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Early detection and response to meningococcal disease epidemics in sub-Saharan Africa: appraisal of the WHO strategy

Autor: Leake J.A.D., Kone M.L., Yada A.A., Barry L.F., Traore G., Ware A., Coulibaly T., Berthe A., Mambu Ma Disu H., Rosenstein N.E., Plikaytis B.D., Esteves K., Kawamata J., Wenger J.D., Heymann D.L., Perkins B.A.

Publikováno v: Bulletin of the World Health Organization, Vol 80, Iss 5, Pp 342-349 (2002)

OBJECTIVE: To assess the sensitivity, specificity and predictive value positive of the WHO threshold strategy for detecting meningococcal disease epidemics in sub-Saharan Africa and to estimate the impact of the strategy on an epidemic at district le

Externí odkaz: https://doaj.org/article/40bb3ebd0e284c3a88932a70b45a77c5

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On a perturbation theory of Hamiltonian systems with periodic coefficients

Autor: Arouna, Traoré G. Y., Dosso, Mouhamadou, Brou, Jean-Claude Koua

A theory of rank $k\ge 2$ perturbation of symplectic matrices and Hamiltonian systems with periodic coefficients using a base of isotropic subspaces, is presented. After showing that the fundamental matrix ${\displaystyle \left(\widetilde{X}(t)\right

Externí odkaz: http://arxiv.org/abs/1712.03604

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Utilisation du semoir philippin, une alternative au repiquage du riz irrigue en zone office du Niger

Autor: Bagayoko, M., Tangara, B., Dicko, M., Traore, G.

Publikováno v: Agronomie Africaine; Vol 29, No 2 (2017): Special Issue; 149-157

Depuis 2008, un équipement de semis de riz pré-germé dénommé semoir philippin a été introduit et testé en zone Office du Niger. Les résultats des tests d’adaptation en station et en milieu paysan de 2009 à 2012 ont montré que cet équipe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=78975075580c::996685835fb8936bec3b36d6d37b0fd8
https://www.ajol.info/index.php/aga/article/view/163192

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