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Search Results: 1 - 10 of 2374 matches for " Guillaume Bado "
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Mortality of HIV-Infected Patients on Antiretroviral Therapy in a Large Public Cohort in West Africa, Burkina Faso: Frequency and Associated Factors  [PDF]
Armel Poda, Arsène Hema, Jacques Zoungrana, Nongodo Firmin Kaboré, Bebar Euloges Kamboulé, Ibrahim Soré, Guillaume Bado, Abdoul-Salam Ouédraogo, Nicolas Meda, Adrien Bruno Sawadogo
Advances in Infectious Diseases (AID) , 2013, DOI: 10.4236/aid.2013.34043
Abstract:

Background: In sub Saharan Africa, small size surveys have demonstrated early high mortality among infected patients on antiretroviral therapies (ART). Few studies have been conducted in large cohorts of HIV-patients in public health care system in West Africa. Objectives: Our study aims to determine mortality rate and its predictors in a cohort of patients on ART in a public daycare hospital in Burkina Faso. Methods: We have carried out a retrospective cohort study. All HIV-infected patients on ART between January 1st 2008 and December 31st 2011 were included in the study. Survival probability was estimated by the Kaplan-Meier method. Cox regression analysis was used to identify associated factors to mortality. Results: A total of 2243 HIV-infected patients were included in the study. During the follow-up, 218 patients representing 9.7% were lost. About 104 patients representing 4.6% were transferred and 1691 representing 75.4% were still in the therapeutic cohort. There were 230 death cases for a total of 4282 persons-years, (5.4 deaths for 100 persons-years; 95% CI: 4.8

DINáMICA POBLACIONAL DE CALIROA CERASI L. (HYMENOPTERA: TENTHREDINIDAE) EN CULTIVOS DE CEREZO (PRUNUS AVIUM L.) DEL VALLE INFERIOR DEL RíO CHUBUT(REGIóN PATAGONIA SUR- ARGENTINA)
Bado,Silvina G;
Idesia (Arica) , 2010, DOI: 10.4067/S0718-34292010000300007
Abstract: caliroa cerasi, or "pear slug", causes important damages in cherry orchards of the lower valley of the chubut river. the principal aim of this work was to know their biology and poputation dynamic in this region, being these aspects basic to develop management strategies compatible with a pest integrated management programme. for this purpose, a scouting in three commercial orchards and in an experimental inta chubut plot during two consecutives growing seasons (2005/2006 y 2006/2007) was held. these consisted in the adults capture by chromatographic traps meanwhile in case of eggs and larvae, a direct sampling was done. in order to ajust sampling technics, during the second growing season, two stratum of the plant (lower and medium) were considered. population density was high in an organic production. population fluctuations indicate that the species present three generations annually in virch. significant differences in eggs levels between plant stratums were found only in two dates in an orchard conducted by a "central axis" system, but no in larvae case.
DINáMICA POBLACIONAL DE CALIROA CERASI L. (HYMENOPTERA: TENTHREDINIDAE) EN CULTIVOS DE CEREZO (PRUNUS AVIUM L.) DEL VALLE INFERIOR DEL RíO CHUBUT(REGIóN PATAGONIA SUR- ARGENTINA) POPULATION DYNAMIC OF CALIROA CERASI L. (HYMENOPTERA: TENTHREDINIDAE) IN CHERRY (PRUNUS AVIUM L.) ORCHARDS OF LOWER VALLEY OF THE CHUBUT RIVER(SOUTH PATAGONIA REGION- ARGENTINE)
Silvina G Bado
IDESIA , 2010,
Abstract: Caliroa cerasi, la "babosita del peral", ocasiona importantes da os en cultivos de cerezo del Valle Inferior del Río Chubut. El principal objetivo del trabajo fue conocer la biología y dinámica poblacional de la especie en esta región, aspectos básicos para el desarrollo de estrategias de manejo enmarcadas en un Programa de Manejo Integrado de Plagas. Para ello se llevó a cabo un monitoreo en tres predios comerciales y en una parcela experimental del INTA Chubut, durante dos campa as (2005/2006 - 2006/2007), que consistió en el uso de trampas cromatográficas para la captura de adultos, mientras que en el caso de los huevos y las larvas se realizó un conteo directo en hojas. En la segunda campa a, con el fin de ajustar técnicas de muestreo, se tuvieron en cuenta dos estratos de la planta (inferior y medio). Las mayores densidades larvales fueron halladas en una producción orgánica. Las fluctuaciones poblacionales indican que la especie presenta en el VIRCH tres generaciones anuales. Sólo se hallaron diferencias significativas en la cantidad de huevos presentes en los estratos inferior y medio en el predio con sistema de conducción "eje central" en el caso de dos fechas, pero no en el caso de las larvas. Caliroa cerasi, or "pear slug", causes important damages in cherry orchards of the Lower Valley of the Chubut River. The principal aim of this work was to know their biology and poputation dynamic in this region, being these aspects basic to develop management strategies compatible with a Pest Integrated Management Programme. For this purpose, a scouting in three commercial orchards and in an experimental INTA Chubut plot during two consecutives growing seasons (2005/2006 y 2006/2007) was held. These consisted in the adults capture by chromatographic traps meanwhile in case of eggs and larvae, a direct sampling was done. In order to ajust sampling technics, during the second growing season, two stratum of the plant (lower and medium) were considered. Population density was high in an organic production. Population fluctuations indicate that the species present three generations annually in VIRCH. Significant differences in eggs levels between plant stratums were found only in two dates in an orchard conducted by a "central axis" system, but no in larvae case.
