In a town called Harmony
- Authors: Tsibolane, Pitso
- Date: 2015
- Subjects: South African fiction (English) -- 21st century , Creative writing (Higher education) , South African fiction (English) -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5995 , http://hdl.handle.net/10962/d1017779
- Description: A novella of crime and suspense set in the townships surrounding the mining town of Welkom Two friends, both ex-miners, start a welding business only to see it fail because of interference by corrupt officials To make ends meet, they are drawn into the world of illegal gold-mining, working with criminals who employ ‘zama-zamas’: desperate foreign nationals who are prepared to live and work in the abandoned mine tunnels underground The friends make money, but the dark practices of illegal mining put a strain on their relationship, their values, and their family ties.
- Full Text:
- Date Issued: 2015
- Authors: Tsibolane, Pitso
- Date: 2015
- Subjects: South African fiction (English) -- 21st century , Creative writing (Higher education) , South African fiction (English) -- Study and teaching (Higher)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:5995 , http://hdl.handle.net/10962/d1017779
- Description: A novella of crime and suspense set in the townships surrounding the mining town of Welkom Two friends, both ex-miners, start a welding business only to see it fail because of interference by corrupt officials To make ends meet, they are drawn into the world of illegal gold-mining, working with criminals who employ ‘zama-zamas’: desperate foreign nationals who are prepared to live and work in the abandoned mine tunnels underground The friends make money, but the dark practices of illegal mining put a strain on their relationship, their values, and their family ties.
- Full Text:
- Date Issued: 2015
Sustainability of agricultural cooperatives in Emalahleni Local Municipality
- Authors: Tsholoba, Nokulunga
- Date: 2015
- Subjects: Agriculture, Cooperative -- South Africa -- Mpumalanga , Sustainable development -- South Africa -- Mpumalanga
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/4133 , vital:20555
- Description: Long term growth and sustainability of cooperatives has become the focus of many countries worldwide. Cooperatives have been seen as the platform for uplifting disadvantaged communities while improving standards of the poor in countries such as Canada, Kenya, Ghana and Nigeria (Department of Trade and Industry, 2012). In South Africa, cooperatives are seen as playing a role in poverty eradication, equal distribution of wealth, employment creation, food security and as a contributor to the economic activity. The South African government have implemented policies aimed at improving the performance and sustainability of agriculture cooperatives in South Africa. Despite all the efforts cooperatives still face sustainability challenges. Therefore the purpose of this research was to investigate the sustainability challenges that prevent the permanent establishment of cooperatives and to understand the dynamics and nature of failure associated with agricultural cooperatives .A case study methodology was used to examine a single case in-depth and to understand the factors affecting agricultural cooperatives. The main challenges identified in the study include; poor communication, limited access to markets, access to finance, a lack of good governance and a lack of managerial skills. The study recommended capacity building as the first point of reference in order to deal with challenges such as communication, access to markets and a lack of managerial skills. A lack of good governance is regarded as an attitude problem which requires setting ethical standards and rules accompanied by a penalty to the member if they are found to be breaking the rules. Access to finances is regarded as a skills and competence phenomenon which requires people to develop planning and financial literacy skills, which will enable them to formulate business plans and use them as a control tool for managing the cooperative. The business plan is also regarded as an asset or security document which acts as a proof that the cooperative is well planned, organised and sustainable. The research concludes with suggesting areas for future study to investigate the impact of informal education practices on skills development in the success of cooperatives.
- Full Text:
- Date Issued: 2015
- Authors: Tsholoba, Nokulunga
- Date: 2015
- Subjects: Agriculture, Cooperative -- South Africa -- Mpumalanga , Sustainable development -- South Africa -- Mpumalanga
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/4133 , vital:20555
- Description: Long term growth and sustainability of cooperatives has become the focus of many countries worldwide. Cooperatives have been seen as the platform for uplifting disadvantaged communities while improving standards of the poor in countries such as Canada, Kenya, Ghana and Nigeria (Department of Trade and Industry, 2012). In South Africa, cooperatives are seen as playing a role in poverty eradication, equal distribution of wealth, employment creation, food security and as a contributor to the economic activity. The South African government have implemented policies aimed at improving the performance and sustainability of agriculture cooperatives in South Africa. Despite all the efforts cooperatives still face sustainability challenges. Therefore the purpose of this research was to investigate the sustainability challenges that prevent the permanent establishment of cooperatives and to understand the dynamics and nature of failure associated with agricultural cooperatives .A case study methodology was used to examine a single case in-depth and to understand the factors affecting agricultural cooperatives. The main challenges identified in the study include; poor communication, limited access to markets, access to finance, a lack of good governance and a lack of managerial skills. The study recommended capacity building as the first point of reference in order to deal with challenges such as communication, access to markets and a lack of managerial skills. A lack of good governance is regarded as an attitude problem which requires setting ethical standards and rules accompanied by a penalty to the member if they are found to be breaking the rules. Access to finances is regarded as a skills and competence phenomenon which requires people to develop planning and financial literacy skills, which will enable them to formulate business plans and use them as a control tool for managing the cooperative. The business plan is also regarded as an asset or security document which acts as a proof that the cooperative is well planned, organised and sustainable. The research concludes with suggesting areas for future study to investigate the impact of informal education practices on skills development in the success of cooperatives.
- Full Text:
- Date Issued: 2015
Unfair labour practice relating to promotion in the public education sector
- Authors: Tsheko, Toto
- Date: 2015
- Subjects: Unfair labor practices , Mediation
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/6050 , vital:21034
- Description: This topic deals with unfair labour practice relating to promotion and will focus mainly on the public education sector. The Labour Relations Act of 1956 and 1995, with respect to the concept of unfair labour practice, will be analysed. It is through this discussion that one appreciates how the concept of unfair labour practices has evolved in South African law. An attempt is made to define promotion and in this regard reference is made to cases decided upon by the Commission for Conciliation, Mediation and Arbitration (CCMA) or the Labour Court (LC). Furthermore, promotion is defined within the context of public education and applicable legislation. Due regard must be to the employment relationship between the employer and the employee as well as compare the current employee’s job with the job applied to. Unfair conduct by the employer will be discussed within the context of promotion. The prerogative of the employer will be discussed with reference to case law and that discussion will include an analysis of various principles with regard to procedural and substantive fairness. Various remedies provided for in dispute resolution mechanism in line with the provisions of the Labour Relations Act 66 of 1995 and relevant case laws will also be discussed. The last chapter deals with how to strike a balance between employee rights (that is educators) and the rights of learners, in the context of promotion disputes. In this regard reference to case laws will be made. In general the topic will deal with unfair labour practice, definition of promotion including promotion of educators, unfair conduct of the employer, onus of proof, remedies and striking the balance between the rights of the learners and educators.
- Full Text:
- Date Issued: 2015
- Authors: Tsheko, Toto
- Date: 2015
- Subjects: Unfair labor practices , Mediation
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: http://hdl.handle.net/10948/6050 , vital:21034
- Description: This topic deals with unfair labour practice relating to promotion and will focus mainly on the public education sector. The Labour Relations Act of 1956 and 1995, with respect to the concept of unfair labour practice, will be analysed. It is through this discussion that one appreciates how the concept of unfair labour practices has evolved in South African law. An attempt is made to define promotion and in this regard reference is made to cases decided upon by the Commission for Conciliation, Mediation and Arbitration (CCMA) or the Labour Court (LC). Furthermore, promotion is defined within the context of public education and applicable legislation. Due regard must be to the employment relationship between the employer and the employee as well as compare the current employee’s job with the job applied to. Unfair conduct by the employer will be discussed within the context of promotion. The prerogative of the employer will be discussed with reference to case law and that discussion will include an analysis of various principles with regard to procedural and substantive fairness. Various remedies provided for in dispute resolution mechanism in line with the provisions of the Labour Relations Act 66 of 1995 and relevant case laws will also be discussed. The last chapter deals with how to strike a balance between employee rights (that is educators) and the rights of learners, in the context of promotion disputes. In this regard reference to case laws will be made. In general the topic will deal with unfair labour practice, definition of promotion including promotion of educators, unfair conduct of the employer, onus of proof, remedies and striking the balance between the rights of the learners and educators.
