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21.
Developing theories of vernacular architecture in archaeology has been hindered by the lack of a defined methodology for studying ancient buildings, and the absence of information on the mechanical properties of construction materials uncommon in today's building practices. In this paper we use Finite Element Methods and recent research on the structural properties of whalebone to analyze the architecture of Thule semi-subterranean houses. These unique dwellings were constructed and used by the ancestors of Inuit/Eskimo peoples in the Canadian Arctic and Greenland. Little is known about how they were designed and constructed because few have ever been discovered intact. The substantial weight of whalebone roof frames suggests that some designs would have performed better than others. Poorly planned houses, or the use of whalebone in a symbolic rather than strictly utilitarian capacity, may have resulted in higher maintenance costs, thereby shortening their anticipated use life. In extreme cases, errors in design, or the failure of materials may have caused dwellings to collapse, resulting in injuries or possibly even death. We demonstrate through this case study that Finite Element Methods constitutes an effective methodology for studying ancient buildings, with the proviso that more research is needed on the mechanical properties of building materials used in the past.  相似文献   
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Three circumscribed depressed fractures were found on the skull of an adolescent boy recovered from a primary intramural burial at the Chalcolithic site of Shiqmim, northern Negev, Israel dated to (∼4500–3200 BCE). The fractures were located on the left side and back of the skull. They are circular in outline and have sharp margins containing numerous small bone fragments. These indicate that the skull was fractured when the bone was still fresh and were the probable cause of death. The location of the fractured areas is typical of blows inflicted by a right‐handed individual in face‐to‐face conflict. The size and shape of the fractures, suggests that they were inflicted by a blunt instrument, possibly a mace head. The absence of any signs of healing or infection indicates that all fractures occurred within a short space of time and resulted in death. Neither biological characteristics nor burial pattern show any unique features that distinguish this individual from others recovered at this site. Copyright © 2003 John Wiley & Sons, Ltd.  相似文献   
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A distinctive sand layer enclosed within Holocene peat is described from Basta Voe, Isle of Yell, Shetland Isles. The sand layer, that can be traced considerable distances inland and up to a maximum altitude of c. + 9 m OD, is here interpreted as having been deposited by a former tsunami. AMS dating appears to indicate that the tsunami occurred between 1300 – 1570 cal years BP. At present, the tsunami has no known source mechanism although the most likely mechanism is thought to have been an offshore slump or slide. The available information would presently seem to indicate that this tsunami was restricted to the eastern coastline of Shetland. The relatively young age of this inferred tsunami is of considerable importance to planners and engineers concerned with estimating coastal flood frequency and magnitude.  相似文献   
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Journal of Archaeological Research - The Late Bronze Age (1700–900 BC) represents an extremely dynamic period for Mediterranean Europe. Here, we provide a comparative survey of the...  相似文献   
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A new species of very large tree kangaroo, Bohra wilkinsonorum, is described from a maxillary fragment from the Pliocene Chinchilla Sands of southeastern Queensland. Allocation to Bohra, which has previously been known from postcranial material only, is suggested on the basisof its similar size and stage of evolution to Bohra paulae. Both species of Bohra are plesiomorphic with respect to species of Dendrolagus, and are much larger than any known species of Dendrolagus. This new taxon from Chinchilla has expanded the tree kangaroo record from the Pliocene of southeastern Australia, supporting the hypothesis that the group originated in the late Miocene of ‘mainland’ Australia, finding refuge in north-eastern Queensland and New Guinea as climate became drier in the Quaternary. Fossil tree kangaroos are unknown from the Pliocene of Papua New Guinea where most living species now occur.  相似文献   
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Evolutionary anthropology has focused on the origins of war, or rather ethnocentricity, because it epitomizes the problem of group selection, and because war may itself have been the main agent of group selection. The neo-Darwinian synthesis in biology has explained how ethnocentricity might evolve by group selection, and the distinction between evoked culture and adopted culture, suggested by the emerging synthesis in evolutionary psychology, has explained how it might be transmitted. Ethnocentric mechanisms could have evolved by genetic selection in ancestral hominids, or through the interaction of genetic and cultural selection in modern humans, or both. The existence of similar behaviors in chimpanzees and the parallel development of early human societies around the globe are arguments for such inherited mechanisms. There may have been some adaptive breakthroughs in purely cultural evolution, but this process does not seem likely to produce long-term Darwinian adaptations because of the prolificity of cultural traits. Warfare may once have been a major agent of group selection, but the rates of extinction among human groups are so slow as to render this improbable since the rise of state-level societies, whose warfare tends to become a cyclical balance-of-power situation. Perhaps the most serious implication of current evolutionary thought is that the individualistic model of culture common in the social sciences and humanities is outmoded, and should be replaced by a new model that recognizes the organismic nature of human societies.  相似文献   
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