Termination of employment contract by operation of law in the education sector: the constitutionality and validity of the deeming provisions
- Authors: Mpati, Lungisa
- Date: 2012
- Subjects: Employees -- Dismissal of -- Law and legislation -- South Africa , Labor contract -- South Africa , Unfair labor practices -- South Africa , Educational law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10200 , http://hdl.handle.net/10948/1600 , Employees -- Dismissal of -- Law and legislation -- South Africa , Labor contract -- South Africa , Unfair labor practices -- South Africa , Educational law and legislation -- South Africa
- Description: Fundamental to any contract of employment is the obligation that rests on an employee not to be absent from work without justification. Under the common law, if an employee did that, the employer would be entitled to dismiss him or her on notice. The International Labour Organization Convention (ILO) 158 of 1982 provides that the employer must have a reason for a dismissal and sets out broad categories or reasons for dismissals . Section 23 of the Constitution of the Republic of South Africa, 1996(Act 108 of 1998) provides that “Everyone has the right to fair labour practices”. Section 33 of the Constitution provides that “Everyone has the right to administrative action that is lawful, reasonable and procedurally fair. The Promotion of Administrative Justice Act 3 of 2000 (PAJA) is designed to give effect to just administrative action. Section 1 and 3 of the Labour Relations Act,1995(Act 66 of 1995)(LRA) require compliance with Article 7 and 8 of the ILO Convention 158 of 1982, when the employment of a worker has been terminated by his or her employer. The LRA protects employees against unfair dismissal. In the Department of Education, Section 14(1)(a) of the Employment of Educators Act, 1998 provides for the discharge of an educator in the event that he or she absents himself or herself from work for a period exceeding 14 consecutive days without the permission of the employer. A similar provision, Section 17(5)(a)(i) of the Public Service Act, 1994 provides for the discharge of an officer other than an educator who absents himself or herself from his or her official duties without the permission of the Head of Department for a period exceeding one calendar month. Section 14(2) of the Employment of Educators Act, 1998 and 17(5)(b) of the Public Service Act,1994 afford an employee who has been deemed discharged to show good cause why he or she should be reinstated. Against this background, the critical legal question is the constitutionality of the deeming provisions. The study will examine the validity of these provisions in relation to the ILO Conventions, Constitution, LRA and PAJA.
- Full Text:
- Date Issued: 2012
- Authors: Mpati, Lungisa
- Date: 2012
- Subjects: Employees -- Dismissal of -- Law and legislation -- South Africa , Labor contract -- South Africa , Unfair labor practices -- South Africa , Educational law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10200 , http://hdl.handle.net/10948/1600 , Employees -- Dismissal of -- Law and legislation -- South Africa , Labor contract -- South Africa , Unfair labor practices -- South Africa , Educational law and legislation -- South Africa
- Description: Fundamental to any contract of employment is the obligation that rests on an employee not to be absent from work without justification. Under the common law, if an employee did that, the employer would be entitled to dismiss him or her on notice. The International Labour Organization Convention (ILO) 158 of 1982 provides that the employer must have a reason for a dismissal and sets out broad categories or reasons for dismissals . Section 23 of the Constitution of the Republic of South Africa, 1996(Act 108 of 1998) provides that “Everyone has the right to fair labour practices”. Section 33 of the Constitution provides that “Everyone has the right to administrative action that is lawful, reasonable and procedurally fair. The Promotion of Administrative Justice Act 3 of 2000 (PAJA) is designed to give effect to just administrative action. Section 1 and 3 of the Labour Relations Act,1995(Act 66 of 1995)(LRA) require compliance with Article 7 and 8 of the ILO Convention 158 of 1982, when the employment of a worker has been terminated by his or her employer. The LRA protects employees against unfair dismissal. In the Department of Education, Section 14(1)(a) of the Employment of Educators Act, 1998 provides for the discharge of an educator in the event that he or she absents himself or herself from work for a period exceeding 14 consecutive days without the permission of the employer. A similar provision, Section 17(5)(a)(i) of the Public Service Act, 1994 provides for the discharge of an officer other than an educator who absents himself or herself from his or her official duties without the permission of the Head of Department for a period exceeding one calendar month. Section 14(2) of the Employment of Educators Act, 1998 and 17(5)(b) of the Public Service Act,1994 afford an employee who has been deemed discharged to show good cause why he or she should be reinstated. Against this background, the critical legal question is the constitutionality of the deeming provisions. The study will examine the validity of these provisions in relation to the ILO Conventions, Constitution, LRA and PAJA.
- Full Text:
- Date Issued: 2012
The "realisation company" concept in South African income tax law
- Authors: Grobler, Daniel Jacques
- Date: 2012
- Subjects: Income tax -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:8951 , http://hdl.handle.net/10948/2118 , Income tax -- South Africa
- Description: The Supreme Court of Appeal has revisited the issue that has attracted the most litigation in South African tax law: whether gains from the disposal of an asset are of a capital or of a revenue nature. In CSARS V Founders Hill (509/10) [2011] ZASCA 66, 73 SATC 183 the court held that „intention‟ is not conclusive in the enquiry and cannot be the litmus test in determining the nature of proceeds from the sale of an asset. This judgement relegates intention to only one of the factors to be considered as it was held that it should be considered objectively whether the taxpayer is actually trading or not. The court also indicated that a „realisation company‟ would only act on capital account if it is formed for the purpose of facilitating the realisation of property which could not otherwise be dealt with satisfactorily. This treatise was primarily aimed at an analysis of the court cases which dealt with the „realisation company‟ concept in South African income tax law. In analysing the „realisation company‟ concept through case law culminating in Founders Hill, it was found that in every instance where „realisation company‟ x had won the argument, there had been compelling reasons why the owners of the assets had found it necessary to realise the asset through an interposed company established for that purpose. These reasons include: to facilitate the sale of property previously held by different people and to consolidate and conveniently administer the interests of beneficiaries under different wills. Furthermore, this treatise criticised „intention‟ as the primary test in determining the nature of proceeds from the sale of a capital asset and examined the objective approach to the inquiry as advocated in CSARS v Founders Hill. A discussion on the advantages of this approach indicated that it will certainly obviate a number of difficulties that arise from invoking „intention‟ as the litmus test.
- Full Text:
- Date Issued: 2012
- Authors: Grobler, Daniel Jacques
- Date: 2012
- Subjects: Income tax -- South Africa
- Language: English
- Type: Thesis , Masters , MCom
- Identifier: vital:8951 , http://hdl.handle.net/10948/2118 , Income tax -- South Africa
- Description: The Supreme Court of Appeal has revisited the issue that has attracted the most litigation in South African tax law: whether gains from the disposal of an asset are of a capital or of a revenue nature. In CSARS V Founders Hill (509/10) [2011] ZASCA 66, 73 SATC 183 the court held that „intention‟ is not conclusive in the enquiry and cannot be the litmus test in determining the nature of proceeds from the sale of an asset. This judgement relegates intention to only one of the factors to be considered as it was held that it should be considered objectively whether the taxpayer is actually trading or not. The court also indicated that a „realisation company‟ would only act on capital account if it is formed for the purpose of facilitating the realisation of property which could not otherwise be dealt with satisfactorily. This treatise was primarily aimed at an analysis of the court cases which dealt with the „realisation company‟ concept in South African income tax law. In analysing the „realisation company‟ concept through case law culminating in Founders Hill, it was found that in every instance where „realisation company‟ x had won the argument, there had been compelling reasons why the owners of the assets had found it necessary to realise the asset through an interposed company established for that purpose. These reasons include: to facilitate the sale of property previously held by different people and to consolidate and conveniently administer the interests of beneficiaries under different wills. Furthermore, this treatise criticised „intention‟ as the primary test in determining the nature of proceeds from the sale of a capital asset and examined the objective approach to the inquiry as advocated in CSARS v Founders Hill. A discussion on the advantages of this approach indicated that it will certainly obviate a number of difficulties that arise from invoking „intention‟ as the litmus test.
- Full Text:
- Date Issued: 2012
The accelerated life cycle testing and modelling of Li-ion cells used in electric vehicle applications
- Authors: Rossouw, Claire Angela
- Date: 2012
- Subjects: Lithium Ions , Electric batteries , Energy storage , Electric vehicles -- Power supply
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10417 , http://hdl.handle.net/10948/d1012709 , Lithium Ions , Electric batteries , Energy storage , Electric vehicles -- Power supply
- Description: Li-ion batteries have become one of the chosen energy storage devices that are used in applications such as power tools, cellular phones and electric vehicles (EV). With the demand for portable high energy density devices, the rechargeable Li-ion battery has become one of the more viable energy storage systems for large scale commercial EVs because of their higher energy density to weight or volume ratio when compared to other current commercial battery energy storage systems. Various safety procedures for the use of Li-ion batteries in both consumer and EV applications have been developed by the international associations. The test procedures studied in this dissertation demonstrated the importance of determining the true capacity of a cell at various discharge rates. For this, the well known Peukert test was demonstrated. The study also showed that cells with different battery geometries and chemistries would demonstrate different thermal heating during discharge and slightly different Ragone results if different test methods were used as reported in the literature. Accelerated ageing tests were done on different cells at different Depth-of-Discharge (DoD) regions. The different DoD regions were determined according to expected stresses the electrode material in a cell would experience when discharged to specific DoD that follows the discharge voltage profile. Electrochemical Impedance Spectroscopy (EIS) was used to measure various electrochemical changes within these cells. The EIS results showed that certain observed modelled parameters would change similarly to the ageing of the cell as it aged due to the accelerated testing. EIS was also done on cells at different State-of-Charge (SoC) and temperatures. The results showed that EIS can be used as an effective technique to observe changes within a Li-ion cell as the SoC or temperature changed. For automotive vehicles that are powered by a fuel cell or battery, a supercapacitor can be coupled to a battery in order to increase and optimize the energy and power densities of the drive systems. A test procedure in the literature that evaluated the use of capacitors with Pb-acid batteries was applied to Li-ion type cells in order to quantify the increased power due to the use of a supercapacitor with a Li-ion cell. Both a cylindrical LiCoO2 cell and a VRLA Pb-acid cell showed some additional charge acceptance and delivery when connected to the supercapacitors. A LiMn2O4 pouch cell showed significant charge acceptance and delivery when connected to supercapacitors. The amount of additional charge acceptance and delivery of the different combinations could be explained by EIS, in particular, the resistance and capacitance of the cell in comparison to the combination of the cell and supercapacitor. A large capacity LiCoO2 cell showed high charge acceptance and delivery without connection with a supercapacitor. The study proved that EIS can be used to model the changes within cells under the different conditions and using different test procedures.
- Full Text:
- Date Issued: 2012
- Authors: Rossouw, Claire Angela
- Date: 2012
- Subjects: Lithium Ions , Electric batteries , Energy storage , Electric vehicles -- Power supply
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10417 , http://hdl.handle.net/10948/d1012709 , Lithium Ions , Electric batteries , Energy storage , Electric vehicles -- Power supply
- Description: Li-ion batteries have become one of the chosen energy storage devices that are used in applications such as power tools, cellular phones and electric vehicles (EV). With the demand for portable high energy density devices, the rechargeable Li-ion battery has become one of the more viable energy storage systems for large scale commercial EVs because of their higher energy density to weight or volume ratio when compared to other current commercial battery energy storage systems. Various safety procedures for the use of Li-ion batteries in both consumer and EV applications have been developed by the international associations. The test procedures studied in this dissertation demonstrated the importance of determining the true capacity of a cell at various discharge rates. For this, the well known Peukert test was demonstrated. The study also showed that cells with different battery geometries and chemistries would demonstrate different thermal heating during discharge and slightly different Ragone results if different test methods were used as reported in the literature. Accelerated ageing tests were done on different cells at different Depth-of-Discharge (DoD) regions. The different DoD regions were determined according to expected stresses the electrode material in a cell would experience when discharged to specific DoD that follows the discharge voltage profile. Electrochemical Impedance Spectroscopy (EIS) was used to measure various electrochemical changes within these cells. The EIS results showed that certain observed modelled parameters would change similarly to the ageing of the cell as it aged due to the accelerated testing. EIS was also done on cells at different State-of-Charge (SoC) and temperatures. The results showed that EIS can be used as an effective technique to observe changes within a Li-ion cell as the SoC or temperature changed. For automotive vehicles that are powered by a fuel cell or battery, a supercapacitor can be coupled to a battery in order to increase and optimize the energy and power densities of the drive systems. A test procedure in the literature that evaluated the use of capacitors with Pb-acid batteries was applied to Li-ion type cells in order to quantify the increased power due to the use of a supercapacitor with a Li-ion cell. Both a cylindrical LiCoO2 cell and a VRLA Pb-acid cell showed some additional charge acceptance and delivery when connected to the supercapacitors. A LiMn2O4 pouch cell showed significant charge acceptance and delivery when connected to supercapacitors. The amount of additional charge acceptance and delivery of the different combinations could be explained by EIS, in particular, the resistance and capacitance of the cell in comparison to the combination of the cell and supercapacitor. A large capacity LiCoO2 cell showed high charge acceptance and delivery without connection with a supercapacitor. The study proved that EIS can be used to model the changes within cells under the different conditions and using different test procedures.
