The preservation of agrobiodiversity is widely regarded as a cornerstone of sustainable agri-food systems, yet dominant narratives often portray crop diversity in smallholder farming as declining under pressures of intensification and market integration. Less attention has been given to how farmers themselves perceive, manage, and actively shape agrobiodiver sity over time. Drawing on political ecology and farmer-agency perspectives within a broader socio-ecological framework, this study examines patterns of crop species and varietal diversity across eight villages in Burkina Faso and Ghana. A mixed-methods approach combining surveys with 320 respondents and participatory focus group tools—including matrix scoring, four-square diagrams, and historical timelines—was used to analyze both quantitative trends in agrobiodiversity and farmers’ lived experiences. Results show that agrobiodiver...

Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae are major contributors to antimicrobial resistance worldwide. Data from Burkina Faso remain limited, despite growing concerns about multidrug resistance in urinary pathogens. We conducted a retrospective cross-sectional study using microbiological records from three medical laboratories in Ouagadougou between January 2018 and December 2022. All urine culture isolates of E. coli and K. pneumoniae were included. Patient demographics, hospitalization status, and antimicrobial susceptibility profiles were extracted. ESBL production was confirmed phenotypically using the double disk synergy test. Statistical analyses were performed to compare prevalence and resistance patterns across species and patient groups. A total of 4,234 isolates were analyzed, comprising 3,084 E. coli (72.8%) and 1,...

ntroduction : La rage, zoonose mortelle mais évitable, reste un défi majeur de santé publique au Burkina Faso. Objectif : Analyser les tendances épidémiologiques (2013-2023) et identifier les lacunes des systèmes de surveillance et de contrôle. Méthodes : Une étude à méthodes mixtes combinant une analyse rétrospective des données de surveillance (2013– 2023) et une enquête qualitative transversale par entretiens auprès de 20 acteurs clés (soignants, vétérinaires, responsables) a été conduite. Résultats : L'analyse révèle 555 cas humains et 2 108 animaux confirmés. Une augmentation annuelle significative des cas humains est observée (coefficient de Poisson=0,08 ; p<0,01), avec un pic d'incidence à 0,53 pour 100 000 habitants en 2022. Cette tendance contraste avec l'absence d'évolution significative des cas animaux, suggérant une sous- déclaration massive. Les obstacles qualitatif...

Porcelain is a ceramic product formulate from a typical triaxial mixture: clay and kaolin; quartz; feldspar. The use of three mineral materials from Burkina Faso in the formulation of porcelains has been studied. The characterization results showed that the clay « NONG » contains kaolinite (62%), illite (18%), quartz (17%) and rutile (1%). The pegmatite « PEG » contains albite (17%), muscovite (44%) and quartz (34%). The sand « SAB » is mainly composed of quartz. Formulation of traditional hard porcelain generally requires 50% kaolin, 25% silica and 25% feldspar. Some samples were shaped by casting into porous molds and sintered at temperatures ranging from 1200 °C to 1300°C. During firing, clay « NONG » has a role in mullite recrystallization and the formation of a vitreous phase. « PEG » contributes to the quantity and behavior of the liquid phase at temperatures above 1050 °C. It cont...

Listeriosis is a foodborne illness that can lead to bacterial meningitis. In this paper, we propose and investigate a model of co-infection involving both listeriosis and bacterial meningitis, originating from ready-to-eat food products. We begin by examining the patterns of each disease individually, as well as the dynamics of their co-infection. From our global co-infection model, we derive separate models for bacterial meningitis and listeriosis. Each model is analyzed in terms of the existence of equilibrium points, threshold dynamics parameters, stability results, sensitivity analysis, and the presence of backward and forward bifurcations. Finally, we present numerical simulation results to support our theoretical findings.

In this work, we prove some properties of the set of solutions for some integrodifferential equations called Kneser's property.

Rice stem borers constitute a serious threat to rice production in Burkina Faso. Trials were conducted in 2022 and 2023 at Bama and Karfiguéla, western Burkina Faso. The study aimed at assessing the biodiversity associated with rice Lepidoptera stem borers when using biological insecticides for the control of these insect pests. Methods: A randomized completely block design with six treatments and four replications was used. Treatments included two botanical insecticides (Azadirachta indica, Jatropha curcas), two entomopathogens (Bacillus thuringiensis, Trichoderma sp.) followed by an untreated control and, a positive control (deltamethrin). Six insecticide applications per treatment were carried out at a frequency of 14 days each, starting on the 15th day after transplanting (DAT). Oil extracts from A. indica, J. curcas, and B. thuringiensis, as well as deltamethrin, were applied...

Background: The keloids scar is a skin scarring pathology with a higher frequency in the black population. Several genetic polymorph-isms, including those of transforming growth factor receptors, have been identified as probable susceptibility genes. This study aimed tocharacterize the polymorphisms of TGF-βRI, TGF-βRII and identify risk factors associated with keloid scars in Burkina Faso.Methods: This was a cross-sectional study that included 141 subjects with keloids and conducted from April 2021 to April 2022.Genomic DNA was extracted using the “PureLink TM Genomic DNA Mini kit”. Genotyping of TGF-βRI rs111854391, rs121918710,and TGF-βRII rs104893807, rs28934568 polymorphisms was performed using real-time PCR. Results were considered statisticallysignificant at p<0.05.Results: The average age of the study population was 34 ± 15 years and O Rhesus positive blood group (O+) was predomi...

The pollution model based on the Kazhikhov-Smagulov equations, a set of equations in fluid mechanics and environmental modeling, is thoroughly investigated numerically in this paper. We investigate the intricate behavior of pollution in a single spatial dimension using a Godunov-type method, which is renowned for its ability to capture discontinuities and shocks effectively. Our 1D simulations illustrate frequently overlooked facets of mixture phenomena, highlighting the model’s complex and varied dynamics. Numerical experiments illustrate the relevance of the proposed numerical procedure.

Extensive livestock farming plays an important socioeconomic role in the Sahel region but remains vulnerable due to the scarcity of forage resources. This study investigated how connectivity between a managed pastoral zone and a protected area contributes to enhancing forage resource availability and rangeland quality. Methods: A stratified sampling design was adopted to assess floristic diversity, forage productivity, and rangeland quality in two land-use types, notably a protected area and a pastoral zone that includes young and old fallows, in Burkina Faso. To assess species forage values, interviews and field observations were used. Floristic diversity was similar between the pastoral zone and the protected area (p > 0.05) due to the homogenization of herbaceous vegetation structure and composition in the two land-use types. The two connected landuse types were dominated by the Poace...