Results 301 to 310 of about 3,788,707 (345)
Some of the next articles are maybe not open access.

Autism Spectrum Disorder: A Review.

Journal of the American Medical Association (JAMA), 2023
Importance Autism spectrum disorder (ASD), characterized by deficits in social communication and the presence of restricted, repetitive behaviors or interests, is a neurodevelopmental disorder affecting approximately 2.3% children aged 8 years in the US ...
T. Hirota, B. King
semanticscholar   +1 more source

Secure spread spectrum watermarking for multimedia

IEEE Transactions on Image Processing, 1997
This paper presents a secure (tamper-resistant) algorithm for watermarking images, and a methodology for digital watermarking that may be generalized to audio, video, and multimedia data.
I. Cox   +3 more
semanticscholar   +1 more source

Power spectrum analysis of heart rate fluctuation: a quantitative probe of beat-to-beat cardiovascular control.

Science, 1981
Power spectrum analysis of heart rate fluctuations provides a quantitative noninvasive means of assessing the functioning of the short-term cardiovascular control systems.
S. Akselrod   +5 more
semanticscholar   +1 more source

The dielectric properties of biological tissues: III. Parametric models for the dielectric spectrum of tissues.

Physics in Medicine and Biology, 1996
A parametric model was developed to describe the variation of dielectric properties of tissues as a function of frequency. The experimental spectrum from 10 Hz to 100 GHz was modelled with four dispersion regions.
S. Gabriel, R. Lau, C. Gabriel
semanticscholar   +1 more source

The spectrum of inflammatory responses

Science, 2021
Description Inflammation is an integral part of animal biology. It provides critical protection from adverse environmental factors by enforcing the defense of homeostasis and the functional and structural integrity of tissues and organs.
R. Medzhitov
semanticscholar   +1 more source

Spectrum and Pseudo-Spectrum [PDF]

open access: possible, 2019
In this book all Hilbert spaces will be assumed to separable for simplicity. In this section we review some basic definitions and properties; we refer to Kato (Perturbation theory for linear operators, Die Grundlehren der mathematischen Wissenschaften, Band 132. Springer, New York, 1966), Reed and Simon (Methods of modern mathematical physics.
openaire   +1 more source

High-resolution frequency-wavenumber spectrum analysis

, 1969
The output of an array of sansors is considered to be a homogeneous random field. In this case there is a spectral representation for this field, similar to that for stationary random processes, which consists of a superposition of traveling waves.
J. Capon
semanticscholar   +1 more source

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