Orchestrating children’s action: an in-depth multimodal analysis of child-educator interactions in one Italian early childhood education setting     

Fatigante  Marilena  Antici  Lilia  Zucchermaglio  Cristina  Fantasia  Valentina  Alby  Francesca 《European Journal of Psychology of Education - EJPE》2022,37(3):649-679

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America's Cup yacht racing: Race analysis and physical characteristics of the athletes     

Vernon Neville  Julian Calefato  Cristina Pérez-Encinas  Enrique Rodilla-Sala  Sergio Rada-Ruiz  Paul Dorochenko 《Journal of sports sciences》2013,31(9):915-923

Abstract

The America's Cup is the oldest competing trophy in sport, yet little is known of the nature and intensity of racing or the physical characteristics of the athletes. In this study, aspects of the physical demands of America's Cup yacht racing were analysed, including the intensity of exercise and activity pattern of “grinding”. Anthropometric data were collected from 92 professional male America's Cup sailors, and fitness data from a top-4 and a lower-7 ranking team during the 32nd America's Cup. Over the 135 races, mean race duration was 82 min (s = 9), with 20 tacks (s = 10) and 8 gybes (s = 3) per race. Grinding bouts were 5.5 s (s = 5.4; range: 2.2–66.3) long, with 143 exercise bouts per race and an exercise-to-rest ratio of 1:6. Mean and peak heart rate was 64% and 92% of maximum for all positions, with bowmen highest (71% and 96%). Grinders were taller, heavier, and stronger than all other positions. Body fat was similar between positions (13%, s = 4). The higher-standard team was stronger and had greater strength endurance, which probably contributed to their quicker manoeuvres. Intensity of exercise was dependent on the similarity of competing boats and the role of the athlete. The short duration and intermittent nature of grinding is indicative of predominantly anaerobic energy provision.  相似文献   

Learning to work or working to learn? A university–work transition case study     

Cristina Zucchermaglio  Francesca Alby 《Learning Inquiry》2009,3(2):79-95

The paper analyses the case of an innovative project on the transition between university and work. The project examined sustains two social dimensions of learning: education as a shared social institution in which university studies and work can be productively interconnected and alternated in order to enhance learning, and learning as identity projects and significant participation in situated activities. Working actively at the boundaries of communities provides relevant learning ‘loci’ for both students participating in the project and the communities involved (university and firms). Implications for the design of complex activity systems which take account of the learning value of work are discussed.  相似文献   

The point of view of firms in Minas Gerais about the contribution of universities and research institutes to R&D activities     

Catari Vilela Chaves  Soraia Schultz Martins Carvalho  Leandro Alves Silva  Tânia Cristina Teixeira  Patrícia Bernardes 《Research Policy》2012,41(9):1683-1695

The purpose of this paper is to analyze the interactions between firms, universities and research institutes based in Minas Gerais, Brazil. The theoretical standpoint is the innovation system of developing countries. Multivariate cluster analysis is used, more specifically, the Grade of Membership method, to group firms with similar characteristics and evaluate their pattern of interaction with universities and research institutes. The main results show that the highest rates of interaction are found among firms that manufacture chemical products, cellulose, paper and paper products, followed by those engaged in the extraction of metallic and non-metallic minerals.  相似文献   

Gestures as semiotic resources in the mathematics classroom     

Ferdinando Arzarello  Domingo Paola  Ornella Robutti  Cristina Sabena 《Educational Studies in Mathematics》2009,70(2):97-109

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Surf camp experiences     

Ana Brochado  Oana Stoleriu  Cristina Lupu 《Journal of Sport Tourism》2018,22(1):21-41

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Race walking gait and its influence on race walking economy in world-class race walkers     

Josu Gomez-Ezeiza  Jon Torres-Unda  Nicholas Tam  Jon Irazusta  Cristina Granados 《Journal of sports sciences》2018,36(19):2235-2241

Aim: The aim of this study was to determine the relationships between biomechanical parameters of the gait cycle and race walking economy in world-class Olympic race walkers.

