Os minerais são de extrema importância no metabolismo geral e no desempenho produtivo e reprodutivo dos bovinos. Atualmente, no Brasil, existem poucos estudos sobre o diagnóstico de deficiências minerais em bovinos, através de análise de macroelementos e elementos traço em fluidos biológicos. A maior parte das informações disponíveis limitam-se ao diagnóstico clínico de deficiências isoladas e à análise de elementos nas pastagens e no solo, que podem sugerir deficiências sub clínicas de alguns minerais, mas apresentam várias limitações e interferências. O objetivo deste trabalho foi desenvolver um método de análise simples, com introdução direta da amostra, utilizando a técnica de q-ICP-MS e DRC-ICP-MS, para determinação de Ca, Cu, Fe, Mg, Zn, I, Mo, As, Se, Ni, Co, Ba, Cs, Mn e Pb em sêmen bovino. Para realização das análises, foi utilizada calibração em meio aquoso e as amostras foram diluídas na proporção 1:50 em solução contendo 0,01% v/v Triton® X-100 e 0,5% v/v de ácido nítrico. Também foram avaliadas a calibração por ajuste de matriz e a análise das amostras após digestão por microondas, para confirmação dos resultados obtidos por introdução direta e calibração em meio aquoso. O DRC foi essencial para determinação de níquel. O gás de reação utilizado foi H2 e os parâmetros RPq e vazão do gás foram estudados para otimização do método. Os limites de detecção para determinação de 44Ca, 63Cu, 57Fe, 24Mg, 64Zn, 127I, 98Mo, 75As, 82Se, 59Co, 138Ba, 133Cs, 55Mn e 208Pb foram: 0,262; 0,003; 0,168; 0,004; 0,004; 0,026; 0,007; 0,007; 0,033; 0,002; 0,005; 0,002; 0,003; 0,002 µg L-1 respectivamente, e para determinação de 60Ni por DRC-ICP-MS o LD foi 0,020 µgL-1. O método desenvolvido foi aplicado para determinação de 15 elementos em amostras de sêmen de bovinos de diferentes raças usadas em programas de reprodução e inseminação artificial. / The minerals are of extreme importance in the general metabolism and in the productive and reproductive performance of the bovines. Nowadays, in Brazil, few studies exist on the diagnosis of mineral deficiencies in bovine, through macroelementos analysis and trace elements in biological fluids. Most of the available information is limited to the clinical diagnosis of isolated deficiencies and the analysis of elements in the pastures and in the soil, that can suggest sub clinical deficiencies of some minerals, but present several limitations and interferences. The objective of this work was to develop a method of simple analysis, with direct introduction of the sample, using the technique of q-ICP-MS and DRC-ICP-MS, for determination of Ca, Cu, Fe, Mg, Zn, I, Mo, As, Se, Ni, Co, Ba, Cs, Mn and Pb in bovine semen. Aqueous medium calibration was used in the analysis and the samples were diluted in the proportion 1:50 in solution containing 0,01% v/v Triton® X-100 and 0,5% v/v of nitric acid. They were also evaluated the matrix matching and the analysis of samples after digestion for microwave, for confirmation of the results obtained by direct introduction and calibration in aqueous medium. DRC went essential for nickel determination. The reaction gas used it was H2 and the parameters RPq and gas flow rate were studied for optimization of the method. The detection limits for determination of 44Ca, 63Cu, 57Fe, 24Mg, 64Zn, 127I, 98Mo, 75As, 82Se, 59Co, 138Ba, 133Cs, 55Mn and 208Pb were: 0,262; 0,003; 0,168; 0,004; 0,004; 0,026; 0,007; 0,007; 0,033; 0,002; 0,005; 0,002; 0,003; 0,002 µg L-1 respectively, and for determination of 60Ni for DRC-ICP-MS the LOD was 0,020 µgL-1. The developed method was applied for determination of 15 elements in bovine semen samples of different breed used in reproduction programs and artificial insemination.

