 230.1 nm and good rheological properties were formulated as hydrogel (F1 – F7). In vitro drug release data of EN nanosponges loaded hydrogels in phosphate buffer pH 6.8 and 7.4 when analysed by GraphPad Prism software version 4.0 San Diego, USA best fitted the Makoid-2 Banakar model (R value greater than 0.98). The Korsmeyer-Peppas release exponent (n) ranged between 0.331 – 0.418, which confirmed diffusion as the principle mechanism of drug release. The release mechanism was further confirmed by calculating the ratio of exponents A/B ratio derived from the Kopcha model.
- Full Text:
- Date Issued: 2011
- Authors: Sharma, Renuka , Walker, Roderick B , Pathak, Kamla
- Date: 2011
- Language: English
- Type: text , Article
- Identifier: vital:6437 , http://hdl.handle.net/10962/d1006614
- Description: The objective of this study was to investigate the mechanism of release of econazole nitrate (EN) nanosponges loaded hydrogel and to compare it with EN hydrogel so as to develop an extended release topical drug delivery system of EN. Nanosponges of EN were prepared using ethyl cellulose and PVA by emulsion solvent evaporation method. On the basis of pharmacotechnical evaluation nanosponges with least particle size of 230.1 nm and good rheological properties were formulated as hydrogel (F1 – F7). In vitro drug release data of EN nanosponges loaded hydrogels in phosphate buffer pH 6.8 and 7.4 when analysed by GraphPad Prism software version 4.0 San Diego, USA best fitted the Makoid-2 Banakar model (R value greater than 0.98). The Korsmeyer-Peppas release exponent (n) ranged between 0.331 – 0.418, which confirmed diffusion as the principle mechanism of drug release. The release mechanism was further confirmed by calculating the ratio of exponents A/B ratio derived from the Kopcha model.
- Full Text:
- Date Issued: 2011
Evaluation of the role of support groups in the lives of HIV positive people at Nontyatyambo and Empilweni Gompo Community Health Centres in East London, Eastern Cape
- Mkhencele, Nontando Precious
- Authors: Mkhencele, Nontando Precious
- Date: 2011
- Subjects: HIV-positive persons , Self-help groups -- South Africa -- Eastern Cape , HIV infections , AIDS (Disease) -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc (Nursing Science)
- Identifier: vital:11894 , http://hdl.handle.net/10353/d1001094 , HIV-positive persons , Self-help groups -- South Africa -- Eastern Cape , HIV infections , AIDS (Disease) -- South Africa -- Eastern Cape
- Description: South Africa has the highest number of people living with HIV/AIDS in the world. The estimated 5,7 million South Africans that are living with HIV need comprehensive and holistic care. Psychosocial support is a vital aspect of care for HIV positive people. Support groups have been identified as a basic form of psychosocial support. The aim of this study was to evaluate the role of support groups in the lives of HIV positive people in East London, Eastern Cape. A qualitative study design was implemented using focus group interviews to explore the role of HIV support groups. The research questions were designed to elicit responses pertaining to the needs, expectations and experiences of HIV positive support group attendees. Activities conducted in support groups as well as the attitude of support group members towards recruiting other HIV positive people to join the group were also explored. Findings revealed that the benefits of attending a support group included emotional and psychological support, sense of belonging to a “family”, assistance with disclosure issues, gaining information about HIV and treatment as well as material benefits such as food parcels and job opportunities. The greatest need of support group attendees was assistance in obtaining a Social Support or Disability Grant. A few negative experiences were reported which included: unfulfilled promises by people outside of the group, unfair allocation of grants and food parcels, as well as negative group dynamics at times. Support group members agreed that even though there were few negative experiences, the benefits clearly outweighed the negative experiences. Most participants agreed that they would recommend the support group to other HIV positive people so that they could also enjoy the stated benefits. In summary, the study concluded that support groups are very helpful in the lives of HIV positive people.
