Letter from the Editor-in-Chief     

Rob Kling 《The Information Society》2002,18(3):147-149

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Changes in kinematics and arm–leg coordination during a 100-m breaststroke swim     

Samuel W. Oxford  Rob S. James  Michael J. Price  Carl J. Payton  Michael J. Duncan 《Journal of sports sciences》2017,35(16):1658-1665

The purpose of this study was to compare arm–leg coordination and kinematics during 100 m breaststroke in 26 (8 female; 18 male) specialist breaststroke swimmers. Laps were recorded using three 50-Hz underwater cameras. Heart rate and blood lactate were measured pre- and post-swim. Arm–leg coordination was defined using coordination phases describing continuity between recovery and propulsive phases of upper and lower limbs: coordination phase 1 (time between end of leg kick and start of the arm pull phases); and coordination phase 2 (time between end of arm pull and start of leg kick phases). Duration of stroke phases, coordination phases, swim velocity, stroke length (SL), stroke rate (SR) and stroke index (SI) were analysed during the last three strokes of each lap that were unaffected by turning or finishing. Significant changes in velocity, SI and SL (P < 0.05) were found between laps. Both sexes showed significant increase (P < 0.05) in heart rate and blood lactate pre- to post-swim. Males had significantly (P < 0.01) faster swim velocities resulting from longer SLs (P = 0.016) with no difference in SR (P = 0.064). Sex differences in kinematic parameters can be explained by anthropometric differences providing males with increased propelling efficiency.  相似文献   

Paul Valentine, 1951–2011     

Richard Osborn  Shane Godbolt 《Health information and libraries journal》2011,28(3):242-243

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Identifying at‐risk students in videoconferencing and web‐based distance education     

Viola Osborn 《The American journal of distance education》2013,27(1):41-54

Abstract

Based on the multivariate framework of student attrition developed by leading researchers in the field of distance education and instructional technology, this study centers on a method of assessing the ability of a student to complete a distance learning course. The focus of the investigation is construction and validation of a brief survey instrument to identify at‐risk students enrolled in Web‐based and videoconferencing courses.  相似文献   

A Survey of Adolescent Worry In Northern Ireland     

Mary Gallagher  Rob Millar 《Pastoral Care in Education》2013,31(2):26-32

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Globalization,innovation, and the declining significance of qualifications led social and economic change     

Rob Strathdee 《教育政策杂志》2013,28(4):437-456

This paper raises questions regarding the ability of new qualifications frameworks and assessment systems to promote innovation and social inclusion. Of interest in this paper is the centrality of tacit skill in promoting innovation. Tacit skill is central to innovation, although its positional character is not well understood by policy‐makers. It is argued that the relationship between tacit skill and innovation throws doubt on the relationship between assessment led change, and on the social and economic objectives of New Labour (in the UK) and the Labour‐led Coalition (in New Zealand). This paper also reviews recent changes in the funding of higher education in New Zealand and in the UK, and explores the impact of economic change on the competition for advancement through education. This paper concludes by arguing that innovation and social inclusion are not compatible.  相似文献   

Desalination of masonry structures: Fine tuning of pore size distribution of poultices to substrate properties     

Barbara Lubelli  Rob P.J. van Hees 《Journal of Cultural Heritage》2010,11(1):10-18

Desalination is a relatively new intervention in the field of conservation of architectural heritage. Especially the desalination of immovable objects, such as masonry structures, is still a trial-error practice. In the field, different desalination materials and methods are used, sometimes with unsatisfactory results. Better understanding of the desalination process is needed in order to support the conservator with clear guidelines for choosing a suitable desalination material and method. The research presented in this paper constitutes the first step towards the development of a modular system of poultices, which can be adapted, i.e. fine-tuned to different types of substrates. Starting point is to make use of advection, i.e. the transport of salt ions with water flow. This transport mechanism is faster than diffusion and the application on immovable objects is relatively easy. In order to optimize salt extraction, a poultice working by advection should have smaller pores than the substrate. Starting from this principle the pore sizes of different desalination materials (sand, cellulose, kaolin and bentonite) mixed in different proportions, have been measured. Interesting results were obtained, showing that the desalination materials commonly used in the field are often not the most suitable ones. On the basis of the results, recipes for poultices, adapted to a specific substrate, can be formulated.  相似文献   

Korean cinema on the road to globalization: tracking global/local dynamics,or why Im Kwon-Taek is not Ang Lee     

Rob Wilson 《Inter-Asia Cultural Studies》2013,14(2):307-318

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Rejoinder to Ohlsen     

Michael E. Osborn 《Counselor Education & Supervision》1972,12(2):158-158

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The Role of Emotion Regulation in the Social Problems of Boys With Developmental Delays     

Beverly J. Wilson  Siobhan Fernandes-Richards  Cyrena Aarskog  Teresa Osborn  Darla Capetillo 《Early education and development》2007,18(2):201-222

Parents and teachers reported that 6- to 8-year-old boys with developmental delays were less able to regulate their emotions than nondelayed boys matched on chronological age. Compared to nondelayed boys, boys with developmental delays had more social problems, which persisted and increased over a 3-year period. Children's ability to regulate their emotions explained significant variance in their social problems after controlling for their developmental status. In addition, emotion regulation partially mediated the relationship between children's developmental status and their social problems. These results suggest that emotion regulation plays a significant role in the social problems of boys with developmental delays. Furthermore, increasing the emotional competence of these children may facilitate their peer relationships and, ultimately, their school adjustment.  相似文献