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   65783篇
  免费   2613篇
  国内免费   31篇
  2020年   632篇
  2019年   792篇
  2018年   1078篇
  2017年   1141篇
  2016年   1166篇
  2015年   877篇
  2014年   994篇
  2013年   4766篇
  2012年   1852篇
  2011年   1930篇
  2010年   1238篇
  2009年   1201篇
  2008年   1740篇
  2007年   1655篇
  2006年   1484篇
  2005年   1354篇
  2004年   1258篇
  2003年   1245篇
  2002年   1205篇
  2001年   2194篇
  2000年   2132篇
  1999年   1569篇
  1998年   717篇
  1997年   606篇
  1992年   1428篇
  1991年   1348篇
  1990年   1345篇
  1989年   1190篇
  1988年   1176篇
  1987年   1149篇
  1986年   1139篇
  1985年   1259篇
  1984年   1007篇
  1983年   857篇
  1982年   634篇
  1981年   618篇
  1979年   1063篇
  1978年   725篇
  1977年   703篇
  1976年   661篇
  1975年   932篇
  1974年   1001篇
  1973年   1091篇
  1972年   921篇
  1971年   829篇
  1970年   822篇
  1969年   827篇
  1968年   1062篇
  1967年   929篇
  1966年   904篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
Introduction     
Journal of International Migration and Integration -  相似文献   
22.
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   
23.
This study examined individuals' tendencies to migrate from one organization to another (i.e., the propensity to switch employers). Previous researchers have suggested that switching organizations throughout the career span may be partially heritable and therefore related to individual differences in personality traits. If personality traits are indeed related to a tendency to turnover from organizations, this suggests that current procedures for calculating utility may be inaccurate. Using a database of 1081 individuals who have been in the workforce for several years, results indicated that personality traits measured by the Occupational Personality Questionnaire (non‐ipsative; OPQn) were modestly related to organization switching (i.e., repeated moves from organization to organization). We found that higher scores on extraversion, openness to experience, and conscientiousness‐related traits were modestly correlated with more frequent organization switching. However, we demonstrate that these modest relationships can produce large inaccuracies in utility estimates.  相似文献   
24.
25.
26.
27.
28.
29.
30.
Using a Piagétan perspective, this study investigated the ways in which elementary school children perceive changes in the size of a televised image (in this case, a candy bar). The findings suggest that younger children perceive changes in image size from a medium shot to a close-up as changes in the object itself. Children's responses to changes in the televised image parallel their responses to traditional conservation tasks, but conservation of televised images occurs at a later age. In addition, children appear to use different cognitive skills to interpret how a zoom or a cut transforms the size of a televised image. When a zoom is used, children more readily perceive the object as “growing larger.”  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