- Full Text:
- Date Issued: 2012
The adequacy of national student financial aid scheme towards qualification completion at Nelson Mandela Metropolitan University
- Authors: Nzuzo, Nomakhaya Olivia
- Date: 2012
- Subjects: Student financial aid administration -- South Africa -- Port Elizabeth , Dropouts -- Prevention , Student aid -- South Africa -- Port Elizabeth , Nelson Mandela Metropolitan University
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:8291 , http://hdl.handle.net/10948/d1018686
- Description: NSFAS is a government-funded scheme that was established in 1996 with the objective of assisting financially needy students who are able to perform well academically, but are financially disadvantaged, and cannot afford higher education. The scheme was introduced as a mechanism to develop the country’s human capital and to also eradicate inequalities leading to poverty, crime, skill shortages and high levels of unemployment. This research was encouraged by the realization of the high drop-out rates amongst students funded by NSFAS. The research, therefore, wanted to investigate the adequacy of NSFAS in qualification completion, specifically at NMMU. In order to elicit responses from participants, a mixed method, with both quantitative and qualitative approaches was preferred. Questionnaires containing closed and open-ended questions were used as instruments for collecting data from participants. The study used a selected group of participants, with certain characteristics; and hence, the study was a purposive study. Five main areas were formulated as a framework to present the findings. The five areas involved the economic background of parents of NSFAS recipients, challenges faced by NSFAS recipients, as well as to determine whether NSFAS recipients were motivated to work hard as a result of attaining financial assistance. The last two areas involved reasons for NSFAS recipients to drop out and lastly the available support for NSFAS recipients. In relation to the economic background of parents of NSFAS recipients, findings revealed that almost 50 percent of their guardians were employed, with 26 percent of them being in skilled positions. The challenges faced by NSFAS recipients, were revealed, as being both academic and financial. About 52 percent of participants did not obtain full funding; and therefore, were expected to contribute towards their uncovered expenses. These participants were eventually faced with financial challenges that led them to drop out. To determine whether participants were motivated to work hard, as a result of acquiring financial assistance from NSFAS, about 52 percent of participants agreed to have received financial relief from NSFAS, but were not motivated to work hard. Findings revealed different reasons that led students funded by NSFAS to drop out before qualifying. The reasons included less Lecturer support (17.6 percent), unbearable workload (51.8 percent), bad qualification choice and financial challenges (21.4 percent). The last main area focused on available support from NSFAS as an Organisation to its recipients. Findings revealed no structured support system in place from NSFAS that was directed specifically to see its recipients succeed. Findings of the study can be used to identify students funded by NSFAS who might drop out before finishing their intended qualification. The findings could also guide NSFAS on what the student requirements are – in order to qualify. Recommendations on drop-out reductions and retention successes from local and international countries are provided. Further recommendations directed to NSFAS as a provider and it’s recipients are also provided.
- Full Text:
- Date Issued: 2012
- Authors: Nzuzo, Nomakhaya Olivia
- Date: 2012
- Subjects: Student financial aid administration -- South Africa -- Port Elizabeth , Dropouts -- Prevention , Student aid -- South Africa -- Port Elizabeth , Nelson Mandela Metropolitan University
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:8291 , http://hdl.handle.net/10948/d1018686
- Description: NSFAS is a government-funded scheme that was established in 1996 with the objective of assisting financially needy students who are able to perform well academically, but are financially disadvantaged, and cannot afford higher education. The scheme was introduced as a mechanism to develop the country’s human capital and to also eradicate inequalities leading to poverty, crime, skill shortages and high levels of unemployment. This research was encouraged by the realization of the high drop-out rates amongst students funded by NSFAS. The research, therefore, wanted to investigate the adequacy of NSFAS in qualification completion, specifically at NMMU. In order to elicit responses from participants, a mixed method, with both quantitative and qualitative approaches was preferred. Questionnaires containing closed and open-ended questions were used as instruments for collecting data from participants. The study used a selected group of participants, with certain characteristics; and hence, the study was a purposive study. Five main areas were formulated as a framework to present the findings. The five areas involved the economic background of parents of NSFAS recipients, challenges faced by NSFAS recipients, as well as to determine whether NSFAS recipients were motivated to work hard as a result of attaining financial assistance. The last two areas involved reasons for NSFAS recipients to drop out and lastly the available support for NSFAS recipients. In relation to the economic background of parents of NSFAS recipients, findings revealed that almost 50 percent of their guardians were employed, with 26 percent of them being in skilled positions. The challenges faced by NSFAS recipients, were revealed, as being both academic and financial. About 52 percent of participants did not obtain full funding; and therefore, were expected to contribute towards their uncovered expenses. These participants were eventually faced with financial challenges that led them to drop out. To determine whether participants were motivated to work hard, as a result of acquiring financial assistance from NSFAS, about 52 percent of participants agreed to have received financial relief from NSFAS, but were not motivated to work hard. Findings revealed different reasons that led students funded by NSFAS to drop out before qualifying. The reasons included less Lecturer support (17.6 percent), unbearable workload (51.8 percent), bad qualification choice and financial challenges (21.4 percent). The last main area focused on available support from NSFAS as an Organisation to its recipients. Findings revealed no structured support system in place from NSFAS that was directed specifically to see its recipients succeed. Findings of the study can be used to identify students funded by NSFAS who might drop out before finishing their intended qualification. The findings could also guide NSFAS on what the student requirements are – in order to qualify. Recommendations on drop-out reductions and retention successes from local and international countries are provided. Further recommendations directed to NSFAS as a provider and it’s recipients are also provided.
- Full Text:
- Date Issued: 2012
The AIDS of aid?: long-term organisation challenges of a CBO dealing with HIV/AIDS, poverty and donor aid
- Authors: Shelver, Amy
- Date: 2012
- Subjects: Communicable diseases -- Prevention , Public health -- International cooperation , Economic assistance, Domestic , Community-based social services , AIDS (Disease) -- Prevention , HIV infections -- Prevention , Nonprofit organizations
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9103 , http://hdl.handle.net/10948/d1012321 , Communicable diseases -- Prevention , Public health -- International cooperation , Economic assistance, Domestic , Community-based social services , AIDS (Disease) -- Prevention , HIV infections -- Prevention , Nonprofit organizations
- Description: The following treatise first frames the role of CBOs in responding to the HIV/Aids crisis in relation to their position in the global health governance system through a literature survey that moves from an analysis of the global structures down to the local. The survey covers the role of international organisations, international NGOs (INGOs), national governments, local NGOs and CBOs and outlines the context in which Masizakhe is working within the global health governance structure. Secondly the research design and methodology are outlined focusing on the longitudinal, case study and participant--‐observation approaches. Hypotheses, conceptualisation, definitions, key variables are described and data collection methods and fieldwork practice extrapolated upon. Following that data capturing, editing and analysis are discussed in conjunction with shortcomings and sources of error. In the fourth chapter the research discusses the history, structure and outlines the research findings by comparing what has changed within the organisation over time, presenting and discussing the results. The outcomes of this research have shown that existing problems in this particular CBO are very difficult to overcome without committed, sustained support from donors, government, community and the organisation’s members. CBOs are often hamstrung by a series of intersecting factors which hamper their ability to problem--‐solve, even when the route to overcoming the problem is clear, particularly when the capacity and will to do so is not always present from both within the organisation and from outside support systems. These challenges then impact on the overall quality of and ability to deliver the services the organisation is structured to deliver. The major challenge for the organisation remains the inconsistent donor cycle and resultant instability thus created within an organisation already working in a highly volatile, unstable situation marked by poverty and disease. Thus the title, The Aids of Aid?, captures the essence of Masizakhe’s struggle with its own syndrome of problems. It summarises a comment made by the project secretary said that: “Sometimes it feels like we are not only fighting for the health of our people – We are fighting for the health of our organisation. We are a sick organisation trying to help sick people. All we need is donors and funding –we can’t live without them, and when they don't give, we get sick” (Stamper, Pers Comm, 2011). The other emergent challenges were a battle internally with ‘founder syndrome’, lack of management transparency and a dysfunctional board.
- Full Text:
- Date Issued: 2012
- Authors: Shelver, Amy
- Date: 2012
- Subjects: Communicable diseases -- Prevention , Public health -- International cooperation , Economic assistance, Domestic , Community-based social services , AIDS (Disease) -- Prevention , HIV infections -- Prevention , Nonprofit organizations
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9103 , http://hdl.handle.net/10948/d1012321 , Communicable diseases -- Prevention , Public health -- International cooperation , Economic assistance, Domestic , Community-based social services , AIDS (Disease) -- Prevention , HIV infections -- Prevention , Nonprofit organizations
- Description: The following treatise first frames the role of CBOs in responding to the HIV/Aids crisis in relation to their position in the global health governance system through a literature survey that moves from an analysis of the global structures down to the local. The survey covers the role of international organisations, international NGOs (INGOs), national governments, local NGOs and CBOs and outlines the context in which Masizakhe is working within the global health governance structure. Secondly the research design and methodology are outlined focusing on the longitudinal, case study and participant--‐observation approaches. Hypotheses, conceptualisation, definitions, key variables are described and data collection methods and fieldwork practice extrapolated upon. Following that data capturing, editing and analysis are discussed in conjunction with shortcomings and sources of error. In the fourth chapter the research discusses the history, structure and outlines the research findings by comparing what has changed within the organisation over time, presenting and discussing the results. The outcomes of this research have shown that existing problems in this particular CBO are very difficult to overcome without committed, sustained support from donors, government, community and the organisation’s members. CBOs are often hamstrung by a series of intersecting factors which hamper their ability to problem--‐solve, even when the route to overcoming the problem is clear, particularly when the capacity and will to do so is not always present from both within the organisation and from outside support systems. These challenges then impact on the overall quality of and ability to deliver the services the organisation is structured to deliver. The major challenge for the organisation remains the inconsistent donor cycle and resultant instability thus created within an organisation already working in a highly volatile, unstable situation marked by poverty and disease. Thus the title, The Aids of Aid?, captures the essence of Masizakhe’s struggle with its own syndrome of problems. It summarises a comment made by the project secretary said that: “Sometimes it feels like we are not only fighting for the health of our people – We are fighting for the health of our organisation. We are a sick organisation trying to help sick people. All we need is donors and funding –we can’t live without them, and when they don't give, we get sick” (Stamper, Pers Comm, 2011). The other emergent challenges were a battle internally with ‘founder syndrome’, lack of management transparency and a dysfunctional board.
