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Search Results: 1 - 10 of 297607 matches for " J. Millogo-Rasolodimby "
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Biogas production using water hyacinths to meet collective energy needs in a sahelian country
O. Almoustapha, S. Kenfack,J. Millogo-Rasolodimby
Field Actions Science Reports (FACTS) , 2009, DOI: 10.5194/facts-2-27-2009
Abstract: This paper presents a pilot project that investigates the possibility of producing biogas from a mixture of water hyacinth and fresh rumen residue – replacing firewood as a source of fuel – to meet the energy needs of a maternity facility in Niamey (Niger). The discontinuous-type installation (batch reactors) is made up of six digesters measuring 5 m3 each. The output during hot and cool seasons, 0.52 m3 and 0.29 m3 respectively of biogas per m3 of digester per day, has met the energy needs of the maternity facility, estimated at 8 m3 of biogas per day. The study revealed strong seasonal variations: output during the hot season is approximatively 1.8 times greater than it is during the cool season. Large quantities of water hyacinth, an invasive plant present in Niger since 1986, are manually harvested in aquatic environments. The project is run by a local NGO, the Groupe d'Initiative pour les Energies Renouvelables (GIER), and supported by UNICEF and the Niger Basin Authority. The duration of the project is 8 months.
Pratiques agricoles et perceptions paysannes des impacts environnementaux de la cotonculture dans la province de la KOMPIENGA (Burkina Faso)
A Gomgnimbou, P Savadogo, A Nianogo, J Millogo-Rasolodimby
Sciences & Nature , 2010,
Abstract: La dégradation des écosystèmes et d’une manière générale de l’environnement au Burkina Faso est liée aux facteurs anthropiques, notamment les activités agricoles. L’objectif de cette étude est de mettre en exergue les pratiques agricoles, les perceptions paysannes des impacts environnementaux et les risques de dégradation des ressources naturelles dans la zone cotonnière de l’Est (Province de la Kompienga). Par le biais (i) d’une enquête auprès d’un échantillon de 60 Unités de Production Cotonnière (UPC), (ii) des interviews semi structurées avec des mara chers (12), des apiculteurs (15), des pêcheurs (29), des éleveurs (54) et des membres de comités villageois de gestion des forêts (23), (iii) et des investigations sur les pratiques agricoles, l’étude a été conduite. Les résultats ont révélé une pression foncière dans la zone avec pour corollaire un abandon des techniques de conservation et de restauration des sols. L’usage des fertilisants organiques est peu répandu. L’étude a révélé que 8 types de rotations culturales sont pratiquées dans la zone. Le type de rotation culturale coton-céréales-coton est pratiqué par 63% des cotonculteurs. Les perceptions paysannes sur la dégradation des ressources végétales, les risques encourus par l’écologie apicole ainsi que des effets négatifs des fertilisants chimiques sur l’eau et les sols sont diversement appréciés. Face à cette situation, il est urgent pour les producteurs de coton d’utiliser les engrais organiques et d’adopter des techniques de conservation et de restauration des sols pour préserver l’exploitation durable des ressources naturelles de la zone. Mots-clés : Culture de coton; Pratiques agricoles; Pression foncière; Risque de dégradation de l’environnement; Burkina Faso.
Utilisation des espèces spontanées dans trois villages contigus du Sud du Burkina Faso
Guigma, Y.,Zerbo, P.,Millogo-Rasolodimby, J.
