全文获取类型
收费全文 | 731篇 |
免费 | 13篇 |
专业分类
教育 | 555篇 |
科学研究 | 49篇 |
各国文化 | 11篇 |
体育 | 79篇 |
综合类 | 1篇 |
文化理论 | 8篇 |
信息传播 | 41篇 |
出版年
2022年 | 6篇 |
2021年 | 5篇 |
2020年 | 7篇 |
2019年 | 21篇 |
2018年 | 26篇 |
2017年 | 28篇 |
2016年 | 25篇 |
2015年 | 13篇 |
2014年 | 31篇 |
2013年 | 182篇 |
2012年 | 19篇 |
2011年 | 14篇 |
2010年 | 7篇 |
2009年 | 18篇 |
2008年 | 20篇 |
2007年 | 12篇 |
2006年 | 19篇 |
2005年 | 20篇 |
2004年 | 22篇 |
2003年 | 9篇 |
2002年 | 22篇 |
2001年 | 12篇 |
2000年 | 15篇 |
1999年 | 11篇 |
1998年 | 20篇 |
1997年 | 14篇 |
1996年 | 12篇 |
1995年 | 10篇 |
1994年 | 8篇 |
1993年 | 5篇 |
1992年 | 10篇 |
1991年 | 7篇 |
1985年 | 3篇 |
1983年 | 4篇 |
1982年 | 4篇 |
1981年 | 5篇 |
1978年 | 4篇 |
1977年 | 3篇 |
1975年 | 3篇 |
1974年 | 5篇 |
1972年 | 2篇 |
1971年 | 5篇 |
1970年 | 2篇 |
1969年 | 8篇 |
1968年 | 5篇 |
1967年 | 4篇 |
1966年 | 7篇 |
1965年 | 4篇 |
1962年 | 2篇 |
1933年 | 2篇 |
排序方式: 共有744条查询结果,搜索用时 15 毫秒
1.
Gilbert SF 《CBE life sciences education》2008,7(1):12-13
Note from the Editor 相似文献
2.
Samuel W. Oxford Rob S. James Michael J. Price Carl J. Payton Michael J. Duncan 《Journal of sports sciences》2017,35(16):1658-1665
The purpose of this study was to compare arm–leg coordination and kinematics during 100 m breaststroke in 26 (8 female; 18 male) specialist breaststroke swimmers. Laps were recorded using three 50-Hz underwater cameras. Heart rate and blood lactate were measured pre- and post-swim. Arm–leg coordination was defined using coordination phases describing continuity between recovery and propulsive phases of upper and lower limbs: coordination phase 1 (time between end of leg kick and start of the arm pull phases); and coordination phase 2 (time between end of arm pull and start of leg kick phases). Duration of stroke phases, coordination phases, swim velocity, stroke length (SL), stroke rate (SR) and stroke index (SI) were analysed during the last three strokes of each lap that were unaffected by turning or finishing. Significant changes in velocity, SI and SL (P < 0.05) were found between laps. Both sexes showed significant increase (P < 0.05) in heart rate and blood lactate pre- to post-swim. Males had significantly (P < 0.01) faster swim velocities resulting from longer SLs (P = 0.016) with no difference in SR (P = 0.064). Sex differences in kinematic parameters can be explained by anthropometric differences providing males with increased propelling efficiency. 相似文献
3.
Katherine D. Veazey Morris Gilbert R. Parra Sarah R. S. Stender 《Journal of College Counseling》2011,14(1):21-33
The authors assessed the influences of several risk factors—self‐esteem, history of unwanted sexual contact (USC), depression, and sorority membership—on eating‐related and weight‐related attitudes and behaviors. Findings provide support for the roles of self‐esteem, depression, and USC on restricting attitudes. According to the authors' model, these independent variables predicted restricting attitudes that then predicted restricting behaviors. Implications for preventive interventions and the study's limitations are discussed. 相似文献
4.
5.
6.
Timothy M. McGrath Gordon Waddington Jennie M. Scarvell Nick B. Ball Rob Creer Kevin Woods 《Journal of sports sciences》2016,34(4):289-302
Lower limb dominance (or lateral preference) could potentially effect functional performance. Clinicians are often asked to make judgements as to when a patient has sufficiently “recovered” from an injury, typically using strength and dynamic performance outcome measures. The primary purpose of this study was to systematically review the literature in relation to limb dominance within active adult populations and discuss some limitations to current methods and relate this to current clinical practice. A search of MEDLINE and CINAHL and EMBASE databases and reference lists of those articles identified was performed. Eleven articles were selected for meta-analysis. There was no statistical effect of limb dominance for any of the functional tests: isokinetic quadriceps and hamstring tests, hamstring:quadriceps ratios, single-leg hop for distance, single-leg vertical jump and vertical ground reaction force following a single-leg vertical jump. Pooled symmetry values varied from 94.6% to 99.6% across the tests, above the clinically accepted benchmark of 90% used in clinical practice. Although the results of this study must be used with discretion, asymmetries in the tasks described in this analysis should be viewed as undesirable and remedied accordingly. Further research is needed to quantify asymmetries, particularly in relation to sport-specific contexts. 相似文献
7.
Robbie S. Wilson Rob S. James Gwendolyn David Ecki Hermann Oliver J. Morgan Amanda C. Niehaus 《Journal of sports sciences》2016,34(21):2074-2086
The development of a comprehensive protocol for quantifying soccer-specific skill could markedly improve both talent identification and development. Surprisingly, most protocols for talent identification in soccer still focus on the more generic athletic attributes of team sports, such as speed, strength, agility and endurance, rather than on a player’s technical skills. We used a multivariate methodology borrowed from evolutionary analyses of adaptation to develop our quantitative assessment of individual soccer-specific skill. We tested the performance of 40 individual academy-level players in eight different soccer-specific tasks across an age range of 13–18 years old. We first quantified the repeatability of each skill performance then explored the effects of age on soccer-specific skill, correlations between each of the pairs of skill tasks independent of age, and finally developed an individual metric of overall skill performance that could be easily used by coaches. All of our measured traits were highly repeatable when assessed over a short period and we found that an individual’s overall skill – as well as their performance in their best task – was strongly positively correlated with age. Most importantly, our study established a simple but comprehensive methodology for assessing skill performance in soccer players, thus allowing coaches to rapidly assess the relative abilities of their players, identify promising youths and work on eliminating skill deficits in players. 相似文献
8.
9.
Carmel McNaught Dianne Raubenheimer Margaret Keogh Rob O'Donoghue Jim Taylor 《Research in Science Education》1992,22(1):291-298
This paper describes an ongoing process of participatory curriculum development. It outlines some of the tensions which need
to be explored in science curriculum development: debates about the nature of science, of society, of school science content
and of learning theories. The process whereby action can arise from this debate is also explored. An example will be outlined
of a network of science curriculum action which has developed from the work of a range of science education projects in Natal,
South Africa.
Specializations: science curriculum development from primary to tertiary level.
Specializations: inservice primary science teacher development.
Specializations: inservice teacher development, biology education.
Specializations: environmental education, teacher development.
Specializations: environmental education, teacher development. 相似文献
10.