Determinants of internet banking adoption by banks in Ghana
- Authors: Bart-Williams, Edem
- Date: 2015
- Subjects: Internet banking -- Ghana , Banks and banking -- Ghana , Banks and banking -- Automation
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/3715 , vital:20457
- Description: Growth in information and communication technology (ICT) is drastically changing the way businesses, especially in the service industries, are conducted. The financial services industry and banking in particular, is not excluded from this technology explosion. Internet banking, even though not new in advanced countries, is a new transaction channel being used by banks in some parts of Africa, especially Ghana, to offer various products and services to their customers. However, this medium has not been fully exploited by these banks as there are many hurdles the banks must triumph over. In deploying this technology and these systems, there are several factors which banks must take into consideration before fully deploying such a system to their customers, hence the motivation for this study. The absence of suitable and sufficient knowledge on this topic also exposes a “rhetoric versus reality” argument of whether the intention to adopt Internet banking is critical to the strategies and ultimate success of banks in Ghana. For banks to stay ahead of competition as well as to attract and maintain their clientele, it is of paramount importance to gather and link the perspectives of both clients and bank managers in order for banks to ensure that they perform according to the needs and expectations of their clients. In order to achieve the intended results, an empirical study was conducted by taking into consideration the viewpoints of both bank clients and bank managers in determining the factors that customers take into consideration before adopting the Internet banking medium. The primary aim of this study was to quantify significant relationships between the selected variables. Therefore the positivism research paradigm was used, while the phenomenological paradigm was employed for the measuring instruments. Because multiple sources of data were used, from the perspectives of banking clients and managers in Ghana, methodological triangulation was adopted for this study. The results of the empirical investigation showed that both groups (clients and managers) considered the variables of market share, technology acceptance, diffusion of innovation, organisational variables, organisational efficiency, and business strategy to have direct influence on the adoption of Internet banking. However, they differed in opinion concerning the degree of influence of these variables. The bank managers’ responses leaned more towards strong agreement with the importance of these variables than did those of the bank clients. Thus, for bank clients to readily adopt the Internet banking medium for their banking transactions, bank managers must take a closer look at these determinant factors described in the study. The study showed that the population group, educational and income levels exerted an influence on the perceptions clients have regarding Internet banking adoption factors. It was found that the higher the education and income levels of the clients, the easier it was for them to adopt Internet banking. Also, the male group dominated the use of the Internet banking. This is supported by the fact that there is a growing middle class in Ghana that falls within this category of banking clients.
- Full Text:
- Date Issued: 2015
- Authors: Bart-Williams, Edem
- Date: 2015
- Subjects: Internet banking -- Ghana , Banks and banking -- Ghana , Banks and banking -- Automation
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/3715 , vital:20457
- Description: Growth in information and communication technology (ICT) is drastically changing the way businesses, especially in the service industries, are conducted. The financial services industry and banking in particular, is not excluded from this technology explosion. Internet banking, even though not new in advanced countries, is a new transaction channel being used by banks in some parts of Africa, especially Ghana, to offer various products and services to their customers. However, this medium has not been fully exploited by these banks as there are many hurdles the banks must triumph over. In deploying this technology and these systems, there are several factors which banks must take into consideration before fully deploying such a system to their customers, hence the motivation for this study. The absence of suitable and sufficient knowledge on this topic also exposes a “rhetoric versus reality” argument of whether the intention to adopt Internet banking is critical to the strategies and ultimate success of banks in Ghana. For banks to stay ahead of competition as well as to attract and maintain their clientele, it is of paramount importance to gather and link the perspectives of both clients and bank managers in order for banks to ensure that they perform according to the needs and expectations of their clients. In order to achieve the intended results, an empirical study was conducted by taking into consideration the viewpoints of both bank clients and bank managers in determining the factors that customers take into consideration before adopting the Internet banking medium. The primary aim of this study was to quantify significant relationships between the selected variables. Therefore the positivism research paradigm was used, while the phenomenological paradigm was employed for the measuring instruments. Because multiple sources of data were used, from the perspectives of banking clients and managers in Ghana, methodological triangulation was adopted for this study. The results of the empirical investigation showed that both groups (clients and managers) considered the variables of market share, technology acceptance, diffusion of innovation, organisational variables, organisational efficiency, and business strategy to have direct influence on the adoption of Internet banking. However, they differed in opinion concerning the degree of influence of these variables. The bank managers’ responses leaned more towards strong agreement with the importance of these variables than did those of the bank clients. Thus, for bank clients to readily adopt the Internet banking medium for their banking transactions, bank managers must take a closer look at these determinant factors described in the study. The study showed that the population group, educational and income levels exerted an influence on the perceptions clients have regarding Internet banking adoption factors. It was found that the higher the education and income levels of the clients, the easier it was for them to adopt Internet banking. Also, the male group dominated the use of the Internet banking. This is supported by the fact that there is a growing middle class in Ghana that falls within this category of banking clients.
- Full Text:
- Date Issued: 2015
Quantification of greenhouse gas fluxes from soil in agricultural fields
- Authors: Nkongolo, Nsalambi Vakanda
- Date: 2010
- Subjects: Greenhouse gases -- Environmental aspects
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10645 , http://hdl.handle.net/10948/1474 , Greenhouse gases -- Environmental aspects
- Description: Field studies were conducted at Lincoln University of Missouri (USA) and Hokkaido University (Japan) to: (i) study the relationships between greenhouse gases emissions and soil properties, (ii) assess the influence of agricultural practices on greenhouse gas fluxes and soil properties and (iii) improve the quantification of greenhouse gases from soil in agricultural fields using geospatial technologies. Results showed that besides soil temperature (T), soil thermal properties such as thermal conductivity (K), resistivity (R) and diffusivity (D) and soil pore spaces indices such as the pore tortuosity factor and the relative gas diffusion coefficient (Ds/Do) are controlling factors for greenhouse gases emissions. Soil thermal properties correlated with greenhouse gases emissions when soil temperature could not. The study has found that predicted Ds/Do and correlate with greenhouse gas fluxes even when the air-filled porosity and the total porosity from which they are predicted did not. We have also showed that Ds/Do and can be predicted quickly from routine measurements of soil water and air and existing diffusivity models found in the literature. Agricultural practices do seriously impact greenhouse gases emissions as showed by the effect of mechanized tillage operations on soil physical properties and greenhouse gas fluxes in a corn and soybean fields. In fact, our results showed that tractor compaction increased soil resistance to penetration, water, bulk density and pore tortuosity while reducing air-filled porosity, total pore space and the soil gas diffusion coefficient. Changes in soil properties resulted in increased CO2, NO and N2O emissions. Finally, our results also confirmed that greenhouse gas fluxes vary tremendously in space and time. As estimates of greenhouse gas emissions are influenced by the data processing approach, differences between the different calculation approaches leads to uncertainty. Thus, techniques for developing better estimates are needed. We have showed that Geographic Information Systems (GIS), Global Positioning System (GPS), computer mapping and geo-statistics are technologies that can be used to better understand systems containing large amounts of spatial and temporal variability. Our GIS-based approach for quantifying CO2, CH4 and N2O fluxes from soil in agricultural fields showed that estimating (extrapolating) total greenhouse gas fluxes using the “standard” approach – multiplying the average flux value by the total field area – results in biased predictions of field total greenhouse gases emissions. In contrast, the GIS-based approach we developed produces an interpolated map portraying the spatial distribution of gas fluxes across the field from point measurements and later process the interpolated map produced to determine flux zones. Furthermore, processing, classification and modeling enables the computation of field total fluxes as the sum of fluxes in different zones, therefore taking into account the spatial variability of greenhouse gas fluxes.
- Full Text:
- Date Issued: 2010
- Authors: Nkongolo, Nsalambi Vakanda
- Date: 2010
- Subjects: Greenhouse gases -- Environmental aspects
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10645 , http://hdl.handle.net/10948/1474 , Greenhouse gases -- Environmental aspects
- Description: Field studies were conducted at Lincoln University of Missouri (USA) and Hokkaido University (Japan) to: (i) study the relationships between greenhouse gases emissions and soil properties, (ii) assess the influence of agricultural practices on greenhouse gas fluxes and soil properties and (iii) improve the quantification of greenhouse gases from soil in agricultural fields using geospatial technologies. Results showed that besides soil temperature (T), soil thermal properties such as thermal conductivity (K), resistivity (R) and diffusivity (D) and soil pore spaces indices such as the pore tortuosity factor and the relative gas diffusion coefficient (Ds/Do) are controlling factors for greenhouse gases emissions. Soil thermal properties correlated with greenhouse gases emissions when soil temperature could not. The study has found that predicted Ds/Do and correlate with greenhouse gas fluxes even when the air-filled porosity and the total porosity from which they are predicted did not. We have also showed that Ds/Do and can be predicted quickly from routine measurements of soil water and air and existing diffusivity models found in the literature. Agricultural practices do seriously impact greenhouse gases emissions as showed by the effect of mechanized tillage operations on soil physical properties and greenhouse gas fluxes in a corn and soybean fields. In fact, our results showed that tractor compaction increased soil resistance to penetration, water, bulk density and pore tortuosity while reducing air-filled porosity, total pore space and the soil gas diffusion coefficient. Changes in soil properties resulted in increased CO2, NO and N2O emissions. Finally, our results also confirmed that greenhouse gas fluxes vary tremendously in space and time. As estimates of greenhouse gas emissions are influenced by the data processing approach, differences between the different calculation approaches leads to uncertainty. Thus, techniques for developing better estimates are needed. We have showed that Geographic Information Systems (GIS), Global Positioning System (GPS), computer mapping and geo-statistics are technologies that can be used to better understand systems containing large amounts of spatial and temporal variability. Our GIS-based approach for quantifying CO2, CH4 and N2O fluxes from soil in agricultural fields showed that estimating (extrapolating) total greenhouse gas fluxes using the “standard” approach – multiplying the average flux value by the total field area – results in biased predictions of field total greenhouse gases emissions. In contrast, the GIS-based approach we developed produces an interpolated map portraying the spatial distribution of gas fluxes across the field from point measurements and later process the interpolated map produced to determine flux zones. Furthermore, processing, classification and modeling enables the computation of field total fluxes as the sum of fluxes in different zones, therefore taking into account the spatial variability of greenhouse gas fluxes.
- Full Text:
- Date Issued: 2010
The influence of genetic relatedness on sociality and demography of female African elephants
- Authors: Munishi, Linus Kasian
- Date: 2011
- Subjects: African elephant , Wildlife conservation , Elephants -- Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10711 , http://hdl.handle.net/10948/d1011612 , African elephant , Wildlife conservation , Elephants -- Africa
- Description: Many elephant populations across Africa were or are being devastated by poaching and habitat loss, making population and range size for the species important issues of conservation concern in elephant ranging areas, including Tarangire National Park (TNP). Poaching and/or overhunting are known to have direct effects on the demography of elephant populations. The current understanding of the indirect effects of poaching on the sociality and demography of elephant populations is relatively poor, both at the group and an individual level. In this thesis the importance of genetic relatedness (as influenced by poaching) on sociality and demography of the female elephants was studied, using a combination of genetic, observation of behaviour and two decades of demography data collected from the northern subpopulation of TNP. I investigated and characterized the relatedness categories within elephant groups. Using a conceptual model for group size analysis in aggregation economies, I hypothesized that elephant populations subject to social disruptions due to poaching would exhibit characteristics of the free entry model, whereas more stable, closed populations would better fit the group-controlled model. I present a rare quantitative analysis of genetic relatedness and group size patterns among groups of adult female elephants in two wild populations: one in Tarangire National Park (TNP), Tanzania, and another in Addo Elephant National Park (AENP), South Africa. I demonstrate that the group size in African elephant populations is governed by genetic relatedness, and that poaching/overhunting has a significant influence upon the apparent group formation and size in elephants. I then focused on the effect of relatedness on agonistic interactions between adult females. I hypothesized that individual-based aggressive interactions among adult female African elephants would vary according to degree of kinship, with closely related dyads showing less aggression towards each other in resource-limited environments, thereby leading to indirect fitness benefits for individuals. As predicted, females did not show agonistic interactions to their close kin most often, and the frequency and intensity of aggressive interactions was inversely related to the degree of relatedness of the interactants. The effect of group relatedness and structure on reproductive success of individual female African elephant in TNP was also investigated. Adult female reproductive success was significantly influenced by within- group relatedness and structure. Higher reproductive success (with higher frequency of calf production and survival and more female calves produced) were more evident in the closely related groups than groups with low relatedness, suggesting that females from genetically disrupted groups are less likely to be reproductive than those in closely related groups. The possibility of negative effects of poaching on the subsequent generation of poached adult females and the alternative of a positive demographic response through reduced density was assessed by analysing the demographic patterns of the first generation (F1) females of prime-aged adult female African elephants in TNP using within- group relatedness and size. I also compared vital rate (age of first birth and interbirth interval) responses of first generation (F1) cows from Tarangire (poached) elephants with other females from poached (Northern Luangwa National Park, Zambia) and unpoached (Amboseli National Park, Kenya and Addo Elephant National Park, South Africa) populations. Group relatedness had no significant effect on sex ratio of the F1 cows‟ calves. There was a significant difference between the mean age of first birth and interbirth interval of F1 cows from the two (poached, Tarangire and unpoached, Amboseli National Park) elephant populations, suggesting that elephant populations reduced by poaching to low levels show an increase vigour through release from density constraints. Based on these results, the broader implications of secondary effects of poaching on elephant populations are critically evaluated. Also the importance of understanding the consequences of these effects is highlighted in light of other elephant conservation and management approaches. This understanding is useful in making conservation and management decisions for elephants and other biodiversity.
