Publications (8107)
ARTICLE
Growing sandpile problem with Dirichlet and Fourier boundary conditions
E. Nassouri, S. Ouaro, U. Traoré
In this work, we study the Prigozhin model for growing sandpile with mixed boundary conditions and an arbitrary time dependent angle of repose. On one part of the boundary the homogeneous Dirichlet boundary condition is provided, on the other one the Robin condition is used. Using the implicit Euler discretization in time, we prove the existen(...)
growing sandpile; Fourier boundary condition; nonlinear semi-group; Dirichlet boundary condition; Euler discretization in time
ARTICLE
Options in human papillomavirus (HPV) detection for cervical cancer screening: comparison between full genotyping and a rapid qualitative HPV-DNA assay in Ghana
Dorcas Obiri-Yeboah, Yaw Adu-Sarkodie, Florencia Djigma, Kafui Akakpo, Ebenezer Aniakwa-Bonsu, Daniel Amoako-Sakyi, Jacques Simpore, Philippe Mayaud
Background
Modern cervical cancer screening increasingly relies on the use of molecular techniques detecting high-risk oncogenic human papillomavirus (hr-HPV). A major challenge for developing countries like Ghana has been the unavailability and costs of HPV DNA-based testing. This study compares the performance of careHPV, a semi-rapid and a(...)
Human papillomavirus (HPV) careHPV Genotyping Cervical cancer Screening HIV Ghana
ARTICLE
Evidence that agricultural use of pesticides selects pyrethroid resistance within Anopheles gambiae sl populations from cotton growing areas in Burkina Faso, West...
Many studies have shown the role of agriculture in the selection and spread of resistance of Anopheles gambiae sl to insecticides. However, no study has directly demonstrated the presence of insecticides in breeding sources as a source of selection for this resistance. It is in this context that we investigated the presence of pesticide residu(...)
Mots clés non renseignés
ARTICLE
Incidence of invasive salmonella disease in sub-Saharan Africa: a multicentre population-based surveillance study
B. SOURA
Background Available incidence data for invasive salmonella disease in sub-Saharan Africa are scarce. Standardised, multicountry data are required to better understand the nature and burden of disease in Africa. We aimed to measure the adjusted incidence estimates of typhoid fever and invasive non-typhoidal salmonella (iNTS) disease in sub-Sah(...)
Mots clés non renseignés
ARTICLE
Calcul de la composition chimique dans un plasma issu de mélanges de PTFE, d’air, de cuivre et de vapeur d’eau dans le cadre d’appareillages de coupure électrique à air
Pascal André (1), Marie-Agnès Courty(2), Abdoul K. Kagoné(3), Zacharie Koalaga(3), Niessan Kohio(3), François Zougmoré (3)
Le climat des zones sub-sahariennes est marqué par une forte variabilité du taux d’humidité dans l’air, surtout entre la saison sèche et la période de mousson, et par un
empoussièrement atmosphérique élevé lors des tempêtes de poussières et de vents de sable. Sous ces conditions, les appareillages de coupure de type disjoncteur à air en conta(...)
composition chimique, multiphases, enthalpie libre, plasmas thermiques, arc électrique, disjoncteur à air, polytétrafluoroéthylène
ARTICLE
First report of Pepper yellow vein Mali virus associated with pepper yellow vein disease in Cote d’Ivoire
K. Séka, A. Ouattara, K.P. Assiri, K.D. Kra, M. Hoareau, P. Lefeuvre, H. Atta Diallo, J.M. Lett
In Mali and Burkina Faso, pepper yellow vein disease (PYVD) is associated with the Africa monopartite begomovirus Pepper yellow vein Mali virus (PepYVMLV). In January 2012 and August 2013, severe yellowing, leaf curling and deformation symptoms, resembling those of PYVD were observed on pepper (Capsicum spp.) across Côte d'Ivoire. Twenty leaf(...)
Mots clés non renseignés
ARTICLE
New strains of chickpea chlorotic dwarf virus discovered on diseased papaya and tomato plants in Burkina Faso
Alassane Ouattara, Fidèle Tiendrébéogo, Pierre Lefeuvre, Murielle Hoareau, Sohini Claverie, Edgar Valentin Traoré, Nicolas Barro, Oumar Traoré, Arvind Varsani, Jean-Michel Lett
This is the first description of full genome sequences of chickpea chlorotic dwarf virus (CpCDV; genus Mastrevirus; family Geminiviridae) identified in papaya and tomato plants sampled in Burkina Faso. The CpCDV full genome sequences from papaya and tomato share the highest pairwise sequence identity (84% and 93.5%) with Sudanese isolates of t(...)
