现代体育与建立居民健康生活方式的研究     

曹永林  葛振斌 《雁北师范学院学报》2011,27(5)

和谐社会是＂以人为本＂的社会,而健康的生活方式是促进人的健康发展,所以都是为了人的发展。本研究通过对体育生活方式研究,使居民建立健康生活方式,有助于促进人们身体、心理、社会适应等健康发展,对提高人们生活质量,具有深远的意义。  相似文献   

我国空间科学卫星任务国际合作管理实践与思考——以中国科学院空间科学战略性先导科技专项为例          下载免费PDF全文

王赤  李超  孙丽琳 《中国科学院院刊》2020,35(8):1032-1040

国际合作是空间科学发展的客观需要,也是我国走近世界空间科学舞台中央的必由之路。中国科学院空间科学战略性先导科技专项(以下简称"空间科学先导专项")的空间科学卫星系列任务在全生命周期的创新发展链条上开展了全面、广泛、全方位、多层次的实质性国际合作,合作伙伴涉及欧洲空间局、欧洲主要航天国家,以及美国、俄罗斯、加拿大、澳大利亚、日本、新加坡等。空间科学先导专项通过建立双边战略研讨机制、共建国际研究机构,促进国际交流与合作,深化任务的国际论证,以及优选先进的科学探测仪器,确保科学目标的原创性和重大性。通过加强合作任务的工程管理和科学管理,实行"项目双首席科学家"和"载荷科学家"模式,促进重大成果产出。文章梳理了空间科学卫星系列任务的国际合作情况,重点阐述对不同层级国际合作的管理实践,对事关国际合作成败的常见问题进行思考并提出了对策建议,力求为后续国际合作任务管理提供重要参考。  相似文献   

Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool     

Honglei Lin  Zhiping He  Wei Yang  Yangting Lin  Rui Xu  Chi Zhang  Meng-Hua Zhu  Rui Chang  Jinhai Zhang  Chunlai Li  Hongyu Lin  Yang Liu  Sheng Gou  Yong Wei  Sen Hu  Changbin Xue  Jianfeng Yang  Jie Zhong  Xiaohui Fu  Weixing Wan  Yongliao Zou 《国家科学评论(英文版)》2020,7(5):913

Chang’E-4 landed in the South Pole-Aitken (SPA) basin, providing a unique chance to probe the composition of the lunar interior. Its landing site is located on ejecta strips in Von Kármán crater that possibly originate from the neighboring Finsen crater. A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission operations. In situ spectra of the regolith have peak band positions at 1 and 2 μm, similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper, which confirms that the regolith''s composition of the landing area is mostly similar to that of Finsen ejecta. The rock spectrum shows similar band peak positions, but stronger absorptions, suggesting relatively fresh exposure. The rock may consist of 38.1 ± 5.4% low-Ca pyroxene, 13.9 ± 5.1% olivine and 48.0 ± 3.1% plagioclase, referred to as olivine-norite. The plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle, but representative of the lunar lower crust. Alternatively, the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle materials. This scenario is consistent with fast-cooling thermal conditions of a shallow melt pool, indicated by the fine to medium-sized texture (<3 mm) of the rock and the SPA-impact melting model [Icarus 2012; 220: 730–43].  相似文献   

Rapid phenotypic evolution with shallow genomic differentiation during early stages of high elevation adaptation in Eurasian Tree Sparrows     

Yanhua Qu  Chunhai Chen  Ying Xiong  Huishang She  Yong E Zhang  Yalin Cheng  Shane DuBay  Dongming Li  Per G P Ericson  Yan Hao  Hongyuan Wang  Hongfeng Zhao  Gang Song  Hailin Zhang  Ting Yang  Chi Zhang  Liping Liang  Tianyu Wu  Jinyang Zhao  Qiang Gao  Weiwei Zhai  Fumin Lei 《国家科学评论(英文版)》2020,7(1):113

