Peri-urban agriculture and population growth : the case of Asmara, Eritrea
- Authors: Fessahaie, Tesfamichael
- Date: 2012
- Subjects: Urban agriculture -- Eritrea -- Asmara , Cities and towns -- Eritrea -- Asmara -- Growth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10668 , http://hdl.handle.net/10948/d109790
- Description: The aim of this thesis is to provide a differentiated view of peri-urban agriculture in the context of urban population growth in Asmara, Eritrea. Peri-urban agriculture is viewed as a distinct type of broader urban agriculture, and in this case is not as subsistence-orientated as other branches of it. Urban population growth is comprised of three elements, namely, natural population increase, rural-urban migration and outward movement of people to the urban periphery linked to urban expansion. Each receives extensive treatment. Asmara is the capital city of Eritrea and using Weeks (2004:473) phrase can be termed as a “primate city”. As such, it exerts a major influence on the political, economic and cultural life of the country, but has never been subjected to this type of research. The analytical framework that is adopted is that of urban population growth. In order to operationalize it, theoretical insights into each of its three branches were applied. For example, the informalisation of the economy in developing cities was used to explain the operation of peri-urban agriculture in the context of natural population growth. An adaption of the original Harris-Todaro Model by Fields (2004) was used for the migrants, and the Mosaic Model by Bryant and Johnson (1992) for those facing urban encroachment. Primary data were collected in the field by the author with the help of research assistants. This was supplemented by secondary data which involved reports commissioned by the Ministry of Agriculture and the Ministry of Public Works. Focus Group discussions were also held to supplement the data with information, views and insights that do not emerge in one-to-one interviews. This thesis demonstrates that those respondents operating within the context of natural population growth make a viable living from peri-urban agriculture, but that they also recognise that there are considerable challenges to be faced. Three sub-groups of farmers are identified. Of these, poultry farmers are the most vulnerable because of the high costs of the inputs, the uncertainty associated with avian „flu and an undeveloped distribution network. The vegetable producers, on the other hand, have a sophisticated marketing network, but low levels of education, high household numbers and an impending shortage of land and water. The agriculturalists that have migrated to Asmara seem to have created sustainable occupations for themselves over a number of years. However, 75 percent of them felt that migration to Asmara was not worthwhile. This negative view is explained in terms of the struggle it has taken to maintain such a living and the growing shortage of land. This set of farmers achieves lower production levels than its city-reared counterparts, carries considerable expenses and has to hire its land. The farmers who have had to cope with urban encroachment fall into two classes. The first has chosen to remain in peri-urban agriculture despite feeling the pressure to scale down activities and thus have a lower income. The majority of this group are dairy farmers who have to trade off increasing costs of cattle feed against shrinking grazing land. They are unwilling to take the initiative to solve their land problems, but look to the authorities to do so. The second class of respondents in this category have abandoned their agricultural holdings. The majority of these agriculturalists are poultry farmers living in the Eastern side of the city. A shortage of agricultural land, high population densities and high costs of inputs make poultry farming difficult. This thesis, therefore, presents a multifaceted view of peri-urban agriculture. While each set of farmers has to cope with its own particular circumstances, there is a common factor. This is the tension between preserving agricultural land on the urban fringe and the need to expand the city to accommodate its inhabitants.
- Full Text:
- Date Issued: 2012
- Authors: Fessahaie, Tesfamichael
- Date: 2012
- Subjects: Urban agriculture -- Eritrea -- Asmara , Cities and towns -- Eritrea -- Asmara -- Growth
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:10668 , http://hdl.handle.net/10948/d109790
- Description: The aim of this thesis is to provide a differentiated view of peri-urban agriculture in the context of urban population growth in Asmara, Eritrea. Peri-urban agriculture is viewed as a distinct type of broader urban agriculture, and in this case is not as subsistence-orientated as other branches of it. Urban population growth is comprised of three elements, namely, natural population increase, rural-urban migration and outward movement of people to the urban periphery linked to urban expansion. Each receives extensive treatment. Asmara is the capital city of Eritrea and using Weeks (2004:473) phrase can be termed as a “primate city”. As such, it exerts a major influence on the political, economic and cultural life of the country, but has never been subjected to this type of research. The analytical framework that is adopted is that of urban population growth. In order to operationalize it, theoretical insights into each of its three branches were applied. For example, the informalisation of the economy in developing cities was used to explain the operation of peri-urban agriculture in the context of natural population growth. An adaption of the original Harris-Todaro Model by Fields (2004) was used for the migrants, and the Mosaic Model by Bryant and Johnson (1992) for those facing urban encroachment. Primary data were collected in the field by the author with the help of research assistants. This was supplemented by secondary data which involved reports commissioned by the Ministry of Agriculture and the Ministry of Public Works. Focus Group discussions were also held to supplement the data with information, views and insights that do not emerge in one-to-one interviews. This thesis demonstrates that those respondents operating within the context of natural population growth make a viable living from peri-urban agriculture, but that they also recognise that there are considerable challenges to be faced. Three sub-groups of farmers are identified. Of these, poultry farmers are the most vulnerable because of the high costs of the inputs, the uncertainty associated with avian „flu and an undeveloped distribution network. The vegetable producers, on the other hand, have a sophisticated marketing network, but low levels of education, high household numbers and an impending shortage of land and water. The agriculturalists that have migrated to Asmara seem to have created sustainable occupations for themselves over a number of years. However, 75 percent of them felt that migration to Asmara was not worthwhile. This negative view is explained in terms of the struggle it has taken to maintain such a living and the growing shortage of land. This set of farmers achieves lower production levels than its city-reared counterparts, carries considerable expenses and has to hire its land. The farmers who have had to cope with urban encroachment fall into two classes. The first has chosen to remain in peri-urban agriculture despite feeling the pressure to scale down activities and thus have a lower income. The majority of this group are dairy farmers who have to trade off increasing costs of cattle feed against shrinking grazing land. They are unwilling to take the initiative to solve their land problems, but look to the authorities to do so. The second class of respondents in this category have abandoned their agricultural holdings. The majority of these agriculturalists are poultry farmers living in the Eastern side of the city. A shortage of agricultural land, high population densities and high costs of inputs make poultry farming difficult. This thesis, therefore, presents a multifaceted view of peri-urban agriculture. While each set of farmers has to cope with its own particular circumstances, there is a common factor. This is the tension between preserving agricultural land on the urban fringe and the need to expand the city to accommodate its inhabitants.
- Full Text:
- Date Issued: 2012
A framework to investigate risk management in commercial banks
- Authors: Fick, William
- Date: 2012
- Subjects: Banks and banking -- Risk management , Risk management , Asset-liability management
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9288 , http://hdl.handle.net/10948/d1009429 , Banks and banking -- Risk management , Risk management , Asset-liability management
- Description: Businesses are continuously exposed to a changing business environment which may either exert positive or negative influences on profitability. The banking industry, in particular, is highly competitive and bank failures can have significant consequences for customers. Commercial banks, therefore, have a responsibility to protect their customers by implementing sound risk management strategies. In light of the recent financial crises (since 2007), risk management has once again become a popular topic of discussion since adequate risk management should have prevented or minimised the impact of the risks faced by failed banks. The primary objective of this study was to develop a framework that could be used by South African commercial banks to investigate risk management. Qualitative research was conducted in this regard. From this, findings and recommendations were derived in order to provide banks with a tool by which they could assess their exposure to risk. Various journals, websites, newspapers, bank reports and textbooks were consulted in support of the literature. The literature provided background information on the history and development of the risk management process. Considerable attention was given to the categories of risk that an adequate risk management framework should address. Furthermore, the current models used to manage risk in commercial bank were provided, as well as the specific reasons for bank failures. The main findings of this study were the identification of the most significant reasons for banking failures. These were identified as capital inadequacy, credit risk due to non-performing loans and a lack of banking supervision. In addition to these reasons, several other contributing principles were identified as important factors to be included in a risk management framework. A risk management framework was thus constructed in Table 5.1 based on the literature regarding global banking failures and the relevant conclusions made by the researcher.
- Full Text:
- Date Issued: 2012
- Authors: Fick, William
- Date: 2012
- Subjects: Banks and banking -- Risk management , Risk management , Asset-liability management
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9288 , http://hdl.handle.net/10948/d1009429 , Banks and banking -- Risk management , Risk management , Asset-liability management
- Description: Businesses are continuously exposed to a changing business environment which may either exert positive or negative influences on profitability. The banking industry, in particular, is highly competitive and bank failures can have significant consequences for customers. Commercial banks, therefore, have a responsibility to protect their customers by implementing sound risk management strategies. In light of the recent financial crises (since 2007), risk management has once again become a popular topic of discussion since adequate risk management should have prevented or minimised the impact of the risks faced by failed banks. The primary objective of this study was to develop a framework that could be used by South African commercial banks to investigate risk management. Qualitative research was conducted in this regard. From this, findings and recommendations were derived in order to provide banks with a tool by which they could assess their exposure to risk. Various journals, websites, newspapers, bank reports and textbooks were consulted in support of the literature. The literature provided background information on the history and development of the risk management process. Considerable attention was given to the categories of risk that an adequate risk management framework should address. Furthermore, the current models used to manage risk in commercial bank were provided, as well as the specific reasons for bank failures. The main findings of this study were the identification of the most significant reasons for banking failures. These were identified as capital inadequacy, credit risk due to non-performing loans and a lack of banking supervision. In addition to these reasons, several other contributing principles were identified as important factors to be included in a risk management framework. A risk management framework was thus constructed in Table 5.1 based on the literature regarding global banking failures and the relevant conclusions made by the researcher.
