Results 51 to 60 of about 91,659 (256)

Organizing the interface—Plasma membrane architecture and receptor dynamics in virus‐cell interactions

open access: yesFEBS Letters, EarlyView.
Plasma membranes contain dynamic nanoscale domains that organize lipids and receptors. Because viruses operate at similar scales, this architecture shapes early infection steps, including attachment, receptor engagement, and entry. Using influenza A virus and HIV‐1 as examples, we highlight how receptor nanoclusters, multivalent glycan interactions ...
Jan Schlegel, Christian Sieben
wiley   +1 more source

Remarks on infinitely many solutions for a class of Schrödinger equations with sign-changing potential

open access: yesBoundary Value Problems, 2020
In this paper, we study the existence of infinitely many nontrivial solutions for the following semilinear Schrödinger equation: { − Δ u + V ( x ) u = f ( x , u ) , x ∈ R N , u ∈ H 1 ( R N ) , $$ \textstyle\begin{cases} -\Delta u+V(x)u=f(x,u), \quad x\in\
Rong Cheng, Yijia Wu
doaj   +1 more source

Studying Same-Sign Top Pair Production through Top-Higgs FCNC Interactions at the HL-LHC

open access: yesAdvances in High Energy Physics, 2022
We investigate the potential of the HL-LHC for discovering new physics effects via the same-sign top pair signatures. We focus on the semileptonic (electron and muon) decay of the top quarks and study the reach for a simplified model approach where top ...
O. M. Ozsimsek, V. Ari, O. Cakir
doaj   +1 more source

Positive solutions for semilinear elliptic systems with sign-changing potentials [PDF]

open access: yesAnalele Universitatii "Ovidius" Constanta - Seria Matematica, 2016
Abstract In this paper, we study the existence of positive solutions of the Dirichlet problem -Δu = λ p(x)f(u; v) ; -Δv = λ q(x)g(u; v); in D, and u = v = 0 on ∂ ∞ D, where D ⊂ Rn (n ≥ 3) is an C 1,1 -domain with compact boundary and λ
Zeddini Noureddine, Ben Dkhil Adel
openaire   +2 more sources

Epigenetic blind spots – the role of DNA methylation dynamics in stem cell‐based models of embryogenesis

open access: yesFEBS Letters, EarlyView.
Embryo‐like structures (stembryos) are an innovative tool, but they are hindered by experimental variability and limited developmental potential. DNA methylation is crucial for mammalian development, but its status in stembryo models is poorly characterized.
Sara Canil   +4 more
wiley   +1 more source

Multiple positive solutions for nonlocal problems involving a sign-changing potential

open access: yesElectronic Journal of Differential Equations, 2017
In this article we show the existence and multiplicity of positive solutions for the nonlocal problem with a sign-changing weight function, $$\displaylines{ -(a-b\int_{\Omega}|\nabla u|^2dx)\Delta u= f_\lambda(x)|u|^{q-2}u, \quad\text{in }\Omega ...
Chun-Yu Lei, Jia-Feng Suo
doaj  

Positive Solutions for Schrödinger-Poisson Systems with Sign-Changing Potential and Critical Growth

open access: yesJournal of Function Spaces, 2020
In this paper, we study the existence of positive solutions for Schrödinger-Poisson systems with sign-changing potential and critical growth. By using the analytic techniques and variational method, the existence and multiplicity of positive solutions ...
Pengfei He, Hongmin Suo
doaj   +1 more source

The human gut microbiome across the life course

open access: yesFEBS Letters, EarlyView.
Despite significant individual variation and continuous change throughout life, the human gut microbiome follows some life stage‐specific trends. This article provides a brief overview of how gut microbiome composition shifts across different phases of life. Created in BioRender. Özkurt, E. (2026) https://BioRender.com/8q4nrnc.
Alise J. Ponsero   +4 more
wiley   +1 more source

Combined effects of changing-sign potential and critical nonlinearities in Kirchhoff type problems

open access: yesElectronic Journal of Differential Equations, 2016
In this article, we study the existence and multiplicity of positive solutions for a class of Kirchhoff type problems involving changing-sign potential and critical growth terms.
Gao-Sheng Liu, Liu-Tao Guo, Chun-Yu Lei
doaj  

The Existence of Least Energy Sign-Changing Solution for Kirchhoff-Type Problem with Potential Vanishing at Infinity

open access: yesAdvances in Mathematical Physics, 2021
In this paper, we study the Kirchhoff-type equation: −a+b∫ℝ3  ∇u2dxΔu+Vxu=Qxfu,in ℝ3, where a, b>0, f∈C1ℝ3,ℝ, and V,Q∈C1ℝ3,ℝ+. Vx and Qx are vanishing at infinity.
Ting Xiao, Canlin Gan, Qiongfen Zhang
doaj   +1 more source

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