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   741篇
  免费   56篇
  2024年   3篇
  2023年   22篇
  2022年   4篇
  2021年   9篇
  2020年   35篇
  2019年   36篇
  2018年   102篇
  2017年   74篇
  2016年   65篇
  2015年   49篇
  2014年   40篇
  2013年   165篇
  2012年   35篇
  2011年   24篇
  2010年   15篇
  2009年   20篇
  2008年   15篇
  2007年   12篇
  2006年   3篇
  2005年   4篇
  2004年   2篇
  2003年   4篇
  2002年   4篇
  2001年   11篇
  2000年   5篇
  1999年   1篇
  1998年   1篇
  1997年   3篇
  1996年   3篇
  1995年   8篇
  1994年   2篇
  1993年   3篇
  1992年   3篇
  1991年   2篇
  1989年   2篇
  1986年   1篇
  1984年   1篇
  1982年   2篇
  1979年   1篇
  1977年   1篇
  1975年   1篇
  1974年   1篇
  1960年   1篇
  1953年   1篇
  1951年   1篇
排序方式: 共有797条查询结果,搜索用时 343 毫秒
121.
This paper looks at the St Kitts and Nevis Mummies' plays as published in Folklore by Roger Abrahams (1968). It demonstrates that the texts were originally taken from a play published by the Victorian children's author Mrs J.H. Ewing. This play appeared in several editions, most notably in two series issued by the Society for Promoting Christian Knowledge. Mrs Ewing's text was itself compiled from three northern English chapbook texts and a version from Silverton, Devon. The relative contribution of these texts to Mrs Ewing's play, and the way she put them together, are both explored.  相似文献   
122.
123.
124.
125.
126.
127.
An alabaster lid with a resinous accretion burnt or stuck next to the handle and on the base was uncovered in the Nabataean rest stop in Moyat Aawad (Moa) in the Arava valley in Israel. The analysis of this resin sample utilising GC‐MS revealed several types of compounds. The chemical analysis revealed compounds typically present in pine tar and plant lipid material (probably oil). The use of pine resin, tar and pitch derived from plant resins is documented in antiquity, not only as a sealant or caulking material but also as medicines, antiseptics and ritual balms.  相似文献   
128.
Abstract

Multiple sclerosis (MS) was first presented in a clinical setting in 1838. In this paper the presentation and treatment of a transient hemiparesis in a drummer in 1789 is discussed. This may have been an early case of MS and presents evidence against the theory that MS is an infectious disease beginning in the 19th century.  相似文献   
129.
SUMMARY: In 2014, during construction work at the ex-Civil Hospital in Gibraltar, excavations led by the Gibraltar Museum revealed a major, previously unknown burial ground containing more than 200 skeletons. We present the historical, archaeological and radiometric dating evidence from the site alongside the results of initial osteological analyses. The data indicate that the burials pertain to an earlier 16th-century Spanish hospice, and therefore stand to offer new insights into the functioning of this early modern hospital and the health and movements of people at a time of incipient globalization.  相似文献   
130.
This article demonstrates the relevance of future discounting behavior to studies of prehistoric subsistence strategies. The case study of Agave spp. bajada cultivation among the Classic Period, a.d. 1150–1450, Hohokam of southern Arizona illustrates how slight discounting of future rewards can significantly alter agriculture investment strategies. Despite a higher kcal/hour return than maize agriculture, agave cultivation lessened or ceased in several communities during a time in which intensification would be predicted due to inferred subsistence stress. We surmise the decade-long maturation of agave made it unattractive relative to more immediate return resources in any context that presented risks to land tenure. The cessation of agave cultivation can be understood on two levels of explanation. The long-term investments required by agave and tendency to discount future rewards are the ultimate causes. Political and social instability during the tumultuous Classic period, causing increased insecurity in land tenure, are the proximal causes.  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