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   7143篇
  免费   105篇
  国内免费   85篇
教育   5117篇
科学研究   825篇
各国文化   26篇
体育   561篇
综合类   313篇
文化理论   71篇
信息传播   420篇
  2024年   5篇
  2023年   31篇
  2022年   119篇
  2021年   215篇
  2020年   212篇
  2019年   260篇
  2018年   247篇
  2017年   258篇
  2016年   232篇
  2015年   322篇
  2014年   432篇
  2013年   975篇
  2012年   496篇
  2011年   567篇
  2010年   481篇
  2009年   392篇
  2008年   386篇
  2007年   380篇
  2006年   332篇
  2005年   240篇
  2004年   148篇
  2003年   131篇
  2002年   93篇
  2001年   78篇
  2000年   42篇
  1999年   26篇
  1998年   20篇
  1997年   21篇
  1996年   20篇
  1995年   15篇
  1994年   13篇
  1993年   11篇
  1992年   9篇
  1991年   10篇
  1990年   17篇
  1989年   5篇
  1988年   5篇
  1987年   7篇
  1986年   9篇
  1985年   7篇
  1984年   4篇
  1981年   6篇
  1979年   8篇
  1978年   7篇
  1977年   5篇
  1976年   4篇
  1974年   3篇
  1973年   4篇
  1970年   3篇
  1963年   3篇
排序方式: 共有7333条查询结果,搜索用时 15 毫秒
31.
This study was conducted in an environment of widespread use of social media and mobile applications in the mass media. The general goal of the study was to analyze the use of WhatsApp in cybermedia, specifically in radio. A case study was proposed to examine the use of WhatsApp on the program Las mañanas de RNE, broadcast by Spanish National Radio. It was found that the public was very accepting of the program’s initiative to solicit WhatsApp voice messages, beginning in November 2015. The case study used audio files of a direct broadcast that included specific times for audience participation. The use of WhatsApp was accepted by the audience, in addition to the use of the conventional telephone, as a tool well-suited to listener participation in radio programming. Finally, the study highlights the importance of interactive, participatory spaces in broadcasts through the creation of synergies with new forms of online participation.  相似文献   
32.
33.
IntroductionWhile early commenting on studies is seen as one of the advantages of preprints, the type of such comments, and the people who post them, have not been systematically explored.Materials and methodsWe analysed comments posted between 21 May 2015 and 9 September 2019 for 1983 bioRxiv preprints that received only one comment on the bioRxiv website. The comment types were classified by three coders independently, with all differences resolved by consensus.ResultsOur analysis showed that 69% of comments were posted by non-authors (N = 1366), and 31% by the preprints’ authors themselves (N = 617). Twelve percent of non-author comments (N = 168) were full review reports traditionally found during journal review, while the rest most commonly contained praises (N = 577, 42%), suggestions (N = 399, 29%), or criticisms (N = 226, 17%). Authors’ comments most commonly contained publication status updates (N = 354, 57%), additional study information (N = 158, 26%), or solicited feedback for the preprints (N = 65, 11%).ConclusionsOur results indicate that comments posted for bioRxiv preprints may have potential benefits for both the public and the scholarly community. Further research is needed to measure the direct impact of these comments on comments made by journal peer reviewers, subsequent preprint versions or journal publications.  相似文献   
34.
35.
Virtual microscopy (VM) is a widely used teaching method in Medical Education in many developed countries. In Brazil, however, this is not the case for most medical schools, considering Brazilian social inequality and uneven access to technology. Recently, the Covid-19 pandemic has also challenged Universities to seek and make a transition toward more effective methods of full-time online education. Thus, the main goal of this work was to verify student's perception and academic performance, assessed upon VM implementation in a Brazilian Medical School. Ribeirao Preto Medical School students answered a 26-question survey with regards to optical microscopy (OM) and VM. Academic performance was compared between participants that were (year of 2019) or were not (year of 2015) exposed to VM. Taken the results together, subjective impressions such as handling, suitability, learning effectiveness, and pleasure using the tools, have shown a higher score for virtual microscopy (median = 29), when compared to optical microscopy (median = 24) with a P-value < 0.001 by Wilcoxon rank test, upon measurement using an ordinal scale. Regarding academic performance, no statistically significant differences were found between groups (P-value = 0.38, Cohen's d = 0.19). Therefore, VM proved to be adequate to the Brazilian medical education in light of Brazilian social contexts and Covid-19 pandemic.  相似文献   
36.
European Journal of Psychology of Education - Children’s motivation to master challenging tasks is an important predictor of school success, and yet, such motivation declines during...  相似文献   
37.
Abstract

The authors focus on exploiting new methods of language acquisition with the help of the possibilities offered by the Internet. As a new option for computer‐assisted language learning, the Internet is considered to be a source for individual learning and problem oriented teaching in many other areas. Expanding knowledge in parallel in informatics and the English language is an asset. In addition to pointing out starting off sites for ESL teachers and introducing some interesting examples, some criteria of constructing language teaching WWW pages of our own are also listed.  相似文献   
38.
Abstract

Minority-serving institutions are important in the production of teachers of color. However, this formative process is not without limitations. This multisite, multistate study relied on network analysis techniques to unveil timely and relevant concerns that students, faculty, and administrators identified as critical toward the strengthening of teacher production.  相似文献   
39.
玉米淀粉接枝高吸水性树脂的合成研究   总被引:1,自引:0,他引:1  
对影响淀粉—丙烯酸接枝共聚反应的引发剂用量、淀粉/单体比例、聚合温度和聚合时间等因素进行了实验考察,确定了合成玉米淀粉接枝高吸水性树脂的最佳工艺条件。合成了吸水率为400g.g^-1~600g.g^-1的高吸水性树脂.为其工业化生产提供了技术参数。  相似文献   
40.
This study explores working students' college experiences using the grounded theory approach. Focus groups were conducted to allow working students to elaborate on their college experiences, clarifying issues not easily addressed through surveys. Two theoretical propositions are offered to describe how working students are constantly searching for meaningful work as well as meaning in their work. It is important for institutions to consider work as an educationally purposeful activity outside classroom and to create job opportunities that benefit students academically, socially and financially.  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