منابع مشابه
Metasignaling and Language Origins
Over the past two decades, comparative linguistic anthropological research has disclosed the significance of metadiscourse and metasignaling for the establishment, maintenance, and transformation of social relations. One type of metasignal-signal relationship has, because of its role in producing sociability, come to seem especially interesting with regard to the evolutionary origins of human l...
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The idea that language evolved from manual gestures rather than primate calls dates back at least to the 18th century, and was revived in modern form by the anthropologist, Gordon W. Hewes, in 1973. The main sources of current evidence are: (1) Signed languages invented by deaf communities share with speech the essential characteristics of language, including such properties as reference, gener...
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Mitochondrial and nuclear genetic variation in humans is much lower than in extant apes (Gagneux 1999; Fischer et al. 2006). The effective population size of extant humans is slightly >10,000. In contrast, the effective population size of the common ancestor of chimpanzees and humans is estimated at four to seven times larger (Wall, 2003). Comparable estimates for the effective population size ...
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The search for viable eBusiness models continues. But important information is being overlooked. Discussions of open source software all too often focus on the limited context of Microsoft appearing to feel threatened by what it portrays as unbusinesslike competition from Linux and OpenOffice.org; whereas that debate is merely one small facet of the whole. Moreover, in addition to software, a g...
متن کاملRoger Bacon and the origins of Perspectiva in the Middle Ages
The bibliographic details will convince any well-educated historian that this book should be available in all good libraries. So indeed it should. The advent of microfilm has helped the editor to make full use of many more manuscripts than his predecessors, with consequent benefit to the authority of the resulting text. Roger Bacon's treatise, which David Lindberg, following a "guess" by Stewar...
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ژورنال
عنوان ژورنال: American Anthropologist
سال: 1976
ISSN: 0002-7294,1548-1433
DOI: 10.1525/aa.1976.78.3.02a00770