全文获取类型
收费全文 | 7694篇 |
免费 | 271篇 |
国内免费 | 13篇 |
出版年
2023年 | 65篇 |
2021年 | 66篇 |
2020年 | 127篇 |
2019年 | 134篇 |
2018年 | 164篇 |
2017年 | 165篇 |
2016年 | 204篇 |
2015年 | 235篇 |
2014年 | 265篇 |
2013年 | 927篇 |
2012年 | 366篇 |
2011年 | 359篇 |
2010年 | 320篇 |
2009年 | 313篇 |
2008年 | 330篇 |
2007年 | 295篇 |
2006年 | 263篇 |
2005年 | 210篇 |
2004年 | 180篇 |
2003年 | 176篇 |
2002年 | 138篇 |
2001年 | 112篇 |
2000年 | 88篇 |
1999年 | 68篇 |
1998年 | 60篇 |
1997年 | 69篇 |
1996年 | 65篇 |
1995年 | 88篇 |
1994年 | 82篇 |
1993年 | 68篇 |
1992年 | 85篇 |
1991年 | 82篇 |
1990年 | 80篇 |
1989年 | 85篇 |
1988年 | 90篇 |
1987年 | 65篇 |
1986年 | 69篇 |
1985年 | 69篇 |
1984年 | 70篇 |
1983年 | 62篇 |
1982年 | 81篇 |
1981年 | 63篇 |
1980年 | 81篇 |
1979年 | 81篇 |
1978年 | 91篇 |
1977年 | 87篇 |
1976年 | 88篇 |
1975年 | 88篇 |
1974年 | 86篇 |
1973年 | 55篇 |
排序方式: 共有7978条查询结果,搜索用时 15 毫秒
41.
42.
43.
Daniel D. Houlihan Robert N. Jones Howard N. Sloane Joni Cook 《Behavioral Interventions》1992,7(1):71-77
This brief report proposes an extension of the traditional Alternating Treatments Design that would be acceptable to use in hospital and residential settings where subjects are often not concurrently available. Concerns about the inability of traditional designs to work in these special situations and the emergence of a “scientist–practitioner split” are discussed. An example of how the Extended Alternating Treatments Design might be used is provided. 相似文献
44.
Adrienne Y. Lee 《Behavior research methods》1992,24(2):205-212
HyperCard was used to develop a simplified tutoring system whose principles were based on a learning theory, and a genetics tutoring system was evaluated experimentally. Learning was studied by examining immediate versus delayed feedback after an error was made. Such tutoring systems aid in psychological studies of learning, because experimental variables can be easily manipulated. HyperCard provides a good vehicle for tutoring system development, since it requires no extensive programming skills. 相似文献
45.
The relationship between amphetamine-induced stereotyped behavior and a neuroendocrine index of arousal, plasma corticosterone (CCS), was investigated. 6-Hydroxydopamine lesions of the caudate-putamen, which produced dopamine depletions of 60%, blocked stereotypy and prolonged the elevation in corticosterone associated with d-amphetamine treatment (5 mg/kg). Similar dopamine depleting lesions of the nucleus accumbens, which attenuated the locomotor, but not the stereotypic, response to AMPH did not have this effect on CCS. This pattern of results supports the hypothesis that stereotypy has a coping function which may serve to alter arousal and further suggests important differences between the nigrostriatal and mesolimbic dopamine projections in modulating the responsiveness of the neuroendocrine system. These results have implications for understanding the function of behavioral stereotypies common to a number of psychopathological conditions, including schizophrenia and childhood autism. 相似文献
46.
Dynamic attending and responses to time 总被引:6,自引:0,他引:6
47.
The relation between awareness of body topology and auditory comprehension of body part names was studied in 22 aphasic subjects. Two nonverbal tasks—human figure drawing and placement of individual body parts in relation to a drawn face—were compared with two auditory tests of body part comprehension. The two nonverbal and the two verbal tasks were closely correlated with each other, but there was no relation involving either of the verbal tests with either of the nonverbal tests. Selection errors in the auditory comprehension tasks were predominantly semantically based and equally distributed between functionally analogous parts and parts related by location on the body.Dr. Benedet's effort in this study was supported by a grant from the Hispano-North American Joint Committee for Cultural and Educational Cooperation. 相似文献
48.
Dr. Juan C. Saavedra-Aguilar M.D. Lic. Juan S. Gómez-Jeria Lic.Q. 《Journal of Near-Death Studies》1989,7(4):265-272
This work has received financial support from FONDECYT (Project 1111-88). The authors also acknowledge the helpful comments of Dr. Bruce Cassels. 相似文献
49.
This study examined the ability of both an overt integrity test and a personality-based measure of delinquency to predict on-the-job theft and counterproductivity. A heterogeneous sample of 105 employees anonymously completed both tests and a criterion checklist that included a 9-item theft subscale and a 12-item counterproductivity subscale. Results indicated that the overt integrity test was a superior predictor of both on-the-job theft and drug abuse compared to the personality-based measure. The overt integrity test was also a slightly better predictor of general counterproductivity. These findings and their implications are discussed. 相似文献
50.