- Full Text:
- Date Issued: 2011
- Authors: Munishi, Linus Kasian
- Date: 2011
- Subjects: African elephant , Wildlife conservation , Elephants -- Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10711 , http://hdl.handle.net/10948/d1011612 , African elephant , Wildlife conservation , Elephants -- Africa
- Description: Many elephant populations across Africa were or are being devastated by poaching and habitat loss, making population and range size for the species important issues of conservation concern in elephant ranging areas, including Tarangire National Park (TNP). Poaching and/or overhunting are known to have direct effects on the demography of elephant populations. The current understanding of the indirect effects of poaching on the sociality and demography of elephant populations is relatively poor, both at the group and an individual level. In this thesis the importance of genetic relatedness (as influenced by poaching) on sociality and demography of the female elephants was studied, using a combination of genetic, observation of behaviour and two decades of demography data collected from the northern subpopulation of TNP. I investigated and characterized the relatedness categories within elephant groups. Using a conceptual model for group size analysis in aggregation economies, I hypothesized that elephant populations subject to social disruptions due to poaching would exhibit characteristics of the free entry model, whereas more stable, closed populations would better fit the group-controlled model. I present a rare quantitative analysis of genetic relatedness and group size patterns among groups of adult female elephants in two wild populations: one in Tarangire National Park (TNP), Tanzania, and another in Addo Elephant National Park (AENP), South Africa. I demonstrate that the group size in African elephant populations is governed by genetic relatedness, and that poaching/overhunting has a significant influence upon the apparent group formation and size in elephants. I then focused on the effect of relatedness on agonistic interactions between adult females. I hypothesized that individual-based aggressive interactions among adult female African elephants would vary according to degree of kinship, with closely related dyads showing less aggression towards each other in resource-limited environments, thereby leading to indirect fitness benefits for individuals. As predicted, females did not show agonistic interactions to their close kin most often, and the frequency and intensity of aggressive interactions was inversely related to the degree of relatedness of the interactants. The effect of group relatedness and structure on reproductive success of individual female African elephant in TNP was also investigated. Adult female reproductive success was significantly influenced by within- group relatedness and structure. Higher reproductive success (with higher frequency of calf production and survival and more female calves produced) were more evident in the closely related groups than groups with low relatedness, suggesting that females from genetically disrupted groups are less likely to be reproductive than those in closely related groups. The possibility of negative effects of poaching on the subsequent generation of poached adult females and the alternative of a positive demographic response through reduced density was assessed by analysing the demographic patterns of the first generation (F1) females of prime-aged adult female African elephants in TNP using within- group relatedness and size. I also compared vital rate (age of first birth and interbirth interval) responses of first generation (F1) cows from Tarangire (poached) elephants with other females from poached (Northern Luangwa National Park, Zambia) and unpoached (Amboseli National Park, Kenya and Addo Elephant National Park, South Africa) populations. Group relatedness had no significant effect on sex ratio of the F1 cows‟ calves. There was a significant difference between the mean age of first birth and interbirth interval of F1 cows from the two (poached, Tarangire and unpoached, Amboseli National Park) elephant populations, suggesting that elephant populations reduced by poaching to low levels show an increase vigour through release from density constraints. Based on these results, the broader implications of secondary effects of poaching on elephant populations are critically evaluated. Also the importance of understanding the consequences of these effects is highlighted in light of other elephant conservation and management approaches. This understanding is useful in making conservation and management decisions for elephants and other biodiversity.
- Full Text:
- Date Issued: 2011
Determinants of export performance among small to medium enterprises in Zimbabwe
- Karambakuwa, Tapuwa Roseline
- Authors: Karambakuwa, Tapuwa Roseline
- Date: 2017
- Subjects: Economics -- Zimbabwe Small business -- Zimbabwe -- Management , Shipping -- Economic aspects -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/17647 , vital:28424
- Description: There is consensus that Small to Medium Enterprises (SME) exports play a critical role in the development of economies. It has been widely acknowledged in empirical research done around the world that small businesses make a significant contribution to economic development, employment, competitiveness and the reduction of regional disparities. However, empirical literature gives conflicting evidence on the determinants of export performance among SMEs. The study contributes towards the debate on SME exports by: (i) investigating the variables that determine export performance among SMEs in Zimbabwe (ii) establishing the competi-tiveness of Zimbabwe’s exports and (iii) ascertaining the major constraints faced by SME ex-porters in Zimbabwe The researcher gathered data from 120 SMEs and 10 institutions in Zimbabwe for the period 2009 to 2015. SME samples were chosen from Harare, Mashonaland Central and Mashonaland East provinces while all 10 of the institutions were chosen from Harare province. Convenient non-probability sampling method was used to select SMEs while stratified sampling technique was applied in the selection of institutions. Both qualitative and quantitative research methods were employed. For the quantitative approach, panel data ordinary least squares method was used in the form of the gravity model of trade. Export intensity (used as a measure of exports) was regressed against support institutions, business ownership, research & development, educational years, use of export processing zones, product type, export years, firm size, firm age, gender, distance from trading partner, Gross Domestic Product (GDP) of trading partner, and GDP of Zimbabwe. The random effects estimation method was used, basing on results from the Durbin-Wu-Hausman test. The null hypothesis was based on the premise that the variables under study do not determine export intensity of SMEs in Zimbabwe. Other null hypothesis were that the major constraint faced by SME exporters in Zimbabwe is not access to finance and that Zimbabwe’s exports are not competitive in the mining, agricultural and manufacturing sectors. The revealed comparative advantage index was computed to measure the competitiveness of Zimbabwe’s exports.For the qualitative approach, the study used the triangulation method which involved combining and utilising the questionnaire, interviews and focus group discussions. The results from the study indicated that following variables increased export intensity of Zimbabwean SMEs; business ownership, use of export processing zones, export years, firm size, and GDP of trading partner. The following variables have an inverse relationship with the export intensity of Zimbabwean SMEs: gender, distance from trading partner and research & development. The results also indicated that these further variables do not determine the export intensity of SMEs in Zimbabwe: support institutions, years of education, product type, firm age and GDP of Zimbabwe. The major constraint faced by exporting SMEs in Zimbabwe is limited access to finance. Zimbabwe is competitive in the agricultural and mining sector exports, but not in manufacturing sector exports The policy implication of the findings is that SME support needs to go beyond support institutions when it comes to SME export promotion. Further SMEs in the agriculture and mining sectors need to be promoted for export growth since Zimbabwe is competitive in these sectors. However the manufacturing sector cannot be ignored, since many economies have developed due to exports of manufactured products and a country needs to have balanced export growth in both primary and manufacturing sectors. In order to have motivated, career SME exporters, entrepreneurship education should begin from primary school right up to university so as to improve entrepreneurial aspirations, attitudes and behaviour in the long run.
- Full Text:
- Date Issued: 2017
- Authors: Karambakuwa, Tapuwa Roseline
- Date: 2017
- Subjects: Economics -- Zimbabwe Small business -- Zimbabwe -- Management , Shipping -- Economic aspects -- Zimbabwe
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/17647 , vital:28424
- Description: There is consensus that Small to Medium Enterprises (SME) exports play a critical role in the development of economies. It has been widely acknowledged in empirical research done around the world that small businesses make a significant contribution to economic development, employment, competitiveness and the reduction of regional disparities. However, empirical literature gives conflicting evidence on the determinants of export performance among SMEs. The study contributes towards the debate on SME exports by: (i) investigating the variables that determine export performance among SMEs in Zimbabwe (ii) establishing the competi-tiveness of Zimbabwe’s exports and (iii) ascertaining the major constraints faced by SME ex-porters in Zimbabwe The researcher gathered data from 120 SMEs and 10 institutions in Zimbabwe for the period 2009 to 2015. SME samples were chosen from Harare, Mashonaland Central and Mashonaland East provinces while all 10 of the institutions were chosen from Harare province. Convenient non-probability sampling method was used to select SMEs while stratified sampling technique was applied in the selection of institutions. Both qualitative and quantitative research methods were employed. For the quantitative approach, panel data ordinary least squares method was used in the form of the gravity model of trade. Export intensity (used as a measure of exports) was regressed against support institutions, business ownership, research & development, educational years, use of export processing zones, product type, export years, firm size, firm age, gender, distance from trading partner, Gross Domestic Product (GDP) of trading partner, and GDP of Zimbabwe. The random effects estimation method was used, basing on results from the Durbin-Wu-Hausman test. The null hypothesis was based on the premise that the variables under study do not determine export intensity of SMEs in Zimbabwe. Other null hypothesis were that the major constraint faced by SME exporters in Zimbabwe is not access to finance and that Zimbabwe’s exports are not competitive in the mining, agricultural and manufacturing sectors. The revealed comparative advantage index was computed to measure the competitiveness of Zimbabwe’s exports.For the qualitative approach, the study used the triangulation method which involved combining and utilising the questionnaire, interviews and focus group discussions. The results from the study indicated that following variables increased export intensity of Zimbabwean SMEs; business ownership, use of export processing zones, export years, firm size, and GDP of trading partner. The following variables have an inverse relationship with the export intensity of Zimbabwean SMEs: gender, distance from trading partner and research & development. The results also indicated that these further variables do not determine the export intensity of SMEs in Zimbabwe: support institutions, years of education, product type, firm age and GDP of Zimbabwe. The major constraint faced by exporting SMEs in Zimbabwe is limited access to finance. Zimbabwe is competitive in the agricultural and mining sector exports, but not in manufacturing sector exports The policy implication of the findings is that SME support needs to go beyond support institutions when it comes to SME export promotion. Further SMEs in the agriculture and mining sectors need to be promoted for export growth since Zimbabwe is competitive in these sectors. However the manufacturing sector cannot be ignored, since many economies have developed due to exports of manufactured products and a country needs to have balanced export growth in both primary and manufacturing sectors. In order to have motivated, career SME exporters, entrepreneurship education should begin from primary school right up to university so as to improve entrepreneurial aspirations, attitudes and behaviour in the long run.
- Full Text:
- Date Issued: 2017
The depiction of female characters by male writers in selected isiXhosa drama works
- Authors: Peter, Zola Welcome
- Date: 2010
- Subjects: Xhosa drama -- 20th century -- History and criticism , Women in literature , Feminism and literature , Xhosa drama -- Male authors , Gender identity in literature
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8446 , http://hdl.handle.net/10948/1482 , Xhosa drama -- 20th century -- History and criticism , Women in literature , Feminism and literature , Xhosa drama -- Male authors , Gender identity in literature
- Description: This research expresses female character portrayal in various drama works written by males. Chapter one is a general introduction that gives the key to this study, the motivation that leads to the selection of this topic; a literary review on the portrayal of female characters in literary works written by males; the scope of study, the basic composition of the ensuing chapters and the definitions of terms that are of paramount importance for this research. Various literary theories are used in Chapter two for the analysis of the research texts. These literary theories include womanism, gender and feminism which expose the social effects caused by the negative perception of females in social life and the negative portrayal of female characters in male dramatic writings. Other literary theories include onomastics as a literary theory, which exposes the relationship between the name giver of a person and the power the name gives to its bearer, as well as psychoanalysis as a theory which proved to be unavoidable, since this study analyses the personal behaviour of the individual characters within their literary environment. Chapter three depicts the general victimization of female characters in male drama works and exposes the various effects of the attitudes of male writers towards female characters in terms of gender role. Chapter four shows a general stereotypical portrayal of female characters in male written drama texts. This chapter shows the impact of stereotyping on female characters from drama works that puts them in a vulnerable position, showing that it is risky to become a victim of ill-treatment in their communities and the literary world. Chapter five deals with the psychological literary review of female characters, showing them as being suicidal and murderers who easily take their own lives and those of other people. Chapter six is a general conclusion of the works which includes observer remarks from other literary researchers of the literature.
- Full Text:
- Date Issued: 2010
- Authors: Peter, Zola Welcome
- Date: 2010
- Subjects: Xhosa drama -- 20th century -- History and criticism , Women in literature , Feminism and literature , Xhosa drama -- Male authors , Gender identity in literature
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8446 , http://hdl.handle.net/10948/1482 , Xhosa drama -- 20th century -- History and criticism , Women in literature , Feminism and literature , Xhosa drama -- Male authors , Gender identity in literature
- Description: This research expresses female character portrayal in various drama works written by males. Chapter one is a general introduction that gives the key to this study, the motivation that leads to the selection of this topic; a literary review on the portrayal of female characters in literary works written by males; the scope of study, the basic composition of the ensuing chapters and the definitions of terms that are of paramount importance for this research. Various literary theories are used in Chapter two for the analysis of the research texts. These literary theories include womanism, gender and feminism which expose the social effects caused by the negative perception of females in social life and the negative portrayal of female characters in male dramatic writings. Other literary theories include onomastics as a literary theory, which exposes the relationship between the name giver of a person and the power the name gives to its bearer, as well as psychoanalysis as a theory which proved to be unavoidable, since this study analyses the personal behaviour of the individual characters within their literary environment. Chapter three depicts the general victimization of female characters in male drama works and exposes the various effects of the attitudes of male writers towards female characters in terms of gender role. Chapter four shows a general stereotypical portrayal of female characters in male written drama texts. This chapter shows the impact of stereotyping on female characters from drama works that puts them in a vulnerable position, showing that it is risky to become a victim of ill-treatment in their communities and the literary world. Chapter five deals with the psychological literary review of female characters, showing them as being suicidal and murderers who easily take their own lives and those of other people. Chapter six is a general conclusion of the works which includes observer remarks from other literary researchers of the literature.
