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⁴⁰ Ar/³⁹Ar and (U-Th)/He dating attempts on the fossil-bearing cave deposits of the Malapa and Sterkfontein hominin sites of the Cradle of Humankind, South Africa

  • Authors: Makhubela, Tebogo Vincent
  • Date: 2015-04-22
  • Subjects: Argon-argon dating - South Africa - Cradle of Humankind World Heritage Site , Geological time , Fossil hominids - South Africa - Cradle of Humankind World Heritage Site
  • Type: Thesis
  • Identifier: uj:13556 , http://hdl.handle.net/10210/13697
  • Description: M.Sc. (Geology) , The Cradle of Humankind is a 47 000 hectare demarcated area with over three dozen fossil-bearing cave sites well known for the preservation of fossil evidence of early hominin taxa such as Australopithecus Africanus, Australopithecus Sediba, Paranthropus Robustus and Early Homo. As a result, a database of precise and accurate chronological data for fossil-bearing cave deposits of the Cradle of Humankind (similar to that for East African fossil sites) is very important, but developing one has proven extremely challenging. The main challenge is that the fossil-bearing deposits at the cradle are mainly complex breccias with a chaotic, localized stratigraphy and no association to any volcanic ash beds, unlike the East African deposits which are lacustrine and fluviatile deposits interbedded with volcanic ash layers. However, substantial success has been obtained recently through the combination of U-Pb dating of CaCO₃ speleothems and palaeomagnetic dating (magnetostratigraphy) after many attempts and unconvincing results from techniques such as biostratigraphic correlations, electron spin resonance on teeth and cosmogenic burial dating of the sediments. The problem with U-Pb dating of CaCO₃ speleothems is that this requires samples that are extremely clean (i.e. detrital-free) and have an appreciable U content (close to 1 ppm), and such material is at many sites not available...
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“Wondrous texture” : Henry James's brocades

  • Authors: Scherzinger, Karen
  • Date: 2015-06-24
  • Subjects: Brocade - History - 19th century , James, Henry, 1843-1916
  • Type: Article
  • Identifier: uj:5568 , ISSN 17535382 , http://hdl.handle.net/10210/14191
  • Description: This essay begins with a brief history of the cultural status of brocade in the nineteenth century and then offers a critical account of the ways in which brocade features in Henry James’s work. James’s association of brocade with the aristocracy and the metropole, and his treatment of it as both an embodied object and a metaphor, reveals the textile to be a significant index of a number of his abiding concerns. The essay concludes with a consideration of how brocade both supports and contradicts poststructuralist positions about the referentiality of things in James’s writing, as well as of how brocade provides a fitting analogy for his later style.
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“What would they do if you greeted?” The potentiality of greetings in the new South Africa

“We grew as we grew” : visual methods, social change and collective learning over time

  • Authors: Walsh, Shannon
  • Date: 2012
  • Subjects: HIV prevention , Longitudinal research , Memory , Educational research , Social change
  • Type: Article
  • Identifier: uj:6003 , ISSN 0256-0100 , http://hdl.handle.net/10210/8823
  • Description: Educational research using visual methods has the power to transform the society in which we live and the communities in which we work. We must not naïvely imagine that having the desire to make change in people’s lives will mean that it will happen, as sometimes there may be surprising, unintended negative repercussions as well. Other constraints, such as structural violence and institutional racism, can also intersect with the possibility of making tangible change through educational research using visual methods. Qualitative assessment with a longitudinal approach is one approach that can reveal both the impact, and the limitations, of educational research on social change. I discuss these issues through grounded examples from an HIV educational project that used visual methodologies with a group of youths in Cape Town, South Africa over a number of years. Almost ten years later we interviewed three of the former participants about what impact the work has had on their lives. Each has travelled a different journey and been faced with different constraints that have implications for the effectiveness of such work. Where are they now, and as adults, what do they have to say about the visual methodologies, memory, and social change?
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“I’m not Afropolitan — I’m of the continent” : a conversation with Yewande Omotoso

