全文获取类型
收费全文 | 1650篇 |
免费 | 30篇 |
国内免费 | 3篇 |
专业分类
教育 | 1240篇 |
科学研究 | 82篇 |
各国文化 | 20篇 |
体育 | 156篇 |
文化理论 | 13篇 |
信息传播 | 172篇 |
出版年
2022年 | 11篇 |
2021年 | 17篇 |
2020年 | 41篇 |
2019年 | 54篇 |
2018年 | 66篇 |
2017年 | 96篇 |
2016年 | 71篇 |
2015年 | 58篇 |
2014年 | 49篇 |
2013年 | 382篇 |
2012年 | 49篇 |
2011年 | 52篇 |
2010年 | 35篇 |
2009年 | 45篇 |
2008年 | 46篇 |
2007年 | 45篇 |
2006年 | 34篇 |
2005年 | 29篇 |
2004年 | 30篇 |
2003年 | 16篇 |
2002年 | 34篇 |
2001年 | 22篇 |
2000年 | 26篇 |
1999年 | 15篇 |
1998年 | 18篇 |
1997年 | 21篇 |
1996年 | 25篇 |
1995年 | 23篇 |
1994年 | 27篇 |
1993年 | 17篇 |
1992年 | 12篇 |
1991年 | 6篇 |
1990年 | 16篇 |
1989年 | 14篇 |
1988年 | 10篇 |
1987年 | 8篇 |
1986年 | 12篇 |
1985年 | 8篇 |
1984年 | 13篇 |
1983年 | 12篇 |
1982年 | 9篇 |
1981年 | 10篇 |
1980年 | 11篇 |
1979年 | 9篇 |
1978年 | 13篇 |
1977年 | 6篇 |
1976年 | 8篇 |
1975年 | 8篇 |
1974年 | 6篇 |
1965年 | 5篇 |
排序方式: 共有1683条查询结果,搜索用时 15 毫秒
41.
Brian C. Johnson 《Performance Improvement》2015,54(6):13-19
In an increasingly global and interconnected world, it is necessary for corporations and educational systems to develop mechanisms for community members to enhance multicultural competencies related to diversity including race, ethnicity, gender and gender identity, sexual orientation, age, religion, and the like. Some people internalize anger, fear, contempt, and guilt about these issues. As a result, people express their feelings in unhealthy and unproductive ways in school and in the workplace. The solution often is to provide diversity training or sensitivity training. This case study analysis utilizes Kaufman's systemic thinking model to examine what went wrong when one university attempted to implement a yearlong intensive diversity training program that brought national media attention and a potential lawsuit against the university, ultimately resulting in a dramatic shift in the university's out‐of‐classroom experiential learning policies. 相似文献
42.
The usefulness of a particular standardized achievement test with a specific population may be determined largely on the basis of experience. Sixty-six behaviourally disturbed students were administered portions of a test battery including the Reading Recognition subtest of the Peabody Individual Achievement Test (PIAT), PIAT Reading Comprehension, the Reading subtest of the Wide Range Achievement Test (WRAT), and Stanford Diagnostic Reading Test (SDRT); PIAT Mathematics, WRAT Arithmetic, Stanford Diagnostic Mathematics Test (SDMT), and KeyMath Diagnostic Arithmetic Test. Toward the end of the academic year, teachers estimated students' grade levels in reading and mathematics. Results indicated that, in mathematics, the SDMT and the PIAT predicted teachers' ratings equally well and better than the other tests; in reading, all tests predicted teachers' ratings equally well except for the PIAT Reading Comprehension, which performed less well than others. Explanations for these results are offered, together with suggestions for identifying achievement tests suitable to specific populations. 相似文献
43.
44.
Jian-Yu Jiao Lan Liu Zheng-Shuang Hua Bao-Zhu Fang En-Min Zhou Nimaichand Salam Brian P Hedlund Wen-Jun Li 《国家科学评论(英文版)》2021,8(3):7-11
Microbes are the most abundant and diverse cellular life forms on Earth and colonize a wide range of environmental niches.However,more than 99%of bac-terial and... 相似文献
45.
46.
The control of human limb movement has been the focus of research for more than a century. A major issue to emerge from this work is the manner in which the central nervous system regulates electromyographic (EMG) activity to produce movements that differ in distance, velocity, and movement time. However the different methods of analysis often used to analyze EMG data could result in different kinematic-EMG relationships. In this study, participants performed an elbow flexion task to one of five distance goals (between 5 degrees and 50 degrees) using three movement speeds. EMG data from the right elbow flexors were compared using a trial-by-trial analysis and one based on averaged data. Averaging across trials underestimated biceps EMG amplitude at all movement distances and speeds compared to a trial-by-trial analysis. Averaging overestimated EMG burst duration compared to the trial-by-trial analysis. Peak agonist EMG amplitude was positively related to distance and inversely related to movement time. Agonist EMG duration was constant for movement distances less than 30 degrees but increased in the 50 degrees condition. The results support the view that peak EMG amplitude and duration can be controlled independently, but EMG duration changes only for longer distance movements when additional force is required. 相似文献
47.
