We present here a fractional model in the sense of Caputo of a vector-borne disease with insecticide resistance genes. This study is important because it contributes to our understanding of vector-borne disease transmission dynamics using the notion of dif- ferential operators. The use of fractional derivatives in the model provides a memory efect and long-term dynamics often observed in infectious diseases. An epidemic must be able to decline slowly because of the memory of previous contacts. A detailed proof for the existence and uniqueness of the solution of the model is presented. The basic reproduction number R0 is derived, and a stability analysis of the equilibrium points is established. Numerical simulations are provided to prove the usefulness of the theoretical results. We simulated each model compartment at various fractional orders and compared them with integer-order simulat...

Passkeys are a passwordless authentication method that is increasingly being adopted. Based on asymmetric cryptography, they offer a secure and promising alternative to traditional passwords. In this paper, we propose a new secure approach for passkey synchronization based on a Peer-to-Peer mechanism between devices. Our secure services integrates biometric authentication via fingerprint or facial recognition, Wi-Fi Direct and QR codes. Also our secure approach use Elliptic Curve Diffie-Hellman algorithm for secure key exchange and Zero-Knowledge Proofs for mutual authentication in passkey system. This approach ensures the confidentiality and integrity of passkeys while eliminating reliance on central servers and strengthening protection against Man-in-the-Middle attacks and identity spoofing.

This work concerns the design of a small hybrid photovoltaic/diesel generator power plant with battery energy storage. This system will supply electricity to the Koumnéré area, located in the South-Central region of Burkina Faso. Photovoltaic energy is obtained from a free primary energy source: solar energy. However, it is an intermittent energy source that depends on the time of day and is generally subject to weather conditions. Electricity production from diesel generators is stable, but the fuel it requires has a high cost. Furthermore, its operation is accompanied by greenhouse gas emissions. In addition, its efficiency remains average, estimated at around 45%. Therefore, we opted for a hybrid system, which offers several advantages. The energy needs assessment for the Koumnéré area was based on statistical data from the fifth General Population and Housing Census (GPHC) of Burkin...

Spermophagus niger L. (Coleoptera: Chrysomelidae) is the main insect pest of Hibiscus sabdariffa seeds (Malvales: Malvaceae) during storage, with initial infestations occurring in the field. This study presents the first assessment of S. niger development on Hibiscus asper seeds (Malvales: Malvaceae), a wild and underutilized species widely distributed across tropical Africa and Madagascar. The aim was to evaluate its potential role in the ecological management of H. sabdariffa seed infestations. Twenty pairs of less than 24 h-old S. niger adults were individually placed in Petri dishes (9 cm diameter × 1.5 cm height), each in contact with 30 healthy H. asper seeds, under controlled conditions (32°C ± 0.1; 43 ± 1% r.h.) in total darkness. The seeds were renewed daily until the insects died. The results showed that S. niger completes its developmental cycle on H. asper seeds. However, its...

Introduction: Emerging and re-emerging viral diseases are a growing threat to public health, especially in resource-limited countries. In Burkina Faso, the resurgence of dengue fever, associated with cases of chikungunya and measles, reflects persistent transmission and a morbidity and mortality still poorly documented in hospitals. The objective of this study was to describe the epidemiological profile of these diseases at the Yalgado Ouédraogo University Hospital Center in Ouagadougou. Methodology: It was a cross-sectional, descriptive and analytical study with retrospective data collection conducted from January 2018 to December 2023. All patients admitted to the infectious disease department for an emerging and re-emerged viral disease are included. Data was collected using the KoBoCollect application and analyzed with STATA v16 software. Results: A total of 464 patients (73.4%) out...

The preservation of agrobiodiversity is widely regarded as a cornerstone of sustainable agri-food systems, yet dominant narratives often portray crop diversity in smallholder farming as declining under pressures of intensification and market integration. Less attention has been given to how farmers themselves perceive, manage, and actively shape agrobiodiver sity over time. Drawing on political ecology and farmer-agency perspectives within a broader socio-ecological framework, this study examines patterns of crop species and varietal diversity across eight villages in Burkina Faso and Ghana. A mixed-methods approach combining surveys with 320 respondents and participatory focus group tools—including matrix scoring, four-square diagrams, and historical timelines—was used to analyze both quantitative trends in agrobiodiversity and farmers’ lived experiences. Results show that agrobiodiver...

Extended-spectrum β-lactamase (ESBL)-producing Escherichia coli and Klebsiella pneumoniae are major contributors to antimicrobial resistance worldwide. Data from Burkina Faso remain limited, despite growing concerns about multidrug resistance in urinary pathogens. We conducted a retrospective cross-sectional study using microbiological records from three medical laboratories in Ouagadougou between January 2018 and December 2022. All urine culture isolates of E. coli and K. pneumoniae were included. Patient demographics, hospitalization status, and antimicrobial susceptibility profiles were extracted. ESBL production was confirmed phenotypically using the double disk synergy test. Statistical analyses were performed to compare prevalence and resistance patterns across species and patient groups. A total of 4,234 isolates were analyzed, comprising 3,084 E. coli (72.8%) and 1,...

In traditional medicine, the leaves of Capparis sepiaria and Maerua angolensis, known as kal-yanga and Zilogo respectively in the local Moore language, are used to treat gastric and duodenal ulcers and other gastrointestinal disorders. This study aimed firstly to evaluate in vivo the ability of the extracts to reduce gastric acidity and secondly to determine the contents of bioactive compounds potentially responsible for this effect. The pylorus ligation model in rats was used to assess the plant extracts effect on gastric acidity. Total phenolics were determined using the Folin–Ciocalteu reagent, while the flavonoid, condensed tannin, and hydrolysable tannin contents were determined by the aluminum trichloride, vanillin and sodium iodate method respectively. The best gastric acid-reducing activity equal to 32.88 milliequivalent of hydrogen ions per liter (mEq H+/L) was obtained with the...

ntroduction : La rage, zoonose mortelle mais évitable, reste un défi majeur de santé publique au Burkina Faso. Objectif : Analyser les tendances épidémiologiques (2013-2023) et identifier les lacunes des systèmes de surveillance et de contrôle. Méthodes : Une étude à méthodes mixtes combinant une analyse rétrospective des données de surveillance (2013– 2023) et une enquête qualitative transversale par entretiens auprès de 20 acteurs clés (soignants, vétérinaires, responsables) a été conduite. Résultats : L'analyse révèle 555 cas humains et 2 108 animaux confirmés. Une augmentation annuelle significative des cas humains est observée (coefficient de Poisson=0,08 ; p<0,01), avec un pic d'incidence à 0,53 pour 100 000 habitants en 2022. Cette tendance contraste avec l'absence d'évolution significative des cas animaux, suggérant une sous- déclaration massive. Les obstacles qualitatif...

Listeriosis is a foodborne illness that can lead to bacterial meningitis. In this paper, we propose and investigate a model of co-infection involving both listeriosis and bacterial meningitis, originating from ready-to-eat food products. We begin by examining the patterns of each disease individually, as well as the dynamics of their co-infection. From our global co-infection model, we derive separate models for bacterial meningitis and listeriosis. Each model is analyzed in terms of the existence of equilibrium points, threshold dynamics parameters, stability results, sensitivity analysis, and the presence of backward and forward bifurcations. Finally, we present numerical simulation results to support our theoretical findings.