1,021 research outputs found

    The experiences of mothers who brought up children with severe congenital heart disease to adulthood : Principles that support mothers who nurture a child with a severe disease

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    Journal Article目的:重症先天性心疾患をもつ子どもを成人まで育てあげた母親の育児体験を記述することを通して、重症疾患をもつ子どもの親支援に関する示唆を得る。方法:A県心臓病の子どもを守る会の、重症先天性心疾患をもつ子どもをひとり立ちさせることができた母親5名に研究協力を得て内容分析法で分析した。結果及び考察:母親は、子どもの出生時にわが子の死を覚悟した。そして、子どもの幼少期には、死の恐怖を乗り越えて、子どもの生きようとする力を支えた。就学時期に入ると母親の子育ては、子どもには何ができて何ができないかを見極めるという視点に変わった。母親の子どもの自己決定力を育もうとしたこの積み重ねが功を奏し、義務教育終了期には子ども本人に決定を委ねることができ、進路選択の時期には、子どもの自由を確保することで、子どもはひとり立ちした。この母親の子育ての信条が、本人の人生を切り開く力を育む上で欠かせないことが示唆された。Purpose: The purpose of this research was to derive suggestions regarding support for parents of children with severe disease through recording childcare experiences of mothers who brought up children with severe congenital heart disease to adulthood. Methods: Five mothers who belong to a support group for children with heart disease within the same prefecture, and who had brought up children with severe congenital heart disease to the point where the children had gained independence, agreed to cooperate with this research. Data was analyzed using the content analysis method. Results and Discussion: The mothers were prepared for their child's death at birth. As the child grew, the mothers overcame the fear of death, and supported the child's efforts to live. When the children reached school age, the mothers' child raising habits changed to a perspective of ascertaining what the children can do and cannot do by themselves. The mothers' accumulated efforts to foster the capacity for self-determination in their children were successful and, at the end of the compulsory education period, the mothers could leave decisions to the children to make for themselves. By the time the children were about to enter the workforce, they had secured their own freedoms and had become independent. This suggests that the child-rearing principles of these mothers are indispensable to foster in children the power to take control of their own lives.原著本研究は、平成23年度新潟県立看護大学大学院看護学研究科に提出した修士論文の一部に加筆および修正を行ったものjournal articl

    63rd Commencement Address

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    Judge Wald offers advice to graduates, including: But the most valuable legacy college can leave you Is an appetite and appreciation of language. Clarity, lucidity, precision with words is the most elusive of talents. Words inform, inspire, mislead and sometimes destroy. They are the most essential tool of humanity. Words plan, build, preserve, and often demolish civilizations, industries, empires, governments, and relationships. If you carry one lesson from college to life, let it be the knowledge that what you say is the expression of what you mean, what you intend to provoke in others, what you want to realize

    Direct Fragmentation of Quarkonia Including Fermi Motion Using Light-cone Wave Function

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    We investigate the effect of Fermi motion on the direct fragmentation of the J/ψJ/\psi and Υ\Upsilon states employing a light-cone wave function. Consistent with such a wave function we set up the kinematics of a heavy quark fragmenting into a quarkonia such that the Fermi motion of the constituents split into longitudinal as well as transverse direction and thus calculate the fragmentation functions for these states. In the framework of our investigation, we estimate that the fragmentation probabilities of J/ψJ/\psi and Υ\Upsilon may increase at least up to 14 percent when including this degree of freedom.Comment: 7 pages 5 figures Appeared in EPJC; Fig 1 and Appendix revise

    Signatures of Chiral Dynamics in Low Energy Compton Scattering off the Nucleon

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    We present a projector formalism which allows to define dynamical polarizabilities of the nucleon from a multipole expansion of the nucleon Compton amplitudes. We give predictions for the energy dependence of these dynamical polarizabilities both from dispersion theory and from leading-one-loop chiral effective field theory. Based on the good agreement between the two theoretical frameworks, we conclude that the energy dependence of the dynamical polarizabilities is dominated by chiral dynamics, except in those multipole channels where the first nucleon resonance Delta(1232) can be excited. Both the dispersion theory framework and a chiral effective field theory with explicit Delta(1232) degrees of freedom lead to a very good description of the available low energy proton Compton data. We discuss the sensitivity of the proton Compton cross section to dynamical polarizabilities of different multipole content and present a fit of the static electric and magnetic dipole polarizabilities from low-energy Compton data up to omega=170 MeV, finding alpha_E=(11.04+-1.36)*10^(-4) fm^3, beta_M =(2.76-+1.36)*10^(-4) fm^3.Comment: 43 pages, 13 figure

    Modulational instabilities in Josephson oscillations of elongated coupled condensates

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    We study the Josephson oscillations of two coupled elongated condensates. Linearized calculations show that the oscillating mode uniform over the length of the condensates (uniform Josephson mode) is unstable : modes of non zero longitudinal momentum grow exponentially. In the limit of strong atom interactions, we give scaling laws for the instability time constant and unstable wave vectors. Beyond the linearized approach, numerical calculations show a damped recurrence behavior : the energy in the Josephson mode presents damped oscillations. Finally, we derive conditions on the confinement of the condensates to prevent instabilities

    The high-energy hadron spin-flip amplitude at small momentum transfer and new AN data from RHIC

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    In the case of elastic high-energy hadron-hadron scattering, the impact of the large-distance contributions on the behaviour of the slopes of the spin-non-flip and of the spin-flip amplitudes is analysed. It is shown that the long tail of the hadronic potential in impact parameter space leads to a value of the slope of the reduced spin-flip amplitude larger than that of the spin-non-flip amplitude. This effect is taken into account in the calculation of the analysing power in proton-nucleus reactions at high energies. It is shown that the preliminary measurement of AN obtained by the E950 Collaboration indeed favour a spin-flip-amplitude with a large slope. Predictions for AN at pL = 250 GeV/c are given.Comment: 16 pages, 5 figures, a few typos fixed in v.

