全文获取类型
收费全文 | 288篇 |
免费 | 8篇 |
专业分类
教育 | 195篇 |
科学研究 | 16篇 |
各国文化 | 6篇 |
体育 | 46篇 |
文化理论 | 5篇 |
信息传播 | 28篇 |
出版年
2023年 | 2篇 |
2022年 | 8篇 |
2021年 | 8篇 |
2020年 | 5篇 |
2019年 | 17篇 |
2018年 | 25篇 |
2017年 | 29篇 |
2016年 | 26篇 |
2015年 | 5篇 |
2014年 | 15篇 |
2013年 | 45篇 |
2012年 | 3篇 |
2011年 | 14篇 |
2010年 | 18篇 |
2009年 | 14篇 |
2008年 | 3篇 |
2007年 | 11篇 |
2006年 | 6篇 |
2005年 | 4篇 |
2004年 | 4篇 |
2003年 | 4篇 |
2002年 | 7篇 |
2001年 | 2篇 |
2000年 | 4篇 |
1999年 | 3篇 |
1998年 | 1篇 |
1997年 | 2篇 |
1996年 | 1篇 |
1995年 | 2篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1991年 | 1篇 |
1986年 | 1篇 |
1985年 | 1篇 |
1983年 | 1篇 |
1982年 | 1篇 |
1975年 | 1篇 |
排序方式: 共有296条查询结果,搜索用时 0 毫秒
1.
2.
Debbie Risius Alexandra Milligan Jason Berns Nicola Brown 《Journal of sports sciences》2017,35(9):842-851
To assess the effectiveness of breast support previous studies monitored breast kinematics and kinetics, subjective feedback, muscle activity (EMG), ground reaction forces (GRFs) and physiological measures in isolation. Comparing these variables within one study will establish the key performance variables that distinguish between breast supports during activities such as running. This study investigates the effects of changes in breast support on biomechanical, physiological and subjective measures during running. Ten females (34D) ran for 10 min in high and low breast supports, and for 2 min bare breasted (2.8 m·s?1). Breast and body kinematics, EMG, expired air and heart rate were recorded. GRFs were recorded during 10 m overground runs (2.8 m·s?1) and subjective feedback obtained after each condition. Of the 62 variables measured, 22 kinematic and subjective variables were influenced by changes in breast support. Willingness to exercise, time lag and superio-inferior breast velocity were most affected. GRFs, EMG and physiological variables were unaffected by breast support changes during running. Breast displacement reduction, although previously advocated, was not the most sensitive variable to breast support changes during running. Instead breast support products should be assessed using a battery of performance indicators, including the key kinematic and subjective variables identified here. 相似文献
3.
Previous work has presented both a theoretical foundation for designing terrain park jumps that control landing impact and computer software to accomplish this task. US ski resorts have been reluctant to adopt this more engineered approach to jump design, in part due to questions of feasibility. The present study demonstrates this feasibility. It describes the design, construction, measurement, and experimental testing of such a jump. It improves on the previous efforts with more complete instrumentation, a larger range of jump distances, and a new method for combining jumper- and board-mounted accelerometer data to estimate equivalent fall height, a measure of impact severity. It unequivocally demonstrates the efficacy of the engineering design approach, namely that it is possible and practical to design and build free style terrain park jumps with landing surface shapes that control for landing impact as predicted by the theory. 相似文献
4.
Good-quality sexuality education can be effective in reducing sexual health risks, but may also be disconnected from the lived realities of learners’ lives and reinforce gendered stereotypes. In line with the trend towards ‘empowerment’ in and through sexuality education, we implemented a pilot sexuality intervention with Grade 10 participants following a rigorous consultation process. Nine weekly group dialogues were held with 11 participants, with 2 follow-up sessions the next year. Freirian principles of critical consciousness and dialogical pedagogy, infused with discursive psychological understandings, were used to foreground gendered/sexual norms and to provide recognition for participants in a variety of gendered and sexual subject positions. Sessions were recorded, the facilitator kept a diary, and participants were asked to evaluate the intervention. The dialogical format of the group generated curiosity and engagement, and some participants took up a ‘responsible’ sexual subject position in a reflexive manner. A partial normalisation of some ‘hidden’ aspects of sex was enabled, and critical consciousness around some gendered inequities was promoted. We argue, first, that it is not so much sexuality education that young people need, but sexuality dialogues, and second, that a discursive psychology framework provides a nuanced and fruitful dimension to Freirean inspired ‘empowerment’ sexuality interventions. 相似文献
5.
Lucia Mason Patrik Pluchino Nicola Ariasi 《Educational technology research and development : ETR & D》2014,62(6):663-685
Students search the Web frequently for many purposes, one of which is to search information for academic assignments. Given the huge amount of easily accessible online information, they are required to develop new reading skills and become more able to effectively evaluate the reliability of web sources. This study investigates the distribution of their visual attention while reading webpages using eye-tracking methodology. The aim was to examine whether information received differential attention depending on the reliability of the source and whether the individual characteristics of topic-specific prior knowledge and epistemic beliefs moderated their visual behavior during reading. Factual knowledge after reading was also examined. Forty-nine university students read four webpages providing verbal and graphical information about the universal validity of the central dogma of molecular biology, which varied for reliability. Indices of first-pass and second-pass reading or inspection were used to trace the processing of information within each page. Findings revealed that readers made an implicit source evaluation as they spent a longer time inspecting the pictures about the more and less familiar information within the most reliable source during the immediate, more automatic, processing. In addition, topic-specific epistemic beliefs moderated this processing as readers with more availing convictions about knowledge attended more the information provided in pages that required more discernment. Moreover, readers increased their factual knowledge of the topic after reading. Educational implications are outlined. 相似文献
6.
