Background The bush banana (Uvaria chamae P. Beauv.) is a wild edible fruit, but its population has declined recently in Benin. This study assessed the traditional knowledge and use of U. chamae, along with the key factors relevant to its conservation and sustainable management. The study reports (i) traditional knowledge and effective use of the species by local communities in relation to socioeconomic factors, (ii) local perceptions of threats to U. chamae, and (iii) conservation strategies suggested by local communities to ensure its sustainable use and management in Benin. Methods This study was carried out in the Guineo-Congolian and Sudano-Guinean zones of Benin where the species occurs. The data were collected from June to December 2021. The study sites were selected based on the occurrence and geographical distribution of U. chamae, while taking into account the representati...

L'objectif de cet article est d'analyser les interactions entre les fluctuations des prix des matières premières, les chocs externes et la balance des paiements du Burkina Faso, sur la période 1981-2022, en utilisant un modèle économétrique à équations simultanées inspiré de Klein (1955). Les résultats montrent que les exportations sont positivement influencées par la production d’or, le prix du coton, le prix de l’or et de l’indice international des prix des matières premières, mais négativement par la dette extérieure liée aux importations alimentaires. La résilience économique est renforcée par les productions de l’or et du coton, l'indice international des prix des matières premières, les investissements directs étrangers et la production d’or. Ces résultats soulignent les défis et opportunités pour le Burkina Faso dans la gestion des fluctuations des prix des matières premières.

This paper deals with the numerical approximation of the mild solution of a quasilinear parabolic equation with variable exponent. Under some conditions, it is shown that the mild solution is a weak solution. Numerical tests are performed using the split Bregman method. The functional setting involves Lebesgue and Sobolev spaces with variable exponent.

In this paper we solve fractional order integro-differential equations of Fredholm type and Volterra type. For the solution we use a new Adomian decompositional method. In the first part we give the basic notions on fractional operators, essential to our work. The second part is devoted to the description and convergence of the method. In the third part, the method has been used to solve fractional order integro-differential equations of Fredholm type and Volterra type.

We study the uniqueness of entropy solution for a class of triply nonlinear parabolic integro-differential equations of the form ∂t k ∗(j(v)−j(v0)) −∇· a(x, ∇ϕ(v)) + F (ϕ(v)) = f in a bounded domain with homogeneous Dirichlet boundary conditions. The source term f belongs to L1 and the memory term k ∗(j(v)−j(v0)) introduces a nonlocal dependence. The functions j(v) and ϕ(v), assumed to be non- decreasing, further contribute to the nonlinear nature of the problem. To prove uniqueness, we apply the method of doubling variables leading to an energy estimate that ensures the desired result.

De la naissance à la mort, l’humain dans la communauté moaaga est un potentiel apprenant. Il n’y a pas d’âge pour apprendre et le cycle de l’éducation est si long qu’il s’achève probablement avec la mort. Au nombre des rites qui rythment l’éducation de l’enfant, il y a l’initiation qui est désignée en moore sous l’appellation keoogo. C’est un espace de réclusion des futurs initiés où l’étape la plus emblématique de l’initiation est la circoncision. Le choix de la date et l’espace du keoogo sont soumis à la volonté des ancêtres. C’est dans ce sens qu’une prière introductive est prononcée par les prêtres de la terre pour implorer l’assistance des aïeux au profit des candidats à l’initiation. En écoutant cette prière, on se rend compte qu’elle est construite autour d’espaces sacrés caractéristiques de la foi des Moose. En posant la problématique de l’espace dans la prière introductive du ke...

Résumé Congo est un recueil poétique d’Alain Mabanckou qui oscille entre heurs et malheurs, entre espoir et désespoir, entre drame et renaissance du Congo. Ce recueil compte trois poèmes inégalement répartis : « Du lecteur congolais » (3 pages) ; « Du Voyage au Congo » (2 pages) et enfin « Curriculum Vitae » (65 pages). Ce dernier poème charrie autant de souvenirs douloureux sur l’histoire politique et sociale du Congo-Brazzaville natal de l’auteur. Au-delà de ces troubles politiques, « Curriculum Vitae » est un poème d’espérance. Les réalités du Congo sont dépeintes dans son poème par une double voix : un narrateur en nous (qui exprime un sujet collectif) et un narrateur en « je » (exprimant un sujet individuel). Cette réflexion a montré que le sujet collectif (nous) vit dans un drame, mais le sujet « je » individuel porte l’espoir du Congo.

Sweet stalk sorghum [Sorghum bicolor (L.) Moench] is a type of sorghum characterized by the sugary juice in its fresh stalk. It is predominantly cultivated in Burkina Faso for its stalk, which is consumed as a snack. However, sweet stalk sorghum remains underutilized in Burkina Faso due to the lack of awareness of its vast potential. Furthermore, few investigations on sweet stalk sorghum were carried out by research programs in Burkina Faso, except preliminary studies initiated by the Plant Genetics and Breeding Team of the University of Ouagadougou in 2008. This review seeks to consolidate findings from various research efforts on this crop, specifically focusing on indigenous knowledge, genetic diversity, and nutritional value, with the aim of proposing strategies for varietal improvement and broader utilization in Burkina Faso. A critical analysis of the key findings on sweet stalk so...

Taro leaf blight is considered the most destructive disease affecting taro worldwide. In the Sudanian climatic zone of Burkina Faso, the disease has led to a consistent decline in taro production over recent years. Aims: The current research study was aimed to determine the incidence and the severity of taro leaf blight in various taro fields in three provinces of the sudanian climate zone. Methodology: Plant growing conditions were assessed in 27 fields. Data on healthy and diseased plants, and leaves per plant, were collected within 64 m² quadrats. Disease incidence was the percentage of infected plants per field. Severity was rated on a 12-point scale (0–11) and converted to percentage of affected leaf area, averaged over 10 plants per field. Infestation intensity was calculated as the ratio of infected to total leaves per plant. Place and Duration of Study: Surveys were conducted...

Anaemia is a global public health problem that particularly affects pregnant women and children. Anaemia during pregnancy has harmful consequences for the health of both mother and foetus. However, little is known about the risk factors for targeted interventions. The aim of this study was to determine the prevalence and factors associated with anaemia in pregnant women in the central region of Burkina Faso at the time of the malaria peak and the period of food availability. An analytical cross-sectional study was carried out on 159 pregnant women attending for initial antenatal care between October and January 2022. Sociodemographic, obstetrical, nutritional and biological data were collected. Anaemia was defined as a haemoglobin concentration of less than 11 g/dl. The Chi-square test and bivariate analysis were used to identify factors associated with anaemia during pregnancy. The stud...