青少儿寒暑假屏前静态行为与体育参与现状及关联性研究     

贾洪洲 《当代体育科技》2020,(9):244-248

"屏前静态行为"与"体育参与"是当前影响青少儿体质健康的2个重要因素,通过文献资料法、问卷调查法研究发现:青少儿寒暑假存在过度屏前静态行为,学段与屏前静态行为成正相关,外界监管是影响屏前静态行为的重要因素,可及性是青少儿选择电子媒介的关键因素。寒暑假期间青少儿体育参与率较低,其中大学生体育参与率最低,依次是小学生、高中生和初中生。青少儿屏前静态行为与体育参与两者之间存在负相关,同时两者发展规律不同,具有相对独立性。  相似文献   

Professional knowledge or motivation? Investigating the role of teachers’ expertise on the quality of technology-enhanced lesson plans     

《Learning and Instruction》2020

In an expertise study with 94 mathematics teachers varying in their relative teacher expertise (i.e., student teachers, trainee teachers, in-service teachers), we examined effects of teachers' professional knowledge and motivational beliefs on their ability to integrate technology within a lesson plan scenario. Therefore, we assessed teachers' professional knowledge (i.e., content knowledge, pedagogical content knowledge, technological knowledge), and their motivational beliefs (i.e., self-efficacy, utility-value). Furthermore, teachers were asked to develop a lesson plan for introducing the Pythagorean theorem to secondary students. Lesson plans by advanced teachers (i.e., trainee teachers, in-service teachers) comprised higher levels of instructional quality and technology exploitation than the ones of novice teachers (i.e., pre-service teachers). The effect of expertise was mediated by teachers' perceived utility-value of educational technology, but not by their professional knowledge. These findings suggest that teachers’ motivational beliefs play a crucial role for effectively applying technology in mathematics instruction.  相似文献   

Analyzing Food Science Research for Publishing Characteristics as a Model for Understanding the Needs of Researchers     

Lutishoor Salisbury  Jeremy J. Smith  Abayomi Omotola Omolewu 《资料收集管理》2020,45(4):335-353

Abstract

This paper provides a methodology to study the characteristics of the research output from a university department. The faculty publications and their cited references over a 10-year period were used as the basis for this study to identify their publishing patterns and the types of material they are publishing; a core set of journals and other resources they are publishing in and citing over this period; the characteristics of the journals in which they publish and cite; the degree of openness of their publications and their citation advantage; and the age of resources that are referenced.  相似文献   

“一带一路”体育赛事交流构想与策略——以英联邦运动会为参照     

王子朴  陈秉信  马家鑫  刘冬磊 《上海体育学院学报》2020,(4):61-69,94

体育是“一带一路”倡议人文交流的重要依托,体育赛事对实现民心相通发挥积极作用。英联邦运动会的长期举办推动了英联邦国家的整体发展,是体育赛事交流的典型案例。通过对英联邦运动会与“一带一路”体育赛事的对比,分析其对“一带一路”体育赛事的借鉴作用,并探讨“一带一路”体育赛事交流的构想与策略。认为:开展“一带一路”体育赛事交流应建立“一带一路”体育组织,组建相应的工作机构,举办“一带一路”国家运动会;构建“多边体育合作机制”,不断扩大“一带一路”体育赛事的覆盖面,重视赛事风险并避免负面影响,鼓励、支持多国举办“一带一路”体育赛事。  相似文献   

我国开展女子十项全能运动的必要性及实施策略   总被引：3，自引：0，他引：3  

赵鲁南 《山东体育学院学报》2003,19(2):54-57

运用献资料、逻辑归纳、对比分析、专家访谈等方法，分析奥运会田径项目发展趋势，指出男女田径项目设置将最终走向数量、形式上完全融合，提出我国提前开展女子十项全能运动的原因、意义及实施措施，旨在为我国田径运动更好地开展及竞技运动水平的快速提高提供参考依据。  相似文献   

学校体育对中小学生心理健康教育影响作用探讨   总被引：30，自引：0，他引：30  

兰自力  骆映 《体育与科学》2003,24(1):72-74

通过文献资料研究、社会调查、专家访谈和比较分析等研究方法，对我国部分地区中小学生心理健康状况进行了调查分析，并运用体育学、保健学、教育学和心理学等学科理论知识与研究成果，探讨了学校体育对中小学生心理健康教育影响的积极效应与促进作用。  相似文献   

体育与(健康)课程中的心理健康教育     

王霞 《福建体育科技》2003,22(2):62-64

本文阐述了体育 (与健康 )课程中实施心理健康教育的意义及该课程对心理健康的影响 ,并对体育 (与健康 )课程中实施心理健康教育的途径进行了探讨 ,为全面推进素质教育 ,提高学生心理健康水平提供参考。  相似文献   

对天水市国有工业企业增长能力的财务分析     

何建华  王建强 《天水师范学院学报》2003,23(5):50-52

天水国有工业企业中存在的财务问题主要表现在资产内部结构不合理，所有者权益比重过低，产品销售成本过高等几个方面。天水国有工业企业应积极调整资产内部结构，实行企业产权多元化，增加所有者权益在资产总额中的所占比重，降低负债率，进一步提高企业资产增长能力；并在调整产品结构、拓展市场、增加产品销售收入的同时，严格控制产品销售成本，努力增加产品销售利润，提高企业收益增长能力。  相似文献   

女排运动员的身心特征及训练要求     

刘惠莲 《军事体育进修学院学报》2003,22(1):53-55

从女排队员人体解剖、生理机能、心理状态、技战术特点及发展趋势等方面阐述女排队员的特征及训练原则，为女排运动训练及比赛提供一定的理论依据。  相似文献   

Medieval and renaissance glass technology in Valdelsa (Florence). Part 1: raw materials, sands and non-vitreous finds     

U. Casellato  F. Fenzi  P. Guerriero  S. Sitran  P. A. Vigato  U. Russo  M. Galgani  M. Mendera  A. Manasse 《Journal of Cultural Heritage》2003,4(4):337-353

A significant number of archaeological finds of the 13th–16th century from the Tuscan sites of Germagnana and Gambassi in Valdelsa—FI, was studied by different physico-chemical investigations (SEM–EDS, ICP, Mössbauer spectroscopy, XRD, XRF, TG-DTA) in order to contribute to clarify the production methodology and the pre-industrial glass manufacture technology. The studied samples are mainly non-vitreous finds as production waste, refractory materials, crucibles and raw materials; also vitreous finds as frits, skims, glasses (glass masses, glass working waste and finished products) have been taken into consideration. The obtained petrographic and physico-chemical data strongly suggest that both Gambassi and Germagnana glass manufactures were strictly connected with the sources of vitrifiable materials, situated in Tuscan sand quarries. In particular a comparison between sands from the neighbouring quarries and appropriate finds of the two archaeological sites evidences that the employed vitrifiable materials possibly belong to La Casina La Cava resort. The archaeological classification, based on macroscopic observation and stratigraphic position, was compared and verified with the scientific classification of the examined finds of Germagnana and Gambassi sites based on their composition, morphology and physico-chemical properties.  相似文献