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   38238篇
  免费   908篇
  国内免费   401篇
教育   26395篇
科学研究   5738篇
各国文化   35篇
体育   2233篇
综合类   1907篇
文化理论   17篇
信息传播   3222篇
  2024年   16篇
  2023年   144篇
  2022年   395篇
  2021年   837篇
  2020年   1219篇
  2019年   986篇
  2018年   611篇
  2017年   763篇
  2016年   795篇
  2015年   1117篇
  2014年   2727篇
  2013年   3617篇
  2012年   3458篇
  2011年   3419篇
  2010年   2220篇
  2009年   1960篇
  2008年   2221篇
  2007年   2635篇
  2006年   2461篇
  2005年   2040篇
  2004年   1672篇
  2003年   1452篇
  2002年   1036篇
  2001年   712篇
  2000年   410篇
  1999年   174篇
  1998年   119篇
  1997年   91篇
  1996年   52篇
  1995年   36篇
  1994年   45篇
  1993年   22篇
  1992年   28篇
  1991年   17篇
  1990年   7篇
  1989年   5篇
  1988年   1篇
  1987年   3篇
  1985年   3篇
  1982年   1篇
  1979年   3篇
  1978年   1篇
  1977年   3篇
  1976年   6篇
  1957年   7篇
排序方式: 共有10000条查询结果,搜索用时 22 毫秒
1.
Creating and disseminating knowledge through research and teaching has long been regarded as the hallmark of the modern university. However, new university business models have called into question the ‘bundling’ of teaching and research, and sustained research on the relationship between teaching and research has found little evidence of an insoluble connection between the two activities. In this article, we explore the relationship between teaching and research from the perspective of universities’ institutional discourse. We use corpus-assisted discourse analysis to examine the relationship between research and teaching as presented in two sets of institutional texts currently influential in UK Higher Education: Research Excellence Framework environment statements and Teaching Excellence Framework provider submissions (a total of 2143 documents and 12,492,071 words). Our findings show that, while universities emphasise the value of research to their teaching, they do not always emphasise (or sometimes even decry) the influence of teaching on their research. We empirically evidence that, according to what universities themselves write in institutional texts, teaching and research are not always in a mutually beneficial entanglement, but often rather a one-way relationship in which research expertise and institutional prestige are used to bolster claims of teaching excellence. This has implications for the communication of both the vision and the purpose of a university in regulatory exercises and wider policy, but also speaks to the broader idea and practice of being a university in the twenty-first century.  相似文献   
2.
ABSTRACT

This article suggests that situations in which multiple research teams are convened under similar conditions present an opportunity to discover factors that lead to productive collaboration. It argues that social network analysis of research team outputs becomes more valuable when paired with data about research participant perceptions; and that any variables used as indicators of collaboration need to be calibrated using datasets from multiple studies with cross-team comparisons. The article provides an example of the kind of methodology needed to achieve this, describing a study with data from four research teams based at an Australian university campus, reporting their research performance over four years under conditions in which many variables were controlled and with results augmented by a survey of participant perceptions. Findings from the study indicate that there were exceptions to hypothesized associations between participant perceptions of collaboration and specific social network analysis measures over co-authorship data. The article suggests that, given the methodological challenges of studying research teams in the field, multiple datasets combining findings such as those in the present study are a path towards the development of indicators of productive higher education research collaboration.  相似文献   
3.
This research focuses on understanding teachers’ conceptions of what constitutes a fair assessment. In recent decades the number of studies seeking to learn about teachers’ conceptions on assessment has multiplied. The idea is simple, and involves the extent to which conceptions have an effect on what happens in practice. With this aim, a phenomenographic study was carried out to understand what is a fair assessment from teachers’ perspectives. Despite the importance of conducting phenomenographic studies in education, in Spain hardly any studies have used this methodology. Participants were 30 teachers at primary/secondary schools in Spain. The results show that teachers' conceptions of fair assessment were divided, some being more closely related to the principle of equality and others to equity. The conclusion of this study highlights the influence of the school context on teachers’ conceptions of what constitutes fair assessment (in the research, there were 15 teachers who worked in schools located in low socioeconomic status contexts and 15 who were in high socioeconomic status environments).  相似文献   
4.
新中国成立初期体育学界的探索和体育事业的发展,为当代体育哲学社会科学发展提供了重要的经验启示和思想资源。出于复杂原因,当时被"双百"方针孕育而生的首次体育学术论争,鲜有人提及。在学界内外争鸣氛围的激励下,这次论争系统总结了当时体育发展中的基本问题,空前活跃了体育研究氛围,也促使篮球战术、体育内行与外行、武术渊源和发展等具体问题的讨论得以深入展开;而历史条件的特殊性和局限性,致使其偏离了体育场域且未能充分关注基本国情;从研究者的态度、论争者的遗憾和体育界的反思等层面,对我国首次体育学术论争及其深远影响进行研判。  相似文献   
5.
