全文获取类型
收费全文 | 607篇 |
免费 | 11篇 |
国内免费 | 3篇 |
专业分类
教育 | 448篇 |
科学研究 | 55篇 |
各国文化 | 6篇 |
体育 | 58篇 |
文化理论 | 10篇 |
信息传播 | 44篇 |
出版年
2022年 | 6篇 |
2021年 | 8篇 |
2020年 | 11篇 |
2019年 | 17篇 |
2018年 | 30篇 |
2017年 | 17篇 |
2016年 | 15篇 |
2015年 | 15篇 |
2014年 | 13篇 |
2013年 | 106篇 |
2012年 | 15篇 |
2011年 | 17篇 |
2010年 | 14篇 |
2009年 | 14篇 |
2008年 | 14篇 |
2007年 | 10篇 |
2006年 | 9篇 |
2005年 | 13篇 |
2004年 | 13篇 |
2003年 | 13篇 |
2002年 | 8篇 |
2001年 | 9篇 |
2000年 | 5篇 |
1998年 | 9篇 |
1997年 | 7篇 |
1995年 | 7篇 |
1993年 | 5篇 |
1992年 | 5篇 |
1991年 | 6篇 |
1990年 | 8篇 |
1989年 | 6篇 |
1988年 | 5篇 |
1986年 | 6篇 |
1985年 | 7篇 |
1984年 | 5篇 |
1982年 | 12篇 |
1981年 | 5篇 |
1980年 | 5篇 |
1979年 | 8篇 |
1978年 | 15篇 |
1977年 | 5篇 |
1976年 | 9篇 |
1975年 | 4篇 |
1974年 | 4篇 |
1972年 | 4篇 |
1971年 | 5篇 |
1969年 | 9篇 |
1959年 | 5篇 |
1957年 | 7篇 |
1956年 | 4篇 |
排序方式: 共有621条查询结果,搜索用时 15 毫秒
51.
Schmitt KU Wider D Michel FI Brügger O Gerber H Denoth J 《Sports biomechanics / International Society of Biomechanics in Sports》2012,11(1):57-72
Wrist injuries are frequently observed after falls in snowboarding. In this study, laboratory experiments mimicking forward and backward falls were analysed. In six different falling scenarios, participants self-initiated falls from a static initial position. Eighteen volunteers conducted a total of 741 trials. Measurements were taken for basic parameters describing the kinematics as well as the biomechanical loading during impact, such as impact force, impact acceleration, and velocity. The effective mass affecting the wrist in a fall also was determined. The elbow angle at impact showed a more extended arm in backward falls compared to forward falls, whereas the wrist angle at impact remained similar in forward and backward falls. The study results suggest a new performance standard for wrist guards, indicating the following parameters to characterize an impact: an effective mass acting on one wrist of 3-5 kg, an impact angle of 75 degrees of the forearm relative to the ground, and an impact velocity of 3 m/s. 相似文献
52.
BACKGROUND: Information technology (IT) has slowly been implemented in many health-care organizations (i.e. hospitals). The use of computers has advanced to home care and long-term facilities. Consequently, it is important that nurses are able to demonstrate competence and feel confident in the use of IT. Yet, research has reported that nursing students have varying degrees of competence and experience with IT. AIMS: The purpose of this study was to ascertain nursing students' and nursing educators' self-reported attitudes, skills and experiences using IT. METHODS: Data were collected through a written survey distributed and completed by 247 nursing students (45 of whom were registered nurses who participated in extension courses) and 52 staff members from the nursing faculty at a university in Sweden. RESULTS: Two-thirds of the students and 92% of the nursing educators had access to the Internet from their homes. Of the students, 71% identified their IT skills as being sufficient for their current or future work as a registered nurse. Nurse educators were less confident in the students' ability, reporting that only 29% of nursing students had sufficient IT skills. Comparatively, 48% of the nursing educators believed that they themselves had sufficient IT skills for their role as a nurse educator. CONCLUSIONS: It is important that nursing students have basic IT skills and are familiar with e-mail, word-processing and various databases on the World Wide Web. Findings indicate that participants had a deficit in these skills, suggesting the need to integrate IT into the nursing curriculum. 相似文献
53.
54.
H.R. Kells Self‐Study Processes: A Guide to Self‐Evaluation in Higher Education (4th Edition). Phoenix, AZ: The Oryx Press, 1995. Paperback. ISBN 0 89774 903 0 Price $34.95 (North America) 194pp David Warner and David Palfreyman (eds) Higher Education Management, The Key Elements. Buckingham: The Society for Research on Higher Education and Open University Press, 1996. Paperback. ISBN 0 335 19569 5 Price £19.99. 239 pages. 相似文献
55.