Methods: Twenty-One world-class race walkers possessing the Olympic qualifying standard participated in this study. Participants completed an incremental race walking test starting at 10 km·h^?1, where race walking economy (ml·kg^?1·km^?1) and spatiotemporal gait variables were analysed at different speeds.

Results: 20-km race walking performance was related to race walking economy, being the fastest race walkers those displaying reduced oxygen cost at a given speed (R = 0.760, p < 0.001). Longer ground contact times, shorter flight times, longer midstance sub-phase and shorter propulsive sub-phase during stance were related to a better race walking economy (moderate effect, p < 0.05).

Conclusion: According to the results of this study, the fastest race walkers were more economi cal than the lesser performers. Similarly, shorter flight times are associated with a more efficient race walking economy. Coaches and race walkers should avoid modifying their race walking style by increasing flight times, as it may not only impair economy, but also lead to disqualification.  相似文献   

Consequences of Individual Differences in Children's Formal Understanding of Mathematical Equivalence     

Nicole M. McNeil  Caroline Byrd Hornburg  Brianna L. Devlin  Cristina Carrazza  Mary O. McKeever 《Child development》2019,90(3):940-956

Experts claim that individual differences in children's formal understanding of mathematical equivalence have consequences for mathematics achievement; however, evidence is lacking. A prospective, longitudinal study was conducted with a diverse sample of 112 children from a midsized city in the Midwestern United States (M_age [second grade] = 8:1). As hypothesized, understanding of mathematical equivalence in second grade predicted mathematics achievement in third grade, even after controlling for second-grade mathematics achievement, IQ, gender, and socioeconomic status. Most children exhibited poor understanding of mathematical equivalence, but results provide clues about which children are on the path to constructing an understanding and which may need extra support to overcome their misconceptions. Findings suggest that mathematical equivalence may deserve more attention from educators.  相似文献   

Middle managers’ experience of policy implementation and mediation in the context of the Scottish quality enhancement framework     

Murray Saunders  Cristina Sin 《Assessment & Evaluation in Higher Education》2015,40(1):135-150

This paper analyses how middle managers perform and experience their role in enacting policy in Scottish higher education institutions. The policy focus is the quality enhancement framework (QEF) for learning and teaching in higher education, which was launched in 2003. The data-set was collected between 2008 and 2010, during the evaluation of the QEF by means of focus groups with middle managers at nine Scottish institutions. The metaphor of a policy implementation staircase helps to situate middle managers’ position in enactment, and analyse their experience of the role. Despite the values of collegiality and ownership upheld by the QEF, middle managers’ accounts of their practices reveal that their position at the interface between university management and core academic activities continues to be a delicate one, marked by contradictory allegiances to institutional strategies and the concerns of academic colleagues. While emphasising middle managers’ pivotal role in the implementation of the QEF policy, the data paradoxically suggest that the systemic positioning of middle managers is more influential in shaping their role of mediation than the values of collegiality and ownership promoted by this enhancement approach to quality specific to Scotland.  相似文献   

Toward a society where everyone is always studying: access at an elite Chilean research university     

Stephen T. Sadlier  María Cristina Arancibia 《International journal of qualitative studies in education》2015,28(9):1049-1064

After the 1973 coup, Chile swung from a centralized state to a dictatorial decentralized one where education turned from a public to a private good. Since the 1990 restoration of democracy, market-based trends have endured, involving the fomentation of a knowledge society, one where everyone is always studying. The present study, drawn from an action research project to develop English for academic purposes at a top-ranked Chilean university, considers how paradigmatically functionalist research can lead to critical openings for research at an elite Global South university marshalled into public service to promote innovation. As the university in the study fosters innovation to propel Chile from a raw materials to a knowledge-based economy, two points aid our entrée into elite site investigation: the university’s internationalization policy and its focus on graduate students’ getting their work in high-impact journals and conferences. Accessibility remains a challenge for garnering substantive qualitative data at an elite Chilean university, though we suggest that a policy movement toward a knowledge society yields possibilities for researchers able to carry out methodologies with both functionalist and critical aims.  相似文献