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   6095篇
  免费   237篇
各国政治   427篇
工人农民   181篇
世界政治   618篇
外交国际关系   440篇
法律   2548篇
中国政治   50篇
政治理论   1997篇
综合类   71篇
  2023年   41篇
  2022年   26篇
  2021年   54篇
  2020年   103篇
  2019年   149篇
  2018年   166篇
  2017年   194篇
  2016年   199篇
  2015年   115篇
  2014年   172篇
  2013年   1030篇
  2012年   170篇
  2011年   175篇
  2010年   173篇
  2009年   180篇
  2008年   158篇
  2007年   218篇
  2006年   190篇
  2005年   225篇
  2004年   228篇
  2003年   209篇
  2002年   226篇
  2001年   120篇
  2000年   116篇
  1999年   98篇
  1998年   90篇
  1997年   93篇
  1996年   89篇
  1995年   92篇
  1994年   93篇
  1993年   78篇
  1992年   84篇
  1991年   91篇
  1990年   62篇
  1989年   65篇
  1988年   64篇
  1987年   63篇
  1986年   67篇
  1985年   62篇
  1984年   53篇
  1983年   62篇
  1982年   48篇
  1981年   55篇
  1980年   38篇
  1979年   37篇
  1978年   32篇
  1977年   33篇
  1976年   30篇
  1974年   15篇
  1967年   14篇
排序方式: 共有6332条查询结果,搜索用时 31 毫秒
231.

There is strong evidence that chronic, systemic inflammation hastens onset of the diseases of old age that ultimately lead to death. Importantly, several studies suggest that childhood adversity predicts chronic inflammation. Unfortunately, this research has been plagued by retrospective reports of childhood adversity, an absence of controls for adult stressors, and a failure to investigate various competing models of the link between childhood adversity and chronic inflammation. The present study was designed to address these limitations. Using 18 years of data collected from 413 African Americans (58% female) included in the Family and Community Health Study, hierarchical regression analyses provided support for a nuanced early life sensitivity explanation for the link between early adversity and adult chronic inflammation. Controlling for health risk behaviors and adult SES, late childhood (ages 10–12) adversity amplified the association between adult adversity (age 29) and chronic inflammation. This interaction operated in a domain-specific fashion. Harsh parenting amplified the relation between intimate partner hostility and inflammation, whereas early discrimination amplified the relation between adult discrimination and inflammation. These findings suggest that individuals may be primed to respond physiologically to adverse adult circumstances that resemble those experienced earlier in life.

  相似文献   
232.
Journal of Youth and Adolescence - School-based mental health intervention programs have demonstrated efficacy for the prevention and reduction of depressive symptoms, though the effect tends to be...  相似文献   
233.
Following 9/11, Al-Qaeda-orchestrated plots were considered the greatest threat to Western security and sparked the coalition’s war on terror. Close to a decade later, the post-9/11 threat landscape had shifted significantly, leading then CIA-director Leon Panetta to describe “the lone-wolf strategy” as the main threat to the United States. Subsequent lone-actor attacks across the West, including the cities of London, Nice, Berlin, Stockholm, Ottawa and Charleston, further entrenched perspectives of a transformed security landscape in the “after, after-9/11” world. The unique features of lone-actor terrorism, including the challenges of interdiction and potential of copycat attacks, mean that the media is likely to play a particularly important role in shaping the reactions of the public, affected communities and copycat attackers. This article presents findings from a content analysis of British and Danish newspaper reporting of lone-actor terrorism between January 2010 and February 2015. The study highlights that lone-actor terrorism is framed, with national variations, as a significant and increasing problem in both countries; that Islamist lone-actors are often represented as distinct from far-right lone-actors; and that some reporting, despite relatively limited amplification of specific terrorist messages, potentially aids lone-actors by detailing state vulnerabilities to attacks.  相似文献   
234.
Public management networks (PMNs) continue to proliferate as governance becomes more complex, and so does the need to hold them accountable. Agency and collaboration theories provide a solid foundation, but additional constructs are necessary to adapt to this dynamic era. Building from Bovens et al. (2008), the authors offer an ecological framework of third-party accountability that incorporates a number of prominent accountability theories under the same construct. Employing a mixed-methods research design that examines eight local PMNs in the Chicago region, the study finds that an exemplar accountability mechanism—additional cost monitoring—occurs more often in situations predicted by the framework. Additionally, qualitative interviews of network participants suggest that cost structures can differ by network type, which is verified quantitatively.  相似文献   
235.
