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   374篇
  免费   6篇
教育   288篇
科学研究   9篇
各国文化   1篇
体育   47篇
文化理论   4篇
信息传播   31篇
  2023年   2篇
  2022年   8篇
  2021年   8篇
  2020年   14篇
  2019年   14篇
  2018年   29篇
  2017年   20篇
  2016年   19篇
  2015年   7篇
  2014年   22篇
  2013年   81篇
  2012年   9篇
  2011年   17篇
  2010年   13篇
  2009年   11篇
  2008年   14篇
  2007年   11篇
  2006年   3篇
  2005年   7篇
  2004年   9篇
  2003年   5篇
  2002年   4篇
  2001年   4篇
  2000年   5篇
  1999年   6篇
  1997年   4篇
  1996年   4篇
  1995年   2篇
  1994年   8篇
  1993年   1篇
  1992年   2篇
  1991年   2篇
  1990年   3篇
  1989年   1篇
  1988年   1篇
  1987年   2篇
  1986年   1篇
  1984年   2篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
  1978年   1篇
  1973年   1篇
排序方式: 共有380条查询结果,搜索用时 15 毫秒
71.
Wimmer and Goswami (1994) report that seven-, eight-, and nine-year old English children had considerably more difficulties with a nonword reading task than German children who acquire an orthography with highly consistent grapheme-phoneme correspondences. In Study 1, seven-, eight-, and nine year old English children receiving a phonics instruction were presented with the same task and compared with the children tested by Wimmer and Goswami. Study 2 is a replication with different samples of English children receiving the standard electic approach combining both whole-word and phonics strategies, English children receiving a phonics teaching approach and German children who are taught via phonics methods and acquire a consistent orthography. Children from Grades 1 to 4 were tested. In both studies, the English phonics children read the nonwords with almost the aame accuracy and speed as the German children. In Study 1, the English phonics children performed clearly better on nonword reading than the English standard sample. In Study 2, this difference was also evident but less marked. In Grade 1 English phonics as well as English standard children had clearly more difficulties with phonological decoding than German children indicating a relevant influence of orthographic consistency.  相似文献   
72.
Artworks are an inseparable part of the cultural heritage of societies and provide us with a unique look at cultural developments through time and space. For the best possible conservation, it is paramount to know the constituent materials, condition, and construction techniques of the objects (e.g. painting on wood, fresco, sculpture). Such information is required not only for the surfaces of the objects, but also for the interiors; in the imaging discipline, this is known as depth imaging. Here, we introduce a new method for non-invasive depth imaging as an alternative to traditional non-invasive methods when the latter cannot be used to obtain the required information. We use ultrasonic transverse-wave transmission measurements and turn them into virtual reflection measurements. We achieve this by applying seismic interferometry with active sources. Obtaining reflection measurements by seismic interferometry allows us to apply an advanced imaging technique – prestack depth migration, as used in seismic exploration – to produce a high-resolution depth image of an object. We apply our method to ultrasonic data recorded on a mockup of a painting on a wooden support. We validate our method by comparing our results with an image from X-ray computed tomography.  相似文献   
73.
This article explores health journalists’ sourcing patterns in the Dutch-speaking part of Belgium across a range of different media including newspapers, magazines, radio, television and online health news websites. A cross-sectional quantitative content analysis of health news items collected in February 2015 (N?=?981) was established to examine the number and origin (e.g. industry, citizens, experts) of sources (N?=?1998) mentioned in health news stories with particular attention paid to differences across various media types. Despite recent claims of media convergence, cross-media comparisons are scarce and, for a specialized beat such as health, nonexistent. The key findings of this study indicate that ordinary citizens and academic experts constitute the two largest source categories. The small share of industry-related sources confirms journalists’ skeptical attitude towards content provided by the industry. But on closer inspection, large differences can be observed across various media types. On the one hand, ordinary citizens occur with relatively high frequency on television but hardly make an appearance in online news items. Academic sources, on the other hand, are dominant online but nearly absent in television news items. In sum, this analysis demonstrates that health journalists’ source uses differ across various media platforms.  相似文献   
74.
The purpose of this article is to compare accuracy of activity type prediction models for accelerometers worn on the hip, wrists, and thigh. Forty-four adults performed sedentary, ambulatory, lifestyle, and exercise activities (14 total, 10 categories) for 3–10 minutes each in a 90-minute semi-structured laboratory protocol. Artificial neural networks (ANNs) were developed for four accelerometers (right hip, both wrists, and right thigh,) to predict individual activities and activity categories, with direct observation (DO) as criterion. The wrist-mounted accelerometers achieved the highest accuracy for individual activities (80.9%–81.1%) and activity categories (86.6%–86.7%); accuracy was not different between wrists. The hip-mounted accelerometer had the lowest accuracy (66.2% individual activities, 72.5% activity categories); thigh-mounted accelerometer accuracy (71.4% individual activities, 84.0% activity categories) fell between the wrist- and hip-mounted accelerometers. ANNs developed for accelerometers worn on the wrists and thigh provided high accuracy for activity type prediction and represent a potential approach to physical activity (PA) assessment.  相似文献   
75.
家的修复力     
刘克 《海外英语》2008,(9):33-35
1 When Becky Rohrer rescued an abandoned wreck of a house and lovingly transformed it into a cozy inn, she ended up healing her life as well. Emotionally and spiritually, the distance she's traveled from the life she once lived to where she is today seems almost impossible to measure.……  相似文献   
76.
77.
78.
79.
Abstract

This article presents examples of metadata collaborations between the Swiss National Library (NL) and research institutions in the field of Swiss historiography. The NL publishes the Bibliography on Swiss History (BSH). In order to meet the demands of its research community, the NL has improved the accessibility and interoperability of the BSH database. Moreover, the BSH takes part in metadata projects such as Metagrid, a web service linking different historical databases. Other metadata collaborations with partners in the historical field such as the Law Sources Foundation (LSF) will position the BSH as an indispensable literature hub for publications on Swiss history.  相似文献   
80.
With an interest in the role of emotions and values in students’ meaning-making in Environmental and Sustainability Education a case study was carried out in a Swedish school-class with students, 12 years of age. During a six-week thematic group-work focusing environmental and sustainability issues related to food, the students were observed and interviewed in their daily school practice. The results are presented here through narrative reporting, and analysed with the use of Dewey’s theoretical perspectives on experience, distinguishing three phases in a process: a start, an activity phase and a closure. Martha Nussbaum’s theory of emotions is used to assist in the understanding of emotions and values. The study reports on active and independent meaning-making processes in students’ group work. The results provide examples of students’ meaning-making experiences and the role of emotions and values in them, indicating that more of values are formed and expressed in the concluding phase.  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