首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   2164篇
  免费   98篇
  2020年   38篇
  2019年   40篇
  2018年   56篇
  2017年   49篇
  2016年   82篇
  2015年   54篇
  2014年   55篇
  2013年   559篇
  2012年   72篇
  2011年   67篇
  2010年   65篇
  2009年   59篇
  2008年   50篇
  2007年   47篇
  2006年   46篇
  2005年   32篇
  2004年   20篇
  2003年   23篇
  2002年   33篇
  2001年   37篇
  2000年   26篇
  1999年   29篇
  1998年   21篇
  1997年   27篇
  1996年   26篇
  1995年   27篇
  1994年   21篇
  1993年   29篇
  1992年   25篇
  1991年   23篇
  1989年   19篇
  1988年   16篇
  1987年   23篇
  1986年   20篇
  1985年   23篇
  1984年   32篇
  1983年   24篇
  1982年   28篇
  1981年   20篇
  1980年   31篇
  1979年   25篇
  1978年   20篇
  1977年   17篇
  1976年   17篇
  1975年   13篇
  1973年   16篇
  1972年   18篇
  1971年   16篇
  1970年   11篇
  1967年   17篇
排序方式: 共有2262条查询结果,搜索用时 15 毫秒
51.
Abstract. In postcommunist politics many of the ‘new national right’ political formations in Eastern Europe and the former Soviet Union have joined forces with the communist successor parties. Such a combination is, on the surface, a baffling mixture; how is it possible that two fundamentally different ideological approaches (nationalism and internationalist socialism) can coexist and actively cooperate to form such a potent political force? What are the conditions under which such political cooperation emerges? This article attempts to answer the above questions by, first, empirically testing the effects of several factors which might explain postcommunist–nationalist political cooperation. Second, the quantitative analysis is buttressed with a comparison of the Hungarian and Russian cases. The analysis indicates that the most important variable associated with the emergence of postcommunist–nationalist political cooperation is the effect of previous regime type.  相似文献   
52.
53.
54.
Excavation of Testar del Molí, the only workshop found in the Manises-Paterna area, revealed the existence of a fourteenth-century ceramic workshop covering the remains of the thirteenth-century workshop. This study is concerned with the fourteenth-century production, and forthcoming papers will connect both epochs following the findings of current excavations. The chemical and mineralogical characterization of the ceramic production of this workshop shows the presence of three groups of ceramic pastes which could also be distinguished by, and, thus, related to, their daily use. The raw materials found in the excavation have also been mineralogically and chemically characterized, and a model of possible mixtures of raw materials has also been developed in order to determine their possible use in the manufacture of the pottery previously characterized.  相似文献   
55.
Lead-glazed pottery from the medieval workshop of Les Olleries Majors (Paterna, Spain) has been studied by Mössbauer spectroscopy, X-ray diffraction, X-ray fluorescence and optical spectroscopy. Yellow, brown and honey-coloured glazes occur on pots glazed on only one surface. They have virtually identical compositions and transmittance spectra, their apparent differences in colour are due to the colours of the underlying pastes. Yellow glazes occur on cream-coloured calcareous bodies, honey-coloured glazes occur on less calcareous bodies with some development of hematite, while brown glazes occur on red siliceous cooking-pots. Green glazes are found on pots glazed on both surfaces; the glazes trapped CO2 evolved by decomposing carbonates, resulting in an internal reducing environment. This caused the reduction of iron to the ferrous state which coloured the glaze green by diffusion.  相似文献   
56.
57.
58.
By the 1880s, imperial government's practice of ‘retreating’ to the Indian hill stations for much of the year was well established. Despite the strength of this new tradition, such a relocation of colonial administration never lacked its critics. This paper examines the expanding administrative use of the hill stations from the early nineteenth century through the 1880s. As the nineteenth century ‘scientific’ framework for British control of India was formed, conflicting strategies and practices for maintaining imperial control required mediation and contrasting frameworks for defining duty and loyalty between government and subject vied for dominance. The significance of Utilitarian thought, changing appraisals of climate and constructions of race are evaluated in an analysis of the imperial hill stations.  相似文献   
59.
60.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号