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   793篇
  免费   14篇
教育   650篇
科学研究   24篇
各国文化   10篇
体育   37篇
文化理论   5篇
信息传播   81篇
  2021年   7篇
  2020年   5篇
  2019年   8篇
  2018年   20篇
  2017年   19篇
  2016年   18篇
  2015年   15篇
  2014年   21篇
  2013年   185篇
  2012年   24篇
  2011年   27篇
  2010年   17篇
  2009年   17篇
  2008年   19篇
  2007年   15篇
  2006年   14篇
  2005年   14篇
  2004年   17篇
  2003年   15篇
  2002年   26篇
  2001年   7篇
  2000年   15篇
  1999年   12篇
  1998年   5篇
  1997年   14篇
  1996年   13篇
  1995年   18篇
  1994年   13篇
  1993年   18篇
  1992年   6篇
  1991年   13篇
  1990年   9篇
  1989年   4篇
  1988年   8篇
  1987年   9篇
  1986年   10篇
  1985年   7篇
  1984年   10篇
  1983年   11篇
  1982年   11篇
  1981年   5篇
  1980年   5篇
  1979年   8篇
  1978年   11篇
  1977年   6篇
  1976年   13篇
  1975年   3篇
  1974年   5篇
  1971年   5篇
  1968年   3篇
排序方式: 共有807条查询结果,搜索用时 109 毫秒
21.
Research and theory concerning the value of play for children's development as well as current factors reducing the amount of play time that children experience are discussed. To ascertain play opportunities occurring in the schools, teachers' attitudes toward play, and provision of play for children in grades 1–6 were surveyed. The amount of recess time provided ranged from 0 to 65 min., with a mean of almost 19 min. Findings indicated that teachers from rural areas provided more play time than teachers from suburban areas, who in turn provided more play time than teachers in urban areas. Further, the amount of play time provided was influenced by the teachers' attitudes. That is, teachers who indicated generally positive attitudes toward play tended to allot more time for play in school. However, teachers from upper grade levels, who were more likely to perceive greater pressure to provide highly structured academic instructional programs, tended to de-emphasize the role and value of play and in turn allotted less time for play in school. The results of the present investigation demonstrate that children who are given less recess time are also likely to have teachers who report less positive attitudes toward play. It is recommended that school psychologists be aware of the adverse impact that restricted play opportunities may have on children's development. © 1996 John Wiley & Sons, Inc.  相似文献   
22.
23.
Abstract

A “look-up line” (LUL) has been proposed for ice hockey, which is an orange 1?m (40′) warning line (WL) painted on the ice at the base of the boards. The LUL purports to provide an early warning to players to keep their head up prior to and as they are being checked. We determined if players looked up more on a rink with the LUL compared to a traditional Control rink. Elite offensive (O) and defensive (D) players competed 1 vs. 1, while wearing an eye tracker that recorded their quiet eye (QE) and fixation and tracking (F-T) and an electrogoniometer that measured head angle. External cameras recorded skate duration during four skate phases: P1 preparation, P2 decision-making, P3 cut to boards, P4 contact. The QE was the final fixation prior to contact between O and D as they skated towards and across the WL during P3 and P4. Skate phase durations (%) did not differ by rink or rink by position. More QE and F-T occurred on the WL on the LUL rink than on the Control. The expected increase in head angle on the LUL rink did not occur during P3 or P4. Post-hoc results also showed O and D skated further from the boards on the LUL rink, suggesting the players preferred to control the puck on white ice, rather than the orange colour of the LUL rink. More research is needed to determine if these results apply to the competitive setting.  相似文献   
24.
25.
26.
27.
28.
29.
Grounded in the 2x2 achievement goal framework (Elliot & McGregor, 2001), a model was tested examining the hypothesized relationships between approach and avoidance (mastery and performance) goals, challenge and threat appraisals of sport competition, and positive and negative indices of well-being (i.e., self-esteem, positive, and negative affect). A further aim was to determine the degree to which the cognitive appraisals mediated the relationship between the four achievement goals and the indicators of athletes' welfare. Finally, measurement and structural invariance was tested with respect to gender in the hypothesized model. An alternative model was also estimated specifying self-esteem as an antecedent of the four goals and cognitive appraisals. Four hundred and twenty-four team sport participants (Mage=24.25) responded to a multisection questionnaire. Structural equation modeling analyses provided support for the hypothesized model only. Challenge and threat appraisals partially mediated the relationships observed between mastery-based goals and the well-being indicators. Lastly, the hypothesized model was found to be invariant across gender.  相似文献   
30.
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