Throughout the world, but especially in the African continent, international, cross-border and national conflicts are ongoing. In the majority of these conflicts child soldiers are involved in various ways. Judicial problems concerning the prosecution of commanders and leaders of armed groups, irrespective of governmental or not are being solved. Thus, underlying concern is left to the issue of accountability of child soldiers. International, Regional and National protection measures provide for certain judicial standards dealing with children under the age of eighteen. In order to fully understand the difficulties arising from the existence of universal binding measurement dealing with the accountability of child soldiers, one has to be aware of the international, regional and national legislative frameworks. In Sub Saharan Africa, especially in Rwanda, Uganda and the Democratic Republic of Congo, governments face various difficulties, such as the implantation process of international protection measures and ongoing conflicts, making it very difficult to examine the status of accountability measures for child soldiers. States have different minimum ages for accountability for child soldiers. Only a process of international co-operation between governments and non state actors can attempt to deal with the accountability of child soldiers. Not only deterrent, but rather restitution approaches and reintegration programmes should be followed in order to bring justice and achieve results in peace processes.

Abstract not available.

Abstract not available.

This thesis focuses on the power struggle between Mobutu's administration and the Catholic Church as it played out in the realm of education. In particular, it focuses on how state ideology, meaning authenticity and Mobutism, pervaded education through textbooks and teaching materials in 1970s Zaire and how the Catholic Church attempted to resist state ideology through education as well. Discourse analysis was used to determine how state dogma and Church opposition were disseminated to youth via educational materials. Furthermore, I examine how and why youth responded to this power struggle through the examination of painting, music and literature created by the 1970s cohort as they aged. Again, discourse analysis is used to understand the meanings conveyed through the art. Youth, I argue, have rejected Mobutu and his ideologies and remain uncertain, perhaps even suspicious, of the Catholic Church's role in Zaire (Democratic Republic of the Congo).

This dissertation will explore the process followed in the design of a sub-level open stope (SLOS) by using examples of actual stopes scheduled to be in production between August 2006 and February 2007. The main objective is to give the reader an understanding into sub-level open stoping and the design process followed. The objective here is to present a design methodology applicable to sublevel open stoping, but also to then bridge the gap between theory and practice by applying said methodology to an actual design example. The design examples used in this dissertation is based on the O640, L651 and N659 stopes in the 3000 Orebody of Xstrata Copper Operation’s Mount Isa Mine, located in North-West Queensland, Australia. The actual design reports as required by the mine are attached in Annexure 1 through 3. Given the similarities of the designs, only O640 will be analysed comprehensively within the main content of this report, with L651 and N659 discussed specifically insofar issues that were unique to these stopes. With the design of O640, all aspects or design considerations as stipulated in the design process were discussed and analysed so as to define the final stope shape. These design considerations include: <ul> <li> Faulting</li> <li> Grade Contours</li> <li> Existing Development</li> <li> Surrounding Fill masses</li> <li> Rock Mechanics</li> </ul> Once the the final stope shape has been set, options regarding stope extraction will take place. This is where the initial stope layout takes place and where the engineer looks at the advantages and disadvantages of all the different options available in mining the stope. In this phase, the most effective extraction option is decided upon. Once the engineer have decided a final stope shape and extraction option, the stope will be analysed in further detail referring to drilling, the amount of drawpoints, ventilation and other stoping requirements. These are all defined as stope design features and are considered a general summary of the stope design. The design features phase is closely followed with all the safety considerations that have been taken into account since the stope design started. Main concerns and stope specific safety issues are discussed and possible solutions given. It is part of the work of the mine planning engineer to anticipate all possible safety issues and make the production department aware of what can be expected during the development, mining and filling activities of every stope. At this stage the design of the stope nears completion. The remainder of the design now goes into more detail and addresses the critical tasks that from part of sub-level open stoping. These include: <ul> <li> Reserves and Scheduling</li> <li> Development and Drilling</li> <li> Production and Firing (Blasting)</li> <li> Ventilation</li> <li> Services</li> <li> Filling</li> <li> Economic Analysis</li> </ul> Although all of the abovementioned have already been mentioned during the design features phase, it is still required to give additional details so the different departments involved have an accurate idea of what to expect, when to expect it and therefore be able to sufficiently plan for it. It must be noted that it does happen that something may be “discovered” during any stage of the final design, which may render the current design undesirable. When this happens the stope must be re-designed until all issues have been resolved or at the least have been managed appropriately. Even though this report does not go into detail with the L651 and N659 designs, these designs are included as they bring to light issues that may arise that are unique to individual stopes. L651 looks at how a design drastically changes when ore not planned for is discovered. N659 looks at what happens when a stope is the first to be mined in an area with inadequate infrastructure. The main content of the dissertation discusses and explains the design procedure as it would take place at Mount Isa Mines, but it is still quite difficult to follow logically. For this reason a flowchart was included to give the reader a more comprehensive summary of the design process. / Dissertation (MEng)--University of Pretoria, 2011. / Mining Engineering / unrestricted

