全文获取类型
收费全文 | 1187篇 |
免费 | 21篇 |
专业分类
教育 | 817篇 |
科学研究 | 107篇 |
各国文化 | 15篇 |
体育 | 152篇 |
文化理论 | 24篇 |
信息传播 | 93篇 |
出版年
2023年 | 10篇 |
2022年 | 13篇 |
2021年 | 16篇 |
2020年 | 27篇 |
2019年 | 43篇 |
2018年 | 48篇 |
2017年 | 71篇 |
2016年 | 67篇 |
2015年 | 35篇 |
2014年 | 50篇 |
2013年 | 245篇 |
2012年 | 44篇 |
2011年 | 39篇 |
2010年 | 43篇 |
2009年 | 38篇 |
2008年 | 46篇 |
2007年 | 25篇 |
2006年 | 27篇 |
2005年 | 28篇 |
2004年 | 27篇 |
2003年 | 20篇 |
2002年 | 26篇 |
2001年 | 11篇 |
2000年 | 11篇 |
1999年 | 9篇 |
1998年 | 8篇 |
1997年 | 11篇 |
1996年 | 10篇 |
1995年 | 7篇 |
1994年 | 6篇 |
1993年 | 11篇 |
1992年 | 10篇 |
1991年 | 9篇 |
1990年 | 3篇 |
1989年 | 14篇 |
1988年 | 7篇 |
1987年 | 3篇 |
1986年 | 6篇 |
1985年 | 6篇 |
1984年 | 4篇 |
1982年 | 10篇 |
1981年 | 5篇 |
1980年 | 3篇 |
1979年 | 3篇 |
1978年 | 7篇 |
1973年 | 3篇 |
1957年 | 3篇 |
1944年 | 3篇 |
1923年 | 3篇 |
1866年 | 2篇 |
排序方式: 共有1208条查询结果,搜索用时 15 毫秒
1.
ABSTRACT Full three-dimensional movements and external moments in golfers’ knees and the possible involvement in injuries have not been evaluated using motion capture at high sample frequencies. This study measured joint angles and external moments around the three anatomical axes in both knees of 10 professional golfers performing golf drives whilst standing on two force plates in a motion capture laboratory. Significant differences were found in the knee joint moments between the lead and trail limbs for the peak values and throughout all stages during the swing phase. A significantly higher net abduction moment impulse was seen in the trail limb compared with the lead limb (?0.518 vs. ?0.135 Nms.kg?1), indicating greater loading over the whole swing, which could contribute to knee lateral compartment or anterior cruciate ligament injuries. A significant correlation (r = ?0.85) between clubhead speed at ball contact and maximum joint moment was found, with the largest correlations being found for joint moments at the top of the backswing event and at the end of the follow-through. Therefore, although knee moments can contribute to high clubhead speeds, the large moments and impulses suggest that they may also contribute to chronic knee injuries or exacerbate existing conditions. 相似文献
2.
3.
4.
5.
6.
7.
Rachel Ivy Clarke 《Library & information science research》2018,40(3-4):255-261
“How we done it good” publications—a genre concerning project-based approaches that describe how (and sometimes why) something was done—are often rebuked in the library research community for lacking traditional scientific validity, reliability, and generalizability. While scientific methodologies may be a common approach to research and inquiry, they are not the only methodological paradigms. This research posits that the how we done it good paradigm in librarianship reflects a valid and legitimate approach to research. By drawing on the concept of research through design, this study shows how these how we done it good projects reflect design methodologies which draw rigor from process, invention, relevance, and extensibility rather than replicability, generalizability, and predictability. Although these projects implicitly reflect research through design, the methodology is not yet explicitly harnessed in librarianship. More support for these types of projects can be achieved by making the legitimate design framework more explicit and increasing support from publication venues. 相似文献
8.
Finding the common ground: Teachers' and employers' representations of English in an assessment context 下载免费PDF全文
There has been a long‐standing debate about how ‘English’ can be defined. Educational policy changes have typically been driven by differing representations of the subject, and have ranged from broad ‘aesthetic’ definitions to more narrow ‘functional’ views. The present study aims to analyse areas of consensus and contention in stakeholders' discourse regarding English. A questionnaire‐based survey and focus groups were used to explore how teachers and employers viewed English as a subject. Their views were conceptualised into three themes: the importance of functional English; English as atomistic versus holistic study; and English as critical thought. These themes are discussed in relation to historical definitions of ‘English’, and their implications for the future reform of English qualifications. 相似文献
9.
10.