Ph.D. (Economics) / The main objective of this study is to assess the role of the informal sector in the economy of the Democratic Republic of Congo (DRC) by assessing its linkage with the formal sector. An attempt to assess the linkage between the formal and informal sectors was carried out by using quantitative techniques that range from the construction of a Social Accounting Matrix (SAM) to the building of a Computable General Equilibrium (CGE) model to assess the impact of each of the sectors in the DRC economy. A new SAM that incorporates formal and informal sector is constructed whereby different techniques and methodologies are applied. The data sources and techniques used to build the SAM and CGE model are described. The DRC Formal Informal Sector Model (DRCFIM) is constructed based on ORANI model of the Australian economy. The generic edition of the model, ORANI-G, developed for CGE modellers was constructed by Horridge (1998). The model has a theoretical composition which is typical of a static Applied General Equilibrium (AGE) model. Nonetheless, one particularity of the DRCFIM is that it is a multi-sectoral CGE model that depicts the reflected structure of the DRC’s formal and informal sectors along with a diversity of linkages between various economic agents such as government, investors, traders and enterprises. DRCFIM is used to perform two policy simulations. The first policy simulation assessed the impact of land use on the DRC economy and the second is on trade liberalisation. In tracing the impact of the land use subsidy shock, output rises and domestic prices decline in most sectors, indicating considerable efficiency and lower costs per unit of output. Land use subsidy raises output in most sectors, stimulating the real GDP to rise by 0.34 and 0.26 percent in the short and long run respectively. Concerning the second policy simulation, we only allowed the import price to decrease by 5 percent in the model. As we would expect, gross domestic product, exports and employment rise when the import price on products is reduced by 5 percent in the short run.

Thesis (M.M. (Security))--University of the Witwatersrand, Faculty of Commerce, Law and Management, Graduate School of Public and Development Management, 2012. / This study sets out to examine the causes for the continued conflicts in the Kivu particularly after the establishment of a transitional government in the DRC in 2004 and the elections in 2006. Three factors appear to account for the continued conflicts. First is the ethnic divide between the local population and the Kinyarwanda speakers that have settled in the region overtime. This conflict is mostly centered on the land issues which were not addressed in the final agreements for the establishment of the transitional government in Kinshasa, at Sun City in 2002. It should not be surprising that this sparked new fighting in 2006 after the elections. Second is the continued existence of a central power vacuum. This is mainly because the national army is neither strong nor disciplined enough to establish its hegemony in the area. Its task was made more difficult by the continued Rwandan interests in the area, which went beyond security concerns. Thus the Nkunda rebellion was only successful because of Rwandan support. Third is the continuation of the war economy centered on the exploitation of natural resources that are abundant in the area. This has helped to fund the war in the Kivus, and as long as there are profits to be made from natural resources exploitation, conflicts and violence in the area will continue. The conclusion from this study is that peace in the Kivus needs the establishment of a central administration with both military power to secure the area, in particular the mining areas and judicial authority to prosecute the warlords and armed groups that continue to benefit from the continuation of conflicts and violence in the area.

A dissertation submitted to the Faculty of Health Sciences University of the Witwatersrand, Johannesburg for the degree of Master of Science. / The Special Pathogens Unit (SPU) of the National Institute for Virology has diagnosed a total of 158 cases of Crimean-Congo haemorrhagic fever (CCHF) from the time that the disease was first recognized in South Africa in 1981 up until the end of 2000. The virus has a propensity to cause nosocomial infections, and consequently rapid diagnosis is important for the isolation of the patient and the institution of barrier-nursing to protect medical staff and the community at large. Thus it is essential that the SPU should have the latest diagnostic and research tools available. Diagnosis of CCHF is generally confirmed by isolation of the virus, detection of viral RNA amplified by reverse transcriptase polymerase chain reaction (RT-PCR), demonstration of seroconversion or a >4-fold increase in IgG antibody titre, or detection of specific IgM antibody activity. Virus can be isolated in 1-6 days in cell culture, but the method is less sensitive for the isolation of low concentrations of virus than the use of suckling mice which, however, takes 7-9 days.

