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   786篇
  免费   54篇
  840篇
  2024年   2篇
  2023年   9篇
  2022年   3篇
  2021年   12篇
  2020年   21篇
  2019年   22篇
  2018年   28篇
  2017年   29篇
  2016年   38篇
  2015年   21篇
  2014年   30篇
  2013年   115篇
  2012年   46篇
  2011年   43篇
  2010年   37篇
  2009年   37篇
  2008年   42篇
  2007年   46篇
  2006年   26篇
  2005年   29篇
  2004年   34篇
  2003年   27篇
  2002年   29篇
  2001年   12篇
  2000年   8篇
  1999年   10篇
  1998年   6篇
  1997年   5篇
  1996年   5篇
  1995年   7篇
  1994年   2篇
  1993年   5篇
  1992年   6篇
  1991年   7篇
  1990年   3篇
  1989年   5篇
  1988年   2篇
  1987年   3篇
  1986年   5篇
  1985年   6篇
  1984年   5篇
  1983年   1篇
  1982年   2篇
  1981年   3篇
  1980年   3篇
  1974年   1篇
  1973年   1篇
  1971年   1篇
排序方式: 共有840条查询结果,搜索用时 8 毫秒
691.
Researchers have documented that vacant lot greening can reduce community-level crime and violence. Busy Streets Theory (BST) suggests that residents who are involved in the greening process can help to improve physical environments and build social connections that deter crime and violence. Yet few researchers have explored how community engagement in the greening process may affect crime and violence outcomes. We applied BST to test the effects of community-engaged vacant lot greening compared to vacant lots that received either professional mowing or no treatment, on the density of violent crime around study lots. Using mixed effects regression models, we analyzed trends in violent crime density over the summer months from 2016 to 2018 at 2102 street segments in Youngstown, OH. These street segments fell within 150 meters of an intervention parcel that was classified as one of three conditions: community-engaged maintenance, professional mowing, or no treatment (control). We found that street segments in areas receiving community-engaged maintenance or professional mowing experienced greater declines in violent crime density than street segments in areas receiving no treatment, and more decline occurred in the community-engaged condition compared to the professional mow condition. Our findings support BST and suggest that community-engaged greening of vacant lots in postindustrial cities with a concentrated vacancy can reduce crime and violence.  相似文献   
692.
693.
This paper outlines a model that captures the experiences of 28 Senior Officers who have managed some of the most significant police incidents in the UK in the past 5 years. The process for capturing the model rests on ‘pragmatic psychology’ (Fishman, 1999; Alison, West & Goodwill, 2003), a paradigm that recognizes practitioners' experiences as a central component of research and policy development. We utilized a set of connected electronic notebooks to enable each critical incident manager to log their experiences and views of the case that they managed. As each individual logs this information, it is simultaneously distributed to all participants. Thus, information is rapidly shared, stimulating further thought and discussion. Following the initial knowledge‐sharing phase, participants reorder the material into themed categories that can then be scored against specific criteria (in this case ‘impact’ and ‘ease’). This session revealed that senior officers consider a combination of two co‐occurring issues as most significant in defining the ‘criticality’ of the incident: (i) how direct an impact the facet has on the enquiry at hand; and (ii) whether that issue will influence how the service will be judged (by the community, the victims and the media). These issues were perceived as the most complex and difficult to deal with. We argue that this perception is a joint function of perceived lack of control alongside the belief that judgment and blame regarding the incident will ultimately reside with them as managers. Copyright © 2004 John Wiley & Sons, Ltd.  相似文献   
694.
Prior to dissolution, it is likely that couples that become severely distressed first pass through an at-risk stage in which they experience early symptoms of marital deterioration but have not yet suffered irreversible damage to their marriage. It is during this “at-risk” stage when couples might benefit most from early intervention. In response to this need we have developed an indicated intervention program called the Marriage Checkup (MC) based on the principles of motivational interviewing. The current randomized study provides preliminary evidence for the attractiveness, tolerability, efficacy, and mechanisms of change of the MC.  相似文献   
695.
696.
697.
698.
699.
700.
The current study investigated concurrent and prospective associations between emotion-related constructs and loss of control (LOC) eating in adolescents. Community-based females (N?=?588) completed annual self-report assessments of LOC eating, emotional awareness, emotion regulation strategies, and neuroticism from ages 16 to 18 years. Linear regressions and a regression-based multiple mediation model using bootstrapping were computed to examine the relationships among emotion-related constructs and LOC eating frequency. In the concurrent model, age 18 emotional awareness and emotion regulation strategies were associated with age 18 LOC eating, F(6, 416)?=?12.11, p?<?0.001, accounting for 4.5 % of the variance after controlling for demographics, body mass index, and neuroticism, F change?=?10.81, p?<?0.001. In the prospective model, age 17 emotional awareness predicted age 18 LOC eating, F(7, 425)?=?11.67, p?<?0.001, accounting for 1.7 % of unique variance beyond the effects of age 16 LOC eating and age 17 demographics, body mass index, and neuroticism, F change?=?4.26, p?=?0.015. In the multiple mediation model, age 18 emotion regulation strategies mediated the association between age 17 neuroticism and age 18 LOC eating, indirect effect estimate?=?0.003, 95 % confidence interval?=?0.001–0.005, after controlling for age 16 LOC eating and age 17 demographics, body mass index, and emotion regulation variables. Results suggest that deficient emotion regulation may contribute to the onset and maintenance of LOC eating in adolescence (although effects were small), and may partially explain the well-established prospective relationship between negative emotionality and later LOC eating. Prevention and early intervention programs should seek to improve adaptive coping in at-risk populations.  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