Results 71 to 80 of about 4,696,479 (281)

Auditory Hair Cell Mechanotransduction Channels Dynamically Shape the Mechanical Properties of Their Membrane Environment

open access: yesAdvanced Science, EarlyView.
This work shows, for the first time, that the stereocilia membrane in cochlear hair cells is dynamically regulated by the mechanotransduction channel to impact the membrane mechanical properties. This work provides direct evidence that the opening and closing associated with the MET channel is regulating the membrane viscosity suggesting that the MET ...
Shefin Sam George, Anthony J. Ricci
wiley   +1 more source

Eguchi–Hanson Singularities in U(2)-Invariant Ricci Flow [PDF]

open access: yesPeking Mathematical Journal, 2019
We show that a Ricci flow in four dimensions can develop singularities modeled on the Eguchi–Hanson space. In particular, we prove that starting from a class of asymptotically cylindrical U (2)-invariant initial metrics on $$TS^2$$ T S 2 , a Type II ...
Alexander Appleton
semanticscholar   +1 more source

On the Uniqueness of Ricci Flow

open access: yesThe Journal of Geometric Analysis, 2018
All comments are welcome!
openaire   +2 more sources

Schizophrenia Genetics Modulates Clinical Depressive Features

open access: yesAmerican Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Schizophrenia (SCZ) genetic liability, quantified by polygenic scores (PGS), may influence clinical phenotypes in major depressive disorder (MDD). We investigated the effect of the SCZ‐PGS derived from the latest SCZ genome‐wide association study (GWAS) on MDD symptom severity, comorbidities, and treatment outcomes.
Alessandro Serretti   +13 more
wiley   +1 more source

Evolution of a geometric constant along the Ricci flow

open access: yesJournal of Inequalities and Applications, 2016
In this paper, we establish the first variation formula of the lowest constant λ a b ( g ) $\lambda_{a}^{b}(g)$ along the Ricci flow and the normalized Ricci flow, such that to the following nonlinear equation there exist positive solutions: − Δ u + a u ...
Guangyue Huang, Zhi Li
doaj   +1 more source

Propagation of symmetries for Ricci shrinkers

open access: yesAdvanced Nonlinear Studies, 2023
We will show that if a gradient shrinking Ricci soliton has an approximate symmetry on one scale, this symmetry propagates to larger scales. This is an example of the shrinker principle which roughly states that information radiates outwards for ...
Colding Tobias Holck   +1 more
doaj   +1 more source

Mean curvature flow in a Ricci flow background

open access: yes, 2012
Following work of Ecker, we consider a weighted Gibbons-Hawking-York functional on a Riemannian manifold-with-boundary. We compute its variational properties and its time derivative under Perelman's modified Ricci flow.
B. Kleiner   +14 more
core   +1 more source

The Ricci flow for nilmanifolds

open access: yesJournal of Modern Dynamics, 2010
We consider the Ricci flow for simply connected nilmanifolds, which translates to a Ricci flow on the space of nilpotent metric Lie algebras. We consider the evolution of the inner product and the evolution of structure constants, as well as the evolution of these quantities modulo rescaling.
openaire   +2 more sources

Targeted Medical Therapies for Vascular Anomalies: A Clinical Review

open access: yesAmerican Journal of Medical Genetics Part C: Seminars in Medical Genetics, EarlyView.
ABSTRACT Vascular anomalies represent a broad spectrum of disorders characterized by aberrant blood or lymphatic vessel development, which can lead to complex clinical phenotypes. Historically, vascular anomalies were classified solely on the basis of their clinical and histopathologic features.
Whitney Eng
wiley   +1 more source

A design tool for globally developable discrete architectural surfaces using Ricci flow

open access: yesJapan Architectural Review, 2023
This paper presents an approach for the design of discrete architectural surfaces that are globally developable; that is, having zero Gaussian curvature at every interior node.
Jingyao Zhang, Makoto Ohsaki
doaj   +1 more source

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