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   70648篇
  免费   2701篇
  国内免费   38篇
  2020年   751篇
  2019年   906篇
  2018年   1333篇
  2017年   1359篇
  2016年   1427篇
  2015年   940篇
  2014年   1168篇
  2013年   5905篇
  2012年   2166篇
  2011年   2363篇
  2010年   1391篇
  2009年   1393篇
  2008年   2092篇
  2007年   2072篇
  2006年   1828篇
  2005年   1654篇
  2004年   1613篇
  2003年   1497篇
  2002年   1560篇
  2001年   2285篇
  2000年   2201篇
  1999年   1668篇
  1998年   879篇
  1997年   746篇
  1996年   684篇
  1995年   653篇
  1994年   660篇
  1993年   679篇
  1992年   1358篇
  1991年   1268篇
  1990年   1290篇
  1989年   1180篇
  1988年   1131篇
  1987年   1135篇
  1986年   1121篇
  1985年   1200篇
  1984年   933篇
  1983年   831篇
  1982年   675篇
  1979年   978篇
  1978年   734篇
  1975年   891篇
  1974年   930篇
  1973年   901篇
  1972年   813篇
  1971年   719篇
  1969年   707篇
  1968年   837篇
  1967年   811篇
  1966年   744篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
71.
72.
Adults are better at recognizing familiar faces from the internal facial features (eyes, nose, mouth) than from the external facial features (hair, face outline). However, previous research suggests that this “internal advantage” does not appear until relatively late in childhood, and some studies suggest that children rely on external features to recognize all faces, whether familiar or not. We use a matching task to examine face processing in 7-8- and 10-11-year-old children. We use a design in which all face stimuli can be used as familiar items (for participants who are classmates) and unfamiliar items (for participants from a different school). Using this design, we find an internal feature advantage for matching familiar faces, for both groups of children. The same children were then shown the external and internal features of their classmates and were asked to name or otherwise identify them. Again, both age groups identified more of their classmates correctly from the internal than the external features. This is the first time an internal advantage has been reported in this age group. Results suggest that children as young as 7 process faces in the same way as do adults, and that once procedural difficulties are overcome, the standard effects of familiarity are observed.  相似文献   
73.
Book reviews     
TOATES, F. Animal Behaviour: A Systems Approach. Chichester: John Wiley and Sons. 1980. Pp. 299. Hardback £17. Paper back £6.40 ISBN 0 471 27724.

DICKINSON, A. Contemporary Animal Learning Theory. Cambridge: University Press. 1980. Pp. 177. Hardback £12.50. Paperback £3.95. ISBN 0 521 23469 7.  相似文献   
74.
75.
Although a great deal of research has been conducted on the relationship between social support and physical health, the contribution of personality characteristics to this relationship has rarely been assessed. Structural equation modeling was employed to derive and test a model of the direct and indirect relationships between personality characteristics, social network size, the perceived availability of support, socially supportive behaviors, and perceived physical health with a sample of Pennsylvania adults. Significant paths indicate that individuals who perceive themselves as affiliative and as help seekers and help givers report larger social networks, receive more socially supportive behaviors, and perceive that more support is available to them. The perception that support is available shared a direct relationship with perceived physical health. The utility of including multiple measures of social support and personality characteristics related to receiving support in investigations of the relationship between social support and physical health is discussed.  相似文献   
76.
77.
78.
79.
80.
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