全文获取类型
收费全文 | 138篇 |
免费 | 13篇 |
国内免费 | 1篇 |
专业分类
教育 | 112篇 |
科学研究 | 22篇 |
各国文化 | 3篇 |
体育 | 4篇 |
文化理论 | 1篇 |
信息传播 | 10篇 |
出版年
2023年 | 2篇 |
2022年 | 6篇 |
2021年 | 5篇 |
2020年 | 3篇 |
2019年 | 4篇 |
2018年 | 15篇 |
2017年 | 12篇 |
2016年 | 12篇 |
2015年 | 10篇 |
2014年 | 11篇 |
2013年 | 16篇 |
2012年 | 2篇 |
2011年 | 7篇 |
2010年 | 5篇 |
2009年 | 2篇 |
2008年 | 5篇 |
2007年 | 5篇 |
2006年 | 1篇 |
2005年 | 3篇 |
2004年 | 2篇 |
2003年 | 2篇 |
2002年 | 2篇 |
2001年 | 1篇 |
2000年 | 5篇 |
1999年 | 1篇 |
1995年 | 1篇 |
1993年 | 2篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1989年 | 1篇 |
1987年 | 1篇 |
1986年 | 1篇 |
1979年 | 1篇 |
1978年 | 1篇 |
1975年 | 1篇 |
1967年 | 1篇 |
1958年 | 1篇 |
排序方式: 共有152条查询结果,搜索用时 15 毫秒
81.
Heather J. Bachman Jessica L. Degol Leanne Elliott Laura Scharphorn Nermeen E. El Nokali Kalani M. Palmer 《Early education and development》2018,29(3):417-434
Research Findings: The present study examined the amount of exposure to math activities that children of low socioeconomic status (SES) encounter in private community-based preschool classrooms and whether greater time in these activities predicted higher math skills. Three cohorts of 4- to 5-year-old children were recruited from 30 private centers, resulting in a sample of 288 children nested within 73 preschool classrooms. Classroom observations were conducted for 150 min during fall and winter of the preschool year using a time sampling method. Preschoolers were exposed to an average daily amount of 2 min (range = 0–23) of math exposure. Hierarchical linear models were run to examine associations between math exposure and math achievement. Children’s exposure to math activities significantly and positively predicted their spring math scores, but associations between math exposure and math scores were stronger for children with lower initial cognitive abilities and self-regulation skills. Practice or Policy: Our findings revealed generally low levels of math instruction occurring in private child care centers primarily serving low-SES children. Even limited exposure to math activities predicted children’s math skills, however, which highlights the importance of math content in these settings. 相似文献
82.
83.
The current study examined within‐family relations between mothers’, fathers’, and children's objectively assessed sleep. Participants were 163 children (Mage = 10.45 years; SD = 0.62) and their parents. For 7 nights, families wore actigraphs to assess sleep duration (minutes), quality (efficiency, long wake episode, total wake minutes), and schedule (wake time). A sleep log assessed bedtime. Multilevel models indicated that children's sleep minutes, sleep efficiency, wake minutes, and wake time were associated with fluctuations in their mothers’, but not fathers’, sleep that same night. The duration and quality of mothers’ sleep was associated with both fathers’ and children's sleep that night, whereas fathers’ sleep was positively associated with only mothers’ sleep. Findings highlight the importance of examining sleep within a family context. 相似文献
84.
Sabry M. Abd‐El‐Fattah 《教育心理学》2011,31(4):497-511
The aim of the present study was to investigate whether university students can adjust their study strategies to meet the cognitive demands of testing; a metacognitive self‐regulatory skill. One hundred and fifty undergraduates attended three lectures as part of a course on the psychology of individual differences. These participants were then assigned randomly to each of two groups. In the first group, the participants were instructed to study for a test that required deep‐level cognitive processing. In the second group, the participants were instructed to study for a test that required surface‐level cognitive processing. Results of the study showed that university students do adjust their study strategies so that they are in line with the cognitive processing demands of testing. It was also found that study strategies mediated the relationship between the type of test items expected and the test performance. 相似文献
85.
Mohamed B. El Mashade 《Journal of The Franklin Institute》2005,342(5):521-550
The radar signals returning from the targets being illuminated are usually accompanied by thermal noise and clutter. Constant false alarm rate (CFAR) processors are useful for detecting these targets in a background for which the parameters of the statistical distribution are not known and may be nonstationary. The ordered-statistics (OS) CFAR technique has been proven to work satisfactorily in both multiple-target and nonuniform clutter cases. Unfortunately, the large processing time taken by this scheme limits its practical uses. The modified versions of the OS processor have been proposed to replace it in these applications. They can reduce the processing time of the single-window OS detector in half without changing its useful properties. Our goal in this paper is to provide a complete detection analysis for the OS processor along with ordered-statistic greatest-of (OSGO) and ordered-statistic smallest-of (OSSO) modified versions, for M postdetection integrated pulses when the operating environment is nonideal. Analytical results of performance are presented in both multiple-target situations and in regions of clutter power transitions. The primary and the secondary interfering targets are assumed to be fluctuating in accordance with the Swerling II target fluctuation model. As the number of noncoherently integrated pulses increases, lower threshold values and consequently better detection performances are obtained in both homogeneous and multiple-target background models. However, the false alarm rate performance of OSSO-CFAR scheme at clutter edges worsens with increasing the postdetection integrated pulses. As predicted, the OSGO-CFAR detector accommodates the presence of spurious targets in the reference window, given that their number is within its allowable range in each local window, and controls the rate of false alarm when the contents of the reference cells have clutter boundaries. The OSSO-CFAR scheme is useful in the situation where there is a cluster of radar targets amongst the estimation cells. 相似文献
86.
