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Article
Open AccessPressure-induced structural change in liquid GaIn eutectic alloy
Synchrotron x-ray diffraction reveals a pressure induced crystallization at about 3.4 GPa and a polymorphic transition near 10.3 GPa when compressed a liquid GaIn eutectic alloy up to ~13 GPa at room temperatu...
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Chapter
Ertrinkungsunfälle und Unterkühlung
Unterkühlung und (Beinahe-)Ertrinken sind mit der Seefahrt eng verbundene Notfallkonstellationen. Obwohl selten, stellen sie für den Schiffsarzt eine besondere Herausforderung dar. Er muss die zugrunde liegend...
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Chapter
Dermatologie und Venerologie
Dermatologische Erkrankungen sind häufig ein Grund für die Konsultation beim Schiffsarzt. In diesem Kapitel werden die häufigsten Hautkrankheiten aufgelistet und beschrieben. In vielen Fällen sind sie seit Jah...
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Article
Open AccessMap** CushingQOL scores to EQ-5D utility values using data from the European Registry on Cushing’s syndrome (ERCUSYN)
To construct a model to predict preference-adjusted EuroQol 5D (EQ-5D) health utilities for CS using the disease-specific health-related quality of life measure (CushingQOL).
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Article
The Berchtesgaden National Park (Bavaria, Germany): a platform for interdisciplinary catchment research
The Berchtesgaden National Park (Bavaria, Germany), a study site of the UNESCO Man and the Biosphere program in the catchment of Berchtesgadener Ache, is introduced as a platform for interdisciplinary research...
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Article
Map** the Strain Distributions in Deformed Bulk Metallic Glasses Using Hard X-Ray Diffraction
The deformation behavior of Cu45 Zr46.5 Al7Ti1.5 bulk metallic glass (BMG) under bending was investigated in-situ using high-energy X-ray synchrotron diffraction. Samples were bent using two different benders wit...
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Article
Enhancement of plasticity in Zr-based bulk metallic glasses
We present evidence that a minor adjustment in Zr/Ni concentration ratio can dramatically enhance the plasticity of monolithic Zr-based bulk metallic glasses (BMGs) from about 2.2% for Zr65Al8Ni10Cu17 BMG to 14% ...
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Chapter and Conference Paper
Rotational dynamics in anisotropic confinement
Quasi-elastic nuclear resonant forward scattering experiments of the model glass former DBP:FC (Dibutylphthalate:Ferrocene) have been performed in anisotropic confinement, yielding complex spectra. A model for...
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Article
Rotational dynamics in anisotropic confinement
Quasi-elastic nuclear resonant forward scattering experiments of the model glass former DBP:FC (Dibutylphthalate:Ferrocene) have been performed in anisotropic confinement, yielding complex spectra. A model for...
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Article
Lese-Rechtschreib- Störung und sogenannte Fehlsichtigkeit
Lese-Rechtschreib-Störung (LRS) bezeichnet den Überbegriff aller Störungen, die das Erlernen von Lesen und Rechtschreiben erschweren.
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Article
Juvenile Hypoakkommodation — eine potentiell reversible Störung der Akkommodation?
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Article
Confined phonons in glasses
We have applied nuclear inelastic absorption (NIA) to the molecular glass former dibutyl phthalate/ferrocene, both in bulk and in nanoporous matrices having pore sizes of 50 and 25 Å. The quantity g(E)/E ...
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Article
Crystallization of Cu60Ti20Zr20 metallic glass with and without pressure
Structural stability of a Cu60Ti20Zr20 metallic glass under pressure up to 4.5 GPa was investigated by x-ray diffraction. The sample exhibited a supercooled liquid region of 33 K and a ratio of the glass-transiti...
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Chapter and Conference Paper
Phonons in Confinement and the Boson Peak Using Nuclear Inelastic Absorption
We have applied nuclear inelastic absorption (NIA) to the molecular glass former dibutylphthalate/ferrocene, both in bulk and in nanoporous matrices having pore sizes of 50 and 25 Å, respectively. The quantity g(
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Article
Phonons in Confinement and the Boson Peak Using Nuclear Inelastic Absorption
We have applied nuclear inelastic absorption (NIA) to the molecular glass former dibutylphthalate/ferrocene, both in bulk and in nanoporous matrices having pore sizes of 50 and 25 Å, respectively. The quantity g(
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Article
Investigations of Solid State Dynamics at the NRSSR Beamline at PETRA II. An Overview
The present status of the new nuclear resonance beamline PETRA 1 at HASYLAB, DESY, Hamburg is described. Besides an overview of the experimental setup some examples of recent experiments are given. Those cover...
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Chapter and Conference Paper
Glass dynamics and scaling behaviour under pressure using quasielastic nuclear forward scattering
We have investigated the influence of pressure on the α-relaxation in dibutylphthalate/ferrocene using quasielastic nuclear forward scattering of synchrotron radiation, in a temperature range between 150 and 2...
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Chapter and Conference Paper
Excitation of the nuclear resonance in 61Ni at 67.4 keV by Synchrotron Radiation
We report on the first observation of the excitation of the nuclear resonance in 61Ni by synchrotron radiation. Ni is an element very important in the field of magnetism, chemistry, biology and material science. ...
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Article
Quasielastic nuclear forward scattering as a background-free probe of slow glass dynamics in confined geometries
The microscopic dynamics of dibutylphthalate/ferrocene in nanoporous silica matrices with pore sizes of 25, 50, 75, and 200 Å, respectively, has been investigated in a temperature range between 70 and 200 K by...
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Article
The nuclear-resonance-scattering station at the PETRA II undulator beamline
PETRA II, a 12 GeV accelerator at DESY, Hamburg, is used to produce synchrotron radiation (SR) for experiments in the hard X-ray regime when it is not running as injector for HERA. The beam from an undulator i...