Tropicultura , 2012,
Abstract: Use of Wild Plants Species in Three Adjoining Village Southern Burkina Faso. Wild species are very important for people in developing countries. To enrich the knowledge of useful wild species, series of ethnobotanical surveys was conducted in three adjoining villages of southern Burkina Faso. This survey has permitted to identify 147 species distributed in 117 genera and 52 families. Woody species represent 60% and grass 40%. Fifty percent of the species used belong to seven families: Poaceae, Caesalpiniaceae, Combretaceae, Mimosaceae, Rubiaceae, Fabaceae and Anacardiaceae. Ninety-seven species are used in medicines, 47 for crafts, 46 for cattle feeding, 40 for human nutrition and 21 to provide fire. In all plants use categories, the calculation of index values showed that there are species that are used more than others. Thus, Sarcocephalus latifolius is the species most commonly used in medicines, Parkia biglobosa in human nutrition, Afzelia africana in cattle feeding, Vitellaria paradoxa in crafts and Detarium microcarpum in wood fuel. The evaluation of the diversity of use revealed that wood species have high diversity of uses than herbaceous. V. paradoxa is the species most diversely used. The top five most used species are V. paradoxa, P. biglobosa, Khaya senegalensis, Tamarindus indica and A. africana. The results of this study provide a database to assess the availability and the evolutionary trend of species widely used in the locality.
Usage des intrants chimiques dans un agrosystème tropical : diagnostic du risque de pollution environnementale dans la région cotonnière de l'est du Burkina Faso
Gomgnimbou APK.,Savadogo PW.,Nianogo AJ.,Millogo-Rasolodimby J.
Biotechnologie, Agronomie, Société et Environnement , 2009,
Abstract: Use of the chemical products in a tropical agrosystem: diagnosis of the risk of environmental pollution in the cotton area of eastern Burkina Faso. The aim through this work was to make a diagnosis of the risk of environmental pollution, consequence of the use of the chemical products of the cotton plant in the area of eastern Burkina Faso. A follow-up of sixty cotton exploitations in the province of Kompienga and observations on husbandries made it possible to collect the data. The study revealed a manifest inaccuracy of proportioning and dilution of insecticides with an average of spreading number of 9.30. Moreover 61.66% of cotton producers applied insecticides of Gossypium sp. (cotton) to Vigna unguiculata (bean), Colocynthis vulgaris L. (melon) and Zea mays (corn) respectively in 60.50%, 9.30%, and 2.32% of the cases of diverted use. The sources of the environmental risk are the parallel circuits of provisioning of pesticides, the washing of the equipment of spreading in the sources of supply water and not respect of the technical routes of chemical products using. The estimate of the risks made it possible to put medical forward those of order, ground and water pollution and of development of resistance at the parasites targeted by the insecticidal treatments. A promotion of good husbandries is essential in the optics of a durable exploitation of the natural resources of the area.
Biogas production using water hyacinths to meet collective energy needs in a sahelian country
O. Almoustapha,S. Kenfack,J. Millogo-Rasolodimby
Field Actions Science Reports , 2009,
Abstract: This paper presents a pilot project that investigates the possibility of producing biogas from a mixture of water hyacinth and fresh rumen residue – replacing rewood as a source of fuel – to meet the energy needs of a maternity facility in Niamey (Niger). The discontinuous-type installation (batch reactors) is made up of six digesters measuring 5 m3 each. The output during hot and cool seasons, 0.52 m3 and 0.29 m3 respectively of biogas per m3 of digester per day, has met the energy needs of the maternity facility, estimated at 8 m3 of biogas per day. The study revealed strong seasonal variations: output during the hot season is approximatively 1.8 times greater than it is during the cool season. Large quantities of water hyacinth, an invasive plant present in Niger since 1986, are manually harvested in aquatic environments. The project is run by a local NGO, the Groupe d’Initiative pour les Energies Renouvelables (GIER), and