Publications (8047)
ARTICLE
On the solvability of discrete nonlinear two-point boundary value problems
B. Koné, S. Ouaro
We prove the existence and uniqueness of solutions for a family of discrete boundary value problems by using a discrete Wirtinger inequality. The boundary condition is a combination of Dirichlet and Neumann boundary conditions
discrete nonlinear two-point boundary value problems; discrete Wirtinger inequality; Dirichlet and Neumann boundary conditions
ARTICLE
Carotenoids content and antibacterial activity from galls of Guiera senegalensis JF Gmel (combretaceae).
Sombie Pierre Alexandre Eric Djifaby, Coulibaly Ahmed Yacouba,Hilou Adama,Konate Kiessoum, Compaore Moussa Marie-Hyacinthe, Nacoulma Odile Germaine
Guiera senegalensis is a well known medicinal plant which is used as a drug in Burkina Faso. The purpose of the present study was to investigate the carotenoids content and antibacterial activity from galls of Guiera senegalensis. The hydroacetonic extract (HAE) exhibited the highest of β-carotene (4.67±0.25 mg/g) and lycopene (0.99±0.0735 mg/(...)
Guiera senegalensis, Galls, Antibacterial activity, carotenoid content
ARTICLE
Study of the influence of roof insulation involving local materials on cooling loads of houses built of clay and straw
D. Y.K. Toguyeni, O. Coulibaly, A. Ouedraogo, J. Koulidiati, Y. Dutil, D. Rousse
This paper
Hot plate method Roof influence Clay–straw mixture TRNSYS model Air conditioning load Dry tropical climat
ARTICLE
Dynamique et stratégies de conservation de la végétation et de la phytodiversité du complexe écologique du parc national du W du Burkina Faso
Blandine Marie Ivette NACOULMA
Dans les régions tropicales, les populations dépendent étroitement des écosystèmes de savanes pour leur subsistance. Cependant, dans ces dernières décennies, les savanes ouest- africaines sont sujettes à des changements d’utilisation des terres consécutifs à la pression démographique et à l’intérêt grandissant accordé aux cultur(...)
Phytodiversité, type de végétation, syntaxonomie, utilisation des terres, facteurs environnementaux, espèces à valeur socio-économique, Parc National W
ARTICLE
Impact de trois techniques de restauration des sols sur la survie et la croissance de trois espèces ligneuses sur les «zipellés» au Burkina Faso
François Wenemi KAGAMBEGA, Salifou TRAORE, Adjima THIOMBIANO, Joseph Issaka BOUSSIM
Page 1. Available online at http://ajol.info/index.php/ijbcs Int. J. Biol. Chem. Sci. 5(3):
901-914, June 2011 ISSN 1991-8631 © 2011 International Formulae Group. All rights
reserved. Original Paper http://indexmedicus.afro.who.int Impact de trois techniques de
restauration des sols sur la survie et la croissance de trois espèces lign(...)
Mots clés non renseignés
ARTICLE
Phytochemistry and Biological Activities of Extracts from Two Combretaceae Found in Burkina Faso: Anogeissus Leiocarpus (DC) Guill. and Perr. And Combretum Gl...
SORE H., HILOU A., SOMBIE Pierre A. E. D., COMPAORE M., MEDA R., MILLOGO J. and NACOULMA O. G.
Many studies indicate that Combretaceae species are commonly used in Africa to treat various diseases. Nonetheless, no phytochemical and/or biological activity data are available from species found in Burkina Faso to secure their ethnomedicinal uses. In addition, drugs derived from these species, especially those of the genus Combretum, are so(...)
Antibacterial activity, Phytochemistry, Anogeissus leiocarpus, Combretum glutinosum
ARTICLE
Separating competition-related factors limiting crop performance in an agroforestry parkland system in Burkina Faso
H. BAZIE
To address tree–soil–crop interactions in the Sahel, we examined the growth-limiting factors (water, light and mineral nutrients) of Sorghum bicolor growing under trees in agroforestry parklands of Burkina Faso. Growth and yields of sorghum were measured after (1) pruning crowns of Vitellaria paradoxa and Parkia biglobosa trees, and (2) applyi(...)
Mots clés non renseignés
ARTICLE
Arsenic levels in tube-wells water, food, residents' urine and the prevalence of skin lesions in Yatenga province, Burkina Faso
Issa T. Somé,1 Abdoul K. Sakira, Moustapha Ouédraogo, Theodore Z. Ouédraogo, Adama Traoré, Blaise Sondo and Pierre I. Guissou2
The aim of the present study was to evaluate the levels of arsenic in tube-well water, food and residents' urines samples in Yatenga province, Burkina Faso. The prevalence of skin lesions was evaluated as well. The study was cross-sectional in design. It was conducted during April 2009. Permanent residents of 20 villages were included in the s(...)