- Full Text:
- Date Issued: 2012
Characterising the stress-life response of mechanical and laser formed titanium components
- Authors: Fidder, Herman
- Date: 2012
- Subjects: Titanium alloys -- Fatigue , Titanium --- Fatigue , Materials -- Mechanical properties
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9634 , http://hdl.handle.net/10948/d1018462
- Description: This dissertation involves the experimental investigation of commercially pure titanium (CP Ti) which was subjected to laser forming and mechanical forming processes. Commercially pure titanium grade 2 was formed to a radius of curvature of approximately 120 mm using three forming procedures, i.e. i) laser forming; ii) mechanical forming (stretched forming) and iii) a combined forming process (laser-mechanical forming). Fatigue testing revealed, for all the forming processes, that samples produced by laser forming performed the best at high load settings. However, mechanically formed specimens performed the best at low load settings, whereas the laser-mechanical process resulted in midway performance between laser and mechanical processing. Considering microstructure vs fatigue; impact vs fatigue; and residual stress vs fatigue; at high load settings it is evident that the microstructure is the dominant contributor to crack initiation and growth. Crack morphology of fatigue samples revealed that secondary cracks (parallel to main crack front) followed the grain boundaries of the Widmanstätten microstructure, whereas irregular secondary cracks grew parallel and through the twinning planes and along the grain boundaries of the equiaxed microstructure. Laser forming resulted in microstructural changes from equiaxed grains to a Widmanstätten structure due to fast cooling rates. Excessive twinning is developed within the equiaxed microstructure after the mechanical forming procedure. This is due to cold working / strain hardening. The combined process shows a combination of equiaxed grains and Widmanstätten microstructure. Residual stress relieved for all forming processes revealed an increase in the magnitude of the residual stress compared to the parent plate and that the maximum values were obtained at the inner radius of curvature (i.e. 118.4 mm). Laser forming revealed the highest values in residual stress whereas the other two processes i.e. mechanical and laser-mechanical forming exhibited an increase midway between the parent plate and laser forming. The second most influential factor with regards to fatigue was the magnitude of the residual stress, especially at medium to low load settings. When considering theoretical models to predict fatigue life it was found that the Goodman model showed the closest relation to the actual fatigue data when considering the entire theoretical curve. Vickers microhardness profiling was applied to the thickness of the samples for the parent plate and all forming processes. No significant hardening occurred due to the forming processes and differences in hardness were considered negligible. Charpy impact testing revealed that the laser formed specimens exhibited the most brittle behaviour when compared to the parent plate results. Mechanical formed specimens showed a slight increase in brittleness compared to parent plate whereas the combined process yielded results midway between the laser and mechanically formed specimens. Mathematical equations are formulated and presented for predicting the fatigue life of CP Ti grade 2 for the parent plate and the three forming processes. This study proved that the laser forming process can be successfully used as a production stage in the forming of CP Ti grade 2.
- Full Text:
- Date Issued: 2012
- Authors: Fidder, Herman
- Date: 2012
- Subjects: Titanium alloys -- Fatigue , Titanium --- Fatigue , Materials -- Mechanical properties
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9634 , http://hdl.handle.net/10948/d1018462
- Description: This dissertation involves the experimental investigation of commercially pure titanium (CP Ti) which was subjected to laser forming and mechanical forming processes. Commercially pure titanium grade 2 was formed to a radius of curvature of approximately 120 mm using three forming procedures, i.e. i) laser forming; ii) mechanical forming (stretched forming) and iii) a combined forming process (laser-mechanical forming). Fatigue testing revealed, for all the forming processes, that samples produced by laser forming performed the best at high load settings. However, mechanically formed specimens performed the best at low load settings, whereas the laser-mechanical process resulted in midway performance between laser and mechanical processing. Considering microstructure vs fatigue; impact vs fatigue; and residual stress vs fatigue; at high load settings it is evident that the microstructure is the dominant contributor to crack initiation and growth. Crack morphology of fatigue samples revealed that secondary cracks (parallel to main crack front) followed the grain boundaries of the Widmanstätten microstructure, whereas irregular secondary cracks grew parallel and through the twinning planes and along the grain boundaries of the equiaxed microstructure. Laser forming resulted in microstructural changes from equiaxed grains to a Widmanstätten structure due to fast cooling rates. Excessive twinning is developed within the equiaxed microstructure after the mechanical forming procedure. This is due to cold working / strain hardening. The combined process shows a combination of equiaxed grains and Widmanstätten microstructure. Residual stress relieved for all forming processes revealed an increase in the magnitude of the residual stress compared to the parent plate and that the maximum values were obtained at the inner radius of curvature (i.e. 118.4 mm). Laser forming revealed the highest values in residual stress whereas the other two processes i.e. mechanical and laser-mechanical forming exhibited an increase midway between the parent plate and laser forming. The second most influential factor with regards to fatigue was the magnitude of the residual stress, especially at medium to low load settings. When considering theoretical models to predict fatigue life it was found that the Goodman model showed the closest relation to the actual fatigue data when considering the entire theoretical curve. Vickers microhardness profiling was applied to the thickness of the samples for the parent plate and all forming processes. No significant hardening occurred due to the forming processes and differences in hardness were considered negligible. Charpy impact testing revealed that the laser formed specimens exhibited the most brittle behaviour when compared to the parent plate results. Mechanical formed specimens showed a slight increase in brittleness compared to parent plate whereas the combined process yielded results midway between the laser and mechanically formed specimens. Mathematical equations are formulated and presented for predicting the fatigue life of CP Ti grade 2 for the parent plate and the three forming processes. This study proved that the laser forming process can be successfully used as a production stage in the forming of CP Ti grade 2.
- Full Text:
- Date Issued: 2012
Movements of sub-adult sicklefin lemon sharks Negaprion acutidens in a remote Indian Ocean atoll
- Authors: Filmalter, John David
- Date: 2012
- Subjects: Silky shark , Silky shark -- Habitat , Sharks -- Amirante Islands (Seychelles)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5383 , http://hdl.handle.net/10962/d1018229
- Description: The sicklefin lemon shark Negaprion acutidens is a large-bodied (> 3m) coastal shark species, widely distributed in tropical and sub-tropical Indo-Pacific waters. Despite its large size and wide distribution, very little is known about its movement behaviour throughout ontogeny. The primary aim of this thesis was to gain an understanding of the movements of sub-adult N. acutidens, in and around the St. Joseph Atoll, Republic of Seychelles, to facilitate the effective conservation of this vulnerable species. A total of 22 sharks (139 – 202 cm TL) were equipped with coded acoustic transmitters and passively monitored using moored acoustic receivers for a period of 20 month from March 2009 to October 2010. The use of passive acoustic telemetry arrays to study behavioural ecology has increased in popularity in recent years and been successfully applied to study a host of teleost and elasmobranch species in a diversity of habitats, ranging from sheltered estuaries to the offshore pelagic environment. However, the practicalities of designing an effective network of receivers to optimally monitor animal movements can be challenging. In this study the receiver array was optimised through a series of incremental steps to achieve an efficient design that allowed for the specific objectives to be addressed. The specific objectives of this study were to i) gain an understanding of the long term space use patterns and site fidelity of sub-adult N. acutidens within degree of use of the St. Joseph Atoll lagoon and surrounding habitats, and ii) investigate their short term behavioural patterns in response to natural rhythmic cycles. The important role the atoll plays in the sub-adult stage of this species was demonstrated by the very low numbers of detections outside the atoll compared to the very large numbers of detections inside the atoll. Over the course of a year the tagged sharks showed a high degree of site fidelity to the atoll, with 79 – 100% of the individuals detected during each month and 50% being detected on a near daily basis. This result provides testimony of the nursery role of the atoll and importance of these habitats in the early life history for this species. Individual area use was generally found to be restricted to the eastern part of the atoll incorporating a portion of the central deep lagoon and a nearby adjacent area of the sand flats. The movements of sub-adult N. acutidens on and off of the shallow flats surrounding the central lagoon (likely for foraging) were found to be strongly influenced by the tidal height and the diel cycle. Tagged sharks were found to utilise the flats more regularly when the tidal height was greater than 90 cm and particularly more so during the night and early morning than during daylight times. The combined results of this study expose the vulnerability of this species to rapid local depletion. Similarly, the effectiveness of spatial management measures, such as no-take marine protected areas is highlighted as an efficient tool for the future conservation of this species. In the St. Joseph Atoll in particular, the use of a multi-levelled protection approach, where the eastern portion on the atoll is completely restricted while the remaining area is utilized for non-consumptive tourism activities, could be highly effective. Future research should investigate changes in area use throughout the ontogeny of this species as well improve the understanding of the breeding site fidelity and population size of reproductive females using the St. Joseph Atoll.
