全文获取类型
收费全文 | 38056篇 |
免费 | 799篇 |
国内免费 | 5篇 |
出版年
2020年 | 251篇 |
2019年 | 277篇 |
2018年 | 3826篇 |
2017年 | 3152篇 |
2016年 | 2601篇 |
2015年 | 506篇 |
2014年 | 443篇 |
2013年 | 1733篇 |
2012年 | 1159篇 |
2011年 | 3005篇 |
2010年 | 2878篇 |
2009年 | 1847篇 |
2008年 | 2256篇 |
2007年 | 2688篇 |
2006年 | 544篇 |
2005年 | 693篇 |
2004年 | 612篇 |
2003年 | 520篇 |
2002年 | 482篇 |
2001年 | 554篇 |
2000年 | 539篇 |
1999年 | 396篇 |
1998年 | 251篇 |
1997年 | 175篇 |
1996年 | 182篇 |
1995年 | 186篇 |
1994年 | 162篇 |
1993年 | 162篇 |
1992年 | 283篇 |
1991年 | 286篇 |
1990年 | 272篇 |
1989年 | 271篇 |
1988年 | 267篇 |
1987年 | 236篇 |
1986年 | 225篇 |
1985年 | 247篇 |
1984年 | 234篇 |
1983年 | 183篇 |
1982年 | 173篇 |
1979年 | 191篇 |
1978年 | 157篇 |
1975年 | 194篇 |
1974年 | 210篇 |
1973年 | 221篇 |
1972年 | 191篇 |
1971年 | 168篇 |
1969年 | 156篇 |
1968年 | 204篇 |
1967年 | 163篇 |
1966年 | 176篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
41.
42.
43.
44.
45.
J.B. Trobalon J. Sansa V. D. Chamizo N.J. Mackintos 《The Quarterly Journal of Experimental Psychology Section B: Comparative and Physiological Psychology》1991,43(4):389-402
In Experiment 1, rats were trained on a discrimination between rubber- and sandpaper-covered arms of a maze after one group had been pre-exposed to these intra-maze cues. Pre-exposure facilitated subsequent discrimination learning, unless the discrimination was made easier by adding further discriminative stimuli, when it now significantly retarded learning. In Experiment 2, rats were trained on an extra-maze spatial discrimination, again after one group, but not another, had been pre-exposed to the extra-maze landmarks. Here too, pre-exposure facilitated subsequent discrimination learning, unless the discrimination was made substantially easier by arranging that the two arms between which rats had to choose were always separated by 135°. The results of both experiments can be explained by supposing that perceptual learning depends on the presence of features common to S+ and S-. 相似文献
46.
Paul Redding 《Inquiry (Oslo, Norway)》2019,62(5):586-606
ABSTRACTHegel's Phenomenology of Spirit provides a fascinating picture of individual minds caught up in “recognitive” relations so as to constitute a realm—“spirit”—which, while necessarily embedded in nature, is not reducible to it. In this essay I suggest a contemporary path for developing Hegel's suggestive ideas in a way that broadly conforms to the demands of his own system, such that one moves from logic to a philosophy of mind. Hence I draw on Hegel's “subjective logic”, understood in the light of modern modal logic, in an attempt to model the way minds might be thought as connected by way of shared intentional contents. Here, we should not be surprised at some of the parallels that emerge between the approaches of Hegel and the modal logician Arthur Prior, as Prior had testified to the influence of his teacher, John N. Findlay, who himself had strong Hegelian leanings. In the final section, Robert Stalnaker's version of possible-world semantics is suggested as a framework within which Hegel's recognitive account of the mind might be understood. 相似文献
47.
48.
49.
50.