全文获取类型
收费全文 | 514篇 |
免费 | 15篇 |
专业分类
教育 | 354篇 |
科学研究 | 30篇 |
各国文化 | 7篇 |
体育 | 72篇 |
综合类 | 1篇 |
文化理论 | 7篇 |
信息传播 | 58篇 |
出版年
2023年 | 2篇 |
2022年 | 1篇 |
2021年 | 10篇 |
2020年 | 17篇 |
2019年 | 30篇 |
2018年 | 31篇 |
2017年 | 28篇 |
2016年 | 25篇 |
2015年 | 18篇 |
2014年 | 21篇 |
2013年 | 104篇 |
2012年 | 26篇 |
2011年 | 20篇 |
2010年 | 9篇 |
2009年 | 21篇 |
2008年 | 11篇 |
2007年 | 16篇 |
2006年 | 10篇 |
2005年 | 16篇 |
2004年 | 12篇 |
2003年 | 15篇 |
2002年 | 8篇 |
2001年 | 7篇 |
2000年 | 10篇 |
1999年 | 5篇 |
1998年 | 4篇 |
1997年 | 3篇 |
1996年 | 5篇 |
1995年 | 6篇 |
1994年 | 2篇 |
1992年 | 2篇 |
1991年 | 3篇 |
1990年 | 2篇 |
1989年 | 4篇 |
1988年 | 3篇 |
1985年 | 3篇 |
1983年 | 5篇 |
1982年 | 1篇 |
1981年 | 3篇 |
1980年 | 1篇 |
1979年 | 1篇 |
1978年 | 4篇 |
1977年 | 1篇 |
1976年 | 2篇 |
1974年 | 1篇 |
排序方式: 共有529条查询结果,搜索用时 15 毫秒
521.
The focus of this special section is on the processes involved when solving information-based problems. Solving these problems requires from people that they are able to define the information problem, search and select usable and reliable sources and information and synthesise information into a coherent body of knowledge. An important aspect throughout the whole search process is the critical evaluation of sources and information. Evaluation processes are of particular importance when searching information on the Internet, because of the masses of information, and the open publication principle of the Internet. The articles in the present special section take different perspectives in studying the evaluation processes. Influencing factors such as students' domain-specific prior knowledge, metatextual knowledge, and students' epistemic beliefs are addressed. 相似文献
522.
Marc A. Briggs Liam D. Harper Ged McNamee Emma Cockburn Penny L.S. Rumbold Emma J. Stevenson 《European Journal of Sport Science》2017,17(7):858-866
Dietary analysis of Academy soccer players highlights that total energy and carbohydrate intakes are less than optimal, especially, on match-days. As UK Academy matches predominantly kick-off at ~11:00?h, breakfast is likely the last pre-exercise meal and thus may provide an intervention opportunity on match-day. Accordingly, the physiological and performance effects of an increased calorie breakfast consumed ~135-min before soccer-specific exercise was investigated. English Premier League Academy soccer players (n?=?7) repeated a 90-min soccer match simulation on two occasions after consumption of habitual (Bhab; ~1100?kJ) or increased (Binc; ~2100?kJ) energy breakfasts standardised for macronutrient contributions (~60% carbohydrates, ~15% proteins and ~25% fats). Countermovement jump height, sprint velocities (15-m and 30-m), 30-m repeated sprint maintenance, gut fullness, abdominal discomfort and soccer dribbling performances were measured. Blood samples were taken at rest, pre-exercise, half-time and every 15-min during exercise. Although dribbling precision (P?=?.522; 29.9?±?5.5?cm) and success (P?=?.505; 94?±?8%) were unchanged throughout all time-points, mean dribbling speed was faster (4.3?±?5.7%) in Binc relative to Bhab (P?=?.023; 2.84 vs 2.75?m?s?1). Greater feelings of gut fullness (67?±?17%, P?=?.001) were observed in Binc without changes in abdominal discomfort (P?=?.595). All other physical performance measures and blood lactate and glucose concentrations were comparable between trials (all P?>?.05). Findings demonstrate that Academy soccer players were able to increase pre-match energy intake without experiencing abdominal discomfort; thus, likely contributing to the amelioration of energy deficits on match-days. Furthermore, whilst Binc produced limited benefits to physical performance, increased dribbling speed was identified, which may be of benefit to match-play. 相似文献
523.
Marc J. Rosenberg 《Performance Improvement Quarterly》1995,8(1):94-99
How close is the relationship between performance technology, performance support, and training? Very close, actually. Both performance technology and electronic performance support (EPS) have their roots in education and training, but in many ways they have transcended their be ginnings and have evolved beyond where training leaves off. This commentary offers a performance technologist's view of EPS and suggests not only that a performance technology perspective is a requirement for the development of EPS, but that involvement in building and implementing an EPS can help people shift their paradigm from training to performance. Implications for the education and training field now and in the future are also proposed. 相似文献
524.
525.
526.
527.
528.
529.