- Full Text:
- Date Issued: 2011
- Authors: Mkhencele, Nontando Precious
- Date: 2011
- Subjects: HIV-positive persons , Self-help groups -- South Africa -- Eastern Cape , HIV infections , AIDS (Disease) -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MSc (Nursing Science)
- Identifier: vital:11894 , http://hdl.handle.net/10353/d1001094 , HIV-positive persons , Self-help groups -- South Africa -- Eastern Cape , HIV infections , AIDS (Disease) -- South Africa -- Eastern Cape
- Description: South Africa has the highest number of people living with HIV/AIDS in the world. The estimated 5,7 million South Africans that are living with HIV need comprehensive and holistic care. Psychosocial support is a vital aspect of care for HIV positive people. Support groups have been identified as a basic form of psychosocial support. The aim of this study was to evaluate the role of support groups in the lives of HIV positive people in East London, Eastern Cape. A qualitative study design was implemented using focus group interviews to explore the role of HIV support groups. The research questions were designed to elicit responses pertaining to the needs, expectations and experiences of HIV positive support group attendees. Activities conducted in support groups as well as the attitude of support group members towards recruiting other HIV positive people to join the group were also explored. Findings revealed that the benefits of attending a support group included emotional and psychological support, sense of belonging to a “family”, assistance with disclosure issues, gaining information about HIV and treatment as well as material benefits such as food parcels and job opportunities. The greatest need of support group attendees was assistance in obtaining a Social Support or Disability Grant. A few negative experiences were reported which included: unfulfilled promises by people outside of the group, unfair allocation of grants and food parcels, as well as negative group dynamics at times. Support group members agreed that even though there were few negative experiences, the benefits clearly outweighed the negative experiences. Most participants agreed that they would recommend the support group to other HIV positive people so that they could also enjoy the stated benefits. In summary, the study concluded that support groups are very helpful in the lives of HIV positive people.
- Full Text:
- Date Issued: 2011
Evalution of income generating/poverty alleviation projects
- Authors: Mali, Phoziswa Portia
- Date: 2011
- Subjects: Economic assistance, Domestic , Poverty -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9055 , http://hdl.handle.net/10948/d1007752 , Economic assistance, Domestic , Poverty -- South Africa
- Description: Poverty alleviation is not only a South African problem; it is a global concern as well. After 16 years of democracy, poverty and unemployment are still major issues facing South Africa. Poverty is not evenly distributed in South Africa; it is largely concentrated among black Africans. This study examines the impact of income generating projects in alleviating poverty and sustaining livelihoods in Buffalo City Metropolitan Municipality South Africa. The study also demonstrates the impact of income generating projects and challenges that face these projects and makes recommendations on identified challenges. The critical question is whether the income generated meets the needs of project members and their households. Qualitative and quantitative methods were used and a questionnaire was distributed in three projects. The research findings revealed that the projects are at the heart of alleviating poverty given the fact that these projects are formed by (a) marginalised community members, (b) very low income, (c) large family size, (d) widowed breadwinners and (e) ageing group. A limitation to the study is the fact that it was small scale; therefore findings cannot be generalized to the whole Eastern Cape and South Africa. Future aspects of the study include training of project members on marketing and project management skills.
- Full Text:
- Date Issued: 2011
- Authors: Mali, Phoziswa Portia
- Date: 2011
- Subjects: Economic assistance, Domestic , Poverty -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9055 , http://hdl.handle.net/10948/d1007752 , Economic assistance, Domestic , Poverty -- South Africa
- Description: Poverty alleviation is not only a South African problem; it is a global concern as well. After 16 years of democracy, poverty and unemployment are still major issues facing South Africa. Poverty is not evenly distributed in South Africa; it is largely concentrated among black Africans. This study examines the impact of income generating projects in alleviating poverty and sustaining livelihoods in Buffalo City Metropolitan Municipality South Africa. The study also demonstrates the impact of income generating projects and challenges that face these projects and makes recommendations on identified challenges. The critical question is whether the income generated meets the needs of project members and their households. Qualitative and quantitative methods were used and a questionnaire was distributed in three projects. The research findings revealed that the projects are at the heart of alleviating poverty given the fact that these projects are formed by (a) marginalised community members, (b) very low income, (c) large family size, (d) widowed breadwinners and (e) ageing group. A limitation to the study is the fact that it was small scale; therefore findings cannot be generalized to the whole Eastern Cape and South Africa. Future aspects of the study include training of project members on marketing and project management skills.