supported by UNICEF and the Niger Basin Authority. The duration of the project is 8 months. Ce papier présente un projet pilote vérifiant la possibilité de produire du biogaz à partir d’un mélange de jacinthe d’eau et de résidu frais de rumen, en substitution au bois de chauffe pour satisfaire aux besoins en énergie d’une maternité de Niamey (Niger). L’installation de type discontinu (réacteurs batch) est composée de six digesteurs de 5 m3. Les rendements en saison chaude et en saison fra che, respectivement 0,52 et de 0,29 m3 de biogaz par m3 de digesteur par jour et ont permis de couvrir les besoins de la maternité évalués à 8 m3 de biogaz par jour. L’étude révèle une forte variation saisonnière : le rendement en saison chaude est d’environ 1,8 fois supérieur à celle de la saison fra che. La jacinthe d’eau est une plante envahissante présente au Niger depuis 1986, dont des quantités importantes sont récoltées en milieux aquatiques. Le projet est porté par une ONG locale, le Groupe d’Initiative pour les Energies Renouvelables (GIER) et est supporté par l’UNICEF et l’Autorité du Bassin du Niger. La durée du projet est fixée à huit mois. Presenta un proyecto piloto que investiga la posibilidad de producir biogás a partir de jacintos de agua y residuos ruminales frescos, que sustituyen a la madera como fuente de combustible, para cubrir las necesidades energéticas del hospital de maternidad de Niamey (Níger). La instalación activada en discontinuo (reactores secuenciales) está formada por seis digestores de 5 m3 cada uno. La producción durante las estaciones de calor y frío, 0,52 m3 y 0,29 m3 de biogás respectivamente por m3 de dig
Phytochemical, Antibacterial and Antioxidant Investigations of Sesbania rostrata Dc (Fabaceae) Extracts form Leaves, Stems, Granulates, Pods and Roots
M.B. Ouattara,M. Kiendrébéogo,M. Compaore,J. Millogo-Rasolodimby
Current Research Journal of Biological Sciences , 2011,
Abstract: The antibacterial, antioxidant activities and the phytochemical analysis of Sesbania rostrata used in traditional medicine in Burkina Faso were investigated. Aqueous, methanolic and hydro-acetone extracts from leaves, stems, granules, pods and roots organs have demonstrated a good polyphenolic, tannin and flavonoids with variable anti-DPPH, Iron III reduction and antibacterial capacities. Particularly methanol extract form leaves possessed 46.33 mgEGA/100 mg and 25.98 mgETA/100 mg in polyphenolic and tannin content respectively. Beside TLC analysis of this extract demonstrated the presence of quercetin, kaempferol, rutin, caffeic and gallic acids. It was presented a good possibility to inhibit bacteria growth, radical DPPH and to reduce Iron III. These biological activities could support the traditional uses of this plant.
The language of Burkinabè masks: an esoteric discourse?
L Millogo
Tydskrif vir letterkunde , 2007,
Abstract: Le language des masques burkinabè : un discours ésotérique ? Les masques burkinabè sont un langage a priori ésotérique compte tenu de leur caractère initiatique, mythique et secret. Cependant ils sont aussi exotériques en tant qu’expression sociale et religieuse communautaire. Ils sont un langage parce qu’ils ont une fonction expressive. Ils sont des messages pour l’ensemble de la communauté où ils se manifestent. Leur antinomie, ésotérisme/exotérisme, explique leurs deux aspects. Premièrement, les masques ont un volet réservé à une élite qui y accède uniquement par enseignement secret (ésotérisme) et qui détient les mythes explicatifs et les techniques de fabrication. Deuxièmement, les masques ont une fonction socio-religieuse qui est communautaire et populaire c’est-à-dire ouverte à la connaissance de tous (exotérisme) : ils expriment les croyances fondamentales, les prières d’expiation, de demande de prospérité et de paix de toute la communauté. Cela est dit à tout le monde. Beaucoup de signes utilisés dans les manifestations des masques appartiennent du reste au code symbolique lisible par tous (les formes animales ou imaginaires des masques, leurs espaces d’évolution, leurs gestes, leurs danses, les dispositions du public …). Mots clés : masques burkinabè, langage, exotérisme, ésotérisme. Tydskrif vir Letterkunde Vol. 44 (1) 2007: pp. 181-190 Article text in French
Le language des masques burkinabè: un discours ésotérique ?
