全文获取类型
收费全文 | 2690篇 |
免费 | 53篇 |
国内免费 | 3篇 |
专业分类
教育 | 1863篇 |
科学研究 | 155篇 |
各国文化 | 38篇 |
体育 | 361篇 |
综合类 | 1篇 |
文化理论 | 45篇 |
信息传播 | 283篇 |
出版年
2023年 | 8篇 |
2022年 | 18篇 |
2021年 | 25篇 |
2020年 | 57篇 |
2019年 | 98篇 |
2018年 | 119篇 |
2017年 | 129篇 |
2016年 | 121篇 |
2015年 | 67篇 |
2014年 | 88篇 |
2013年 | 579篇 |
2012年 | 80篇 |
2011年 | 83篇 |
2010年 | 64篇 |
2009年 | 69篇 |
2008年 | 83篇 |
2007年 | 95篇 |
2006年 | 67篇 |
2005年 | 72篇 |
2004年 | 68篇 |
2003年 | 76篇 |
2002年 | 57篇 |
2001年 | 48篇 |
2000年 | 43篇 |
1999年 | 37篇 |
1998年 | 32篇 |
1997年 | 28篇 |
1996年 | 30篇 |
1995年 | 32篇 |
1994年 | 28篇 |
1993年 | 39篇 |
1992年 | 24篇 |
1991年 | 28篇 |
1990年 | 18篇 |
1989年 | 21篇 |
1988年 | 22篇 |
1987年 | 19篇 |
1986年 | 17篇 |
1985年 | 14篇 |
1984年 | 20篇 |
1983年 | 13篇 |
1982年 | 14篇 |
1981年 | 17篇 |
1980年 | 6篇 |
1979年 | 6篇 |
1978年 | 9篇 |
1977年 | 8篇 |
1976年 | 9篇 |
1975年 | 6篇 |
1967年 | 4篇 |
排序方式: 共有2746条查询结果,搜索用时 234 毫秒
231.
Christian Vater Andrew Mark Williams Ernst-Joachim Hossner 《International review of sport and exercise psychology》2020,13(1):81-103
ABSTRACT The role and importance of peripheral vision have been discussed across various sports. Yet, its functionality remains unclear and the terms employed in the literature to characterize the use of peripheral vision are not well defined. We present a review of 29 studies focusing on the use of peripheral vision in sports. We focus on the methodological approaches employed to study its use and identify the mechanisms that may underlie the effective use of peripheral vision in sport. We define key differences between ‘gaze anchors’ and ‘visual pivots’ and introduce the concept of a ‘foveal spot’. All three gaze behaviors, while being characterized by a consistent, dynamically adjustable gaze location, have different functionalities. A gaze anchor is a cue-optimized position used for the monitoring of peripheral cues and avoiding the negative consequences of saccades (i.e. information suppression), especially under time pressure. A visual pivot is a distance-optimized location between relevant cues which allows athletes to optimally initiate saccades to those cues, especially if the costs of eye-movements are low. A foveal spot is primarily used for information processing via the fovea. Finally, we highlight suggestions for future research to improve our understanding of the functional differences between these gaze behaviors. 相似文献
232.
AbstractThe vast majority of social scientific studies of sport have been secular in nature and/or have tended to ignore the importance of studying the religious aspects of sport. In light of this, a recent study has sought to encourage sociologists of sport not to divorce the ‘religious’ and the ‘sacred’ from their studies. In response to this call, the goal of the current essay is to explore how the conception of Christianity as ‘public religion’ can be utilized to help justify the use of a Christian sociological approach for studying the social scientific aspects of sport. After making a case for Christianity as public religion, we conclude that many of the sociological issues inherent in modern sport are an indirect result of its increasing secularization and argue that this justifies the need for a Christian sociological approach. We encourage researchers to use the Bible, the tools of Christian theology and sociological concepts together, so to inform analyses of modern sport from a Christian perspective. 相似文献
233.
234.