Made available in DSpace on 2017-06-01T18:20:41Z (GMT). No. of bitstreams: 1 paula_patricia_borba.pdf: 19348194 bytes, checksum: dcfe3cb2db9449555f4f168bb7097a01 (MD5) Previous issue date: 2013-05-10 / Microbial enzymes have a high biotechnological potential and are used in various industrial areas . The cyclodextrin glycosyltransferase ( CGTase , EC 2.4.1.19 ) is an enzyme with hablidade to convert starch into cyclodextrins ( CDs ) , being produced by various microorganisms , mainly bacteria of the genus Bacillus , being mainly applied in the food and pharmaceutical industries . Using the formulation of alternative means considered economical , has generated many studies to replace components of the traditional means of production , for substrates of industrial and agro-industrial residues of low cost and high value -added . In this connection , it was initially performed , selection of produce CGTase enzyme samples , Bacillus licheniformis (UCP 1021) were selected by halo formation characteristic in all conditions tested. Then , studies were conducted to formulate economic alternative means using agroindustrial waste , peel the potato ( Solanum tuberosum L ) and whey in the production of CGTase . In formulating means that the potato peel replaced starch , the concentrations used were 2.5 ; 5:10 g / L , being named A ¹ , A ² and ³ The . In the middle called B was replaced by potato peel peptone ( 10g / L ) in medium C was replaced by yeast extract, whey (5 g / L) medium and peptone- D was replaced by whey ( 5g / L). All assays for enzyme production occurred at 37 ° C , 150 rpm , 84 hours . The results showed that the standard production medium achieved a specific activity of 0.120 umol / mg in 24 hours, and it was found that all alternative media produced the enzyme , however, the midst called A ¹ showed the highest specific activity for B- CD ( 0.823 umol / mg) at 12 hours , suggesting that the use of cheap media containing organic residues , is a viable alternative for the production of various bioactive compounds used in microbial biotechnology process. / As enzimas microbianas apresentam um elevado potencial biotecnológico e são utilizadas nas mais diversas áreas industrial. A ciclodextrina glicosiltransferase (CGTase, EC 2.4.1.19) é uma enzima com hablidade de converter amido em ciclodextrinas (CDs), sendo produzida por diversos microorganismos, principalmente por bactérias do gênero Bacillus, sendo principalmente aplicada nas industrias de alimentos e farmacêutica. A utilização da formulação de meios alternativos considerados econômicos, tem gerado diversos estudos no sentido de substituir componentes dos meios tradicionais de produção, por substratos de resíduos industriais e agroindustriais de baixo custo e com elevado valor agregado. Neste sentido, foi realizada inicialmente, a seleção de amostras produtoras da enzima CGTase, tendo sido selecionado Bacillus Licheniformis (UCP 1021), através da formação de halo característico em todas as condições testadas. EM seguida, estudos foram realizados para formulação de meios alternativos econômicos utilizando resíduos agroindustriais, casca da batata (Solanum tuberosum L) e soro de leite, na produção da CGTase. Na formulação dos meios em que a casca de batata substituiu o amido, foram utilizadas as concentrações de 2,5; 5 e 10 g/L, sendo denominados de A¹, A² e A³. No meio denominado B, foi substituído a peptona por casca de batata (10g/L), no meio C foi substituído extrato de levedura por soro de leite (5g/L), e no meio D foi substituído a peptona por soro de leite (5g/L). Todos os ensaios de produção da enzima, ocorreram a 37ºC, 150 rpm, 84 horas. Os resultados obtidos evidenciaram que o meio padrão de produção obteve uma atividade específica de 0,120 umol/mg em 24h, e verificou-se que todos os meios alternativos produziram a enzima, porém o meio denominado A¹ apresentou a maior atividade específica para b-CD (0,823 umol/mg), em 12h, sugerindo assim que a utilização de meios econômicos contendo resíduos agroindustriais, é uma alternativa viável no processo de produção de diversos compostos bioativos utilizados na biotecnologia microbiana.

