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   743篇
  免费   46篇
各国政治   42篇
工人农民   81篇
世界政治   49篇
外交国际关系   19篇
法律   431篇
中国政治   9篇
政治理论   155篇
综合类   3篇
  2023年   6篇
  2022年   13篇
  2021年   12篇
  2020年   27篇
  2019年   30篇
  2018年   48篇
  2017年   34篇
  2016年   52篇
  2015年   19篇
  2014年   30篇
  2013年   109篇
  2012年   28篇
  2011年   36篇
  2010年   24篇
  2009年   23篇
  2008年   29篇
  2007年   36篇
  2006年   21篇
  2005年   24篇
  2004年   22篇
  2003年   23篇
  2002年   21篇
  2001年   8篇
  2000年   1篇
  1999年   6篇
  1998年   4篇
  1997年   6篇
  1996年   1篇
  1995年   8篇
  1994年   8篇
  1993年   5篇
  1992年   6篇
  1991年   3篇
  1990年   6篇
  1989年   5篇
  1988年   5篇
  1987年   6篇
  1986年   6篇
  1985年   12篇
  1984年   7篇
  1983年   2篇
  1982年   5篇
  1979年   4篇
  1978年   1篇
  1977年   1篇
  1975年   1篇
  1974年   1篇
  1972年   3篇
  1966年   1篇
排序方式: 共有789条查询结果,搜索用时 7 毫秒
251.
252.
This article examines the intercultural context of issues related to genetic research on Native peoples. In particular, the article probes the disconnect between Western and indigenous concepts of property, ownership, and privacy, and examines the harms to Native peoples that may arise from unauthorized uses of blood and tissue samples or the information derived from such samples. The article concludes that existing legal and ethical frameworks are inadequate to address Native peoples' rights to their genetic resources and suggests an intercultural framework for accommodation based on theories of intergroup equality and fundamental human rights.  相似文献   
253.
254.
Under the new legislation, a Medical Officer of Health can order blood testing when victims of crime, emergency service workers, "good Samaritans," and others have reason to believe that they may have been exposed to a communicable disease.  相似文献   
255.
256.
On 9 May 2002, the BC Court of Appeal released its decision in a prisoner's sentencing appeal where the Crown and the defence agreed that the original sentence was illegal, and differed in their positions as to the appropriate sentence by only one day. That one day meant the difference between serving the sentence in a provincial jail as opposed to a federal penitentiary.  相似文献   
257.
258.
Aspartic acid racemization has been found to be an accurate measure of age at death for recent forensic material. This paper examines the practicality of using acid etching of the tooth surface to extract amino acids from the enamel for racemization analysis. By serial etching of the tooth and contamination of the teeth with bovine serum albumin prior to etching, the ability of etching to remove contamination was assessed. The destructiveness of the method was visualized and quantified using micro-computed tomography (micro-CT). By bleaching the teeth and by deeper etching it was possible to obtain more consistent values. While etching had little effect on the enamel at the macroscale, it did have an impact at the microscale. The quantities of enamel removed varied depending upon the tooth morphology, but were not large. Acid etching of enamel thus appears to be a promising new method for extracting proteins for amino acid racemization age estimation noninvasively.  相似文献   
259.
The plasma cell dyscrasias are a diverse group of disorders characterized by the production of a clonal paraprotein. Sudden death is a recognized complication of the plasma cell dyscrasias, most commonly in individuals with cardiac involvement by amyloidosis. However, the current forensic literature has no reported cases in which sudden death resulted from complications of a plasma cell dyscrasia that was first diagnosed by postmortem histologic examination. We present the case of a woman whose sudden and unexpected death resulted from a seizure. Postmortem examination revealed no evidence of trauma or a grossly identifiable natural disease process that would have accounted for her death. However, microscopic and immunohistologic studies revealed a previously undiagnosed plasma cell dyscrasia, the clonality of which was determined by immunohistochemical studies for immunoglobulin light chains, that was not associated with amyloid deposition. This case elucidates a previously unrecognized cause of sudden unexpected death and illustrates the importance of microscopic studies in selected cases examined in medical examiner/coroner offices.  相似文献   
260.
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