- Full Text:
- Date Issued: 2015
Photo-physicochemical studies and photodynamic therapy activity of indium and gallium phthalocyanines
- Tshangana, Charmaine Sesethu
- Authors: Tshangana, Charmaine Sesethu
- Date: 2015
- Subjects: Quantum dots , Nanoparticles , Photochemotherapy , Phthalocyanines
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4548 , http://hdl.handle.net/10962/d1017928
- Description: The potential toxicity of seven different types of quantum dots without shell (L-cysteine-CdTe, TGA-CdTe, MPA-CdTe, TGA-CdSe) and with the shell (GSH-CdSe@ZnS, GSH-CdTe@ZnS,) with different capping agents were evaluated. The growth inhibitory effects of the various quantum dots on human pancreatic BON cancerous cells were determined. The least cytotoxic of the various quantum dots synthesized and the one displaying the lowest growth inhibitory potential and no embryotoxicity was determined to be the GSH-CdSe@ZnS quantum dots. The GSH-CdSe@ZnS quantum dots were then conjugated to gallium, aluminium and indium octacarboxy phthalocyanine and the photophysical behaviour of the conjugates studied for potential use in photodynamic therapy and imaging applications. The sizes, morphology, thermal stability and confirmation of successful conjugation was determined using X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR), respectively. The study was extended by conjugating amino functionalized magnetic nanoparticles (Fe₃O₄) to indium octacarboxy phthalocyanine to study the photophysical behaviour of the conjugate as a potential bi-functional anti-cancer agent (hyperthermia and photodynamic therapy applications). A three-in-one multifunctional nanocomposite comprising of the quantum dots, magnetic nanoparticles and indium octacarboxy phthalocyanine was developed with the aim of developing a multifunctional composite that is able detect, monitor and treat cancer. All conjugates showed improved and enhanced photophysical behaviour. Finally, GSH-CdSe@ZnS conjugated to aluminium octacarboxy phthalocyanine was applied in human pancreatic carcinoid BON cells. The conjugates induced cell death dose-dependently.
- Full Text:
- Date Issued: 2015
- Authors: Tshangana, Charmaine Sesethu
- Date: 2015
- Subjects: Quantum dots , Nanoparticles , Photochemotherapy , Phthalocyanines
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4548 , http://hdl.handle.net/10962/d1017928
- Description: The potential toxicity of seven different types of quantum dots without shell (L-cysteine-CdTe, TGA-CdTe, MPA-CdTe, TGA-CdSe) and with the shell (GSH-CdSe@ZnS, GSH-CdTe@ZnS,) with different capping agents were evaluated. The growth inhibitory effects of the various quantum dots on human pancreatic BON cancerous cells were determined. The least cytotoxic of the various quantum dots synthesized and the one displaying the lowest growth inhibitory potential and no embryotoxicity was determined to be the GSH-CdSe@ZnS quantum dots. The GSH-CdSe@ZnS quantum dots were then conjugated to gallium, aluminium and indium octacarboxy phthalocyanine and the photophysical behaviour of the conjugates studied for potential use in photodynamic therapy and imaging applications. The sizes, morphology, thermal stability and confirmation of successful conjugation was determined using X-ray diffraction (XRD), transmission electron microscopy (TEM), thermogravimetric analysis (TGA) and Fourier transform infrared spectroscopy (FTIR), respectively. The study was extended by conjugating amino functionalized magnetic nanoparticles (Fe₃O₄) to indium octacarboxy phthalocyanine to study the photophysical behaviour of the conjugate as a potential bi-functional anti-cancer agent (hyperthermia and photodynamic therapy applications). A three-in-one multifunctional nanocomposite comprising of the quantum dots, magnetic nanoparticles and indium octacarboxy phthalocyanine was developed with the aim of developing a multifunctional composite that is able detect, monitor and treat cancer. All conjugates showed improved and enhanced photophysical behaviour. Finally, GSH-CdSe@ZnS conjugated to aluminium octacarboxy phthalocyanine was applied in human pancreatic carcinoid BON cells. The conjugates induced cell death dose-dependently.
- Full Text:
- Date Issued: 2015
The photophysical properties of multi-functional quantum dots-magnetic nanoparticles—indium octacarboxyphthalocyanine nanocomposite
- Tshangana, Charmaine, Nyokong, Tebello
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/189876 , vital:44942 , xlink:href="https://doi.org/10.1007/s10895-014-1497-6"
- Description: This work presents the development of a multifunctional hybrid nanoparticle made of L-glutathione capped quantum dots (GSH-CdSe@ZnS), amino functionalized Fe3O4 magnetic nanoparticles and indium octacarboxy phthalocyanine (ClInPc(COOH)8). In this work we investigate the photophysical properties of the individual components and the hybrid nanoparticle, in addition we study the energy transfer (Förster Resonance Energy Transfer (FRET)) in the complex. FRET efficiencies of ~48 % were obtained for energy transfer between the QDs (when alone or linked to MNPs). Both triplet yields and lifetimes of ClInPc(COOH)8 increase in the nanocomposite, with a decrease in fluorescence lifetime. The hybrid nanoparticle showed improved photophysical properties and as a result can be used in photodynamic therapy.
- Full Text:
- Date Issued: 2015
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/189876 , vital:44942 , xlink:href="https://doi.org/10.1007/s10895-014-1497-6"
- Description: This work presents the development of a multifunctional hybrid nanoparticle made of L-glutathione capped quantum dots (GSH-CdSe@ZnS), amino functionalized Fe3O4 magnetic nanoparticles and indium octacarboxy phthalocyanine (ClInPc(COOH)8). In this work we investigate the photophysical properties of the individual components and the hybrid nanoparticle, in addition we study the energy transfer (Förster Resonance Energy Transfer (FRET)) in the complex. FRET efficiencies of ~48 % were obtained for energy transfer between the QDs (when alone or linked to MNPs). Both triplet yields and lifetimes of ClInPc(COOH)8 increase in the nanocomposite, with a decrease in fluorescence lifetime. The hybrid nanoparticle showed improved photophysical properties and as a result can be used in photodynamic therapy.
- Full Text:
- Date Issued: 2015
Improved triplet state parameters for indium octacarboxy phthalocyanines when conjugated to quantum dots and magnetite nanoparticles
- Tshangana, Charmaine, Nyokong, Tebello
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/189337 , vital:44838 , xlink:href="https://doi.org/10.1016/j.molstruc.2015.02.040"
- Description: Fe3O4 magnetic nanoparticles (MNPs) and glutathione (GSH) capped CdSe@ZnS quantum dots (QDs) were separately coordinated to indium octacarboxy phthalocyanine (InPc(COOH)8) to form ClInPc(COOH)8–MNPs and ClInPc(COOH)8–GSH–CdSe@ZnS, respectively. The photophysical parameters (triplet state and fluorescence quantum yields and lifetimes) were determined for the conjugates. The triplet quantum yields increased from ΦT = 0.49 for InPc(COOH)8 alone to ΦT = 0.61 and 0.56 for InPc(COOH)8 in the conjugates: ClInPc(COOH)8–MNPs and ClInPc(COOH)8–GSH–CdSe@ZnS, respectively. The lifetimes also became longer for the conjugates compared to Pc alone.
- Full Text:
- Date Issued: 2015
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/189337 , vital:44838 , xlink:href="https://doi.org/10.1016/j.molstruc.2015.02.040"
- Description: Fe3O4 magnetic nanoparticles (MNPs) and glutathione (GSH) capped CdSe@ZnS quantum dots (QDs) were separately coordinated to indium octacarboxy phthalocyanine (InPc(COOH)8) to form ClInPc(COOH)8–MNPs and ClInPc(COOH)8–GSH–CdSe@ZnS, respectively. The photophysical parameters (triplet state and fluorescence quantum yields and lifetimes) were determined for the conjugates. The triplet quantum yields increased from ΦT = 0.49 for InPc(COOH)8 alone to ΦT = 0.61 and 0.56 for InPc(COOH)8 in the conjugates: ClInPc(COOH)8–MNPs and ClInPc(COOH)8–GSH–CdSe@ZnS, respectively. The lifetimes also became longer for the conjugates compared to Pc alone.
