The influence of endorsed professional surfers on consumer attitude towards surf brands
- Authors: Greybe, Frikkie
- Date: 2011
- Subjects: Brand name products , Branding (Marketing) , Surfers
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8671 , http://hdl.handle.net/10948/d1008470 , Brand name products , Branding (Marketing) , Surfers
- Description: Sport, with the help of the media, plays a huge role in today’s society. Sport fans are following their favourite athlete and teams religiously as they compete locally and internationally. Over a century ago, the first professional athlete was endorsed. Since then companies are investing millions of dollars in athlete endorsement to promote brand awareness under consumers. The surfing industry is no different. With the Association of Professional Surfers (ASP) world tour, the big surf companies are jumping at the opportunity to sponsor pro surfers to market their products. Previous studies have shown athletes can evoke both positive and negative attitudes towards their endorsing brand thus effecting company’s sales. The aim of this study was to research the influence these endorsed pro surfers have on consumer behaviour towards their brand in a local market. A qualitative study was done on local surfers in Port Elizabeth, South Africa. Results showed that favourite surfers evoke a positive attitude towards their sponsoring brand. However this influence does not seem to be as significant as in other sports. Surf companies within the industry should be aware of the big influence age has on the consumers behaviour and that different age groups follow different surfers. Companies should choose to sponsor professional surfers that fit the image of the company and the products, not necessarily the professional surfer who performs the best. Using professional surfers in advertising of products does create better brand awareness, but endorsed professional surfers are not likely to change consumer’s perceptions of the endorsing brand’s products.
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- Date Issued: 2011
The influence of fire and plantation management on Wetlands on the Tsitsikamma plateau
- Authors: Hugo, Christine Denise
- Date: 2011
- Subjects: Forest management -- South Africa -- Tsitsikama Plateau , Dragonflies -- Effect of habitat modification on -- South Africa -- Tsitsikama Plateau
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10747 , http://hdl.handle.net/10948/1464 , Forest management -- South Africa -- Tsitsikama Plateau , Dragonflies -- Effect of habitat modification on -- South Africa -- Tsitsikama Plateau
- Description: Wetlands on the extensively afforested Tsitsikamma Plateau are prone to fire and according to foresters, they behave as fire channels that under bergwind conditions rapidly carry fire into plantations. The destruction of plantations causes great economic loss and MTO would therefore prefer to afforest some smaller wetlands to limit the fire hazard. This study was carried out in the middle of a drought period and sought to determine the influence of fire, plantation management and the environment on wetlands and its component species. This study of palustrine wetlands on the Tsitsikamma Plateau identified five wetland vegetation communities, in which plant species richness was relatively low. Plant compositional structure of wetlands is influenced by wetland location, the height of the adjacent plantation and fire frequency. This study found a pronounced plant species turnover from west to east and soil coarseness increased along the same gradient. Re-sprouters dominated the wetland communities in the Tsitsikamma but a few populations of the obligate re-seeding ‘Near threatened’ Leucadendron conicum rely on fire for rejuvenation purposes. Regarding dragonflies in wetlands, abundance was found to be low, while species richness was relatively high considering the absence of surface water. The study found that fire indirectly influenced dragonfly abundance and species composition by altering vegetation structure. Dragonfly abundance and species richness was generally higher in wetlands with older vegetation (≥ 9 years). Further, most dragonflies frequenting the palustrine wetland habitats were females. Seeing that female dragonflies spend most of their time away from prime breeding habitats to escape male harassment, the study indicated these wetlands as important refuge habitats for them. Dragonfly abundance is expected to increase once the drought ends; however, the overall patterns observed are likely to remain unchanged under wetter conditions. Narrow wetlands (< 10 m) are few on the plateau and it is not advisable to sacrifice wider wetlands in the Tsitsikamma. Further, with regards to ecological processes and wetlands’ influence on the surrounding Tsitsikamma matrix, more research is needed before wetlands may be sacrificed. To deal with the fire risk the Tsitsikamma environment poses to plantations, it is strongly recommended to establish and maintain a cleared buffer area between plantations and wetlands. Further, for vegetation rejuvenation purposes, it is important to burn wetlands at irregular intervals but not more frequently than every nine years and not less frequently than every 25-30 years.
