L’étude visait à évaluer les caractéristiques chimiques des substrats organiques locaux utilisés pour amender les parcelles agricoles dans la zone cotonnière à l’ouest du Burkina Faso afin de favoriser une meilleure valorisation de ces substrats locaux. Pour la conduite, sept types de fumures organiques notamment le compost villageois, fumier d’étable, fumier de petits ruminants, terre de parc, ordures ménagères et deux fumiers expérimentaux ont été collectés sur six sites dans les provinces de Tuy et Mouhoun au Burkina Faso. Les mesures ont été effectuées sur le pHeau, la teneur en matière organique, et les teneurs en éléments nutritifs majeurs (N,P,K). Les fumures organiques se sont révélées faiblement acide à légèrement basique (6,96±0,82 à 8,82±0,15) et une teneur acceptable en matière organique (13,56±5,03% à 38,05±10,46%) par rapport aux normes recommandées (10% à plus de 30%). Le...

Introduction : L’amputation correspond à la perte de tout ou partie d’un ou de plusieurs membres. Elle entraine une modification biomécanique majeure de l’appareil locomoteur. En Afrique les possibilités d’appareillage sont souvent limitées. L’objectif de cette étude était de décrire les aspects épidémiologiques, cliniques, thérapeutiques et le devenir des amputés de membres d’origine non traumatique. Patients et méthode : Il s’est agi d’une étude rétrospective sur une période 36 mois. Les données socioprofessionnelles, cliniques, para cliniques et thérapeutiques des patients admis dans le service de chirurgie pour une amputation d’origine non traumatique de membre ont été analysées. Résultats : Quarante-sept patients (31 hommes et 16 femmes) ont été colligés. Ils étaient en majorité des cultivateurs (N=28) et des ménagères (N=16). L’âge moyen était de 57 ans. Le délai...

The processes involved in feeding a warehouse require such a high level of expertise that they are generally entrusted to an IT specialist (data administrator). This requires, first, that decision-makers express their needs to the IT specialist and, second, that the data warehouse developed by this IT specialist be validated. In the era of open decision-making information (self-service BI), decision-makers increasingly want to integrate and analyze data themselves without the help of experts. Added to this is the diversity of data, its speed of evolution, and its ever-increasing volume, which hinder traditional ETL approaches because they can no longer meet new requirements. We therefore offer an assistance process that allows decision-makers to integrate data themselves (Extract-Transform-Load: ETL) into a data warehouse using Large Language Models (LLMs) and ontology, without the need...

Background: Fermented Zamné is a traditional condiment produced from Senegalia macrostachya seeds. Aims: This study aims to isolate and characterise predominant Bacillus-related bacteria from fermented Zamné and to evaluate their antimicrobial activity against selected indicator microorganisms. Methods: A total of 65 aerobic mesophilic bacterial isolates obtained from four independent fermentations were characterised using morphological and biochemical methods. Forty-four isolates were spore-forming, and 29 isolates displaying morphological characteristics consistent with Bacillus-related bacteria were further characterised and identified using the API 50 CHB system. The antimicrobial activity of the isolates was evaluated by an agar well diffusion assay against 13 indicator microorganisms, including Gram-positive and Gram-negative bacteria, yeasts, and moulds. Results: The isola...

Approximately 65% of agricultural land in the Sudano-Sahelian zone of Burkina Faso consists of degraded bare soils requiring urgent restoration. Although zaï technology is widely adopted, the influence of pit dimensions and their interaction with organic and mineral fertilisation on soil restoration remain insufficiently understood. A split-plot design was installed in 2019 on two contrasting bare soils: Toyendé (moderately acidic lixisol, Sudano-Sahelian) and Gouéré (near-neutral plinthosol, Sahelian). The main factor comprised four rectangular zaï pit lengths (30, 35, 40, 45 cm) and one circular pit (30 cm), all 20 cm deep in order to compare the performance of the two types of zaï in terms of water collection and the trapping of plant residues in the pits. The sub-factor comprised four fertilisation regimes: no input, compost (250–500 g/pit), NPK (6.5 g/pit) and compost + NPK. After t...

We develop a nonlinear host–vector model to describe the transmission dynamics of Tomato Yellow Leaf Curl Virus (TYLCV) in tomato crops. The model couples an SEIR structure for the plant population with an SI formulation for the vector Bemisia tabaci, incorporating logistic growth and saturated incidence functions

In African catfish hatchery systems, post-stripping egg storage duration may vary among operators, and different additives are sometimes used empirically for sperm activation during artificial fertilisation. This study assessed the effects of post-stripping egg storage duration and sperm activation media on sperm motility characteristics and fertilisation success in C. gariepinus. Three egg storage durations (11, 38, and 71 min) and four sperm activation media (borehole water, sugar–salt borehole water, sugar borehole water, and saline borehole water) were evaluated with three replicates. Regarding sperm motility characteristics, borehole water resulted in the highest motility rate (83.3 ± 5.8%), whereas salt-containing activation media produced the lowest values (10.0 ± 8.7% and 4.0 ± 1.7%). However, no significant relationship was observed between sperm motility parameters (motility ra...

Improvised explosive devices (IEDs) pose a serious threat to military operations. Previous studies have shown that thermal imaging can effectively distinguish between undisturbed soil, disturbed soil, and disturbed soil containing or not containing a buried IED, using batch-normalized VGG11 and VGG16 networks respectively. This study focuses on assessing the added value of contextual data (namely flight altitude, ambient temperature, and sunlight exposure) in improving the classification of thermal UAV images. Flight altitudes were vectorized and processed through a fully connected network. Ambient temperature and sunlight data were modeled as time series and analyzed using Long Short-Term Memory (LSTM) networks. A batch-normalized VGG16 network served as the backbone for thermal image processing. The outputs from all modalities were combined and passed through a fully connected classifi...

Aims: Maize is a major staple food in Sub-Saharan Africa but its production is severely affected by maize streak disease caused by Maize streak virus (MSV). Despite the importance of the disease for food security, information on the genetic diversity of MSV isolates in West Africa remains limited. This study aimed to characterize the genetic diversity of MSV isolates collected from maize and wild grasses in Burkina Faso and to determine their phylogenetic relationships, with particular emphasis on identifying previously unreported virus strains. Study Design: This was a molecular characterization study based on PCR detection, DNA sequencing, and phylogenetic analysis of MSV isolates. Place and Duration of Study: The study was conducted in Burkina Faso using MSV isolates collected from maize and wild grasses during field surveys over two years. Methodology: Leaf samples exhibiting symptom...

The milk production and reproductive performance of crossbred cows under tropical conditions in the peri-urban area of Ouagadougou were assessed in two phases from February to December 2023. The first phasecomprised interviews with 60 dairy farmers to evaluate the reproductive and dairy performance of crossbredcows. The second phase was a field trial at a research station to evaluate the effects of crossbreeding levels,including first (F1/G1) and second (F2/G2) generations, on dairy performance and milk chemicalcomposition. The animals were crossbreeds obtained through progressive absorption crossing between localzebu breeds (Fulani, Goudali and Azawak) and exotic dairy breeds (Montbeliarde, Holstein, Brown Swiss andTarentaise). All producers reported that the crossbred cows had adapted to local climatic conditions, and76.66% of farms practiced controlled breeding through artificial inse...