Social Media and Marketing of Higher Education: A Review of the Literature
Josiah Nyangau,Niamboue Bado
Journal of the Research Center for Educational Technology , 2012,
Abstract: The emergence of social media has revolutionized the practice of communication in two fundamental ways. First, social media have made it possible for one person to send an instant message to millions of others worldwide. Second and perhaps more important, social media make it possible to establish a two-way communication channel between the sender and receivers or simply between receivers or “followers” outside the control of the original sender. Social media, therefore, transcend the traditional bureaucracy when it comes to marketing or seeking information from an institution. We conducted a review of the literature to find out how institutions of higher education are leveraging social media for recruitment and admissions purposes, and whether prospective students use social media in their college search process. Our findings indicate that social media use by institutions of higher education is on the rise, yet it is unclear whether content on university social media pages influences prospects’ choice-making processes.
Theoretical and Numerical Comparison of Limit Point Bifurcation and Maximum Force Criteria. Application to the Prediction of Diffuse Necking  [PDF]
Guillaume Altmeyer
Modeling and Numerical Simulation of Material Science (MNSMS) , 2013, DOI: 10.4236/mnsms.2013.31006
Abstract: A large number of criteria has been developed to predict material instabilities, but their choice is limited by the lack of existing comparison of their theoretical basis and application domains. To overcome this limitation, a theoretical and numerical comparison of two major models used to predict diffuse necking is present in this paper. Limit Point Bifurcation criterion is first introduced. An original formulation of the Maximum Force Criterion (MFC), taking into account the effects of damage and isotropic and kinematic hardenings, is then proposed. Strong connections are shown between them by comparing their theoretical basis. Numerical Forming Limit Diagrams at diffuse necking obtained with these criteria for different metallic materials are given. They illustrate the theoretical link and similar predictions are shown for both models.
Nematode infestation and N-effect of legumes on soil and crop yelds in legume-sorghum rotations  [PDF]
Vincent Bado, Abdoulsalam Sawadogo, Bouma Thio, André Bationo, Karim Traoré, Michel Cescas
Agricultural Sciences (AS) , 2011, DOI: 10.4236/as.2011.22008
Abstract: The effects of cowpea (Vignaunguiculata) and-groundnut (Arachis hypogea) on succeeding sorghum yields, soil mineral N and nematode infestationwere studied during five cropping seasons (2000 to 2004) in a weakly acid Ultisol of the agronomy research station of Farakô-Ba lo-cated in the Guinean zone of Burkina Faso, West Africa. A factorial 5x5 design of five crop rotations with five fertilizer treatments in a split-plot arrangement with four replications was used.Sorghum yields were affected by the two factors (rotation with legumes and fertilizer ap-plications) during the four years. But interactions were not observed between the two factors. Monocropping of sorghum produced the lowest yields and legume–sorghum rotations increased sorghum yields by50% to 300%. Ground-nut–sorghum and cowpea–sorghum rotations increased soil mineral N by36% and 52%, re-spectively. Crop rotation influenced nematode infestation but the effects on soil and sorghum root infestation differed according to the rotation. The cowpea–sorghum rotation increased soil and sorghum root infestationby nematodes while groundnut–sorghum decree-sed the nematode population. The soil of the cowpea-sorghum rotation contained 1.5 to 2 times more nematodes than the soil of the monocropping of sorghum. In contrast, the soil ofthe groundnut–sorghum rotation contained from 17 to 19 times fewernematodes than that of themonocropping of sorghum. However, nematode infestation did not affect any of the succeeding sorghum yields. It was concluded that the parasitic effect of nematodes was limited by the predominance of positive N-effects on the development of succeeding sorghum.
