We consider a reaction-diffusion model with homogeneous Neumann boundary conditions to describe fish and zooplankton dynamics. We also introduce two important elements: fishing and cannibalism effect in the dynamics using a non linear functional responses. In the mathematical analysis, global attractor, persistence conditions and the stability of all equilibrium states are studied. We obtained sufficient conditions to ensure the global stability of the non trivial positive state by using a Lyapunov function. Hopf bifurcations and Turing instability are studies. We end by the numerical experiments to illustrate the analytical results in the different fish exploited and unexploited ecosystem.

Senegalia macrostachya is a multipurpose native shrub in West Africa that faces challenges in natural regeneration due to pests and overharvesting. This study evaluates seed germination and early seedling growth according to provenance, maturity stage, and the number of seeds in the fruit. Fruits were collected from four sites in two climate zones, considering two maturity stages (full and medium maturity) and four fruit types (containing 2 to 5 seeds). Seeds were weighed and their water content was measured before germination trials in alluvial sand and composite soil substrates. Germination was recorded every two days. Starting 65 days after sowing, seedling growth was measured biweekly over a period of 145 days. Data were analyzed using ANOVA. The weight of the seeds ranged from 0.27 ± 0.02 g to 0.45 ± 0.02 g and varied significantly (p < 0.001) between the provenances and between th...

Introduction: Child malnutrition remains a major public health threat in sub-Saharan Africa and is reported to be associated with half of child deaths in Burkina Faso. The World Health Organization recommends exclusive breastfeeding (EBF) as a major intervention to improve overall child nutritional status and survival for the first 6 months of life. The study objectives were to assess the prevalence rates of EBF and to identify factors associated with improved EBF rates. Methods: As part of the evaluation of the Alive and Thrive interventional project in a Western area of Burkina Faso, we conducted a prospective cross-sectional survey in twelve villages randomly selected in the “Boucle du Mouhoun” region. The EBF-prevalence was calculated as the proportion of children who were exclusively breastfed. The factors associated with increased EBF-prevalence were identified using mult...

La communication thérapeutique est un concept employé dans le domaine de la santé. C’est un outil essentiel pour les professionnels de la santé afin d’établir une relation de confiance avec leurs patients et de les accompagner dans leur bien-être. Il est issu de l’évolution de la communication humaine, de l’essor de la psychothérapie et des sciences de la santé, et de l’application de théories de la communication. Cependant rares sont les travaux de recherche qui interrogent une éventuelle possibilité d’une communication thérapeutique tributaire des panégyriques claniques et vodun en milieu fɔn au Bénin. Rogers (1961) a abordé une approche centrée sur la personne pendant que Watzlawick, Beavin et Jackson (1967) de l’école Palo Alto ont montré l’influence thérapeutique de la communication dans les relations humaines. Même si Hounkpatin (2004) a exploré la communication symbolique et théra...

Download PDF JOËL MARTIAL BALKOULGA, ANTOINE BERE, VIWANOU HOUNKPATI, JUN CHEN & PIERRE RUTERANA Abstract The multiferroic RMnO3 (R= Rare earth) are extensively investigated because of their critically important physical properties, as well as their potential applications in spintronics. Due to their magnetocaloric properties, they are also adequate for magnetic refrigeration in the low temperature regime. Most importantly, as refrigerants, they provide an electrical insulation combined with high chemical and mechanical stability. Such critical properties at the basis of the applications mainly depend on the local structure and chemistry. Therefore, the mechanical properties of manganite perovskites RMnO3 (R=Tb, Dy, Ho and Er) have been studied by atomic simulation using the density-functional theory (DFT) as interatomic potential implemented in the Quantum Espresso code. F...

Purpose: The intention of the study was to evaluate whether Sub-Saharan schoolteachers may play a key role in oral health promotion of primary schoolchildren, particularly in terms of prevention of HIV/AIDS-related oral health problems. Materials and Methods: The study examined the level of knowledge about oral disease and the prevention of HIV/ AIDS oral lesions amongst schoolteachers of Tanzania and Burkina Faso, identified their sources of information, and evaluated their ability for HIV/AIDS intervention. A multi-centre cross-sectional study was implemented in the two Sub Saharan African countries. Participants comprised primary school teachers selected by stratified cluster sampling: 261 teachers from Tanzania and 313 teachers from Burkina Faso. All participants completed a structured question naire prepared for self-administration. The questions were designed from a sta...

Abstract Background/Objectives: The World Health Organization (WHO) recommends early initiation of breastfeeding (EIBF) as a beneficial practice for newborns and their mothers. We conducted a breastfeeding study to estimate prevalence of EIBF and to evaluate its associated factors in rural Burkina Faso. Methods: We conducted a secondary analysis of the data collected during an originally prospective cross-sectional study as part of the evaluation of the Alive & Thrive project interventions in the Boucle du Mouhoun region of Burkina Faso. Descriptive statistics were used to calculate an estimate of EIBF prevalence and its 95% CIs. We used multivariable logistic regressions to identify factors associated with EIBF-rates. Results: A total of 157 mother-infant pairs with the child being under 6 months of age were enrolled in the original dataset and all included in our analyses....

La faible fertilité du sol et les séquences de sécheresse sont des contraintes pour le développement de la production végétale au Burkina Faso. Une étude a été réalisée pour déterminer les effets du polyter et du turbo-bio sur deux types contrastés de sols et la production de l’aubergine. L’essai a été installé selon un dispositif en blocs complets totalement randomisés avec quatre répétitions. Douze traitements, issus de la combinaison de la fertilisation et le stress hydrique, composaient l’essai. Les observations ont porté sur la croissance et la production de biomasses. Des échantillons de sols prélevés ont fait l’objet d’analyses aux laboratoires : dégagement de CO2, pH, carbone, azote, phosphore et humidité pondérale. Les résultats ont montré que le polyter et le turbo-bio ont amélioré le pH, le taux d’humidité et l’activité respiratoire. Ils ont induit une hausse des teneurs en ca...

The overuse of hospitals in Burkina Faso, especially during emergencies, is largely due to chronic underfunding and weak coordination among health centers. These challenges create critical bottlenecks in emergency care, where resources are limited and demand is often unpredictable. Motivated by the need for improved management of emergency patients in resource-constrained urban settings, this study focuses on optimizing emergency resource allocation at the city level through a hybrid methodological approach. Our framework is organized into three complementary steps. First, Linear Programming (LP) is applied to establish a theoretical basis for optimal resource allocation, providing an initial structure for decision-making. Second, Particle Swarm Optimization (PSO) is introduced to extend the LP model by incorporating nonlinear constraints and enabling flexible redistribution of resources...

Introduction : L'hypoplasie de l'artère carotide interne (ACI) est une malformation congénitale rare. son incidence est de 0.01%. Son association avec un trajet aberrant du vaisseau réalise une association lésionnelle rare. Observation : Nous rapportons un cas d'ACI gauche hypoplasique avec un trajet aberrant chez un garçon de 10 ans présentant des comitialités et des céphalées, méconnu à l'IRM puis diagnostiqué en seconde lecture par un angioscanner du polygone de Willis et des troncs supra aortiques. Conclusion : cette association malformative doit être connue de tout radiologue et praticien ORL. La méconnaissance de ces malformations pourrait avoir des conséquences graves lors d'une chirurgie de la région cervicale.