Results 121 to 130 of about 99,371 (246)

Chronic and acute mediators of passive viscoelasticity in human skeletal muscle fibres

open access: yesExperimental Physiology, EarlyView.
Abstract The cellular viscoelastic modulus in skeletal muscle tissue responds dynamically to chronic stressors, such as age and exercise. Passive tissue mechanics can also be sensitive to acute stimuli, such as mechanical loading and/or activation‐induced muscle fatigue.
Grace E. Privett   +3 more
wiley   +1 more source

Eigenvalues of the Laplacian under the Ricci flow [PDF]

open access: yesRendiconti di Matematica e delle Sue Applicazioni, 2007
We derive, under a technical assumption, the first variation formula for the eigenvalues of the Laplacian on a closed manifold evolving by the Ricci flow and give some applications.
Luca Fabrizio Di Cerbo
doaj  

Ageing attenuates regional vasoconstriction during acute lowering of upper and lower limbs

open access: yesExperimental Physiology, EarlyView.
Abstract The venoarteriolar and myogenic response (VMR) is a non‐adrenergic, non‐baroreflex‐mediated mechanism that increases local vascular resistance and contributes to blood pressure (BP) regulation during orthostasis. Despite the importance of the VMR in human cardiovascular control, no information exists elucidating possible differences in the VMR
John D. Akins   +10 more
wiley   +1 more source

Entanglement entropy and the Ricci flow

open access: yesPhysics Letters B, 2007
We analyze the Ricci flow of a noncompact metric that describes a two-dimensional black hole. We consider entanglement entropy of a 2d black hole which is due to the quantum correlations between two subsystems: one is inside and the other is outside the black hole horizon.
openaire   +3 more sources

The RhoA guanine exchange factor ABR: a glucose‐sensitive mediator of actin reorganization in feto‐placental arterial endothelial cells altered by gestational diabetes mellitus

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Schematic representation of proposed relationship between hyperglycaemia, gestational diabetes mellitus (GDM), active BCR‐related (ABR), RhoA and actin organization of feto‐placental arterial endothelial cells (fpEC). Hyperglycaemia upregulates ABR, which in turn increases RhoA activation.
Silvija Tokic   +9 more
wiley   +1 more source

Determining properties of human‐induced pluripotent stem cell‐derived cardiomyocytes using spatially resolved electromechanical metrics

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend In this study, we use human‐induced pluripotent stem cell‐derived cardiomyocyte (hiPSC‐CM) experiments and computational modelling to identify the mechanism of action of drug compounds. In the hiPSC‐CM experiments, optical measurements of cell collections are recorded in the baseline case and after drug exposure.
Karoline Horgmo Jæger   +4 more
wiley   +1 more source

Navigating string theory field space with geometric flows

open access: yesJournal of High Energy Physics
The Swampland Distance Conjecture postulates the emergence of an infinite tower of massless states when approaching infinite-distance points in moduli space.
Saskia Demulder   +2 more
doaj   +1 more source

Noncommutative Root Space Witt, Ricci Flow, and Poisson Bracket Continual Lie Algebras

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2009
We introduce new examples of mappings defining noncommutative root space generalizations for the Witt, Ricci flow, and Poisson bracket continual Lie algebras.
Alexander Zuevsky
doaj   +1 more source

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