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   2395篇
  免费   52篇
教育   1944篇
科学研究   48篇
各国文化   36篇
体育   73篇
综合类   1篇
文化理论   10篇
信息传播   335篇
  2023年   13篇
  2022年   21篇
  2021年   38篇
  2020年   69篇
  2019年   89篇
  2018年   126篇
  2017年   128篇
  2016年   117篇
  2015年   70篇
  2014年   101篇
  2013年   576篇
  2012年   71篇
  2011年   62篇
  2010年   57篇
  2009年   66篇
  2008年   64篇
  2007年   60篇
  2006年   73篇
  2005年   59篇
  2004年   64篇
  2003年   26篇
  2002年   39篇
  2001年   28篇
  2000年   19篇
  1999年   35篇
  1998年   26篇
  1997年   25篇
  1996年   42篇
  1995年   21篇
  1994年   27篇
  1993年   17篇
  1992年   18篇
  1991年   12篇
  1990年   16篇
  1989年   7篇
  1988年   8篇
  1987年   14篇
  1986年   8篇
  1985年   16篇
  1984年   11篇
  1983年   11篇
  1982年   11篇
  1981年   8篇
  1980年   5篇
  1979年   13篇
  1978年   6篇
  1977年   10篇
  1976年   5篇
  1975年   6篇
  1974年   6篇
排序方式: 共有2447条查询结果,搜索用时 31 毫秒
91.
92.
93.
Double-leg repeated jumping tasks are commonly used as measures of lower limb stiffness in exercise science research. Within similar stiffness calculations, variation in data-reduction criteria exists. The impact of these varied data-reduction methods on stiffness measures is unknown. Sixteen adolescent female participants from varied physical activity backgrounds performed 15 self-paced, bent-knee continuous jumps (CJb) on two force plates. Leg stiffness was calculated as the ratio of the peak force and the centre of mass displacement for each contact. Using combinations of criteria based on previous literature, 83 data-reduction methods were applied to the raw data. Data reduction suitability was assessed based on intra-trial reliability, the number of participants excluded and the average contacts excluded. Four data-reduction methods were deemed suitable for use with adolescent female populations, with three consecutive contacts within 1 SD of the average jump frequency considered optimal. The average individual stiffness values were not greatly influenced by the data-reduction method; however, for a single participant, a stiffness change of up to 6 kN · m?1 (30%) was observed. The role and potential impact of data-reduction methods used to evaluate measures of lower limb stiffness during repeated jumping tasks warrants consideration.  相似文献   
94.
Businesses have long relied on a variety of strategies to improve quality, efficiency, and service. Some ideas that have persisted over time are Six Sigma and Lean. While Six Sigma, originally intended for manufacturing, focuses on quality and Lean mainly addresses waste, many of the tools and principles involved can also apply to libraries. This article will review the literature on Lean and Six Sigma as they are used in business and then as they have been used in libraries. The resulting discussion will cover how the principles can be applied to better connect with stakeholders by mapping processes and discovering what is value added (VA) versus nonvalue added (NVA), anticipating failure modes using the failure mode and effects analysis (FMEA) framework, and implementing control plans to maintain quality processes and service.  相似文献   
95.
The Institute of Jazz Studies (IJS) started the Jazz Archives Fellows program in 2012 with two purposes in mind. First, the program focuses on improving diversity in the archives profession. Second, it provides a meaningful professional development opportunity for archivists in the early stages of their careers and for students in graduate programs who intend to become archivists. In addition, the IJS benefits directly from the fellows' work to process a collection and create a digital project. This article presents a case study of the Fellowship with a focus on program design, values, and lessons learned and includes recommendations for establishing similar programs.  相似文献   
96.
97.
The refugee sanctuary movement in the United States has shifted to include undocumented immigrants fleeing violence and economic strife. Given the negative tenor of coverage of undocumented immigration, and ties between framing and policy views on immigration, how the media frames sanctuary cities is likely to impact public perceptions of these cities and their policies. To assess media coverage of sanctuary policies, we analyzed articles from five national newspapers from 1980 to 2017 with both human content analysis and dictionary-based computational analysis. We find that framing around religion/morality and conflict has decreased, while stories focusing on crime and partisanship have increased. We discuss implications for public opinion and the likelihood that the American public will take their cues from media framing and elite discourse when it comes to sanctuary policies.  相似文献   
98.
99.
This article offers a critique of Michael Young’s perspective on the Internet as it relates to the knowledge-driven curriculum he supports. I argue that the Internet is a site of both theoretical knowledge and everyday concepts which challenges the differentiation of knowledge that premises much of Young’s writing. Google searches from the perspective of a student and teacher show that theoretical knowledge with vertical links to subject and disciplinary communities as well as coherence built through links between concepts is fairly readily accessed on the Internet. The importance of information literacy for students, the critical need to curate content on the web, as well as the implications for the curriculum of framing ‘knowing’ as encompassing ‘being familiar’ and comprehending’ are highlighted.  相似文献   
100.
In the Australian context, children living in disadvantaged circumstances, whose second language is English, are one of the groups at risk of failing in mathematics. This paper explores the impact purposely developed learning activities (Representations, Oral Language and Engagement in Mathematics Learning activities) have on pupils' mathematics outcomes in the first three years of formal schooling (Foundation, Year 1 and Year 2). The participating group (n = 461) comprised 328 English language learners and 133 mainstream pupils. To ascertain the impact of the learning experience, pre- and post-tests were conducted at the commencement and completion of each school year. The results indicate that all of the children significantly improved, with English as a second language pupils showing the greatest gains, and achieving norm-referenced expectations for their age.  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