全文获取类型
收费全文 | 1804篇 |
免费 | 42篇 |
专业分类
教育 | 1339篇 |
科学研究 | 90篇 |
各国文化 | 11篇 |
体育 | 245篇 |
综合类 | 1篇 |
文化理论 | 30篇 |
信息传播 | 130篇 |
出版年
2023年 | 15篇 |
2022年 | 26篇 |
2021年 | 41篇 |
2020年 | 69篇 |
2019年 | 107篇 |
2018年 | 160篇 |
2017年 | 139篇 |
2016年 | 129篇 |
2015年 | 66篇 |
2014年 | 89篇 |
2013年 | 355篇 |
2012年 | 64篇 |
2011年 | 40篇 |
2010年 | 58篇 |
2009年 | 43篇 |
2008年 | 55篇 |
2007年 | 37篇 |
2006年 | 32篇 |
2005年 | 29篇 |
2004年 | 30篇 |
2003年 | 17篇 |
2002年 | 12篇 |
2001年 | 18篇 |
2000年 | 28篇 |
1999年 | 15篇 |
1998年 | 15篇 |
1997年 | 10篇 |
1996年 | 6篇 |
1995年 | 10篇 |
1994年 | 8篇 |
1993年 | 8篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1990年 | 5篇 |
1989年 | 6篇 |
1988年 | 10篇 |
1987年 | 4篇 |
1985年 | 6篇 |
1982年 | 4篇 |
1981年 | 8篇 |
1979年 | 4篇 |
1978年 | 4篇 |
1977年 | 3篇 |
1976年 | 3篇 |
1974年 | 5篇 |
1973年 | 4篇 |
1972年 | 4篇 |
1969年 | 3篇 |
1968年 | 2篇 |
1957年 | 2篇 |
排序方式: 共有1846条查询结果,搜索用时 15 毫秒
21.
Christian Rullang Eike Emrich Christian Pierdzioch Freya Gassmann 《Sportwissenschaft》2016,46(4):275-286
Sports clubs depend on the pooling of resources by their members. The supportive distribution of the resources within a club is facilitated in particular by the effectiveness of incremental standards. A basic prerequisite for a fair distribution of resources is a minimum of community spirit among the members. Based on a nationwide survey of football clubs and an ordinal logistic regression model, factors were determined that reflect the extent of the community spirit within a club. The opening up of the club by payment to players and perceived problems with acquiring and binding of volunteers are associated with a reduction of community spirit. In contrast, the perception that the club activities can be continued in the long term shows a positive correlation to a highly developed community spirit. 相似文献
22.
Anne Focke Sina Spancken Christian Stockinger Benjamin Thürer Thorsten Stein 《European Journal of Sport Science》2016,16(7):787-793
Benefits of bilateral practice both for the non-dominant and for the dominant body side have been shown in several studies. Thereby, most of the studies included movement tasks of the upper extremity or investigated sports games in which the ability of acting bilaterally is an essential basis for success and, thus, a bilateral practice is reasonable anyway. Individual unilaterally performed sports including movement tasks of the lower extremity are rarely investigated. Therefore, the aim of our study was to test if contralateral transfer due to bilateral practice can be found in an unilaterally performed sport including the lower extremity. We trained and tested 61 adolescent athletes in long jump to compare the jumping performance of the dominant leg after a 12-week practice period between two groups: a bilateral practice group that practiced specific long jump exercises with both the dominant and non-dominant leg and an unilateral practice group that practiced specific long jump exercises only with the dominant leg. Results showed a superior effect of bilateral practice compared to unilateral practice regarding the jumping performance of the dominant leg. The performance increase at post-test and retention-test for the dominant limb was significantly higher for the bilateral practice group (pre-to-post: 5.2%, pre-to-retention: 7.4%) compared to the unilateral practice group (pre-to-post: 3.4%, pre-to-retention: 4.5%). Thus, bilateral practice should be established in the early practice programmes of track and field athletes to improve the performance of the dominant take-off leg. 相似文献
23.