- Full Text:
- Date Issued: 2012
- Authors: Filmalter, John David
- Date: 2012
- Subjects: Silky shark , Silky shark -- Habitat , Sharks -- Amirante Islands (Seychelles)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5383 , http://hdl.handle.net/10962/d1018229
- Description: The sicklefin lemon shark Negaprion acutidens is a large-bodied (> 3m) coastal shark species, widely distributed in tropical and sub-tropical Indo-Pacific waters. Despite its large size and wide distribution, very little is known about its movement behaviour throughout ontogeny. The primary aim of this thesis was to gain an understanding of the movements of sub-adult N. acutidens, in and around the St. Joseph Atoll, Republic of Seychelles, to facilitate the effective conservation of this vulnerable species. A total of 22 sharks (139 – 202 cm TL) were equipped with coded acoustic transmitters and passively monitored using moored acoustic receivers for a period of 20 month from March 2009 to October 2010. The use of passive acoustic telemetry arrays to study behavioural ecology has increased in popularity in recent years and been successfully applied to study a host of teleost and elasmobranch species in a diversity of habitats, ranging from sheltered estuaries to the offshore pelagic environment. However, the practicalities of designing an effective network of receivers to optimally monitor animal movements can be challenging. In this study the receiver array was optimised through a series of incremental steps to achieve an efficient design that allowed for the specific objectives to be addressed. The specific objectives of this study were to i) gain an understanding of the long term space use patterns and site fidelity of sub-adult N. acutidens within degree of use of the St. Joseph Atoll lagoon and surrounding habitats, and ii) investigate their short term behavioural patterns in response to natural rhythmic cycles. The important role the atoll plays in the sub-adult stage of this species was demonstrated by the very low numbers of detections outside the atoll compared to the very large numbers of detections inside the atoll. Over the course of a year the tagged sharks showed a high degree of site fidelity to the atoll, with 79 – 100% of the individuals detected during each month and 50% being detected on a near daily basis. This result provides testimony of the nursery role of the atoll and importance of these habitats in the early life history for this species. Individual area use was generally found to be restricted to the eastern part of the atoll incorporating a portion of the central deep lagoon and a nearby adjacent area of the sand flats. The movements of sub-adult N. acutidens on and off of the shallow flats surrounding the central lagoon (likely for foraging) were found to be strongly influenced by the tidal height and the diel cycle. Tagged sharks were found to utilise the flats more regularly when the tidal height was greater than 90 cm and particularly more so during the night and early morning than during daylight times. The combined results of this study expose the vulnerability of this species to rapid local depletion. Similarly, the effectiveness of spatial management measures, such as no-take marine protected areas is highlighted as an efficient tool for the future conservation of this species. In the St. Joseph Atoll in particular, the use of a multi-levelled protection approach, where the eastern portion on the atoll is completely restricted while the remaining area is utilized for non-consumptive tourism activities, could be highly effective. Future research should investigate changes in area use throughout the ontogeny of this species as well improve the understanding of the breeding site fidelity and population size of reproductive females using the St. Joseph Atoll.
- Full Text:
- Date Issued: 2012
An investigation into factors impacting on exports from South Africa to the Southern African Development Community (SADC)
- Authors: Fish, Colin
- Date: 2012
- Subjects: Exports -- South Africa , Exports -- Africa, Southern , Manufactures -- South Africa , Manufactures -- Africa, Southern , Economic assistance
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8800 , http://hdl.handle.net/10948/d1016494
- Description: Globalisation has changed the world economy. Manufacturers face vigorous competition in both local and export markets and need to have a genuine competitive advantage in order to prosper and grow. South Africa is still predominantly a resource based exporter with high aspirations of developing trade in value-added products. The government has recognised the importance of developing national manufacturing capacity as a means of increasing employment and reducing poverty. To this end the government provides substantial support to both the manufacturing and exporting sectors. The government also negotiated the Southern African Development Community (SADC) agreement which leverages some powerful competitive advantages for South African manufacturers exporting into the region. However, since ratification of the SADC agreement in 2008 there has been no perceptible increase in export activity to the region when compared to other markets. This research study was conducted to determine why this is the case and what factors are influencing the process. A literature review was undertaken encapsulating three principal themes; namely, export barriers, the role of the South African government in the export process, and the SADC agreement. Based on the findings of the literature review a research questionnaire was constructed and subsequently completed by a cross section of manufacturers in the Eastern Cape. It was found that export barriers do not pose a major obstacle to trade into the SADC region. The role the government plays was less conclusive with some successes noted, but on the whole the impact is not meaningfully positive. On the other hand the SADC agreement and the dynamics prevailing in the free trade area do have a positive impact on exports to the region. The level of awareness with regard to the government support initiatives was disappointingly low. The government offers a number of helpful support initiatives which are unknown to more than half the response group. The awareness level of the dynamics prevailing in the SADC region are an improvement but are still surprisingly low. South African manufacturers enjoy significant competitive advantages within the region that are going largely unnoticed. It is recommended, inter alia, that the government consolidates some of its support initiatives, as well as provides a dedicated SADC support desk. Management should adopt an export culture and re-evaluate the opportunity to trade with the SADC region.
- Full Text:
- Date Issued: 2012
- Authors: Fish, Colin
- Date: 2012
- Subjects: Exports -- South Africa , Exports -- Africa, Southern , Manufactures -- South Africa , Manufactures -- Africa, Southern , Economic assistance
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8800 , http://hdl.handle.net/10948/d1016494
- Description: Globalisation has changed the world economy. Manufacturers face vigorous competition in both local and export markets and need to have a genuine competitive advantage in order to prosper and grow. South Africa is still predominantly a resource based exporter with high aspirations of developing trade in value-added products. The government has recognised the importance of developing national manufacturing capacity as a means of increasing employment and reducing poverty. To this end the government provides substantial support to both the manufacturing and exporting sectors. The government also negotiated the Southern African Development Community (SADC) agreement which leverages some powerful competitive advantages for South African manufacturers exporting into the region. However, since ratification of the SADC agreement in 2008 there has been no perceptible increase in export activity to the region when compared to other markets. This research study was conducted to determine why this is the case and what factors are influencing the process. A literature review was undertaken encapsulating three principal themes; namely, export barriers, the role of the South African government in the export process, and the SADC agreement. Based on the findings of the literature review a research questionnaire was constructed and subsequently completed by a cross section of manufacturers in the Eastern Cape. It was found that export barriers do not pose a major obstacle to trade into the SADC region. The role the government plays was less conclusive with some successes noted, but on the whole the impact is not meaningfully positive. On the other hand the SADC agreement and the dynamics prevailing in the free trade area do have a positive impact on exports to the region. The level of awareness with regard to the government support initiatives was disappointingly low. The government offers a number of helpful support initiatives which are unknown to more than half the response group. The awareness level of the dynamics prevailing in the SADC region are an improvement but are still surprisingly low. South African manufacturers enjoy significant competitive advantages within the region that are going largely unnoticed. It is recommended, inter alia, that the government consolidates some of its support initiatives, as well as provides a dedicated SADC support desk. Management should adopt an export culture and re-evaluate the opportunity to trade with the SADC region.
- Full Text:
- Date Issued: 2012
The diet of black-backed jackal (Canis Mesomelas) on two contrasting land-use types in the Eastern Cape Province, South Africa and the validation of a new analytical method of mammalian hair identification
- Authors: Forbes, Ross William
- Date: 2012
- Subjects: Black-backed jackal -- South Africa -- Eastern Cape , Jackals -- South Africa -- Eastern Cape , Jackals -- Food , Mammals -- Identification
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5661 , http://hdl.handle.net/10962/d1005345 , Black-backed jackal -- South Africa -- Eastern Cape , Jackals -- South Africa -- Eastern Cape , Jackals -- Food , Mammals -- Identification
- Description: Diet assessments are critical for understanding the foraging behaviour, habitat use and trophic separation of mammalian predators and are vital for gaining insight into how predators influence prey populations. The aim of this research was to qualitatively describe the diet of black-backed jackals (Canis mesomelas, Schreber 1775) using scat analysis on two contrasting land-use types in the Eastern Cape Province, South Africa. Scats were collected on a monthly basis from November 2009 to October 2010 from two game reserves (Great Fish River Reserve and Shamwari Private Game Reserve) and two neighbouring livestock farms. The relative frequency of occurrence of mammal hair (33 – 47 %) and vegetation (32 – 45%)dominated jackal diet throughout the year across the four study sites. Other important prey items included invertebrates (8 – 21 %) and fruit and seeds (3 – 11 %). Birds and reptiles constituted ≤ 2 % of the diet and were only recorded on the game reserves. Significant seasonal dietary shifts were observed on the game reserves but not on the farms. Fruit and seeds were significantly more frequent in the diet during autumn at Great Fish River Reserve and invertebrates were significantly less common in the diet during winter on both reserves. In addition, vegetation was significantly more common in the diet during winter at Shamwari Private Game Reserve. The significant temporal variation of certain prey items is testament to black-backed jackals being opportunistic generalists, foraging on those food items which are most abundant, accessible and energetically beneficial. Land-use type also influenced the diet of black-backed jackals with significantly more invertebrates and, fruit and seeds being recorded on the game reserves than on the farms. By contrast, significantly more mammal hair and vegetation were present in the diet on the farms compared with the game reserves. The mammalian component of the diet was dominated by ruminants and rodents on the game reserves and by ruminants and livestock on the farms. The presence of livestock in the diet of black-backed jackals on the farms highlights their potential impact on the livestock industry in the region and may assist farmers in determining which predators are responsible for stock loss. Previous approaches for identifying mammalian hairs from predator scats have utilised dichotomous keys and reference collections but these are often time-consuming and require a trained individual to carry out the identification. Thus, I also tested the efficacy of an automated pattern recognition programme (HairSnap) for identifying mammalian hairs from black-backed jackal scats. The overall accuracy of the programme was 38 % with black-backed jackal, Greater kudu (Tragelaphus strepsiceros) and striped polecat (Ictonyx striatus) hairs being accurately identified more often (70 – 80 %) than any other species tested. It is likely that both the size and species composition of the sample resulted in the poor accuracy of the programme. However, with the implementation of several improvement measures (e.g. adjustment of the algorithm) the programme may offer a superior, bias-free method of mammalian hair identification. The dietary information gathered here furthers our knowledge of the biology of the blackbacked jackals, especially in the locally important thicket biome. Moreover, understanding their foraging habits allows for more effective management of the species on both game reserves and farmlands. I recommend that future research should focus on quantitatively assessing the diet of black-backed jackals in the Eastern Cape Province and elsewhere. This will compliment the dietary description provided in this study and may offer a biologically more meaningful indication of the relative importance of the prey items.
