全文获取类型
收费全文 | 1613篇 |
免费 | 33篇 |
国内免费 | 1篇 |
专业分类
教育 | 1218篇 |
科学研究 | 103篇 |
各国文化 | 27篇 |
体育 | 100篇 |
综合类 | 1篇 |
文化理论 | 16篇 |
信息传播 | 182篇 |
出版年
2022年 | 17篇 |
2021年 | 19篇 |
2020年 | 40篇 |
2019年 | 76篇 |
2018年 | 74篇 |
2017年 | 83篇 |
2016年 | 67篇 |
2015年 | 37篇 |
2014年 | 57篇 |
2013年 | 382篇 |
2012年 | 34篇 |
2011年 | 41篇 |
2010年 | 30篇 |
2009年 | 39篇 |
2008年 | 30篇 |
2007年 | 35篇 |
2006年 | 28篇 |
2005年 | 32篇 |
2004年 | 30篇 |
2003年 | 21篇 |
2002年 | 24篇 |
2001年 | 13篇 |
2000年 | 13篇 |
1999年 | 14篇 |
1998年 | 19篇 |
1997年 | 12篇 |
1996年 | 12篇 |
1995年 | 11篇 |
1994年 | 10篇 |
1993年 | 13篇 |
1992年 | 12篇 |
1991年 | 18篇 |
1990年 | 10篇 |
1989年 | 12篇 |
1988年 | 14篇 |
1986年 | 12篇 |
1985年 | 11篇 |
1984年 | 7篇 |
1983年 | 11篇 |
1982年 | 13篇 |
1981年 | 9篇 |
1980年 | 10篇 |
1979年 | 10篇 |
1978年 | 15篇 |
1977年 | 13篇 |
1976年 | 10篇 |
1974年 | 7篇 |
1973年 | 7篇 |
1970年 | 8篇 |
1960年 | 6篇 |
排序方式: 共有1647条查询结果,搜索用时 484 毫秒
81.
82.
83.
Larsen GE George JD Alexander JL Fellingham GW Aldana SG Parcell AC 《Research quarterly for exercise and sport》2002,73(1):66-72
The purpose of this study was to develop a submaximal, 1.5-mile endurance test for college-aged students using walking, jogging, or running exercise. College students (N = 101: 52 men, 47 women), ages 18-26years, successfully completed the 1.5-mile test twice, and a maximal graded exercise test. Participants were instructed to achieve a "somewhat hard" exercise intensity (rating of perceived exertion = 13) and maintain a steady pace throughout each 1.5-mile test. Multiple linear regression generated the following prediction equation: VO2 max = 65.404 + 7.707 x gender (1 = male; 0 =female) - 0.159 x body mass (kg) - 0.843 x elapsed exercise time (min; walking, jogging orrunning). This equation shows acceptable validity (R = .86, SEE = 3.37 ml x kg(-1) min(-1)) similar to the accuracy of comparable field tests, and reliability (ICC = .93) is also comparable to similar models. The statistical shrinkage is minimal (R(press) = 0.85, SEE(press) = 3.51 ml x kg(-) x min(-1)); hence, it should provide comparable results when applied to other similar samples. A regression model (R =.90, and SEE = 2.87 ml x kg(-1) min(-1)) including exercise heart rate was also developed: VO2 max = 100.162 +/- 7.301 x gender(1 = male; 0 =female) - 0.164 x body mass (kg) - 1.273 x elapsed exercise time -0.156 x exercise heart rate, for those who have access to electronic heart rate monitors. This submaximal 1.5-mile test accurately predicts maximal oxygen uptake (VO2max) without measuring heart rate and is similar to the 1.5-mile run in that it allowsfor mass testing and requires only a flat, measured distance and a stopwatch. Further, it can accommodate a wide range of fitness levels (from walkers to runners). 相似文献
84.
The widespread use of handheld computers and other mobile devices in the healthcare environment and their potential for providing access to information has prompted health sciences librarians everywhere to learn more about this technology. Early in 2001, the Health Sciences Library (HSL) at the University of North Carolina at Chapel Hill began exploring ways to support mobile computing. This paper describes the four basic approaches taken by the librarians that helped establish the HSL as a leader in the area of mobile technologies. 相似文献
85.
86.
87.
88.
89.
Joel R. Levin Beverly J. Dretzke Michael Pressley Julia E. McGivern 《Contemporary educational psychology》1985,10(3):220-227
Previous research has indicated that the keyword method of vocabulary learning facilitates students' performance not just on simple tests of definition recall, but on comprehension-demanding tasks as well. The present study was conducted to determine whether the “comprehension” finding could be accounted for by keyword subjects' superior definition recall per se. The results generally supported that conclusion: When conditions and subjects within conditions were equated with respect to their initial levels of definition recall, the comprehension advantage of keyword subjects disappeared. 相似文献
90.