Results 51 to 60 of about 87,708 (328)

Inflationary electroweak/particle phase transitions and new classical gravitational waves on CMB

open access: yes, 2016
Particle phase transitions in the early universe including electroweak and grand unification ones are well-studied subjects. We point out that there are new possible particle phase transitions around inflation.
Sun, Sichun
core   +1 more source

Generation of Magnetic Fields in Cosmology [PDF]

open access: yes, 2001
Mechanisms of generation of magnetic fields in the early universe which could seed the present-day large scale galactic magnetic fields, are briefly reviewed.
Dolgov, A. D.
core   +4 more sources

Hematopoietic (stem) cells—The elixir of life?

open access: yesFEBS Letters, EarlyView.
The aging of HSCs (hematopoietic stem cells) and the blood system leads to the decline of other organs. Rejuvenating aged HSCs improves the function of the blood system, slowing the aging of the heart, kidney, brain, and liver, and the occurrence of age‐related diseases.
Emilie L. Cerezo   +4 more
wiley   +1 more source

Bounds on the bubble wall velocity

open access: yesJournal of High Energy Physics
Determining the bubble wall velocity in first-order phase transitions is a challenging task, requiring the solution of (coupled) equations of motion for the scalar field and Boltzmann equations for the particles in the plasma.
Wen-Yuan Ai   +2 more
doaj   +1 more source

Interplay between circadian and other transcription factors—Implications for cycling transcriptome reprogramming

open access: yesFEBS Letters, EarlyView.
This perspective highlights emerging insights into how the circadian transcription factor CLOCK:BMAL1 regulates chromatin architecture, cooperates with other transcription factors, and coordinates enhancer dynamics. We propose an updated framework for how circadian transcription factors operate within dynamic and multifactorial chromatin landscapes ...
Xinyu Y. Nie, Jerome S. Menet
wiley   +1 more source

Particle shells from relativistic bubble walls

open access: yesJournal of High Energy Physics
Relativistic bubble walls from cosmological phase transitions (PT) necessarily accumulate expanding shells of particles. We systematically characterize shell properties, and identify and calculate the processes that prevent them from free streaming ...
Iason Baldes   +3 more
doaj   +1 more source

Imprints of a supercooled phase transition in the gravitational wave spectrum from a cosmic string network

open access: yesJournal of High Energy Physics, 2023
A network of cosmic strings (CS), if present, would continue emitting gravitational waves (GW) as it evolves throughout the history of the Universe. This results in a characteristic broad spectrum making it a perfect source to infer the expansion history.
Francesc Ferrer   +2 more
doaj   +1 more source

Gravitational waves from first order phase transitions during inflation

open access: yes, 2011
We study the production, spectrum and detectability of gravitational waves in models of the early Universe where first order phase transitions occur during inflation. We consider all relevant sources. The self-consistency of the scenario strongly affects
A. D. Linde   +9 more
core   +1 more source

The gravitational wave symphony of the Universe [PDF]

open access: yes, 2000
The new millennium will see the upcoming of several ground-based interferometric gravitational wave antennas. Within the next decade a space-based antenna may also begin to observe the distant Universe.
Sathyaprakash, B S
core   +2 more sources

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