- Full Text:
- Date Issued: 2010
Improving the supply of subsidised housing in South Africa
- Authors: Bekker, Jakobus Petrus
- Date: 2017
- Subjects: Housing -- South Africa Housing subsidies -- South Africa , Low-income housing -- South Africa Public housing -- South Africa Housing development -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19553 , vital:28893
- Description: Despite South African citizen’s constitutional right to adequate housing, Government’s housing delivery has been described as a complex, multi-stakeholder, multi-phase problem, exacerbated by political interference and corruption. Housing delivery in South Africa is ideologically and politically designed and executed. However, the government subsidised housing sector remains plagued by: huge and increasing backlogs; corruption; quality concerns, and recipient and stakeholder dissatisfaction. This includes the government subsidised housing construction sector, which faces issues such as: established contractors leaving the sector; late and failed completion; substandard quality; rework; cost overruns; late progress payments; and insolvencies. Moreover, government subsidised housing officials, which forms part of this sector, must contend with abandoned projects and appointing new contractors; shoddy workmanship from sub-standard contractors; remedial work, including demolition and rebuilding; and systemic problems such as staff shortages and under qualified staff. The process of Government’s ideological and political designed and execution may therefore not have considered certain practicalities relative to construction principles and practice. It therefore appears that there may be some relationship between the compatibility of Government’s housing ideological and political designed (policy) and execution and general construction principles and practice. It is clear from the related literature that government subsidised housing construction has mostly been investigated as an exercise observing from the outside in, and not from a construction sector perspective. The main purpose of this study is thus to explore housing policy and practice compatibility as a major obstacle to housing delivery in general and assess whether the current housing policy is sufficiently responsive to the requirements of the government subsidised housing sector by specifically describing and exploring the effects of Government’s housing procurement policies relative to the ability of the construction sector to supply government subsidised housing. More specifically, the study describes and explores corruption, quality; contractors and worker competency, and government capacity as specific consequences of housing policy and practice incompatibility, as well as factors contributing to recipient dissatisfaction and the housing backlog. Finally, based on the finding, a proposed framework for improving the supply of subsidised housing in South Africa has been developed. The methodology for this study adopted a post-positivist philosophy, embracing a quantitative approach using questionnaires, which incorporated mainly five-point Likert type scale, but also multiple-choice questions, as instruments for data collection. Three surveys were conducted, starting with a pilot study and followed by a primary study, during which a total of 2 884 potential participants within the construction sector across South Africa were randomly sampled and solicited to participate, of which 284 responded. The respondents consisted of four groups: general contractors (76); government housing officials (34); built environment professionals (137), and built environment suppliers (37). An electronic questionnaire was sent by email to all potential participants and allowed four weeks to complete the survey. Furthermore, a housing recipient survey was conducted among 100 randomly selected recipients of government subsidised housing in the Nelson Mandela Metropolitan area, by means of a structured interview using a paper based questionnaire, over a period of two weeks. The primary outcome measures used for this study were the ranked mean scores for mainly descriptive analysis and the Chi-square test, the 𝑡-test, Cohan’s d test, ANOVA and Scheffé test, using Cronbach's alpha as a measure of internal consistency of scale and validity, for inferential analyses and hypotheses testing. Hypothesis testing was founded upon Government’s worldview that its policies will not influence the operations of the construction sector relative to housing construction, and therefore tested respondents’ perspectives with respect to the impact that government policies have in terms of contractor operations and contractor success, as well as its contribution towards the housing backlog, substandard housing, recipient dissatisfaction and corruption. The following results were obtained by means of the hypothesis testing:Government housing procurement policies are inappropriate for application in the government subsidised housing sector. Respondents therefore disagree with the notion that government policy and practices do not impact contractor operations and contractor success, and thus the supply of houses; The application of government housing procurement policies leads to inadequate quality. Respondents therefore disagree with the notion that government preferential procurement policies do not impact quality; Government’s housing procurement policies inappropriately target emerging contractors. Respondents therefore disagree with the notion that Government’s targeting of emerging contractors does not impact housing supply; Government has inadequate capacity to address subsidised housing construction sector requirements in terms of housing projects. Respondents therefore disagree with the notion that Government has the capacity to address subsidised housing construction sector requirements in the supply of housing, and Government subsidised houses do not meet recipients’ expectations. Respondents therefore disagree with the notion that government subsidised houses do meet recipients’ expectations. It thus became apparent that housing supply is mostly inhibited by Government’s housing procurement policy, contributing to various factors, such as quality capability, contractor capability, systemic and administrative capacity, and resulting in recipient dissatisfaction. Using Pearson’s product moment correlation, a framework model was developed to illustrate the process flow, which revealed definitive statistical and practical relationships between these factors, and indeed reflects complex relationships between factors inhibiting supply and resulting in recipient dissatisfaction. To find an appropriate framework model for the purpose of improving housing supply, various sources were consulted. Based on the research question, together with the aims and objectives for this study, as well as the realisation that the problems associated with housing supply relate to the project management of the construction phase, which requires interventions for improving supply, it was decided that a results framework would be the most appropriate for this purpose. The proposed framework is therefore a graphical depiction of how the research process may be used to identify problems in the government subsidised housing sector, questioning how these may be resolved, setting strategies to improve the situation, evolving hypotheses and testing these hypotheses to establish the critical factors to be considered in the process of resolving the problem in the housing sector, by means of implementation and feedback.
- Full Text:
- Date Issued: 2017
- Authors: Bekker, Jakobus Petrus
- Date: 2017
- Subjects: Housing -- South Africa Housing subsidies -- South Africa , Low-income housing -- South Africa Public housing -- South Africa Housing development -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19553 , vital:28893
- Description: Despite South African citizen’s constitutional right to adequate housing, Government’s housing delivery has been described as a complex, multi-stakeholder, multi-phase problem, exacerbated by political interference and corruption. Housing delivery in South Africa is ideologically and politically designed and executed. However, the government subsidised housing sector remains plagued by: huge and increasing backlogs; corruption; quality concerns, and recipient and stakeholder dissatisfaction. This includes the government subsidised housing construction sector, which faces issues such as: established contractors leaving the sector; late and failed completion; substandard quality; rework; cost overruns; late progress payments; and insolvencies. Moreover, government subsidised housing officials, which forms part of this sector, must contend with abandoned projects and appointing new contractors; shoddy workmanship from sub-standard contractors; remedial work, including demolition and rebuilding; and systemic problems such as staff shortages and under qualified staff. The process of Government’s ideological and political designed and execution may therefore not have considered certain practicalities relative to construction principles and practice. It therefore appears that there may be some relationship between the compatibility of Government’s housing ideological and political designed (policy) and execution and general construction principles and practice. It is clear from the related literature that government subsidised housing construction has mostly been investigated as an exercise observing from the outside in, and not from a construction sector perspective. The main purpose of this study is thus to explore housing policy and practice compatibility as a major obstacle to housing delivery in general and assess whether the current housing policy is sufficiently responsive to the requirements of the government subsidised housing sector by specifically describing and exploring the effects of Government’s housing procurement policies relative to the ability of the construction sector to supply government subsidised housing. More specifically, the study describes and explores corruption, quality; contractors and worker competency, and government capacity as specific consequences of housing policy and practice incompatibility, as well as factors contributing to recipient dissatisfaction and the housing backlog. Finally, based on the finding, a proposed framework for improving the supply of subsidised housing in South Africa has been developed. The methodology for this study adopted a post-positivist philosophy, embracing a quantitative approach using questionnaires, which incorporated mainly five-point Likert type scale, but also multiple-choice questions, as instruments for data collection. Three surveys were conducted, starting with a pilot study and followed by a primary study, during which a total of 2 884 potential participants within the construction sector across South Africa were randomly sampled and solicited to participate, of which 284 responded. The respondents consisted of four groups: general contractors (76); government housing officials (34); built environment professionals (137), and built environment suppliers (37). An electronic questionnaire was sent by email to all potential participants and allowed four weeks to complete the survey. Furthermore, a housing recipient survey was conducted among 100 randomly selected recipients of government subsidised housing in the Nelson Mandela Metropolitan area, by means of a structured interview using a paper based questionnaire, over a period of two weeks. The primary outcome measures used for this study were the ranked mean scores for mainly descriptive analysis and the Chi-square test, the 𝑡-test, Cohan’s d test, ANOVA and Scheffé test, using Cronbach's alpha as a measure of internal consistency of scale and validity, for inferential analyses and hypotheses testing. Hypothesis testing was founded upon Government’s worldview that its policies will not influence the operations of the construction sector relative to housing construction, and therefore tested respondents’ perspectives with respect to the impact that government policies have in terms of contractor operations and contractor success, as well as its contribution towards the housing backlog, substandard housing, recipient dissatisfaction and corruption. The following results were obtained by means of the hypothesis testing:Government housing procurement policies are inappropriate for application in the government subsidised housing sector. Respondents therefore disagree with the notion that government policy and practices do not impact contractor operations and contractor success, and thus the supply of houses; The application of government housing procurement policies leads to inadequate quality. Respondents therefore disagree with the notion that government preferential procurement policies do not impact quality; Government’s housing procurement policies inappropriately target emerging contractors. Respondents therefore disagree with the notion that Government’s targeting of emerging contractors does not impact housing supply; Government has inadequate capacity to address subsidised housing construction sector requirements in terms of housing projects. Respondents therefore disagree with the notion that Government has the capacity to address subsidised housing construction sector requirements in the supply of housing, and Government subsidised houses do not meet recipients’ expectations. Respondents therefore disagree with the notion that government subsidised houses do meet recipients’ expectations. It thus became apparent that housing supply is mostly inhibited by Government’s housing procurement policy, contributing to various factors, such as quality capability, contractor capability, systemic and administrative capacity, and resulting in recipient dissatisfaction. Using Pearson’s product moment correlation, a framework model was developed to illustrate the process flow, which revealed definitive statistical and practical relationships between these factors, and indeed reflects complex relationships between factors inhibiting supply and resulting in recipient dissatisfaction. To find an appropriate framework model for the purpose of improving housing supply, various sources were consulted. Based on the research question, together with the aims and objectives for this study, as well as the realisation that the problems associated with housing supply relate to the project management of the construction phase, which requires interventions for improving supply, it was decided that a results framework would be the most appropriate for this purpose. The proposed framework is therefore a graphical depiction of how the research process may be used to identify problems in the government subsidised housing sector, questioning how these may be resolved, setting strategies to improve the situation, evolving hypotheses and testing these hypotheses to establish the critical factors to be considered in the process of resolving the problem in the housing sector, by means of implementation and feedback.
- Full Text:
- Date Issued: 2017
Capacity building for developmental local government in the Kicukiro District of Rwanda
- Authors: Rutebuka, Balinda
- Date: 2015
- Subjects: Sustainable development -- Rwanda , Economic development -- Rwanda , Local government -- Rwanda
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8490 , http://hdl.handle.net/10948/d1020906
- Description: This study investigated the capacity building for developmental local government with reference to the Kicukiro District of Rwanda. Its aim was to examine the contribution of capacity-building interventions towards a developmental local government and at the same time investigate factors that hinder their implementation in Kicukiro district. The study provides an extensive historical background on local government in Rwa-nda with a particular focus on its policy, legal and institutional framework, whereby the developmental local government environment has been analysed. Furthermore, this study explores the theoretical framework of capacity building in general, and in this regard particular emphasis was given to capacity building in relation to developmental local government. The study also argued that without appropriate capacity it would be difficult for the district to fulfil its developmental mandate. This research followed both qualitative and quantitative approaches of study. It involved a survey in which a structured questionnaire and in-depth interviews were used as data gathering instruments. Through data analysis, findings of the study have shed light on the fact that capacity building constitutes an indispensable mechanism for local government to achieve its developmental mandate, despite challenges associated with the process of capacity building. The study found that the Kicukiro district has made a significant progress towards the implementation of capacity-building interventions despite the fact that these interventions are still fragmented, uncoordinated and still supply-driven. Furthermore, the study revealed that the capacities already built generated considerable impetus that contributed to socio-economic development within the Kicukiro district. The study also found that despite the progress made in both capacity building and development in Kicukiro district, there are capacity gaps and factors which are undermining further progress in this regard. Therefore, the study recommends, among others, an effective co-ordination of capacity-building interventions in order to avoid duplication and fragmentation of capacity-building efforts.
- Full Text:
- Date Issued: 2015
- Authors: Rutebuka, Balinda
- Date: 2015
- Subjects: Sustainable development -- Rwanda , Economic development -- Rwanda , Local government -- Rwanda
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8490 , http://hdl.handle.net/10948/d1020906
- Description: This study investigated the capacity building for developmental local government with reference to the Kicukiro District of Rwanda. Its aim was to examine the contribution of capacity-building interventions towards a developmental local government and at the same time investigate factors that hinder their implementation in Kicukiro district. The study provides an extensive historical background on local government in Rwa-nda with a particular focus on its policy, legal and institutional framework, whereby the developmental local government environment has been analysed. Furthermore, this study explores the theoretical framework of capacity building in general, and in this regard particular emphasis was given to capacity building in relation to developmental local government. The study also argued that without appropriate capacity it would be difficult for the district to fulfil its developmental mandate. This research followed both qualitative and quantitative approaches of study. It involved a survey in which a structured questionnaire and in-depth interviews were used as data gathering instruments. Through data analysis, findings of the study have shed light on the fact that capacity building constitutes an indispensable mechanism for local government to achieve its developmental mandate, despite challenges associated with the process of capacity building. The study found that the Kicukiro district has made a significant progress towards the implementation of capacity-building interventions despite the fact that these interventions are still fragmented, uncoordinated and still supply-driven. Furthermore, the study revealed that the capacities already built generated considerable impetus that contributed to socio-economic development within the Kicukiro district. The study also found that despite the progress made in both capacity building and development in Kicukiro district, there are capacity gaps and factors which are undermining further progress in this regard. Therefore, the study recommends, among others, an effective co-ordination of capacity-building interventions in order to avoid duplication and fragmentation of capacity-building efforts.
