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Understanding the poverty-reducing livelihoods of child support grant caregivers in Riebeeck East, South Africa

  • Authors: Chikukwa, Vimbainashe
  • Date: 2015
  • Subjects: Archer, Margaret Scotford -- Political and social views , Child caregivers -- South Africa -- Riebeek-Oos , Public welfare -- South Africa -- Riebeek-Oos , Grants-in-aid -- South Africa -- Riebeek-Oos , Poverty -- South Africa -- Riebeek-Oos , Critical realism , South Africa -- Social conditions -- 1994- , South Africa -- Economic conditions -- 1991-
  • Language: English
  • Type: Thesis , Masters , MSocSc
  • Identifier: vital:3393 , http://hdl.handle.net/10962/d1018196
  • Description: In 1994, racial domination in the form of apartheid ended in South Africa and the first postapartheid government was elected through a non-racial and democratic franchise. The new government inherited an entrenched system of racial inequality as well as widespread poverty amongst the formerly oppressed population, and it sought to address these challenges through policies of redistribution based on a new progressive constitution which emphasised the realisation of socio-economic rights. At the same time, and despite its redistributive measures, the post-apartheid government has pursued a macro-economic strategy with pronounced neoliberal dimensions. One of its critical redistributive measures focuses on social assistance to poor blacks, and this has entailed the construction and expansion of a massive social grant system including the child support grant which is received by millions of black South Africans on a monthly basis. The objective of this thesis is to examine and understand the livelihoods of child support grant recipients (or caregivers) in the context of conditions of extreme vulnerability marked by poverty. It does so by focusing on the small town of Riebeek East located in the Eastern Cape Province of South Africa. Though undoubtedly child support grant caregivers are victims of poverty, the thesis demonstrates that they are not without agency. They exist in structural conditions of vulnerability and poverty, but they nevertheless seek to manoeuvre and negotiate their way in and through their conditions of existence. This does not necessarily alleviate their poverty in any significant manner but it does show evidence of reflexivity, decision-making and responsibility in the pursuit of livelihood practices and outcomes. In making this argument, I draw upon the mega-theory of Margaret Archer (specifically, her morphogenetic approach) and the more middle-level perspective of the Sustainable Livelihoods Framework. Beyond contributing to the prevailing academic literature on the child support grant in South Africa, this thesis also hopefully makes a small contribution to controversies about structure and agency within sociology.
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  • Date Issued: 2015

Understanding workplace bullying in SMME's of South Africa

  • Authors: Bruère, Hildé
  • Date: 2015
  • Subjects: Bullying in the workplace -- South Africa , Business enterprises -- South Africa
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: vital:8844 , http://hdl.handle.net/10948/d1020092
  • Description: Workplace bullying is a modern day problem which employers cannot afford to ignore. The impact on both the business (or organisation) and individual is of such a nature that research is needed to understand it better and to determine the extent to which it is present in the business or organisation. Research thus far covered the prevalence, consequences and causes of bullying in the organisation. Various methods to counteract and prevent it have been investigated, but with reference to the South African context knowledge is lacking. This study focuses on workplace bullying in SMMEs as very little research has been done in this field. The purpose of this study is to be able to provide a framework for managers as to how to deal, prevent and minimise workplace bullying in SMMEs of South Africa. A convenient sample was selected and information was gathered by means of a questionnaire. A quantitative study was executed and the prevalence of bullying in the SMMEs was established and a number of independent variables were tested. The independent variables researched were managerial training, awareness training, a corporate anti-bullying policy, risk assessment and mediation. The main findings were that bullying in SMMEs is indeed prevalent, but that the independent variables did not deliver significant correlations. The practical implications for managers are that strategies and tools used in larger organisations are not applicable in SMMEs. The workplace environment of the SMME is unique and different methods and tools must be identified and applied in combatting workplace bullying. The contribution of this study is that managers in South Africa across the broad industrial spectrum must realise that bullying is prevalent and that corporate policies and measures must be put in place to address it. It can no longer be ignored and further research on the subject must be encouraged.
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  • Date Issued: 2015