This thesis conciders the conditions for news reporting in two post-authoritarian African nations, and places focus on Chinese media’s influence on the local journalism and media system. The question of how much influence China’s international media has in Africa, has been brought up by communication scholars, but not yet empirically studied. Based on a theoretical framework of how the structure of the media system dictates the practice of journalism, this research enquiry scrutinises the mass media coverage and framing of the news that involves Chinese engagements in Africa. The research question concerns whether China’s investment efforts in the area of media, culture and education have discernible impact on journalism and mass media content in Kenya and South Africa. The context which gives rise to the research question consists of a collection of sometimes instrumentalist literature, describing the nature and the intention of China’s expanding engagement in Africa, as well as an academic debate about what consequences the relationship has for social and political development in African countries. In such debates it has been discussed whether the Chinese commercial investments or direct aid is benefitting social justice in Africa or rather serve to widen existing inequalities. It is in this debate assumed that while Western countries have, since the end of the Cold War, promoted a democratic development model on the African continent, China is currently advertising an alternative model for development. However, there has not been any study to date, which tests this assumption. This study was conducted to gather empirical evidence for a better understanding of the scope and implications of Chinese international media and cultural exchange in Africa. The research is based on interviews with media practitioners who worked for Kenyan and South African media organisations, and content analysis of newspaper articles in the respective countries. The methodological approach forms two separate parts, which both help to answer the research question. By triangulation of the results from the two-pronged study, some significant findings have been drawn. The media practitioners in the majority display a critical view towards Chinese international media as source of information and forum for debate. The result of the content analysis indicates that any influence of China’s international media on local reporting is limited to certain publications, depending on media funding, ownership, and relation to the government.

As a recipient of Official Development Assistance (ODA), the Republic of Zambia is considered one of the aid-dependent nations in Sub-Saharan Africa. Development assistance has been said to have had made absolutely no contribution to economic growth and development in the country on observation of the Gross Domestic Product (GDP) per capita figure over the years which indicates periods of stagnation in growth despite ODA receipts. Generally, this conclusion has in the past been drawn without consideration for, and appreciation of, the variations in the objectives and disbursement channels of ODA. Consequently, this study sought to investigate the separate impact of multilateral and bilateral ODA on GDP per capita which served as a proxy for economic growth and development in Zambia. Based on a modified neo-classical economic growth model that incorporates multilateral and bilateral ODA as determinants of economic growth, this study employed the ARDL model to investigate the long-run and short-run relationship between GDP per capita and ODA from 1975 to 2016. Two similar growth models were analysed substituting the net ODA variable with multilateral and bilateral ODA in order to assess the relationship. In addition to net ODA, the model included the variables investment, trade openness and the labour force as determinants of economic growth. Findings from the study show that multilateral ODA had a significant negative impact on GDP per capita, while the bilateral ODA model showed a statistically insignificant negative relationship. The findings of the study support the notion that different types of foreign aid cannot be expected to have a uniform impact on growth and development in terms of effectiveness. The recommendations point to the importance of re-evaluation of modalities by donors to ensure that development assistance is more effective in achieving sustainable development goals.

Please read the abstract in the 00front of this document. / Thesis (PhD)--University of Pretoria, 2011. / Economics / unrestricted

Two recent developments dominate the political economy of Sub Saharan Africa -- the adoption of economic structural adjustment reforms and the emergence of pressures for the democratization of the political process. Economic reform measures have spawned civil society, made up of anti-authoritarian, anti-statist, non-governmental organizations, that demand political liberalization. This study is an attempt to analyze, theoretically and quantitatively, the unanticipated association between these developments. Democratic institutions inherited by Sub Saharan Africa at independence were subverted either through military coups or by the abuse and misuse of the institutions by an inordinately ambitious political elite. Thus, about a decade into independence more than three quarters of the sub continent virtually came under authoritarian rule. Contemporaneously there was a decline in the economies of these countries, forcing them to borrow from international financial institutions, in order to offset their balance of payment difficulties. By the mid-1980s most of Sub Saharan Africa had also instituted structural adjustment programs. Using a pooled cross-sectional time series model of analysis, data gathered from Sub Saharan African countries are analysed to test the explanatory power of the three extant contending theories of development: classical, dependency, and neoliberal. Then, most importantly, the analysis examines the relationship between structural adjustment, the development of civil society, and democratization. Overall, the results indicate that the institutional structures generated by, and the political millieu created by structural adjustment are conducive for the evolution of civil society and for its activities for democracy. This political opportunity, however, is also found to be dependent on the level of restructuring involved. The more the political system is restructured, the more the freedom of political participation by civil society, and the higher the level of democratization. The study found a very weak relationship between structural adjustment and economic growth, thereby calling into question many current economic policies. It further demonstrated that no one single theory had the advantages over others in explaining the dynamics of both political and economic development in Sub Saharan Africa and, by extension, in other developing countries.