全文获取类型
收费全文 | 618篇 |
免费 | 14篇 |
国内免费 | 3篇 |
专业分类
教育 | 461篇 |
科学研究 | 35篇 |
各国文化 | 7篇 |
体育 | 61篇 |
文化理论 | 4篇 |
信息传播 | 67篇 |
出版年
2023年 | 6篇 |
2022年 | 4篇 |
2021年 | 20篇 |
2020年 | 14篇 |
2019年 | 21篇 |
2018年 | 35篇 |
2017年 | 23篇 |
2016年 | 26篇 |
2015年 | 21篇 |
2014年 | 17篇 |
2013年 | 155篇 |
2012年 | 24篇 |
2011年 | 21篇 |
2010年 | 15篇 |
2009年 | 8篇 |
2008年 | 16篇 |
2007年 | 17篇 |
2006年 | 17篇 |
2005年 | 8篇 |
2004年 | 12篇 |
2003年 | 18篇 |
2002年 | 10篇 |
2001年 | 8篇 |
2000年 | 10篇 |
1999年 | 11篇 |
1998年 | 4篇 |
1997年 | 3篇 |
1996年 | 11篇 |
1995年 | 4篇 |
1994年 | 3篇 |
1993年 | 2篇 |
1992年 | 5篇 |
1991年 | 7篇 |
1989年 | 4篇 |
1988年 | 5篇 |
1984年 | 2篇 |
1983年 | 4篇 |
1982年 | 4篇 |
1981年 | 2篇 |
1980年 | 5篇 |
1979年 | 5篇 |
1978年 | 2篇 |
1977年 | 4篇 |
1976年 | 2篇 |
1975年 | 2篇 |
1973年 | 4篇 |
1972年 | 2篇 |
1969年 | 2篇 |
1967年 | 2篇 |
1830年 | 1篇 |
排序方式: 共有635条查询结果,搜索用时 15 毫秒
1.
Sam Winter 《British Journal of Special Education》1991,18(1):20-24
Sam Winter, formerly an educational psychologist working in Hartlepool, is now lecturer in the Department of Education, Hong Kong University. He is currently conducting an inquire into paired reading as a method of helping children who experience difficulties in learning to read. 相似文献
2.
基于域加权词频法的XML文档级检索实现与评价 总被引:1,自引:0,他引:1
利用BM25F模型,通过实验,在INEX 04数据集的基础上,实现了对多个域(元素)词频进行加权的XML文档级检索。XML文档结构的确蕴含了一定的语义信息。利用这些语义信息,可以提高检索性能。表2。图1。参考文献16。 相似文献
3.
Karla K. McGregor Natalie Langenfeld Sam Van Horne Jacob Oleson Matthew Anson Wayne Jacobson 《Learning disabilities research & practice》2016,31(2):90-102
To explore the university experiences of students with learning disabilities (LD), 63,802 responses to the 2014 Student Experience in the Research University Survey were analyzed. Compared to other students, those with self‐reported LD (5.96 percent) had difficulty with assignments and had more obstacles caused by nonacademic responsibilities and imposed by their skill levels. Students with self‐reported LD sensed more bias toward people with disabilities on campus, and they were less satisfied with their overall experience. Interactions between disability status and age suggested even more challenges for older students who self‐reported LD. Approximately one‐third of students who self‐reported LD received accommodations. The rate of accommodations was higher among individuals who were wealthy, who lived alone, and who were out‐of‐state students. Compared to students who self‐reported LD but reported no accommodations, those with accommodations had more contact with faculty and less difficulty with assignments. 相似文献
4.
5.
Andrew Post J. Michio Clark D. G. E. Robertson T. Blaine Hoshizaki Michael D. Gilchrist 《Sports Engineering》2017,20(2):111-119
Brain injury research in sport employs a variety of physical models equipped with accelerometers. These acceleration signals are commonly processed using filters. The purpose of this research was to determine the effect of applying filters with different cutoff frequencies to the acceleration signals used as input for finite element modeling of the brain. Signals were generated from reconstructions of concussion events from American football and ice hockey in the laboratory using a Hybrid III headform. The resulting acceleration signals were used as input for the University College Dublin Brain Trauma Model after being processed with filters. The results indicated that using a filter with a cutoff of 300 Hz or higher had little effect on the resulting strain measures. In some cases there was some effect of the filters on the peak linear (8–30g) and rotational measures (1000–4000 rad/s2), but little effect on the finite element strain result (approximately 2–6 %). The short duration and high magnitude accelerations, such as the puck impact, were most affected by the cutoff frequency of different filters. 相似文献
6.