Unfair discrimination in recruitment practices

  • Authors: Brand, Hugo
  • Date: 2015
  • Subjects: Labor laws and legislation -- South Africa , Employment interviewing , Discrimination in employment
  • Language: English
  • Type: Thesis , Masters , LLM
  • Identifier: vital:10260 , http://hdl.handle.net/10948/d1021197
  • Description: The focus of this paper is to emphasize the importance for every employer to avoid unfair discrimination during the recruitment process and to value diversity in the workplace. This is not only a legal requirement, but also gives an employer the best chance of getting the right person for the job. It is crucial to understand that job applicants are mostly people that employer’s do not actually employ, but might be able to make an unfair discrimination claim against the employer if the claimant believes he/she was not selected for a job because the employer discriminated against them unlawfully in the recruitment process. When writing the job description and a person specification, the employer should state clearly what tasks the person will have to execute and what skills will be needed for the job. Job descriptions should accurately describe the genuine essential duties and inherent requirements of the job. Personnel specifications should accurately describe the relevant, non-discriminatory and objectively justifiable requirements to be met by the post-holder. Specifications should not have any requirements that are not directly related to the job and it is important for employers to provide evidence that each recruitment and screening practice is job-related and consistent with business necessity. Employers are advised to devise and implement recruitment procedures and guidelines for all staff and applicants involved in the process of recruitment and to ensure that these incorporate the principles of the organisation’s equal opportunity principles. Employers should administer recruitment and other selection procedures without regard to race, colour, national origin, sex, religion, age and disability. Even though South Africa is now governed by a new democratic order, historical workplace inequalities still need to be addressed. Not only compelled to redress inequalities by the Constitution, the South African government was motivated by the International Labour Organisation (ILO) to enact laws that would prohibit discrimination and promote the economic advancement of the majority. Recruitment tests or selection procedures must be job-related and its results appropriate for the employer’s purpose. If a recruitment procedure screens out a protected group, the employer should determine whether there is an equally effective alternative selection procedure that has less adverse impact and, if so, adopt the alternative procedure. The justification of discrimination in recruitment practices and affirmative action is only meaningful if it is targeted towards particular aims. One of the more important defences against unfair discrimination in the workplace is the general fairness defence. The general fairness defence is considered to be an applicable defence based on fairness in situations where the two statutory exceptions do not apply. This means than when one looks at the concept of unfair discrimination it implies that discrimination may be justified in certain circumstances Legislation prohibits discrimination on various grounds especially throughout the process of recruitment and selection. There are limited exceptions to the general principle that it is unlawful to use gender, race, religion or sexual orientation as a criterion in the recruitment process. These exceptions are known as genuine occupational qualifications and the specifications for jobs should be carefully examined to ensure that there are no factors contained that are indirectly discriminatory. Focus must be placed on avoiding indirect discrimination in job factors. In the early stages of the recruitment process, an employee specification should be written that describes the type of person the employer seeks to be appointed in terms of qualifications, experience, skills and personal attributes. The imposition of inappropriate or unsuccessfully high standards or criteria may indirectly discriminate against people from a particular minority or racial group or religion. Employees must have the necessary skills to demand employment equity status especially where a designated employer does not have sufficient affirmative action employees and is obliged to rectify the situation. However, this does not mean that affirmative action applicants must be chosen above non-affirmative action employees. The principle of reversed discrimination stands firm if the motivation for appointing a particular person is based on a genuine desire to promote diversity, to apply affirmative action and to increase the numbers of people from a disadvantaged group in employment, or to create a more balanced workforce.
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  • Date Issued: 2015

Unfair labour practice relating to promotion in the public education sector

  • Authors: Tsheko, Toto
  • Date: 2015
  • Subjects: Unfair labor practices , Mediation
  • Language: English
  • Type: Thesis , Masters , LLM
  • Identifier: http://hdl.handle.net/10948/6050 , vital:21034
  • Description: This topic deals with unfair labour practice relating to promotion and will focus mainly on the public education sector. The Labour Relations Act of 1956 and 1995, with respect to the concept of unfair labour practice, will be analysed. It is through this discussion that one appreciates how the concept of unfair labour practices has evolved in South African law. An attempt is made to define promotion and in this regard reference is made to cases decided upon by the Commission for Conciliation, Mediation and Arbitration (CCMA) or the Labour Court (LC). Furthermore, promotion is defined within the context of public education and applicable legislation. Due regard must be to the employment relationship between the employer and the employee as well as compare the current employee’s job with the job applied to. Unfair conduct by the employer will be discussed within the context of promotion. The prerogative of the employer will be discussed with reference to case law and that discussion will include an analysis of various principles with regard to procedural and substantive fairness. Various remedies provided for in dispute resolution mechanism in line with the provisions of the Labour Relations Act 66 of 1995 and relevant case laws will also be discussed. The last chapter deals with how to strike a balance between employee rights (that is educators) and the rights of learners, in the context of promotion disputes. In this regard reference to case laws will be made. In general the topic will deal with unfair labour practice, definition of promotion including promotion of educators, unfair conduct of the employer, onus of proof, remedies and striking the balance between the rights of the learners and educators.
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  • Date Issued: 2015

Unfulfilled promises: the implementation of the Recognition of Customary Marriages Act in South Africa

  • Authors: Mwambene, Lea , Kruuse, Helen
  • Date: 2015
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/129175 , vital:36227 , DOI:10.1093/lawfam/ebv009
  • Description: The Recognition of Customary Marriages Act 1998 (the Act) regulates all matters in relation to customary marriages in South Africa. The Act was specifically enacted to recognize customary marriages as valid, but was also passed to address gender inequality by regulating various customary marriage aspects, the most important being registration and proprietary consequences. This article reflects on the findings of a qualitative study on the registration and proprietary consequences of customary marriages conducted in two rural sites in the Eastern Cape (the former Ciskei and Transkei) and one urban site in the Western Cape (Khayelitsha). These findings show two important issues. First, that access to resources upon death of a spouse or divorce is often premised on successful registration of the marriage, which seldom occurs. Secondly, that the continued patriarchal nature of customary marriages stands in the way of realizing gender equality, particularly in relation to the proprietary consequences of a marriage. As a result, we make possible recommendations of how the Act’s objectives can be met.
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  • Date Issued: 2015