Jalal Ismaili El Houcine Ouazzani Ibrahimi 《Education and Information Technologies》2017,22(3):883-899
Assistive Technology (AT) revolutionized the process of learning for special needs students during the past three decades. Thanks to this technology, accessibility and educational inclusion became attainable more than any time in the history of special education. Meanwhile, assistive technology devices remain unreachable for a large number of students with disabilities, especially in under-developed and developing countries like Morocco due to a number of factors, especially, availability and affordability. Mobile learning, using smartphones and tablets in particular, may provide alternative solutions as special education tools in such countries. Additionally, open source platforms, particularly Google play store with all the applications it accommodates for disabled people, may obviate the need for monofunctional, sometimes expensive, AT devices. The present paper sets out to investigate potentials of using smartphones and tablets as alternative learning tools for assistive technology devices within formal and informal learning environments. It compares seven free Google Play medical apps with seven assistive technology devices at the level of functionality and affordability. The apps are of relevance to cases of physical as well as mental disabilities, namely hearing impairment, visual impairment, autism and speech articulation disorders. 相似文献
87.
Pedler,Mike & Abbott,Christine (2013) Facilitating action learning McGraw‐Hill (Maidenhead & New York) isbn 978‐033524597‐0 204 pp £19.99 http://www.mheducation.co.uk/9780335245970‐emea‐facilitating‐action‐learning‐a‐practitioners‐guide 下载免费PDF全文
Dr Nancy El‐Farargy 《British journal of educational technology : journal of the Council for Educational Technology》2015,46(4):E17-E18
This most helpful book supports action learning practitioners in organising collaborative working and knowledge generation and implementation. The case studies help inspire and motivate readers to take action, and the book as a whole leans towards practical guidance rather than being loaded with theory. It's a readable text for aspiring action learning practitioners aiming to drive forward and implement such ideas, and to share learning at system‐wide scale. It also serves as a quick reference guide for the personal libraries of more seasoned practitioners and other leaders and developers. If the content of this book is likely to be relevant to you, I recommend that you buy a copy for your own use. Nancy El‐Farargy 相似文献
88.
One of the major challenges facing anatomy educators is delivering the anatomy materials in fewer hours with a reduction of anatomy courses in the integrated curricula. The flipped classroom modality may be an innovative solution. However, its effectiveness remains under debate due to a lack of outcome-based research and the mixed results of students' performance. The present study aimed to determine the outcome of the flipped classroom based upon the level of student cognition. The study investigated performance on 17 multiple-choice anatomy questions as a part of the final examination of the musculoskeletal system module. The results were compared between the first-year female students of Qassim Medical College, specifically the flipped classroom group (46 students) of the academic year (2018–2019) and the traditional group (49 students) of the academic year (2017–2018). The mean differences in the students' grades on the anatomy questions at the level of knowledge, application, and analysis using Cohen's d test were 0.43, 1.41, and 1.01, respectively. These results suggest the positive impact of flipping the students' classrooms on improving their levels of thinking according to Bloom's taxonomy. Perception surveys also revealed students' enthusiasm for the pre-class activities, leading to a better performance in the class with more engagement with their peers and teachers. The present study suggested that the flipped classroom modality can be performed to compensate for the reduction of anatomy educational hours. However, further studies are recommended to investigate the best practices of the flipped classroom that fit with the students' needs and workloads. 相似文献
89.
Rachid El Hour 《Al-Masaq: Islam & the Medieval Mediterranean》2014,26(3):288-298
The Berber language has historically been a key element in the socio-cultural and ethnic fabric of the Maghrib. Consequently, in recent years there have been several initiatives to recover and interpret the information Arabic sources provide on the Berber language and the role played by Berber peoples in the consolidation of Islam in this area.Studies of the Berber language and peoples have primarily centred on chronicles and geographical sources, but scholars have devoted less attention to other sources, especially hagiographies. With the exception of some specific work, the role of the Berber language and peoples in hagiographic literature has not been systematically analysed. The analysis presented in this article suggests that some hagiographic sources, especially those written by Berber authors, while avoiding an open defence of Berber identity, in fact hid it behind comments and quotes of a linguistic nature. This study, although it includes some additional references to the Mārinid, Wa??āsid and Sa?did periods, concentrates on the Almohads, and deals with written sources, both Andalusi and Maghribi. 相似文献
90.
Peter Keith Woodward Abdellah El Kacimi Omar Laghrouche Gabriela Medero Meysam Banimahd 《浙江大学学报(A卷英文版)》2012,13(11):836-849
There are many issues surrounding the performance of critical assets on high-speed ballasted railway lines. At assets like switch & crossings and bridge transitions high track forces can be produced resulting in higher ballast settlements and hence track misalignments. The latter result in higher track forces and hence more settlement, leading to the need for increased track maintenance to ensure comfort and safety. Current technologies for solving issues like ballast movement under high-speed loading regimes are limited. However, a technique that has been well used across the UK and now increasingly overseas to stabilise and reinforce ballasted railway tracks is the application of in-situ polyurethane polymers, termed XiTRACK. This paper discusses how this technique can be used to solve these types of long-standing issues and presents actual polymer application profiles at two typical critical sites, namely a junction and a transition onto concrete slab-track. 相似文献