Education Is Ecstasy: A Fanciful Excursion Into Time     

Tom Miller 《Clearing house (Menasha, Wis.)》2013,86(7):316-318

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A review of tennis racket performance parameters     

Tom Allen  Simon Choppin  Duane Knudson 《Sports Engineering》2016,19(1):1-11

The application of advanced engineering to tennis racket design has influenced the nature of the sport. As a result, the International Tennis Federation has established rules to limit performance, with the aim of protecting the nature of the game. This paper illustrates how changes to the racket affect the player-racket system. The review integrates engineering and biomechanical issues related to tennis racket performance, covering the biomechanical characteristics of tennis strokes, tennis racket performance, the effect of racket parameters on ball rebound and biomechanical interactions. Racket properties influence the rebound of the ball. Ball rebound speed increases with frame stiffness and as string tension decreases. Reducing inter-string contacting forces increases rebound topspin. Historical trends and predictive modelling indicate swingweights of around 0.030–0.035 kg/m² are best for high ball speed and accuracy. To fully understand the effect of their design changes, engineers should use impact conditions in their experiments, or models, which reflect those of actual tennis strokes. Sports engineers, therefore, benefit from working closely with biomechanists to ensure realistic impact conditions.  相似文献   

The development of higher education in the UK since 1945     

Tom Bourner 《Action Learning: Research and Practice》2011,8(3):285-289

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Learning to make meaning without making “sense”     

Tom Reinartz  Brad Hokanson 《TechTrends》2001,45(4):28-30

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The effect of adaptivity on the reliability coefficient in adaptive comparative judgement     

Tom Bramley  Sylvia Vitello 《Assessment in Education: Principles, Policy & Practice》2019,26(1):43-58

Comparative Judgement (CJ) is an increasingly widely investigated method in assessment for creating a scale, for example of the quality of essays. One area that has attracted attention in CJ studies is the optimisation of the selection of pairs of objects for judgement. One approach is known as adaptive comparative judgement (ACJ). It has been claimed in the literature that ACJ produces very high reliability, often higher than can be obtained by conventional marking. Bramley showed by simulation that adaptivity can substantially inflate the apparent reliability in ACJ. The empirical study described here compared an adaptive with a non-adaptive CJ study using GCSE English essays. An all-play-all set of comparisons of a subset of the essays allowed the extent of scale inflation to be quantified: the reported adaptive reliability was 0.97 whereas the deflated value was 0.84. The value from the non-adaptive study was 0.72. However, the scale from the non-adaptive study correlated slightly higher with external variables, suggesting the non-adaptive study was no less valid than the adaptive one.  相似文献   

Books and articles of academic interest     

Antonio Gómez Skarmeta  Pedro García López  Jesús Egea Payá  José Meseguer Navarro  Tomás Jiménez García 《Academic Questions》1994,8(1):91-92

Books and articles of academic interest  相似文献   

Transforming engagement: a case study of building intrinsic motivation in a child with autism          下载免费PDF全文

Jackie Dearden  Anne Emerson  Tom Lewis  Rebecca Papp 《British Journal of Special Education》2017,44(1):8-25

This longitudinal case study of a 10‐year‐old girl with autism and severe communication impairment measures the impact of the MORE (Means, Opportunities, Reasons and Expectations) approach to enhancing engagement and communication. Through detailed observation of video data over a period of 28 months, engagement behaviours including interaction with adults and following adult directions increased, while resistant behaviours such as kicking, hitting and pushing adults away decreased. Fluctuation between different ‘states’ demonstrated that the frequency and duration of engagement was influenced by the MORE approach and an emphasis on developing intrinsic motivation. In order to enable further efficacy research, core features of the intervention and the changes in engagement over time are described.  相似文献   

A Methylome‐Wide Association Study of Trajectories of Oppositional Defiant Behaviors and Biological Overlap With Attention Deficit Hyperactivity Disorder          下载免费PDF全文

Edward D. Barker  Esther Walton  Charlotte A.M. Cecil  Richard Rowe  Sara R. Jaffee  Barbara Maughan  Thomas G. O'Connor  Argyris Stringaris  Alan J. Meehan  Wendy McArdle  Caroline L. Relton  Tom R. Gaunt 《Child development》2018,89(5):1839-1855

In 671 mother–child (49% male) pairs from an epidemiological birth cohort, we investigated (a) prospective associations between DNA methylation (at birth) and trajectories (ages 7–13) of oppositional defiant disorder (ODD), and the ODD subdimensions of irritable and headstrong; (b) common biological pathways, indexed by DNA methylation, between ODD trajectories and attention deficit hyperactivity disorder (ADHD); (c) genetic influence on DNA methylation; and (d) prenatal risk exposure associations. Methylome‐wide significant associations were identified for the ODD and headstrong, but not for irritable. Overlap analysis indicated biological correlates between ODD, headstrong, and ADHD. DNA methylation in ODD and headstrong was (to a degree) genetically influenced. DNA methylation associated with prenatal risk exposures of maternal anxiety (headstrong) and cigarette smoking (ODD and headstrong).  相似文献   

Investigation of potential gender bias in the peer review system at Reproduction     

Marie Biolková  Tom Moore  Karen Schindler  Karl Swann  Andy Vail  Lindsay Flook  Helen Dick  Greg Fitzharris  Christopher A. Price  Norah Spears 《Learned Publishing》2023,36(1):25-30

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Ark of civilisation: refugee scholars and Oxford University, 1930–1945, edited by Sally Crawford,Katharina Ulmschneider,and Jaś Elsner     

Tomás Irish 《History of education》2019,48(3):424-426

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