Mots clés non renseignés
ARTICLE
Study of the organoleptic quality of three varieties of dried mangos : Amélie, Lippens and Brooks during storage by enzymatic tanning techniqueof peroxidases (POD) and the polyphenoloxydases (PPO)
Aminata Belem , François Tapsoba , Laurencia Toulsoumdé Songre-Ouattara , Cheikna Zongo , Aly Savadogo *
Thirty dried mango samples of Amélie, Brooks and Lippens varieties were collected for physico-chemical analyses to understanding the conditions of appearance of the enzymatic browning. These analyses showed that the higher contents of dry matter, assayable acidity, vitamin C and phenolic substrates were respectively 95,86 ± 0.01 mg/g; 1.56 ± 3(...)
Dried mango- Enzymatic tanning-Peroxidase -Polyphenoloxydase
ARTICLE
Water flow in soil at small water contents: a simple approach to estimate the relative hydraulic conductivity in sandy soil
M. B. Kebré, F. Cherblanc, F. Ouédraogo, F. Jamin, B. Naon, F. Zougmoré & J.-C. Bénet
Unsaturated soil hydraulic properties are key properties in the fields of soil science and civil engineering. Because of their strong dependence on water content, there are considerable experimental and numerical difficulties in their determination, specifically in the dry range. This situation is encountered regularly in arid and semi-arid re(...)
Mots clés non renseignés
ARTICLE
Mouvement interreligieux et usages d’Internet au Burkina Faso. Le cas de l’Union fraternelle des croyants (UFC) de Dori
Kaboré Koudbi
L’arrivée d’Internet provoque des évolutions dans le rapport aux médias des communautés religieuses. Il y a une volonté de visibilité externe grâce à l’usage d’Internet comme moyen de communication et comme mode de présence. À partir de l’exemple de l’Union fraternelle des croyants de Dori au Burkina Faso, cette contribution analyse l’appropri(...)
islam, christianisme, Burkina Faso, Internet, dialogue interreligieux
ARTICLE
Classical solutions for discrete potential boundary value problems with generalized Leray-Lions type operator and variable exponent
B.A. Kyelem, S. Ouaro, M. Zoungrana
In this article, we prove the existence of solutions for some discrete nonlinear difference equations subjected to a potential boundary type condition. We use a variational technique that relies on Szulkin’s critical point theory, which ensures the existence of solutions by ground state and mountain pass methods
potential boundary type condition; variational method; critical point; ground state method; Palais-Smale condition; mountain pass theorem
ARTICLE
Risk Behavior among Ineligible Blood Donors in a Blood Transfusion Center (Burkina Faso)
Eléonore Kafando1*, Yacouba Nébié2, Salam Sawadogo2, Kisito Kienou2, Honorine Dahourou3 and Jacques Simporé4
ObjectiveThe aim of the study was to compare the prevalence of human immunodeficiency virus, hepatitis B and C viruses among two blood donor populations.
MethodsA cross-sectional descriptive study was conducted over a six-month period. It involved blood donors recruited at fixed and mobile collection sites. Donors were classified into two g(...)
Blood transfusion; Fixed and mobile sites; Ineligible donor; Serological markers
ARTICLE
Visual appearance durability as function of natural and acceleratedageing of electrophoretic styrene-acrylic coatings: Influence of yellowpigment concentration
Tambi Ramdé, Luiz Gustavo Ecco, Stefano Rossi
Organic coatings are extensively used in many fields of engineering such as automotive or architectural industries for protection of the metallic structure against corrosion and to deliver visual aspects to the coated item. High quality paints either for outdoor or indoor applications require longer stability of their visual appearance alongsi(...)
Styrene-acrylic coating, Yellow pigment, Color evolution, UV-B test, Natural ageing
ARTICLE
Groundwater arsenic contamination in Burkina Faso, West Africa: Predicting and verifying regions at risk
Anja Bretzler, Franck Lalanne, Julien Nikiema, Joel Podgorski, Numa Pfenninger, Michael Berg, Mario Schirmer
Arsenic contamination in groundwater from crystalline basement rocks in West Africa has only been documented in isolated areas and presents a serious health threat in a region already facing multiple challenges related to water quality and scarcity. We present a comprehensive dataset of arsenic concen trations from drinking water wells in rura(...)
Arsenic contamination, Drinking water, West Africa, Sulphide minerals, Hazard modelling, Health threat
ARTICLE
Dental emergencies in Burkina Faso Armed Forces
Raoul Bationo, Wendpouiré Patrice Laurent Guiguimdé, Hamidou Ouédraogo, Blintim Somé
Background. Dental emergencies affect the mission of deployed units. During military operations, the definition of dental emergency is different from that which is commonly accepted in dentistry. There is no notion of seriousness or need for urgent care. A considerable number of studies concerning American, French and other armies exist in the(...)
dental emergencies, operational capability, deployed soldiers, burkina faso army