Results 81 to 90 of about 350,893 (316)

Curvature-Induced One-Dimensional Phonon Polaritons at Edges of Folded Boron Nitride Sheets

open access: yes, 2022
Generation and manipulation of phonon polaritons are of paramount importance for understanding the interaction between an electromagnetic field and dielectric materials and furthering their application in mid-infrared optical communication.
Shuopei Wang (3632776)   +11 more
core   +2 more sources

High-Myopia Diagnosis by Reciprocal of Circle Radius in Choroidal Image

open access: yesOptics
Light-emitting electronic devices are widely used at present, and this increases the risk of myopia. Thus, the early identification of myopia and the prevention of further exacerbation has become an essential issue in ophthalmology.
Shuo-Tsung Chen   +6 more
doaj   +1 more source

On curvature and similarity.

open access: yesMichigan Mathematical Journal, 1983
Let \(B_ 1(\Omega)\) denote the class of bounded Hilbert space operators T such that \(T-\lambda I\) is onto and has one dimensional kernel for \(\lambda \in \Omega\) and such that \(\bigvee_{\lambda \in \Omega}\ker(T- \lambda I)\) is dense in the Hilbert space.
Clark, Douglas N., Misra, Gadadhar
openaire   +2 more sources

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

open access: yesFEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace   +6 more
wiley   +1 more source

The volume entropy of a surface decreases along the Ricci flow [PDF]

open access: yes, 2004
The volume entropy, h(g), of a compact Riemannian manifold (M,g) measures the growth rate of the volume of a ball of radius R in its universal cover.
Manning, Anthony, ANTHONY MANNING
core   +1 more source

From mice to humans—divergent strategies for intestinal homeostasis and regeneration

open access: yesFEBS Letters, EarlyView.
Recent advances such as organoid genome editing, xenotransplantation, imaging, and whole‐genome sequencing have enabled direct studies of human intestinal stem cells (ISCs). These studies reveal species‐specific features, including slower ISC proliferation, distinct injury responses, slower somatic mutation accumulation in humans, and an inverse ...
Keiko Ishikawa   +2 more
wiley   +1 more source

Phosphoinositides and inositol phosphates as molecular glues

open access: yesFEBS Letters, EarlyView.
Inositol phosphates (IPs) and phosphoinositides (PIPs) regulate diverse eukaryotic processes. Beyond recruiting signaling proteins or acting as structural cofactors, recent studies suggest they mediate protein–protein interactions as natural molecular glues.
Aleshia Seaton‐Terry   +9 more
wiley   +1 more source

Curvature of Plane Fractional Analytic Curve

open access: yes, 2022
: In this paper, based on Jumarie type of Riemann Liouville (R-L) fractional calculus, we mainly study the curvature of plane fractional analytic curve. A new multiplication of fractional analytic functions plays an important role in this article.
Chii-Huei Yu
core   +1 more source

The Curve Shortening Flow in the Metric-Affine Plane

open access: yesMathematics, 2020
We investigated, for the first time, the curve shortening flow in the metric-affine plane and prove that under simple geometric condition (when the curvature of initial curve dominates the torsion term) it shrinks a closed convex curve to a “round point”
Vladimir Rovenski
doaj   +1 more source

PARK(ing) time–How park deficiency affects the biological clock in a Drosophila model of Parkinson's disease

open access: yesFEBS Letters, EarlyView.
Drosophila park mutants serve as a model for Parkinson's disease. We used this strain to investigate the connection between oxidative stress and the circadian clock mechanism. We showed that increased oxidative stress affects the physiology of pacemaker cells, disrupting their daily structural plasticity. Lack of rhythmic signaling from pacemaker cells
Kamila Zientara   +3 more
wiley   +1 more source

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