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- Date Issued: 2011
The influence of genetic relatedness on sociality and demography of female African elephants
- Authors: Munishi, Linus Kasian
- Date: 2011
- Subjects: African elephant , Wildlife conservation , Elephants -- Africa
- Language: English
- Type: Thesis , Doctoral , DPhil
- Identifier: vital:10711 , http://hdl.handle.net/10948/d1011612 , African elephant , Wildlife conservation , Elephants -- Africa
- Description: Many elephant populations across Africa were or are being devastated by poaching and habitat loss, making population and range size for the species important issues of conservation concern in elephant ranging areas, including Tarangire National Park (TNP). Poaching and/or overhunting are known to have direct effects on the demography of elephant populations. The current understanding of the indirect effects of poaching on the sociality and demography of elephant populations is relatively poor, both at the group and an individual level. In this thesis the importance of genetic relatedness (as influenced by poaching) on sociality and demography of the female elephants was studied, using a combination of genetic, observation of behaviour and two decades of demography data collected from the northern subpopulation of TNP. I investigated and characterized the relatedness categories within elephant groups. Using a conceptual model for group size analysis in aggregation economies, I hypothesized that elephant populations subject to social disruptions due to poaching would exhibit characteristics of the free entry model, whereas more stable, closed populations would better fit the group-controlled model. I present a rare quantitative analysis of genetic relatedness and group size patterns among groups of adult female elephants in two wild populations: one in Tarangire National Park (TNP), Tanzania, and another in Addo Elephant National Park (AENP), South Africa. I demonstrate that the group size in African elephant populations is governed by genetic relatedness, and that poaching/overhunting has a significant influence upon the apparent group formation and size in elephants. I then focused on the effect of relatedness on agonistic interactions between adult females. I hypothesized that individual-based aggressive interactions among adult female African elephants would vary according to degree of kinship, with closely related dyads showing less aggression towards each other in resource-limited environments, thereby leading to indirect fitness benefits for individuals. As predicted, females did not show agonistic interactions to their close kin most often, and the frequency and intensity of aggressive interactions was inversely related to the degree of relatedness of the interactants. The effect of group relatedness and structure on reproductive success of individual female African elephant in TNP was also investigated. Adult female reproductive success was significantly influenced by within- group relatedness and structure. Higher reproductive success (with higher frequency of calf production and survival and more female calves produced) were more evident in the closely related groups than groups with low relatedness, suggesting that females from genetically disrupted groups are less likely to be reproductive than those in closely related groups. The possibility of negative effects of poaching on the subsequent generation of poached adult females and the alternative of a positive demographic response through reduced density was assessed by analysing the demographic patterns of the first generation (F1) females of prime-aged adult female African elephants in TNP using within- group relatedness and size. I also compared vital rate (age of first birth and interbirth interval) responses of first generation (F1) cows from Tarangire (poached) elephants with other females from poached (Northern Luangwa National Park, Zambia) and unpoached (Amboseli National Park, Kenya and Addo Elephant National Park, South Africa) populations. Group relatedness had no significant effect on sex ratio of the F1 cows‟ calves. There was a significant difference between the mean age of first birth and interbirth interval of F1 cows from the two (poached, Tarangire and unpoached, Amboseli National Park) elephant populations, suggesting that elephant populations reduced by poaching to low levels show an increase vigour through release from density constraints. Based on these results, the broader implications of secondary effects of poaching on elephant populations are critically evaluated. Also the importance of understanding the consequences of these effects is highlighted in light of other elephant conservation and management approaches. This understanding is useful in making conservation and management decisions for elephants and other biodiversity.
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- Date Issued: 2011
The influence of leadership on the organisational effectiveness of SAPS precincts
- Authors: Chetty, Sandy-Lee
- Date: 2011
- Subjects: South Africa Police Service , Organizational effectiveness -- South Africa -- Nelson Mandela Bay , Leadership -- South Africa -- Nelson Mandela Bay
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8607 , http://hdl.handle.net/10948/1590 , South Africa Police Service , Organizational effectiveness -- South Africa -- Nelson Mandela Bay , Leadership -- South Africa -- Nelson Mandela Bay
- Description: Public institutions have the responsibility to deliver various services to the public in the most effective and efficient manner. In South Africa, many public sector reforms were instituted after 1994. The main reasons for these reforms were to improve the access of the historically disadvantaged to public services, to increase efficiencies, to reduce costs and to reduce public debt. Despite improvements to the policy framework that underpins service delivery by the public sector, however, there are still many challenges in the delivery of public services. An improved public policy to deliver service alone is not enough if not supported by effective systems and processes for actual delivery, as well as effective leadership that leads and ensures the delivery of such services. Improving the organisational effectiveness of public institutions is therefore important in South Africa. The present study explores the role that leadership plays in the pursuit of organisational effectiveness in a selected public institution, namely the South African Police Service (SAPS). The primary objective of this study is to improve the organisational effectiveness of SAPS in the Nelson Mandela Bay municipal area by investigating the influence of leadership style (transactional and transformational) and personality (Machiavellian, narcissistic, collectivistic, masculine and feminine) on organisational effectiveness of SAPS (as measured by overall organisational performance and the individual job performance intentions of police officers). The research design is positivistic, as the relationships among the above-mentioned variables are statistically tested. The sample consisted of 90 police officers of senior rank drawn from five police stations in the Nelson Mandela Bay. The empirical results were reported and interpreted. These results revealed that constructive narcissistic and collectivistic leadership personality traits, as well as transformational leadership style exert a positive influence on the organisational performance of the Nelson Mandela Bay police precincts. The empirical results also showed that collectivistic leadership personality traits influence the performance intent of these police officials positively. These results are discussed in terms of the implications they hold for the managers of police precincts. The limitations of the study are reported which provide areas for future research.
