'Every student matters’ : a sociological study of learners, teachers and academic achievement in a Heidelberg school
- Authors: Solomons, Zaira
- Date: 2016
- Subjects: Children with social disabilities - Education - South Africa , Educational sociology - South Africa , Teacher-student relationships - South Africa
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/226917 , uj:22954
- Description: M.A. , Abstract: Schools in post-apartheid South Africa have the huge challenge of educating, enskilling and preparing for the future, a new generation of scholars who will take their place in a democratic, transformed South Africa. Many disadvantaged learners drop out before high school, and those who continue to progress through the system have to struggle with poverty, poor nutrition, problematic family situations and parents who are unfamiliar with the demands of high schools in the present era. In contexts such as this, the strength of the ‘learner-teacher’ association becomes crucial for the success of high school learners and their ultimate academic achievement. In this study the researcher probes the views of teachers and learners in a school that caters for a neglected and disadvantaged group of learners. It sets out to establish the impact of teachers’ behaviours, attitudes and actions on learners’ academic success. The theoretical basis of social capital is drawn upon to highlight arguments put forth. Semi-structured qualitative interviews were relied upon to elicit information from participants. A total of fourteen learner participants and seven teachers from Kgoro Ya Thuto Secondary School were interviewed to ascertain whether or not at all teachers had contributed significantly to the educational outcomes of learners. The study reveals that teachers are perceived to be caring, committed and driven to improve learner achievements. Learners do not view all their teachers in the same light, but in general consider them to be instigators of change, who offer themselves as a valuable resource that influences their learners in a positive way. Teachers highlighted that, although they were comfortable about taking on various roles, under strained working conditions, their efforts could have better long-term effects if there was stronger support from parents and the Department of Basic Education. The study concludes with recommendations for intervention and future research.
- Full Text:
- Authors: Solomons, Zaira
- Date: 2016
- Subjects: Children with social disabilities - Education - South Africa , Educational sociology - South Africa , Teacher-student relationships - South Africa
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/226917 , uj:22954
- Description: M.A. , Abstract: Schools in post-apartheid South Africa have the huge challenge of educating, enskilling and preparing for the future, a new generation of scholars who will take their place in a democratic, transformed South Africa. Many disadvantaged learners drop out before high school, and those who continue to progress through the system have to struggle with poverty, poor nutrition, problematic family situations and parents who are unfamiliar with the demands of high schools in the present era. In contexts such as this, the strength of the ‘learner-teacher’ association becomes crucial for the success of high school learners and their ultimate academic achievement. In this study the researcher probes the views of teachers and learners in a school that caters for a neglected and disadvantaged group of learners. It sets out to establish the impact of teachers’ behaviours, attitudes and actions on learners’ academic success. The theoretical basis of social capital is drawn upon to highlight arguments put forth. Semi-structured qualitative interviews were relied upon to elicit information from participants. A total of fourteen learner participants and seven teachers from Kgoro Ya Thuto Secondary School were interviewed to ascertain whether or not at all teachers had contributed significantly to the educational outcomes of learners. The study reveals that teachers are perceived to be caring, committed and driven to improve learner achievements. Learners do not view all their teachers in the same light, but in general consider them to be instigators of change, who offer themselves as a valuable resource that influences their learners in a positive way. Teachers highlighted that, although they were comfortable about taking on various roles, under strained working conditions, their efforts could have better long-term effects if there was stronger support from parents and the Department of Basic Education. The study concludes with recommendations for intervention and future research.
- Full Text:
'n Kritiese beskouing van die huidige klassifikasie van die superfamilie Actinolaimoidea (Nematoda)
- Authors: Van Rooyen, Daniel
- Date: 1982
- Subjects: Nematodes , Dorylaimida - Classification , Actinolaimoidea (Nematoda)
- Language: Afrikaans
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/84387 , uj:19214
- Description: Abstract: The group of nematodes with walls of the stoma (pharynx) or vestibule cuticularized was first classified under the subfamily Actinolaiminae (family Dorylaimidae) by Thorne in 1939. Meyl raised it to family status in 1961 and in 1967 Thorne erected the superfamily Actino= laimoidea to accomodate this group of nenatodes under the Dorylaimida. In this dissertation the validity of the superfamily is questioned. The classification of this group by Thorne (1967), Ferris (1971) and Andrássy (1976) are compared and the present taxonomy of the group is criticized. The group of actinolaims is considered as a family under the superfamily Dorylaimoidea by the author and a rearran= gement of the genera is proposed. , M.A. (Zoology)
- Full Text:
- Authors: Van Rooyen, Daniel
- Date: 1982
- Subjects: Nematodes , Dorylaimida - Classification , Actinolaimoidea (Nematoda)
- Language: Afrikaans
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/84387 , uj:19214
- Description: Abstract: The group of nematodes with walls of the stoma (pharynx) or vestibule cuticularized was first classified under the subfamily Actinolaiminae (family Dorylaimidae) by Thorne in 1939. Meyl raised it to family status in 1961 and in 1967 Thorne erected the superfamily Actino= laimoidea to accomodate this group of nenatodes under the Dorylaimida. In this dissertation the validity of the superfamily is questioned. The classification of this group by Thorne (1967), Ferris (1971) and Andrássy (1976) are compared and the present taxonomy of the group is criticized. The group of actinolaims is considered as a family under the superfamily Dorylaimoidea by the author and a rearran= gement of the genera is proposed. , M.A. (Zoology)
- Full Text:
'n Ondersoek na omgewingsverandering en strategieaanpassing binne enkele ondernemings in die Vaaldriehoekgebied
- Authors: Grobler, Johan
- Date: 1995
- Subjects: Organizational change - South Africa , Strategic planning - South Africa
- Language: Afrikaans
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/84405 , uj:19217
- Description: Abstract: During 1989, the need for doing a study on environmental change and strategy adjustment within a few businesses in the Vaal Triangle area, was identified. This study revealed the fact that the economic environment exercised the greatest influence on businesses. The past few years have been characterized by radical political-, and consequently, economical changes in the country. As a result of this, it was decided to undertake a similar study. The latest study revealed information regarding the macro environment. The variables which will, in future, exercise the greatest influence on the manufacturing industry in the Vaal Triangle, were also identified. The first section of this paper gives an in-depth theoretical study of the influence of macro environmental factors on a business. This study was done on the basis of Pearce and Robinson's model of macro environmental factors. With the aid of this model, it was attempted to determine which opportunities, threats, strong points and weak points will influence the business environment the most. The next step was to entail a SWOT analysis which includes choice of stategy and strategy evaluation. The institutionalisation process, in which attention was paid to factors such as structure, leadership and culture, follows. It is concluded by the strategy being made operational by means of functional strategies. The objective of the last part has been to determine how businesses experience the institutionalisation process in practice. An environmental reconnoitering- and strategy adjustment questionnaire, which evaluated 42 dimensions, were used. The questionnaire was completed by the general managers of selected businesses. The results have been assimilated and processed in tabels and on graphs.... , M.Com. (Business Management)
- Full Text:
- Authors: Grobler, Johan
- Date: 1995