- Full Text:
- Date Issued: 2015
Business ethics in Ugandan small and medium-sized enterprises
- Authors: Mayanja, Jamiah
- Date: 2016
- Subjects: Business ethics -- Uganda , Small business -- Uganda
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/8521 , vital:26400
- Description: SMEs have been acknowledged by governments globally as a prime source of economic growth and development. In Africa there has been a noticeable increase in the number of SME establishments. In Uganda, SMEs are the most popular business choice and play a major role in the national economy. Although SMEs significant economic contributions are generally acknowledged, being ethical and successful has become a challenge, as many SMEs in Uganda have not fully adopted and integrated ethics into their business strategies. Understanding the reasons for the increased unethical behaviour in SMEs is central to their continued business success. The primary objective of the study was to investigate the factors that influence ethical business conduct in Ugandan SMEs. From a comprehensive literature review, three main independent variables (staff-, business- and external environment factors) were identified as variables influencing ethical business conduct (dependent variable) of SMEs. A hypothetical model was developed to determine whether the independent variables have an influence on the dependent variable. Twelve hypotheses were formulated to test the relationships between three staff factors, five business factors, four external environment factors and ethical business conduct. The study sought the perceptions of SME owners or managers in the Kampala District and utilised the quantitative research paradigm. A survey was conducted with the aid of a structured self-administered questionnaire distributed by three fieldworkers. A combination of convenience and snowball sampling was utilised. The final sample comprised 384 respondents. The validity of the measuring instrument was ascertained by using exploratory factor analysis. The Cronbach‟s alpha values for reliability were calculated for each of the factors identified during the exploratory factor analysis. A total of ten valid and reliable factors were retained. Pearson product-moment correlation and multiple regression analysis were used to test the correlation and statistical significance of the relationships hypothesised between the various independent and dependent variables. One statistically significant relationship was found between the staff factors (employee attitude) and ethical business conduct. Two statistically significant relationships were found between the business factors (knowledge acquisition and management practices) and ethical business conduct. Three statistically significant relationships were found between the external environment factors (legal requirements, industry norm and media power) and ethical business conduct. External environmental factors seem to have a greater influence on SME ethical business conduct in Uganda. Multivariate Analysis of Variance (MANOVA) was used to identify if significant relationships exist between the eight demographic variables and seven reliable and valid independent variables. Furthermore, post-hoc Scheffé tests identified where the significant differences occurred between the different categories. Cohen‟s d-values were calculated in order to assess the practical significance of the mean scores. A total of twelve practical significant relationships were identified. SME owners or managers should consider employing staff with the right attitude to uphold sound ethical business values. They should implement ethical management practices to promote ethical business conduct amongst employees and ensure that employees are made aware of what is regarded as acceptable ethical business behaviour. SME owners or managers should adhere to legal requirements and industry norms to be known as businesses exhibiting ethical behaviour and utilise media to instil and guide ethical values in employees. Lastly, they must pay attention to the role that demographical variables such as: gender, level of education, current employment status, number of years in business and number of employees, play in behaving ethically in business.
- Full Text:
- Date Issued: 2016
- Authors: Mayanja, Jamiah
- Date: 2016
- Subjects: Business ethics -- Uganda , Small business -- Uganda
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/8521 , vital:26400
- Description: SMEs have been acknowledged by governments globally as a prime source of economic growth and development. In Africa there has been a noticeable increase in the number of SME establishments. In Uganda, SMEs are the most popular business choice and play a major role in the national economy. Although SMEs significant economic contributions are generally acknowledged, being ethical and successful has become a challenge, as many SMEs in Uganda have not fully adopted and integrated ethics into their business strategies. Understanding the reasons for the increased unethical behaviour in SMEs is central to their continued business success. The primary objective of the study was to investigate the factors that influence ethical business conduct in Ugandan SMEs. From a comprehensive literature review, three main independent variables (staff-, business- and external environment factors) were identified as variables influencing ethical business conduct (dependent variable) of SMEs. A hypothetical model was developed to determine whether the independent variables have an influence on the dependent variable. Twelve hypotheses were formulated to test the relationships between three staff factors, five business factors, four external environment factors and ethical business conduct. The study sought the perceptions of SME owners or managers in the Kampala District and utilised the quantitative research paradigm. A survey was conducted with the aid of a structured self-administered questionnaire distributed by three fieldworkers. A combination of convenience and snowball sampling was utilised. The final sample comprised 384 respondents. The validity of the measuring instrument was ascertained by using exploratory factor analysis. The Cronbach‟s alpha values for reliability were calculated for each of the factors identified during the exploratory factor analysis. A total of ten valid and reliable factors were retained. Pearson product-moment correlation and multiple regression analysis were used to test the correlation and statistical significance of the relationships hypothesised between the various independent and dependent variables. One statistically significant relationship was found between the staff factors (employee attitude) and ethical business conduct. Two statistically significant relationships were found between the business factors (knowledge acquisition and management practices) and ethical business conduct. Three statistically significant relationships were found between the external environment factors (legal requirements, industry norm and media power) and ethical business conduct. External environmental factors seem to have a greater influence on SME ethical business conduct in Uganda. Multivariate Analysis of Variance (MANOVA) was used to identify if significant relationships exist between the eight demographic variables and seven reliable and valid independent variables. Furthermore, post-hoc Scheffé tests identified where the significant differences occurred between the different categories. Cohen‟s d-values were calculated in order to assess the practical significance of the mean scores. A total of twelve practical significant relationships were identified. SME owners or managers should consider employing staff with the right attitude to uphold sound ethical business values. They should implement ethical management practices to promote ethical business conduct amongst employees and ensure that employees are made aware of what is regarded as acceptable ethical business behaviour. SME owners or managers should adhere to legal requirements and industry norms to be known as businesses exhibiting ethical behaviour and utilise media to instil and guide ethical values in employees. Lastly, they must pay attention to the role that demographical variables such as: gender, level of education, current employment status, number of years in business and number of employees, play in behaving ethically in business.
- Full Text:
- Date Issued: 2016
The evaluation of a pedagogical-program development environment for Novice programmers : a comparative study
- Authors: Vogts, Dieter
- Date: 2007
- Subjects: Computer programming -- Study and teaching , Programming languages (Electronic computers) , Web site development
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10477 , http://hdl.handle.net/10948/638 , Computer programming -- Study and teaching , Programming languages (Electronic computers) , Web site development
- Description: It is an acknowledged fact that many novice programmers experience difficulty in the process of learning to program. One of the contributing factors to this difficulty is the Program Development Environment (PDE). Professional-PDEs are those developed specifically for professional programmers, but are often used by educational institutions in the instruction of programming. It has long been accepted that such environments are inappropriate in the instruction of programming due to unnecessary complexity and lack of support for novice programmers in the learning process. Numerous pedagogical-PDEs supporting the mechanics of programming have been developed in response to this. A review of literature, however, indicates that very limited empirical studies comparing pedagogical-PDEs and professional-PDEs have been conducted. The current study investigates whether there are measurable benefits to using a pedagogical-PDE supporting the mechanics of programming in the instruction of programming instead of a professional-PDE. A comparative study of this nature requires a representative pedagogical-PDE and representative professional-PDE be compared with one another. The first part of the current study determines a set of requirements that a pedagogical- PDE should adhere to based on literature. A set of representative features for a pedagogical-PDE is derived by examining the features of existing PDEs in conjunction with the set of requirements. Based on these features, a pedagogical-PDE, known as SimplifIDE, is developed that implements the representative set of features and that meets are the requirements for a pedagogical-PDE. The second part of the current study is the specification and administration of an empirical experiment in which SimplifIDE and Borland© DelphiTM are compared with one another. A holistic approach in determining the differences between the PDEs is taken and three main areas are examined, namely academic performance, perceptions and programming behavior.
- Full Text:
- Date Issued: 2007
- Authors: Vogts, Dieter
- Date: 2007
- Subjects: Computer programming -- Study and teaching , Programming languages (Electronic computers) , Web site development
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10477 , http://hdl.handle.net/10948/638 , Computer programming -- Study and teaching , Programming languages (Electronic computers) , Web site development
- Description: It is an acknowledged fact that many novice programmers experience difficulty in the process of learning to program. One of the contributing factors to this difficulty is the Program Development Environment (PDE). Professional-PDEs are those developed specifically for professional programmers, but are often used by educational institutions in the instruction of programming. It has long been accepted that such environments are inappropriate in the instruction of programming due to unnecessary complexity and lack of support for novice programmers in the learning process. Numerous pedagogical-PDEs supporting the mechanics of programming have been developed in response to this. A review of literature, however, indicates that very limited empirical studies comparing pedagogical-PDEs and professional-PDEs have been conducted. The current study investigates whether there are measurable benefits to using a pedagogical-PDE supporting the mechanics of programming in the instruction of programming instead of a professional-PDE. A comparative study of this nature requires a representative pedagogical-PDE and representative professional-PDE be compared with one another. The first part of the current study determines a set of requirements that a pedagogical- PDE should adhere to based on literature. A set of representative features for a pedagogical-PDE is derived by examining the features of existing PDEs in conjunction with the set of requirements. Based on these features, a pedagogical-PDE, known as SimplifIDE, is developed that implements the representative set of features and that meets are the requirements for a pedagogical-PDE. The second part of the current study is the specification and administration of an empirical experiment in which SimplifIDE and Borland© DelphiTM are compared with one another. A holistic approach in determining the differences between the PDEs is taken and three main areas are examined, namely academic performance, perceptions and programming behavior.
- Full Text:
- Date Issued: 2007
Post-war reconstruction and development: a collective case study
- Authors: Heleta, Savo
- Date: 2013
- Subjects: Civil war , Peace , Peace-building , Nation-building
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9058 , http://hdl.handle.net/10948/d1008049 , Civil war , Peace , Peace-building , Nation-building
- Description: Since the end of the Cold War, there has been a surge in post-war stabilisation, reconstruction and development operations around the world. Externally driven efforts have been shaped by the liberal peace framework, which assumes that a rapid transmission or imposition of neo-liberal norms and values, combined with Western-style governance institutions, would create conditions for lasting peace and prosperity. Only in a few instances countries have attempted internally driven post-war reconstruction and development; in most cases, these efforts were either ignored or suppressed by international analysts, experts, academics and organisations. Despite all the expertise and funding spent since the early 1990s, externally driven operations have not led to lasting peace and stability, establishment of functioning institutions, eradication of poverty, livelihood improvements and economic reconstruction and development in war-torn countries. All too often, programmes, policies and „solutions‟ were designed and imposed by external actors either because they worked elsewhere or because they were influenced by geopolitical, economic and/or security interests of powerful countries. Furthermore, external actors have tended to assume that generic approaches based on the liberal peace framework can work in all places, while ignoring local actors, contexts and knowledge. Focusing on Bosnia and Herzegovina, South Sudan and Somaliland, this exploratory qualitative study critically explores and assesses both externally and internally driven post-war reconstruction and development practices and operations in order to understand the strengths and shortcomings of both approaches and offer recommendations for future improvements. This is important since socio-economic recovery and economic development are crucial for lasting stability and peace in post-war countries.
- Full Text:
- Date Issued: 2013
- Authors: Heleta, Savo
- Date: 2013
- Subjects: Civil war , Peace , Peace-building , Nation-building
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9058 , http://hdl.handle.net/10948/d1008049 , Civil war , Peace , Peace-building , Nation-building
- Description: Since the end of the Cold War, there has been a surge in post-war stabilisation, reconstruction and development operations around the world. Externally driven efforts have been shaped by the liberal peace framework, which assumes that a rapid transmission or imposition of neo-liberal norms and values, combined with Western-style governance institutions, would create conditions for lasting peace and prosperity. Only in a few instances countries have attempted internally driven post-war reconstruction and development; in most cases, these efforts were either ignored or suppressed by international analysts, experts, academics and organisations. Despite all the expertise and funding spent since the early 1990s, externally driven operations have not led to lasting peace and stability, establishment of functioning institutions, eradication of poverty, livelihood improvements and economic reconstruction and development in war-torn countries. All too often, programmes, policies and „solutions‟ were designed and imposed by external actors either because they worked elsewhere or because they were influenced by geopolitical, economic and/or security interests of powerful countries. Furthermore, external actors have tended to assume that generic approaches based on the liberal peace framework can work in all places, while ignoring local actors, contexts and knowledge. Focusing on Bosnia and Herzegovina, South Sudan and Somaliland, this exploratory qualitative study critically explores and assesses both externally and internally driven post-war reconstruction and development practices and operations in order to understand the strengths and shortcomings of both approaches and offer recommendations for future improvements. This is important since socio-economic recovery and economic development are crucial for lasting stability and peace in post-war countries.
- Full Text:
- Date Issued: 2013
Perceptions regarding the impact of ubuntu and servant leadership on employee engagement in the workplace
- Authors: Muller, Roger Joseph
- Date: 2017
- Subjects: Leadership Management -- South Africa , Management -- Africa -- Philosophy Employees -- Attitudes Organizational effectiveness -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19409 , vital:28868
- Description: South Africa have some of the lowest employee engagement scores in the world. Leadership is a key determinant of employee engagement, but existing leadership theories and practices are often ineffective in more humanistic and collectivistic cultures like South Africa. To this end, Ubuntu and servant leadership is posited to positively influence organisational performance by increasing employee engagement. The primary objective of this study is to investigate perceptions regarding the impact of Ubuntu and servant leadership on employee engagement in private organisations of the Eastern Cape. A quantitative research design was utilised and yielded 428 usable questionnaires through nonprobability sampling. The empirical results revealed that the spirit of solidarity dimension of Ubuntu leadership influenced significantly and positively. Furthermore, it was found that survival and spirit of solidarity had a significant and positive influence on organisational performance as measured through the balanced scorecard (BSC). Servant leadership positively and significantly influenced employee engagement and organisational performance. In addition, it was found that employee engagement mediates the relationship between servant leadership and organizational performance. This study has made several significant empirical and theoretical contributions, and can be classified as one of the pioneering attempts to gather empirical evidence on how Ubuntu manifests in the workplace. The high convergent validity of the dimensions of Ubuntu leadership and comparisons to Servant leadership established in this study, provides some proof of its novel contribution towards leadership theory. A highly reliable and valid measuring instrument was developed to evaluate Ubuntu from a leadership perspective. This is a major empirical contribution as, at the time, there were no reliable scales available in South Africa to measure Ubuntu leadership.
