Results 51 to 60 of about 148,179 (227)

Математические модели для расчета технических характеристик цилиндрических антенн c продольными щелями [PDF]

open access: yes, 2010
В роботі для випадку випромінювання циліндричної хвилі з подовжніх щілин побудовані дискретні математичні моделі на базі гіперсингулярних та сингулярних інтегральних рівнянь чисельними методами дискретних особливостей, при цьому використані квадратурні ...
Духопельников, Сергей Владимирович
core  

TRANSVERSE BENDING OF A THIN PERFORATED PLATE WEAKENED BY RECTILINEAR CRACKS WITH END ZONES OF PLASTIC DEFORMATION

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2016
We give a problem solution for transverse bending of a thin plate, clamped at holes edges and weakened by doubly periodic system of rectilinear through cracks with unequal length, collinear to abscissa and ordinate axes plastic end zones.
B B Kazbekov
doaj  

The Aging Blood: Cellular Origins, Circulating Drivers, and Therapeutic Potential

open access: yesAging and Cancer, EarlyView.
As a conduit linking all organs, the blood system both reflects and actively drives systemic aging. This review highlights how circulating pro‐aging and antiaging factors and age‐associated hematopoietic stem cell dysfunction contribute to immunosenescence and multi‐organ decline, positioning the hematopoietic system as a target for aging intervention.
Hanqing He, Jianwei Wang
wiley   +1 more source

Visual Recovery Reflects Cortical MeCP2 Sensitivity in Rett Syndrome

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Rett syndrome (RTT) is a devastating neurodevelopmental disorder with developmental regression affecting motor, sensory, and cognitive functions. Sensory disruptions contribute to the complex behavioral and cognitive difficulties and represent an important target for therapeutic interventions.
Alex Joseph Simon   +12 more
wiley   +1 more source

A Spectral Method Based on Hahn Polynomials for Numerical Solution of Fractional Integro-Differential Equations with Weakly Singular Kernel

open access: yesپژوهش‌های ریاضی, 2020
Introduction Despite wide applications of constant order fractional derivatives, some systems require the use of derivatives whose order changes with respect to other parameters.
Farideh Salehi   +2 more
doaj  

Whole‐Body Pattern of Muscle Degeneration and Progression in Sarcoglycanopathies

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective To characterize whole‐body intramuscular fat distribution pattern in patients with sarcoglycanopathies and explore correlations with disease severity, duration and age at onset. Methods Retrospective, cross‐sectional, multicentric study enrolling patients with variants in one of the four sarcoglycan genes who underwent whole‐body ...
Laura Costa‐Comellas   +39 more
wiley   +1 more source

A fast and well-conditioned spectral method for singular integral equations [PDF]

open access: yes, 2016
We develop a spectral method for solving univariate singular integral equations over unions of intervals by utilizing Chebyshev and ultraspherical polynomials to reformulate the equations as almost-banded infinite-dimensional systems.
Olver, Sheehan   +1 more
core   +1 more source

Coherent States and a Path Integral for the Relativistic Linear Singular Oscillator

open access: yes, 2007
The SU(1,1) coherent states for a relativistic model of the linear singular oscillator are considered. The corresponding partition function is evaluated. The path integral for the transition amplitude between SU(1,1) coherent states is given.
Bagrov V G   +12 more
core   +1 more source

Evaluation of a novel EHR sidecar application to display RA clinical outcomes during clinic visits: results of a stepped‐wedge cluster randomized pragmatic trial

open access: yesArthritis Care &Research, Accepted Article.
Objective We developed a novel EHR sidecar application to visualize key rheumatoid arthritis (RA) outcomes, including disease activity, physical function, and pain, via a patient‐facing graphical interface designed for use during outpatient visits (“RA PRO dashboard”).
Gabriela Schmajuk   +16 more
wiley   +1 more source

Mechanical systems subjected to generalized nonholonomic constraints

open access: yes, 2000
We study mechanical systems subject to constraint functions that can be dependent at some points and independent at the rest. Such systems are modelled by means of generalized codistributions.
D. Martín de diego   +5 more
core   +1 more source

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