全文获取类型
收费全文 | 2568篇 |
免费 | 48篇 |
国内免费 | 1篇 |
专业分类
教育 | 1906篇 |
科学研究 | 137篇 |
各国文化 | 33篇 |
体育 | 218篇 |
文化理论 | 32篇 |
信息传播 | 291篇 |
出版年
2022年 | 20篇 |
2021年 | 21篇 |
2020年 | 44篇 |
2019年 | 81篇 |
2018年 | 86篇 |
2017年 | 108篇 |
2016年 | 91篇 |
2015年 | 62篇 |
2014年 | 92篇 |
2013年 | 609篇 |
2012年 | 57篇 |
2011年 | 58篇 |
2010年 | 52篇 |
2009年 | 53篇 |
2008年 | 64篇 |
2007年 | 61篇 |
2006年 | 47篇 |
2005年 | 50篇 |
2004年 | 38篇 |
2003年 | 45篇 |
2002年 | 47篇 |
2001年 | 42篇 |
2000年 | 58篇 |
1999年 | 44篇 |
1998年 | 28篇 |
1997年 | 20篇 |
1996年 | 24篇 |
1995年 | 26篇 |
1994年 | 20篇 |
1993年 | 32篇 |
1992年 | 36篇 |
1991年 | 34篇 |
1990年 | 29篇 |
1989年 | 23篇 |
1988年 | 21篇 |
1987年 | 25篇 |
1986年 | 19篇 |
1985年 | 27篇 |
1984年 | 17篇 |
1983年 | 14篇 |
1982年 | 20篇 |
1981年 | 24篇 |
1980年 | 15篇 |
1979年 | 22篇 |
1978年 | 23篇 |
1977年 | 13篇 |
1976年 | 18篇 |
1975年 | 11篇 |
1968年 | 9篇 |
1889年 | 9篇 |
排序方式: 共有2617条查询结果,搜索用时 0 毫秒
71.
72.
Evan Coventry William A. Sands Sarah L. Smith 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(1):63-75
Gymnastics vaulting relies on a specialized take‐off board for propulsion during the take‐off phase of the vault. There is little information on the vault board and its behaviour. The aim of this study was to characterize the behaviour of the vault board during handspring drill take‐offs of young male gymnasts (n = 36). The side of the top surface of the vault board and the wooden base were marked with three reflective markers, placed at the end of the vault board nearest the vault table and the centres of the two rearmost coil springs. The vault board surface was divided into two areas, rear and middle, based on marker location. The gymnasts’ groups were determined from the location of the gymnast's lateral malleolus at vault board contact. Landings with the malleolus directly above or behind the rearmost marker were considered rear landings; landings with the malleolus forward of the rearmost marker were considered middle landings. Marker movements were automatically digitized and the right malleolus was hand digitized at 120 Hz. The maximum vertical displacement, vertical deflection time, and vertical velocity at take‐off of the vault board markers did not differ statistically between board contact groups (all p > 0.05). The lateral malleolus velocity components also did not differ between board contact groups. Some low to moderately strong correlations were observed between the various marker displacements, durations and take‐off velocities. Modest correlations were obtained between board markers and right malleolus velocities. The results indicate that foot contact on the vault board, as defined here, did not result in differences in board marker behaviour or right lateral malleolus velocities. This information does not support the idea that vault board contacts at the rear of the vault board are worse than contacts near the middle of the vault board. More research is needed to ascertain the role of the vault board's vibration characteristics to whole body actions that are observed in the subsequent preflight phase. 相似文献
73.
Caroline Smith 《Educational Psychology in Practice》2001,17(4):337-345
This paper describes teachers, parents and educational psychologists working together to meet the needs of children and young people with autistic spectrum difficulties in mainstream and special schools. It examines the impact on children's social behaviour of a two-session workshop for groups of parents/carers, teachers and learning support assistants about 'Social Stories' (Gray, 1994). It highlights the contribution that Social Stories can make to the management of a wide range of social behaviours, including inappropriate sexual behaviour, unsafe behaviour and obsessional behaviour. Issues raised by the use of Social Stories and their benefits for children with autistic spectrum difficulties are considered. The paper concludes by describing the developing diversity in the use of Social Stories and invites those working in the field to contribute to the body of information about their strengths and limitations. 相似文献
74.
Sally Smith Colin Smith Ella Taylor-Smith Julia Fotheringham 《Journal of Further & Higher Education》2019,43(5):628-640
Students have expectations of their university education leading to graduate careers, with universities investing considerable resources in institution-wide initiatives designed to enhance opportunities for student work placements and work-related learning. However, there are large variations between courses and disciplines in student uptake of these opportunities, with limited evidence explaining why this might be the case. Recognising recent approaches which consider student identity in transitions, this study explored student attitudes to work-related learning across a range of subject disciplines. The first phase of the study used in-class surveys (N = 199) to focus on students’ self-identification and perceptions of employability initiatives. Follow-up interviews were conducted to further explore themes emerging in the survey data. The study found that, while some students drew on resources for identity work in their recognition of and approach to work-related learning, access was limited, and university resources were not always recognised or effective. The findings have implications for the design of effective graduate employability initiatives. 相似文献
75.
