Publications (5580)
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Impacts of land-use on West African savanna vegetation: a comparison between protected and communal area in Burkina Faso
A. THIOMBIANOBiodiversity matters in many aspects for human well-being by providing timber and non-timber products. The most important ecosystems providing these products in West Africa are savannas. In the context of land-use changes, there is an urgent need to understand the impact of land-use on savanna...
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Antioxidant and Antibacterial Activities of Three Species of Lannea from Burkina Faso
L. Ouattara, J. Koudou, C. Zongo, N. Barro, A. Savadogo, I.H.N. Bassole, A.S. Ouattara and Alfred S. TraoreThe main goal of this study was to determine the phenol content, the antibacterial and the antioxidant activities of the three species of Lannea largely use in traditional medicine in Burkina Faso. The total phenolic and flavonoid contents of hydro alcoholic extract (70%V/V ethanol/distilled...
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WEAK SOLUTIONS FOR ANISOTROPIC NONLINEAR ELLIPTIC PROBLEM WITH VARIABLE EXPONENT AND MEASURE DATA
Blaise Kone , Stanislas Ouaro and Safimba SomaWe study in this paper the anisotropic nonlinear boundary value problem
N ∂ ∂u
− ∑∂x ai x,∂x =μ in Ω, u=0 on ∂Ω, where Ω is a smooth bounded open
i=1i i
domain in RN , N ≥ 3 and μ a bounded Radon measure. We prove the existence of a weak energy solution for this...
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Antioxidant, diuretic activities and polyphenol content of Stereospermum kunthianum Cham.(Bignoniaceae)
M. Compaoré, A. Lamien-Meda , C. Mogoşan, C.E. Lamien, M. Kiendrebeogo, O. Voştinaru, L. Vlase, C. Ionescu & O.G. NacoulmaStereospermum kunthianum was used for biological and phytochemical investigations. In biological studies, antioxidant activities were investigated with water, methanol and aqueous acetone extracts. Furthermore, the xanthine oxidase inhibitory activity and the diuretic activity of an aqueous...
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The Ironical Figure of Reuben Bourne in Nathaniel Hawthorne’s “Roger Malvin’s Burial”
PODA MichelThe figure of Reuben Bourne in “Roger Malvin’s Burial” by
Nathaniel Hawthorne is quite striking. Appearing as the fictional duplicate of
a classical knight hero, endowed with bravery, self-denial and sense of
honour, he falls short of the reader’s expectations in the course of events....
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Biodiversite Microbienne et Paramètres Physico-Chimiques de Quelques Vins de Ronier (Borassus Akeassii) Produits Traditionnellement au Burkina Faso
François TAPSOBA, A SAVADOGO, K.M. SOMDA, C. ZONGO, N. BARRO, S.A. TRAORELa présente étude traite de la biodiversité microbienne et des paramètres physico-chimiques de quelques vins de rônier produits traditionnellement au Burkina Faso. Elle a consisté à la détermination des paramètres physico-chimiques et microbiologiques du vin de rônier issu de la...
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Approche participative et gouvernance locale des ressources forestières dans la forêt classée de Tuy : atouts et contraintes
DIPAMA Jean-MariePartout en Afrique sahélienne, le souci de préserver la biodiversité dans certains écosystèmes avait amené les pouvoirs publics à prendre en charge la gestion des ressources naturelles dont les forêts classées. Mais, pour des raisons diverses, ces enclaves subissent d’énormes...
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Effects of various cooking methods and food components on bioaccessibility of mercury from fish
Ousséni Ouédraogo, Marc AmyotFish consumption is the main source of human exposure to mercury. Studies from specific human populations have reported Hg levels lower than those modeled from consumption data These discrepancies between expected and measured Hg levels may be explained by differences in dietary habits such as...
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Phenolic compounds and antioxidant activities in some fruits and vegetables from Burkina Faso
Romaric G. Bayili , Fatoumata Abdoul-Latif , Oumou H. Kone , Mamounata Diao , Imael H. N. Bassole and Mamoudou H. DickoLevels of total phenolic compounds (TPC), proanthocyanidins (PAs) and antioxidant activities among sixteen fruits and vegetables commonly consumed in Burkina Faso were determined. Levels of TPC ranged from 0.21 to 3.33 mg of gallic acid equivalent per gram of fresh matter....
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Phenolic compounds and antioxidant activities in some fruits and vegetables from Burkina Faso
121. BAYILI Romaric G., Fatoumata ABDOUL-LATIF, Oumou H. KONE, Mamounata DIAO, Imael H. N. BASSOLE, and Mamoudou H. DICKOLevels of total phenolic compounds (TPC), proanthocyanidins (PAs) and antioxidant activities among sixteen fruits and vegetables commonly consumed in Burkina Faso were determined. Levels of TPC ranged from 0.21 to 3.33 mg of gallic acid equivalent per gram of fresh matter. The highest contents...
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3D STUDY OF BIFACIAL SILICON SOLAR CELL UNDER INTENSE LIGHT CONCENTRATION AND UNDER EXTERNAL CONSTANT MAGNETIC FIELD.
M. ZOUNGRANA, I. ZERBO, A. SERE, B. ZOUMA AND F. ZOUGMOREThis work presents a three-dimensional study of bifacial silicon solar cell under intense light concentration and under constant magnetic field. This approach is based on the resolution of the minority continuity equation, taking into account the distribution of the electric field in the bulk...
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Influence d’une onde électromagnétique sur une photopile au silicium sous éclairement multi spectral en régime statique
I. Zerbo, M. Zoungrana, A.D. Seré, F. Ouedraogo, R. Sam, B. Zouma et F. ZougmoréDans ce travail, nous étudions l’influence d’une onde électromagnétique produite par une source de télécommunication (antenne émettrice) de puissance donnée sur le comportement d’une photopile en régime statique, éclairée par une lumière blanche et placée à une certaine...
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Weak and entropy solutions to nonlinear Neumann boundary-value problems with variable exponents
Stanislas Ouaro and Safimba SomaIn this article, we study the following nonlinear Neumann boundary-value problem diva(x,ru)þjujp(x)2 u1⁄4f in , @u 1⁄4 0 on @, where is a
@
smooth bounded open domain in RN, N 3, @u is the outer unit normal @
derivative on @, div a(x, ru) a p(x)-Laplace type operator. We...
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Données climatiques de base pour le dimensionnement des installations de refroidissement en climat tropical sec. Application à un bâtiment à Ouagadougou, Burkina Faso
O. Coulibaly, A. Ouedraogo, J. Koulidiati, A.J. GARANEOn détermine dans cette étude...
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Nutraceutical Assessment of Four Amaranthus Species from Burkina Faso
Ouedraogo Ibrahim, Hilou Adama, Sombie Pierre Alexandre Eric Djifaby, Compaore Moussa, Millogo Jeanne and Nacoulma Odile GermaineThe use of the amaranths as vegetables is developed in Burkina Faso. Most known are Amaranthus dubius Mart. Ex. Thell, Amaranthus graecizans L., Amaranthus hybridus L. and Amaranthus viridis L. A. hybridus is most used and abundantly cultivated, however the others are more or less wild. Theaim...