全文获取类型
收费全文 | 2231篇 |
免费 | 58篇 |
国内免费 | 3篇 |
专业分类
教育 | 1821篇 |
科学研究 | 127篇 |
各国文化 | 40篇 |
体育 | 141篇 |
文化理论 | 27篇 |
信息传播 | 136篇 |
出版年
2023年 | 21篇 |
2022年 | 25篇 |
2021年 | 38篇 |
2020年 | 80篇 |
2019年 | 112篇 |
2018年 | 154篇 |
2017年 | 140篇 |
2016年 | 122篇 |
2015年 | 70篇 |
2014年 | 98篇 |
2013年 | 441篇 |
2012年 | 97篇 |
2011年 | 92篇 |
2010年 | 85篇 |
2009年 | 77篇 |
2008年 | 61篇 |
2007年 | 53篇 |
2006年 | 59篇 |
2005年 | 49篇 |
2004年 | 38篇 |
2003年 | 39篇 |
2002年 | 31篇 |
2001年 | 29篇 |
2000年 | 20篇 |
1999年 | 23篇 |
1998年 | 17篇 |
1997年 | 13篇 |
1996年 | 17篇 |
1995年 | 17篇 |
1994年 | 7篇 |
1993年 | 9篇 |
1992年 | 11篇 |
1991年 | 16篇 |
1990年 | 9篇 |
1989年 | 18篇 |
1988年 | 11篇 |
1987年 | 5篇 |
1986年 | 6篇 |
1985年 | 9篇 |
1984年 | 5篇 |
1983年 | 3篇 |
1982年 | 3篇 |
1981年 | 10篇 |
1980年 | 3篇 |
1979年 | 9篇 |
1978年 | 3篇 |
1977年 | 5篇 |
1976年 | 3篇 |
1973年 | 3篇 |
1926年 | 2篇 |
排序方式: 共有2292条查询结果,搜索用时 218 毫秒
61.
The WWW is increasingly used as a medium to support education and training. A course at the University of Twente in which groups of students collaborate in the design and production of multimedia instructional materials has now been supported by a website since 1995. Workflow was integrated with other components in the website to investigate whether workflow can help instructors and students to have a better overview of group progress. Our evaluation shows that the introduction of workflow does provide added value. Another outcome of the experiment is that the transfer of a business application (workflow) into the educational domain has highlighted some differences and similarities between educational and business processes. This article explores some of these issues as highlighted by the application of workflow in education. 相似文献
62.
Susan van Rooyen 《Learned Publishing》2001,14(2):85-91
This paper discusses the role of peer review in the decision-making processes of scientific journals. It outlines the objectives of peer review and some of the problems. It then goes on to describe research into the quality of peer review, in particular the BMJ's programme of research to date, the results obtained, and consequent changes in practice. It also looks briefly at future possibilities for research into the peer-review process. 相似文献
63.
64.
65.
For self-regulated learning to be effective, students need to be able to accurately assess their own performance on a learning task and use this assessment for the selection of a new learning task. Evidence suggests, however, that students have difficulties with accurate self-assessment and task selection, which may explain the poor learning outcomes often found with self-regulated learning. In experiment 1, the hypothesis was investigated and confirmed that observing a human model engaging in self-assessment, task selection, or both could be effective for secondary education students’ (N = 80) acquisition of self-assessment and task-selection skills. Experiment 2 investigated and confirmed the hypothesis that secondary education students’ (N = 90) acquisition of self-assessment and task-selection skills, either through examples or through practice, would enhance the effectiveness of self-regulated learning. It can be concluded that self-assessment and task-selection skills indeed play an important role in self-regulated learning and that training these skills can significantly increase the amount of knowledge students can gain from self-regulated learning in which they choose their own learning tasks. 相似文献
66.
67.
68.
It has been argued that the Internet and social media increase the number of available viewpoints, perspectives, ideas and opinions available, leading to a very diverse pool of information. However, critics have argued that algorithms used by search engines, social networking platforms and other large online intermediaries actually decrease information diversity by forming so-called “filter bubbles”. This may form a serious threat to our democracies. In response to this threat others have developed algorithms and digital tools to combat filter bubbles. This paper first provides examples of different software designs that try to break filter bubbles. Secondly, we show how norms required by two democracy models dominate the tools that are developed to fight the filter bubbles, while norms of other models are completely missing in the tools. The paper in conclusion argues that democracy itself is a contested concept and points to a variety of norms. Designers of diversity enhancing tools must thus be exposed to diverse conceptions of democracy. 相似文献
69.
Ursina Meyer Dominique Ernst Silvia Schott Claudia Riera Jan Hattendorf Jacqueline Romkes 《Journal of sports sciences》2015,33(16):1702-1709
The purpose of this study was to assess the validity of accelerometers using force plates (i.e., ground reaction force (GRF)) during the performance of different tasks of daily physical activity in children. Thirteen children (10.1 (range 5.4–15.7) years, 3 girls) wore two accelerometers (ActiGraph GT3X+ (ACT), GENEA (GEN)) at the hip that provide raw acceleration signals at 100 Hz. Participants completed different tasks (walking, jogging, running, landings from boxes of different height, rope skipping, dancing) on a force plate. GRF was collected for one step per trial (10 trials) for ambulatory movements and for all landings (10 trials), rope skips and dance procedures. Accelerometer outputs as peak loading (g) per activity were averaged. ANOVA, correlation analyses and Bland–Altman plots were computed to determine validity of accelerometers using GRF. There was a main effect of task with increasing acceleration values in tasks with increasing locomotion speed and landing height (P < 0.001). Data from ACT and GEN correlated with GRF (r = 0.90 and 0.89, respectively) and between each other (r = 0.98), but both accelerometers consistently overestimated GRF. The new generation of accelerometer models that allow raw signal detection are reasonably accurate to measure impact loading of bone in children, although they systematically overestimate GRF. 相似文献
70.