- Full Text:
- Date Issued: 2012
- Authors: Forbes, Ross William
- Date: 2012
- Subjects: Black-backed jackal -- South Africa -- Eastern Cape , Jackals -- South Africa -- Eastern Cape , Jackals -- Food , Mammals -- Identification
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5661 , http://hdl.handle.net/10962/d1005345 , Black-backed jackal -- South Africa -- Eastern Cape , Jackals -- South Africa -- Eastern Cape , Jackals -- Food , Mammals -- Identification
- Description: Diet assessments are critical for understanding the foraging behaviour, habitat use and trophic separation of mammalian predators and are vital for gaining insight into how predators influence prey populations. The aim of this research was to qualitatively describe the diet of black-backed jackals (Canis mesomelas, Schreber 1775) using scat analysis on two contrasting land-use types in the Eastern Cape Province, South Africa. Scats were collected on a monthly basis from November 2009 to October 2010 from two game reserves (Great Fish River Reserve and Shamwari Private Game Reserve) and two neighbouring livestock farms. The relative frequency of occurrence of mammal hair (33 – 47 %) and vegetation (32 – 45%)dominated jackal diet throughout the year across the four study sites. Other important prey items included invertebrates (8 – 21 %) and fruit and seeds (3 – 11 %). Birds and reptiles constituted ≤ 2 % of the diet and were only recorded on the game reserves. Significant seasonal dietary shifts were observed on the game reserves but not on the farms. Fruit and seeds were significantly more frequent in the diet during autumn at Great Fish River Reserve and invertebrates were significantly less common in the diet during winter on both reserves. In addition, vegetation was significantly more common in the diet during winter at Shamwari Private Game Reserve. The significant temporal variation of certain prey items is testament to black-backed jackals being opportunistic generalists, foraging on those food items which are most abundant, accessible and energetically beneficial. Land-use type also influenced the diet of black-backed jackals with significantly more invertebrates and, fruit and seeds being recorded on the game reserves than on the farms. By contrast, significantly more mammal hair and vegetation were present in the diet on the farms compared with the game reserves. The mammalian component of the diet was dominated by ruminants and rodents on the game reserves and by ruminants and livestock on the farms. The presence of livestock in the diet of black-backed jackals on the farms highlights their potential impact on the livestock industry in the region and may assist farmers in determining which predators are responsible for stock loss. Previous approaches for identifying mammalian hairs from predator scats have utilised dichotomous keys and reference collections but these are often time-consuming and require a trained individual to carry out the identification. Thus, I also tested the efficacy of an automated pattern recognition programme (HairSnap) for identifying mammalian hairs from black-backed jackal scats. The overall accuracy of the programme was 38 % with black-backed jackal, Greater kudu (Tragelaphus strepsiceros) and striped polecat (Ictonyx striatus) hairs being accurately identified more often (70 – 80 %) than any other species tested. It is likely that both the size and species composition of the sample resulted in the poor accuracy of the programme. However, with the implementation of several improvement measures (e.g. adjustment of the algorithm) the programme may offer a superior, bias-free method of mammalian hair identification. The dietary information gathered here furthers our knowledge of the biology of the blackbacked jackals, especially in the locally important thicket biome. Moreover, understanding their foraging habits allows for more effective management of the species on both game reserves and farmlands. I recommend that future research should focus on quantitatively assessing the diet of black-backed jackals in the Eastern Cape Province and elsewhere. This will compliment the dietary description provided in this study and may offer a biologically more meaningful indication of the relative importance of the prey items.
- Full Text:
- Date Issued: 2012
A spatial and temporal analysis of the changes in alien macrophyte communities and a baseline assessment of the macroinvertebrates associated with Eurasian watermilfoil, Myriophyllum spicatum L. (Haloragaceae) in the Vaal River
- Authors: Fordham, Colin Justin
- Date: 2012
- Subjects: Water hyacinth -- Control -- South Africa , Aquatic weeds -- Control -- South Africa , Eurasian watermilfoil -- South Africa , Water quality management -- South Africa , Freshwater invertebrates -- Ecology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5767 , http://hdl.handle.net/10962/d1005455 , Water hyacinth -- Control -- South Africa , Aquatic weeds -- Control -- South Africa , Eurasian watermilfoil -- South Africa , Water quality management -- South Africa , Freshwater invertebrates -- Ecology -- South Africa
- Description: The majority of South Africa’s fresh water (lotic and lentic), is eutrophic and this has resulted in water hyacinth, Eichhornia crassipes (C.Mart.) Solms. (Pontederiaceae) becoming South Africa’s most damaging aquatic macrophyte. Recently however, concerns have also been voiced over the presence of highly invasive submerged macrophyte species, such as Eurasian water-milfoil, Myriophyllum spicatum L. (Haloragaceae) in the Vaal River. Interaction studies between floating and submerged macrophytes have shown that floating macrophyte dominance restricts light penetration into the water column shading out submerged macrophytes while submerged macrophyte dominance reduces nutrient availability in the water column limiting floating macrophyte growth. This cycle ensures that these species cannot coexist in the same habitat for extended periods of time. The aims of this thesis were to: 1. Investigate changes in the historical and current macrophyte dominance in the Vaal River 2. Determine whether these changes could be attributed to stochastic events, such as floods and herbicide control measures. 3. The physio-chemical conditions of the water column, and whether pressure from herbivory by macroinvertebrates had possibly influenced Eurasian water-milfoil’s ability to dominate. Spatial and temporal analysis of satellite imagery revealed that water hyacinth and submerged macrophyte species dominated different regions of the study area over different periods of time from 2006 to 2010. This was significantly correlated with nitrate concentrations of the water column. One of the lower Vaal River Water Management Areas (WMA) had changed from a water hyacinth dominated state in 2006 to an alternative submerged macrophyte dominated stable state in 2008. It was concluded that this change could be attributed to: a stochastic flooding event in 2006; perturbation from integrated control measures implemented against water hyacinth; and low nitrate concentrations of the WMA. The lack of any substantial macroinvertebrate herbivory pressure or control measures implemented against Eurasian water-milfoil, compared to similar surveys conducted in the U.S.A. and its native range in Eurasia was shown to contribute to its dominance. Future successful integrated control programmes, including biological control against Eurasian water-milfoil, could provide the perturbation required to restore the ecosystem. However, without the reduction in nitrate concentration levels, water hyacinth will remain the dominant stable state of the rest of the Vaal River.
- Full Text:
- Date Issued: 2012
- Authors: Fordham, Colin Justin
- Date: 2012
- Subjects: Water hyacinth -- Control -- South Africa , Aquatic weeds -- Control -- South Africa , Eurasian watermilfoil -- South Africa , Water quality management -- South Africa , Freshwater invertebrates -- Ecology -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5767 , http://hdl.handle.net/10962/d1005455 , Water hyacinth -- Control -- South Africa , Aquatic weeds -- Control -- South Africa , Eurasian watermilfoil -- South Africa , Water quality management -- South Africa , Freshwater invertebrates -- Ecology -- South Africa
- Description: The majority of South Africa’s fresh water (lotic and lentic), is eutrophic and this has resulted in water hyacinth, Eichhornia crassipes (C.Mart.) Solms. (Pontederiaceae) becoming South Africa’s most damaging aquatic macrophyte. Recently however, concerns have also been voiced over the presence of highly invasive submerged macrophyte species, such as Eurasian water-milfoil, Myriophyllum spicatum L. (Haloragaceae) in the Vaal River. Interaction studies between floating and submerged macrophytes have shown that floating macrophyte dominance restricts light penetration into the water column shading out submerged macrophytes while submerged macrophyte dominance reduces nutrient availability in the water column limiting floating macrophyte growth. This cycle ensures that these species cannot coexist in the same habitat for extended periods of time. The aims of this thesis were to: 1. Investigate changes in the historical and current macrophyte dominance in the Vaal River 2. Determine whether these changes could be attributed to stochastic events, such as floods and herbicide control measures. 3. The physio-chemical conditions of the water column, and whether pressure from herbivory by macroinvertebrates had possibly influenced Eurasian water-milfoil’s ability to dominate. Spatial and temporal analysis of satellite imagery revealed that water hyacinth and submerged macrophyte species dominated different regions of the study area over different periods of time from 2006 to 2010. This was significantly correlated with nitrate concentrations of the water column. One of the lower Vaal River Water Management Areas (WMA) had changed from a water hyacinth dominated state in 2006 to an alternative submerged macrophyte dominated stable state in 2008. It was concluded that this change could be attributed to: a stochastic flooding event in 2006; perturbation from integrated control measures implemented against water hyacinth; and low nitrate concentrations of the WMA. The lack of any substantial macroinvertebrate herbivory pressure or control measures implemented against Eurasian water-milfoil, compared to similar surveys conducted in the U.S.A. and its native range in Eurasia was shown to contribute to its dominance. Future successful integrated control programmes, including biological control against Eurasian water-milfoil, could provide the perturbation required to restore the ecosystem. However, without the reduction in nitrate concentration levels, water hyacinth will remain the dominant stable state of the rest of the Vaal River.
- Full Text:
- Date Issued: 2012
Photophysicochemical studies of phenylthio phthalocyanines interaction with gold nanoparticles and applications in dye sensitised solar cells and optical limiting
- Authors: Forteath, Shaun
- Date: 2012
- Subjects: Phthalocyanines , Nanoparticles , Photochemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4334 , http://hdl.handle.net/10962/d1004995 , Phthalocyanines , Nanoparticles , Photochemistry
- Description: The syntheses, spectroscopic characterisation, photophysical and photochemical studies have been conducted for a variety of phenylthio substituted phthalocyanines (Pcs). Comparisons have been made taking into consideration the influence of the central metal ion, solvent properties and substituent type. The optical limiting properties were also determined for all the Pcs synthesised. A low-symmetry metallophthalocyanine complex was similarly characterised and the photoelectrochemical parameters determined when used as a sensitiser of nanoporous ZnO. The symmetric analogue was conjugated to gold nanoparticles to determine the influence of interactions on its photophysical properties and distinct differences occurred in the absorption and fluorescence spectra suggesting successful formation of conjugates.
