全文获取类型
收费全文 | 23624篇 |
免费 | 780篇 |
国内免费 | 5篇 |
专业分类
各国政治 | 1073篇 |
工人农民 | 1034篇 |
世界政治 | 1529篇 |
外交国际关系 | 779篇 |
法律 | 14964篇 |
中国共产党 | 9篇 |
中国政治 | 199篇 |
政治理论 | 4581篇 |
综合类 | 241篇 |
出版年
2020年 | 303篇 |
2019年 | 390篇 |
2018年 | 497篇 |
2017年 | 581篇 |
2016年 | 575篇 |
2015年 | 414篇 |
2014年 | 428篇 |
2013年 | 2352篇 |
2012年 | 632篇 |
2011年 | 660篇 |
2010年 | 551篇 |
2009年 | 582篇 |
2008年 | 701篇 |
2007年 | 712篇 |
2006年 | 727篇 |
2005年 | 649篇 |
2004年 | 642篇 |
2003年 | 649篇 |
2002年 | 587篇 |
2001年 | 853篇 |
2000年 | 742篇 |
1999年 | 616篇 |
1998年 | 349篇 |
1997年 | 274篇 |
1996年 | 293篇 |
1995年 | 262篇 |
1994年 | 281篇 |
1993年 | 300篇 |
1992年 | 470篇 |
1991年 | 498篇 |
1990年 | 480篇 |
1989年 | 427篇 |
1988年 | 448篇 |
1987年 | 427篇 |
1986年 | 467篇 |
1985年 | 411篇 |
1984年 | 371篇 |
1983年 | 362篇 |
1982年 | 256篇 |
1981年 | 277篇 |
1980年 | 190篇 |
1979年 | 269篇 |
1978年 | 192篇 |
1977年 | 174篇 |
1976年 | 152篇 |
1975年 | 176篇 |
1974年 | 185篇 |
1973年 | 164篇 |
1972年 | 152篇 |
1969年 | 133篇 |
排序方式: 共有10000条查询结果,搜索用时 343 毫秒
911.
Florian Justwan Bert Baumgaertner Juliet E. Carlisle April K. Clark Michael Clark 《Journal of Elections, Public Opinion & Parties》2018,28(4):424-442
There is widespread evidence that individuals select information that supports their convictions and worldviews. This behavior yields the formation of echo chambers – environments in which an individual’s own political beliefs are repeated and amplified and dissenting opinions are screened out. Recent research demonstrates that social networking sites such as Facebook or Twitter can facilitate this selection into homogenous networks. Using data from a representative nation-wide online survey, we consider the degree to which respondents’ social media networks resemble virtual echo chambers. We then analyze the effect of these social media echo chambers on satisfaction with democracy among Democrats and Republicans in the aftermath of the 2016 US elections. Our findings reveal that virtual echo chambers boost democratic satisfaction among Republicans but they do not have an effect on system support by self-identified Democrats. Our paper therefore adds to a growing literature linking online behaviors to mass attitudes about politics. 相似文献
912.
Leslie E. Sponsel 《Journal of Peace Education》2018,15(3):267-287
ABSTRACTGlenn D. Paige pioneered in the revolutionary development of a far-reaching transformation of science, academia, and society from a killing to a nonkilling worldview, values, and attitudes. For six decades, anthropology has been accumulating scientific empirical evidence and rational arguments demonstrating that nonkilling societies exist, thereby rebutting the simplistic biological determinist myth that human nature inevitably and universally generates violence and war. Nevertheless, Hobbessians persist in their echo chamber advertising and celebrating the innate depravity of the human species as apologists for war and peace resisters. This systemic bias operates in synergy with the American industrial-military-media-academic complex and culture, the latter exemplified by a revealing comparison of war and football. With great intellectual courage and creative thinking, Paige critically challenges the anachronistic Hobbesian paradigm and offers a far more compelling and positive alternative for sustainable peace in the future. 相似文献
913.
Research shows protective factors that mitigate risks for juvenile delinquency can also support the community reentry of incarcerated youths and deter future offending. Family engagement, educational attainment, and secure employment are widely accepted as important protective factors to prevent problematic behavior. Studies suggest these same protective factors are crucial for incarcerated youths and should be an integral part of reentry planning to improve post-release outcomes. Nevertheless, limited research exists on the association between these factors and the value of family involvement in reentry planning for incarcerated youths. This study addresses this gap by examining how increased family contact affects the likelihood of instituting education and employment reentry plans among youths in custody. Data were obtained from the Survey of Youth in Residential Placement (SYRP) that provides information on juvenile offenders in confinement. The SYRP is the first nationally representative cross-sectional survey to gather information directly from youths 10–20 years old in custody (N=7,073). Analyses were conducted using a sequence of regression models to test the relationship between the frequency of family contact and whether a youth had a plan for education or employment upon release. Results reflect that youths with increased family contact were one and a half times more likely to have both educational and employment reentry plans in place relative to youths with no family contact. Findings inform practice and policy to advocate for family involvement with youth in confinement, and further suggest that family plays a decisive role in preparing incarcerated youths for success upon release. 相似文献
914.
