Publications (5588)
ARTICLE
Modélisation à 3-D de l’influence de la taille des grains et de la vitesse de recombinaison aux joints de grain sur une photopile au silicium poly cristallin sous éclairement concentré
M. Zoungrana, I. Zerbo, F.I. Barro, R. Sam, F. Touré, M.L. Samb and F. Zougmoré
Dans cet article, nous présentons une modélisation à 3 dimensions de l’influence de la taille de grains, de la vitesse de recombinaison aux joints de grain et du champ électrique de gradient de concentration sur la distributions des porteurs de charge (électrons), les paramètres électriques (Jph, Vph, Pél) et électronique (Sb) d’une photopile(...)
Silicium polycristallin, Champ électrique, Eclairement intense, Photo courant, Photo tension, Vitesse de recombinaison, Puissance électrique
ARTICLE
Thermal Degradation of Polyethylene Bags and Millet Stalks: Influence of the Temperature and the Local Concentration of Oxygen on the Conversion Rate of Carbon.
Salifou K. Ouiminga, Thomas Rogaume, Tizane Daho, Franck Richard, Jean Koulidiati.
This paper concerns the influence of temperature and local concentration of oxygen on the conversion efficiency of carbon into CO, CO2, CH4, C3H8, C2H4, C2H2, C2H6, C6H6, during the thermal degradation of plastic bags and millet stalks. The experimental device used is the tubular kiln, coupled to an analyzer Fourier Transform Infrared (FTIR) a(...)
Carbon; Oxygen; Pyrolysis; Combustion; Conversion Rate
ARTICLE
Homozygous Deletion of an EGR2 Enhancer in Congenital Amyelinating Neuropathy
Benoit Funalot, Piotr Topilko, Maria Antonia Ramos Arroyo, Abdelaziz Sefiani, E. Tessa Hedley-Whyte, Maria E. Yoldi, Laurence Richard, Estelle Touraille, Mathieu Laurichesse, Emmanuel Khalifa, Jasmine Chauzeix, Adama Ouedraogo, Didier Cros, Corinne Magdelaine, Franck G. Sturtz, J. Andoni Urtizberea, Patrick Charnay, Federico Garcia Bragado and Jean-Michel Vallat
The transcription factor EGR2 is expressed in Schwann cells, where it controls peripheral nerve myelination. Mutations of EGR2 have been found in patients with congenital hypomyelinating neuropathy or Charcot–Marie–Tooth disease type 1D. In a patient with congenital amyelinating neuropathy, we observed pathological abnormalities recapitulatin(...)
Mots clés non renseignés
ARTICLE
Thermal degradation of polyethylene bags and millet stalks : influence of the temperature and the local concentration of oxygen on the conversion rate of carbon
Salifou K. Ouiminga, Thomas Rogaume, Tizane Daho, Franck Richard and Jean Koulidiati
This paper concerns the influence of temperature and local concentration of oxygen on the conversion efficiency of
carbon into CO, CO2, CH4, C3H8, C2H4, C2H2, C2H6, C6H6, during the thermal degradation of plastic bags and millet
stalks. The experimental device used is the tubular kiln, coupled to an analyzer Fourier Transform Infrared (FTIR)(...)
Carbon, Oxygen, Pyrolysis, Combustion
ARTICLE
Collision-induced dissociation of flavonoid 7-O-diglycoside cations: elucidation of important structural motifs by selection of the cationizing reaction
Ousmane Ilboudo, Issa Tapsoba, Yvonne L Bonzi-Coulibaly, Pascal Gerbaux
Flavonoids are ubiquitous molecules in nature and are found in almost all plants, including fruits and vegetables. Although flavonoids are structurally similar, subtle differences in their structures lead to important changes in their biological activities. Over years, mass spectrometry has become an ideal tool for the characterization of thos(...)
Mots clés non renseignés
ARTICLE
Contribution au dimensionnement d’un prototype de four de potier à tirage d’air naturel
Salifou Koucka Ouiminga, Thomas Rogaume, Tizane Daho, Franck Richard, Jean Koulidiati
Le présent travail concerne l’étude de l’influence des paramètres géométriques d’un four de potier, sur
les rendements des émissions gazeuses polluantes, afin d’aider au dimensionnement de fours plus respectueux de
l’environnement. Au cours de ces investigations, les émissions de NO, CO2, O2 et N2 ont été suivies. Les fours
de potier consid(...)
Four de potier, modélisation, simulation numérique
ARTICLE
Hemoglobins S and C interfere with actin remodeling in Plasmodium falciparum–infected erythrocytes
K. SIMPORE
The hemoglobins S and C protect carriers from severe Plasmodium falciparum malaria. Here, we found that these hemoglobinopathies affected the trafficking system that directs parasite-encoded proteins to the surface of infected erythrocytes. Cryoelectron tomography revealed that the parasite generated a host-derived actin cytoskeleton within th(...)
Mots clés non renseignés
ARTICLE
Antioxidant and anti-inflammatory effects of Scoparia dulcis L.
M. KIENDREBEOGO
Different extracts were obtained from Scoparia dulcis L.(Scrophulariaceae) by successive extraction with hexane, chloroform, and methanol. These extracts exhibited significant antioxidant capacity in various antioxidant models mediated (xantine oxidase and lipoxygenase) or not mediated (2, 2-diphenyl-picrylhydrazyl, ferric-reducing antioxidant(...)
Mots clés non renseignés
ARTICLE
Impacts of land-use on West African savanna vegetation: a comparison between protected and communal area in Burkina Faso
A. THIOMBIANO
Biodiversity 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 vegetation and biodiversity. This study assesses t(...)
Mots clés non renseignés
ARTICLE
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. Traore
The 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 water) from the barks of Lannea acida, Lannea microc(...)
Mots clés non renseignés
ARTICLE
WEAK SOLUTIONS FOR ANISOTROPIC NONLINEAR ELLIPTIC PROBLEM WITH VARIABLE EXPONENT AND MEASURE DATA
Blaise Kone , Stanislas Ouaro and Safimba Soma
We 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 anisotropic nonlinear elliptic problem with different vari- able exponents,(...)
Generalized Lebesgue-Sobolev spaces, anisotropic Sobolev spaces, weak solution, bounded Radon measure, electrorheological fluids, Marcinkiewicz spaces
ARTICLE
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. Nacoulma
Stereospermum 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 acetone extract were evaluated. In the phytochemical(...)
Stereospermum kunthianum, antioxidant activity, diuretic activity, flavonoid and polyphenol, HPLC–MS
ARTICLE
The Ironical Figure of Reuben Bourne in Nathaniel Hawthorne’s “Roger Malvin’s Burial”
PODA Michel
The 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. He
is but a wounded hero, whose real capacity cannot ma(...)
outstanding hero, wounded hero, selflessness, selfishness, vow, curse, the ego, the other
ARTICLE
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. TRAORE
La 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 fermentation spontanée de la sève de rônier.L’étude de la composi(...)
Mots clés non renseignés
ARTICLE
Approche participative et gouvernance locale des ressources forestières dans la forêt classée de Tuy : atouts et contraintes
DIPAMA Jean-Marie
Partout 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 préjudices suite à une exploitation de plus en plus accrue, souvent(...)
Burkina Faso, Tuy, forêt classée, gestion participative, ressources naturelles, environnement