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   538篇
  免费   13篇
教育   403篇
科学研究   32篇
各国文化   7篇
体育   24篇
综合类   1篇
文化理论   2篇
信息传播   82篇
  2023年   5篇
  2022年   4篇
  2021年   3篇
  2020年   16篇
  2019年   23篇
  2018年   17篇
  2017年   23篇
  2016年   21篇
  2015年   16篇
  2014年   15篇
  2013年   121篇
  2012年   16篇
  2011年   17篇
  2010年   18篇
  2009年   9篇
  2008年   12篇
  2007年   21篇
  2006年   10篇
  2005年   8篇
  2004年   12篇
  2003年   6篇
  2002年   4篇
  2001年   5篇
  2000年   6篇
  1999年   12篇
  1998年   4篇
  1997年   7篇
  1996年   3篇
  1995年   3篇
  1993年   4篇
  1992年   3篇
  1990年   3篇
  1989年   6篇
  1988年   6篇
  1987年   5篇
  1985年   8篇
  1983年   3篇
  1982年   3篇
  1981年   5篇
  1979年   3篇
  1977年   4篇
  1973年   3篇
  1972年   4篇
  1969年   3篇
  1968年   6篇
  1967年   4篇
  1920年   3篇
  1865年   4篇
  1855年   2篇
  1840年   2篇
排序方式: 共有551条查询结果,搜索用时 15 毫秒
11.
Learning & Behavior - The effect of the level of captivity and prior social experience on the establishment of dominance was examined in 16 colonies of albino rats. Males were assigned to one...  相似文献   
12.
Kenya—East African nation of big game, tourism, thorn trees, and white sand beaches—is facing a new challenge in preschool education. With nearly 20 percent of the children under five in some type of child care situation, it is possible that everyday preschool experiences may be leading children either closer to, or away from, the values of their parents. The test for this relatively new nation is to find the proper balance between the goals of the preschool and the values of both traditional and modernized parents. It is a topic of equal importance in any nation where a great many preschoolers are cared for by persons other than their parents.  相似文献   
13.
14.
15.
In this article I critically examine the historical context of science education in a natural history museum and its relevance to using museum resources to teach science today. I begin with a discussion of the historical display of race and its relevance to my practice of using the Museum’s resources to teach science. I continue with a critical review of the history of the education department in a natural history museum to demonstrate the historical constitution of current practices of the education department. Using sociocultural constructs around identity formation and transformation, I move to the present with a case study of a teacher who transforms the structure of science education in her classroom and school as a result of her identity transformation and association with a museum-based professional education program.
Jennifer D. AdamsEmail:
  相似文献   
16.
Two studies were conducted to investigate how 14- to 16-month-old infants select actions to imitate from the stream of events. In each study, an experimenter demonstrated two actions leading to an interesting effect. Aspects of the first action were manipulated and whether infants performed this action when given the objects was observed. In both studies, infants were more likely to imitate the first action when it was physically necessary to generate the effect, and in Study 2 they were also more likely to imitate the action when it was socially cued. It seems that infants' own knowledge of space and causality as well as their sensitivity to others' social signals both contribute to their tendency to imitate actions.  相似文献   
17.
Do you regularly reflect on the value you bring to your client? The act of reflection is something experienced consultants, both internal and external, consistently do in their practice. This article examines the ways in which Certified Performance Technologists (CPTs) define and recognize the success of their efforts, but most importantly, how they learn from engagements that do not always end with the desired outcome. You will hear from CPTs across several industries in their own words about what strategies they have employed to continue to improve their skill sets.  相似文献   
18.
19.
20.
This study examined the separate and combined effects of heat acclimation and hand cooling on post-exercise cooling rates following bouts of exercise in the heat. Seventeen non-heat acclimated (NHA) males (mean ± SE; age, 23 ± 1 y; mass, 75.30 ± 2.27 kg; maximal oxygen consumption [VO2 max], 54.1 ± 1.3 ml·kg?1·min?1) completed 2 heat stress tests (HST) when NHA, then 10 days of heat acclimation, then 2 HST once heat acclimated (HA) in an environmental chamber (40°C; 40%RH). HSTs were 2 60-min bouts of treadmill exercise (45% VO2 max; 2% grade) each followed by 10 min of hand cooling (C) or no cooling (NC). Heat acclimation sessions were 90–240 min of treadmill or stationary bike exercise (60–80% VO2 max). Repeated measures ANOVA with Fishers LSD post hoc (α < 0.05) identified differences. When NHA, C (0.020 ± 0.003°C·min?1) had a greater cooling rate than NC (0.013 ± 0.003°C·min?1) (mean difference [95%CI]; 0.007°C [0.001,0.013], P = 0.035). Once HA, C (0.021 ± 0.002°C·min?1) was similar to NC (0.025 ± 0.002°C·min?1) (0.004°C [?0.003,0.011], P = 0.216). Hand cooling when HA (0.021 ± 0.002°C·min?1) was similar to when NHA (0.020 ± 0.003°C·min?1) (P = 0.77). In conclusion, when NHA, C provided greater cooling rates than NC. Once HA, C and NC provided similar cooling rates.  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