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We review evidence from human biology—paleopathological and isotopic paleodietary studies on ancient Maya skeletons—to assess the validity of ecological models of the Classic Maya collapse, in which elevated disease and deteriorating diet are commonly assumed. To be upheld, the health arguments of ecological models require that the Maya disease burden (1) was greater than that for many other societies and (2) increased over the span of occupation. The dietary argument requires (1) consistent change in diet from Preclassic and Early Classic Periods to the Terminal Classic and (2) increasing social divergence in diet. A correlation between diet and disease is necessary to link these arguments. Neither pathology nor isotopic data consistently support these criteria. Instead, it appears that local environmental and political factors created diversity in both disease burden and diet. In view of the human biological data, we are skeptical of ecological models as generalized explanations for the abandonment of Classic Maya sites in the southern lowlands. 相似文献
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This paper explores attempts to establish a network of firms and organizations to develop the multimedia industry at a regional level. The paper sets out its review in the context of the regional economy, and then details the nature of the networking process under investigation. An evaluation of networking in this context is provided, based on detailed empirical research. Lessons are drawn from the experiences of seeking economic modernization through organizational networks. 相似文献
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Gerhard Wolf 《Journal of Genocide Research》2015,17(2):153-175
The Wannsee Conference is still largely understood as the ‘echo’ of an earlier decision to annihilate European Jewry. This article questions this assumption on three grounds. First, it does not fully acknowledge that it did not call for a systematic and immediate mass murder of all Jews. Secondly, it mistakenly concludes that because the conference targeted only Jews, it also emerged from within the narrower confines of the regime's anti-Jewish policies. Thirdly, and as a consequence, this assumption represents a retrospective reading of the conference that straightens the ‘twists’ that even at this late point in time still characterized the ‘road to Auschwitz’. This article offers a different interpretation. Situating the Wannsee Conference in the broader context of Nazi Germanization policies, the article will show how Heydrich's actions at Wannsee can be better understood as a response to early failures in Germanizing annexed Poland and the settlement fantasies coming out of the SS apparatus after the invasion of the Soviet Union. While the Wannsee Conference undoubtedly was an attempt by the SS to consolidate its control over anti-Jewish policies, it was also a way for Heydrich to reclaim lost influence in the broader field of Nazi population policies by aligning the treatment of ‘enemy populations’ with the grander vision of a ‘German East’. This Nazi dystopia not only called for destroying Jewish existence in Europe, but demanded that even the way in which Jews were killed would serve the Nazi cause. For this reason, this article argues for understanding the minutes of the meeting literally. Having learned the lessons from previous failures, while at the same time under pressure to support the megalomaniacal settlement plans, Heydrich actually meant what he said when he dictated the protocol condemning Jews not to their immediate death but to annihilation through labour. 相似文献
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This paper analyses the relationship between knowledge production and urban locations in industrial design, a knowledge-intensive business service (KIBS). KIBS concentrate in urban locations. This is often explained by the co-location of client firms and market access in large cities. Recent research on knowledge production, however, reveals that knowledge productive networks are significant for both the competitiveness and location of KIBS. Thus, to understand the urban location of industrial design, it is important to analyse how knowledge production is organized within the industry. Industrial design is concentrated in urban locations, but most of its clients are located elsewhere. Hence, it seems that industrial design firms concentrate in urban locations mainly because their knowledge networks include specific types of formal and informal local social networks. 相似文献
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