- Subjects: Organizational change - South Africa , Strategic planning - South Africa
- Language: Afrikaans
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/84405 , uj:19217
- Description: Abstract: During 1989, the need for doing a study on environmental change and strategy adjustment within a few businesses in the Vaal Triangle area, was identified. This study revealed the fact that the economic environment exercised the greatest influence on businesses. The past few years have been characterized by radical political-, and consequently, economical changes in the country. As a result of this, it was decided to undertake a similar study. The latest study revealed information regarding the macro environment. The variables which will, in future, exercise the greatest influence on the manufacturing industry in the Vaal Triangle, were also identified. The first section of this paper gives an in-depth theoretical study of the influence of macro environmental factors on a business. This study was done on the basis of Pearce and Robinson's model of macro environmental factors. With the aid of this model, it was attempted to determine which opportunities, threats, strong points and weak points will influence the business environment the most. The next step was to entail a SWOT analysis which includes choice of stategy and strategy evaluation. The institutionalisation process, in which attention was paid to factors such as structure, leadership and culture, follows. It is concluded by the strategy being made operational by means of functional strategies. The objective of the last part has been to determine how businesses experience the institutionalisation process in practice. An environmental reconnoitering- and strategy adjustment questionnaire, which evaluated 42 dimensions, were used. The questionnaire was completed by the general managers of selected businesses. The results have been assimilated and processed in tabels and on graphs.... , M.Com. (Business Management)
- Full Text:
(Pyrazolylethyl-amine)zinc(II) carboxylate complexes as catalysts for the copolymerization of CO2 and cyclohexene oxide
- Authors: Matiwane, Anelisa
- Date: 2016
- Subjects: Metal catalysts , Organic compounds - Synthesis , Copolymers , Organometallic compounds , Organometallic compounds - Synthesis
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/84692 , uj:19253
- Description: Abstract: This study describes the synthesis of zinc(II) carboxylate complexes with the pyrazolylethylamine ligands and the application of these complexes as catalysts for the copolymerization reaction of carbon dioxide (CO2) and cyclohexene oxide (CHO) to form polycarbonates. A series of pyrazolyl-based ligands, 2-(3,5-dimethyl-1H-pyrazol-1-yl)ethanamine (L1), 2-(3,5-di-tert-butyl-1H-pyrazol-1-yl)ethanamine) (L2), 2-(3,5-diphenyl-1H-pyrazol-1-yl)ethan-amine (L3), 2-(3-phenyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)ethanamine (L4) were synthesized according to the literature which involves N sp3 alkylation of the appropriate pyrazole with 2-bromoethylamine hydrobromide. These ligands were reacted with zinc(II) acetate and benzoates to form bidentate complexes, [(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethan-amine)Zn(OAc)2] (1), [(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO)2] (2), [(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO(NO2)2] (3), [(2-(3,5-di-tert-butyl-1H-pyrazol-1-yl)ethanamine)(Zn(OAc)2] (4), [(2-(3,5-di-tert-butyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO)2] (5), [(2-(3,5-di-tert-butyl-1H-pyrazol-1-yl)-ethanamine)-Zn(C6H5COO(NO2)2] (6), [(2-(3,5-diphenyl-1H-pyrazol-1-yl)ethanamine)Zn(OAc)2] (7), [(2-(3,5-diphenyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO)2] (8), [(2-(3,5-diphenyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO(NO2)2] (9), [(2-(5-phenyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)ethanamine)Zn(OAc)2] (10), [(2-(5-phenyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO)2] (11), [(2-(5-phenyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO(NO2)2] (12)... , M.Sc.
- Full Text:
- Authors: Matiwane, Anelisa
- Date: 2016
- Subjects: Metal catalysts , Organic compounds - Synthesis , Copolymers , Organometallic compounds , Organometallic compounds - Synthesis
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/84692 , uj:19253
- Description: Abstract: This study describes the synthesis of zinc(II) carboxylate complexes with the pyrazolylethylamine ligands and the application of these complexes as catalysts for the copolymerization reaction of carbon dioxide (CO2) and cyclohexene oxide (CHO) to form polycarbonates. A series of pyrazolyl-based ligands, 2-(3,5-dimethyl-1H-pyrazol-1-yl)ethanamine (L1), 2-(3,5-di-tert-butyl-1H-pyrazol-1-yl)ethanamine) (L2), 2-(3,5-diphenyl-1H-pyrazol-1-yl)ethan-amine (L3), 2-(3-phenyl-5-(trifluoromethyl)-1H-pyrazol-1-yl)ethanamine (L4) were synthesized according to the literature which involves N sp3 alkylation of the appropriate pyrazole with 2-bromoethylamine hydrobromide. These ligands were reacted with zinc(II) acetate and benzoates to form bidentate complexes, [(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethan-amine)Zn(OAc)2] (1), [(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO)2] (2), [(2-(3,5-dimethyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO(NO2)2] (3), [(2-(3,5-di-tert-butyl-1H-pyrazol-1-yl)ethanamine)(Zn(OAc)2] (4), [(2-(3,5-di-tert-butyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO)2] (5), [(2-(3,5-di-tert-butyl-1H-pyrazol-1-yl)-ethanamine)-Zn(C6H5COO(NO2)2] (6), [(2-(3,5-diphenyl-1H-pyrazol-1-yl)ethanamine)Zn(OAc)2] (7), [(2-(3,5-diphenyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO)2] (8), [(2-(3,5-diphenyl-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO(NO2)2] (9), [(2-(5-phenyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)ethanamine)Zn(OAc)2] (10), [(2-(5-phenyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO)2] (11), [(2-(5-phenyl-3-(trifluoromethyl)-1H-pyrazol-1-yl)ethanamine)Zn(C6H5COO(NO2)2] (12)... , M.Sc.
- Full Text:
14°55’N 23°31’W – The isle of catalysis : A viewing post, guard house, laboratory & pillory for a postcolonial condition
- Authors: Meade, Richard
- Date: 2016
- Subjects: Imaginary buildings - Cabo Verde , Architecture and literature , Storytelling in art
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/226322 , uj:22882
- Description: M.Tech. (Architectural Technology) , Abstract: Please refer to full text to view abstract
- Full Text:
- Authors: Meade, Richard
- Date: 2016
- Subjects: Imaginary buildings - Cabo Verde , Architecture and literature , Storytelling in art
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/226322 , uj:22882
- Description: M.Tech. (Architectural Technology) , Abstract: Please refer to full text to view abstract
- Full Text:
15 second city : corridors of hyper consumption
- Authors: Lubinsky, Tova
- Date: 2017
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/264225 , uj:27953
- Description: Abstract: Please refer to full text to view abstract. , M.Tech. (Architecture)
- Full Text:
- Authors: Lubinsky, Tova
- Date: 2017
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/264225 , uj:27953
- Description: Abstract: Please refer to full text to view abstract. , M.Tech. (Architecture)
- Full Text:
185W (n,y) cross-sections constrained with statistical nuclear properties of 186W nucleus
- Authors: Mbabane, Mvuyisi
- Date: 2019
- Subjects: Neutron cross-sections , Neutrons - Capture , Energy level densities , Nucleosynthesis
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/403514 , uj:33818
- Description: M.Sc. (Physics) , Abstract: At some locations along the s-process reaction path, there exists nuclei with _-decay rates that competes with the neutron capture rates. Leading to a new possibility in s-process path because the radioactive nucleus may capture a neutron instead of undergoing the expected _ decay. As a result the sprocess is split into two to account for neutron capture possibility. The nuclei at which this occur are are known as s-process branch-point nuclei, which are worth looking into because they can be used to estimate stellar temperature and neutron density at the s-process site. However studying has proven to be a challenge since their (n; ) cross section are usually not measurable by direct measurements. One of these branch-point nuclei is 185W, and is important due to the Re-Os cosmochronology whereby the 187Re _187Os pair may be used as a chronometer to estimate stellar nucleosynthesis duration in the universe before the formation our solar system. However, the existence of branch point nuclei at leads to inconclusive analysis. Hence the need for better constraints of their (n; ) cross-sections. In this work the nuclear level density and strength function of 186;187W were measured with th Oslo method using 186W(d; d0) and 186W(d; d0) reactions. These new experimental data were successfully used to constrain 185W(n; ) cross sections within the Hauser-Feshbach model.
