Genomics of adaptation and acclimation: from field to lab and back     

Scott V Edwards 《国家科学评论(英文版)》2020,7(1):128

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The effects of extrinsic reinforcement on intrinsic motivation     

Richard A. Blocker  R. P. Edwards 《Psychology in the schools》1982,19(2):260-268

In this paper, the role of extrinsic reinforcement in intrinsic motivation is discussed in terms of Deci's cognitive attribution theory. The competing response hypothesis and the frustration hypothesis are presented as alternative modes of analysis. “Undermining” is the phenomenon proposed by the cognitive attribution theorists that accounts for reported decrements in intrinsically motivated behaviors following external rewards. The literature regarding undermining in token economy research is critically evaluated. The author concludes that: (a) Cognitive attribution theory lacks parsimony, in that extant reinforcement analysis can account for undermining with equal facility. (b) Undermining is of little significance as a concept, due to its elusive and transient impact on operant behavior.  相似文献   

Making better performance easier with multisource assessment     

Mark R. Edwards  Ann J. Ewen 《Performance Improvement》1995,34(2):20-22

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Hidden in the Mix: The African American Presence in Country Music Diane Pecknold,Editor. Durham,NC: Duke University Press, 2013.     

Leigh H. Edwards 《Journal of American culture (Malden, Mass. : 2003)》2014,37(3):358-359

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Short-term reliability of inflammatory mediators and response to exercise in the heat     

Joshua H. Guy  Andrew M. Edwards  Catherine M. Miller  Glen B. Deakin  David B. Pyne 《Journal of sports sciences》2017,35(16):1622-1628

Prospective application of serum cytokines, lipopolysaccharide (LPS), and heat shock proteins (eHSPs) requires reliable measurement of these biomarkers that can signify exercise-induced heat stress in hot conditions. To accomplish this, both short-term (7 day) reliability (at rest, n = 12) and the acute responsiveness of each biomarker to exercise in the heat (pre and post 60-min cycling, 34.5°C and 70% RH, n = 20) were evaluated. Serum was analysed for the concentration of C-reactive protein (CRP), interleukin-6 (IL-6), heat shock protein 72 (eHSP72), immunoglobulin M (IgM) and LPS. Test–retest reliability was determined as the coefficient of variation (CV). Biomarkers with the least short-term within-participant variation were IL-6 (19%, ±20%; CV, ±95% confidence limits (CL)) and LPS (23%, ±13%). Greater variability was observed for IgM, eHSP72 and CRP (CV range 28–38%). IL-6 exhibited the largest increase in response to acute exercise (95%, ±11%, P = < 0.001) and although CRP had a modest CV (12%, ±7%), it increased substantially post-exercise (P = 0.02, ES; 0.78). In contrast, eHSP72 and LPS exhibited trivial changes post-exercise. It appears variation of common inflammatory markers after exercise in the heat is not always discernible from short-term (weekly) variation.  相似文献   

The efflux of gases through small orifices     

Edgar Buckingham  Junius David Edwards 《Journal of The Franklin Institute》1920,189(2):244

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What stories do I tell now? New times and new narratives for the adult educator     

Richard Edwards  Robin Usher 《International Journal of Lifelong Education》2013,32(3):216-229

Globally, the world of adult education has been much transformed in recent years. While there has been an expansion in the provision made available to adults, the profile of that provision has shifted with a greater emphasis placed on work‐related and certificated education and training, and an increased diversity in learning settings. This has led to a sense of crisis over the meaning of adult education as a specific form of provision and what it means to be an adult educator.

This article examines the ways in which these changes have found expression in the narratives through which adult educators construct their practices and experiences as meaningful. We argue that there is an interaction between the impact of contestation and change in the field of adult education and learning, its narrative or story‐telling practices and the processes by which the identities of adult educators are formed. We examine the significance of this interaction by drawing on three inter‐related themes‐‐the so‐called turn to textuality, the changes taking place in the economy and the organisation of work including the work of adult educators, and contemporary debates over (post) modern identities. In this way, we demonstrate the significance of new theoretical perspectives in providing insights into the contemporary condition of adult educators.  相似文献   

Flexibility,reflexivity and reflection in the contemporary workplace     

Richard Edwards 《International Journal of Lifelong Education》2013,32(6):377-388

Within contemporary changes there is an increased reflexivity wherein social formations, organizations and individuals are required to change, to learn to change, and change to learn. Lifelong learning has become central to education and economic policy, with an increased emphasis on individuals, workplaces and providers of learning opportunities becoming more flexible. This article explores some of the evidence for the emergence of different workplace practices and identities in response to and as part of the development of reflexive modernization and the significance of pedagogies of reflection in these changes. It suggests that pedagogies of reflection are integral to reflexive modernization, flexible lifelong learners and changes in the workplace.  相似文献   

Radiation payout: the US government settles out of court over experiments on cancer patients     

Edwards R 《New scientist (1971)》1999,162(2187):12

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The stress of travel     

Waterhouse J  Reilly T  Edwards B 《Journal of sports sciences》2004,22(10):946-65; discussion 965-6

International travel is an essential part of the life of elite athletes, both for competition and training. It is also becoming increasingly common among recreational sportspersons. Long-distance travel is associated with a group of transient negative effects, collectively referred to as 'travel fatigue', which result from anxiety about the journey, the change to an individual's daily routine, and dehydration due to time spent in the dry air of the aircraft cabin. Travel fatigue lasts for only a day or so, but for those who fly across several time zones, there are also the longer-lasting difficulties associated with 'jet lag'. The problems of jet lag can last for over a week if the flight crosses 10 time zones or more, and they can reduce performance and the motivation to train effectively. Knowledge of the properties of the body clock enables the cause of the difficulties to be understood (an unadjusted body clock), and forms the basis of using light in the new time zone to promote adjustment of the body clock. Sleep loss and its effects are important components of jet lag, and attempts to promote sleep by the use of melatonin and other hypnotics are also relevant. Sleep loss is also found in those who undertake challenges that involve long periods where the normal consolidated sleep of 8 h length is not possible. Advice on sleep regimens in such circumstances is given.  相似文献