- Full Text:
- Date Issued: 2012
- Authors: Forteath, Shaun
- Date: 2012
- Subjects: Phthalocyanines , Nanoparticles , Photochemistry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4334 , http://hdl.handle.net/10962/d1004995 , Phthalocyanines , Nanoparticles , Photochemistry
- Description: The syntheses, spectroscopic characterisation, photophysical and photochemical studies have been conducted for a variety of phenylthio substituted phthalocyanines (Pcs). Comparisons have been made taking into consideration the influence of the central metal ion, solvent properties and substituent type. The optical limiting properties were also determined for all the Pcs synthesised. A low-symmetry metallophthalocyanine complex was similarly characterised and the photoelectrochemical parameters determined when used as a sensitiser of nanoporous ZnO. The symmetric analogue was conjugated to gold nanoparticles to determine the influence of interactions on its photophysical properties and distinct differences occurred in the absorption and fluorescence spectra suggesting successful formation of conjugates.
- Full Text:
- Date Issued: 2012
Guidelines for the adaptation of the TETRA educational programme at Nelson Mandela Metropolitan University to address human behavioural issues
- Authors: Fouche Nico Pieter
- Date: 2012
- Subjects: Nelson Mandela Metropolitan University -- Communication systems , Human behavior
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9801 , http://hdl.handle.net/10948/d1012248 , Nelson Mandela Metropolitan University -- Communication systems , Human behavior
- Description: Information is a vitally important asset to organizations and the information should be protected to sustain the value it provides to the organization. Information is transferred via different mediums in these organizations. An example would be Terrestrial Trunked Radio or TETRA, which is utilized within organizations to provide a technically very secure form of digital radio communication. TETRA is a communications technology that is currently being successfully used throughout the world for secure, reliable and robust critical communication. TETRA is used by Public Safety and Security (PSS) and transportation sectors, amongst others. PSS includes police officers, fire marshals and emergency medical units who require protected and accurate information that could influence decisions that could make difference between life and death. The TETRA educational programme offered by the TETRA Academy at the Nelson Mandela Metropolitan University (NMMU), educates TETRA users in various aspects of the TETRA standard. TETRA is viewed as a technically very secure communication standard, as it utilizes security features such as mutual authentication, air interface encryption, end-to-end encryption, jamming detection and ambience listening, amongst other security techniques to ensure that the information traversing through the network is kept secure. The TETRA educational programme material includes many physical and technical controls to assist TETRA users in protecting information. However, to what extent does the TETRA educational programme address operational controls? Operational controls address what is often referred to as the weakest link in information security – human behavioural issues. Humans can be exploited through human manipulation attacks, which include social engineering and bribery. Therefore, this study argues towards adapting the TETRA educational programme offered at the NMMU to address these human behavioural issues.
- Full Text:
- Date Issued: 2012
- Authors: Fouche Nico Pieter
- Date: 2012
- Subjects: Nelson Mandela Metropolitan University -- Communication systems , Human behavior
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9801 , http://hdl.handle.net/10948/d1012248 , Nelson Mandela Metropolitan University -- Communication systems , Human behavior
- Description: Information is a vitally important asset to organizations and the information should be protected to sustain the value it provides to the organization. Information is transferred via different mediums in these organizations. An example would be Terrestrial Trunked Radio or TETRA, which is utilized within organizations to provide a technically very secure form of digital radio communication. TETRA is a communications technology that is currently being successfully used throughout the world for secure, reliable and robust critical communication. TETRA is used by Public Safety and Security (PSS) and transportation sectors, amongst others. PSS includes police officers, fire marshals and emergency medical units who require protected and accurate information that could influence decisions that could make difference between life and death. The TETRA educational programme offered by the TETRA Academy at the Nelson Mandela Metropolitan University (NMMU), educates TETRA users in various aspects of the TETRA standard. TETRA is viewed as a technically very secure communication standard, as it utilizes security features such as mutual authentication, air interface encryption, end-to-end encryption, jamming detection and ambience listening, amongst other security techniques to ensure that the information traversing through the network is kept secure. The TETRA educational programme material includes many physical and technical controls to assist TETRA users in protecting information. However, to what extent does the TETRA educational programme address operational controls? Operational controls address what is often referred to as the weakest link in information security – human behavioural issues. Humans can be exploited through human manipulation attacks, which include social engineering and bribery. Therefore, this study argues towards adapting the TETRA educational programme offered at the NMMU to address these human behavioural issues.
- Full Text:
- Date Issued: 2012
Electronic communication continuity planning from the perspective of an individual
- Authors: Fouché, Jacques
- Date: 2012
- Subjects: Electronic systems , Internet
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9802 , http://hdl.handle.net/10948/d1012270 , Electronic systems , Internet
- Description: It is beyond doubt that technology has changed the way people in modern society live their daily lives. While a modern society eagerly adopts new technology, the loss of the services provided by these technologies is hardly ever considered. Therefore, this research project will evaluate the importance of communication technology and how critical it is for an individual. Furthermore, this research will provide a framework to improve the availability of current communication technologies from the perspective of the individual.
- Full Text:
- Date Issued: 2012
- Authors: Fouché, Jacques
- Date: 2012
- Subjects: Electronic systems , Internet
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9802 , http://hdl.handle.net/10948/d1012270 , Electronic systems , Internet
- Description: It is beyond doubt that technology has changed the way people in modern society live their daily lives. While a modern society eagerly adopts new technology, the loss of the services provided by these technologies is hardly ever considered. Therefore, this research project will evaluate the importance of communication technology and how critical it is for an individual. Furthermore, this research will provide a framework to improve the availability of current communication technologies from the perspective of the individual.
- Full Text:
- Date Issued: 2012
An investigation into the control of audio streaming across networks having diverse quality of service mechanisms
- Authors: Foulkes, Philip James
- Date: 2012
- Subjects: Streaming audio -- Testing Data transmission systems -- Testing Computer networks -- Management Computer networks -- Evaluation Computer network protocols -- Standards
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4607 , http://hdl.handle.net/10962/d1004865
- Description: The transmission of realtime audio data across digital networks is subject to strict quality of service requirements. These networks need to be able to guarantee network resources (e.g., bandwidth), ensure timely and deterministic data delivery, and provide time synchronisation mechanisms to ensure successful transmission of this data. Two open standards-based networking technologies, namely IEEE 1394 and the recently standardised Ethernet AVB, provide distinct methods for achieving these goals. Audio devices that are compatible with IEEE 1394 networks exist, and audio devices that are compatible with Ethernet AVB networks are starting to come onto the market. There is a need for mechanisms to provide compatibility between the audio devices that reside on these disparate networks such that existing IEEE 1394 audio devices are able to communicate with Ethernet AVB audio devices, and vice versa. The audio devices that reside on these networks may be remotely controlled by a diverse set of incompatible command and control protocols. It is desirable to have a common network-neutral method of control over the various parameters of the devices that reside on these networks. As part of this study, two Ethernet AVB systems were developed. One system acts as an Ethernet AVB audio endpoint device and another system acts as an audio gateway between IEEE 1394 and Ethernet AVB networks. These systems, along with existing IEEE 1394 audio devices, were used to demonstrate the ability to transfer audio data between the networking technologies. Each of the devices is remotely controllable via a network neutral command and control protocol, XFN. The IEEE 1394 and Ethernet AVB devices are used to demonstrate the use of the XFN protocol to allow for network neutral connection management to take place between IEEE 1394 and Ethernet AVB networks. User control over these diverse devices is achieved via the use of a graphical patchbay application, which aims to provide a consistent user interface to a diverse range of devices.
- Full Text:
- Date Issued: 2012
- Authors: Foulkes, Philip James
- Date: 2012
- Subjects: Streaming audio -- Testing Data transmission systems -- Testing Computer networks -- Management Computer networks -- Evaluation Computer network protocols -- Standards
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: vital:4607 , http://hdl.handle.net/10962/d1004865
- Description: The transmission of realtime audio data across digital networks is subject to strict quality of service requirements. These networks need to be able to guarantee network resources (e.g., bandwidth), ensure timely and deterministic data delivery, and provide time synchronisation mechanisms to ensure successful transmission of this data. Two open standards-based networking technologies, namely IEEE 1394 and the recently standardised Ethernet AVB, provide distinct methods for achieving these goals. Audio devices that are compatible with IEEE 1394 networks exist, and audio devices that are compatible with Ethernet AVB networks are starting to come onto the market. There is a need for mechanisms to provide compatibility between the audio devices that reside on these disparate networks such that existing IEEE 1394 audio devices are able to communicate with Ethernet AVB audio devices, and vice versa. The audio devices that reside on these networks may be remotely controlled by a diverse set of incompatible command and control protocols. It is desirable to have a common network-neutral method of control over the various parameters of the devices that reside on these networks. As part of this study, two Ethernet AVB systems were developed. One system acts as an Ethernet AVB audio endpoint device and another system acts as an audio gateway between IEEE 1394 and Ethernet AVB networks. These systems, along with existing IEEE 1394 audio devices, were used to demonstrate the ability to transfer audio data between the networking technologies. Each of the devices is remotely controllable via a network neutral command and control protocol, XFN. The IEEE 1394 and Ethernet AVB devices are used to demonstrate the use of the XFN protocol to allow for network neutral connection management to take place between IEEE 1394 and Ethernet AVB networks. User control over these diverse devices is achieved via the use of a graphical patchbay application, which aims to provide a consistent user interface to a diverse range of devices.
