Publications récentes
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NONLOCAL DISCRETE PROBLEM INVOLVING THE ANISOTROPIC p(k)-CAPILLARITY DIFFERENTIAL OPERATOR
Ismaël Nyanquini, Brahim Moussa, Stanislas OuaroIn this paper, we investigate the existence and multiplicity of so- lutions for a class of nonlocal discrete problems governed by a p(k)-capillarity differential operator in a T -dimensional Banach space. Our technical approach is based on a minimization method combined with adequate variational tech- niques, particularly the mountain pass theorem of A. Ambrosetti and P.H. Rabinowitz and the (S+) mapping theory.
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Human IgG responses to Anopheles gambiae immunogenic salivary proteins in urban and rural populations of Burkina Faso: biomarkers of exposure to malaria vector bites
Michaël Kaboré, Yéri Esther Hien, Dado Jean Noël Koussé, Fatimata Thiombiano, Mireille Ouédraogo, Abdoul Rahamani Nikiema, Enock Ibrango, Nicolas Ouédraogo, Mariama K. Cherif, Sylvain Ilboudo, Toussaint Rouamba and Guillaume Sylvestre SanouBackground Malaria control would be greatly facilitated by the development of new tools for rapidly assessing malaria transmission intensity. In malaria-endemic areas such as Burkina Faso, human populations are frequently exposed to immunomodulatory salivary components injected during mosquito blood feeding. Numerous studies have examined parasite immunity; however, there are few data available on vector immunity as a means of assessing malaria transmission in sub-Saharan Africa. The present study aims to compare IgG-specific response to salivary gland extracts (SGE) of Anopheles gambiae (An. gambiae) in populations living in urban and rural areas in Burkina Faso.
Methods A cross-sectional descriptive study was carried out in two sites, Ouagadougou city and Sapouy village, where blood samples (n = 676) from children (0–15 years) and adults were collected. After An. gambiae salivary prot...
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HIV-1 Serodiscordant Couples in Ndjamena (Chad): Analysis of Behavioral Patterns, Viral Load and Antiretroviral Therapy Adherence
Seïd Idriss Ahmat, Hassan Mahamat Ali, Yeri Esther Hien, Adawaye Chatte, Djamaladine Mahamat Doungous, François Tabsoba, Seïdé Hamid Moussa, Zara Moussa Mahamat, Aly Savadogo, Yves TraoreThe Human Immunodeficiency Virus (HIV) remains a major global public health challenge. By 2022, there were nearly 39.9 million people globally living with HIV, 53% are women and girls. Serodiscordant couples, a couple with one partner positive for HIV, play a critical role in HIV transmission. This is particularly evident in sub-Saharan Africa, where up to 10.90% of couples are serodiscordant, making them a key population for targeted prevention efforts. This study aimed to determine the impact of viral load, antiretroviral therapy (ART) adherence and the behavioral pattern of serodiscordant couple likely to influence HIV transmission. A prospective study was carried out and con- cerned HIV-1 serodiscordant couples. Parameters such as age, frequency of HIV testing, duration of relationship, number of children, social status, and educational level of partners were analyzed. Questionnaires...
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Influence of genetic factors of humans, mosquitoes and parasites, on the evolution of Plasmodium falciparum infections, malaria transmission and genetic control methods: a review of the literature
Seni Nikiema, Issiaka Soulama, Gifty Dufie Ampofo, Moustapha Nikiema, Abdou Azaque Zouré, Salif Sombié, Salam Sawadogo, Nicolas Ouedraogo, Samuel Sindie Sermé, Haffsatou Sawadogo, Raïssa Ily, Guillène Y. N. Tibiri, Djamila O. A. Zouré, Nassandba Julien Yanogo, Farida C. A. Kaboré, Chanolle Tchekounou, Adama Zida, Issoufou Tao, Oumarou Ouedraogo, Dramane Zongo, Florencia Wendkuuni Djigma, Alfred B. Tiono, Sodiomon B. Sirima, Athanase Badolo & Jacques SimporéDespite significant progress, malaria remains a public health problem in many regions, particularly in sub-Saharan Africa. This situation is partly explained by the mosquito’s resistance to insecticides and the emergence of parasite resistance to antimalarial drugs. Indeed, in spite of the various vectors’ controls, insecticide resistance emerges from multi-generational selection and poses worldwide concern. In parallel, artemisinin resistance unfortunately emerged independently in multiple countries in eastern Africa. Since 2014, artemisinin resistance has been observed in 6 countries in Africa and, more concerningly, the evidence from longitudinal molecular surveys in these countries suggests that it is spreading. While phenotypic evidence of treatment failure is still limited, the increasing reports of validated artemisinin resistance mutations are alarming. Unlike the emergence of ar...
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La guerre chez les Moose de Waogdgo (Ouagadougou) Burkina Faso
Simporé LassinaLa guerre chez les Moose de Waogdgo au Burkina Faso était perçue comme une activité noble. L'armée moaaga, bien que fugace, au besoin, se constituait à la hâte. Quelle était la conception de la guerre chez les Moose Waogdgo ? L’objectif de l’étude est de contribuer à une meilleure connaissance de l’histoire militaire des Moose.
La démarche méthodologique a d’abord a impliqué l'utilisation de sources primaires (témoignages oraux) et
secondaires (travaux d'historiens). Ensuite, elle s’est consacrée à une évaluation des sources afin de juger leur crédibilité et leur pertinence. Enfin, elle s'est fondée sur une analyse qualitative et contextualisée des données.