- Full Text:
- Authors: Mbabane, Mvuyisi
- Date: 2019
- Subjects: Neutron cross-sections , Neutrons - Capture , Energy level densities , Nucleosynthesis
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/403514 , uj:33818
- Description: M.Sc. (Physics) , Abstract: At some locations along the s-process reaction path, there exists nuclei with _-decay rates that competes with the neutron capture rates. Leading to a new possibility in s-process path because the radioactive nucleus may capture a neutron instead of undergoing the expected _ decay. As a result the sprocess is split into two to account for neutron capture possibility. The nuclei at which this occur are are known as s-process branch-point nuclei, which are worth looking into because they can be used to estimate stellar temperature and neutron density at the s-process site. However studying has proven to be a challenge since their (n; ) cross section are usually not measurable by direct measurements. One of these branch-point nuclei is 185W, and is important due to the Re-Os cosmochronology whereby the 187Re _187Os pair may be used as a chronometer to estimate stellar nucleosynthesis duration in the universe before the formation our solar system. However, the existence of branch point nuclei at leads to inconclusive analysis. Hence the need for better constraints of their (n; ) cross-sections. In this work the nuclear level density and strength function of 186;187W were measured with th Oslo method using 186W(d; d0) and 186W(d; d0) reactions. These new experimental data were successfully used to constrain 185W(n; ) cross sections within the Hauser-Feshbach model.
- Full Text:
A banking perspective on the constitutional right to housing with emphasis on mortgage agreements
- Authors: Mangena, Dimakatso
- Date: 2017
- Subjects: Right to housing , Housing - Law and legislation , Mortgage loans - Law and legislation , Banking law
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/236354 , uj:24189
- Description: LL.M. (Banking Law) , Abstract: The purpose of this dissertation is to analyse the impact of section 26 of the Constitution on the sale in execution of mortgaged immovable property by the bank as a judgement creditor. When a debtor defaults on payments due in terms of the mortgage agreement, the bank usually approaches the court for default judgement and an order declaring the property executable. Over the past years obtaining a writ of execution declaring immovable property executable has been disputed as being an infringement of a debtor’s right of access to adequate housing. This dissertation starts off by discussing the importance of the housing clause in the Constitution and the commercial value of mortgage finance. Case law dealing with the constitutionality of the sale in execution of mortgaged immovable property will be discussed and from these case discussions it becomes apparent that mortgage foreclosure law has changed as the bank needs to adhere to certain procedural requirements when proceeding with the enforcement of a mortgage debt. Furthermore an order declaring a debtor’s residential immovable property executable, infringes on the debtor’s constitutional right of access to adequate housing, therefore judicial oversight is required before such an order can be granted. Judicial oversight is necessary to ensure that all the relevant circumstances are considered before a decision is made for a debtor’s home to be sold in execution. It ensures that there is a proportionate relationship between the purpose of the sale of a debtor’s home and the effect that such a sale has on the debtor’s rights. Judicial oversight also ensures that the sale in execution process is not abused and will be used as a last resort. The banks, as mortgagees now have a duty to ensure that all other less drastic means of debt recovery are used before approaching a court of law for an order declaring the debtor’s home executable...
- Full Text:
- Authors: Mangena, Dimakatso
- Date: 2017
- Subjects: Right to housing , Housing - Law and legislation , Mortgage loans - Law and legislation , Banking law
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/236354 , uj:24189
- Description: LL.M. (Banking Law) , Abstract: The purpose of this dissertation is to analyse the impact of section 26 of the Constitution on the sale in execution of mortgaged immovable property by the bank as a judgement creditor. When a debtor defaults on payments due in terms of the mortgage agreement, the bank usually approaches the court for default judgement and an order declaring the property executable. Over the past years obtaining a writ of execution declaring immovable property executable has been disputed as being an infringement of a debtor’s right of access to adequate housing. This dissertation starts off by discussing the importance of the housing clause in the Constitution and the commercial value of mortgage finance. Case law dealing with the constitutionality of the sale in execution of mortgaged immovable property will be discussed and from these case discussions it becomes apparent that mortgage foreclosure law has changed as the bank needs to adhere to certain procedural requirements when proceeding with the enforcement of a mortgage debt. Furthermore an order declaring a debtor’s residential immovable property executable, infringes on the debtor’s constitutional right of access to adequate housing, therefore judicial oversight is required before such an order can be granted. Judicial oversight is necessary to ensure that all the relevant circumstances are considered before a decision is made for a debtor’s home to be sold in execution. It ensures that there is a proportionate relationship between the purpose of the sale of a debtor’s home and the effect that such a sale has on the debtor’s rights. Judicial oversight also ensures that the sale in execution process is not abused and will be used as a last resort. The banks, as mortgagees now have a duty to ensure that all other less drastic means of debt recovery are used before approaching a court of law for an order declaring the debtor’s home executable...
- Full Text:
A better estimation of the forward looking equity risk premium : a study of the South African financial market.
- Authors: De Almeida, Paulo Pires
- Date: 2015
- Subjects: Securities - South Africa , Capital market - South Africa , Money market - South Africa
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/54538 , uj:16236
- Description: Abstract: The expected equity risk premium is arguably the most important number in modern finance with its implications stretching far and wide. However, over recent years the way this number has been derived has generally been a thoughtless process. As a result, there is a perceived consensus that the risk premium should be roughly 5%. Such a consensus has been shaped by naiveté in the investment community as historical returns have fallen within this proximity, with impressive consistency. Such a premium has been based on decades of historical returns that are no longer suited to today’s markets. These historical returns have been biased upwards as a result of previous events that cannot be expected to repeat going forward. Expecting a premium of 5% is seen as excessive, especially when viewed from a long-term horizon, to the extent that any serious financial institution would not bother holding bonds, as the probability of equities drastically outperforming would simply be too high. In the study we determine an unbiased estimate of the forward-looking South African equity risk premium. The determined premium is not just an isolated snapshot of today’s premium, but an objective expectation throughout the South African market history. To derive such an estimate, two fundamental components are determined. The first being an objective estimate of an expected real return from equities, with the second being a reasonable estimate of an expected real return from a relative risk-free asset. Based on the earlier work of Arnott and Bernstein (2002), the study demonstrates a forward-looking equity risk premium that is nowhere near the levels experienced in the past. Currently, an objective evaluation of previous returns and growth rates pegs the expected risk premium at 1.89%. Such a premium is certainly sobering and reveals a stark reality for anyone who is consistently expecting a 5% risk premium. We suggest that these investment professionals temper their expectations by more than halving their expected risk premium. , M.Com. (Financial Management)
- Full Text:
- Authors: De Almeida, Paulo Pires
- Date: 2015
- Subjects: Securities - South Africa , Capital market - South Africa , Money market - South Africa
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/54538 , uj:16236
- Description: Abstract: The expected equity risk premium is arguably the most important number in modern finance with its implications stretching far and wide. However, over recent years the way this number has been derived has generally been a thoughtless process. As a result, there is a perceived consensus that the risk premium should be roughly 5%. Such a consensus has been shaped by naiveté in the investment community as historical returns have fallen within this proximity, with impressive consistency. Such a premium has been based on decades of historical returns that are no longer suited to today’s markets. These historical returns have been biased upwards as a result of previous events that cannot be expected to repeat going forward. Expecting a premium of 5% is seen as excessive, especially when viewed from a long-term horizon, to the extent that any serious financial institution would not bother holding bonds, as the probability of equities drastically outperforming would simply be too high. In the study we determine an unbiased estimate of the forward-looking South African equity risk premium. The determined premium is not just an isolated snapshot of today’s premium, but an objective expectation throughout the South African market history. To derive such an estimate, two fundamental components are determined. The first being an objective estimate of an expected real return from equities, with the second being a reasonable estimate of an expected real return from a relative risk-free asset. Based on the earlier work of Arnott and Bernstein (2002), the study demonstrates a forward-looking equity risk premium that is nowhere near the levels experienced in the past. Currently, an objective evaluation of previous returns and growth rates pegs the expected risk premium at 1.89%. Such a premium is certainly sobering and reveals a stark reality for anyone who is consistently expecting a 5% risk premium. We suggest that these investment professionals temper their expectations by more than halving their expected risk premium. , M.Com. (Financial Management)
- Full Text:
A bi-faceted adsorptive performance of TiO₂-Coated carbon for the removal of fluorides in water
- Authors: Vilakati, Bongekile R.
