Results 41 to 50 of about 87,708 (328)
Gravitational Waves from Phase Transitions at the Electroweak Scale and Beyond [PDF]
, 2006 If there was a first order phase transition in the early universe, there should be an associated stochastic background of gravitational waves. In this paper, we point out that the characteristic frequency of the spectrum due to phase transitions which ...
Grojean, Christophe, Servant, Geraldine
core +2 more sources
Gravitational waves-tomography of Low-Scale-Leptogenesis
Journal of High Energy Physics, 2022 A long-lived scalar field (Φ) which couples weakly to the right-handed (RH) neutrinos (N Ri ), generates small RH neutrino masses (M i ) in Low-Scale-Leptogenesis (LSL) mechanisms, despite having a large vacuum expectation value v Φ.
Satyabrata Datta, Rome Samanta
doaj +1 more source
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
Thermalization effects on the dynamics of growing vacuum bubbles
Journal of High Energy PhysicsWe study the evolution of growing vacuum bubbles. The bubble walls interact with the surrounding fluid and may, consequently, reach a terminal velocity.
Tomasz Krajewski +5 more
doaj +1 more source
The Origin of Cosmic Magnetic Fields
, 2000 In this talk, I review a number of particle-physics models that lead to the creation of magnetic fields in the early universe and address the complex problem of evolving such primordial magnetic fields into the fields observed today.
Tornkvist, Ola
core +2 more sources
Gravitational waves from the sound of a first order phase transition [PDF]
, 2014 We report on the first three-dimensional numerical simulations of first-order phase transitions in the early Universe to include the cosmic fluid as well as the scalar field order parameter.
C. J. Hogan +6 more
core +2 more sources
Reciprocal control of viral infection and phosphoinositide dynamics
FEBS Letters, EarlyView.Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley +1 more source
Gamma rays from ultracompact primordial dark matter minihalos
, 2009 Ultracompact minihalos have recently been proposed as a new class of dark matter structure. These minihalos would be produced by phase transitions in the early Universe or features in the inflaton potential, and constitute non-baryonic massive compact ...
E. W. Kolb +4 more
core +2 more sources
By dawn or dusk—how circadian timing rewrites bacterial infection outcomes
FEBS Letters, EarlyView.The circadian clock shapes immune function, yet its influence on infection outcomes is only beginning to be understood. This review highlights how circadian timing alters host responses to the bacterial pathogens Salmonella enterica, Listeria monocytogenes, and Streptococcus pneumoniae revealing that the effectiveness of immune defense depends not only
Devons Mo +2 more
wiley +1 more source
What happens when supercooling is terminated by curvature flipping of the effective potential?
Journal of High Energy PhysicsWe explore the nature of a certain type of supercooled phase transition, where the supercooling is guaranteed to end due to the curvature of the finite-temperature effective potential at the origin experiencing a sign flip at some temperature.
Tomasz P. Dutka +2 more
doaj +1 more source