University students’ drinking motives : relationship with alcohol use

  • Authors: Maphisa, Jabulani Maphisa
  • Date: 2015
  • Subjects: College students -- Alcohol use -- South Africa -- Grahamstown , College students -- South Africa -- Grahamstown -- Conduct of life , College students -- South Africa -- Grahamstown -- Attitudes , Motivation (Psychology) -- South Africa -- Grahamstown , Social integration -- South Africa -- Grahamstown , Adjustment (Psychology) -- South Africa -- Grahamstown , Conformity -- South Africa -- Grahamstown
  • Language: English
  • Type: Thesis , Masters , MA
  • Identifier: vital:3266 , http://hdl.handle.net/10962/d1019760
  • Description: Alcohol use among university students is a worldwide social and clinical reality. Understanding and addressing this phenomena is an imperative recognised by the government of South Africa and its Higher Education institutions, where student drinking has a plethora of negative consequences. This study builds on the work of Young and de Klerk (2012) with Rhodes University students by adding drinking motives to their findings of demographic correlates. The motivational model of alcohol use (Cox & Klinger, 1988) posits that drinking motives are a proximal predictor of alcohol use. The model further delineates four drinking motives (social, enhancement, coping, and conformity) which are hypothesized to lead to phenomenological distinct patterns of alcohol use. An online survey method was utilized to collect data and a representative sample of 501 students participated. Descriptive and inferential statistics were computed to address five research questions: (1) to establishing the current alcohol use trend; (2) to investigate the demographic factors associated with alcohol use; (3) to describe students‘ drinking motives; (4) to explore the correlates of drinking motives; and, finally, the primary aim was (5) to investigate whether students‘ drinking motives predicted alcohol use when controlling for the effects of descriptive drinking norms and demographic variables. The results indicate that 68.5% of participants currently consume alcohol, and 51.0 % of these drinking students consume five or more drinks during a drinking session. 20.7 % of the drinking students used alcohol at the harmful or alcohol dependent levels. Increased alcohol use was associated more with males, undergraduates, early onset drinkers, more disposable income, and students‘ perceptions of their peers‘ drinking. Students endorsed enhancement motives marginally more than social motives, followed by coping and conformity motives. Males, early onset drinkers, black students, and at risk (of alcohol use disorders) students endorsed more motives, especially social and enhancement motives. Of primary concern was the role of drinking motives on alcohol use after controlling for the effects of descriptive drinking norms. The four block hierarchical regression model which was run explained 38% of the variance in alcohol use. Drinking motives, particularly enhancement motives, displayed a statistically significant impact on alcohol use adding 11% to the variance. Additionally, age of alcohol use onset, monthly pocket money, age, and gender predicted alcohol use separately. The results of this study indicate that alcohol use has multi-factorial influences. Of note, the results confirmed the motivational model of alcohol use by indicating that alcohol use is partially motivational and that drinking behaviour is not a unitary phenomenon but instead it represents heterogeneity based on the affective change individuals anticipate to gain by drinking. The high binging rate (51%) among this sample may speak to the greater endorsement of enhancement motives, which have been shown in previous studies to be associated with heavy drinking. Enhancement motives are attempts to attain positive affect which, due to the psychoactive properties of alcohol, require greater consumption and intoxication. Additionally, as a result of the greater quantities of alcohol, individuals who drink for enhancement motives would be more prone to alcohol consequences. The results suggest that a multi-level intervention framework targeting individual students, the university community, and the surrounding community, is indicated. Furthermore, intervention may be tailored-made to address specific drinking motives.
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  • Date Issued: 2015

Unravelling the myths about unplanned pregnancy among female students at University of Fort Hare East London Campus, South Africa

  • Authors: Chukwunyere , Amadi P
  • Date: 2015
  • Subjects: Unwanted pregnancy , Women college students , College students
  • Language: English
  • Type: text
  • Identifier: http://hdl.handle.net/10353/25415 , vital:64237
  • Description: This research study examined: 1. the attitudes and perceptions of female university students towards unplanned pregnancies, their (pregnancies’) associated influences and their social economic consequences on the participants and their family. 2. The level of knowledge, the sources thereof, and the girls’ attitudes and perceptions toward contraception, abortion and their actual use as possible barriers in the prevention of unplanned pregnancies. 3. The possible interventions in curbing the phenomenon of unplanned pregnancies. Data for the study was gathered through in-depth-interviews with ten female undergraduate students at the University of Fort Hare in East London campus, who had the experience of unplanned pregnancy while studying. Selection of participants was done through snowball sampling. A number of factors responsible for the unplanned pregnancy are revealed, including: Inadequate and inconsistent use of contraceptives, ignorance about contraception or rejection of contraceptive use due to religious beliefs. Influential factors regarding unplanned child bearing include: The role of the mother and the boyfriend, traditional and religious beliefs, and the desire for child bearing and motherhood. Although the majority of the girls are knowledgeable about contraception, and their right to abortion, a number of barriers hinder them from putting this knowledge into practical use. Some of the most highlighted consequences of unplanned/unwanted pregnancy are the financial burden on the family and loss of study time. , Thesis (MSoc) -- Faculty of Social Sciences and Humanities, 2015
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  • Date Issued: 2015