- Full Text:
- Date Issued: 2017
- Authors: Muller, Roger Joseph
- Date: 2017
- Subjects: Leadership Management -- South Africa , Management -- Africa -- Philosophy Employees -- Attitudes Organizational effectiveness -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19409 , vital:28868
- Description: South Africa have some of the lowest employee engagement scores in the world. Leadership is a key determinant of employee engagement, but existing leadership theories and practices are often ineffective in more humanistic and collectivistic cultures like South Africa. To this end, Ubuntu and servant leadership is posited to positively influence organisational performance by increasing employee engagement. The primary objective of this study is to investigate perceptions regarding the impact of Ubuntu and servant leadership on employee engagement in private organisations of the Eastern Cape. A quantitative research design was utilised and yielded 428 usable questionnaires through nonprobability sampling. The empirical results revealed that the spirit of solidarity dimension of Ubuntu leadership influenced significantly and positively. Furthermore, it was found that survival and spirit of solidarity had a significant and positive influence on organisational performance as measured through the balanced scorecard (BSC). Servant leadership positively and significantly influenced employee engagement and organisational performance. In addition, it was found that employee engagement mediates the relationship between servant leadership and organizational performance. This study has made several significant empirical and theoretical contributions, and can be classified as one of the pioneering attempts to gather empirical evidence on how Ubuntu manifests in the workplace. The high convergent validity of the dimensions of Ubuntu leadership and comparisons to Servant leadership established in this study, provides some proof of its novel contribution towards leadership theory. A highly reliable and valid measuring instrument was developed to evaluate Ubuntu from a leadership perspective. This is a major empirical contribution as, at the time, there were no reliable scales available in South Africa to measure Ubuntu leadership.
- Full Text:
- Date Issued: 2017
Nursing strategies to facilitate self-management in persons living with diabetes mellitus type 2
- Authors: O'Brien Coleen Ann
- Date: 2011
- Subjects: Diabetes -- Treatment , Nurses -- South Africa , Diabetes -- Prevention Popular works
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10019 , http://hdl.handle.net/10948/1627 , Diabetes -- Treatment , Nurses -- South Africa , Diabetes -- Prevention Popular works
- Description: The growing pandemic of diabetes mellitus (DM) is continuing to spread around the world with developing countries being most vulnerable. Diabetes mellitus is the direct cause of 5 percent of deaths worldwide at present, with an expected increase of 50percent in the next 10 years. Diabetes mellitus was virtually unknown in Africa at the start of the 20th century but the incidence is expected to increase by 80 percent by 2025. South African estimates indicate that at present there are up to four million people living with DM in South Africa, with an expected rise of 25 percent by 2020. If DM is not adequately controlled, life-threatening complications ensue, resulting in financial, physical and emotional costs both for people living with the condition and for their families. There is also a great financial burden on the state, both directly due to the cost of providing health care and indirectly due to loss of productivity and a reduced tax base. Global initiatives against DM include the Diabetes Strategy for Africa compiled by the International Diabetes Federation and World Health Organization. There are several forms of DM with Type 2 being the most common with an estimated 95% of cases. Optimal glycaemic control is essential for the management of DM, potentially allowing the course of the disease to be slowed or halted. The previous medical model of management of chronic disease has changed to an empowerment approach where the person living with the condition is a partner in the management process. This is particularly true of DM where all aspects of life are affected by the condition. During Phase One of this study, a qualitative, exploratory, descriptive, contextual approach was utilized to explore and describe the experiences of persons living with DM and of diabetes nurse educators who assist them in Nelson Mandela Bay. During Phase Two, a conceptual framework was created and utilized to develop strategies which professional nurses may use in facilitating self-management by persons living with DM. Persons living with DM experience a definite initial experience on diagnosis of DM but gradually gain an acceptance and acknowledgment of their condition. They have definite views on the concept of self-management and experience both positive and negative factors influencing self-management. They also have definite ideas on how professional nurses may assist them in achieving self-management. These findings were confirmed ii by the experiences of the diabetes nurse educators who formed the second group of participants in this study. The ACE approach to self-management of DM consists of an Action Strategy, a Coordination Strategy and an Education Strategy. The ACE approach makes use of grand and functional strategies implemented on the macro (national), meso (provincial) and micro (local) levels to enable the professional nurse to assist persons living with DM to achieve self-management of their condition. Grand strategies need to be implemented on a macro or meso level to enable the professional nurse to function effectively on a micro level. Assisting the patient has to go beyond merely improving knowledge about the condition but has to include individual goal setting as well as problem solving skills and coping strategies as part of a therapeutic relationship between the professional nurse and the person living with DM. The level of personal responsibility achieved by persons living with DM is affected by the memes which they hold regarding their level of health and their ability to address any barriers to self-management which they may experience. Making use of the process of the therapeutic relationship, the professional nurse is able to positively influence the memes held by persons living with DM and assist them in achieving a greater level of personal responsibility. The therapeutic relationship is potentially influenced by all three of the strategies described above. This study provides insight into the experiences of persons living with DM and of the diabetes nurse educators who assist them in Nelson Mandela Bay. Recommendations regarding the implementation of a National Diabetes Policy on a macro level are made, as well as recommendations for nursing practice, education and research. The strategies which were evaluated by an Expert Panel provide a tool for the professional nurse to use while assisting persons living with DM by facilitating the growth of personal responsibility leading to self-management.
- Full Text:
- Date Issued: 2011
- Authors: O'Brien Coleen Ann
- Date: 2011
- Subjects: Diabetes -- Treatment , Nurses -- South Africa , Diabetes -- Prevention Popular works
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10019 , http://hdl.handle.net/10948/1627 , Diabetes -- Treatment , Nurses -- South Africa , Diabetes -- Prevention Popular works
- Description: The growing pandemic of diabetes mellitus (DM) is continuing to spread around the world with developing countries being most vulnerable. Diabetes mellitus is the direct cause of 5 percent of deaths worldwide at present, with an expected increase of 50percent in the next 10 years. Diabetes mellitus was virtually unknown in Africa at the start of the 20th century but the incidence is expected to increase by 80 percent by 2025. South African estimates indicate that at present there are up to four million people living with DM in South Africa, with an expected rise of 25 percent by 2020. If DM is not adequately controlled, life-threatening complications ensue, resulting in financial, physical and emotional costs both for people living with the condition and for their families. There is also a great financial burden on the state, both directly due to the cost of providing health care and indirectly due to loss of productivity and a reduced tax base. Global initiatives against DM include the Diabetes Strategy for Africa compiled by the International Diabetes Federation and World Health Organization. There are several forms of DM with Type 2 being the most common with an estimated 95% of cases. Optimal glycaemic control is essential for the management of DM, potentially allowing the course of the disease to be slowed or halted. The previous medical model of management of chronic disease has changed to an empowerment approach where the person living with the condition is a partner in the management process. This is particularly true of DM where all aspects of life are affected by the condition. During Phase One of this study, a qualitative, exploratory, descriptive, contextual approach was utilized to explore and describe the experiences of persons living with DM and of diabetes nurse educators who assist them in Nelson Mandela Bay. During Phase Two, a conceptual framework was created and utilized to develop strategies which professional nurses may use in facilitating self-management by persons living with DM. Persons living with DM experience a definite initial experience on diagnosis of DM but gradually gain an acceptance and acknowledgment of their condition. They have definite views on the concept of self-management and experience both positive and negative factors influencing self-management. They also have definite ideas on how professional nurses may assist them in achieving self-management. These findings were confirmed ii by the experiences of the diabetes nurse educators who formed the second group of participants in this study. The ACE approach to self-management of DM consists of an Action Strategy, a Coordination Strategy and an Education Strategy. The ACE approach makes use of grand and functional strategies implemented on the macro (national), meso (provincial) and micro (local) levels to enable the professional nurse to assist persons living with DM to achieve self-management of their condition. Grand strategies need to be implemented on a macro or meso level to enable the professional nurse to function effectively on a micro level. Assisting the patient has to go beyond merely improving knowledge about the condition but has to include individual goal setting as well as problem solving skills and coping strategies as part of a therapeutic relationship between the professional nurse and the person living with DM. The level of personal responsibility achieved by persons living with DM is affected by the memes which they hold regarding their level of health and their ability to address any barriers to self-management which they may experience. Making use of the process of the therapeutic relationship, the professional nurse is able to positively influence the memes held by persons living with DM and assist them in achieving a greater level of personal responsibility. The therapeutic relationship is potentially influenced by all three of the strategies described above. This study provides insight into the experiences of persons living with DM and of the diabetes nurse educators who assist them in Nelson Mandela Bay. Recommendations regarding the implementation of a National Diabetes Policy on a macro level are made, as well as recommendations for nursing practice, education and research. The strategies which were evaluated by an Expert Panel provide a tool for the professional nurse to use while assisting persons living with DM by facilitating the growth of personal responsibility leading to self-management.
- Full Text:
- Date Issued: 2011
The role of the press in political conflicts in Kenya : a case study of the performance of the nation and the East African Standard Newspapers
- Authors: Nyambuga, Charles Ongadi
- Date: 2011
- Subjects: Press and politics -- Kenya , Government and the press -- Kenya , Mass media -- Political aspects , Kenya -- Politics and government
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:16135 , http://hdl.handle.net/10948/1449 , Press and politics -- Kenya , Government and the press -- Kenya , Mass media -- Political aspects , Kenya -- Politics and government
- Description: This study focuses on the role of the press in violent political conflicts in Kenya in the period that preceded the 2005 referendum on the draft constitution. Based on media reports, six major thematic areas of concern emerged during constitution making. These were: land tenure, devolution of power, the executive, the legislature, the Bill of Rights, and the provincial administration. These sections of the draft constitution caused a remarkable divergence of opinion. The citizens either supported or opposed the draft constitution on the basis of how the draft had treated those sections in the draft constitution. Besides the major thematic areas, newspapers regularly focused and reported on ethnicity, violence, political leaders‟ utterances, the process of constitution making, and political conflicts. Three main objectives guided the study. The first objective focused on the relationship between media content and different levels of political conflict. The influence of media content and how these may have led to high political conflict, medium political conflict, low political conflict and no political conflict, are tested in this study. The second objective highlighted the kind of coverage that the draft constitution got during the period that preceded the referendum in November, 2005. This objective facilitated interrogation of media content and whether media content focused on aspects of the draft constitution such as land ownership, the executive, devolution, the legislature and religion, as highlighted in the draft constitution of Kenya 2005. The third objective examined the thematic emphasis that the media undertook in the period that preceded the referendum. The themes that were dominant in the period before the referendum could have impacted on readers' perceptions of the critical issues that could have informed the voters' decisions. Three primary questions were addressed in the study: Firstly, was there a link between media content and different levels of political conflict in weak democracies such as Kenya? Secondly, did media content influence ethnicity and did it encourage ethnic conflict in diverse societies? Finally, what were the key thematic areas of coverage by the press, and how were they used during the referendum? In order to study these research objectives, I used a combination of theories to enhance understanding of the interplay between media content and audience in the society. The theories are: agenda setting, two-step flow, priming, framing, and the public sphere. The study adopts a triangulation convergence design in mixed- methods research that involves both qualitative and quantitative methods. A structured questionnaire and content analysis were used to seek responses to the research questions of the study and to meet the stated objectives. The research revealed that the two newspapers under investigation, namely the East African Standard and the Nation, provided more coverage to issues that were not central to the content of the draft constitution, such as political leaders' utterances, violence, ethnicity, and the process of constitution making. This showed that the newspapers tended to sensationalise issues instead of providing objective coverage of political matters. These newspapers used their opinion pages to educate their readers on how the referendum was turning violent. The theme of political leaders' utterances is closely linked to that of violence. This suggests that the violence was influenced by some of the leaders' statements. These utterances, and more so those that touched on ethnicity, could therefore have been a potential cause of the ensuing political conflicts during the 2005 referendum on the draft constitution. The findings reveal that newspaper editors tended to focus on political conflict at the expense of the actual content of the draft constitution. This would have provided insight and knowledge on the document and avoided sensational reporting, which could have contributed to violent political conflicts during the period that preceded the referendum on the draft constitution of Kenya.
- Full Text:
- Date Issued: 2011
- Authors: Nyambuga, Charles Ongadi
- Date: 2011
- Subjects: Press and politics -- Kenya , Government and the press -- Kenya , Mass media -- Political aspects , Kenya -- Politics and government
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:16135 , http://hdl.handle.net/10948/1449 , Press and politics -- Kenya , Government and the press -- Kenya , Mass media -- Political aspects , Kenya -- Politics and government
- Description: This study focuses on the role of the press in violent political conflicts in Kenya in the period that preceded the 2005 referendum on the draft constitution. Based on media reports, six major thematic areas of concern emerged during constitution making. These were: land tenure, devolution of power, the executive, the legislature, the Bill of Rights, and the provincial administration. These sections of the draft constitution caused a remarkable divergence of opinion. The citizens either supported or opposed the draft constitution on the basis of how the draft had treated those sections in the draft constitution. Besides the major thematic areas, newspapers regularly focused and reported on ethnicity, violence, political leaders‟ utterances, the process of constitution making, and political conflicts. Three main objectives guided the study. The first objective focused on the relationship between media content and different levels of political conflict. The influence of media content and how these may have led to high political conflict, medium political conflict, low political conflict and no political conflict, are tested in this study. The second objective highlighted the kind of coverage that the draft constitution got during the period that preceded the referendum in November, 2005. This objective facilitated interrogation of media content and whether media content focused on aspects of the draft constitution such as land ownership, the executive, devolution, the legislature and religion, as highlighted in the draft constitution of Kenya 2005. The third objective examined the thematic emphasis that the media undertook in the period that preceded the referendum. The themes that were dominant in the period before the referendum could have impacted on readers' perceptions of the critical issues that could have informed the voters' decisions. Three primary questions were addressed in the study: Firstly, was there a link between media content and different levels of political conflict in weak democracies such as Kenya? Secondly, did media content influence ethnicity and did it encourage ethnic conflict in diverse societies? Finally, what were the key thematic areas of coverage by the press, and how were they used during the referendum? In order to study these research objectives, I used a combination of theories to enhance understanding of the interplay between media content and audience in the society. The theories are: agenda setting, two-step flow, priming, framing, and the public sphere. The study adopts a triangulation convergence design in mixed- methods research that involves both qualitative and quantitative methods. A structured questionnaire and content analysis were used to seek responses to the research questions of the study and to meet the stated objectives. The research revealed that the two newspapers under investigation, namely the East African Standard and the Nation, provided more coverage to issues that were not central to the content of the draft constitution, such as political leaders' utterances, violence, ethnicity, and the process of constitution making. This showed that the newspapers tended to sensationalise issues instead of providing objective coverage of political matters. These newspapers used their opinion pages to educate their readers on how the referendum was turning violent. The theme of political leaders' utterances is closely linked to that of violence. This suggests that the violence was influenced by some of the leaders' statements. These utterances, and more so those that touched on ethnicity, could therefore have been a potential cause of the ensuing political conflicts during the 2005 referendum on the draft constitution. The findings reveal that newspaper editors tended to focus on political conflict at the expense of the actual content of the draft constitution. This would have provided insight and knowledge on the document and avoided sensational reporting, which could have contributed to violent political conflicts during the period that preceded the referendum on the draft constitution of Kenya.
