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   184555篇
  免费   8183篇
  国内免费   156篇
  2020年   2811篇
  2019年   3471篇
  2018年   3779篇
  2017年   4155篇
  2016年   4811篇
  2015年   3954篇
  2014年   4823篇
  2013年   23525篇
  2012年   5119篇
  2011年   4378篇
  2010年   4119篇
  2009年   4896篇
  2008年   4470篇
  2007年   4014篇
  2006年   4472篇
  2005年   4329篇
  2004年   3893篇
  2003年   3480篇
  2002年   3269篇
  2001年   4037篇
  2000年   3787篇
  1999年   3556篇
  1998年   2889篇
  1997年   2704篇
  1996年   2622篇
  1995年   2448篇
  1994年   2414篇
  1993年   2370篇
  1992年   2920篇
  1991年   2728篇
  1990年   2564篇
  1989年   2479篇
  1988年   2437篇
  1987年   2402篇
  1986年   2424篇
  1985年   2665篇
  1984年   2647篇
  1983年   2406篇
  1982年   2408篇
  1981年   2369篇
  1980年   2213篇
  1979年   2359篇
  1978年   2263篇
  1977年   2213篇
  1976年   2024篇
  1975年   2098篇
  1974年   2189篇
  1973年   2071篇
  1972年   1663篇
  1971年   1600篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
61.
62.
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   
63.
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   
64.
65.
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   
66.
67.
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   
68.
69.
70.
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