L'essai fais un panorama critique des 50 ans du Grand prix nationale des arts et des lettres, dans sa section "lettres". Il parcourt l'histoire de l'institution (naissance et évolution) et mettant l'accent sur les acteurs, les auteurs, les oeuvres primées et éditées, ainsi que les thèmes abordés d'une édition à l'autre.

Le stationnement en milieu urbain constitue une problématique majeure, engendrant des pertes de temps significatives (en moyenne 20 minutes par conducteur et par jour), une hausse du trafic d'environ 30 % et une hausse de la pollution de 15 % (source : ADEME). Pour répondre à ces enjeux, les technologies de stationnement intelligentes, combinant capteurs, intelligence artificielle et applications mobiles, émergent comme une solution prometteuse. Cette communication a pour objectif d'évaluer l'efficacité de ces systèmes en s'appuyant sur une étude de cas menée dans la ville de Ouagadougou, et de discuter des modèles algorithmiques d'optimisation permettant de guider les conducteurs vers les places disponibles en temps réel.

This study investigated the effects of natural environmental factors on growth and tuber production of Tacca leontopetaloides (L.) Kuntze. Data were collected from 74 plots installed in natural vegetation across different climate and soil conditions in Burkina Faso. Results showed that the climate zone has a significant influence on total height, leaf area, and tuber weight of the species (p ˂ 0.05, respectively), with the highest values in the rainiest zone. Soil texture exhibited a significant effect on tuber weight (p ˂ 0.05). The highest tuber yield was recorded on sandy loam soils and the lowest on sandy clay soils, with mean values estimated at 20.72 ± 23.48 and 9.6 ± 4.13 kg ha−1, respectively. Land cover, soil potassium, and phosphorus positively influenced tuber weight of the species, while only phosphorus significantly affected aboveground growth traits (total height and leaf a...

Wastewater treatment is a major environmental issue, requiring effective and sustainable solutions around the world. In this study, plantain peel is used as a natural coagulant-flocculant in the wastewater treatment process. To do this, decoctions of ripe and unripe banana peels were prepared. The main chemical constituents were then identified using characteristic reagents. The total oses, total phenolic compounds, and condensed tannins were measured using the phenol-sulfuric acid, Folin-Ciocalteu, and vanillin methods in an acidic medium, respectively. Finally, the flocculant-coagulant properties of the different aqueous extracts were evaluated using the Jar Test method. The yields of dry crude extracts were 17.91% and 25.4% for ripe and unripe banana peels, respectively. Qualitative tests revealed the presence of polysaccharides, alkaloids, tannins, and lignins in both extracts. The v...

Malgré la reconnaissance par tous que l’éducation est un droit de l’homme et un facteur essentiel au bien-être des individus et au développement économique des pays, les investissements dans ce secteur ne constituent pas une priorité pour les décideurs. Ce constat est visible au niveau post-primaire et secondaire où l’offre scolaire présente toujours des inégalités dans tous les domaines. Cette recherche analyse ces inégalités du point de vue de l’offre spatiale dans la ville de Koudougou l’une des quatre communes urbaines de la région du centre-ouest. Elle s’appuie sur une approche bidimensionnelle et utilise des données quantitatives et qualitatives primaires. La méthode d’analyse utilisée avec les données quantitatives est plus descriptive. Quant aux données qualitatives, c’est l’analyse du contenu qui est utilisée. Les résultats montrent que l’offre scolaire dans la ville de Koudougo...

This opinion paper is informed by a scoping review and validated through a multi-stakeholder workshop. In May 2024, the Gender Transformation for Africa, an African-led research partnership that includes programme implementers and researchers who are working on gender-transformative research projects to advance sexual and reproductive health (SRH) in Africa, convened a 3-day workshop in Cape Town, South Africa. The aim of the workshop was to validate a scoping review conducted by the School of Public Health at the University of the Western Cape. The scoping review aimed to examine patterns of leadership in authorship of gender-transformative SRH research and programming across Africa and focused on authorship, funding and geographic context. This review revealed significant regional disparities in the publication of gender-transformative SRH literature across Africa. Compared w...

We present the impact of center-to-limb darkening (𝜀𝑖) on spectral line profiles of G-type stars through systematic analysis of cross-correlation function broadening. Using solar-type stellar spectra, we examine how center-to-limb darkening coefficients affect the measured full width at half maximum (FWHMCC) and derived rotational velocities (Vbroad). Our analysis employs the darkening coefficients from (Claret, 2000) and samples 19 rotational velocities from 0 to 100 km/s to optimize coverage of the observed stellar rotational ranges for calibration. We demonstrate that center- to-limb darkening variations induce systematic changes in measurements, with particularly pronounced effects for slow rotators where macroturbulence contributions (2-4 km/s) become dominant. The broadening parameter shows significant correlation with the darkening coefficient varying by 4.4 km/s (44.8%) over the...

Anemia is a public health problem afecting mainly children under 5 years and pregnant women. However, school-age children are also afected but are often neglected in research. This study aimed to assess the prevalence and factors associated with anemia among primary school children in public schools in the Plateau Central Region of Burkina Faso. Hemoglobin (Hb) concentration was determined using a HemoCue HB201þ analyzer. Data were collected from 551 schoolchildren aged 5–14 years. Anemia was established if the Hb level was lower than 11.5 g/dL in children aged 5–11 years and less than 12 g/dL in children aged 12–14 years. Binary logistic regression was adjusted to identify factors associated with anemia at a p value < 0.05. The prevalence of anemia was 59.2%, including 52.6% of the girls. Schoolchildren aged 5–11 years were the most afected, with a rate of 58.5%, versus 60.2% for...

La thématique du chaos est récurrente dans la production romanesque burkinabè. Depuis les premières heures, en 1962, avec la publication du roman Crépuscule des temps anciens, jusqu'à très récemment, en 2023. Si cette thématique semble illustrer les réalités de la société burkinabè, il est peut-être temps pour cette littérature d'amorcer un renouveau thématique.

Introduction: To assess anxiety and depressive disorders in patients with cirrhosis in the hepato-gastroenterology departments of two tertiary hospitals and one secondary hospital in the city of Ouagadougou. Patients and Methods: This was a descriptive and analytical cross-sectional study with prospective data collection. This study lasted five months and involved patients with cirrhosis. The diagnosis of cirrhosis was made on the basis of clinical and paraclinical criteria. Anxiety and depression were assessed using the HADS (Hospital Anxiety and Depression Scale) score. Results: A total of 90 patients were included. There were 70 men (77.8%). The mean age was 51.5 ± 26.5 years. Anxiety was observed in 48 patients (53.3%). Anxiety symptoms were evident in 35.5% of patients. Forty-two patients (46.7%) had depression. Depressive symptoms were evident in 30% of cases. Low socioeconomic...