Publications (5615)
ARTICLE
Description du peuplement piscicole du lac sahélien de Higa, un site Ramsar du Burkina Faso, Afrique de l’Ouest
Raymond OUEDRAOGO, SOARA Aïcha Edith et OUEDA Adama
Objectif : Ce travail vise à caractériser l’assemblage des espèces de poisson du lac de Higa, un site Ramsar du Burkina Faso, et à identifier, à partir des connaissances des pêcheurs, les espèces qui sont éteintes.
Méthodologie et résultats : En mai 2012 nous avons échantillonné les poissons au moyen de filets épervier et
observé les captur(...)
Burkina, Ramsar, Higa, poisson, écosystème, dégradation
ARTICLE
Pour un ancrage sociologique de l’alphabétisation au Burkina Faso. Analyse des besoins langagiers des populations burkinabè
MAÏGA Alkassoum, NAPON Abou et SORE Zakaria
Au Burkina Faso, une trentaine de langues nationales sont utilisées officiellement pour l’alphabétisation des adultes. En dépit des efforts fournis, la situation de l’alphabétisation ne s’améliore guère et pose la question du choix des langues utilisées pour enseigner. L’article rend compte d’une étude qui a visé à cerner les besoins langagier(...)
politique linguistique, langue d’enseignement, politique éducative, statut de la langue, langue maternelle, alphabétisation, enseignement bilingue
ARTICLE
Détermination d’années météorologiques types utilisées pour la simulation thermique et énergétique des bâtiments de dix villes du Burkina Faso
Ousmane COULIBALY, Emmanuel OUEDRAOGO, Abdoulaye OUEDRAOGO et Jean KOULIDIATI.
Les problématiques énergétiques actuelles conduisent à améliorer la conception des bâtiments ainsi qu’à accroître l’utilisation des systèmes utilisant les énergies renouvelables (ENR). La mise en place de ces objectifs passe par l’évaluation des performances thermiques et énergétiques grâce à des codes de simulation détaillés tel que TRNSYS. D(...)
année météorologique type, simulation sous TRNSYS, charges thermiques, isolation
ARTICLE
External magnetic field effect on bifacial silicon solar cell's electric power and conversion efficiency
Issa ZERBO, Martial ZOUNGRANA, Idrissa SOURABIE, Adama OUEDRAOGO, Bernard ZOUMA, Dieudonné Joseph BATHIEBO
Abstract:This article presents a modelling study of external magnetic eld effect on a bifacial silicon solar cell's electric power and conversion efficiency.
After the resolution of the magnetotransport equation and continuity equation of excess minority carriers, we
calculate the photocurrent density and the photovoltage and then we deduce(...)
Bifacial silicon solar cell, conversion efficiency, electric power, magnetic field, operating point
ARTICLE
Reticulate Speciation and Barriers to Introgression in the Anopheles gambiae Species Complex
A. GNEME
Speciation as a process remains a central focus of evolutionary biology, but our understanding of the genomic architecture and prevalence of speciation in the face of gene flow remains incomplete. The Anopheles gambiae species complex of malaria mosquitoes is a radiation of ecologically diverse taxa. This complex is well-suited for testing for(...)
Mots clés non renseignés
ARTICLE
Nutritional and Anti-Nutrient Composition of Three Kola Nuts (Cola nitida, Cola acuminata and Garcinia kola) Produced in Benin
103. DAH-NOUVLESSOUNON Durand, Adolphe Adjanohoun, Haziz Sina, Pacôme A. Noumavo, Nafan Diarrasouba, Charles Parkouda, Yann E. Madodé, Mamoudou H. DICKO, Lamine Baba-Moussa
Kola nuts were regularly chewed by West Africans and Beninese in particularly. The aim of this
study was to investigate nutritional and anti-nutrient content of three Benin’s kola nuts (Cola nitida,
Cola acuminata and Garcinia kola). Proximate composition of the three species of kola nuts
was assessed using standard analytical AOAC methods.(...)
Kola Nuts, Polyphenolic Compound, Micronutrient
COMMUNICATION
Energy-free Security in Wireless Sensor Networks
Adel Elgaber (1) , Julien Bernard (1) , Yacouba Ouattara (1)
Wireless sensor networks are often deployed in open and uncontrolled environments that make them more vulnerable to security attacks. Cryptographic algorithms can be used to protect the data collected by the sensors against an intruder. The cost in terms of energy to provide enough security can be quite large as these algorithms may be very co(...)