Pietro Boscolo Nicola AriasiLaura Del Favero Chiara Ballarin 《Learning and Instruction》2011,21(3):467-480
This study investigated the flow of interest in a reading-to-write activity. It was hypothesized that (a) different contents in a text would stimulate different types of interest and (b) different writing tasks would impact differently students’ use of interesting text segments. Participants were 247 11th- and 12th-grade students, who were divided into 6 groups according to a 2 (interesting vs. uninteresting topic) × 3 (type of writing task) design. While reading, students rated novelty, curiosity, impressiveness, importance, and willingness to reflect on each text segment. Participants were then assigned to one of three writing tasks, namely argumentation, text designing, and composition. Results showed that concepts were regarded as important, events/activities as impressive, and evaluations as most worthy of reflection. Topic interest was explicitly expressed mainly in the argumentation condition, where increased topic interest scores after reading and writing were also found. 相似文献
7.
Nicola Grove, speech/language therapist, and Sine McDougall, psychologist, from the Division of Psychiatry of Disability, Department of Mental Health Sciences, St. George's Hospital Medical School, London, explore use of Makaton signs in teacher-directed and free play settings by children with severe learning difficulties. 相似文献
8.
The past decade has witnessed increased interest in the visual search behaviour of athletes. Little is known, however, about the relationship between anxiety and eye movements in sport performers or about the extent to which athletes' planned and actual visual search strategies correspond. To address these issues, we conducted two studies. In Study 1, eight expert female gymnasts were presented with three digital slides of a model performing a skill that is known to be anxiety-provoking in this sport--namely, the 'back flip' on the beam. By varying the height of the beam and the presence or absence of safety mats, the slides differed in the amount of anxiety that they elicited vicariously in the viewer. In the study, the gymnasts were asked to imagine themselves in the position of the depicted model and to describe the anxiety that they felt. As they viewed the slides, their eye movements were recorded. As predicted, anxiety was associated with an increase in the number of fixations to peripheral areas. In addition, the more 'threatening' slides elicited significantly more fixations than the less feared images. In Study 2, the plans of 15 equestrian performers (5 expert, 5 intermediate and 5 novice) were elicited as they engaged in a virtual 'walk' around a computerized show-jumping course. Contrary to expectations, the congruence between intended and actual search behaviour was not significantly greater for expert riders than for the less skilled groups. Also, the fact that the top riders allocated more fixations to slides than the less skilled performers challenged the prediction that expertise would be associated with economy of visual search. Finally, as expected, the expert riders were significantly less dependent on the overall 'course plan' than the intermediate and novice equestrian performers when inspecting the fences. 相似文献
9.
Coopetition, i.e., cooperation between competing actors, has become a pervasive strategy for innovative firms. The primary focus of studies investigating coopetition centers on inter-firm relationships, highlighting the benefits, limits and configurational patterns of cooperative relationships between competing firms. Only a small, emerging group of studies seeks to extend the concept to the intra-firm level, stressing the existence and effects of competition and cooperation between units that are part of the same organization. This paper contributes to this latter group by investigating the effects of internal coopetition on knowledge and innovation sharing and highlighting the fundamental role of knowledge brokers in managing the resulting tensions. Based on a qualitative case study of the video game publisher Ubisoft, we stress how the tensions raised by internal coopetitive settings limit knowledge sharing between units, and we analyze the mechanisms through which the knowledge broker helps to overcome these limits. We identify three main functions of this knowledge broker that allow the promotion of knowledge and innovation transfer to occur between coopeting units: (1) protecting the unit’s competitive advantage by introducing a lagging principle in the transfer process, (2) reducing sharing costs by standardizing innovative solutions, and (3) enhancing awareness of and trust in innovative solutions by centralizing knowledge diffusion. 相似文献
10.
Adriana Bernardi Francesca Becherini Marco Verità Patrick Ausset Maura Bellio Ulrike Brinkmann Helene Cachier Anne Chabas Felix Deutsch Marie-Pierre Etcheverry Franco Geotti Bianchini Ricardo H.M. Godoi Velichka Kontozova-Deutsch Roger Lefèvre Tiziana Lombardo Peter Mottner Chiara Nicola Isabelle Pallot-Frossard René Van Grieken 《Journal of Cultural Heritage》2013,14(6):527-536
The methodology of protecting the European stained glass windows against environmental risk (e.g. meteorological factors, air pollution, microorganisms) by means of an external glazing is not new. In spite of many scientific studies carried out in the last 20 years, some questions were still up for discussion. The European VIDRIO (2002–2005) project gave an answer to these questions. The research carried out by the different project partners established a new multidisciplinary approach aimed at evaluating the efficiency of the protective glazing systems and their effects on stained glass windows conservation, and finally at assessing the most appropriate strategy to preserve stained glass windows. Scientific results showed that the so-called isothermal glazing (i.e. ventilation by the air coming from the inside of the building) protected efficiently the ancient stained glass window from environmental attack (i.e. rain, pollutants, condensation, thermal shocks) with very limited secondary effects. The scientific research highlighted that its efficiency was strongly related to the technical design of the protective system. In particular, the ventilation and the size of the interspace had to be carefully considered. The research developed within the VIDRIO project was turned into general recommendations to the owners and practitioners on the best practice for the stained glass windows future conservation. 相似文献