- Full Text:
- Date Issued: 2015
The Photophysical Properties of Multi-Functional Quantum Dots-Magnetic Nanoparticles—Indium Octacarboxyphthalocyanine Nanocomposite
- Tshangana, Charmaine, Nyokong, Tebello
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7248 , http://hdl.handle.net/10962/d1020254
- Description: This work presents the development of a multifunctional hybrid nanoparticle made of L-glutathione capped quantum dots (GSH-CdSe@ZnS), amino functionalized Fe3O4 magnetic nanoparticles and indium octacarboxy phthalocyanine (ClInPc(COOH)8). In this work we investigate the photophysical properties of the individual components and the hybrid nanoparticle, in addition we study the energy transfer (Förster Resonance Energy Transfer (FRET)) in the complex. FRET efficiencies of ~48 % were obtained for energy transfer between the QDs (when alone or linked to MNPs). Both triplet yields and lifetimes of ClInPc(COOH)8 increase in the nanocomposite, with a decrease in fluorescence lifetime. The hybrid nanoparticle showed improved photophysical properties and as a result can be used in photodynamic therapy. , Original publication is available at http://dx.doi.org/10.1007/s10895-014-1497-6
- Full Text: false
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7248 , http://hdl.handle.net/10962/d1020254
- Description: This work presents the development of a multifunctional hybrid nanoparticle made of L-glutathione capped quantum dots (GSH-CdSe@ZnS), amino functionalized Fe3O4 magnetic nanoparticles and indium octacarboxy phthalocyanine (ClInPc(COOH)8). In this work we investigate the photophysical properties of the individual components and the hybrid nanoparticle, in addition we study the energy transfer (Förster Resonance Energy Transfer (FRET)) in the complex. FRET efficiencies of ~48 % were obtained for energy transfer between the QDs (when alone or linked to MNPs). Both triplet yields and lifetimes of ClInPc(COOH)8 increase in the nanocomposite, with a decrease in fluorescence lifetime. The hybrid nanoparticle showed improved photophysical properties and as a result can be used in photodynamic therapy. , Original publication is available at http://dx.doi.org/10.1007/s10895-014-1497-6
- Full Text: false
Photophysical properties gallium octacarboxy phthalocyanines conjugated to CdSe@ ZnS quantum dots
- Tshangana, Charmaine, Nyokong, Tebello
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/189055 , vital:44812 , xlink:href="https://doi.org/10.1016/j.saa.2015.06.086"
- Description: L-Glutathione (GSH) capped core CdSe (2.3 nm) and core shell CdSe@ZnS quantum dots (QDs) (3.0 nm and 3.5 nm) were coordinated to gallium octacarboxy phthalocyanine (ClGaPc(COOH)8) to form ClGaPc(COOH)8–QDs conjugates. An efficient transfer of energy from the QDs to the Pcs was demonstrated through Förster resonance energy transfer (FRET), the FRET efficiencies in all cases was above 50%. The photophysical parameters (triplet state and fluorescence quantum yields and lifetimes) were also determined for the conjugates. There was a decrease in the fluorescence lifetimes of ClGaPc(COOH)8 in the presence of all the QDs, due to the heavy atom effect. The triplet quantum yields increased in the conjugates. The lifetimes also became longer for the conjugates compared to Pc alone.
- Full Text:
- Date Issued: 2015
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Date: 2015
- Subjects: To be catalogued
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/189055 , vital:44812 , xlink:href="https://doi.org/10.1016/j.saa.2015.06.086"
- Description: L-Glutathione (GSH) capped core CdSe (2.3 nm) and core shell CdSe@ZnS quantum dots (QDs) (3.0 nm and 3.5 nm) were coordinated to gallium octacarboxy phthalocyanine (ClGaPc(COOH)8) to form ClGaPc(COOH)8–QDs conjugates. An efficient transfer of energy from the QDs to the Pcs was demonstrated through Förster resonance energy transfer (FRET), the FRET efficiencies in all cases was above 50%. The photophysical parameters (triplet state and fluorescence quantum yields and lifetimes) were also determined for the conjugates. There was a decrease in the fluorescence lifetimes of ClGaPc(COOH)8 in the presence of all the QDs, due to the heavy atom effect. The triplet quantum yields increased in the conjugates. The lifetimes also became longer for the conjugates compared to Pc alone.
- Full Text:
- Date Issued: 2015
Photophysical properties gallium octacarboxy phthalocyanines conjugated to CdSe@ZnS quantum dots
- Tshangana, Charmaine, Nyokong, Tebello
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7287 , http://hdl.handle.net/10962/d1020335
- Description: l-Glutathione (GSH) capped core CdSe (2.3 nm) and core shell CdSe@ZnS quantum dots (QDs) (3.0 nm and 3.5 nm) were coordinated to gallium octacarboxy phthalocyanine (ClGaPc(COOH)8) to form ClGaPc(COOH)8–QDs conjugates. An efficient transfer of energy from the QDs to the Pcs was demonstrated through Förster resonance energy transfer (FRET), the FRET efficiencies in all cases was above 50%. The photophysical parameters (triplet state and fluorescence quantum yields and lifetimes) were also determined for the conjugates. There was a decrease in the fluorescence lifetimes of ClGaPc(COOH)8 in the presence of all the QDs, due to the heavy atom effect. The triplet quantum yields increased in the conjugates. The lifetimes also became longer for the conjugates compared to Pc alone. , Original publication is available at http://dx.doi.org/10.1016/j.saa.2015.06.086
- Full Text: false
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7287 , http://hdl.handle.net/10962/d1020335
- Description: l-Glutathione (GSH) capped core CdSe (2.3 nm) and core shell CdSe@ZnS quantum dots (QDs) (3.0 nm and 3.5 nm) were coordinated to gallium octacarboxy phthalocyanine (ClGaPc(COOH)8) to form ClGaPc(COOH)8–QDs conjugates. An efficient transfer of energy from the QDs to the Pcs was demonstrated through Förster resonance energy transfer (FRET), the FRET efficiencies in all cases was above 50%. The photophysical parameters (triplet state and fluorescence quantum yields and lifetimes) were also determined for the conjugates. There was a decrease in the fluorescence lifetimes of ClGaPc(COOH)8 in the presence of all the QDs, due to the heavy atom effect. The triplet quantum yields increased in the conjugates. The lifetimes also became longer for the conjugates compared to Pc alone. , Original publication is available at http://dx.doi.org/10.1016/j.saa.2015.06.086
- Full Text: false
Improved triplet state parameters for indium octacarboxy phthalocyanines when conjugated to quantum dots and magnetite nanoparticles
- Tshangana, Charmaine, Nyokong, Tebello
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7252 , http://hdl.handle.net/10962/d1020260
- Description: Fe3O4 magnetic nanoparticles (MNPs) and glutathione (GSH) capped CdSe@ZnS quantum dots (QDs) were separately coordinated to indium octacarboxy phthalocyanine (InPc(COOH)8) to form ClInPc(COOH)8–MNPs and ClInPc(COOH)8–GSH–CdSe@ZnS, respectively. The photophysical parameters (triplet state and fluorescence quantum yields and lifetimes) were determined for the conjugates. The triplet quantum yields increased from ΦT = 0.49 for InPc(COOH)8 alone to ΦT = 0.61 and 0.56 for InPc(COOH)8 in the conjugates: ClInPc(COOH)8–MNPs and ClInPc(COOH)8–GSH–CdSe@ZnS, respectively. The lifetimes also became longer for the conjugates compared to Pc alone. , Original publication is available at http://dx.doi.org/10.1016/j.molstruc.2015.02.040
- Full Text: false
- Authors: Tshangana, Charmaine , Nyokong, Tebello
- Language: English
- Type: Article
- Identifier: vital:7252 , http://hdl.handle.net/10962/d1020260
- Description: Fe3O4 magnetic nanoparticles (MNPs) and glutathione (GSH) capped CdSe@ZnS quantum dots (QDs) were separately coordinated to indium octacarboxy phthalocyanine (InPc(COOH)8) to form ClInPc(COOH)8–MNPs and ClInPc(COOH)8–GSH–CdSe@ZnS, respectively. The photophysical parameters (triplet state and fluorescence quantum yields and lifetimes) were determined for the conjugates. The triplet quantum yields increased from ΦT = 0.49 for InPc(COOH)8 alone to ΦT = 0.61 and 0.56 for InPc(COOH)8 in the conjugates: ClInPc(COOH)8–MNPs and ClInPc(COOH)8–GSH–CdSe@ZnS, respectively. The lifetimes also became longer for the conjugates compared to Pc alone. , Original publication is available at http://dx.doi.org/10.1016/j.molstruc.2015.02.040
- Full Text: false
An exploration of the school nutrition programme's potential to catalyse community-based environmental learning : a case study of a rural Eastern Cape school
- Authors: Tshabeni, Veliswa
- Date: 2015
- Subjects: National School Nutrition Programme (South Africa) , School children -- Food -- South Africa -- Eastern Cape , Children -- Nutrition -- South Africa -- Eastern Cape , Environmental education -- South Africa -- Eastern Cape , Social learning -- South Africa -- Eastern Cape , Food security -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2063 , http://hdl.handle.net/10962/d1020306
- Description: The purpose of this study was to explore the extent to which a School Nutrition Programme can catalyse community-based environmental learning and promote food security in the school and the community. This is an interpretive case study of a junior secondary school in the rural Eastern Cape province of South Africa. The school is located in an area characterised by high levels of poverty and under-nutrition. The school’s food garden, a central focus of this study, contributes to the School Nutrition Programme, which falls under the National School Nutrition Programme (NSNP). The aim of the NSNP is to alleviate poverty in public schools. This case study was conducted by means of questionnaires, semi-structured interviews, and document analysis and field observations. The data set was analysed, firstly, to ascertain if the School Nutrition Programme functions as a community of practise (Wenger, 1998). Thereafter, the data set was analysed to identify the knowledge related to food security and environmental sustainability that is learned and shared in the School Nutrition Programme, and also how such learning took place. The study found that the School’s Nutrition Programme was indeed operating as a community of practice and that it created a platform for sharing explicit and tacit knowledge and skills related to food security and environmental sustainability. The case study also revealed the contextual and experience-based nature of knowledge related to food cultivation.
