5,318 research outputs found

    Spin Anisotropy and Slow Dynamics in Spin Glasses

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    We report on an extensive study of the influence of spin anisotropy on spin glass aging dynamics. New temperature cycle experiments allow us to compare quantitatively the memory effect in four Heisenberg spin glasses with various degrees of random anisotropy and one Ising spin glass. The sharpness of the memory effect appears to decrease continuously with the spin anisotropy. Besides, the spin glass coherence length is determined by magnetic field change experiments for the first time in the Ising sample. For three representative samples, from Heisenberg to Ising spin glasses, we can consistently account for both sets of experiments (temperature cycle and magnetic field change) using a single expression for the growth of the coherence length with time.Comment: 4 pages and 4 figures - Service de Physique de l'Etat Condense CNRS URA 2464), DSM/DRECAM, CEA Saclay, Franc

    THE EXTRATERRITORIAL EFFECT OF PROBATE DECREES

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    Highway bridges in Wisconsin

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    Thesis (Civil Engineering)--University of Kansas, Civil Engineering, 1915. ; Includes bibliographical references

    Alien Registration- Hyslop, Bert E. (Portland, Cumberland County)

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    https://digitalmaine.com/alien_docs/21409/thumbnail.jp

    Ailing, Aging, Addicted: Studies of Compromised Leadership

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    What role did drug abuse play in John F. Kennedy\u27s White House, and how was it kept from the public? How did general anesthetics and aging affect the presidency of Ronald Reagan? Why did Winston Churchill become more egocentric, Woodrow Wilson more self- righteous, and Josef Stalin more paranoid as they aged—and how did those qualities alter the course of history? Was Napoleon poisoned with arsenic or did underlying disease account for his decline at the peak of his power? Does syphilis really explain Henry VIII\u27s midlife transformation? Was there more than messianism brewing in the brains of some zealots of the past, among them Adolf Hitler, Joan of Arc, and John Brown? Most important of all, when does one man\u27s illness cause millions to suffer, and when is it merely a footnote to history? To answer such questions requires the clinical intuition of a practicing physician and the scholarly perspective of a trained historian. Bert Park, who qualifies on both counts, offers here fascinating second opinions, basing his retrospective diagnoses on a wide range of sources from medicine and history. Few books so graphically portray the impact on history of physiologically compromised leadership, misdiagnosis, and inappropriate medical treatment. Park not only untangles medical mysteries from the past but also offers timely suggestions for dealing with such problems in the future. As a welcome sequel to his first work, The Impact of Illness on World Leaders, this book offers scholars, physicians, and general readers an entertaining, albeit sobering, analysis. Bert E. Park, M.D., is a practicing neurological surgeon, an adjunct professor of history, and a member of the Editorial Advisory Committee of the Papers of Woodrow Wilson. Historians will be grateful for Park\u27s meticulous and wide-ranging citations and well-crafted index. This book will entertain, provoke, and stimulate historians, physicians, and general readers alike, and should stimulate further scholarship concerning the pathography of world leaders. —Bulletin of the History of Medicinehttps://uknowledge.uky.edu/upk_history_in_general/1003/thumbnail.jp

    Some Initial Impacts of The Highway Relocation in Mankato and North Mankato, Minnesota

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    A Study of Biology Teaching in the State of Washington – 1959 versus 1965

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    It was the purpose of this study to (1) determine the scope and teaching methods used in biology courses in the State of Washington in 1965; (2) to determine the factors which influenced the scope and methods; (3) to compare the scope and methods with similar data collected in 1959; and (4) to determine if changes that occurred gave evidence of trends

    Genus four superstring measures

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    A main issue in superstring theory are the superstring measures. D'Hoker and Phong showed that for genus two these reduce to measures on the moduli space of curves which are determined by modular forms of weight eight and the bosonic measure. They also suggested a generalisation to higher genus. We showed that their approach works, with a minor modification, in genus three and we announced a positive result also in genus four. Here we give the modular form in genus four explicitly. Recently S. Grushevsky published this result as part of a more general approach.Comment: 7 pages. To appear in Letters in Mathematical Physic

    Determination of thickness and dielectric constant of thin transparent dielectric layers using surface plasmon resonance

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    The determination of the thickness and dielectric constant of thin dielectric layers by means of surface plasmon resonance is discussed. It appears to be impossible to determine these parameters from one surface plasmon response experiment. This is illustrated theoretically. Variation of the refractive index of the solution in which surface plasmon experiments were performed allowed us to determine these parameters separately
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