    A Covariant Path Amplitude Description of Flavour Oscillations: The Gribov-Pontecorvo Phase for Neutrino Vacuum Propagation is Right

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    An extended study is performed of geometrical and kinematical assumptions used in calculations of the neutrino oscillation phase. The almost universally employed `equal velocity' assumption, in which all neutrino mass eigenstates are produced at the same time, is shown to underestimate, by a factor of two, the neutrino propagation contribution to the phase. Taking properly into account, in a covariant path amplitude calculation, the incoherent nature of neutrino production as predicted by the Standard Model, results in an important source propagator contribution to the phase. It is argued that the commonly discussed Gaussian `wave packets' have no basis within quantum mechanics and are the result of a confused amalgam of quantum and classical wave concepts.Comment: 39 pages, 1 table, 1 figure. Subject matter similar to hep-ph/0110064, hep-ph/0110066. More pedagogical presentation addressing referee criticism of earlier paper

    Impact of Spontaneous Extracranial Bleeding Events on Health State Utility in Patients with Atrial Fibrillation: Results from the ENGAGE AF-TIMI 48 Trial.

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    BACKGROUND: The impact of different types of extracranial bleeding events on health-related quality of life and health-state utility among patients with atrial fibrillation is not well understood. METHODS AND RESULTS: The ENGAGE AF-TIMI 48 (Effective Anticoagulation With Factor Xa Next Generation in Atrial Fibrillation-Thrombolysis in Myocardial Infarction 48) Trial compared edoxaban with warfarin with respect to the prevention of stroke or systemic embolism in atrial fibrillation. Data from the EuroQol-5D (EQ-5D-3L) questionnaire, prospectively collected at 3-month intervals for up to 48 months, were used to estimate the impact of different categories of bleeding events on health-state utility over 12 months following the event. Longitudinal mixed-effect models revealed that major gastrointestinal bleeds and major nongastrointestinal bleeds were associated with significant immediate decreases in utility scores (-0.029 [-0.044 to -0.014; P<0.001] and -0.029 [-0.046 to -0.012; P=0.001], respectively). These effects decreased in magnitude over time, and were no longer significant for major nongastrointestinal bleeds at 9 months, but remained borderline significant for major gastrointestinal bleeds at 12 months. Clinically relevant nonmajor and minor bleeds were associated with smaller but measurable immediate impacts on utility (-0.010 [-0.016 to -0.005] and -0.016 [-0.024 to -0.008]; P<0.001 for both), which remained relatively constant and statistically significant over the 12 months following the bleeding event. CONCLUSIONS: All categories of bleeding events were associated with negative impacts on health-state utility in patients with atrial fibrillation. Major bleeds were associated with relatively large immediate decreases in utility scores that gradually diminished over 12 months; clinically relevant nonmajor and minor bleeds were associated with smaller immediate decreases in utility that persisted over 12 months. CLINICAL TRIAL REGISTRATION: URL: https://www.clinicaltrials.gov/. Unique identifier: NCT00781391

    Creating Ioffe-Pritchard micro-traps from permanent magnetic film with in-plane magnetization

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    We present designs for Ioffe-Pritchard type magnetic traps using planar patterns of hard magnetic material. Two samples with different pattern designs were produced by spark erosion of 40 μ\mum thick FePt foil. The pattern on the first sample yields calculated axial and radial trap frequencies of 51 Hz and 6.8 kHz, respectively. For the second sample the calculated frequencies are 34 Hz and 11 kHz. The structures were used successfully as a magneto-optical trap for 87^{87}Rb and loaded as a magnetic trap. A third design, based on lithographically patterned 250 nm thick FePt film on a Si substrate, yields an array of 19 traps with calculated axial and radial trap frequencies of 1.5 kHz and 110 kHz, respectively.Comment: 8 pages, 5 figures Revised and accepted for EPJD, improved picture

    Quantifying bid-ask spreads in the Chinese stock market using limit-order book data: Intraday pattern, probability distribution, long memory, and multifractal nature

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    The statistical properties of the bid-ask spread of a frequently traded Chinese stock listed on the Shenzhen Stock Exchange are investigated using the limit-order book data. Three different definitions of spread are considered based on the time right before transactions, the time whenever the highest buying price or the lowest selling price changes, and a fixed time interval. The results are qualitatively similar no matter linear prices or logarithmic prices are used. The average spread exhibits evident intraday patterns consisting of a big L-shape in morning transactions and a small L-shape in the afternoon. The distributions of the spread with different definitions decay as power laws. The tail exponents of spreads at transaction level are well within the interval (2,3)(2,3) and that of average spreads are well in line with the inverse cubic law for different time intervals. Based on the detrended fluctuation analysis, we found the evidence of long memory in the bid-ask spread time series for all three definitions, even after the removal of the intraday pattern. Using the classical box-counting approach for multifractal analysis, we show that the time series of bid-ask spread does not possess multifractal nature.Comment: 8 EPJ pages including 7 eps figure
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