Results 81 to 90 of about 1,459,866 (304)

The Influence of Motion and Stress on Optical Fibers

open access: yes, 2013
We report on extensive testing carried out on the optical fibers for the VIRUS instrument. The primary result of this work explores how 10+ years of simulated wear on a VIRUS fiber bundle affects both transmission and focal ratio degradation (FRD) of the
Anderson, Seth   +15 more
core   +1 more source

Brainstem and Cerebellar Volume Loss and Associated Clinical Features in Progressive Supranuclear Palsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Introduction Progressive Supranuclear Palsy (PSP) is a neurodegenerative ‘tauopathy’ with predominating pathology in the basal ganglia and midbrain. Caudal tau spread frequently implicates the cerebellum; however, the pattern of atrophy remains equivocal.
Chloe Spiegel   +8 more
wiley   +1 more source

Dietary Fiber [PDF]

open access: yesAdvances in Nutrition, 2011
Nancy D Turner, Joanne R Lupton
openaire   +3 more sources

Diffusion Spectrum Imaging Maps Early Axonal Loss and a Unique Progressive Signal in Neuronal Intranuclear Inclusion Disease

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To delineate specific in vivo white matter pathology in neuronal intranuclear inclusion disease (NIID) using diffusion spectrum imaging (DSI) and define its clinical relevance. Methods DSI was performed on 42 NIID patients and 38 matched controls.
Kaiyan Jiang   +10 more
wiley   +1 more source

Direct electronetting of high-performance membranes based on self-assembled 2D nanoarchitectured networks

open access: yesNature Communications, 2019
Nanofibrous networks are applied in environmental protection and electrical or bioengineering and experience a great demand, but the design of these functional materials is challenging.
Shichao Zhang   +5 more
doaj   +1 more source

Fiber optic crossbar switch for automatically patching optical signals [PDF]

open access: yes, 1983
A system for automatically optically switching fiber optic data signals between a plurality of input optical fibers and selective ones of a plurality of output fibers is described.
Bell, C. H.
core   +1 more source

Riemannian submersions with discrete spectrum

open access: yes, 2010
We prove some estimates on the spectrum of the Laplacian of the total space of a Riemannian submersion in terms of the spectrum of the Laplacian of the base and the geometry of the fibers.
Bessa, G. Pacelli   +2 more
core   +1 more source

Fiber and Dietary Fiber

open access: yesNippon Shokuhin Kagaku Kogaku Kaishi, 2011
繊維質とは,自然に放置しても分解されにくく,動物によっても消化されにくい成分のことを指す.本来,ヒトの消化酵素で消化されない繊維質は,生理的意義が低い非栄養素とされてきたが,難消化性の繊維質はヒトの健康維持に重要な役割を果たすことが次第に知られるようになった.食物繊維とは多糖類のひとつであるが,日本食品標準成分表2010では「ヒトの消化酵素で消化されない食品中の難消化性成分の総体」と定義されている.ヒトの炭水化物消化酵素であるアミラーゼは,デンプンを構成している糖分子のα結合を分解できるが,食物繊維を形成しているβ結合を分解する能力がない.従来,食物繊維はエネルギー源にならないと考えられていたが,実際は,消化されない食物繊維の一部が腸内細菌により発酵分解されて短鎖脂肪酸とガスになるため ...
openaire   +2 more sources

A 73‐Year‐Old Man With Several Years of Difficulty Climbing Stairs and Frequent Tripping

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT A 73‐year‐old man presented with progressive weakness and atrophy predominantly affecting the distal finger flexors and quadriceps muscles. Electrophysiological studies demonstrated mixed myogenic and neurogenic features. Muscle MRI showed inflammatory changes, and muscle biopsy revealed granulomatous myositis with histologic features ...
Mehmet Can Sari   +3 more
wiley   +1 more source

Inversion of Circularly Polarized Luminescence in the Left‐Handed Chitosan‐Templated Co‐assemblies

open access: yesAdvanced Science
Circularly polarized luminescence (CPL) materials are attractive due to their unique applications in fields such as 3D displays, information encryption, and chiroptical switches.
Yu An   +9 more
doaj   +1 more source

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