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   2544篇
  免费   95篇
  2022年   15篇
  2021年   17篇
  2020年   41篇
  2019年   43篇
  2018年   54篇
  2017年   68篇
  2016年   49篇
  2015年   35篇
  2014年   51篇
  2013年   269篇
  2012年   82篇
  2011年   105篇
  2010年   78篇
  2009年   65篇
  2008年   92篇
  2007年   88篇
  2006年   90篇
  2005年   82篇
  2004年   86篇
  2003年   90篇
  2002年   89篇
  2001年   44篇
  2000年   57篇
  1999年   50篇
  1998年   44篇
  1997年   39篇
  1996年   35篇
  1995年   47篇
  1994年   36篇
  1993年   41篇
  1992年   29篇
  1991年   39篇
  1990年   23篇
  1989年   31篇
  1988年   23篇
  1987年   26篇
  1986年   34篇
  1985年   34篇
  1984年   39篇
  1983年   46篇
  1982年   31篇
  1981年   35篇
  1980年   20篇
  1979年   37篇
  1978年   24篇
  1977年   26篇
  1976年   27篇
  1975年   23篇
  1974年   14篇
  1973年   17篇
排序方式: 共有2639条查询结果,搜索用时 15 毫秒
121.
Subjects were assigned to use either three or six categories and were given either 5 or 10 trials in a word-sorting task. Subsequent to sorting, they recalled as many words as they could. A measure of sorting consistency showed that the six-category sort was a more difficult task than was the three-category sort. Number of categories did not have a significant effect on recall performance regardless of whether 5 or 10 sorting trials were used. A correlational analysis raised questions about the relationship of the sorting tasks to recall performance and clustering.  相似文献   
122.
Male hooded and albino rats were exposed to a light flash followed at various temporal intervals by a startle-eliciting 117 db. (re 20 muN/m2) burst of white noise. The visual stimulus engendered startle response inhibition (maximally when the lead time was 64-250 msec) as well as startle response latency reduction (maximally when the lead time was 2-8 msec). The temporal functions for the effects of visual stimuli paralleled those previously reported for startle modification by acoustic events. Further study revealed that, given optimal lead times, inhibition is produced reliably by weaker visual stimuli (3 X 10-6 cd-sec/cm2) than latency reduction (3 X 10-4 cd-sec/cm2). This differential sensitivity to visual stimuli is also analogous to previously reported findings for events in the acoustic environment. It reveals that the neural mechanisms that mediate latency reduction and inhibition can be engaged by either acoustic or visual stimulation.  相似文献   
123.
The present study compared the WISC and WISC-R on a group of psychiatric adolescent inpatients. The results indicated high intercorrelations between the two test versions but with the correlations linearly related to the changes in content and administration rules of the WISC-R. Analyses of variance indicated that, on the basis of the Full Scale IQ, the WISC is an easier test than the WISC-R.The authors gratefully acknowledge the assistance of Ms. Kathleen Lennox for her aid in data analysis and computer programming.  相似文献   
124.
125.
Frances Kamm's Principle of Secondary Permissibility (PSP) specifies a class of exceptions to the general rule not to kill as a means. The principle allows us to harm as a means some of those who would have been otherwise harmed as side effects. ‘For example, suppose it is impermissible to paralyze A's legs as a means to a greater good. It would still be permissible to do this as the alternative to permissibly killing A as a mere indirect side effect.’ I argue that, despite of its great appeal, PSP is incorrect; it is simply not true that the victims of substitutive harm are not worse off than they would otherwise permissibly have been. In fact, there is no moral difference between the purportedly substitutive harm licensed by PSP (and its extension) and the standard sort of harming as means repudiated by nonconsequentialists.  相似文献   
126.
This study is an investigation of the relationship between third grade final marks, achievement test scores, and subsequent achievement in elementary and secondary school. It was focused on the early identification of students for whom changes in the curriculum might be indicated.  相似文献   
127.
In this paper I discuss Jungian psychological work of the trauma and loss experienced in reaction to COVID-19 with a man who represents a clinical composite. The issues of precarity, a concept used by the philosopher Judith Butler, are combined with the notions of lack and absence of French psychoanalyst André Green. The psychological and societal situation of precarity aroused the man’s childhood issues that were long repressed. The loneliness, isolation and death from COVID-19 mirrored his personal and the collective responses to the disaster from this global pandemic. He felt on the edge of collapse as what he knew of his world crashed and he found himself unable to cope. The subsequent Jungian work taking place through the virtual computer screen was taxing and restorative simultaneously for both analyst and analysand.  相似文献   
128.
129.
Five male/two female rat colonies were established in visible burrow systems, with males selected for pregrouping attack scores and also evaluated in open field and cat odor tests. Dominant-subordinate pregrouping attack differences suggested that the males becoming dominant are those showing more persistent and higher level attack. For six colonies showing dominant-subordinate behavioral differences, pregrouping defense tests failed to predict subordinate status. However, pregrouping defense scores were reliably correlated with subordinate pre-postgrouping change scores for voluntary ethanol consumption. Subordinates showed higher ranked ethanol consumption than dominants, but these groups were not different on pregrouping ethanol consumption. Subordinate postgrouping ethanol consumption was positively correlated with pregrouping attack toward an adult intruder, consonant with previous findings that highly aggressive subordinates are the targets of more intense attack by dominants. These results provide further support for a view that subordination stress increases voluntary ethanol consumption in male rats and suggest some additional individual differences factors that may be involved in increased ethanol consumption for male subordinates. © 1992 Wiley-Liss, Inc.  相似文献   
130.
Peer Mentoring schemes tend to be developed as retention strategies, however, they can also serve other purposes (psychosocial or career-related). However, evidence of the effectiveness of these presents mixed results and less is known about the horizontal peer support schemes which may help students capitalize on existing peer relationships. We developed an integrated learning communities (ILC) peer support scheme, building on the theoretical principles of social identity theory, which we embedded within our existing teaching framework and designed functional activities. Collective activities were undertaken to promote the processes of social identity with the intention that these may foster social and academic integration experiences. This intervention was undertaken with an entire cohort of first year undergraduate psychology students. We conducted semi-structured interviews with a self-selected sample of these students (N = 17). Thematic analysis revealed two main themes, each with two sub-themes. These were: “Divergent Experiences” with the sub-themes of “dependent on people” and “types of support”, and “Good idea in principle” with the sub-themes of “Theory ≠ Practice” and “Dependent on student engagement”. Although identifying with a peer group was not transparent in the interviews, the existence of a peer support scheme was perceived positively by students which might explain the success of the newly developed student-led Psychology Society. Indeed, this Psychology Society can provide a lasting framework for further amplification of the student voice. We conclude that our embedded ILC was both feasible and potentially valuable, but it is crucial for the peer support approach to have transactional significance.  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