Results 21 to 30 of about 221,703 (328)

Coelenterazine Indicators for the Specific Imaging of Human and Bovine Serum Albumins

open access: yesSensors, 2023
Albumin assays in serum are important for the prognostic assessment of many life-threatening diseases, such as heart failure, liver disease, malnutrition, inflammatory bowel disease, infections, and kidney disease. In this study, synthetic coelenterazine
Sung-Bae Kim   +4 more
doaj   +1 more source

A Theoretical Study of Interband Absorption Spectra of Spherical Sector Quantum Dots under the Effect of a Powerful Resonant Laser

open access: yesNanomaterials, 2023
We explore the variation of interband absorption spectra of GaAs spherical sector quantum dots (QDs) in response to a strong resonant laser, using the renormalized wave function method. Even though a spherical sector QD appears identical to a section cut
Le Thi Dieu Hien   +5 more
doaj   +1 more source

The age of our universe [PDF]

open access: yesHemijska Industrija, 2008
If we assume that the observed Redshift of starlight is due to the Doppler effect we end up with models of the universe which contradict the basic laws of science. If we assume that the red shift may be due to a tiring of light, an assumption still to be
Levenspiel Octave
doaj   +1 more source

Noncosmological redshifts [PDF]

open access: yesSpace Science Reviews, 1977
L’introduction de lignes d’univers brisées dans la théorie de la gravitation de Hoyle et Narlikar permet de rendre compte de la création de matière. Cette matière qui se compose de masses inertielles plus petites se manifeste par des décalages spectraux vers le rouge anormaux.
openaire   +2 more sources

Redshift Weights for Baryon Acoustic Oscillations : Application to Mock Galaxy Catalogs [PDF]

open access: yes, 2016
Large redshift surveys capable of measuring the Baryon Acoustic Oscillation (BAO) signal have proven to be an effective way of measuring the distance-redshift relation in cosmology. Building off the work in Zhu et al.
Padmanabhan, Nikhil   +4 more
core   +2 more sources

Hydrogen Intramolecular Stretch Redshift in the Electrostatic Environment of Type II Clathrate Hydrates from Schrödinger Equation Treatment

open access: yesApplied Sciences, 2020
The one-dimensional Schrödinger equation, applied to the H2 intramolecular stretch coordinate in singly to quadruply occupied large cages in extended Type II (sII) hydrogen clathrate hydrate, was solved numerically herein via potential-energy scans from ...
Christian J. Burnham   +3 more
doaj   +1 more source

The redshift of GRB970508 [PDF]

open access: yesFourth Huntsville gamma-ray burst symposium, 1998
GRB 970508 is the second gamma-ray burst (GRB) for which an optical afterglow has been detected. It is the first GRB for which a distance scale has been determined: absorption and emission features in spectra of the optical afterglow place GRB 970508 at a redshift of z >= 0.835 [1,2].
openaire   +3 more sources

An Optical View of Extragalactic γ-Ray Emitters

open access: yesFrontiers in Astronomy and Space Sciences, 2017
The Fermi Gamma-ray Observatory discovered about a thousand extragalactic sources emitting energy from 100 MeV to 100 GeV. The majority of these sources belong to the class of blazars characterized by a quasi-featureless optical spectrum (BL Lac Objects).
Simona Paiano   +6 more
doaj   +1 more source

The VIMOS VLT Deep Survey - First epoch VVDS-Deep survey: 11564 spectra with 17.5<=IAB<=24, and the redshift distribution over 0< z <=5 [PDF]

open access: yes, 2004
This paper presents the ``First Epoch'' sample from the VIMOS VLT Deep Survey (VVDS). The VVDS goals, observations, data reduction with VIPGI, and redshift measurement with KBRED are discussed.
A. Bongiorno   +47 more
core   +4 more sources

Detecting Helium Reionization with Fast Radio Bursts

open access: yes, 2020
Fast radio bursts (FRB) probe the electron density of the universe along the path of propagation, making high redshift FRB sensitive to the helium reionization epoch.
Linder, Eric V.
core   +1 more source

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