全文获取类型
收费全文 | 2227篇 |
免费 | 25篇 |
国内免费 | 4篇 |
专业分类
教育 | 1658篇 |
科学研究 | 200篇 |
各国文化 | 22篇 |
体育 | 178篇 |
综合类 | 12篇 |
文化理论 | 39篇 |
信息传播 | 147篇 |
出版年
2023年 | 6篇 |
2022年 | 23篇 |
2021年 | 48篇 |
2020年 | 56篇 |
2019年 | 106篇 |
2018年 | 136篇 |
2017年 | 129篇 |
2016年 | 103篇 |
2015年 | 70篇 |
2014年 | 82篇 |
2013年 | 352篇 |
2012年 | 76篇 |
2011年 | 63篇 |
2010年 | 80篇 |
2009年 | 51篇 |
2008年 | 53篇 |
2007年 | 58篇 |
2006年 | 47篇 |
2005年 | 79篇 |
2004年 | 78篇 |
2003年 | 98篇 |
2002年 | 80篇 |
2001年 | 70篇 |
2000年 | 38篇 |
1999年 | 25篇 |
1998年 | 11篇 |
1997年 | 8篇 |
1996年 | 9篇 |
1995年 | 17篇 |
1994年 | 11篇 |
1993年 | 7篇 |
1992年 | 7篇 |
1991年 | 12篇 |
1990年 | 8篇 |
1989年 | 13篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1985年 | 7篇 |
1983年 | 4篇 |
1982年 | 8篇 |
1981年 | 6篇 |
1980年 | 7篇 |
1978年 | 5篇 |
1977年 | 7篇 |
1975年 | 4篇 |
1974年 | 8篇 |
1973年 | 4篇 |
1967年 | 4篇 |
1966年 | 6篇 |
1963年 | 6篇 |
排序方式: 共有2256条查询结果,搜索用时 15 毫秒
71.
Juan E. Jimnez Claudia García de la Cadena 《Learning disabilities research & practice》2007,22(3):161-169
The main purposes of this research were twofold. We examined the samenesses about learning disabilities (LD) in Guatemala and Spain, two countries with the same language but cultural, political, and educational differences, first analyzing data about the prevalence of reading and spelling disabilities in Guatemala City and the Spanish region of the Canary Islands. The focus of the second study was to determine whether there are cross‐national patterns of significant differences in cognitive processes associated with reading and spelling disabilities from a developmental approach in these two cultural contexts. We found some differences in the prevalence of specific LD in reading between both countries but we did not find significant differences between Guatemalan and Spanish reading‐disabled children in cognitive processes that are involved in reading and spelling acquisition in spite of the cultural and educational differences between the two countries. 相似文献
72.
Une équipe de l'irem de strasbourg 《Educational Studies in Mathematics》1973,5(1):441-459
Sans résuméRésultats d'une enquête effectuée en mai-juin 1973 par une équipe de l'IREM de Strasbourg dans les classes de 3ème du Bas-Rhin.L'équipe comprenait quatre membres de l'IREM: Mathématiciens:Mademoiselle Anne ScherpereelMonsieur François PluvinagePsychologues:Mademoiselle Catherine BlochMonsieur Raymond Duval 相似文献
73.
74.
75.
C. G. Olesen B. H. Larsen E. L. Andresen M. de Zee 《European Journal of Sport Science》2015,15(3):242-247
AbstractThe aim of this study was to develop a performance test set-up for America's Cup grinders. The test set-up had to mimic the on-boat grinding activity and be capable of collecting data for analysis and evaluation of grinding performance. This study included a literature-based analysis of grinding demands and a test protocol developed to accommodate the necessary physiological loads. This study resulted in a test protocol consisting of 10 intervals of 20 revolutions each interspersed with active resting periods of 50 s. The 20 revolutions are a combination of both forward and backward grinding and an exponentially rising resistance. A custom-made grinding ergometer was developed with computer-controlled resistance and capable of collecting data during the test. The data collected can be used to find measures of grinding performance such as peak power, time to complete and the decline in repeated grinding performance. 相似文献
76.
77.
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
78.
We propose an approach to enhancing knowledge sharing and connectedness in distributed teams. Termed ‘Narrating Your Work’ (NYW), the approach involves members of distributed team using a microblogging tool to post regular updates about their current work, accomplishments, and issues. The NYW approach was evaluated within a geographically and temporally distributed team at Shell International for a period of one month, using a mixed-method research design. Methodology comprised of a quantitative survey, followed by semi-structured interviews and analysis of microblogging updates posted during the month in which the approach was being trialled. The evaluation results suggest that NYW was viewed as a valid and practical approach to enhancing knowledge sharing and connectedness. A range of barriers and enablers that could impact the future application and embedding of the approach are identified and recommendations for implementation are outlined. 相似文献
79.
80.
Fabricio Anicio de Magalhaes Giorgio Gatta Silvia Fantozzi 《Journal of sports sciences》2015,33(7):732-745
The use of contemporary technology is widely recognised as a key tool for enhancing competitive performance in swimming. Video analysis is traditionally used by coaches to acquire reliable biomechanical data about swimming performance; however, this approach requires a huge computational effort, thus introducing a delay in providing quantitative information. Inertial and magnetic sensors, including accelerometers, gyroscopes and magnetometers, have been recently introduced to assess the biomechanics of swimming performance. Research in this field has attracted a great deal of interest in the last decade due to the gradual improvement of the performance of sensors and the decreasing cost of miniaturised wearable devices. With the aim of describing the state of the art of current developments in this area, a systematic review of the existing methods was performed using the following databases: PubMed, ISI Web of Knowledge, IEEE Xplore, Google Scholar, Scopus and Science Direct. Twenty-seven articles published in indexed journals and conference proceedings, focusing on the biomechanical analysis of swimming by means of inertial sensors were reviewed. The articles were categorised according to sensor’s specification, anatomical sites where the sensors were attached, experimental design and applications for the analysis of swimming performance. Results indicate that inertial sensors are reliable tools for swimming biomechanical analyses. 相似文献