The impact of institutions on the economic vote stands as a well‐established proposition for the advanced democracies of Europe. We know less, however, regarding the institutional effects on the economic vote in the developing democracies of Latin America. Carrying out an analysis of presidential elections in 18 Latin American countries, we offer evidence that the usual Eurocentric conceptualization of the clarity of responsibility is not ideal for understanding the economic vote in this region. There does exist a powerful effect of institutions on the economic vote within Latin American democracies, but one uniquely associated with its presidential regimes and dynamic party systems. Rules for these elections—such as concurrence, term limits, and second‐round voting—suggest that we should reconceptualize the notion of the clarity of responsibility in Latin America, focusing more on individuals in power and their constraints, and less on the political parties from which they hail. 相似文献
915.
Raymond B. Firehock John A. Gentry Julia W. Rogers James M. Simon Jr 《Intelligence & National Security》2018,33(5):774-783
The literature on intelligence analysis contains many references to the ‘review process’, the mechanism by which analysts’ drafts are converted into corporate products. Analysts whose drafts consistently navigate the process quickly and smoothly are regarded as star performers. Divining the practical meaning of organizational definitions of ‘good’ analysis and the personal preferences of specific senior reviewers is not easy, however. Analysts occasionally commit their understanding of reviewers’ stylistic preferences to paper, effectively providing style guides to help others. This essay presents and explains the development and implications of one such guide, which was designed to help analysts in CIA’s Office of Strategic Research in the early 1970s. 相似文献
916.
Welton Chang Elissabeth Berdini David R. Mandel Philip E. Tetlock 《Intelligence & National Security》2018,33(3):337-356
Structured analytic techniques (SATs) are intended to improve intelligence analysis by checking the two canonical sources of error: systematic biases and random noise. Although both goals are achievable, no one knows how close the current generation of SATs comes to achieving either of them. We identify two root problems: (1) SATs treat bipolar biases as unipolar. As a result, we lack metrics for gauging possible over-shooting—and have no way of knowing when SATs that focus on suppressing one bias (e.g., over-confidence) are triggering the opposing bias (e.g., under-confidence); (2) SATs tacitly assume that problem decomposition (e.g., breaking reasoning into rows and columns of matrices corresponding to hypotheses and evidence) is a sound means of reducing noise in assessments. But no one has ever actually tested whether decomposition is adding or subtracting noise from the analytic process—and there are good reasons for suspecting that decomposition will, on balance, degrade the reliability of analytic judgment. The central shortcoming is that SATs have not been subject to sustained scientific of the sort that could reveal when they are helping or harming the cause of delivering accurate assessments of the world to the policy community. 相似文献
917.
Throughout his career as a literary critic, Alfred Kazin wrote often and with sympathy and insight about Theodore Dreiser, one of the most powerful, panoramic, and compassionate novelists in American literary history. Kazin was an intense reader and writer, committed in his books, essays, and reviews to connecting with and describing the personality of each author he examined. His interpretive work on Dreiser illuminates what it means to be a literary critic and teacher. When we read Kazin in the midst of twenty-first century theory, ideology, and professionalism, we realize all the more clearly the goal in his literary criticism that he aimed for, achieved, and represented—and that now is missing from literary education and experience. 相似文献
918.
This essay reviews David Pyrooz and James Densley’s “On Public Protest, Violence, and Street Gangs” and raises new questions about the ways in which Antifa is similar to and different from social movements; the processes by which “factions within Antifa” become gangs; and the dynamic nature of relationships and interactions between and among violent and non-violent segments. It concludes with a note about the everchanging nature of social life and importance of flexibility in the design and execution of research in capturing this reality. 相似文献
919.
Although interest in research utilization in the policy process has grown, how advocates strategically deploy different types of evidence to influence lawmakers remains not well understood. In this paper, we draw on the Advocacy Coalition Framework and the Narrative Policy Framework to show how various types of evidence—from empirical findings to personal anecdotes—were utilized by advocates during the 2 years leading to the passage of California’s historic 2010 law to extend foster care. The result was a generous and flexible entitlement policy passed with bipartisan support in the context of a recession, a state budget deficit, and an ambivalent governor. We find that leaders of a diverse advocacy coalition strategically showcased different types of evidence at specific moments in the legislative process. Each evidence type can be tied to a specific narrative element and strategy. Advocates first used research evidence to convince lawmakers of the policy’s effectiveness, then used professional expertise and benefit-cost analysis to convince them it would come at an acceptable cost, and finally used personal narratives to motivate them to act. We conclude that though benefit-cost analyses play an integral role in policymaking during a time of austerity, advocacy coalitions may still benefit from personal stories that lend emotional potency and urgency. 相似文献
920.