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   181251篇
  免费   7965篇
  国内免费   166篇
  2021年   1557篇
  2020年   2865篇
  2019年   3532篇
  2018年   3750篇
  2017年   4167篇
  2016年   4827篇
  2015年   4006篇
  2014年   4906篇
  2013年   23893篇
  2012年   5086篇
  2011年   4203篇
  2010年   4163篇
  2009年   4972篇
  2008年   4422篇
  2007年   4027篇
  2006年   4478篇
  2005年   4367篇
  2004年   3885篇
  2003年   3492篇
  2002年   3288篇
  2001年   3453篇
  2000年   3275篇
  1999年   3284篇
  1998年   2878篇
  1997年   2707篇
  1996年   2593篇
  1995年   2477篇
  1994年   2431篇
  1993年   2379篇
  1992年   2719篇
  1991年   2513篇
  1990年   2404篇
  1989年   2290篇
  1988年   2288篇
  1987年   2292篇
  1986年   2249篇
  1985年   2438篇
  1984年   2589篇
  1983年   2359篇
  1982年   2405篇
  1981年   2374篇
  1980年   2223篇
  1979年   2296篇
  1978年   2224篇
  1977年   2166篇
  1976年   1992篇
  1975年   2050篇
  1974年   2114篇
  1973年   2012篇
  1972年   1546篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
63.
Introduction     
Journal of International Migration and Integration -  相似文献   
64.
65.
Rowbottom  Darrell P. 《Synthese》2021,198(3):2153-2167
Synthese - First, I identify a methodological thesis associated with scientific realism. This has different variants, but each concerns the reliability of scientific methods in connection with...  相似文献   
66.
The authors tested effects of a 10-week group cognitive-behavioral stress management intervention among 100 women newly treated for Stage 0-II breast cancer. The intervention reduced prevalence of moderate depression (which remained relatively stable in the control condition) but did not affect other measures of emotional distress. The intervention also increased participants' reports that having breast cancer had made positive contributions to their lives, and it increased generalized optimism. Both remained significantly elevated at a 3-month follow-up of the intervention. Further analysis revealed that the intervention had its greatest impact on these 2 variables among women who were lowest in optimism at baseline. Discussion centers on the importance of examining positive responses to traumatic events--growth, appreciation of life, shift in priorities, and positive affect-as well as negative responses.  相似文献   
67.
68.
This article integrates existing theoretical perspectives on message content and negotiator motivation to formulate a comprehensive definitional model of the interrelationships among communication behaviors in crisis negotiation. A sample of 189 nuclear dialogue spans were transcribed from 9 resolved cases of hostage negotiation and each utterance coded at the level of thought units across 41 behavioral variables. Results of a nonmetric, multidimensional scaling solution provided clear support for the hypothesized cylindrical structure of communication behavior, revealing 3 dominant levels of suspect‐negotiator interaction (Avoidance, Distributive, Integrative). At each level of the structure, interactions were found to modulate around 3 thematic styles of communication (Identity, Instrumental, Relational), which reflected the underlying motivational emphasis of individuals' dialogue. Finally, the intensity of communication was found to play a polarizing role in the cylinder, with intense, functionally discrete behaviors occurring toward the boundary of the structure.  相似文献   
69.
70.
There is substantial evidence of detrimental psychological sequelae following disasters, including terrorist attacks. The effect of these events on extreme responses such as suicide, however, is unclear. We tested competing hypotheses about such effects by employing autoregressive integrated moving average techniques to model the impact of September 11 and the Oklahoma City bombing on monthly suicide counts at the local, state, and national level. Unlike prior studies that provided conflicting evidence, rigorous time series techniques revealed no support for an increase or decrease in suicides following these events. We conclude that while terrorist attacks produce subsequent psychological morbidity and may affect self and collective efficacy well beyond their immediate impact, these effects are not strong enough to influence levels of suicide mortality.  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