- Full Text:
- Date Issued: 2011
Utility of the cognitive assessment system (CAS) to predict reading proficiency in grade 1
- Authors: Hüttenrauch, Maria Eleonore
- Date: 2008
- Subjects: Das-Naglieri Cognitive Assessment System , Intelligence tests for preliterates , Cognition in children , Reading disability
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9839 , http://hdl.handle.net/10948/965 , Das-Naglieri Cognitive Assessment System , Intelligence tests for preliterates , Cognition in children , Reading disability
- Description: Reading disability, as the most commonly diagnosed learning disability, continues to pose a tenacious problem to teachers, practitioners and researchers. In an effort to understand the causes of reading disability, voluminous research has been undertaken over the past decades to pinpoint its causes or developmental stumbling blocks. One approach, the Planning, Attention, Simultaneous, and Successive processing (PASS) model, combines neuropsychological theory with elements from cognitive psychology. Based on this model, the Cognitive Assessment System (CAS), as well as methods of intervention for reading disability were developed. Although many studies have been conducted that investigated reading disability in terms of PASS cognitive processes, the final version of the CAS and its predictive utility with respect to reading disability has not been explored to date. The present study aimed to investigate the utility of the CAS, administered at the beginning of grade 1, to predict reading proficiency at the end of grade 1. The sample was comprised of 119 “average” (i.e., belonging to the general population) grade 1 students from schools of the Calgary Board of Education (CBE). The Basic Battery of the CAS was administered to the children in the sample at the beginning of grade 1, as well as four reading subtests of the Woodcock-Johnson Tests of Achievement – Third Edition (WJ-III ACH) at the end of grade 1. The WJ-III ACH yielded a cluster score for basic reading and one for reading comprehension. Correlational and regression analyses were used to address the first aim of this study, namely to explore the relationship between students’ scores on the CAS and their later reading proficiency. To this end, the children’s CAS Full Scale scores and WJ-III ACH cluster scores were subjected to a hierarchical regression analysis, whereby age, gender, and - xviii - SES were kept constant by entering them first in the equation. Next, the relationship between students’ PASS scale scores and the CAS subtest scores respectively and scores on the WJ-III ACH Basic Reading and Reading Comprehension Cluster scores was explored by means of stepwise regression analysis. To improve on the generalizability of results, the regression analyses were conducted on a randomly drawn analysis sample consisting of 80% of the sample, and cross-validated on the remaining 20% of the sample. The second aim of the present study was to ascertain whether clusters could be identified on the basis of CAS performance as well as levels of reading proficiency. To this end, the children’s CAS FS scores, PASS scale scores, and CAS subtest scores were subjected to cluster analyses. The investigation of aim 1 yielded some encouraging results, in that it was found that, together with the covariates: • The CAS FS emerged as a moderately strong predictor of both basic reading and reading comprehension; • Successive processing, in particular the Word Series subtest, significantly predicted basic reading skills; • Successive and simultaneous processing, particularly the Nonverbal Matrices and Sentence Repetition subtests, were significant predictors of reading comprehension; The second aim, which explored the relationship between patterns of CAS cognitive processes and their relationship with reading proficiency, yielded: • Two clusters with distinctly different PASS scale scores and with significant differences between their levels of reading proficiency. Higher PASS scales scores, particularly on the Attention and Planning scales, were associated with higher reading proficiency scores. • Four clusters with distinctly different CAS subtest scores that were also associated with distinctly different levels of reading performance. Good - xix - reading proficiency was associated with good CAS performance, whereas weaker reading proficiency was linked to weaker CAS performance. Biographical variables, such as age and SES were found to be related to performance on the CAS and reading proficiency, while gender did not emerge as an important predictor variable. The present study demonstrated the usefulness of the CAS, particularly its Successive and Simultaneous scales, as potential early predictor of reading disability. An exploration of the relationship between patterns of CAS cognitive processes and later reading proficiency also yielded encouraging and interesting results.
- Full Text:
- Date Issued: 2008
- Authors: Hüttenrauch, Maria Eleonore
- Date: 2008
- Subjects: Das-Naglieri Cognitive Assessment System , Intelligence tests for preliterates , Cognition in children , Reading disability
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9839 , http://hdl.handle.net/10948/965 , Das-Naglieri Cognitive Assessment System , Intelligence tests for preliterates , Cognition in children , Reading disability
- Description: Reading disability, as the most commonly diagnosed learning disability, continues to pose a tenacious problem to teachers, practitioners and researchers. In an effort to understand the causes of reading disability, voluminous research has been undertaken over the past decades to pinpoint its causes or developmental stumbling blocks. One approach, the Planning, Attention, Simultaneous, and Successive processing (PASS) model, combines neuropsychological theory with elements from cognitive psychology. Based on this model, the Cognitive Assessment System (CAS), as well as methods of intervention for reading disability were developed. Although many studies have been conducted that investigated reading disability in terms of PASS cognitive processes, the final version of the CAS and its predictive utility with respect to reading disability has not been explored to date. The present study aimed to investigate the utility of the CAS, administered at the beginning of grade 1, to predict reading proficiency at the end of grade 1. The sample was comprised of 119 “average” (i.e., belonging to the general population) grade 1 students from schools of the Calgary Board of Education (CBE). The Basic Battery of the CAS was administered to the children in the sample at the beginning of grade 1, as well as four reading subtests of the Woodcock-Johnson Tests of Achievement – Third Edition (WJ-III ACH) at the end of grade 1. The WJ-III ACH yielded a cluster score for basic reading and one for reading comprehension. Correlational and regression analyses were used to address the first aim of this study, namely to explore the relationship between students’ scores on the CAS and their later reading proficiency. To this end, the children’s CAS Full Scale scores and WJ-III ACH cluster scores were subjected to a hierarchical regression analysis, whereby age, gender, and - xviii - SES were kept constant by entering them first in the equation. Next, the relationship between students’ PASS scale scores and the CAS subtest scores respectively and scores on the WJ-III ACH Basic Reading and Reading Comprehension Cluster scores was explored by means of stepwise regression analysis. To improve on the generalizability of results, the regression analyses were conducted on a randomly drawn analysis sample consisting of 80% of the sample, and cross-validated on the remaining 20% of the sample. The second aim of the present study was to ascertain whether clusters could be identified on the basis of CAS performance as well as levels of reading proficiency. To this end, the children’s CAS FS scores, PASS scale scores, and CAS subtest scores were subjected to cluster analyses. The investigation of aim 1 yielded some encouraging results, in that it was found that, together with the covariates: • The CAS FS emerged as a moderately strong predictor of both basic reading and reading comprehension; • Successive processing, in particular the Word Series subtest, significantly predicted basic reading skills; • Successive and simultaneous processing, particularly the Nonverbal Matrices and Sentence Repetition subtests, were significant predictors of reading comprehension; The second aim, which explored the relationship between patterns of CAS cognitive processes and their relationship with reading proficiency, yielded: • Two clusters with distinctly different PASS scale scores and with significant differences between their levels of reading proficiency. Higher PASS scales scores, particularly on the Attention and Planning scales, were associated with higher reading proficiency scores. • Four clusters with distinctly different CAS subtest scores that were also associated with distinctly different levels of reading performance. Good - xix - reading proficiency was associated with good CAS performance, whereas weaker reading proficiency was linked to weaker CAS performance. Biographical variables, such as age and SES were found to be related to performance on the CAS and reading proficiency, while gender did not emerge as an important predictor variable. The present study demonstrated the usefulness of the CAS, particularly its Successive and Simultaneous scales, as potential early predictor of reading disability. An exploration of the relationship between patterns of CAS cognitive processes and later reading proficiency also yielded encouraging and interesting results.
- Full Text:
- Date Issued: 2008
A framework for m-voting implementation in South Africa
- Authors: Mpekoa, Noluntu
- Date: 2017
- Subjects: Electronic voting -- South Africa Voting -- Technological innovations , Voting-machines -- South Africa -- Reliability Elections -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19662 , vital:28927
- Description: Voting enables certain formal decisions to be made through the participation of a given population; and it is the vital part of a democratic process. The method of voting used in South Africa (SA) today is derived from the Australian ballot system. This paper-based voting system, however, is slow, convoluted and inaccurate because of human errors; it is costly and largely inefficient. In the early 1900s, election officials overwhelmingly decided to use electronic voting (E-voting) systems to solve some of the problematic issues of paper-based voting systems. Mobile voting (M-voting) is a subset of E-voting; and it allows citizens to use their mobile phones to cast their votes. Very few countries have endeavoured to implement M-voting, in order to improve mobility and simplify the election procedures. Despite several M-voting initiatives reported worldwide; insufficient attention has been devoted to understanding the factors that influence the success or failure of M-voting implementation. It is also important to note that the implementation of M-voting may be very difficult; if the different modalities that aid successful M-voting implementation are not in place. This study seeks to develop a framework that has the potential to enable the successful implementation of M-voting in SA. The proposed framework is an IT artefact that endeavors to improve human experiences for voting. This study followed a Design-Science approach; and it made use of a case study to collect the data via a literature review, observations, questionnaires, focus groups and expert reviews. The study revealed that there is no institutional, legal and regulatory framework for the proliferation of M-voting in SA. Successful M-voting implementation depends on a compendium of factors, which may be unique in the local context where it is implemented. The framework that resulted from the above was assessed for validity and applicability; after which a modified framework was presented. The research concludes with specific implementation guidelines, as well as areas for future research.
- Full Text:
- Date Issued: 2017
- Authors: Mpekoa, Noluntu
- Date: 2017
- Subjects: Electronic voting -- South Africa Voting -- Technological innovations , Voting-machines -- South Africa -- Reliability Elections -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/19662 , vital:28927
- Description: Voting enables certain formal decisions to be made through the participation of a given population; and it is the vital part of a democratic process. The method of voting used in South Africa (SA) today is derived from the Australian ballot system. This paper-based voting system, however, is slow, convoluted and inaccurate because of human errors; it is costly and largely inefficient. In the early 1900s, election officials overwhelmingly decided to use electronic voting (E-voting) systems to solve some of the problematic issues of paper-based voting systems. Mobile voting (M-voting) is a subset of E-voting; and it allows citizens to use their mobile phones to cast their votes. Very few countries have endeavoured to implement M-voting, in order to improve mobility and simplify the election procedures. Despite several M-voting initiatives reported worldwide; insufficient attention has been devoted to understanding the factors that influence the success or failure of M-voting implementation. It is also important to note that the implementation of M-voting may be very difficult; if the different modalities that aid successful M-voting implementation are not in place. This study seeks to develop a framework that has the potential to enable the successful implementation of M-voting in SA. The proposed framework is an IT artefact that endeavors to improve human experiences for voting. This study followed a Design-Science approach; and it made use of a case study to collect the data via a literature review, observations, questionnaires, focus groups and expert reviews. The study revealed that there is no institutional, legal and regulatory framework for the proliferation of M-voting in SA. Successful M-voting implementation depends on a compendium of factors, which may be unique in the local context where it is implemented. The framework that resulted from the above was assessed for validity and applicability; after which a modified framework was presented. The research concludes with specific implementation guidelines, as well as areas for future research.
- Full Text:
- Date Issued: 2017
Exploring the construct-related validity of the personal-social subscale of the Griffiths Mental Development Scales-extended revised (GMDS-ER)
- Authors: Moosajee, Shaheda
- Date: 2007
- Subjects: Psychological tests for children , Griffiths Scales of Mental Development
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9934 , http://hdl.handle.net/10948/572 , http://hdl.handle.net/10948/d1011708 , Psychological tests for children , Griffiths Scales of Mental Development
- Description: Child assessment has become imperative today as parents and teachers recognize the need for early diagnostic assessments to adequately cater for children’s’ diverse and growing needs so that children can benefit from services and attention in a psychological or educational setting. The Griffiths Mental Development Scales, an established and well-researched instrument is reported to be one of the most carefully designed measures of child development . Studies in various parts of the world have demonstrated that the Griffiths Scales are applicable to diverse populations and that they tap experiences that are common to different cultures. The recent revision and restandardisation of the Griffiths Mental Developmental Scales-Extended Revised (GMDS-ER) has necessitated investigations into its psychometric properties. In view of the important role that assessment measures play in the early identification of developmental delays, it is important that assessment measures are reliable and valid for their intended purpose(s). This study, which is part of a larger research project, attempted to explore and add further evidence of the construct validity of one of the six Subscales of the GMDS-ER, namely the Personal-Social Subscale (Subscale B). An exploratory-descriptive design using a triangulation approach was utilized to explore the construct validity of the Personal-Social Subscale. A nonprobability purposively selected sample of 18 experts working with children participated in the facet analysis to identify the constructs underlying Subscale B (the qualitative aspect of the study). The sample for the quantitative aspects of this study (i.e., the empirical validation of the identified constructs) was collected as part of the broader restandardisation and represented a stratified random sample of 1026 children between the ages of 3 and 8 years from across the United Kingdom and Eire. Three measures, namely a biographical questionnaire, the GMDS-ER and a construct evaluation form were used to gather the qualitative and quantitative data. The qualitative data was analysed by means of facet analysis and literature control. The quantitative data was analysed by using exploratory common factor analysis using oblique (DQUART) rotation to empirically verify the qualitatively identified construct model by specifying a onefactor solution for each underlying construct.