  • Authors: Fasselt, Rebecca
  • Date: 2014
  • Subjects: Afropolitanism , Diaspora , Omotoso, Yewanda. Bom Boy
  • Type: Article
  • Identifier: uj:5593 , ISSN 00219894 , http://hdl.handle.net/10210/14294
  • Description: Since the end of apartheid, South Africa has become a new home for many immigrants and refugees from all over the African continent. Engaging with this “new season of migration to the South”, South African writers are increasingly including migrants from elsewhere on the continent into their casts of protagonists. Moreover, in autobiographies and works of fiction, African migrants themselves have begun to reflect on their experiences of living in South Africa. In this interview, Yewande Omotoso discusses her emigration from Nigeria to South Africa in the early 1990s. She argues that her family’s choice to remain on the African continent, rather than emigrating to the UK or the US, as so many contemporary Nigerian writers did, has given her a distinct diasporic experience. As the interview unfolds, she emphasizes that the notion of Afropolitanism does not capture this experience. She also discusses recent developments in contemporary South African publishing and literature, stressing that the country’s literary scene, despite its shortcomings, is vibrant, young, and full of creative energy. Omotoso’s comments on her debut novel Bom Boy reveal that she is a writer deeply concerned with questions of migration, displacement, and loneliness.
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“Global since Gold” the globalisation of conglomerates : explaining the experience from South Africa, 1990-2009

  • Authors: Verhoef, Grietjie
  • Date: 2011
  • Subjects: Outward foreign direct investment , Sovereign wealth funds , International enterprises
  • Type: Article
  • Identifier: uj:5840 , http://hdl.handle.net/10210/7870
  • Description: The internationalisation of enterprises is one of the essential ways to strengthen the competitiveness of firms from developing countries (UNCTAD, 2005c: 3). Strong growth in outward foreign direct investment (OFDI) from developing countries has become the distinguishing feature of the twenty-first century. This OFDI flows from state-owned enterprises, sovereign wealth funds (SWF) as well as private enterprises operating as multinational companies from a home base or as free-standing companies. Multinational corporations have commenced activities since the 1960s by moving operations to resource-rich, low-cost labour and capital markets (Wilkins, 1970; 1974; 1988; Jones, 1994; 2005). The first wave of OFDI during the 1960s and 1970s was motivated by efficiency and market-seeking factors. This wave was dominated by firms from Asia and Latin America. A second wave of OFDI followed in the 1980s, led by strategic asset seeking enterprises from Hong Kong, Taiwan, Singapore and South Korea (Dunning et al., 1996; UNCTAD, 2005b: 3s). Since the 1990s China, Brazil, India, Russia (the so-called BRIC countries) Malaysia, Turkey and South Africa are among the countries expected to add significantly to OFDI growth (UNCTAD, 2005c: 4). The flow of investment funds from developed countries was expected, but the reverse trend displayed the emerging capacities in countries and firms outside the core of the international economy, which challenged the dominance of developed countries and companies from developed countries. These developments have prompted several questions: how do developing country firms succeed in entering global markets? Do these firms improve their competitiveness through OFDI? This paper investigates this phenomenon from the experience of South Africa. The emergence of EMNC (Emerging Market Multinational Corporations) prompted extensive analysis and debates about the nature of and motives for EMNCs, but has also led to more in-depth analysis of specific country characteristics and firm-specific reasons for OFDI.
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“Beauty is Skin Deep” (University of Johannesburg Women’s Day event)

