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Size variation of Sus remains within and between sites is examined for the Neolithic sites in the Wei River valley in China. The coefficient of variation [V] for pig measurements at the sites of Wayaogou, Quanhucun and Jiangzhai was calculated, and we observed patterns that show evidence of two populations of different‐size pigs, supporting the likelihood that both wild and domestic pigs were present. Also, size reduction of pigs can be traced within the Neolithic‐early Bronze Age archaeo‐faunal sequence of the Wei River valley. This size reduction was accompanied by an increase of coefficients of variation through the Neolithic. Both of these trends were probably the consequences of pig domestication, and the morphometric differences probably provide evidence for the different stages of pig domestication in this region. Copyright © 2013 John Wiley & Sons, Ltd.  相似文献   
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Abstract

In recent years, popular protest in China has emerged from a state of near-invisibility. Drawing on a diachronic analysis of news media coverage, this paper traces how a number of major protest events gradually entered the Chinese media’s spotlight and came to be portrayed in an increasingly protester-sympathising fashion over the course of the Hu-Wen administration. It argues that these changes were triggered by structural transformations of the Chinese public sphere, but underlines that deliberate policy choices by the political leadership served as a crucial agent of change. Facing proliferating unrest and an increasingly unimpeded flow of information, the central authorities have gradually shifted propaganda policy from a suppressive to a more proactive approach. They have thereby created critical opportunities for Internet users and investigative journalists to push the envelope further towards protester-sympathising accounts. The development is significant as there are good reasons to surmise that increased media coverage has exacerbated the dynamics of popular contention. Theoretically, it deserves to be noted that non-inevitable choices by an authoritarian leadership have led to an outcome in which media coverage of citizens who challenge the state on the streets has become substantially more frequent and positive than before.  相似文献   
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We propose a strategy for evaluating the contribution of human predation to the depletion of endemic birds on Pacific islands. Humans reduced avian populations indirectly through habitat alteration, for which there is much archaeological evidence. However, direct evidence of human predation and its role in avian extinctions has seldom been critically evaluated. Because many archaeological sites containing bird bones occur in nesting locales such as coastal dunes and rockshelters, distinguishing naturally from culturally deposited material is crucial. We address this problem by analyzing bird bones from nine archaeological sites on Moloka'i, Hawaiian Islands. Species composition, weathering, non-human predation, burning, element frequencies, and modification are considered. Similarity between archaeological and replicated breakage suggests human consumption of some extirpated bird species. We couple these results with converging, independent lines of evidence to identify human predation in avian assemblages from Moloka'i. We stress that determining the chronology of avian extinctions is best accomplished by directly dating bird bones with butchering marks and other evidence of human consumption.  相似文献   
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Total pore volume and pore size distribution are indicators of the degree of post‐mortem modification of bone. Direct measurements of pore size distribution in archaeological bones using mercury intrusion porosimetry (HgIP) and back scattered scanning electron microscopy (BSE‐SEM) reveal a common pattern in the changes seen in degraded bone as compared to modern samples. The estimates of pore size distribution from HgIP and direct measurement from the BSE‐SEM images show remarkable correspondence. The coupling of these two independent approaches has allowed the diagenetic porosity changes in human archaeological bone in the >0.01 µm range to be directly imaged, and their relationship to pre‐existing physiological pores to be explored. The increase in porosity in the archaeological bones is restricted to two discrete pore ranges. The smaller of these two ranges (0.007–0.1 µm) lies in the range of the collagen fibril (0.1 µm diameter) and is presumably formed by the loss of collagen, whereas the larger pore size distribution is evidence of direct microbial alteration of the bone. HgIP has great potential for the characterization of microbial and chemical alteration of bone. Copyright © 2002 John Wiley & Sons, Ltd.  相似文献   
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Visitor impact is an inherent and dynamic component of cultural heritage management whenever cultural sites are accessed by people. Mungo National Park has become the focus of some 35,000 visitors per year. The impacts these visitors have on the archaeological record are investigated in this study. A series of fourteen mock sites, composed of stone artefact and bone scatters, were created in the park and the impacts that visitors had on these sites were monitored over a five month period. The results indicate that high visitation areas are subject to a variety of impacts, and site components are frequently moved, turned over, clustered and pilfered. Recognition of these impacts can lead to improvements in the management and conservation of archaeological sites.  相似文献   
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