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   6815篇
  免费   209篇
  国内免费   4篇
  7028篇
  2018年   121篇
  2017年   97篇
  2016年   102篇
  2015年   79篇
  2014年   84篇
  2013年   557篇
  2012年   195篇
  2011年   187篇
  2010年   99篇
  2009年   114篇
  2008年   158篇
  2007年   180篇
  2006年   162篇
  2005年   159篇
  2004年   142篇
  2003年   132篇
  2002年   143篇
  2001年   228篇
  2000年   218篇
  1999年   157篇
  1998年   67篇
  1996年   79篇
  1993年   64篇
  1992年   129篇
  1991年   136篇
  1990年   123篇
  1989年   113篇
  1988年   102篇
  1987年   109篇
  1986年   124篇
  1985年   122篇
  1984年   106篇
  1983年   94篇
  1982年   64篇
  1981年   68篇
  1979年   104篇
  1978年   84篇
  1977年   68篇
  1976年   72篇
  1975年   80篇
  1974年   100篇
  1973年   112篇
  1972年   79篇
  1971年   80篇
  1970年   87篇
  1969年   80篇
  1968年   110篇
  1967年   86篇
  1966年   100篇
  1958年   63篇
排序方式: 共有7028条查询结果,搜索用时 0 毫秒
91.
A double-blind experiment with 58 adults tested the hypothesis that proximity to sugar reduces human grip strength. An analysis of variance supported the hypothesis.  相似文献   
92.
93.
One of the most serious psychosocial problems worldwide is substance abuse because of its repercussions not only on the physical and psychological health of the abuser but also on their relational functioning. Among the well-established therapeutic approaches for the treatment of substance abuse is family therapy, which, in addition to influencing personal variables, promotes changes in family dynamics. The main objective of this study is to review the scientific literature published from 2010 to the present on the efficacy and effectiveness shown by family-based treatment approaches for substance use problems both in adolescent and adult samples. In addition, the effect on secondary variables such as family functioning and behavioral problems is evaluated. The empirical evidence accumulated in the last decade and reviewed in the present study indicates that the incorporation of family members in the treatment of substance abuse produces benefits by diminishing consumption and improving family functioning. Limitations of this study and of the research reviewed are discussed and directions for future research are provided.  相似文献   
94.
In this article, I reply to the comments offered by R. Jay Wallace, Matthieu Queloz, and Claire Kirwin on my book, The Will to Nothingness. An Essay on Nietzsche's Genealogy of Morality (OUP, 2021). These comments and my replies cover central features of the book, including my analysis of ressentiment as an expression of the will to power; the concept of self-undermining functionality I introduce to make sense of Nietzsche's critique of the ascetic ideal; and my reasons for omitting to examine the “unconditional will to truth,” which he presents as the latest embodiment of this ideal.  相似文献   
95.
Animal Cognition - Self-handicapping behaviors evolved as honest signals that reliably reflect the quality of their performers. In playful activities, self-handicapping is described as...  相似文献   
96.
Few studies have evaluated best friendship dissolutions and especially the circumstances surrounding the dissolutions. In this exploratory study of young adolescents (N = 273, Mage = 11.83 years; 51% boys), we investigate young adolescents' experiences with two types of best friendship dissolution (complete dissolutions, downgrade dissolutions) and two characteristics of such experiences: initiation status (self- versus friend-initiation) and emotional reactions (degree of happiness, anger, sadness, and embarrassment). We also consider whether these characteristics of best friendship dissolutions are related to psychological difficulties (loneliness, depressive symptoms). Results indicated that most young adolescents perceive their friends initiated their recent complete and downgrade dissolutions. When young adolescents did initiate their complete dissolutions, however, they reported less negative (anger) and more positive (happiness) emotional responses. Initiation status was not related to psychological difficulties, but variability in several types of emotional responses (e.g., embarrassment) was related to variability in loneliness and depressive symptoms. Findings underscore the importance of considering not only the type of dissolution, but also the circumstances surrounding dissolutions, during early adolescence.  相似文献   
97.
98.
99.
An investigation is reported into pausing and grouping during the serial learning of letter strings, when presented randomly by length and when presented in ascending order. Mean pause times for the reading and recall of longer lists were significantly greater than for lists of shorter span due to extended pausing at specific list positions. In general, reading rhythms were duplicated during recall. Subjects were highly consistent in maintaining their level of pause duration across lists and responded to additions in list length by increasing their number of groups, not by increasing group size. Triadic sequences were the most popular form of spontaneous organization. Pausing measures are discussed as indices of organizational strategies.  相似文献   
100.
Average evoked brain responses were computed from four simultaneous recordings during binaural tone stimulation at 10 intensity levels. Amplitudes and latencies were measured for the prominent components, and linear regression coefficients were computed. The results indicate that the sensitivity of the evoked response to stimulus intensity is dependent upon the selection of the appropriate measure. Linear amplitude functions were demonstrated. Additional research relating these responses to psychophysical measures is suggested.  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