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- Date Issued: 2011
The influence of selected non-governmental organisations (NGOs) on policy-making in the Eastern Cape Amathole District Municipality and the eight local municipalities within the district
- Authors: Aiyegoro, Adeola Ikeoluwa
- Date: 2011
- Subjects: Non-governmental organizations -- South Africa -- Eastern Cape , Municipal government -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Municipal officials and employees -- South Africa -- Eastern Cape , Policy sciences
- Language: English
- Type: Thesis , Masters , MPA
- Identifier: vital:11644 , http://hdl.handle.net/10353/d1001253 , Non-governmental organizations -- South Africa -- Eastern Cape , Municipal government -- South Africa -- Eastern Cape , Local government -- South Africa -- Eastern Cape , Municipal officials and employees -- South Africa -- Eastern Cape , Policy sciences
- Description: Since 1994, the South African Government embarked on an ambitious Reconstruction and Development Program (RDP) to correct the injustices of the past. One of the major programmes, which the government is implementing within the RDP framework, is the ―Integrated National Electrification Programme‖ (INEP) with the aim to address the electricity backlog by 2012. Recent figures from Statistics SA, indicate substantial progress with regard to access to electricity throughout the country and especially in previously disadvantaged areas. This study is an investigation of the impact of access to free basic electricity (FBE) on the welfare of indigent households in Buffalo City Municipality (BCM). This study aims at better understanding ways in which indigent households use electricity and to what extent access to electricity is improving the level of poverty in the households. Empirical evidences from pro-poor electrification programmes worldwide and especially in Asia suggest that greater access to electricity by poor people leads to economic and social development at both micro and macro levels. This study investigates the impact of electricity on household poverty, with focus on household income, household health and children‘s education. This study used mixed research methods to investigate the research problem. Both quantitative and qualitative data were collected using survey questionnaires, focus group discussions and interviews of key informants.
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- Date Issued: 2011
The justice of Dikê on the forms and significance of dispute settlement by arbitration in the Iliad
- Authors: Malamis, Daniel Scott Christos
- Date: 2011
- Subjects: Homer. Iliad Epic poetry, Greek -- History and criticism Law in literature Justice in literature Dispute resolution (Law) Arbitration and award (Greek law)
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:3587 , http://hdl.handle.net/10962/d1002162
- Description: This thesis explores the forms and significance of dispute settlement by arbitration, or ‘δίκη’, in the Iliad. I take as my focus the ‘storm simile’ of Iliad XVI: 384-393, which describes Zeus’ theodical reaction to corruption within the δίκη-court, and the ‘shield trial’ of Iliad XVIII: 498-508, which presents a detailed picture of such a court in action, and compare the forms and conception of arbitration that emerge from these two ecphrastic passages with those found in the narrative body of the poem. Analysing the terminology and procedures associated with dispute settlement in the Iliad, I explore the evidence for the development of an ‘ideology of δίκη’, that valorises arbitrated settlement as a solution to conflict, and that identifies δίκη as a procedure and a civic institution with an objective standard of fairness: the foundation of a civic concept of ‘justice’. I argue that this ideology is fully articulated in the storm simile and the shield trial, as well as Hesiod’s Works and Days, but that it is also detectable in the narrative body of the Iliad. I further argue that the poet of the Iliad employs references to this ideology, through the narrative media of speech and ecphrasis, to prompt and direct his audience’s evaluation of the nature and outcome of the poem’s central conflict: the dispute of Achilles and Agamemnon.
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- Date Issued: 2011
The laws of Lerotholi: role and status of codified rules of custom in the kingdom of Lesotho
- Authors: Juma, Laurence
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/128810 , vital:36162 , https://heinonline.org/HOL/P?h=hein.journals/pacinlwr23ampi=94
- Description: The status of customary law in African societies is diminished by factors, most of which are generated by the machinery of the modern state. But its mantle, kept alive by neo-traditional scholarship and a commitment to multiculturalism in the post-independence era, has nevertheless sustained an active discussion on its relevance to the future of law and the general administration of justice in African states.2
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- Date Issued: 2011
The legal and regulatory aspects of international remittances within the SADC region
- Authors: Mbalekwa, Simbarashe
- Date: 2011
- Subjects: Emigrant remittances -- South Africa , Foreign exchange -- South Africa , Finance -- Government policy -- Developing countries , Transfer payments -- Developing countries
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10210 , http://hdl.handle.net/10948/d1006368 , Emigrant remittances -- South Africa , Foreign exchange -- South Africa , Finance -- Government policy -- Developing countries , Transfer payments -- Developing countries
- Description: Migrant labourers who cross borders often have to send money back to their various countries of origin. These monetary transfers are known as remittances. To send these funds migrants often opt to rely on informal mechanisms as opposed to the remittance services of formal financial institutions such as banks. Informal remittance mechanisms raise a number of concerns such as those related to consumer protection. In contrast to formal channels informal channels are not based on any legally binding agreements. They are highly based on trust and do not offer any legally binding guarantee that the funds will be delivered or that the remitter will be reimbursed in the event of non-delivery. Aside from consumer protection concerns, informal remittances also raise security related concerns. These channels are not subject to the supervision of any regulatory authority and usually offer a high level of anonymity. They can act as an attractive mechanism for terrorists and criminal organisations to launder and mobilise their illicit funds. Taking into mind the concerns mentioned above, as well as others, it would be preferable for more remittances to be channeled through formal financial mechanisms. In conducting research on remittance transactions financial, as well as other institutions and organisations, have outlined legal and regulatory provisions in sending and recipient countries as being a factor that often hinders migrants from accessing formal financial services. This dissertation examines how the South African legal and regulatory framework affects the formalisation of remittances by migrant labourers, with a focus on the context of low-income migrants. The study identifies the Exchange control, immigration, anti-money laundering and anti-terrorism legislative provisions as being the most significant provisions that affect the formalisation of migrant remittances. So as to make an analysis and gather recommendations were possible, a comparison of the South African legal and regulatory provisions is made to those of Zambia and Zimbabwe. The dissertation comes to the conclusion that South African legal and regulatory provisions hinder the formalisation of migrant remittances to a certain extent. They do so by collectively and individually restricting migrants who do not fulfill legislative requisites from accessing formal remittance channels. It is submitted that such migrants are inclined to rely on informal remittance mechanisms when the need to send money arises. Furthermore, South African law restricts competition within the remittance market by making it difficult for service providers to enter the market. The lack of an adequate competitive level fosters the prevalence of high remittance costs which can pose a significant barrier to low income migrants that wish to channel funds via formal means. Taking into mind the significance of formalising remittances as well as the objectives that the laws that hinder them seek to attain, which are equally significant, it is necessary for the regulatory authorities to investigate ways on how to possibly cater for both. It is submitted that if more remittances were to be channeled through official means the objectives sought to be attained by some of these legislative provisions would be attained more efficiently.
