Results 31 to 40 of about 6,111 (258)

On Solutions of an Extended Nonlocal Nonlinear Schrödinger Equation in Plasmas

open access: yesMathematics, 2020
The parity-time symmetric nonlocal nonlinear Schrödinger equation with self-consistent sources (PTNNLSESCS) is used to describe the interaction between an high-frequency electrostatic wave and an ion-acoustic wave in plasmas.
Yehui Huang   +4 more
doaj   +1 more source

Traveling Wave Phenomena in Some Degenerate Reaction-Diffusion Equations

open access: yesJournal of Differential Equations, 1995
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Sánchez-Garduño, F, Maini, P
openaire   +4 more sources

Degenerate elliptic equations for resonant wave problems

open access: yesIMA Journal of Applied Mathematics, 2020
Abstract The modelling of resonant waves in 2D plasma leads to the coupling of two degenerate elliptic equations with a smooth coefficient $\alpha $ and compact terms. The coefficient $\alpha $ changes sign. The region where $\{\alpha>0\}$ is propagative, and the region where $\{\alpha <0\}$ is non propagative and elliptic.
Nicolopoulos, Anouk   +3 more
openaire   +3 more sources

A Non-degenerate Scattering Theory for the Wave Equation on Extremal Reissner–Nordström [PDF]

open access: yesCommunications in Mathematical Physics, 2020
AbstractIt is known that sub-extremal black hole backgrounds do not admit a (bijective) non-degenerate scattering theory in the exterior region due to the fact that the redshift effect at the event horizon acts as an unstable blueshift mechanism in the backwards direction in time. In the extremal case, however, the redshift effect degenerates and hence
Angelopoulos, Yannis   +2 more
openaire   +4 more sources

Structural and biochemical analysis of a B12 superbinder

open access: yesFEBS Letters, EarlyView.
BtuG proteins are vitamin B12 scavengers in Bacteroides thetaiotaomicron, a dominant human gut bacterium. We present crystal structures of three BtuG homologs bound to cobalamin and its precursor cobinamide, revealing picomolar binding affinities, among the highest known for any natural protein.
Jose M. Martinez Felices   +3 more
wiley   +1 more source

The Nonlinear Magnetosonic Waves in Magnetized Dense Plasma for Quantum Effects of Degenerate Electrons

open access: yesEast European Journal of Physics, 2021
The nonlinear magnetosonic solitons are investigated in magnetized dense plasma for quantum effects of degenerate electrons in this research work.
Neelam Rani, Manikant Yadav
doaj  

Extracellular matrix remodeling and immune reprogramming drive residual tumor progression of liver cancer after incomplete microwave ablation

open access: yesMolecular Oncology, EarlyView.
Incomplete microwave ablation (iMWA) of liver cancer triggers a biphasic progression in residual tumors. At Day 3, the microenvironment is characterized by acute inflammatory responses and extracellular matrix (ECM) remodeling. By Day 14, a profound shift occurs toward oncogenic signal transduction and immunosuppression, marked by macrophage ...
Yu Liu   +9 more
wiley   +1 more source

Importin 7 mediates the nuclear import of HIV‐1 integrase via a specific interacting interface

open access: yesFEBS Open Bio, EarlyView.
HIV‐1 integrase enables viral DNA integration into the host genome. By binding to the core domain of the host protein Importin 7 via its C‐terminal domain, the integrase is transported across the nuclear membrane into the nucleus, where integration of the viral genome into host DNA takes place. This translocation is a critical step for subsequent viral
Juana Bana   +5 more
wiley   +1 more source

On the existence and coercive estimates of solutions to the Dirichlet problem for a class of third-order differential equations

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы
As you know, the third order partial differential equation is one of the basic equations of wave theory. For example, in particular, a linearized Korteweg-de Vries type equation with variable coefficients models ion-acoustic waves into plasma and ...
А.О. Сулеймбекова   +1 more
doaj   +1 more source

Traveling Wave Solutions of Degenerate Coupled KdV Equation

open access: yes, 2013
We give a detailed study of the traveling wave solutions of $(\ell=2)$ Kaup-Boussinesq type of coupled KdV equations. Depending upon the zeros of a fourth degree polynomial, we have cases where there exist no nontrivial real solutions, cases where asymptotically decaying to a constant solitary wave solutions, and cases where there are periodic ...
Gurses, M., Pekcan, A.
openaire   +3 more sources

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