نتایج جستجو برای: southeast asia
تعداد نتایج: 71033 فیلتر نتایج به سال:
In this study, stepwise discriminant function analysis and Mahalanobis' generalized distance are applied to 27 landmark measurements recorded in 2,595 male crania representing 56 near modern cranial series from Island Southeast Asia (ISEA), Mainland Southeast Asia (SEA), East Asia, Australia. and the Pacific. This new analysis examines models (e.g., agricultural colonization and continuity mode...
Analyses of an Asian-specific Y-chromosome lineage (O2a1-M95)--the dominant paternal lineage in Austro-Asiatic (AA) speaking populations, who are found on both sides of the Bay of Bengal--led to two competing hypothesis of this group's geographic origin and migratory routes. One hypothesis posits the origin of the AA speakers in India and an eastward dispersal to Southeast Asia, while the other...
The geographic origin and time of dispersal of Austroasiatic (AA) speakers, presently settled in south and southeast Asia, remains disputed. Two rival hypotheses, both assuming a demic component to the language dispersal, have been proposed. The first of these places the origin of Austroasiatic speakers in southeast Asia with a later dispersal to south Asia during the Neolithic, whereas the sec...
The global migration patterns of influenza viruses have profound implications for the evolutionary and epidemiological dynamics of the disease. We developed a novel approach to reconstruct the genetic history of human influenza A (H3N2) collected worldwide over 1998 to 2009 and used it to infer the global network of influenza transmission. Consistent with previous models, we find that China and...
L and fires in Southeast Asia have increased dramatically over the past 30 years due to changes in land use and population density, draining of swamp forests, etc.. In 2015, Indonesian fires alone are estimated to have emitted as much carbon dioxide as Indias annual fossil fuel usage, and to have caused around 12,000 premature deaths. The massive negative environmental and health impacts have p...
Emerging pathogens that originate from invasive species have caused numerous significant epidemics. Some bacteria of genus Bartonella are rodent-borne pathogens that can cause disease in humans and animals alike. We analyzed gltA sequences of 191 strains of rat-associated bartonellae from 29 rodent species from 17 countries to test the hypotheses that this bacterial complex evolved and diversif...
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