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   1394篇
  免费   89篇
  2024年   6篇
  2023年   27篇
  2022年   9篇
  2021年   5篇
  2020年   60篇
  2019年   43篇
  2018年   113篇
  2017年   114篇
  2016年   94篇
  2015年   68篇
  2014年   62篇
  2013年   350篇
  2012年   61篇
  2011年   57篇
  2010年   36篇
  2009年   33篇
  2008年   36篇
  2007年   21篇
  2006年   26篇
  2005年   15篇
  2004年   15篇
  2003年   15篇
  2002年   18篇
  2001年   19篇
  2000年   9篇
  1999年   13篇
  1998年   15篇
  1997年   9篇
  1996年   8篇
  1995年   8篇
  1994年   7篇
  1993年   13篇
  1992年   7篇
  1991年   9篇
  1990年   8篇
  1989年   7篇
  1988年   7篇
  1987年   5篇
  1986年   10篇
  1985年   5篇
  1982年   3篇
  1981年   5篇
  1979年   2篇
  1978年   3篇
  1977年   2篇
  1975年   2篇
  1969年   3篇
  1967年   2篇
  1959年   2篇
  1950年   5篇
排序方式: 共有1483条查询结果,搜索用时 15 毫秒
21.
The present paper surveys the discussions conducted by official statisticians regarding the ideal structure according to which a national data collection system should have been designed if it was to meet the challenges put up by the various transformation Western countries have undergone since the beginning of the 19th century. Arguments in favour of coordination, centralization, or decentralization have emerged for the first time in 1832 Britain, when the Statistical Bureau of the Board of Trade was created. Up to 1945, this debate went on, the industrial take-off, the economic crises, and the world wars all being occasions for its protagonists to put forward their preferred view. The perspective we take here is original in two respects: on the one hand, instead of confining ourselves to the major statistical systems (those of France, Britain, and the USA), we intend to evoke a large number of cases and, from this comparative standpoint, propose a general account of the drive towards centralization; on the other hand, instead of restraining our-selves to the 19th century, we cover the entire time-frame extending from 1800 to 1945.  相似文献   
22.
23.
24.
25.
The Greek Neolithic, here divided into five phases, is the oldest in Europe. Geographically, it is the closest to the Near East and has thus long been seen as an impoverished derivative of the latter. However, recent research has tended to emphasize the autochthonous nature of Neolithic development in Europe, including Greece. The Greek Neolithic economy, which was based almost entirely on domesticates, and its densely packed, long-lived villages strongly recall the Near East, as do also the early emphasis on fine, decorated, nonculinary pottery and the wealth of figurines. On the other hand, the evolution of stylistic patterns is specifically Greek, although generally related to trends in the Balkans. Originality in the development of the Greek Neolithic is also seen in its latest phase, with apparent decreases, rather than increases, in site density, social differentiation, and, to some extent, long-distance trade. At the same time, however, the dichotomy became much sharper between the rich agricultural plains of northern Greece and the more pastoral(?) regions of the Peloponnese and Cycladic Islands; this presages similar contrasts during the Bronze Age.  相似文献   
26.
27.
28.
29.
30.
G. Hervé  P. Lanos 《Archaeometry》2018,60(4):870-883
We present a new curve of the directional secular variation of the geomagnetic field in Western Europe between 1500 bce and 200 ce . Its computation relies on a Bayesian framework. The fast secular variation during the Late Bronze and Early Iron Ages makes archaeomagnetic dating efficient with a respective precision of 150–200 and 60–100 years during these periods. The Bayesian method also provides posterior date distributions that refine the dating of reference data, especially during the period of the Hallstattian radiocarbon plateau. Archaeomagnetism becomes a valuable alternative to radiocarbon and will help to improve the archaeological chronologies.  相似文献   
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