Uphando ngokuphononongwa kwabalinganiswa ngokobume bengqondo kwiincwadi ezikhethiweyo zikaSaule u'Vuleka mhlaba no Umthetho kamthetho'

  • Authors: Sokiya, Liliswa
  • Date: 2015
  • Subjects: Saule, N. -- Criticism and interpretation , Xhosa literature -- History and criticism
  • Language: Xhosa
  • Type: Thesis , Masters , MA
  • Identifier: http://hdl.handle.net/10948/8585 , vital:26409
  • Description: Impatho-mbi nabalinganiswa iba ngunobangela wokuphazamiseka kwengqodo zabalinganiswa. Umlinganiswa uthi nokuba uhleli azibone sele enezinye iingcinga, ngcinga ezo ziphazamisa ubomi bakhe. Izinto eziphazamisa umlinganiswa ebalini kukutyholwa ngezinto angazaziyo. Iyashiyana indlela abalinganiswa abachaphazeleka ngayo ngenxa yolu phazamiseko, loo nto ikhokelele ekubeni benze izinto ezingafaniyo.
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  • Date Issued: 2015

Using a classroom library to promote extensive reading in a Grade 8 class in a Fort Beaufort District School, Eastern Cape : an action research case study.

  • Authors: Bushula, Bruce Simphiwe
  • Date: 2015
  • Subjects: Classroom libraries -- South africa -- Eastern Cape -- Case studies , Reading (Secondary) , Literacy -- Study and teaching (Secondary) , Literacy programs
  • Language: English
  • Type: Thesis , Masters , MEd
  • Identifier: vital:2022 , http://hdl.handle.net/10962/d1017333
  • Description: This thesis reports on a collaborative action research case study with Grade 8 learners in a rural high school in Fort Beaufort District, Eastern Cape, South Africa. The goals of the case study were firstly, to understand best practices for promoting extensive reading using a classroom library, and secondly, to use these insights to put an extensive reading programme in place with a view to improving my practice as a language teacher and to gain better understanding of ways of enhancing my Grade 8 learners’ literacy skills. The following qualitative methods were used to collect data: observation, semi-structured interviews, class discussion, questionnaires, journal reflections and document analysis. Analysis of data involved identification of emerging themes and patterns. The findings suggest that the strategies used in the extensive reading intervention improved my learners’ levels of engagement with reading. Putting these strategies into practice, and reflecting critically on how to refine them helped enrich my own professional insight and development in relation to the implementation of extensive reading programmes. Since action research is usually designed in spirals of action, this research serves as a first spiral and a foundation upon which to build second and subsequent spirals (which do not form part of this research). The study highlighted the fact that certain challenges that emerged (for example, shortage of books at the learners’ level, and a lack of parental cooperation) need to be addressed in a second spiral of intervention. The study further suggested that the implementation of effective extensive reading programmes by teachers in the middle and upper phases of secondary schooling requires further investigation.
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  • Date Issued: 2015

Using experience from previous failed implementations to improve future lean implementation strategy

  • Authors: Hiles, Charmelle Amanda
  • Date: 2015
  • Subjects: Lean manufacturing -- Management Production planning
  • Language: English
  • Type: Thesis , Masters , MBA
  • Identifier: http://hdl.handle.net/10948/11047 , vital:26880
  • Description: The main objective of the study was to ascertain the presence of the identified critical success factors for lean sustainability in a chemical manufacturing company in Port Elizabeth. The critical success factors that formed part of the research included leadership involvement and commitment, management involvement and commitment, employee engagement and organisational culture. The methodology used was one of a positivistic approach. A questionnaire was utilized and the responses were analyzed using various statistical methods. Based on the results from the analysis, recommendations and conclusions could be drawn. The inferential results of the study indicated that all the critical success factors identified for this study were present within the organisation. However, there were still a large percentage of respondents that remained neutral across all the questions which could indicate reasons why previous attempts in lean implementation failed. The recommendations provided were based on the findings of the study. An implementation strategy was identified and outlined. This strategy and recommendations will assist in providing a sound platform for a sustainable lean initiative within the organisation.
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  • Date Issued: 2015

Using GIS and remote sensing to map suitable sites for wind farms: a case study of Nkonkobe Municipality, Eastern Cape.