Comme résultats, on retient que l’idéologie de la guerre était profondément ancrée dans la mentalité des Moose.
Les guerres de types variés, étaient déclenchées pour des raisons sociopolitiques et économiques. Les Moose avaient dé...
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Characterization and Evaluation of the Agronomic Suitability of Three Soil Types for Sorghum Production in the Sudano-Sahelian Zone of Burkina Faso
Adama Ilboudo, Daouda Guébré, Harouna Ouédraogo, Aminata Ganeme, Koulibi Fidèle Zongo and Edmond HienDeclining agricultural fertility represent a major challenge to food security in the Sudano-Sahelian areas. In this context, it is essential to cultivate resilient cereals, such as sorghum, whose productivity depends heavily on the physical, chemical, and biological properties of the soil. This study aims to assess soil chemical fertility in order to improve soil management and optimize sorghum production. The spatial distribution of soils was determined using a Digital Elevation Model (DEM) from the ALOS PALSAR radar, with a spatial resolution of 12.5 meters. Soil data were analyzed using R software, applying descriptive statistics and principal component analysis (PCA). The soil prospecting identified three subgroups of soils: Haplic Cambisols located on the upper slope of the glacis, Ferric Lixisols on medium slopes and Gleyic Lixisols at the bottom of the glacis. Soil texture analysi...
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How does community health feature in Global Financing Facility planning documents to support reproductive, maternal, newborn, child and adolescent health and nutrition (RMNAH-N)? insights from six francophone West African countries
Joël Arthur Kiendrébéogo, Orokia Sory, Issa Kaboré, Yamba Kafando, Rosie Steege, Asha S. George, Meghan Bruce KumarBackground
Community health is key for improving Reproductive, Maternal, Newborn, Child, and Adolescent Health and Nutrition (RMNCAH-N). However, how community health supports integrated RMNCAH-N service delivery in francophone West Africa is under-researched.
Objective
We examined how six francophone West African countries (Burkina Faso, Côte d’Ivoire, Guinea, Mali, Niger, and Senegal) support community health through the Global Financing Facility for Women, Children and Adolescents (GFF).
Methods
We conducted a content analysis on Investment Cases and Project Appraisal Documents from selected countries, and set out the scope of the analysis and the key search terms. We applied an iterative hybrid inductive-deductive approach to identify themes for data coding and extraction. The extracted data were compared within and across countries and further grouped into meaningful catego...
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Evaluation of the Specific Growth Rate to Predict the Biogas Production Process in a Mini-Biodigester
Noufou Bagaya, Windé Nongué Daniel Koumbem, Younoussa Moussa Baldé, Sette Diop, Bruno Korgo, Sié KamThe paper proposes an online estimation of biogas production for a household
digester. The specific growth rate of aggregated biomass of a standard chemostat is estimated
from the online measurements of dilution rate and biogas flow rate. That estimation is based
upon usual 1-stage model without additional assumption on the online availability of neither
yield coefficients nor concentrations of biomass or substrate. Next, ADM1 is used, in an
empirical way, to identify yield coefficients. Finally, biomass concentration is estimated from
the 1-stage model equations allowing the reconfirmation of biogas flow rate measurements at
a 4m3 digester in a rural area in Burkina Faso.
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Analyse des rapports entre savoirs techniques paysans et savoirs technico-scientifiques dans les initiatives de développement : cas des projets ICODE et Molopaga dans la Commune rurale de Bama au Burkina Faso
MAGNINI Seindira, SANOU SeydouLa dialectique savoirs techniques locaux et savoirs technico-scientifiques est à l’œuvre dans toute initiative de développement en milieu rural fondée sur la résorption d’une situation d’insatisfaction. L’étude réalisée dans la commune de Bama dans la région des Hauts Bassins au Burkina s’est penchée sur les rapports à la fois complémentaires et conflictuels de ces 2 savoirs. Les discours des acteurs de terrain posent la valorisation des savoirs paysans comme une condition de l’ancrage social des initiatives de développement. Mais dans les pratiques du développement, il est des facteurs qui rendent problématique cette valorisation de ces connaissances dont le principal est que le savoir endogène intègre à la fois le technique, le symbolique et le supranaturel.
Dans ce contexte, la réussite d’un projet tient avant tout à son acceptation sociale qui implique la prise en compte de la dive...
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Impact of Stroke on Quality of Life of Stroke Patients in Ouagadougou, Burkina Faso
Carama EA , SOME P , IDO F , Millogo E , Kyelem MJA and Napon CIntroduction: Stroke is a diagnostic and therapeutic emergency. It causes functional sequelae and the quality of life (QOL) of survivors is often disrupted. The aim of this study was to assess the QOL of stroke survivors after at least three months of evolution.
Patients and Methods: This was a cross-sectional study with prospective data collection, conducted from October 1 to November 30, 2021. The study population consisted of patients aged at least 18 years with a stroke confirmed by brain imaging, seen in consultation after at least three months of evolution as part of their post-stroke follow-up. Quality of life was assessed using the WHOQOL scale.Results: Over the course of the study, 46 patients aged at least 18 years were seen in consultation after at least three months of stroke. The mean age of the patients was 52.8 years. Stroke was ischemic in 56.5% of patients, with a mean...