In an expertise study with 94 mathematics teachers varying in their relative teacher expertise (i.e., student teachers, trainee teachers, in-service teachers), we examined effects of teachers' professional knowledge and motivational beliefs on their ability to integrate technology within a lesson plan scenario. Therefore, we assessed teachers' professional knowledge (i.e., content knowledge, pedagogical content knowledge, technological knowledge), and their motivational beliefs (i.e., self-efficacy, utility-value). Furthermore, teachers were asked to develop a lesson plan for introducing the Pythagorean theorem to secondary students. Lesson plans by advanced teachers (i.e., trainee teachers, in-service teachers) comprised higher levels of instructional quality and technology exploitation than the ones of novice teachers (i.e., pre-service teachers). The effect of expertise was mediated by teachers' perceived utility-value of educational technology, but not by their professional knowledge. These findings suggest that teachers’ motivational beliefs play a crucial role for effectively applying technology in mathematics instruction.  相似文献   
6.
[目的/意义] 灰色预测法可有效处理情报研究中广泛存在的小样本数据,通过对灰色预测法在情报研究中的应用情况进行梳理,总结其在应用过程中存在的不足,为灰色预测法在情报研究中的进一步应用提供参考。[方法/过程] 通过综述情报研究中涉及灰色预测法的相关文献,从数据选取、模型构建和解决的问题等方面对情报研究中灰色预测法的应用进行概述,总结当前情报研究中灰色预测法的应用所存在的问题,并提出改进建议。[结果/结论] 在方法应用上,已有研究主要采用数列灰预测,且模型集中在单变量灰色预测模型,根据预测对象不同,灰色预测法已经在包括期刊分析、图书馆运行管理、热点主题分析及科研机构评价方面得到了很好的应用,未来可根据预测对象特点及研究目标尝试不同的灰色预测方法,扩宽灰色预测法在其他方面的情报研究问题中的应用。  相似文献   
7.
This review presents a conceptual framework and supporting evidence that links impaired motor control after sport-related concussion (SRC) to increased risk for musculoskeletal injury. Multiple studies have found that athletes who are post-SRC have higher risk for musculoskeletal injury compared to their counterparts. A small body of research suggests that impairments in motor control are associated with musculoskeletal injury risk. Motor control involves the perception and processing of sensory information and subsequent coordination of motor output within the central nervous system to perform a motor task. Motor control is inclusive of motor planning and motor learning. If sensory information is not accurately perceived or there is interference with sensory information processing and cognition, motor function will be altered, and an athlete may become vulnerable to injury during sport participation. Athletes with SRC show neuroanatomic and neurophysiological changes relevant to motor control even after meeting return to sport criteria, including a normal neurological examination, resolution of symptoms, and return to baseline function on traditional concussion testing. In conjunction, altered motor function is demonstrated after SRC in muscle activation and force production, movement patterns, balance/postural stability, and motor task performance, especially performance of a motor task paired with a cognitive task (i.e., dual-task condition). The clinical implications of this conceptual framework include a need to intentionally address motor control impairments after SRC to mitigate musculoskeletal injury risk and to monitor motor control as the athlete progresses through the return to sport continuum.  相似文献   
8.
Education Preparation Programs (EPPs) are increasingly pressured to demonstrate alignment between program supports and candidates’ outcomes. Using mixed methods, we studied the Early Field Immersion School (EFIS), an effort to improve candidates’ early field experiences. Participants included 171 candidates enrolled in a graduate certificate program and 11 university-based faculty. EFIS candidates spent increased time in early field experiences, yet EFIS was not associated with candidates’ performance at program exit. Although we found that while candidates and faculty alike valued EFIS supports, participation was negatively associated with perceptions of preparedness. We discuss these discrepancies and offer suggestions for ongoing research.  相似文献   
9.
重大体育赛事的举办在一定程度上能推动承办城市转型发展,但也可能对当地经济产生某种不良影响,这主要源于对重大体育赛事与城市经济发展的内在规律和作用机制认识不够清晰。以2000-2017年22项具有全国影响力的重大体育赛事为基础,利用中国70个大中城市面板数据,采用双重差分法,分析重大体育赛事对城市经济发展的影响。发现:全样本数据下重大体育赛事的举办会促进城市第一产业向第二、第三产业发展;对比国内和国际赛事,重大体育赛事对第三产业的促进作用均显著高于第二产业;以1 085家上市公司数据为样本,采用事件研究法进行分析,发现不同行业利用重大体育赛事的窗口期存在显著差异。  相似文献   
10.
文章结合《房屋建筑学》教学的现状和主要问题,对课程的改革进行了探讨,主要包括课堂教学、实践环节和课程设计三个方面。通过走出去、领回来和动手做三个方面的措施,以期得到良好的教学效果,培养新时代土木工程的专业人才。  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