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   121505篇
  免费   1868篇
  国内免费   238篇
教育   84512篇
科学研究   13404篇
各国文化   2015篇
体育   9325篇
综合类   170篇
文化理论   1082篇
信息传播   13103篇
  2022年   519篇
  2021年   934篇
  2020年   1663篇
  2019年   2593篇
  2018年   3079篇
  2017年   3361篇
  2016年   3393篇
  2015年   2343篇
  2014年   3212篇
  2013年   27588篇
  2012年   2364篇
  2011年   2693篇
  2010年   2329篇
  2009年   2629篇
  2008年   2375篇
  2007年   2116篇
  2006年   2344篇
  2005年   2335篇
  2004年   3028篇
  2003年   2357篇
  2002年   2174篇
  2001年   2002篇
  2000年   1674篇
  1999年   1552篇
  1998年   1473篇
  1997年   1535篇
  1996年   1717篇
  1995年   1482篇
  1994年   1478篇
  1993年   1478篇
  1992年   1485篇
  1991年   1394篇
  1990年   1385篇
  1989年   1315篇
  1988年   1185篇
  1987年   1097篇
  1986年   1146篇
  1985年   1408篇
  1984年   1273篇
  1983年   1264篇
  1982年   1258篇
  1981年   1175篇
  1980年   1160篇
  1979年   1234篇
  1978年   1039篇
  1977年   961篇
  1976年   862篇
  1975年   697篇
  1974年   694篇
  1973年   678篇
排序方式: 共有10000条查询结果,搜索用时 562 毫秒
991.
992.
Informed by the latest research on how people learn, effective teachers address both aspects of the teaching–learning equation—they engage students in the course material by implementing best teaching practices and they prepare students for learning by sharing best learning practices. The purpose of this study was to evaluate the impact of student‐centered learning practices on students’ perceptions of their ability to learn, specifically in a large enrollment, introductory food science and human nutrition course. Featured student‐centered learning practices included required assignments, optional study tools, and supplemental learning resources. A mixed method survey instrument with 5‐point Likert scales and qualitative, open‐ended questions was used to determine students’ (1) use of optional study tools and supplemental learning resources; (2) perceptions as to the quality and impact of required assignments, optional study tools, and supplemental learning resources to enhance their ability to learn; (3) perceptions as to the usefulness of required assignments, optional study tools, and supplemental learning resources to help them perform better in this course; and (4) overall satisfaction, as a learner, in this course. Overall, students identified study guides (developed using Bloom's taxonomy action verbs) (Mean = 4.34), microthemes (Mean = 4.27), and quizzes (Mean = 4.11) as the most beneficial resources to enhance their learning of the course material. Overall, 85% of students said they were extremely or very satisfied as learners in the course and nearly 75% of the students said the student‐centered learning practices should be offered to future FSHN 101 students.  相似文献   
993.
Educational Psychology Review - In his 1973 article The Structure of ill structured problems, Herbert Simon proposed that solving ill-structured problems could be modeled within the same...  相似文献   
994.
ABSTRACT

This study aimed to assess the effect of playing surface (Natural [NT] and Artificial [AT] Turf) on the fatigue response to a soccer-specific exercise protocol (SSEP). Eighteen male soccer players completed the SSEP on NT and AT with pre-, post-, and 48 h post-assessments of eccentric knee flexor (eccKF) and concentric knee extensor peak torque (PT), peak countermovement (CMJ) and squat jump (SJ) height, and Nordic hamstring break angle. No significant main effects for surface or any surface and time interactions were observed for any of the outcome measures, except for eccKF PT recorded at 3.14 rad·s-1, which was significantly lower 48 h post-trial in the AT condition (AT = 146.3 ± 20.4 Nm; NT = 158.8 ± 24.7 Nm). Main effects for time were observed between pre- and post-trial measures for eccKF PT at all angular velocities, Nordic break angle, CMJ and SJ height. Nordic break angle, and both CMJ and SJ height were significantly impaired 48 h post-trial when compared to pre-trial. The findings of the current study suggest surface dependent changes in eccKF PT which may have implications for recovery and subsequent performance after competition on AT.  相似文献   
995.
996.
Data from surveys of parents of students in Russian schools of various types in the years 2006 to 2011 show a high level of desire to invest in their children's education. There has been a high degree of stability in aspirations and investment in spite of the economic problems caused by global recession.  相似文献   
997.
998.
999.
1000.
Counselors (N = 911) reported the research skills needed for practice and subsequent research training needs. Findings indicate that counselors have a high need for research skills at work, but training needs differ significantly by counselor type. Recommendations include increasing emphasis on single‐case design, survey design, and widely available data analysis tools.  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