Results 31 to 40 of about 648,849 (327)

Chemical Composition of the Early Universe

, 2003
A prediction of standard inflationary cosmology is that the elemental composition of the medium out of which the earliest stars and galaxies condensed consisted primarily of hydrogen and helium 4He with small admixtures of deuterium, lithium 7Li, and 3He.
Harwit, Martin, Spaans, Marco
core   +2 more sources

Correction: Gorban et al. The Asymmetric Dynamical Casimir Effect. Physics 2023, 5, 398–422

Physics
There was an error in the original paper [1], which occurred in the calculation of the DCE spectrum from the time-dependant perturbations on λ(t) [...]
Matthew J. Gorban, William D. Julius, Patrick M. Brown, Jacob A. Matulevich, Gerald B. Cleaver   +4 more
doaj   +1 more source

Qualitative Analysis of Early Universe Cosmologies [PDF]

, 1999
A qualitative analysis is presented for a class of homogeneous cosmologies derived from the string effective action when a cosmological constant is present in the matter sector of the theory.
Billyard, Andrew P, Coley, Alan A, Lidsey, James E   +2 more
core   +2 more sources

First- and Second-Order Forces in the Asymmetric Dynamical Casimir Effect for a Single δ − δ^′ Mirror

Physics
Here, we consider an asymmetric δ−δ′ mirror undergoing time-dependent interactions with a massless scalar field in 1 + 1 dimensions. Using fluctuation-dissipation theory for a mirror in vacuum, we compute the force on a moving δ−δ′ mirror with time ...
Matthew J. Gorban, William D. Julius, Patrick M. Brown, Jacob A. Matulevich, Ramesh Radhakrishnan, Gerald B. Cleaver   +5 more
doaj   +1 more source

On the violent preheating in the mixed Higgs-R2 inflationary model

Physics Letters B, 2019
It has been argued that the mixed Higgs-R2 model acts as the UV extension of the Higgs inflation, pushing up its cut-off scale in the vacuum close up to the Planck scale.
Minxi He, Ryusuke Jinno, Kohei Kamada, Seong Chan Park, Alexei A. Starobinsky, Jun'ichi Yokoyama   +5 more
doaj   +1 more source

Supernova Nucleosynthesis in the Early Universe [PDF]

, 2008
The first metal enrichment in the universe was made by supernova (SN) explosions of population (Pop) III stars. The trace remains in abundance patterns of extremely metal-poor (EMP) stars.
Amati, Cayrel, Depagne, Hideyuki Umeda, Keiichi Maeda, Ken'ichi Nomoto, Nobuyuki Iwamoto, Nozomu Tominaga   +7 more
core   +1 more source

Sickle Cell Disease Is an Inherent Risk for Asthma in a Sibling Comparison Study

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Introduction Sickle cell disease (SCD) and asthma share a complex relationship. Although estimates vary, asthma prevalence in children with SCD is believed to be comparable to or higher than the general population. Determining whether SCD confers an increased risk for asthma remains challenging due to overlapping symptoms and the ...
Suhei C. Zuleta De Bernardis, Okeleji Olayinka, Mariam Z. Quraishi, Lakshmi V. Srivaths, Deborah L. Brown, Neethu M. Menon, Ricardo A. Mosquera, Ashwin P. Patel, James M. Stark, Aravind Yadav   +9 more
wiley   +1 more source

Holographic Renormalization in Dense Medium

Advances in High Energy Physics, 2014
The holographic renormalization of a charged black brane with or without a dilaton field, whose dual field theory describes a dense medium at finite temperature, is investigated in this paper.
Chanyong Park
doaj   +1 more source

Neutrino-Lasing in The Early Universe

, 1993
Recently, Madsen has argued that relativistic decays of massive neutrinos into lighter fermions and bosons may lead, via thermalization, to the formation of a Bose condensate. If correct, this could generate mixed hot and cold dark matter, with important
A. N. Taylor, E. L. Wright, G. D. Starkman, G. Smoot, J. Madsen, J. R. Bond, L. F. Li, M. Davis, M. Smith, N. Kaiser, R. A. Malaney, R. E. Shrock, S. J. Maddox   +12 more
core   +2 more sources

The Habitable Epoch of the Early Universe [PDF]

, 2014
In the redshift range ...
Loeb, Abraham
core   +1 more source