- Full Text:
- Date Issued: 2015
- Authors: Tshabeni, Veliswa
- Date: 2015
- Subjects: National School Nutrition Programme (South Africa) , School children -- Food -- South Africa -- Eastern Cape , Children -- Nutrition -- South Africa -- Eastern Cape , Environmental education -- South Africa -- Eastern Cape , Social learning -- South Africa -- Eastern Cape , Food security -- South Africa -- Eastern Cape , Rural development -- South Africa -- Eastern Cape , Poverty -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2063 , http://hdl.handle.net/10962/d1020306
- Description: The purpose of this study was to explore the extent to which a School Nutrition Programme can catalyse community-based environmental learning and promote food security in the school and the community. This is an interpretive case study of a junior secondary school in the rural Eastern Cape province of South Africa. The school is located in an area characterised by high levels of poverty and under-nutrition. The school’s food garden, a central focus of this study, contributes to the School Nutrition Programme, which falls under the National School Nutrition Programme (NSNP). The aim of the NSNP is to alleviate poverty in public schools. This case study was conducted by means of questionnaires, semi-structured interviews, and document analysis and field observations. The data set was analysed, firstly, to ascertain if the School Nutrition Programme functions as a community of practise (Wenger, 1998). Thereafter, the data set was analysed to identify the knowledge related to food security and environmental sustainability that is learned and shared in the School Nutrition Programme, and also how such learning took place. The study found that the School’s Nutrition Programme was indeed operating as a community of practice and that it created a platform for sharing explicit and tacit knowledge and skills related to food security and environmental sustainability. The case study also revealed the contextual and experience-based nature of knowledge related to food cultivation.
- Full Text:
- Date Issued: 2015
The relationship between employer branding and organisational commitment
- Authors: Tryfonos, Angelique
- Date: 2015
- Subjects: Corporate culture , Organizational commitment , Psychology, Industrial
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9419 , http://hdl.handle.net/10948/d1021146
- Description: The aim of this study was to determine whether a relationship exists between organisational commitment (OC) and employer branding (EB). The purpose was to Identifying whether employer branding effects organisational commitment (affective, normative and continuance commitment) and how significant that effect may be. Questionnaires were personally distributed by the researcher directly to employees under study. Non-probability sampling was used in the form of judgement sampling. The sample consisted of 124 employees from various retail outlets throughout Port Elizabeth, Eastern Cape. Five hypotheses were set for evaluation. A practically significant relationship was established between organisational commitment (OC) and employer branding (EB). A small practically significant relationship was found between gender and normative commitment. A medium practically significant relationship was found between gender and training and development as well as between gender and work/life balance. Statistically significant relationships were discovered with regards to age and leadership and also between age and rewards and recognition. A statistically significant difference was established between age and overall employer branding (EB). These findings suggest that a more positive employer brand will lead to improved organisational commitment (OC). More so, retail organisations aiming to improve on organisational commitment should incorporate those employer branding (EB) factors which employees’ place greater emphasis on, within their employer brand, which in turn will lead to greater organisational commitment.
- Full Text:
- Date Issued: 2015
- Authors: Tryfonos, Angelique
- Date: 2015
- Subjects: Corporate culture , Organizational commitment , Psychology, Industrial
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9419 , http://hdl.handle.net/10948/d1021146
- Description: The aim of this study was to determine whether a relationship exists between organisational commitment (OC) and employer branding (EB). The purpose was to Identifying whether employer branding effects organisational commitment (affective, normative and continuance commitment) and how significant that effect may be. Questionnaires were personally distributed by the researcher directly to employees under study. Non-probability sampling was used in the form of judgement sampling. The sample consisted of 124 employees from various retail outlets throughout Port Elizabeth, Eastern Cape. Five hypotheses were set for evaluation. A practically significant relationship was established between organisational commitment (OC) and employer branding (EB). A small practically significant relationship was found between gender and normative commitment. A medium practically significant relationship was found between gender and training and development as well as between gender and work/life balance. Statistically significant relationships were discovered with regards to age and leadership and also between age and rewards and recognition. A statistically significant difference was established between age and overall employer branding (EB). These findings suggest that a more positive employer brand will lead to improved organisational commitment (OC). More so, retail organisations aiming to improve on organisational commitment should incorporate those employer branding (EB) factors which employees’ place greater emphasis on, within their employer brand, which in turn will lead to greater organisational commitment.
- Full Text:
- Date Issued: 2015
Demand driven rural agricultural development in South Africa: the case of the agricultural sustainable community investment programme
- Authors: Troosters, Wim
- Date: 2015
- Subjects: Agricultural development projects -- South Africa , Farms, Small -- South Africa , Farmers -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10739 , http://hdl.handle.net/10948/d1021149
- Description: Food security is high on the development agenda in South Africa. A wide range of agricultural interventions exist across the country initiated by various stakeholders at different levels of society. While many interventions focus on production related constraints of food security, there are far fewer that focus on the integration of smallholder farmers in the supply chain. The research subject is the Agricultural Sustainable Community Investment Project (Agri-SCIP), operating on the south coast of the Kwa-Zulu Natal Province. As a demand driven alternative market model, the focus of the project is on the integration of local smallholder farmers in the fresh produce supply chain. The main research question is whether the participation of smallholder farmers in the fresh produce supply actually has actually improved for participants of the test case. Existing barriers to entry for smallholder farmers are mitigated in the project. Through a literature review five critical factors for market participation by smallholder farmers are identified, namely transport and distance to markets, product quality, product quantity, the buyer-seller relationship and market information. A literature review and empirical data are applied to test the impact of the Agri-SCIP project on the participation of smallholder farmers in the fresh produce supply chain based on these five critical factors. The data indicate that many of the existing barriers to entry in the fresh produce supply chain for the smallholder farmers are mitigated, and have been shifted to a collectively owned co-operative. Therefore, as an alternative market model, Agri-SCIP has the potential to provide a sustainable solution for smallholder development in South Africa with a strong focus on supply chain participation. The development of a strong smallholder farmers base and the development of smallholder farmers into semi-commercial farmers are potential long term results of the Agri-SCIP alternative market model.
