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   2043篇
  免费   82篇
各国政治   77篇
工人农民   315篇
世界政治   146篇
外交国际关系   120篇
法律   954篇
中国政治   27篇
政治理论   459篇
综合类   27篇
  2023年   7篇
  2022年   7篇
  2021年   13篇
  2020年   35篇
  2019年   43篇
  2018年   68篇
  2017年   78篇
  2016年   66篇
  2015年   59篇
  2014年   70篇
  2013年   299篇
  2012年   53篇
  2011年   68篇
  2010年   49篇
  2009年   55篇
  2008年   67篇
  2007年   81篇
  2006年   68篇
  2005年   69篇
  2004年   87篇
  2003年   64篇
  2002年   56篇
  2001年   32篇
  2000年   44篇
  1999年   26篇
  1998年   21篇
  1997年   37篇
  1996年   39篇
  1995年   24篇
  1994年   34篇
  1993年   28篇
  1992年   33篇
  1991年   34篇
  1990年   26篇
  1989年   25篇
  1988年   23篇
  1987年   12篇
  1986年   21篇
  1985年   21篇
  1984年   19篇
  1983年   20篇
  1982年   20篇
  1981年   22篇
  1980年   16篇
  1979年   14篇
  1978年   12篇
  1977年   13篇
  1976年   11篇
  1974年   6篇
  1973年   6篇
排序方式: 共有2125条查询结果,搜索用时 15 毫秒
171.
No consensus yet exists on how to handle incidental findings (IFs) in human subjects research. Yet empirical studies document IFs in a wide range of research studies, where IFs are findings beyond the aims of the study that are of potential health or reproductive importance to the individual research participant. This paper reports recommendations of a two-year project group funded by NIH to study how to manage IFs in genetic and genomic research, as well as imaging research. We conclude that researchers have an obligation to address the possibility of discovering IFs in their protocol and communications with the IRB, and in their consent forms and communications with research participants. Researchers should establish a pathway for handling IFs and communicate that to the IRB and research participants. We recommend a pathway and categorize IFs into those that must be disclosed to research participants, those that may be disclosed, and those that should not be disclosed.  相似文献   
172.
173.
174.
In an effort to take positive steps toward coping with problems for families and children created by high levels of separation and divorce, ever increasing civil caseloads and the exposure of children to interparental conflict, court‐affiliated educational programs have emerged in the United States for parents separating from their spouse or partner or going through a divorce. This article will provide an overview of the creation of such programs and their development, which includes a discussion regarding the numerous states currently mandating parents to attend. It will summarize some of the research which has been conducted as to the efficacy of the programs and will provide the results of our nationwide research for each state's parent education status. There is a discussion of domestic violence issues and sensitivities in the context of parent education programs and possible future directions for mandatory parent education.  相似文献   
175.
176.
Eclogue     
  相似文献   
177.
178.
The transportation or importation into any State, Territory, or possession of the United States for delivery or use therein of intoxicating liquors, in violation of the laws thereof, is hereby prohibited. 1  相似文献   
179.
180.
This article documents a U.S. Cuban foreign policy cycle that operated in tandem with the presidential electoral cycle between 1992 and 2004. During these post–Cold War years, when Cuba posed no threat to U.S. national security, influential, well-organized Cuban Americans leveraged political contributions and votes to tighten the embargo on travel and trade, especially at the personal level. U.S. presidential candidates, most notably incumbent presidents seeking re-election, responded to their demands with discretionary powers of office. When presidential candidates supported policies that made good electoral sense but conflicted with concerns of state, they subsequently reversed or left unimplemented Cuba initiatives. After describing the logic behind an ethnic electoral policy cycle and U.S. personal embargo policy between 1992 and 2004, this article examines Cuban American voter participation, political and policy preferences, lobbying, political contributions, and the relationship between the ethnic policy and presidential election cycles.  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