- Full Text:
- Date Issued: 2012
μCloud : a P2P cloud platform for computing service provision
- Authors: Fouodji Tasse, Ghislain
- Date: 2012 , 2012-08-22
- Subjects: Cloud computing , Peer-to-peer architecture (Computer networks) , Computer architecture , Computer service industry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4663 , http://hdl.handle.net/10962/d1006669 , Cloud computing , Peer-to-peer architecture (Computer networks) , Computer architecture , Computer service industry
- Description: The advancements in virtualization technologies have provided a large spectrum of computational approaches. Dedicated computations can be run on private environments (virtual machines), created within the same computer. Through capable APIs, this functionality is leveraged for the service we wish to implement; a computer power service (CPS). We target peer-to-peer systems for this service, to exploit the potential of aggregating computing resources. The concept of a P2P network is mostly known for its expanded usage in distributed networks for sharing resources like content files or real-time data. This study adds computing power to the list of shared resources by describing a suitable service composition. Taking into account the dynamic nature of the platform, this CPS provision is achieved using a self stabilizing clustering algorithm. So, the resulting system of our research is based around a hierarchical P2P architecture and offers end-to-end consideration of resource provisioning and reliability. We named this system μCloud and characterizes it as a self-provisioning cloud service platform. It is designed, implemented and presented in this dissertation. Eventually, we assessed our work by showing that μCloud succeeds in providing user-centric services using a P2P computing unit. With this, we conclude that our system would be highly beneficial in both small and massively deployed environments. , KMBT_223 , Adobe Acrobat 9.51 Paper Capture Plug-in
- Full Text:
- Date Issued: 2012
- Authors: Fouodji Tasse, Ghislain
- Date: 2012 , 2012-08-22
- Subjects: Cloud computing , Peer-to-peer architecture (Computer networks) , Computer architecture , Computer service industry
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4663 , http://hdl.handle.net/10962/d1006669 , Cloud computing , Peer-to-peer architecture (Computer networks) , Computer architecture , Computer service industry
- Description: The advancements in virtualization technologies have provided a large spectrum of computational approaches. Dedicated computations can be run on private environments (virtual machines), created within the same computer. Through capable APIs, this functionality is leveraged for the service we wish to implement; a computer power service (CPS). We target peer-to-peer systems for this service, to exploit the potential of aggregating computing resources. The concept of a P2P network is mostly known for its expanded usage in distributed networks for sharing resources like content files or real-time data. This study adds computing power to the list of shared resources by describing a suitable service composition. Taking into account the dynamic nature of the platform, this CPS provision is achieved using a self stabilizing clustering algorithm. So, the resulting system of our research is based around a hierarchical P2P architecture and offers end-to-end consideration of resource provisioning and reliability. We named this system μCloud and characterizes it as a self-provisioning cloud service platform. It is designed, implemented and presented in this dissertation. Eventually, we assessed our work by showing that μCloud succeeds in providing user-centric services using a P2P computing unit. With this, we conclude that our system would be highly beneficial in both small and massively deployed environments. , KMBT_223 , Adobe Acrobat 9.51 Paper Capture Plug-in
- Full Text:
- Date Issued: 2012
Successful implementation of succession planning: second generation
- Authors: Fox, Roderick Charles
- Date: 2012
- Subjects: Family-owned business enterprises -- Succession , Family corporations -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8771 , http://hdl.handle.net/10948/d1012445 , Family-owned business enterprises -- Succession , Family corporations -- Management
- Description: Family businesses are prevalent in South Africa and throughout the world. Succession is one of the largest challenges facing family businesses. It has been estimated that only one third of family businesses survive to the second generation. This study attempts to determine what the main features are to promote successful family business succession and continuity. The family chosen for this research is the Venter family. The research has scaled the various influencing variables from the literature review into the following focus areas: relationships, conflict, vision, effective succession characteristics and continuity. The findings reflect many instances found in the literature, some are: individuals can manage themselves and have relationships with others; have the ability to resolve conflicts; have mutual support and trust; there is respect between the founder and successor; the business vision is clear; communication is open and clear and decisions are based on expertise and knowledge. Many other aspects are highlighted in the research that follows. In addition, the study attempts to identify the generational effects, the major characteristics of the family owned succession process and the views of the predecessors on the succession process and the post succession period.
- Full Text:
- Date Issued: 2012
- Authors: Fox, Roderick Charles
- Date: 2012
- Subjects: Family-owned business enterprises -- Succession , Family corporations -- Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8771 , http://hdl.handle.net/10948/d1012445 , Family-owned business enterprises -- Succession , Family corporations -- Management
- Description: Family businesses are prevalent in South Africa and throughout the world. Succession is one of the largest challenges facing family businesses. It has been estimated that only one third of family businesses survive to the second generation. This study attempts to determine what the main features are to promote successful family business succession and continuity. The family chosen for this research is the Venter family. The research has scaled the various influencing variables from the literature review into the following focus areas: relationships, conflict, vision, effective succession characteristics and continuity. The findings reflect many instances found in the literature, some are: individuals can manage themselves and have relationships with others; have the ability to resolve conflicts; have mutual support and trust; there is respect between the founder and successor; the business vision is clear; communication is open and clear and decisions are based on expertise and knowledge. Many other aspects are highlighted in the research that follows. In addition, the study attempts to identify the generational effects, the major characteristics of the family owned succession process and the views of the predecessors on the succession process and the post succession period.
- Full Text:
- Date Issued: 2012
An evaluation of public participation on service delivery at Lukhanji Municipality
- Authors: Fuku, Mzwamadoda
- Date: 2012
- Subjects: Local government -- South Africa -- Eastern Cape -- Citizen participation , Municipal services -- South Africa -- Eastern Cape -- Citizen participation.
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8281 , http://hdl.handle.net/10948/d1016495
- Description: After 1994, the democratic South Africa passed a number of legislations in order to address the imbalances of the previous apartheid regime. The new South African government had a special mandate to provide appropriate services to all the citizens of the country. In 1995 the government formulated the White Paper on the Transformation of the Public Service. The aim was to transform the South African public service, which is the indication of the importance of service delivery, as the key machinery of the government to equalize service delivery to all citizens. In 1996, the Constitution of the Republic of South Africa anchored the Bill of Rights as the cornerstone of democracy that enshrines the rights of all people and affirms the democratic values of human dignity, equality and freedom. Chapter ten of the Constitution stipulates the basic values and principles governing public administration. The South African Government has developed a wide range of legislation that ensures that communities are consulted on a continuous basis with regard to how services need to be rendered. Communities have a right to be consulted and to give input into issues affecting them. Public consultation as envisaged in the South African legislation has, however, not yielded the desired results which is evident in the spate of service delivery protests over poor or non-service delivery. Section 152(1) (e) of the constitution stipulates amongst others, promotes involvement of communities and community organisations in the matters of local government. Section 73 of the Municipal Structures Act (no.117 of 1998) also requires municipalities to establish ward committees in a manner that seeks to enhance participatory democracy at the local level. The study therefore is to check that decision-makers at the Chris Hani Municipality understand the consequences of their decisions before they act and people affected get the opportunity to participate in designing their future.
- Full Text:
- Date Issued: 2012
- Authors: Fuku, Mzwamadoda
- Date: 2012
- Subjects: Local government -- South Africa -- Eastern Cape -- Citizen participation , Municipal services -- South Africa -- Eastern Cape -- Citizen participation.
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8281 , http://hdl.handle.net/10948/d1016495
- Description: After 1994, the democratic South Africa passed a number of legislations in order to address the imbalances of the previous apartheid regime. The new South African government had a special mandate to provide appropriate services to all the citizens of the country. In 1995 the government formulated the White Paper on the Transformation of the Public Service. The aim was to transform the South African public service, which is the indication of the importance of service delivery, as the key machinery of the government to equalize service delivery to all citizens. In 1996, the Constitution of the Republic of South Africa anchored the Bill of Rights as the cornerstone of democracy that enshrines the rights of all people and affirms the democratic values of human dignity, equality and freedom. Chapter ten of the Constitution stipulates the basic values and principles governing public administration. The South African Government has developed a wide range of legislation that ensures that communities are consulted on a continuous basis with regard to how services need to be rendered. Communities have a right to be consulted and to give input into issues affecting them. Public consultation as envisaged in the South African legislation has, however, not yielded the desired results which is evident in the spate of service delivery protests over poor or non-service delivery. Section 152(1) (e) of the constitution stipulates amongst others, promotes involvement of communities and community organisations in the matters of local government. Section 73 of the Municipal Structures Act (no.117 of 1998) also requires municipalities to establish ward committees in a manner that seeks to enhance participatory democracy at the local level. The study therefore is to check that decision-makers at the Chris Hani Municipality understand the consequences of their decisions before they act and people affected get the opportunity to participate in designing their future.
- Full Text:
- Date Issued: 2012
Treatment of Parkinson's disease in South Africa and investigation of risk factors causing dyskinesias
- Authors: Gaida, Razia
- Date: 2012
- Subjects: Movement disorders , Parkinson's disease , Drugs
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: vital:10159 , http://hdl.handle.net/10948/d1012466 , Movement disorders , Parkinson's disease , Drugs
- Description: Background: Levodopa is still thought of as the 'gold standard' symptomatic treatment for Parkinson’s disease. However, after four to five years of treatment, levodopa efficacy tends to decline even if there was a good initial therapeutic response. The ideal treatment of Parkinson’s disease is a much debated issue with a range of guidelines available. Objectives: This study was undertaken to analyse medication use and prescribing patterns as well as to determine the risk factors involved in causing dyskinesias in Parkinson’s sufferers. Methods: The study consisted of two parts, namely a drug utilisation review (DUR) and a questionnaire survey. There were 25 523 antiparkinsonian records consisting of 5 168 patients for the year 2010. The questionnaires were verbally administered to patients diagnosed with Parkinson’s disease. A total of 43 patients were interviewed. Results: The average age of the population was 70.74±10.37 years, with the oldest patient being 100 years. Females constituted 59.17percent (5 168: n = 3 058) of the total number of patients. The most common antiparkinsonian products dispensed were combination drugs containing levodopa with a decarboxylase inhibitor and some with a COMT-inhibitor as well (46.5percent; n = 11 875). Males represented 53.49percent (43: n = 23) of the patients included in the questionnaire survey. A review of the medical records showed that patients with dyskinesias were diagnosed with Parkinson’s disease at a younger age and had experienced longer disease duration. Conclusion: Parkinson’s disease is an under-recognised condition in South Africa. Treatment needs to be individualised and based on evidence-based guidelines. Further studies in South Africa, as well as SSA (sub-Saharan Africa), need to be conducted on both the prevalence as well as the treatment of Parkinson’s disease.