- Date: 2015
- Subjects: Water - Purification , Fluorides , Adsorption , Titanium dioxide , Carbon
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/58770 , uj:16501
- Description: Abstract: Please refer to full text to view abstract , M.Sc. (Chemistry)
- Full Text:
- Authors: Vilakati, Bongekile R.
- Date: 2015
- Subjects: Water - Purification , Fluorides , Adsorption , Titanium dioxide , Carbon
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/58770 , uj:16501
- Description: Abstract: Please refer to full text to view abstract , M.Sc. (Chemistry)
- Full Text:
A business process re-engineering framework for financial institutions
- Authors: Nkomo, Bhasokazi Aphelele
- Date: 2020
- Subjects: Corporate reorganizations
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/474948 , uj:42827
- Description: Abstract: Financial institutions in South Africa are implementing business process re-engineering (BPR) on a regular basis due to the fast-changing industry. However, the success of these projects is low due to the lack of clearly defined roles, an unclear definition of what BPR is, the inability to link BPR projects to organisation strategies and the lack of documentation to guide BPR activities. Accordingly, there is a need to define a framework to guide the implementation of BPR projects... , M.Com. (Information Technology Management)
- Full Text:
- Authors: Nkomo, Bhasokazi Aphelele
- Date: 2020
- Subjects: Corporate reorganizations
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/474948 , uj:42827
- Description: Abstract: Financial institutions in South Africa are implementing business process re-engineering (BPR) on a regular basis due to the fast-changing industry. However, the success of these projects is low due to the lack of clearly defined roles, an unclear definition of what BPR is, the inability to link BPR projects to organisation strategies and the lack of documentation to guide BPR activities. Accordingly, there is a need to define a framework to guide the implementation of BPR projects... , M.Com. (Information Technology Management)
- Full Text:
A case series describing the effect of extremity manipulation on qEEG
- Authors: Randal-Smith, Devlin Sean
- Date: 2017
- Subjects: Chiropractic , Manipulation (Therapeutics) , Ankle , Electroencephalography , Relaxation
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/246598 , uj:25577
- Description: M.Tech. (Chiropractic) , Abstract: Purpose: The aim of this study was to describe the effect that an extremity manipulation particulary a talocrural joint (TCJM) manipulation had on qEEG. Method: A descriptive case series was chosen for this study. 10 participants that met the relevant inclusion and exclusion criteria were selected. The study looked to observe changes in the qEEG readings before and immediately following the extremity manipulation, as well as 30 minutes after the manipulation was delivered. The study took place in the Chiropractic Clinic at the University of Johannesburg’s Doornfontein campus. The 10 participants were screened for long axis extension talocrural joint restrictions. The qEEG was used to record the participants’ brain wave activity with their eyes open and then closed before any manipulation was given. Immediately following the manipulation, another recording was taken, again with the eyes open and then closed. Finally, the values 30 minutes post-manipulation were captured. Once again with the eyes open and then closed. The qEEG data was converted into mean values of the brain waves, delta, theta, alpha and beta. These values were used to find any statistical significance in the results. An analysis of the results was performed to identify relationships between the manipulation and brain wave activity within each of the lobes (frontal, temporal and parietal). Results: Findings of particular interest in this study were evident in all of the lobes. Beta and delta wave changes immediately following the manipulation, in the frontal lobe and temporal lobe were indicative of the participants’ increased relaxed/ resting states.. Alpha and delta wave changes in the parietal lobe following the manipulation and 30 minutes later were also suggestive of the participants’ increased relaxed and reflective state. Also important to consider was the patients immobile and quiet state throughout the trial. Conclusion: In this study, the findings are limited and inconclusive as there is no sure way to quantify how much of the increase in relaxation of the participant was a result of the extremity manipulation or the participants’ motionless and silent state. Research is severely limited on the relationship between peripheral joint manipulation and its effect on the brain. The only studies that exist are concerned with spinal manipulation. It is interesting to see that the degree of changes following the TCJM showed a similar extent of change as seen by the spinal studies. This could suggest that there are alternative factors responsible for the changes directly following the manipulation. The study has still made an encouraging contribution to the claim that chiropractic manipulation has an effect on qEEG readings, based on the...
- Full Text:
- Authors: Randal-Smith, Devlin Sean
- Date: 2017
- Subjects: Chiropractic , Manipulation (Therapeutics) , Ankle , Electroencephalography , Relaxation
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/246598 , uj:25577
- Description: M.Tech. (Chiropractic) , Abstract: Purpose: The aim of this study was to describe the effect that an extremity manipulation particulary a talocrural joint (TCJM) manipulation had on qEEG. Method: A descriptive case series was chosen for this study. 10 participants that met the relevant inclusion and exclusion criteria were selected. The study looked to observe changes in the qEEG readings before and immediately following the extremity manipulation, as well as 30 minutes after the manipulation was delivered. The study took place in the Chiropractic Clinic at the University of Johannesburg’s Doornfontein campus. The 10 participants were screened for long axis extension talocrural joint restrictions. The qEEG was used to record the participants’ brain wave activity with their eyes open and then closed before any manipulation was given. Immediately following the manipulation, another recording was taken, again with the eyes open and then closed. Finally, the values 30 minutes post-manipulation were captured. Once again with the eyes open and then closed. The qEEG data was converted into mean values of the brain waves, delta, theta, alpha and beta. These values were used to find any statistical significance in the results. An analysis of the results was performed to identify relationships between the manipulation and brain wave activity within each of the lobes (frontal, temporal and parietal). Results: Findings of particular interest in this study were evident in all of the lobes. Beta and delta wave changes immediately following the manipulation, in the frontal lobe and temporal lobe were indicative of the participants’ increased relaxed/ resting states.. Alpha and delta wave changes in the parietal lobe following the manipulation and 30 minutes later were also suggestive of the participants’ increased relaxed and reflective state. Also important to consider was the patients immobile and quiet state throughout the trial. Conclusion: In this study, the findings are limited and inconclusive as there is no sure way to quantify how much of the increase in relaxation of the participant was a result of the extremity manipulation or the participants’ motionless and silent state. Research is severely limited on the relationship between peripheral joint manipulation and its effect on the brain. The only studies that exist are concerned with spinal manipulation. It is interesting to see that the degree of changes following the TCJM showed a similar extent of change as seen by the spinal studies. This could suggest that there are alternative factors responsible for the changes directly following the manipulation. The study has still made an encouraging contribution to the claim that chiropractic manipulation has an effect on qEEG readings, based on the...
