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   4419篇
  免费   116篇
各国政治   324篇
工人农民   164篇
世界政治   384篇
外交国际关系   258篇
法律   1923篇
中国政治   18篇
政治理论   1410篇
综合类   54篇
  2021年   23篇
  2020年   57篇
  2019年   65篇
  2018年   82篇
  2017年   102篇
  2016年   134篇
  2015年   72篇
  2014年   102篇
  2013年   735篇
  2012年   93篇
  2011年   131篇
  2010年   130篇
  2009年   122篇
  2008年   142篇
  2007年   164篇
  2006年   129篇
  2005年   120篇
  2004年   130篇
  2003年   139篇
  2002年   188篇
  2001年   100篇
  2000年   103篇
  1999年   96篇
  1998年   76篇
  1997年   88篇
  1996年   64篇
  1995年   53篇
  1994年   49篇
  1993年   56篇
  1992年   62篇
  1991年   62篇
  1990年   48篇
  1989年   65篇
  1988年   52篇
  1987年   49篇
  1986年   67篇
  1985年   55篇
  1984年   35篇
  1983年   60篇
  1982年   46篇
  1981年   36篇
  1980年   37篇
  1979年   32篇
  1978年   28篇
  1977年   29篇
  1976年   34篇
  1975年   23篇
  1974年   34篇
  1972年   19篇
  1971年   17篇
排序方式: 共有4535条查询结果,搜索用时 31 毫秒
31.
A number of recent studies have explored the consequences ofinterracial peer effects on the academic and social performanceof minority students. This article contributes to that discussion,focusing, however, on perceptions rather than behaviors. Theanalysis suggests that exposure to white peers is associatedwith declining perceptions of racial justice among black andLatino high school students. While cautioning against causalinterpretations of this finding, the article suggests that theintegrationist aims of Brown v. Board of Education will notbe satisfied without more thoughtful and vigorous desegregationefforts.  相似文献   
32.
33.
This paper examines nine cases of “spinback,” the flow back to laboratories of technical advantage from technology transfer activities. The benefits revealed in the cases are discussed and assessed for their value to the participating laboratories and the scientists involved. The objective of this study was to explore and test the feasibility of undertaking a comprehensive study of the value of spinback in order to encourage support for technology transfer activities by middle management in a laboratory. Spinback is defined as the phenomenon by which scientists’ and engineers’ participation in technology utilization activities results in a technically valuable flow back to their laboratories or organizations, thereby increasing or improving techical capability. It was anticipated that this exploration would provide evidence that the phenomenon does occur, with important consequences for the organization.  相似文献   
34.
35.
36.
37.
Correctional facilities are increasingly burdened with mentally disordered offenders and are faced with the formidable task of effectively screening inmates for major mental disorders and suicide potential. Teplin and Swartz (1989) developed the Referral Decision Scale (RDS) as a rapid screen for schizophrenia and major mood disorders in jail populations. However, more recent research by Hart, Roesch, Corrado, and Cox (1993) has called into question the effectiveness of the RDS. In this study, we examined the convergent and discriminant validity of the RDS with the Schedule of Affective Disorders and Schizophrenia—Change Version (SADS-C) and the Personality Assessment Inventory (PAI) on a sample of 108 mentally disordered inmates. The RDS provided moderate evidence of convergent validity but failed to demonstrate acceptable discriminant validity, because of high intercorrelations on RDS subscales (heterotrait-monomethod coefficients). In comparison, the SADS-C yielded similar evidence of convergent validity and excellent discriminant validity.The authors would like to thank the Research Opportunities Program, University of North Texas for its grant support and Captain James Moore for his active cooperation.Tarrant County Mental Health and Mental Retardation Services.  相似文献   
38.
The debate on the advantages and disadvantages of upgrading the United Nations Environment Programme to a 'world environment organisation' (WEO) has gained momentum in both academe and politics. This article contends that a WEO would further the interests especially of developing countries, because it would provide them, first, a high-level forum to unite their individual bargaining power against the major industrialised countries. Second, a WEO would assist Southern efforts to garner international support for environmental programmes in regions and sectors that are increasingly bypassed by economic globalisation. Third, a WEO would create a locus to politically institutionalise the influence of non-governmental lobbyists in a way that increases the balance of opinions and perspectives. The article then addresses special challenges and caveats for developing countries in the upcoming negotiation process, in particular whether an upgraded UNEP would address only 'global' issues, thus absolving the international community from assisting developing countries in mitigating the more pressing local environmental issues in the South; whether the new body would have powerful sanctioning mechanisms, which might disproportionally affect developing countries; and what decision-making procedures the new body would have.  相似文献   
39.
40.
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