- Full Text:
- Date Issued: 2012
- Authors: Gaida, Razia
- Date: 2012
- Subjects: Movement disorders , Parkinson's disease , Drugs
- Language: English
- Type: Thesis , Masters , MPharm
- Identifier: vital:10159 , http://hdl.handle.net/10948/d1012466 , Movement disorders , Parkinson's disease , Drugs
- Description: Background: Levodopa is still thought of as the 'gold standard' symptomatic treatment for Parkinson’s disease. However, after four to five years of treatment, levodopa efficacy tends to decline even if there was a good initial therapeutic response. The ideal treatment of Parkinson’s disease is a much debated issue with a range of guidelines available. Objectives: This study was undertaken to analyse medication use and prescribing patterns as well as to determine the risk factors involved in causing dyskinesias in Parkinson’s sufferers. Methods: The study consisted of two parts, namely a drug utilisation review (DUR) and a questionnaire survey. There were 25 523 antiparkinsonian records consisting of 5 168 patients for the year 2010. The questionnaires were verbally administered to patients diagnosed with Parkinson’s disease. A total of 43 patients were interviewed. Results: The average age of the population was 70.74±10.37 years, with the oldest patient being 100 years. Females constituted 59.17percent (5 168: n = 3 058) of the total number of patients. The most common antiparkinsonian products dispensed were combination drugs containing levodopa with a decarboxylase inhibitor and some with a COMT-inhibitor as well (46.5percent; n = 11 875). Males represented 53.49percent (43: n = 23) of the patients included in the questionnaire survey. A review of the medical records showed that patients with dyskinesias were diagnosed with Parkinson’s disease at a younger age and had experienced longer disease duration. Conclusion: Parkinson’s disease is an under-recognised condition in South Africa. Treatment needs to be individualised and based on evidence-based guidelines. Further studies in South Africa, as well as SSA (sub-Saharan Africa), need to be conducted on both the prevalence as well as the treatment of Parkinson’s disease.
- Full Text:
- Date Issued: 2012
Foundation phase teachers' continuous professional development
- Authors: Gallant, Reinhold Justin
- Date: 2012
- Subjects: Foundation phase , Education, Higher , Identity (Philosophical concept) , Career development , Teachers
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9448 , http://hdl.handle.net/10948/d1007898 , Foundation phase , Education, Higher , Identity (Philosophical concept) , Career development , Teachers
- Description: This research was based on the question of how Foundation Phase teachers perceived and experienced their professional development. This study was done at a school in the Northern Areas of Nelson Mandela Bay, South Africa. The school is situated in a developing community that has a low socio-economic status characterised by infrastructural challenges. The school is newly established and started the year 2012 with mostly newly qualified teachers. In this study, the researcher wanted to know how the participants’ perceptions and experiences as teachers impact on their professional development. The review of relevant literature provided a conceptual framework for the study. This study explored the fact that a social constructivist theory is relevant for the professional development of foundation phase teachers. This theory is based on the fact that teachers construct their own knowledge and that more emphasis should be placed on theory within teachers’ practice. A qualitative research approach was suitable for this study. The data for the study was obtained by using photovoice and focus group interviews. The most important theme that emerged from the data collection was that the physical environment of the school and the surrounding area played a major role in how the teachers experienced their development. Other themes that emerged from the study were the need for educational resources, teacher collaboration and leadership. The findings show that more emphasis should be placed on the professional development of Foundation Phase teachers. Schools in poverty stricken areas of South Africa have an impact on how teachers experience their professional development. It has become clear that places of higher education need to consider the contexts in which schools are situated, especially in poverty stricken areas. Foundation Phase teachers are a vital part of education and as such the training of teachers in this phase should develop around whole-person learning within a life-long learning framework.
- Full Text:
- Date Issued: 2012
- Authors: Gallant, Reinhold Justin
- Date: 2012
- Subjects: Foundation phase , Education, Higher , Identity (Philosophical concept) , Career development , Teachers
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:9448 , http://hdl.handle.net/10948/d1007898 , Foundation phase , Education, Higher , Identity (Philosophical concept) , Career development , Teachers
- Description: This research was based on the question of how Foundation Phase teachers perceived and experienced their professional development. This study was done at a school in the Northern Areas of Nelson Mandela Bay, South Africa. The school is situated in a developing community that has a low socio-economic status characterised by infrastructural challenges. The school is newly established and started the year 2012 with mostly newly qualified teachers. In this study, the researcher wanted to know how the participants’ perceptions and experiences as teachers impact on their professional development. The review of relevant literature provided a conceptual framework for the study. This study explored the fact that a social constructivist theory is relevant for the professional development of foundation phase teachers. This theory is based on the fact that teachers construct their own knowledge and that more emphasis should be placed on theory within teachers’ practice. A qualitative research approach was suitable for this study. The data for the study was obtained by using photovoice and focus group interviews. The most important theme that emerged from the data collection was that the physical environment of the school and the surrounding area played a major role in how the teachers experienced their development. Other themes that emerged from the study were the need for educational resources, teacher collaboration and leadership. The findings show that more emphasis should be placed on the professional development of Foundation Phase teachers. Schools in poverty stricken areas of South Africa have an impact on how teachers experience their professional development. It has become clear that places of higher education need to consider the contexts in which schools are situated, especially in poverty stricken areas. Foundation Phase teachers are a vital part of education and as such the training of teachers in this phase should develop around whole-person learning within a life-long learning framework.
- Full Text:
- Date Issued: 2012
A case study describing factors perceived to be impacting staff satisfaction amongst health care professionals at the East London Hospital complex
- Authors: Galo, Luntu
- Date: 2012
- Subjects: Medical personnel -- Job satisfaction -- South Africa -- Case studies Medical personnel -- Job stress -- South Africa -- Case studies Medical personnel -- South Africa -- Attitudes -- Case studies Hospitals -- South Africa -- Administration Health services administration -- South Africa Health planning -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:784 , http://hdl.handle.net/10962/d1003905
- Description: This thesis was born from a concern the researcher had with regard to negative reports in the media emanating from 4 babies that died at Cecilia Makiwane Hospital Peadiatric ICU unit due to power supply failure. The most significant of these negative reports was in 2007 when the Daily Dispatch ran a series of articles regarding what they termed avoidable deaths over the last 14 years. The ease with which staff communicated with the media together with the high absenteeism rate and high turnover was a cause for concern. When the researcher analysed the history of the problem, it immerged from the respondents’ responses that the rationalistion process undertaken by the Eastern Cape Department of Health (ECDoH) was a significant root cause to the problem. The literature review focused on three areas viz.: Organisational Culture, Organisational Change, Foundations of Satisfaction. This focus was used to confine the problem to a manageable project but secondly each of the aspects are interwoven. Routledge (2010) notes that culture is the reflection of the values advocated by a founder or leader by way of his/her day to day actions. This is done by the leader creating a perception or viewpoint that assists the employees to achieve the organisation’s mission, vision and goals. In any organisation change is a constant and it needs to be effectively managed. With government institutions like the East London Hospital Complex (ELHC) directives come from the top and are implemented by an unprepared and untrained leadership and management cadre and clear communication of vision and objective of the desired outcomes never happens. The aim of the research was to: describe the existing Organisational Culture present at ELHC (Perform an organisational diagnosis); describe the impact of change (rationalisation) and to analyze why there was such a high staff turnover. It is clear from the results of the survey conducted that significant dissatisfaction prevailed relating to how the institution was managed. Dissatisfaction amongst the health professionals was general but also specific to the following: leadership and management issues, fairness, remuneration and lack of resources. The recommendations therefore focused on developing management and leadership within the proposal of Dubrin’s model (2001).
- Full Text:
- Date Issued: 2012
- Authors: Galo, Luntu
- Date: 2012
- Subjects: Medical personnel -- Job satisfaction -- South Africa -- Case studies Medical personnel -- Job stress -- South Africa -- Case studies Medical personnel -- South Africa -- Attitudes -- Case studies Hospitals -- South Africa -- Administration Health services administration -- South Africa Health planning -- South Africa
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:784 , http://hdl.handle.net/10962/d1003905
- Description: This thesis was born from a concern the researcher had with regard to negative reports in the media emanating from 4 babies that died at Cecilia Makiwane Hospital Peadiatric ICU unit due to power supply failure. The most significant of these negative reports was in 2007 when the Daily Dispatch ran a series of articles regarding what they termed avoidable deaths over the last 14 years. The ease with which staff communicated with the media together with the high absenteeism rate and high turnover was a cause for concern. When the researcher analysed the history of the problem, it immerged from the respondents’ responses that the rationalistion process undertaken by the Eastern Cape Department of Health (ECDoH) was a significant root cause to the problem. The literature review focused on three areas viz.: Organisational Culture, Organisational Change, Foundations of Satisfaction. This focus was used to confine the problem to a manageable project but secondly each of the aspects are interwoven. Routledge (2010) notes that culture is the reflection of the values advocated by a founder or leader by way of his/her day to day actions. This is done by the leader creating a perception or viewpoint that assists the employees to achieve the organisation’s mission, vision and goals. In any organisation change is a constant and it needs to be effectively managed. With government institutions like the East London Hospital Complex (ELHC) directives come from the top and are implemented by an unprepared and untrained leadership and management cadre and clear communication of vision and objective of the desired outcomes never happens. The aim of the research was to: describe the existing Organisational Culture present at ELHC (Perform an organisational diagnosis); describe the impact of change (rationalisation) and to analyze why there was such a high staff turnover. It is clear from the results of the survey conducted that significant dissatisfaction prevailed relating to how the institution was managed. Dissatisfaction amongst the health professionals was general but also specific to the following: leadership and management issues, fairness, remuneration and lack of resources. The recommendations therefore focused on developing management and leadership within the proposal of Dubrin’s model (2001).