- Full Text:
- Date Issued: 2012
The allelopathic potential of Arctotis Arctotoides (L.f.) O. Hoffm on some vegetables
- Authors: Badmus, Abimbola Adesile
- Date: 2012
- Subjects: Allelopathy , Allelopathic agents , Vegetables -- Microbiology , Enzyme inhibitors
- Language: English
- Type: Thesis , Doctoral , PhD (Botany)
- Identifier: vital:11306 , http://hdl.handle.net/10353/454 , Allelopathy , Allelopathic agents , Vegetables -- Microbiology , Enzyme inhibitors
- Description: Laboratory and greenhouse experiments were conducted to evaluate the allelopathic effects of the extracts and residue Arctotis arctotoides (L.f.) O. Hoffm on selected vegetable crops. The study aimed to address the following specific objectives to (i) examine the ultra structures of the leaf of A. arctotoides using the Scanning Electron Microscope (SEM), (ii) carry out comprehensive qualitative and quantitative phytochemical analysis of the root and shoot materials of the plant, (iii) investigate the allelopathic activities of the root and shoot aqueous extracts of A. arctotoides at concentrations of 10, 8, 6, 4 and 2 mg/ml on germination, radicle and plumule growth of cabbage, carrot, tomato and spinach, (iv) evaluate the inhibitory effects of the dried shoot residue of the plant at 10, 20 and 40 g kg-3 of soil (treatments B, C and D) and the control (treatment A) on the morphology, growth and chlorophyll pigment content of tomato and cabbage transplants at 1, 2, 3 and 4 weeks after transplanting and (v) assess the effects of the dried shoot residue of A. arctotoides on the yield, nutrient uptake by the leaves of tomato and cabbage at 4 and 12 weeks after transplanting. Finally, to analyze the residual mineral content of the soils with tomato and cabbage transplants at 12 weeks after transplanting. The the SEM revealed that anisocytic stomata and glandular trichomes (GTs) were numerous on the abaxial than the adaxial surfaces of A. arctotoides. The non glandular trichomes (NGTs) were also present on both surfaces but lesser on the abaxial. Morphologically, the GTs were peltate, uniseriate and globular head while the NGTs were cylindrical and filamentous with variable number of cells at the basal portion. The energy dispersive X-ray spectroscopy of some crystals showed that Na+ Mg2+ and Ca2+ were the major constituents of the crystal deposit found around the GTs and stomata. The results of the phytochemical composition of the root and shoot extracts of A. arctotoides confirmed the occurrence of alkaloids, flavonoids, phenolics, saponnins, tannins and triterpenes as the common constituents. In addition, cardiac glycosides and steroids were also detected in the shoot of the A. arctotoides. Quantitative estimation of the chemical constituents of the crude extracts further revealed that the alkaloid content in the root higher (0.97 percent) than the shoot (0.64 percent). The quantity of flavonoids detected in the shoot (1.02 percent) was more than that observed in the root (0.35 percent). Others (phenolics and tannins) were marginal in the two plant parts. The results of the inhibitory effects of the root and shoot aqueous extract at the varying concentrations showed that root extract at 10 mg/ml considerably reduced the germination of cabbage, carrot, tomato and spinach seeds by 84.0, 83.2, 72.8 and 37.4 percent respectively. Incubation of the shoot extract at the same concentration resulted in 100 percent inhibition of cabbage and carrot seed germination whereas those of tomato and spinach were suppressed by 91.5 and 61.2 percent respectively. The two extracts at the varying concentrations also had a significant reduction on the radicle and plumule growth of the four vegetables. Addition of the shoot residue to the soil showed massive chlorosis, necrotic lesions and wilting of tomato and cabbage leaves under treatments C and D at 2 weeks after transplanting. The number of leaves, leaf area, dry shoot and root weight of the two vegetables grown in the amended soils were also drastically reduced. The inhibition percentages due to the addition of the three concentrations of A. arctotoides dried shoot residue on the dry shoot weight at 4 weeks after transplanting were 38.6, 45.5 and 70.3. for tomato and 57.5, 73.3 and 87.5 percent for cabbage. Similarly, the declines in the dry root weight of 61.3, 82.9.4 and 83.4 percent for tomato as well as 53.1, 54.7 and 67.2 percent for cabbages were recorded for the two vegetables under treatment B, C and D during the period. The results further showed that the dry fruit yield and shoot weight of tomato under the treatments B, C and D decreased with increase in shoot residue concentrations of A. arctotoides. Relative to treatment A, no significant differences were recorded in the dry head weight of cabbage under the residue treated groups. The reductions in the fruit yield and fresh head weight caused by treatments C and D were 37.2 and 84.8 percent for tomato and 30.9 and 72.4 percent for cabbage. The findings on the mineral contents in the leaves of the two vegetables revealed significant differences in the uptake of N, Mg, Na, Cu and Fe by tomato leaves. The concentrations of N, K, Na and Zn in cabbage leaves also differed. However, the P content was relatively constant in the leaves of the two vegetables at 4 and 12 weeks after transplanting. At 12 weeks after transplanting, the Fe content in soils with tomato and cabbage treatments C and D was greatly enhanced in comparison with the other nutrients. The residual N, P and Zn detected in soils planted to cabbage were similarly equal among all the groups including the control. Thus, under the greenhouse experiment, Arctotis arctotoides (L.f) O. Hoffm has been shown to contain some phytotoxic chemical compounds in its root and shoot materials. The compounds either singly or collectively have demonstrated some inhibitory potentials on the germination, growth and yields of cabbage, carrot, tomato and spinach evaluated in this study.
- Full Text:
- Date Issued: 2012
- Authors: Badmus, Abimbola Adesile
- Date: 2012
- Subjects: Allelopathy , Allelopathic agents , Vegetables -- Microbiology , Enzyme inhibitors
- Language: English
- Type: Thesis , Doctoral , PhD (Botany)
- Identifier: vital:11306 , http://hdl.handle.net/10353/454 , Allelopathy , Allelopathic agents , Vegetables -- Microbiology , Enzyme inhibitors
- Description: Laboratory and greenhouse experiments were conducted to evaluate the allelopathic effects of the extracts and residue Arctotis arctotoides (L.f.) O. Hoffm on selected vegetable crops. The study aimed to address the following specific objectives to (i) examine the ultra structures of the leaf of A. arctotoides using the Scanning Electron Microscope (SEM), (ii) carry out comprehensive qualitative and quantitative phytochemical analysis of the root and shoot materials of the plant, (iii) investigate the allelopathic activities of the root and shoot aqueous extracts of A. arctotoides at concentrations of 10, 8, 6, 4 and 2 mg/ml on germination, radicle and plumule growth of cabbage, carrot, tomato and spinach, (iv) evaluate the inhibitory effects of the dried shoot residue of the plant at 10, 20 and 40 g kg-3 of soil (treatments B, C and D) and the control (treatment A) on the morphology, growth and chlorophyll pigment content of tomato and cabbage transplants at 1, 2, 3 and 4 weeks after transplanting and (v) assess the effects of the dried shoot residue of A. arctotoides on the yield, nutrient uptake by the leaves of tomato and cabbage at 4 and 12 weeks after transplanting. Finally, to analyze the residual mineral content of the soils with tomato and cabbage transplants at 12 weeks after transplanting. The the SEM revealed that anisocytic stomata and glandular trichomes (GTs) were numerous on the abaxial than the adaxial surfaces of A. arctotoides. The non glandular trichomes (NGTs) were also present on both surfaces but lesser on the abaxial. Morphologically, the GTs were peltate, uniseriate and globular head while the NGTs were cylindrical and filamentous with variable number of cells at the basal portion. The energy dispersive X-ray spectroscopy of some crystals showed that Na+ Mg2+ and Ca2+ were the major constituents of the crystal deposit found around the GTs and stomata. The results of the phytochemical composition of the root and shoot extracts of A. arctotoides confirmed the occurrence of alkaloids, flavonoids, phenolics, saponnins, tannins and triterpenes as the common constituents. In addition, cardiac glycosides and steroids were also detected in the shoot of the A. arctotoides. Quantitative estimation of the chemical constituents of the crude extracts further revealed that the alkaloid content in the root higher (0.97 percent) than the shoot (0.64 percent). The quantity of flavonoids detected in the shoot (1.02 percent) was more than that observed in the root (0.35 percent). Others (phenolics and tannins) were marginal in the two plant parts. The results of the inhibitory effects of the root and shoot aqueous extract at the varying concentrations showed that root extract at 10 mg/ml considerably reduced the germination of cabbage, carrot, tomato and spinach seeds by 84.0, 83.2, 72.8 and 37.4 percent respectively. Incubation of the shoot extract at the same concentration resulted in 100 percent inhibition of cabbage and carrot seed germination whereas those of tomato and spinach were suppressed by 91.5 and 61.2 percent respectively. The two extracts at the varying concentrations also had a significant reduction on the radicle and plumule growth of the four vegetables. Addition of the shoot residue to the soil showed massive chlorosis, necrotic lesions and wilting of tomato and cabbage leaves under treatments C and D at 2 weeks after transplanting. The number of leaves, leaf area, dry shoot and root weight of the two vegetables grown in the amended soils were also drastically reduced. The inhibition percentages due to the addition of the three concentrations of A. arctotoides dried shoot residue on the dry shoot weight at 4 weeks after transplanting were 38.6, 45.5 and 70.3. for tomato and 57.5, 73.3 and 87.5 percent for cabbage. Similarly, the declines in the dry root weight of 61.3, 82.9.4 and 83.4 percent for tomato as well as 53.1, 54.7 and 67.2 percent for cabbages were recorded for the two vegetables under treatment B, C and D during the period. The results further showed that the dry fruit yield and shoot weight of tomato under the treatments B, C and D decreased with increase in shoot residue concentrations of A. arctotoides. Relative to treatment A, no significant differences were recorded in the dry head weight of cabbage under the residue treated groups. The reductions in the fruit yield and fresh head weight caused by treatments C and D were 37.2 and 84.8 percent for tomato and 30.9 and 72.4 percent for cabbage. The findings on the mineral contents in the leaves of the two vegetables revealed significant differences in the uptake of N, Mg, Na, Cu and Fe by tomato leaves. The concentrations of N, K, Na and Zn in cabbage leaves also differed. However, the P content was relatively constant in the leaves of the two vegetables at 4 and 12 weeks after transplanting. At 12 weeks after transplanting, the Fe content in soils with tomato and cabbage treatments C and D was greatly enhanced in comparison with the other nutrients. The residual N, P and Zn detected in soils planted to cabbage were similarly equal among all the groups including the control. Thus, under the greenhouse experiment, Arctotis arctotoides (L.f) O. Hoffm has been shown to contain some phytotoxic chemical compounds in its root and shoot materials. The compounds either singly or collectively have demonstrated some inhibitory potentials on the germination, growth and yields of cabbage, carrot, tomato and spinach evaluated in this study.
