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   68015篇
  免费   3004篇
各国政治   4488篇
工人农民   2869篇
世界政治   6027篇
外交国际关系   3790篇
法律   31522篇
中国共产党   11篇
中国政治   765篇
政治理论   20604篇
综合类   943篇
  2021年   401篇
  2020年   1158篇
  2019年   1509篇
  2018年   1668篇
  2017年   1946篇
  2016年   2170篇
  2015年   1820篇
  2014年   2096篇
  2013年   10499篇
  2012年   1590篇
  2011年   1704篇
  2010年   1808篇
  2009年   2069篇
  2008年   1734篇
  2007年   1715篇
  2006年   1881篇
  2005年   1767篇
  2004年   1654篇
  2003年   1484篇
  2002年   1482篇
  2001年   1546篇
  2000年   1357篇
  1999年   1237篇
  1998年   1109篇
  1997年   973篇
  1996年   957篇
  1995年   915篇
  1994年   912篇
  1993年   931篇
  1992年   940篇
  1991年   965篇
  1990年   906篇
  1989年   946篇
  1988年   943篇
  1987年   980篇
  1986年   946篇
  1985年   1016篇
  1984年   909篇
  1983年   974篇
  1982年   875篇
  1981年   826篇
  1980年   655篇
  1979年   675篇
  1978年   590篇
  1977年   521篇
  1976年   484篇
  1975年   400篇
  1974年   397篇
  1973年   407篇
  1972年   360篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
971.
Social scientists have increasingly become involved in the submission of amicus curiae or friend of the court briefs in legal cases being decided by state and federal courts. This increase has triggered considerable debate about the use of briefs to communicate relevant social science research. This article evaluates the strengths and weaknesses of various methods of summarizing social science research for the courts. It also reviews the procedures for submitting briefs developed by the American Psychology-Law Society which, in collaboration with the American Psychological Association, has submitted its first brief inMaryland v. Craig, a case recently decided by the U.S. Supreme Court.The authors wish to thank James Ogloff, Kathy Roesch, and Claudia Worrell for their comments on an earlier draft  相似文献   
972.
In 1989, after almost two decades of substance-by-substance standard setting, the Occupational Safety and Health Administration (OSHA) promulgated its Air Contaminants Standard, imposing new exposure limits for 376 toxic substances encountered in U.S. industry. In marked contrast to earlier regulations, the Air Contaminants Standard has generated relatively little industry opposition. This paper analyzes the standard in the context of the twenty-year debate over the appropriate role for technological feasibility and economic compliance costs in occupational health policy. The political feasibility of the new standard is traced to OSHA's abandonment of "technology forcing" in favor of reliance on "off-the-shelf" technologies already in use in major firms. While important as an embodiment of OSHA's new "generic" approach to regulation, the Air Contaminants Standard cannot serve as a model for future occupational health policy, due to its reliance on informal, closed-door mechanisms for establishing regulatory priorities and permissible exposure limits.  相似文献   
973.
974.
InMaryland v. Craig, the United States Supreme Court relied heavily on a brief prepared by a committee of the American Psychology-Law Society on behalf of the American Psychological Association (APA). The APA brief concluded that sexually abused children may be particularly vulnerable to distress in the legal process, especially when forced to confront the defendant face to face, and that such acute distress may be inconsistent with the state's interests in promotion of reliable testimony and child welfare. APA also argued that psychological theory and research provide foundations for individualized determination of the need for measures to protect children from face-to-face confrontation. *** DIRECT SUPPORT *** AFE06051 00002  相似文献   
975.
In Summit Health Ltd. v. Pinhas, the United States Supreme Court by a narrow majority found that the exclusion of an ophthalmologist from a hospital in Los Angeles had a sufficient effect on interstate commerce to establish federal jurisdiction under the Sherman Act. In resolving a split among the federal circuit courts of appeal, the Court applied the broad jurisdictional test from McLain v. Real Estate Board of New Orleans, Inc. to peer review proceedings. Despite many ambiguities in the majority opinion by Justice Stevens and a scathing dissent by Justice Scalia, the effect of Pinhas will be to increase the suits in federal court on antitrust grounds brought by aggrieved medical staff members and applicants denied appointments or privileges, and to decrease, if not eliminate, the likelihood of preliminary dismissal on jurisdictional grounds. This, in turn, should serve to emphasize the importance of complying with the Health Care Quality Improvement Act in order to obtain immunity from damages under federal antitrust and state laws.  相似文献   
976.
A number of social and psychological factors present in most adolescent parents place them at high risk for abusive behavior toward their children. However, current child abuse potential measures do not include adolescent samples as part of the psychometric data base. Consequently, the purpose of this study was twofold: (1) to investigate whether a Black adolescent sample would perform differently than an adult nonabusing sample on the Child Abuse Potential Inventory (CAP), and (2) to examine the relationship between history of abuse or witnessing violence to scores on the CAP. Results revealed that Black adolescents scored significantly higher than the adult normative sample on the CAP; consequently, cutoff scores need to be empirically established for adolescents. Additional analyses indicated that a history of abuse, as well as a history of witnessing violence, are associated with a high potential for abuse.  相似文献   
977.
978.
Although the formal institutional structure that defines the temporal order of play in a policy game between the Congress and President ought to provide Congress with agenda power, the President is traditionally treated as the dominant player in this relationship. We show that if the President can make clear-cut commitments, presidential commitment can counter the dominance hierarchy and the complexion of equilibrium outcomes. Thus, the details of political interactions (in particular, the possibilities for commitment) may be as important as the formal specification of institutional structure.We thank Peter Aranson, David Austen-Smith, Ed Campos, Gerry Faulhaber, Art Frank, Ken Koford, William Riker, Janet Pack, the anonymous referees, and seminar participants at the University of Delaware, the University of Pennsylvania, and the University of Rochester for helpful comments, subject to the usual caveat. We also thank Joel Friedlander and Harold Dichter for research assistance.  相似文献   
979.
Prepared as a response to Frey and Eichenberger's Anomalies in Political Economy. We thank Gordon Tullock for helpful discussions. This work was partially supported by the Taylor Experimental Laboratory at Washington University.  相似文献   
980.
It is widely believed that electoral pressures cause legislators to favor government spending programs. This electoral theory of spending is shown to encompass two core hypotheses: (1) the electoral consequences hypothesis, which states that support for spending programs improves the representative's electoral showing; and (2) the legislator insecurity hypothesis, which states that greater electoral insecurity leads representatives to be more in favor of spending programs. A test of these ideas using spending scores for U.S. representatives in 1986 finds that neither hypothesis is supported by the data.  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