- Full Text:
- Date Issued: 2007
- Authors: Moosajee, Shaheda
- Date: 2007
- Subjects: Psychological tests for children , Griffiths Scales of Mental Development
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:9934 , http://hdl.handle.net/10948/572 , http://hdl.handle.net/10948/d1011708 , Psychological tests for children , Griffiths Scales of Mental Development
- Description: Child assessment has become imperative today as parents and teachers recognize the need for early diagnostic assessments to adequately cater for children’s’ diverse and growing needs so that children can benefit from services and attention in a psychological or educational setting. The Griffiths Mental Development Scales, an established and well-researched instrument is reported to be one of the most carefully designed measures of child development . Studies in various parts of the world have demonstrated that the Griffiths Scales are applicable to diverse populations and that they tap experiences that are common to different cultures. The recent revision and restandardisation of the Griffiths Mental Developmental Scales-Extended Revised (GMDS-ER) has necessitated investigations into its psychometric properties. In view of the important role that assessment measures play in the early identification of developmental delays, it is important that assessment measures are reliable and valid for their intended purpose(s). This study, which is part of a larger research project, attempted to explore and add further evidence of the construct validity of one of the six Subscales of the GMDS-ER, namely the Personal-Social Subscale (Subscale B). An exploratory-descriptive design using a triangulation approach was utilized to explore the construct validity of the Personal-Social Subscale. A nonprobability purposively selected sample of 18 experts working with children participated in the facet analysis to identify the constructs underlying Subscale B (the qualitative aspect of the study). The sample for the quantitative aspects of this study (i.e., the empirical validation of the identified constructs) was collected as part of the broader restandardisation and represented a stratified random sample of 1026 children between the ages of 3 and 8 years from across the United Kingdom and Eire. Three measures, namely a biographical questionnaire, the GMDS-ER and a construct evaluation form were used to gather the qualitative and quantitative data. The qualitative data was analysed by means of facet analysis and literature control. The quantitative data was analysed by using exploratory common factor analysis using oblique (DQUART) rotation to empirically verify the qualitatively identified construct model by specifying a onefactor solution for each underlying construct.
- Full Text:
- Date Issued: 2007
Assemblage dynamics of larval fishes associated with various shallow water nursery habitats in Algoa Bay, South Africa
- Authors: Pattrick, Paula
- Date: 2013
- Subjects: Spawning -- South Africa -- Algoa Bay , Fishes -- Larvae -- South Africa -- Algoa Bay
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10727 , http://hdl.handle.net/10948/d1021042
- Description: The success of the larval stage in fishes plays a critical role in structuring adult fish populations. It is well understood that juveniles of many marine fish species are closely associated with nearshore and coastal habitats that serve as nursery areas while adult assemblages are more widely distributed. The larval phase however, particularly pertaining to nursery habitat use, remains poorly understood in South Africa. A mixed-method, larval and juvenile fish study was conducted in the warm-temperate shallow coastal waters of Algoa Bay, South Africa. Two years (2010 – 2012) of seasonal sampling at 27 stations at various habitat types revealed distinct spatio-temporal patterns in larval fish composition and abundance. In total, 164 species from 50 families were collected in the nearshore (<30 m), over reef and sand, in the surf zone and large estuarine habitats in Algoa Bay. Engraulidae dominated the larval fish catch in the nearshore (38.4 percent) and over the selected reef and sand habitats (37.8 percent). Cynoglossidae (28.1 percent) and Sparidae (8.4 percent) were the second and third most abundant fish families in the nearshore. In subtidal reef and sand habitats, Gobiidae (23.4 percent) and Clupeidae (9.2 percent) were the second and third most abundant families respectively. Sparidae dominated (71.4 percent) surf zones followed by Soleidae (10.8 percent) and Mugilidae (5.3 percent), while in the mouth area of two permanently open estuaries in Algoa Bay, Gobiidae (35.9 percent) Sparidae (30.1 percent) and Mugilidae (12.4 percent) dominated. Several species from the Blenniidae, Gobiesocidae, Gobiidae, Scorpaenidae and Tripterygiidae fish families complete their pelagic larval phase in the reef habitats in Algoa Bay. These reef habitats therefore serve as important nursery areas for the larvae of benthic species. The sand and nearshore habitats serve as nursery areas for Clupeidae and Engraulidae. Highest densities of Carangidae, Sciaenidae and Sparidae larvae were observed at the subtidal reef habitats indicating that this area is important for accumulation of the early developmental stages of these fishes. The nearshore serves as an important accumulation habitat for species in the Haemulidae and Soleidae families whose juveniles are known to recruit into estuarine nursery areas. The nearshore therefore is a specific area of presettlement buildup of larvae prior to settlement of larvae or juveniles in estuarine nursery areas. Cynoglossidae larvae are also using the nearshore as an accumulation area prior to settlement and recruitment into adult populations occurring in shallow water habitats. In the surf zone, not only are estuary-dependent fish species utilizing this habitat as a nursery area, but marinespecies whose adults are either associated with rocky shores or surf zones are similarly using these areas as nursery habitats. In addition, estuary-dependent fish species which spawn in the marine environment are actively recruiting into estuarine nursery areas on both tides. Active recruitment against the outgoing ebb tide flow was a conclusive finding in this study. These larvae and juveniles are actively swimming against the ebb tide in the shallower, slower-flowing marginal areas where current flow is reduced. Strong environmental gradients on multiple temporal and spatial scales occur in Algoa Bay. Seasonal patterns were evident in larval densities, richness and diversity. Peaks in density, richness and diversity occurred during spring and summer (September to February) associated with increasing water temperatures and a high productivity providing a good food environment for larval fishes. Thereafter densities declined steadily as a result of natural mortality, settlement or adult spawning activity, until autumn when numbers dropped suddenly as the surviving larvae moved to settlement habitats. The relationship between larval fish and environmental variables provides information useful to determine distributions. Therefore the Bay is particularly suited for modelling larval fish distributions. Using generalized linear models, larval fish density in the nearshore of Algoa Bay responded to different ocean features to varying degrees. Larval fish density responded positively to both upwelling and when warm water plumes, originating from an Agulhas Current meander, entered Algoa Bay. On subtidal reefs, habitat complexity played an important role in determining larval fish composition and diversity. The less structurally complex, reefassociated sand habitats, yielded higher species richness and diversity than the high and low profile reef habitats. Therefore, it is likely that the importance of less structurally complex habitats has been overlooked relative to other habitats in terms of their function for larval fishes. In the surf zone, wave period and wave height, which can be related to exposure, were the most significant environmental factors influencing larval fish assemblages. Greatest species diversity was observed in the surf zone habitats heavily influenced by wave action in the windward sector of Algoa Bay. The identification of spawning areas and the mapping of distributions of early developmental stages of fishes are important in providing data pertaining to the protection of these habitats. This is particularly relevant as a new marine protected area MPA)is planned for the eastern sector of Algoa Bay. Results from retrogressive plots indicate that the spawning locations of several species of coastal and pelagic fishes are occurring outside of the Bay, with the bay therefore serving as an accumulation area. Furthermore, distribution modelling results demonstrate that the early developmental stages of fishes in the shallow coastal habitats of Algoa Bay exhibit high spatial variability in their distributions. Results presented in this thesis help fill the knowledge gaps critical to the understanding of larval fish nursery areas of several economically and ecologically important fish species in Algoa Bay.
- Full Text:
- Date Issued: 2013
- Authors: Pattrick, Paula
- Date: 2013
- Subjects: Spawning -- South Africa -- Algoa Bay , Fishes -- Larvae -- South Africa -- Algoa Bay
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10727 , http://hdl.handle.net/10948/d1021042
- Description: The success of the larval stage in fishes plays a critical role in structuring adult fish populations. It is well understood that juveniles of many marine fish species are closely associated with nearshore and coastal habitats that serve as nursery areas while adult assemblages are more widely distributed. The larval phase however, particularly pertaining to nursery habitat use, remains poorly understood in South Africa. A mixed-method, larval and juvenile fish study was conducted in the warm-temperate shallow coastal waters of Algoa Bay, South Africa. Two years (2010 – 2012) of seasonal sampling at 27 stations at various habitat types revealed distinct spatio-temporal patterns in larval fish composition and abundance. In total, 164 species from 50 families were collected in the nearshore (<30 m), over reef and sand, in the surf zone and large estuarine habitats in Algoa Bay. Engraulidae dominated the larval fish catch in the nearshore (38.4 percent) and over the selected reef and sand habitats (37.8 percent). Cynoglossidae (28.1 percent) and Sparidae (8.4 percent) were the second and third most abundant fish families in the nearshore. In subtidal reef and sand habitats, Gobiidae (23.4 percent) and Clupeidae (9.2 percent) were the second and third most abundant families respectively. Sparidae dominated (71.4 percent) surf zones followed by Soleidae (10.8 percent) and Mugilidae (5.3 percent), while in the mouth area of two permanently open estuaries in Algoa Bay, Gobiidae (35.9 percent) Sparidae (30.1 percent) and Mugilidae (12.4 percent) dominated. Several species from the Blenniidae, Gobiesocidae, Gobiidae, Scorpaenidae and Tripterygiidae fish families complete their pelagic larval phase in the reef habitats in Algoa Bay. These reef habitats therefore serve as important nursery areas for the larvae of benthic species. The sand and nearshore habitats serve as nursery areas for Clupeidae and Engraulidae. Highest densities of Carangidae, Sciaenidae and Sparidae larvae were observed at the subtidal reef habitats indicating that this area is important for accumulation of the early developmental stages of these fishes. The nearshore serves as an important accumulation habitat for species in the Haemulidae and Soleidae families whose juveniles are known to recruit into estuarine nursery areas. The nearshore therefore is a specific area of presettlement buildup of larvae prior to settlement of larvae or juveniles in estuarine nursery areas. Cynoglossidae larvae are also using the nearshore as an accumulation area prior to settlement and recruitment into adult populations occurring in shallow water habitats. In the surf zone, not only are estuary-dependent fish species utilizing this habitat as a nursery area, but marinespecies whose adults are either associated with rocky shores or surf zones are similarly using these areas as nursery habitats. In addition, estuary-dependent fish species which spawn in the marine environment are actively recruiting into estuarine nursery areas on both tides. Active recruitment against the outgoing ebb tide flow was a conclusive finding in this study. These larvae and juveniles are actively swimming against the ebb tide in the shallower, slower-flowing marginal areas where current flow is reduced. Strong environmental gradients on multiple temporal and spatial scales occur in Algoa Bay. Seasonal patterns were evident in larval densities, richness and diversity. Peaks in density, richness and diversity occurred during spring and summer (September to February) associated with increasing water temperatures and a high productivity providing a good food environment for larval fishes. Thereafter densities declined steadily as a result of natural mortality, settlement or adult spawning activity, until autumn when numbers dropped suddenly as the surviving larvae moved to settlement habitats. The relationship between larval fish and environmental variables provides information useful to determine distributions. Therefore the Bay is particularly suited for modelling larval fish distributions. Using generalized linear models, larval fish density in the nearshore of Algoa Bay responded to different ocean features to varying degrees. Larval fish density responded positively to both upwelling and when warm water plumes, originating from an Agulhas Current meander, entered Algoa Bay. On subtidal reefs, habitat complexity played an important role in determining larval fish composition and diversity. The less structurally complex, reefassociated sand habitats, yielded higher species richness and diversity than the high and low profile reef habitats. Therefore, it is likely that the importance of less structurally complex habitats has been overlooked relative to other habitats in terms of their function for larval fishes. In the surf zone, wave period and wave height, which can be related to exposure, were the most significant environmental factors influencing larval fish assemblages. Greatest species diversity was observed in the surf zone habitats heavily influenced by wave action in the windward sector of Algoa Bay. The identification of spawning areas and the mapping of distributions of early developmental stages of fishes are important in providing data pertaining to the protection of these habitats. This is particularly relevant as a new marine protected area MPA)is planned for the eastern sector of Algoa Bay. Results from retrogressive plots indicate that the spawning locations of several species of coastal and pelagic fishes are occurring outside of the Bay, with the bay therefore serving as an accumulation area. Furthermore, distribution modelling results demonstrate that the early developmental stages of fishes in the shallow coastal habitats of Algoa Bay exhibit high spatial variability in their distributions. Results presented in this thesis help fill the knowledge gaps critical to the understanding of larval fish nursery areas of several economically and ecologically important fish species in Algoa Bay.
