Lubumbashi, Democratic Republic of the Congo

University of Lubumbashi
Lubumbashi, Democratic Republic of the Congo

The University of Lubumbashi is one of the largest universities in the Democratic Republic of the Congo. It is located in Lubumbashi, the capital city of Katanga province.The campus is located in the northern part of the city, west of the airport.The university was created in 1955 as the official university of Congo and Rwanda-Urundi by the University of Liège and opened in 1956. It was one of the institutions merged into the National University of Zaire in 1971. It was re-established as an autonomous university in 1981 when the National University of zaire was split up.In May 1990 Zaire's government violently suppressed student protests on the campus, killing several students and destroying parts of the campus. Wikipedia.

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Ferriere L.,University of Western Ontario | Lubala F.R.T.,University of Lubumbashi | Osinski G.R.,University of Western Ontario | Kaseti P.K.,University of Lubumbashi
Geology | Year: 2011

Rocks exposed within the uplifted central part of meteorite impact structures come from significant stratigraphic depths, in some cases as much as several kilometers. On Earth, central uplifts are commonly the final and only feature of an impact crater that remains after the rest of the structure is lost to erosion. However, the crater-forming process that results in the formation of intricate features such as central peak and peak rings is poorly understood. Much of our knowledge is based on extraterrestrial observations; as on Earth, there are very few unequivocal examples of impact craters with well-preserved peak and ring morphologies, because of erosion. In this study we describe the ~17-km-diameter Luizi structure (Katanga region, Democratic Republic of Congo), a moderate-sized complex crater, with an intermediate ring (~5.2 km in diameter), and an ~2-km-wide circular central ring around a central depression. For the first time, unique evidence of shock metamorphism, in the form of macroscopic shatter cones and multiple sets of microscopic planar deformation features in quartz and feldspar grains, is described, confirming the meteorite impact origin of the structure. Our observations at Luizi provide insights into the formation of mid-sized impact craters on Earth, adding to the evidence that, in the case of sedimentary target lithologies, structural ring structures within the central uplift may form by the collapse of an unstable central peak. Given the preservation state of the Luizi crater, it cannot be excluded that structural rings may be a common feature for mid-size craters developed in layered target rocks. © 2011 The Geological Society of America.

Arung W.,University of Lubumbashi | Meurisse M.,University of Liège | Detry O.,University of Liège
World Journal of Gastroenterology | Year: 2011

Peritoneal adhesions represent an important clinical challenge in gastrointestinal surgery. Peritoneal adhesions are a consequence of peritoneal irritation by infection or surgical trauma, and may be considered as the pathological part of healing following any peritoneal injury, particularly due to abdominal surgery. The balance between fibrin deposition and degradation is critical in determining normal peritoneal healing or adhesion formation. Postoperative peritoneal adhesions are a major cause of morbidity resulting in multiple complications, many of which may manifest several years after the initial surgical procedure. In addition to acute small bowel obstruction, peritoneal adhesions may cause pelvic or abdominal pain, and infertility. In this paper, the authors reviewed the epidemiology, pathogenesis and various prevention strategies of adhesion formation, using Medline and PubMed search. Several preventive agents against postoperative peritoneal adhesions have been investigated. Their role aims in activating fibrinolysis, hampering coagulation, diminishing the inflammatory response, inhibiting collagen synthesis or creating a barrier between adjacent wound surfaces. Their results are encouraging but most of them are contradictory and achieved mostly in animal model. Until additional findings from future clinical researches, only a meticulous surgery can be recommended to reduce unnecessary morbidity and mortality rates from these untoward effects of surgery. In the current state of knowledge, pre-clinical or clinical studies are still necessary to evaluate the effectiveness of the several proposed prevention strategies of postoperative peritoneal adhesions. © 2011 Baishideng. All rights reserved.

Introduction: The transmission of infectious agents such as the human immunodeficiency virus (HIV), hepatitis B (HBV), hepatitis C (HCV) and syphilis is the greatest threat to transfusion recipient safety. The purpose of this study was to determine the seroprevalence of infectious markers with a view to contributing to transfusion safety by selecting donors. Methods: A retrospective analysis of the medical records of blood donors covering the period 1 January to 31 December 2008 was conducted. The global seroprevalence of HIV, HBV, HCV and syphilis was, respectively, 2.9%, 1.6%, 0.2% and 0.2%. A high seroprevalence was found in the 16-25 and 46-55-year age groups, while there was a high prevalence of syphilis in the 16-25-year age group. Results: The results confirm the presence of infection by hepatitis B in Kamina and provide an initial insight into the circulation of the hepatitis C virus, the HIV virus and syphilis in the blood donor population. Discussion: Rigorous selection and screening procedures among blood donors are needed to ensure transfusion recipient safety. © S.F.S.P.. Tous droits réservés pour tous pays.

