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   2044篇
  免费   48篇
  国内免费   17篇
教育   1292篇
科学研究   256篇
各国文化   2篇
体育   319篇
综合类   168篇
信息传播   72篇
  2024年   1篇
  2023年   4篇
  2022年   26篇
  2021年   68篇
  2020年   60篇
  2019年   45篇
  2018年   37篇
  2017年   47篇
  2016年   49篇
  2015年   52篇
  2014年   160篇
  2013年   178篇
  2012年   130篇
  2011年   168篇
  2010年   112篇
  2009年   107篇
  2008年   120篇
  2007年   141篇
  2006年   107篇
  2005年   117篇
  2004年   98篇
  2003年   87篇
  2002年   51篇
  2001年   44篇
  2000年   25篇
  1999年   22篇
  1998年   7篇
  1997年   8篇
  1996年   6篇
  1995年   6篇
  1994年   6篇
  1993年   6篇
  1992年   6篇
  1991年   1篇
  1990年   1篇
  1989年   1篇
  1983年   1篇
  1982年   1篇
  1981年   1篇
  1979年   1篇
  1957年   1篇
排序方式: 共有2109条查询结果,搜索用时 15 毫秒
11.
校内卫生机构的主要任务是预防保健和常见病的防治,此类以公益性为主的工作不能推向社会,更不能弱化。本就全国高校卫生机构的现状和改革带来的变化,探讨高校改革中卫生机构的定位。  相似文献   
12.
体力活动与健康:研究及应用   总被引:2,自引:0,他引:2  
规律性体力活动对健康的益处已经被既往的研究所证实。多种慢性疾病,包括心脏病、2型糖尿病、高血压、中风、肥胖、骨质疏松以及某些癌症的发病都与缺乏规律性的体力活动有关。权威机构已明确提出了关于体力活动的参与指引。大量的研究致力于体力活动干预措施的制定。本文总结了体力活动与健康的研究证据、体力活动在人群中的评价、以及体力活动干预研究的进展,为中国下一步相关研究的开展提供借鉴。  相似文献   
13.
中学生体育训练经常出现各种运动损伤,运动损伤将会给中学生的学习和生活带来负面影响。采用文献资料调研法,访谈法对中学生体育训练常见的运动损伤情况,及其产生的原因进行了分析,并就如何预防运动损伤提出了一些建议和预防要注意的原则。  相似文献   
14.
军体教学中过度紧张的消除   总被引:1,自引:0,他引:1  
针对部队院校体操教学训练过程中,学员易产生过度紧张的现象,从内因和外因两个方面阐述了预防与消除过度紧张的方法。  相似文献   
15.
试论“网球肘”的成因、诊断、预防与治疗   总被引:2,自引:0,他引:2  
“网球肘”是网球运动中常见的一种伤病。通过研究“网球肘”的成因、诊断、预防与治疗,预防伤病的发生。  相似文献   
16.
综述了运动对绝经后妇女骨密度和骨代谢影响的一些新的研究进展,并提出防治绝经后妇女骨质疏松症的运动处方有关要求。  相似文献   
17.
Broader contextual factors that influence concussion management have tended to be overlooked. To address this, the present study used a sociotechnical systems approach to identify perceived responsibilities and applied strategies for three domains of concussion management (i.e., prevention, identification and treatment). Participants were 118 members of the community rugby union system in Australia (69.2% male). Participants from throughout the rugby system (e.g., players, parents, coaches, club management) were asked open-ended questions about their perceived responsibilities and the strategies they use for concussion management. It was found that (a) proper training, technique correction and education were recurrent prevention themes; (b) the majority of key stakeholders felt that they could consistently identify concussion; however, medical aids (medics) were the only system actors who stated a responsibility to use standardised concussion assessment measures and (c) less than one third of the respondents indicated their involvement in treating concussion. This study identifies specific junctures in the system that prevents effective concussion management strategies. A sociotechnical systems approach improves the understanding of concussion prevention, and management beliefs and behaviours.  相似文献   
18.
The present investigation was carried out to examine the incidence and pattern of injuries in adolescent multisport athletes from youth sports academy. Injury data were prospectively collected from 166 athletes during the seasons from 2009 to 2014. A total of 643 injuries were identified, 559 (87.0%) were time-loss injuries. The overall injury incidence was 5.5 (95% confidence interval CI: 5.1–6.0), the incidence of time-loss injuries was 4.8 (95% CI: 4.4–5.2), the incidence of growth conditions was 1.2 (95% CI: 1.0–1.4) and incidence of serious injuries was 0.6 (95% CI: 0.5–0.8) per 1000?h of exposure. The prevalence of overuse injuries was 50.3%. Growth conditions represented 20.0%. Most of the injuries (67.0%) involved the lower extremities, and both foot and ankle were the most predominant injured body parts (22.0%). Knee injuries were mostly from overuse (50 vs. 23, p?=?.02), whereas foot and ankle injuries resulted from an acute mechanism (94 vs. 31, p?<?.0001). Minor and moderate injuries accounted for 87.0%. Muscle, tendon and osteochondrosis injuries accounted for 52.0% of all injuries. Comparing groups, squash sport was having the highest injury incidence (8.5 injuries per athlete). Higher exposure was associated with greater overuse relative risk (RR?=?1.03, 95% CI: 1.01–1.014, p?<?.001). In conclusion, the results of this study identified a high incidence of injuries in this youth sports population. Striking was the prevalence of overuse injuries of 50%, which suggests the need for injury prevention protocols for adolescent highly trained athletes.  相似文献   
19.
Guidelines to support health care professionals in early detection of, and responses to, suspected Child Abuse and Neglect (CAN) have become increasingly widely available. Yet little is known about professionals’ adherence to these guidelines or the determinants that affect their uptake. This study used a cross-sectional design to assess the adherence of Dutch Child Health Care (CHC) professionals to seven key activities described in a national guideline on preventing CAN. This study also examined the presence and strengths of determinants of guideline adherence. Online questionnaires were filled in between May and July 2013 by 164 CHC professionals. Adherence was defined as the extent to which professionals performed each of seven key activities when they suspected CAN. Thirty-three determinants were measured in relation to the guideline, the health professional, the organisational context and the socio-political context. Bivariate and multivariate regression analyses tested associations between determinants and guideline adherence. Most of the responding CHC professionals were aware of the guideline and its content (83.7%). Self-reported rates of full adherence varied between 19.5% and 42.7%. Stronger habit to use the guideline was the only determinant associated with higher adherence rates in the multivariate analysis. Understanding guideline adherence and associated determinants is essential for developing implementation strategies that can stimulate adherence. Although CHC professionals in this sample were aware of the guideline, they did not always adhere to its key recommended activities. To increase adherence, tailored interventions should primarily focus on enhancing habit strength.  相似文献   
20.
Test security is not an end in itself; it is important because we want to be able to make valid interpretations from test scores. In this article, I propose a framework for comprehensive test security systems: prevention, detection, investigation, and resolution. The article discusses threats to test security, roles and responsibilities, rigorous training for everyone involved in testing, and an evaluation of current practices in test security. I call on everyone responsible for testing programs—the Association of Test Publishers, Council of Chief State School Officers, National Council on Measurement in Education, U.S. Department of Education, and state assessment program managers, their vendors, and the research community—to collaborate on guidelines and practices for security violation prevention, detection, investigation, and resolution.  相似文献   
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