- Full Text:
- Date Issued: 2012
The analysis of the strain level and the predicted human error probability for critical hospital tasks
- Authors: Burford, Eva-Maria
- Date: 2012
- Subjects: Nursing errors -- South Africa -- Prevention , Nursing -- South Africa -- Psychological aspects , Hospitals -- Employees -- Health and hygiene -- South Africa , Nursing -- Job stress -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5104 , http://hdl.handle.net/10962/d1005182 , Nursing errors -- South Africa -- Prevention , Nursing -- South Africa -- Psychological aspects , Hospitals -- Employees -- Health and hygiene -- South Africa , Nursing -- Job stress -- South Africa
- Description: South African hospitals, as a result of numerous factors, have the problem of an increasing workload for nursing staff, which in turn may affect patient treatment quality. This project aimed at addressing patient treatment quality specifically from the perspective of worker capabilities by investigating the strain level and predicted human error probability associated with specific patient-centered tasks in the South African health care sector. This was achieved through two independent yet interlinked studies which focused on seven patient-centred tasks. The tasks analysed were the tasks of setting up and changing intravenous medication, administering injection and pill medication, measuring blood glucose, temperature and heart rate and blood pressure. In the first study, work environment and task characteristics, task structure and execution were analysed. In addition to the task execution, the resulting strain levels, in the form of heart rate measures and subjective ratings of workload, were studied. The second study determined the error protocols and predictive error probability within the healthcare environment for the seven pre-defined tasks. The results for the first study established that different organizational and environment factors could affect task complexity and workload. The individual task components and information processing requirements for each task was also established. For the strain analysis, significant results for the tasks were determined for heart rate frequency and the heart rate variability measures, but some of these were contradictory. For the second study, specific error protocols and error reporting data were determined for the hospital where this research was conducted. Additionally the predictive error probability for the pre-defined tasks was determined. This combined approach and collective results indicate that strain and predictive error probability as a result of task workload can be determined in the field as well as being able to identify which factors have an effect on task strain and error probability. The value of this research lies in the foundation that the gathered information provides and the numerous potential applications of this data. These applications include providing recommendations aimed at improving nursing work environment with regards to workload, improving patient treatment as a result of a reduction in errors and the potential foundation these results provide for future research
- Full Text:
- Date Issued: 2012
- Authors: Burford, Eva-Maria
- Date: 2012
- Subjects: Nursing errors -- South Africa -- Prevention , Nursing -- South Africa -- Psychological aspects , Hospitals -- Employees -- Health and hygiene -- South Africa , Nursing -- Job stress -- South Africa
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:5104 , http://hdl.handle.net/10962/d1005182 , Nursing errors -- South Africa -- Prevention , Nursing -- South Africa -- Psychological aspects , Hospitals -- Employees -- Health and hygiene -- South Africa , Nursing -- Job stress -- South Africa
- Description: South African hospitals, as a result of numerous factors, have the problem of an increasing workload for nursing staff, which in turn may affect patient treatment quality. This project aimed at addressing patient treatment quality specifically from the perspective of worker capabilities by investigating the strain level and predicted human error probability associated with specific patient-centered tasks in the South African health care sector. This was achieved through two independent yet interlinked studies which focused on seven patient-centred tasks. The tasks analysed were the tasks of setting up and changing intravenous medication, administering injection and pill medication, measuring blood glucose, temperature and heart rate and blood pressure. In the first study, work environment and task characteristics, task structure and execution were analysed. In addition to the task execution, the resulting strain levels, in the form of heart rate measures and subjective ratings of workload, were studied. The second study determined the error protocols and predictive error probability within the healthcare environment for the seven pre-defined tasks. The results for the first study established that different organizational and environment factors could affect task complexity and workload. The individual task components and information processing requirements for each task was also established. For the strain analysis, significant results for the tasks were determined for heart rate frequency and the heart rate variability measures, but some of these were contradictory. For the second study, specific error protocols and error reporting data were determined for the hospital where this research was conducted. Additionally the predictive error probability for the pre-defined tasks was determined. This combined approach and collective results indicate that strain and predictive error probability as a result of task workload can be determined in the field as well as being able to identify which factors have an effect on task strain and error probability. The value of this research lies in the foundation that the gathered information provides and the numerous potential applications of this data. These applications include providing recommendations aimed at improving nursing work environment with regards to workload, improving patient treatment as a result of a reduction in errors and the potential foundation these results provide for future research
- Full Text:
- Date Issued: 2012
The assessment of the international organisations high performance strategy, through global business unit managers
- Authors: Van den Heever, Andette
- Date: 2012
- Subjects: Organisation Effectiviness , Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8837 , http://hdl.handle.net/10948/d1019966
- Description: In today’s competitive global environment it is vital for businesses to continuously outperform their competitors, making each business more and more dependent upon product quality and the ability to adjust rapidly to change. To survive, businesses more and more depend on the creativity, initiative and problem-solving abilities of their employees. The research in this treatise will focus on the components of a high performance organisation, when assessing the international high performance strategy of Company A, developed by top management. The implementation of Company A’s strategy relies on how well the organisation fosters an environment which is conducive to high performance. At this stage it is not clear if the chosen strategy will succeed and direct the organisation towards sustainable high performance in the long run. Hence, the research question, which is the crux of this study, is to assess the effectiveness of Company A’s international high performance strategy in creating a sustainable high performance organisation in the long run. To achieve the primary objective of this research study, the researcher compared various prominent models of high performance organisations with one another. Despite the limitations, the researcher believes that the significance of De Waal’s model is that he managed to identify the factors involved in creating a high performance organisation. Based on the quantitative and qualitative comparisons, the researcher decided to use the research conducted by De Waal as the framework for the basis of this study. The Delphi Technique was used to identify the effectiveness of the strategy through a consensus seeking and commitment building process. Contrary to expectations, the empirical results indicated that Company A’s strategy does clearly indicate a high percentage of effectiveness. Although it definitely indicates that there is still a long road ahead of Company A to reach ultimate sustainable high performance, it definitely is on the right track. The research highlighted a few areas of concern, but with continuous adjustment and alignment of their strategy Company A would have a solid framework to work towards high performance in the long run.
- Full Text:
- Date Issued: 2012
- Authors: Van den Heever, Andette
- Date: 2012
- Subjects: Organisation Effectiviness , Management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8837 , http://hdl.handle.net/10948/d1019966
- Description: In today’s competitive global environment it is vital for businesses to continuously outperform their competitors, making each business more and more dependent upon product quality and the ability to adjust rapidly to change. To survive, businesses more and more depend on the creativity, initiative and problem-solving abilities of their employees. The research in this treatise will focus on the components of a high performance organisation, when assessing the international high performance strategy of Company A, developed by top management. The implementation of Company A’s strategy relies on how well the organisation fosters an environment which is conducive to high performance. At this stage it is not clear if the chosen strategy will succeed and direct the organisation towards sustainable high performance in the long run. Hence, the research question, which is the crux of this study, is to assess the effectiveness of Company A’s international high performance strategy in creating a sustainable high performance organisation in the long run. To achieve the primary objective of this research study, the researcher compared various prominent models of high performance organisations with one another. Despite the limitations, the researcher believes that the significance of De Waal’s model is that he managed to identify the factors involved in creating a high performance organisation. Based on the quantitative and qualitative comparisons, the researcher decided to use the research conducted by De Waal as the framework for the basis of this study. The Delphi Technique was used to identify the effectiveness of the strategy through a consensus seeking and commitment building process. Contrary to expectations, the empirical results indicated that Company A’s strategy does clearly indicate a high percentage of effectiveness. Although it definitely indicates that there is still a long road ahead of Company A to reach ultimate sustainable high performance, it definitely is on the right track. The research highlighted a few areas of concern, but with continuous adjustment and alignment of their strategy Company A would have a solid framework to work towards high performance in the long run.
- Full Text:
- Date Issued: 2012
The biota of the Swartkops Solar Saltworks and their potential for producing biofuels
- Authors: De Lauwere, Monique Simone
- Date: 2012
- Subjects: Organisms , Biomass energy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10625 , http://hdl.handle.net/10948/d1011657 , Organisms , Biomass energy
- Description: The Swartkops and Missionvale salinas in Port Elizabeth on the east coast of South Africa are surrounding by large informal settlements. The runoff from these settlements contributes largely to the eutrophication of the solar saltworks which in turn has an effect on the biotic functioning of the systems, ultimately affecting the quantity and quality of the salt produced. Inorganic nutrients and organic composition, as well as important biological groups were examined within the brine with the aim of comparing the current condition of the same salinas to their condition twelve years ago. Comparisons between inorganic nutrient concentrations and biological groups showed significantly higher inorganic nutrients, with chlorophyll a concentrations in the Swartkops salina in 2011 being significantly higher than in 2012 and the 1999 and 2011 chlorophyll a concentrations being significantly higher than 2012 in the Missionvale salina. Microalgae found in the salinas were cultured in four different growth media. Cells were stained with Nile Red fluorescent dye in order to estimate the extent of lipids production. Five of the most promising lipid producing species were isolated into a monoculture and grown at different salinities to establish the growth and lipid production in response to salinity. Halamphora coffeaeformis and Navicula sp. were found to be the best candidate species. They grew best at salinities between 50 and 70 psu and produced lipid vesicles consuming approximately 10 percent of the cell.
- Full Text:
- Date Issued: 2012
- Authors: De Lauwere, Monique Simone
- Date: 2012
- Subjects: Organisms , Biomass energy
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10625 , http://hdl.handle.net/10948/d1011657 , Organisms , Biomass energy
- Description: The Swartkops and Missionvale salinas in Port Elizabeth on the east coast of South Africa are surrounding by large informal settlements. The runoff from these settlements contributes largely to the eutrophication of the solar saltworks which in turn has an effect on the biotic functioning of the systems, ultimately affecting the quantity and quality of the salt produced. Inorganic nutrients and organic composition, as well as important biological groups were examined within the brine with the aim of comparing the current condition of the same salinas to their condition twelve years ago. Comparisons between inorganic nutrient concentrations and biological groups showed significantly higher inorganic nutrients, with chlorophyll a concentrations in the Swartkops salina in 2011 being significantly higher than in 2012 and the 1999 and 2011 chlorophyll a concentrations being significantly higher than 2012 in the Missionvale salina. Microalgae found in the salinas were cultured in four different growth media. Cells were stained with Nile Red fluorescent dye in order to estimate the extent of lipids production. Five of the most promising lipid producing species were isolated into a monoculture and grown at different salinities to establish the growth and lipid production in response to salinity. Halamphora coffeaeformis and Navicula sp. were found to be the best candidate species. They grew best at salinities between 50 and 70 psu and produced lipid vesicles consuming approximately 10 percent of the cell.
- Full Text:
- Date Issued: 2012
The Business Trust and its role as an entity in the financial environment
- Authors: Nel, Ebenhaeser Cornelis
- Date: 2012
- Subjects: Trusts and trustees -- South Africa , Corporations -- Taxation -- Law and legislation -- South Africa , Asset-backed financing -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: vital:10250 , http://hdl.handle.net/10948/d1020175
- Description: The trust figure in South Africa has undergone an interesting process of evolution during the last century – from a mere gratuity or private tax evasion tool to a proper family protection, business entity, investment, and structured finance vehicle. Its flexibility and multi-functionality positioned the trust as an ideal legal institution for many innovative ideas in the search for holistic business structures, economic empowerment transactions, general estate planning and risk protection initiatives, and ultimately, its application as financial instrument and structured finance entity. The development of both traditional and synthetic securitisation schemes in South Africa has been investigated, with some emphasis on the application of the special purpose institution, which may be in trust form. It is submitted that the application of the trust figure has developed without any significant contribution from the local legislator. A sound legal and regulatory framework is crucial for the creation of a strong future environment for legal and financial vehicles. The question is, however, whether the current South African legal framework for the application of the business trust, and also as a vehicle for financial instruments, is adequately sound and robust in light of the standards set in the international business and financial environment. It is submitted that the hybrid nature of the South African legal landscape is conducive for the development of sound legal systems in an ever-changing legal and economic reality. It is further submitted that in the development of proper legal frameworks, South Africa should position itself particularly in its context as a Southern African developing democracy. The South African trust development is compared with that of some foreign jurisdictions as well as with international conventions and treaties of relevance. Some recommendations for necessary changes are made and it is submitted that such future development of the trust figure should not take place haphazardly, but within the context of a structured regulatory model.