Kadima E.,University of Lubumbashi | Delvaux D.,Royal Museum for Central Africa | Sebagenzi S.N.,University of Lubumbashi | Tack L.,Royal Museum for Central Africa | Kabeya S.M.,CNE
Basin Research | Year: 2011

The stratigraphic, paleogeographic and tectonic evolution of the intracratonic Congo Basin in Central Africa has been revised on the basis of an integrated interpretation of gravity, magnetic and reflection seismic data, together with a literature review of papers sometimes old and difficult to access, map compilation and partial reexamination of outcrop and core samples stored in the Royal Museum for Central Africa (RMCA). The Congo Basin has a long and complex evolution starting in the Neoproterozoic and governed by the interplay of tectonic and climatic factors, in a variety of depositional environments.This multidisciplinary study involving 2D gravity and magnetic modeling as additional constraints for the interpretation of seismic profiles appears to be a powerful tool to investigate sedimentary basins where seismic data alone may be difficult to interpret. The tectonic deformations detected in the Congo Basin after the 1970-1984 hydrocarbon exploration campaign in the Democratic Republic of Congo (DRC) have been attributed to crustal contraction and basement uplift at the center of the basin, following a transpressional inversion of earlier graben structures. Two-dimensional gravity and magnetic models run along key seismic lines suggest the presence of evaporite sequences in some of the deeper units of the stratigraphic succession, in the lateral continuity with those observed in the Mbandaka and Gilson exploration wells. The poorly defined seismic facies that led to the previous basement uplift interpretation of the crystalline basement is shown to correspond to salt-rich formations that have been tectonically de-stabilized. These features may be related to vertical salt-tectonics connected to the near/far-field effects of the late Pan-African and the Permo-Triassic compressive tectonic events that affected this African part of Gondwana. © 2011 Musée royal de l'Afrique centrale / Koninklijk Museum voor Midden-Africa. Basin Research © 2011 Blackwell Publishing Ltd, European Association of Geoscientists & Engineers and International Association of Sedimentologists.

Chen L.,Central South University | Chabu J.M.,Central South University | Chabu J.M.,University of Lubumbashi | Jin R.,Central South University | Xiao J.,Central South University
RSC Advances | Year: 2013

Silver/carbon (Ag/C) core-shell nanowires with different thickness of shell were synthesized by a hydrothermal method and used as templates for fabricating gold nanoparticle-decorated Ag/C (Ag/C/AuNPs) nanowires. The Ag/C/AuNPs nanowires were characterized by transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM), scanning electron microscopy (SEM), and energy-dispersive X-ray (EDX). It was found that the number density and particle size of Au nanoparticles can be tuned by varying the concentration of Au precursor. Surface-enhanced Raman scattering (SERS) measurements showed that single Ag/C/AuNPs nanowire exhibited strong SERS effect. Rhodamine 6G (R6G) molecules, with an extremely low concentration (1.0 × 10-11 M), were readily detected using single Ag/C/AuNPs nanowires. Detection of melamine molecules at concentrations as low as 1.0 × 10-7 M was used as an example to show the possible application of such Ag/C/AuNPs nanowires. In addition, the effect of benzoic acid on the detection of melamine was also investigated. It was found that the SERS spectrum profile and intensity of melamine is very sensitive to the presence of benzoic acid. © 2013 The Royal Society of Chemistry.

Abel Ntambue M.L.,University of Lubumbashi | Francoise Malonga K.,University of Lubumbashi | Dramaix-Wilmet M.,Free University of Colombia | Dramaix-Wilmet M.,Center Scientifique Et Medical Of Luniversite | And 2 more authors.
BMC Pregnancy and Childbirth | Year: 2012

Background: The use of maternal health services, known as an indirect indicator of perinatal death, is still unknown in Lubumbashi. The present study was therefore undertaken in order to determine the factors that influence the use of mother and child healthcare services in Lubumbashi, Democratic Republic of the Congo.Methods: This was transversal study of women residing in Lubumbashi who had delivered between January and December 2009. In total, 1762 women were sampled from households using indicator cluster surveys in all health zones. Antenatal consultations (ANC), delivery assisted by qualified healthcare personnel (and delivery in a healthcare facility) as well as postnatal consultations (PNC) were dependent variables of study. The factors determining non-use of maternal healthcare services were researched via logistic regression with a 5% materiality threshold.Results: The use of maternal healthcare services was variable; 92.6% of women had attended ANC at least once, 93.8% of women had delivered at a healthcare facility, 97.2% had delivered in the presence of qualified healthcare personnel, while the rate of caesarean section was 4.5%. Only 34.6% postnatal women had attended PNC by 42 days after delivery. During these ANC visits, only 60.6% received at least one dose of vaccine, while 38.1% received Mebendazole, 35.6% iron, 32.7% at least one dose of SulfadoxinePyrimethamine, 29.2% folic acid, 15.5% screening for HIV and 12.8% an insecticide treated net.In comparison to women that had had two or three deliveries before, primiparous and grand multiparous women were twice as likely not to use ANC during their pregnancy. Women who had unplanned pregnancies were also more likely not to use ANC or PNC than those who had planned pregnancies alone or with their partner. The women who had not used ANC were also more likely not to use PNC. The women who had had a trouble-free delivery were more likely not to use PNC than those who had complications when delivering.Conclusion: In Lubumbashi, a significant proportion of women continue not to make use of healthcare services during pregnancy, as well as during and after childbirth. Women giving birth for the first time, those who have already given birth many times, and women with an unwanted pregnancy, made less use of ANC. Moreover, women who had not gone for ANC rarely came back for postnatal consultations, even if they had given birth at a healthcare facility. Similarly, those who gave birth without complications, less frequently made use of postnatal consultations. As with ANCs, women with unwanted pregnancies rarely went for postnatal visits.In addition to measures aimed at reinforcing women's autonomy, efforts are also needed to reinforce and improve the information given to women of childbearing age, as well as communication between the healthcare system and the community, and participation from the community, since this will contribute to raising awareness of safe motherhood and the use of such services, including family planning. © 2012 Ntambue et al.; licensee BioMed Central Ltd.

