全文获取类型
收费全文 | 523篇 |
免费 | 25篇 |
专业分类
各国政治 | 18篇 |
工人农民 | 71篇 |
世界政治 | 51篇 |
外交国际关系 | 107篇 |
法律 | 217篇 |
中国政治 | 5篇 |
政治理论 | 79篇 |
出版年
2023年 | 4篇 |
2021年 | 2篇 |
2020年 | 7篇 |
2019年 | 9篇 |
2018年 | 13篇 |
2017年 | 12篇 |
2016年 | 18篇 |
2015年 | 11篇 |
2014年 | 11篇 |
2013年 | 69篇 |
2012年 | 15篇 |
2011年 | 22篇 |
2010年 | 15篇 |
2009年 | 19篇 |
2008年 | 26篇 |
2007年 | 43篇 |
2006年 | 35篇 |
2005年 | 26篇 |
2004年 | 24篇 |
2003年 | 18篇 |
2002年 | 18篇 |
2001年 | 7篇 |
2000年 | 13篇 |
1999年 | 7篇 |
1998年 | 7篇 |
1997年 | 7篇 |
1996年 | 7篇 |
1995年 | 5篇 |
1994年 | 6篇 |
1993年 | 10篇 |
1992年 | 9篇 |
1991年 | 4篇 |
1990年 | 7篇 |
1989年 | 2篇 |
1988年 | 3篇 |
1987年 | 3篇 |
1986年 | 1篇 |
1985年 | 5篇 |
1984年 | 2篇 |
1983年 | 2篇 |
1982年 | 2篇 |
1981年 | 8篇 |
1980年 | 1篇 |
1979年 | 5篇 |
1978年 | 3篇 |
1977年 | 1篇 |
1974年 | 1篇 |
1973年 | 3篇 |
排序方式: 共有548条查询结果,搜索用时 15 毫秒
451.
Developmental taxonomies of crime disagree on whether distinctive offender trajectories are related to common or unique risks.
This study examined childhood risks of differing arrest trajectories across childhood through early adulthood (from ages 10–11
to 26–27 years) that were identified in prior work for 203 at-risk, predominantly Caucasian young men. Multivariate analyses
revealed that when both distal (childhood risk factors) and proximal risk factors (deviant peer association as a time-varying
covariate) were included in the model, relatively few childhood risk factors (assessed at age 9–10 years) discriminated the
chronic offender groups from rare offenders (i.e., child antisocial behavior, child attention problems, parents’ antisocial
behavior). Rather, deviant peer association was significantly related to levels of offending within each trajectory group (i.e., chronic and rare offender groups). No predictor differentially predicted membership in the two
chronic groups, supporting the linear gradation argument. Theoretical and prevention implications are discussed. 相似文献
452.
Wuchen Zhang M.S. Deborah A. Kosiorek M.S. Amy N. Brodeur M.S. 《Journal of forensic sciences》2020,65(3):784-790
Plastic fingerprint impressions found at crime scenes are often too delicate for collection, leaving photography as the best option for documentation. However, traditional photography techniques can be inadequate in documenting minute 3-D details due to limitations of the camera and lighting conditions. This study investigated the feasibility of applying commercially available structured-light 3-D scanners in the documentation of plastic prints. Attempts were made to develop a procedure to extract curvature features from 3-D scanned fingerprints and flatten the friction ridge features into two-dimensional (2-D) images to allow direct comparison with the traditional photography in the CSIpix® Matcher and NFIQ 2.0 software. Two 3-D scanners were evaluated a Dentsply Sirona inEos X5® and an Artec Space Spider. In this study, 3-D scanners demonstrated robustness as well as efficiency in the collection of plastic fingerprint impressions in select substrates. One of the developed methods utilizing a discrete geometry operator and convexity features outperformed traditional photography, achieving higher software detection scores in minutiae count and match quality, while traditional photography could not always capture enough high-quality minutiae for comparisons, even after digital enhancement. 相似文献
453.
454.
Deborah Lupton 《Economy and Society》2016,45(1):101-122
The concept of self-tracking has recently begun to emerge in discussions of ways in which people can record specific features of their lives, often using digital technologies, to monitor, evaluate and optimize themselves. There is evidence that the personal data that are generated by the digital surveillance of individuals (dataveillance) are now used by a range of actors and agencies in diverse contexts. This paper examines the ‘function creep’ of self-tracking by outlining five modes that have emerged: private, communal, pushed, imposed and exploited. The analysis draws upon theoretical perspectives on concepts of selfhood, citizenship, dataveillance and the global digital data economy in discussing the wider socio-cultural implications of the emergence and development of these modes of self-tracking. 相似文献
455.
456.
457.
458.
459.
460.
Deborah A. Levesque Janet L. Johnson Janice M. Prochaska 《Journal of school violence》2017,16(4):376-385
This article describes the theoretical foundation, development, and feasibility testing of an online, evidence-based intervention for teen dating violence prevention designed for dissemination. Teen Choices, a program for healthy, nonviolent relationships, relies on the transtheoretical model of behavior change and expert system technology to deliver assessments and feedback matched to stage of change for using healthy relationship skills. The program also tailors feedback to dating status, risk level, and other key characteristics. Ninety-nine students from high schools in Tennessee and Rhode Island completed a Teen Choices session and 97 completed an 11-item acceptability evaluation. Of participants, 100% completed the intervention session as intended. Evaluations of the program were favorable: 88.7% agreed the program feedback was easy to understand, and 86.7% agreed that the program could help people develop healthier relationships. Findings provide encouraging evidence of the acceptability and feasibility of this approach to dating violence prevention. 相似文献