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   439篇
  免费   7篇
教育   293篇
科学研究   34篇
体育   70篇
文化理论   4篇
信息传播   45篇
  2024年   1篇
  2023年   3篇
  2022年   4篇
  2021年   10篇
  2020年   19篇
  2019年   22篇
  2018年   49篇
  2017年   27篇
  2016年   21篇
  2015年   14篇
  2014年   16篇
  2013年   59篇
  2012年   22篇
  2011年   22篇
  2010年   17篇
  2009年   15篇
  2008年   17篇
  2007年   21篇
  2006年   12篇
  2005年   17篇
  2004年   6篇
  2003年   3篇
  2002年   17篇
  2001年   6篇
  2000年   1篇
  1999年   3篇
  1998年   3篇
  1993年   1篇
  1992年   1篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1987年   1篇
  1986年   1篇
  1985年   1篇
  1982年   1篇
  1980年   1篇
  1979年   2篇
  1975年   1篇
  1974年   1篇
  1970年   1篇
  1969年   1篇
  1964年   1篇
  1963年   1篇
排序方式: 共有446条查询结果,搜索用时 15 毫秒
81.
Aggregate unemployment may affect individual returns to education through qualification-specific responses in participation and wage bargaining. This paper shows that an increase in regional unemployment by 1% decreases returns to education by 0.005 percentage points. This implies that higher skilled employees are better sheltered from labour market changes with respect to their jobs but they encounter larger wage changes than less skilled employees. We use representative individual data and panel variation in unemployment between German regions and employee groups. We demonstrate that our results are robust with respect to aggregation bias, time lags and potential endogeneity of the unemployment variable.  相似文献   
82.
International cooperation in history teaching and related teacher education requires clarification of terminology as well as of underlying concepts and theoretical foundations, since these levels are fundamentally intertwining. If these levels are addressed, both comparison and translation do not only make cooperation possible, but promise valuable contributions to the clarification of such concepts on either side. Being the German counterpart to the viewpoint of Peter Seixas, this article both corroborates and adds to his reflections. Three complexes of theory and terminology are addressed: ‘Geschichtsbewusstsein’ (‘historical consciousness’) with special regard to the concept of ‘Sinnbildung’ in Jörn Rüsen’s theory, the German focus on the concepts of source (‘Quelle’) compared to the Anglosaxon concept of ‘evidence’ and the challenges posed by translating Jörn Rüsen’s concept of ‘Triftigkeiten’ (plausibility) as a criterion for assessing the quality of historical statements.  相似文献   
83.
Effects of joint attention were addressed on 3- to 4-year-olds’ performance in a verbal false-Belief Test (FBT), featuring the experimenter as co-watcher rather than narrator. In two experiments, children (N = 183) watched a filmed-FBT jointly with a test leader, disjointed from a test leader, or alone. Children attending jointly with a test leader were more likely to pass the FBT compared with normative data and to spontaneously recall information indicating false-belief understanding, suggesting that joint attention strengthens the plausibility of the FBT and renders plot-critical information more salient. In a third experiment (N = 59), results were replicated using a typical, image-based FBT. Overall findings highlight the profound impact of experimenter as social context in verbal FBTs, and link recall of specific story features to false-belief understanding.  相似文献   
84.
Computers are increasingly a part of preschooler’s lives. The purpose of the present paper was to discuss research avenues employing computers as a learning tool and to analyse the results obtained by this method at the preschoolers’ learning level. Specifically this research was to determine if computer assisted instruction (CAI) was a useful tool to enhance cognitive, emotional, linguistic, and literacy skills in preschool children. CAI programmes may never replace the book and the blackboard but one should be aware that they were more accessible by young children, who learn better with pictures and sounds, and the proper use of appropriate programmes could make a considerable difference.  相似文献   
85.
Sfard and Kieran [Kieran, C., Educational Studies in Mathematics 46, 2001, 187–228; Sfard, A., Educational Studies in Mathematics 46, 2001, 13–57; Sfard, A. and Kieran, C., Mind, Culture, and Activity 8, 2001, 42–76] have developed a methodological framework, which aims at characterizing the students’ mathematical discourses while they are working in groups. In this study, I focus on an important aspect of this methodological framework, namely the interactive flowcharts. The aim of this study is to suggest two complementary analyses for the construction of the interactive flowcharts: an additional analysis by means of the analytical construct of contextualization as well as an analysis of types of mathematical discourses. Based on data from a study of how four groups of Swedish engineering students collaboratively construct concept maps in linear algebra. I show that the two complementary analyses make the construction of the interactive flowcharts more coherent and transparent, and hence, more reliable. Furthermore, the two complementary analyses dramatically changed the picture as to whether the studied discourses were to be seen as mathematically productive or not. In the end of the article, I discuss the possibilities of performing the suggested additional analyses within the original methodological framework.  相似文献   
86.
66 mother-infant pairs were examined when the infants were 9 and 13 months. The purpose of this report was to examine relations between infant proneness-to-distress temperament, maternal personality characteristics, and mother-infant attachment. There were no main-effect relations between infant proneness-to-distress temperament as assessed at 9 months and infant attachment classification at 13 months. This was true whether security of attachment (A and C vs. B) or proposed temperament (A1-B2 vs. B3-C2) groupings of attachment classifications were examined. Infant proneness-to-distress temperament, however, was associated with maternal behavior and personality. Furthermore, security of attachment could be predicted by an interaction between maternal personality and infant proneness-to-distress. The importance of considering goodness-of-fit relations in predicting attachment security is discussed.  相似文献   
87.
88.
Behavioral and neurophysiological effects of a computer-aided morphological training protocol were examined in German-speaking children from Grades 3 to 9. Study 1 compared morphological awareness, reading, and spelling skills of 34 trained children with an untrained control group of 34 children matched for age, sex, and intelligence. All participants in the training group showed increases in morphological awareness, but only students from secondary school improved significantly in reading and spelling competences. In Study 2, a subsample of 8 trained children with poor spelling and reading abilities and 10 untrained children with higher language competencies underwent an electroencephalography testing involving three different language tasks. The training resulted in decreased theta-activity and increased activity in lower (7–10 Hz) and upper alpha (10–13 Hz). These findings reflect more effortful and attention-demanding processing after the training and suggest that children with poor spelling and reading abilities use the acquired morphological knowledge in terms of a compensatory strategy.  相似文献   
89.
90.
There is increasing enthusiasm for teaching approaches that combine mathematics and biology. The call for integrating more quantitative work in biology education has led to new teaching tools that improve quantitative skills. Little is known, however, about whether increasing interdisciplinary work can lead to adverse effects, such as the development of broader but shallower skills or the possibility that math anxiety causes some students to disengage in the classroom, or, paradoxically, to focus so much on the mathematics that they lose sight of its application for the biological concepts in the center of the unit at hand. We have developed and assessed an integrative learning module and found disciplinary learning gains to be equally strong in first-year students who actively engaged in embedded quantitative calculations as in those students who were merely presented with quantitative data in the context of interpreting biological and biostatistical results. When presented to advanced biology students, our quantitative learning tool increased test performance significantly. We conclude from our study that the addition of mathematical calculations to the first year and advanced biology curricula did not hinder overall student learning, and may increase disciplinary learning and data interpretation skills in advanced students.  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