收费全文 | 23859篇 |
免费 | 2335篇 |
国内免费 | 1067篇 |
耳鼻咽喉 | 28篇 |
儿科学 | 173篇 |
妇产科学 | 71篇 |
基础医学 | 909篇 |
口腔科学 | 63篇 |
临床医学 | 5394篇 |
内科学 | 3896篇 |
皮肤病学 | 30篇 |
神经病学 | 6755篇 |
特种医学 | 703篇 |
外科学 | 1234篇 |
综合类 | 3494篇 |
现状与发展 | 5篇 |
预防医学 | 1053篇 |
眼科学 | 105篇 |
药学 | 1519篇 |
22篇 | |
中国医学 | 1762篇 |
肿瘤学 | 45篇 |
2024年 | 49篇 |
2023年 | 546篇 |
2022年 | 805篇 |
2021年 | 1465篇 |
2020年 | 1332篇 |
2019年 | 1189篇 |
2018年 | 1263篇 |
2017年 | 1231篇 |
2016年 | 1219篇 |
2015年 | 1049篇 |
2014年 | 2006篇 |
2013年 | 2346篇 |
2012年 | 1543篇 |
2011年 | 1480篇 |
2010年 | 1232篇 |
2009年 | 1100篇 |
2008年 | 1036篇 |
2007年 | 1029篇 |
2006年 | 927篇 |
2005年 | 689篇 |
2004年 | 582篇 |
2003年 | 506篇 |
2002年 | 489篇 |
2001年 | 364篇 |
2000年 | 318篇 |
1999年 | 243篇 |
1998年 | 201篇 |
1997年 | 143篇 |
1996年 | 109篇 |
1995年 | 91篇 |
1994年 | 101篇 |
1993年 | 88篇 |
1992年 | 58篇 |
1991年 | 50篇 |
1990年 | 42篇 |
1989年 | 36篇 |
1988年 | 35篇 |
1987年 | 41篇 |
1986年 | 34篇 |
1985年 | 27篇 |
1984年 | 37篇 |
1983年 | 30篇 |
1982年 | 30篇 |
1981年 | 22篇 |
1980年 | 14篇 |
1979年 | 11篇 |
1978年 | 10篇 |
1977年 | 5篇 |
1976年 | 3篇 |
1974年 | 2篇 |
Methods: Day 3 to day 7 after admission to a stroke unit, 64 persons with stroke were assessed twice, using the SwePASS, by two physiotherapists. Inter-rater reliability was determined using percentage-agreement and the rank-invariant method: relative position, relative concentration, and relative rank variance.
Results: The raters showed a percentage agreement of ≥75% in the assessments using the SwePASS. For 9 of the 12 items, the percentage agreement was >80%. For 8 of the 12 items, there was a statistically significant change in position, revealed in relative position values between 0.08 and 0.15. Three items had statistically significant positive relative concentration values between ?0.11 and 0.10. Except for a statistically significant negligible relative variance value of 0.01 for the items 1 and 8, there was no relative variance.
Conclusions: The SwePASS shows an acceptable inter-rater reliability, albeit with potential for improvement. The reliability can be improved by a consensus how to interpret the scale between the raters prior to implementation in the clinic. 相似文献
Objective: To quantify spatiotemporal and kinematic BW characteristics in post-stroke community ambulators and compare their performance to controls.
Methods: Individuals post-stroke (n = 15, 60.1 ± 12.9 years, forward speed: 1.13 ± 0.23 m/s) and healthy adults (n = 12, 61.2 ± 16.2 years, forward speed: 1.40 ± 0.13 m/s) performed forward walking (FW) and BW during a single session. Step characteristics and peak lower extremity joint angles were extracted using 3D motion analysis and analyzed with mixed-method ANOVAs (group, walking condition).
Results: The stroke group demonstrated greater reductions in speed, step length and cadence and a greater increase in double-support time during BW compared to FW (p < .01). Compared to FW, the post-stroke group demonstrated greater reductions in hip extension and knee flexion during BW (p < .05). The control group demonstrated decreased plantarflexion and increased dorsiflexion during BW, but these increases were attenuated in the post-stroke group (p < .05).
Conclusions: Assessment of BW can unmask post-stroke walking impairments not detected during typical FW. BW impairments may contribute to the mobility difficulties reported by adults post-stroke. Therefore, BW should be assessed when determining readiness for home and community ambulation. 相似文献