Results 41 to 50 of about 4,087,279 (255)

Weak-strong uniqueness for measure-valued solutions to the equations of quasiconvex adiabatic thermoelasticity

open access: yes, 2022
This article studies the equations of adiabatic thermoelasticity endowed with an internal energy satisfying an appropriate quasiconvexity assumption which is associated to the symmetrisability condition for the system.
Andreas Panagiotis Vikelis (6268091)   +2 more
core  

On global weak solutions of the Vlasov-Poisson equations with external magnetic field

open access: yesСовременная математика: Фундаментальные направления, 2023
We consider the first mixed problem for the system of Vlasov-Poisson equations with a given external magnetic field in a bounded domain. This problem describes the kinetics of high-temperature plasma in controlled thermonuclear fusion plants and is ...
Yu. O. Belyaeva, A. L. Skubachevskii
doaj   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Design and analysis strategies for robust microbiome ageing research

open access: yesFEBS Letters, EarlyView.
The gut microbiome changes with age and associates with age‐related morbidity and mortality, establishing it as a potential biomarker and intervention target for ageing. Realising this potential requires methodological rigour, yet distinguishing biological signals from methodological artefacts remains challenging across cohorts. This review provides an
Mark Olenik   +5 more
wiley   +1 more source

Weak solutions and weak-strong uniqueness for a thermodynamically consistent phase-field model [PDF]

open access: yes, 2019
In this paper we prove the existence of weak solutions for a thermodynamically consistent phase-field model introduced in [26] in two and three dimensions of space. We use a notion of solution inspired by [18], where the pointwise internal energy balance
Schimperna, Giulio   +2 more
core   +1 more source

Qualitative Analysis of a Control-Volume Fibre Coating Model

open access: yesJournal of Optimization, Differential Equations and Their Applications
This paper presents qualitative analysis of the solutions to a control-volume model for liquid films flowing down a vertical fibre. Time evolution of the free surface is governed by a coupled system of degenerate nonlinear partial differential equations,
R. M. Taranets, M. Chugunova
doaj   +1 more source

A New Proof of the Existence of Nonzero Weak Solutions of Impulsive Fractional Boundary Value Problems

open access: yesMathematics, 2020
The paper deals with the existence of at least two non zero weak solutions to a new class of impulsive fractional boundary value problems via Brezis and Nirenberg’s Linking Theorem. Finally, an example is presented to illustrate our results.
Asma Alharbi   +2 more
doaj   +1 more source

Reconstructing enzyme evolution by protein engineering

open access: yesFEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler   +2 more
wiley   +1 more source

Remark on regularity of weak solutions to the Navier-Stokes equations [PDF]

open access: yes, 2001
summary:Some results on regularity of weak solutions to the Navier-Stokes equations published recently in [3] follow easily from a classical theorem on compact operators. Further, weak solutions of the Navier-Stokes equations in the space $L^2(0,T,W^{1,3}
Kučera, Petr, Skalák, Zdeněk
core  

Decay of solutions of a nonlinear hyperbolic system in noncylindrical domain

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
In this paper we study the existence of solutions of the following nonlinear hyperbolic svstem|u″+A(t)u+b(x)G(u)=f   in   Qu=0   on   Σu(0)=uο   u1(0)=u1where Q is a noncylindrical domain of ℝn+1 with lateral boundary Σ, u−(u1,u2) a vector defined on Q, {
Tania Nunes Rabello
doaj   +1 more source

Home - About - Disclaimer - Privacy