全文获取类型
收费全文 | 812篇 |
免费 | 4篇 |
专业分类
教育 | 617篇 |
科学研究 | 29篇 |
各国文化 | 10篇 |
体育 | 62篇 |
文化理论 | 11篇 |
信息传播 | 87篇 |
出版年
2022年 | 7篇 |
2021年 | 10篇 |
2020年 | 12篇 |
2019年 | 21篇 |
2018年 | 29篇 |
2017年 | 21篇 |
2016年 | 15篇 |
2015年 | 13篇 |
2014年 | 14篇 |
2013年 | 214篇 |
2012年 | 22篇 |
2011年 | 17篇 |
2010年 | 14篇 |
2009年 | 9篇 |
2008年 | 20篇 |
2007年 | 21篇 |
2006年 | 17篇 |
2005年 | 17篇 |
2004年 | 8篇 |
2003年 | 19篇 |
2002年 | 10篇 |
2001年 | 8篇 |
2000年 | 5篇 |
1999年 | 8篇 |
1998年 | 5篇 |
1997年 | 7篇 |
1996年 | 15篇 |
1995年 | 15篇 |
1994年 | 12篇 |
1993年 | 8篇 |
1991年 | 7篇 |
1989年 | 8篇 |
1988年 | 4篇 |
1987年 | 5篇 |
1986年 | 5篇 |
1985年 | 13篇 |
1984年 | 8篇 |
1983年 | 13篇 |
1982年 | 5篇 |
1981年 | 16篇 |
1980年 | 9篇 |
1979年 | 12篇 |
1978年 | 6篇 |
1977年 | 10篇 |
1976年 | 7篇 |
1975年 | 9篇 |
1974年 | 7篇 |
1973年 | 13篇 |
1972年 | 7篇 |
1968年 | 6篇 |
排序方式: 共有816条查询结果,搜索用时 15 毫秒
1.
2.
Gerald W. Bracey 《Educational Measurement》1992,11(4):5-6
Do students today know less than their parents or grandparents did as students? Are they being academically outclassed by students of other nations? Or have ideologically driven policy makers painted an unnecessarily negative picture of student achievement? 相似文献
3.
4.
5.
6.
Eric C. Haakonssen Martin Barras Louise M. Burke David G. Jenkins David T. Martin 《European Journal of Sport Science》2016,16(6):645-653
The aims of this study were to describe normative values and seasonal variation of body composition in female cyclists comparing female road and track endurance cyclists, and to validate the use of anthropometry to monitor lean mass changes. Anthropometric profiles (seven site skinfolds) were measured over 16 years from 126 female cyclists. Lean mass index (LMI) was calculated as body weight?×?skinfolds?x. The exponent (x) was calculated as the slope of the natural logarithm of body weight and skinfolds. Percentage changes in LMI were compared to lean mass changes measured using dual-energy X-ray absorptiometry (DXA) in a subset of 25 road cyclists. Compared to sub-elite and elite cyclists, world class cyclists were (mean [95% CI]) 1.18?kg [0.46, 1.90] and 0.60?kg [0.05, 1.15] lighter and had skinfolds that were 7.4?mm [3.8, 11.0] and 4.6?mm [1.8, 7.4] lower, respectively. Body weight (0.41?kg [0.04, 0.77]) and skinfolds (4.0?mm [2.1, 6.0]) were higher in the off-season compared to the early-season. World class female road cyclists had lower body weight (6.04?kg [2.73, 9.35]) and skinfolds (11.5?mm [1.1, 21.9]) than track endurance cyclists. LMI (mean exponent 0.15 [0.13, 0.18]) explained 87% of the variance in DXA lean mass. In conclusion, higher performing female cyclists were lighter and leaner than their less successful peers, road cyclists were lighter and leaner than track endurance cyclists, and weight and skinfolds were lowest early in the season. LMI appears to be a reasonably valid tool for monitoring lean mass changes. 相似文献
7.
Gerald R. Elsworth 《Higher Education》1994,27(2):163-190
Scholarly productivity and the research reputation of academic staff frequently dominate as criteria in the review of higher education courses, disciplines and institutions, a bias which represents a profound hazard for plausible evaluation. Three distinct outcome constructs were identified from analyses of performance indicator data gathered on the accounting discipline in Australia. They were the scholarly productivity of the academic staff involved, the quality of teaching and learning as perceived by students and graduates, and the academic efficiency, in terms of subject completion rates, with which the courses were conducted. Each outcome was shown to be related in a different manner to various characteristics of the courses investigated. The results challenge the orthodox view that scholarly productivity will lead naturally to other desired outcomes of higher education, question the usual surface level interpretation of performance indicators, and suggest that evaluation in higher education might combine connoisseur and performance indicator approaches within the framework of a realist epistemology, placing emphasis on the structures and mechanisms which generate the diverse and distinct outcomes of different courses. 相似文献
8.
The twenty-first century has seen unprecedented investment from governments around the world in educational technologies in schools. This paper investigates Australian teachers’ adoption and use of a popular technology that has been extensively supported by governments and school systems: the interactive whiteboard (IWB). The study suggests that a number of the barriers identified in the early days of adoption and use of this technology, such as professional support and access, still remain for many teachers, thereby impeding effective practices. The research also found that primary school teachers were using the technology in diverse ways, in contrast to secondary teachers who were using the IWB mainly for instructionist, presentational purposes. We conclude by considering various ways of reducing the effect of the identified barriers to support implementation of educational technologies in the classroom, especially the next generation of technologies promoted by governments and systems. 相似文献
9.
The Urban Review - This article explores a 9-month process of youth research capacity-building, beginning with the training of high school and college aged researchers in qualitative methodologies... 相似文献
10.
Solving Bernstein's Problem: A Proposal for the Development of Coordinated Movement by Selection 总被引:6,自引:0,他引:6
In recent years, many established concepts in the theory of human motor development have undergone profound change, and our knowledge has increased greatly. Nevertheless, some outstanding problems remain unsolved. A central problem concerns the redundancy of effective movements, first pointed out by N. A. Bernstein. The human motor system is mechanically complex and can make use of large number of degrees of freedom. The controlled operation of such a system requires a reduction of mechanical redundancy, effectively by reducing the number of degrees of freedom. More recent work has shown that this problem is hard to solve explicitly by computing solutions to the equations of motion of the system. Equally challenging to traditional computational approaches is the fact the motor systems show remarkable adaptability and flexibility in the presence of changing biomechanical properties of motor organs during development and when faced with different environmental conditions or tasks. Solutions to these problems would have a large impact on a variety of issues in child development. In this article, we stress the importance of the somatic selection of neuronal groups in maps for the progressive transformation of a primary movement repertoire into a set of motor synergies and adaptive action patterns. We present results from computer simulations of a simple motor system that works according to such selectional principles. This approach suggests a provisional solution to Bernstein's problem and provides new parameters to guide experimental approaches to the development of sensorimotor coordination. 相似文献