Publications (5607)
ARTICLE
An organometallic derivative of a BAPTA ligand: towards electrochemically controlled cation release in biocompatible media
29. Koyel X. Bhattacharyya, Leıla Boubekeur-Lecaque, Issa Tapsoba, Emmanuel Maisonhaute, Bernd Schollhorn and, Christian Amatore
Calcium behaves as a chemical messenger in a wide variety of cells, and local variations in its
concentration play a key role in many biological processes. 1,2 The understanding of how calcium
affects cellular functions necessitates the precise modulation of calcium concentration with high
spatial and temporal resolution. Tremendou(...)
Mots clés non renseignés
ARTICLE
Three-dimensional study of a polycrystalline silicon solar cell: the influence of the applied magnetic field on the electrical parameters
A Dieng, I Zerbo, M Wade, A S Maiga and G Sissoko
In this paper, we present a theoretical 3D study of a polycrystalline silicon solar cell in frequency modulation under polychromatic illumination and applied magnetic field. The influence of the applied magnetic field on the diode current density, Jd , and both electric power–photovoltage and photocurrent–photovoltage characteristics are discu(...)
Mots clés non renseignés
ARTICLE
Sickle-cell disease and malaria: evaluation of seasonal intermittent preventive treatment with sulfadoxine-pyrimethamine in Senegalese patients—a randomized placebo-controlled trial.
Saliou Diop, Fabienne Soudré, Moussa Seck, Youssou Bamar Guèye, Tandakha Ndiaye Diéye, Awa Oumar Touré Fall, Abibatou Sall, Doudou Thiam & Lamine Diakhaté.
Abstract Sickle-cell disease (SCD) patients are at high risk of developing malaria which is a major contributor to morbidity andmortality in this disease. In Senegal, malaria transmission is high during rainy season, between July and October, and it was noted that sickle-cell crisis are frequent during this period. Then we carried out a double(...)
Sickle-cell disease, Malaria, Anemia, Sulfadoxine-pyrimethamine
COMMUNICATION
Antioxidant potential of 4-acyl isochroman-1, 3-diones
Djandé Abdoulaye, Kiendrébéogo Martin, Compaoré Moussa, Kaboré Léopold, Nacoulma G. Odile, Aycard Jean-Pierre and Saba Adama
A new family of compounds (4-acyl isochroman-1,3-diones), demonstrating antioxidant properties, have been
synthesized and described. Their antioxidant properties are studied herein. These antioxidant characters increased with
the electronic withdrawing character of the acyl substituent. So, 4-p-Cyanobenzoyl isochroman-1,3-dione and 4-pNitrob(...)
Antioxidant activity, DPPH scavenging activity, Fe3+ reducing power, 4-acyl isochroman-1, 3-diones
ARTICLE
Numeration and Identification of thermotolerant endospore-forming Bacillus from two fermented condiments Bikalga and Soumbala
The thermotolerant Bacillus associated with Bikalga and Soumbala process were screened numbered and identified using standards and PCR methods. Thermotolerant bacteria in Soumbala ranged from 1.35 x [10. sup. 9] to 3 x [10. sup. 9] cfu/g, 1.24 x [10. sup. 9] to 2.78 x [10. sup. 9] cfu/g, 0.54 x [10. sup. 9] to 2.27 x [10. sup. 9] cfu/g, 3.5 x(...)
Mots clés non renseignés
ARTICLE
Antibacterial potential and antioxidant activity of polyphenols of Sesbania grandiflora
M. KIENDREBEOGO
The antibacterial and antioxidant activity of Sesbanial grandiflora used in traditional pharmacopeia in Burkina Faso and elsewhere was evaluated. Aqueous, methanolic and hydro-acetone extractions were carried out on the leaves, stems, and granules, pods of fruit and roots of the plant. The phytochimic groups were identified by the tests of cha(...)
Mots clés non renseignés
ARTICLE
Survival and growth responses of Jatropha curcas L. to three restoration techniques on degraded soils in Burkina Faso
S. TRAORE
Land degradation is a major problem in the Sahelian countries. Erosion control through establishment of vegetation cover is at important strategy to reverse the trend. Our research objective was to analyse the effects of three restoration techniques on Jatropha curcas L. seedlings growth and survivorship. We are conducted two separate field tr(...)