  • Authors: Gwena, Jay
  • Date: 2015
  • Subjects: Geographic information systems http://id.loc.gov/authorities/subjects/sh90001880 , Remote sensing http://id.loc.gov/authorities/subjects/sh85112798 , Renewable energy sources http://id.loc.gov/authorities/subjects/sh85112837
  • Language: English
  • Type: Master's theses , text
  • Identifier: http://hdl.handle.net/10353/19420 , vital:43082
  • Description: Issues relating to energy use, renewable energy introduction and climate change have received a lot of attention from governments throughout the world in the past two decades. Many developing nations like South Africa heavily rely on coal and other non-renewable resources for their production of energy. The processing of the non-renewable resources into secondary energy forms is according to many energy experts a chief contributor to climate change. Climate change is affecting agricultural production in many developing countries that entirely rely on rainfall for their production. The loss in production in South Africa is increasing the level of poverty in low-income earners and unemployed people. Also a lot of households found in rural areas of South Africa have no access to electricity. Electricity in South Africa is generated and distributed by Eskom a state owned company. In April 2008 Eskom failed to meet power demand and started introducing load shedding to maintain and upgrade their power plants. The load shedding stopped for while and was introduced again in 2014 when the power utility faced the challenge of failing to produce power to meet demand again due to problems with their power stations. The ongoing energy provision problems in South Africa can be alleviated by introducing alternative sources like renewable energy. Introduction of renewable energy in poorly developed areas like Nkonkobe Municipality can help households‘ access electricity and reduce load on the national grid. The aim of this study was to locate suitable sites for setting up wind farms in Nkonkobe municipality in South Africa. Wind energy as a resource is abundant in many areas of South Africa and areas to set wind farms for optimum harness of wind power were identified using GIS, remote sensing and multi-criteria decision making techniques. Wind speed, distance from settlements, distance from main roads, distance from national, slope and land use/land cover were chosen as the factors to consider in selecting a suitable site. Data was collected from South Africa Weather Services, University of Fort Hare and online free data sources. Thematic maps for all the factors were developed in ArcGIS and fed into Nkonkobe Municipality database developed for the study. Thematic maps were assigned weights before being overlaid using weighted overlay tool. Weights for the factors were determined using Analytical hierarchy Process‘ pairwise comparison approach. Weighted overlay of the thematic maps produced a map showing suitable areas based on the weight influence of each factor. The output map was compared to results obtained from using Boolean approach and weighted sum method as a way of checking the accuracy of obtained suitable sites. Results showed there are three sites that can be used for setting up wind farms in the study area. , Thesis (MSc) (Applied Remote Sensing and GIS) -- University of Fort Hare, 2015
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  • Date Issued: 2015

Using risk mitigation approaches to define the requirements for software escrow

  • Authors: Rode, Karl
  • Date: 2015
  • Subjects: Escrows , Source code (Computer Science)
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4714 , http://hdl.handle.net/10962/d1017936
  • Description: Two or more parties entering into a contract for service or goods may make use of an escrow of the funds for payment to enable trust in the contract. In such an event the documents or financial instruments, the object(s) in escrow, are held in trust by a trusted third party (escrow provider) until the specified conditions are fulfilled. In the scenario of software escrow, the object of escrow is typically the source code, and the specified release conditions usually address potential scenarios wherein the software provider becomes unable to continue providing services (such as due to bankruptcy or a change in services provided, etc.) The subject of software escrow is not well documented in the academic body of work, with the largest information sources, active commentary and supporting papers provided by commercial software escrow providers, both in South Africa and abroad. This work maps the software escrow topic onto the King III compliance framework in South Africa. This is of value since any users of bespoke developed applications may require extended professional assistance to align with the King III guidelines. The supporting risk assessment model developed in this work will serve as a tool to evaluate and motivate for software escrow agreements. It will also provide an overview of the various escrow agreement types and will transfer the focus to the value proposition that they each hold. Initial research has indicated that current awareness of software escrow in industry is still very low. This was evidenced by the significant number of approached specialists that declined to participate in the survey due to their own admitted inexperience in applying the discipline of software escrow within their companies. Moreover, the participants that contributed to the research indicated that they only required software escrow for medium to highly critical applications. This proved the value of assessing the various risk factors that bespoke software development introduces, as well as the risk mitigation options available, through tools such as escrow, to reduce the actual and residual risk to a manageable level.
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  • Date Issued: 2015

Using the larval parasitoid, Agathis bishopi (Nixon) (Hymenoptera: Braconidae), for early detection of false codling moth, Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae) infested fruit