- Full Text:
- Date Issued: 2015
- Authors: Troosters, Wim
- Date: 2015
- Subjects: Agricultural development projects -- South Africa , Farms, Small -- South Africa , Farmers -- South Africa
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:10739 , http://hdl.handle.net/10948/d1021149
- Description: Food security is high on the development agenda in South Africa. A wide range of agricultural interventions exist across the country initiated by various stakeholders at different levels of society. While many interventions focus on production related constraints of food security, there are far fewer that focus on the integration of smallholder farmers in the supply chain. The research subject is the Agricultural Sustainable Community Investment Project (Agri-SCIP), operating on the south coast of the Kwa-Zulu Natal Province. As a demand driven alternative market model, the focus of the project is on the integration of local smallholder farmers in the fresh produce supply chain. The main research question is whether the participation of smallholder farmers in the fresh produce supply actually has actually improved for participants of the test case. Existing barriers to entry for smallholder farmers are mitigated in the project. Through a literature review five critical factors for market participation by smallholder farmers are identified, namely transport and distance to markets, product quality, product quantity, the buyer-seller relationship and market information. A literature review and empirical data are applied to test the impact of the Agri-SCIP project on the participation of smallholder farmers in the fresh produce supply chain based on these five critical factors. The data indicate that many of the existing barriers to entry in the fresh produce supply chain for the smallholder farmers are mitigated, and have been shifted to a collectively owned co-operative. Therefore, as an alternative market model, Agri-SCIP has the potential to provide a sustainable solution for smallholder development in South Africa with a strong focus on supply chain participation. The development of a strong smallholder farmers base and the development of smallholder farmers into semi-commercial farmers are potential long term results of the Agri-SCIP alternative market model.
- Full Text:
- Date Issued: 2015
The system of the mbira
- Authors: Tracey, Andrew
- Date: 2015
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/59720 , vital:27642 , http://dx.doi.org/10.21504/amj.v10i1.1229
- Description: The existence of a harmonically-based system of the mbira in Africa should be of great interest in itself, in comparison with modern African musical preferences, and for Afro-American music studies, where the blues sequence is another highly generative harmonic system. It demonstrates a unique method of getting harmonically “from here to there”, and offers an almost endless potential for Shona composers. In fact, the special tinge, the appeal, of modern Shona popular, church and school music comes in large part from the principles of the system which fortunately persist even when composers are working in Western harmony.This is a re-edited and updated version of the paper presented at the 7th Symposium on Ethnomusicology (Venda University) in 1988, published by ILAM in “Papers presented at the 7th and 8th Symposiums in Ethnomusicology” (1989). It is reproduced here because of the worldwide interest which has developed in mbira and its system in recent decades.
- Full Text:
- Date Issued: 2015
- Authors: Tracey, Andrew
- Date: 2015
- Language: English
- Type: article , text
- Identifier: http://hdl.handle.net/10962/59720 , vital:27642 , http://dx.doi.org/10.21504/amj.v10i1.1229
- Description: The existence of a harmonically-based system of the mbira in Africa should be of great interest in itself, in comparison with modern African musical preferences, and for Afro-American music studies, where the blues sequence is another highly generative harmonic system. It demonstrates a unique method of getting harmonically “from here to there”, and offers an almost endless potential for Shona composers. In fact, the special tinge, the appeal, of modern Shona popular, church and school music comes in large part from the principles of the system which fortunately persist even when composers are working in Western harmony.This is a re-edited and updated version of the paper presented at the 7th Symposium on Ethnomusicology (Venda University) in 1988, published by ILAM in “Papers presented at the 7th and 8th Symposiums in Ethnomusicology” (1989). It is reproduced here because of the worldwide interest which has developed in mbira and its system in recent decades.
- Full Text:
- Date Issued: 2015
A study of job stress, job satisfaction and turnover intentions among employees of the Eastern Cape Provincial Legislature in Bisho
- Authors: Tom, Zoliswa Mavis
- Date: 2015
- Subjects: Job stress Job satisfaction Labor turnover -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/1948 , vital:27587
- Description: According to Greenberg (2011) stress is an inevitable fact of organizational life today, and has an effect on both the employer and employee. The main aim of this study was on finding out the effect of job stress on job satisfaction and employee turnover in the Eastern Cape Provincial Legislature department. This study was conducted employing logical positivism as the philosophical paradigm; and this logical positivism derives from only two sources of knowledge which are logical reasoning and empirical experience. The researcher employed a non-experimental exploratory quantitative approach, employing the questionnaire as a data collection instrument. A sample size of 238 participants was used to collect data. Data analysis was done using the Pearson correlation coefficient and multi regressions. Job stress was found to have substantial influence to increase turnover intentions and to decrease job satisfaction. In addition, job stress and job satisfaction combine to have a collective influence on turnover intentions. The study recommends managers to implement motivational strategies to enhance job satisfaction and retain employees as long as possible.
- Full Text:
- Date Issued: 2015
- Authors: Tom, Zoliswa Mavis
- Date: 2015
- Subjects: Job stress Job satisfaction Labor turnover -- South Africa -- Eastern Cape
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: http://hdl.handle.net/10353/1948 , vital:27587
- Description: According to Greenberg (2011) stress is an inevitable fact of organizational life today, and has an effect on both the employer and employee. The main aim of this study was on finding out the effect of job stress on job satisfaction and employee turnover in the Eastern Cape Provincial Legislature department. This study was conducted employing logical positivism as the philosophical paradigm; and this logical positivism derives from only two sources of knowledge which are logical reasoning and empirical experience. The researcher employed a non-experimental exploratory quantitative approach, employing the questionnaire as a data collection instrument. A sample size of 238 participants was used to collect data. Data analysis was done using the Pearson correlation coefficient and multi regressions. Job stress was found to have substantial influence to increase turnover intentions and to decrease job satisfaction. In addition, job stress and job satisfaction combine to have a collective influence on turnover intentions. The study recommends managers to implement motivational strategies to enhance job satisfaction and retain employees as long as possible.
- Full Text:
- Date Issued: 2015
An investigation of socio-ecological issues and risks and capabilities in the 'my future is my choice' HIV and AIDS programme : a case in northern Namibia
- Authors: Tjiveze, Wakaa
- Date: 2015
- Subjects: My Future is My Choice (Program : Namibia) , HIV infections -- Social aspects -- Namibia , AIDS (Disease) -- Social aspects -- Namibia , AIDS (Disease) -- Study and teaching -- Namibia , AIDS (Disease) -- Risk factors -- Namibia , AIDS (Disease) -- Moral and ethical aspects -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2050 , http://hdl.handle.net/10962/d1017769
- Description: The HIV and AIDS crisis can be presented as a socio-ecological issue, with an ever-increasing impact on both human beings and the environment. Teaching about socio-ecological issues and the consideration of individual capabilities has become crucial within HIV and AIDS education programmes. Issues of deforestation, land degradation and other environmental problems have worsened since the advent of HIV and AIDS, especially in developing countries. The My Future is My Choice (MFMC) programme has been identified as an important HIV and AIDS education initiative that caters for young people in Namibian secondary schools (Grades 8-12). One of the themes within the programme (Facing HIV and AIDS) is highlighted in this study. This study was constituted as a case study of one school in rural Omuthiya, in the Oshikoto region. The study investigated the opportunities for the integration of a focus on socio-ecological issues and risks, within the MFMC education programme. The study also investigated the way in which the program develops learners‟ capabilities to respond to HIV and AIDS related socio-ecological issues and risks/vulnerabilities. The study also presents the constraints and enabling factors influencing the implementation of the programme. This study used a qualitative, interpretive case study methodology. The research methods included the analysis of eight documents and nineteen semi-structured interviews, with the Programme Coordinator, the Programme Facilitator, the School Principal and with the programme participants. The analysis also included two focus group discussions with a group of learners; and two classroom observations; and the learners' submissions (reflection sheets). Convenience sampling was used, and ethical issues were taken into consideration throughout the study. The study revealed the following as key findings: The aims and objectives of the HIV and AIDS education programme can enhance and constrain the development of capabilities, as well as opportunities and challenges for the integration of a focus on socio-environmental issues and risks as additional learning content. Teaching and learning methods that are participatory and rooted within the learner centered approach can make the integration of HIV and AIDS inherent socio-environmental issues and risks into the MFMC education programme possible. The values and beliefs inherent within the MFMC education programme stand as opportunities for the successful development of capabilities in the education programme. The study concluded by recommending that capabilities within the MFMC programme be developed through teaching learners about their rights, respect for human dignity, and the right to health and to living the life free from discriminatory practices, as a moral entitlement of each and every individual. While teaching learners about their right to health and the importance of healthy diets, this study found that the programme could include learning about food production and handling practices for the benefit of those living with HIV and AIDS, while caring for the environment. Another recommendation was that future research should consider actively involving young people in decision-making with regard to the programme, as this will allow them to choose and decide on what knowledge and skills they need and want to acquire. The study further explained that this will promote the programme participants‟ sense of agency, and their freedom to choose what they value being and doing as an important element in enhancing learner capabilities. Ultimately, this will also enable the learners to acquire the necessary skills and knowledge they need in order to respond to the socio-ecological problems they face in their communities.
