The proportion of radioactive carbon-14 atoms to nonradioactive carbon-12 atoms can tell the analyst how long it has been since the tissue being analyzed belonged to a living creature.
The remaining forty-nine Danaides had their grooms chosen by a common mythic competition: a foot-race was held and the order in which the potential Argive grooms finished decided their brides (compare the myth of Atalanta).
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Carbon is one of the essential elements in all living matter, and a set proportion of the carbon incorporated in living tissue is radioactive and decays at a known rate.
Oculocutaneous albinism - caused by mutations in the SLC45A2 gene
The "kurganized" globular amphora culture in Europe is proposed as a "secondary Urheimat", separating into the bell beaker and corded ware cultures around 2300 B.C. and ultimately resulting in the European branches of Italic, Celtic and Germanic languages, and other, partly extinct, language groups of the Balkans and central Europe, possibly including the proto-Mycenaean invasion of Greece.
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As radioactive elements go, carbon-14 decays relatively rapidly, and the technique ceases to give reliable indications of age for anything much older than 40,000 or 50,000 years.
02/06/2014 · The proportion of the U.S
Finally, there is another symbolic system, in which communicating means expressing the intimate thoughts of people without any particular reference to events or needs. Arts, religion, and ethics, for example, allow us to "transcend" both the spheres of biology and social communications. There may be some expressions referring to biological and social life but, in those spheres, we are completely independent and able to transcend any biological and social needs. This is why this kind of symbolism is known as "spiritual symbolism" (see below, IV.2). Deacon (1997) was right when he defined humankind as a "symbolic species." Being at the very core of culture, like two faces of the same medal, projectuality and symbolism should be considered as one, single entity, expressing human abstract intelligence and psychism. Moreover, because they are creative expressions, they may develop and improve their results, spreading through society by extraparental transmission. By accepting as true this definition of culture, we might as well point out that culture is peculiar to human beings. Therefore, it is definitely incorrect to attribute it to animals, indicating it as any behavior acquired either by imitation or by casual learning, and never through biological inheritance. Nevertheless, this position is currently shared by many authors, including Cavalli Sforza and Feldman (1981).
Human Origins | Ancient Origins
The Process of Indo-Europeanization was a cultural, not a physical transformation. It must be understood as a military victory in terms of imposing a new administrative system, language and religion upon the indigenous groups.