Author(s) :

Ndumba Don Raymond, Ngumba Ngumba Victoire, Ngimbi Ngimbi Jacques, Musianga Siyum Steeve, Mboyo Bokele Julien, Lakubu Esas Patrick, Ndumba Dadou Labem, Nguya Mata Job.

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Le but du présent travail est de faire une étude comparative sur la géologie, la pétrographie, la minéralogie et la cartographie numérique des roches phosphatées de gisements de Kanzi et de Mvuangu. Le microscope pétrographique à lumière polarisée et le logiciel QGIS version 3.6 ont été utilisés. Les résultats obtenus sur base des données de terrain et les analyses de laboratoire indiquent que sur le plan pétrographique, la roche de Kanzi a une structure microgrenue (calcédoine) et grenue alors que celle de Mvuangu est essentiellement constituée par des grains et galets de quartz. Du point de vue minéralogique, ces roches sont constituées principalement de la collophanite mais aussi de l’hématite, de la Kaonite et de l’Illite. La mise valeur de ces roches phosphatées à travers la création d’une industrie locale pour la production des engrais phosphatés au regard de l’importance de ces gisements permettrait de booster le développement de l’agriculture en République démocratique du Congo et dans la sous-région tout en contribuant à la création d’emplois, sachant bien que l’exploitation minière est l’une des principales sources d’emplois formel en Afrique.

No. of Downloads :

1

Author(s) :

Koto-Te-Nyiwa Ngbolua, Guillain Bokoko Bikoko, Gérald Eya Matangelo Eloko, Jean Libima Mokolo, Félicien Kandolo Tshimungu, Marie-Claire Ohambe Omanyondo, Monizi Mawunu.

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In developing countries, under-immunisation and high vaccine drop-out rates remain a major concern across all levels of the healthcare system. This study aimed to identify the underlying factors that contribute to the abandonment of vaccination by parents or guardians of children eligible for immunisation. Using a quantitative case-control design, the study compared caregivers of children aged 6 to 59 months who dropped out of the vaccination program (cases) with those whose children followed the vaccination schedule consistently (controls), within a population of 6,152 children in the Mbandaka health zone. Data were collected through structured questionnaires and processed using Excel 2010 and SPSS 2025. The findings revealed that being in the case group was strongly associated with vaccine drop-out (HR=2.53), as well as belonging to a medium-income household (HR=1.84), being in a polyandrous union (HR=2.92), having illiterate parents (HR=6.04), and residing in the central antenna zone (HR=1.93). These results highlight the urgent need for the health zone to reinforce awareness campaigns targeting parents and decision-makers and to enhance vaccine distribution in remote areas to reduce social inequalities in immunisation coverage.

No. of Downloads :

9

Author(s) :

Mazaba Mata Justin, Kunda Motema Charisme, Mbongopasi Ekeni Bertine.

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This article examines the factors associated with the non-observance of the vaccination calendar for Penta 3 and Var 2 vaccines in children aged 0 to 23 months in the N'djili health zone. Through a descriptive and analytical study, we have identified various elements influencing parents' membership with vaccination recommendations, in particular socio-economic, cultural factors, and linked to access to health services. The results highlight the importance of rigorous monitoring and an evaluation of vaccination programs to improve vaccination coverage and reduce the risk of vaccination preventable diseases.

No. of Downloads :

12

Author(s) :

Dinsodi Makelele Robert, Mukandu Basua Babintu Leyka, Nswele Ilundu Odon.

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La zone de santé de Kikwit-Sud, comme beaucoup d’autres zones de santé de la République Démocratique du Congo, fait face à des défis majeurs en matière de gestion des déchets biomédicaux. Les structures sanitaires, publiques et privées, sont souvent mal équipées pour gérer les déchets générés. Elles font face à des problèmes tels que l’insuffisance des infrastructures de collecte et de stockage, le manque de formation et de sensibilisation du personnel, l'absence de plans de gestion structurés, ainsi que la non-application des directives nationales et internationales en matière de gestion des déchets biomédicaux. Cette étude transversale d’approche quantitative à visée analytique menée auprès des 263 prestataires de soins sélectionnés au moyen de l’échantillonnage probabiliste, avait pour but d’identifier les déterminants liés à la mauvaise gestion des déchets biomédicaux dans les structures sanitaires étatiques de la zone de santé Kikwit-sud. Les résultats de cette étude ont révélé que 45,2% des prestataires enquêtés ont l’âge compris entre 42-53 ans, 63,1% sont des femmes contre 36,9% des hommes. La majorité, soit 96,2% n’ont pas encore reçu la formation sur la gestion des déchets biomédicaux. The Kikwit-Sud health zone, like many other health zones in the Democratic Republic of Congo, faces major challenges in biomedical waste management. Public and private health facilities are often ill-equipped to manage the waste they generate. They face problems such as inadequate collection and storage infrastructures, lack of staff training and awareness-raising, absence of structured management plans, and non-application of national and international directives on biomedical waste management. The aim of this cross-sectional study was to identify the determinants of poor biomedical waste management in state-run health facilities in the Kikwit-sud health zone, using a quantitative, analytical approach based on 263 healthcare providers selected by means of probability sampling. The results of this study revealed that 45.2% of the providers surveyed were aged between 42 and 53, 63.1% were women and 36.9% men. The majority (96.2%) have not yet received training in biomedical waste management.

No. of Downloads :

9

Author(s) :

Lokale Lohose John, Bapidia Nzengu Samuel, Ndjoo Shongo Benjamin, Mutumbi Abeli Franck, Ntoto Kunzi Bernard.