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- Date Issued: 2011
The legal and regulatory aspects of international remittances within the SADC region
- Authors: Mbalekwa, Simbarashe
- Date: 2011
- Subjects: Emigrant remittances , Foreign exchange , Finance -- Government policy -- Developing countries , Transfer payments -- Developing countries
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10280 , http://hdl.handle.net/10948/1373 , Emigrant remittances , Foreign exchange , Finance -- Government policy -- Developing countries , Transfer payments -- Developing countries
- Description: Migrant labourers who cross borders often have to send money back to their various countries of origin. These monetary transfers are known as remittances. To send these funds migrants often opt to rely on informal mechanisms as opposed to the remittance services of formal financial institutions such as banks. Informal remittance mechanisms raise a number of concerns such as those related to consumer protection. In contrast to formal channels informal channels are not based on any legally binding agreements. They are highly based on trust and do not offer any legally binding guarantee that the funds will be delivered or that the remitter will be reimbursed in the event of non-delivery. Aside from consumer protection concerns, informal remittances also raise security related concerns. These channels are not subject to the supervision of any regulatory authority and usually offer a high level of anonymity. They can act as an attractive mechanism for terrorists and criminal organisations to launder and mobilise their illicit funds. Taking into mind the concerns mentioned above, as well as others, it would be preferable for more remittances to be channelled through formal financial mechanisms. In conducting research on remittance transactions financial, as well as other institutions and organisations, have outlined legal and regulatory provisions in sending and recipient countries as being a factor that often hinders migrants from accessing formal financial services. This dissertation examines how the South African legal and regulatory framework affects the formalisation of remittances by migrant labourers, with a focus on the context of low-income migrants. The study identifies the Exchange control, immigration, anti-money laundering and anti-terrorism legislative provisions as being the most significant provisions that affect the formalisation of migrant remittances. So as to make an analysis and gather recommendations were possible, a comparison of the South African legal and regulatory provisions is made to those of Zambia and Zimbabwe. xiii The dissertation comes to the conclusion that South African legal and regulatory provisions hinder the formalisation of migrant remittances to a certain extent. They do so by collectively and individually restricting migrants who do not fulfil legislative requisites from accessing formal remittance channels. It is submitted that such migrants are inclined to rely on informal remittance mechanisms when the need to send money arises. Furthermore, South African law restricts competition within the remittance market by making it difficult for service providers to enter the market. The lack of an adequate competitive level fosters the prevalence of high remittance costs which can pose a significant barrier to low income migrants that wish to channel funds via formal means. Taking into mind the significance of formalising remittances as well as the objectives that the laws that hinder them seek to attain, which are equally significant, it is necessary for the regulatory authorities to investigate ways on how to possibly cater for both. It is submitted that if more remittances were to be channelled through official means the objectives sought to be attained by some of these legislative provisions would be attained more efficiently.
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- Date Issued: 2011
The legal framework pertaining to selected segments of the financial market
- Authors: Swart, Lynette
- Date: 2011
- Subjects: Financial institutions -- Law and legislation -- South Africa , Finance, Public -- Law and legislation -- South Africa
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:10216 , http://hdl.handle.net/10948/1425 , Financial institutions -- Law and legislation -- South Africa , Finance, Public -- Law and legislation -- South Africa
- Description: A sound financial system is the cornerstone of any country‘s economy. As South Africa has always been deemed to have a sound legal framework pertaining to the financial market, it has never faced the situation where it had to extensively review its entire legal framework. However, the recent global economic meltdown left policy makers, internationally, questioning the soundness of their financial systems and South Africa has been no exception. This dissertation provides an overview of the legal framework pertaining to selected segments of the financial market. This legal framework is then tested against certain selected issues highlighted by the global economic meltdown in order to establish whether it was and still is sufficiently robust to effectively negotiate these challenges. In order to deal with the selected segments of the legal framework pertaining to the financial market as comprehensively as possible, the selected segments for the purposes of this dissertation include the capital market, the money market and the derivative market. This dissertation also evaluates the impact of other recent domestic developments pertaining to securities settlement in South Africa. These developments include the recently promulgated Companies Act 71 of 2008 and the currently drafted Participant Failure Manual. This dissertation suggests that the Companies Act 71 of 2008 will have a significant impact on securities settlement. It is recommended that companies, holders of uncertificated securities and holders of beneficial interests in uncertificated securities familiarise themselves with their revised rights and obligations in order to, amongst other things, ensure compliance with this new legislative framework. This dissertation reveals that, even though our financial system has been found to be fundamentally sound and thus far have dealt with the global economic meltdown quite well, legislative reform to conform to international best practice is imperative. It is recommended that policy makers should strive to ensure that the South African legal framework pertaining to the financial market is sufficiently aligned with the principles, methodologies and recommendations as provided for by the international institutions providing best practice. The highlighted areas of legislative reform include the legal frameworks pertaining to credit rating agencies, investor due diligence, ix crisis management tools, compensation structures, accounting and valuations standards, issuer transparency, market transparency and risk management. This dissertation highlights that a significant amount of legislative amendments and endorsements by the relevant regulators and the Master of the Court are required for the successful integration of the Participant Failure Manual into the legal framework pertaining to the financial market. If, when and how the notion of Participant Failure will be accepted and regulated by the relevant regulators, without creating a conflict of interest, remains a question to be answered.
