面向“十四五”谋篇布局统筹推进创新基础设施建设

随着新型基础设施在经济社会发展中的基础性、战略性作用日益突显,其内涵也从最初的5G、物联网等逐步拓展至包含信息、融合和创新3种类型的基础设施。创新基础设施是信息技术前沿发展和技术进步的支撑平台,也是新型基础设施形态得以持续演进、功能得以不断拓展的动力源;将创新基础设施纳入新型基础设施的范畴,体现了国家对科技创新的充分信任和殷切期待。厘清3类新型基础设施的内涵与关系,认清当前创新基础设施发展面临的问题和挑战,在“十四五”时期高效布局创新基础设施,对于统筹提升新型基础设施的供给质量和效率具有重要意义。     

Temporal trends in 6-minute walking distance for older Japanese adults between 1998 and 2017

BackgroundThe 6-minute walking distance (6MWD) is an excellent measure of both functional endurance and health. The primary aim of this study was to estimate temporal trends in 6MWD for older Japanese adults between 1998 and 2017; the secondary aim was to estimate concurrent trends in body size (i.e., height and mass) and self-reported participation in exercise/sport.MethodsAdults aged 65–79 years were included. Annual nationally representative 6MWD data (n = 103,505) for the entire period were obtained from the Japanese Ministry of Education, Culture, Sports, Science and Technology. Temporal trends in means (and relative frequencies) were estimated at the gender–age level by best-fitting sample-weighted linear/polynomial regression models, with national trends estimated by a post-stratified population-weighting procedure. Temporal trends in distributional variability were estimated as the ratio of coefficients of variation.ResultsBetween 1998 and 2017 there was a steady, moderate improvement in mean 6MWD (absolute = 45 m (95% confidence interval (95%CI): 43–47); percent = 8.0% (95%CI: 7.6%–8.4%); effect size = 0.51 (95%CI: 0.48–0.54)). Gender- and age-related temporal differences in means were negligible. Variability in 6MWD declined substantially (ratio of coefficients of variation = 0.89, 95%CI: 0.87–0.92), with declines larger for women compared to men, and for 75–79-year-olds compared to 65–74-year-olds. Correspondingly, there were moderate and negligible increases in mean height and mass, respectively, and negligible increases in the percentage who participated in exercise/sport at least 3 days per week and at least 30 min per session.ConclusionThere has been a steady, moderate improvement in mean 6MWD for older Japanese adults since 1998, which is suggestive of corresponding improvements in both functional endurance and health. The substantial decline in variability indicates that the temporal improvement in mean 6MWD was not uniform across the distribution. Trends in 6MWD are probably influenced by corresponding trends in body size and/or participation in exercise/sport.     

“健康中国2030”背景下群众体育中“另类”健身的成因、消极影响与治理路径

运用文献资料法、访谈法、现场调查等研究方法,对群众体育发展过程中出现的"另类"健身方式进行分析,主要结论:身体健康需求与体育健身知识匮乏的矛盾、现代体育在群众体育健身活动中指导不足、中国传统文化的长期影响和学校体育工作开展不力造成群众体育中出现"另类"健身行为。造成的消极影响主要是民众身体素质的下降和异化体育的核心价值。建议:普及体育科学文化,增加民众体育素养;加强社会风气引导,培育健康生活方式;发掘传统中医中药,充实学校体育课程;保障体育活动安全,提升公共服务质量;开展体育攻坚扶贫,推动民众科学健身。     

儿童青少年体能发展敏感期相关热点问题

近年来,旨在提高儿童青少年体质健康的研究众多,其中儿童青少年体能发展敏感期问题的研究正成为热点研究。通过文献资料法和逻辑分析法等,对近30年来“敏感期”相关文献进行梳理。研究表明：国内外“敏感期”的界定标准不统一,难以形成科学成果;“敏感期”干预方法单一,缺乏综合干预方法;“敏感期”与“非敏感期”干预效果的研究还存在争议。研究认为：“敏感期”不仅受儿童青少年生理、心理因素的影响,同时遗传、环境、社会经济等对“敏感期”也具有重要作用。因此,未来应深入研究“敏感期”的构成因素,重视理论研究与实践研究相结合,强化“敏感期”的综合研究。     

Kinship,Camaraderie and Contestation: Fāṭimid Relations with the Ashrāf in the Fourth/Tenth Century.

