全文获取类型
收费全文 | 83233篇 |
免费 | 3403篇 |
国内免费 | 38篇 |
专业分类
86674篇 |
出版年
2020年 | 834篇 |
2019年 | 1092篇 |
2018年 | 1470篇 |
2017年 | 1475篇 |
2016年 | 1610篇 |
2015年 | 1146篇 |
2014年 | 1362篇 |
2013年 | 6274篇 |
2012年 | 2530篇 |
2011年 | 2676篇 |
2010年 | 1639篇 |
2009年 | 1687篇 |
2008年 | 2322篇 |
2007年 | 2366篇 |
2006年 | 2147篇 |
2005年 | 1906篇 |
2004年 | 1784篇 |
2003年 | 1669篇 |
2002年 | 1779篇 |
2001年 | 2679篇 |
2000年 | 2650篇 |
1999年 | 1993篇 |
1998年 | 939篇 |
1997年 | 848篇 |
1996年 | 838篇 |
1995年 | 796篇 |
1993年 | 771篇 |
1992年 | 1667篇 |
1991年 | 1533篇 |
1990年 | 1519篇 |
1989年 | 1407篇 |
1988年 | 1395篇 |
1987年 | 1311篇 |
1986年 | 1375篇 |
1985年 | 1435篇 |
1984年 | 1200篇 |
1983年 | 1099篇 |
1982年 | 810篇 |
1979年 | 1280篇 |
1978年 | 923篇 |
1975年 | 1026篇 |
1974年 | 1152篇 |
1973年 | 1261篇 |
1972年 | 1081篇 |
1971年 | 987篇 |
1970年 | 886篇 |
1969年 | 925篇 |
1968年 | 1174篇 |
1967年 | 1061篇 |
1966年 | 925篇 |
排序方式: 共有10000条查询结果,搜索用时 6 毫秒
871.
This article attempts to apply a theory of aggression as motivation to overcome obstacles to the understanding of phobic states and their formation. The role of aggression in the genesis of phobic conditions is discussed, and the traditional analytic view of aggression as instinctual drive is contrasted with a motivational approach. The motivational view offers the advantage of a clearer understanding of the stimulus contexts, representational connections, and both real and imaginary object connections that are lacking in the more traditional understanding of aggression as a biological drive. 相似文献
872.
873.
Four of our own cases that presented a clinical picture of dementia are discussed. A study of the relative literature has failed to reveal any "swing" in the pattern of the clinical condition: Just as it did ninety years age, paralytic dementia accounts today for well over 60% of all cases, those clinical pictures erroneously regarded as "typical" "classic", accounting for a mere 10%-15% of cases. The need for routine lues serology is pointed out. 相似文献
874.
875.
876.
Mood effects on person-perception judgments 总被引:4,自引:0,他引:4
877.
Recipient's mood, relationship type, and helping 总被引:6,自引:0,他引:6
M S Clark R Ouellette M C Powell S Milberg 《Journal of personality and social psychology》1987,53(1):94-103
We conducted two studies to examine how a potential helper is affected by having a communal orientation toward a relationship with a potential recipient and by the potential recipient's sadness. We hypothesized that (a) having a communal orientation would increase helping and that (b) people high in communal orientation, but not others, would respond to a potential recipient's sadness by increasing helping. These hypotheses were tested in two studies. In Study 1, individual differences in communal orientation toward relationships were measured by using a new communal orientation scale reported for the first time in this article. In Study 2, manipulations were used to lead subjects to desire either a communal or an exchange relationship with another person. In both studies, subjects were exposed to a sad person or to a person in a neutral mood whom they were given a chance to help. As hypothesized, in both studies communally oriented subjects helped the other significantly more than did others. Also as hypothesized, in both studies communally oriented subjects but not others, increased helping in response to the other person's sadness although this effect reached statistical significance only in the second study. 相似文献
878.
This study explored the relationship among love deprivation, Performance greater than Verbal discrepancy, and violent crime in a sample of juvenile probationers. Love deprivation and P greater than V discrepancy was significantly related to violent delinquency after adjusting for the effects of both race and social class, two variables often closely associated with violent delinquency. Also, love deprivation was strongly related to P greater than V discrepancy. We speculated that high performance IQ scores relative to verbal scores are a function of a lack of disruption in the short-term memory mechanisms of high P greater than V subjects, that this nondisruption is a function of hyporeactive autonomic nervous systems, and that this hyporeactivity could itself be a function of early love deprivation. 相似文献
879.
The purpose of this study was to explore differences in body satisfaction among female adolescents 14 to 18 years of age. Principal components analysis of a body cathexis measure completed by 751 high school cheerleaders indicated that six factors defined the adolescents' attitudes toward their bodies: satisfaction with the midsection and overall appearance, peripheral body parts, hair and face, mouth, hands, and height. An Age X Body Satisfaction multivariate analysis of variance (MANOVA) was conducted; a Bonferroni adjusted alpha of .007 was established for subsequent ANOVAs. Satisfaction with the mouth increased significantly as age increased, and a similar but nonsignificant trend was found for peripheral body parts. The findings contradict previous research reporting no age differences in the body satisfaction of adolescents. Role demands and physical maturation of the cheerleaders may explain differences based on age. 相似文献
880.
J Pollak 《The Journal of psychology》1987,121(2):137-148
The nature of the relationship between obsessive-compulsive personality and obsessive-compulsive disorder has been the subject of considerable debate. The present article dealt with clinical opinion and reviewed empirical data bearing on this issue. It was concluded that, although the two clinical entities bear a surface similarity in terms of shared behavioral features and defenses, obsessive-compulsive personality is neither a necessary nor sufficient factor in the development of obsessive-compulsive disorder, though the latter appears to be more frequently associated with premorbid obsessive-compulsive personality patterns than with other personality patterns. Suggestions for future research study are made. 相似文献