- Full Text:
- Date Issued: 2013
A historic-hermeneutic critique of luthiery with specific reference to selected South African guiter builders
- Authors: Bower, Rudi
- Date: 2008
- Subjects: Guitar -- Construction , Guitar -- History
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8512 , http://hdl.handle.net/10948/779 , Guitar -- Construction , Guitar -- History
- Description: This study uses a general historical overview of luthiery that provides the reader with a basic understanding of construction techniques and terminology as a point of departure. From the outset the lack of consensus over an ideal or desired construction technique is highlighted. However, Torres is credited with the establishing of a perceived Spanish tradition of guitar construction and acknowledged as the “father” of the modern guitar. This will serve as a basic framework in which a discussion of six prominent past and present international luthiers can occur. These luthiers, namely Antonio de Torres, Hermann Hauser, Robert Bouchet, Daniel Friederich, Jose Romanillos and Greg Smallman are included in this study by virtue of their influence on the South African luthiers that are featured here. It is noted that these six luthiers, with the exception of Greg Smallman, all adhere to the “Spanish tradition” of guitar construction. Smallman can be considered a foremost proponent of a more recent “modern” school of guitar construction characterized by various innovative construction techniques. These are a result of new demands placed on the guitar as performance instrument because of larger concert venues and more collaboration with different instruments, resulting in a need for a stronger tone and more projection and penetration in sound. These two “poles” of luthiery are then manifested in the discussion on the seven featured South African luthiers. Alistair Thompson, Colin Cleveland, Mervyn Davis, Garth Pickard, Marc Maingard, Rodney Stedall and Hans van den Berg are discussed with special mention made of the features of their instruments, woods used and thoughts on luthiery, against the backdrop of their biographies. The four South African luthiers who build within the “Spanish tradition” (Pickard, Maingard, Stedall and Van den Berg) are distinguished from the three who build outside this so-called tradition (Thompson, Cleveland, Davis). South African luthiery is therefore shown to be an accurate microcosm of luthiery in global terms with styles of construction ranging from very “traditional” to very “modern”. The critical reflection on the information contained in this study appears in the form of a hermeneutic critique on luthiery that occurs within the parameters of the thought of two prominent hermeneutic thinkers, Martin Heidegger and his student, Hans-Georg Gadamer. It is shown that the collaboration that often occurs between guitar makers and performers can be related back to Gadamer and his analysis of Heidegger’s notion of the the hermeneutic circle. It is also argued that luthiery as practiced by the international and South African luthiers featured in this study can be seen both as art and technology in ancient Greek terms in that they are both a mode of revealing. Finally, it is shown how luthiery in its entirety can be viewed as a tradition and that different luthiers respond and add to this tradition in various ways.
- Full Text:
- Date Issued: 2008
- Authors: Bower, Rudi
- Date: 2008
- Subjects: Guitar -- Construction , Guitar -- History
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:8512 , http://hdl.handle.net/10948/779 , Guitar -- Construction , Guitar -- History
- Description: This study uses a general historical overview of luthiery that provides the reader with a basic understanding of construction techniques and terminology as a point of departure. From the outset the lack of consensus over an ideal or desired construction technique is highlighted. However, Torres is credited with the establishing of a perceived Spanish tradition of guitar construction and acknowledged as the “father” of the modern guitar. This will serve as a basic framework in which a discussion of six prominent past and present international luthiers can occur. These luthiers, namely Antonio de Torres, Hermann Hauser, Robert Bouchet, Daniel Friederich, Jose Romanillos and Greg Smallman are included in this study by virtue of their influence on the South African luthiers that are featured here. It is noted that these six luthiers, with the exception of Greg Smallman, all adhere to the “Spanish tradition” of guitar construction. Smallman can be considered a foremost proponent of a more recent “modern” school of guitar construction characterized by various innovative construction techniques. These are a result of new demands placed on the guitar as performance instrument because of larger concert venues and more collaboration with different instruments, resulting in a need for a stronger tone and more projection and penetration in sound. These two “poles” of luthiery are then manifested in the discussion on the seven featured South African luthiers. Alistair Thompson, Colin Cleveland, Mervyn Davis, Garth Pickard, Marc Maingard, Rodney Stedall and Hans van den Berg are discussed with special mention made of the features of their instruments, woods used and thoughts on luthiery, against the backdrop of their biographies. The four South African luthiers who build within the “Spanish tradition” (Pickard, Maingard, Stedall and Van den Berg) are distinguished from the three who build outside this so-called tradition (Thompson, Cleveland, Davis). South African luthiery is therefore shown to be an accurate microcosm of luthiery in global terms with styles of construction ranging from very “traditional” to very “modern”. The critical reflection on the information contained in this study appears in the form of a hermeneutic critique on luthiery that occurs within the parameters of the thought of two prominent hermeneutic thinkers, Martin Heidegger and his student, Hans-Georg Gadamer. It is shown that the collaboration that often occurs between guitar makers and performers can be related back to Gadamer and his analysis of Heidegger’s notion of the the hermeneutic circle. It is also argued that luthiery as practiced by the international and South African luthiers featured in this study can be seen both as art and technology in ancient Greek terms in that they are both a mode of revealing. Finally, it is shown how luthiery in its entirety can be viewed as a tradition and that different luthiers respond and add to this tradition in various ways.
- Full Text:
- Date Issued: 2008
Management of material waste and cost overrun in the Nigerian construction industry
- Authors: Saidu, Ibrahim
- Date: 2016
- Subjects: Construction industry -- Materials management -- Nigeria , Construction industry -- Nigeria -- Management
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/3792 , vital:20463
- Description: While wastage of materials has become a serious problem requiring urgent attention in the Nigerian Construction Industry, cost overrun is a problem, which affects 90 percent of the completed projects in the world; the argument on how to reduce/eliminate cost overrun has been on-going for the past 70 years; as the on-site wastage of materials leads to increases in the final project cost. Studies from different parts of the world have shown that construction-material waste represents a relatively large percentage of the production costs. Consequently, as a result of low levels of awareness, the Nigerian construction industry pays little attention to the effects of generated material waste on cost overruns. Thus, this research aimed to investigate the relationship between material waste and cost overrun in the Nigerian construction industry. A comprehensive review of the related literature revealed that all material waste causes are related to cost overrun causes at both pre-contract and post-contract stages of a project; but not vice versa. The mixed method (quantitative and qualitative) approach that is rooted in the positivist paradigm was adopted for this study. Abuja, the federal capital territory of Nigeria was the selected geographical scope of this research, out of which thirty-one (31) construction projects were purposeful selected (projects to the value of 100 million Rand/1.6 billion Naira and above).The research instrument was an interview guide used in conjunction with a tick box. Other sources of data included field investigation (measurement of onsite material waste) and the collection of archival records from bills of quantities, project records, and specifications. Analyses of the findings lead to the conclusion that a relationship exists between material waste and cost overrun; at the pre-contract and at the post-contract stages of a project. The implication is that an increase in material wastage on-site leads to a corresponding increase in the amount of cost overrun, regardless of the percentage allowance for material waste in the process of bill preparation. The study also concluded that the average percentage contribution of material waste to project-cost overruns is four (4) percent. Material-waste sources, causes, and control measures were found to have significant effects (very high, high, medium, low, and very low), in causing or minimising cost overruns at both pre-contract and post-contract stages of projects. The research has developed a conceptual model for the management of material waste and cost overruns in the construction industry based on the results and informed by the theoretical framework. The research has also developed a mathematical model for quantifying the amount of material waste to be generated by a project; as well as a mathematical equation for the effective management of material waste and cost overrun for projects. The study has achieved its aim of establishing an understanding of the issues leading to the relationship between material waste and cost overruns, as well as their management in the Nigerian construction industry. The study recommends that the management of material waste and cost overrun should be revised, based on the findings of this research and included as part of the procurement process. The mathematical models for quantification of onsite material waste, and the mathematical equation for managing material waste and cost overruns developed in the study, could be usefully adopted to improve management of material waste and cost overrun in the Nigerian construction industry.
- Full Text:
- Date Issued: 2016
- Authors: Saidu, Ibrahim
- Date: 2016
- Subjects: Construction industry -- Materials management -- Nigeria , Construction industry -- Nigeria -- Management
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: http://hdl.handle.net/10948/3792 , vital:20463
- Description: While wastage of materials has become a serious problem requiring urgent attention in the Nigerian Construction Industry, cost overrun is a problem, which affects 90 percent of the completed projects in the world; the argument on how to reduce/eliminate cost overrun has been on-going for the past 70 years; as the on-site wastage of materials leads to increases in the final project cost. Studies from different parts of the world have shown that construction-material waste represents a relatively large percentage of the production costs. Consequently, as a result of low levels of awareness, the Nigerian construction industry pays little attention to the effects of generated material waste on cost overruns. Thus, this research aimed to investigate the relationship between material waste and cost overrun in the Nigerian construction industry. A comprehensive review of the related literature revealed that all material waste causes are related to cost overrun causes at both pre-contract and post-contract stages of a project; but not vice versa. The mixed method (quantitative and qualitative) approach that is rooted in the positivist paradigm was adopted for this study. Abuja, the federal capital territory of Nigeria was the selected geographical scope of this research, out of which thirty-one (31) construction projects were purposeful selected (projects to the value of 100 million Rand/1.6 billion Naira and above).The research instrument was an interview guide used in conjunction with a tick box. Other sources of data included field investigation (measurement of onsite material waste) and the collection of archival records from bills of quantities, project records, and specifications. Analyses of the findings lead to the conclusion that a relationship exists between material waste and cost overrun; at the pre-contract and at the post-contract stages of a project. The implication is that an increase in material wastage on-site leads to a corresponding increase in the amount of cost overrun, regardless of the percentage allowance for material waste in the process of bill preparation. The study also concluded that the average percentage contribution of material waste to project-cost overruns is four (4) percent. Material-waste sources, causes, and control measures were found to have significant effects (very high, high, medium, low, and very low), in causing or minimising cost overruns at both pre-contract and post-contract stages of projects. The research has developed a conceptual model for the management of material waste and cost overruns in the construction industry based on the results and informed by the theoretical framework. The research has also developed a mathematical model for quantifying the amount of material waste to be generated by a project; as well as a mathematical equation for the effective management of material waste and cost overrun for projects. The study has achieved its aim of establishing an understanding of the issues leading to the relationship between material waste and cost overruns, as well as their management in the Nigerian construction industry. The study recommends that the management of material waste and cost overrun should be revised, based on the findings of this research and included as part of the procurement process. The mathematical models for quantification of onsite material waste, and the mathematical equation for managing material waste and cost overruns developed in the study, could be usefully adopted to improve management of material waste and cost overrun in the Nigerian construction industry.
- Full Text:
- Date Issued: 2016
Towards theorizing human resource development in South Africa: a critical analysis and the development of a tool to facilitate improved understanding and practice
- Authors: Anderson, Amber Cristal
- Date: 2006
- Subjects: Manpower planning -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:16130 , http://hdl.handle.net/10948/469 , Manpower planning -- South Africa
- Description: The primary objective of this study is to generate pathways to understanding Human Resources Development (HRD) by developing a tool which enables and enhances a shared and common understanding of HRD in South Africa (SA). To achieve this objective, this research explores the nature and importance of HRD and articulates and aggregates these thoughts and practices into a tool which facilitates an understanding of HRD with the overarching aim of improving HRD thoughts and practices in South Africa. While there is substantial international and local literature on HRD, the existing body of research on the nature and importance of HRD in South Africa is skeletal. National HRD concepts and practices are fragmented, and are as diverse as the number of stakeholders and partners that it serves. In addition, theory-building in HRD is disconnected and removed from practice. In order to address this problem, a qualitative, interpretive, theory-building social constructionist research strategy was embarked upon. The research strategy was executed in an iterative, cyclical manner, using theoretical sampling and content analysis rigorously executed within a coding paradigm informed by open, axial and selective coding techniques with local and international literature and informal reviews as the units of analysis. Qualitative and quantitative findings of the South African Qualifications Authority ground-breaking, world-first longitudinal study was analyzed and used to find relevance and corroborate the international literature available on HRD. Informal reviews were conducted with 7 human resources (HR) practitioners and 54 internationally-based HR colleagues of the researcher in order to ensure as appropriate a degree of integration between theory and practice as was possible. This process culminated in the most significant contribution of this research, which is a tool consisting of six pathways, that facilitates an understanding of the nature and importance of HRD in South Africa. The development of the tool enabled the articulation and aggregation of a thorough and coherent description, explanation and representation of HRD. The research highlights the need for HRD scholars and practitioners to channel their energies and effort on all the catalytic aspects of organizational life, namely uniqueness, social complexity, knowledge, and path dependency, by acquiring critical insight into the profound value of HRD which will allow the realization and sustainability of competitive advantage in a rich and dynamic global economy.
- Full Text:
- Date Issued: 2006
- Authors: Anderson, Amber Cristal
- Date: 2006
- Subjects: Manpower planning -- South Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:16130 , http://hdl.handle.net/10948/469 , Manpower planning -- South Africa
- Description: The primary objective of this study is to generate pathways to understanding Human Resources Development (HRD) by developing a tool which enables and enhances a shared and common understanding of HRD in South Africa (SA). To achieve this objective, this research explores the nature and importance of HRD and articulates and aggregates these thoughts and practices into a tool which facilitates an understanding of HRD with the overarching aim of improving HRD thoughts and practices in South Africa. While there is substantial international and local literature on HRD, the existing body of research on the nature and importance of HRD in South Africa is skeletal. National HRD concepts and practices are fragmented, and are as diverse as the number of stakeholders and partners that it serves. In addition, theory-building in HRD is disconnected and removed from practice. In order to address this problem, a qualitative, interpretive, theory-building social constructionist research strategy was embarked upon. The research strategy was executed in an iterative, cyclical manner, using theoretical sampling and content analysis rigorously executed within a coding paradigm informed by open, axial and selective coding techniques with local and international literature and informal reviews as the units of analysis. Qualitative and quantitative findings of the South African Qualifications Authority ground-breaking, world-first longitudinal study was analyzed and used to find relevance and corroborate the international literature available on HRD. Informal reviews were conducted with 7 human resources (HR) practitioners and 54 internationally-based HR colleagues of the researcher in order to ensure as appropriate a degree of integration between theory and practice as was possible. This process culminated in the most significant contribution of this research, which is a tool consisting of six pathways, that facilitates an understanding of the nature and importance of HRD in South Africa. The development of the tool enabled the articulation and aggregation of a thorough and coherent description, explanation and representation of HRD. The research highlights the need for HRD scholars and practitioners to channel their energies and effort on all the catalytic aspects of organizational life, namely uniqueness, social complexity, knowledge, and path dependency, by acquiring critical insight into the profound value of HRD which will allow the realization and sustainability of competitive advantage in a rich and dynamic global economy.
- Full Text:
- Date Issued: 2006