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- Date Issued: 2011
The lived experience of meaning in life and satisfaction with life among older adults
- Authors: Cooper, Holly
- Date: 2011
- Subjects: Meaning (Psychology) , Satisfaction , Old age , Old age homes
- Language: English
- Type: Thesis , Masters , MA
- Identifier: http://hdl.handle.net/10948/4398 , vital:20595
- Description: The purpose of the study was to explore and describe the meaning in life and satisfaction with life of the elderly living in the old age institutions.
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- Date Issued: 2011
The management of the antecedents of absenteeism at a motor manufacturing company
- Authors: Mandleni, Oscar
- Date: 2011
- Subjects: Absenteeism (Labor) , Motor industry , Production management
- Language: English
- Type: Thesis , Masters , MBA
- Identifier: vital:8755 , http://hdl.handle.net/10948/d1011559 , Absenteeism (Labor) , Motor industry , Production management
- Description: Absenteeism is a complex set of behaviours masquerading as a unitary phenomenon. Absenteeism is a big problem in the motor manufacturing industry, especially, because of the number of processes that are labour intensive. Absenteeism is a multifaceted problem with many antecedents which make it challenging to resolve or contain. Financial impact is one of the consequences of absenteeism on a business, especially when one thinks that the primary objective of a firm in to make money. Absenteeism defeats these objectives through cost incurred for overtime to catch up production losses. Furthermore, in cases where replacement of personnel is necessary, this may include administrative costs related to the time human resource personnel spend looking for replacement employees or the time production management spends re-assigning employees. Absenteeism results in decreased productivity and may affect the quality of the product due to the increased workload and burden put on employees who are at work. Absenteeism is classified into scheduled and unscheduled absenteeism. Although some absenteeism is avoidable, it is important to understand that some absence is unavoidable. This is because people may fall ill, get injured or have unavoidable obligations which may lead to absenteeism. The purpose of this study was to identify the antecedents of absenteeism, with the assumption that once they are identified, they can be controlled, reduced or eliminated and the absenteeism rate thus reduced. The theoretical study focused on defining absenteeism, ascertaining the impact of absenteeism in the workplace, especially in an international organisation in the motor manufacturing industry and discussing the antecedents of absenteeism and strategies that can be used to manage these antecedents. The empirical study consisted of a survey, with a questionnaire as a data collecting tool. The process used to conduct the survey was to distribute the questionnaire among production employees in three operational units; namely Final Assembly, Paint Shop and Body Shop at a motor manufacturing company. Employees were approached, the purpose of the questionnaire explained and they were asked if they would be willing to complete the questionnaire. Employees who agreed to complete the questionnaire were briefed on the contents of the questionnaire and the completion process. The relationship between biographical variables and absenteeism was discussed. For the purpose of this study the following independent variables were discussed: age, marital status, gender, work area, length of service and number of dependents. The empirical study focused on the antecedents of absenteeism, and specifically job, organisational and personal factors, as well supervisors‟ attempts to manage absenteeism. The respondents indicated that they believed absenteeism was a problem in the study and that people stayed away for reasons other than genuine illness. It was recommended that absenteeism figures, such as the overall Gross Absence Rate (GAR) and Absence Frequency Rate for the organisation, and specific work areas and teams, are regularly communicated to employees and displayed prominently to emphasise the importance of attendance. Some suggestions were that: Supervisors should foster a genuinely respectful relationship between themselves and employees which will results in employees feeling obliged to be at work. The company should introduce a day care or crèche at work to allow female employees to bring their kids to work in the event they are unable to be looked after at home. Alcohol and drug abuse should not be seen as an external problem in the organisation but rather as something an organisation should get involved in to assist employee who might have a problem. The first step was to create a channel where employee can feel free to approach the company if they are in need of help. The study demonstrated that it was important to identify antecedents in order to address the real problems related to absenteeism.
