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   776篇
  免费   31篇
各国政治   34篇
工人农民   62篇
世界政治   51篇
外交国际关系   43篇
法律   378篇
中国政治   7篇
政治理论   215篇
综合类   17篇
  2022年   3篇
  2021年   7篇
  2020年   12篇
  2019年   14篇
  2018年   22篇
  2017年   34篇
  2016年   31篇
  2015年   18篇
  2014年   34篇
  2013年   129篇
  2012年   23篇
  2011年   30篇
  2010年   16篇
  2009年   13篇
  2008年   23篇
  2007年   33篇
  2006年   27篇
  2005年   21篇
  2004年   25篇
  2003年   22篇
  2002年   12篇
  2001年   10篇
  2000年   19篇
  1999年   10篇
  1998年   8篇
  1997年   10篇
  1996年   7篇
  1995年   9篇
  1994年   9篇
  1993年   8篇
  1992年   5篇
  1991年   11篇
  1990年   8篇
  1989年   11篇
  1988年   10篇
  1987年   4篇
  1986年   6篇
  1985年   9篇
  1984年   10篇
  1983年   9篇
  1982年   9篇
  1981年   12篇
  1980年   11篇
  1979年   9篇
  1978年   5篇
  1977年   6篇
  1976年   6篇
  1973年   4篇
  1972年   3篇
  1971年   3篇
排序方式: 共有807条查询结果,搜索用时 15 毫秒
211.
212.
213.
The NASA Technology Transfer Program has taken on a variety of roles during the past twenty years. This paper briefly reviews these roles. It presents then several organized approaches that could be adopted to maximize the cost/benefit of technology transfer from NASA to the private sector.  相似文献   
214.
The role of the public in US policy making has shifted substantially during the past several decades. This shift is particularly evident in environmental policy, where collaboration among multiple stakeholders is on the rise. Much of the literature on collaborative environmental management emphasizes the need for widespread community involvement, especially from private citizens. Many proponents of collaboration have argued that broad inclusion can lead to better environmental solutions while also establishing legitimacy, building social capital, and overcoming conflicts. Yet such broad inclusion may be costly in terms of time, energy, and resources, and it may not yield the desired results. Thus, a key question is how the breadth of public involvement is linked to collaborative group accomplishments. This study, using watershed groups in Ohio, demonstrates several links between group membership and results. Groups with a broader array of participants tend to excel in watershed plan creation, identifying/prioritizing issues, and group development and maintenance. In addition, groups comprised of a relatively balanced mix of governmental and non-governmental participants are more likely to list planning/research and group development and maintenance results than are groups comprised primarily of non-governmental participants. In contrast, groups with a narrower membership and groups that are composed primarily of non-governmental participants may focus more on pressuring government for policy change.  相似文献   
215.
Julia Gillard replaced Kevin Rudd as prime minister and Labor leader in June 2010. She describes her government as being firmly in the “tradition of Labor”. To locate it in the broad ideological continuum of Labor governments, and to test the suggestion that she is travelling a reform path set largely by the Hawke and Keating governments, I analyse the positions taken by Rudd and Gillard on a range of issues, beginning with economic policy. On social issues Gillard has been even more cautious than Rudd and this reflects her analysis of the electoral impact of Howard's Culture Wars. Her focus on educational opportunity suggests she is the logical successor to Gough Whitlam, Bob Hawke and Paul Keating. As Labor leaders, Rudd and Gillard each embraced market‐reliant policy positions. Rudd even claimed to be an “fiscal conservative”. However, with Rudd venturing a critique of neo‐liberalism, it is Gillard whose stance is closer to Hawke and Keating's “economic rationalism”. Indeed Gillard's insistence upon the centrality of markets leaves Labor with a dilemma: if there are no significant problems with relying on markets then why does Australia need a social democratic party?  相似文献   
216.