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La vaccination est l’un des moyens les plus efficaces pour prévenir la mortalité, la morbidité et les complications liées aux maladies infectieuses chez les enfants. Dans les années 1970, environ cinq millions d’enfants mouraient chaque année de maladies évitables, avec un taux de couverture vaccinale inférieur à 5 %. En réponse, l’OMS a mis en place en 1974 le Programme Élargi de Vaccination (PEV), ciblant six maladies : diphtérie, tétanos, coqueluche, poliomyélite, rougeole et tuberculose. Cette étude, de nature quantitative et descriptive, vise à identifier les facteurs associés aux occasions manquées de vaccination de routine dans les zones couvertes par l’Antenne du PEV de Tshumbe. La collecte de données a été réalisée par des interviews semi-structurées. Les résultats révèlent une forte association entre l’éducation sanitaire et l’abandon de la vaccination (OR = 8,98 ; p < 0,0001). Le risque d’abandon est neuf fois plus élevé chez ceux qui n’ont pas bénéficié d’éducation sanitaire. L’instabilité du personnel de santé (OR = 0,49 ; p = 0,0075) et la profession des parents (OR = 0,51 ; p = 0,0187) sont également des facteurs influents. Ces résultats soulignent l’importance de renforcer l’éducation sanitaire et de stabiliser le personnel médical pour améliorer la couverture vaccinale dans les communautés concernées. Vaccination is one of the most effective means of preventing mortality, morbidity, and complications related to infectious diseases in children. In the 1970s, around five million children died each year from preventable diseases, with a vaccination coverage rate below 5%. In response, the WHO launched the Expanded Programme on Immunization (EPI) in 1974, targeting six diseases: diphtheria, tetanus, pertussis, poliomyelitis, measles, and tuberculosis. This study, which is quantitative and descriptive in nature, aims to identify the factors associated with missed opportunities for routine vaccination in areas covered by the Tshumbe EPI branch. Data were collected through semi-structured interviews. The results show a strong association between health education and vaccination dropout (OR = 8.98; p < 0.0001). The risk of dropout is nine times higher among those who did not receive health education. Instability among healthcare personnel (OR = 0.49; p = 0.0075) and parents’ occupations (OR = 0.51; p = 0.0187) are also influential factors. These findings highlight the importance of strengthening health education and stabilizing medical personnel in order to improve vaccination coverage in the affected communities.

No. of Downloads :

9

Author(s) :

Lilanga Sombola Daudet, Mavika Makaya Chimene , Boone Imbolo Jean Michel, Diebo Miawakana Joseph, Katshaka Katumbayi Elie-Florent.

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The Congolese tax system is self-liquidating, meaning that the taxpayer freely declares his taxable income and pays the amount due. By presumption, the tax administration recognizes the sincerity of the declaration because it serves as a basis for determining the tax owed by the taxpayer. The tax audit makes it possible to verify the sincerity or accuracy of the declaration, by comparing the declared income in relation to existing income. The consequence of the tax audit leads to two results, namely: - Acquittal: if the auditor was unable to detect the discrepancy between the declared incomes compared to the existing income during the tax audit. - Adjustment: if the verifier manages to demonstrate the gap between the declared income and the actual income. Tax auditors generally say that tax audits in small businesses often result in recovery and that it is difficult for a company to escape. Generally speaking, taxpayers are experiencing a situation of widespread recovery. Through this work, our concern is to know why tax control in small businesses generally leads to a result, tax adjustment. We will analyze the way in which tax audits take place in small businesses to identify weaknesses and propose the solution by suggesting a new method with the aim of reversing this trend of generalization of tax adjustment.

No. of Downloads :

7

Author(s) :

Bisimwa Ciregereza Emmanuel, Lukoki Luyeye Félicien , Milau Empwal Fils, Belesi Katula Honoré.

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In light of the assessment of the socio-demographic impact of deforestation in Kahuzi-Biega National Park and its surroundings in Kabare chiefdom in South Kivu (DR Congo), this study contributed by highlighting the actors, informal exploiters of forest ecosystems in this area (park and chiefdom). 59.8% of the population of Kabare chiefdom is concentrated around the park where it exerts informally, a strong pressure on forest formations; through the anthropogenic activities of deforestation.

No. of Downloads :

10

Author(s) :

Kasanda Kabulo, Kadima Tshisekedi, Kabamba Mueu Sefu.

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In the Democratic Republic of Congo and many developing nations, undiagnosed or inadequately diagnosed bacterial infections continue to be a significant contributor to mortality rates. Nuclear medicine employs rapid and precise techniques utilizing radiopharmaceutical kits, which are essential for the diagnosis of deep infections. The main goal of this study was to make technetium-99m (99mTc)-labeled ciprofloxacin and test its stability. The department of nuclear medicine at Kinshasa University Clinics planned to use this kit to diagnose infection foci. Ciprofloxacin is radiolabeled by combining 20 mCi of 99mTc with a solution of ciprofloxacin (CPF) at a concentration of 15 mg/mL, 200 mg of ascorbic acid, and 10 mL (0.2 mg/mL) of freshly prepared stannous chloride (SnCl.2HO) in a 2N hydrochloric acid solution at pH 5.8. Thin layer chromatography (TLC) was employed alongside the radiochromatogram to assess radiochemical purity and stability at room temperature. The radiochemical purity of the product exceeded 98%, and its stability after 4 hours was 95%. The preparation method for 99mTc-CPF is straightforward and demonstrates high labeling efficiency. The 99mTc-CPF preparation method may function as an effective radiopharmaceutical kit for imaging infectious foci.

No. of Downloads :

8