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- Date Issued: 2011
The medicinal chemistry of cyclo(D-Phe-2Cl-Pro) and cyclo(Phe-4F-Pro)
- Authors: Ndung'u, Susan Wanjiru
- Date: 2011
- Subjects: Peptide drugs , Cyclic peptides , Pharmaceutical chemistry , Peptides -- Synthesis
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10948/7083 , vital:21223
- Description: Although peptides and proteins are considered as lead compounds for the discovery and development of new therapeutic agents, poor metabolic and physical properties have limited their optimisation as drug candidates (Adessi & Soto, 2002). Research by medicinal chemists however, generated the discovery of structural similarities between some peptides and diketopiperazines and the common occurrence of such compounds in natural products. This discovery initiated the synthesis of diketopiperazines from amino acids in an attempt to bypass the previously mentioned limitations of using peptides as drug candidates (Dinsmore & Beshore, 2002). Diketopiperazines (DKPs) are the simplest form of cyclic dipeptides, and a class of unexplored bioactive peptides that have great potential for the future. The compounds are relatively simple to synthesise and are prevalent in nature (Prasad, 1995). The DKP backbone is rigid and therefore poses conformational constraint on the compounds. This rigidity allows for simple conformational analysis of the compounds and also gives insight into the conformational requirements for interaction with the targets involved in their biological activity. The reduced conformational freedom also increases the receptor specificity and thus the compounds are proposed to have less unfavourable effects (Anteunis, 1978). The aim of the study was to synthesise compounds that would exhibit metabolic stability, receptor specificity and enhanced lipophilicity which would increase the bioavailability of the compounds. This was to be achieved by the introduction of fluorine and chlorine elements into the DKPs. The structure of the DKPs would be altered which in turn would improve the physicochemical properties and the biological activity of the compounds (Naumann, 1999). Cyclo(D-Phe-2Cl-Pro) and cyclo(Phe-4F-Pro) were synthesised using the method of Milne et al. (1992) and by boiling the linear counterparts under reflux in sec-butanol-toluene. The structures of the synthesised DKPs were elucidated using mass spectrometry, nuclear magnetic resonance spectroscopy, infrared spectroscopy and molecular modeling. Qualitative analysis and evaluation of the physicochemical properties of the DKPs were performed using high-performance liquid chromatography, scanning electron microscopy, thermogravimetric analysis, differential scanning calorimetry and x-ray powder diffraction. The study aimed to determine the biological activity of cyclo(D-Phe-2Cl-Pro) and cyclo(Phe-4F-Pro) with respect to their anticancer, antimicrobial, haematological and antidiabetic effects. The anticancer results obtained indicated that the percentage inhibition produced by both DKPs were lower than those proposed by Graz et al. (2000) for proline-containing DKPs where, a greater than 50% inhibition was observed for cyclo(Phe-Pro). Antimicrobial studies revealed that both DKPs demonstrated marginal effects on Gram-positive and Gram-negative organisms but showed significant effects against C. albicans. The haematological studies revealed that cyclo(D-Phe-2Cl-Pro) at a screening concentration of 12.5 mM, significantly decreased the levels of D-dimer (P < 0.0001). The antidiabetics studies showed limited activity of the DKPs in inhibiting the activity of α-glucosidase and α-amylase enzymes.
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- Date Issued: 2011
The mindful therapist: an interpretive phenomenological analysis of mindfulness meditation and the therapeutic alliance
- Authors: Gillitt, Tarryn
- Date: 2011
- Subjects: Mindfulness-based cognitive therapy Meditation -- Therapeutic use Psychotherapy Counseling psychology
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2982 , http://hdl.handle.net/10962/d1002491
- Description: The aim of this study was to present and understand therapists’ experiences of the impact of their mindfulness meditation practice on their role in the therapeutic alliance. The topic emerged in response to extant research recommendations and researcher observations of the compatibility between mindfulness meditation outcomes and the demands on therapists for establishing effective alliances with clients. The study adopted an interpretive phenomenological analysis strategy located within the qualitative paradigm, and thus a small sample of therapists practicing mindfulness meditation were selected and interviewed on their experiences using semi-structured interviewing. Data were analysed for meaning units, which were then interpreted inductively and hermeneutically and categorized into superordinate themes. Three superordinate themes within participants’ experiences of how their mindfulness meditation practice impacts upon their role in the alliance were determined, namely: ‘self-care’; ‘insight into the structure of selfhood’; and ‘immediate mindfulness meditation during therapy’. This study found these experiences capacitated participants with compassionate interpersonal affects used for creating secure bonds with clients; skills for accurate empathic understanding; and skills and attitudes for working collaboratively with clients. Should future research confirm these findings, mindfulness meditation may be used as a tool to developed alliance formation abilities for therapists in training. Importantly, findings from this project called for a more comprehensive integration of theoretical positions on the construct of mindfulness meditation.
