Results 81 to 90 of about 7,510,132 (348)

Blow-up and global solutions to L^p norm preserving non-local flows [PDF]

open access: yesarXiv, 2009
In this paper, we study global existence and blow up properties to $L^p$ norm preserving non-local heat flows. We first study two kinds of $L^p$ norm preserving non-local flows and prove that these flows have the global solutions. Finally, we give a example to show that one kind of this heat flow may blow up in $L^{\infty}$ norm though its $L^p$ norm ...
arxiv  

Structural and mechanistic basis for the regulation of the chloroplast signal recognition particle by (p)ppGpp

open access: yesFEBS Letters, EarlyView.
LHCPs are transported to the thylakoid membrane via the (cp)SRP pathway. This process involves a transit complex of (cp)SRP43, (cp)SRP54 and LHCP, which interacts with (cp)FtsY and Alb3 at the membrane. GTP hydrolysis by (cp)SRP54 and (cp)FtsY triggers complex dissociation.
Victor Zegarra   +7 more
wiley   +1 more source

Volume-preserving exponential integrators [PDF]

open access: yesarXiv, 2018
As is known that various dynamical systems including all Hamiltonian systems preserve volume in phase space. This qualitative geometrical property of the analytical solution should be respected in the sense of Geometric Integration. This paper analyses the volume-preserving property of exponential integrators in different vector fields.
arxiv  

Preservation of log-Hölder coefficients of the vorticity in the transport equation [PDF]

open access: yesarXiv, 2021
We show that the log-H\"{o}lder coefficients of a solution to the transport equation is preserved in time.
arxiv  

STAT3 expression is reduced in cardiac pericytes in HFpEF and its loss reduces cellular adhesion and induces pericyte senescence

open access: yesFEBS Letters, EarlyView.
Heart failure with preserved ejection fraction (HFpEF) accounts for half of the heart failure cases. It is characterised by microvascular dysfunction, associated with reduced pericyte coverage and diminished STAT3 expression in pericytes. Loss of STAT3 impairs pericyte adhesion, promotes senescence, and activates a pro‐fibrotic gene program.
Leah Rebecca Vanicek   +15 more
wiley   +1 more source

Cold storage of liver microorgans in ViaSpan® and BG35 solutions. Study of ammonia metabolism during normothermic reoxygenation

open access: yesAnnals of Hepatology, 2014
Introduction. This work focuses on ammonia metabolism of Liver Microorgans (LMOs) after cold preservation in a normothermic reoxygenation system (NRS). We have previously reported the development of a novel preservation solution, Bes-Gluconate-PEG 35 kDa
María Dolores Pizarro   +5 more
doaj  

Bound-preserving discontinuous Galerkin methods with modified Patankar time integrations for chemical reacting flows [PDF]

open access: yesarXiv, 2022
In this paper, we develop bound-preserving discontinuous Galerkin (DG) methods for chemical reactive flows. There are several difficulties in constructing suitable numerical schemes. First of all, the density and internal energy are positive, and the mass fraction of each species is between 0 and 1.
arxiv  

Cytoplasmic delivery of antibodies through grafting a functional single complementarity‐determining region loop

open access: yesFEBS Letters, EarlyView.
We achieved cytoplasmic delivery of non‐cell‐penetrating IgGs by grafting a single functional complementarity‐determining region 1 (CDR1) from the light chain variable region (VL) of the cell‐internalizable 3D8 antibody. The engineered IgG acquired cell‐penetrating ability while maintaining antigen affinity, highlighting CDR1 grafting as a promising ...
Yerin Jeon   +5 more
wiley   +1 more source

Hypothermic preservation of rat liver microorgans (LMOs) in bes-gluconate solution. Protective effects of polyethyleneglycol (PEG) on total water content and functional viability

open access: yesAnnals of Hepatology, 2011
We have reported of an alternative solution to preserve hepatocytes that have three key components: gluconate, sucrose and an aminosulfonic acid (BGS solution). In order to extend the use of this solution to organs as the liver, we evaluate the effect of
Cecilia Mandolino   +4 more
doaj  

Energy-preserving continuous-stage Runge-Kutta-Nyström methods [PDF]

open access: yesarXiv, 2018
Many practical problems can be described by second-order system $\ddot{q}=-M\nabla U(q)$, in which people give special emphasis to some invariants with explicit physical meaning, such as energy, momentum, angular momentum, etc. However, conventional numerical integrators for such systems will fail to preserve any of these quantities which may lead to ...
arxiv  

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