东盟区域龙狮运动国际传播的伦理困境     

王湘丽  张智 《体育科技文献通报》2020,(2):11-13

东盟区域龙狮运动传播过程中伦理困境的解决是促进龙狮运动在国际上传播的重要影响因素。面对传播者的行为瓶颈问题,应从提高传播者的道德意识做起;面对传播媒介沦陷的问题,应注意龙狮运动传播媒介作用的正确发挥;面对中西方文化差异问题,应促进各国文化的融合;面对受众对龙狮运动的误解,应扩大对龙狮运动的正面宣传。深入解决龙狮运动传播的伦理困境,加快龙狮文化的国际传播脚步。  相似文献   

The application of inertial measurement units and functional principal component analysis to evaluate movement in the forward 3½ pike somersault springboard dive     

Cherie Walker  John Warmenhoven  Peter J. Sinclair 《Sports biomechanics / International Society of Biomechanics in Sports》2019,18(2):146-162

Based on technological and analytical advances, the capability to more accurately and finitely examine biomechanical and skill characteristics of movement has improved. The purpose of this study was to use Inertial Measurement Units (IMUs) and Functional Principal Components Analysis (fPCA) to examine the role of movement variability (assessed via angular velocity), on 2 divers (1 international level; 1 national) performing the forward 3½ pike somersault dive. Analysis of angular velocity curves during ive-flight identified 5 fPCs, accounting for 96.5% of movement variability. The national diver’s scatter plots and standard deviation of fPC scores illustrated larger magnitudes of angular velocity variability across dive flight. For fPC1 and fPC3, magnitudes of SD variability were 282.6 and 201.5, respectively. The international diver illustrated more consistent angular velocity profiles, with clustering of fPCs scores (e.g., fPC1 & 3 = SD’s of 75.2 & 68.0). To account for lower variability in the international diver, the ability to better coordinate movement sequences and functionally utilise feedback in response to initiation of the somersault position is highlighted. Overall, findings highlight how both IMUs and fPCA can more holistically and finitely examine the biomechanical and skill characteristics of movement sequences with the capability to inform athlete development.  相似文献   

Twenty-four-hour movement behaviours and fundamental movement skills in preschool children: A compositional and isotemporal substitution analysis     

Jéssica Gomes Mota  Cain Craig Truman Clark  Luís Lemos  Cézane Priscilla Reuter  Jorge Augusto Pinto Silva Mota 《Journal of sports sciences》2020,38(18):2071-2079

ABSTRACT

Studies that have analysed the association between the different movement behaviours and fundamental movement skills (FMS) have considered it in an independent manner, disregarding the compositional nature of 24-h movement behaviours (24-h MB). The aim of this study was to investigate the relationship between the 24-h MB and FMS in preschoolers using a compositional data analysis . Two hundred and four preschoolers (4.5 ± 0.8 years old; 101 boys) provided objectively assessed physical activity (PA) and sedentary behaviour (SB) data (Actigraph wGT3X), and FMS (TGMD-2). Sleep duration (SD) was reported by parents. Association of daily composition of movement behaviours with FMS was explored using compositional analysis and isotemporal substitution (R Core Team, 3.6.1). When considered as a 24-h MB composition (PA, SB and SD), adjusted for age, BMI and sex, the composition predicted locomotor (r² = 0.31), object control (r² = 0.19), and total motor score (r² = 0.35), respectively (all P < 0.001). Reallocation of time from light to moderate-to-vigorous PA was associated with greatest positive changes in total motor score. Achieving adequate balance between movement behaviours over the 24-h period, and its relationship with locomotor and object control skills should be considered and further investigated in early childhood.  相似文献   

问题解决的信息机制     

刘春年  娄策群 《情报科学》2004,22(7):878-880

阐述了信息科学中的一些基本问题，并利用信息科学的观点对问题解决理论进行了分析和总结，从而对问题解决概念、影响因子与问题解决过程中的信息活动模式和信息机制有了新的比较深入的认识。所得结论对问题解决方法研究和表象与环境相互作用的系统设计具有一定的参考价值。  相似文献   