No abstract available. / Dissertation (LLM)--University of Pretoria, 2013. / gm2014 / Centre for Human Rights / unrestricted

Masters in Public Administration - MPA / This study investigates the challenges facing the management of public enterprises in the Democratic of Congo. The study is based on the hypothesis that poor performance by state-owned enterprises in the Democratic Republic of the Congo has been influenced by inadequate management which has led to the dissatisfaction of citizens. Due to this problem increasing attention is being paid by the DRC Government to encouraging private sector involvement in services such as water and electricity. This study investigates the arguments for and against privatization, especially in the water and electricity sectors. In pursuing this debate the study explores the following main research question: To what extent will the DRC Reform Law aimed at transforming the commercialisation of public enterprises enhance the effectiveness of basic services such as water and electricity services in the DRC? A case study of the city of Bukavu in the eastern DRC is used to explore this question. / South Africa

The economic dimension of conflicts has enjoyed increasing attention in research dealing with the dynamics of contemporary conflict. The nexus between natural resources, economics and conflict has played a defining role in a number of Africa’s most intractable conflicts during the 1990s and early 2000s. The underlying assumption of this study is that the economic dimension of conflict can be hugely informative in terms of an understanding as to why peace agreements fail and in that sense can contribute to the resolution of conflicts if taken into account during the formulation of peace agreements. This study explores the ways in which conflict theory has dealt with the conflict-economics nexus, analyzing the extent to which theory illuminates the conflict reality in the Democratic Republic of Congo (DRC) during the period August 1998 to August 2004. It determines to what degree peace agreements in the DRC have taken the economic dimension and insights gained from the academic exploration of this topic into account during the negotiation and formulation of these agreements. In conclusion the study proposes a number of recommendations in terms of the peace process in the DRC with possible wider application for other peace agreements. / Dissertation (MA (International Relations))--University of Pretoria, 2008. / Political Sciences / unrestricted

HF communication has been used for more than a century and to this day still fulfils an important function in communications networks. In order to interface with modern communications protocols, solutions have to be designed to facilitate data communication over HF (High Frequency). STANAG 5066 is one such solution which provides an application independent ARQ (Automatic Repeat Request) bearer service for client applications. A need exists within the STANAG 5066 specification for a DRC algorithm. The objective of such an algorithm is to select the optimum data rate and interleaver size, based upon current HF channel conditions, to maximise the data throughput over the HF link. In this dissertation previous implementations of DRC algorithms were studied and evaluated. In literature it was found that algorithm implementations used the FER and no channel information to make a data rate choice. This resulted in algorithms that tended to oscillate between data rate choices, and was very slow to react to changes in the HF channel. A new DRC algorithm was designed and simulated that uses the SNR (Signal-to-Noise Ratio) and the BER estimate to make a data rate choice. The DRC algorithm was implemented in a commercial STANAG 5066 system and tested using HF data modems and a simulated HF channel. The results of the implementation and testing show that the designed DRC algorithm gives a better performance, is quicker to adapt and is more robust than previous DRC algorithms. This is also the first DRC algorithm that has been designed to use channel information, such as the SNR and BER, to make a data rate choice. / Dissertation (MEng)--University of Pretoria, 2007. / Electrical, Electronic and Computer Engineering / unrestricted

