全文获取类型
收费全文 | 9632篇 |
免费 | 326篇 |
国内免费 | 458篇 |
专业分类
10416篇 |
出版年
2023年 | 52篇 |
2022年 | 62篇 |
2021年 | 89篇 |
2020年 | 134篇 |
2019年 | 138篇 |
2018年 | 293篇 |
2017年 | 261篇 |
2016年 | 353篇 |
2015年 | 227篇 |
2014年 | 176篇 |
2013年 | 624篇 |
2012年 | 527篇 |
2011年 | 533篇 |
2010年 | 225篇 |
2009年 | 242篇 |
2008年 | 285篇 |
2007年 | 323篇 |
2006年 | 331篇 |
2005年 | 1539篇 |
2004年 | 865篇 |
2003年 | 607篇 |
2002年 | 291篇 |
2001年 | 105篇 |
2000年 | 87篇 |
1999年 | 112篇 |
1998年 | 88篇 |
1997年 | 66篇 |
1996年 | 88篇 |
1995年 | 73篇 |
1994年 | 76篇 |
1993年 | 64篇 |
1992年 | 84篇 |
1991年 | 89篇 |
1990年 | 106篇 |
1989年 | 92篇 |
1988年 | 69篇 |
1987年 | 87篇 |
1986年 | 79篇 |
1985年 | 87篇 |
1984年 | 68篇 |
1983年 | 70篇 |
1982年 | 51篇 |
1981年 | 38篇 |
1980年 | 36篇 |
1979年 | 58篇 |
1975年 | 45篇 |
1974年 | 55篇 |
1973年 | 49篇 |
1972年 | 36篇 |
1971年 | 36篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
231.
Mary Ann Records Raymond C. Heimbuch Kenneth K. Kidd 《Journal of Fluency Disorders》1977,2(4):271-282
A handedness questionnaire was administered to 446 stutterers and a control group. No significant male/female or stutterer/control effects were found, although both males and stutterers tended to be less right handed. The slight sex effect in handedness is consistent with previously reported studies and with cerebral structural and functional asymmetries. 相似文献
232.
233.
C Krauss V Scholz M Kn?pfel 《Psychiatrie, Neurologie, und medizinische Psychologie》1977,29(10):606-609
The authors report their experience with a special form of psychodrama for the treatment in small groups of neurotic children aged five to fifteen. The acting out of ambivalent, partly unconscious and restrained tendencies and inclinations by playing, i.e., by taking roles in spontaneous performances, is followed by alternation of identification in the group and, possibly, careful indirect verbalization by the therapeutist and/or group, of which the purpose is to arrive at a reorientation of the attitudes of patients and a consolidation of the newly won attitude. 相似文献
234.
235.
236.
237.
Electromagnetic articulography: use of alternating magnetic fields for tracking movements of multiple points inside and outside the vocal tract 总被引:3,自引:0,他引:3
The purpose of this paper is to present a new electromagnetic device which uses alternating magnetic fields for tracking movements of multiple points inside and outside the vocal tract. It is biologically safe, noninvasive, it does not interfere with speech movements, allows for multiple recording in the same subject, and for easy collection of large amounts of data. It is especially suitable for evaluation of patients with speech motor impairments. 相似文献
238.
239.
240.
Tarja Heponiemi Marko Elovainio Laura Pulkki Sampsa Puttonen Olli Raitakari Liisa Keltikangas-J?rvinen 《Health psychology》2007,26(1):13-21
The present study examined the association of cardiac autonomic task-induced reactivity and recovery to preclinical atherosclerosis. Thirty-three men and 33 women aged 24-39 years participated in the ongoing epidemiological Cardiovascular Risk in Young Finns study. The authors measured heart rate (HR), respiratory sinus arrhythmia (RSA), and preejection period (PEP) during the mental arithmetic and speech tasks in 1999. Carotid atherosclerosis was assessed by measuring the thickness of the common carotid artery intima-media complex (IMT) with ultrasound in 2001. Higher HR, RSA, and PEP reactivity were associated with lower IMT values even after adjusting for cardiovascular risk factors (lipid levels, obesity, and blood pressure). In addition, better HR recovery after the mental arithmetic task was associated with lower IMT values, and this association persisted after all adjustments. Thus, higher task-induced cardiac autonomic reactivity and better HR recovery were related to less preclinical atherosclerosis. The authors concluded that cardiac pattern of reactivity and quick recovery may be associated with better cardiovascular health, and therefore all reactivity occurring in challenging situations should not automatically be considered as potentially pathological. 相似文献