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   6241篇
  免费   180篇
  国内免费   346篇
教育   3935篇
科学研究   1315篇
各国文化   7篇
体育   684篇
综合类   432篇
文化理论   10篇
信息传播   384篇
  2024年   10篇
  2023年   37篇
  2022年   120篇
  2021年   147篇
  2020年   200篇
  2019年   152篇
  2018年   142篇
  2017年   126篇
  2016年   201篇
  2015年   225篇
  2014年   456篇
  2013年   400篇
  2012年   529篇
  2011年   521篇
  2010年   359篇
  2009年   369篇
  2008年   378篇
  2007年   472篇
  2006年   421篇
  2005年   343篇
  2004年   337篇
  2003年   269篇
  2002年   230篇
  2001年   171篇
  2000年   70篇
  1999年   29篇
  1998年   11篇
  1997年   10篇
  1996年   9篇
  1995年   8篇
  1994年   4篇
  1993年   3篇
  1992年   2篇
  1990年   1篇
  1989年   1篇
  1988年   1篇
  1977年   1篇
  1957年   2篇
排序方式: 共有6767条查询结果,搜索用时 15 毫秒
41.
运用数据库定量分析遴选英文科技期刊编委   总被引:1,自引:1,他引:0  
丁筠 《编辑学报》2018,30(4):392-395
编委会对科技期刊的发展起着至关重要的作用。组建一支优质而高效的编委会队伍可以为打造优秀科技期刊奠定坚实的基础。本文以《仿生工程学报》编委会换届筹备为例,借鉴国外同领域竞争期刊的编委会构成特点,探讨适合我国英文科技期刊的编委遴选的新方法。实践表明,灵活运用Web of Science、Scopus等网络文献数据库,不仅可以对备选编委的学术影响力、学术活跃度等进行定量评估,还可以挖掘有潜力的新编委。备选编委定量评价体系的建立能够为编委会换届改选提供重要的理论依据。  相似文献   
42.
Current publishing practices in academia tend to result in datasets that are difficult to discover. This is because datasets are not well-integrated across academic domains and they are often not linked to the documents that reference them. For these reasons, discovering datasets across domains can be challenging; for example, discovering archeological observations and biological specimens using the same search is not widely supported, even if both datasets share a similar spatial extent, like Mesoamerica. It is also challenging to retrieve relevant documents that reference datasets; for example, retrieving a series of field reports that reference archeological observations is typically not supported. Our work develops an extensible method for: (1) geographically integrating collections across disciplinary repositories and (2) connecting datasets to related documents. We describe a collection of spatially-referenced researcher datasets, capturing their metadata elements and encoding them as linked open data. We then leverage existing library services to formalize links from datasets to documents. The system described in this work has been deployed, resulting in an experimental open data site for the UCSB campus. Results indicate that this system can be scaled-up with support from an institutional repository in the near future.  相似文献   
43.
投稿取向对期刊编辑出版工作有着重要影响。诸如时间环境背景、政策导向、作者自身价值取向、编辑出版系统几个方面对投稿取向均有影响。  相似文献   
44.
Research suggests that spatial ability may predict success in complex disciplines including anatomy, where mastery requires a firm understanding of the intricate relationships occurring along the course of veins, arteries, and nerves, as they traverse through and around bones, muscles, and organs. Debate exists on the malleability of spatial ability, and some suggest that spatial ability can be enhanced through training. It is hypothesized that spatial ability can be trained in low-performing individuals through visual guidance. To address this, training was completed through a visual guidance protocol. This protocol was based on eye-movement patterns of high-performing individuals, collected via eye-tracking as they completed an Electronic Mental Rotations Test (EMRT). The effects of guidance were evaluated using 33 individuals with low mental rotation ability, in a counterbalanced crossover design. Individuals were placed in one of two treatment groups (late or early guidance) and completed both a guided, and an unguided EMRT. A third group (no guidance/control) completed two unguided EMRTs. All groups demonstrated an increase in EMRT scores on their second test (P < 0.001); however, an interaction was observed between treatment and test iteration (P = 0.024). The effect of guidance on scores was contingent on when the guidance was applied. When guidance was applied early, scores were significantly greater than expected (P = 0.028). These findings suggest that by guiding individuals with low mental rotation ability “where” to look early in training, better search approaches may be adopted, yielding improvements in spatial reasoning scores. It is proposed that visual guidance may be applied in spatial fields, such as STEMM (science, technology, engineering, mathematics and medicine), surgery, and anatomy to improve student's interpretation of visual content. Anat Sci Educ. © 2018 American Association of Anatomists.  相似文献   
45.
The role of the library is to assist citizens in skills development critical to national interest and empowerment as literacy ambassadors, in general. Specifically, the work by the Federal Geographic Data Committee (1994) indicates that spatial literacy is for every citizen and not just a set of workforce specialists. Hence, the use of maps in decision making and problem solving will become fundamental to all professions, including library professionals. Thus, a spatial literacy awareness and rationale for such as standard job ability is discussed as a future librarian workforce proficiency and knowledge transfer medium.  相似文献   
46.
47.
国际背景下的我国初中化学课程的发展   总被引:2,自引:0,他引:2  
从国际影响的视角看,可将我国初中化学课程在1978年到2001年间的变化划分为四个阶段。在每一个阶段,初中化学课程都受到国际的影响,在不同阶段所影响的内容与程度是不同的,当国际趋势符合国内的教育(课程)政策时,它便能较大幅度地影响化学课程,反之则弱。  相似文献   
48.
2008年北京奥运会对当代中国青年有着极其重要的影响,主要表现为:能极大地提高当代中国青年的民族爱国、复兴热情;促进两岸青年的互相交往,有利于和平统一大业;使中国青年的精神文明建设和综合素质提升到一个新的高度;增进中国青年与世界青年的相互了解和友谊;为中国青年成功和实际利益的满足,提供机遇和舞台;强化中国青年的环保意识;使中国青年的健身意识普遍提高。  相似文献   
49.
网络教育、网络心理教育与青少年心理健康   总被引:10,自引:0,他引:10  
本文扼要介绍了网络教育、网络心理教育的产生与发展 ,分析了网络教育、网络心理教育的特点 ,探索了电脑网络对青少年心理健康的影响  相似文献   
50.
消费主义,作为一种二战后在资本主义社会生成发展并向世界广泛扩散以享乐至上为核心的社会思潮,由于其满足人的最基本的消费欲求和心理需要而获得了世界的广泛认同,本文着重研究消费主义对处于转型期时代背景下的青少年的影响,寻求抵制消费主义影响侵蚀的途径。  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