- Full Text:
- Date Issued: 2015
- Authors: Tjiveze, Wakaa
- Date: 2015
- Subjects: My Future is My Choice (Program : Namibia) , HIV infections -- Social aspects -- Namibia , AIDS (Disease) -- Social aspects -- Namibia , AIDS (Disease) -- Study and teaching -- Namibia , AIDS (Disease) -- Risk factors -- Namibia , AIDS (Disease) -- Moral and ethical aspects -- Namibia
- Language: English
- Type: Thesis , Masters , MEd
- Identifier: vital:2050 , http://hdl.handle.net/10962/d1017769
- Description: The HIV and AIDS crisis can be presented as a socio-ecological issue, with an ever-increasing impact on both human beings and the environment. Teaching about socio-ecological issues and the consideration of individual capabilities has become crucial within HIV and AIDS education programmes. Issues of deforestation, land degradation and other environmental problems have worsened since the advent of HIV and AIDS, especially in developing countries. The My Future is My Choice (MFMC) programme has been identified as an important HIV and AIDS education initiative that caters for young people in Namibian secondary schools (Grades 8-12). One of the themes within the programme (Facing HIV and AIDS) is highlighted in this study. This study was constituted as a case study of one school in rural Omuthiya, in the Oshikoto region. The study investigated the opportunities for the integration of a focus on socio-ecological issues and risks, within the MFMC education programme. The study also investigated the way in which the program develops learners‟ capabilities to respond to HIV and AIDS related socio-ecological issues and risks/vulnerabilities. The study also presents the constraints and enabling factors influencing the implementation of the programme. This study used a qualitative, interpretive case study methodology. The research methods included the analysis of eight documents and nineteen semi-structured interviews, with the Programme Coordinator, the Programme Facilitator, the School Principal and with the programme participants. The analysis also included two focus group discussions with a group of learners; and two classroom observations; and the learners' submissions (reflection sheets). Convenience sampling was used, and ethical issues were taken into consideration throughout the study. The study revealed the following as key findings: The aims and objectives of the HIV and AIDS education programme can enhance and constrain the development of capabilities, as well as opportunities and challenges for the integration of a focus on socio-environmental issues and risks as additional learning content. Teaching and learning methods that are participatory and rooted within the learner centered approach can make the integration of HIV and AIDS inherent socio-environmental issues and risks into the MFMC education programme possible. The values and beliefs inherent within the MFMC education programme stand as opportunities for the successful development of capabilities in the education programme. The study concluded by recommending that capabilities within the MFMC programme be developed through teaching learners about their rights, respect for human dignity, and the right to health and to living the life free from discriminatory practices, as a moral entitlement of each and every individual. While teaching learners about their right to health and the importance of healthy diets, this study found that the programme could include learning about food production and handling practices for the benefit of those living with HIV and AIDS, while caring for the environment. Another recommendation was that future research should consider actively involving young people in decision-making with regard to the programme, as this will allow them to choose and decide on what knowledge and skills they need and want to acquire. The study further explained that this will promote the programme participants‟ sense of agency, and their freedom to choose what they value being and doing as an important element in enhancing learner capabilities. Ultimately, this will also enable the learners to acquire the necessary skills and knowledge they need in order to respond to the socio-ecological problems they face in their communities.
- Full Text:
- Date Issued: 2015
The presentation of African government leaders or Sovereigns' in selected African and mainstream films
- Tjalle, Rosalie Olivia Vanessa
- Authors: Tjalle, Rosalie Olivia Vanessa
- Date: 2015
- Subjects: Motion pictures -- Political aspects -- Africa Political science -- Philosophy , Sovereignty
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/12392 , vital:27062
- Description: African Cinema is an entity as diverse as the various countries, languages and cultures on this continent. The entertainment value of Cinema has been more popular than the study of its ideological significance, but nevertheless in a contemporary Africa where politics affect the social, cultural and economical survival of its citizens, Cinema can be used as a valuable asset and a powerful means of communication that can conscientize and educate African audiences. Thomas Hobbes’s leadership model and political theory of sovereignty, though a XVIIth century framework, can theoretically contribute in the analysis of the representation of African leadership styles in Cinema. This article analyzes four fiction films representing four different political leaders in, respectively, South Africa, Uganda, Cameroon and Nigeria. A film content analysis will explore the different representation of leadership styles, the personality of each leader, the power struggles in each society and how this may suggest value judgments about African leadership to the films’ various target audiences.
- Full Text:
- Date Issued: 2015
- Authors: Tjalle, Rosalie Olivia Vanessa
- Date: 2015
- Subjects: Motion pictures -- Political aspects -- Africa Political science -- Philosophy , Sovereignty
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/12392 , vital:27062
- Description: African Cinema is an entity as diverse as the various countries, languages and cultures on this continent. The entertainment value of Cinema has been more popular than the study of its ideological significance, but nevertheless in a contemporary Africa where politics affect the social, cultural and economical survival of its citizens, Cinema can be used as a valuable asset and a powerful means of communication that can conscientize and educate African audiences. Thomas Hobbes’s leadership model and political theory of sovereignty, though a XVIIth century framework, can theoretically contribute in the analysis of the representation of African leadership styles in Cinema. This article analyzes four fiction films representing four different political leaders in, respectively, South Africa, Uganda, Cameroon and Nigeria. A film content analysis will explore the different representation of leadership styles, the personality of each leader, the power struggles in each society and how this may suggest value judgments about African leadership to the films’ various target audiences.