Known as the ‘third polar region’, the Qinghai-Tibet Plateau represents one of the harshest highland environments in the world and yet a number of organisms thrive there. Previous studies of birds, animals and humans have focused on well-differentiated populations in later stages of phenotypic divergence. The adaptive processes during the initial phase of highland adaptation remain poorly understood. We studied a human commensal, the Eurasian Tree Sparrow, which has followed human agriculture to the Qinghai-Tibet Plateau. Despite strong phenotypic differentiation at multiple levels, in particular in muscle-related phenotypes, highland and lowland populations show shallow genomic divergence and the colonization event occurred within the past few thousand years. In a one-month acclimation experiment investigating phenotypic plasticity, we exposed adult lowland tree sparrows to a hypoxic environment and did not observe muscle changes. Through population genetic analyses, we identified a signature of polygenic adaptation, whereby shifts in allele frequencies are spread across multiple loci, many of which are associated with muscle-related processes. Our results reveal a case of positive selection in which polygenic adaptation appears to drive rapid phenotypic evolution, shedding light on early stages of adaptive evolution to a novel environment.  相似文献   

The romance and reality of policy‐making and implementation: a case study of the target‐oriented curriculum in Hong Kong     

Chi Chung Lam 《教育政策杂志》2013,28(6):641-655

One of the major innovations in the recent wave of education reform in Hong Kong is the target‐oriented curriculum. An interesting feature of this new curriculum initiative was its amoebic characteristics – changing shape and focus in its course of development. It was reshaped from an assessment system for accountability purposes to a centrally developed curriculum initiative for improving teaching and learning, and finally to a school‐based curriculum development. In this paper, this course of development and the reasons behind it will be described and analysed. The study suggests that the two‐tier educational policy and implementation system in Hong Kong is a major cause leading to such a phenomenon. If this system were not improved, the possibility of achieving real changes at the school and classroom level would be low.  相似文献   

古籍修复人才的培养   总被引：5，自引：0，他引：5  

葛怀东 《图书馆论坛》2007,27(1):146-148,109

我国古籍破损日趋严重，但古籍修复人才奇缺。文章分析了古籍修复人才缺失的原因，并阐述了从古籍修复文化工程到政策导向，从办学理念及实效到职业化认证等多方面来保障古籍修复人才的培养。  相似文献   

"大语文"教育观与开放式大学语文课程教学     

葛娟  王飞华  蒋婧 《浙江传媒学院学报》2007,15(6):35-37

如何提高大学语文的教学效力,实现该课程的终极教学目的?这是近年来大学语文课程改革关注的重点.我们认为,树立"大语文"教育观,实施开放式课程教学,提高学生语言文化素养,促进学生的自主性发展,是推进大学语文课程改革的有效途径."大语文"教育观是开放式大学语文课程教学的理论先导,文章在论述开放式课程建构意义的基础上,着重探讨了开放式课程的核心内涵,进而提出了开放式课程教学的实施意见.  相似文献   

女子赛艇运动员VO2max与专项力量在月经周期的变化研究   总被引：4，自引：0，他引：4  

张美江  邓士琳  葛新发 《武汉体育学院学报》2002,36(6):44-46

研究目的在于观察月经周期规则的女子赛艇运动员VO2max与专项力量在月经周期的变化并探讨其发生机制。结果显示，女子赛艇运动员的最大摄氧量和专项力量与月经周期有关系，黄体期运动能力要明显强于卵泡早期，这与月经周期的性激素水平的变化有关系。  相似文献   

儿童、少年篮球运动员选材标准的研制过程与方法   总被引：3，自引：0，他引：3  

池建  邢文华  林珍瑜 《北京体育大学学报》1993,(4)

经经验初选、统计筛选(主成份分析和聚类分析)、小样本测试检验和专业理论知识分析评定4个步骤,在初步拟定的40项选材指标中选出6大类、16项指标为本课题的选材指标。旨在建立全国统一的各年龄段儿童、少年篮球运动员的选材指标体系,并制定选材标准及评价方法。  相似文献   

普通高校对实施《体育与健康》课程认识的调查研究     

王革  卓莉  张驰  唐海军 《体育科研》2004,25(1):69-71

采用文献资料、问卷调查、专家访谈等科研方法对普通高校实施《体育与健康》课程认识进行调查,结果表明:多数高校体育教师认为《体育与健康》课程符合大学生的身心发展特点,赞成《体育与健康》的提法,并肯定了其效果。  相似文献