- Full Text:
- Date Issued: 2012
- Authors: Nel, Ebenhaeser Cornelis
- Date: 2012
- Subjects: Trusts and trustees -- South Africa , Corporations -- Taxation -- Law and legislation -- South Africa , Asset-backed financing -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Doctoral , LLD
- Identifier: vital:10250 , http://hdl.handle.net/10948/d1020175
- Description: The trust figure in South Africa has undergone an interesting process of evolution during the last century – from a mere gratuity or private tax evasion tool to a proper family protection, business entity, investment, and structured finance vehicle. Its flexibility and multi-functionality positioned the trust as an ideal legal institution for many innovative ideas in the search for holistic business structures, economic empowerment transactions, general estate planning and risk protection initiatives, and ultimately, its application as financial instrument and structured finance entity. The development of both traditional and synthetic securitisation schemes in South Africa has been investigated, with some emphasis on the application of the special purpose institution, which may be in trust form. It is submitted that the application of the trust figure has developed without any significant contribution from the local legislator. A sound legal and regulatory framework is crucial for the creation of a strong future environment for legal and financial vehicles. The question is, however, whether the current South African legal framework for the application of the business trust, and also as a vehicle for financial instruments, is adequately sound and robust in light of the standards set in the international business and financial environment. It is submitted that the hybrid nature of the South African legal landscape is conducive for the development of sound legal systems in an ever-changing legal and economic reality. It is further submitted that in the development of proper legal frameworks, South Africa should position itself particularly in its context as a Southern African developing democracy. The South African trust development is compared with that of some foreign jurisdictions as well as with international conventions and treaties of relevance. Some recommendations for necessary changes are made and it is submitted that such future development of the trust figure should not take place haphazardly, but within the context of a structured regulatory model.
- Full Text:
- Date Issued: 2012
The columnist as trickster: satire and subversion in literary journalism
- Authors: Douglas, Greig
- Date: 2012
- Subjects: Satire , Race relations , Journalism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8387 , http://hdl.handle.net/10948/d1008397 , Satire , Race relations , Journalism
- Description: This project examines facets of racial identity as they emerge in a contemporary South African context, and considers how instances of local satire both subtly resist and support white normativity. It consists of two separate sections: firstly, a self-reflective essay that, employing current theories from the academic field of whiteness studies, assesses South African satire’s relation to and negotiation of race and identity politics; and secondly, The Weekly Crab, my own creative response to the genre of satire. Using contemporary theories of racial construction, the first section will delineate whiteness as a dominant but invisible identification, and as a social construction underpinned by an inherited and continually reproduced privilege. Satire, in turn, will be described as a mode of rhetorical and conceptual attack that is capable of cultivating an understanding of how whiteness functions as a cultural construct, as well as foster a sensitivity to how its cultural dynamics shape and inform racial politics in the South African context. The first section will identify the website Hayibo.com as a source of local satire whose satirising of current events is often complicit in the perpetuation of white normativity. I will point to moments in its work where white expectations, fears and social mores are left unexamined, and, indeed, become an unspoken part of their critiquing lens rather than the focus of it. An accompanying critical breakdown of my own satire in The Weekly Crab will show my work to be a countertext to Hayibo. As I will make clear, I am not saying that I successfully fill a gap in the landscape of South African satire. Instead, in comparing my work to the satire that Hayibo produces, and by providing, in the second section, a creative response to that particular approach to satire, I am trying to circumscribe a blind spot in South African literary journalism : that is, the paucity of satire that aggressively subverts the normativity of whiteness.
- Full Text:
- Date Issued: 2012
- Authors: Douglas, Greig
- Date: 2012
- Subjects: Satire , Race relations , Journalism
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:8387 , http://hdl.handle.net/10948/d1008397 , Satire , Race relations , Journalism
- Description: This project examines facets of racial identity as they emerge in a contemporary South African context, and considers how instances of local satire both subtly resist and support white normativity. It consists of two separate sections: firstly, a self-reflective essay that, employing current theories from the academic field of whiteness studies, assesses South African satire’s relation to and negotiation of race and identity politics; and secondly, The Weekly Crab, my own creative response to the genre of satire. Using contemporary theories of racial construction, the first section will delineate whiteness as a dominant but invisible identification, and as a social construction underpinned by an inherited and continually reproduced privilege. Satire, in turn, will be described as a mode of rhetorical and conceptual attack that is capable of cultivating an understanding of how whiteness functions as a cultural construct, as well as foster a sensitivity to how its cultural dynamics shape and inform racial politics in the South African context. The first section will identify the website Hayibo.com as a source of local satire whose satirising of current events is often complicit in the perpetuation of white normativity. I will point to moments in its work where white expectations, fears and social mores are left unexamined, and, indeed, become an unspoken part of their critiquing lens rather than the focus of it. An accompanying critical breakdown of my own satire in The Weekly Crab will show my work to be a countertext to Hayibo. As I will make clear, I am not saying that I successfully fill a gap in the landscape of South African satire. Instead, in comparing my work to the satire that Hayibo produces, and by providing, in the second section, a creative response to that particular approach to satire, I am trying to circumscribe a blind spot in South African literary journalism : that is, the paucity of satire that aggressively subverts the normativity of whiteness.
- Full Text:
- Date Issued: 2012
The competitiveness of the South African citrus industry in the face of the changing global health and environmental standards
- Authors: Ndou, Portia
- Date: 2012
- Subjects: Citrus fruit industry -- South Africa , Food industry and trade -- Safety regulations , Agricultural industries -- Safety regulations , Food -- Safety measures -- International cooperation , Export marketing -- Law and legislation -- South Africa , Competition, International
- Language: English
- Type: Thesis , Doctoral , PhD (Agricultural Economics)
- Identifier: vital:11162 , http://hdl.handle.net/10353/477 , Citrus fruit industry -- South Africa , Food industry and trade -- Safety regulations , Agricultural industries -- Safety regulations , Food -- Safety measures -- International cooperation , Export marketing -- Law and legislation -- South Africa , Competition, International
- Description: In recent years, concern about food safety linked to health issues has seen a rise in private food safety standards in addition to the regulations set by the Food and Agriculture Organisation (FAO) in collaboration with the World Health Organisation (WHO). These have presented challenges to producers and exporters of agricultural food products especially the producers of fresh fruits and vegetables. In spite of the food safety-linked challenges from the demand side, the vast range of business-environment forces pose equally formidable challenges that negatively impact on the exporting industries’ ability to maintain or improve their market shares and their ability to compete in world markets. The objective of this study was therefore to establish the competitiveness of the South African citrus industry in the international markets within this prevailing scenario. Due to the diversity of the definitions of competitiveness as a concept, this study formulated the following working definition: “the ability to create, deliver and maintain value and constant market share through strategic management of the industrial environment or competitiveness drivers”. This was based on the understanding that the international market shares of an industry are a function of forces in the business environment which range from intra-industry, external and national as well as the international elements. The unit of analysis were the citrus producers engaged in export of their products and the study made use of 151 responses by producers. The study adopted a five-step approach to the analysis of the performance of the South African citrus industry in the global markets, starting with the analysis of the Constant Market Share (CMS) of the South African citrus industry in various world markets, establishing the impact of the business environmental factors upon competitiveness, establishing the costs of compliance with private food safety standards, determining the non-price benefits of compliance with the standards, as well as highlighting the strategies for enhancing long-term competitiveness of the industry in the international markets. South Africa is one of the top three countries dominating the citrus fruit export market. Since its entry into the citrus fruit exports market in the 1900s, the industry has sustained its activity in the international market. The Constant Market Share Analysis shows that, amidst the challenges on the international market side, and the changes in the business environment, over much of which the industry has limited control and influence, the industry has maintained its competitive advantage in several markets. The CMS shows that South Africa’s lemons are competitive in America. Despite a negative trend, the South African grapefruit has been competitive in France, Greece, Italy, the Netherlands and Spain. Oranges have been competitive in the Greece, Italy, Portugal, UK, Asian and Northern Europe markets. Competitiveness in these markets has been due to the inherent competitiveness of the industry. Competitiveness in such markets as the Middle East has been attributed to the relatively rapid growth of these markets. The South African citrus industry has similarly undergone many major processes of transformation. The business environmental factors influencing its performance have ranged reform to the challenges beyond the country’s borders. These factors directly and indirectly affect the performance of the industry in the export market. They have influenced the flow of fruits into different international destinations. Of major concern are the food safety and private standards. Challenges in traditional markets as well as opportunities presented by demand from newly emerging citrus consuming nations have seen a diversification in the marketing of the South African citrus. The intensity of competition in the global market is reflected by the fluctuations in the market shares in different markets as well as the increase and fluctuations of fruit rejection rates in some lucrative markets such as America. A combination of challenging national environmental forces and stringent demand conditions negatively impact on revenues especially from markets characterised by price competitiveness. This study identified cost of production, foreign market support systems, adaptability, worker skills, challenges of management in an international environment and government policies such as labour and trade policies as some of the most influential obstacles to competitiveness. Some of the most competiveness-enhancing factors were market availability, market size, market information, market growth and the availability of research institutions. However, compliance with private standards still poses a challenge to the exporters. The different performance levels of the industry in various markets prove the dissimilarity of the demand conditions in the global market. These are supported by the negative influence associated with the foreign market support regimes as well as the challenges associated with compliance with private food safety standards. While market availability, market growth, market information and size were identified as enhancing competitiveness, the fluctuations and inconsistencies in the competitiveness of the industry in different foreign markets require more than finding markets. Resource allocation by both the government and the industry may need to take into account the off-setting of the national challenges and support of farmers faced with distorted and unfair international playing fields. Otherwise, market availability is not a challenge for the industry save meeting the specifications therewith as well as price competitiveness which is unattainable for the South African citrus producers faced with high production costs. For the purposes of further study, it is recommended that account should be taken of all the products marketed by the industry (including processed products such as fruit juices) in order to have a whole picture of the competitiveness of the industry in the international market. This study also proffers a new theoretical framework for the analysis of the business environment for the citrus industry and other agro-businesses. This framework takes into account the indispensability of the food safety standards and measures as well as the diversity of the global consumer and the non-negotiability of food trade for the sustenance of the growing population.
- Full Text:
- Date Issued: 2012
- Authors: Ndou, Portia
- Date: 2012
- Subjects: Citrus fruit industry -- South Africa , Food industry and trade -- Safety regulations , Agricultural industries -- Safety regulations , Food -- Safety measures -- International cooperation , Export marketing -- Law and legislation -- South Africa , Competition, International
- Language: English
- Type: Thesis , Doctoral , PhD (Agricultural Economics)
- Identifier: vital:11162 , http://hdl.handle.net/10353/477 , Citrus fruit industry -- South Africa , Food industry and trade -- Safety regulations , Agricultural industries -- Safety regulations , Food -- Safety measures -- International cooperation , Export marketing -- Law and legislation -- South Africa , Competition, International
- Description: In recent years, concern about food safety linked to health issues has seen a rise in private food safety standards in addition to the regulations set by the Food and Agriculture Organisation (FAO) in collaboration with the World Health Organisation (WHO). These have presented challenges to producers and exporters of agricultural food products especially the producers of fresh fruits and vegetables. In spite of the food safety-linked challenges from the demand side, the vast range of business-environment forces pose equally formidable challenges that negatively impact on the exporting industries’ ability to maintain or improve their market shares and their ability to compete in world markets. The objective of this study was therefore to establish the competitiveness of the South African citrus industry in the international markets within this prevailing scenario. Due to the diversity of the definitions of competitiveness as a concept, this study formulated the following working definition: “the ability to create, deliver and maintain value and constant market share through strategic management of the industrial environment or competitiveness drivers”. This was based on the understanding that the international market shares of an industry are a function of forces in the business environment which range from intra-industry, external and national as well as the international elements. The unit of analysis were the citrus producers engaged in export of their products and the study made use of 151 responses by producers. The study adopted a five-step approach to the analysis of the performance of the South African citrus industry in the global markets, starting with the analysis of the Constant Market Share (CMS) of the South African citrus industry in various world markets, establishing the impact of the business environmental factors upon competitiveness, establishing the costs of compliance with private food safety standards, determining the non-price benefits of compliance with the standards, as well as highlighting the strategies for enhancing long-term competitiveness of the industry in the international markets. South Africa is one of the top three countries dominating the citrus fruit export market. Since its entry into the citrus fruit exports market in the 1900s, the industry has sustained its activity in the international market. The Constant Market Share Analysis shows that, amidst the challenges on the international market side, and the changes in the business environment, over much of which the industry has limited control and influence, the industry has maintained its competitive advantage in several markets. The CMS shows that South Africa’s lemons are competitive in America. Despite a negative trend, the South African grapefruit has been competitive in France, Greece, Italy, the Netherlands and Spain. Oranges have been competitive in the Greece, Italy, Portugal, UK, Asian and Northern Europe markets. Competitiveness in these markets has been due to the inherent competitiveness of the industry. Competitiveness in such markets as the Middle East has been attributed to the relatively rapid growth of these markets. The South African citrus industry has similarly undergone many major processes of transformation. The business environmental factors influencing its performance have ranged reform to the challenges beyond the country’s borders. These factors directly and indirectly affect the performance of the industry in the export market. They have influenced the flow of fruits into different international destinations. Of major concern are the food safety and private standards. Challenges in traditional markets as well as opportunities presented by demand from newly emerging citrus consuming nations have seen a diversification in the marketing of the South African citrus. The intensity of competition in the global market is reflected by the fluctuations in the market shares in different markets as well as the increase and fluctuations of fruit rejection rates in some lucrative markets such as America. A combination of challenging national environmental forces and stringent demand conditions negatively impact on revenues especially from markets characterised by price competitiveness. This study identified cost of production, foreign market support systems, adaptability, worker skills, challenges of management in an international environment and government policies such as labour and trade policies as some of the most influential obstacles to competitiveness. Some of the most competiveness-enhancing factors were market availability, market size, market information, market growth and the availability of research institutions. However, compliance with private standards still poses a challenge to the exporters. The different performance levels of the industry in various markets prove the dissimilarity of the demand conditions in the global market. These are supported by the negative influence associated with the foreign market support regimes as well as the challenges associated with compliance with private food safety standards. While market availability, market growth, market information and size were identified as enhancing competitiveness, the fluctuations and inconsistencies in the competitiveness of the industry in different foreign markets require more than finding markets. Resource allocation by both the government and the industry may need to take into account the off-setting of the national challenges and support of farmers faced with distorted and unfair international playing fields. Otherwise, market availability is not a challenge for the industry save meeting the specifications therewith as well as price competitiveness which is unattainable for the South African citrus producers faced with high production costs. For the purposes of further study, it is recommended that account should be taken of all the products marketed by the industry (including processed products such as fruit juices) in order to have a whole picture of the competitiveness of the industry in the international market. This study also proffers a new theoretical framework for the analysis of the business environment for the citrus industry and other agro-businesses. This framework takes into account the indispensability of the food safety standards and measures as well as the diversity of the global consumer and the non-negotiability of food trade for the sustenance of the growing population.