This study was undertaken around the following problem statement: As a result of erratic pastoral care for the ministers' corps of the Dutch Reformed Church (DRC) by the denomination, ministers are often left to their own resources (to fend for themselves?) and consequently experience solitude. Because of developments in society and the church, they exist and function more and more on the periphery of the lives of people and of society. With some ministers, this results in an alienation from their calling and uncertainty about how this calling should be realised in specific circumstances and contexts. From this, the following research hypothesis was formulated: When the DRC appoints pastors pastorum as an essential component of a comprehensive and holistic approach to the pastoral care of the minister, ministers will fulfil their calling with renewed self-confidence, improved competence and greater authority. This study was approached from the methodological question: Who does what, regarding who, how, where, when, why? The DRC functions according to the presbyterial synodal system of church government. Each pastor and congregation is, although selfreliant, also part of the DRC and the Church of Christ in general. The presbyterial synodal church government system is not the only way in which the church can be managed and is also not infallible. The weaknesses in the system have a negative effect especially on pastors who have attained an exceptionally important position in the system. The system of corporate episcopes is inadequate in current circumstances.</p. Concerning episcope. The service of episcope is scripturally defined, but the nature thereof depends on place, time and circumstances. In churches with an episcopal character, the episcope are the function of the bishop and possess an individual character. A general consensus exists that these episcope can be executed in a synodal-collegial manner, OR in an episcopal-personal manner. It is not necessary to apply the service in the figure of the bishop exclusively. It is essential to supplement the system of corporative episcope in the DRC with a system of personal episcope. The function of episcope must be applied to all levels of church life. Concerning the pastor. The term pastor is preferred to that of minister or preacher. No definition is given for a pastor, but the profile of the pastor is described in terms of the triangle: person, office and profession. The calling of the pastor is considered to be fundamental to this triangle. The pastoral care of pastors comprises the totality of activities provided by the entire church in order to, by means of a personal episcope (thus officially), communicate the gospel to the pastor in all facets of his humanity and, by utilizing all possible aids, to enable the pastor to fulfill his calling with renewed self-confidence (security of identity), authority (security of office) and competence (security of profession). On the strength of this description, the following resposibility is assigned to each church assembly in the process of pastoral care of pastors: The synod functions on the level of profession and office with favourable results on the personal level of the pastor. The circuit functions on the level of mutual care among pastors. The church council and congregation function on the level of the general priesthood of believers. The pastor pastorum The ministry of the pastor pastorum should be founded upon the metaphor of the shepherd. To be able to use this nowadays, the metaphor should be deconstructed first in order to look past the various romantic portrayals thereof. Then it has to be reconstructed in order to be applicable to current circumstances. The position and profile of the pastor pastorum is pointed out. Special attention is paid to the pastor pastorum as shepherd and as person who should be able to think systemically. Empirical research <lo>The empirical investigation attempts to connect the who and the what to the where and the when.<ol> <lo><li>The empirical investigation confirms the supposition that a need exists for pastoral care among pastors.</li> <li>The pastor prefers to be pastorally cared for by the church.</li> <li>For the pastor, the receiver of the pastoral care, it is not really important which church assembly the care emanates (comes?) from. Care from a major assembly which is removed further than the regional synod from the pastor, would, however, not be effective. </li> <li>It seems that lack of a vision on the whole is a serious problem, especially in churches from the reformed tradition.</li> <li>Solutions concerning pastoral care of pastors should be directed towards the person of the pastor as well as towards the structure in which the pastor works.</li></ol> The church can and must learn from other church traditions. / Thesis (PhD)--University of Pretoria, 2008. / Practical Theology / PhD / Unrestricted

"The problem of displacement remains formidable, especially in Africa. It is exacerbated by Afirca's continuous conflicts and bad policies that are taken and effected in the name of development. Women and children remain the worst victims of internal displacement. This is so because in real life, women and children are vulnerable. Thus adding on internal displacement is too much for them. There is still no international enforceable mechanism by which the protection of the rights of internally displaced persons (IDPs), and in particular women and children, can be ensured. This leaves such rights at the mercy of the states within which the internal displacement occurs. ... Chapter 2 will comprise of analysis of who an IDP is and the magnitude of the problem of internal displacement in Uganda and the DRC. This will also entail identification of the causes of internal displacement in both countries. Chapter 3 will identify and critically analyse the rights of women and children as IDPs. This analysis will focus on the conditions prevailing in Uganda and the DRC. Chapter 4 will come up with detailed and comprehensive recommendations as to what can be done to attain the acknowledgement, protection and enforcement of the rights of women and children that arise out of internal displacement. Chapter 5 will have a suitable conclusion to the study. It will show whether the findings of the study prove its hypotheses." -- Introduction. / Thesis (LLM (Human Rights and Democratisation in Africa)) -- University of Pretoria, 2004. / Prepared under the supervision of Prof. Jean-Didier Boukongu and Dr. Atangcho Ndji Akonumbo at the Catholic University of Central Africa, Yaounde, Cameroon / http://www.chr.up.ac.za/academic_pro/llm1/dissertations.html / Centre for Human Rights / LLM

This dissertation seeks to explore the principle of complementarity, its advantages and its success so far through the Democratic Republic of Congo (DRC) self-referral to the International Criminal Court (ICC). It seeks also to investigate whether there are loopholes in the principle of complementarity, especially with regard to referrals by the Security Council involving states that are not parties to the Rome Statute. In particular the dissertation seeks to explore whether states can use this principle to hamper the efforts of the ICC to bring justice to victims of the most serious crimes of international concern and to end impunity / Thesis (LLM (Human Rights and Democratisation in Africa)) -- University of Pretoria, 2008. / A Dissertation submitted to the Faculty of Law University of Pretoria, in partial fulfilment of the requirements for the degree Masters of Law (LLM in Human Rights and Democratisation in Africa). Prepared under the supervision of Dr Raymond Koen of the Faculty of Law, University of Western Cape, South Africa / http://www.chr.up.ac.za/ / Centre for Human Rights / LLM