Attempts to Answer on the Origin of the High Nitrates Concentrations in Groundwaters of the Sourou Valley in Burkina Faso  [PDF]
Francis Rosillon, Boubacar Savadogo, Aminata Kabore, Hortense Bado-Sama, Dayeri Dianou
Journal of Water Resource and Protection (JWARP) , 2012, DOI: 10.4236/jwarp.2012.48077
Abstract: Within the framework of the contract of Sourou River, a survey of the groundwater quality was performed through 7 campaigns of water sampling and analysis from 2006 till 2012. The water samples resulted from 23 drillings and 9 wells located in the Sourou Valley. Among the analyzed physico-chemical parameters, the nitrates concentrations observed were worrisome. Out of 32 water sources, 14 (44%) supplied a nitrates content superior to the WHO threshold value for drinking water (50 mg NO3/L). Very high concentrations, superior to 500 mg NO3/L with a peak in 860 mg/L, were observed. Given the important variations observed from a sampling point to another, a generalized contamination of the total aquifer was not possible. An individual diagnosis allowed to identify the possible causes of this degradation. Several sources of contamination, in connection with the anthropological activities, were observed near the water facilities (drillings/wells): animal and human wild defecation, presence of nontight latrines, solid waste, wastewater discharges. It is also advisable to wonder about the impact of the dynamite use for digging wells, this one being able to leave nitrates in the water. With regard to the intensive use of water from the strongly contaminated wells and drillings by the rural populations of Sourou, implementing protection areas within which would be eliminated the sources of contamination in addition to health education among populations could improve the situation. Care should also be taken in the use of nitrates explosives for digging new wells or drillings.
Problematic of Drinking Water Access in Rural Area: Case Study of the Sourou Valley in Burkina Faso  [PDF]
Savadogo Boubacar, Kaboré Aminata, Zongo Dramane, Poda Jean Noel, Bado Hortense, Rosillon Francis, Dayeri Dianou
Journal of Environmental Protection (JEP) , 2013, DOI: 10.4236/jep.2013.41004
Abstract:

Safe drinking water access for rural populations in developing countries remains a challenge for a sustainable development. The study aims to investigate the drinking water quality and the factors affecting this quality in the Sourou valley in Burkina Faso. A total of 135 water samples were collected in sterile glass bottles during the dry seasons 2007, 2008, and 2012 from 10 drillings and 5 wells. Fifteen physicochemical parameters and two fecal pollution indicators (Escherichia coli and fecal Coliforms) were monitored based on laboratory standard methods. Datas were analyzed, using the Student t’ test and XLSTAT 7.5.2 statistical software. From results obtained, water quality was related to water source and sampling period as well (p < 0.0001). 30% of drillings provided water with nitrates concentration over the World Health Organization (WHO) guideline value. High turbidity was also observed for some drillings. Moreover, 90% of drillings showed water total hardness largely over the WHO threshold value. Water from drillings were exempt of fecal pollution, contrasting with the wells one which appeared uniformly polluted with concentrations exceeding sometimes 103 and 104 CFU/100 ml for E. coli and fecal Coliforms, respectively. Field investigations showed a preference of wells as drinking water source, and that appeared related to the lack of self-management of drillings and to cultural considerations. Overall, this study highlighted that a regular survey of water quality, management of protection zones around drinking water sources, sensitization on water resources self-management, hygiene and health issues, and providing appropriate household disinfection methods could help advancing to reach an effective safe drinking water access for rural populations in the country.