  • Authors: Zimba, Kennedy Josaya
  • Date: 2015
  • Subjects: Cryptophlebia leucotreta , Citrus -- Diseases and pests -- South Africa , Pests -- Biological control -- South Africa , Cryptophlebia leucotreta -- Detection , Parasitoids -- Hosts , Braconidae
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:5919 , http://hdl.handle.net/10962/d1017186
  • Description: Thaumatotibia leucotreta (Meyrick) (Lepidoptera: Tortricidae) is one of the major citrus pests of economic importance for South Africa’s citrus industry. It is endemic to Africa, and therefore a phytosanitary pest with zero tolerance by most export markets. The cryptic nature of T. leucotreta makes visual inspection an inefficient method for detecting neonate larvae in fruit in the packhouse. Therefore, a more accurate method for sorting infested fruit at the packhouse, particularly for newly infested fruit could ensure market access. A recent study showed that fruit infested by T. leucotreta emit a chemical profile different from that of a healthy fruit. Several studies provide evidence that parasitoids locate their hosts feeding on fruit by exploiting the novel chemical profiles produced due to host herbivory. The aim of this study was to evaluate the potential of using the naturally occurring behaviour of a larval parasitoid Agathis bishopi (Nixon) (Hymenoptera: Braconidae) for detection of T. leucotreta infested fruit, by determining which compound in infested fruit is attractive to parasitoids. Ytube olfactometer and flight-tunnel bioassays with healthy and T. leucotreta infested fruit showed a significantly stronger response of A. bishopi female parasitoids to infested fruit. Among the volatile compounds associated with T. leucotreta infested fruit, D-limonene elicited the strongest attraction to A. bishopi female parasitoids. Attraction of mated A. bishopi female parasitoids to T. leucotreta infested fruit and D-limonene significantly increased after oviposition experience. Behavioural responses of A. bishopi female parasitoids that were associated with T. leucotreta infested fruit were investigated to determine which behaviours are distinct and interpretable. Probing and oviposition behaviours were the most noticeable and were only elicited on infested fruit when parasitoids contacted T. leucotreta frass, indicating that chemical compounds in frass are short-range cues used for final host location. Since production of D-limonene by fruit is elevated due to herbivory by different pests including mechanical injury on fruit, response of A. bishopi female parasitoids to compounds in frass offers a more specific and potentially useful mechanism for development of a detection system for T. leucotreta infested fruit. Chemical analysis of T. leucotreta frass and conditioning A. bishopi parasitoids to respond behaviourally to compounds in frass is proposed.
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  • Date Issued: 2015

Using vehicle activated signs as an integrated measure to improve road safety in South Africa

  • Authors: Swanepoel, Charl
  • Date: 2015
  • Subjects: Traffic signs and signals -- South Africa , Electronic traffic controls
  • Language: English
  • Type: Thesis , Masters , MTech
  • Identifier: http://hdl.handle.net/10948/3745 , vital:20460
  • Description: Road safety is an aspect of major concern on road networks, not only on a local scale in South Africa, but also on a global scale. South Africa is experiencing an unacceptably high rate of fatal road traffic crashes and as a result has one of the highest per capita rate of road fatalities in the world. The Global Plan for the Decade of Action for Road Safety 2011 – 2020 was published in 2011 by the World Health Organisation (WHO) to guide and assist countries with the improvement of road safety. The management of vehicle speeds is one of numerous important interventions identified in the Global Plan. The technical and economic feasibility of using a specific Road safety is an aspect of major concern on road networks, not only on a local scale in South Africa, but also on a global scale. South Africa is experiencing an unacceptably high rate of fatal road traffic crashes and as a result has one of the highest per capita rate of road fatalities in the world. The Global Plan for the Decade of Action for Road Safety 2011 – 2020 was published in 2011 by the World Health Organisation (WHO) to guide and assist countries with the improvement of road safety. The management of vehicle speeds is one of numerous important interventions identified in the Global Plan. The technical and economic feasibility of using a specific technology, namely Vehicle Activated Signs (VAS), to contribute to the overall improvement of road safety on a national level in South Africa were investigated, with particular emphasis on the improvement of road safety through the reduction of fatal road traffic crashes. VAS are part of a range of measures that can be used to curb vehicle speeds, similar to conventional measures like speed cameras and traffic calming devices. VAS technology has seen limited use in South extrapolation of results from SCC’s VAS effectiveness study, and the application of these results to the South African road safety and road user statistics for the one year period March 2011 to March 2012. Key factors relating to speed and general driver obedience were also taken into consideration. It was established that the use of VAS would lead to a moderate reduction in the number of fatal road traffic crashes that occur annually, which in turn holds financial and socio-economic benefits for South Africa. A comparison of selected products available from two South African based electronic road sign manufacturing companies with conventional VAS was also carried out, focussing on product function, use and cost. It has been concluded that it would be technically and economically feasible to introduce VAS on the South African road network to improve the prevailing road safety situation.
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  • Date Issued: 2015

