Results 71 to 80 of about 522,797 (308)

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS 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

A rational optimal block hybrid method for enhanced accuracy in solving Lane–Emden equations

open access: yesPartial Differential Equations in Applied Mathematics
This paper introduces a block hybrid method designed for the effective resolution of Lane–Emden equations, which are characterized as second-order boundary value problems incorporating a singularity at the origin.
Sandile Motsa   +3 more
doaj   +1 more source

Infinite distance networks in field space and charge orbits

open access: yesJournal of High Energy Physics, 2019
The Swampland Distance Conjecture proposes that approaching infinite distances in field space an infinite tower of states becomes exponentially light. We study this conjecture for the complex structure moduli space of Calabi-Yau manifolds.
Thomas W. Grimm   +2 more
doaj   +1 more source

Stratified Picard-Lefschetz Theory with Twisted Coefficients [PDF]

open access: yes, 2014
The monodromy action in the homology (generally with twisted coefficients) of complements of stratified complex analytic varieties depending on parameters is studied.
Vassiliev, Victor A.
core  

Scattering Theory and $\mathcal{P}\mathcal{T}$-Symmetry

open access: yes, 2018
We outline a global approach to scattering theory in one dimension that allows for the description of a large class of scattering systems and their $\mathcal{P}$-, $\mathcal{T}$-, and $\mathcal{P}\mathcal{T}$-symmetries.
A Messiah   +63 more
core   +1 more source

The Combinatorics of Plane Curve Singularities [PDF]

open access: yesHandbook of Geometry and Topology of Singularities I, 2019
This survey may be seen as an introduction to the use of toric and tropical geometry in the analysis of plane curve singularities, which are germs (C, o) of complex analytic curves contained in a smooth complex analytic surface S.
E. G. Barroso   +2 more
semanticscholar   +1 more source

Protein pyrophosphorylation by inositol pyrophosphates — detection, function, and regulation

open access: yesFEBS Letters, EarlyView.
Protein pyrophosphorylation is an unusual signaling mechanism that was discovered two decades ago. It can be driven by inositol pyrophosphate messengers and influences various cellular processes. Herein, we summarize the research progress and challenges of this field, covering pathways found to be regulated by this posttranslational modification as ...
Sarah Lampe   +3 more
wiley   +1 more source

Detection of Complex Salient Regions

open access: yesEURASIP Journal on Advances in Signal Processing, 2008
The goal of interest point detectors is to find, in an unsupervised way, keypoints easy to extract and at the same time robust to image transformations. We present a novel set of saliency features based on image singularities that takes into account the ...
Petia Radeva   +2 more
doaj   +1 more source

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

open access: yesFEBS 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   +11 more
wiley   +1 more source

Modular Hamiltonians for future-perturbed states

open access: yesJournal of High Energy Physics
We develop a perturbative understanding of the modular Hamiltonian for a 2D CFT, divided into left and right half-spaces, with a weak local perturbation inserted in the future wedge.
Xiaole Jiang   +3 more
doaj   +1 more source

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