ProGRES

ARTICLE

On a Bi-nonlocal fourth-order difference problem involving the p(k)-Laplacian type operator

I. Nyanquini and S. Ouaro

In this paper, we study a class of bi-nonlocal fourth-order discrete problems involving p(k)-Laplacian operator in a finite dimensional Banach space. By using the variational method and the (S+) mapping theory, we investigate the existence and multi- plicity of nontrivial solutions, subject to the condition that the parameters are sufficiently(...)

Bi-nonlocal problem, Kirchhoff type equation, Mixed boundary conditions, Mountain pass Theorem

ARTICLE

Evaluation of corrosion protection performance and color stability of environment-friendly pigmented polyurethane coating

Mamadou Ouedraogo, Tambi Ramde, Boubié Guel, Stefano Rossi

This research is distinctive in its focus on the corrosion protection property, the ultraviolet B radiations (UV-B) resistance, and the color stability of a polyurethane (PU) base coating formulated with 1 % wt. of an environment-friendly inorganic pigment (Bi, Ca, Zn)VO4. The pigment was synthesized and evaluated based on structure, color, an(...)

Pigment Organic coating Corrosion protection Color stability UV-ageing Electrochemical impedance

ARTICLE

Short Term Impact of Andropogon gayanus Kunth. on Soil Fertility and Legume Crop Rotation in West Central Region of Koudougou, Burkina Faso

Boussa Tockville Josue Mare, Yiénibirma Josias Lankoande, Issaka Senou, Salifou Traore a and Waldemar Spychalski

The low productivity of land in Burkina Faso is one of the major threats of the agricultural sector. This study aims to evaluate the short-term legume crop impact in a sequence with a short term Andropogon gayanus fallow rotation in order to propose means of degraded lands recovery and their sustainable management. To achieve this goal, a test(...)

Land management; short fallow; physicochemical characteristics; Burkina Faso.

ARTICLE

Lands Evaluation in Hydromorphic Environment: Case of Developed Rice Lowland Soils in the Province of Ziro, Burkina Faso

Boussa Tockville Josue MARE, Duponibè SOME, Fidèle KABORE , Jean OUEDRAOGO and Edmond HIEN

Sustainable soil management became a major concern for rice farming in Burkina Faso. Rained rice production offers potential thanks to the national rice policy oriented towards the developing of lowlands. However, effective soil fertility management through the promotion of good agricultural practices is essential in this agricultural area to(...)

Rice lowlands; soil quality; land assessment; Burkina Faso

ARTICLE

Fire behavior of polymers: comparative study of Tek wood and Fraké wood on a small scale

BAGUIAN Abdoul Faycal1, KOUDOUGOU Mathilde, KOALA Lucmane, DABILGOU Téré, TIENDREBEOGO Olivier, TASSEMBEDO Rodolphe, ZAIDA Justin, SAM Raguilignaba , OUIMINGA Salifou Koucka

Parameters representing the thermal properties of materials are considered to be specific to thermal inertia, and parameters modulating surface heat transfer are considered to be related to thermal inertia. The fire behavior of materials depends on the chemical processes involved in their thermal degradation. For our study of the therm(...)

calorimeter, Fraké and Tek, combustion, materials

ARTICLE

The unit bundle of a real hyperbolic space

Alfred Touré, Daniel Koama, Mikaïlou Compaoré, Marie Françoise Ouedraogo

The purpose of this article is to study the two homogeneous structures of the unit bundle UH^n of a real hyperbolic space. In both the cases, we determine the -invariant Riemannian metrics. In passing, we examine whether the geodesic flow is an isometry of UH^n when equipped with its Levi-Civita metric. Finally, we study the manifold of geodes(...)

hyperbolic space, isotropy representations, unit bundle

ARTICLE

Fire behavior of polymers: comparative study of Tek wood and Fraké wood on a small scale

BAGUIAN Abdoul Faycal, KOUDOUGOU Mathilde, KOALA Lucmane , DABILGOU Téré , TIENDREBEOGO Olivier, TASSEMBEDO Rodolphe, ZAIDA Justin, SAM Raguilignaba, OUIMINGA Salifou Koucka5

Parameters representing the thermal properties of materials are considered to be specific to thermal inertia, and parameters modulating surface heat transfer are considered to be related to thermal inertia. The fire behavior of materials depends on the chemical processes involved in their thermal degradation. For our study of the thermal degra(...)

calorimeter, Fraké and Tek, combustion, materials

ARTICLE

Gestion des déchets plastiques à Koudougou, une ville moyenne du Burkina Faso

Nebilma P. NAGALO, Fulgence T. IDANI, Sidiki ZONGO

Autrefois, considéré comme une source de revenu, les déchets plastiques sont perçus aujourd’hui comme un danger par les écologistes au niveau mondial. A l’instar des grandes villes africaines, la ville de Koudougou fait face à des défis majeurs en matière de préservation de l’environnement. L’objectif de cette étude est d’analyser le(...)

déchets plastiques-gestion-ville moyenne-Koudougou-Burkina Faso.