- Full Text:
- Date Issued: 2011
Evidence-informed clinical guidelines for nursing care practices related to the safety of the mechanically ventilated patient
- Authors: Jordan, Portia Janine
- Date: 2011
- Subjects: Respiratory intensive care -- South Africa -- Port Elizabeth , Respiratory therapy -- South Africa -- Port Elizabeth , Artificial respiration -- South Africa -- Port Elizabeth , Artificial respiration -- Nursing , Respirators (Medical equipment) -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10027 , http://hdl.handle.net/10948/1322 , Respiratory intensive care -- South Africa -- Port Elizabeth , Respiratory therapy -- South Africa -- Port Elizabeth , Artificial respiration -- South Africa -- Port Elizabeth , Artificial respiration -- Nursing , Respirators (Medical equipment) -- South Africa -- Port Elizabeth
- Description: An evidence-based approach to clinical practice aims to deliver appropriate care in an efficient manner to individual patients. This approach entails the integration of research evidence, clinical expertise and the interpretation of patients' needs and perspectives in making decisions about the best care modalities. The increased emphasis internationally on improved patient care and cost effectiveness in health care delivery highlighted the need for quality health services that have to be built upon the use of best evidence to inform practice and patient-care decision-making (McKenna, Ashton and Keeney, 2004:178). Critical care nursing science, a specialised branch of nursing, focusing on the care of the critically ill patient in a designated unit, is no exception to the drive to provide improved quality and cost-effective patient care. Critical care practitioners are seen to have a specialised knowledge base, specific skills in delivering advanced health care and a commitment to serve the critically ill patient. It is expected of them to be aware of new and emerging evidence about health disease processes, treatment modalities and technology used in the critical-care units. Due to the dynamic nature of a critical care unit, it is essential that every practitioner working in the unit, whether a novice professional nurse or senior unit manager, needs to be aware of the current evidence guiding their practices (Elliot, Aitken, Chaboyer, 2007:18). With reference to the critically ill patient who is connected to a mechanical ventilator, practices related to the nursing care of this group of patients, who mostly occupy the critical care units, should be based on the best evidence in order to provide cost-effective and quality care. The research study aimed to explore and describe four identified nursing care practices related to safety of a mechanically ventilated patient as performed by professional nurses in the critical care units in the Nelson Mandela Metropole. The identified nursing-care practices include: endotrachael tube placement verification, endotracheal tube cuff pressure monitoring, endotrachael tube suctioning and mechanical ventilator settings. This objective was operationalized in Stage One of the study, by using a quantitative, explorative, descriptive and contextual approach. A structured questionnaire was utilised to collect data from professional nurses working in critical care units. From the analysed data, it was decided to select the two nursing care practices that were done least according to the best recommended practice, namely endotracheal tube suctioning and endotracheal tube cuff pressure monitoring. Based on the results, systematic reviews were done respectively on the two nursing care practices. On completion of Stage One of the study, evidence-informed clinical guidelines for the two identified nursing care practices were developed. The clinical guidelines were based on the evidence found in conducting the systematic reviews. The draft clinical guidelines were reviewed by an expert panel. Feedback from the reviewers was considered to prepare the final evidence-informed clinical guidelines. Based on the clinical guidelines, two clinical algorithms were developed, which might be used at the patient's bedside and can assist in quick dissemination of the recommendations for practice. Ethical considerations were maintained throughout the study. The quality of the study was ensured in applying the principles of validity and reliability as well as performing a critical appraisal of all data collected during the systematic review. It is envisaged that the study findings be disseminated in the critical care units in the Nelson Mandela Metropole and published in peer reviewed journals.