L Millogo
Tydskrif vir letterkunde , 2007,
Abstract: Les masques burkinabè sont un langage a priori ésotérique compte tenu de leur caractère initiatique, mythique et secret. Cependant ils sont aussi exotériques en tant qu'expression sociale et religieuse communautaire. Ils sont un langage parce qu'ils ont une fonction expressive. Ils sont des messages pour l'ensemble de la communauté où ils se manifestent. Leur antinomie, ésotérisme/exotérisme, explique leurs deux aspects. Premièrement, les masques ont un volet réservé à une élite qui y accède uniquement par enseignement secret (ésotérisme) et qui détient les mythes explicatifs et les techniques de fabrication. Deuxièmement, les masques ont une fonction socio-religieuse qui est communautaire et populaire c'est-à-dire ouverte à la connaissance de tous (exotérisme) : ils expriment les croyances fondamentales, les prières d'expiation, de demande de prospérité et de paix de toute la communauté. Cela est dit à tout le monde. Beaucoup de signes utilisés dans les manifestations des masques appartiennent du reste au code symbolique lisible par tous (les formes animales ou imaginaires des masques, leurs espaces d'évolution, leurs gestes, leurs danses, les dispositions du public …)
Epidemiology of Sexual Behaviour with Risk of Sexually Transmissible Infection (STI) among Students in Africa: The Case of the University of Ouagadougou  [PDF]
C. M. R. Ouedraogo, F. D. Millogo Traore, A. Ouattara, A. Ouedraogo, X. Kaboré, D. P. Kain, B. Yaméogo, E. Komboigo, M. Guinko, J. Lankoandé
Open Journal of Obstetrics and Gynecology (OJOG) , 2016, DOI: 10.4236/ojog.2016.64028
Abstract: Objective: To study the sexual risk behaviors and their determining role in sexually transmissible infection (STI) and HIV among students of the University of Ouagadougou. Methodology: It was a descriptive and analytical single pass cross-sectional study from June 22 to July 21 2010 at the University of Ouagadougou. A cluster sampling in two stages was adopted to form a population of 762. Data were collected using a standardized written questionnaire completed by individual interview after informed consent. Results: The average age of students was 24.2 ± 2 years old for men and 23.7 ± 2 years old women. Singles represented 95.1% of students. The students were not scholarship grantees in 90.6% of the sample. Knowledge about STIs was average in 60.2% of cases. In total 33.65% of the students admitted to having had multiple sexual partners, 19.57% had sex with prostitutes, 34.62% had unprotected sex, 4% practiced sodomy without condoms and 3.1% of students had sex in group with one partner. In multivariate analysis, male gender was the determining factor associated with multiple sexual partner (OR = 3.30 95% CI = 2.19 to 4.95) and relations with prostitutes with an odds ratio of 16.13 (95 = 6.87% to 37.8%). The female gender was the determining factor associated with not using a condom with odds ratio of 1.5 (95% CI = 1.01 to 2.16). Conclusion: There are many risk behaviors for HIV transmission among students of the University of Ouagadougou. The urgent implementation of specific prevention programs to benefit this population is essential.
Effect of Cowpea Seeds Contamination Rate by the Cowpea aphid borne mosaic virus on Epidemics Development
B.J. Neya,J. Zabre,R.J. Millogo,S. Ginko
Pakistan Journal of Biological Sciences , 2007,
Abstract: Cowpea aphid borne mosaic virus (CABMV) diseased seeds provide at seedling, virus infected plants which are the only source of primary inoculum. Secondary infections are bequeathed by aphids. The objective of this research is to study the development of the secondary infection in field. Therefore, eight cowpea varieties with different seed contamination rate (0, 0.05, 0.25, 0.5, 1, 5%) were used over consecutive four years. The infected plants were recorded every week from the tenth day after sowing and over seven weeks. In the same way, aphids` population were evaluated in plots 30 days after sowing. There was no difference for the incidence rate between the average of plots sown with virus free-seeds and those sown with infected seeds with a rate of 0, 5%. In any case, the disease progressed lowly leading to incidences less than 50% at the post-flowering period in spite of a relatively high initial contamination rate of seed. For this group of varieties, the low progression of the disease indicated a high level of resistance to the infection. The high levels of infection especially observed with the varieties with high level of virus transmission to seed, translated the need to reduce aphids` population density notably by the use of insecticides during cowpea growing cycle. The high number of aphids and inoculum availability in the neighbouring plots were undoubtedly at the source of this result. This situation laid out the problematic of the use of seeds then little or not contaminated by the virus.
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