全文获取类型
收费全文 | 51932篇 |
免费 | 2161篇 |
国内免费 | 21篇 |
专业分类
54114篇 |
出版年
2020年 | 517篇 |
2019年 | 584篇 |
2018年 | 813篇 |
2017年 | 801篇 |
2016年 | 896篇 |
2015年 | 673篇 |
2014年 | 792篇 |
2013年 | 3595篇 |
2012年 | 1534篇 |
2011年 | 1447篇 |
2010年 | 938篇 |
2009年 | 883篇 |
2008年 | 1309篇 |
2007年 | 1323篇 |
2006年 | 1133篇 |
2005年 | 1107篇 |
2004年 | 1023篇 |
2003年 | 924篇 |
2002年 | 955篇 |
2001年 | 1789篇 |
2000年 | 1743篇 |
1999年 | 1255篇 |
1998年 | 542篇 |
1997年 | 485篇 |
1996年 | 480篇 |
1992年 | 1161篇 |
1991年 | 1066篇 |
1990年 | 1104篇 |
1989年 | 951篇 |
1988年 | 934篇 |
1987年 | 895篇 |
1986年 | 913篇 |
1985年 | 986篇 |
1984年 | 792篇 |
1983年 | 712篇 |
1982年 | 507篇 |
1979年 | 852篇 |
1978年 | 577篇 |
1977年 | 542篇 |
1976年 | 513篇 |
1975年 | 739篇 |
1974年 | 864篇 |
1973年 | 891篇 |
1972年 | 760篇 |
1971年 | 726篇 |
1970年 | 682篇 |
1969年 | 707篇 |
1968年 | 928篇 |
1967年 | 811篇 |
1966年 | 721篇 |
排序方式: 共有10000条查询结果,搜索用时 15 毫秒
151.
152.
153.
154.
The startle probe response: a new measure of emotion? 总被引:17,自引:0,他引:17
155.
Amnesia as a consequence of male rape: a case report 总被引:2,自引:0,他引:2
156.
157.
158.
T D Crespi 《Adolescence》1988,23(92):805-811
The effectiveness of a time-out intervention for adolescent psychiatric patients, adjudicated (delinquent) youth, and behaviorally disordered youngsters was explored in this study. The research was conducted in three psychiatric hospitals for children and adolescents, a facility for adjudicated youth, and in a day-treatment program. Utilizing a comparative outcome model, 813 occurrences of time-out with 274 youth were investigated in order to assess levels of effectiveness. The results indicated that time-out had a significant impact, and the use of a child-care specialist as time-out monitor improves overall effectiveness. Important implications for practicing professionals and clinical researchers are noted. 相似文献
159.
160.
H. O. F. Veiel G. Brill H. Hafner R. Welz 《American journal of community psychology》1988,16(6):839-861
The social support patterns of a sample of 101 suicide attempters were compared with the patterns of a control sample on the basis of structured interview data. Network characteristics and the extent of support in different functional categories were examined as to their absolute and relative power to discriminate between the suicide attempters and the controls. A clear separation of the functions of kin and of friends/acquaintances emerged. The crucial difference between the attempters and the controls lay in the number of friends with whom the subjects had agreeable everyday interactions and in the number of kin that provided crisis support, both psychological and instrumental. Other support differences between the two groups were of secondary importance. While there was no overall difference in the frequency of social interactions between the two groups, the size of the social network differed greatly. Consequences for the conceptualization and measurement of social support as well as for the prevention of suicidal behavior are discussed. 相似文献