"云娜"台风暴雨的Q矢量与螺旋度诊断分析   总被引：5，自引：0，他引：5  

朱健  沈晓玲 《科技通报》2007,23(1):22-27

利用非地转ω方程说明了Q矢量散度的物理意义,并通过计算台风“云娜”影响过程中的Q矢量散度和高低空螺旋度,分析了这两个物理量的演变特征及其与台风、台风暴雨的关系,指出低层等压面上Q矢量散度场及相对螺旋度对台风暴雨预报具有较好的参考价值。  相似文献   

From divergent evolution to witting cross-fertilisation: the need for more awareness of potential inter-discursive communication regarding students' extended historical writing     

James Edward Carroll 《Curriculum Journal》2017,28(4):504-523

History education stakeholders in England have consistently judged that some students find formal historical writing prohibitively difficult due to the demands of constructing an extended argument. While policy makers have agreed students need support in their historical writing, recurring themes in centralised resourcing have been wastage, incoordination and replication. Furthermore, two concurrent but largely disconnected discourses have developed and promulgated initiatives relevant to students’ extended historical writing: ‘genre theorists’ and the ‘history teachers’ extended writing movement’. Despite certain goals held in common participants in the two discourses have tended to talk past one another with concomitant issues in resourcing. Unsystematic, cross-fertilisation between the discourses has led to cycles of genre theory being collectively discovered, forgotten, and rediscovered by history teachers with knowledge not being built cumulatively. Furthermore both discourses have independently developed similar initiatives in a form of convergent evolution resulting in duplication of labour. Finally, divergent evolution has occurred where genre theorists have advocated approaches that are increasingly redundant for history teachers’ requirements. A more activist stance is therefore required to ensure meaningful inter-discursive communication between genre theorists and the history teachers’ ‘extended writing movement’ to ensure efficacy in developing approaches to improving students’ extended historical writing.  相似文献   

河道一维水沙运动的数值模拟     

黄平 《中山大学学报论丛》1993,(2)

研究河道一维水沙数学模型,提出了一个简单易行的计算方法.经实例验证,该模型具有计算程序容易实现,计算结果较合理的优点.且利用该模型,还可研究短期或长期的河流冲淤变化问题。  相似文献   

“五四”新文化运动对新世纪发展先进文化的启示     

方晓珍 《安庆师范学院学报(社会科学版)》2003,22(6):11-14

高扬民主科学旗帜与改造国民文化心态是五四新文化运动的基本主题。新世纪发展先进文化,最核心最关键的内容仍是民主与科学,肃清封建主义影响、改造国民文化心态的任务尚很艰巨;必须切实发扬民主,保障人权,完善法制,崇尚科学,健全人格,提高国民文化素质。  相似文献   

五四前后"言文合一"运动论略     

高建青 《山西师大学报(社会科学版)》2007,34(6):98-103

晚清至五四的白话文运动都肇始于批判“言文分离”，倡导“言文合一”。然而，文学语言本身内在的“陌生化”要求使其具有天然的偏离日常语言的趋势，同时“陌生化”使得“言文合一”运动无论在理论上还是实践上都遭遇了危机，“言文合一”只能是一个政治谎言。  相似文献   

留日学生在清末立宪运动中的作用初探     

胡宁 《伊犁教育学院学报》2004,17(2):19-22

20世纪初在中国爆发的立宪运动，是中国近代史上一次民主化运动，也是中国的先进分子试图以和平的手段从根本上挽救民族危机的一种有益的尝试。清末留日学生直接推动着中国立宪运动的进行。运动中，他们积极推动全国的立宪人士由分散走向联合，促成全国性立宪团体乃至政党的成立；以各种手段宣传立宪，进行宪政的启蒙；是推动全国规模的国会请愿运动的进行。虽然他们的尝试最终失败了，但是，此次运动对后世的影响极大，其历史作用不容抹煞。  相似文献