Publications (8102)
ARTICLE
Woody vegetation structure and composition at four sites along a latitudinal gradient in western Burkina Faso.
Fidèle Bognounou, Adjima Thiombiano, Patrice Savadogo, Joseph Issaka Boussim, Per Christer Odén, Sita Guinko
Understanding the distribution patterns of plant species and the underlying factors is crucial to the conservation and management of plant communities in savannah-woodland
ecosystems. This article describes the species composition, structure and diversity of woody species at four sites along a latitudinal gradient in the North Sahelian, South(...)
Biodiversity, Species richness, Environmental relation, Fragmented landscape, Conservation, Sudanian zone.
ARTICLE
Les phénomènes de nitration des eaux souterraines dans la région de Tilabéry (Niger)
Marou Gourouza , Garba Zibo , Karifa Bayo
Résumé : Des échantillons d’eaux de consommation provenant de trois cent points d’eau
souterraine repartis sur toute la région de Tillabéry (Niger) ont été analysés. Les résultats
révèlent qu’environ 2/3 de ces points d’eaux connaissent un début de pollution au nitrate ;
10% sont impropres à la consommation humaine avec des teneurs supérieu(...)
Mots clés : eau, pollution, nitrate, potassium
ARTICLE
Living at the edge: biogeographic patterns of habitat segregation conform to speciation by niche expansion in Anopheles gambiae
Carlo Costantini , Diego Ayala , Wamdaogo M Guelbeogo , Marco Pombi , Corentin Y Some , Imael HN Bassole , Kenji Ose , Jean- Marie Fotsing , N'Falé Sagnon , Didier Fontenille , Nora J Besansky and Frédéric Simard
Background: Ongoing lineage splitting within the African malaria mosquito Anopheles gambiae is
compatible with ecological speciation, the evolution of reproductive isolation by divergent natural selection acting on two populations exploiting alternative resources. Divergence between two molecular forms (M and S) identified by fixed(...)
Mots clés non renseignés
ARTICLE
INFANT FEEDING MODALITIES AND MORBIDITY IN HIV INFECTED WOMEN IN RESOURCE-POOR COUNTRIES. A MULTICENTER STUDY IN SUBSAHARAN AFRICA
L. R. Tomasoni, M. Galli, V. Vullo, B. Pedruzzi, V. Pietra, J. Simporé, E. Gianelli, S. Rusconi, A. Riva, Giovanni Guaraldi, K. Luzi, G. Russo, M. Lichtner, G. Carosi, F. Castelli
The optimal feeding modality of infants born to HIV infected mothers in resource-limited settings is still the subject for debate. WHO guidelines recommends exclusive formula feeding wherever it is available, feasible, affordable, safe and sustainable (AFASS). In all other instances, exclusive breastfeeding and early weaning is recommended. Ho(...)
infant feeding, HIV-infected women, resource-poor countries, morbidity, Sub-Saharan Africa, breastfeeding, formula feeding
ARTICLE
Weak and entropy solutions to nonlinear elliptic problems with variable exponent.
S. Ouaro, S. Traoré
The authors study nonlinear boundary value problem with the nonlinear operator of p-Laplacian-type and Dirichlet boundary condition. The authors obtain two existence results: in first a unique entropy solution is obtain and in the second a week solution is produced.
generalized Lebesgue-Sobolev spaces; weak energy solution; entropy solution; p(x)-Laplace operator; electrorheological fluids
ARTICLE
HIV NOTIFICATION TO THE PARTNER AMONG PUERPERAS IN SUB-SAHARAN AFRICA
L. R. Tomasoni, M. Galli, V. Vullo, S. Declich, M. Giuliano, V. Pietra, M. Fabiani, J. Simpore, E. Gianelli, S. Rusconi, A. Riva, G. Guaraldi, K. Luzi, G. Russo, M. Lichtner, F. Castelli
HIV serostatus disclosure to sexual partner may lead to clear public health benefits (motivation for partner testing, behavior changes, earlier access to medical care), but it may also lead to women rejection, loss of economic support, physical and emotional abuse. Studies from developing countries suggest that a larger proportion of women com(...)
HIV disclosure, partner notification, puerperas, Sub‑Saharan Africa, public health, stigma, gender dynamics
ARTICLE
Genetic and environmental factors in human osteoporosis from Sub-Saharan to Mediterranean areas
Maria Musumeci, Gianluca Vadalà, Giovanni Tringali, Elio Insirello, Anna Maria Roccazzello, Jacques Simporé, Salvatore Musumeci
The aim of this study was to determine the prevalence of known gene polymorphisms associated with osteoporosis in postmenopausal normal women from Burkina Faso and Sicily, compared to postmenopausal Sicilian women with osteoporosis, and to establish the weight of environmental factors in the mechanism of osteoporosis. Bone mass density (BMD) w(...)
