Publications (5742)
ARTICLE
Les perceptions économiques de non adoption des variétés de semences améliorées dans la commune de Banfora
FAYAMA Tionyélé et MAIGA Alkassoum
Néant
Mots clés non renseignés
ARTICLE
Antioxidant Screening and Polyphenols profiling of Ipomoea asarifolia (Desr.) Roem. & Schult (Convolvulaceae)
MEDA Nâg-Tiero Roland, COMPAORE Moussa, BANGOU Mindiédiba Jean, VLASE Laurian, KIENDREBEOGO Martin, OUEDRAOGO Anicet Georges
Ipomoea asarifolia est largement utilisé en Afrique dans le traitement de diverses maladies. Au Burkina Faso, cette plante est bien utilisée en médecine traditionnelle pour traiter le paludisme, les convulsions et les rhumatismes. Pour cela, les fractions organiques de l'extrait hydroacétonique de I. asarifolia ont été sélectionnées pour leur(...)
Polyphenols, Antioxidant activity, Ipomoea asarifolia, HPLC-MS
ARTICLE
Entropy Solution to Nonlinear Elliptic Problem with Non-local Boundary Conditions and L1-data
OUARO Stanislas and SOMA Safimba
We study a nonlinear elliptic problem with non-local boundary conditions and L1-data. We prove an existence and uniqueness result of an entropy solution.
: Entropy solution; non-local boundary conditions; Leray-Lions operator.
ARTICLE
Spatially explicit multi-threat assessment of food tree species in Burkina Faso: A fine-scale approach
B. NACOULMA
Over the last decades agroforestry parklands in Burkina Faso have come under increasing demographic as well as climatic pressures, which are threatening indigenous tree species that contribute substantially to income generation and nutrition in rural households. Analyzing the threats as well as the species vulnerability to them is fundamental(...)
Mots clés non renseignés
ARTICLE
3-D modeling of grains sizes effects on polycrystalline silicon solar cell under intense light illumination
Mahamadi SAVADOGO, Martial ZOUNGRANA, Issa ZERBO, Boubacar SORO, Dieudonné Joseph BATHIEBO
This work presents a 3D modelling study of the effect of grain size on the electrical parameters such as maximum electric power, fill factor and conversion efficiency, of a polycrystalline silicon solar cell.
To study effects of grains size on the performance of the polycrystalline silicon solar, we used in our model variables silicon grain s(...)
Conversion efficiency, fill factor, grain size, intense light, maximum electric power, polycrystalline solar cell
ARTICLE
A theoretical study of radio wave attenuation through a polycrystalline silicon solar cell
Adama OUEDRAOGO, Vinci de Dieu Bokoyo BARANDJA1, Issa ZERBO, Martial ZOUNGRANA, Emmanuel Wendsongré RAMDE, Dieudonné Joseph BATHIEBO
One-dimensional study of both electronic and electrical parameters of a silicon solar cell in the presence or not of an electric eld, a magnetic eld, or an electromagnetic eld does not take into account the grain size and the grain boundary recombination velocity. A three-dimensional study, on the contrary, takes those factors into account.(...)
Attenuation, radio wave, polycrystalline silicon solar cell, equations of Maxwell, monochromatic illumination
ARTICLE
EPIDEMIOLOGY AND ANTIBIOTIC RESISTANCE PHENOTYPES OF DIARRHEAGENIC ESCHERICHIA COLI RESPONSIBLE FOR INFANTILE GASTROENTERITIS IN OUAGADOUGOU, BURKINA FASO
Ali Konaté, René Dembélé, Nathalie K. Guessennd, Fernique Konan Kouadio, Innocent Kouamé Kouadio, Mohamed Baguy Ouattara, Wendpoulomdé A. D. Kaboré, Assèta Kagambèga, Haoua Cissé, Hadiza Bawa Ibrahim, Touwendsida Serge Bagré, Alferd S. Traoré, Nicolas Barro
The emergence and persistence of multidrug-resistant (MDR) diarrheagenic Escherichia coli (DEC) causing acute diarrhea is a major public health challenge in developing countries. The aim of this study was to evaluate the resistance phenotypes of DEC isolated from stool samples collected from children less than 5 years of age with acute diarrhe(...)
children, diarrheagenic Escherichia coli, antibiotic, phenotype, MDR, PCR, Burkina Faso
ARTICLE
EBV and HHV-6 Circulating Subtypes in People Living with HIV in Burkina Faso, Impact on CD4 T cell count and HIV Viral Load
Lassina Traoré, Ouéogo Nikiema, Abdoul Karim Ouattara, Tegwindé Rébéca Compaoré, Serge Théophile Soubeiga, Birama Diarra, Dorcas Obiri-Yeboah, Pegdwendé Abel Sorgho, Florencia Wendkuuni Djigma, Cyrille Bisseye, Albert Théophane Yonli, Jacques Simpore
Abstract. Epstein Barr Virus (EBV) and Human Herpes Virus 6 (HHV-6) are responsible for severe diseases, particularly in immunocompromised persons. There is limited data of the infection of these opportunistic viruses in Burkina Faso. The purpose of this study was to characterize EBV and HHV-6 subtypes and to assess their impact on CD4 T cell(...)
