Time filter

Source Type

Abidjan, Ivory Coast

Otchoumou A.,University bobo Adjame | Dupont-Nivet M.,French National Institute for Agricultural Research | Dosso H.,University dAbobo Adjame
Invertebrate Reproduction and Development

Ten month old Archachatina ventricosa (Gould 1850) snails with an average body weight of 53.37 g and 68.50mm shell length were fed two vegetable (R 1 and R2) and four concentrated diets (RT, R3, R4 and R5) with variable calcium content (0.83%; 4.65%; 06.84%; 12.01%; 14.02% and 16.01%, respectively) in order to determine the effects of diets and dietary calcium on reproductive performances. Concentrated diets stimulated reproduction while these events were reduced by vegetable diets. The results showed that the characteristics of the eggs (mean weight, largest diameters and smallest diameters of eggs) increased with the dietary calcium increment. In general, reproductive parameters decreased with dietary calcium increment excepted diet R5. However, the best reproductive performance was obtained with a mixture of a pilot diet (RT) and a calcium rich, concentrated flour diet (R5). © 2012 Taylor & Francis. Source

Koudou B.G.,Vector Group | Koudou B.G.,Center Suisse Of Recherches Scientifiques | Koudou B.G.,University bobo Adjame | Doumbia M.,Center Suisse Of Recherches Scientifiques | And 7 more authors.
Annals of Tropical Medicine and Parasitology

The seasonality of malaria transmission was investigated in two villages in central Côte d'Ivoire: one usually with irrigated rice farming (Zatta) and one without (Tiémélékro). Adult mosquitoes were collected, from February 2002 to August 2005, inside and outside sentinel houses. In Tiémélékro, the biting rate of Anopheles gambiae s.s. showed a significant difference between the dry and rainy season only in 2003 (P<0.001). The corresponding rates for An. funestus s.s. showed significant seasonal differences in both 2002 and 2003 (P<0.001 for each year). In Zatta in 2003-2004, when irrigated rice farming was interrupted, there was no significant difference between the An. gambiae s.s. biting rates recorded in the dry and rainy seasons. In both 2002 and 2005, however, when irrigated rice farming was practised, the An. gambiae s.s. biting rate recorded in Zatta during the rainy season was significantly higher than that seen in the dry season (P<0.001 for each year). With just one exception (in Tiémélékro in 2005, the prevalence of Plasmodium infection in the An. funestus was significantly higher in the rainy season than in the dry season), no significant seasonal differences were seen in the prevalences of Plasmodium infection among the An. gambiae or An. funestus. In conclusion, although malaria transmission is quite stable in central Côte d'Ivoire throughout the year, it can be distinctly modified by irrigated rice farming. © 2010 The Liverpool School of Tropical Medicine. Source

Adama B.,University bobo Adjame | Cyrille C.,Conservatoire et Jardin botaniques de la Ville de Geneva | Pascal M.,Conservatoire et Jardin botaniques de la Ville de Geneva | Dossahoua T.,University Of Cocody | Laurent G.,Conservatoire et Jardin botaniques de la Ville de Geneva
European Journal of Scientific Research

This floristic study of the fragments forest is located in the Taï area in the Southwestern of Côte d'Ivoire. In this region we still finds many forest fragments (from 0.5 ha and more than 34 ha). The objectif of this study is to make a floristic description of of the Taï area fragments forests which have never been done and also to see whether the effects of fragmentation did not modify the floristic gradient observed in the contunous forests on both sides of our study area. For collecting data, we used the linear method. The results of the study showed that the fragments forest of the western Côte d'Ivoire, are very rich by primary species, followed by secondary species and pioneer species. The hierarchical classification of these floristic data shows an agglomeration of plots according to the geographical proximity and not according to fragments size. This link between geographical position and the floristic composition had been confirmed by the test of mantel. In fragments forests there are also a floristic difference between the South and the North of Taï area. Although having supported the multiplication of the secondary and primary species, the floristic gradients is not modified the consequence of fragmentation. © EuroJournals Publishing, Inc. 2011. Source

Sombo A.P.,University Of Cocody | Kouassi F.W.,University bobo Adjame | Sombo B.C.,University Of Cocody | Kouame L.N.,University Of Cocody | Kouassi E.G.,University Of Cocody
European Journal of Scientific Research

Electrical resistivity methods (resistivity profiling and vertical electric soundings) contribution in characterization of fractured aquifers of the crystalline basement, mainly aims to optimize groundwater drillings in fractured reservoirs of Sikensi department (South of Côte d'Ivoire). Not only, will these methods help to reduce greatly the failure rate of these drillings, but also to increase the profitability of investments. Electrics resistivity profiling are lateral investigation methods which allow following the lateral continuity of a layer of ground by highlighting contrasts in resistivity. They were made according to rectangle gradient configuration. Vertical electric sounding made, according to Schlumberger configuration, inform about thicknesses of weathered layers and of fractures. Interpretation of resistivity profiles and maps outcome to electric resistivity profiling determines several interconnected fractures, whose geometric characteristics (orientations) are compared with data from major fractures from the geological map. Interpretation of geoelectric data from soundings, by "Ipi2win" software, coupled with geological and hydrogeological investigations (drillings data), produces thicknesses of weathered layers and substratum depth. © EuroJournals Publishing, Inc. 2011. Source

Ekou L.,University bobo Adjame | Ekou T.,University bobo Adjame | Opalinski I.,University of Poitiers | Gesson J.P.,University of Poitiers
E-Journal of Chemistry

The inhibition of HDAC (histone deacetylase) activity by specific inhibitors induces growth arrest, differentiation and apoptosis of transformed or everal cancer cells. Some of these inhibitors are in clinical trial at phase I orphase II. The discovery and development of specific HDAC inhibitors are helpful for cancer therapy. In this paper we describe the synthesis of simple nhibitor B hybrid analogue suberoylanilide hydroxamic acid (SAHA), trapoxin B (TPX B) in as little as five steps. This compound is interesting lead for thedesign of potent inhibitors of histone deacetylase. Source

Discover hidden collaborations