A research report submitted to the Faculty of Engineering and the Built Environment, University of the Witwatersrand, Johannesburg, in partial fulfilment of the requirements for the degree of Master of Science in Engineering. Johannesburg, 2017 / The research was driven by the need to optimise the Ruashi Mining operation to prevent further high-grading without destroying the value of the mine. Ruashi Mining incurred a five-year stripping backlog caused by the drive to reduce costs. As a result of this, a decline in metal production was imminent in the subsequent years. The study was conducted mainly using SimSched Direct Block Scheduler (SimSched DBS) in comparison with schedules from Datamine Net Present Value Scheduler (NPVS) and MineSched. The scenarios investigated have shown that running a mine based on break-even cut-off grade does not optimise the net present value of an operation as shown through the results of Ruashi Mining. The research also proved that royalty affects the cut-off grade for Ruashi Mining, and cannot be ignored. The proper scheduling of wasting stripping resulting from cut-off grade optimisation has contributed to a timeous exposure of high grade to avert the decline in metal production. All the three scenarios have shown that high grade ore can be availed on time, thus producing a smooth metal output for the life of mine. Cut-off grade optimisation is very crucial for any mining organisation as it is the main driver of value. Ore reserves are important in the determination of a company’s share price. High cut-off grade results in fewer reserves, and vice versa. Since mineral reserves are the source of revenue, therefore, the higher the reserves, the higher the revenue. Low cut-off grade may result in the processing of material that does not give high profit at the beginning of the life of mine. This, therefore, lowers the mining company’s net present value. This makes it imperative to optimise the cut-off grade during the mine life in order to optimise the net present value. During mining operations, there are various stakeholders whose interests must be considered during cut-off grade optimisation because they derive many benefits from the mine. These stakeholders include shareholders, employees, government, the community and non-governmental organisations. Cut-off grade optimisation has shown that there is an opportunity to improve the net present value of Ruashi Mining. SimSched gives a higher net present value (NPV) compared to the current Ruashi life of mine schedule. This indicates that SimSched can be used to improve the NPV for Ruashi by producing an optimised schedule. It is important to note though that there is need for the software to have provisions to take into account the initial stockpile status so that there is a holistic approach to the schedule optimisation. The grade-tonnage curve is steeper closer to zero implying that a small change in cut-off grade has a huge impact on reserves. Based on the results of the study it was clear that optimisation in SimSched DBS results in a steeply declining cut-off grade policy compared to NPVS. In addition, optimisation in SimSched leads to highly accelerated mining rate and massive stockpiling. Royalty is a cost which has to be incorporated in cut-off grade optimisation. The study has shown that the cut-off grade for Ruashi is increased by 19.8%. Ignoring royalty may result in overvaluing of an operation. Environmental considerations favour the optimisation of the use of the mieral resources. Consideration of environmental costs lowered the cut-off grade for Ruashi by 16%. / MT 2017