Although many professions practice some type of formal peer review, similar support for increasing the quality and efficiency of instructional design products is largely informal. Most designers develop solutions in professional eommunilies-of-practice, but formal design methodologies ordained by many corporations and instructional design schools do not account for the strong influence these communities have on design decisions. This paper describes an instructional design review process that is modeled after a widely accepted practice among software developers in which peers offer feedback through “structured walkthroughs.” The instructional design review helps the practitioner develop stronger designs more quickly. provides a means to scaffold the novice designer in the vagaries of the workplace, and improves organizational memory. An artifact of a design review as well as guidelines and success factors are presented. The paper provides a summary of a formal peer review structure that has been developed and tested over the past three years at a major corporation. 相似文献
48.
本文运用固定效应模型,分析近十年美国公立世界一流大学的经费支出数据。研究发现:美国一流公立大学中教学科研经费是主要支出;经费总支出与一流大学的排名没有显著相关性,但部分经费支出对大学排名有显著影响。对于无医院服务支出的高校,公共服务支出与大学排名显著正相关;对于有医院服务支出的高校,辅助经营支出的增加有助于大学排名的提升,公共服务支出的影响却相反。因此,提高经费使用效率比增加总额更为重要。我国“双一流”建设高校应该革新经费支出配置理念,建立科学有效的经费配置体系,增大学校各类服务支出。 相似文献
49.
Georgina L. Kent Brian Dawson Lars R. McNaughton Gregory R. Cox Louise M. Burke Peter Peeling 《Journal of sports sciences》2019,37(3):339-346
This investigation assessed the effect of dietary nitrate (NO3?) supplementation, in the form of beetroot juice (BR), on repeat-sprint performance in normoxia and normobaric hypoxia. 12 male team-sport athletes (age 22.3 ± 2.6 y, VO2peak 53.1 ± 8.7 mL.kg?1.min?1) completed three exercise trials involving a 10 min submaximal warm-up and 4 sets of cycling repeat-sprint efforts (RSE; 9 × 4 s) at sea level (CON), or at 3000 m simulated altitude following acute supplementation (140 mL) with BR (HYPBR; 13 mmol NO3?) or NO3–depleted BR placebo (HYPPLA). Peak (PPO) and mean (MPO) power output, plus work decrement were recorded during the RSE task, while oxygen consumption (VO2) was measured during the warm-up. There were no significant differences observed between HYPBR and HYPPLA for PPO or MPO; however, work decrement was reduced in the first RSE set in HYPBR compared with HYPPLA. There was a moderate effect for VO2 to be lower following BR at the end of the 10 min warm-up (ES = 0.50 ± 0.51). Dietary NO3? may not improve repeat-sprint performance in hypoxia but may reduce VO2 during submaximal exercise. Therefore, BR supplementation may be more effective for performance improvement during predominantly aerobic exercise. 相似文献
50.
Maddison J. Jones Brian Dawson Daniel F. Gucciardi Peter R. Eastwood Joanna Miller Shona L. Halson 《Journal of sports sciences》2019,37(8):864-870
The present study aimed to investigate pre-sleep behaviours (including evening electronic device use) and sleep quantity in well-trained athletes. Seventy well-trained athletes (44 females, 26 males) aged 21 ± 4 y from a range of team and individual sports were asked to complete an online sleep diary for 7 days. The sleep diary included questions about pre-sleep behaviours (e.g. napping, caffeine intake), electronic device use in the 2 h prior to bedtime (e.g. type of device and duration of use) and sleep (e.g. time in bed, sleep onset latency). On average, athletes spent 8:20 ± 1:21 h in bed each night. Associations between age, time in bed and sleepiness suggested that younger athletes spent more time in bed (B = -0.05, p = 0.001) but felt sleepier (r = -0.32, p < 0.01) than older athletes. On average, athletes mostly used electronic devices for 0–30 min prior to sleep. The use of multiple devices in the evening was associated with more perceived difficulty in falling asleep (B = 0.22, p = 0.03), but no associations existed with other sleep variables. In summary, younger athletes may require later start times or improved sleep quality to resolve excessive sleepiness. 相似文献