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   1354篇
  免费   111篇
  2023年   12篇
  2022年   14篇
  2021年   19篇
  2020年   46篇
  2019年   51篇
  2018年   67篇
  2017年   70篇
  2016年   82篇
  2015年   41篇
  2014年   52篇
  2013年   175篇
  2012年   95篇
  2011年   73篇
  2010年   50篇
  2009年   40篇
  2008年   78篇
  2007年   60篇
  2006年   57篇
  2005年   55篇
  2004年   46篇
  2003年   43篇
  2002年   28篇
  2001年   13篇
  2000年   15篇
  1999年   14篇
  1998年   14篇
  1997年   15篇
  1996年   13篇
  1995年   17篇
  1994年   10篇
  1993年   13篇
  1992年   6篇
  1991年   2篇
  1990年   2篇
  1989年   4篇
  1988年   7篇
  1987年   3篇
  1986年   3篇
  1985年   6篇
  1984年   6篇
  1983年   5篇
  1982年   12篇
  1981年   5篇
  1980年   4篇
  1978年   2篇
  1977年   3篇
  1976年   4篇
  1975年   3篇
  1974年   4篇
  1973年   3篇
排序方式: 共有1465条查询结果,搜索用时 15 毫秒
201.
The present article describes two studies that examine the impact of teaching students to use gesture to support spatial thinking in the Science, Technology, Engineering, and Mathematics (STEM) discipline of chemistry. In Study 1 we compared the effectiveness of instruction that involved either watching gesture, reproducing gesture, or reading text. The results indicate that students in the reproducing gesture condition produced significantly more gestures while problem solving than students in the other two groups and significantly outperformed the other groups on study measures. In Study 2 we compared the effectiveness of gesture to an instructional approach that involved manually handling concrete models without gesture. Students performed equally well in both conditions; however, students taught with concrete models performed significantly worse if concrete models were not available during assessment. These studies show that gesture is an effective strategy for supporting spatial thinking in STEM disciplines and that this benefit may result from physically simulating spatial transformations.  相似文献   
202.
In this article, I consider the harms inflicted upon transgender persons through “misgendering,” that is, such deployments of gender terms that diminish transgender persons' self‐respect, limit the discursive resources at their disposal to define their own gender, and cause them microaggressive psychological harms. Such deployments are morally contestable, that is, they can be challenged on ethical or political grounds. Two characterizations of “woman” proposed in the feminist literature are critiqued from this perspective. When we consider what would happen to transgender women upon the broad implementation of these characterizations within transgender women's social context, we discover that they suffer from two defects: they either exclude at least some transgender women, or else they implicitly foster hierarchies among women, marginalizing transgender women in particular. In conclusion, I claim that the moral contestability of gender‐term deployments acts as a stimulus to regularly consider the provisionality and revisability of our deployments of the term “woman.”  相似文献   
203.
204.
Individuals with high intolerance of uncertainty (IU) have been shown to exhibit abnormal threat responding, which may be mediated by hyperactive anterior insula (aINS) response to uncertainty. Research has indicated that individuals with high IU also exhibit abnormal positive valence responding, suggesting that IU may impact responding to uncertainty regardless of the valence of the potential outcome. To date, no study has investigated the neural processes associated with IU and response to uncertain positive stimuli, such as rewards. Therefore, this study was designed to examine the association between individual differences in IU and neural activation during uncertain reward using functional magnetic resonance imaging (fMRI). Thirty-seven adults completed a self-report measure of IU and a reward task during fMRI. Consistent with the threat literature, greater IU was associated with increased aINS activation during uncertain reward. This association was more robust for the prospective IU subscale, a dimension characterized by worry about future events. Together with prior studies, these findings provide evidence that IU is related to abnormal threat and reward responding, and that these deficits may be similarly linked to hyperactive aINS response to uncertainty.  相似文献   
205.
Three experiments investigated whether spatial information acquired from vision and language is maintained in distinct spatial representations on the basis of the input modality. Participants studied a visual and a verbal layout of objects at different times from either the same (Experiments 1 and 2) or different learning perspectives (Experiment 3) and then carried out a series of pointing judgments involving objects from the same or different layouts. Results from Experiments 1 and 2 indicated that participants pointed equally fast on within- and between-layout trials; coupled with verbal reports from participants, this result suggests that they integrated all locations in a single spatial representation during encoding. However, when learning took place from different perspectives in Experiment 3, participants were faster to respond to within- than between-layout trials and indicated that they kept separate representations during learning. Results are compared to those from similar studies that involved layouts learned from perception only.  相似文献   
206.
We examined the relationships of father involvement to young children's perceived self-competence and fathers' and mothers' perceptions of their children's internalizing and externalizing behavioral problems. The results indicated that mothers in families in which father involvement is high may have a more positive outlook regarding their child's behavior than do mothers in families in which father involvement is low. Fathers who were highly involved indicated their children have more behavior problems than fathers who were not highly involved. High father involvement was associated with increased children's feelings of paternal acceptance, a factor that plays a role in the development of self-concept and esteem.  相似文献   
207.
208.
209.
210.
Objective: A common barrier to exercise is a perceived lack of time. The current pilot study examined the effects of an implementation intention intervention to enhance exercise self-efficacy, increase confidence to exercise when facing time constraints, and increase physical activity in middle-aged adults (n?=?63, aged 35–69). Design: Participants received a pedometer (Fitbit) to objectively measure activity and were randomly assigned to either a control or intervention condition. After a 1-week baseline, the intervention condition received instructions to plan how, where, and when they would add steps to their daily routine to meet their step goal, using personalised schedules and maps. Both groups were contacted nightly via email. Main Outcome Measures: Physical activity (steps and time spent in moderate-to-vigorous activity), goal achievement, exercise self-efficacy, time-relevant exercise self-efficacy and affect. Results: Compared to the control, the intervention condition significantly increased in steps, time spent in moderate-to-vigorous activity, and time-relevant exercise self-efficacy. Goal achievement was related to greater time-relevant exercise self-efficacy and more positive affect at the daily level. Conclusion: Findings suggest that the personalised planning intervention increased physical activity and confidence in achieving physical activity goals under time constraints. Avenues for future directions, especially for producing more sustained effects, are discussed.  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