Numéro actuel

Volume:5 Issue:2 Feb' 2026

Facteurs explicatifs de l’abandon du calendrier vaccinal des enfants âgés de 0 à 11 mois à Kinshasa : Modèle de la régression de Cox

Abstract

The persistence of vaccine-preventable diseases in urban African settings, particularly in Kinshasa, highlights an insufficient control of the determinants of immunization dropout despite the well-established effectiveness of vaccination programs. However, few local studies have applied robust analytical approaches, especially survival models, to quantify both the risk and timing of dropout, thereby revealing an important scientific gap. This study aims to identify the explanatory factors associated with immunization schedule dropout among children aged 0 to 11 months in Kinshasa. A retrospective case-control analytical study was conducted, supported by a cluster survey, involving 292 participants (146 cases and 146 controls). Data were collected using a structured questionnaire administered to caregivers and analyzed using Cox regression to estimate hazard ratios. The results indicate that children in the case group had a significantly higher risk of dropout (HR = 2.53; 95% CI: 1.84– 3.47). Low household income (<1 USD/day) increased this risk by 84% (HR = 1.84; 95% CI: 1.26–2.69), while belonging to the central vaccination catchment area increased the risk by 93% (HR = 1.93; 95% CI: 1.39–2.70). Parental lack of education emerged as the most influential factor (HR = 6.04; 95% CI: 4.19–8.69). Additionally, high proportions of dropout were observed among children of illiterate mothers (89.6%), those living in Masina I health zone (45.2%), and those from low-income households (30.6%). In contrast, distance to the vaccination site was not significantly associated with dropout. These findings indicate that immunization dropout in Kinshasa is primarily driven by socioeconomic, educational, and organizational factors, underscoring the need to strengthen targeted community-based interventions and improve household living conditions to enhance adherence to vaccination programs.

Caractérisation de la qualité physico-chimique des effluents et sédiments de carrière de la société CARRIGRES à Kinsuka Pêcheur dans la ville de Kinshasa (RD Congo)

Abstract

Quarry exploitation has intensified due to urban expansion and growing demand for construction materials in the city of Kinshasa in the Democratic Republic of Congo. The aim of this study is to characterize the physicochemical quality of effluents and sediments from the CARRIGRES quarry, as well as the water of the Congo River at the discharge point, in order to highlight the influence of effluent discharge from this activity on the quality of the receiving environments. The quality of effluents and sediments was monitored through in situ sampling for some parameters and laboratory testing for other physicochemical parameters between February and October 2025. In the laboratory, the parameters of interest were determined using an X-ray fluorescence spectrophotometer and a UV spectrophotometer. The results obtained show that the concentration of certain physicochemical parameters in the effluents and sediments from the CARRIGRES quarry are inconsistent with the standard values set by the WHO, with the direct consequence of a deterioration in the physicochemical quality of the water in the Congo River for certain parameters. Among the most worrying parameters are turbidity (effluent discharge = 183.4±2.8 UNT, sump = 182.1±1.1 UNT and raw effluent = 161.5±1.1 UNT), biochemical oxygen demand (sump = 69.02±0.21 mg/L and raw effluent = 63.05±0.14 mg/L) and phosphate ions (discharge = 3.41±0.03 mg/L, Sump = 3.17±0.07 mg/L and raw effluent = 2.89±0.03 mg/L), reflecting a significant load of suspended solids and substances likely to alter the ecological balance of the receiving environment. Analysis of heavy metals reveals a notable accumulation of certain heavy metals, in particular Pb, Al, Cr, and Ni. The raw effluents from the sump and discharges are biodegradable and had biodegradability indices of between 1,5 and 1,6. The optimization and/or installation of a suitable treatment system at CARRIGRÈS will help to reduce the loads of suspended solids, nutrients, and heavy metals before discharge.

Gouvernance provinciale et mise en œuvre des politiques publiques en contexte de décentralisation : Analyse du programme du gouvernement du Bandundu sous Richard Ndambu Wolang (2007–2011)

Abstract

The 2006 Constitution established an ambitious decentralization process in the Democratic Republic of Congo, granting provinces the responsibility to plan and implement public policies adapted to their local realities. The period 2007-2011 corresponds to the first experience of provincial governance resulting from this new institutional framework. This study aims to analyze the relevance, internal coherence, and feasibility of the program of the Provincial Government of Bandundu led by Governor Richard Ndambu Wolang (2007-2011), examining it as an emblematic case of the challenges of Congolese decentralization. The article adopts a qualitative approach based on documentary analysis. The corpus examines legal texts (2006 Constitution, Law No. 08/012 of July 31, 2008), administrative archives of the provincial government, institutional reports, and scientific literature on decentralization and public policies in sub-Saharan Africa. Thematic content analysis was conducted to identify the program's strategic axes and assess their coherence. The analysis reveals an ambitious and multisectoral program structured around four pillars (infrastructure development, social sectors, agricultural revival, and governance). Its internal coherence appears globally satisfactory. However, its relevance is compromised by a significant gap between stated objectives and the actual institutional, human, and financial capacities of the province. The program suffers from a lack of costing of actions, explicit monitoring and evaluation mechanisms, and a clear resource mobilization strategy. The study concludes that the Bandundu provincial program, while reflecting a structured political vision, illustrates the limits of public planning in a context of nascent decentralization. It highlights the gap between the ambitions of new provincial executives and the structural constraints inherited from decades of centralization and conflict.

