نتایج جستجو برای: eastern africa
تعداد نتایج: 192736 فیلتر نتایج به سال:
Zimbabwe is the only country in southern Africa with no reported African swine fever (ASF) outbreaks during 1993-2014. However, the 2015 discovery of genotype II ASF virus in Zimbabwe indicates the reemergence of ASF in this country and suggests that this viral genotype may be spreading through eastern and southern Africa.
We describe a new species of giant spitting cobra, Naja ashei sp. nov., from eastern and north-eastern Africa. The species was previously regarded as a colour phase of the black-necked spitting cobra, N. nigricollis. However, mtDNA sequence data show it to be more closely related to N. mossambica than N. nigricollis. The new species is diagnosable from all other African spitting cobras by the p...
The International Monetary Fund (IMF) and the World Bank (WB) publish annual reports on the world economic outlook. This study compared the Gross Domestic Product (GDP) of different countries by these 2 institutions, before and after the Covid-19 pandemic. The countries were selected from the 6 regions of Africa, the Americas, the Eastern Mediterranean, Europe, Southeast Asia, and the Western O...
! An Interdisciplinary Approach to Agent-Based Modeling of Conflict in Eastern Africa By Ian Skoggard and William G. Kennedy Introduction Over the past four years, a team of computational social scientists at the Center for Social Complexity at George Mason University (GMU) in collaboration with anthropologists from the Human Relations Area Files (HRAF) at Yale University have been developing a...
This paper investigates the role that air–sea interaction processes may play in interannual variability of south-eastern African summer rainfall. The principal spatial modes of south-eastern African summer rainfall are first identified using principal component analysis. Four modes are retained. The most important mode of variability is found to represent rainfall variability over most of the d...
Evaluation of differences between human immunodeficiency virus (HIV)-infected men and women in antiretroviral therapy (ART) enrollment characteristics and outcomes might identify opportunities to improve ART program patient outcomes and prevention impact. During September 2008-February 2012, retrospective cohort studies to estimate attrition of enrollees (i.e., from death, stopping ART, or loss...
Food is fundamental to human survival, in more than just one way. First, food is basic for averting hunger and maintaining health for every human being. Secondly, food satisfies our palate and makes us happy and emotionally and socially content. Third, food constitutes a form of cultural expression. The food we eat should be safe, palatable, affordable, and of the quality that can maintain ment...
Gigantism and dwarfism evolve in vertebrates restricted to islands. We describe four new species in the Rhinolophus hildebrandtii species-complex of horseshoe bats, whose evolution has entailed adaptive shifts in body size. We postulate that vicissitudes of palaeoenvironments resulted in gigantism and dwarfism in habitat islands fragmented across eastern and southern Africa. Mitochondrial and n...
Observations and simulations link anthropogenic greenhouse and aerosol emissions with rapidly increasing Indian Ocean sea surface temperatures (SSTs). Over the past 60 years, the Indian Ocean warmed two to three times faster than the central tropical Pacific, extending the tropical warm pool to the west by *40 longitude ([4,000 km). This propensity toward rapid warming in the Indian Ocean has b...
Migration and Interaction in a Contact Zone: mtDNA Variation among Bantu-Speakers in Southern Africa
Bantu speech communities expanded over large parts of sub-Saharan Africa within the last 4000-5000 years, reaching different parts of southern Africa 1200-2000 years ago. The Bantu languages subdivide in several major branches, with languages belonging to the Eastern and Western Bantu branches spreading over large parts of Central, Eastern, and Southern Africa. There is still debate whether thi...
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