Le propos de cette thèse est d’étudier le rift de l’Atlantique sud au Congo, en se focalisant sur (1) la dynamique des reliefs amont du rift (les épaulements de rift), (2) l’architecture stratigraphique du remplissage sédimentaire et (3) le routage sédimentaire ante- à syn-rift. L’etude de terrain a permis de reconstituer la géométrie des paléovallées, le cadre sédimentaire et stratigraphique du remplissage sédimentaire et de discuter des implications géodynamiques de ces paleovalleys en termes de dynamique du rift et de contrôle des systèmes sédimentaires. Ces paléovallées ont été incisées dans le substratum précambrien du Mayombe par des rivières alluviales pendant la phase d'étirement du rifting et remplies par des sédiments d’âge Aptien moyen de la Formation de Chéla. Le remplissage sédimentaire de ces paléovallées consiste en des faciès gravitaires sousaquatiques interdigités dans les argiles lacustres riches en matière organique, recouvrant en discordante le socle Précambrien du Mayombe. Ces depôts s'organisent en une séquence transgressive, caractérisée par l’empilement des séquences élémentaires de type finning-up . L’analyse sédimentologique de carottes a permis de caractériser les environnements de dépôts des Formations de Pointe-Noire, Pointe-indienne et de Chéla, correspondant à la phase d’hyperextension (sag) de l’evolution du rift. La Formation de Pointe-Noire d’âge Barrémien moyen est constituée des faciès gravitaires de cônes sous-lacustres profonds à dominance argileux et riches en matière organique dans lesquels s’intercalent localement des faciès carbonatés de plate-forme peu profonde et gravitaires resédimentés du membre de Toca, accumulés au cours d'une importante transgression associée à un évènement anoxique général. La Formation de Pointe-indienne d’âge Barrémien supérieur à Aptien inferieur est caracterisée par variations latérales et verticales de faciès. Elle comprend des faciès gravitaires gréso-argileux (membre Mengo) de cônes sous-lacustres profonds, surmontés par des faciès mixtes silicoclastiques et carbonatés de rampe interne à moyenne dominée par des vagues de tempêtes (Membre des Argiles vertes) passant progressivement vers le haut à des faciès deltaïques de Tchibota. La formation de Chéla d’âge Aptien moyen se caractérise par des variations latérales et verticales de faciès. Elle comprend des faciès sous-aquatiques de delta alluvionnaire passant latéralement aux faciès gravitaires sous-lacustres, suivi par des faciès de baies mixtes lacustres -marine, surmontés par des faciès de sabkha (membre Vembo) recourvets par les evaorites de Loémé. Les facies de sebkha au sommet de la Formation de Chéla témoignent d’une incursion marine avant la mise en place des évaporites. Les corrélations stratigraphiques entre puits ont permis de subdiviser la succession sédimentaire de la phase d’hyper-extension (sag) en trois principales séquences de dépôt montrant respectivement des tendances rétrogradante, progradante et rétrogradante. La datation des zircons et apatites détritiques a permis de reconstituer le routage sédimentaire ante- à syn-rift et l’évolution de reliefs en amant du rift. Les résultats montrent des changements spatio-temporels de sources de sediments et deux régions de provenance de sédiments. Les sédiments ante-rift (Formation de Vandji) d’age Berriasien proviennent des sources lointaines, confirmant l’existence d’un système pre-rift – et donc d’un bassin antérieur au système rift du segment central de l’Atlantique sud, alimenté de l’ouest à sud-ouest par des sources angolaise et brésilienne. Les sédiments syn-rift (Formation de Djéno) d’age Barremien inférieur et Sag (Formation de chéla) d’age Aptien moyen proviennent des sources locales (massif du Mayombe), ce qui implique un changement majeur de sources et de reliefs entre les phases pre-rift et syn-rift et l’existance des reliefs en amont de la faille bordière pendant les phases d’étirement et d’hyper-extension du rift. / The purpose of this thesis was to study the South Atlantic rift system in Congo by focusing on (1) the dynamic of the upstream paleoreliefs (rift shoulders), (2) the stratigraphic architecture and (3) sediment routing of the pre to syn-rift sedimentary infilling. Detailed field mapping allows to characterize the geometry of the incised valleys, sedimentary environments of thier sediment infilling and to discuss the geodynamic implications of these incised valleys in terms of rift dynamic and control of sedimentary systems. These incised valleys were cut through the Precambrian Mayombe basement by alluvial processes shaping pediments during the stretching period of the rift and filled with middle Aptian siliciclastic sediments of the Chéla formation. The sediment filling consists of flood-generated sublacustrine gravity flow deposits interbedded with organic-rich lacustrine shales, overlying unconformably the basement. These deposits are organized into an overall transgressive depositional sequence, characterized by stacked of elementary fining upward facies sequences. Detailled facies analysis of cores permits to determine the sedimentary environments of the Pointe-Noire, Pointe-Indienne and Chéla Formation, developed during the hyper-extended (sag) rift phase. The middle Barremian Pointe-Noire Formation consists of organic-rich shale-prone deep-lacustrine fan facies intertonguing locally with shallow-water platform carbonate facies and gravity-flow resedimented carbonate facies of the Toca Member that were deposited in an anoxic deep-lake. The Late Barremian–early Aptian Pointe-Indienne Formation is characterized by facies heterogeneity. This Formation consists of sand-rich sublacustrine-fan gravity facies of Mengo member overlain by storm influenced mixed siliciclastic-carbonate ramp facies (Argiles vertes Member) passing upward to deltaic facies of Tchibota member. The middle Aptian Chéla Formation represents a widespread transgressive unit, characterized by lateral and vertical changes in facies and a variety of depositional environnements. It is made up of interbedded coarse-grained alluvial bedload facies and sub-lacustrine gravity facies at the base, overlain by lacustrine-marine mixed bay facies passing upward to sabkha facies, which in turn are capped by evaporites of the Loémé Formation. The sebkha facies records the late middle Aptian marine transgression on the Congo basin prior to the deposition of Upper Aptian evaporites of Loémé Formation. Well-log stratigraphic correlations permit subdivision of the middle Barremian to middle Aptian syn-hyper-extended rift-related deposits into three major depositional sequences that display retrogradation, progradation, and retrogradation stacking pattern, respectively. Detrital zircon and apatite provenance analyses provide a better understanding of sediment routing systems of the pre to syn-rift infilling, and paleorelief and tectonic evolutions during the Early Cretaceous times. The results show changes in sediment provenances and two different source areas. The Berriasian-Valanginian Pre-rift sediments of the Vandji Formation were derived from multiple and relatively distant source areas, located either in the South America and southern of Africa plate, thus supporting the existence of large intracratonic basin prior to the rifting, fed by prominent large-scale drainage system. located toward the southwest. In contrast to the Pre-rift sediments, the Barremian syn-stretched rift sediments of the Djeno Formation and the Aptian syn- hyper-extended rift sediments of the Chela Formation were derived from adjacent Precambrian Mayombe belt that underwent phases of tectonic uplift during the rifting. Consequently, this implies an abrupt change in sediment provenance and relief between the pre-rift phase and the Syn-rift phase and indicate the persistence of local sources, i.e. from rift shoulders, from the stretching rift phase to the hyper-extended (sag) rift phase.