The first chapter deals with the concept of mission history, the choice of research method, the phases of mission work in Sekhukhuneland and the establishment of the different congregations in the Presbytery of Burger. The second chapter contains the story of the Pedi and their country, as well as that of other groups like the Swazi and the Ndebele. From Chapter 3 the pioneering mission work of evangelists and missionaries is described. The role that evangelist Phillipus Mantsene played since 1875 until his death in 1915, as well as his supporters, Rev and Mrs AP Burger, laid the foundation for the involvement of the Transvaal Vrouesendingvereniging, which was established on 15th November 1905. This led to the calling of Rev and Mrs AJ Rousseau, who pioneered the first mission station in Sekhukhuneland, called BURGER, which was officially opened in 1929 (Chapter 8). This is followed by a description of the monumental work done by missionary Jacobus Murray Louw at Maandagshoek Mission Station from 1st April 1944 to January 1962. The first black missionary for this area, Rev EM Phatudi, was ordained with him on 27th March 1943 at Mphahlele, and for a few years the two worked together in Sekhukhuneland. Phatudi’s mother, who was the daughter of the late Kgoši Sekhukhune and his father, chief Mmutle III, saw to it that he became a special person in the history of the DRC Mission. He was one of the great leaders of the NGKA, as will be seen in Chapter 10. Since partnership is the theme that dominates in this research, ample space is given to the work of evangelists in the history of the DRC’s support mission in Sekhukhuneland. They were the missionaries’ partners in establishing the Kingdom of God among the Pedi, Swazi and Ndebele of Sekhukhuneland. With the help of Rev MJ Mankoe who served in the congregation of Burger (Chapter 26), I have been able to paint several life-sketches of the early pioneering evangelists who worked diligently and under difficult circumstances, shoulder to shoulder with the missionaries (Chapter 11). The history of each of the mission stations which functioned in Sekhukhuneland is dealt with in Chapters 12 to 14. The missionaries who pioneered these stations and their co-workers made a major contribution to the growth of the mission church and the forming of the Presbytery of Burger. The history of each of these mission stations, as well as the different congregations resulting from these stations, is described. The time came for consolidating the borders and the placing of black ministers. This was the work of the Planning Commission of the Presbytery of Burger in 1965 and 1966. Chapters 16 to 22 describe the borders, different wards and names of the congregations. The strategy behind this was to ensure that the missionaries, white and black, could occupy equal posts. Once this was completed, a new phase of partnership came into being, as described in Chapters 24 to 30. During this time the phasing out of evangelists took place, as is dealt with in Chapter 31. The two legs that carried missionary work up to this stage became weaker and weaker. Firstly, evangelists left or became full ministers, and secondly the need for a white minister or white missionary fell away. It has also been necessary to describe the circumstances, experiences, views and contributions made by missionaries to prepare the step-out and take-over stages of the phasing-out period from Church-Mission partnership towards full independence and Church-Church partnership. In Chapter 33 a bird’s eye view is taken of the phases of partnership in the DRC’s mission work in Sekhukhuneland. One has to conclude that the circumstances and conditions of the members of the NGKA were harsh. They were struggling against poverty, difficult living conditions, sickness and unemployment. The endeavour for unity among churches, the great topics of church growth and the development of their church to full financial independence could not receive their full attention. In conclusion, I reflect on post-1994 developments in a wider context, based on the study of the previous phases. I also look at the DRC since 1994, asking whether the DRC is still serious about mission work and the mission call. Another chapter was added to reflect on partnership, asking whether this was the answer to problems and tensions. A historical journey since Whitby (1947) is taken and the role the Ecumenical Movements have played since then in the young churches in South Africa is summarized. The great concepts of missio Dei, kerygma, diakonia and koinonia are evaluated in the light of partnership and obedience which was the theme of Whitby, but also the theme that caused continual dialogue, especially amongst the Evangelicals and the Ecumenical Movements. / Thesis (PhD)--University of Pretoria, 2011. / Science of Religion and Missiology / unrestricted

