全文获取类型
收费全文 | 1948篇 |
免费 | 76篇 |
专业分类
2024篇 |
出版年
2020年 | 30篇 |
2018年 | 29篇 |
2017年 | 35篇 |
2016年 | 36篇 |
2015年 | 35篇 |
2014年 | 42篇 |
2013年 | 197篇 |
2012年 | 73篇 |
2011年 | 57篇 |
2010年 | 32篇 |
2009年 | 30篇 |
2008年 | 64篇 |
2007年 | 64篇 |
2006年 | 54篇 |
2005年 | 60篇 |
2004年 | 58篇 |
2003年 | 48篇 |
2002年 | 64篇 |
2001年 | 34篇 |
2000年 | 25篇 |
1999年 | 29篇 |
1998年 | 33篇 |
1997年 | 35篇 |
1996年 | 37篇 |
1995年 | 40篇 |
1994年 | 33篇 |
1993年 | 23篇 |
1992年 | 29篇 |
1991年 | 25篇 |
1990年 | 27篇 |
1989年 | 30篇 |
1988年 | 20篇 |
1987年 | 23篇 |
1986年 | 22篇 |
1985年 | 31篇 |
1984年 | 34篇 |
1983年 | 32篇 |
1982年 | 35篇 |
1981年 | 27篇 |
1980年 | 38篇 |
1979年 | 30篇 |
1978年 | 28篇 |
1977年 | 40篇 |
1976年 | 42篇 |
1975年 | 23篇 |
1974年 | 41篇 |
1973年 | 27篇 |
1972年 | 14篇 |
1969年 | 16篇 |
1967年 | 14篇 |
排序方式: 共有2024条查询结果,搜索用时 15 毫秒
951.
A multichannel programming, data collection, and printout system is described for the investigation of avoidance and stress conditioning of monkeys, individually or yoked. 相似文献
952.
Jum C. Nunnally Paul D. Knott Albert Duchnowski Ronald Parker 《Attention, perception & psychophysics》1967,2(4):149-155
Pupil size was measured while 30 male college students undertook five tasks respectively concerning, (a) muscle tension induced by the lifting of weights, (b) fear induced by threat of a gunshot, (c) intense stimulation induced by loud pure tones, (d) heightened attention from viewing novel pictures, and (e) pleasantness and unpleasantness in reaction to pictures that differed in terms of their affect-inducing characteristics. Highly regular relationships were found between pupil size and degree of muscle strain and between pupil size and the temporal ordering of events during threat of a gunshot. Significant effects on pupil size also were found for the other three types of stimulation. 相似文献
953.
954.
955.
956.
957.
958.
959.
Dr. Ronald O. Valdiserri M.D. 《The Journal of medical humanities》1987,8(2):95-100
Irrational responses to patient with AIDS, particularly in regards to the transmissibility of HIV (human immunodeficiency virus) are examined from an historical and psychosocial perspective. Although these responses are similar to those reported from past epidemics such as plague and leprosy, they are in direct conflict with our current level of understanding regarding the transmission of this virus. Their genesis may relate to the human penchant to react to illness metaphorically. In order to allay effectively public concern about the transmissibility of AIDS, it is essential to recognize the metaphor associated with venereal disease in general and AIDS in particular. 相似文献
960.
Dwight Mazmanian James D. Mendonca Ronald R. Holden Barbara Dufton 《Journal of psychopathology and behavioral assessment》1987,9(2):135-148
Using the responses of 197 suicidal and nonsuicidal patients of a crisis and short-term intervention unit, the item factor structure of the SCL-90 was examined. Results suggested a reduced dimensionality for the checklist rather than supporting the nine scales associated with the instrument's scoring key. The influence of various response styles on the SCL-90's dimensionality was also explored. Although a social desirability response style was strongly related to all SCL-90 subscales and factors, it did not offer a complete explanation for the checklist's apparent unidimensionality. Other explanations relating to methods of test construction and to patients' inability to differentiate symptoms were also preferred. Finally, although subscale scores may facilitate clinical interpretation, it was suggested that the SCL-90 might best be scored as a single index of general symptomatology.We wish to thank G. C. Fekken and R. N. MacLennan for their assistance with this project.This work was supported in part by Social Sciences and Humanities Research Council of Canada Grant 410-85-1043 and by an Ontario Ministry of Health Research Personnel Award. 相似文献