Ecological dynamics of continuous and categorical decision-making: The regatta start in sailing     

Duarte Araújo  Keith Davids  Ana Diniz  Luis Rocha  João Coelho Santos  Gonçalo Dias 《European Journal of Sport Science》2015,15(3):195-202

Abstract

Ecological dynamics of decision-making in the sport of sailing exemplifies emergent, conditionally coupled, co-adaptive behaviours. In this study, observation of the coupling dynamics of paired boats during competitive sailing showed that decision-making can be modelled as a self-sustained, co-adapting system of informationally coupled oscillators (boats). Bytracing the spatial–temporal displacements of the boats, time series analyses (autocorrelations, periodograms and running correlations) revealed that trajectories of match racing boats are coupled more than 88% of the time during a pre-start race, via continuous, competing co-adaptions between boats. Results showed that both the continuously selected trajectories of the sailors (12 years of age) and their categorical starting point locations were examples of emergent decisions. In this dynamical conception of decision-making behaviours, strategic positioning (categorical) and continuous displacement of a boat over the course in match-race sailing emerged as a function of interacting task, personal and environmental constraints. Results suggest how key interacting constraints could be manipulated in practice to enhance sailors' perceptual attunement to them in competition.  相似文献   

Crossed looks: globalisations and curriculum in Guinea-Bissau     

Rui da Silva  Júlio Gonçalves dos Santos  José Augusto Pacheco 《Compare》2015,45(6):978-999

This article focuses on education in Guinea-Bissau in the context of globalisations, examining the concept of globalisation and its relation to education and the curriculum. It focuses on the relatively neglected area of national education policies in Guinea-Bissau, comparing differences and common points of interference/influence of multilateral (international and regional) and bilateral organisations in these policies. Data collection was based on content analysis of a corpus of documents – the Education Act, the document of Portuguese Cooperation Programme, the Education Sector Policy Paper, the Education for All National Plan of Action, and Policy n. 3/2007/CM/UEMOA – and field notes collected from 2009 to 2012. The article argues that there is a tendency for the homogenisation of curriculum policies, at least at the macro-level, due to the different types of pressures coming from international/regional organisations.  相似文献   

互联网时代大学生网络政治参与探微     

沈素珍  笪文秀 《沧州师专学报》2014,(4)

随着互联网时代的到来,网络政治参与成为当今民主政治建设的一种新形式与新途径。通过对安徽省5所本科院校的大学生网络政治参与现状的调查,发现大多数大学生关心国家政治,愿意参政议政,大学生网络政治参与已成为民主政治建设的一支重要力量。受网络监管措施不力、自身政治素质不成熟等因素影响,大学生容易被网络上错误舆论诱导,导致盲从行为和群体极化现象。需要采取措施,加强网络监管,提高政府有关部门对大学生网络政治参与行为的反馈效率,以提高大学生政治参与的效能感,激发大学生更高的网络政治参与热情,使其积极发挥"正能量",为推进我国的社会主义民主政治建设作出重要贡献。  相似文献   

检验医学科技期刊新媒体内容需求现况及应对策略研究     

方琪  徐少卿  笪文武  唐强虎  欧欣娴  徐佳忆  王明丰 《编辑学报》2021,33(5):558-562

如何打造科技期刊新媒体内容是每一个科技期刊不得不面临的重要选题.本文基于检验医学新媒体用户对内容需求现状的分析,提出应对策略.根据新媒体用户对内容需求的特点,在原创作者团队的构建、内容设计及内容合作模式上进行了 一系列探索,且取得不错的效果.发现传统科技期刊与新媒体的思维模式及关注人群截然不同,故新媒体的内容不能简单照搬科技期刊的原有内容,唯有以用户的实际需求为导向,深入行业进行内容创作,才能让科技期刊的新媒体不仅能服务期刊,还能与期刊实现互补,差异发展;同时让科技期刊新媒体呈现持久的生命力.  相似文献   

Impact of grade retention and school engagement on student intentions to enrol in higher education in Portugal     

Natalie Nóbrega Santos  Vera Monteiro  Carolina Carvalho 《European Journal of Education》2023,58(1):130-150

