نتایج جستجو برای: west african
تعداد نتایج: 189401 فیلتر نتایج به سال:
Herpetological Review 35(2), 2004 the West African Savanna. Edition Chimaira, Frankfurt am Main. 332 pp. ––––––, M. SPIELER, K. GRABOW, and C. BÖCKHELER. 1995. Hemisus marmoratus (Peters, 1854) (Anura: Hemisotidae), Fortpflanzungsstrategien eines Savannenfrosches. Bonn. Zoo. Beitr. 45:191–207. SPIELER, M., and K. E. LINSENMAIR. 1998. Migration patterns and diurnal use of shelter in a ranid frog...
The malaria-induced surface antigens on Plasmodium falciparum-infected erythrocytesfrom West African patients were characterized by agglutination of infected cells by human sera, surface immunofluorescence of live infected cells, inhibition of cytoadherence to C32 melanoma cells by human sera, immunoelectron microscopy (immunoEM), and immunoprecipitation. In a nonimmune individual, serum antibo...
Our understanding of the global ecology of influenza viruses is impeded by historically low levels of viral surveillance in Africa. Increased genetic sequencing of African A/H1N1 pandemic influenza viruses during 2009-2013 revealed multiyear persistence of 2 viral lineages within West Africa, raising questions about the roles of reduced air traffic and the asynchrony of seasonal influenza epide...
In this study, we retrospectively analysed a total of 605 clinical isolates from six West or Central African countries (Benin, Cameroon, Central African Republic, Guinea-Conakry, Niger and Senegal). Besides spoligotyping to assign isolates to ancient and modern mycobacterial lineages, we conducted phenotypic drug-susceptibility-testing for each isolate for the four first-line drugs. We showed t...
In West Africa, as in Majority World countries, people with a communication disability are generally cut-off from the normal development process. A long-term involvement of two partners (Orthophonistes du Monde and Handicap International) allowed the implementation in 2003 of the first speech-language pathology qualifying course in West Africa, within the Ecole Nationale des Auxiliaires Medicau...
The roan antelope (Hippotragus equinus) is the second largest African antelope, distributed throughout the continent in sub-Saharan savannah habitat. Mitochondrial DNA (mtDNA) control region sequencing (401 bp, n = 137) and microsatellite genotyping (eight loci, n = 137) were used to quantify the genetic variability within and among 18 populations of this species. The within-population diversit...
BACKGROUND The need for locally-driven, locally-generated evidence to guide health policy and systems decision-making and implementation in West Africa remains urgent. Thus, health policy and systems research (HPSR) is a field with great potential for addressing many of the sub-region's intransigent health challenges. This paper presents an analysis of trends and patterns of peer-reviewed HPSR ...
BACKGROUND Vector competence of Aedes aegypti mosquitoes is a quantitative genetic trait that varies among geographic locations and among different flavivirus species and genotypes within species. The subspecies Ae. aegypti formosus, found mostly in sub-Saharan Africa, is considered to be refractory to both dengue (DENV) and yellow fever viruses (YFV) compared to the more globally distributed A...
Regional and Local-Scale Population Structure of a Primitive Teleost, the African Bonytongue, (Heterotis niloticus), in Rivers of West Africa. (August 2012) Elizabeth Carrera, B.L.A., Texas A & M University Co-Chairs of Advisory Committee: Dr. Kirk O. Winemiller Dr. Luis A. Hurtado The African bonytongue (Heterotis niloticus), one of two living species of the primitive teleost family Arapaimida...
Hospital discharge rates for various immigrant groups resident in Greater London and the West Midlands were studied to compare the incidence of two diseases of the nervous system-motor neurone disease (MND) and multiple sclerosis (MS). For both these conditions immigrants from Europe, Ireland, America and from the old commonwealth countries of Canada, Australia, and New Zealand had discharge ra...
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