Laerke Sass Elín Bjarnadóttir Jakob Stokholm Bo Chawes Rebecca K. Vinding Anna-Rosa C. Mora-Jensen Jonathan Thorsen Sarah Noergaard Bjørn H. Ebdrup Jens R.M. Jepsen Birgitte Fagerlund Klaus Bønnelykke Lotte Lauritzen Hans Bisgaard 《Child development》2021,92(4):1624-1635
A double-blind randomized controlled trial of n-3 long-chain polyunsaturated fatty acid (n-3 LCPUFA) supplementation or matching placebo during third trimester of pregnancy was conducted within the COPSAC2010 mother-child cohort consisting of 736 women and their children. The objective was to determine if maternal n-3 LCPUFA pregnancy supplementation affects offspring neurodevelopment until 6 years. Neurodevelopment was evaluated in 654 children assessing age of motor milestone achievement, language development, cognitive development, general neurodevelopment, and emotional and behavioral problems. Maternal n-3 LCPUFA supplementation during pregnancy improved early language development and reduced the impact of emotional and behavioral problems. The n-3 LCPUFA supplementation was in boys associated with the earlier achievement of gross motor milestones, improved cognitive development, and a reduced impact of emotional and behavioral problems. 相似文献
56.
Neoliberalism has become a highly dominating and taken-for-granted way of organising the university sector around the world. In the critical educational literature, this market-based rationality has been scrutinised in detail over the past decades. However, rather scant attention has been directed to how university managers and administrators, apart from setting up quasi-markets, may intervene more directly to give the invisible hand of the market a helping hand. Aiming to address this lacuna, the purpose of the current article is to develop an empirically grounded taxonomy of different types of such interventions, and to theorise them in terms of the different facets of the neoliberal milieu that they reproduce and the various forms of subjectivising work among academics that they seek to engender. We do so by means of a qualitative study of so-called ‘Grants Offices’ at three Swedish universities. The findings arguably add to and problematise our understanding of how neoliberal markets work in academia in three different ways. First, while extant research has noted that university managers and administrators may intervene beyond the setting up of neoliberal markets per se, our study is to our knowledge the first one that identifies and systematises a broad array of such interventions. Second, it problematises the view of neoliberal markets as a form of monolithic entity that produces a uniform competitive pressure on academics. Third, and related, it furthers our understanding of the type of subjectivity that competitive milieus are assumed to bring about. 相似文献
57.
Interchange - This is the second of two papers on a novel physical science course for student teachers that develops and uses an imaginative approach to Primary Physical Science Education.... 相似文献
58.
当今时代,人类差不多生活在数字的漩涡里。数学在时空实在中的可应用性问题,本质上是一个知识论的问题,文章分四个步骤对该问题进行了剖析:先是讨论亚里士多德的数学作为一种抽象的观点,随之讨论柏拉图的数学理念论,继之讨论康德的构造主义纲领,最后讨论维特根斯坦的规则理论。文中作者试图将康德与维特根斯坦的观点结合起来,以发展出一种“规则主义”,从而突破构造主义的限制,为古典数学留块地盘。在文章的最后,作者还指出了数学化的限度。 相似文献
59.
Mojtaba Soltanlou Andra Coldea Christina Artemenko Ann‐Christine Ehlis Andreas J. Fallgatter Hans‐Christoph Nuerk Thomas Dresler 《Mind, Brain, and Education》2019,13(4):313-325
It is under debate whether the neural representation of numbers and letters might rely on distinct neural correlates, or on a mostly shared neural network. In the present study, a total of 47 children in fifth grade (Experiment 1) and sixth grade (Experiment 2) simply copied numbers and letters on a touch screen while brain activation changes were recorded by means of functional near‐infrared spectroscopy (fNIRS). fNIRS data of both experiments and a joint analysis revealed that a shared neural network, particularly in the left hemisphere, was activated in response to both number and letter copying. Interestingly, no difference was observed in brain activation patterns between these two stimuli, as revealed by Bayesian analysis. Our findings indicate that both number and letter copying lead to similar brain activation in children. We further suggest methodological and applied applications of these findings in the frame of educational neuroscience. 相似文献
60.
Mihye Won Heiko Krabbe Siv Ling Ley David F. Treagust Hans E. Fischer 《Educational Assessment》2017,22(2):95-110
In this study, we investigated the value of a concept map marking guide as an alternative formative assessment tool for science teachers to adopt for the topic of energy. Eight high school science teachers marked students’ concept maps using an itemized holistic marking guide. Their marking was compared with the researchers’ marking and the scores of a multiple-choice diagnostic test. Statistical analysis revealed that teachers evaluated students’ concept maps consistently, but the concept map scores were only mildly correlated with the multiple-choice test scores. We explored what each assessment method revealed in terms of students’ understanding with one student’s performance as a showcase. Teachers’ views on using the marking guide of concept maps as an assessment tool were also included. We discuss the value of the concept map marking guide as a formative assessment tool for science teachers to create and modify in order to encourage students’ conceptual learning. 相似文献