EBV, HHV-6, HIV-1, subtype, CD4 T cell count, viral load, and treatment
ARTICLE
Enhanced extraction of flavonoids from Odontonema strictum leaves with antioxidant activity using supercritical carbon dioxide fluid combined with ethanol
OUEDRAOGO Jean Claude W., DICKO Cedric, KINI Félix B., BONZI-COULIBALY Yvonne L., DEY Estera Szwajcer
Flavonoids were extracted from Odontonema strictum leaves by supercritical carbon dioxide, with ethanol. The effect of three independents variables (time, pressure and temperature) on the Total Flavonoid Content (TFC) were optimized by factorial investigation. The TFC and flavonoid recovery varies respectively from 99.33 to 247.78 mg/g of drie(...)
Odontonema strictum; Supercritical fluid extraction; Total flavonoid content; Response surface methodology; Antioxidant activity
ARTICLE
Problématique des haies mortes dans le paysage agraire de la Province du Sourou au, Burkina Faso
Joséphine YAMEOGO, Patrice ZERBO, Mamounata BELEM O.
Cet article de 13 pages, 04 tableaux, 06 figures et 16 références vise à connaître la pratique des haies mortes de la province du Sourou et son importance pour une gestion durable des ressources végétales. En effet, le paysage agraire de cette localité est marqué par l’omniprésence des haies mortes. Pour ce faire des interviews de groupes et i(...)
Haies mortes, abandon, restauration, Sourou
ARTICLE
Problématique des haies mortes dans paysage agraire de la province du Sourou au Burkina Faso
Yaméogo Josephine, Zerbo Patrice et Mamounata Bélem/O,
Le paysage agraire de la province du Sourou est marqué par l’omniprésence des haies mortes. Elles constituent un problème à la gestion durable des ressources végétales. Cette étude vise globalement à connaître la pratique et son importance pour une gestion durable des ressources végétales. De façon spécifique il s’est agi de permettre une bonn(...)
Haies mortes, Abandon, Restauration, Sourou
ARTICLE
Problématique des haies mortes dans le paysage agraire de la Province du Sourou au, Burkina Faso
Joséphine YAMEOGO, Patrice ZERBO, Mamounata BELEM O.
Problématique des haies mortes dans le paysage agraire de la Province du Sourou au, Burkina Faso
Cet article de 13 pages, 04 tableaux, 06 figures et 16 références vise à connaître la pratique des haies mortes de la province du Sourou et son importance pour une gestion durable des ressources végétales. En effet, le paysage agraire de cette loc(...)
Haies mortes, abandon, restauration, Sourou
ARTICLE
3-D Modeling of Temperature Effect on a Polycrystalline Silicon Solar Cell under Intense Light Illumination
Boubacar Soro, Martial Zoungrana, Issa Zerbo, Mahamadi Savadogo, Dieudonné Joseph Bathiebo
The efficiency of a silicon solar cell is directly linked to the quantity of carrier photogenerated in its base. It increases with the increase of the quantity of carrier in the base of the solar cell. The carrier density in the base of the solar
cell increases with the increase of the flux of photons that crosses the solar cell. One of the m(...)
Intense Light, Electric Field, Temperature, Diffusion Coefficient, Diffusion Length, Density of Carriers
ARTICLE
Comparative biology parameters of Q1 and Q3 genotypes of Bemisia tabaci MED (Hemiptera: Aleyrodidae) on two host plants in Burkina Faso, West Africa
Rahim Romba & Olivier Gnankiné
The biological parameters studies on Bemisia tabaci MED Q1 and Q3 genotypes in tropical areas are very scarce and could provide interesting insights for pest management programmes. The life history traits and demographic parameters of Q1 and Q3 genotypes of B. tabaci MED (Gennadius) were studied on Lantana camara (L.) and Solanum incanum (L.)(...)
Bemisia tabaci MED, Q1 genotype, Q3 genotype, life history traits
ARTICLE
Evaluation of global solar radiation from meteorological data in the Sahelian zone of Chad
Marcel Hamda Soulouknga, Ousmane Coulibaly, Serge Yamigno Doka and Timoleon Crepin Kofane
The study focuses on the evaluation of global solar radiation on a horizontal level. The estimate of the solar layer was
made on the basis of mathematical model obtained from the relations of Angstrom–Prescott, Allen and Sabbagh.
The different proposed models have been implemented by using MATLAB and Excel. The models were evaluated
using M(...)
Global solar radiation, Meteorological parameters, Climatic zones