Publications (8047)
ARTICLE
In vitro antifungal activity of flavonoid diglycosides of Menthapiperita and their oximes derivatives against two cereals fungi
Ousmane Ilboudo, Schémaeza Bonzi, Issa Tapsoba, Irénée Somda, Yvonne L. Bonzi-Coulibaly
Flavonoids due to their various interesting biological properties such as antifungal activity were investigated in Mentha piperita leaves. The butanolic fraction obtained from the hydro-alcoholic crude extract of M. piperita is rich in flavonoids; it reduced in vitro the mycelium growth of Phoma sorghina and Fusarium moniliforme around 72% and(...)
Mots clés non renseignés
ARTICLE
Entropy solutions for nonlinear elliptic anisotropic problem with Robin boundary condition
S. Ouaro, B.K. Bonzi, FDY. Zongo
Let Ω be an open bounded domain of ℝN (N≥3) with a smooth boundary. This paper is mainly concerned with the existence and uniqueness of an entropy solution to the following nonlinear anisotropic elliptic problem:
−∑i=1N∂∂xiai(x,∂∂xiu)+|u|pM(x)−2u=finΩ
with boundary condition
∑i=1Nai(x,∂∂xiu)νi=−|u|r(x)−2uon∂Ω,
where f∈L1(Ω) and νi(x) are t(...)
anisotropic equations; variable exponent; weak solutions; entropy solutions; Robin type boundary condition
ARTICLE
Soil crusting impact on soil organic carbon losses by water erosion
S. Maïga-Yaleu, I. Guiguemde, H. Yacouba, H. Karambiri, O. Ribolzi, A. Bary, R. Ouedraogo, V. Chaplot
The Sahelian region, characterized by erratic, heavy rainfalls and low soil organic carbon (SOC) stocks, is highly vulnerable to land degradation. While water erosion is recognized as being a main mechanism of SOC losses, little research has yet been done to investigate the role which soil surface crusting might have on SOC losses. The main ob(...)
Erosion, Soil organic carbon, Soil surface crust, Enrichment ratio
ARTICLE
Personality and personality disorders in urban and rural Africa: results from a field trial in Burkina Faso
Rossier J, Ouedraogo A., Dahourou D, Verardi S and de Stadelhofen FM
Résumé indisponible
Mots clés non renseignés
ARTICLE
On the construction of the series solution of the Adomian decomposition method
Bissanga Gabriel, Bassono Francis, Pare Youssouf, Blaise Some
In this paper, the Adomian decomposition method is used to construct the solution of integral equations and the choice
of the first term of the series solution in the algorithm of Adomian is different of the usual one
Adomian decomposition method, integral equations
ARTICLE
Network structure of social coding in GitHub
T. BISSYANDE
Social coding enables a different experience of software development as the activities and interests of one developer are easily advertised to other developers. Developers can thus track the activities relevant to various projects in one umbrella site. Such a major change in collaborative software development makes an investigation of networki(...)
Mots clés non renseignés
ARTICLE
Empirical evaluation of bug linking
T. BISSYANDE
To collect software bugs found by users, development teams often set up bug trackers using systems such as Bugzilla. Developers would then fix some of the bugs and commit corresponding code changes into version control systems such as svn or git. Unfortunately, the links between bug reports and code changes are missing for many software projec(...)
Mots clés non renseignés
ARTICLE
« Les héros et la mort dans les épopées de Soundjata et de Gilgamesh »
Alain Joseph Sissao
L’épopée de Soundjata constitue un récit phare sur la constitution du Mandé. Après la mort
du buffle totem de la mère du héros, qui permet de réaliser l’oracle de la naissance de
Soundjata, nous assistons à d’autres décès de proches dans la trajectoire de la maturité du
héros. Ainsi on peut noter la mort du frère qui le chassa du trône et q(...)
Soundjata, Gilgamesh, violence, épopée, courage, héros
ARTICLE
Actions of the Burkina Faso Women in Physics Working Group at the University of Ouagadougou
Pétronille Kafando and Issa Zerbo
At the University of Ouagadougou, the largest university in Burkina Faso, the percentage of female student
enrollment in the Exact and Applied Sciences Unit was 5.1% (for all the levels) from 2006 to 2009—this rate was
2.3% for physics. For the same period, 22 women out of 455 students (4.8%) were enrolled in PhD (all the fields of
the Exac(...)
gender enrollment, physics, University of Ouagadougou, women in physics, Burkina Faso
ARTICLE
Periodicity in the α-norm for some partial functional differential equations with infinite delay.