From October-December 2013, we conducted a study of the newly discovered primate species lesula, Cercopithecus lomamiensis, in the DR Congo. We placed 41 camera traps inside a 4 km2 grid outside the proposed Lomami National Park (LNP). We compared an analysis of 140 lesula events over 1,683 camera trap days from the heavily hunted Okulu area to a pilot study (38 events over 462 camera trap days) at the Losekola study site within the LNP. Our data show an unexpected result: capture probability of lesula (0.08) is the same at both the hunted and non-hunted sites. This is in contrast to the sharp decline in capture probability of all other medium-to-large terrestrial mammals at the Okulu site. These findings suggest lesula’s cryptic behavior is an important adaptation buffering the species from the impacts of hunting. This study also expands knowledge on minimum group size, terrestriality, diet, and times of activity. / Includes bibliography. / Thesis (M.A.)--Florida Atlantic University, 2015. / FAU Electronic Theses and Dissertations Collection

No description available.

Researchers and policy makers largely focus on gender-based violence (GBV) in eastern Congo’s conflict zones, leaving the remainder of the vast country understudied. Few in-depth studies exist regarding the nature and dynamics of gender-based violence that occurs in non-conflict zones in the Democratic Republic of Congo (DRC) or on a regular basis within households of eastern DRC. This study uses the 2014 DRC Demographic Health Survey (DHS) data to explore the key factors that are associated with all forms of violence against women and girls in the DRC and takes a more refined look at the association between conflict and GBV than any other empirical study to date. By using a multilevel modeling approach, the research examines key risk factors at the individual, community and province level that influence a woman’s exposure or not to physical and sexual violence in the DRC. By developing and including variables that quantify social norms and attitudes as well as spatially joining data from the Armed Conflict Location and Event Database, the study analyzes the role of individual and contextual factors and the relationship between gender-based violence and conflict. Findings highlight that a woman’s experience of intergenerational violence and patriarchal norms at the individual and community levels are among the strongest predictors of GBV in the DRC, and that intimate partner violence (IPV) is the most prevalent form of GBV, even in areas of conflict. Surprising results show that a woman is less likely to experience GBV in areas of higher armed conflict – even when considering non-husband violence. The results do not show higher levels of IPV in areas that experience higher instances of violent conflict, contradicting studies conducted in other contexts. One of the most striking results of this study is the significant and consistent role that community-level variables play in the models -- demonstrating the valuable contribution of multilevel analysis and use of contextual variables. This study underscores how critical the use of “neighborhood” variables is to understanding GBV risks and validates the use of the ecological theoretical framework, moving beyond only individual risk factors to explain GBV in the DRC context. / 1 / Monica Carlson

