全文获取类型
收费全文 | 546篇 |
免费 | 5篇 |
专业分类
教育 | 419篇 |
科学研究 | 20篇 |
各国文化 | 6篇 |
体育 | 42篇 |
文化理论 | 4篇 |
信息传播 | 60篇 |
出版年
2021年 | 5篇 |
2020年 | 10篇 |
2019年 | 18篇 |
2018年 | 23篇 |
2017年 | 16篇 |
2016年 | 22篇 |
2015年 | 22篇 |
2014年 | 16篇 |
2013年 | 110篇 |
2012年 | 14篇 |
2011年 | 16篇 |
2010年 | 6篇 |
2009年 | 7篇 |
2008年 | 12篇 |
2007年 | 12篇 |
2006年 | 12篇 |
2005年 | 16篇 |
2004年 | 16篇 |
2003年 | 12篇 |
2002年 | 13篇 |
2001年 | 7篇 |
2000年 | 6篇 |
1999年 | 4篇 |
1998年 | 9篇 |
1997年 | 3篇 |
1996年 | 12篇 |
1995年 | 6篇 |
1994年 | 5篇 |
1993年 | 8篇 |
1990年 | 3篇 |
1989年 | 3篇 |
1988年 | 5篇 |
1987年 | 3篇 |
1986年 | 4篇 |
1985年 | 9篇 |
1984年 | 4篇 |
1982年 | 11篇 |
1981年 | 3篇 |
1980年 | 5篇 |
1979年 | 4篇 |
1978年 | 6篇 |
1977年 | 5篇 |
1976年 | 3篇 |
1974年 | 4篇 |
1973年 | 3篇 |
1972年 | 3篇 |
1970年 | 3篇 |
1968年 | 4篇 |
1940年 | 2篇 |
1835年 | 2篇 |
排序方式: 共有551条查询结果,搜索用时 8 毫秒
151.
152.
Wilson PM Rodgers WM Fraser SN Murray TC 《Research quarterly for exercise and sport》2004,75(1):81-91
The aim of this study was to examine propositions stemming from Self-Determination Theory (SDT) that contend motivational consequences vary as a function of different regulations in the exercise domain. Participants (N = 276; n = 98 men; n = 178 women) completed inventories assessing exercise regulations, current exercise behavior, and behavioral intentions to continue exercising for the next 4 months and the effort and importance associated with exercise participation. Bivariate analyses indicated autonomous exercise regulations (identified and intrinsic) were the strongest correlates of each motivational consequence across both sexes, and introjected regulation was positively associated with exercise consequences in women. Simultaneous multiple regression analyses indicated that exercise regulations accounted for a sizeable portion of the variance across each motivational consequence in both sexes (R2adj values ranged from .20 to .53). Both regression and structure coefficients revealed that introjected regulation was a stronger motivational force in women than men, and identified regulation was the most important predictor of all three motivational consequences in both sexes. Collectively, these findings suggest that exercise regulations differentially predict motivational consequences across sexes, and future research using this theoretical framework for examining motivational issues pertinent to the exercise domain appears warranted. 相似文献
153.
液体补充:美国运动医学会的见解 总被引:18,自引:0,他引:18
关键点:1.最近的科学研究强调,在进行体力活动前、中、后保持机体良好的水合状态对生理功能和运动能力具有有益作用。2.保持正常水合状态需要对运动员在整个训练日改善饮水行为作出具体努力。3.体力活动中,自愿饮水量受饮料的口味、组成成分,以及饮料使用是否方便的影响。在为运动员设计补液方案时,必须考虑这些因素。4.运动中补液量应能完全补充汗液丢失的量。其生理效益和对运动能力的有效作用已有很好的证明。5.运动后迅速完全的补液需要摄入氯化钠以补充汗液中丢失的钠盐,补液量要大于汗液丢失量。中图分类号:G804.5 文献标识码:03 … 相似文献
154.
Tara E. Murray 《图书馆管理杂志》2015,55(8):658-666
The annual conference of the Special Libraries Association (SLA) provides an opportunity to observe trends in special libraries emerging, continuing, and fading. This column analyzes the program of the SLA 2015 conference held in Boston June 14–16, 2015, and compares it to the programs of previous SLA conferences. Prior analyses and observations of SLA conferences are discussed. Emerging trends noted at the 2015 conference include data management and analysis, print collections, laboratory safety, and prospect research. Consulting, outsourcing, strategic alignment, open access, digitization, institutional repositories, and taxonomies have maintained a prominent presence at SLA conferences over the years. The column closes by calling for more research on and analysis of the content of SLA and other conferences attended by special librarians to capture trends not yet appearing in the journal literature. 相似文献
155.
Research analysing the operation of power within sport and physical activity has exposed the marginalisation and exclusion of women's sport in explicit and institutionalised ways. However, for women in recreational and alternative physical activities like surfing, sporting experiences lie outside institutionalised structures, thus requiring alternative surfing of conceptualising the processes of exclusionary power. In this paper, we focus on the voices of women recreational surfers to explore the changes which may or may not be occurring at smaller, more localised levels of women's engagement with surfing culture. An ethnographic methodology was employed to ask women how and why they engage in surfing and what it means for them, rather than asking questions based on existing assumptions. In presenting the data we draw upon the double meaning afforded by the term ‘to patronise’ as a means of framing the complex ways that women continue to be differentiated in surfing culture, and the ways they respond to this. In the final section, we employ a Foucauldian analytic lens to explore the subtle normalising practices in which women are incited to recognise and undertake the practices of the valued masculine ideal of the ‘good surfer’ through caring acts and advice offered by male surfers. This post-structuralist perspective offers space to think outside of simple resistance and reproduction, instead considering a complex space where women and men negotiate power in a range of ways from contextual, subjective positions. In conclusion, we argue that women recreational surfers are enacting alternative ways of operating within the power relations that circulate in the waves, creating ever-changing spaces for new ways of doing and knowing surfing to emerge. 相似文献
156.
Hamblin MN Hawkins AR Murray D Maynes D Lee ML Woolley AT Tolley HD 《Biomicrofluidics》2011,5(2):21103
Planar nanochannels are fabricated using sacrificial etching technology with sacrificial cores consisting of aluminum, chromium, and germanium, with heights ranging from 18 to 98 nm. Transient filling via capillary action is compared against the Washburn equation [E. W. Washburn, Phys. Rev. 17, 273 (1921)], showing experimental filling speeds significantly lower than classical continuum theory predicts. Departure from theory is expressed in terms of a varying dynamic contact angle, reaching values as high as 83° in channels with heights of 18 nm. The dynamic contact angle varies significantly from the macroscopic contact angle and increases with decreasing channel dimensions. 相似文献
157.
158.
Significant gains in conservation of number, amount, mass, and weight were made by 53 nonconservers (age 6-9) who either simply observed conserver's performance on mass and weight problems or argued with conservers in a social conflict situation about these problems. There were no significant differences in conservation performance between the modeling and social conflict treatments. It was suggested that the social conflict effect could be attributed to modeling effects. 相似文献
159.
160.