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   7486篇
  免费   228篇
各国政治   400篇
工人农民   234篇
世界政治   585篇
外交国际关系   313篇
法律   4314篇
中国政治   49篇
政治理论   1732篇
综合类   87篇
  2020年   80篇
  2019年   104篇
  2018年   152篇
  2017年   157篇
  2016年   158篇
  2015年   116篇
  2014年   121篇
  2013年   853篇
  2012年   154篇
  2011年   185篇
  2010年   165篇
  2009年   171篇
  2008年   182篇
  2007年   182篇
  2006年   213篇
  2005年   188篇
  2004年   183篇
  2003年   199篇
  2002年   175篇
  2001年   230篇
  2000年   192篇
  1999年   181篇
  1998年   111篇
  1997年   108篇
  1996年   84篇
  1995年   87篇
  1994年   84篇
  1993年   94篇
  1992年   128篇
  1991年   158篇
  1990年   135篇
  1989年   153篇
  1988年   139篇
  1987年   159篇
  1986年   156篇
  1985年   152篇
  1984年   141篇
  1983年   146篇
  1982年   107篇
  1981年   101篇
  1980年   93篇
  1979年   100篇
  1978年   79篇
  1977年   64篇
  1976年   68篇
  1975年   66篇
  1974年   73篇
  1973年   69篇
  1972年   57篇
  1969年   59篇
排序方式: 共有7714条查询结果,搜索用时 0 毫秒
21.
A fatality following ingestion of the drug baclofen (Lioresal) is described. Baclofen was identified in urine by gas chromatography/mass spectrometry. After derivatization with trinitrobenzene sulfonic acid, baclofen was quantitated in serum and urine by high-performance liquid chromatography. The concentration of baclofen was 17 mg/L in serum and 760 mg/L in urine collected approximately 12 h after the overdose. To our knowledge, this is only the second reported fatality involving a baclofen overdose. The previous case did not include quantitation of baclofen in any biological fluid.  相似文献   
22.
23.
The application of Lacanian psychoanalytic semiotics to the intersecting categories of criminal justice and mental health is relatively novel. In this paper the phenomenon of transcarceration or the repeated channeling of disordered defendants (subjects) through institutional regimes of discipline and coercion is outlined. Attention is directed at the intra-psychic and intersubjective mechanisms responsible for the structuring of discourse. Lacan's schematization on the constitution of master narratives through the Discourse of the Master is also delineated. The author concludes by demonstrating how transcarceration is fundamentally about language and privileged speech patterns which agents of both systems as well as subjects themselves perpetuate. This revised version was published online in July 2006 with corrections to the Cover Date.  相似文献   
24.
25.
26.
Correlation between plasma and bone marrow tricyclic antidepressants has not been studied before. Two groups of rabbits were given 10 and 20 mg of desipramine/kg body weight, respectively. Desipramine was administered to the animals once daily by mouth for 5 days. On the fifth day the animals were sacrificed and blood and bone marrow samples were collected and analyzed using a high performance liquid chromatographic (HPLC) method. Data showed that a correlation exists between bone marrow and blood desipramine. The bone marrow desipramine concentration increased as its blood levels increased. The average ratio of bone marrow to blood desipramine +/- S.D. (standard deviation) in both dosage groups was 37.2 +/- 4.46 with a range of 30.99-44.82. This investigation is promising and shows that bone marrow could be used as an alternative tissue in the absence of a suitable blood sample.  相似文献   
27.
The Green River Murder Investigation in King County, Washington, is currently the longest active serial murder investigation in U.S. history. During its course, over 26 separate scenes with from one to five victims each have been processed. The experience of the authors is presented in order to acquaint other agencies with techniques of outdoor scene processing that have evolved during recovery of remains from Green River and other skeletal cases.  相似文献   
28.
29.
The population-adjusted rate of teenage suicide in King County, Washington, was reviewed for the 26 years from 1959 to 1984. For the entire period, the rate did not change significantly. An abrupt change did occur during the middle of this period, but, for reasons discussed in the text, this may well represent a change in procedures and philosophy of death certification rather than a real change in rate. Reasons for the apparent discrepancy with national statistics are discussed.  相似文献   
30.
In the statistical interpretation of forensic glass evidence it is standard practice to make the assumption of homogeneity of the refractive index (RI) of the source glass, or of localized homogeneity. However, the work of Locke and Hayes showed that, for toughened windscreen glass, this assumption might not be true. This work is well cited, but there appears to have been little follow-on published research. Furthermore, the toughening process is something known to affect the refractive index, and is a process that float glass does not undergo. Float glass is a major component of casework in New Zealand and for that reason it would be interesting to know whether the findings of Locke and Hayes apply when dealing with float glass. In this paper we describe an experiment similar to that of Locke and Hayes, systematically examining the variation of RI in a pane of float window glass. It was found that, although there were no systematic differences in refractive index, there were observable differences across the pane.  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