Osteoporosis, Gene polymorphisms, Vitamin D receptor (VDR), Estrogen receptor (ESR), Physical activity, Bone mass density (BMD), Sub-Saharan women, Environmental factors
ARTICLE
Antibiotic resistance in urinary tract bacteria in Ouagadougou
Simplice D. Karou, Idenise P. Ilboudo, Wendyamé M. C. Nadembega, Yaovi Ameyapoh, Djeneba Ouermi, Salvatore Pignatelli, Virginio Pietra, Alfred S. Traoré, Comlan de Souza, Jacques Simporé Demander à ChatGPT
The present study aimed to ascertain for the current situation of antimicrobial resistance of major urinary tract bacteria in Saint Camille Medical Centre. During two consecutive years, 794 urine specimens were analyzed for microorganism isolation and identification. The microorganisms were identified by conventional methods used in the centre(...)
Urinary tract, Antibiotic resistance, Escherichia coli, Staphylococcus aureus, Klebsiella pneumoniae
ARTICLE
Outcome and predictive factors of mortality in hospitalized HIV-patients in Burkina Faso
N. Saleri, S. Capone, V. Pietra, G. De Iaco, V. Del Punta, M. Rizzi, M. Levi, S. Rouamba, E. Somé, J. Simporé, A. Patroni, G. Carosi, F. Castelli
Background: The aim of this study was to describe the clinical presentation and predictors of death in a HIV population hospitalized in Ouagadougou, Burkina Faso.
Materials and methods: Baseline demographics, viro-immunological status, clinical presentations, and outcome have been analyzed by univariate analysis and a multivariate model.(...)
HIV, mortality, predictive factors, hospitalized patients, Burkina Faso
ARTICLE
Toward a Better Representation of Women in Physics in Burkina Faso
P. Kafando, M.N.Sido-Pabyam, and I. Zerbo
Although 52% of Burkina Faso's population is women, boys receive preference in schooling. In 2006, only about 10% of the secondary school pupils were girls. At the University of Ouagadougou in 2000-2005 one quarter of the students were women, but just 5% of students in the sciences were women. This rate is dramatically lower in physics, both f(...)
women in science, Burkina Faso, education of girls in Burkina Faso
ARTICLE
Uniqueness of entropy solutions of nonlinear elliptic-parabolic-hyperbolic problems in one dimension space.
S. Ouaro
We consider a class of elliptic-parabolic-hyperbolic degenerate equations of the form b(u)t−a(u,φ(u)x)x=f with homogeneous Dirichlet conditions and initial conditions. In this paper we prove an L1-contraction principle and the uniqueness of entropy solutions under rather general assumptions on the data.
entropy solution; L1-contraction principle; homogeneous Dirichlet conditions; initial conditions
ARTICLE
Modelling and experimental validation of thin layer indirect solar drying of mango slices
D. BATHIEBO
The thin layer solar drying of mango slices of 8 mm thick was simulated and experimented using a solar dryer designed and constructed in laboratory. Under meteorological conditions of harvest period of mangoes, the results showed that 3 “typical days” of drying were necessary to reach the range of preservation water contents. During these 3 da(...)
Mots clés non renseignés
ARTICLE
Effet du régime hydrique sur les rendements du gombo en culture de contre-saison
Rasmata NANA, Gérard ZOMBRE, Zoumbiessé TAMINI et Mahamadou SAWADOGO
L’étude à pour but de mettre en évidence la période de contre-saison favorable à la culture du gombo (Abelmoschus esculentus) et de déterminer la bonne fréquence d’arrosage. Pour cela, deux essais ont été réalisés sur trois écotypes 1 ; 19 et 22: le premier pendant la période froide (décembre-mars 2005) et le second durant la période chaude (a(...)
contre-saison, fréquence d’arrosage, gombo; rendement
ARTICLE
Existence and regularity of solutions for some partial functional integrodifferential equations in Banach spaces
Khalil Ezzinbi, Hamidou Toure, Issa Zabsonre
In this work, we study the existence and regularity of solutions for some partial functional integrodifferential equations in Banach spaces. We suppose that the undelayed part admits a resolvent operator in the sense given by Grimmer in [R. Grimmer, Resolvent operators for integral equations in a Banach space, Transaction of American Mathemati(...)
Mots clés non renseignés
ARTICLE
Discovering Africa's Newest Palm.
A. OUEDRAOGO
In 1996, a paper was published discussing the identity of a palm in the genus Borassus, occurring only in West Africa. It was identified as B. flabellifer, the Asian palmyrah palm, previously unknown in Africa. This paper recounts the story of an expedition to find and document these palms, resulting in the description of Borassus akeassii, Af(...)
Mots clés non renseignés