نتایج جستجو برای: dating back at least four thousand years
تعداد نتایج: 4739960 فیلتر نتایج به سال:
To shed more light on the processes leading to crystallization of a Slavic identity, we investigated variability of complete mitochondrial genomes belonging to haplogroups H5 and H6 (63 mtDNA genomes) from the populations of Eastern and Western Slavs, including new samples of Poles, Ukrainians and Czechs presented here. Molecular dating implies formation of H5 approximately 11.5-16 thousand yea...
Mirak (Semnan, Iran) is a Paleolithic site located in a dry floodplain near the northern edge of the Iranian Central Desert. The pedo-sedimentary successions of Mirak 8 are deposited from late Pleistocene to Late Holocene,. The chronological framework was established using optically stimulated luminescence (OSL) dating. The oldest studied units dating back to ~50 ± 3.0 ka. Within this stratigra...
A study was conducted to determine the incidence cases of HIV/AIDS infection in Owerri West L.G.A of Imo State, Nigeria, between Apirl 2007 and September, 2009. Data was collected from the HIV/AIDS co-ordination and control unit, Owerri General Hospital Umuguma, Owerri West Local Government Area of Imo State, Nigeria. It was observed that a total number of seventeen thousand nine hundred and si...
OBJECTIVE Few data describe antiretroviral treatment (ART)-related adverse events when treatment is initiated at CD4(+) cell counts more than 350 cells/μl. We compared rates of laboratory-defined adverse events (LDAEs) according to CD4(+) cell count at ART initiation. DESIGN Analysis of on-going cohort study. METHODS ART-naive persons initiating ART from 2000 to 2010 were included. Chi-squa...
Human settlers transported chickens (Gallus gallus domesticus) to most East Polynesian archipelagos between AD 1000 and 1300; however, it has long been assumed that New Zealand was an exception. Despite the fact that chicken bones have been recovered from localities of early archaeological middens in New Zealand, their age and genetic relationships have never been critically assessed. Here, we ...
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