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   407篇
  免费   43篇
各国政治   17篇
工人农民   65篇
世界政治   21篇
外交国际关系   22篇
法律   245篇
中国政治   11篇
政治理论   69篇
  2023年   8篇
  2022年   7篇
  2021年   9篇
  2020年   14篇
  2019年   26篇
  2018年   38篇
  2017年   34篇
  2016年   36篇
  2015年   15篇
  2014年   26篇
  2013年   58篇
  2012年   11篇
  2011年   15篇
  2010年   8篇
  2009年   20篇
  2008年   16篇
  2007年   11篇
  2006年   8篇
  2005年   11篇
  2004年   10篇
  2003年   9篇
  2002年   11篇
  2001年   2篇
  2000年   4篇
  1998年   2篇
  1997年   3篇
  1996年   2篇
  1995年   2篇
  1994年   1篇
  1993年   3篇
  1992年   4篇
  1991年   2篇
  1990年   1篇
  1989年   1篇
  1987年   4篇
  1986年   4篇
  1985年   2篇
  1983年   3篇
  1982年   1篇
  1980年   1篇
  1978年   1篇
  1976年   2篇
  1974年   1篇
  1968年   2篇
  1966年   1篇
排序方式: 共有450条查询结果,搜索用时 15 毫秒
151.
This research examines the utility of patella outline shape for matching 3D scans of patellae to knee radiographs using elliptical Fourier analysis and subjective methods of human visual comparison of patellae across radiographs for identification purposes. Repeat radiographs were captured of cadaver's knees for visual comparison before patellae were extracted and skeletonized for quantitative comparisons. Quantitative methods provided significant narrowing down of the candidate pool to just a few potential matches (<5% of original sample), while the human analysts showed high capacity for correctly matching radiographs, irrespective of educational level (positive predictive value = 99.8%). The successful computerized matching based on a single quantified patella trait (outline shape) helps explain the potency achieved by subjective visual examination. This work adds to a growing body of studies demonstrating the value of single isolated infracranial bones for human identification via radiographic comparison.  相似文献   
152.
In a country (the UK) where huge personal investment is required to undertake legal education and training, it is right that an ever-increasing emphasis is placed on student satisfaction. Keeping students engaged is a key priority for universities and technology has a large role to play in this, whether in the context of face-to-face, wholly online or blended learning. The debate around where the line is drawn between engagement and entertainment rumbles on. Challenges exist in relation to information/digital and multimodal literacies, but there is much scope for innovation in teaching and learning thanks to emerging technologies. The article looks at ways in which those teaching in law could be inspired by other disciplines and methodologies, embedding literacies commonly dealt with outside the faculty, by librarians, technologists and designers within their curriculum.  相似文献   
153.
The Hennepin County Co‐Parent Court Project was a 3‐year demonstration project for unmarried co‐parents. The goal of the project was to remove barriers to co‐parenting in low‐income, unmarried parents. The Co‐Parent Court Project encompassed a number of services, including educational workshops, individual case management, parenting plans, legal mediation, and, if needed, supports and treatment for domestic violence. There are published articles that highlight the participant outcomes of the Co‐Parent Project. This article, however, focuses on the background for why this project was developed, components of this project, and lessons learned from implementation.  相似文献   
154.
155.
This article argues that, contrary to the assumptions of international relations scholars, policymakers, and the general public, states do not engage in oil wars. A twofold strategy is employed to support this assertion. First, the article scrutinizes the logical underpinnings of oil war claims, arguing that proponents have underestimated the obstacles to seizing and exploiting foreign resources and, consequently, exaggerated the likelihood of oil wars. Second, the article examines four conflicts that are commonly identified as international oil wars: Japan's attack on the Dutch East Indies in World War II, Iraq's invasion of Kuwait, the Iran--Iraq War, and the Chaco War between Bolivia and Paraguay. It finds that the desire to control additional oil resources was not the fundamental cause of aggression in any of these conflicts. In the latter two cases, aggression was unconnected to oil interests. In the former, states fought for their survival, not for an oil prize.  相似文献   
156.
Emily Thorson 《政治交往》2016,33(3):460-480
Across three separate experiments, I find that exposure to negative political information continues to shape attitudes even after the information has been effectively discredited. I call these effects “belief echoes.” Results suggest that belief echoes can be created through an automatic or deliberative process. Belief echoes occur even when the misinformation is corrected immediately, the “gold standard” of journalistic fact-checking. The existence of belief echoes raises ethical concerns about journalists’ and fact-checking organizations’ efforts to publicly correct false claims.  相似文献   
157.
This study examined factors associated with youth remaining in extended foster care. Cohorts of youth in care in California at age 17 years were defined for the period from 2003–2012. Multivariable generalized linear models documented factors associated with remaining in care through age 19. Findings indicate that: a) the population of youth in care at age 17 has declined over time; b) youth in care at age 17 in 2012 were qualitatively different from those a decade earlier; c) a larger proportion of youth who do not exit to permanency are remaining in extended foster care; and d) although the characteristics of youth who remain in foster care as non-minor dependents continue to vary relative to those who age out, differences have diminished. Findings highlight the potential to target subgroups of youth who may benefit from the extension of care but are remaining in care at lower rates.  相似文献   
158.

Objectives

To conduct a meta-analytic review of selective and indicated mentoring interventions for effects for youth at risk on delinquency and key associated outcomes (aggression, drug use, academic functioning). We also undertook the first systematic evaluation of intervention implementation features and organization and tested for effects of theorized key processes of mentor program effects.

Methods

Campbell Collaboration review inclusion criteria and procedures were used to search and evaluate the literature. Criteria included a sample defined as at risk for delinquency due to individual behavior such as aggression or conduct problems or environmental characteristics such as residence in a high-crime community. Studies were required to be random assignment or strong quasi-experimental design. Of 163 identified studies published from 1970–2011, 46 met criteria for inclusion.

Results

Mean effects sizes were significant and positive for each outcome category (ranging from d?=?0.11 for academic achievement to d?=?0.29 for aggression). Heterogeneity in effect sizes was noted for all four outcomes. Stronger effects resulted when mentor motivation was professional development but not by other implementation features. Significant improvements in effects were found when advocacy and emotional support mentoring processes were emphasized.

Conclusions

This popular approach has significant impact on delinquency and associated outcomes for youth at risk for delinquency. While evidencing some features may relate to effects, the body of literature is remarkably lacking in details about specific program features and procedures. This persistent state of limited reporting seriously impedes understanding about how mentoring is beneficial and ability to maximize its utility.  相似文献   
159.
Journal of Youth and Adolescence - Discrepancies in multi-informant reports of parenting practices represent a meaningful clinical construct that can be harnessed to predict adolescent mental...  相似文献   
160.
This paper summarises pilot work by Irise International to develop an acceptable and replicable solution to menstrual hygiene management (MHM) in East Africa based around the manufacture of a reusable pad. The paper presents a theoretical justification for the approach and the results of pilot work used to develop it, including baseline menstrual hygiene practices and their relationship to school absenteeism in schoolgirls in western Kenya, the short-term impact of training girls to make a reusable product on school absenteeism using a partial preference, parallel group randomised control trial, and an assessment of the acceptability of the approach.  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