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P. Valério A. M. M. Soares M. F. Araújo R. J. C. Silva L. Baptista 《Archaeometry》2016,58(6):1003-1023
In the Iberian Peninsula, the copper metallurgy from the Chalcolithic to the Middle Bronze Age (MBA) was mostly characterized by low arsenic contents. A collection of 53 MBA artefacts from southern Portugal was analysed by micro‐EDXRF, optical microscopy, SEM–EDS and Vickers to investigate the metal composition and manufacture. No technological distinction was found between artefacts from domestic and funerary contexts, which were radiocarbon‐dated to 2000–1500 cal bc . The arsenic contents of almost 100 MBA artefacts from this region, including the above‐mentioned set, have a Gaussian distribution with a high average (3.9 wt% As). Possible explanations are discussed for this distinctive metallurgy at the south‐western end of the Iberian Peninsula. 相似文献
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Leah Sarson Val Muzik Brandon Ray Glenn Gambrell Leehi Yona Robert Comeau 《The American review of Canadian studies》2019,49(1):105-122
This article draws on the perspectives of students and organizers involved in recent iterations of the Model Arctic Council (MAC), an experiential learning simulation designed to expand students’ knowledge and understanding of the Arctic and its governance. While much of the discourse related to simulations such as the MAC emphasizes its pedagogical and networking benefits, this article leverages participant-based ethnography to argue that the MAC also affects multi-track diplomatic outcomes in addition to serving as a site for diplomatic engagement. Applying an interpretive approach driven by the onset of practice-tracing in international relations, we demonstrate that the MAC both produces and constitutes diplomacy. Such a reimagination elevates the diplomacy of non-state actors and exposes false binaries between state diplomacy and non-state diplomacy. 相似文献
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Valérie Tesnière Alina Cantau 《Revue de synthèse / Centre international de synthèse》2014,135(2-3):203-219
French medical journals take the lead among the 1 385 titles of the statistical survey (15.4%). Efficient tool in communication, with an important publishing market, linked to the rise of medicine in the 19th century, prosperity of medical journals do not only mean rise of specialties. Monthly periodicals dominate quickly the publishing market which is also characterized by complex links between generalist and highly specialized medicine, public health and professional training. 相似文献
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Emilie-Pauline Gallié Anna Glaser Valérie Mérindol Thierry Weil 《European Planning Studies》2013,21(10):1653-1675
This article explores the diversity of 66 French competitiveness clusters, which were all accredited in 2005 according to the same specifications, by characterizing the initial context in which they emerged and taking a close look at the link between this initial context and their current performance. Since French competitiveness cluster policy is based on state co-funding of R&D projects, we establish a typology based on a multiple component analysis and a hierarchical ascending classification of the R&D potential of the cluster's territory, the respective R&D efforts of companies and academic laboratories, the kinds of actors setting up the cluster and their pre-existing relationships. We then measure the differences among the five classes relating to their clusters' capacity to obtain state funding for their projects. Our results show that initial context can partially explain competitiveness clusters' performance. Competitiveness clusters in territories possessing significant R&D resources, and involving large companies capable of organizing projects, are the most efficient in obtaining state funding. In contrast, competitiveness clusters without prior cooperation experience perform poorly. 相似文献
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Val Attenbrow Tessa Corkill Ross Pogson Lin Sutherland Peter Grave 《Journal of Field Archaeology》2017,42(3):173-186
Ground-edged artifacts were an important part of the Australian Aboriginal toolkit. They had practical day-to-day uses, but some had symbolic and social values that led to their movement across great distances. Australian provenance studies document long-distance Aboriginal exchange systems extending over hundreds of kilometers. The size and complexity of exchange systems and social networks were contingent upon resources and the productivity of a region's environment. Along the fertile, well-watered lands east of the Great Dividing Range, movement of objects may have been geographically more circumscribed than in drier areas to the west. One hundred and twenty-one mafic, ground-edged artifacts from the New South Wales (NSW) Central Coast and 368 geological specimens from potential sources were non-destructively analyzed by portable X-Ray fluorescence spectrometry. Results indicate the existence of a well-used basalt source within the region at Peats Ridge-Popran Creek as well as multiple local and non-local sources up to 430?km from Mangrove Mountain on the NSW Central Coast. 相似文献
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Valérie Gorin 《European Review of History》2015,22(6):940-962
Despite the growing interest in the use of child images in humanitarian contexts in the last few years, there has been no transverse study of the iconography of famines in contemporary times. On the contrary, this iconography has been analysed in a scattered way, in disciplinary boundaries that prevent a more global understanding of the birth and use of these images. By comparing the approaches of the history of humanitarianism and childhood, as well as of social photography and media analysis, the purpose of this article is to show that visuals of starving children eventually find their roots at the end of the nineteenth century, at a time when charitable organisations are using photography as a tool to mobilise civil society and governments as well as to internationalise the humanitarian response. This analysis of Western visual strategies and media mobilisations throughout the twentieth century helps to put into perspective the so-called rupture between a first and a second age of humanitarianism. It shows first how young generations have become a privileged form of representation since the nineteenth century, using an aesthetic universe that is morally compelling; then, later, how the depoliticisation of the victim’s figure engages a political message. 相似文献
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A Compositional and Microstructural Study of Eighth‐Century BC Bronzes from Moita Da Ladra (Tagus Estuary): How Did the Spread of the Phoenician Metallurgy Take Place in Western Iberia?
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P. Valério A. M. M. Soares M. Monteiro A. Pereira M. F. Araújo R. J. C. Silva 《Archaeometry》2016,58(4):593-609
Metals from a votive deposit at Moita da Ladra (Tagus Estuary) dating to the eighth century bc were studied by micro‐EDXRF, optical microscopy and Vickers testing to investigate the adoption of Phoenician innovations by indigenous communities. Artefacts are made of bronze alloys with suitable tin contents (11.6 ± 2.3 wt%) and very low iron impurities (<0.05 wt%), and were often manufactured using the long post‐casting sequence. Comparisons with indigenous and Phoenician metallurgies from western Iberia revealed a conservative technology suggesting that the spread of Phoenician innovations was very slow. In this region, the adoption of a diversified copper‐based metallurgy and reduction furnaces only seems to occur during the Post‐Orientalizing Period, c. sixth to fourth centuries bc . 相似文献
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