Results 71 to 80 of about 883,360 (293)
FEBS Letters, EarlyView.Biomolecular condensates formed by fused in sarcoma (FUS) are dissolved by high ATP concentrations yet persist in cells. Using a reconstituted system, we demonstrate that valosin‐containing protein (VCP), an AAA+ ATPase, counteracts ATP‐driven dissolution of FUS condensates through its D2 ATPase activity.
Hitomi Kimura +2 more
wiley +1 more source
Revisiting the connection of baryon number, lepton number, and operator dimension
Physics Letters BThe effects of heavy new particles beyond the Standard Model can be conveniently captured through higher-dimensional effective operators. As noted long ago by Weinberg, the amount of baryon and lepton number an operator can carry is intricately connected
Julian Heeck, Diana Sokhashvili
doaj +1 more source
AN ALGORITHM FOR COMPACT FIXED-POINT IMPLEMENTATION OF DIGITAL CONTROLLERS [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2018 We propose and study the algorithm of digital controllers implementation in fixed-point arithmetic based on the adaptive selection of a discrete transform and a discrete operator (z- or δ-operator).
T. I. Karimov +3 more
doaj +1 more source
POSITION OPERATORS AND CENTER-OF-MASS: NEW PERSPECTIVES [PDF]
International Journal of Modern Physics A, 2013 After reviewing the work of Pryce on Center-of-Mass (CoM) definitions in special relativity, and that of Jordan and Mukunda on position operators for relativistic particles with spin, we propose two new criteria for a CoM candidate: associativity, and compatibility with the Poisson bracket structure. We find that they are not satisfied by all of Pryce'
Aguilar, P. +3 more
openaire +2 more sources
Displacement operator for quantum systems with position-dependent mass
, 2011 A translation operator is introduced to describe the quantum dynamics of a position-dependent mass particle in a null or constant potential. From this operator, we obtain a generalized form of the momentum operator as well as a unique commutation ...
Almeida, M. P. +3 more
core +1 more source
Off-diagonal mass generation for Yang-Mills theories in the maximal Abelian gauge [PDF]
, 2005 We investigate a dynamical mass generation mechanism for the off-diagonal gluons and ghosts in SU(N) Yang-Mills theories, quantized in the maximal Abelian gauge. Such a mass can be seen as evidence for the Abelian dominance in that gauge.
Dudal, D. +6 more
core +2 more sources
Diversity and complexity in neural organoids
FEBS Letters, EarlyView.Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley +1 more source
Journal of High Energy PhysicsWe calculate the two-mass three-loop contributions to the unpolarized and polarized massive operator matrix elements $${\widetilde{A}}_{Qg}^{(3)}$$ and $${\Delta \widetilde{A}}_{Qg}^{(3)}$$ in x-space for a general mass ratio by using a semi-analytic ...
J. Ablinger +5 more
doaj +1 more source
AAA+ protein unfoldases—the Moirai of the proteome
FEBS Letters, EarlyView.AAA+ unfoldases are essential molecular motors that power protein degradation and disaggregation. This review integrates recent cryo‐electron microscopy (cryo‐EM) structures and single‐molecule biophysical data to reconcile competing models of substrate translocation.
Stavros Azinas, Marta Carroni
wiley +1 more source
Quantum dynamics of a driven parametric oscillator in a Kerr medium
Scientific Reports, 2023 In this paper, we first analyze a parametric oscillator with both mass and frequency time-dependent. We show that the evolution operator can be obtained from the evolution operator of another parametric oscillator with a constant mass and time-dependent ...
E. Bolandhemmat, F. Kheirandish
doaj +1 more source