- Full Text:
A case series describing the effect of lumbar manipulation on qEEG
- Du Plessis, Pieter Hermanus Olivier
- Authors: Du Plessis, Pieter Hermanus Olivier
- Date: 2017
- Subjects: Chiropractic , Spinal adjustment , Electroencephalography
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/268590 , uj:28514
- Description: M.Tech. (Chiropractic) , Abstract: Purpose: The aim of the study was to compile a case series describing whether or not chiropractic manipulation delivered to lumbar spine motion restrictions have any recognisable effect on quantitative electroencephalogram readings. Method: A descriptive case series method was chosen for this study. The study took place at the University of Johannesburg’s Doornfontein campus, in the Chiropractic day clinic. The study consisted of 10 participants with lumbar spine motion restrictions. The electroencephalogram was used to record the participants’ brain wave activity with their eyes open and closed, before any lumbar manipulation was given. Post-manipulation, two measurements were taken, one while the participants’ eyes were open and one while the participants’ eyes were closed. The first measurement took place immediately after the manipulation, and the second measurement took place 30 minutes later. It was decided to simplify the quantitative electroencephalogram data to eyes open only, and the data was converted into mean values of the theta and beta brain waves. A change was described in the quantitative electroencephalogram readings following chiropractic manipulation for each individual participant, as well as during observation of the group average results. Results: After investigating the results, the brain waves showed distinct changes across all three lobes in all 10 participants. Typically there was either an increase or decrease immediately post manipulation. The majority of measurements across all lobes were higher than the initial baseline values 30 minutes post manipulation. Theta wave activity across the frontal and temporal lobes showed the same decrease-increase trend possibly due to the after-effect mechanism caused by lumbar manipulation. The largest increase in theta activity took place in the frontal lobe 30 minutes post manipulation. The most significant increase trend of the beta waves also took place in the frontal lobe, possibly due to the connection between the prefrontal cortex and the temporal and parietal association areas. The trends of these waves represent increased activity in the prefrontal cortex, leaving the participants in an attentive and vigilant state of information processing. The prefrontal cortex is responsible for activation of the executive function mechanism used to improve neurological function such as improved joint position sense, reaction time, cortical...
- Full Text:
- Authors: Du Plessis, Pieter Hermanus Olivier
- Date: 2017
- Subjects: Chiropractic , Spinal adjustment , Electroencephalography
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/268590 , uj:28514
- Description: M.Tech. (Chiropractic) , Abstract: Purpose: The aim of the study was to compile a case series describing whether or not chiropractic manipulation delivered to lumbar spine motion restrictions have any recognisable effect on quantitative electroencephalogram readings. Method: A descriptive case series method was chosen for this study. The study took place at the University of Johannesburg’s Doornfontein campus, in the Chiropractic day clinic. The study consisted of 10 participants with lumbar spine motion restrictions. The electroencephalogram was used to record the participants’ brain wave activity with their eyes open and closed, before any lumbar manipulation was given. Post-manipulation, two measurements were taken, one while the participants’ eyes were open and one while the participants’ eyes were closed. The first measurement took place immediately after the manipulation, and the second measurement took place 30 minutes later. It was decided to simplify the quantitative electroencephalogram data to eyes open only, and the data was converted into mean values of the theta and beta brain waves. A change was described in the quantitative electroencephalogram readings following chiropractic manipulation for each individual participant, as well as during observation of the group average results. Results: After investigating the results, the brain waves showed distinct changes across all three lobes in all 10 participants. Typically there was either an increase or decrease immediately post manipulation. The majority of measurements across all lobes were higher than the initial baseline values 30 minutes post manipulation. Theta wave activity across the frontal and temporal lobes showed the same decrease-increase trend possibly due to the after-effect mechanism caused by lumbar manipulation. The largest increase in theta activity took place in the frontal lobe 30 minutes post manipulation. The most significant increase trend of the beta waves also took place in the frontal lobe, possibly due to the connection between the prefrontal cortex and the temporal and parietal association areas. The trends of these waves represent increased activity in the prefrontal cortex, leaving the participants in an attentive and vigilant state of information processing. The prefrontal cortex is responsible for activation of the executive function mechanism used to improve neurological function such as improved joint position sense, reaction time, cortical...
- Full Text:
A case series describing the effect of thoracic manipulation on qEEG
- Authors: Bhamjee, Saeedah
- Date: 2017
- Subjects: Chiropractic , Spinal adjustment , Electroencephalography , Relaxation
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/268677 , uj:28524
- Description: M.Tech. (Chiropractic) , Abstract: Purpose: The aim of the study was to describe the effect of chiropractic manipulation of the thoracic spine on brain quantitative electro encephalogram (qEEG) readings. Method: A descriptive design following a case series approach was used to record changes in qEEG readings before and after a chiropractic manipulation. The study took place at the University of Johannesburg’s Doornfontein campus, in the Chiropractic clinic. The study comprised of 10 participants with thoracic motion restrictions. The brainwave activity of each participant was measured and recorded using the qEEG. A pre- manipulation reading was taken, which comprised of the measurement of the participants’ brain wave activity with their eyes open and then with their eyes closed. A post-manipulation reading was taken immediately after, also measured with eyes open and then eyes closed. Thirty minutes later a second post manipulation reading was taken, measured with eyes open and then eyes closed. The data was converted into mean values of the brain waves, delta, theta, alpha and beta. The results were analysed and described to find the relationship between the manipulation and the different areas of the brain with its associated brain wave activity. Results: Changes of particular interest were found across all three lobes. Alpha and delta wave changes in the parietal lobe were indicative of a relaxed and reflective state in participants. Changes in the delta and beta waves in the temporal and frontal lobe also showed the manipulations potential to increase the relaxed state in participants. Although, it should be noted that throughout the trial participants were in lying down in a quiet and un-stimulatory environment, which may also have contributed to the changes demonstrated. Conclusion: This study fully describes 10 participants and the manipulation effect on qEEG. Based on the results, chiropractic manipulation of the thoracic spine does have an effect on qEEG readings. However the motivation behind the results remain inconclusive. A larger group of participants are needed and the variables need to be more controlled to make a definite conclusion and allow for statistical analysis.
- Full Text:
- Authors: Bhamjee, Saeedah
- Date: 2017
- Subjects: Chiropractic , Spinal adjustment , Electroencephalography , Relaxation
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/268677 , uj:28524
- Description: M.Tech. (Chiropractic) , Abstract: Purpose: The aim of the study was to describe the effect of chiropractic manipulation of the thoracic spine on brain quantitative electro encephalogram (qEEG) readings. Method: A descriptive design following a case series approach was used to record changes in qEEG readings before and after a chiropractic manipulation. The study took place at the University of Johannesburg’s Doornfontein campus, in the Chiropractic clinic. The study comprised of 10 participants with thoracic motion restrictions. The brainwave activity of each participant was measured and recorded using the qEEG. A pre- manipulation reading was taken, which comprised of the measurement of the participants’ brain wave activity with their eyes open and then with their eyes closed. A post-manipulation reading was taken immediately after, also measured with eyes open and then eyes closed. Thirty minutes later a second post manipulation reading was taken, measured with eyes open and then eyes closed. The data was converted into mean values of the brain waves, delta, theta, alpha and beta. The results were analysed and described to find the relationship between the manipulation and the different areas of the brain with its associated brain wave activity. Results: Changes of particular interest were found across all three lobes. Alpha and delta wave changes in the parietal lobe were indicative of a relaxed and reflective state in participants. Changes in the delta and beta waves in the temporal and frontal lobe also showed the manipulations potential to increase the relaxed state in participants. Although, it should be noted that throughout the trial participants were in lying down in a quiet and un-stimulatory environment, which may also have contributed to the changes demonstrated. Conclusion: This study fully describes 10 participants and the manipulation effect on qEEG. Based on the results, chiropractic manipulation of the thoracic spine does have an effect on qEEG readings. However the motivation behind the results remain inconclusive. A larger group of participants are needed and the variables need to be more controlled to make a definite conclusion and allow for statistical analysis.
