首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   40009篇
  免费   1597篇
  国内免费   14篇
  2020年   374篇
  2019年   419篇
  2018年   592篇
  2017年   599篇
  2016年   669篇
  2015年   501篇
  2014年   570篇
  2013年   2732篇
  2012年   1107篇
  2011年   1089篇
  2010年   691篇
  2009年   662篇
  2008年   996篇
  2007年   989篇
  2006年   846篇
  2005年   817篇
  2004年   783篇
  2003年   720篇
  2002年   729篇
  2001年   1279篇
  2000年   1234篇
  1999年   909篇
  1998年   411篇
  1992年   884篇
  1991年   821篇
  1990年   839篇
  1989年   720篇
  1988年   725篇
  1987年   697篇
  1986年   727篇
  1985年   801篇
  1984年   605篇
  1983年   561篇
  1982年   387篇
  1981年   374篇
  1980年   358篇
  1979年   710篇
  1978年   443篇
  1977年   440篇
  1976年   430篇
  1975年   601篇
  1974年   683篇
  1973年   732篇
  1972年   626篇
  1971年   588篇
  1970年   584篇
  1969年   564篇
  1968年   761篇
  1967年   674篇
  1966年   605篇
排序方式: 共有10000条查询结果,搜索用时 31 毫秒
241.
This paper suggests that aspects of paranoid character are structured around fantasies of magical and concrete connectedness to objects; these fantasies serve to avoid the terrors of object inconstancy. The authors describe how these fantasies are expressed in the psychoanalytic situation and explore their relation to common paranoid phenomena. The paranoid person must maintain these fantasies of connectedness at all cost or risk experiencing unbearable indifference between self and object. Paradoxically, the sacrifice of self and object boundaries inherent in these fantasies makes object constancy even more difficult to achieve because of the secondary defensive use of anger mobilized to protect the boundaries of the self.  相似文献   
242.
Our goal was to test whether current hemisphere predominance is a predictor of scores on standardized measures of personal optimism and preference for risk. In two between-subject experiments, current hemisphere predominance was measured by the direction and extent of line bisecting errors. Pearson correlations and median splits of the line bisecting errors showed significantly greater personal optimism and preference for risk with left hemisphere predominance. These results support previous research in which manipulation of hemisphere predominance produced similar effects on personal optimism in normal individuals and on risk taking in lesioned and normal samples. We conclude that the association of optimism and risk with left hemisphere predominance can be observed in resting as well as in manipulated situations.  相似文献   
243.
Seventh-grade students and teachers from twenty-three middle and junior high schools were surveyed to determine the association between teacher attitudes, behavioral intentions, and smoking behavior and the prevalence of student smoking. Teacher attitudes toward smoking policies were found to be strongly related to the current smoking behavior of the teacher but not consistently related to student smoking. In addition, teacher likelihood of intervening showed a modest association with teacher smoking status, with current smokers generally indicating being the least likely to intervene for student possession or use of cigarettes. Teacher intentions to intervene were strongly associated with the prevalence of smoking among boys but not girls.  相似文献   
244.
D Mates  K R Allison 《Adolescence》1992,27(106):461-474
A series of focus group interviews was used to identify major sources of stress and coping responses of Grade 10 students. Relationships with parents and family, work, and lack of money were found to be important sources of stress. Major coping responses included substance use and diversionary activities. Differences between academic streams (tracks) in sources of stress and coping responses were examined.  相似文献   
245.
The present study attempted to delineate factors that are associated with and may contribute to juvenile delinquency. Delinquents were compared to a matched control group of nonoffenders on a measure of mental health problems. Twenty-four male and female incarcerated juvenile offenders and 24 nonoffending adolescents were evaluated on the Revised Behavior Problem Checklist (RBPC). As expected, the offenders scored higher (an indication of more psychopathology) on the subscales of the RBPC which represent externalizing types of problems. The offenders also scored significantly higher on the subscales reflecting internalizing problems and psychotic behavior. The results of this study point to the importance of assessing and treating offenders, especially those who are incarcerated, for difficulties other than externalizing problems.  相似文献   
246.
247.
248.
To study malevolent representations, earliest memories were reliably coded on scales of affect tone. Ss were diagnosed with borderline personality disorder: 31 without and 30 with concurrent major depression. Nonborderline comparison subjects had either major depressive disorder (n = 26) or no psychiatric diagnosis (n = 30). Borderline subjects were discriminated from comparison subjects by their more malevolent representations; they more frequently produced memories involving deliberate injury; and they portrayed potential helpers as less helpful. Results suggest the diagnostic significance of malevolent representations, which need to be explained by any theory of borderline personality disorder.  相似文献   
249.
The author shows how object relations group therapy focuses on primitive defense mechanisms that shape the group-entity image or "basic assumptions group." Such primitive defense mechanisms as splitting, projective identification, omnipotent denial, projection, and introjection are the mental resources to protect the endangered self and the threatened objects from the fantasized imminent destruction. Object relations group psychotherapy addresses those defenses and the underlying psychotic anxieties, offering members opportunities to search for other ways to respond to their primitive fears. The author introduces two extensive clinical vignettes to illustrate how object relations group methods are different from other group-centered psychoanalytic techniques. He concludes by commenting on future theoretical refinements and on the problems in the professional practice of this modality.  相似文献   
250.
We investigated in a sample of 75 medical students the hypothesis that higher levels of self-criticism, a major vulnerability factor for depression, are related to retrospective reports of less satisfactory parenting, even when the potentially confounding factors of mood state and social desirability response set are controlled. At each of 2 measurement times, there were significant cross-sectional correlations between parental ratings and both depression and self-criticism, but the associations with self-criticism were no longer significant when depression was controlled. However, even after controlling for the effects of mood state and social desirability, persons with high levels of self-criticism at both measurement points (high trait self-criticism subjects) reported significantly worse relationships with their mothers than did the remaining subjects. They were also more likely to report below average relationships with both parents jointly.  相似文献   
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号