- Full Text:
- Date Issued: 2012
The conflict between economic and conservation imperatives in the proposed exploration of shale gas in the South Western Karoo basin
- Authors: Mkhacane, Nkateko
- Date: 2012
- Subjects: Shale gas -- Economic aspects -- South Africa -- Karoo , Shale gas -- Conservation -- South Africa -- Karoo
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9061 , http://hdl.handle.net/10948/d1008180 , Shale gas -- Economic aspects -- South Africa -- Karoo , Shale gas -- Conservation -- South Africa -- Karoo
- Description: In this research the conflict between economic and conservation imperatives in the proposed exploration of shale gas in the South Western Karoo Basin was investigated. The primary aim of this study was to come to a theoretical understanding of the situation through a critical analysis of existing documents which allowed me to outline in detail the two opposing perspectives that either promote or resist a shale gas exploration project. The second objective of this research was to present empirical data from both a questionnaire completed by 20 respondents and two interviews, that helps amplify and verify arguments for or against a shale gas exploration project. The theoretical and empirical components of the research offer the basis for a balanced assessment of the viability of shell gas exploration in the Karoo. Using three fundamental assessment criteria (social, economic and environmental) for what constitutes a sustainable development project the gathered data was analysed in order to help ascertain whether or not the shale gas exploration project is a worthwhile development project. The question answered was whether a shale gas exploration project meets its social, economic and environmental mandates. From this, the final objective of this research was to make recommendations concerning what a responsible policy would be concerning land use in the Karoo.
- Full Text:
- Date Issued: 2012
- Authors: Mkhacane, Nkateko
- Date: 2012
- Subjects: Shale gas -- Economic aspects -- South Africa -- Karoo , Shale gas -- Conservation -- South Africa -- Karoo
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9061 , http://hdl.handle.net/10948/d1008180 , Shale gas -- Economic aspects -- South Africa -- Karoo , Shale gas -- Conservation -- South Africa -- Karoo
- Description: In this research the conflict between economic and conservation imperatives in the proposed exploration of shale gas in the South Western Karoo Basin was investigated. The primary aim of this study was to come to a theoretical understanding of the situation through a critical analysis of existing documents which allowed me to outline in detail the two opposing perspectives that either promote or resist a shale gas exploration project. The second objective of this research was to present empirical data from both a questionnaire completed by 20 respondents and two interviews, that helps amplify and verify arguments for or against a shale gas exploration project. The theoretical and empirical components of the research offer the basis for a balanced assessment of the viability of shell gas exploration in the Karoo. Using three fundamental assessment criteria (social, economic and environmental) for what constitutes a sustainable development project the gathered data was analysed in order to help ascertain whether or not the shale gas exploration project is a worthwhile development project. The question answered was whether a shale gas exploration project meets its social, economic and environmental mandates. From this, the final objective of this research was to make recommendations concerning what a responsible policy would be concerning land use in the Karoo.
- Full Text:
- Date Issued: 2012
The contribution of hip hop to the construction of personal indentities of South African female late adolescents
- Authors: Gitonga, Priscilla Nyawira
- Date: 2012
- Subjects: Hip-hop -- South Africa -- Influence , Women -- Identity , Teenage girls , Group identity
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/4288 , vital:20581
- Description: Identity construction is an integral task during late adolescence. In this study, I argue that hip hop music contributes to the process of identity construction among female late adolescents. The contexts that the female late adolescent is exposed to affect her process of identity construction. These contexts include family, friends, peers, religion, and popular culture, among other things. Hip hop music forms part of present-day popular culture. Adolescents have access to this genre of music via the mass media and social networks. The aim of this study is to explore the nature of hip hop‘s contribution to the identity construction of female late adolescents in South Africa. To this end, I engaged seven female late adolescents in several research activities, which enabled them to make sense of their perceived identities in the context of hip hop music. I then interpreted the participants‘ stories, in order to understand the process by which hip hop had contributed to their sense of personal identity. The participants in this study were first-year students in the Faculty of Education, Nelson Mandela Metropolitan University, who were all in the developmental phase of late adolescence. Narrative inquiry and participatory research (PR) approaches were the preferred strategies of data generation. The data-generation techniques included the use of drawings and lyric inquiry. These techniques served to stimulate the generation of narrative data. They also provided frameworks within which the participants could engage with their sense of identity in the context of hip hop music. The research revealed that hip hop music does indeed contribute to the process of personal identity construction of the female late adolescents who participated in the study. It does so by compelling the adolescent to think about herself in relation to her continual self, which draws from her past, present, and future, her interactional self, both at the personal and social levels, and her situational self. The appeal of hip hop to her cognitive capabilities is enhanced through the strong link that hip hop has with her emotions. The significance of this study can be summarised in three points. Firstly, this study provides empirical evidence of hip hop as a meaningful resource for the female adolescent as she constructs her identity. As such, the findings of this study negate the public notion of hip hop as being a bad influence on young people, and provides proof of its significant role in the lives of South African female adolescents. Secondly, this study is important for education in South Africa. The significance of hip hop music in education settings lies in its fundamental communicative capabilities, which can be effectively utilised in the classroom situation. Thirdly, this study strengthens educational research in South Africa, especially research aimed at the liberation and emancipation of female adolescents in South Africa. In this regard, this study provides alternative methodologies of inquiry to conventional research strategies, such as questionnaires and surveys.
- Full Text:
- Date Issued: 2012
- Authors: Gitonga, Priscilla Nyawira
- Date: 2012
- Subjects: Hip-hop -- South Africa -- Influence , Women -- Identity , Teenage girls , Group identity
- Language: English
- Type: Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10948/4288 , vital:20581
- Description: Identity construction is an integral task during late adolescence. In this study, I argue that hip hop music contributes to the process of identity construction among female late adolescents. The contexts that the female late adolescent is exposed to affect her process of identity construction. These contexts include family, friends, peers, religion, and popular culture, among other things. Hip hop music forms part of present-day popular culture. Adolescents have access to this genre of music via the mass media and social networks. The aim of this study is to explore the nature of hip hop‘s contribution to the identity construction of female late adolescents in South Africa. To this end, I engaged seven female late adolescents in several research activities, which enabled them to make sense of their perceived identities in the context of hip hop music. I then interpreted the participants‘ stories, in order to understand the process by which hip hop had contributed to their sense of personal identity. The participants in this study were first-year students in the Faculty of Education, Nelson Mandela Metropolitan University, who were all in the developmental phase of late adolescence. Narrative inquiry and participatory research (PR) approaches were the preferred strategies of data generation. The data-generation techniques included the use of drawings and lyric inquiry. These techniques served to stimulate the generation of narrative data. They also provided frameworks within which the participants could engage with their sense of identity in the context of hip hop music. The research revealed that hip hop music does indeed contribute to the process of personal identity construction of the female late adolescents who participated in the study. It does so by compelling the adolescent to think about herself in relation to her continual self, which draws from her past, present, and future, her interactional self, both at the personal and social levels, and her situational self. The appeal of hip hop to her cognitive capabilities is enhanced through the strong link that hip hop has with her emotions. The significance of this study can be summarised in three points. Firstly, this study provides empirical evidence of hip hop as a meaningful resource for the female adolescent as she constructs her identity. As such, the findings of this study negate the public notion of hip hop as being a bad influence on young people, and provides proof of its significant role in the lives of South African female adolescents. Secondly, this study is important for education in South Africa. The significance of hip hop music in education settings lies in its fundamental communicative capabilities, which can be effectively utilised in the classroom situation. Thirdly, this study strengthens educational research in South Africa, especially research aimed at the liberation and emancipation of female adolescents in South Africa. In this regard, this study provides alternative methodologies of inquiry to conventional research strategies, such as questionnaires and surveys.
- Full Text:
- Date Issued: 2012
The contribution of the trade in medicinal plants to urban livelihoods: a case study of the informal markets in Nelson Mandela Bay Municipality, Eastern Cape
- Ah Goo, Delia Felecia Stephanie
- Authors: Ah Goo, Delia Felecia Stephanie
- Date: 2012
- Subjects: Medicinal plants -- South Africa -- Port Elizabeth , Informal sector (Economics) -- South Africa -- Eastern Cape , Traditional medicine -- South Africa -- Port Elizabeth -- Markets
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10654 , http://hdl.handle.net/10948/d1011601 , Medicinal plants -- South Africa -- Port Elizabeth , Informal sector (Economics) -- South Africa -- Eastern Cape , Traditional medicine -- South Africa -- Port Elizabeth -- Markets
- Description: The commercialisation of natural resources such as medicinal plants is a strategy that is increasingly being employed by poor people in developing countries such as South Africa, as a means of generating an income. Increasing economic hardship and a lack of employment opportunities in the formal sector of the economy has led to many urban dwellers seeking alternative means of meeting their everyday livelihood needs. Although the contribution of natural resources to subsistence economies is widely recognised, there are few studies that have examined the significance of the trade in medicinal plants to the livelihoods of poor and marginalised people. Thirty informal street traders were interviewed to investigate the role of the medicinal plant trade in sustaining the livelihoods of the traders who operate in the informal sector of the Nelson Mandela Bay Municipality, South Africa. The findings of the research indicate that the sale and collection of medicinal plants is an activity which is exploited by people with limited resources, few skills, little or no education and often without any other source of household income. Middle-aged women from impoverished, single income households dominated the trade. Although income from the trade is modest, it contributed substantially to the total household cash income of the traders. Other benefits of the trade included independence and having a sense of purpose in life, as the traders felt that they were not only helping their families but also the wider community. However, without the income from the trade, many of the traders and their families would be destitute and thus the medicinal plant trade is vital to the wellbeing of these people.