  • Authors: UJ Library & Information Centre
  • Date: 2013-09-17
  • Subjects: Women's Day, 07 August 2013 , Mamphela Ramphele, Dr. , Mia, Reza, Dr. , Mia, Ridwan, Dr.
  • Type: Recording, oral
  • Identifier: http://ujcontent.uj.ac.za8080/10210/363771 , uj:1638 , http://hdl.handle.net/10210/8614
  • Description: Dr Ramphele speaks at UJ Women's Day, calls for end to gender-based violence The University of Johannesburg (UJ) yesterday, Wednesday 7 August 2013, was joined by a panel of esteemed medical experts and female icons at the Country Club Johannesburg for the annual Women’s Day celebratory event. This year the event was hosted by the UJ Library under the guidance of Executive Director: Library and Information Services Dr Rookaya Bawa, and featured a keynote address by esteemed medical doctor, academic, former political activist and co-founder of the Black Consciousness Movement, and now the leader of the newly-formed Agang, Dr Mamphela Ramphele. The conversation, titled “Beauty is Skin Deep”, included panelists Dr Reza Mia, Aesthetic Doctor and an expert on Botox, Dermal Fillers and Chemical Peels; Dr Ridwan Mia, well-known Plastic & Reconstructive Surgeon responsible for the skin transplant performed on three-year-old Isabella "Pippie" Kruger; Dr Carol Benn, a special surgeon and head of the Helen Joseph Breast Unit and the Netcare Breast Care Centre of Excellence in Johannesburg; Professor Harry Seftel, well-known healthcare practitioner, author and radio personality, as well as former Miss South Africa and UJ alumnus, Bokang Montjane. The panel discussion was facilitated by South African radio and television personality and businesswoman, Michelle Constant.​ Videos: Dr Mamphela Ramphele – http://youtu.be/6MosfPJeDdM Dr Reza Mia – http://youtu.be/HBelz_Hn9VI Dr Ridwan Mia – http://youtu.be/4k2rE9AHm9Y
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“An art which is honest enough to despair and yet go on” : the limitations and potential of narrative in three contemporary Irish novels

  • Authors: McCarthy, Karen Anne
  • Date: 2013-06-18
  • Subjects: English fiction - Irish authors - History and criticism , Barry, Sebastian. Secret scripture , Enright, Anne. Gathering , Banville, John. Sea
  • Type: Thesis
  • Identifier: uj:7591 , http://hdl.handle.net/10210/8457
  • Description: M.A. (English) , This dissertation hinges on the exploration of three contemporary Irish novels, namely The Secret Scripture by Sebastian Barry, The Gathering by Anne Enright, and The Sea by John Banville. What the three works have in common, besides their nationality, is a preoccupation with what exceeds their grasp: that is, their inspiration is also their limitation. All three set themselves the task of capturing and representing a past. The first two position themselves as rehabilitators of portions of Ireland’s history that have been occluded from official versions thereof. (Banville’s novel attempts to skirt as many limitations as possible, including a national one, in order to grapple, as unhindered as possible, with what narrative can achieve). Fictional rehabilitations of what occurred in a phenomenal reality are inevitably fraught because of their form’s limited grasp. However, this study seeks to trace each work’s fitful engagement with what it cannot encapsulate in order to ascertain the capabilities of narrative, in spite of its inherent limitations. I employ a broadly post-structuralist theoretical framework in order to engage with novels that incorporate into their content an awareness of the parameters within which they are obliged to function. Ultimately, I draw conclusions (which are necessarily limited themselves) as to the gesture each novel attempts to make beyond its bounds.
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“A comparison of body image in two novels by Andre Chedid and two novels by Amin Maalouf”

‘n Werksmotiveringsprofiel van die Eskom werknemer wat aan gewelddadige insidente blootgestel is.

  • Authors: Burger, Marilize
  • Date: 2012-08-20
  • Subjects: Eskom (Firm) -- Research , Employee motivation -- Research -- South Africa -- Gauteng , Violence in the workplace -- Research -- South Africa -- Gauteng , Industrial relations -- Research -- South Africa -- Gauteng , Quality of work life -- Research -- South Africa -- Gauteng
  • Type: Thesis
  • Identifier: uj:2718 , http://hdl.handle.net/10210/6159
  • Description: M.A. , Literature studies have shown that the organization, as well as the individual in the organization is directly affected by violence. The reasons and characteristics of violence have an emotional impact on the employee, and requires of him to work through the impact of incidents in his own time. The result of this process is delayed psychological growth, less creativity which eventually has an impact on productivity. Workmotivation is the force behind reaching goals individually as well as for the organization. External factors which includes violence, have an influence on the employee's ability to feel satisfied in his work situation. The goal of this research study is to determine if Eskom employees that were exposed to incidents of violence have a workmotivation profile that can be identified. A sample was selected with available statistics in Eskom, as well as the snowball method. The sample included 220 respondents. The respondents completed a unstuctured questionnaire, where they had to identify incidents in their work situation that made them feel good / happy, and incidents that made them feel bad / unhappy. The questionnaire was developed by Frederick Herzberg (1968) as part of his motivation hygiene theory where factors of worksatisfaction and rkdissatisfaction were identified. The results were computerized, and quantified by means of descriptive statistics. A workmotivation profile was constructed from the data. The study confirmed that a workmotivation profile of employees that have been subjected to incidents of violence can be identified. Determinants of worksatisfaction and work dissatisfaction were identified as responsibility, supervision, content of work, recognition, promotion, circumstances at work, personal circumstances and violence. On this profile violence received the highest percentage as a determinant of workdissatisfaction.
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‘n Psigo-opvoedkundige model as verwysingsraamwerk vir die fasilitering van konstruktiewe hantering van aggressie by adolessente seuns wat serebraal gestremd is