AFRIKAANS : Heelwat artikels in dagblaaie, kerkkoerante en ander publikasies in verband met die NG Kerk skep die indruk dat die NG Kerk ‘n krisistyd beleef. Die krisisse wat aan die orde gestel word, hou onder andere verband met die volgende:<ul> <li>‘n identiteitskrisis omtrent spiritualiteit;</li> <li>onduidelikheid oor etiese kwessies;</li> <li>spanning ten opsigte van die kultuur-politieke rol van die NG Kerk en gepaardgaande konflik oor kerkhereniging; </li> <li>die neo-liberale verbruikerskultuur se uitdagings aan die NG Kerk waarop dit nie noodwendig voorbereid is nie. </li></ul> Dit is egter opmerklik dat die NG Kerk tog ook die nuwe millennium met nuwe visie en ywer benader in ‘n soeke na kontekstuele en religieuse relevansie. Daar is min twyfel dat die resente stand van die NG Kerk kompleks is. Dit kan moontlik toegeskryf word aan ‘n verskeidenheid historiese vormingsagente wat die veelvuldige en uiteenlopende kerklike fenomene ten grondslag lê. Deur die geskiedenis van die NG Kerk binne die groter konteks van die Suid-Afrikaanse geskiedenis te bestudeer, is dit moontlik om die oorsaaklike verbande en die samehang van gebeure en verskynsels te bepaal. Op hierdie wyse kan daar aan die resente situasie en konteks van die NG Kerk betekenis verleen word. Die polities-kulturele situasie in Suid-Afrika het sedert 1990 radikaal verander. Hierdie verandering het ook verskillende reaksies tot gevolg gehad. Vir sommiges is die verandering die langverwagte uitkoms van jare se politieke stryd. Vir ander het dit ‘n belewenis van onsekerheid en wanhoop gebring. Die polities-kulturele situasie is egter nie al wat verander het nie. Die verandering in Suid-Afrika word ook omvat deur veranderende sosiale denke en -gedrag. Hierdie nuwe manier van dink en doen verteenwoordig die postmoderne paradigma. Toenemende sekularisasie is ook waarneembaar. Die NG Kerk staan binne die invloedsfeer van hierdie gebeure. Die nuwe politieke en kulturele situasie het implikasies vir die identiteit van die NG Kerk. Die verandering van wêreldbeskouings bring ook uitdagings wat vormend inwerk op die selfverstaan van die NG Kerk. Die begrip wat die kerk vir die betekenis van hierdie gebeure toon, sal bepaal waartoe die NG Kerk in toekoms verander. / ENGLISH : Many newspapers, church newspapers and other publications report that a crisis is immanent in the Dutch Reformed Church today. The crisis is seen in the incidence of the following: <ul> <li>an identity crisis concerning spirituality; </li> <li>ambiguity about ethical matters;</li> <li>tension over the DR Church’s cultural and political role in South Africa as well as conflict over church unity with the members of the DRC family;</li> <li>the fact that the DR Church is caught offhanded by the challenges of the neo-liberal consumer culture. </li></ul> It must be said that despite this crisis, there are signs of the DR Church seeking contextual and religious relevance in the new millennium. There is little doubt that the recent state of affairs in the DR Church is complicated. The reason can be ascribed to a variety of historical incidents that underlie the numerous and diverse phenomena in the church. Against the background of the South African history, the history of the DR Church should be studied. This way it is possible to identify the causality and cohesion of historical events and phenomena. This process could help to give meaning to the recent situation and context of the DR Church. Since 1990 the political and cultural situation in South Africa has changed radically. People reacted differently to this change. For some it was the long-anticipated outcome of years of political struggle. For others it has brought uncertainty and despair. But this was not the only change since 1990. The change in South Africa is encompassed by a new way of social thinking and behaviour, which represents what is known as the postmodern paradigm. Secularisation of everyday life and institutions is also escalating. The DR Church stands within the sphere of influence of these phenomena. The new political and cultural situation has implications for the identity of the DR Church. The postmodern paradigm brings challenges for the way in which the DR Church understands itself as a church and its mission within the South African context. What the church in future will become, depends on the church’s comprehension of the meaning of these phenomena. / Dissertation (MA(Theology))--University of Pretoria, 2008. / Church History and Church Policy / unrestricted