Does modality matter? A latent profile and transition analysis of sedentary behaviours among school-aged youth: The UP&DOWN study     

David Sánchez-Oliva  Rebecca M. Leech  Alberto Grao-Cruces  Irene Esteban-Cornejo  Carmen Padilla-Moledo  Oscar L. Veiga 《Journal of sports sciences》2020,38(9):1062-1069

ABSTRACT

The aims of this study were to identify profiles of sedentary behaviour (SB) patterns, based on leisure-time self-reported SB modalities (screen, educative, social, and relaxing) and to evaluate changes in these profiles over 2 years among Spanish youth aged 8–18 years. Latent profile analysis (LPA), a data-driven analytic approach, was used to identify groups of boys and girls (n = 1553; 48% girls; mean±SD age: 12.56 ± 2.49 y) with distinct SB profiles using the SB modalities (time/d) as input variables. Latent transition analysis, an extension of LPA that uses longitudinal data, was used to analyse 2-year changes in these profiles. At baseline, four and three SB profiles were found among boys (labelled: screen, educative, social, and relaxing) and girls (labelled: screen/social, educative, and relaxing), respectively. Overall, more girls (range: 48%-67%) had the same profile over time, than boys (40%-52%). Participants with a screen or relaxing SB profile at baseline were more likely to have an educative profile after 2 years. Youth with a social and an educative SB profile at baseline were more likely to transition to profiles characterized by higher screen and social SB, respectively. Using a novel and person-centered approach, this study identified gender-specific SB profiles that were moderately stable over time.  相似文献   

Reimagining Newsroom Collaboration: How Two European News Nonprofits Are Inviting Citizens In     

Magda Konieczna 《Journalism Practice》2020,14(5):592-607

ABSTRACT

News nonprofits in the U.S. have been proliferating over 15 years as a way of addressing troubles in the business model for news. For these newsrooms, collaboration, with each other and with mainstream news, has emerged as a key way to build readership and attain relevance in a crowded media space. Still, past research has told us that the strong connection to mainstream news has constrained these organizations’ critique of journalism. In Europe, nonprofit news remains nascent and represents a response to declining trust in and engagement with journalism, and rising populism across the continent. Against this very different context, this study examines two players at the forefront of the European news nonprofit movement. It demonstrates the path dependency inherent in the origins of these organizations: In Europe, they are a response to a different societal change, and thus developed rather differently than did their peers in the United States, with a focus on redefining the idea of collaboration and the role of their audiences by seeing citizens as collaborators, both in the creation and in the dissemination of news. By seeing citizens as collaborators, not just readers, they work to empower and build news audiences as well as participants.  相似文献   

关于社区体育服务概念与几个关系的再认识   总被引：12，自引：0，他引：12  

包雪鸣 《山东体育学院学报》2003,19(2):24-27

在社会转型期，我国社区体育服务尚缺乏稳定成熟的理论体系，实践中也难以形成稳定的制度化的格局。对社区体育服务的概念、政府行为与社会行为的关系、福利性与经营性的关系、社会化与专业化的关系等问题进行了研究，并提出了相应的对策，以期有助于促进我国转型期的社区体育服务事业的发展。  相似文献   

时代特征与马克思主义的理论形态     

毛根民 《苏州市职业大学学报》2003,14(4):4-10

150多年来，马克思主义随着人类历史的发展和时代课题的解决，在实践中形成了新的形态，使马克思主义成为与时俱进的普遍真理，使社会主义在曲折中不断向前发展，成为人类社会发展不可逆转的总趋势。  相似文献   

教师专业化背景下反思型体育教师培养模式   总被引：1，自引：0，他引：1  

霍军 《湖北体育科技》2006,25(6):723-725

教师的专业化发展要求教师成为反思型教师,而反思型教师的成熟和发展离不开教育实践的锻炼和促进,只有将实践中反映出来的问题上升到理论层面加以反思,才能探寻到根源,使主体的合理性水平得到提升和拓宽.体育教师要坚持积极的自我反思与实践,以主体身份投入其中,扩大自己的专业视野,逐步养成教育反思的习惯,建立自我反思机制,成为反思型教师,同时促进教师专业化发展.  相似文献   

构建高校三级跳远运动员训练模式探究     

刘桂海 《体育科技》2004,25(3):9-12

在多年实践的基础上 ,对高校三级跳远运动员的训练进行剖析 ,确认训练应以技术训练为核心 ,以运动员个人特点为训练基础 ,以及正确处理力量素质训练与技术训练的关系 ,技术训练中的负荷问题 ,提出适合高校三级跳远训练的模式 ,并进行了理论上的探索  相似文献   

高师高等数学课的几种课型设计     

张若峰  杨明 《天水师范学院学报》2001,21(5):60-61

针对高等数学课程教学的不足设计了三种行之有效的课型,并给出了它们的应用.  相似文献   

我国中小企业融资困难的原因与对策分析     

钟声 《湖北函授大学学报》2004,17(2):45-46

中小企业融资困难是一个普遍性问题。其原因是银行等金融机构的制度安排不尽合理,以及企业本身 管理水平低、信用差。应从银行制度创新和加强以人才为基础、财务为核心、战略为先导的企业管理等方面,提高企 业综合素质和信用水平。  相似文献   

体育专业计算机教育中的教学模式研究   总被引：1，自引：0，他引：1  

刘玫瑾  周莉 《北京体育大学学报》2002,25(2):246-247

基于计算机基础教育是素质教育的认识,研究了体育与计算机教育的教与学的模式.着重讨论了体育与计算机教育的教与学中的一些重要手段:四年的教育不断线,模块化的教学方法,多功能的教学环境等.  相似文献   

非文学记叙文体的阅读     

刘利 《涪陵师范学院学报》2003,19(4):42-44

非学记叙体在承载人类明的诸种字媒介中，自有其独到而重要的地位和影响，故阅读这一类体也并非一望而知，无需方法的。要正确地理解和阅读非学记叙，必须建构正确的“阅读模式”。正确的“阅读模式”的建立，应在了解记叙体总体特征的同时，着力把握非学记叙在内容、形式上的特殊性，即：朴素的记叙性，严格的纪实性和较强的实用性，并针对这种特殊性，采取“理智性”、“汲取性”的阅读方式——以汲取章思想内容为要旨，达到求知益智的目的。  相似文献