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   1473篇
  免费   28篇
教育   1195篇
科学研究   59篇
各国文化   29篇
体育   56篇
文化理论   11篇
信息传播   151篇
  2023年   6篇
  2022年   6篇
  2021年   15篇
  2020年   28篇
  2019年   34篇
  2018年   31篇
  2017年   47篇
  2016年   45篇
  2015年   34篇
  2014年   32篇
  2013年   355篇
  2012年   36篇
  2011年   45篇
  2010年   43篇
  2009年   42篇
  2008年   40篇
  2007年   32篇
  2006年   32篇
  2005年   47篇
  2004年   36篇
  2003年   25篇
  2002年   44篇
  2001年   23篇
  2000年   36篇
  1999年   19篇
  1998年   13篇
  1997年   13篇
  1996年   27篇
  1995年   13篇
  1994年   23篇
  1993年   29篇
  1992年   17篇
  1991年   25篇
  1990年   16篇
  1989年   14篇
  1988年   16篇
  1987年   10篇
  1986年   14篇
  1985年   11篇
  1984年   9篇
  1983年   14篇
  1982年   6篇
  1981年   10篇
  1980年   20篇
  1979年   11篇
  1978年   11篇
  1977年   6篇
  1976年   8篇
  1975年   5篇
  1973年   5篇
排序方式: 共有1501条查询结果,搜索用时 15 毫秒
31.
To identify professional groups that are providing psychological services in the schools, the present national survey of state departments of education was conducted. Fifty-nine percent of states currently mandate services of school psychologists by law, and a variety of allied professional groups were identified as also providing psychological services in the schools. Specific information about provider groups and service mandates is reported. Recommendations relevant to the provision of quality school-psychological services and utilization of multiple providers are given.  相似文献   
32.
Recent research related to the design of science instruction is often based on conceptual change theory and requires assessments of what knowledge students bring to instruction. The premise of this study was that it is also important to understand when and how students apply their knowledge. Fourteen elementary and middle school teachers in an in-service physics course were asked to solve qualitatively a variety of series and parallel circuit problems and explicate their reasoning. These teachers were found to share a common core of strongly held propositions that formed a coherent, but incorrect and contradictory model of sequential current flow. Yet their predictions about the circuits were highly variable. The variability in predictions resulted from differences and contradictions in additional “protective belts” of propositions, and differences in the ways in which the teachers changed and selectively applied those propositions to different problems. Understanding the variations in not only what teachers knew, but also the differences in when and how they applied their knowledge complicated the task of designing instruction. However, it also made possible the design of more precise instruction in which the teachers were required to recognize, confront, and reconcile specific inconsistencies in their beliefs.  相似文献   
33.
34.
35.
36.
Substitution of slate roofing tiles is a conventional operation during building restoration, since tiles are very difficult to restore or clean because of the high degree of alteration they suffer. Criteria for replacement of historical building stones must be based on geological, geotechnical and esthetic parameters, among which color is of great importance. In this sense, this paper constitutes a comprehensive and useful colorimetric study of roofing slates from the Iberian Peninsula, for the purposes of restoration. The color of 50 commercial varieties of roofing slate mined in quarries from the 12 mining districts in the Iberian Peninsula was analyzed with a spectrophotometer device, by considering the CIELAB color space. The results of the study were used to develop a protocol for characterizing the color of roofing slate and to define the color range of roofing slate from the Iberian Peninsula. In addition, the similarities and differences in the color and microstructure of the different commercial varieties of Iberian roofing slate were established and the limit of acceptability of replacement of one type of slate by another was determined. Parameter hab was found to be the most important CIELAB color coordinate as regards the formation of homogeneous color groups, and the specular component excluded (SCE) mode was most sensitive as regards detecting color differences between two samples.  相似文献   
37.
Clutch performance is improved performance under pressure. However, little research has examined the psychological state experienced by athletes in these situations. Therefore, this study qualitatively examined the subjective experience underlying clutch performance across a range of sports (e.g., team, individual) and standards (Olympic to recreational athletes). Sixteen athletes (Mage = 27.08 years; SD = 6.48) took part in in-depth, semi-structured interviews primarily after an exceptional performance (M = 4.38 days later; SD = 3.14). Data were analysed inductively and thematically. Clutch states involved 12 characteristics, including heightened and deliberate concentration, intense effort, and heightened awareness, which distinguished the experience of clutch from other optimal psychological states such as flow. Other characteristics, such as perceptions of control, were also reported and supported previous experimental research on clutch. These findings present in-depth qualitative insights into the psychological state underlying clutch performance, and are discussed in relation to the existing literature on optimal psychological states in sport.  相似文献   
38.
Abstract

This paper is a personal account of the author’s interest in the field of sports history and its emergence in Argentina. It explores several prejudices and misunderstandings that have contributed to a limited and partial vision of this scholarly discipline.  相似文献   
39.
This article reveals Native youth perspectives on socio-culturally responsive education. The authors draw on two studies conducted in the Southwest among Navajo and Pueblo students. Youth convey the importance of meaningful, reciprocal, and transformative learning experiences and relationships at school. The article ends with suggestions for creating a socio-culturally responsive school environment.  相似文献   
40.
Traditional approaches to formative evaluation include one-to-one trials which provide some information about revisions that are needed in instructional materials, but typically fail to provide sufficient information about the learner's cognitive processing problems while studying the materials. Read-think-aloud methods are a viable alternative to traditional one-to-ones and provide valuable information about the learner's cognitive processing while reading instructional text. In this paper we describe the read-think-aloud method of formative evaluation and offer suggestions for its use.  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