This longitudinal study of 105 economically disadvantaged children examined the relation between reading problems and internalizing behavior in 3rd- and 5th-grade assessments (8- to 12-year olds). The variable-centered results showed that reading problems predicted change in internalizing behavior in the context of child and family predictors. The person-centered results showed that children with reading problems in both grades had higher internalizing scores in 5th grade but not in 3rd grade than children with reading problems in 3rd grade or no problems. Child-reported negative emotion experiences varied similarly across grade. The results tie reading problems to emotional distress in school and support conclusions about the direction of effects and the internalization of academic difficulty for disadvantaged children. 相似文献
76.
Andrew J. Greene Michael H. Dickson Floren Colloud Richard M. Smith 《Sports biomechanics / International Society of Biomechanics in Sports》2013,12(4):302-317
The effect of anthropometric differences in shank to thigh length ratio upon timing and magnitude of joint power production during the drive phase of the rowing stroke was investigated in 14 elite male rowers. Rowers were tested on the RowPerfect ergometer which was instrumented at the handle and foot stretcher to measure force generation, and a nine segment inverse dynamics model used to calculate the rower's joint and overall power production. Rowers were divided into two groups according to relative shank thigh ratio. Time to half lumbar power generation was significantly earlier in shorter shank rowers (p = 0.028) compared to longer shank rowers, who showed no lumbar power generation during the same period of the drive phase. Rowers with a relatively shorter shank demonstrated earlier lumbar power generation during the drive phase resulting from restricted rotation of the pelvic segment requiring increased lumbar extension in these rowers. Earlier lumbar power generation and extension did not appear to directly affect performance measures of the short shank group, and so can be attributed to a technical adaptation developed to maximise rowing performance. 相似文献
77.
Georga J. Longhurst Danya M. Stone Kate Dulohery Deirdre Scully Thomas Campbell Claire F. Smith 《Anatomical sciences education》2020,13(3):301-311
The Covid-19 pandemic has driven the fastest changes to higher education across the globe, necessitated by social distancing measures preventing face-to-face teaching. This has led to an almost immediate switch to distance learning by higher education institutions. Anatomy faces some unique challenges. Intrinsically, anatomy is a three-dimensional subject that requires a sound understanding of the relationships between structures, often achieved by the study of human cadaveric material, models, and virtual resources. This study sought to identify the approaches taken in the United Kingdom and Republic of Ireland to deliver anatomical education through online means. Data were collected from 14 different universities in the United Kingdom and Republic of Ireland and compared adopting a thematic analysis approach. Once themes were generated, they were collectively brought together using a strength, weakness, opportunity, threat (SWOT) analysis. Key themes included the opportunity to develop new online resources and the chance to engage in new academic collaborations. Academics frequently mentioned the challenge that time constrains could place on the quality and effectiveness of these resources; especially as in many cases the aim of these resources was to compensate for a lack of exposure to cadaveric exposure. Comparisons of the actions taken by multiple higher education institutions reveal the ways that academics have tried to balance this demand. Discussions will facilitate decisions being made by higher education institutions regarding adapting the curriculum and assessment methods in anatomy. 相似文献
78.
Building from the concept ‘sponsors of literacy', the authors revisit three empirical studies to argue for mobilising notions of sponsorship beyond fixed conceptions of individual sponsors and literacy to lifewide perspectives that take into account sponsoring relations across the broader learning lives of youth. The authors take up the theoretical heuristic ‘sponsorscapes' as a lens for attending to the dynamically networked, reciprocal and human‐material dimensions of literacy practices. With cases drawn from across settings and research foci, including middle school students in a classroom setting, high school‐aged youth across contexts and a participant‐researcher's interactions with a college student, the authors argue that attending to sponsorscapes can contribute critical insight into the emergent, diverse and valued literacies and sponsorship thriving across lifewide learning pathways, while recognising learners' agentive roles in investing, resisting and sponsoring literacies. 相似文献
79.
Gerald F. Smith 《Interchange》2001,32(4):349-374
Due to its strong focus on reasoning and argumentation, critical thinking lacks the breadth required of a comprehensive account of higher order thinking. In particular, critical thinking does not promote reflection on the underlying problems or situations that people think about. This paper reviews various proposed additions to and reorientations of the critical thinking paradigm. It presents a conceptual framework that encompasses the most promising extensions as topics in a broadened account of higher order thinking. This account can be understood as an elaboration of problem solving along two dimensions: Problem types, which are generic thinking situations; and problem solving functions, which are generic thinking tasks. The proposed topic-level account of higher order thinking offers a greatly enlarged view of what should be taught in general thinking skills programs. 相似文献
80.
Foundational issues in evolution education 总被引:1,自引:0,他引:1
There is a great need for effective evolution education. This paper reviews some of the evidence that demonstrates that need and analyzes some of the foundational semantic, epistemological, and philosophical issues involved. This analysis is used to provide a functional understanding of the distinction between science and non-science. Special emphasis is placed the scientific meaning of the terms theory, hypothesis, fact, proof, evidence, and truth, focusing on the difference between religious belief and acceptance of a scientific theory. Science is viewed as theologically neutral and as not mutually exclusive from religion. Finally, a number of practical recommendations to the classroom biology teacher are presented. 相似文献