- Full Text:
- Date Issued: 2012
- Authors: Ah Goo, Delia Felecia Stephanie
- Date: 2012
- Subjects: Medicinal plants -- South Africa -- Port Elizabeth , Informal sector (Economics) -- South Africa -- Eastern Cape , Traditional medicine -- South Africa -- Port Elizabeth -- Markets
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10654 , http://hdl.handle.net/10948/d1011601 , Medicinal plants -- South Africa -- Port Elizabeth , Informal sector (Economics) -- South Africa -- Eastern Cape , Traditional medicine -- South Africa -- Port Elizabeth -- Markets
- Description: The commercialisation of natural resources such as medicinal plants is a strategy that is increasingly being employed by poor people in developing countries such as South Africa, as a means of generating an income. Increasing economic hardship and a lack of employment opportunities in the formal sector of the economy has led to many urban dwellers seeking alternative means of meeting their everyday livelihood needs. Although the contribution of natural resources to subsistence economies is widely recognised, there are few studies that have examined the significance of the trade in medicinal plants to the livelihoods of poor and marginalised people. Thirty informal street traders were interviewed to investigate the role of the medicinal plant trade in sustaining the livelihoods of the traders who operate in the informal sector of the Nelson Mandela Bay Municipality, South Africa. The findings of the research indicate that the sale and collection of medicinal plants is an activity which is exploited by people with limited resources, few skills, little or no education and often without any other source of household income. Middle-aged women from impoverished, single income households dominated the trade. Although income from the trade is modest, it contributed substantially to the total household cash income of the traders. Other benefits of the trade included independence and having a sense of purpose in life, as the traders felt that they were not only helping their families but also the wider community. However, without the income from the trade, many of the traders and their families would be destitute and thus the medicinal plant trade is vital to the wellbeing of these people.
- Full Text:
- Date Issued: 2012
The coping orientation and self-esteem of black learners enrolled in under-resourced schools in the Nelson Mandela Metropole
- Authors: Ogle, Zimbini
- Date: 2012
- Subjects: Educational psychology -- South Africa -- Port Elizabeth , Educational psychology -- Study and teaching -- South Africa -- Port Elizabeth , Self-esteem -- South Africa -- Port Elizabeth -- Problems, exercises, etc. , Right to education -- South Africa -- Port Elizabeth , Public schools -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9941 , http://hdl.handle.net/10948/d1012591 , Educational psychology -- South Africa -- Port Elizabeth , Educational psychology -- Study and teaching -- South Africa -- Port Elizabeth , Self-esteem -- South Africa -- Port Elizabeth -- Problems, exercises, etc. , Right to education -- South Africa -- Port Elizabeth , Public schools -- South Africa -- Port Elizabeth
- Description: It is common knowledge that the delivery of a high quality, well-resourced educational service to learners enrolled in state schools in the Eastern Cape has ground to a halt and this lack of service delivery has now become a pervasive problem. South African education has to a large extent failed to meet the needs of Black learners. Schools, like other contexts of childhood and adolescence are intimate places where youths construct identities, build a sense of self, read how society views them, develop the capacity to sustain relations and forge the skills to initiate change. These are the contexts where youth grow or shrink. Buildings in disrepair are not, therefore, merely a distraction; they are identity producing and selfdefining. There has been much debate on the topic of self-esteem and its relationship to school performance and academic achievement. Previous studies have highlighted that selfesteem and resilience do play a role in academic achievement. Despite the many challenges facing learners in under-resourced schools, many learners have overcome such challenges and achieved academic success. This study aimed to explore and describe the coping orientation and self-esteem of Black learners enrolled in under-resourced state schools in the Nelson Mandela Metropole. An exploratory, descriptive survey design was employed and eighty-five research participants completed the Orientation to Life Questionnaire 29 Item (OLQ 29 Item), Battle‟s Culture Free Self-Esteem Inventory Form AD (CFSEI Form AD) and a biographical questionnaire. Key findings revealed fairly high mean scores on the OLQ 29 Item and low total self-esteem scores. The General, Social and Personal self-esteem of the learners were found to be average. The results also revealed that learners with a high sense of coherence are likely to have high self-esteem; hence high sense of coherence is better explained by high self-esteem and low sense of coherence is better explained by low selfesteem.
- Full Text:
- Date Issued: 2012
- Authors: Ogle, Zimbini
- Date: 2012
- Subjects: Educational psychology -- South Africa -- Port Elizabeth , Educational psychology -- Study and teaching -- South Africa -- Port Elizabeth , Self-esteem -- South Africa -- Port Elizabeth -- Problems, exercises, etc. , Right to education -- South Africa -- Port Elizabeth , Public schools -- South Africa -- Port Elizabeth
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:9941 , http://hdl.handle.net/10948/d1012591 , Educational psychology -- South Africa -- Port Elizabeth , Educational psychology -- Study and teaching -- South Africa -- Port Elizabeth , Self-esteem -- South Africa -- Port Elizabeth -- Problems, exercises, etc. , Right to education -- South Africa -- Port Elizabeth , Public schools -- South Africa -- Port Elizabeth
- Description: It is common knowledge that the delivery of a high quality, well-resourced educational service to learners enrolled in state schools in the Eastern Cape has ground to a halt and this lack of service delivery has now become a pervasive problem. South African education has to a large extent failed to meet the needs of Black learners. Schools, like other contexts of childhood and adolescence are intimate places where youths construct identities, build a sense of self, read how society views them, develop the capacity to sustain relations and forge the skills to initiate change. These are the contexts where youth grow or shrink. Buildings in disrepair are not, therefore, merely a distraction; they are identity producing and selfdefining. There has been much debate on the topic of self-esteem and its relationship to school performance and academic achievement. Previous studies have highlighted that selfesteem and resilience do play a role in academic achievement. Despite the many challenges facing learners in under-resourced schools, many learners have overcome such challenges and achieved academic success. This study aimed to explore and describe the coping orientation and self-esteem of Black learners enrolled in under-resourced state schools in the Nelson Mandela Metropole. An exploratory, descriptive survey design was employed and eighty-five research participants completed the Orientation to Life Questionnaire 29 Item (OLQ 29 Item), Battle‟s Culture Free Self-Esteem Inventory Form AD (CFSEI Form AD) and a biographical questionnaire. Key findings revealed fairly high mean scores on the OLQ 29 Item and low total self-esteem scores. The General, Social and Personal self-esteem of the learners were found to be average. The results also revealed that learners with a high sense of coherence are likely to have high self-esteem; hence high sense of coherence is better explained by high self-esteem and low sense of coherence is better explained by low selfesteem.
- Full Text:
- Date Issued: 2012
The credit risk management skills shortage in Nelson Mandela Bay Metropole
- Authors: Teka, Babalwa
- Date: 2012
- Subjects: Banks and banking -- Risk management -- South Africa -- Nelson Mandela Bay Municipality , Credit -- Management , Risk management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8834 , http://hdl.handle.net/10948/d1019893
- Description: Tito Mboweni (2011) said one of South Africa’s biggest tests is the overwhelming the skills shortage. He was echoing the views of Higher Education Minister Blade Nzimande who himself said “South Africa could not afford to have an economy "constrained by a severe lack of skills". There are numerous initiatives that having been undertaken by government in an attempt to solve the skills shortage problem. However, these initiatives are not aimed at the tertiary education system. The tertiary education system is the focus of this study as the author investigates how the NMMU Business School can play a significant role in addressing the skills shortage in the credit risk management sector. Following a literature review, surveys were completed by the NMMU Business School MBA students (ninety of them completed it) and personal interviews were conducted with three Provincial HR managers from South Africa’s “four big banks” in Nelson Mandela Bay (Nedbank, Standard Bank and ABSA). The study found that the skills shortage is indeed a problem. The study found that reasons including the legacy left by apartheid and students pursuing the wrong degrees were highlighted as some of the reason for this skills shortage. An opportunity for the NMMU Business School was identified to support the banking industry in addressing credit risk management skills shortage. The benefits include financial reward and more importantly an opportunity to differentiate the Business School and the courses offered at the school from the rest. Some of the recommendations included sourcing of the best practices from institutions like the Millpark Business School on effective partnering with the banking industry as well as a proactive approach to be adopted by the banking industry in terms of lobbying support from other potential role players for example but not limited to, student bodies, BankSeta and the smaller banks in the industry.
- Full Text:
- Date Issued: 2012
- Authors: Teka, Babalwa
- Date: 2012
- Subjects: Banks and banking -- Risk management -- South Africa -- Nelson Mandela Bay Municipality , Credit -- Management , Risk management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8834 , http://hdl.handle.net/10948/d1019893
- Description: Tito Mboweni (2011) said one of South Africa’s biggest tests is the overwhelming the skills shortage. He was echoing the views of Higher Education Minister Blade Nzimande who himself said “South Africa could not afford to have an economy "constrained by a severe lack of skills". There are numerous initiatives that having been undertaken by government in an attempt to solve the skills shortage problem. However, these initiatives are not aimed at the tertiary education system. The tertiary education system is the focus of this study as the author investigates how the NMMU Business School can play a significant role in addressing the skills shortage in the credit risk management sector. Following a literature review, surveys were completed by the NMMU Business School MBA students (ninety of them completed it) and personal interviews were conducted with three Provincial HR managers from South Africa’s “four big banks” in Nelson Mandela Bay (Nedbank, Standard Bank and ABSA). The study found that the skills shortage is indeed a problem. The study found that reasons including the legacy left by apartheid and students pursuing the wrong degrees were highlighted as some of the reason for this skills shortage. An opportunity for the NMMU Business School was identified to support the banking industry in addressing credit risk management skills shortage. The benefits include financial reward and more importantly an opportunity to differentiate the Business School and the courses offered at the school from the rest. Some of the recommendations included sourcing of the best practices from institutions like the Millpark Business School on effective partnering with the banking industry as well as a proactive approach to be adopted by the banking industry in terms of lobbying support from other potential role players for example but not limited to, student bodies, BankSeta and the smaller banks in the industry.
- Full Text:
- Date Issued: 2012
The design, synthesis and antiplasmodial activity of a series of halogenated fosmidomycin analogues and hybrid drugs
- Authors: Afolayan, Anthonia Folake
- Date: 2012
- Subjects: Uncatalogued
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/64370 , vital:28538
- Description: Malaria continues to be a devastating disease and a major cause of death in sub-Saharan Africa. With resistance against most of the available antimalarial drugs, there is a need for ongoing research and development of antimalarial agents. Fosmidomycin and its acetyl analogue FR900098 have been identified as potent inhibitors of Plasmodium falciparum, the causative agent of the most deadly form of malaria. Clinical trials of these agents have revealed poor absorption due to their high hydrophilicity. In the present studies the effect of halogenation of the acyl chain as well as the biological effect of extending the acyl sidechain was explored. This provided the basis on which fosmidomycin hybrids were designed to investigate the feasibility of hybrid extending into NADPH binding pocket. Synthesis of a series of halogenated FR900098 analogues was carried out in three stages. This included i) The introduction of the phosphonate group by reaction with 1,3dibromopropane in an Arbuzov reaction, ii) The introduction of a hydroxamate group by reaction of the propyl phosphonate by means of a nucleophilic substitution reaction with BocNHOBn and iii) The introduction of a halogenated acyl side chain on a protected fosmidomycin backbone. The synthesis of fosmidomycin-hybrids for which chloroquinefosmidomycin hybrids were used as the prototype, involved convergence of the two separately constructed moieties i.e. fosmidomycin and the quinoline moieties in a covalent linkage. The quinoline moiety was easily synthesized from the reaction of 4,7dichloroquinoline with 1,2-diamino ethane. The aminoquinoline so formed resulted in chloroquine-fosmidomycin hybrids 3.8 and 3.9 when reacted with halogenated FR900098 analogues. Antiplasmodial assays were conducted on the chloroquine-fosmidomycin hybrids and the halogenated fosmidomycin derivatives against the chloroquine resistant Gambian FCR-3 strain of P. falciparum. The most potent iodoacetyl fosmidomycin analogues 2.21 gave an IC50 value of 5.54 µM which is eight times more potent than the known antiplasmodial FR900098 which gave an IC50 value of 41.67 µM. All the halogenated FR900098 analogues showed better antiplasmodial activity than their non-halogenated derivatives. This indicated that the presence of halogens in the FR900098 analogues contributes to their biological Chapter 1 Literature review activity. The acetyl and propyl linked hybrids 3.8 and 3.9 showed potent antiplasmodial activity with IC50 values of 0.18 and 0.82 µM respectively. These were by far the most potent hybrids synthesized and provided leads for a new class of promising antimalarial agents. Preliminary E. coli DXR enzyme inhibition assays were carried out on the halogenated fosmidomycin analogues. The results showed good inhibition of the enzyme by the phosphonic acids of the chloroacetyl and chloropropyl analogues 2.1 and 2.2 respectively. Molecular modelling of the compounds on E. coli (PDB code: 2EGH) and P. falciparum (PDB code: 3AUA) DXR showed strong binding of the halogenated fosmidomycin analogues while the hybrids in the absence of docked NADPH showed minimum binding to the enzymes.
