全文获取类型
收费全文 | 1042篇 |
免费 | 24篇 |
专业分类
教育 | 786篇 |
科学研究 | 43篇 |
各国文化 | 23篇 |
体育 | 75篇 |
综合类 | 1篇 |
文化理论 | 9篇 |
信息传播 | 129篇 |
出版年
2023年 | 4篇 |
2022年 | 5篇 |
2021年 | 14篇 |
2020年 | 26篇 |
2019年 | 31篇 |
2018年 | 29篇 |
2017年 | 31篇 |
2016年 | 31篇 |
2015年 | 22篇 |
2014年 | 35篇 |
2013年 | 273篇 |
2012年 | 25篇 |
2011年 | 24篇 |
2010年 | 21篇 |
2009年 | 22篇 |
2008年 | 24篇 |
2007年 | 21篇 |
2006年 | 26篇 |
2005年 | 22篇 |
2004年 | 23篇 |
2003年 | 18篇 |
2002年 | 26篇 |
2001年 | 12篇 |
1999年 | 15篇 |
1998年 | 6篇 |
1997年 | 7篇 |
1996年 | 10篇 |
1995年 | 14篇 |
1994年 | 4篇 |
1993年 | 12篇 |
1992年 | 8篇 |
1991年 | 10篇 |
1990年 | 11篇 |
1989年 | 17篇 |
1988年 | 19篇 |
1987年 | 8篇 |
1986年 | 7篇 |
1985年 | 12篇 |
1984年 | 12篇 |
1983年 | 9篇 |
1982年 | 9篇 |
1981年 | 9篇 |
1980年 | 12篇 |
1979年 | 9篇 |
1978年 | 15篇 |
1977年 | 10篇 |
1976年 | 8篇 |
1975年 | 6篇 |
1974年 | 8篇 |
1973年 | 4篇 |
排序方式: 共有1066条查询结果,搜索用时 15 毫秒
31.
32.
The objective of this study was to examine current teacher and mental health professional ratings regarding the relative seriousness of 50 specific children's behavior problems and to compare the results to those found by Wickman (1928). Wickman's questionnaire and procedures were replicated to insure comparability. A second objective was to extend Wickman's work so that children's ratings of their own behavior problems may be ascertained. An increase in the similarity between teachers' and mental health professionals' judgements concerning the seriousness of specific children's behavior problems was found. These findings were attributable to a more pragmatic approach taken by mental health professionals. A very high agreement on the seriousness of specific behavior problem ratings was demonstrated by children and teachers. This similarity may be the result of proximity of effects. 相似文献
33.
Research related to cardiorespiratory fitness often uses regression analysis in order to predict cardiorespiratory status or future outcomes. Reading these studies can be tedious and difficult unless the reader has a thorough understanding of the processes used in the analysis. This feature seeks to “simplify” the process of regression analysis for prediction in order to help readers understand this type of study more easily. Examples of the use of this statistical technique are provided in order to facilitate better understanding. 相似文献
34.
The role of upper torso and pelvis rotation in driving performance during the golf swing 总被引:3,自引:2,他引:1
While the role of the upper torso and pelvis in driving performance is anecdotally appreciated by golf instructors, their actual biomechanical role is unclear. The aims of this study were to describe upper torso and pelvis rotation and velocity during the golf swing and determine their role in ball velocity. One hundred recreational golfers underwent a biomechanical golf swing analysis using their own driver. Upper torso and pelvic rotation and velocity, and torso-pelvic separation and velocity, were measured for each swing. Ball velocity was assessed with a golf launch monitor. Group differences (groups based on ball velocity) and moderate relationships (r > or = 0.50; P < 0.001) were observed between an increase in ball velocity and the following variables: increased torso-pelvic separation at the top of the swing, maximum torso-pelvic separation, maximum upper torso rotation velocity, upper torso rotational velocity at lead arm parallel and last 40 ms before impact, maximum torso-pelvic separation velocity and torso-pelvic separation velocity at both lead arm parallel and at the last 40 ms before impact. Torso-pelvic separation contributes to greater upper torso rotation velocity and torso-pelvic separation velocity during the downswing, ultimately contributing to greater ball velocity. Golf instructors can consider increasing ball velocity by maximizing separation between the upper torso and pelvis at the top of and initiation of the downswing. 相似文献
35.
This study examined how activity type influenced heart rates and time spent in target heart rate zones of high school students participating in physical education classes. Significantly higher average heart rates existed for fitness (142 +/- 24 beats per minute [bpm]) compared to team (118 +/- 24 bpm) or individual (114 +/- 18) activities. Similar results occurred for the percentage of activity time spent within a target heart rate zone (fitness 81.7 +/- 15.9%, individual 68.4 +/- 30.5%, and team 60.6 +/- 30.5%). Boys attained higher heart rates during team activities, while female students had higher rates during individual activities indicating male and female adolescents respond differently to activity types. The highest mean heart rates were observed during fitness activities. 相似文献
36.
37.
38.
Dennis Adams 《Educational Media International》2013,50(3):158-163
Abstract The article discusses how sections of a video can best be used in the instructional process by activating the minds of students and using their reactions to viewing to produce intellectual action. It gives some suggested schemes for this activity and shows how technological forces can become energies of change. 相似文献
39.
Although research on Tier 2 interventions for early mathematics is accumulating, such efforts remain far behind those for reading, especially regarding specific features such as the ideal time to begin an intervention. The present study investigated the effectiveness of a Tier 2 intervention using a single subject multiple baseline, across-groups design with two cohorts of second graders. Because the two cohorts of students were given the intervention at different times during the second grade year, the study also documented whether the timing of the intervention affected acquisition and retention of second grade mathematics competencies. Finally, the study tracked student performance up to the first semester of the third grade year to document any sustained effects. The results show that the supplemental intervention was effective for both cohorts, but differences in performance indicate that the timing of the intervention may affect the degree of success. In addition, for some participants, the positive effects of the intervention were sustained into the third grade year. 相似文献
40.