- Full Text:
A case series describing the medium term effect of cervical manipulation on qEEG
- Authors: Labuschagne, Larisha Rensia
- Date: 2017
- Subjects: Chiropractic , Cervical vertebrae , Spinal adjustment , Electroencephalography
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/268509 , uj:28504
- Description: M.Tech. (Chiropractic) , Abstract: Purpose: The aim of the study was to compile a case series describing the medium- term effect of cervical manipulation on quantitative electroencephalogram (qEEG) readings over multiple chiropractic manipulations. Method: A descriptive design was used to perform this study. One group, which consisted of 10 participants, contributed to this study to detect if a cervical manipulation may have an influence on brainwave activity over a period of time (and therefore qEEG readings). The study took place in the UJ Chiropractic Day Clinic on the Doornfontein Campus. The participants were manipulated once a week for three consecutive weeks. As qEEG readings are easily influenced by external stimuli, the participants were in a room with minimal stimulation. Each participant’s brainwaves were recorded with two-minutes eyes open and two-minutes eyes closed. They then received a cervical spine manipulation to restricted vertebrae followed with another two-minute eyes open and two-minute eyes closed intervals. Only the theta (slow waves) and beta (fast waves) values were converted into numerical values and were used to describe potential changes. Results: The frontal lobe presented the most varied readings throughout the three visits and the parietal lobe revealed the most active changes. Findings of particular interest in this study were evident in older participants and a single participant with peripheral complications. Conclusion: This study was done to describe the effect cervical manipulation has on qEEG (not a particular increase or decrease) in ten participants. It was shown that post-cervical manipulation over a medium - term theta and beta waves of all lobes demonstrated change. Further investigation is necessary in order to offer evidence on how and why a chiropractic manipulation may have an effect on qEEG as well as what the implications could mean.
- Full Text:
- Authors: Labuschagne, Larisha Rensia
- Date: 2017
- Subjects: Chiropractic , Cervical vertebrae , Spinal adjustment , Electroencephalography
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/268509 , uj:28504
- Description: M.Tech. (Chiropractic) , Abstract: Purpose: The aim of the study was to compile a case series describing the medium- term effect of cervical manipulation on quantitative electroencephalogram (qEEG) readings over multiple chiropractic manipulations. Method: A descriptive design was used to perform this study. One group, which consisted of 10 participants, contributed to this study to detect if a cervical manipulation may have an influence on brainwave activity over a period of time (and therefore qEEG readings). The study took place in the UJ Chiropractic Day Clinic on the Doornfontein Campus. The participants were manipulated once a week for three consecutive weeks. As qEEG readings are easily influenced by external stimuli, the participants were in a room with minimal stimulation. Each participant’s brainwaves were recorded with two-minutes eyes open and two-minutes eyes closed. They then received a cervical spine manipulation to restricted vertebrae followed with another two-minute eyes open and two-minute eyes closed intervals. Only the theta (slow waves) and beta (fast waves) values were converted into numerical values and were used to describe potential changes. Results: The frontal lobe presented the most varied readings throughout the three visits and the parietal lobe revealed the most active changes. Findings of particular interest in this study were evident in older participants and a single participant with peripheral complications. Conclusion: This study was done to describe the effect cervical manipulation has on qEEG (not a particular increase or decrease) in ten participants. It was shown that post-cervical manipulation over a medium - term theta and beta waves of all lobes demonstrated change. Further investigation is necessary in order to offer evidence on how and why a chiropractic manipulation may have an effect on qEEG as well as what the implications could mean.
- Full Text:
A case series describing the medium-term effects of cervical manipulation on qEEG readings in patients with chronic neck pain
- Authors: Jordaan, Gerné
- Date: 2018
- Subjects: Neck pain - Chiropractic treatment , Cervical vertebrae , Spinal adjustment , Electroencephalography
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/268717 , uj:28529
- Description: M.Tech. (Chiropractic) , Abstract: Background: It has been stated that a chiropractic manipulation does indeed have an effect on the central nervous system beyond the dorsal horn of the spinal cord and may have an effect on these measurements. It is known that chiropractic manipulation is an effective treatment method for chronic neck pain. Research sugests that a chiropractic manipulation has a direct influence on the sensorymotor intergration within the central nervous system. It is known that a chiropractic manipulation delivered to the cervical spine has a positive effect on neck pain. It is also mentioned that there is a need for further research to understand the neurological effects of chiropractic manipulation on brainwave activity. Aim: The aim of is this study was to compile a case series describing the medium-term effects of chiropractic manipulation on qEEG in patients with chronic neck pain. This research has the potential to allow further research to be done in this field. This research may redefine the limits of chiropractic treatment on the nervous system. Methodology: A descriptive design following a case series was best suited for this study. This allowed to track changes of the EEG recordings before and after a chiropractic manipulation over a 2-week time period with 4 treatments at biweekly intervals. A numerical pain rating scale was used to ascertain each participant’s pain at the initial and last visit. The qEEG was measured using a MP150 Biopac System. Results: All 10 cases were described, with all showing changes in qEEG readings post treatment as well as over the study of varying amount. All participants also demonstrated changes in the numerical pain scale. Each participant displayed a decrease in pain with some participants indicating full resolution of symptoms. Conclusion: There appears to be a change in pre- and immediately post-manipulation readings as well as reduction in pain. This demonstrates an effect on the medium-term qEEG readings. Further research into this topic however is required to determine the meaning of this change.
- Full Text:
- Authors: Jordaan, Gerné
- Date: 2018
- Subjects: Neck pain - Chiropractic treatment , Cervical vertebrae , Spinal adjustment , Electroencephalography
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/268717 , uj:28529
- Description: M.Tech. (Chiropractic) , Abstract: Background: It has been stated that a chiropractic manipulation does indeed have an effect on the central nervous system beyond the dorsal horn of the spinal cord and may have an effect on these measurements. It is known that chiropractic manipulation is an effective treatment method for chronic neck pain. Research sugests that a chiropractic manipulation has a direct influence on the sensorymotor intergration within the central nervous system. It is known that a chiropractic manipulation delivered to the cervical spine has a positive effect on neck pain. It is also mentioned that there is a need for further research to understand the neurological effects of chiropractic manipulation on brainwave activity. Aim: The aim of is this study was to compile a case series describing the medium-term effects of chiropractic manipulation on qEEG in patients with chronic neck pain. This research has the potential to allow further research to be done in this field. This research may redefine the limits of chiropractic treatment on the nervous system. Methodology: A descriptive design following a case series was best suited for this study. This allowed to track changes of the EEG recordings before and after a chiropractic manipulation over a 2-week time period with 4 treatments at biweekly intervals. A numerical pain rating scale was used to ascertain each participant’s pain at the initial and last visit. The qEEG was measured using a MP150 Biopac System. Results: All 10 cases were described, with all showing changes in qEEG readings post treatment as well as over the study of varying amount. All participants also demonstrated changes in the numerical pain scale. Each participant displayed a decrease in pain with some participants indicating full resolution of symptoms. Conclusion: There appears to be a change in pre- and immediately post-manipulation readings as well as reduction in pain. This demonstrates an effect on the medium-term qEEG readings. Further research into this topic however is required to determine the meaning of this change.
- Full Text:
A case study evaluation of the effectiveness of the supply conditions on the foreclosure as a result of vertical mergers
- Authors: Mahlangu, Themba
- Date: 2019
- Subjects: Consolidation and merger of corporations , Foreclosure
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/296311 , uj:32282
- Description: M.Com. (Development Economics) , Abstract: This paper uses a difference in difference model to assess the effectiveness of supply conditions as remedies for significant input foreclosure concerns resulting from anti-competitive vertical mergers. The paper reviews supply conditions imposed by the South African Competition Authorities as remedies for input foreclosure concerns in the following vertical mergers, namely: Thaba Chueu merger and Senmin International merger. The results of the model shows that the effectiveness of the supply conditions as remedies for input foreclosure concerns depends mainly on upstream market dynamics. The finding of the paper suggest that supply conditions would be effective in alleviating input foreclosure concerns resulting from vertical merger if the following conditions are met, namely: the upstream competitor(s) of the merger firm has capacity to supply the downstream non-integrated firm; if there is potential and/or imminent entry into the input market (upstream market); and if downstream competitors of the merged entity can within a reasonable time find and be able to procure alternative identical inputs from the alternative supplier without incurring significant switching costs, that is, the ability of downstream competitors to realign their purchase partners within the reasonable time frames. The paper concludes and recommends that Competition Authorities should consider the presence of these conditions in trying to remedy input foreclosure concerns resulting from vertical mergers through long term supply conditions. Furthermore and equally important is that in drafting these supply agreements as effectively remedy the input foreclosure concerns, the agreements must be written in a manner that there are complete, that is, they do not result in opportunism or hold-ups. This include, amongst others, a clear product specification, required quality, and clear pricing methodology to be applied if necessary.
