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Jacques Connan Robert Carter Harriet Crawford Mark Tobey Armelle Charrié-Duhaut Dan Jarvie Pierre Albrecht Kirsty Norman 《Arabian Archaeology and Epigraphy》2005,16(1):21-66
This paper presents a geochemical analysis of fragments of bituminous amalgam from H3, As‐Sabiyah (Kuwait), and RJ‐2, Ra's al‐Jinz (Oman). The fragments bear barnacles on one side and reed impressions on the other, and are thought to have been part of the coating of reed‐bundle boats. The material from H3 dates to between 5300–4900 BC, while that of RJ‐2 dates to 2500–2100 BC. Samples from both sites were geochemically compared to archaeological and ethnographic material from Kosak Shamali (northern Syria, c.5000–4400 BC), RH‐5 (Oman, 4400–3500 BC) and Baghdad (central Iraq, 1900 AD). The composition of the bituminous amalgams was studied in detail. Rock‐Eval Pyrolysis gave a measure of Total Organic Carbon in the samples, and allowed an initial comparison of the data sets using various parameters. Examination of the proportions of soluble and insoluble organic matter allowed an assessment of the quantity of vegetal matter added to the bitumen to make the bituminous amalgam. The composition of the Ra's al‐Jinz material was studied using X‐Ray Diffraction analysis and thin‐section petrography, in order to assess the proportions of various minerals in the bituminous amalgams. It was concluded that the recipe for the bituminous mixture used to coat reed‐bundle and wooden boats did not differ significantly from that commonly used to make ‘mortar’ for architectural purposes in Mesopotamia. Traces of animal fats or fish oils were not found in the analysed Ra's al‐Jinz material, in contrast to previous hypotheses regarding the composition of the mixture. Comparison of the gross composition of extractable organic matter (the constituents of pure bitumen, soluble in chloroform or dichloromethane) showed the progressive effects of weathering on the samples. The isotopic composition of the bituminous material from H3 and the other sites was then compared to that of bitumen seeps and crude oils from Mesopotamia, Iran and Oman. The most significant result is that the material from As‐Sabiyah originated in Kuwait, at a surface seep at Burgan, while the material from Ra's al‐Jinz had a source in northern Mesopotamia. 相似文献
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The archaeological landscape on Rapa Nui (Easter Island) contains a palimpsest of surface archaeological features reflecting a long history of settlement and land use. The popular narrative of societal collapse prior to European contact relies on chronometric data from the late pre-European contact period and also cites major settlement shifts as evidence for societal collapse and socio-political reorganization. This paper explores the archaeological evidence for proposed changes in settlement by assessing the spatial and temporal distribution of radiocarbon determinations collected from archaeological and landscape contexts. A corpus of over 300 determinations is placed into an island-wide GIS database and analysed. The results of this study suggest that Rapa Nui settlement and land use exhibit continuity rather than punctuated, detrimental change during the late pre-European contact period. 相似文献
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Miriam Mara 《Irish Studies Review》2010,18(4):427-438
By focusing on the city of Dublin as both setting and character, Once, written and directed by Dublin native John Carney, portrays urban Ireland in the global context. Using a series of replacements – replacing population loss with in-migration, and replacing parochial ideals with multicultural ones – the film re-places Dublin, both representing the city it has become and providing space for continuing growth and change. For Dublin, as elsewhere, change enters as global flows of information and people become part of the city. Rather than conforming to the traditional global power of American culture, Bord Scannán na hÉireann (Irish Film Board) is striking its own global poses, producing and distributing films that construct an urban Irishness for international audiences. In my article, I examine how this award-winning Irish film constructs Irish urban identity in the face of globalism's cultural flattening. 相似文献
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Richard Albrecht 《Berichte zur Wissenschaftsgeschichte》1987,10(2):105-112
“…that you must have to stop working here.” How Sergej Chakhotin was forced to leave the Kaiser Wilhelm Institute at Heidelberg in 1933. - In this essay the author presents some basically unpublished material according to the dismissal of the Russian natural scientist Sergej Chakhotin, a former assistant of I. P. Pavlov. Chakhotin, who got a sholarship granted by an American institution, worked since 1930 at the newly established Kaiser Wilhelm Institute at Heidelberg, as a scientist. Moreover, he practically engaged himself in the political struggle of the German Social Democrats against Nazism and, in 1932, created the at that time well-known symbol of the Three Arrows. But he was - being a Soviet citizen - a guest in Germany. His political activity was the very reason for his discharge in April, 1933, and even the engagement of some prominent academic collegues was not able to stop the administration measure. So Chakhotin became a political refugee like some of his German collegues. 相似文献
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SPATIAL DISCONTINUITY FOR THE IMPACT ASSESSMENT OF THE EU REGIONAL POLICY: THE CASE OF ITALIAN OBJECTIVE 1 REGIONS* 下载免费PDF全文
Mara Giua 《Journal of regional science》2017,57(1):109-131
The economic impact of the Regional Policy of the European Union is still controversial. This paper exploits administrative boundaries as spatial discontinuity to estimate the causal effect of this policy on the Italian Objective 1 regions’ employment. The analysis, developed both in a border strategy framework (municipalities contiguous to the policy‐change boundary) and with more traditional RDD models balanced by spatial forcing variables (centroids’ distance and coordinates), shows that the EU Regional Policy produced a positive impact on employment levels, without any displacement of economic activities away from nontreated regions and a concentration of the impact in key economic sectors. 相似文献