Results 51 to 60 of about 88,270 (291)

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

Non-linearities in cosmological bubble wall dynamics

Journal of High Energy Physics
A precise modelling of the dynamics of bubbles nucleated during first-order phase transitions in the early Universe is pivotal for a quantitative determination of various cosmic relics, including the stochastic background of gravitational waves.
Stefania De Curtis, Luigi Delle Rose, Andrea Guiggiani, Ángel Gil Muyor, Giuliano Panico   +4 more
doaj   +1 more source

Reflections on bubble walls

Journal of High Energy Physics, 2023
We discuss the dynamics of expanding bubble walls in the presence of massive dark photons whose mass changes as they cross the wall. For sufficiently thin walls, we show that there exists a transient kinematic regime characterized by a constant ...
Isabel Garcia Garcia, Giacomo Koszegi, Rudin Petrossian-Byrne   +2 more
doaj   +1 more source

Gravitational Wave Bursts from Collisions of Primordial Black Holes in Clusters

, 2010
The rate of gravitational wave bursts from the mergers of massive primordial black holes in clusters is calculated. Such clusters of black holes can be formed through phase transitions in the early Universe.
A. Cattaneo, A. Sesana, C. M. Will, H. Mouri, L. P. Grishchuk, L. Spitzer, M. Mapelli, M. Yu. Khlopov, M. Yu. Khlopov, S. G. Rubin, S. G. Rubin, S. G. Rubin, V. Dokuchaev, V. I. Dokuchaev, Y. Gao, Yu. N. Eroshenko   +15 more
core   +1 more source

The newfound relationship between extrachromosomal DNAs and excised signal circles

FEBS Letters, EarlyView.
Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley   +1 more source

Bubble friction in symmetry-restoring transitions

Journal of High Energy Physics
In standard (symmetry-breaking) first-order phase transitions, the frictional pressure on expanding bubble walls can be dominated by transition radiation — the emission of a gauge boson with phase-dependent masses as particles present in the thermal ...
Andrew J. Long, Bibhushan Shakya, Julia Anabell Ziegler   +2 more
doaj   +1 more source

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

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

In situ molecular organization and heterogeneity of the Legionella Dot/Icm T4SS

FEBS Letters, EarlyView.
We present a nearly complete in situ model of the Legionella Dot/Icm type IV secretion system, revealing its central secretion channel and identifying new components. Using cryo‐electron tomography with AI‐based modeling, our work highlights the structure, variability, and mechanism of this complex nanomachine, advancing understanding of bacterial ...
Przemysław Dutka, Yuxi Liu, Stefano Maggi, Debnath Ghosal, Jue Wang, Prashant P. Damke, Stephen D. Carter, Wei Zhao, Sukhithasri Vijayrajratnam, Joseph P. Vogel, Carrie L. Shaffer, Grant J. Jensen   +11 more
wiley   +1 more source

Bounds on the bubble wall velocity

Journal 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, Benoit Laurent, Jorinde van de Vis   +2 more
doaj   +1 more source