Review of forestry policy and deforestation in the Democratic Republic of the Congo, with a look at REDD, national parks, forest certification systems, non-timber forest products (NTFPs) and a focus on community-based conservation.

La période de mondialisation accélérée qui a marqué la fin du XXe siècle a conduit, entre autres, à une croissance soutenue des inégalités dans le monde, à la dégradation des écosystèmes naturels mondiaux et à une paupérisation marquée de certaines populations africaines. Parallèlement, certains bouleversements liés à l'urbanisation, à la croissance démographique et aux flux migratoires ne manquent pas de complexifier les situations socio-environnementales contemporaines. À travers ce portrait, l'eau soulève bien des enjeux, particulièrement là où elle fait l'objet d'une convoitise croissante et tend à devenir un élément de pouvoir. Le quart des réserves d'eau du continent africain sillonne la République démocratique du Congo. Pourtant, à l'instar d'autres ressources naturelles, la population congolaise n'en bénéficie que très peu. Dans un contexte de désengagement de l'État, des défis majeurs se posent à cette dernière quant au savoir-vivre-ensemble autour d'une ressource commune, limitée et vitale comme l'eau. L'objectif de cette recherche est de brosser un portrait de la gestion de l'eau au village de Mbankana, situé dans une région rurale de la République démocratique du Congo, et de la situer au regard du contexte global dans lequel cette dernière s'inscrit. Il s'agit de cerner les caractéristiques de cette gestion, d'identifier les acteurs qui l'animent, leur dynamique et les enjeux auxquels ces derniers doivent faire face. Afin de comprendre «de l'intérieur» notre situation d'étude, nous avons privilégié une méthodologie qui favorise l'établissement de relations de proximité avec les acteurs. Aussi, par souci de pertinence sociale, nous avons déployé des stratégies de collecte qui favorisent la réflexivité des acteurs dans la perspective de stimuler l'appropriation des situations-problèmes qui les concernent. D'autre part, nous avons complété notre cueillette de données avec deux stratégies novatrices qui s'avéraient pertinentes au regard du contexte, notamment la soirée de contes et de l'émission radiophonique à ligne ouverte. Les résultats obtenus nous ont permis de décrire de manière riche et féconde la gestion de l'eau à Mbankana. Il s'agit notamment de la gestion ménagère de l'eau, c'est-à-dire celle qui s'anime au niveau de la famille et de la gestion communautaire de l'eau qui s'instaure au niveau du village. Dans une perspective historique, nous avons pu retracer ce que nous avons appelé la gestion traditionnelle de l'eau. D'autre part, nous avons pu cerner la dynamique des acteurs et reconnaître notamment un étiolement de la mobilisation communautaire qui amoindrit la capacité de la population locale à gérer judicieusement ses ressources en eau. L'exploration des représentations des acteurs des concepts d'« environnement» et de «développement» nous a permis d'approcher une compréhension plus nuancée notamment de leur rapport à la nature, à la vie et à la maladie. Finalement, nous avons pu susciter l'émergence de solutions appropriées au regard du contexte pour améliorer la situation de l'eau à Mbankana. ______________________________________________________________________________ MOTS-CLÉS DE L’AUTEUR : eau, gestion, culture, développement, communauté, République démocratique du Congo.