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- Date Issued: 2011
The nexilitas factor: host-guest relationships in small owner managed commercial accommodation facilities in contemporary South Africa
- Authors: Von Lengeling, Volkher Heinrich Christoph
- Date: 2011
- Subjects: Hospitality industry -- South Africa Interpersonal relations Social interaction Liminality Consumer behavior Home-based businesses -- South Africa
- Language: English
- Type: Thesis , Masters , MA
- Identifier: vital:2093 , http://hdl.handle.net/10962/d1002656
- Description: The commercialization of hospitality established arguably the oldest profession. Historically small commercial hospitality establishments, known as inns in the western world, were of ill repute. Perhaps connected to their reputation, this category of accommodation facility has been seriously neglected as an area of academic inquiry, particularly from the perspective of the host. While there has been a huge growth in the interdisciplinary field of tourism studies in recent decades, little attention has been paid to the role of the host in the host-guest relationship at whatever level of analysis. This thesis seeks to redress the balance. Hospitality is a basic form of social bonding. This type of bonding, where a hierarchy between strangers is implicit (as with hosts and guests), may be termed ‘nexilitas’; nexilitas is a form of social bonding in liminal circumstances. To that extent it is comparable to ‘communitas’ which describes social bonding between equals in certain liminal circumstances. The difference is that nexilitas is a form of bonding between individuals in a complex power relationship. The host controls the hospitality space, but custom also empowers the guest with certain expectations, especially in the commercial context. The thesis identifies the various forms of hospitality – traditional ‘true’ or ‘pure’ hospitality, social hospitality, cultural hospitality and commercial hospitality – and discusses these critically in their historical and cross-cultural contexts, with emphasis on the perspective of the host. The passage of hospitality is then traced through the three phases of preliminality, liminality and post-liminality and discussed along the themes anticipation, arrival and accommodation and finally departure of the guest. While the historical and ethnographic review is mainly based on written histories and the experiences of other anthropologists as guests as well as ethnographers, the passage of hospitality draws on the multi-sited auto-anthropological experiences of the author, both as host and as ethnographer of contemporary South African hosts in small owner-managed commercial hospitality establishments.
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- Date Issued: 2011
The next decade of environmental science in South Africa: a horizon scan
- Authors: Shackleton, Charlie M , Scholes, Robert J , Vogel, Coleen , Wynberg, Rachel , Abrahamse, Tanya , Shackleton, Sheona E , Ellery, William F N , Gambiza, James
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/157124 , vital:40088 , https://doi.org/10.1080/03736245.2011.563064
- Description: Environmental systems are in constant flux, with feedbacks and non-linearities catalysed by natural trends and shocks as well as human actions. This poses challenges for sustainable management to promote human well-being. It requires environmental understanding and application that can accommodate such fluxes and pressures, as well as knowledge production systems and institutions that produce graduates with appropriate skills. In this article we consider these challenges in the South African context. Firstly, we summarise six significant environmental realisations from the last decade of environmental science internationally and question what they mean for the teaching of environmental science and research into environmental systems in South Africa in the near future. We then consider these lessons within the context of a horizon scan of near-term pressing environmental issues in South Africa. These include wateruse efficiency, poverty, food security, inequities in land and resource access, urbanisation, agrochemicals and water quality, promoting human well-being and economic adaptability in the face of climate change, and imbuing stronger environmental elements and stewardship into the integrated development planning processes and outcomes. Lastly, we consider the knowledge areas and skills that environmental graduates will require to be able to confront these problems in South Africa and simultaneously contribute to international debates and understandings around the complexity of environmental systems and how to manage them.
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- Date Issued: 2011
The obligation of non-discrimination under the General Agreement on Trade in Services (GATS) and the agreement on Trade-related aspects of Intellectual Property Rights (TRIPS): a developmental perspective
- Authors: Bidie, Simphiwe Sincere
- Date: 2011
- Subjects: Food -- Relief -- Law -- Legislation , Food supply -- Law and legislation , Foreign trade regulation
- Language: English
- Type: Thesis , Masters , LLM
- Identifier: vital:11113 , http://hdl.handle.net/10353/338 , Food -- Relief -- Law -- Legislation , Food supply -- Law and legislation , Foreign trade regulation
- Description: The non-discrimination obligation has existed since the twelfth century. It has been practiced since then, changing from a conditional to unconditional form with the passage of time. It became firmly applied unconditionally at the multilateral level in 1947 after the formation of the GATT trading system upon which several countries based their trading relations. In 1995 when the WTO was formed, the underlying principles of the GATT 1947 became part of the WTO trading system, including the non-discrimination obligation. When countries join the WTO they automatically become subject to the non-discrimination obligation. The ever increasing value of services and trade in the value of intellectual property has necessitated a look at the fundamental principles of world trade that countries have to adhere to in their trade relations. Incidentally, countries are not at the same level economically, hence one of the purposes of the WTO is to facilitate development in developing countries. Accordingly, this requires different application and/or interpretation of these fundamental principles in different situations, depending on the development level of each Member country. Amongst the five principles that underlie the international trading system, the non-discrimination principle is the focus of this study. The sustainability of the entire economic relations between WTO Member countries is dependent upon their fair compliance with this obligation. The obligation is found in Articles II and XVII of the GATS and Articles 3 and 4 of the TRIPS. The Membership of the WTO is made up of developed and developing countries. As a result of the fundamental nature of the obligation it is imperative that the scope and interpretation of this obligation, as developed by WTO adjudicating bodies, be analysed to determine if the obligation’s application and/or interpretation satisfies the above fundamental object and purpose of the multilateral system of trade. The intention here is at all times to show the importance that the non-discrimination obligation carries in international economic and legal interactions and how non-observance of this obligation would negatively affect relations between Member countries of the WTO.