  • Authors: Wallis, Esther Petronella
  • Date: 2012-09-03
  • Subjects: Aggressiveness in adolescence , Special education , Cerebral palsied children - Psychology , Cerebral palsied children - Mental health , Cerebral palsied children - Education
  • Type: Thesis
  • Identifier: uj:3438 , http://hdl.handle.net/10210/6833
  • Description: Ph.D. , Aggression during adolescence has a long term effect on the mental health of adolescents. This is a great reason for concern. Although society is intensely aware of the incidences of aggression within South African schools, little research is available regarding this issue. Learners with special educational needs, and specifically learners with cerebral palsy, have been even more neglected in this regard. This study evolves from the field work of the researcher’s M.Ed. dissertation in which the experience of aggression in adolescent boys with cerebral palsy was explored and described. The aim of this study is to develop, describe, implement and evaluate a psycho-educational model as a frame of reference for the facilitation of constructive management of aggression in adolescent boys that live with cerebral palsy. A theory generating research design was used to fulfil this purpose. The development of this model consisted of four steps. Step one consisted of the concept analysis. Facilitation, constructive and management were identified as the central concepts. As part of the concept analysis these concepts were defined and essential and related criteria were discussed. All the concepts and criteria were then summarised in a comprehensive definition. A model case was constructed before the concepts were classified. During the process of classification a heightened self-awareness was identified as the terminus of the process. During step two relationship statements were drawn between the different concepts. These relationship statements as a whole provide substance and structure to the theory. In step three the psycho-educational model as a frame of reference for the facilitation of constructive management of aggression in adolescent boys with cerebral palsy was described. The structure of the model was described in terms of its purpose, assumptions and the context of the model.
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‘n Psigo-opvoedkundige benadering tot die belewing van aggressie deur sekondêre leerlinge in ‘n hokkiespan

  • Authors: Mynhardt, Marizaan
  • Date: 2014-03-03
  • Subjects: Field hockey , Violence in sports , Aggressiveness in adolescence , Adolescent psychology
  • Type: Thesis
  • Identifier: uj:4218 , http://hdl.handle.net/10210/9576
  • Description: M.Ed. (Educational Psychology) , Violence and aggression is a worldwide phenomenon in the sports industry, especially in team sports like hockey. Scant research has been done on the topic, namely how players of a team sport like hockey, experience aggression. This research aims to explore and describe secondary school learners' experiences of aggression in a sport like hockey. On the basis of the results, guidelines and recommendations were made to facilitate them in dealing with the aggression in the right ways. A qualitative, exploratory, descriptive and contextual research design was used. Data was collected by means of semi-structured interviews, observations and field notes. Tesch's (1990) method for data analysis was used and a consensus discussion held with an independent coder. The uniqueness of this study is the exploration and description of secondary school students' experiences of aggression in a hockey team. The results clearly show that aggression is experienced on a regular basis during training or playing a game. The contributory factors include that aggression in hockey is experienced as a positive or negative incentive to achieve certain goals in the game, the coach's handling of spectators’ influence, and characteristics that contribute to hockey being a sport for discharging stress. The consequences of the aggression to players are emotional, psychological and physical in nature. It takes the form of fear, anger, frustration, powerlessness, helplessness and hopelessness. Further consequences are players’ absence from practices and games, the development of an I-do-not-care attitude and injuries. Guidelines for the managing of this phenomenon and recommendations for future research are described.
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‘n Ondersoek na die rol, taak en benutting van die sekretaresse as hulpbron vir die bestuurder in Technikon SA

