Results 1 to 10 of about 25,026,571 (299)

CoV-Spectrum: analysis of globally shared SARS-CoV-2 data to identify and characterize new variants [PDF]

open access: yesBioinform., 2021
Summary The CoV-Spectrum website supports the identification of new SARS-CoV-2 variants of concern and the tracking of known variants. Its flexible amino acid and nucleotide mutation search allows querying of variants before they are designated by a ...
Chaoran Chen   +6 more
semanticscholar   +1 more source

Singular Spectrum Analysis: Methodology and Comparison

open access: yesJournal of Data Science, 2021
In recent years Singular Spectrum Analysis (SSA), used as a powerful technique in time series analysis, has been developed and applied to many practical problems. In this paper, the performance of the SSA tech- nique has been considered by applying it to
Hossein Hassani
semanticscholar   +1 more source

Smoking, distress and COVID-19 in England: Cross-sectional population surveys from 2016 to 2020

open access: yesPreventive Medicine Reports, 2021
Changes in the prevalence of psychological distress among smokers during the COVID-19 pandemic in England may exacerbate existing health inequalities. This study examined the prevalence of psychological distress among smokers following the onset of the ...
Loren Kock   +5 more
doaj   +1 more source

Spectrum Analysis of Contact Network for Public Policy in a Pandemic

open access: yesIEEE Access, 2022
In a pandemic, in order to slow down the spread of the virus, protect national health, and maintain the normal operation of economic activities, countries around the world will formulate public policies to limit the number of citizens that can gather ...
Qi Xu
doaj   +1 more source

Does immediate smart feedback on therapy adherence and inhalation technique improve asthma control in children with uncontrolled asthma? A study protocol of the IMAGINE I study

open access: yesTrials, 2020
Background Many asthmatic children suffer from uncontrolled asthma with frequent exacerbations, despite an optimal treatment plan using inhalation medication.
Esther T. Sportel   +6 more
doaj   +1 more source

Microwave Spectroscopy as a Potential Tool for Color Grading Diamonds

open access: yesEnergies, 2021
A diamond’s color grading is a dominant property that determines its market value. Its color quality is dependent on the light transmittance through the diamond and is largely influenced by nitrogen contamination, which induces a yellow/brown tint within
Yossi Rabinowitz   +4 more
doaj   +1 more source

Can Pediatricians Assess Exercise-Induced Bronchoconstriction From Post-exercise Videos?

open access: yesFrontiers in Pediatrics, 2020
Objective: Exercise-induced bronchoconstriction (EIB) is a highly prevalent morbidity of childhood asthma and defined by a transient narrowing of the airways during or after physical exercise.
N. Lammers   +8 more
doaj   +1 more source

Bio-Inspired Radio-Frequency Source Localization Based on Cochlear Cross-Correlograms

open access: yesFrontiers in Neuroscience, 2021
This paper describes a bio-inspired radio frequency (RF) scene analysis system based on cross-correlating the outputs of two single-chip RF spectrum analyzers.
Yingying Wang   +2 more
doaj   +1 more source

The global prevalence of autism spectrum disorder: a comprehensive systematic review and meta-analysis

open access: yesItalian Journal of Pediatrics, 2022
Background Autism spectrum disorder (ASD) is one of the serious developmental disorders that is usually diagnosed below the age of three years. Although the severity of the disease’s symptoms varies from patient to patient, the ability to communicate ...
N. Salari   +7 more
semanticscholar   +1 more source

A Current Noise Cancellation Method Based on Fractional Linear Prediction for Bearing Fault Detection

open access: yesSensors, 2023
The stator current in an induction motor contains a large amount of information, which is unrelated to bearing faults. This information is considered as the noise component for the detection of bearing faults.
Kaijin Xu, Xiangjin Song
doaj   +1 more source

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