- Full Text:
- Date Issued: 2015
Assessment of the quality indices and prevalence of Escherichia coli pathotypes in selected rivers of Osun state, Southwestern Nigeria
- Authors: Titilawo, Osuolale Yinka
- Date: 2015
- Language: English
- Type: Thesis , Doctoral , PhD (Microbiology)
- Identifier: vital:11295 , http://hdl.handle.net/10353/d1021274
- Description: Surface waters are important freshwater sources used for domestic, industrial, agricultural and recreational activities, and the availability of good quality freshwater is indispensable for preventing water-borne diseases and improving quality of life especially in communities that lack pipe-borne water. Water samples were collected from ten rivers at different locations in Osun State, Southwestern Nigeria. A total of 12 physicochemical parameters, counts of total coliforms (TC) and Escherichia coli isolates were determined using standard analytical procedures. Confirmed Escherichia coli isolates (n=300) were assessed for the presence of 10 virulence genes (VGs) associated with Escherichia coli strains causing intestinal and extra-intestinal infections. The recovered Escherichia coli isolates were elucidated for their antibiogram profiling by disk diffusion method and the resistant isolates were further profiled for their genotypic antimicrobial resistance by polymerase chain reaction technique. The physicochemical qualities ranged as follows: pH (6.9 - 7.6), temperature (26 – 29 ºC), turbidity (2.28 – 9.46 NTU), electrical conductivity (229 – 581 μS/cm), nitrate (0.03 – 0.05 mg/L), nitrite (0.00 – 0.01 mg/L), sulphate (3.33 – 20.33 mg/L), chloride ions (7.83 – 27.33 mg/L), dissolved oxygen (4.23 – 5.57 mg/L), total dissolved solids (56 – 184 mg/L), total hardness (78 – 519 mg/L) and alkalinity (50.67 – 146.67 mg/L). Statistical analysis showed that pH, temperature, electrical conductivities, nitrates, nitrites, chloride, dissolved oxygen, total dissolved solid, total hardness and alkalinity were significantly different (P < 0.05), whereas turbidity and sulphate were not significantly different (P ˃ 0.05) from each parameter with respect to sampling sites. While the VG lt for enterotoxigenic E. coli had the highest prevalence of 45%, the enteropathogenic E. coli genes eae and bfp were detected in 6% and 4% of the isolates respectively. The VGs stx1 and stx2 specific for the enterohemorrhagic E. coli pathotypes were equally detected in 7% and 1% of the isolates respectively. Also, the VG eagg harboured by enteroaggregative pathotype and diffusely-adherent E. coli VG daaE were detected in 2% and 4% of the isolates respectively and enteroinvasive E. coli VG ipaH was not detected. In addition, the VGs papC for uropathogenic and ibeA for neonatal meningitis were frequently detected in 19% and 3% of isolates respectively. While all the isolates tested were susceptible to imipenem, meropenem, amikacin and gatilofloxacin, others were variously susceptible, and resistant as follows; ciprofloxacin (96%), kanamycin (95%), neomycin (92%), streptomycin (84%), chloramphenicol (73%), nalidixic acid (66%), nitrofuratoin (64%), gentamycin (63%), doxycycline (58%), cefepime (57%), tetracycline (49%) and cephalothin (42%). Conversely, all the isolates were resistant to sulphamethoxazole, and high levels of resistance were equally observed against amoxycillin (59%), ampicilin (57%) and cefuroxime (40%). Cefepime, cephalothin, cefuroxime, nalidixic acid, nitrofuratoin, chloramphenicol and tetracycline were not significantly different in their effect against the isolates from all locations (P > 0.05), whereas the resistance profile of the isolates against gentamycin, ciprofloxacin, sulphamethoxazole, ampicillin and amoxicillin were significantly different (P < 0.05). Amikacin, kanamycin, streptomycin, meropenem, imipenem and gatilofloxacin were statistically excluded from the analysis since all tested isolates showed total susceptibility to these antimicrobials. The multiple antibiotic resistance indexing ranged from 0.50 to 0.80 for all the sampling locations and exceeded the threshold value of 0.2. Prevalence and distributions of the 19 resistance determinants assessed were obtained as follows; [sulfonamides (sulI (8%), sulII (41%)], [beta-lactams; (ampC 22%; blaTEM, (21%), blaZ (18%),], [tetracyclines (tetA (24%), tetB (23%), tetC (18%), tetD (78%), tetK (15%), tetM, (10%)], [phenicols; (catI (37%), catII (28%), cmlA1 (19%)] and [aminoglycosides; (aacC2 (8%), aphA1 (80%), aphA2 (80%), aadA (79%) and strA (38%)]. The Pearson chi square exact test revealed many strong significant associations among ampC, blaTEM, blaZ and tetA genes with some determinants screened. In the same vein, a grand total of 366 resistance gene fingerprints were spotted across the sampling locations and among the resistant pathotypes, the modal prevalent gene prints were found among the ETEC strains in 148 (40%), being the predominant pathotype observed, followed by UPEC strains 80 (22%) while the lowest was the least occurring EAEC pathotype 14 (4%). While some physicochemical parameters exceeded prescribed standards for drinking water, some fell within. The total coliforms obtained in all the sampling sites were above the acceptable limits. Findings reveal the presence of diarrhoeagenic and non-diarrhoeagenic E. coli in the selected rivers and suggest a potential public health risk as the rivers are important resources for domestic, recreational and livelihood usage by their host communities. The multiple drug resistance indexing signifies isolates and pathotypes of high antimicrobial usage origin. An increase in the antimicrobial resistance signatures towards conventionally used antibiotics as observed in this study necessitates for safe water supply, adequate sanitation facilities and proper surveillance programs towards the monitoring of antimicrobial resistance determinants in water-bodies. Generally, results from this study indicate that the river waters are not suitable for consumption, domestic or recreational use and re-echo the importance of safeguarding the freshwater resources of Southwestern Nigeria.
- Full Text:
- Date Issued: 2015
- Authors: Titilawo, Osuolale Yinka
- Date: 2015
- Language: English
- Type: Thesis , Doctoral , PhD (Microbiology)
- Identifier: vital:11295 , http://hdl.handle.net/10353/d1021274
- Description: Surface waters are important freshwater sources used for domestic, industrial, agricultural and recreational activities, and the availability of good quality freshwater is indispensable for preventing water-borne diseases and improving quality of life especially in communities that lack pipe-borne water. Water samples were collected from ten rivers at different locations in Osun State, Southwestern Nigeria. A total of 12 physicochemical parameters, counts of total coliforms (TC) and Escherichia coli isolates were determined using standard analytical procedures. Confirmed Escherichia coli isolates (n=300) were assessed for the presence of 10 virulence genes (VGs) associated with Escherichia coli strains causing intestinal and extra-intestinal infections. The recovered Escherichia coli isolates were elucidated for their antibiogram profiling by disk diffusion method and the resistant isolates were further profiled for their genotypic antimicrobial resistance by polymerase chain reaction technique. The physicochemical qualities ranged as follows: pH (6.9 - 7.6), temperature (26 – 29 ºC), turbidity (2.28 – 9.46 NTU), electrical conductivity (229 – 581 μS/cm), nitrate (0.03 – 0.05 mg/L), nitrite (0.00 – 0.01 mg/L), sulphate (3.33 – 20.33 mg/L), chloride ions (7.83 – 27.33 mg/L), dissolved oxygen (4.23 – 5.57 mg/L), total dissolved solids (56 – 184 mg/L), total hardness (78 – 519 mg/L) and alkalinity (50.67 – 146.67 mg/L). Statistical analysis showed that pH, temperature, electrical conductivities, nitrates, nitrites, chloride, dissolved oxygen, total dissolved solid, total hardness and alkalinity were significantly different (P < 0.05), whereas turbidity and sulphate were not significantly different (P ˃ 0.05) from each parameter with respect to sampling sites. While the VG lt for enterotoxigenic E. coli had the highest prevalence of 45%, the enteropathogenic E. coli genes eae and bfp were detected in 6% and 4% of the isolates respectively. The VGs stx1 and stx2 specific for the enterohemorrhagic E. coli pathotypes were equally detected in 7% and 1% of the isolates respectively. Also, the VG eagg harboured by enteroaggregative pathotype and diffusely-adherent E. coli VG daaE were detected in 2% and 4% of the isolates respectively and enteroinvasive E. coli VG ipaH was not detected. In addition, the VGs papC for uropathogenic and ibeA for neonatal meningitis were frequently detected in 19% and 3% of isolates respectively. While all the isolates tested were susceptible to imipenem, meropenem, amikacin and gatilofloxacin, others were variously susceptible, and resistant as follows; ciprofloxacin (96%), kanamycin (95%), neomycin (92%), streptomycin (84%), chloramphenicol (73%), nalidixic acid (66%), nitrofuratoin (64%), gentamycin (63%), doxycycline (58%), cefepime (57%), tetracycline (49%) and cephalothin (42%). Conversely, all the isolates were resistant to sulphamethoxazole, and high levels of resistance were equally observed against amoxycillin (59%), ampicilin (57%) and cefuroxime (40%). Cefepime, cephalothin, cefuroxime, nalidixic acid, nitrofuratoin, chloramphenicol and tetracycline were not significantly different in their effect against the isolates from all locations (P > 0.05), whereas the resistance profile of the isolates against gentamycin, ciprofloxacin, sulphamethoxazole, ampicillin and amoxicillin were significantly different (P < 0.05). Amikacin, kanamycin, streptomycin, meropenem, imipenem and gatilofloxacin were statistically excluded from the analysis since all tested isolates showed total susceptibility to these antimicrobials. The multiple antibiotic resistance indexing ranged from 0.50 to 0.80 for all the sampling locations and exceeded the threshold value of 0.2. Prevalence and distributions of the 19 resistance determinants assessed were obtained as follows; [sulfonamides (sulI (8%), sulII (41%)], [beta-lactams; (ampC 22%; blaTEM, (21%), blaZ (18%),], [tetracyclines (tetA (24%), tetB (23%), tetC (18%), tetD (78%), tetK (15%), tetM, (10%)], [phenicols; (catI (37%), catII (28%), cmlA1 (19%)] and [aminoglycosides; (aacC2 (8%), aphA1 (80%), aphA2 (80%), aadA (79%) and strA (38%)]. The Pearson chi square exact test revealed many strong significant associations among ampC, blaTEM, blaZ and tetA genes with some determinants screened. In the same vein, a grand total of 366 resistance gene fingerprints were spotted across the sampling locations and among the resistant pathotypes, the modal prevalent gene prints were found among the ETEC strains in 148 (40%), being the predominant pathotype observed, followed by UPEC strains 80 (22%) while the lowest was the least occurring EAEC pathotype 14 (4%). While some physicochemical parameters exceeded prescribed standards for drinking water, some fell within. The total coliforms obtained in all the sampling sites were above the acceptable limits. Findings reveal the presence of diarrhoeagenic and non-diarrhoeagenic E. coli in the selected rivers and suggest a potential public health risk as the rivers are important resources for domestic, recreational and livelihood usage by their host communities. The multiple drug resistance indexing signifies isolates and pathotypes of high antimicrobial usage origin. An increase in the antimicrobial resistance signatures towards conventionally used antibiotics as observed in this study necessitates for safe water supply, adequate sanitation facilities and proper surveillance programs towards the monitoring of antimicrobial resistance determinants in water-bodies. Generally, results from this study indicate that the river waters are not suitable for consumption, domestic or recreational use and re-echo the importance of safeguarding the freshwater resources of Southwestern Nigeria.