Lutandula M.S.,University of Lubumbashi | Maloba B.,CAMEC Group
Journal of Environmental Chemical Engineering | Year: 2013

In the Katanga province of the Democratic Republic of Congo (DRC), effluents from flotation of oxidised ores of copper and cobalt are stored in settling ponds in view separation of tailings and the mill wastewaters, which are sent in the rivers. Tailings consist of the gangue minerals accompanied by the uncovered metals of interest. In some cases, tailings may contain copper and cobalt to concentrations that can be economically recovered. The present research aims at recovering copper and cobalt through reprocessing of tailings from flotation of oxidised ores of copper and cobalt achieved at the Kambove Concentrator (DRC). It focuses on the determination of the reagents' dosage that enables obtaining the highest recovery of copper (44.80%) and cobalt (88.30%) through flotation of the studied tailings. Based on both the achievable recovery of the metals of interest and the concentrate grade (3.31% Cu and 2.22% Co), it was concluded that the reprocessing of tailings from the Kambove Concentrator through flotation appears to be an attractive practice because it could enable minimising the footprint of the mineral processing industry on the environment. It could also contribute to the resources conservation through the recovery of metals from the minerallurgical processes wastes. © 2013 Elsevier Ltd. All rights reserved.

Kyungu A.K.,University of Lubumbashi
Global Health Promotion | Year: 2013

This article presents an ethnographic study of the pseudonymous Saint Amand Hospital in Lubumbashi (Democratic Republic of Congo) and of the way in which struggles for control of the hospital's resources contributed to shape certain practices that were damaging to the institution. We examine how, following the disengagement of both the State and a large bankrupt mining enterprise, the 'atypical' governance of the hospital and the institutional instability it generated led to professional vulnerability among care providers. We also look at how, in turn, this situation exacerbated the vulnerability of the helpless and uneducated patients attending that hospital. © The Author(s) 2012.

Shengo L.,University of Lubumbashi | Mutiti W.,University of Lubumbashi
International Journal of Environmental Science and Technology | Year: 2016

Established and emerging technologies for treatment of flotation wastewaters are compared and discussed in the context of their applicability during the management of wastewaters from Cu–Co ores processing through flotation in the Katanga province of the Democratic Republic of Congo. The effects from water recycling on water quality and flotation performance are briefly presented in parallel. The ore processing schemes and the wastewater management practices at two operational concentrators are illustrated as study cases and their peculiarities outlined. A reference to a copper concentrator in a nearby Zambia is addressed for comparative purpose. Based on analysis of the findings, the clarification, bio-treatment inside the tailing ponds or the use of constructed wetlands as polishing stage prior to water reuse are suggested as feasible treatment approaches in view improving the management practice of flotation wastewaters during the dressing of copper ores in the Katanga province. © 2016, Islamic Azad University (IAU).

Muteya M.M.,University of Lubumbashi
The Pan African medical journal | Year: 2013

Tetanus is still a public health problem in developing countries including the Democratic Republic of Congo. The objective of this study was to determine the prognosis of patients with tetanus admitted in the Intensive Care Unit (ICU) of Provincial Hospital Jason Sendwe, Lubumbashi, DR Congo. This is a descriptive study which collected information from registers and medical records of patients admitted for tetanus in the ICU of Jason Sendwe Hospital, between January 2005 and December 2009. We calculated the parameters of position, dispersion as well as frequencies. We used the test of independent association of prognosis (death versus survival). Tetanus constituted 2.1% of admissions in the ICU during the 5-year period. The average age of patients was 39.38 ± 17; majority of patients were males (95.5%). The majority of patients lived the townships of Kampemba (27.3%), Kenya (22.7%), and Annexe (18.2%). All patients presented the generalized form of the infection. The door of entry was detectable in 71.5% of cases, localized mainly to the lower limbs (61.9%). The average length of stay was 11.29 ± 11.39 days. Mortality was observed in 52.4% of cases. This mortality was statistically significant in patients aged more than 40 years (p=0.029) but not not related to the length of stay (p=0.080) nor the location of point of entry(p=0.28). In our environment the prognosis of tetanus remains severe. This disease is still frequent in the city of Lubumbashi; sensibilisation of population on preventive strategies as well as setting up appropriate structures for better management of cases is required.

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