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   36423篇
  免费   1511篇
  国内免费   18篇
  2020年   366篇
  2019年   432篇
  2018年   626篇
  2017年   626篇
  2016年   686篇
  2015年   529篇
  2014年   597篇
  2013年   2837篇
  2012年   1076篇
  2011年   1066篇
  2010年   677篇
  2009年   642篇
  2008年   888篇
  2007年   957篇
  2006年   818篇
  2005年   805篇
  2004年   722篇
  2003年   683篇
  2002年   732篇
  2001年   1346篇
  2000年   1298篇
  1999年   953篇
  1998年   384篇
  1997年   348篇
  1996年   375篇
  1995年   327篇
  1992年   794篇
  1991年   754篇
  1990年   744篇
  1989年   673篇
  1988年   672篇
  1987年   638篇
  1986年   609篇
  1985年   625篇
  1984年   522篇
  1983年   460篇
  1982年   355篇
  1979年   551篇
  1978年   418篇
  1977年   351篇
  1975年   455篇
  1974年   565篇
  1973年   580篇
  1972年   458篇
  1971年   445篇
  1970年   412篇
  1969年   424篇
  1968年   549篇
  1967年   470篇
  1966年   427篇
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
21.
22.
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   
23.
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   
24.
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   
25.
26.
27.
In three experiments we studied the relationship between contextual conditioning and the reinstatement of extinguished lever pressing that occurs when noncontingent food is introduced following extinction. In all three experiments the non-contingent food was presented off-baseline (with the response levers not present). On subsequent tests, with the response levers present, animals that had been exposed to food showed more reinstatement of lever pressing than control animals. This finding rules out alternative mechanisms for the reinstated responding that rely on the interaction of non-contingent food and responding, such as superstitious reinforcement or the discriminative after-effects of food. In addition, in each experiment we demonstrated that manipulations known to affect contextual conditioning (signalling the food in Experiment 1, context extinction in Experiment 2, and switching contexts in Experiment 3) reduced the reinstatement. These results are consistent with the claim that contextual conditioning is important in controlling instrumental conditioning and closely parallel findings concerning the reinstatement of Pavlovian responsing following extinction.  相似文献   
28.
This study evaluated cardiovascular responses (CVR) to an active speech task with blatantly discriminatory (BRC) versus neutral (NRC) stimuli and an anger recall task in a sample of Black men (N = 73; age 18 to 47). Diastolic blood pressure scores were higher for NRC versus BRC stimuli during anger recall (p = .05). Moreover, persons in the NRC group who perceived high levels of racism (vs. no racism or BRC group) during active speech showed larger increases in blood pressure across postspeech rest, anger recall, and subsequent rest (p = .03). The notable elevation in CVR in response to an ambiguous event extends current models of racism suggesting that subtle racism is a psychosocial stressor that erodes health through chronically elevated CVR.  相似文献   
29.
30.
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