  • Authors: Groenewald, Darelle
  • Date: 2012-09-11
  • Subjects: Technikon SA -- Management , Secretaries
  • Type: Thesis
  • Identifier: http://ujcontent.uj.ac.za8080/10210/369535 , uj:10014 , http://hdl.handle.net/10210/7405
  • Description: M.Comm. , This dissertation is an investigation into the changing role, task and utility of the secretary as a resource for the manager in Technikon SA(TSA). In today's office, a secretary can no longer offer just technical skills and personal attributes alone. The secretary must be involved as an energetic and vital member of the group. The secretary must appreciate the possibilities of making an increased contribution to the success of the manager by managing the time available to the secretary more effectively. The secretary has to understand the factors which operate in inter-personal work relations. The secretary must be a skilled communicator and organiser. The secretary needs a talent for detailed administration. The secretary often has a controlling and planning function. Secretaries have a significant role to play in maintaining good relations with all within the organisation, and in creating a favourable image to those outside. A secretary should be able to lubricate the wheels of the manager's work and exercise intelligent anticipation by thinking for and with the manager. The first part of this study exists of a literature overview of the secretary in die business world. Special attention is given to the role of the secretary and the need for a secretary; the changing office environment; the changing role of the secretary; the impact of technology and the changing role of the secretary and the secretary's role in the upcoming virtual office. The changing career path of the secretary is also addressed. The literature overview ends with an overview of the utilisation of the secretary and the establishment of an optimal work relationship between secretary and manager and the training and development of the secretary. The last part of the study exists of the results of a questionnaire compiled and distributed to all the secretaries in TSA and interviews with some managers in TSA. The secretary's in TSA perform basic secretarial functions. The nature of the secretary's work is determined by the specific department where the secretary is working. TSA secretary's uses the most up to date technology in the execution of their work. Secretaries have limited authority and responsibility regarding their work but they can almost always influence there manager's decisions regarding office related issues. There is no real career path for the secretary in TSA, which is a big frustration for the secretaries. Because there is a not a definite career path and no distinction between for example a junior secretary, secretary, senior secretary etc, some secretaries tend to be over and others under utilised. The nature of the secretary's work can determine that a secretary is more involved with aspects such as project management, budgeting and scheduling. These secretaries do not get the recognition they deserve and is still on the same level as all the other secretaries in TSA. The secretaries in TSA is equipped with the write training, development and experience to fulfil work with more authority and responsibility. The role of the secretary in TSA will definitely change in future. Both managers and secretaries see the role of the secretary to be changed to that of a personal assistant with the necessary authority and responsibility to handle lower level management work. The secretary will have more decision power in the execution of the Technikon's policy and procedures an better utilised.
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‘n Kritiese ondersoek na die bydrae van Afrikaner sakelui in die vestiging van 'n nuwe politieke bestel: 1985-1992

  • Authors: Hoogenraad-Vermaak, Salomon Cornelius Johannes
  • Date: 2011-12-12
  • Subjects: Afrikaner businesspeople , South Africa - Politics and government
  • Type: Thesis
  • Identifier: uj:1894 , http://hdl.handle.net/10210/4248
  • Description: D.Litt. et Phil. , The international and national historical realities triggered the fragmented white South African business community to unite. These realities also influenced the National Party (NP) government to consider the views of business people with regards to the impact of apartheid politics on the South African economy. South African business people, and especially the Afrikaner business people, exploited the access that they had with Afrikaner political decision makers by influencing them through business organisations such as, the Urban Foundation. The united South African business people took on a leadership position as a result of their increased influence on the political decision-makers. As the leadership group with an inclination towards a non racial democracy, the business community soon found themselves at loggerheads with the NP government. The enlightened Afrikaner business persons refrained from criticising government openly, and supported government’s reform strategies in order to keep debate on reforms alive. The Afrikaner business community shed their ‘passive resistance’ and legitimisation role after the Rubicon speech in August 1985. From thereon, they openly played a role of bridge building by reaching out to anti-apartheid movements and to identify common areas of interest within the society. Towards 1987 enlightened Afrikaner business people were active in the broader South African business community and they were able to mobilize the Consultative Business Movement (CBM) to participate in the dismantling of apartheid. The vision of business was to establish a free market system through broad base consultation. The business community actively supported the democratisation of South African businesses, the redistribution of wealth, the active participation of blacks in a free market economy, as well as the advancement of growth in black communities. The Enlightened Afrikaner business people adopted a social involvement strategy that piloted Black Economic Empowerment transactions, such as Sanlam’s initiative to broaden black equity share ownership. Broad based consultation also cultivated a practical approach to the economy and established a framework for debate that incorporated socialist and capitalist ideas. This compromise strategy was aimed to counter non-viable socialist options regarding redistribution of wealth and the opening up of the economy to previously disadvantaged groups. After 1990, when the NP government accepted that the political landscape must change, the business community embraced a change role, a bridge building role, a facilitator role and a catalyst role to usher in a New South Africa with a bigger middle class and acceptable free market principles as government policy. Accordingly, the enlightened Afrikaner business people actively participated in the negotiation for a political future of South Africa. However, they always remained politically neutral during the actual political negotiation process.
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‘n Internasionale perspektief op insolvensie-ondervragings : is daar tekortkominge in die Suid-Afrikaanse reg wat gevul moet word?