K. Ezzinbi, B.A. Kyelem, S. Ouaro
Using some fixed point theorems, the authors investigate the existence of periodic solutions in the α-norm for the partial functional differential equation with infinite delay
dudt(t)=−Au(t)+f(t,ut),t∈ℝ.
Here f:ℝ×α→X is a continuous function, σ-periodic in its first argument, X is a Banach space, α is the phase space, A:D(A)⊆X→X is a close(...)
analytic semigroup; partial functional differential equations; α-norm; multivalued maps; condensing maps; periodic solutions; fractional power of operators
ARTICLE
Modeling the emission of hydrogen chloride and free chlorine from the thermal treatment of polyvinyl chloride- (PVC-) based plastic materials
J.P.B. Karama,∗, A. Béré, J. Lemonon, T. Daho, A. Dissa, Y. Rogaume, J. Koulidiati
To simulate the emission of hydrogen chloride gas and free chlorine from the thermal treatment of plastic materials, especially those based on PVC, two mathematical models have been developed. An experimental research program has been undertaken to validate these models. It is found that the masses of hydrogen chloride and free chlorine comput(...)
Polyvinyl chloride, Free chlorine (Cl2), Hydrogen chloride (HCl), Modeling, Simulation, Pyrolysis
ARTICLE
Haemoglobin S and C affect the motion of Maurer's clefts in Plasmodium falciparum-infected erythrocytes
Nicole Kilian, Martin Dittmer, Marek Cyrklaff, Djeneba Ouermi, Cyrille Bisseye, Jacques Simporé, Friedrich Frischknecht, Cecilia P. Sanchez, Michael Lanzer
The haemoglobinopathies S and C protect carriers from severe Plasmodium falciparum malaria. We have recently shown that haemoglobin S and C interfere with host-actin remodelling in parasitized erythrocytes and the generation of an actin network that seems to be required for vesicular protein trafficking from the Maurer's clefts (a parasite-der(...)
Plasmodium falciparum ; hémoglobine S ; hémoglobine C ; Maurer's clefts ; réseau d’actine ; paludisme ; cytosquelette ; hémoglobinopathies
ARTICLE
Entropy solutions for nonlinear elliptic anisotropic homogeneous Neumann problem
B.K. Bonzi, S. Ouaro, F.D.Y. Zongo
We prove the existence and uniqueness of an entropy solution for nonlinear anisotropic elliptic equations with Neumann homogeneous boundary value condition for L1-data. We prove first, by using minimization techniques, the existence and uniqueness of a weak solution when the data is bounded, and by approximation methods, we prove a result of e(...)
existence; uniqueness; entropy solution; nonlinear anisotropic elliptic equations; Neumann homogeneous boundary value
ARTICLE
Caractérisation du fonctionnement des aquifères dans la région de Ouagadougou à partir d'une étude de la qualité chimique des eaux
Suzanne Ouandaogo-Yaméogo, Bernard Blavoux, Julien Nikiema, Alain Nindaoua Savadogo
Une partie de l’alimentation en eau potable de Ouagadougou provient d’environ 1 800 puits traditionnels et 100 forages plus profonds de 40 à 65 m en moyenne. Une étude hydrochimique a été menée pour mieux connaître la qualité de la ressource en eau captée. Ses résultats permettent de proposer un modèle conceptuel du fonctionnement des aquifè(...)
Pollution urbaine, hydrochimie, aquifères, socle cristallin, Ouagadougou, Burkina Faso
ARTICLE
Inhibition of Bacillus cereus growth by bacteriocin producing Bacillus subtilis isolated from fermented baobab seeds (maari) is substrate dependent
112. Donatien, KABORÉ Dennis Sandris Nielsen, Hagrétou Sawadogo-Lingani, Bréhima Diawara, Mamoudou H. DICKO, Mogens Jakobsen, Line Thorsen
Maari is a spontaneously alkaline fermented food condiment made from baobab tree seeds. Due to the spontaneous nature of maari fermentations growth of the opportunistic human pathogen Bacillus cereus is occasionally observed. Bacillus subtilis strains are important for alkaline seed fermentations because of their enzymatic activities contribut(...)
Bacillus subtilis, Bacillus cereus, Maari, Bacteriocin, Baobab seeds, African locust bean, Fermentation