The founding of the Fā?imid caliphate across the southern Mediterranean, and then in Egypt, Syria and the ?ijāz at the turn of the fourth/tenth century, necessitated its negotiation with the ashrāf, those who claimed lineal descent from the Prophet Mu?ammad, and who by this time had gained significant influence as a social class based on their charismatic descent. While other dynastic powers fostered relationships with various members of the ashrāf, the Fā?imid–ashrāf dynamics were distinctive in that the Fā?imids legitimised their rule as Ismā?īlī Shī?ī imām-caliphs, based on their claim of descent from the Prophet Mu?ammad, and as the sole successors to his authority and leadership over the Islamic world. Consequently, Fā?imid–ashrāf relations were permeated by fraternal camaraderie as well as by competing contestations based on their shared claim to Prophetic lineage.     

健身气功八段锦功法初探

针对当今社会人们在学习、生活、工作等方面压力越来越大、无法长期坚持体育锻炼而造成体质下降等现象,本文向大家介绍八段锦健身气功新功法,旨在为大家缓解压力、解除疲劳、促进身心健康提供一些参考。     

固态继电器在全新风机组中的应用

本文介绍了应用固态继电器及可编程逻辑控制器实现的控制全新风空调机组送风温度的方法。使用这种方法设计的空调机控制系统在有效控制机组的送风温度的同时大大节约了生产成本。     

Health-related fitness knowledge growth in middle school years: Individual- and school-level correlates

BackgroundHealth-related fitness knowledge (HRFK) has been an essential concept for many health and physical education programs. There has been limited understanding and longitudinal investigation on HRFK growth. This longitudinal study examined HRFK growth and its individual- and school-level correlates in middle school years under 1 curriculum condition: Five for Life.MethodsParticipants were 12,044 students from 47 middle schools. Data were collected at both individual/participant and school/institution levels. Individual-level variables included gender, grade, and HRFK test scores. School-level variables included percentage of students receiving free and reduced meals (FARM), student-to-faculty ratio for physical education, and school academic performance (SAP). We used hierarchical linear modeling to examine HRFK 3-year growth in relation to individual- and school-level correlates.ResultsThe average HRFK score at 6th grade for females was 42.81% ± 1.32%. The predicted HRFK growth was 17.06% ± 1.02% per year, holding other factors constant. A 1-standard deviation increase in FARM correlated with a 14.68%-point decrease in predicted test score (p = 0.02). A 1-standard deviation increase in SAP was associated with an 11.90%-point increase in HRFK score. Males had a significantly lower growth rate than females during the middle school years (0.78%/year, p = 0.02).ConclusionThe result showed that both individual- and school-level variables such as gender, FARM, and SAP influenced HRFK growth. Educators should heed gender differences in growth curves and recognize the correlates of school-level variables.     

大学生职业生涯规划探讨

职业生涯规划,关系着一个人是否能在社会环境中找到自己的正确定位、充分发挥自己的潜能、走向成功.它是大学生迈入社会,实现自己人生抱负的关键一步.大学生当前面临职业生涯理念模糊,学校所提供的相应服务亦需要完善等问题,因此,大学生应提高对职业生涯规划重要性的认识,积极进行职业生涯规划;学校也应帮助学生制订切合实际的职业生涯规划.     

贯彻《教育规划纲要》建设高水平的民办大学

全国教育工作会议的召开和《教育规划纲要》的颁布,是我国教育事业改革发展的新的里程碑,意义重大,影响深远。学习宣传、贯彻落实好全国教育工作会议和《教育规划纲要》精神,是高等学校今后一个时期的重要任务和中心工作。民办高校是高等教育事业发展的重要增长点和促进教育改革的重要力量。注重以人为本,强化质量意识,突出办学特色,是贯彻落实《教育规划纲要》的重要举措,也是创建高水平民办大学的迫切需要。