  • Authors: Du Plessis, Anke
  • Date: 2012-08-01
  • Subjects: Insolvency law , Questioning , Bankruptcy , Corporation law
  • Type: Thesis
  • Identifier: uj:8907 , http://hdl.handle.net/10210/5379
  • Description: LL.M. , The main objective of the South African interrogation procedures during corporate insolvency is to trace and recover all corporate assets. The focus of such procedures is therefore on gathering information rather than investigating any probable causes of the insolvency and failure of the company, as English legislation prescribes. At present in South Africa no reasons have to be supplied to creditors, contributors or the public to explain the failure of companies. This situation contributes to the hesitant and sceptical attitude of the public towards companies and their reluctance to invest in companies. This aspect of our insolvency law can also have a negative impact on the level of foreign investment. The question therefore arises on how the insolvency industry should deal with the various challenges that such a situation presents, which entails at the same time challenging the general effectiveness of the South African insolvency system in its entirety.
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‘n Groepwerkprogram vir die ontwtkkeling van vaardighede by jong lede van die Suid-Afrikaanse Polisiediens

  • Authors: Van Wyk, Leandra
  • Date: 2012-08-16
  • Subjects: Police administration -- South Africa , Police -- South Africa , Organizational behavior
  • Type: Thesis
  • Identifier: uj:9496 , http://hdl.handle.net/10210/5926
  • Description: M.A. , Policy is considered one of the most stressfull occupations, which often results in psychiatric disorders, divorces, misuse of alcohol and suicide. The researcher has been motivated by the possible changes that a social group work programme can bring about in the general functioning of members of the South- African Police. GOAL OF THE STUDY The description of the experience of the participants of a group work programme with emphasis on scientific development of group work within the South-African Police Service. OBJECTIVES OF THE STUDY 3.1. The discription from the literature as to the nature and influence that a police official's working conditions affect him as a person. 3.2. The discription from the literature as to the nature and the process of social group work as well as the factors that need to be considered within the social work group. 3.3. Discription of participants experience with the implimentation of the group work programme. 3.4. The recommendations to further develop programme contents scientifically. METHOD OF STUDY For the purpose of this study the descriptive method of research was used. Qualitative methods of data gathering were used. METHODS OF DATA GATHERING A literature study in respect of the police official and the influence of his working conditions on himself as well as that of the social work group was conducted. Questionnaires were completed after completion of each group session and after completion of the programme by members of the target group. ACHIEVEMENT OF GOALS Above mentioned goals were conclusively achieved. These conclusions can be summarised as follows: The police official is as a result of the nature of his work exposed to traumatic happenings that is beyond the norm that is normally experienced. This tension as well as the tension of which the level is unknown , eg. salaries, disparity, etc. can result in shortcomings in role functioning. Through scientific handling of the group process and relations in a group the social worker can develop possibilities for group members to grow, change and develop better social functioning. Exposed from group session description and programme description it is evident that the skills of members for example their selfesteem, commumication skills, conflict handling, budgeting skills and handling of stres, shown great improvement. 7. RECOMMENDATIONS Recommendations were specifically made in terms of further use of the group work programme in the SAPD. All members of the South-African Police Service can be exposed to the groupwork program. Group sessions can be programmed for junior members of the South-African Police Service at college level for preperation in advance. The impact made through social group work to members are to such extend that social workers in the SAPS can make more use of this social work method in enhancing general functioning of members.
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‘n Bestuursmodel vir potensiaalontwikkeling en toerustig van lidmate van die AGS