Mutagenic Effects of Gamma Radiation on Eight Accessions of Cowpea (Vigna unguiculata [L.] Walp.)  [PDF]
Festus Olakunle Olasupo, Christopher Olumuyiwa Ilori, Brian Peter Forster, Souleymane Bado
American Journal of Plant Sciences (AJPS) , 2016, DOI: 10.4236/ajps.2016.72034
Abstract: Mutagenesis is used for creating new genetic variability in cultivar improvement. Optimal mutagenic treatment is required for effective mutation induction in crop species. Therefore, radio-sensitivity of cowpea accessions to gamma irradiation was investigated. Seeds of eight cowpea accessions were irradiated with 60Co gamma radiation doses of 100, 200, 300, 400 and 500 Gy. The seeds were sown in pots to evaluate the treatment effects on seed germination (SG), seedling survival (SS) and growth habits of M1 generation. Data were analyzed using descriptive statistics. Low rates of SG (10% - 45%) were recorded at higher doses (500 - 400 Gy) in Ife Brown (IB) and its derivatives, whereas high SG rates (74% - 94%) were observed in IT90K-284-2 across all treatments. Percentage SS was inversely related to gamma dosage. A wide range of LD50 for SG (329 - 1054 Gy) and SS (149 - 620 Gy) were observed across the cowpea accessions. Low LD50 scores for SG (329 - 516 Gy) and SS (149 - 357 Gy) were observed among cowpea with rough seed coat, whereas cowpea with smooth seed coat recorded higher LD50 for SG (521 and 1054 Gy) and SS (449 and 620 Gy). Seed germination LD50 and SS LD50 were highly correlated with mean coat thickness (0.899 and 0.937) than mean seed weight (0.621 and 0.678). Gamma irradiation of cowpea seed at low dosage (100 Gy) increased the vigor of M1 seedlings with respect to primary leaf area, terminal leaflet area, seedling height and plant height at six weeks. Doses of 200 Gy and above resulted in a progressive reduction in vigor of plant and seed setting of cowpea. Radio-sensitivity varied with cowpea genotype and was associated with seed testa texture, thickness and seed weight. Low gamma irradiation treatment (100 Gy) may be used to enhance seedling vigor, vegetative growth and yield of cowpea at M1 generation.
Reducing the Medical Cost of Deliveries in Burkina Faso Is Good for Everyone, Including the Poor
Valéry Ridde, Seni Kouanda, Aristide Bado, Nicole Bado, Slim Haddad
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0033082
Abstract: Since 2007, Burkina Faso has subsidized 80% of the costs of child birth. Women are required to pay 20% (900 F CFA = 1.4 Euros), except for the indigent, who are supposed to be exempted. The objective of the policy is to increase service utilization and reduce costs for households. We analyze the efficacy of the policy and the distribution of its benefits. The study was carried out in Ouargaye district. The analysis was based on two distinct cross-sectional household surveys, conducted before (2006; n = 1170) and after (2010; n = 905) the policy, of all women who had had a vaginal delivery in a public health centre. Medical expenses for delivery decreased from a median of 4,060 F CFA in 2006 to 900 F CFA in 2010 (p<0.001). There was pronounced contraction in the distribution of expenses and a reduction in interquartile range. Total expenses for delivery went from a median of 7,366 F CFA in 2006 to 4,750 F CFA in 2010 (p = 0.001). There was no exacerbation of the initial inequalities of the share in consumption after the policy. The distribution of benefits for medical expenses showed a progressive evolution. The greatest reduction in risk of excessive expenses was seen in women in the bottom quintile living less than 5 km from the health centres. Only 10% of those in the poorest quintile were exempted. The subsidy policy was more effective in Burkina Faso than in other African countries. All categories of the population benefited from this policy, including the poorest. Yet despite the subsidy, women still carry a significant cost burden; half of them pay more than they should, and few indigents are fully exempted. Efforts must still be made to reach the indigent and to reduce geographic barriers for all women.
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