نتایج جستجو برای: dating back at least four thousand years
تعداد نتایج: 4739960 فیلتر نتایج به سال:
Objective: In a non-experimental, case-control study the abdominal muscles activities during abdominal hollowing exercise in supine and four points kneeling position were investigated in males suffering from non-specific chronic low back pain compare with healthy volunteers. Materials & Methods : Twenty males suffering from non-specific chronic low back pain (mean age 39.9 years) and twenty ...
Ductile metal deformation processes aimed at production of wire of some sort are in use since over five thousand years, early ones dating back to the origins of copper and gold produc tion. Thin sheets, initially produced by hammering, were cut into thin strips suitable for ornamental pur poses. The introduction of die plate paved the way to round wire manufac turing, rather severe limitatio...
one of the oldest medical schools in the world is ayūrvedic school or indian traditional medicine whose history goes back to five thousand years ago. this school, which was formed and came to maturity in india, has affected on other medical schools in the world and iranian medical school has been affected by it. in remnant texts of one of the eastern middle iranian languages, khotanese, in east...
We sequenced 15 complete mitochondrial genomes and performed comprehensive molecular phylogenetic analyses to study the origin and phylogeny of the Hynobiidae, an ancient lineage of living salamanders. Our phylogenetic analyses show that the Hynobiidae is a clade with well resolved relationships, and our results contrast with a morphology-based phylogenetic hypothesis. These salamanders have lo...
The lack of Late Pleistocene human fossils from sub-Saharan Africa has limited paleontological testing of competing models of recent human evolution. We have dated a skull from Hofmeyr, South Africa, to 36.2 +/- 3.3 thousand years ago through a combination of optically stimulated luminescence and uranium-series dating methods. The skull is morphologically modern overall but displays some archai...
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