  • Authors: Botha, Frederick Pieter Jacobus
  • Date: 2012-08-20
  • Subjects: Apostolic Faith Mission of South Africa , Spiritual direction , Church membership
  • Type: Thesis
  • Identifier: uj:2826 , http://hdl.handle.net/10210/6262
  • Description: M.A. , The objective with this study was to develop a management model for assemblies in the Apostolic Faith Mission of South Africa (AFM). This model is focussed on the development of positive potential and the equipping of assembly members. A number of assemblies instituted a cell-based structure whilst others are in a process of transformation towards a cell-based assembly structure. The management possibilities of such a structure was therefore considered. An analytical and critical approach, based on the social sciences, was taken to develop a better understanding of people's latent potential. The equipping task of the church was also analysed. With the aforementioned as departing point, consideration was given as to what type of management structure would be the most suitable to develop potential and to equip assembly members. The study indicates the following: Every person has latent positive potential that should be developed. The church leadership is responsible to God for the development and equipping of assembly members. A high standard of management effectiveness could be reached through a Body-of-Christ assembly approach with cell groups as a supporting structure. A purpose-driven management approach should be adopted. The best management model is therefore achieved through a combination of a Body-of-Christ assembly model based on a purposedriven management approach. This thesis is a contribution aimed to assist the leadership in assembly management and structuring. It is hoped that this will result in the development of latent potential, and the equipping of assembly members to support them in their Godly purpose and service.
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λd,1-Minimal trees and full colorability of some classes of graphs

β-cyclodextrin dendritic-polymers and nanostructured materials for water treatment

  • Authors: Malinga, Soraya Phumzile
  • Date: 2013-07-24
  • Subjects: Nanostructured materials , Cyclodextrins , Water purification - Membrane filtration , Dendrimers
  • Type: Thesis
  • Identifier: uj:7670 , http://hdl.handle.net/10210/8538
  • Description: D.Phil. (Chemistry) , The application of dendritic-based materials has attracted great interest. For the first time this research has investigated the feasibility of poly (propyleneimine) (PPI) dendrimers and hyperbranched polyethyleneimine (HPEI) in combination with beta-cyclodextrin (β-CD) embedded in polysulfone (PSf) membrane for water treatment. The advantage of embedding these conjugates (β-CD-PPI and β-CD-HPEI) in PSf membranes is the presence of numerous nanocavities which can act as water channels allowing easy water passage through the membrane improving water permeability. Secondly, the presence of functional groups such as –OH and –NH greatly improves hydrophilicity of membranes. Commercial polysulfone (PSf) ultrafiltration membranes were crosslinked with β-cyclodextrin-poly (propyleneimine) (β-CD-PPI) and β-cyclodextrin-hyperbranched polyethyleneimine (β-CD-HPEI) using trimesoyl chloride (TMC) by interfacial polymerisation. These membranes were used in the rejection of Aldrich humic acid (molecular weight: 4.1 kDa) from synthetic water samples prepared in the laboratory. Moreover, β-cyclodextrin-poly (propyleneimine) (β-CD-PPI) was used as a host for the preparation of Fe/Ni nanoparticles. The new membranes were synthesised by crosslinking β-CD-PPI with trimesoyl chloride and subsequently loading Fe/Ni nanoparticles and this was supported on a commercial polysulphone (PSf) layer for the degradation of 2,4,6-trichlorophenol (2,4,6-TCP). The membrane surfaces were characterised using Fourier transform infrared/attenuated total reflectance (FT-IR/ATR) spectroscopy , scanning electron microscopy (SEM), atomic force microscopy (AFM), high resolution transmission electron microscopy (HR-TEM), water-contact angle, and water-intake capacity...
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{1-[1-(3-Carboxypropanamido)ethyl]- 1',2-bis(diphenylphosphino)ferrocenek²P,P'}dichloridoplatinum(II) dichloromethane 1.25-solvate

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