- Full Text:
- Date Issued: 2011
- Authors: Jordan, Portia Janine
- Date: 2011
- Subjects: Respiratory intensive care -- South Africa -- Port Elizabeth , Respiratory therapy -- South Africa -- Port Elizabeth , Artificial respiration -- South Africa -- Port Elizabeth , Artificial respiration -- Nursing , Respirators (Medical equipment) -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10027 , http://hdl.handle.net/10948/1322 , Respiratory intensive care -- South Africa -- Port Elizabeth , Respiratory therapy -- South Africa -- Port Elizabeth , Artificial respiration -- South Africa -- Port Elizabeth , Artificial respiration -- Nursing , Respirators (Medical equipment) -- South Africa -- Port Elizabeth
- Description: An evidence-based approach to clinical practice aims to deliver appropriate care in an efficient manner to individual patients. This approach entails the integration of research evidence, clinical expertise and the interpretation of patients' needs and perspectives in making decisions about the best care modalities. The increased emphasis internationally on improved patient care and cost effectiveness in health care delivery highlighted the need for quality health services that have to be built upon the use of best evidence to inform practice and patient-care decision-making (McKenna, Ashton and Keeney, 2004:178). Critical care nursing science, a specialised branch of nursing, focusing on the care of the critically ill patient in a designated unit, is no exception to the drive to provide improved quality and cost-effective patient care. Critical care practitioners are seen to have a specialised knowledge base, specific skills in delivering advanced health care and a commitment to serve the critically ill patient. It is expected of them to be aware of new and emerging evidence about health disease processes, treatment modalities and technology used in the critical-care units. Due to the dynamic nature of a critical care unit, it is essential that every practitioner working in the unit, whether a novice professional nurse or senior unit manager, needs to be aware of the current evidence guiding their practices (Elliot, Aitken, Chaboyer, 2007:18). With reference to the critically ill patient who is connected to a mechanical ventilator, practices related to the nursing care of this group of patients, who mostly occupy the critical care units, should be based on the best evidence in order to provide cost-effective and quality care. The research study aimed to explore and describe four identified nursing care practices related to safety of a mechanically ventilated patient as performed by professional nurses in the critical care units in the Nelson Mandela Metropole. The identified nursing-care practices include: endotrachael tube placement verification, endotracheal tube cuff pressure monitoring, endotrachael tube suctioning and mechanical ventilator settings. This objective was operationalized in Stage One of the study, by using a quantitative, explorative, descriptive and contextual approach. A structured questionnaire was utilised to collect data from professional nurses working in critical care units. From the analysed data, it was decided to select the two nursing care practices that were done least according to the best recommended practice, namely endotracheal tube suctioning and endotracheal tube cuff pressure monitoring. Based on the results, systematic reviews were done respectively on the two nursing care practices. On completion of Stage One of the study, evidence-informed clinical guidelines for the two identified nursing care practices were developed. The clinical guidelines were based on the evidence found in conducting the systematic reviews. The draft clinical guidelines were reviewed by an expert panel. Feedback from the reviewers was considered to prepare the final evidence-informed clinical guidelines. Based on the clinical guidelines, two clinical algorithms were developed, which might be used at the patient's bedside and can assist in quick dissemination of the recommendations for practice. Ethical considerations were maintained throughout the study. The quality of the study was ensured in applying the principles of validity and reliability as well as performing a critical appraisal of all data collected during the systematic review. It is envisaged that the study findings be disseminated in the critical care units in the Nelson Mandela Metropole and published in peer reviewed journals.
