Publications (8047)
ARTICLE
Dimension socioculturelle du baobab Adansonia digitata L. dans le Plateau central du Burkina Faso
BATIONO Babou André, Alkassoum MAIGA, COMPAORE Pascal, KALINGANIRE Antoine
Néant
Mots clés non renseignés
ARTICLE
Existence and uniqueness of entropy solutions to nonlinear elliptic problems with variable growth
S. Ouaro, S. traoré
The authors study the boundary value problem
{u−div(a(x,∇u))=fu=0inΩ,onΩ,
where Ω is a smooth bounded domain in RN(N≥3) and div(a(x,∇u)) is a p(x)-Laplace type operator. The main results presented are Theorems 3.2 and 4.3, obtained by using variational arguments, which establish the existence and uniqueness of weak energy solutions, for f∈L∞(...)
generalized Lebesgue-Sobolev space; weak energy solution; entropy solution; p(x)-Laplace operator; electrorheological fluid
ARTICLE
Regeneration of five Combretaceae species along a latitudinal gradient in Sahelo-Sudanian zone of Burkina Faso
A. THIOMBIANO
Seedling density and the regeneration mechanisms of five tree species, Anogeissus leiocarpa, Combretum aculeatum, Combretum micranthum, Combretum nigricans, and Pteleopsis suberosa were investigated in relation to latitudinal gradient across the Sahelo-Sudanian zone of West Africa.
Mots clés non renseignés
ARTICLE
Entropy solutions for a doubly nonlinear elliptic problem with variable exponent.
B. K. Bonzi, S. Ouaro
The nonlinear boundary value problem with a p(x)-Laplace type operator under Dirichlet boundary condition is studied. The condition of regularity is relaxed on the variable exponent p(⋅) and on the function b appearing in the governing equation. Although the existence and uniqueness of weak energy solution presented in Section 3 is trivial, an(...)
generalized Lebesgue-Sobolev spaces; weak energy solution; entropy production; p(x)-Laplace operator
ARTICLE
Genetic variation in human HBB is associated with Plasmodium falciparum transmission
Gouagna LC, Bancone G, Yao F, Yameogo B, Dabiré KR, Costantini C, Simpore J , Ouedraogo JB, Modiano D.
Genetic factors are known to have a role in determining susceptibility to infectious diseases 1, 2, although it is unclear whether they may also influence host efficiency in transmitting pathogens. We examine variants in HBB that have been shown to be protective against malaria 3 and test whether these are associated with the transmission of t(...)
HBB, Plasmodium
ARTICLE
Une méthode mécanique pour mesurer la pression de vapeur d’équilibre de l’eau dans un milieu complexe
Samuel Ouoba, Bruno Cousin, Fabien Cherblanc, Jean-Claude Bénet
Cette Note présente une nouvelle méthode pour déterminer la pression de vapeur d’équilibre de l’eau dans un milieu complexe. On entend par «milieu complexe » un milieu où des interactions physico-chimiques modifient les propriétés thermodynamiques de l’eau notamment son activité et sa pression de vapeur d’équilibre. La méthode présentée consis(...)
Milieux poreux, Activité de l’eau, Isotherme de sorption/désorption
ARTICLE
Incidence of tuberculosis after HAART initiation in a cohort of HIV-positive patients in Burkina Faso
M. Dembélé, N. Saleri, A.C.C. Carvalho, T. Saouadogo, A.D. Hien, I. Zabsonre, S.T. Koala, J. Simporé, A. Matteelli
Objective: To determine the incidence rates of tuberculosis (TB) after the initiation of highly active antiretroviral treatment (HAART).
Methods: We conducted a retrospective cohort study on four human immunodeficiency virus (HIV) treatment centres in Ouagadougou, Burkina Faso. TB incidence was measured at different intervals after HAART in(...)
Tuberculose, VIH, HAART, incidence, Burkina Faso, CD4, IMC, épidémiologie, soins cliniques
ARTICLE
Antimicrobial and antioxidant activities of essential oil and methanol extract of Jasminum sambac from Djibouti
Fatouma Abdoul-Latif , Prosper Edou , François Eba , Nabil Mohamed , Adwa Ali , Samatar Djama , Louis-Clément Obame , Ismael Bassolé 5 and Mamoudou Dicko
The essential oil was subjected to screening for their possible antioxidant activity by two
complementary test systems, namely DPPH free radical scavenging and -carotene-linoleic acid
assays. Butylated hydroxytoluene (BHT) was used as positive control in both test systems. In the DPPH
test system, the IC(...)
