Monocrystalline and polycrystalline silicon-based modules are commonly used in Burkina Faso, particularly in the city of Koudougou, to generate electricity. However, climatic parameters affect the performance of these modules. It is therefore necessary to conduct a comparative study between polycrystalline and monocrystalline silicon-based photovoltaic solar modules. The objective of this work is therefore to determine the module best suited to the city of Koudougou's climatic context. In this study, climatic parameters such as sunshine and temperature were considered. Thus, based on the mathematical model of a photovoltaic module, a simulation was carried out in the MATLAB/Simulink environment an experimental study of the two types of modules was conducted. The results obtained after the simulations and experiments were compared. Analysis of the results for the two module technologies s...

Background Vector control strategies have predominantly relied on the use of synthetic chemicals, leading to the widespread of resistance among malaria vector populations. This growing resistance has prompted increased interest in alternative control methods, particularly those based on plant-derived essential oils (EOs). The present study investigates the insecticidal efficacy of five essential oils against field populations of Anopheles gambiae sensu lato from Burkina Faso. The objective was also to assess the current distribution and frequency of resistance-conferring mutations within these mosquito populations. Methods Essential oils were extracted from Cymbopogon citratus, Cymbopogon nardus, Eucalyptus camaldulensis, Lippia multiflora, and Ocimum americanum plants by hydrodistillation, and their chemical composition was analyzed by gas chromatography coupled with mass spectro...

Cet article explore la relation entre les dépenses d'investissements publics dans le secteur sportif et la croissance économique au Burkina Faso. À l'aide du modèle autorégressif à retards échelonnés (ARDL), l'étude analyse les effets à court et à long terme de ces investissements. Les résultats principaux révèlent une corrélation positive entre le produit intérieur brut (PIB) par habitant et les dépenses d'investissement sportif. La relation suit une dynamique non linéaire, suggérant l'existence d'un seuil minimal d'investissement nécessaire pour déclencher un impact significatif sur la croissance économique. Sur la base de ces conclusions, il est recommandé que l'État burkinabè alloue un budget conséquent à la construction d'infrastructures sportives de qualité, tout en promouvant leur utilisation. De plus, la mise en place d'un mécanisme de gestion efficace des resso...

Chilo zacconius is one of the main rice stem borers in Burkina Faso. A study was conducted on its biology under controlled conditions of 25.46 ±1 °C temperature, 75.94 ±4% relative humidity, and a 12-hour photoperiod. To do this, immature populations of the insect were sampled in rice fields at Bama, western Burkina Faso for mass rearing of the insect pest in the lab. Tavakilian food substrate was used to feed C. zacconius larvae till chrysalid stage, while adults were fed with sugar water. Results showed that the insect had an average life cycle of 65.57±3.12 days, with egg incubation averaging 5.44±0.14 days. The larval phase was the longest one in the insect’s cycle, with an average duration of 48.71±2.46 days, and comprised 7 larval instars. The average lifespan of pupae was 8.1±0.33 days. Average fecundity ranged from 80 to 309 eggs. The average fertility of the insect was 34±6...

Background Aedes aegypti, the primary vector of Dengue fever in Burkina Faso, breeds in a variety of domestic and peri-domestic water holding containers. The influence of these water containers on the mosquitoes’ ability to survive exposure to chemical insecticides remains unclear. This study investigated the insecticide susceptibility profile of Aedes aegypti in relation to larval habitat types in three districts of Ouagadougou. Methods Adult females reared from larvae collected in “domestic containers” and “car tires” were exposed separately to papers impregnated with deltamethrin, pirimiphos-methyl, and bendiocarb to determine their susceptibility profiles. A subsample of mosquitoes per locality and container type was screened for the F1534C, V1016I and V410L kdr mutations involved in pyrethroid resistance. Results Mosquito population from the three localities showed high resistan...

