Results 51 to 60 of about 2,121,946 (336)

Evolution of axial gravitational waves in rainbow universe

open access: yesPhysics Letters B, 2022
In view of the Regge-Wheeler formalism (RWF) causing axial and polar gravitational waves (GWs), axial modes of the GWs are investigated by considering the spatially flat conformal Friedmann-Lemaitre-Robertson-Walker (FLRW) metric in the rainbow gravity ...
O. Aydogdu, M. Salti
doaj   +1 more source

Limiting absorption principle for perturbed operator

open access: yes, 2021
4 pages; an invariant operator ideal version of the main result has been ...
openaire   +2 more sources

Perturbation theory for critical points of causal variational principles [PDF]

open access: yesAdvances in Theoretical and Mathematical Physics, 2020
The perturbation theory for critical points of causal variational principles is developed. We first analyze the class of perturbations obtained by multiplying the universal measure by a weight function and taking the push-forward under a diffeomorphism. Then the constructions are extended to convex combinations of such measures, leading to perturbation
openaire   +2 more sources

The ubiquitin‐proteasome system and autophagy as guardians of the cellular proteome

open access: yesFEBS Letters, EarlyView.
This Perspective covers the three principles governing the crosstalk between the ubiquitin‐proteasome system and autophagy in cellular proteostasis: (1) a shared ubiquitin code routing substrates via shuttle factors or autophagy receptors; (2) spatial compartmentalization into phase‐separated degradation hubs and organelle‐specific modules (exemplified
Ivan Dikic
wiley   +1 more source

Approximate Conservation Laws of Nonvariational Differential Equations

open access: yesMathematics, 2019
The concept of an approximate multiplier (integrating factor) is introduced. Such multipliers are shown to give rise to approximate local conservation laws for differential equations that admit a small perturbation.
Sameerah Jamal
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

open access: yesFEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson   +6 more
wiley   +1 more source

New analytical solution for stream–aquifer interaction under constant replenishment

open access: yesApplied Water Science, 2018
In the present paper, approximate analytical solutions for flow in unconfined aquifers with streams are obtained assuming one-dimensional horizontal groundwater flow in homogeneous and isotropic aquifer with recharge effect using variational homotopy ...
Amruta Daga Bhandari   +2 more
doaj   +1 more source

Perturbation theory for critical points of causal variational principles [PDF]

open access: yes, 2017
The perturbation theory for critical points of causal variational principles is developed. We first analyze the class of perturbations obtained by multiplying the universal measure by a weight function and taking the push-forward under a dif- feomorphism.
Finster, Felix
core   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

open access: yesFEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry   +9 more
wiley   +1 more source

Size-dependent mechanics of viscoelastic carbon nanotubes: Modeling, theoretical and numerical analysis

open access: yesResults in Physics, 2020
This research presents the complex mechanics of the size-dependent viscoelastic carbon nanotube (CNT) subjected to the electric load. The mechanical model describing the motions of CNT is formulated by the Euler beam theory, Kelvin-Voigt viscoelastic ...
Mingyuan Li, Qiliang Wu, Bin Bai
doaj   +1 more source

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