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   167篇
  免费   11篇
  2023年   2篇
  2022年   1篇
  2020年   3篇
  2019年   1篇
  2018年   6篇
  2017年   10篇
  2016年   6篇
  2015年   5篇
  2014年   2篇
  2013年   44篇
  2012年   4篇
  2011年   3篇
  2010年   2篇
  2009年   8篇
  2008年   5篇
  2007年   6篇
  2006年   2篇
  2005年   2篇
  2004年   3篇
  2003年   1篇
  2002年   6篇
  2001年   4篇
  2000年   5篇
  1999年   4篇
  1998年   5篇
  1996年   2篇
  1995年   1篇
  1994年   2篇
  1993年   1篇
  1991年   1篇
  1990年   1篇
  1987年   4篇
  1986年   2篇
  1985年   1篇
  1984年   1篇
  1983年   2篇
  1982年   6篇
  1981年   1篇
  1980年   1篇
  1979年   2篇
  1977年   1篇
  1976年   1篇
  1975年   2篇
  1974年   2篇
  1973年   1篇
  1972年   1篇
  1971年   1篇
  1970年   1篇
排序方式: 共有178条查询结果,搜索用时 15 毫秒
111.
Lead concentrations were measured in 41 rib samples from the Romano-British cemetery at Poundbury and in two sets of soil samples from the graves yielding up the bones. The levels of lead in the soil were in no way exceptional (means for the two series were 16·7 and 24·8 μg/g dry weight) and there was no correlation between soil lead and bone lead concentrations.Since bone lead concentrations vary independently of those in the soil, it is unlikely that the bones are contaminated by lead in the soil, at least under the conditions prevailing at this particular site.  相似文献   
112.
A pathological condition, aural atresia, was discovered associated with human remains recovered from a late 19th‐century Catholic cemetery 2 km south of Battleford, Saskatchewan, Canada. Aural atresia, a congenital condition that results in a non‐existent external auditory meatus, was apparent on the right temporal bone of the remains of a young adult male. A complete osteological and contextual assessment, which included the use of a SkyScan 1172 micro‐CT scanner on the pathological incus that was recovered, indicated that the right incus and malleus had fused during early embryological development. The artifacts associated with this individual included a pocket mirror that may have represented a connection to the practice of oralism due to the discouragement of sign language by the authorities in that time period. The combination of advanced bone imaging and a complete contextual analysis suggests a differential diagnosis of nonfunctional hearing associated with the right ear, and the individual may have used a different means of communication. Copyright © 2011 John Wiley & Sons, Ltd.  相似文献   
113.
114.
This article considers the significance of the scholarly and practical engagement with the Northern Ireland problem on the part of the Scottish politician and academic John P. Mackintosh, and the academic and controversialist Bernard Crick. It is argued that they were among the few scholars and public figures outside of Northern Ireland for whom the crisis represented an opportunity to explore more searchingly issues with broader significance for the UK as a whole, particularly devolution, and for relations within and between the islands of Britain and Ireland. For both men, Northern Ireland brought into sharp focus questions of sovereignty and identity, and of constitutional reform in the UK.  相似文献   
115.
116.
This paper focuses on the methods used in a project which set out to capture the movements and to consider the wellbeing of 30 teenagers on their journeys to and from school. A mobile phone linked to a GPS receiver was used to automatically log travel patterns whilst the respondents added ‘blog’ images and text about how they felt on the journey. Follow up interviews further explored the data. The paper shows that by using a range of methods the young people became involved in the project in different ways providing a rich picture of contingent and complex school journeys.  相似文献   
117.
118.
To understand the nature of trade/exchange of ‘Basque’ copper kettles and their fragments among Indigenous communities from Québec to Ontario, Canada, we examined 948 copper samples from 75 archaeological sites. We found that 936 samples were sortable into 11 coarse chemical groups: seven biased towards Ontario, three favouring Québec and only one balanced between the two provinces. This pattern may represent kettles and pieces ‘mostly traded’ or ‘mostly kept’ by Indigenous groups within Québec. Chemical group distribution within individual provinces is complex. A tentative chronology of copper chemical groups provides additional insight into the complex trading/exchange patterns among the Indigenous groups of southern Ontario.  相似文献   
119.
120.
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