The present study examines links between civic engagement (voting, volunteering, and activism) during late adolescence and early adulthood, and socioeconomic status and mental and physical health in adulthood. Using nationally representative data from the National Longitudinal Study of Adolescent to Adult Health, a propensity score matching approach is used to rigorously estimate how civic engagement is associated with outcomes among 9,471 adolescents and young adults (baseline Mage = 15.9). All forms of civic engagement are positively associated with subsequent income and education level. Volunteering and voting are favorably associated with subsequent mental health and health behaviors, and activism is associated with more health-risk behaviors and not associated with mental health. Civic engagement is not associated with physical health. 相似文献
235.
236.
237.
ABSTRACT The effectiveness of 8-week force-velocity optimised training was assessed in highly trained professional rugby league athletes. Players (age 24 ± 3 years; body mass 94.9 ± 21.6 kg; height 181.3 ± 6.0 cm) were strength-matched and assigned to a force-velocity optimised group (OP; n = 15) or a general strength-power group (GP; n = 14). Tests included 10-m, 20-m sprints, 3 repetition-maximum squat and squat jumps over five load conditions to ascertain vertical force-velocity relationship. ANCOVA revealed there was a group effect for force-velocity deficit (P < 0.001), with the OP two-fold greater than the GP group (OP pre: 51.13 ± 31.42%, post: 62.26 ± 31.45%, GP pre: 33.00 ± 19.60%, post: 31.14 ± 31.45%, P < 0.001). There were further group effects for 3RM squat (OP pre: 151.17 ± 22.95 kg, post: 162.17 ± 24.16 kg, GP pre: 156.43 ± 25.07 kg, post: 163.39 ± 25.39 kg, P < 0.001), peak power (OP pre: 3195 ± 949 W, post: 3552 ± 1033 W, GP pre: 3468 ± 911 W, post: 3591 ± 936 W, P < 0.001), and SJ (OP pre: 39.79 ± 7.80 cm, post: 42.69 ± 7.83 cm, GP pre: 40.44 ± 6.23 cm, post: 41.14 ± 5.66 cm, P < 0.001). Prescribing F-V deficit training is superior for improving physical performance within highly trained RL players. 相似文献
238.
239.
This study explores academic libraries’ potential uses of the mobile application Yik Yak, with particular focus on patrons’ anonymous feedback about library services and spaces. Over a 232-day period, the authors observed the Yik Yak feed for their university and recorded all yaks related to the library. A content analysis of the 249 library-related yaks found six distinct purposes that these library-related yaks served, from the perspective of the patron, which are of interest to the library: asking questions about library services; reporting problems with library spaces; reprimanding violations of and encouraging adherence to library policies; sharing compliments about library services; demons-trating need for improved library services; and discussing and offering feedback about library programs. This study reveals several opportunities for academic libraries to engage with Yik Yak in order to serve their patrons better, including providing virtual reference services, monitoring problems within the building, developing proactive approaches to policy enforce-ment, gathering honest and continuous feedback about the library's strengths, and identifying opportunities to improve and expand services. Implications for practice are discussed. 相似文献
240.
Mark Eaton 《Journal of Web Librarianship》2017,11(1):69-78
Visualizations can add value to raw library data. Tools that programmatically make such visualizations interactive can further increase the value of these data by giving librarians visual tools to analyze their datasets. To demonstrate these benefits, Kingsborough Community College Library built SeeCollections (http://b7jl.org/seecollections), a Web application that visualizes the libraries’ collections of books and e-books. This article discusses the how SeeCollections gathers data from Kingsborough's discovery layer API (Application Programming Interface) and transforms these data to create visualizations for the Web. SeeCollections is a lightweight, proof-of-concept data application based on a vendor API. API data are often accessible in academic libraries but are frequently underutilized. SeeCollections was built to demonstrate the immediate value of these API data sources to Kingsborough librarians by providing a visual interface to discovery layer data. Keeping in mind the broader literature on data visualization, this article will explore how SeeCollections was built. 相似文献