نتایج جستجو برای: africa

تعداد نتایج: 111550  

2012
Julien Cappelle Renata Servan de Almeida Bouba Fofana Martin Dakouo Gilles Balança Patricia Gil Emmanuel Albina Nicolas Gaidet

BACKGROUND Avian influenza viruses (AIV) have been detected in wild birds in West Africa during the northern winter, but no information is available on a potential year-round circulation of AIV in West Africa. Such year-round circulation would allow reassortment opportunities between strains circulating in Afro-tropical birds and strains imported by migratory birds wintering in West Africa. O...

2012
Anders Hjern Ulf Söderström Jan Åman

OBJECTIVE To investigate the prevalence of type 1 diabetes in children with an origin in Sub-Saharan Africa in Sweden. RESEARCH DESIGN AND METHODS Nationwide register study based on retrieved prescriptions of insulin during 2009 in children aged 0-18 years. The study population consisted of 35,756 children in families with an origin in Sub-Saharan Africa and 1,666,051 children with native Swe...

2012
Fred Were

Dengue outbreaks and epidemics have been reported in all regions of Africa, and it is believed that all four dengue virus serotypes are in circulation. Available data suggest that dengue is endemic to 34 African countries and that Aedes aegypti mosquitoes--the primary vector for dengue transmission--are known to be present in all but five countries. Whether populations in Africa are susceptible...

2016
Alexander Beresford

This article will argue that South Africa‟s approach to conflict mediation and peace building is informed by the ANC‟s experience of the transition to democracy in South Africa and is widely misinterpreted. This was particularly evident in the Libyan crisis, where South Africa was widely accused of exhibiting a morally duplicitous and ideologically rudderless foreign policy because of the manne...

Journal: :The Lancet. Infectious diseases 2002
Valsa Madhava Christine Burgess Ernest Drucker

Hepatitis C virus (HCV) is a major cause of chronic liver disease in the world. The WHO estimates that 3% (170 million) of the world's population are chronically infected with HCV. Sub-Saharan Africa is of great interest because it is reported to have the highest HCV prevalence rate (5.3%), and a concurrent HIV epidemic. In our review of the published literature we found consistent evidence of ...

2013
Mercy Jelagat Karoney Abraham Mogisi Siika

Hepatitis C virus (HCV) is a viral pandemic and a leading cause of chronic liver disease. This review highlights the epidemiology and management of Hepatitis C in Africa. We searched for articles on medline using the terms, "Hepatitis C", "Prevalence", "Epidemiology", "Africa" and "Treatment". The bibliographies of the articles found were used to find other references. We included articles publ...

ژورنال: علمی شیلات ایران 2014
آزور, ادریس, زارع, پرویز, نادری, مجتبی, پیتاسی, دیانا ,

The new record of a puffer fish “Takifugu oblongus Bloch, 1786” (Tetraodontiformes, Tetraodontidae) is recorded for the first time the muddy shores of the inter-tidal zone of Bandar-e-Abbas city, in the northern Persian Gulf, Iran in March 2011. The morphological features of Takifugu oblongus are described. This species has previously been recorded from Indo-West Pacific, South Africa to Indone...

Ionospheric slab thickness is defined as the ratio of TEC to maximum electron density of the F-region (NmF2), proportional to the square of the F2-layer critical frequency (foF2). It is an important parameter in that it is linearly correlated with scale height of the ionosphere, which is related to electron density profile. It also reflects variation of the neutral temperature. Therefore, ionos...

Journal: :Molecular biology and evolution 2012
Pedro Soares Farida Alshamali Joana B Pereira Verónica Fernandes Nuno M Silva Carla Afonso Marta D Costa Eliska Musilová Vincent Macaulay Martin B Richards Viktor Cerny Luísa Pereira

Although fossil remains show that anatomically modern humans dispersed out of Africa into the Near East ∼100 to 130 ka, genetic evidence from extant populations has suggested that non-Africans descend primarily from a single successful later migration. Within the human mitochondrial DNA (mtDNA) tree, haplogroup L3 encompasses not only many sub-Saharan Africans but also all ancient non-African l...

2005
L. Marais

Constitutionally, apartheid divided South Africa into “white” and “black” South Africa. White South Africa consisted mainly of the urban areas, while black South Africa was mainly rural. Black South Africa was largely comprised of the homeland areas. However, urban areas have subsequently developed in most of the former homelands. At the same time, a number of dormitory towns were developed, ei...

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