Results 51 to 60 of about 1,969,022 (331)

The role of histone modifications in transcription regulation upon DNA damage

open access: yesFEBS Letters, EarlyView.
This review discusses the critical role of histone modifications in regulating gene expression during the DNA damage response (DDR). By modulating chromatin structure and recruiting repair factors, these post‐translational modifications fine‐tune transcriptional programmes to maintain genomic stability.
Angelina Job Kolady, Siyao Wang
wiley   +1 more source

General hyperbolic Kirchhoff model for the free vibration of elastic string on a flat surface

open access: yesApplied Mathematics in Science and Engineering
In this work, we investigate the existence of weak solutions for the general form of the hyperbolic Kirchhoff-type problem involving a free boundary modelling the free vibration of an elastic string on a flat surface.
Fatima Ezahra Bentata, Ievgen Zaitsev
doaj   +1 more source

Lozenge Tilings with Free Boundaries [PDF]

open access: yesLetters in Mathematical Physics, 2015
27 pages, 4 figures; version 2-- typos fixed, improved proofs and computations, incorporated referee's comments.
openaire   +3 more sources

A Free Boundary Problem for the Predator–Prey Model with Double Free Boundaries [PDF]

open access: yesJournal of Dynamics and Differential Equations, 2015
25 ...
Wang, Mingxin, Zhao, Jingfu
openaire   +3 more sources

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

open access: yesFEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Groundwater flow in a fissurised porous stratum

open access: yesNetworks and Heterogeneous Media, 2010
In [2] Barenblatt e.a. introduced a fluid modelfor groundwater flow in fissurised porous media.The system consists of two diffusion equations for the groundwaterlevels in, respectively, the porous bulk and the system of cracks.The equations are coupled ...
Michiel Bertsch, Carlo Nitsch
doaj   +1 more source

One dimensional parabolic free boundary problems [PDF]

open access: yes, 1975
The method of lines is used to approximate explicit and implicit free boundary problems for a linear one dimensional diffusion equation with a sequence of free boundary problems for ordinary differential equations.
Meyer, G H
core  

Free boundary problems in biology [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
In this paper, I review several free boundary problems that arise in the mathematical modelling of biological processes. The biological topics are quite diverse: cancer, wound healing, biofilms, granulomas and atherosclerosis. For each of these topics, I describe the biological background and the mathematical model, and then proceed to state ...
openaire   +3 more sources

ON BERNOULLI'S FREE BOUNDARY PROBLEM WITH A RANDOM BOUNDARY [PDF]

open access: yesInternational Journal for Uncertainty Quantification, 2017
This article is dedicated to the solution of Bernoulli’s exterior free boundary problem in the situation of a random interior boundary. We provide the theoretical background that ensures the well-posedness of the problem under consideration and describe two different frameworks to define the expectation and the deviation of the resulting annular domain.
Dambrine, Marc   +3 more
openaire   +3 more sources

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS 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

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