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- Date Issued: 2011
The origin and development of the Nyl River floodplain wetland, Limpopo Province, South Africa: trunk–tributary river interactions in a dryland setting
- Authors: McCarthy, T S , Tooth, Stephen , Jacobs, Zenobia , Rowberry, Matthew D , Thompson, Mark , Brandt, Dion , Hancox, P John , Marren, Philip M , Woodborne, Stephan , Ellery, William F N
- Date: 2011
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/144321 , vital:38331 , DOI: 10.1080/03736245.2011.619324
- Description: The Nyl River floodplain wetland, one of South Africa's largest floodplain wetlands and a Ramsar site of international conservation importance, is located in an area of long-term and still active valley sediment accumulation. Creation of accommodation space for sedimentation has previously been attributed to tectonic controls, but new investigations reveal that a more likely cause is progradation of coarse-grained tributary fans across the narrow river valley downstream of the main area of floodplain wetland. Obstruction of trunk river flow and sediment transfer by these tributary fans has led to backponding and upstream gradient reduction and to accumulation of valley fills up to ∼35 m thick. Chronological control for the timing and rate of sediment accumulation is limited, but we hypothesise that a semi-arid to arid climate, characterised by asynchronous trunk–tributary activity that results in marked discontinuities in downstream water and sediment transfer, is likely to have been a key control. These interpretations are supported by other studies of dryland rivers globally and the findings add to our growing understanding of the controls on the origin and development of southern African wetlands, particularly by demonstrating how the combination of a particular physiography and a dryland climate can impart some distinctive geomorphological characteristics.
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- Date Issued: 2011
The photodecomposition of different polymorphic forms of 1,4-dihydropyridine channel blockers
- Authors: Francis, Farzaana
- Date: 2011
- Subjects: Photodegradation , Nifedipine , Nimodipine , Dihydropyridine
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:10378 , http://hdl.handle.net/10948/1496 , Photodegradation , Nifedipine , Nimodipine , Dihydropyridine
- Description: 1,4-Dihydropyridines (DHPs) are a classification of compounds used as calcium channel blockers in the treatment of various conditions. These compounds readily undergo photodegradation. The degradants produced have no pharmaceutical activity and render the drugs ineffective. DHPs also exhibit polymorphism. Nifedipine and Nimodipine are two such drugs. This study aimed to monitor the photodegradation of these two drugs and to establish the effect of particle size, polymorphism and β-Cyclodextrin (β-CD) on the rate of photodegradation. Different polymorphs (namely the amorphous and stable crystalline polymorphs) of the two drugs were prepared for use in the study. Mixtures of each drug with β-CD were also prepared for photostability studies. The mixtures were prepared in a 1:1 molar ratio. The rate of photodegradation was studied with a 500 W metal halide lamp in accordance to ICH guidelines. The study employed samples on a small scale where degradation was analysed with High Performance Liquid Chromatography, and also samples on a larger scale where degradation was monitored with Powder X-ray Diffraction. The two sets of results of observing the degradation process by two analytical techniques where compared in terms of their quantification methods. The extent of photodegradation was suitably modelled and fitted using the Avrami-Erofeyev kinetic equation. Smaller particle size showed increased photodegradation for Nimodipine; the effect was insignificant for Nifedipine however. For both drugs it was found that the amorphous polymorph underwent faster photodegradation. The study showed that β-CD caused an increase in photodegradation for both drugs under these experimental conditions.
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- Date Issued: 2011
The photophysical properties of low symmetry phthalocyanines in conjunction with quantum dots
- Authors: D'Souza, Sarah
- Date: 2011
- Subjects: Phthalocyanines , Photochemistry , Zinc , Quantum dots , Spectrum analysis , Nanoparticles
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:4331 , http://hdl.handle.net/10962/d1004992 , Phthalocyanines , Photochemistry , Zinc , Quantum dots , Spectrum analysis , Nanoparticles
- Description: he synthesis, extensive spectroscopic characterization and photophysical studies of low symmetry zinc phthalocyanine have been conducted. Comparisons have been made taking into consideration the influence of the solvent properties as well as substituent type and position. Photosensitizing properties of the zinc phthalocyanine derivatives in the presence of thiol capped CdTe quantum dots (QDs) were compared. The QDs were used as energy transfer donors and to facilitate with energy transfer through Förster resonance energy transfer (FRET) from the QDs to the MPcs. The linkage of unsymmetrically substituted 4-monoaminophenoxy zinc phthalocyanine (ZnAPPc) to CdTe quantum dots capped with mercaptopropionic acid (MPA), L-cysteine (L-cys) or thioglycolic acid (TGA) has been achieved using the coupling agents ethyl-N3 dimethylaminopropyl)carbodiimide (EDC) and N-hydroxy succinimide (NHS), which facilitate formation of an amide bond to form the QD-ZnAPPc-linked complex. The formation of the amide bond was confirmed using UV-Vis, Raman and IR spectroscopies, as well as AFM (atomic force microscopy). Förster resonance energy transfer (FRET) resulted in stimulated emission of ZnAPPc in both the linked (QDZnAPPc-linked) and mixed (QD:ZnAPPc-mixed) conjugates for MPA only. The linked L-cys and TGA complexes (QD-ZnAPPc-linked) gave the largest FRET efficiencies hence showing the advantages of covalent linking. Fluorescence quantum yields of QDs were decreased in QD:ZnAPPc-mixed and QD:ZnAPPc-linked. High triplet state quantum yields were obtained for the linked QD-phthalocyanine derivatives (ZnAPPc)and monoaminozinc phthalocyanine (ZnAPc) compared to when ZnAPPc and ZnAPc were mixed with MPA QDs without a chemical bond.
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- Date Issued: 2011