- Full Text:
- Date Issued: 2015
The unfair labour practice relating to benefits
- Authors: Timothy, Andrea Francis
- Date: 2015
- Subjects: Unfair labor practices -- South Africa , Employee fringe benefits -- South Africa , Labor laws and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10259 , http://hdl.handle.net/10948/d1021157
- Description: The meaning of the term “benefits” in the context of unfair labour practice jurisprudence, having previously been unsettled for more than a decade, has now been settled by the Labour Appeal Court in the Apollo.1 Prior to Apollo,2 our courts have struggled to adopt a stance to maintain the distinction between disputes of rights and disputes of interest as separate compartments. The prevalent view at that stage was that, in order for an employee to lodge a dispute at the CCMA or Bargaining Council the employee would have to show that he or she had a right to the benefit that arises by virtue of contract, statute or collective agreement, failing which the CCMA or a Bargaining Council would not have the jurisdiction to determine the dispute, in which case it may constitute a dispute of interest and the employee will have to embark on an industrial action to secure a benefit. Apollo3 endorsed a previous decision of the Labour Court,4 i.e. by placing “benefits” into the following two categories: (1) Where the dispute is about a demand by employees concerning their benefits, it can be settled by way of industrial action. (2) Where the dispute concerns the fairness of the employer's conduct, it must be settled by way of adjudication or arbitration. As a result of the above categorisation, the CCMA or Bargaining Council may adjudicate a dispute relating to benefits where there is a pre-existing benefit and the employer refuses to comply with its obligation towards the employer in that regard. It may also adjudicate disputes relating to the provision of a car allowance (i.e. where the employer retains the discretion to grant or withhold the allowance) and disputes relating to the provision of bonuses (i.e. where the employer retains the discretion to grant or withhold the bonus). In this treatise, I set out the history and development of the legislation in relation to the concept of “benefits” (in the context of unfair labour practice) so as to understand how our Labour Appeal Court has now come to settle the issues above.
- Full Text:
- Date Issued: 2015
- Authors: Timothy, Andrea Francis
- Date: 2015
- Subjects: Unfair labor practices -- South Africa , Employee fringe benefits -- South Africa , Labor laws and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10259 , http://hdl.handle.net/10948/d1021157
- Description: The meaning of the term “benefits” in the context of unfair labour practice jurisprudence, having previously been unsettled for more than a decade, has now been settled by the Labour Appeal Court in the Apollo.1 Prior to Apollo,2 our courts have struggled to adopt a stance to maintain the distinction between disputes of rights and disputes of interest as separate compartments. The prevalent view at that stage was that, in order for an employee to lodge a dispute at the CCMA or Bargaining Council the employee would have to show that he or she had a right to the benefit that arises by virtue of contract, statute or collective agreement, failing which the CCMA or a Bargaining Council would not have the jurisdiction to determine the dispute, in which case it may constitute a dispute of interest and the employee will have to embark on an industrial action to secure a benefit. Apollo3 endorsed a previous decision of the Labour Court,4 i.e. by placing “benefits” into the following two categories: (1) Where the dispute is about a demand by employees concerning their benefits, it can be settled by way of industrial action. (2) Where the dispute concerns the fairness of the employer's conduct, it must be settled by way of adjudication or arbitration. As a result of the above categorisation, the CCMA or Bargaining Council may adjudicate a dispute relating to benefits where there is a pre-existing benefit and the employer refuses to comply with its obligation towards the employer in that regard. It may also adjudicate disputes relating to the provision of a car allowance (i.e. where the employer retains the discretion to grant or withhold the allowance) and disputes relating to the provision of bonuses (i.e. where the employer retains the discretion to grant or withhold the bonus). In this treatise, I set out the history and development of the legislation in relation to the concept of “benefits” (in the context of unfair labour practice) so as to understand how our Labour Appeal Court has now come to settle the issues above.
- Full Text:
- Date Issued: 2015
Perceptions of indigenous people regarding mental illness at Cacadu District in the Eastern Cape Province of South Africa
- Authors: Tilolo, Lwazi Romeo
- Date: 2015
- Subjects: Indigenous peoples -- Mental health -- South Africa -- Eastern Cape Cultural psychiatry -- South Africa -- Eastern Cape Healers -- South Africa -- Eastern Cape , Ethnopsychology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/2677 , vital:27983
- Description: Indigenous people tend to consult traditional healers when a family member manifests change in behaviour, whilst conventional treatment disregards spirituality when preserving mental health. The aim of the study was to explore the perceptions of indigenous people and the role of traditional healers in the management of mentally ill persons within the Cacadu District in the Eastern Cape Province of South Africa. The study has adopted a qualitative approach which was exploratory and descriptive in nature. The sample consisted of nine relatives of mental health care users (MHCUs) and six traditional healers. Ethical principles were also taken into consideration by the researcher during the process of conducting the study. Data were collected from two strata, namely, relatives of the MHCUs and the traditional healers and an interview guide was used to conduct in-depth face-to-face interviews. Data were analysed using Tesch’s method of data analysis. Four themes emerged from the data categories and sub categories were identified. According to the themes participants indicated the negative impact of mental illness; as a result they portrayed great desperation regarding the means of accessing a cure for mental illness. Some participants showed insufficient knowledge regarding mental illness and had different perceptions and beliefs regarding the origin of mental illness. Available literature was used to emphasise and support the views that were expressed by both traditional healers and relatives of MHCUs. It has been highlighted from this study that indigenous people of Cacadu District view mental illness as spiritual in origin but they include Western medication for the benefit of the mentally ill. In addition, the relatives of the MHCUs highlighted the economic burden as the major problem that results from mental illness.
- Full Text:
- Date Issued: 2015
- Authors: Tilolo, Lwazi Romeo
- Date: 2015
- Subjects: Indigenous peoples -- Mental health -- South Africa -- Eastern Cape Cultural psychiatry -- South Africa -- Eastern Cape Healers -- South Africa -- Eastern Cape , Ethnopsychology
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10353/2677 , vital:27983
- Description: Indigenous people tend to consult traditional healers when a family member manifests change in behaviour, whilst conventional treatment disregards spirituality when preserving mental health. The aim of the study was to explore the perceptions of indigenous people and the role of traditional healers in the management of mentally ill persons within the Cacadu District in the Eastern Cape Province of South Africa. The study has adopted a qualitative approach which was exploratory and descriptive in nature. The sample consisted of nine relatives of mental health care users (MHCUs) and six traditional healers. Ethical principles were also taken into consideration by the researcher during the process of conducting the study. Data were collected from two strata, namely, relatives of the MHCUs and the traditional healers and an interview guide was used to conduct in-depth face-to-face interviews. Data were analysed using Tesch’s method of data analysis. Four themes emerged from the data categories and sub categories were identified. According to the themes participants indicated the negative impact of mental illness; as a result they portrayed great desperation regarding the means of accessing a cure for mental illness. Some participants showed insufficient knowledge regarding mental illness and had different perceptions and beliefs regarding the origin of mental illness. Available literature was used to emphasise and support the views that were expressed by both traditional healers and relatives of MHCUs. It has been highlighted from this study that indigenous people of Cacadu District view mental illness as spiritual in origin but they include Western medication for the benefit of the mentally ill. In addition, the relatives of the MHCUs highlighted the economic burden as the major problem that results from mental illness.
- Full Text:
- Date Issued: 2015