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   499篇
  免费   43篇
  542篇
  2024年   6篇
  2023年   10篇
  2022年   5篇
  2021年   11篇
  2020年   16篇
  2019年   17篇
  2018年   30篇
  2017年   39篇
  2016年   16篇
  2015年   16篇
  2014年   16篇
  2013年   54篇
  2012年   44篇
  2011年   31篇
  2010年   17篇
  2009年   8篇
  2008年   20篇
  2007年   22篇
  2006年   15篇
  2005年   9篇
  2004年   8篇
  2003年   16篇
  2002年   10篇
  2001年   7篇
  2000年   4篇
  1999年   6篇
  1998年   6篇
  1997年   7篇
  1996年   3篇
  1995年   3篇
  1994年   3篇
  1993年   6篇
  1992年   8篇
  1991年   2篇
  1990年   5篇
  1989年   5篇
  1988年   4篇
  1987年   6篇
  1986年   3篇
  1985年   4篇
  1984年   5篇
  1983年   3篇
  1979年   2篇
  1977年   2篇
  1970年   1篇
  1967年   1篇
  1965年   2篇
  1964年   1篇
  1963年   2篇
  1933年   1篇
排序方式: 共有542条查询结果,搜索用时 0 毫秒
441.
Science and Engineering Ethics - A very important event took place on January 15, 2017. On that day, the Jeffrey Beall blog ( www.scholarlyoa.com ) was silently, and suddenly, shut down by Beall...  相似文献   
442.
443.
444.
445.
The Good Behavior Game (GBG) is an effective intervention to reduce disruptive behavior. The GBG typically involves immediate stimulus presentation (e.g.., delivery of a token) following disruptions; however, experimenters have also removed tokens contingent upon disruptions. In the present study, we compared the effects of the GBG-stimulus presentation (P) and GBG-stimulus removal (R) on levels of disruptions in a 2nd-grade general education classroom. In addition, we measured student prompts, teacher praise and correctives, and student and teacher preference. The GBG-P and GBG-R versions of the game were similarly effective in reducing disruptions. However, the teacher chose to implement the GBG-R and the majority of students reported a preference for the GBG-R.  相似文献   
446.

Although psychopathy has historically been associated with a lack of emotion, recent research has suggested that psychopathy may represent a tendency to externalize the experience of unpleasant emotions, including shame, which could be seen as an adaptive strategy within an evolutionary framework. However, more empirical research is needed to build on this argument. This study tested a novel evolutionary-based model involving pathways associating the impact of harsh rearing experiences (warmth and safeness experiences and traumatic shameful experiences) with psychopathic traits as well as the indirect effects of external shame and shame coping strategies in this association. This study also tested the invariance of this model across gender. A youth community sample (N = 703; 58.9% girls) completed self-report questionnaires on the impact of harsh rearing experiences, external shame, shame coping strategies, and psychopathic traits. The results suggested that the impact of harsh rearing experiences was directly and indirectly (through external shame and shame coping strategies) associated with psychopathic traits. The model partially explained the endorsement of psychopathic traits in boys and girls, although gender differences were found in some of the pathways. These findings offer support for conceptualizing psychopathic traits as an adaptive strategy to cope with the impact of harsh rearing experiences, opening new perspectives for prevention and treatment.

  相似文献   
447.
Our purpose in this paper is to delineate an ontology for quantum mechanics that results adequate to the formalism of the theory. We will restrict our aim to the search of an ontology that expresses the conceptual content of the recently proposed modal-Hamiltonian interpretation, according to which the domain referred to by non-relativistic quantum mechanics is an ontology of properties. The usual strategy in the literature has been to focus on only one of the interpretive problems of the theory and to design an interpretation to solve it, leaving aside the remaining difficulties. On the contrary, our aim in the present work is to formulate a “global” solution, according to which different problems can be adequately tackled in terms of a single ontology populated of properties, in which systems are bundles of properties. In particular, we will conceive indistinguishability between bundles as a relation derived from indistinguishability between properties, and we will show that states, when operating on combinations of indistinguishable bundles, act as if they were symmetric with no need of a symmetrization postulate.  相似文献   
448.
In enforcing the Civil Rights Acts of 1964 and 1991, it is often critical to determine whether a challenged procedure has systematic adverse impact. The use of statistical significance tests to make this determination has the perverse consequence that the size of an organization or an applicant pool has more impact on determining adverse impact than the extent to which procedures actually discriminate. That is, it is worse to be big than to be bad. We use Monte Carlo studies to illustrate this unforeseen consequence of current enforcement policies and note that a broader definition of adverse impact is clearly warranted.  相似文献   
449.
Abstract

Three experiments studied the long-term retention of parking locations. In Experiment 1, members of the Applied Psychology Unit (MU) attempted to recall where they had parked during the morning and afternoon of each of the previous 12 working days. A marked recency effect was observed. In Experiment 2, members of the APU Subject Panel were invited for a single test session, and asked where they had parked after a delay of 2 hours, 1 week or 1 month. Recall was excellent and did not differ as a function of delay, allowing a simple trace decay interpretation to be ruled out. A third experiment invited subjects to attend on two occasions separated by a 2-week interval. The subjects were then required to recall their parking locations some 4 weeks after either their first visit or their second visit. Performance in both groups was inferior to that observed in Experiment 2, and declined over time. A temporal discrimination model, based on laboratory studies of both long-term and short-term recency in free recall, offers a plausible explanation of our results.  相似文献   
450.
Aiming movements are part of daily activities but the brain hemispheres’ role in targeted aiming sequential movements is not fully clear. Start and execution of discrete and sequential tasks toward targets were analyzed in 10 individuals with left-hemisphere damage, 10 right-hemisphere–damaged, and 10 healthy ones. Arm movements were performed over a digitizing tablet, following stimuli on a monitor, from initial position toward right and left-positioned targets. Poststroke individuals used their ipsilesional arm and healthy individuals, both arms. Right-hemisphere–damaged individuals showed higher reaction time and left-hemisphere–damaged individuals, lower smoothness. Due to spatial demand of tasks, the right hemisphere played a major role in movement planning, while the left, in movement execution.  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