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   57983篇
  免费   2578篇
  国内免费   22篇
  2020年   781篇
  2019年   839篇
  2018年   1186篇
  2017年   1247篇
  2016年   1308篇
  2015年   936篇
  2014年   1138篇
  2013年   5223篇
  2012年   2014篇
  2011年   2022篇
  2010年   1238篇
  2009年   1277篇
  2008年   1775篇
  2007年   1713篇
  2006年   1583篇
  2005年   1307篇
  2004年   1326篇
  2003年   1273篇
  2002年   1203篇
  2001年   1941篇
  2000年   1819篇
  1999年   1367篇
  1998年   636篇
  1997年   537篇
  1996年   647篇
  1995年   577篇
  1994年   562篇
  1993年   546篇
  1992年   1135篇
  1991年   1048篇
  1990年   1027篇
  1989年   975篇
  1988年   955篇
  1987年   883篇
  1986年   873篇
  1985年   910篇
  1984年   735篇
  1983年   634篇
  1982年   485篇
  1979年   777篇
  1978年   586篇
  1977年   489篇
  1975年   607篇
  1974年   682篇
  1973年   705篇
  1972年   606篇
  1971年   564篇
  1968年   619篇
  1967年   531篇
  1966年   509篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
11.
12.
Adult age differences in the consistency effect were examined in 3 experiments. The consistency effect refers to items inconsistent with expectations being better remembered than items consistent with expectations. Younger and older adults walked into an office room and viewed objects that varied in their consistency with expectation. Immediate and delayed recognition tests on item information (i.e., distractors were defined by their semantic identity) revealed that both age groups recognized unexpected items better than expected items. However, when recognition of token information was requested (i.e., distractors were defined by their physical appearance), younger adults, in contrast to older adults, exhibited consistency effects. Also, under divided attention, young adults revealed the same pattern of data as did elderly adults under full attention. The results are discussed in terms of capacity-related differences in distinctive encoding.  相似文献   
13.
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   
14.
15.
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   
16.
17.
18.
19.
20.
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