- Full Text:
- Authors: Mahlangu, Themba
- Date: 2019
- Subjects: Consolidation and merger of corporations , Foreclosure
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/296311 , uj:32282
- Description: M.Com. (Development Economics) , Abstract: This paper uses a difference in difference model to assess the effectiveness of supply conditions as remedies for significant input foreclosure concerns resulting from anti-competitive vertical mergers. The paper reviews supply conditions imposed by the South African Competition Authorities as remedies for input foreclosure concerns in the following vertical mergers, namely: Thaba Chueu merger and Senmin International merger. The results of the model shows that the effectiveness of the supply conditions as remedies for input foreclosure concerns depends mainly on upstream market dynamics. The finding of the paper suggest that supply conditions would be effective in alleviating input foreclosure concerns resulting from vertical merger if the following conditions are met, namely: the upstream competitor(s) of the merger firm has capacity to supply the downstream non-integrated firm; if there is potential and/or imminent entry into the input market (upstream market); and if downstream competitors of the merged entity can within a reasonable time find and be able to procure alternative identical inputs from the alternative supplier without incurring significant switching costs, that is, the ability of downstream competitors to realign their purchase partners within the reasonable time frames. The paper concludes and recommends that Competition Authorities should consider the presence of these conditions in trying to remedy input foreclosure concerns resulting from vertical mergers through long term supply conditions. Furthermore and equally important is that in drafting these supply agreements as effectively remedy the input foreclosure concerns, the agreements must be written in a manner that there are complete, that is, they do not result in opportunism or hold-ups. This include, amongst others, a clear product specification, required quality, and clear pricing methodology to be applied if necessary.
- Full Text:
A case study of the support services provided by a Child and Youth Care Centre (CYCC) to adolescent witnesses of domestic violence
- Authors: Bezuidenhout, Suzanne
- Date: 2017
- Subjects: Family violence - South Africa , Crisis intervention (Mental health services) - South Africa , Children and violence - South Africa , Child care services - South Africa
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/271425 , uj:28867
- Description: M.A. (Clinical Social Work) , Abstract: Domestic violence is a significant social issue in society and is escalating each day (Jouriles, McDonald, Smith Slep, Heyman, & Garrido, 2008). Research studies in South Africa demonstrate how approximately 25% of women are assaulted or abused by an intimate partner on a daily basis (Idemudia, 2009; Idemudia & Makhubela, 2011; Peltzer, Masego, & Mabeda, 2003). Adolescents and children are often exposed to this violence as they live within this same violent household (Garrido, Culhane, Petrenko, & Taussig, 2011). Research in the United States of America suggests that approximately 30% of adolescents reside in a violent household where domestic violence has occurred at least once in the past year (McDonald, Jouriles, Ramisetty-Mikler, Caetano, & Green, 2006). No research on this subject could be found in the context of South Africa. It is therefore evident that virtually no research has been conducted on the impact of domestic violence on adolescents who witness domestic violence in South Africa. It has been argued that domestic violence could have negative consequences on adolescents and children exposed to it (Chan & Yeung, 2009). In some cases, adolescents and children who are exposed to domestic violence within the household are removed by a social worker and placed in alternative care (Children’s Act, 30 of 2005). Alternative care might include a placement in foster care, adoption, temporary safe care or a child and youth care centre (CYCC). This research is particularly concerned with adolescents and children who were placed in a CYCC after witnessing domestic violence. The aim of this study is to consider both the adolescents’ and the social service practitioners’ (SSP) perceptions and experiences of the support services provided by the CYCC to adolescent witnesses of domestic violence. This study revealed that there are no specialised services at the CYCC to support adolescent witnesses of domestic violence. The services that are available seem to be generic and aimed at addressing problem behaviours in children and adolescents, rather than providing proactive, therapeutic support to deal with trauma such as witnessing physical and verbal violence between their caregivers or abuse in alternative care. The adolescents did not experience the services as being useful or sufficient. One manager, two social workers and one house mother shared sufficient information regarding the generic services that are delivered by the CYCC. The other SSP, including one house mother and two child and youth care workers, did not have any information relating to these services. In the end, there was a lack of alignment between the adolescents’ and SSPs’ views and perceptions of support services.
- Full Text:
- Authors: Bezuidenhout, Suzanne
- Date: 2017
- Subjects: Family violence - South Africa , Crisis intervention (Mental health services) - South Africa , Children and violence - South Africa , Child care services - South Africa
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/271425 , uj:28867
- Description: M.A. (Clinical Social Work) , Abstract: Domestic violence is a significant social issue in society and is escalating each day (Jouriles, McDonald, Smith Slep, Heyman, & Garrido, 2008). Research studies in South Africa demonstrate how approximately 25% of women are assaulted or abused by an intimate partner on a daily basis (Idemudia, 2009; Idemudia & Makhubela, 2011; Peltzer, Masego, & Mabeda, 2003). Adolescents and children are often exposed to this violence as they live within this same violent household (Garrido, Culhane, Petrenko, & Taussig, 2011). Research in the United States of America suggests that approximately 30% of adolescents reside in a violent household where domestic violence has occurred at least once in the past year (McDonald, Jouriles, Ramisetty-Mikler, Caetano, & Green, 2006). No research on this subject could be found in the context of South Africa. It is therefore evident that virtually no research has been conducted on the impact of domestic violence on adolescents who witness domestic violence in South Africa. It has been argued that domestic violence could have negative consequences on adolescents and children exposed to it (Chan & Yeung, 2009). In some cases, adolescents and children who are exposed to domestic violence within the household are removed by a social worker and placed in alternative care (Children’s Act, 30 of 2005). Alternative care might include a placement in foster care, adoption, temporary safe care or a child and youth care centre (CYCC). This research is particularly concerned with adolescents and children who were placed in a CYCC after witnessing domestic violence. The aim of this study is to consider both the adolescents’ and the social service practitioners’ (SSP) perceptions and experiences of the support services provided by the CYCC to adolescent witnesses of domestic violence. This study revealed that there are no specialised services at the CYCC to support adolescent witnesses of domestic violence. The services that are available seem to be generic and aimed at addressing problem behaviours in children and adolescents, rather than providing proactive, therapeutic support to deal with trauma such as witnessing physical and verbal violence between their caregivers or abuse in alternative care. The adolescents did not experience the services as being useful or sufficient. One manager, two social workers and one house mother shared sufficient information regarding the generic services that are delivered by the CYCC. The other SSP, including one house mother and two child and youth care workers, did not have any information relating to these services. In the end, there was a lack of alignment between the adolescents’ and SSPs’ views and perceptions of support services.
