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This paper describes the difficulties the author had in obtaining twice a UK visa from the British Consulate in Paris. She was once refused an academic visitor visa despite an invitation to conduct research for two years at the Department of Archaeology, University of Cambridge. Then, the following year, she was denied again a short visit to attend a conference at the Department of Museum Studies, Leicester University.  相似文献   
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The possibility of lead isotope fractionation in ancient lead production is examined. Kinetic theory relating to isotopic fractionation in non-equilibrium evaporation is considered and the feasibility of the alteration of lead isotope abundance ratios in ore roasting and smelting is assessed. Previous experimental work is shown to have been inconclusive and conclusions are drawn on the need for further research to quantify the possible extent of fractionation in practice.  相似文献   
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The fossil record suggests that modern human morphology evolved in Africa between 150,000 and 50,000 years ago, when the sole inhabitants of Eurasia were the Neanderthals and other equally nonmodern people. However, the earliest modern or near-modern Africans were behaviorally (archaeologically) indistinguishable from their nonmodern, Eurasian contemporaries, and it was only around 50,000-40,000 years ago that a major behavioral difference developed. Archaeological indications of this difference include the oldest indisputable ornaments (or art broadly understood); the oldest evidence for routine use of bone, ivory, and shell to produce formal (standardized) artifacts; greatly accelerated variation in stone artifact assemblages through time and space; and hunting-gathering innovations that promoted significantly larger populations. As a complex, the novel traits imply fully modern cognitive and communicative abilities, or more succinctly, the fully modern capacity for Culture. The competitive advantage of this capacity is obvious, and preliminary dates suggest that it appeared in Africa about 50,000 years ago and then successively in western Asia, eastern Europe, and western Europe, in keeping with an African origin. Arguably, the development of modern behavior depended on a neural change broadly like those that accompanied yet earlier archaeologically detectable behavioral advances. This explanation is problematic, however, because the putative change was in brain organization, not size, and fossil skulls provide little or no secure evidence for brain structure. Other potential objections to a neural advance in Africa 50,000-40,000 years ago or to the wider Out-of-Africa hypothesis, include archaeological evidence (1) that some Neanderthals were actually capable of fully modern behavior and (2) that some Africans were behaviorally modern more than 90,000 years ago.  相似文献   
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As social constructions of reality, maps embody the values, truth-claims and power-structures of the cultures that make them. Using a variety of interpretive methodologies, geographers and cartographers have developed the thesis that, through selective 're-presentation', maps 'work' at a discursive, symbolic level. In focusing on the artifact itself, however, they have tended to forget that maps are made by someone. Indeed, as part of a wider institutional network, organized and reified by people in pursuit of certain goals, maps serve to create and sustain territories. In a colonial context, moreover, maps arrest and de-legitimize the territorialization of some cultural groups even as they enfranchise and legitimize that of others. Maps are, in this view, ideological weapons. In this paper I use a materialist hermeneutic to investigate the way in which maps helped to actualize the territorial dispossession of the original inhabitants of what is now British Columbia. Beginning with the charts of George Vancouver and Alexander MacKenzie, and ending with the Indian Reserve maps of the 1916 Royal Commission, I illustrate this thesis by tracing the cartographic encirclement of the Nuxalk and Ts'ilhqot'in First Nations. As an essential adjunct in the Euro-Canadian colonization of the region, the analysis has implications for our understanding of the social, political, and juridical function of maps within contemporary land claims discourse.  相似文献   
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