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   5篇
各国政治   16篇
工人农民   8篇
世界政治   59篇
外交国际关系   5篇
法律   56篇
中国政治   1篇
政治理论   27篇
  2023年   3篇
  2022年   1篇
  2021年   2篇
  2020年   1篇
  2019年   3篇
  2018年   2篇
  2017年   8篇
  2016年   7篇
  2015年   4篇
  2014年   4篇
  2013年   26篇
  2012年   7篇
  2011年   6篇
  2010年   2篇
  2009年   2篇
  2008年   2篇
  2007年   5篇
  2006年   4篇
  2005年   5篇
  2004年   4篇
  2003年   7篇
  2002年   5篇
  2001年   4篇
  2000年   16篇
  1999年   8篇
  1997年   1篇
  1996年   2篇
  1995年   2篇
  1994年   1篇
  1993年   1篇
  1992年   2篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1987年   1篇
  1986年   2篇
  1985年   3篇
  1983年   1篇
  1981年   2篇
  1980年   5篇
  1979年   3篇
  1978年   2篇
  1975年   2篇
  1966年   1篇
排序方式: 共有172条查询结果,搜索用时 22 毫秒
61.
62.
63.
64.
A fatal case of 1,4-butanediol (1,4-BD) oral ingestion is reported here, in which a 51-year-old man was found dead in his bed. According to the police report, the deceased was a known drug user. A glass bottle labeled (and later confirmed to be) “Butandiol 1,4” (1,4-BD) was found in the kitchen. Furthermore, the deceased's friend stated that he consumed 1,4-BD on a regular basis. The autopsy and histological examination of postmortem parenchymatous organ specimens did not revealed a clear cause of death. Chemical-toxicological investigations revealed gammahydroxybutyrat (GHB) in body fluids and tissues in the following quantities: femoral blood 390 mg/L, heart blood 420 mg/L, cerebrospinal fluid 420 mg/L, vitreous humor 640 mg/L, urine 1600 mg/L, and head hair 26.7 ng/mg. In addition, 1,4-BD was qualitatively detected in the head hair, urine, stomach contents, and the bottle. No other substances, including alcohol, were detected at pharmacologically relevant concentrations. 1,4-BD is known as precursor substance that is converted in vivo into GHB. In the synoptic assessment of toxicological findings, the police investigations and having excluded other causes of death, a lethal GHB-intoxication following ingestion of 1,4-BD, can be assumed in this case. Fatal intoxications with 1,4-BD have seldom been reported due to a very rapid conversion to GHB and, among other things, non-specific symptoms after ingestion. This case report aims to give an overview to the published of fatal 1,4-BD-intoxications and to discuss the problems associated with detection of 1,4-BD in (postmortem) specimens.  相似文献   
65.
This article examines the decision‐making process leading to the new constitutional articles on education in Switzerland. It analyzes how actors from both state levels (Confederation and cantons) could reach consensus in a process that was prone to a “joint‐decision trap”. To that end, we hypothesize which factors may be conducive to a “problem‐solving” style of policy‐making in a compulsory negotiation system. Rich empirical material from various sources supports our theoretical arguments: We show that shared beliefs and a common frame of reference, the procedural separation between constitutional and distributional issues, neutral brokers, and informal structures were all beneficial to the success of the reform project.  相似文献   
66.
67.
DAMAGE          下载免费PDF全文
  相似文献   
68.
69.
70.
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