Validity and accuracy of self-reported drug allergies

  • Authors: Grant, Elzaan
  • Date: 2015
  • Subjects: Drug allergy , Medical history taking
  • Language: English
  • Type: Thesis , Masters , MPharm
  • Identifier: http://hdl.handle.net/10948/3295 , vital:20421
  • Description: Purpose: Pharmacists must ensure the safe and effective use of medication, but often have only the documented patient history to guide assessment of therapy. There is a lack of information on the incidence of claimed drug allergies or the validity of these self-reported drug allergies in the South African population. Mislabelling of patients as being allergic to medication often deprives them of important therapeutic drugs and alternative agents may be more dangerous, less effective and more costly (Hung et al., 1994). The aim of the research was therefore to determine the incidence of drug allergies in patients admitted to a private hospital and to assess the validity of these self-reported drug allergies. Methods: A descriptive, non-experimental study design was used. Data was collected using a concurrent, cross-sectional approach and collected from patients admitted to hospital using Medical Chart Reviews and researcher-led, questionnaire based interviews. During the seven month sampling period, 693 patients were identified with one or more self-reported drug allergies. A subset of 99 patients (14.2%) consented to a researcher-led interview. The allergies were assigned to one of three groups based on the history: (i) High probability: signs and symptoms typical of an immunological reaction. (ii) Low probability: signs and symptoms of the reaction were predictable reactions or side effects of the drug. (iii) Unknown status: no information concerning the reaction history was available. Results: A total of 953 allergies were identified in the 693 patients, with a ratio of drug allergy to patient of 1.4:1. The majority of claimed allergies were to penicillin (39.2%), opioid analgesics (17.6%), other antimicrobials, including co-trimoxazole (13.5%), NSAIDs (9.9%) and unspecified “sulphur” allergy (8.7%). Descriptions of the “allergic” reactions were only recorded on 8.9% (62, n=693) of the reviewed charts. Only 56.5% (35, n=62) of the symptoms recorded as “allergy” were indicative of the event being allergic or immunological in nature. In total, 1.3% (9, n=693) of the patients with a self-reported allergy received the allergen while in hospital. In three cases this was the result of a pharmacist overlooking the recorded allergy, and dispensing the allergen to the patient. A total of 118 allergies were identified in the 99 interviewed patients, with a ratio of drug allergy to patient of 1.2:1. Inaccurate allergy history was found in 9.1% (9, n=99) of the interviewed patients. Overall, the majority of self-reported drug allergies (67.8%) had a “high probability” of being a true drug allergy. Allergies that were assigned into the high probability group were: penicillin (74.1%), co-trimoxazole (91.7%), NSAID‟s (55.6%) and 75.0% of opioids. Conclusion: In summary, the validity of self-reported drug allergies need to be determined before excluding medication from a patient‟s treatment options. Detailed descriptions can assist in the evaluation of self-reported allergies which would be advantageous to both prescribers and patients. Pharmacists need to play a bigger role in ensuring accurate documentation of drug allergy history, with detailed descriptions, in order to ensure safe and effective drug use within the hospital environment.
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  • Date Issued: 2015

Variation in breeding systems, floral morphology and nectar properties in three co-occurring Erica species with contrasting pollination syndromes

  • Authors: Lombardi, Giorgio Colombo
  • Date: 2015
  • Subjects: Ericas -- South Africa -- Western Cape , Ericas -- Morphology , Ericas -- Reproduction , Ericas -- Pollination , Pollination by animals , Pollination by insects , Nectar
  • Language: English
  • Type: Thesis , Masters , MSc
  • Identifier: vital:4273 , http://hdl.handle.net/10962/d1018567
  • Description: The genus Erica is the most species rich in the Cape Floristic Kingdom, yet there are limited data on the various flower-pollinator interactions and breeding systems for the majority of these species. Until recently research has focussed on predictive floral traits, including flower shape, length of corolla and corolla opening to identify likely pollinators in this genus. Field observations provide an empirical test of such predictions. This study investigated three species of Erica and compared their pollination and breeding systems and floral biology. Research, including field experiments and pollinator observations was undertaken in the Vogelgat Private Nature Reserve, Maanschynkop Nature Reserve and Boskloof farm in the vicinity of Hermanus in the Western Cape Province of South Africa. Field observations were conducted to determine what flower- visitor interactions occurred, while nectar volumes and sugar concentrations were measured to determine the value of the reward to the different visitors. Selective exclusion and breeding system experiments were carried out to determine whether these Erica species were capable of autonomous self-fertilization or whether they are pollinator dependent for breeding success. The unusual morphology of Erica lanuginosa suggested rodent-pollination. Field observations, including photographs of visits to plants in the field, the presence of pollen in scat sample and selective exclusion and breeding system experiments identified rodents, primarily Acomys subspinosus to be the primary pollinator. Long-proboscid flies of the family Nemestrinidae were found, on the basis of field observations to be responsible for pollination of the endemic Erica aristata. This was supported by with nectar volume and sugar concentration samples which are consistent with other long-proboscid fly-pollinated plant species. Selective exclusion and breeding system experiments undertaken confirmed that Erica aristata required a pollinator to set seed. Observations and breeding trials revealed bird-pollination in Erica sessiliflora. Nectar volume and sugar concentrations in Erica sessiliflora were in line with other sunbird-pollinated plant species, providing the necessary rewards for sunbirds visiting this species. Specialised pollination by single pollinators was found in all three species and results from breeding system experiments show that out-crossing is important. Further research into pollinator-flower interactions in the genus Erica is necessary, not least to understand more fully the conservation importance of specific pollinators.
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  • Date Issued: 2015

Variation in selected solid wood properties of young pinus patula from diverse sites in the Mpumalanga escarpment area in South Africa

