Results 91 to 100 of about 4,739,194 (334)

S-cone photoreceptors in the primate retina are functionally distinct from L and M cones

open access: yeseLife, 2019
Daylight vision starts with signals in three classes of cone photoreceptors sensitive to short (S), middle (M), and long (L) wavelengths. Psychophysical studies show that perceptual sensitivity to rapidly varying inputs differs for signals originating in
Jacob Baudin   +3 more
doaj   +1 more source

Slow Cone Reflectance Changes during Bleaching Determined by Adaptive Optics Scanning Laser Ophthalmoscope in Living Human Eyes. [PDF]

open access: yesPLoS ONE, 2015
To investigate the changes in the reflectance of human cone photoreceptors by an adaptive optics scanning laser ophthalmoscope (AO-SLO) during photobleaching.
Masakazu Hirota   +7 more
doaj   +1 more source

Mass Spectra of Supersymmetric Yang-Mills Theories in 1+1 Dimensions [PDF]

open access: yes, 1995
Physical mass spectra of supersymmetric Yang-Mills theories in 1+1 dimensions are evaluated in the light-cone gauge with a compact spatial dimension.
A. V. Smilga   +45 more
core   +2 more sources

Light Cones in Finsler Spacetime [PDF]

open access: yesCommunications in Mathematical Physics, 2014
Some foundational results on the geometry of Lorentz-Minkowski spaces and Finsler spacetimes are obtained. We prove that the local light cone structure of a reversible Finsler spacetime with more than two dimensions is topologically the same as that of Lorentzian spacetimes: at each point we have just two strictly convex causal cones which intersect ...
openaire   +5 more sources

Geodesic-light-cone coordinates and the Bianchi I spacetime [PDF]

open access: yes, 2016
The geodesic-light-cone (GLC) coordinates are a useful tool to analyse light propagation and observations in cosmological models. In this article, we propose a detailed, pedagogical, and rigorous introduction to this coordinate system, explore its gauge ...
P. Fleury, F. Nugier, G. Fanizza
semanticscholar   +1 more source

Vertically integrated spiking cone photoreceptor arrays for color perception

open access: yesNature Communications, 2023
The cone photoreceptors in our eyes selectively transduce the natural light into spiking representations, which endows the brain with high energy-efficiency color vision.
Xiangjing Wang   +12 more
semanticscholar   +1 more source

Characterization of Clinical Phenotype to Glial Fibrillary Acidic Protein Concentrations in Alexander Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To determine the concentration of glial fibrillary acidic protein (GFAP) in cerebrospinal fluid (CSF) and plasma in Alexander disease (AxD) and whether GFAP levels are predictive of disease phenotypes. Methods CSF and plasma were collected (longitudinally when available) from AxD participants and non‐AxD controls.
Amy T. Waldman   +9 more
wiley   +1 more source

Off-shell spinor-helicity amplitudes from light-cone deformation procedure [PDF]

open access: yes, 2016
A bstractWe study the consistency conditions for interactions of massless fields of any spin in four-dimensional flat space using the light-cone approach. We show that they can be equivalently rewritten as the Ward identities for the off-shell light-cone
D. Ponomarev
semanticscholar   +1 more source

Compressible Flow Exfoliation of Two‐Dimensional Nanomaterials: Insights Into Layer Separation Informed by Gas Dynamics

open access: yesAdvanced Engineering Materials, EarlyView.
This study elucidates the mechanism of compressible flow exfoliation for producing 2D hexagonal boron nitride (h‐BN). Fluid dynamics analysis reveals that acceleration‐driven aerodynamic shear forces, rather than shock waves alone, drive effective layer separation.
Md Farhadul Islam   +3 more
wiley   +1 more source

Energy momentum tensor on and off the light cone: exposition with scalar Yukawa theory

open access: yesJournal of High Energy Physics
We compute the gravitational form factors A i , D i and c ¯ i $$ {\overline{c}}_i $$ of the scalar Yukawa theory using both the light-cone and covariant perturbation theory at the one-loop level.
Xianghui Cao   +6 more
doaj   +1 more source

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