Grade retention and inequalities that derive from grade retention can influence student school trajectories and careers. Grade retention can discourage students from education, and increase school failure and dropout. This study explored the relationship between grade retention and student intentions to enrol in higher education. We also studied the role of school identification and behavioural engagement in this relationship. The analysis is based on a sample of 1,089 students (grades 6 to 10) from Portugal, one of the European countries with the highest rates of grade retention. We employed multilevel probit regression modelling with random intercept and fixed slopes to explore both the individual and school level effects of grade retention. The analyses showed that retained students had a lower probability of intent to enrol in higher education and that there was a contextual effect of the number of retained students in the school, on students' probability of intent to enrol in higher education. This association was partially explained at the individual level by students' school identification. Retained students presented lower levels of school identification, which in turn results in lower probabilities of enrolling in higher education. Student behavioural engagement was not associated with grade retention nor student intentions. Our findings suggest the need for interventions that foster students' school identification to overcome the adverse effects of grade retention.  相似文献   

零售商主导的闭环供应链效益分析   总被引：1，自引：1，他引：0  

张福安  达庆利  孙浩 《软科学》2011,25(6):45-48,53

研究了零售商主导的闭环供应链回收渠道选择及定价决策问题。分析了集中决策模式及三种分散回收模式下的最优回收率、定价决策与系统效益。研究结果表明:在零售商主导的市场结构下,当制造商选择直接回收时,闭环供应链具有较低的销售价格和较高的回收率,制造商利润、零售商利润及系统总利润均最大,对消费者及整个社会更有利。  相似文献   

上海市海洋体育产业发展的SWOT分析          下载免费PDF全文

笪恺  杜海鹏 《体育科研》2013,(4):17-21

运用文献资料法、访谈法、SWOT分析法和问卷调查法,在分析上海海洋体育产业发展现状的基础上,对上海发展海洋体育产业的优势、劣势、机遇和竞争等进行研究,并提出发展上海海洋体育休闲产业的对策。  相似文献   

Identifying the information management process and knowledge creation in technology-based companies: a Brazilian comparative case study     

Vick  Thais Elaine  Nagano  Marcelo Seido  Santos  Fernando César Almada 《知识管理研究与实践》2013,11(3):278-287

Knowledge Management Research & Practice - Information and knowledge have been cited over the last two decades as competitive advantage tools. Recently, the use of them has been discussed to...  相似文献   

Workers with disabilities in sheltered employment centres: a training needs analysis     

Pedro Jurado de los Santos 《International Journal of Inclusive Education》2016,20(7):756-769

The work presented is part of a study that the research group CIFO (Research Team in Training for the Labour Market, Autonomous University of Barcelona, Barcelona) has carried out, relating to the training needs analysis and basic competences and skills in the environment of sheltered employment centres (SECs) in Catalonia (this study was undertaken in collaboration with the Coordination of Workshops for People with Mental Disabilities in Catalonia). The analysis and assessment of needs is useful from the perspective of training, as a starting point for planning adapted to the reality of disabled workers in SECs. To do this, various elements such as skills, knowledge and attitudes of individual and social nature have been considered from a systemic approach. By placing ourselves in clearly defined contexts (SECs), we bear in mind the characteristics of workers, the features of the job context, the types of activities performed, the skills related to work activities carried out, the definition of competence profiles required on the basis of the essential skills and the real training needs, through the characteristics of workers and those skills related to the labour activities that are performed as well as the needs for training perceived by workers. Identifying training needs in relation to basic skills and job requirements allows us to meet the challenge, as a trend that supports a competence basis for any worker, of raising general actions that may govern and underlie the training proposals, yet without undermining the specific competences. The importance acquired by what workers themselves have considered about their positioning is understood from the standpoint of its validity, so as to assume conclusions through triangulation processes.  相似文献   

"抢花炮"攻防对抗规律与运动训练研究     

达桂邕 《柳州师专学报》2007,22(1):131-133

阐述了"抢花炮" 比赛攻防对抗的特点,分析了攻防对抗过程的一般规律.身体接触是"抢花炮"对抗的主要方式,对抗的规律最为复杂,成为运动员训练重点解决的问题.  相似文献