全文获取类型
收费全文 | 350篇 |
免费 | 17篇 |
专业分类
367篇 |
出版年
2025年 | 2篇 |
2024年 | 14篇 |
2023年 | 10篇 |
2022年 | 13篇 |
2021年 | 7篇 |
2020年 | 13篇 |
2019年 | 11篇 |
2018年 | 13篇 |
2017年 | 10篇 |
2016年 | 12篇 |
2015年 | 9篇 |
2014年 | 24篇 |
2013年 | 87篇 |
2012年 | 13篇 |
2011年 | 9篇 |
2010年 | 11篇 |
2009年 | 16篇 |
2008年 | 11篇 |
2007年 | 13篇 |
2006年 | 7篇 |
2005年 | 9篇 |
2004年 | 16篇 |
2003年 | 7篇 |
2002年 | 10篇 |
2001年 | 5篇 |
2000年 | 5篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1994年 | 2篇 |
1993年 | 2篇 |
排序方式: 共有367条查询结果,搜索用时 15 毫秒
91.
Marco Di Cataldo 《Journal of regional science》2017,57(5):814-839
Brexit means that regions of the United Kingdom will lose access to the EU Cohesion Policy. Have EU funds been effective, and what might be the consequences of an interruption of EU financial support? This paper studies the impact of “Objective 1” funding—the highest form of EU aid—in Cornwall and South Yorkshire, two of the U.K.’s most subsidized regions. Counterfactual methodologies assessing their labor market and economic performance provide evidence of a positive effect of EU Objective 1 funds. When in 2006 South Yorkshire lost Objective 1 eligibility, this massively reduced its share of EU funds and the region was unable to sustain the gains obtained in previous years. This suggests that while Structural Funds may be effectively improving socio‐economic conditions of poorer regions, the performance of subsidized areas could be deeply affected by a reduction (or worse, an interruption) of EU aid. 相似文献
92.
Jon Lundesgaard Victoria V. Tevlina 《Acta Borealia: A Nordic Journal of Circumpolar Societies》2017,34(1):26-49
After the Russian Revolution, with civil war and interventions, war communism (1918–1921) led to a period of great economic difficulties in Russia. The New Economic Policy was the solution, and concessions offered to Western business interests were a part of it. In the timber industry of the 1920s, the jointly Western and Soviet controlled company Russnorvegoles was an important concession. The majority of the Western interests were Norwegian, and the company was registered as a Norwegian limited liability company with seat in Oslo. The four-and-a-half-year history, involving Western interests in the operations of Russnorvegoles, is both interesting and dramatic. Profitability was undermined, and intricate currency arrangements played a significant role during the last eighteen months in which Western interests were involved. The prominent Norwegian fascist politicians Quisling and Prytz were both involved, and the latter emerged a wealthy man. Living on his means for some years following 1928, he contributed financially to the formation in 1933 of a Norwegian Nazi party (Nasjonal Samling/National Reunion). This dimension of Norwegian political history demonstrates the role that Russnorvegoles played beyond the timber industry. 相似文献
93.
William G. Sanders 《Australian journal of political science》2017,52(2):272-287
Using frameworks for the analysis of policy devised by Colebatch and Bacchi, three accounts are developed of the emergence of an Australian government program for Indigenous employment and community participation in remote areas. Timeframes increase and types of actors change moving from an authoritative choice account to structured interaction and then problematisation. Individual agents in authoritative choice are replaced in structured interaction by government departments as distinctive organisational actors. In the problematisation account, concepts become the dominant actors, changing over longer timeframes. In remote Indigenous employment a change in problematisation is discerned in the 1970s, from inclusion in award wages and social security to concerns about welfare dependence. A later problematisation change reframes a 1970s program from employment to welfare. 相似文献
94.
California archaeologists have proposed two alternative methods for harvesting mussels—“stripping” and “plucking”. These two methods are modeled and compared with experimental data from central California (Jones, T.L., Richman, J.R., 1995. On Mussels: Mytilus californianus as a Prehistoric Resource, North American Archaeologist 16, 33–58) and archaeological data from the Punta Gorda Rockshelter, a well-stratified coastal shell midden in northern California. Foragers at the Punta Gorda Rockshelter appear to have practiced a “stripping” technique at approximately 24 month intervals. It is argued that, while this strategy reduced immediate foraging returns, it increased the long-term net productivity of the mussel beds. 相似文献
95.
Julia A. King 《Archaeologies》2008,4(2):264-287
This paper focuses on archaeological curation repositories and their role as more than mere storage facilities. Archaeological collections are increasingly marshaled to confront anxieties about a seemingly ‘vanishing past’ and to arrest its disappearance. In Maryland, the state has invested heavily in a ‘state-of-the-art’ facility to protect and study archaeological collections in its custody. The facility has become the proxy for the collections and a form of cultural property itself, becoming part of the ongoing process that serves to recast this portion of the state as a place rooted in the past. 相似文献
96.
97.
计算机技术在考古学与文物保护中的应用 总被引:1,自引:0,他引:1
计算机技术与其他学科相结合发展起来的新技术将为考古学研究和文物保护提供现代化的科学手段,对考古学和文物保护将产生深远的影响.网上数字化博物馆的建立,考古资料、文物信息的网络化管理,考古信息的共享将对考古学传统的工作模式产生重要的影响. 相似文献
98.
秦俑彩绘保护研究综述 总被引:2,自引:0,他引:2
本文介绍了近十年来秦俑彩绘保护方面的研究成果,其中包括了保护技术的研究与优化;彩绘颜料、彩绘调合剂的分析研究;秦俑彩绘图案方面的研究与重构;彩绘保护剂性能的对比等等。提出了今后这方面研究的意见和建议。 相似文献
99.
2007年6—7月,在位于西安市长安县北里王村村东的上洛县主墓中,出土了一批色彩鲜艳的彩绘木俑。因该墓葬曾遭受早期盗扰,出土时木俑较为凌乱摆放在墓室前厅,原来的摆放位置已被扰乱。出土的彩绘木俑均有不同程度的腐朽,其中部分彩绘木俑保存较完整,部分有残缺;整体彩绘保存相对完整,局部有脱落现象。由于长期遭受墓葬环境的影响,所有的彩绘木俑出土时都处于亚饱水状态,而且机械强度较低,没有彩绘或彩绘脱落部位的木胎外观变黄、变脆。这批木俑的木俑颜色鲜艳、姿态各异,不仅具有较高的艺术价值,而且对研究明代民间的宗教信仰,以及葬丧习俗也颇有裨益。为了保护这批珍贵的文物,通过对比试验研究,采用自然脱水法使其脱水定形。使用3%PrimalAC33的水溶液对其彩绘层进行加固保护。同时,在保护处理的过程中,通过显微观察以及一些科学分析手段,对这批木俑的制作方法、装饰材料及工艺进行了初步的探索与研究。 相似文献
100.
A test aquarium containing water and waterlogged historical wooden material was observed during a three-year period at Vänernmuseum, Sweden, to test the feasibility of preserving and exhibiting archaeological wood or shipwrecks in a way accessible to the public. Experiments were also set up in a laboratory environment, to provide information on single factors that could influence the long-term preservation state of wood, and other processes that may occur in the water. 相似文献