ARTICLE

DÉVELOPPEMENT COGNITIF POSTTRAUMATIQUE D’UN ENFANT BURKINABÈ VICTIME D’ATTAQUES TERRORISTES

Mahamady Lèga SAWADOGO, Sébastien YOUGBARE, Leopold Bawala BADOLO

Cette étude a analysé les retentissements du psychotraumatisme sur le développement cognitif d’un enfant victime d’attaques terroristes. Les données ont été recueillies à travers deux techniques : l’observation clinique et l’entretien clinique. Les outils utilisés sont le Child Post-Traumatic Stress Reaction Index (CPTS-RI), le Child Behavior(...)

Psychotraumatisme, développement cognitif, terrorisme, enfants, Burkina Faso.

ARTICLE

LE SUD-OUEST DU BURKINA FASO A L’EPREUVE DU CHANGEMENT CLIMATIQUE : ENTRE PERCEPTIONS ET STRATEGIES D’ACTEURS

Jean Charles BAMBARA et Ramané KABORÉ

notamment lors de la conférence de Rio de Janeiro et dans les rapports réguliers du GIEC, les pays ont intensifié leurs efforts pour prévenir les catastrophes prédites par les spécialistes. Le Burkina Faso, dont l'économie dépend en grande partie sur le secteur primaire, a également mis en place diverses initiatives d’adaptation pour ren(...)

logiques paysannes, changement climatique, stratégie d’adaptation.

ARTICLE

GOUVERNANCE, CITOYENNETÉ ET IDÉE DE NATION EN TEMPS D’INSÉCURITÉ EN AFRIQUE,

BAMBARA Romuald Evariste

Comment partir des réalités spirituelle, sociale, économique et politique africaines pour construire une articulation efficace entre la gouvernance et la citoyenneté afin de faire face aux temps de terreur mortifère généralisée en Afrique ? La période actuelle, marquée par une insécurité multiforme généralisée avec une visibilité plus accrue s(...)

Citoyenneté, endogène, gouvernance, insécurité, nation.

ARTICLE

Enhancing Box Type Solar Cookers by Using Jatropha Oil as Sensible Heat Storage Medium

Nébié Jacques, Kayaba Haro, Drissa Ouédraogo, Koumbem W. N. Daniel, Boukaré Ouédraogo, Boubou Bagré, Iliyassé Konkobo, Armand Korsaga, Sidiki Zongo, Tizane Daho, and Antoine Béré

his research paper is based on an assessment of the performance of a box-type solar cooker insulated with kapok wool and incorporating a thermal heat storage unit. The heat storage material used in this work is Jatropha Curcas seed oil which is available locally as well as kapok wool. The realized can offer an economically viable alternative w(...)

Solar cooker, solar energy, jatropha curcas seeds, heat storage, performance

ARTICLE

Caractérisation des risques hydroclimatiques dans la basse vallée de l’Ouémé au Benin

Frederic Kannayi Lodouhoue, Gaston Sèssinou Lagoye, Françoise Valea, Laurenda Carmen Gnele et Expédit Willfrid

La présente recherche vise à caractériser les risques hydroclimatiques dans la basse vallée de l’Ouémé. L’approche méthodologique a consisté en la détermination des aléas liés à la variabilité hydro-climatique à travers les données climatologiques (pluie, ETP) et hydrométrique (débits) de 1960 à 2011, l’étude des indices de précipitations stan(...)

Basse vallée de l’Ouémé, Risques hydroclimatiques, perceptions, savoirs endogènes, stratégies d’adaptation

ARTICLE

Climate Variability and Farmers’ Perceptions in the Rural Commune of Ouahigouya, Burkina Faso

Françoise Valea

In Burkina Faso, climatic conditions determine the agricultural practices of the populations engaged in this sector of activity to ensure viable socio- economic development. In Ouahigouya, farmers are trying to adapt to the vagaries of the climate, which are reflected in wide variations in rainfall, temperature, humidity and wind paramet(...)

Burkina Faso, Ouahigouya, climate variability, farmers' perceptions.

ARTICLE

FOREST MANAGEMENT AND LAND USE DYNAMICS IN THE WAKOU COMMUNAL FOREST AND DIAPANGOU SYLVOPASTORAL ZONE (BURKINA FASO)

Francoise Valea

In Burkina Faso, the degradation of forest resources has led to the implementation of strategies to preserve and restore plant formations. To this end, the Wakou communal forest (FC) and the Diapangousylvopastoral zone (ZSP), in the east of the country, have benefited from forest management. This study analyzes the impact of these ma(...)

Forest Management, Land Use Change, Communal Forest, Sylvopastoral Zone, Burkina Faso

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