Jasminum sambac, antimicrobial activity, antioxidant activity, essential oil
ARTICLE
Regulation by CRAMP of the responses of murine peritoneal macrophages to extracellular ATP
E. KABRE
Peritoneal macrophages were isolated from wild type (WT) mice and from mice invalidated for the P2X7 receptor (KO) which had been pretreated with thioglycolate. In cells from WT mice, 1 mM ATP increased the intracellular concentration of calcium ([Ca2+] i), the uptake of ethidium bromide, the production of reactive oxygen species (ROS), the se(...)
Mots clés non renseignés
ARTICLE
Etude morphologique comparative de cinq variétés de gombo [Abelmoschus esculentus (L.) Moench] soumises à un stress hydrique
Nana Rasmata, Tamini Zoumbiessé, Sawadogo Mahamadou et Somé Pépin Patrice
L’impact d’un stress hydrique intervenu au stade végétatif et au stade floraison sur la croissance de cinq variétés de gombo a été étudié sous serre. L’application des différents stress hydriques a consisté à suspendre l’arrosage des plantes, respectivement du 32ème au 45ème jour après semis et à partir de 50% des plantes en fleur et ceci pend(...)
stress hydrique, croissance, stade végétatif, stade floraison
ARTICLE
Tailoring the Hydrophobic Character of Mesoporous Silica by Silylation for VOC Removal
Isabelle Batonneau-Gener, Arsène Yonli, Adeline Trouvé, Samuel Mignard, Matteo Guidotti, Maila Sgobba
MCM-41 and non-ordered mesoporous silica were modified using hexamethyl-disilazane (HMDS). The hydrophobic and hydrophilic properties of grafted materials were studied and compared to a purely all silica BEA zeolite by using competitive and noncompetitive water toluene adsorption. A linear correlation between the silylation degree and the hydr(...)
Mots clés non renseignés
ARTICLE
Antimicrobial and antioxidant activities of essential oil and methanol extract of Jasminum sambac from Djibouti
127. ABDOUL-LATIF Fatouma, P Edou, F Eba, N Mohamed, A Ali, S Djama, LC Obame, INHl Bassolé, Mamoudou H. DICKO
The essential oil of jasminum sambac from Djibouti was subjected to screening for their possible antioxidant activity by two complementary test systems, namely DPPH free radical scavenging and beta-carotene-linoleic acid assays. Butylated hydroxytoluene (BHT) was used as positive control in both test systems. In the DPPH test system, the IC50(...)
Jasminum sambac, antimicrobial activity, antioxidant activity, essential oil
ARTICLE
Structural stability for variable exponent elliptic problems. I: The p(x)-Laplacian kind problems
B. Andreianov, M. Bendahmane, S. Ouaro
We study the structural stability (i.e., the continuous dependence on coefficients) of solutions of the elliptic problems under the form
b(un)−divan(x,∇un)=fn.
The equation is set in a bounded domain Ω of ℝN and supplied with the homogeneous Dirichlet boundary condition on ∂Ω. Here b is a non-decreasing function on ℝ, and (an(x,ξ))n is a f(...)
p(x)-Laplacian; Leray-Lions operator; variable exponent; thermorheological fluids; well-posedness; continuous dependence; convergence of minimizers; Young measures
ARTICLE
Composition and Antimicrobial Activities of Lippia multiflora Moldenke, Mentha x piperita L. and Ocimum basilicum L. Essential Oils and Their Major Monoterpene Alcohols Alone and in Combination
126. BASSOLÉ IHN, Lamien-Meda A, Bayala B, Tirogo S, Chlodwig Franz, Johannes Novak, Roger Charles Nebié and Mamoudou H. DICKO (
Essential oils from leaves of Lippia multiflora, Mentha x piperita and Ocimum basilicum from Burkina Faso were analysed by GC–FID and GC–MS. Major components were p-cymene, thymol, β-caryophyllene, carvacrol and carvone for L. multiflora, menthol and iso-menthone for M. x piperita and, linalool and eugenol for O. basilicum. The essential oils(...)
essential oils, ,chemical composition, ,ntibacterial activity
ARTICLE
Correlative and comparative characterization of main ion concentrations in laterite groundwater in semi-arid northern Burkina Faso
Julien Nikiema, Mario Schirmer, Walter Gläßer, Ronald Krieg
About 24 samples from hand-dug wells and boreholes were used to characterize concentrations of the main inorganic ions in a laterite environment under semi-arid climatic conditions in Tikaré, northern Burkina Faso. It was found that the most represented groundwater anion in groundwater was HCO3− with average levels of 49.1 mg/L in the dry seas(...)
laterite groundwater, Main ion concentration, Anthropogenic contamination, Correlation, Burkina Faso, Tikaré