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   699篇
  免费   11篇
教育   544篇
科学研究   18篇
各国文化   10篇
体育   80篇
综合类   1篇
文化理论   8篇
信息传播   49篇
  2022年   4篇
  2021年   8篇
  2020年   11篇
  2019年   16篇
  2018年   25篇
  2017年   30篇
  2016年   28篇
  2015年   16篇
  2014年   21篇
  2013年   163篇
  2012年   20篇
  2011年   19篇
  2010年   15篇
  2009年   19篇
  2008年   14篇
  2007年   22篇
  2006年   13篇
  2005年   14篇
  2004年   11篇
  2003年   13篇
  2002年   15篇
  2001年   9篇
  2000年   12篇
  1999年   6篇
  1998年   6篇
  1997年   11篇
  1996年   5篇
  1994年   12篇
  1993年   15篇
  1992年   4篇
  1991年   11篇
  1990年   4篇
  1989年   6篇
  1988年   5篇
  1987年   7篇
  1986年   5篇
  1985年   4篇
  1983年   7篇
  1982年   4篇
  1981年   6篇
  1980年   6篇
  1979年   5篇
  1978年   10篇
  1976年   6篇
  1974年   10篇
  1973年   3篇
  1972年   3篇
  1971年   3篇
  1969年   3篇
  1967年   3篇
排序方式: 共有710条查询结果,搜索用时 422 毫秒
81.
82.
The problem was to determine how rats adjust the times of their lever responses to repeating sequences of interfood intervals. In Experiment 1, rats were trained on an interval schedule of reinforcement with a 12-element Fleshler-Hoffman series with a mean of 60 sec; the order was as follows: ascending, random with repetition, random with replacement, random without replacement. In Experiment 2, rats were trained with a 10-element ascending or descending series (from 20 to 29 sec), and in a ramp procedure in which these intervals increased and then decreased repeatedly. In the ascending, descending, and ramp conditions (but not in the random conditions), postreinforcement pause (PRP) was a function of the interval. PRP was most highly correlated with an interval later in the series. Theories of conditioning and timing based on the averaging of past experience must be modified to account for such anticipatory behavior.  相似文献   
83.
Despite mixed results in research on student learning from drawing in science, there is growing interest in the potential for this visual mode, in tandem with other modes, to enact and enable student reasoning in this subject. Building on current research in this field, and using a micro-ethnographic approach informed by socio-semiotic perspectives, we aimed to identify how and why student drawing can contribute to student reasoning and learning. In our study, secondary school students were challenged to explore and collaboratively create explanatory representations of phenomena including through drawing. Data were generated using multiple wall- and ceiling-mounted cameras capable of continuously tracking groups of students negotiating these representational challenges. Our analysis proceeded through active and iterative viewing of the extensive video record, and the identification of themes to establish possible relationships between drawing and reasoning. Through this process, we (a) identify multiple necessary conditions and varied opportunities for student drawing to enact and enable reasoning, and (b) extend current understandings of how the particular affordances of this mode interact with these conditions to contribute to student learning in science.  相似文献   
84.
85.
In this column, a father and a mother each share their unique version of their son''s natural birth.  相似文献   
86.
87.
As the number of young children displaying challenging behavior in early childhood grows, so too does the need to implement evidence-based practices that prevent challenging behavior. Positive Behavior Support (PBS) provides a framework of tiered interventions focused on promoting social-emotional development and preventing challenging behavior. This study investigated the effects of consultation on teachers’ implementation of universal PBS practices and children’s academic engagement. A multiple-baseline design was applied across four preschool classrooms serving children from 33 to 63 months of age. A strong relationship was documented between consultation and teachers’ implementation of PBS skills. High levels of academic engagement were maintained following consultation. Implications of the results are provided for applications of universal PBS practices in early childhood settings.  相似文献   
88.
The development of talented athletes is a priority for many countries across the world, including China. A validated Chinese 5-factor Talent Development Environment Questionnaire (TDEQ-5) would go some way in helping researchers and practitioners investigate talent development systems within China from an evidence-based perspective. For this purpose, the 25-item English TDEQ-5 was translated to Chinese through a standardised process. The translated scale was then administered to 538 talented Chinese youth athletes. Confirmatory factor analysis revealed adequate model fit of the scale. The internal reliability, concurrent and discriminant validity, and test–retest reliability of the scale were adequately supported. The scale was also invariant across gender. It is recommended that the Chinese TDEQ-5 can be used with confidence in both applied and research settings.  相似文献   
89.
90.
This paper discusses one aspect of competitive youth team soccer in the US: the tension between loyalty and success. Teams use rituals to encourage parents and players to place loyalty to the team over individual goals and self-interest. But competitive teams value team success over loyalty to its players. And youth learn to place self-interest over loyalty to the team, even at the cost of friendships. This becomes an important lesson for youth in a competitive economic system, where success in adulthood is often defined in economic terms. Thus, competitive youth soccer reproduces an upper-middle-class habitus familiar to many of the families that participate in youth sports in the US. The pursuit of desirable careers typically demands geographic mobility and the routine abandonment of significant others. It is a taken for granted aspect of the upper middle-class worldview, learned at a young age in competitive team sports such as soccer.  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