نتایج جستجو برای: ancient history
تعداد نتایج: 383499 فیلتر نتایج به سال:
We review studies of genomic data obtained by sequencing hominin fossils with particular emphasis on the unique information that ancient DNA (aDNA) can provide about the demographic history of humans and our closest relatives. We concentrate on nuclear genomic sequences that have been published in the past few years. In many cases, particularly in the Arctic, the Americas, and Europe, aDNA has ...
Population mixture is an important process in biology. We present a suite of methods for learning about population mixtures, implemented in a software package called ADMIXTOOLS, that support formal tests for whether mixture occurred and make it possible to infer proportions and dates of mixture. We also describe the development of a new single nucleotide polymorphism (SNP) array consisting of 6...
the relation between economy and medicine had a long history since ancient times. supplying (providing) health care and the required drugs and medical equipments were the main concerns of the human communities even when they were at rather primitive stages of civilization. later, in developed civilizations, trade was added to the concepts of medical economy. in this study, various economic acti...
THE history of the development of the atomic theory is usually imagined to be the exclusive province of chemistry and physics, and there is a tendency to suppose that molecular biology is one of the most recent products of twentiethcentury science. For these reasons it is surprising to discover that the paths of the corpuscular world-view and theoretical physiology crossed more than two thousan...
The history of Medical ethics is as longer as the history of the medicine. In medical literature of all great civilizations such as Greek, Babylon, Egypt, Indian, Christian and Islamic, is full of ethical codes and oaths. Nevertheless the medical ethics as an academic filed appeared in 1960s. This article is a short review of medical ethics history in ancient, medieval and modern periods. In ...
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