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   42571篇
  免费   1795篇
  国内免费   23篇
  2020年   509篇
  2019年   527篇
  2018年   813篇
  2017年   746篇
  2016年   824篇
  2015年   595篇
  2014年   781篇
  2013年   3414篇
  2012年   1329篇
  2011年   1376篇
  2010年   822篇
  2009年   904篇
  2008年   1234篇
  2007年   1253篇
  2006年   1133篇
  2005年   1068篇
  2004年   981篇
  2003年   918篇
  2002年   914篇
  2001年   1486篇
  2000年   1443篇
  1999年   1100篇
  1998年   516篇
  1997年   452篇
  1996年   427篇
  1995年   399篇
  1992年   858篇
  1991年   796篇
  1990年   863篇
  1989年   731篇
  1988年   691篇
  1987年   656篇
  1986年   668篇
  1985年   744篇
  1984年   616篇
  1983年   535篇
  1982年   421篇
  1979年   562篇
  1978年   481篇
  1977年   391篇
  1976年   380篇
  1975年   527篇
  1974年   590篇
  1973年   597篇
  1972年   480篇
  1971年   436篇
  1969年   407篇
  1968年   511篇
  1967年   457篇
  1966年   451篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
31.
32.
33.
This paper was not available at the time of going to press. It will be published in a future volume of the Proceedings of The Aristotelian Society.  相似文献   
34.
The three reliability and two construct validity studies presented here represent the first psychometric research on the commercially successful and popular Hartman Color Code Personality Profile. The reliability studies found high reliability after 3 and 6 weeks. The construct validity studies substantiated that the Color Code assesses some personality traits. The magnitude of the error variance suggests caution, however, in using the Color Code classifications at the individual level.  相似文献   
35.
P Bressan 《Perception》1987,16(5):671-675
If a few parallel horizontal rows of dots are set diagonally, like steps, across the visual field, the inner rows appear not to be horizontal but sloping up to one side; the effect holds as long as the vertical distances between the rows do not exceed a given visual angle. This illusion, described by Vicario in 1978, was never explained. An experiment is reported in which the illusion was still visible at row separations well in excess of the spatial limits originally considered, provided the stimulus elements were enlarged. The maximum illusion was obtained for length ratios (interrow distance to size of dots) identical to those which have been shown to produce the largest effects in a number of illusions of area and length. This suggests that Vicario's illusion is similar to other illusions of extent, and that it can be explained by a neural extent-coding model.  相似文献   
36.
We report an eye movement experiment investigating the influence of the focus operator only on syntactic processing of "long" relative clause sentences. Paterson, Liversedge, and Underwood (1999) found that readers were garden pathed by "short" reduced relative clause sentences containing the focus operator only . They argued that due to thematic differences between "short" and "long" relative clause sentences, garden path effect might not occur when "long" reduced relative clause sentences are read. Eye-tracking data show that garden path effects found during initial processing of the disambiguating verb of "long" reduced sentences without only were absent or delayed in the case of counterparts with only . We discuss our results in terms of current theories of sentence processing.  相似文献   
37.
38.
39.
40.
Although perceived health risk plays a prominent role in theories of health behavior, its empirical role in risk taking is less clear. In Study 1 (N = 129), 2 measures of drivers' risk-taking behavior were found to be unrelated to self-estimates of accident concern but to be related to self-ratings of driving skill and the perceived thrill of driving. In Study 2 (N = 405), out of a wide range of potential influences, accident concern had the weakest relationship with risk taking. The authors concluded that although health risk is a key feature in many theories of health behavior and a central focus for researchers and policy makers, it may not be such a prominent factor for those actually taking the risk.  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