Alchemy and the history of science. Introduction     

Moran BT 《Isis; an international review devoted to the history of science and its cultural influences》2011,102(2):300-304

Alchemy is part of the cultural experience of early modern Europe and yet has had to overcome problems of demarcation to be considered relevant to the history of science. This essay considers historiographical and methodological issues that have affected the gradual demarginalization of alchemy among attempts to explain, and find things out about, nature. As an area of historical study, alchemy relates to the history of science as part of an ensemble of practices that explored the natural world through natural philosophy and speculative traditions and by functioning as a nexus of social and intellectual life.  相似文献   

Analysis of the 5 iron golf swing when hitting for maximum distance     

Healy A  Moran KA  Dickson J  Hurley C  Smeaton AF  O'Connor NE  Kelly P  Haahr M  Chockalingam N 《Journal of sports sciences》2011,29(10):1079-1088

Most previous research on golf swing mechanics has focused on the driver club. The aim of this study was to identify the kinematic factors that contribute to greater hitting distance when using the 5 iron club. Three-dimensional marker coordinate data were collected (250 Hz) to calculate joint kinematics at eight key swing events, while a swing analyser measured club swing and ball launch characteristics. Thirty male participants were assigned to one of two groups, based on their ball launch speed (high: 52.9 ± 2.1 m · s(-1); low: 39.9 ± 5.2 m · s(-1)). Statistical analyses were used to identify variables that differed significantly between the two groups. Results showed significant differences were evident between the two groups for club face impact point and a number of joint angles and angular velocities, with greater shoulder flexion and less left shoulder internal rotation in the backswing, greater extension angular velocity in both shoulders at early downswing, greater left shoulder adduction angular velocity at ball contact, greater hip joint movement and X Factor angle during the downswing, and greater left elbow extension early in the downswing appearing to contribute to greater hitting distance with the 5 iron club.  相似文献   

The effects of conscious processing on golf putting proficiency and kinematics     

Toner J  Moran A 《Journal of sports sciences》2011,29(7):673-683

Researchers have suggested that skill performance deteriorates when people try to exert conscious control over automatic actions. Unfortunately, little is known about the effects of different types of conscious processing on skilled performance by expert athletes. We conducted two experiments to address this issue. Experiment 1 investigated the influence of a specific form of conscious control (making technical adjustments to a stroke) on the putting skills of expert golfers. The expert golfers maintained putting proficiency (i.e. number of putts holed) when making technical adjustments. However, this form of conscious processing altered the timing and consistency of golfers' putting strokes. Experiment 2 compared the influence of technical adjustments and conscious monitoring (paying attention to the execution of the stroke) on expert golfers' putting skills. Technical adjustments had no disruptive influence on expert golfers' putting proficiency but did reduce the consistency of their strokes. However, conscious monitoring was found to impair putting proficiency. The implications of the work for theory and future work are discussed.  相似文献   

Viscoelastic impact characterisation of solid sports balls used in the Irish sport of Hurling     

Fiachra Collins  Dermot Brabazon  Kieran Moran 《Sports Engineering》2011,14(1):15-25

In recent years, variability in behaviour of the sliotar, a small leather-bound ball used in the Irish sport of hurling, has become evident in championship matches. The inconsistency in performance was attributed to the range of constructions and material compositions of currently approved ball types. With a view to adopting a standard core, a new methodology has been commissioned to assess the dynamic impact behaviour of approved sliotar cores. In this paper, the relationship between the dynamic stiffness and the coefficient of restitution is presented with regard to material properties, ball construction and viscoelastic strain and strain-rate dependencies. The modern polymer ball types were shown to exhibit strain-rate sensitivity, while the performance of the traditional multi-compositional ball types exhibited lesser strain-rate dependence. The traditional balls types were shown to be up to 2.5 times stiffer than the modern ball types, with this finding having implications for ball energy dissipation.  相似文献   

Reflecting on professional practice,with special reference to the use of the diary in higher education     

Anne Moran  John Dallat 《Irish Educational Studies》2013,32(1):171-183

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Turning Up The Mould, In Search Of The Gold     

William R. Newman  Pamela H. Smith  Bruce T. Moran 《Metascience》2006,15(3):471-489

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From School Counselor to Counselor Educator: A Phenomenological Study     

Amy Milsom  Kristen Moran 《Counselor Education & Supervision》2015,54(3):203-220

Through a phenomenological study, the experiences of 8 early‐career school counselor educators who entered academia directly from positions as P–12 school counselors were examined. Results revealed that the participants experienced numerous challenges and supports related to their transition. Recommendations for counselor educators, doctoral students, and new faculty are provided.  相似文献   

BIBLICAL KNOWLEDGE AND MORAL JUDGMENTS     

Hugh Moran 《Religious education (Chicago, Ill.)》2013,108(2):171-172

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America Town: Building the Outposts of Empire by M.L. Gillem     

Joseph J. Moran 《Journal of American culture (Malden, Mass. : 2003)》2008,31(2):207-207

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Global Pentecostalism: The New Face of Christian Social Engagement by D.E. Miller and T. Yamamori     

Joseph J. Moran 《Journal of American culture (Malden, Mass. : 2003)》2008,31(2):223-224

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