全文获取类型
收费全文 | 1007篇 |
免费 | 21篇 |
国内免费 | 2篇 |
专业分类
教育 | 764篇 |
科学研究 | 41篇 |
各国文化 | 15篇 |
体育 | 66篇 |
文化理论 | 7篇 |
信息传播 | 137篇 |
出版年
2021年 | 9篇 |
2020年 | 10篇 |
2019年 | 25篇 |
2018年 | 30篇 |
2017年 | 32篇 |
2016年 | 19篇 |
2015年 | 29篇 |
2014年 | 25篇 |
2013年 | 235篇 |
2012年 | 27篇 |
2011年 | 27篇 |
2010年 | 26篇 |
2009年 | 37篇 |
2008年 | 28篇 |
2007年 | 19篇 |
2006年 | 22篇 |
2005年 | 17篇 |
2004年 | 17篇 |
2003年 | 18篇 |
2002年 | 18篇 |
2001年 | 14篇 |
2000年 | 11篇 |
1999年 | 9篇 |
1998年 | 31篇 |
1997年 | 12篇 |
1996年 | 12篇 |
1995年 | 8篇 |
1994年 | 11篇 |
1993年 | 21篇 |
1992年 | 13篇 |
1991年 | 12篇 |
1990年 | 12篇 |
1989年 | 9篇 |
1988年 | 11篇 |
1987年 | 7篇 |
1986年 | 11篇 |
1985年 | 18篇 |
1984年 | 10篇 |
1983年 | 10篇 |
1982年 | 16篇 |
1981年 | 16篇 |
1980年 | 8篇 |
1979年 | 12篇 |
1977年 | 7篇 |
1976年 | 5篇 |
1974年 | 5篇 |
1973年 | 5篇 |
1972年 | 4篇 |
1971年 | 4篇 |
1964年 | 4篇 |
排序方式: 共有1030条查询结果,搜索用时 15 毫秒
71.
72.
Gregory J. Benner Marissa J. Filderman Lucy Barnard-Brak Jordan Pennefather Jean Louise M. Smith Lisa A. Strycker 《Psychology in the schools》2023,60(1):182-198
This article reports on a pilot study of the Integrated Literacy Study Group, a digitally delivered professional learning intervention to prepare elementary school teachers to provide evidence-based reading instruction and behavioral strategies to students with or are at risk for emotional and behavioral disorders. Using broadcast methods, we recruited 72 teachers across five states in the western United States to participate in the randomized controlled trial. Intervention teachers, relative to controls, made significant gains in self-efficacy and use of the reading and behavioral strategies learned in the professional learning program. Students with or at risk of emotional and behavioral disorders served by participating teachers made significant improvements in academic competence and engagement. Teacher professional learning can improve teacher knowledge of evidence-based reading and behavioral strategies for students with (or at risk for) emotional and behavioral disorders, teacher self-efficacy, and teacher practice, with positive impacts on student early literacy and academic competence. 相似文献
73.
74.
75.
76.
77.
78.
Jean Chaline 《Endeavour》1977,1(2):44-51
The rodents, especially voles, evolved very rapidly during the Quaternary era. Their remains, particularly the teeth, were fossilised by the thousand in prehistoric deposits. The sites can be dated from the degree of evolution attained by the teeth. Since rodents are closely adapted to their biotopes and live under well defined climatic conditions, they are extremely valuable for reconstructing the landscapes and climates of prehistory. In many cases, a single rodent tooth can be used to assess the age of a human skull or a prehistoric settlement, and throw light on the environment and climate of the time. 相似文献
79.
The transport of thermal energy in thermodynamics is described as the product of entropy flow and of the absolute temperature, in analogy to the volume flow and pressure in oil hydraulics and to electric charge flow (= current) and voltage in electronics. Bond graphs are shown to be especially suitable to describe the splitting of applied thermal energy into internal energy and external mechanical work. Transformers and the 0- and 1-junctions of Paynter can illustrate various entropy flow processes, including Carnot engines and heat exchangers. Entropy flow in heat conduction is distinguished from entropy convection, or transport by moving mass, where the entropy/temperature characteristic or equation of state is important. Irreversibilities are represented by impedance transformers reducing temperature and increasing entropy flow but conserving power. 相似文献
80.