Results 41 to 50 of about 6,143,947 (388)
Vortex dynamics under pulsatile flow in axisymmetric constricted tubes
Papers in Physics, 2020 Improved understanding of how vortices develop and propagate under pulsatile flow can shed important light on the mixing and transport processes occurring in such systems, including the transition to turbulent regime. For example, the characterization of
Nicasio Barrere +4 more
doaj +1 more source
, 2015 The influence of fixed temperature and fixed heat flux thermal boundary conditions on rapidly rotating convection in the plane layer geometry is investigated for the case of stress-free mechanical boundary conditions. It is shown that whereas the leading
Calkins, Michael A. +5 more
core +1 more source
Boundary towers of layers for some supercritical problems [PDF]
, 2013 We show that in some suitable torus-like domains D some supercritical elliptic problems have an arbitrary large number of sign-changing solutions with alternate positive and negative layers which concentrate at different rates along a k-dimensional ...
Kim, Seunghyeok, Pistoia, Angela
core +1 more source
Time after time – circadian clocks through the lens of oscillator theory
FEBS Letters, EarlyView.Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo +2 more
wiley +1 more source
AIMS Mathematics, 2019 We consider the Euler–Voigt equations in a smooth bounded domain as an approximation for the 3D Euler equations. We show that the solutions of the Voigt equations are global, do not smooth out the data, and converge to the solutions of the Euler ...
Luigi C. Berselli, Davide Catania
doaj +1 more source
The newfound relationship between extrachromosomal DNAs and excised signal circles
FEBS Letters, EarlyView.Extrachromosomal DNAs (ecDNAs) contribute to the progression of many human cancers. In addition, circular DNA by‐products of V(D)J recombination, excised signal circles (ESCs), have roles in cancer progression but have largely been overlooked. In this Review, we explore the roles of ecDNAs and ESCs in cancer development, and highlight why these ...
Dylan Casey, Zeqian Gao, Joan Boyes
wiley +1 more source
Reduction of a model for sodium exchanges in kidney nephron
Networks and Heterogeneous Media, 2021 This work deals with a mathematical analysis of sodium's transport in a tubular architecture of a kidney nephron. The nephron is modelled by two counter-current tubules.
Marta Marulli +2 more
doaj +1 more source
Extension of Matched Asymptotic Method to Fractional Boundary Layers Problems
, 2014 We were concerned with the description of the boundary layers problems within the scope of fractional calculus. However, we will note that one of the main methods used to solve these problems is the matched asymptotic method.
A. Atangana, E. D. Goufo
semanticscholar +1 more source
FEBS Letters, EarlyView.This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva +5 more
wiley +1 more source
Hairpin vortices in turbulent boundary layers
, 2014 The present work addresses the question whether hairpin vortices are a dominant feature of near-wall turbulence and which role they play during transition.
G. Eitel-Amor, O. Flores, P. Schlatter
semanticscholar +1 more source