La stabilité et la légitimité de l’exercice du régime démocratique se fondent sur une large participation de toutes les parties prenantes ou composantes de la société à savoir : les populations à la base, la presses, les religieux, la société civiles etc. En fait, pour que la démocratie conserve sa capacité d'autodéfense, il faut que la majorité des citoyens souhaite vivre sous un tel régime, respecte les règles démocratiques et ait confiance en ses institutions et ses responsables. Tout cela parce que la modernité a des effets très profondes sur les institutions et la vie sociale quotidienne. Par exemple, un de ces effets parmi tant d’autres, est l’élévation du niveau de compétences des citoyens ordinaires dans les sociétés contemporaines, leur aptitude à remettre en cause les formes traditionnelles d’expertise et à produire eux-mêmes des connaissances originales et utiles à l’action...

Abstract BACKGROUND: Health literacy refers to the ability of individuals to obtain, understand, and use health information. The objective of our study was to assess the literacy level of students at Joseph KI-ZERBO University in 2024. METHODS AND MATERIAL: It was a cross-sectional study with analytical purpose carried out from January 15 to June 15, 2024, among students of the University Joseph KI-ZERBO (Ouagadougou) in 2024. A stratified two-stage sampling was carried out, proportionally distributing the participants according to the number of each UFR/Institute, which served as main strata. The sample was determined according to their relative weight in the total population. Cluster analysis was performed using a hierarchical classification to assess student health literacy. RESULTS: The study population consisted of 53.76% men, mostly aged 21 to 25 (60.09%), and single (...

Annona senegalensis Pers. is a wild edible shrub species with high nutritional value. However, the species is poorly promoted across sub-Saharan Africa due to the lack of information about its productivity. This study aimed to: (i) identify the driving factors of the species’ fruit biomass and (ii) develop allometric models for estimating its fruit biomass. Data on fruit biomass were collected from 212 shrub individuals distributed across the Sudano-Sahelian and Sudanian climate zones of Burkina Faso. For each climate zone, 75% of the data were used for fitting allometric models, and 25% were used for model validation. The best predicting models were selected based on the coefficient of determination (R2) Akaike information criterion (AIC), and prediction error. Results revealed that the climate zone has a significant effect on the fruit biomass of A. senegalensis (p< 0.001). The highest...

This study aims to evaluate the physicochemical, microbiological and nutritional quality of silage from three improved sorghum varieties (Sariaso 14, Sariaso 15 and Sariaso 16) used in livestock farming systems in Burkina Faso. The sorghum stover were harvested after the grain harvest and ensiled with four treatments: without additives, with molasses, with salt, and with molasses + salt for 120 days. After 120 days, the fermentation parameters differed according to the varieties and additives. The pH of the silages ranged from 3.71 to 4.64, with the lowest values observed in Sariaso 16 ensiled with salt. The highest titratable acidity (18.36 g/kg DM) was obtained in the molasses + salt treatments, indicating more intense fermentation. From a microbiological perspective, the aerobic bacteria loads were lowest in molasses + salt silage (3.41×10⁶ CFU/g DM) compared to the control (1×10⁷ CF...

Purpose: This study evaluated prevalence, severity and risk indicators of periodontitis among urban West African adults using CDC/AAP 2012 and EFP/AAP 2018 criteria. Materials and methods: A cross-sectional study among adults attending four public dental centers in Ouagadougou, Burkina Faso was conducted. Sociodemographic and risk factors were collected by interview, and full-mouth periodontal exams were performed at six sites per tooth. Both CDC/AAP 2012 and EFP/AAP 2018 definitions were applied. The performance of the EFP/AAP criteria was compared with CDC/AAP as the reference. Results: A total of 749 participants (mean age: 34.32 ± 11.51 years; 52.34% female) were included. The prevalence of periodontitis was 71.83% using EFP/AAP criteria (stage I: 16.02%; stage II: 24.57%; stage III/IV: 31.25%) and 56.21% with CDC/AAP (mild: 6.28%; moderate: 38.45%; severe: 11.48%). Compared wi...