Results 41 to 50 of about 3,002,975 (394)

Two-Dimensional Spectroscopy of Extended Molecular Systems: Applications to Energy Transport and Relaxation in an α-Helix [PDF]

open access: yes, 2010
A simulation study of the coupled dynamics of amide I and amide II vibrations in an α-helix dissolved in water shows that two-dimensional (2D) infrared spectroscopy may be used to disentangle the energy transport along the helix through each of these ...
Backus E. H. G.   +35 more
core   +3 more sources

Infrared Spectroscopy of Be Stars [PDF]

open access: yesSymposium - International Astronomical Union, 1994
FeII emission lines are present in a variety of astrophysical objects and, in particular, in Be stars, where in some situations they can also be seen in absorption. Selvelli & Araujo (1984) studied a sample of classical Be stars that have FeII emission lines in the optical region.
R. M. Torres   +2 more
openaire   +2 more sources

Infrared Variability of Evolved Protoplanetary Disks: Evidence for Scale Height Variations in the Inner Disk

open access: yes, 2012
We present the results of a multi-wavelength multi-epoch survey of five evolved protoplanetary disks in the IC 348 cluster that show significant infrared variability.
Andrews   +66 more
core   +1 more source

The surface composition of asteroid 162173 Ryugu from Hayabusa2 near-infrared spectroscopy

open access: yesScience, 2019
Hayabusa2 at the asteroid Ryugu Asteroids fall to Earth in the form of meteorites, but these provide little information about their origins. The Japanese mission Hayabusa2 is designed to collect samples directly from the surface of an asteroid and return
K. Kitazato   +65 more
semanticscholar   +1 more source

Thermal infrared spectroscopy of Europa and Callisto [PDF]

open access: yes, 2000
The trailing hemispheres of Europa and Callisto were observed at 9–13 μm, and a spectrum of Europa with better spectral resolution and a better signal-to-noise ratio than was previously possible has been derived.
Brown, Michael E., Mills, Franklin P.
core   +1 more source

Cerebral infrared spectroscopy at brain injury

open access: yesUkrainian Neurosurgical Journal, 2014
Data on cerebral infrared spectroscopy (CIS) use at different brain injuries are reviewed. CIS comparability with other methods for assessment of cerebral oxygen saturation (jugular oximetry and invasive cerebral oximetry) was shown.
Aleksey Trofimov   +2 more
doaj   +1 more source

High Coherence Mid-Infrared Dual Comb Spectroscopy Spanning 2.6 to 5.2 microns

open access: yes, 2017
Mid-infrared dual-comb spectroscopy has the potential to supplant conventional high-resolution Fourier transform spectroscopy in applications that require high resolution, accuracy, signal-to-noise ratio, and speed.
Baumann, Esther   +6 more
core   +1 more source

Repeat Expansions in PLIN4 Cause Autosomal Dominant Vacuolar Myopathy With Sarcolemmal Features

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective We aim to describe and characterize two unrelated Spanish families suffering from an autosomal dominant autophagic vacuolar myopathy caused by repeat expansions in PLIN4. Methods We evaluated the clinical phenotype and muscle imaging, and performed a genetic workup that included exome sequencing, muscle RNAseq, and long‐read genome ...
Laura Llansó   +17 more
wiley   +1 more source

g-C3N4 Modified by meso-Tetrahydroxyphenylchlorin for Photocatalytic Hydrogen Evolution Under Visible/Near-Infrared Light

open access: yesFrontiers in Chemistry, 2020
A new photocatalyst denoted as mTHPC/pCN was prepared by modifying protonated graphitic carbon nitride (pCN) by meso-tetrahydroxyphenylchlorin (mTHPC). Relevant samples were characterized via various methods including zeta potential measurements, X-ray ...
Yanfei Liu, Zhen Ma, Zhen Ma
doaj   +1 more source

Spitzer Mid-Infrared Spectroscopy of 70um-Selected Distant Luminous Infrared Galaxies [PDF]

open access: yes, 2007
We present mid-infrared spectroscopy obtained with the Spitzer Space Telescope of a sample of 11 optically faint, infrared luminous galaxies selected from a Spitzer MIPS 70um imaging survey of the NDWFS Bootes field.
Arjun Dey   +11 more
core   +2 more sources

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