- Full Text:
- Date Issued: 2011
Examining Malawi's administrative reform and its impact on service delivery
- Authors: Mabomba, Annie Chisomo
- Date: 2011
- Subjects: Administrative agencies -- Malawi -- Management , Executive departments -- Malawi -- Management , Municipal services -- Malawi
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11640 , http://hdl.handle.net/10353/d1001249 , Administrative agencies -- Malawi -- Management , Executive departments -- Malawi -- Management , Municipal services -- Malawi
- Description: The advent of multi-party democracy in 1994 spearheaded different reforms in the Malawi public sector. One prominent reform is administrative reform. The new government that was ushered into power instituted a policy on civil service reform and institutional development. The reforms that were introduced aimed at improving performance and enhancing efficiency and effectiveness in the delivery of services. Accordingly, a Public Service Act was promulgated that constituted the clarification of the role of the civil service; equal access to public employment; merit based recruitment and promotion; and increased accountability and transparency in the policies and practices of the public service. This study therefore seeks to examine administrative reforms in Malawi and assess their impact on service delivery. The research further endeavours to explore factors which block the successful implementation of reform programmes, and seeks to come up with areas of improvement which would ensure successful implementation of reform programmes in future. The scope of this research is limited to the current civil service reform programmes and is mainly based on primary and secondary sources of information. The study uses a combination of quantitative and qualitative methods. However, findings reveal that reforms had a negative impact on service delivery since no significant change in the delivery of services was registered. The Malawi civil service continues to suffer from unprofessionalism, inefficiency, corruption and a host of other problems. The study shows the gap between rhetoric and reality of civil service reform programmes in Malawi.
- Full Text:
- Date Issued: 2011
- Authors: Mabomba, Annie Chisomo
- Date: 2011
- Subjects: Administrative agencies -- Malawi -- Management , Executive departments -- Malawi -- Management , Municipal services -- Malawi
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11640 , http://hdl.handle.net/10353/d1001249 , Administrative agencies -- Malawi -- Management , Executive departments -- Malawi -- Management , Municipal services -- Malawi
- Description: The advent of multi-party democracy in 1994 spearheaded different reforms in the Malawi public sector. One prominent reform is administrative reform. The new government that was ushered into power instituted a policy on civil service reform and institutional development. The reforms that were introduced aimed at improving performance and enhancing efficiency and effectiveness in the delivery of services. Accordingly, a Public Service Act was promulgated that constituted the clarification of the role of the civil service; equal access to public employment; merit based recruitment and promotion; and increased accountability and transparency in the policies and practices of the public service. This study therefore seeks to examine administrative reforms in Malawi and assess their impact on service delivery. The research further endeavours to explore factors which block the successful implementation of reform programmes, and seeks to come up with areas of improvement which would ensure successful implementation of reform programmes in future. The scope of this research is limited to the current civil service reform programmes and is mainly based on primary and secondary sources of information. The study uses a combination of quantitative and qualitative methods. However, findings reveal that reforms had a negative impact on service delivery since no significant change in the delivery of services was registered. The Malawi civil service continues to suffer from unprofessionalism, inefficiency, corruption and a host of other problems. The study shows the gap between rhetoric and reality of civil service reform programmes in Malawi.
- Full Text:
- Date Issued: 2011
Exchange rate behavior in the cases of the Zambian Kwacha and Malawian Kwacha : is there misalignment?