Three commercially available integrated rapid DNA instruments were tested as a part of a rapid DNA maturity assessment in July of 2018. The assessment was conducted with sets of blinded single-source reference samples provided to participants for testing on the individual rapid platforms within their laboratories. The data were returned to the National Institute of Standards and Technology (NIST) for review and analysis. Both FBI-defined automated review (Rapid DNA Analysis) and manual review (Modified Rapid DNA Analysis) of the datasets were conducted to assess the success of genotyping the 20 Combined DNA Index System (CODIS) core STR loci and full profiles generated by the instruments. Genotype results from the multiple platforms, participating laboratories, and STR typing chemistries were combined into a single analysis. The Rapid DNA Analysis resulted in a success rate of 80% for full profiles (85% for the 20 CODIS core loci) with automated analysis. Modified Rapid DNA Analysis resulted in a success rate of 90% for both the CODIS 20 core loci and full profiles (all attempted loci per chemistry). An analysis of the peak height ratios demonstrated that 95% of all heterozygous alleles were above 59% heterozygote balance. For base-pair sizing precision, the precision was below the standard 0.5 bp deviation for both the ANDE 6C System and the RapidHIT 200.  相似文献   
217.
218.
Most foundational theories of congressional representation were developed during an era of less polarized and less partisan politics. These theories viewed the incumbency advantage as buttressed by the fact that some constituents were willing to support legislators from the opposite party because of their “home styles.” But in an era of policy immoderation in Congress, this perspective leads to an assumption that citizens evaluate their members of Congress based on what those legislators do for them individually, rather than what they do for their districts more broadly. In this paper, we ask whether citizens take the interests of their fellow constituents into account when evaluating their members of Congress. Using both survey data and an experiment, we uncover support for the notion that citizens take a more communal view of representation as at least part of their evaluations of their representatives. This suggests individuals may have a more nuanced understanding of representation than purely self-interested approaches tend to assume.  相似文献   
219.
Prior research has demonstrated that participation in out-of-school time activities is associated with positive and healthy development among adolescents. However, fewer studies have examined how trajectories of participation across multiple activities can impact developmental outcomes. Using data from Wave 3 (approximately Grade 7) through Wave 8 (approximately Grade 12) of the 4-H Study of Positive Youth Development, this study examined patterns of breadth in out-of-school time participation in activities and associated outcomes in positive youth development (PYD), Contribution to self and community, risk behaviors, and depressive symptoms. We assessed 927 students (on average across waves, 65.4 % female) from a relatively racially and ethnically homogeneous sample (about 74 % European American, across waves) with a mean age in Wave 3 of 12.98 years (SD = 0.52). The results indicated that high likelihood of participation in activities was consistently associated with fewer negative outcomes and higher scores on PYD and Contribution, as compared to low likelihood of participation in activities. Changes in the breadth of participation (in particular, moving from a high to a low likelihood of participation) were associated with increased substance use, depressive symptoms, and risk behaviors. Limitations of the current study, implications for future research, and applications to youth programs are discussed.  相似文献   
220.
Abstract

Various Australian politicians have argued for the need to combine ‘hard heads and soft hearts’ in politics. Unfortunately, this article argues that that recognition is not yet fully accepted in Australian political science. While there has been a significant progress, both in terms of the number of senior women in the discipline and the gender content of Australian political science, problems still remain. Unfortunately, some of the issues are still those identified by Carole Pateman in her famous 1981 address as President of the Australian Political Studies Association when she noted both the underrepresentation of women in political science and that there was a tendency to define ‘the political’ in narrow ways that excluded the study of women and issues that were of concern to them. This article will explore why political science has been less open to incorporating feminist insights than some other related disciplines. It will analyse a number of issues regarding the gendering of Australian political science. These include narrow definitions of the ‘political’; a continuing implicit (gendered) prioritising of various fields and approaches as ‘hard’ political science and the denigration of other fields as ‘soft’; and the impact of neo-liberalism and the importance of the ‘political’ as a site for constructions of gender identity. It argues that the continuing resistance to ‘reinventing’ political science to take account of gender is particularly concerning given the potential impact on definitions of research ‘excellence’. The article also identifies some areas where more research needs to be done.  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