Puolakanaho A Ahonen T Aro M Eklund K Leppänen PH Poikkeus AM Tolvanen A Torppa M Lyytinen H 《Journal of learning disabilities》2008,41(4):353-370
The authors examined second grade reading accuracy and fluency and their associations via letter knowledge to phonological and language predictors assessed at 3.5, 4.5, and 5.5 years in children in the Jyv?skyl? Longitudinal Study of Dyslexia. Structural equation modeling showed that a developmentally highly stable factor (early phonological and language processing [EPLP]) behind key dyslexia predictors (i.e., phonological awareness, short-term memory, rapid naming, vocabulary, and pseudoword repetition) could already be identified at 3.5 years. EPLP was significantly associated with reading and spelling accuracy and by age with letter knowledge. However, EPLP had only a minor link with reading fluency, which was additionally explained by early letter knowledge. The results show that reading accuracy is well predicted by early phonological and language skills. Variation in fluent reading skills is not well explained by early skills, suggesting factors other than phonological core skills. Future research is suggested to explore the factors behind the development of fast and accurate decoding skills. 相似文献
24.
Rats were exposed twice in a rotated sequence to a series of six mazes, consisting of hexagonal alleys, balanced for different alley length and structural complexity. Locomotor activity increased with alley length and decreased with structural complexity of the mazes. Locomotion became less stereotyped with increased experience, showing an increasing number of turns, less constant velocity, loss of the initial preference for outward leading alleys and weakening of the forward tendency at reentry from side alleys into hexagonal alleys. In contrast to these qualitative changes of locomotion, the amount of activity remained almost unchanged throughout the experiment. The results suggest that these increases in locomotion complexity depend upon complex interactions between experience and stimulus content of the mazes. 相似文献
25.
26.
27.
Professor Dr. Reinders Duit Professor Dr. Peter Häussler Dr. Roland Lauterbach Professor Dr. Helmut Mikelskis Professor Dr. Walter Westphal 《Research in Science Education》1992,22(1):106-113
This paper outlines the design of a physics textbook that addresses issues of gender-inclusive physics teaching, STS and constructivism.
Difficulties of addressing these issues in a textbook for normal classes, which has to compete with other textbooks on the
market will be discussed.
Specializations: constructivist approaches in science education research and practice.
Specializations: gender issues in science instruction.
Specializations: primary education, integrated science.
Specializations: STS, phenomenological oriented physics instruction.
Specializations: peace education within science education. 相似文献
28.
European Journal of Psychology of Education - The purpose of this study was to test the relationships between critical thinking, prior topic knowledge and beliefs, and multiple-document... 相似文献
29.
The purpose of the study was to examine whether students’ linguistic skills and task-avoidant behavior (i.e., the child-related factors) and the mean level of academic skills (reading comprehension and math) of classmates (i.e., the class-related factor) are associated with teacher judgments of children’s reading comprehension and math skills. The participants were third-grade Estonian-speaking students (n?=?656; age 9?11 years) and their classroom teachers (n?=?51). The results of the structural equation modeling path analyses indicated that teachers tend to judge students showing higher academic and linguistic skills and lower avoidance behavior as higher on the reading comprehension and math skills. In contrast, the classmates’ higher academic skill level was related to lower judgments of individual children’s reading comprehension and math skills by teachers. 相似文献
30.
Lauri Heikonen Janne Pietarinen Kirsi Pyhältö Auli Toom Tiina Soini 《Asia-Pacific Journal of Teacher Education》2017,45(3):250-266
Teachers’ capacity to learn intentionally and responsively in the classroom is particularly vulnerable during the first years in the profession. This study investigated the interrelations between early career teachers’ turnover intentions, perceived inadequacy in teacher–student interaction, and sense of professional agency in the classroom. The survey data were collected from 284 in-service teachers with not more than 5 years of experience and analysed by structural equation modelling (SEM). The results showed that the negative relation between turnover intentions and early career teachers’ sense of professional agency was completely mediated by perceived inadequacy in teacher–student interaction. The results indicate that experiences of insufficient abilities to solve pedagogically and socially challenging student situations have a crucial effect on early career teacher’s capacity for adaptive reflection and active transformation of instruction. 相似文献