Mots clés non renseignés
ARTICLE
Modelling Study of Magnetic Field’s Effects on Solar Cell’s Transient Decay
Senghane Mbodji, Martial Zoungrana, Issa Zerbo, Biram Dieng, Gregoire Sissoko
Experimental setup of transient decay which occurs between two steady state operating points is recalled. The continuity equation is resolved using both the junction dynamic velocity (Sf) and back side recombination velocity (Sb). The transient excess minority carriers density appears as the sum of infinite terms. Influence of magnetic field o(...)
Solar Cell, Recombination Parameters, Magnetic Field
ARTICLE
A 3D Modelling of Solar Cell’s Electric Power under Real Operating Point
Mayoro Dieye, Senghane Mbodji, Martial Zoungrana, Issa Zerbo, Biram Dieng, Gregoire Sissoko
This work, based on the junction recombination velocity (Sfu) concept, is used to study the solar cell’s electric power at any real operating point. Using Sfu and the back side recombination velocity (Sbu) in a 3D modelling study, the continuity equation is resolved. We determined the photocurrent density, the photovoltage and the solar cell’s(...)
Electric Power, Grain Size, Grain Boundary Recombination Velocity, Polycrystalline, Solar Cell, Junction Recombination Velocity
ARTICLE
De l’or à l’argent : analyse de la vie d’orpailleur au Burkina Faso
MAIGA Alkassoum
Néant
Mots clés non renseignés
ARTICLE
Phenolic composition, in vitro antioxidant effects and tyrosinase inhibitory activity of three Algerian Mentha species: M. spicata (L.), M. pulegium (L.) and M. rotundifol...
M. KIENDREBEOGO
The leaves of three Mentha species harvested in Algeria, Mentha spicata L.(MS), Mentha pulegium L.(MP) and Mentha rotundifolia (L.) Huds (MR) were examined for their content in polyphenols and for some activities-linked biological properties these could impart. The contents in total phenolics (TPC) and flavonoids (TFC) were evaluated by the Fo(...)
Mots clés non renseignés
ARTICLE
SUITABILITY OF GROUNDWATER AND SURFACE WATER FOR DRINKING AND IRRIGATION PURPOSE IN ZIO RIVER BASIN (TOGO).
TAMPO L., GNAZOU D.T.M., KODOM T. , OUEDA A. & BAWA L.M.
Zio River basin plays a particular importance as a potential water resource for irrigation, drinking and for other various purposes relating to socioeconomic activities. These socioeconomic activities considerably change water quality and quantity in this basin. An investigation was carried out by collecting 52 groundwater samples and 168 surf(...)
Agriculture, quality, irrigation parameter, Zio River, Togo
COMMUNICATION
Constacyclic codes over F_q + uF_q + vF_q + uvF_q
Joël Kabore, Mohammed E. Charkani
Let q be a prime power and Fq be a nite eld. In this paper, we study constacyclic
codes over the ring F_q + uF_q + vF_q + uvF_q, where u2 = u; v2 = v and uv = vu: We
characterized the generator polynomials of constacyclic codes and their duals using
some decomposition of this ring.
Constacyclic code
ARTICLE
Factors associated with time to mandatory tuberculosis notification in the Somme department, France
P.K. Yanogo, J.-L. Schmit, A.-S. Fresse, C. Andrejak, S. Castelain, C. Adjodah, O. Ganry
Background. – The associated factors contributing to a delay in mandatory tuberculosis notification in the Somme department, France, are not
yet known. The objective of this study was to analyze these factors.
Methods. – All reported cases of tuberculosis between 2007 and 2011 were retrospectively included. Univariate and multivariate analys(...)
Prevention; Tuberculosis; TB notifications; France
ARTICLE
GENETIC DIVERSITY OF CULTIVARS OF KUMBA GROUP (SOLANUM AETHIOPICUM) ASSESSED BY EST-SSRS
BATIONO-KANDO Pauline, NANEMA K. Romaric, KIÉBRE Zakaria, SAWADOGO Boureima, KIÉBRE Mariam, NÉBIE Baloua, SAWADOGO Nerbéwendé, TRAORÉ R. Ernest, SAWADOGO Mahamadou, ZONGO Jean-Didier
To determine genetic diversity among 43 cultivars of Kumba group (Solanum aethiopicum L.), 17 simple sequence repeat (EST-SSR) markers were tested. Nine (9) EST-SSR markers used were polymorphic among the accessions studied. A total of 19 alleles were identified with an average of 2 alleles per marker. Furthermore, the accessions studied showe(...)
Germplasm, ,Germplasm, Genetic Relationship, Kumba group, Solanum aethiopicum