Analyse des avantages comparés et durables des systèmes d’adduction d’eau potable par énergie gravitationnelle et motorisée dans la Province du Kwango, République démocratique du Congo

Abstract

In a context of energy transition and limited basic energy infrastructure in the Democratic Republic of the Congo, it is relevant to conduct this study in order to encourage rural users to prioritize gravitational energy, where possible, to supply drinking water to communities facing water scarcity. This study, conducted in the Popokabaka territory in Kwango Province, aims to compare three water supply systems gravitational, hydraulic (Kaplan turbine), and thermal (diesel generator) over the period 2017 to 2025, in order to identify the most sustainable solutions for rural areas. The analysis is based on a comparative methodology integrating operating costs, standardized energy performance, and a SWOT evaluation, using data provided by technicians from user associations. For each category, a specific case was selected based on data availability, as some systems are no longer operational. The results show that the gravitational system, with a monthly cost of $144, stands out for its low environmental footprint and technical simplicity, making it the most viable option when topographical conditions are favorable. The hydraulic system represents a relevant alternative in steep areas, despite higher costs ($372/month) and greater complexity. In contrast, the thermal system appears economically and environmentally disadvantageous ($769.56/month), due to its dependence on fuel and greenhouse gas emissions. It is recommended to prioritize gravitational solutions whenever natural conditions permit and to integrate local water resources into territorial energy planning. Data availability constraints were observed, as the study was limited to Popokabaka, Kasongo-Lunda, and Kahemba. Further research is encouraged

Sr No.	Article Information
1	Facteurs explicatifs de l’abandon du calendrier vaccinal des enfants âgés de 0 à 11 mois à Kinshasa : Modèle de la régression de Cox Author(s): Ngoyi Kankiesa Nestor, Bapidia Nzengu Samuel, Kafinga Luzolo Emery, asandi Milonda Alphonse. View Abstract Page No : 420-431 DOI: 10.59228/rcst.026.v5.i2.255 Download pdf
2	Caractérisation de la qualité physico-chimique des effluents et sédiments de carrière de la société CARRIGRES à Kinsuka Pêcheur dans la ville de Kinshasa (RD Congo) Author(s): Samuel Kabengele Mayimbi, Willy Swana Lusasi , Fils Empwal Milau, Michel Lufuluabo Kapembo, René Valu Gizanga. View Abstract Page No : 432-449 DOI: 10.59228/rcst.026.v5.i2.256 Download pdf
3	Impact de la commercialisation des poissons immatures et adultes sur la gestion durable de la diversité ichtyologique dans le Pool Malebo (Fleuve Congo), Kinshasa, République Démocratique du Congo Author(s): Yves Aseke Lukuke, Cush Luwesi Ngonzo, Godé Bosongo Bola, Génie-Spirou Kiala Lutonadio, Patience Mpia Ngelinkoto, Pascal Masawula Kazwenga, Marcel Adoko Bagala, Landry Nzamipiele Nkaba, Raphael Muamba Tshimanga. View Abstract Page No : 450-468 DOI: 10.59228/rcst.026.v5.i2.257 Download pdf
4	Inactivation photocatalytique de Escherichia coli par une suspension de TiO₂ sous irradiation UV-C à 254 nm Author(s): Fifi Mulangala Muderhwa, Antoine Kimpanza Mbongo, Prince Bulola Iyambe, Pascal Maziana Disadisa, Denis Bilasi Musengele, Trésor Ndonganzadi, Joseph K’Ekuboni Malongwe, Jérémie Lunguya Muswema, Omer Muamba Mvele, Gracien Bakambo Ekoko. View Abstract Page No : 469-482 DOI: 10.59228/rcst.026.v5.i2.258 Download pdf
5	Gouvernance provinciale et mise en œuvre des politiques publiques en contexte de décentralisation : Analyse du programme du gouvernement du Bandundu sous Richard Ndambu Wolang (2007–2011) Author(s): Marcel Batshiaka Barkoni. View Abstract Page No : 483-488 DOI: 10.59228/rcst.026.v5.i2.259 Download pdf
6	Evaluation des d-dimeres, international normalised ratio et ferritine au cours de la tuberculose dans la ville de Lubumbashi Author(s): Arold Fazili, Davina NGONGA, Armand ABASI, Gradine Mujinga. View Abstract Page No : 489-498 DOI: 10.59228/rcst.026.v5.i2.260 Download pdf
7	Analyse des avantages comparés et durables des systèmes d’adduction d’eau potable par énergie gravitationnelle et motorisée dans la Province du Kwango, République démocratique du Congo Author(s): Baby le vent Kabidi Banunginikwau, Génie-Spirou Kiala Lutonadio1 & , Luwesi Ngonzo Cush. View Abstract Page No : 499-506 DOI: 10.59228/rcst.026.v5.i2.261 Download pdf

Numéro actuel

Volume:5 Issue:2 Feb' 2026

Facteurs explicatifs de l’abandon du calendrier vaccinal des enfants âgés de 0 à 11 mois à Kinshasa : Modèle de la régression de Cox

Abstract

Caractérisation de la qualité physico-chimique des effluents et sédiments de carrière de la société CARRIGRES à Kinsuka Pêcheur dans la ville de Kinshasa (RD Congo)

Abstract

Impact de la commercialisation des poissons immatures et adultes sur la gestion durable de la diversité ichtyologique dans le Pool Malebo (Fleuve Congo), Kinshasa, République Démocratique du Congo

Abstract

Inactivation photocatalytique de Escherichia coli par une suspension de TiO₂ sous irradiation UV-C à 254 nm

Abstract

Gouvernance provinciale et mise en œuvre des politiques publiques en contexte de décentralisation : Analyse du programme du gouvernement du Bandundu sous Richard Ndambu Wolang (2007–2011)

Abstract

Evaluation des d-dimeres, international normalised ratio et ferritine au cours de la tuberculose dans la ville de Lubumbashi

Abstract

Analyse des avantages comparés et durables des systèmes d’adduction d’eau potable par énergie gravitationnelle et motorisée dans la Province du Kwango, République démocratique du Congo

Abstract