According to the sorting model of education, the impact of education on civic engagement is relative, rather than absolute. Education correlates with greater engagement because it is a marker of social status; the degree of status conferred by your level of education is determined by the average level of education within your environment. This article tests the sorting model by paying strict heed to its assumptions. The analysis confirms the model, but considerably narrows its reach. Sorting applies only to one particular type (electoral activity), only when the educational environment accounts for variation across age and place, and only when one models the interactive relationship between education at the individual and environmental levels. Furthermore, sorting applies more to men than women. The same analytical framework demonstrates that being in a more highly educated environment amplifies the relationship between education and democratic enlightenment (political knowledge and tolerance).  相似文献   
236.
Many political observers view get-out-the-vote (GOTV) mobilization drives as a way to increase turnout among chronic nonvoters. However, such a strategy assumes that GOTV efforts are effective at increasing turnout in this population, and the extant research offers contradictory evidence regarding the empirical validity of this assumption. We propose a model where only those citizens whose propensity to vote is near the indifference threshold are mobilized to vote and the threshold is determined by the general interest in the election. Our three-parameter model reconciles prior inconsistent empirical results and argues that low-propensity voters can be effectively mobilized only in high-turnout elections. The model is tested on 11 randomized face-to-face voter mobilization field experiments in which we specifically analyze whether subjects' baseline propensity to vote conditions the effectiveness of door-to-door GOTV canvassing. The evidence is consistent with the model and suggests that face-to-face mobilization is better at stimulating turnout among low-propensity voters in prominent elections than it is in quiescent ones .  相似文献   
237.
Does public policy respond to public opinion? Previous research suggests dynamic representation occurs in the aggregate. Yet, most of the evidence for policy response is limited to the policy intentions of elected officials on issues related to more or less government spending. We examine policy response to an alternative dimension of public mood, public preferences for more or less punitive criminal justice policies, using multiple indicators of policy from various stages of the policy-making process. Criminal justice policy should be responsive to public preferences given the public’s concern about crime and the negative social construction of criminals. Thus, there is an electoral incentive for public officials to respond to public preferences along this alternative dimension of public sentiment regarding criminal justice policy. We estimate a DYMIMIC model of federal criminal justice policy as a function of the multiple dimensions of public policy mood using Kalman filtering. The results indicate that criminal justice policy responds to the second, not the first, dimension of public mood. We find evidence that policy-makers at multiple stages of the policy process are able to differentiate among multiple signals from the public and respond appropriately. The results present a more sophisticated portrait of democratic responsiveness.  相似文献   
238.
There is growing interest in the application of citizen participation within all areas of public sector service development, where it is increasingly promoted as a significant strand of post-neoliberal policy concerned with re-imagining citizenship and more participatory forms of citizen/consumer engagement. The application of such a perspective within health services, via co-production, has both beneficial, but also problematic implications for the organisation of such services, for professional practice and education. Given the disappointing results in increasing consumer involvement in health services via 'choice' and 'voice' participation strategies, the question of how the more challenging approach of co-production will fare needs to be addressed. The article discusses the possibilities and challenges of system-wide co-production for health. It identifies the discourse and practice contours of co-production, differentiating co-production from other health consumer-led approaches. Finally, it identifies issues critically related to the successful implementation of co-production where additional theorisation and research are required.  相似文献   
239.
240.
The percentage of Israelis killed by terrorism is higher than in any other democracy. The article analyzes the threats Israel has faced, the impact terrorism has had on Israel, and the counter-terrorism policies Israel has adopted. Terrorism has had a decisive effect on Israeli elections and national security decisions, but not the economy. Israeli counter-terrorism has often been conducted without a coherent overall policy, has failed to reflect and conflicted with broader objectives, and has greatly undermined Israel's international standing. Conversely, it has enabled Israel to live in relative security and thrive, and provided its leaders with the latitude to pursue various policies, including peace, should they wish to do so.  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