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   1172篇
  免费   18篇
  国内免费   1篇
教育   843篇
科学研究   19篇
各国文化   26篇
体育   91篇
文化理论   9篇
信息传播   203篇
  2023年   8篇
  2022年   7篇
  2021年   22篇
  2020年   45篇
  2019年   49篇
  2018年   76篇
  2017年   67篇
  2016年   64篇
  2015年   25篇
  2014年   60篇
  2013年   253篇
  2012年   28篇
  2011年   27篇
  2010年   24篇
  2009年   30篇
  2008年   35篇
  2007年   30篇
  2006年   28篇
  2005年   23篇
  2004年   15篇
  2003年   20篇
  2002年   12篇
  2001年   31篇
  2000年   19篇
  1999年   9篇
  1998年   9篇
  1997年   4篇
  1996年   7篇
  1995年   6篇
  1994年   7篇
  1993年   4篇
  1992年   12篇
  1991年   7篇
  1990年   6篇
  1989年   5篇
  1988年   5篇
  1987年   9篇
  1986年   5篇
  1985年   7篇
  1984年   4篇
  1982年   4篇
  1981年   5篇
  1979年   9篇
  1978年   5篇
  1977年   5篇
  1975年   4篇
  1967年   4篇
  1935年   4篇
  1934年   3篇
  1933年   3篇
排序方式: 共有1191条查询结果,搜索用时 78 毫秒
61.
62.
An important current challenge for research information providers is ensuring the automated discovery of Open Access (OA) content in hybrid journals. We found no evidence of discovery services that are able to systematically identify the crucially important free full-text availability of OA articles regardless of where and how such articles have been published (i.e., in fully OA journals or in hybrid journals). A solution is important because hybrid journals are proliferating and consequently the chances of missing OA articles is real and is happening. Nearly all of the major publishers now provide such journals in order to take advantage of recent changes in research funder requirements, and to be competitive in the new OA business model. By working with a group of scholarly publisher partners and by using standard metadata elements that publishers are already familiar with, we show a systematic and standardized manner to identify OA at the article level. Our proposal is to embed OA-related elements in the metadata freely exposed by publishers for aggregators and discovery services. For example, in the Table of Content (TOC) Really Simple Syndication feeds the publishers use to announce new journal issues and content. Based on the initial results obtained, we discuss the capabilities of our solution, and evaluate the impact produced by our application in the systematic discoverability of OA content from the participating hybrid journals, using an implementation done with the freely available journal current awareness service—JournalTOCs.  相似文献   
63.
64.
The likelihood of resisting gender‐stereotypic peer group norms, along with expectations about personal resistance, was investigated in 9‐ to 10‐year‐olds and 13‐ to 14‐year‐olds (= 292). Participants were told about a stereotype conforming group (boys playing football; girls doing ballet) and a stereotype nonconforming group (boys doing ballet; girls playing football). Contrary to expectations from gender‐stereotyping research, participants stated that they would personally resist gender‐stereotypic norms, and more so than they would expect their peers to resist. However, expecting peers to resist declined with age. Participants expected that exclusion from the group was a consequence for challenging the peer group, and understood the asymmetrical status of gender stereotypes with an expectation that it would be more difficult for boys to challenge stereotypes than for girls.  相似文献   
65.
66.
Infant vocalizations are early-emerging communicative markers shown to be atypical in autism spectrum disorder (ASD), but few longitudinal, prospective studies exist. In this study, 23,850 infant vocalizations from infants at low (LR)- and high (HR)-risk for ASD (HR-ASD = 23, female = 3; HR-Neg = 35, female = 13; LR = 32, female = 10; 80% White; collected from 2007 to 2017 near Philadelphia) were analyzed at 6, 12, and 24 months. At 12 months, HR-ASD infants produced fewer vocalizations than HR-Neg infants. From 6 to 24 months, HR-Neg infants demonstrated steeper vocalization growth compared to HR-ASD and LR infants. Finally, among HR infants, vocalizing at 12 months was associated with language, social phenotype, and diagnosis at age 2. Infant vocalizing is an objective behavioral marker that could facilitate earlier detection of ASD.  相似文献   
67.
Studies show that spatial interventions lead to improvements in mathematics. However, outcomes vary based on whether physical manipulatives (embodied action) are used during training. This study compares the effects of embodied and non-embodied spatial interventions on spatial and mathematics outcomes. The study has a randomized, controlled, pre-post, follow-up, training design (N = 182; mean age 8 years; 49% female; 83.5% White). We show that both embodied and non-embodied spatial training approaches improve spatial skills compared to control. However, we conclude that embodied spatial training using physical manipulatives leads to larger, more consistent gains in mathematics and greater depth of spatial processing than non-embodied training. These findings highlight the potential of spatial activities, particularly those that use physical materials, for improving children's mathematics skills.  相似文献   
68.
Generic skills such as critical thinking, problem solving, and communication are essential for students' success in higher education and their careers. This article presents findings from an international study of students' (n ≈ 120,000) generic skills from six countries using a performance-based assessment. Results indicate that higher education students, on average, gain generic skills between entry and exit. However, learning gain is less marked than could be expected and varies significantly among country samples. Various background variables such as gender, ethnicity, parental level of education, and primary language are also explored. The authors conclude that it is feasible to reliably and validly measure generic skills in a cross-cultural context and that assessment of these skills is an essential component of best practices in higher education.  相似文献   
69.
Cross-Lingual Link Discovery (CLLD) is a new problem in Information Retrieval. The aim is to automatically identify meaningful and relevant hypertext links between documents in different languages. This is particularly helpful in knowledge discovery if a multi-lingual knowledge base is sparse in one language or another, or the topical coverage in each language is different; such is the case with Wikipedia. Techniques for identifying new and topically relevant cross-lingual links are a current topic of interest at NTCIR where the CrossLink task has been running since the 2011 NTCIR-9. This paper presents the evaluation framework for benchmarking algorithms for cross-lingual link discovery evaluated in the context of NTCIR-9.  相似文献   
70.
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