- Full Text:
A case study on the historical water quality trends pertaining to the Jukskei River in the Gauteng Province, South Africa
- Jardine-Da Silva, Janavi Mellissa
- Authors: Jardine-Da Silva, Janavi Mellissa
- Date: 2016
- Subjects: Water quality management - South Africa - Jukskei River
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/84717 , uj:19256
- Description: Abstract: Due to the geographical position of the Jukskei River in the built-up and densely populated landscape, it has been historically subject to many water quality problems, particularly of bacterial nature, as well as from other pollution sources. At one stage, between 1995 and 2005, this river was subject to increasing pH levels and variable concentrations of sulphates, potassium, phosphates and nitrates. The potential for flooding and changes in water quality are expected to have a direct correlation to the changes in surface coverage of the built environment surrounding the Jukskei River. Major storm water management concerns have arisen in urban areas as a result of increased severity and frequency of flooding, with detrimental consequences for society and the environment. There is therefore a dire need to constantly monitor water quality, as the pollution loads gathered in the Jukskei channel ultimately reach the Hartbeespoort Dam, which is already in a state of high eutrophication. In responding to these water management challenges, it is crucial to understand the relationship between land use change, rainfall trends and water quality, so that storm water runoff can be managed effectively and efficiently. Data which was obtained from the Department of Water Affairs (DWA) for the 28 year period from 1986 to 2014, shows overall concentrations of pollutants for three sites (Site A, Site B and Site C) along the Jukskei River. This correlates inversely to the increases in average water flows at these sites. The increased water flow and increased urban land use coverage over the period may be responsible for the decrease in pollutant concentrations at these sites. The reasons for the more marked decrease in pollutant concentrations at Site A than Site B may be that Site A is located downstream of Site B. This could be due to the increased incidence of development-related impermeable surfaces occurring in close proximity to Site B, whereas Site A is further from the urban edge. It appears that an increase in the area of impermeable surfaces over time is negatively correlated with pollutant concentrations. This would imply that increased impermeable surfaces provide increased flow into the Jukskei River and therefore allow for the dilution of pollutants entering this river. This negative correlation is expected to continue into the future and the dilution effect may possibly be enhanced with increased development of impermeable surfaces within Johannesburg, depending on other water quality inputs. , M.Sc. (Environmental Management)
- Full Text:
- Authors: Jardine-Da Silva, Janavi Mellissa
- Date: 2016
- Subjects: Water quality management - South Africa - Jukskei River
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/84717 , uj:19256
- Description: Abstract: Due to the geographical position of the Jukskei River in the built-up and densely populated landscape, it has been historically subject to many water quality problems, particularly of bacterial nature, as well as from other pollution sources. At one stage, between 1995 and 2005, this river was subject to increasing pH levels and variable concentrations of sulphates, potassium, phosphates and nitrates. The potential for flooding and changes in water quality are expected to have a direct correlation to the changes in surface coverage of the built environment surrounding the Jukskei River. Major storm water management concerns have arisen in urban areas as a result of increased severity and frequency of flooding, with detrimental consequences for society and the environment. There is therefore a dire need to constantly monitor water quality, as the pollution loads gathered in the Jukskei channel ultimately reach the Hartbeespoort Dam, which is already in a state of high eutrophication. In responding to these water management challenges, it is crucial to understand the relationship between land use change, rainfall trends and water quality, so that storm water runoff can be managed effectively and efficiently. Data which was obtained from the Department of Water Affairs (DWA) for the 28 year period from 1986 to 2014, shows overall concentrations of pollutants for three sites (Site A, Site B and Site C) along the Jukskei River. This correlates inversely to the increases in average water flows at these sites. The increased water flow and increased urban land use coverage over the period may be responsible for the decrease in pollutant concentrations at these sites. The reasons for the more marked decrease in pollutant concentrations at Site A than Site B may be that Site A is located downstream of Site B. This could be due to the increased incidence of development-related impermeable surfaces occurring in close proximity to Site B, whereas Site A is further from the urban edge. It appears that an increase in the area of impermeable surfaces over time is negatively correlated with pollutant concentrations. This would imply that increased impermeable surfaces provide increased flow into the Jukskei River and therefore allow for the dilution of pollutants entering this river. This negative correlation is expected to continue into the future and the dilution effect may possibly be enhanced with increased development of impermeable surfaces within Johannesburg, depending on other water quality inputs. , M.Sc. (Environmental Management)
- Full Text:
A chiropractic approach to impingement syndrome of the shoulder
- Authors: Masumpa, Bongani Godfrey
- Date: 2017
- Subjects: Shoulder - Wounds and injuries - Chiropractic treatment , Shoulder pain - Chiropractic treatment
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/226419 , uj:22892
- Description: M.Tech. (Chiropractic) , Abstract: INTRODUCTION: Shoulder pain has become a socioeconomic burden in recent times, it is one of the most common musculoskeletal disorders. Studies have shown that shoulder pain affects between 2.4% to 4.8% of the general public. Subacromial impingement syndrome (SIS) has been reported as one of the common conditions that patients present with. AIM: The aim of this study was to give a detailed description on the chiropractic approach to treating SIS. The description included treatment protocols, treatment time phases and outcomes. METHODOLOGY: The study had a total of 10 participants who ranged between the ages of 18 and 65. The patients were assessed accordingly to see if they were compatible with the requirements of the study. Based on the results of their orthopaedic assessment each, of the 10 participants were diagnosed with SIS and included in the study. The patients were treated individually, it was important that each case was treated as a unique and individual case. Treatment protocols were designed uniquely for each patient based on their presentation of symptoms on the day. The treatment time phases varied and were reported, as each patient had unique response time to the treatments. RESULTS: The results revealed that 7 out of the 10 patients responded favourably to the chiropractic based treatment for SIS. The 7 patients all experienced full restoration of their range of motion and a reduction of their pain levels. These patients did not return for additional treatment and reported an improvement in their quality of life by the end of the study. The other 3 patients also experience partially positive outcomes from the treatment. These patients also experienced partial but satisfactory restoration of their ROM and also reduction of their pain levels. All 10 patients were given home based rehabilitation tasks to perform until they were totally recovered. None of the patients returned for additional treatment by the end of the study phase...
- Full Text:
- Authors: Masumpa, Bongani Godfrey
- Date: 2017
- Subjects: Shoulder - Wounds and injuries - Chiropractic treatment , Shoulder pain - Chiropractic treatment
- Language: English
- Type: Masters (Thesis)
- Identifier: http://hdl.handle.net/10210/226419 , uj:22892
- Description: M.Tech. (Chiropractic) , Abstract: INTRODUCTION: Shoulder pain has become a socioeconomic burden in recent times, it is one of the most common musculoskeletal disorders. Studies have shown that shoulder pain affects between 2.4% to 4.8% of the general public. Subacromial impingement syndrome (SIS) has been reported as one of the common conditions that patients present with. AIM: The aim of this study was to give a detailed description on the chiropractic approach to treating SIS. The description included treatment protocols, treatment time phases and outcomes. METHODOLOGY: The study had a total of 10 participants who ranged between the ages of 18 and 65. The patients were assessed accordingly to see if they were compatible with the requirements of the study. Based on the results of their orthopaedic assessment each, of the 10 participants were diagnosed with SIS and included in the study. The patients were treated individually, it was important that each case was treated as a unique and individual case. Treatment protocols were designed uniquely for each patient based on their presentation of symptoms on the day. The treatment time phases varied and were reported, as each patient had unique response time to the treatments. RESULTS: The results revealed that 7 out of the 10 patients responded favourably to the chiropractic based treatment for SIS. The 7 patients all experienced full restoration of their range of motion and a reduction of their pain levels. These patients did not return for additional treatment and reported an improvement in their quality of life by the end of the study. The other 3 patients also experience partially positive outcomes from the treatment. These patients also experienced partial but satisfactory restoration of their ROM and also reduction of their pain levels. All 10 patients were given home based rehabilitation tasks to perform until they were totally recovered. None of the patients returned for additional treatment by the end of the study phase...
- Full Text: