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   178354篇
  免费   2235篇
  国内免费   2336篇
教育   135893篇
科学研究   14480篇
各国文化   329篇
体育   10258篇
综合类   11222篇
文化理论   151篇
信息传播   10592篇
  2024年   16篇
  2023年   292篇
  2022年   1140篇
  2021年   1986篇
  2020年   2579篇
  2019年   1896篇
  2018年   1344篇
  2017年   1250篇
  2016年   1643篇
  2015年   3705篇
  2014年   9672篇
  2013年   10219篇
  2012年   12999篇
  2011年   14101篇
  2010年   10640篇
  2009年   10123篇
  2008年   11680篇
  2007年   14874篇
  2006年   14484篇
  2005年   13046篇
  2004年   11380篇
  2003年   10264篇
  2002年   8268篇
  2001年   6613篇
  2000年   3738篇
  1999年   1518篇
  1998年   705篇
  1997年   582篇
  1996年   528篇
  1995年   297篇
  1994年   280篇
  1993年   214篇
  1992年   157篇
  1991年   110篇
  1990年   82篇
  1989年   52篇
  1988年   30篇
  1987年   9篇
  1986年   6篇
  1985年   63篇
  1984年   56篇
  1983年   37篇
  1982年   49篇
  1981年   39篇
  1980年   11篇
  1979年   23篇
  1978年   39篇
  1977年   41篇
  1976年   34篇
  1957年   10篇
排序方式: 共有10000条查询结果,搜索用时 281 毫秒
81.
This paper addresses current issues in deaf education including poor academic progress and employment outcomes of individuals who are deaf and hard of hearing (D/HH) as well as provides suggestions for improving overall academic achievement of this population. Specifically, three instructional strategies are recommended for teachers: choral responding, response cards, and peer tutoring. These three strategies have been shown to increase active student responding in classrooms for children who are typically developing and children who have disabilities. For international deaf students in countries that may rely on volunteers who lack basic requisite skills these general education teaching strategies are easy to use even by novice teachers. Recommendations are tendered for how teachers can include these simple teaching strategies in classrooms serving students who are D/HH.  相似文献   
82.
IntroductionIt is unclear what is the best strategy for applying patient-based real-time quality control (PBRTQC) algorithm in the presence of multiple instruments. This simulation study compared the error detection capability of applying PBRTQC algorithms for instruments individually and in combination using serum sodium as an example.Materials and methodsFour sets of random serum sodium measurements were generated with differing means and standard deviations to represent four simulated instruments. Moving median with winsorization was selected as the PBRTQC algorithm. The PBRTQC parameters (block size and control limits) were optimized and applied to the four simulated laboratory data sets individually and in combination.ResultsWhen the PBRTQC algorithm were individually optimized and applied to the data of the individual simulated instruments, it was able to detect bias several folds faster than when they were combined. Similarly, the individually applied algorithms had perfect error detection rates across different magnitudes of bias, whereas the error detection rates of the algorithm applied on the combined data missed smaller biases. The performance of the individually applied PBRTQC algorithm performed more consistently among the simulated instruments compared to when the data were combined.DiscussionWhile combining data from different instruments can increase the data stream and hence, increase the speed of error detection, it may widen the control limits and compromising the probability of error detection. The presence of multiple instruments in the data stream may dilute the effect of the error when it only affects a selected instrument.  相似文献   
83.
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   
84.
Research on teacher-student relationships shows their impact on students. However, it typically focuses on teachers’ interactions and instruction, with less attention to motivations/feelings. Specifically, almost no quantitative research has focused on teachers’ caring for students, despite its potential importance. The present multilevel study, comprising 675 students in ages 15–17 and their 33 homeroom teachers, linked students’ feelings that their teacher cares for them with their self-esteem, well-being, and school engagement and indicated that teacher-student relationships quality mediates these links. Furthermore, students’ reports on teachers’ caring were associated with teachers’ sense of meaning at work, suggesting its role in enhancing caring.  相似文献   
85.
在校大学生作为消费日趋独立,个体意志日益成熟,对新事物新形态接受能力较强的体育消费群体,是现在和未来支撑体育消费市场的重要群体,具有一定的代表性和前瞻性。通过对安徽省全日制本科院校在校大学生体育消费水平、体育消费支出比重、体育消费方式及体育消费满意度等现状进行调查分析,有助于对经济新常态背景下安徽省体育消费市场现状进行分析并提供有效的发展建议。本文通过问卷调查,对数据整理分析,结合安徽省体育消费市场现状,提出应提高消费水平、优化消费结构、加快互联网经济建设等建议。  相似文献   
86.
当前,我国社会市场对人才的要求越来越多,而在众多要求中团队精神已经成为学生学习、求职、从事行业工作必备的条件。中职生是一群特殊的群体,其专业学习具有很强的职业性与目的性,在为中职生开展的体育教学中培养学生的团队意识非常重要。本文结合笔者多年的工作实践,探讨中职体育教学培养学生团队意识的策略,以供参考。  相似文献   
87.
The standard deviation is related to the mean by virtue of the coefficient of variation. Teachers of statistics courses can make use of that fact to make the standard deviation more comprehensible for statistics students.  相似文献   
88.
回顾新中国70年来,武术专业教育和学科建设的发展历程,认为武术历经“技艺、项目、课程、专业”四个转变阶段,逐渐支撑起民族传统体育的学科建设,走出了一条从传统到现代,具有中国特色的发展道路。新时代赋予武术专业教育和学科建设全面发展的新机遇,应从文化自信的历史角度,审视和创新本学科的理论建设与实践;从“双一流”建设的评价标准出发,规划和促进学科建设、专业教育、项目发展的共同提高;从“健康中国”的总体战略出发,指导和引领学科建设、人才培养、项目推广的协调发展。  相似文献   
89.
Assessment is a major part of the United States schooling system. Legal requirements make assessment a large part of practitioner responsibilities. The significance of assessment is, even more, the case for special populations such as bilingual hearing and Deaf and Hard of Hearing students, groups that are often the target of concern for English language development delays, differences, and/or disorders. In this article, we discuss the issues around assessing the language of Deaf and Hard of Hearing bilingual students in the United States. We highlight parallels between Deaf Education and hearing bilingual education in regard to language assessment, as well as discuss important distinctions such as the placement of Deaf Education within Special Education and working with two or more language modalities (e.g., signed, spoken, and written). In addition, alternative language assessment practices are discussed. We close this article by proposing ways for practitioners to satisfy legal and field mandates to assess Deaf and Hard of Hearing students while also applying best practices for assessing language skills in bilingual populations.  相似文献   
90.
This study investigates the impact of teaching factors on students’ cognitive and metacognitive achievement in mathematics. Written tests and the “Metacognitive Skills and Knowledge Assessment” tool were administered to grade 4 and 5 students (n = 924) at the beginning and end of the school year 2013-2014. A student questionnaire was used for measuring teaching factors. Multilevel SEM analyses revealed a reciprocal relationship between students’ cognitive and metacognitive skills. All teaching factors of the dynamic model of educational effectiveness were found to be associated with mathematics achievement but only four factors (modeling, assessment, questioning, and dealing with misbehavior) were associated with two aspects of metacognition (i.e. prediction and evaluation). Implications of findings are drawn.  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