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   528篇
  免费   14篇
各国政治   25篇
工人农民   39篇
世界政治   45篇
外交国际关系   41篇
法律   240篇
中国政治   15篇
政治理论   135篇
综合类   2篇
  2023年   6篇
  2020年   8篇
  2019年   11篇
  2018年   14篇
  2017年   13篇
  2016年   12篇
  2015年   10篇
  2014年   8篇
  2013年   64篇
  2012年   13篇
  2011年   24篇
  2010年   12篇
  2009年   12篇
  2008年   8篇
  2007年   8篇
  2006年   24篇
  2005年   14篇
  2004年   19篇
  2003年   16篇
  2002年   17篇
  2001年   17篇
  2000年   9篇
  1999年   20篇
  1998年   6篇
  1997年   8篇
  1996年   8篇
  1995年   12篇
  1994年   6篇
  1993年   5篇
  1992年   7篇
  1991年   6篇
  1990年   7篇
  1989年   13篇
  1988年   9篇
  1987年   8篇
  1986年   10篇
  1985年   4篇
  1984年   5篇
  1983年   6篇
  1982年   5篇
  1981年   6篇
  1979年   8篇
  1978年   6篇
  1977年   4篇
  1973年   3篇
  1972年   3篇
  1971年   3篇
  1970年   3篇
  1968年   5篇
  1966年   3篇
排序方式: 共有542条查询结果,搜索用时 15 毫秒
501.
502.
503.
504.
505.
While lying down, a 23-year-old man detonated an improvised explosive device placed behind his head. The posterior neck and shoulders were singed, and much of the brain was avulsed. Death was due to laceration and partial avulsion of the cerebrum, midbrain, and brain stem. The injuries had a directional nature. Facts derived from the scene investigation and gross dissection, including nature, distribution, and extent of the wounds, in conjunction with preceding medical and social history, allowed for a reasonable reconstruction of the circumstances.  相似文献   
506.
The assessment of dangerousness is not a diagnosis, but rather a clinical impression based on the individual's past history of violence and many other factors. With regard to the mental state, it has been noted that “the essence of dangerousness appears to be a paucity of concern for others'” (Roth, 1974). As a subjective opinion, predicting violence and future dangerousness bears the weight of much scrutiny and due diligence. Threat assessment evaluations have inherent social and legal ramifications, and the responsibility must be accepted with the knowledge that accuracy may not always be achieved. This paper discusses the various aspects of predicting future violence and dangerousness and the caveats that come with such tasks.  相似文献   
507.
508.
Davis  Douglas D.  Reilly  Robert J. 《Public Choice》1999,100(1-2):31-38
Nitzan's (1991) analysis of differential sharing rules in a collective rent-seeking setting is reconsidered. Two groups, each with more than one member, are presumed to use different linear combinations of two sharing rules, one based on an equal-division of the prize, and the other on each member's relative effort. We show that an equilibrium always exists for this type of game, and then characterize the equilibrium. Our result is contrary to Nitzan's claims that (a) in the general case an equilibrium often does not exist, and (b) an equilibrium never exists when the groups use the polar extreme rules.  相似文献   
509.
Why a combatant command for Africa? I argue that AFRICOM was formed to implement the U.S. national security strategy that seeks to strengthen states and eliminate ungoverned space, as well as establish relationships with African states that offer a means to greater state stability and foster economic development. In so doing, it counters global jihadist by denying them haven among weak governments or in ungoverned areas. It protects U.S. interests in resources by helping governments become more stable. And it competes with the Chinese approach that could worsen the status quo of ineffective states and ungoverned space. Indeed, the U.S. approach of increasing state effectiveness makes African countries less susceptible to the problems that may arise from the Chinese approach and so serves China's interests in access to natural resources.  相似文献   
510.
Abstract: Pork ribs with intact muscle tissue were used in an experimental attempt to identify bullet wipe on bone at distances from 1 to 6 feet with 0.45 caliber, full metal jacket ammunition. This resulted in the unexpected finding of primer‐derived gunshot residue (GSR) deep within the wound tract. Of significance is the fact that the GSR was deposited on the bone, under the periosteum, after the bullet passed through a Ziploc® bag and c. 1 inch of muscle tissue. It is also important to note that the GSR persisted on the bone after the periosteum was forcibly removed. The presence of primer‐derived GSR on bone provides the potential to differentiate gunshot trauma from blunt trauma when the bone presents an atypical gunshot wound. In this study, the presence of gunshot primer residue at a distance of 6 feet demonstrates the potential for establishing maximum gun‐to‐target distance for remote shootings.  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