Mots clés non renseignés
ARTICLE
Understanding the interactions between artemisinin and cyclodextrins: spectroscopic studies and molecular modeling)
Hermine Zime-Diawara • Georges Dive • Géraldine Piel • Mansourou Moudachirou • Michel Frederich • Joëlle Quetin-Leclercq • Brigitte Evrard
Artemisinin extracted from Artemisia annua L.
proved to be currently, with its derivatives, the most effective
drugs against simple and severe malaria, and is also effective
on the chloroquine-resistant forms. The advantageous effect
of some cyclodextrins (CDs) on artemisinin solubilization
was demonstrated by different authors. The prese(...)
Artemisinin, Cyclodextrins, Non-inclusion complexes, Solubilization, Molecular modeling
ARTICLE
Calcul de composition de plasmas thermiques d’arc électrique de mélanges d’air et de vapeur d’eau
Abdoul Karim Kagoné, Zacharie Koalaga et François Zougmoré
La composition de plasmas thermiques d’arcs électriques de mélanges d’air et de vapeur d’eau dans une gamme de température électronique allant de 5000 à 30 000 K est calculée pour des pressions de 1, 5 et 10 atm (1 atm = 101,325 kPa). Les plasmas étudiés étant considérés hors d’équilibre thermique, le calcul de la composition est effectué pour(...)
Plasma, arc électrique, composition, déséquilibre thermique
ARTICLE
Seroprevalence and incidence of transfusion-transmitted infectious diseases among blood donors from regional blood transfusion centres in Burkina Faso, West Africa
Bolni Marius Nagalo, Cyrille Bisseye, Mahamoudou Sanou, Kisito Kienou, Yacouba K. Nebié, Alice Kiba, Honorine Dahourou, Siaka Ouattara, Jean Baptiste Nikiema, Rémy Moret, Jean Didier Zongo, Jacques Simpore
Background and objective: The high prevalence of numerous transfusion-transmitted infectious diseases such as HIV, HBV, HCV and syphilis in sub-Saharan Africa affects blood safety for transfusion recipients. The aim of this study was to evaluate the prevalence and incidence of transfusion-transmissible infectious diseases among blood donors in(...)
Seroprevalence; Incidence; Blood donors; Transfusion-transmitted infections; HIV; HBV; HCV; Syphilis; Burkina Faso
ARTICLE
3D determination of the minority carrier lifetime and the p-n junction recombination velocity of a polycrystalline silicon solar cell
R Sam, B Zouma, F Zougmoré, Z Koalaga, M Zoungrana and I Zerbo
This work presents a theoretical and experimental transient tri-dimensional study conducted for the determination of the bulk component of the minority carrier lifetime and the p-n junction recombination velocity of a bifacial polycrystalline silicon solar cell. The theoretical analysis is based on the columnar model of the grains in the polyc(...)
Mots clés non renseignés
ARTICLE
Silicon solar cell under electromagnetic wave in steady state: effect of the telecommunication source's power of radiation
I Zerbo, M Zoungrana, A D Seré, F Zougmoré
The characterisation of minority carriers’ recombination parameters is important to design any optoelectronic component, since they play an important role in the device performance. Many diagnostic techniques, steady state, quasi-steady state, transient and modulation methods for both the experimental and theoretical measurement have been deve(...)
Mots clés non renseignés
ARTICLE
3D modelling of magnetic field and light concentration effects on a bifacial silicon solar cell illuminated by its rear side
M Zoungrana, I Zerbo, F Ouédraogo, B Zouma, F Zougmoré
According to their installation places, the solar cells are often under the effect of the electro-magnetic field coming from outside sources as telecommunication antennas, radio antennas... These magnetic fields have a big influence on the distribution and mobility of charge carriers in the base of the solar cell and therefore on its efficienc(...)
Mots clés non renseignés
ARTICLE
In vitro Antioxidant and Anti‐inflammatory Activities of Extracts from Nicotiana tabacum L. (Solanaceae) Leafy Galls Induced by Rhodococcus fascians
Aminata P. Nacoulma, Moussa Compaoré, Manuella de Lorenzi, Martin Kiendrebeogo and Odile G. Nacoulma
Plant galls are widely distributed, and their extracts are used in traditional medicine worldwide. Traditional remedies containing extracts of plant galls in China, India and some African countries have effective in the treatment of various pathologies. To open a new promising procedure for screening bioactive compounds from plant galls, stand(...)
Nicotiana tabacum, Rhodococcus fascians, leafy galls, anti-inflammatory activity, antioxidant capacity