- Full Text:
- Date Issued: 2012
- Authors: Afolayan, Anthonia Folake
- Date: 2012
- Subjects: Uncatalogued
- Language: English
- Type: text , Thesis , Doctoral , PhD
- Identifier: http://hdl.handle.net/10962/64370 , vital:28538
- Description: Malaria continues to be a devastating disease and a major cause of death in sub-Saharan Africa. With resistance against most of the available antimalarial drugs, there is a need for ongoing research and development of antimalarial agents. Fosmidomycin and its acetyl analogue FR900098 have been identified as potent inhibitors of Plasmodium falciparum, the causative agent of the most deadly form of malaria. Clinical trials of these agents have revealed poor absorption due to their high hydrophilicity. In the present studies the effect of halogenation of the acyl chain as well as the biological effect of extending the acyl sidechain was explored. This provided the basis on which fosmidomycin hybrids were designed to investigate the feasibility of hybrid extending into NADPH binding pocket. Synthesis of a series of halogenated FR900098 analogues was carried out in three stages. This included i) The introduction of the phosphonate group by reaction with 1,3dibromopropane in an Arbuzov reaction, ii) The introduction of a hydroxamate group by reaction of the propyl phosphonate by means of a nucleophilic substitution reaction with BocNHOBn and iii) The introduction of a halogenated acyl side chain on a protected fosmidomycin backbone. The synthesis of fosmidomycin-hybrids for which chloroquinefosmidomycin hybrids were used as the prototype, involved convergence of the two separately constructed moieties i.e. fosmidomycin and the quinoline moieties in a covalent linkage. The quinoline moiety was easily synthesized from the reaction of 4,7dichloroquinoline with 1,2-diamino ethane. The aminoquinoline so formed resulted in chloroquine-fosmidomycin hybrids 3.8 and 3.9 when reacted with halogenated FR900098 analogues. Antiplasmodial assays were conducted on the chloroquine-fosmidomycin hybrids and the halogenated fosmidomycin derivatives against the chloroquine resistant Gambian FCR-3 strain of P. falciparum. The most potent iodoacetyl fosmidomycin analogues 2.21 gave an IC50 value of 5.54 µM which is eight times more potent than the known antiplasmodial FR900098 which gave an IC50 value of 41.67 µM. All the halogenated FR900098 analogues showed better antiplasmodial activity than their non-halogenated derivatives. This indicated that the presence of halogens in the FR900098 analogues contributes to their biological Chapter 1 Literature review activity. The acetyl and propyl linked hybrids 3.8 and 3.9 showed potent antiplasmodial activity with IC50 values of 0.18 and 0.82 µM respectively. These were by far the most potent hybrids synthesized and provided leads for a new class of promising antimalarial agents. Preliminary E. coli DXR enzyme inhibition assays were carried out on the halogenated fosmidomycin analogues. The results showed good inhibition of the enzyme by the phosphonic acids of the chloroacetyl and chloropropyl analogues 2.1 and 2.2 respectively. Molecular modelling of the compounds on E. coli (PDB code: 2EGH) and P. falciparum (PDB code: 3AUA) DXR showed strong binding of the halogenated fosmidomycin analogues while the hybrids in the absence of docked NADPH showed minimum binding to the enzymes.
- Full Text:
- Date Issued: 2012
The development and optimization of a cosmetic formulation that facilitates the process of detangling braids from African hair
- Authors: Mkentane, Kwezikazi
- Date: 2012
- Subjects: Cosmetics--Patents , Hairdressing of Blacks , Braids (Hairdressing)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10366 , http://hdl.handle.net/10948/1662 , Cosmetics--Patents , Hairdressing of Blacks , Braids (Hairdressing)
- Description: A large number of people throughout the world have naturally kinky hair that may be very difficult to manage. These people often subject their hair to vigorous and harsh treatment processes in order to straighten it and hence make it more manageable. Hair braiding is a popular and fashionable trend amongst many people, in particular people of African descent. Braided hairstyles serve to preserve hair and protect it, and to give it time to rejuvenate after a period of harsh treatment. During the braiding process synthetic hair is attached to natural hair by weaving a length of the natural hair into one end of each braid. Other materials like wool or cotton may be use used to achieve different hairstyles and textures. Several strands of natural hair are used to secure each braid. The braids are normally left intact for a number of weeks or even months. Although braiding is a helpful African hair grooming practice, the process of taking down or detangling the braids is labor intensive and entails each braid being cut just below where the natural hair ceases and the natural hair being untangled from the braid using a safety pin, a needle or a fine toothed comb. The labor and long hours required to detangle braided hairstyles often results in braid wearers frustratingly pulling on their braided hair. This behavior inevitably destroys the hair follicle and leaves the hair damaged. According to a study conducted by the University of Cape Town’s dermatology department, braiding may be the root cause of traction alopecia (TA) amongst braid wearers. Traction alopecia is a form of alopecia, or gradual hair loss that is caused primarily by excessive pulling forces applied to the hair. The purpose of this current study was to investigate the factors, other than braid tightness, that affect the way and ease with which braids are detangled from the human hair. The study hypothesized that frictional forces present in braided hair were amongst these factors. It was hypothesized that introducing a lubricating formulation in the braids would allow for easier braid detangling. In order to decrease the prevalence of traction alopecia from braided hair, two hair strengthening actives were included in the test formulation. The study investigated the effects of the test formulations on braid detangling, hair friction and on the tensile strength of human hair. The study found that the method used did not pick up any significant differences between the braid detangling forces of treated braids when compared to the braid vi detangling forces of untreated hair. The same method used to measure braid detangling forces was able to show that there are variations in the braid detangling forces of different sections along the braid length. The method to measure braid detangling was based on the principles of hair combability measurements. The study also found that although the method used to measure braid detangling forces was unsuccessful in picking up significant differences in braid detangling forces of treated hair and untreated hair, the method used to measure the frictional forces of human hair showed that the frictional forces of hair treated with test formulations were significantly different than that of untreated hair. The method used to measure frictional forces was based on the capstan approach. The Capstan method measures the forces required to slide a weighted hair fibre over a curved surface of reference material. The interaction between the weighted fibre and the reference material simulates the movement of hair out of a braid ensemble in the braid detangling process. The optimum mixture with the minimum coefficient of friction, predicted a coefficient of friction of 0.61 ± 0.04. The optimum formulation was found to be one that contained 30% Cyclopentasiloxane , 0% PEG-12 Dimethicone, 10% 18-MEA, 29% water, 10% hair strengthening actives, 12.86% emulsifier combination and 8% other oils. The study also showed that including hair strengthening actives, such as hydrolysed proteins had significant effects in the tensile strength properties of chemically treated African hair.
- Full Text:
- Date Issued: 2012
- Authors: Mkentane, Kwezikazi
- Date: 2012
- Subjects: Cosmetics--Patents , Hairdressing of Blacks , Braids (Hairdressing)
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10366 , http://hdl.handle.net/10948/1662 , Cosmetics--Patents , Hairdressing of Blacks , Braids (Hairdressing)
- Description: A large number of people throughout the world have naturally kinky hair that may be very difficult to manage. These people often subject their hair to vigorous and harsh treatment processes in order to straighten it and hence make it more manageable. Hair braiding is a popular and fashionable trend amongst many people, in particular people of African descent. Braided hairstyles serve to preserve hair and protect it, and to give it time to rejuvenate after a period of harsh treatment. During the braiding process synthetic hair is attached to natural hair by weaving a length of the natural hair into one end of each braid. Other materials like wool or cotton may be use used to achieve different hairstyles and textures. Several strands of natural hair are used to secure each braid. The braids are normally left intact for a number of weeks or even months. Although braiding is a helpful African hair grooming practice, the process of taking down or detangling the braids is labor intensive and entails each braid being cut just below where the natural hair ceases and the natural hair being untangled from the braid using a safety pin, a needle or a fine toothed comb. The labor and long hours required to detangle braided hairstyles often results in braid wearers frustratingly pulling on their braided hair. This behavior inevitably destroys the hair follicle and leaves the hair damaged. According to a study conducted by the University of Cape Town’s dermatology department, braiding may be the root cause of traction alopecia (TA) amongst braid wearers. Traction alopecia is a form of alopecia, or gradual hair loss that is caused primarily by excessive pulling forces applied to the hair. The purpose of this current study was to investigate the factors, other than braid tightness, that affect the way and ease with which braids are detangled from the human hair. The study hypothesized that frictional forces present in braided hair were amongst these factors. It was hypothesized that introducing a lubricating formulation in the braids would allow for easier braid detangling. In order to decrease the prevalence of traction alopecia from braided hair, two hair strengthening actives were included in the test formulation. The study investigated the effects of the test formulations on braid detangling, hair friction and on the tensile strength of human hair. The study found that the method used did not pick up any significant differences between the braid detangling forces of treated braids when compared to the braid vi detangling forces of untreated hair. The same method used to measure braid detangling forces was able to show that there are variations in the braid detangling forces of different sections along the braid length. The method to measure braid detangling was based on the principles of hair combability measurements. The study also found that although the method used to measure braid detangling forces was unsuccessful in picking up significant differences in braid detangling forces of treated hair and untreated hair, the method used to measure the frictional forces of human hair showed that the frictional forces of hair treated with test formulations were significantly different than that of untreated hair. The method used to measure frictional forces was based on the capstan approach. The Capstan method measures the forces required to slide a weighted hair fibre over a curved surface of reference material. The interaction between the weighted fibre and the reference material simulates the movement of hair out of a braid ensemble in the braid detangling process. The optimum mixture with the minimum coefficient of friction, predicted a coefficient of friction of 0.61 ± 0.04. The optimum formulation was found to be one that contained 30% Cyclopentasiloxane , 0% PEG-12 Dimethicone, 10% 18-MEA, 29% water, 10% hair strengthening actives, 12.86% emulsifier combination and 8% other oils. The study also showed that including hair strengthening actives, such as hydrolysed proteins had significant effects in the tensile strength properties of chemically treated African hair.
- Full Text:
- Date Issued: 2012
The development of a programmable engine management system for a formula student race vehicle
- Authors: Parmar, Hiten
- Date: 2012
- Subjects: Automobiles -- Motors -- Computer control systems , Automotive computers
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9601 , http://hdl.handle.net/10948/d1010957 , Automobiles -- Motors -- Computer control systems , Automotive computers
- Full Text:
- Date Issued: 2012
- Authors: Parmar, Hiten
- Date: 2012
- Subjects: Automobiles -- Motors -- Computer control systems , Automotive computers
- Language: English
- Type: Thesis , Masters , MTech
- Identifier: vital:9601 , http://hdl.handle.net/10948/d1010957 , Automobiles -- Motors -- Computer control systems , Automotive computers
- Full Text:
- Date Issued: 2012