  • Authors: Muller, Barry Glen
  • Date: 2015
  • Subjects: Pinus patula -- South Africa -- Mpumalanga , Wood -- South Africa -- Mpumalanga
  • Language: English
  • Type: Thesis , Masters , MTech
  • Identifier: http://hdl.handle.net/10948/5509 , vital:20872
  • Description: The objectives of this study were to study wood property variation in Pinus patula from different physiographic sites, the interrelationship between wood properties and the effects of some forest site factors on wood properties and their within-tree variation. The wood properties considered were density, transverse shrinkage, grain angle and stiffness (modulus of elasticity). Ten trees were taken from each of seventeen sites selected during a previous study of soil ecology and tree growth patterns on the escarpment of Mpumalanga in South Africa. This is a complex physiographic region with several different growth sites within a relatively small geographical area. The key finding of the study was that the effect of radial distance from the pith (i.e. the age of the tree) was highly significant and accounted for most of the variation of the trees sampled. Although the effect of site on the selected wood properties was highly significant, its effect accounted for a relatively small percentage of the total variation in each case. Consequently, solid wood processors must take into account the large variation within a tree when implementing strategies to minimise the downgrade of timber as result of excessive board distortion and/or inferior strength. There were significant correlations between wood density and density slope, radial shrinkage, shrinkage ratio and stiffness and also significant correlations between wood stiffness and density slope and radial shrinkage. Density and grain angle both showed significant correlations with the most important climatic factors. ‘Growth days’ (which is an index reflecting the number of days per year when soil moisture is not a limiting factor for plant growth) was identified as one of the principal growth factors influencing the selected wood properties, because of it’s strong relationships with wood density, density slope, grain angle and stiffness. Regression models were developed to predict wood density and grain angle from growth variables. The results show that those wood properties that correlate with geographic representable site variables can be included in site classification and evaluation systems, to assist in predicting growth in terms of volume yield and wood quality.
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  • Date Issued: 2015

Variation in urease and β-glucosidase activities with soil depth and root density in a ‘Cripp's Pink’/M7 apple orchard under conventional and organic management.

  • Authors: Meyer, André H , Wooldridge, John , Dames, Joanna F
  • Date: 2015
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/444051 , vital:74181 , https://doi.org/10.1080/02571862.2015.1053155
  • Description: The effects of conventional (CON; utilising synthetic fertiliser and herbicide) and organic (ORG; nutrients supplied in compost, weeds controlled with straw mulch) orchard floor management practices on depth-wise variation in urease and β-glucosidase activities in tree-row soils were compared in a Western Cape ‘Cripp's Pink’/M7 apple orchard. Urease and β-glucosidase activities were determined spectrophotometrically in soils from five depth intervals from the walls of trenches excavated across the tree rows after seven years of treatment application. Soil pH, organic carbon, nitrate (NO3 ) and ammonium (NH4 ) nitrogen were also determined, as was root density. Enzyme activities were higher in the ORG than the CON topsoils but did not differ significantly (p = 0.05) at depths >30 cm. The positive effects of the ORG treatments were attributed to the liming effect and carbon and nitrogen contributions of the compost. Urease and β-glucosidase activities correlated strongly. Activities of both enzymes correlated significantly and positively with carbon, NO3− and pH, with urease correlated more strongly than β-glucosidase. Only urease correlated with root density. Organic orchard floor management practices may be more effective than CON practices in promoting microbial enzyme activities in the 0–30 cm soil depth intervals of Western Cape apple orchard soils.
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  • Date Issued: 2015

VC Sizwe Mabizela addressing the students 21 Oct 2015

  • Authors: Thomas, Cornelius
  • Date: 2015
  • Type: Image
  • Identifier: vital:8061 , http://hdl.handle.net/10962/d1020560
  • Description: On Wednesday, 21 October 2015, Rhodes University closed in solidarity with the higher education sector as students and staff embarked on nationwide protest action against the shortage of funding in the South African higher education sector. #FeesMustFall is a national student led protest movement that began in mid-October 2015 in response to proposed increases in fees at South African universities. These images depict the peaceful march and illustrate the extent of solidarity among staff, students and community members who joined in support of the protest.
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  • Date Issued: 2015

Venerating death

  • Authors: Jones, Ward E
  • Date: 2015
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/275749 , vital:55076 , xlink:href="https://doi.org/10.1080/05568641.2015.1014540"
  • Description: In this paper, I am concerned with elucidating and expanding our attitudes toward our own death. As it is, our common attitudes toward our death are the following: we fear our premature death, and we dread our inevitable death. These attitudes are rational, but I want to argue that our attitudes toward death should be more complicated than this. A condition upon our value, our preciousness, as creatures is that we are vulnerable, and our vulnerability is, at bottom, a vulnerability to death. A corollary of this is that we could not be loved, either by ourselves or by others, for one cannot love—be concerned for—a being invulnerable to death. As a consequence, death plays a deep and abiding role in our value systems. Our susceptibility to premature and inevitable death is a condition upon our being valuable creatures and, in turn, it is a condition upon our being loved. Given the high value that we place on being valuable creatures who deserve love, we should equally place a high value on the constitutive conditions for being precious and loved. If, as I suggest, one of these conditions is that we will die, we should see our deaths not simply as something to fear or dread, but as something of great importance in our lives. Our deaths should be treated with awe, respect, and even praise.
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  • Date Issued: 2015
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