全文获取类型
收费全文 | 2920篇 |
免费 | 48篇 |
国内免费 | 1篇 |
专业分类
教育 | 2202篇 |
科学研究 | 151篇 |
各国文化 | 38篇 |
体育 | 232篇 |
文化理论 | 39篇 |
信息传播 | 307篇 |
出版年
2022年 | 31篇 |
2021年 | 30篇 |
2020年 | 54篇 |
2019年 | 97篇 |
2018年 | 100篇 |
2017年 | 113篇 |
2016年 | 106篇 |
2015年 | 66篇 |
2014年 | 105篇 |
2013年 | 683篇 |
2012年 | 76篇 |
2011年 | 74篇 |
2010年 | 63篇 |
2009年 | 60篇 |
2008年 | 78篇 |
2007年 | 65篇 |
2006年 | 55篇 |
2005年 | 61篇 |
2004年 | 45篇 |
2003年 | 54篇 |
2002年 | 58篇 |
2001年 | 51篇 |
2000年 | 70篇 |
1999年 | 51篇 |
1998年 | 37篇 |
1997年 | 22篇 |
1996年 | 29篇 |
1995年 | 34篇 |
1994年 | 22篇 |
1993年 | 34篇 |
1992年 | 42篇 |
1991年 | 36篇 |
1990年 | 31篇 |
1989年 | 23篇 |
1988年 | 21篇 |
1987年 | 27篇 |
1986年 | 19篇 |
1985年 | 28篇 |
1984年 | 17篇 |
1983年 | 14篇 |
1982年 | 19篇 |
1981年 | 24篇 |
1980年 | 15篇 |
1979年 | 22篇 |
1978年 | 22篇 |
1977年 | 12篇 |
1976年 | 17篇 |
1975年 | 10篇 |
1968年 | 9篇 |
1889年 | 9篇 |
排序方式: 共有2969条查询结果,搜索用时 31 毫秒
31.
32.
Hugo Sarmento Paul Bradley M. Teresa Anguera Tiago Polido Rui Resende Jorge Campaniço 《Journal of sports sciences》2016,34(7):621-629
The aim of this study was to quantify the type of offensive sequences that result in goals in elite futsal. Thirty competitive games in the Spanish Primera Division de Sala were analysed using computerised notation analysis for patterns of play that resulted in goals. More goals were scored in positional attack (42%) and from set pieces (27%) compared to other activities. The number of defence to offense “transitions” (n = 45) and the start of offensive plays due to the rules of the game (n = 45) were the most common type of sequences that resulted in goals compared to other patterns of play. The central offensive zonal areas were the most common for shots on goal, with 73% of all goals scored from these areas of the pitch compared to defensive and wide zones. The foot was the main part of the body involved in scoring (n = 114). T-pattern analysis of offensive sequences revealed regular patterns of play, which are common in goal scoring opportunities in futsal and are typical movement patterns in this sport. The data demonstrate common offensive sequences and movement patterns related to goals in elite futsal and this could provide important information for the development of physical and technical training drills that replicate important game situations. 相似文献
33.
Jordan J. Smith Philip J. Morgan Ronald C. Plotnikoff David F. Stodden David R. Lubans 《Journal of sports sciences》2016,34(8):772-779
The purpose of this study was to examine the mediating effect of resistance training skill competency on percentage of body fat, muscular fitness and physical activity among a sample of adolescent boys participating in a school-based obesity prevention intervention. Participants were 361 adolescent boys taking part in the Active Teen Leaders Avoiding Screen-time (ATLAS) cluster randomised controlled trial: a school-based program targeting the health behaviours of economically disadvantaged adolescent males considered “at-risk” of obesity. Body fat percentage (bioelectrical impedance), muscular fitness (hand grip dynamometry and push-ups), physical activity (accelerometry) and resistance training skill competency were assessed at baseline and post-intervention (i.e., 8 months). Three separate multi-level mediation models were analysed to investigate the potential mediating effects of resistance training skill competency on each of the study outcomes using a product-of-coefficients test. Analyses followed the intention-to-treat principle. The intervention had a significant impact on the resistance training skill competency of the boys, and improvements in skill competency significantly mediated the effect of the intervention on percentage of body fat and the combined muscular fitness score. No significant mediated effects were found for physical activity. Improving resistance training skill competency may be an effective strategy for achieving improvements in body composition and muscular fitness in adolescent boys. 相似文献
34.
