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This paper is a statistical and geological study of the results of analysis of flint from British and West European flint mines, carried out by emission and atomic absorption spectroscopy. Groups of flint specimens were studied from each geographically separate flint mining area. Flints were analysed for a group of easily measured trace elements shown by previous work to be generally present. The ratios between the trace elements form a consistent pattern for each flint mine and statistically valid differences of pattern can be recognized between different flint mines. A geological investigation shows that the measured trace elements may be derived from clay minerals and explains geographical and statistical variation in the composition of flint in terms of its mode of origin in the chalk. An advanced statistical technique allows individual flint specimens of unknown origin to be attributed by their composition to one or other of the identified flint sources. The archaeological implications of this study are discussed.  相似文献   
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A method is described for the identification of the origin of flint artefacts. The method is based on the variation in the trace element concentrations for different origins. The trace element concentrations were determined by non-destructive neutron activation analysis. The identification was obtained from a pattern recognition analysis.  相似文献   
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A failed effort at “reform from above” or a dramatic reassertion of “people power”? Almost thirty-five years on, studies of the Revolutions of 1989 continue to be framed by these two polarities. However, this historiographical focus has meant that scholars have often overlooked the actual content and character of protest itself. This article argues that one way of reinjecting agency and ideas back into our historical understanding of 1989 is through examining the chronopolitics of revolution: that is to say, by addressing how the control and interpretation of time became a political battlefield, a site of contention and negotiation, between Communist regimes, on the one hand, and political activists and society, on the other. Investigating events in the German Democratic Republic and Czechoslovakia, the article contains two central claims: first, that an interrogation of the concept of “chronopolitics” can provide a new angle by which to grasp the revolutionary character of “1989” and the democratic transformations that resulted and, second, by way of inversion, that a study of the temporal experiences across 1989 and the early 1990s can in turn shed light on the analytical value of “chronopolitics” more generally.  相似文献   
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Did “the old character, so intelligent, so crazy”, evoked by Marcel Proust through Chardin’s self-portraits, depict himself in the projective mask of the wise man, in one of his most famous paintings, thePhilosopher of the Louvre? As the master of the still life wanted to rise in the hierarchy of the Academic ranks, he probably tried, in this early work, to make up for “this lack of training” in “the humanities”, through the representation of a character in keeping with current tastes, of a modern philosopher. A Philosopher, A Chemist in his laboratory, A Glass-Blower, or A Philosopher busy reading: is the painting of the Louvre (1734) an emblem? Our hypothesis, that this painting represents a chemist philosopher, not a quack or an alchemist, is constructed by comparing the painting with the lampoon entitledThe Philosopher, circulated, according to Voltaire, in the 1730s.  相似文献   
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Summary.   In the context of territorial analyses in archaeology, the visual attributes of sites play a key role in the definition of location strategies. This paper studies the Neolithic evidence from the south-western Morbihan area in Brittany (France) from a visual point of view, integrating the previous Mesolithic and the later Bronze Age occupation of the region in order to understand the diachronic evolution of the visual settlement patterns. The role played by the sea seems to be significant throughout the entire occupation of the area, but differences in both intervisibility of sites and the extension of visual areas allow us to make particular observations regarding different cultural uses of the landscape through time.  相似文献   
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This article aims at presenting the first results of a transdisciplinary research programme in heritage sciences. Based on the growing use and on the potentialities of micro- and nano-characterization synchrotron-based methods to study ancient materials (archaeology, palaeontology, cultural heritage, past environments), this contribution will identify and test conceptual and methodological elements of convergence between physicochemical and historical sciences.  相似文献   
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Oil-rich Venezuela is being hit by the largest crisis in living memory. Now, more than 4.8 million Venezuelans have fled the country in search of food and safety. News about migration and humanitarian aid dominate. Yet, many Venezuelans stay and seek alternative strategies to cope with scarcity and insecurity. Ad hoc solutions mainly depend on alternative economies in the borderlands that do not always fit within frameworks of human rights and rule of law, but do provide relief and produce opportunities along with new inequalities that (un)willingly sustain the crisis. Amid collapsing state infrastructures, these transborder economies tie into the global trade of basic supplies, narcotics, drugs, natural resources and human trafficking that operate in the interface of the legal and the illegal. The complex humanitarian crisis in Venezuela is as much about poverty and scarcity as it is about wealth and abundance benefiting only a very few. An ‘anthropology of abundance’ allows us to grasp these underlying socio-economic dynamics that turn crisis management into crisis maintenance.  相似文献   
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