- Magwizi, Brenda Thandekha, Rhodes University
- Authors: Magwizi, Brenda Thandekha , Rhodes University
- Date: 2011
- Subjects: Foreign exchange rates -- Zambia Foreign exchange rates -- Malawi International relations -- Case studies -- Zambia International relations -- Case studies -- Malawi
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:974 , http://hdl.handle.net/10962/d1002708
- Description: The exchange rate is the price of one currency against another currency or currencies of a group of countries. Real exchange rates are important because they show the external competitiveness of a country‟s economy. Thus, when the exchange rate of a country is misaligned, this will affect its trade, production and the welfare of people. This study analysed macroeconomic determinants of the real exchange rate and dynamic adjustment of the real exchange rate as a result of shocks to these determinants. The study also determined the extent of misalignment of the real exchange rate in Malawi and Zambia and identified variables that contributed to it. Such information is important to policy makers. Quarterly data were used for both countries from 1980:1-2008:4. The literature review identified those variables that determine the exchange rate and these include government consumption, foreign aid, net foreign assets, commodity prices, terms of trade, domestic credit, openness and the Balassa Samuelson effect (technological progress). To determine the long-run relationship between the exchange rate and its determinants, we employed the Johansen approach and the Vector Error Correction Model (VECM). For robustness check on the long-run and shortrun effects of determinants on the exchange rate, variance decomposition and impulse response analyses were used. Results in the study show that in Malawi for both models, an increase in LAID, LGCON and LTOT resulted in real exchange rate depreciation and increases in LDC, NFA and LNEER resulted in an appreciation. In Zambia, increases in LAID, LGCON, LOPEN and LTOT caused the real exchange rate to depreciate while increases in LDC, NFA and LCOPPER led to an appreciation. Lagged LREER and LNEER were found to have short run effects on the equilibrium exchange rate for Malawi and lagged LCOPPER and LDC for Zambia. Periods of exchange rate misalignment were found in both countries. It was also found that the coefficient of speed of adjustment in Malawi in models 1 and 2 indicate that 11% and 27% of the variation in the real exchange rate from its equilibrium adjust each quarter respectively. The speed of adjustment for Zambia in both models was 45% and 47% respectively, higher than that of Malawi. Foreign aid has proven to be important in exchange rate misalignment in both countries, though this was not really expected in the case of Zambia. Given these results, it may be of interest to policy makers to understand which variables impact most on the exchange rate and how misalignment due to these determinants can be minimised.
- Full Text:
- Date Issued: 2011
- Authors: Magwizi, Brenda Thandekha , Rhodes University
- Date: 2011
- Subjects: Foreign exchange rates -- Zambia Foreign exchange rates -- Malawi International relations -- Case studies -- Zambia International relations -- Case studies -- Malawi
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:974 , http://hdl.handle.net/10962/d1002708
- Description: The exchange rate is the price of one currency against another currency or currencies of a group of countries. Real exchange rates are important because they show the external competitiveness of a country‟s economy. Thus, when the exchange rate of a country is misaligned, this will affect its trade, production and the welfare of people. This study analysed macroeconomic determinants of the real exchange rate and dynamic adjustment of the real exchange rate as a result of shocks to these determinants. The study also determined the extent of misalignment of the real exchange rate in Malawi and Zambia and identified variables that contributed to it. Such information is important to policy makers. Quarterly data were used for both countries from 1980:1-2008:4. The literature review identified those variables that determine the exchange rate and these include government consumption, foreign aid, net foreign assets, commodity prices, terms of trade, domestic credit, openness and the Balassa Samuelson effect (technological progress). To determine the long-run relationship between the exchange rate and its determinants, we employed the Johansen approach and the Vector Error Correction Model (VECM). For robustness check on the long-run and shortrun effects of determinants on the exchange rate, variance decomposition and impulse response analyses were used. Results in the study show that in Malawi for both models, an increase in LAID, LGCON and LTOT resulted in real exchange rate depreciation and increases in LDC, NFA and LNEER resulted in an appreciation. In Zambia, increases in LAID, LGCON, LOPEN and LTOT caused the real exchange rate to depreciate while increases in LDC, NFA and LCOPPER led to an appreciation. Lagged LREER and LNEER were found to have short run effects on the equilibrium exchange rate for Malawi and lagged LCOPPER and LDC for Zambia. Periods of exchange rate misalignment were found in both countries. It was also found that the coefficient of speed of adjustment in Malawi in models 1 and 2 indicate that 11% and 27% of the variation in the real exchange rate from its equilibrium adjust each quarter respectively. The speed of adjustment for Zambia in both models was 45% and 47% respectively, higher than that of Malawi. Foreign aid has proven to be important in exchange rate misalignment in both countries, though this was not really expected in the case of Zambia. Given these results, it may be of interest to policy makers to understand which variables impact most on the exchange rate and how misalignment due to these determinants can be minimised.
- Full Text:
- Date Issued: 2011