全文获取类型
收费全文 | 26224篇 |
免费 | 265篇 |
国内免费 | 2篇 |
专业分类
26491篇 |
出版年
2020年 | 71篇 |
2019年 | 89篇 |
2018年 | 3564篇 |
2017年 | 2893篇 |
2016年 | 2338篇 |
2015年 | 288篇 |
2014年 | 180篇 |
2013年 | 595篇 |
2012年 | 760篇 |
2011年 | 2579篇 |
2010年 | 2624篇 |
2009年 | 1577篇 |
2008年 | 1835篇 |
2007年 | 2298篇 |
2006年 | 166篇 |
2005年 | 318篇 |
2004年 | 273篇 |
2003年 | 219篇 |
2002年 | 177篇 |
2001年 | 230篇 |
2000年 | 243篇 |
1999年 | 168篇 |
1998年 | 74篇 |
1997年 | 60篇 |
1996年 | 55篇 |
1993年 | 53篇 |
1992年 | 112篇 |
1991年 | 112篇 |
1990年 | 114篇 |
1989年 | 94篇 |
1988年 | 89篇 |
1987年 | 93篇 |
1986年 | 98篇 |
1985年 | 103篇 |
1984年 | 90篇 |
1983年 | 71篇 |
1981年 | 55篇 |
1980年 | 56篇 |
1979年 | 108篇 |
1978年 | 56篇 |
1976年 | 62篇 |
1975年 | 76篇 |
1974年 | 102篇 |
1973年 | 91篇 |
1972年 | 75篇 |
1971年 | 78篇 |
1970年 | 76篇 |
1969年 | 82篇 |
1968年 | 75篇 |
1967年 | 88篇 |
排序方式: 共有10000条查询结果,搜索用时 0 毫秒
61.
62.
J V Montville 《Journal of the American Psychoanalytic Association》1989,37(2):297-318
The author reviews aspects of psychoanalytic theory which have helped him in his career as an American diplomat and political analyst. He cites the works of Erikson (1950, 1968, 1969), Volkan (1979, 1987), and Mack (1979, 1983) as especially helpful, and praises the late Jeanne Knutson, founder of the International Society of Political Psychology, for her work on the psychology of victimhood. The role and function of completed and incomplete mourning are discussed as fundamental aspects of unresolved ethnic and sectarian conflict, and the importance of asking and granting forgiveness in the resolution of violent political conflict is explored. The paper ends with a specific application of the meaning of forgiveness in the relationship between Christians and Jews. 相似文献
63.
Research-structured vs clinically flexible versions of social learning-based marital therapy 总被引:1,自引:0,他引:1
N S Jacobson K B Schmaling A Holtzworth-Munroe J L Katt L F Wood V M Follette 《Behaviour research and therapy》1989,27(2):173-180
The purpose of this study was to compare our structured research-based version of marital therapy from a social learning perspective with a clinically flexible version of the same treatment where treatment plans were individually-based and there was no specific number of treatment sessions. Thirty distressed married couples were randomly assigned to one of these two treatments. Assessment of outcome was based on global marital satisfaction, spouse reports of functioning in specific areas, and direct observational measures of communication. At posttest there were no differences in efficacy between structured and flexible treatments, although both treatments led to significant improvements. At a 6-month follow-up couples treated with the structured format were more likely to have deteriorated and flexibly treated couples were more likely to have maintained their treatment gains. 相似文献
64.
The field of infant perceptual development has relied heavily on the preferential-looking and habituation paradigms. Despite the obvious advantages of employing standardized methodologies, there is a need to study how perceptual variables give rise to and guide action beginning in the neonatal period. It is argued here that, in the first 5 months of life, it is important to distinguish reflexive patterns of movement from voluntary and cortically controlled patterns. Some criteria are defined. This paper describes three experiments which utilized movement counters to record developmental changes in the frequency and synchrony of limb movements in infants under 5 months. The results show that there is a general increase in frequency of limb movements from 1 to 5 months, but with a plateau or even a decrease in activity from the middle of the third month to the end of the fourth month. It was also demonstrated that synchrony scores (co-activation) for pairs of limbs showed significant increases from 1 month to 5 months. Finally, in all three experiments the presentation of an attractive toy resulted in suppression of activity. The results of the three experiments are interpreted to measure a gradual increase in cortically controlled movement patterns. 相似文献
65.
Late-middle-aged and elderly normal volunteers with past histories of Major Depression according to the Diagnostic and Statistical Manual of Mental Disorders (third edition-revised) criteria were compared with sex- and age-matched control subjects using topographic electroencephalographic (EEG) indices. Healthy, euthymic recovered depressed subjects showed greater alpha amplitudes than controls. Delta, theta, and beta amplitudes did not reliably distinguish the groups. Considered in the context of previous research indicating that actively depressed subjects exhibit elevated EEG alpha compared to controls, these findings raise questions concerning state and trait conceptualizations of depression and EEG alpha. 相似文献
66.
Twenty-eight boys and 28 girls at each of the Piagetian preoperational, concrete operational, and formal operational cognitive stages were given an interview focusing on their concepts of family. Half of each group were from intact families, and half were from divorced families. Interviews were scored for two structural aspects of the concept of family: conceptual level, and use of dimensions that structure the concept. The complexity of children's concepts was strongly related to cognitive stage and, to a lesser degree, to sex. Frequency of use of concept dimensions was strongly affected by general developmental level, though not specifically cognitive stage, and by intactness of family, but to a lesser degree by sex. Specific information is provided on the effect of these factors on perceptions of family composition, parental roles, and breadth of family activities. 相似文献
67.
Previous researchers using between-subjects comparisons have found eyewitness confidence and accuracy to be only negligibly correlated. In this study, we examined the predictive power of confidence in within-subject terms. Ninety-six subjects answered, and made confidence ratings for, a series of questions about a crime they witnessed. The average between-subjects and within-subject accuracy-confidence correlations were comparably low: r = .14 (p less than .001) and r = .17 (p less than .001), respectively. Confidence is neither a useful predictor of the accuracy of a particular witness nor of the accuracy of particular statements made by the same witness. Another possible predictor of accuracy, response latency, correlated only negligibly with accuracy (r = -.09 within subjects), but more strongly with confidence (r = -.27 within subjects). This pattern was obtained for both between-subjects and within-subject comparisons. The theoretical and practical implications of these results are discussed. 相似文献
68.
69.
70.