35.
36.
ABSTRACTBlended learning has been a feature of higher education practice and research for almost two decades. This article takes stock of current blended learning research, contributing to the growing number of meta-analyses of higher education and blended learning research more generally, through a review of ninety-seven articles relating to blended learning in higher education published in fifteen journals between 2012 and mid-2017. The review focused on where and when the articles were published; their provenance, scale, scope; methodological approach; the broad research themes; and definition of blended learning used. The review shows that despite its ubiquity, blended learning’s definition is all-encompassing; its spread is global but research is dominated by key players; it is of technical interest; and its research is small-scale, individually focused, seeking to evidence the benefits of blended learning. The article concludes with recommendations of how higher education research could provide institutions with evidence to ensure their ‘best of blends’. 相似文献
37.
Sandra Smith 《Annals of dyslexia》1992,42(1):141-158
Extended families of 12 young adults (9 LD, 3 non-LD) were given a battery of tests and questionnaires, and 131 persons, ranging
in age from 6 to 85, were classified as LD or non-LD on the basis of subtest scores 1 SD below the mean or less on subtests
of the PIAT and WRAT achievement tests. Pedigree analysis indicated that LD was strongly familial, with the most probable
mode involving a major gene effect, but the type of disability (reading/ math) was not directly inherited. Autoimmune disorders
were significantly correlated (P<.005) with LD, especially in families in which LD remained a major handicap into adulthood,
a trait that also varied between families. In two of the LD families, adults showed little evidence of the reading/spelling
deficits they had shown when tested as children, while adults in other families failed to make gains in reading and spelling. 相似文献
38.
Carol A. Smith Rodney Parks Jesse Parrish Ryan Swirski 《Journal of Adventure Education & Outdoor Learning》2018,18(1):1-14
Technology plays an integral role in the lives of the majority of the US population. As technology becomes integrated into young people’s lives, questions arise regarding its effects on learning. This exploratory study draws on interviews with students who attend university in the United States to determine how separating students from technology deepens experiential learning. Participants were interviewed following a study abroad course to New Zealand, during which they were disconnected from technologies such as cell phones, the Internet and social media. In the interviews, students discussed their feelings of being disconnected and describe how disconnecting impacted their overall experience. Participants agreed that disconnecting from technology had positive effects on experiential learning and the global experience. Major themes that emerged include students’ enhanced immersion and engagement, the value of disconnection in providing opportunities for personal growth and the difficulty of initial separation from technology as a result of conditioning. 相似文献
39.
Kim M. Tsai Ronald E. Dahl Michael R. Irwin Julienne E. Bower Heather McCreath Teresa E. Seeman David M. Almeida Andrew J. Fuligni 《Child development》2018,89(5):1577-1588
The current study examines the association between parental support and adolescent sleep under varying levels of family stress. Participants included 316 adolescents (Mage = 16.40 years, 43% male) and their parents (Mage = 45.67 years, 91% mothers) from diverse ethnic backgrounds. Both adolescents and parents completed questionnaires and adolescents wore wrist actigraphs and completed self‐reports on their sleep for 7 consecutive days. Results indicated that under contexts of family stress, more parental support was linked to longer sleep duration, less sleep variability, and less time spent awake during the night. Findings suggest that under contexts of family stress, cohesive family relationships may provide a sense of stability and security that is necessary for healthful sleep. 相似文献
40.
Elizabeth Overman Smith 《Technical Communication Quarterly》1996,5(4):365-383
Electronic databases provide access to resources in business, communication, education, applied science and technology, and the social sciences. This article identifies the databases that monitor the journals most frequently cited by technical and professional communication researchers. 相似文献