首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   307篇
  免费   7篇
教育   204篇
科学研究   9篇
各国文化   1篇
体育   73篇
文化理论   3篇
信息传播   24篇
  2022年   3篇
  2021年   3篇
  2020年   15篇
  2019年   15篇
  2018年   17篇
  2017年   16篇
  2016年   10篇
  2015年   4篇
  2014年   5篇
  2013年   66篇
  2012年   11篇
  2011年   15篇
  2010年   6篇
  2009年   8篇
  2008年   3篇
  2007年   10篇
  2006年   7篇
  2005年   6篇
  2003年   4篇
  2001年   6篇
  2000年   5篇
  1999年   3篇
  1997年   5篇
  1996年   3篇
  1995年   3篇
  1994年   2篇
  1993年   4篇
  1992年   3篇
  1987年   3篇
  1986年   1篇
  1985年   3篇
  1984年   2篇
  1983年   1篇
  1982年   2篇
  1981年   4篇
  1980年   2篇
  1979年   3篇
  1978年   1篇
  1977年   1篇
  1976年   2篇
  1975年   6篇
  1974年   7篇
  1973年   3篇
  1972年   3篇
  1967年   2篇
  1966年   2篇
  1931年   1篇
  1922年   1篇
  1921年   1篇
  1920年   3篇
排序方式: 共有314条查询结果,搜索用时 15 毫秒
311.
Irwin Feller 《Minerva》2009,47(3):323-344
Neoliberal precepts of the governance of academic science-deregulation; reification of markets; emphasis on competitive allocation processes have been conflated with those of performance management—if you cannot measure it, you cannot manage it—into a single analytical and consequent single programmatic worldview. As applied to the United States’ system of research universities, this conflation leads to two major divergences from relationships hypothesized in the governance of science literature. (1) The governance and financial structures supporting academic science in the United States’ system of higher education are sufficiently different from those found in many other OECD countries where these policies have been adopted to produce political pressures for an increase rather than a decrease in governmental control over university affairs. (2) The major impact upon academic science of performance measurement systems has come not externally from new government requirements but internally from the independent adoption of these techniques by universities, initially in the name of rational management and increasingly as devices to foster reputational enhancement. The overall thrust of the two trends in the U.S. has been less a shift as experienced elsewhere from bureaucratic to market modes of governance than the displacement of professional-collegial control by internal bureaucratic control.  相似文献   
312.
Biochemical markers of inflammation are emerging as new predictors of risk of cardiovascular disease (CVD) and may alter acutely with exercise. Few studies have been conducted on the effects of walking on these markers or whether different walking intensities elicit varied effects. As there is growing interest in modifiable lifestyle factors such as walking to reduce CVD risk, these inflammatory responses warrant investigation. The aim of this study was to compare the effects of walking at 50% versus 70% of predicted maximal heart rate on C-reactive protein (CRP), plasma fibrinogen, and triglycerides in sedentary post-menopausal women. Twelve post-menopausal women (mean age 58 years, s +/-6; stature 1.62 m, s+/-0.06; body mass 66.8 kg, s +/-6.2) completed two 30-min treadmill walks in a randomized cross-over design. Fasted blood samples were taken (for the determination of plasma fibrinogen, CRP, and lipids) before, immediately after, and 1 and 24 h after exercise. Triglyceride concentrations decreased from pre-exercise to 24 h post exercise at both walking intensities (time x group interaction, P < 0.05). No significant effects were observed for plasma fibrinogen, CRP, total cholesterol, low-density or high-density lipoprotein cholesterol (time x group interaction, P > 0.05). The results of this study suggest that fasting plasma triglycerides are decreased on the morning after 30 min of brisk walking at either 50% or 70% of maximal heart rate (moderate and vigorous intensity).  相似文献   
313.
Kinetic analyses of the chalked bar longswing on high bar and its associated progressions were used to explain musculoskeletal contributions during the performance of these skills. Data on four international male gymnasts performing three series of chalked bar longswings and eight progressions were recorded. Customized body segment inertia parameters, two-dimensional kinematics (50 Hz), and bar forces (1000 Hz) were used as input to inverse dynamic modelling. The analysis focused on the relative contributions of the knees, hips, and shoulders with root mean squared differences between the chalked bar longswing and the progressions being used to rank the progressions. Seventy per cent of the total work occurred between 200 degrees and 240 degrees of angular rotation in the longswing, 67% of which was contributed by the shoulders. The shoulders were also dominant in all progressions, with the largest such contribution occurring in the looped bar longswing with "no action". The least similar progression was the looped bar pendulum swing, while the most similar was the chalked bar bent knee longswing. This study provides a useful means for ranking progressions based on their kinetic similarity to the chalked bar longswing and builds on earlier research in identifying that progressions can be classified into those similar in physical demand (kinetics) and those similar in geometry (kinematics).  相似文献   
314.
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号