Mots clés non renseignés
ARTICLE
An X-Linked Haplotype of Neandertal Origin Is Present Among All Non-African Populations
122. YOTOVA V, Jean-Francois Lefebvre, Claudia Moreau, Elias Gbeha1, Kristine Hovhannesyan, Stephane Bourgeois, Sandra Bédarida, Luisa Azevedo, Antonio Amorim, Tamara Sarkisian, Patrice Avogbe, Nicodeme Chabi, Mamoudou H. DICKO, Emile Sabiba Kou, Santa Amouzou, Ambaliou Sanni, June Roberts-Thomson, Barry Boettcher, Rodney J. Scott and Damian Labuda
Recent work on the Neandertal genome has raised the possibility of admixture between Neandertals and the expanding population of Homo sapiens who left Africa between 80 and 50 Kya (thousand years ago) to colonize the rest of the world. Here, we provide evidence of a notable presence (9% overall) of a Neandertal-derived X chromosome segment amo(...)
human evolution, archaic lineages, Neandertal admixture, out-of-Africa migration, genetic diversity
ARTICLE
A comparative study of direct and indirect solar drying of mango
D. BATHIEBO
In this work, direct and indirect solar drying parameters of two mango varieties were estimated and compared using direct and indirect solar dryers under the same meteorological conditions. For both drying methods, drying curves were established and fitted using 10 semi-empirical models, drying rate and drying efficiency curves were determined(...)
Mots clés non renseignés
ARTICLE
The flavanone naringenin reduces the production of quorum sensing-controlled virulence factors in Pseudomonas aeruginosa PAO1
M. KIENDREBEOGO
Preliminary screening of the Malagasy plant Combretum albiflorum for compounds attenuating the production of quorum sensing (QS)-controlled virulence factors in bacteria led to the identification of active fractions containing flavonoids. In the present study, several flavonoids belonging to the flavone, flavanone, flavonol and chalcone struct(...)
Mots clés non renseignés
ARTICLE
The flavanone naringenin reduces the production of quorum sensing-controlled virulence factors in Pseudomonas aeruginosa PAO1
Preliminary screening of the Malagasy plant Combretum albiflorum for compounds attenuating the production of quorum sensing (QS)-controlled virulence factors in bacteria led to the identification of active fractions containing flavonoids. In the present study, several flavonoids belonging to the flavone, flavanone, flavonol and chalcone struct(...)
Mots clés non renseignés
ARTICLE
Origines et développement de la métallurgie du fer au Burkina Faso et en Côte d’Ivoire. Premiers résultats sur le site sidérurgique de Korsimoro (Sanmatenga, Burkina Faso).
SIMPORE Lassina
En 2011-12, deux campagnes de recherche sur le terrain ont été organisées à Korsimoro (Burkina Faso), avec les universités de Ouagadougou et d'Abidjan. Par le passé, Korsimoro a été un centre de production du fer majeur à l'échelle de la région, comme en témoignent de très volumineux amas de scories, résidus issus de la réduction du
minerai d(...)
metallurgie, fer, afrique
ARTICLE
Comportement à la corrosion des alliages d’aluminium recyclés pour la confection de marmites
Brahima Sorgho1 , Samuel Paré2∗ , Boubié Guel3 , Lamine Zerbo1 , Karfa Traoré1 , Ingmar Persson
Des études sur la qualité des eaux souterraines et de surfaces au Burkina Faso ont révélé un niveau élevé de contamination de ces ressources par les métaux lourds, notamment dans le milieu urbain et aux alentours des mines. La présence de ces métaux est principalement due aux activités anthropiques liées à l’industrie, l’agriculture ou encore(...)
Métaux lourds, pHpzc, Argile
ARTICLE
Préparation et étude de la phtalocyanine d’or
Bertrand Ouemega, Mabinty Bayo-Bangoura, Karifa Bayo.
Nous avons préparé par la voie humide, à partir du phtalodinitrile et de l’acide
tétrachloroaurique trihydraté, la phtalocyanine d’or (AuPc). Le produit a été caractérisé par
spectrométries de masse, vibrationnelle et électronique.
Métallophtalocyanine ; Or ; UV-visible ; Infrarouge.
ARTICLE
La végétation dans les ruines de Loropéni et leur zone tampon
SIMPORE Lassina
Sur la liste du patrimoine mondial, il existe deux principales catégories de sites. Les sites culturels et les sites naturels. Les ruines de Loropéni font partie de la catégorie culturelle, mais ont cette particularité d’être situées au milieu d’une zone de protection constituée d’une forêt claire et d’une savane arborée couvrant une superfici(...)
Patrimoine, Sites culturels, Sites naturels