Evaluation of the effect of farmer field school approach on the adoption of improved production technologies for millet and cowpea in central southern Niger

La diffusion des technologies améliorées par l’approche champ école paysan (CEP) interroge sur le taux d’adoption par les producteurs. L’objectif de cette étude et de connaître les déterminants de l’adoption des technologies et son impact sur le rendement et le revenu agricole. Il a été interviewé 380 producteurs dont 150 apprenants de CEP, 150 producteurs n’ayant pas participé au processus mais résidants des villages CEP et 80 producteurs des villages témoins. Le modèle de régression Logit a été utilisé pour l’analyse des données. Il ressort de cette étude que l’approche CEP influence l’adoption des technologies. Cette adoption a permis une augmentation de rendement du mil de 99 % et de celui du niébé de 136 % ainsi qu’une hausse de revenu de 97 % pour le mil et 120 % pour le niébé. Les facteurs déterminant les résultats de ce travail pourront être mis à profit pour renforcer les programmes de vulgarisation de technologies agricoles de production. Mots clés: Diffusion, pratique agricole, CEP, Maradi, ZinderThe dissemination of improved technologies through the farmer field school approach (CEP) asks about their adoption by producers. The objective of this study is to know the determinants of technology adoption and its impact on agricultural yield and income. 380 producers were interviewed including 150 CEP learners, 150 producers who did not participate in the process but residents of the CEP villages and 80 producers from the control villages. The logit regression model was used for data analysis. This study showed that CEP approach influences the adoption of technologies. This adoption resulted in an increase in yield of millet by 99% and cowpea by 136 %, as well as a 97 % increase in revenue for millet and 120 % for cowpea. The determining factors of this work the results may be used to strengthen extension programs for agricultural production technologies. Keywords: Diffusion, agricultural practice, CEP, Maradi, Zinde

Bud age affects sprouting and flowering in clementine mandarin (Citrus reticulata Blanco)

[No abstract available]Articl

Abnormal brain scan with subacute extradural haematomas

Four patients are described with proven subacute extradural haematomas, each with an abnormal cerebral scan of diagnostic assistance. A possible mechanism of production of the subacute extradural haematoma is discussed, and appears to be similar to the mechanism involved in the subacute subdural haematoma. The means by which the abnormal scan results in such cases is also examined, from which it appears that non-specific meningeal membrane inflammatory reaction surrounding the haematoma is significant

CD8(+) T cells characterize early smoking-related airway pathology in patients with asthma

Pathogenesis and treatment of chronic pulmonary disease

Fractional statistics description applied to protein adsorption: effects of excluded surface area on adsorption equilibria

Adsorption of large molecules blocking more than one adsorption center on a lattice is described as a fractional statistics problem, based on Haldane’s statistics. Excluded surface area is characterized by a statistical exclusion parameter, g, which relates to the molecular size and lattice geometry. The theoretical formalism reproduces the classical Langmuir equation (one excluded state limit), and gives a framework and compact equations to consistently describe the adsorption thermodynamics of structurally diverse proteins ranging from simple species to large ligands.Fil: Quiroga, Evelina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; ArgentinaFil: Riccardo, Jose Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; ArgentinaFil: Ramirez Pastor, Antonio Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico San Luis. Instituto de Física Aplicada; Argentin