7.
Carl T. Woods James P. Veale Neil Collier Sam Robertson 《Journal of sports sciences》2017,35(4):325-330
This study investigated the extent to which position in the Australian Football League (AFL) national draft is associated with individual game performance metrics. Physical/technical skill performance metrics were collated from all participants in the 2014 national under 18 (U18) championships (18 games) drafted into the AFL (n = 65; 17.8 ± 0.5 y); 232 observations. Players were subdivided into draft position (ranked 1–65) and then draft round (1–4). Here, earlier draft selection (i.e., closer to 1) reflects a more desirable player. Microtechnology and a commercial provider facilitated the quantification of individual game performance metrics (n = 16). Linear mixed models were fitted to data, modelling the extent to which draft position was associated with these metrics. Draft position in the first/second round was negatively associated with “contested possessions” and “contested marks”, respectively. Physical performance metrics were positively associated with draft position in these rounds. Correlations weakened for the third/fourth rounds. Contested possessions/marks were associated with an earlier draft selection. Physical performance metrics were associated with a later draft selection. Recruiters change the type of U18 player they draft as the selection pool reduces. juniors with contested skill appear prioritised. 相似文献
8.
Kosal Sam 《International journal of qualitative studies in education》2013,26(6):714-729
Educational institutions, like most social service organizations, need to recognize intersectionality and complexity and move away from monolithic conceptions of homelessness – if they recognize homelessness at all. This first person account of a gay, Cambodian refugee illustrates the enormous complexity schools face in forming institutional responses for the needs of homeless, highly mobile, and economically displaced children and youth. This article demonstrates an effort to avoid reductionist definitions of homelessness and to include experiential representations of humans living at the margins (under the 5th Avenues of the world, in central parks, in downtown shelters, outside of the ethical and systemic “home” of current ideologies and social orders, under the politics of HIV in Africa, as refugees and as those “othered” by dominant social narratives). The research takes place in the context of the At Home At School program at Washington State University. 相似文献
9.
The relationships between team performance indicators and match outcome have been examined in many team sports, however are limited in Australian Rules football. Using data from the 2013 and 2014 Australian Football League (AFL) regular seasons, this study assessed the ability of commonly reported discrete team performance indicators presented in their relative form (standardised against their opposition for a given match) to explain match outcome (Win/Loss). Logistic regression and decision tree (chi-squared automatic interaction detection (CHAID)) analyses both revealed relative differences between opposing teams for “kicks” and “goal conversion” as the most influential in explaining match outcome, with two models achieving 88.3% and 89.8% classification accuracies, respectively. Models incorporating a smaller performance indicator set displayed a slightly reduced ability to explain match outcome (81.0% and 81.5% for logistic regression and CHAID, respectively). However, both were fit to 2014 data with reduced error in comparison to the full models. Despite performance similarities across the two analysis approaches, the CHAID model revealed multiple winning performance indicator profiles, thereby increasing its comparative feasibility for use in the field. Coaches and analysts may find these results useful in informing strategy and game plan development in Australian Rules football, with the development of team-specific models recommended in future. 相似文献
10.
David S. Haydon Ross A. Pinder Paul N. Grimshaw William S. P. Robertson 《Sports Engineering》2016,19(3):177-184
Limited recommendations of wheelchair configurations for court sports have been identified in the published literature. To accommodate the wide range of impairments in wheelchair rugby, players are given a point score that reflects their impairment. Players have regularly been grouped as high-, mid-, or low-point players in research, with high-point players having greater levels of muscle function compared with other classifications. This research documented the wheelchair configurations of elite Australian wheelchair rugby players across classification groups. Significant differences (p < 0.05) were found for increased seat height and decreased seat depth for high-point players compared with low- and mid-point groups, respectively. Low-point players displayed reduced wheelchair mass compared with high- and mid-point players, as well as increased frame length. Camber angles showed no significant differences across the classification groups. The incorporation of anthropometric measures, such as the elbow angle at the top dead center, was also investigated. While elbow angle showed no significant differences, seat height-to-total arm length ratio was higher for high-point players. Participants also completed surveys detailing their perception of the effect of altering wheelchair configurations. It is suggested that wheelchair configurations should consider an individual’s anthropometrics, impairment, training history, and court role to promote optimal performance, with predictive modeling having the potential to reduce the associated time and cost. 相似文献