- Full Text:
- Date Issued: 2012
Freedom of the press, or the infringement of the right to privacy?: media coverage of President Kgalema Motlanthe from October 2008 to April 2009 in three newspapers
- Authors: Gamlashe, Thembinkosi
- Date: 2012
- Subjects: Freedom of the press , Privacy, Right of , Press law , Data protection -- Law and legislation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8402 , http://hdl.handle.net/10948/d1010118 , Freedom of the press , Privacy, Right of , Press law , Data protection -- Law and legislation
- Description: The researcher attempts to assess in which respect the privacy of former President Kgalema Motlanthe may have been invaded during his presidency, in view of journalistic ethics and press codes currently in effect. The study will explore media practices based on media freedom at the time of publication, and assess whether this freedom is understood to suggest the infringement of the right to privacy in the coverage of the private lives of politicians in the media. This study will therefore examine a sample of articles from the Sunday Times, City Press and Mail and Guardian, covering former President Kgalema Motlanthe’s public behaviour that related to his private life, assess which aspects of his demeanour became the subject of media coverage, and correlate such reporting trends with fluctuations in his political career. The researcher will focus on the period when Kgalema Motlanthe was at the helm as the Head of State – from October 2008 to April 2009, and consider particularly the trends in the sampled press reports regarding his private life. The study furthermore examines some of the legislative and normative changes that affected the media in South Africa after democratisation, to correlate the trends observed in the press coverage with legislation. This further serves to identify possible gray areas that arise from reporting on the freedom of the press and may lead to the invasion of privacy.
- Full Text:
- Date Issued: 2012
- Authors: Gamlashe, Thembinkosi
- Date: 2012
- Subjects: Freedom of the press , Privacy, Right of , Press law , Data protection -- Law and legislation
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8402 , http://hdl.handle.net/10948/d1010118 , Freedom of the press , Privacy, Right of , Press law , Data protection -- Law and legislation
- Description: The researcher attempts to assess in which respect the privacy of former President Kgalema Motlanthe may have been invaded during his presidency, in view of journalistic ethics and press codes currently in effect. The study will explore media practices based on media freedom at the time of publication, and assess whether this freedom is understood to suggest the infringement of the right to privacy in the coverage of the private lives of politicians in the media. This study will therefore examine a sample of articles from the Sunday Times, City Press and Mail and Guardian, covering former President Kgalema Motlanthe’s public behaviour that related to his private life, assess which aspects of his demeanour became the subject of media coverage, and correlate such reporting trends with fluctuations in his political career. The researcher will focus on the period when Kgalema Motlanthe was at the helm as the Head of State – from October 2008 to April 2009, and consider particularly the trends in the sampled press reports regarding his private life. The study furthermore examines some of the legislative and normative changes that affected the media in South Africa after democratisation, to correlate the trends observed in the press coverage with legislation. This further serves to identify possible gray areas that arise from reporting on the freedom of the press and may lead to the invasion of privacy.
- Full Text:
- Date Issued: 2012
Research supervision experiences of masters in education students at a South African University
- Authors: Ganqa, Ncumisa Hazel
- Date: 2012
- Subjects: Universities and colleges -- South Africa -- Evaluation , Graduate students -- Research -- South Africa , Education -- South Africa -- Quality control
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16176 , http://hdl.handle.net/10353/473 , Universities and colleges -- South Africa -- Evaluation , Graduate students -- Research -- South Africa , Education -- South Africa -- Quality control
- Description: In recent years, transformation in South African Universities saw an increase in the number of postgraduate students enrolling for Masters’ research programmes as access and educational opportunities have been widened. The purpose of this research was to investigate research supervision experiences of Masters postgraduate students. A qualitative, contextual, descriptive and phenomenological research design was used to explore the experiences of the 2010 MEd cohort at a purposively chosen university. This was a small scale study of six participants in different stages of their research projects sampled purposively. The preferred phenomenological interview method of gathering information from the subjects was in-depth unstructured interviews. This research study revealed that the postgraduate students at the University under investigation still continue to experience the traditional model of a single supervisor supervising a strictly research based work. The most crucial component of research supervision experiences that emerged was the quality of supervision between supervisors and supervisees which revealed power struggles in supervisory relationships. Such relationships emerged as push and pull, fight or flight amongst different individual participants and their supervisors.
- Full Text:
- Date Issued: 2012
- Authors: Ganqa, Ncumisa Hazel
- Date: 2012
- Subjects: Universities and colleges -- South Africa -- Evaluation , Graduate students -- Research -- South Africa , Education -- South Africa -- Quality control
- Language: English
- Type: Thesis , Masters , M Ed
- Identifier: vital:16176 , http://hdl.handle.net/10353/473 , Universities and colleges -- South Africa -- Evaluation , Graduate students -- Research -- South Africa , Education -- South Africa -- Quality control
- Description: In recent years, transformation in South African Universities saw an increase in the number of postgraduate students enrolling for Masters’ research programmes as access and educational opportunities have been widened. The purpose of this research was to investigate research supervision experiences of Masters postgraduate students. A qualitative, contextual, descriptive and phenomenological research design was used to explore the experiences of the 2010 MEd cohort at a purposively chosen university. This was a small scale study of six participants in different stages of their research projects sampled purposively. The preferred phenomenological interview method of gathering information from the subjects was in-depth unstructured interviews. This research study revealed that the postgraduate students at the University under investigation still continue to experience the traditional model of a single supervisor supervising a strictly research based work. The most crucial component of research supervision experiences that emerged was the quality of supervision between supervisors and supervisees which revealed power struggles in supervisory relationships. Such relationships emerged as push and pull, fight or flight amongst different individual participants and their supervisors.
- Full Text:
- Date Issued: 2012
An evaluation of the child support grant as a poverty alleviation strategy : the case of King William's Town Centre
- Authors: Ganto, Cikizwa
- Date: 2012
- Subjects: Child support -- South Africa -- Eastern Cape , Child welfare -- South Africa -- Eastern Cape , Public welfare -- South Africa -- Eastern Cape , Social security -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8282 , http://hdl.handle.net/10948/d1016496
- Description: The main objective of this study was to evaluate the CHILD SUPPORT GRANT as a poverty alleviation strategy as imposed by government in the King William‟s Town Centre. To achieve the objective of the study, a literature review and empirical research were conducted. During the empirical research, interviews were conducted and CSG beneficiaries taken on board as a sample. The impact of the CSG was evaluated to see if these are in line with what the literature reveals. The descriptive method was used to analyze the data and to find responses to the research questions and objectives. The research showed that the determinants are multiple: behavioral, lack of efficiency, and so on. Secondly, it is time for policy makers and others to work with implementers/beneficiaries to understand the implications and context of the CSG in the lives of the people. The critique of the Child Support Grant had not taken on board the viewpoints of caregivers concerning its socio-economic role. The discourse of the Child Support Grant therefore resulted in an over-representation of perceptions that excluded caregivers who collected and used the same grant. The popular approach by scholars to the Child Support Grant was to conclude, based on statistically measurable impacts of the grant, that it was effective in poverty alleviation, without regard to the viewpoint of caregivers. Others regarded its role as disastrous based on observable trends in society, such as increases in teenage fertility, and attributed the same to the provision of the grant, without regard to it as a poverty alleviation strategy.
- Full Text:
- Date Issued: 2012
- Authors: Ganto, Cikizwa
- Date: 2012
- Subjects: Child support -- South Africa -- Eastern Cape , Child welfare -- South Africa -- Eastern Cape , Public welfare -- South Africa -- Eastern Cape , Social security -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8282 , http://hdl.handle.net/10948/d1016496
- Description: The main objective of this study was to evaluate the CHILD SUPPORT GRANT as a poverty alleviation strategy as imposed by government in the King William‟s Town Centre. To achieve the objective of the study, a literature review and empirical research were conducted. During the empirical research, interviews were conducted and CSG beneficiaries taken on board as a sample. The impact of the CSG was evaluated to see if these are in line with what the literature reveals. The descriptive method was used to analyze the data and to find responses to the research questions and objectives. The research showed that the determinants are multiple: behavioral, lack of efficiency, and so on. Secondly, it is time for policy makers and others to work with implementers/beneficiaries to understand the implications and context of the CSG in the lives of the people. The critique of the Child Support Grant had not taken on board the viewpoints of caregivers concerning its socio-economic role. The discourse of the Child Support Grant therefore resulted in an over-representation of perceptions that excluded caregivers who collected and used the same grant. The popular approach by scholars to the Child Support Grant was to conclude, based on statistically measurable impacts of the grant, that it was effective in poverty alleviation, without regard to the viewpoint of caregivers. Others regarded its role as disastrous based on observable trends in society, such as increases in teenage fertility, and attributed the same to the provision of the grant, without regard to it as a poverty alleviation strategy.
- Full Text:
- Date Issued: 2012