Results 61 to 70 of about 309,181 (334)
Rank-structured QR for Chebyshev rootfinding [PDF]
arXiv, 2020 We consider the computation of roots of polynomials expressed in the Chebyshev basis. We extend the QR iteration presented in [Eidelman, Y., Gemignani, L., and Gohberg, I., Numer. Algorithms, 47.3 (2008): pp. 253-273] introducing an aggressive early deflation strategy, and showing that the rank-structure allows to parallelize the algorithm avoiding ...
arxiv
A method for context-based adaptive QRS clustering in real-time [PDF]
, 2014 Continuous follow-up of heart condition through long-term electrocardiogram monitoring is an invaluable tool for diagnosing some cardiac arrhythmias. In such context, providing tools for fast locating alterations of normal conduction patterns is mandatory and still remains an open issue. This work presents a real-time method for adaptive clustering QRS
arxiv +1 more source
Drug Testing and Analysis, EarlyView.This study describes the pharmacokinetics of ethanol metabolites following intravenous and oral administration to horses. Based on rapid metabolism, ethyl glucuronide is the best candidate for monitoring of illicit administration to performance horses.
Heather K. Knych +4 more
wiley +1 more source
Fetal Heart Rate estimation on non Invasive ECG
TecnoLógicas, 2013 This paper describes a method for locating QRS complex in noninvasive FECG, using techniques based on MECG cancellation, and Principal Component Analysis.
Luis O. Sarmiento-Alvarez +3 more
doaj
Drug Testing and Analysis, EarlyView.Regarding cardiovascular effects, DMH decreased vascular reactivity to phenylephrine and acetylcholine. We observed that the combination of DPH and 8‐Cl‐T was identified as the responsible for increasing blood pressure and heart rate in the biological model used.
Jazmín Flores‐Monroy +3 more
wiley +1 more source
Discrete Wavelet Transform Based Algorithm for Recognition of QRS Complexes [PDF]
World of Computer Science and Information Technology Journal
(WCSIT) ; ISSN: 2221-0741; Vol. 4, No. 9, 127-132, 2014, 2017 This paper proposes the application of Discrete Wavelet Transform (DWT) to detect the QRS (ECG is characterized by a recurrent wave sequence of P, QRS and T-wave) of an electrocardiogram (ECG) signal. Wavelet Transform provides localization in both time and frequency.
arxiv
Application of the Hidden Markov Model for determining PQRST complexes in electrocardiograms [PDF]
arXiv, 2020 The application of the hidden Markov model with various parameters in the segmentation task of QRS, ST, T, P, PQ, ISO complexes of electrocardiograms is considered. Models were trained using the Viterbi algorithm using the QT Database. For comparison, the Pan-Tompkins algorithm for searching for the duration of QRS complexes was modified.
arxiv
The QRS Complex Detection Approach
, 2018 {"references": ["Mr. Vyankatesh S. Thorat, Dr. Suresh D. Shirbahadurkar, Mrs. Vaishali V. Thorat, \"Study and Literature Survey for Classification of Cardiac Arrhythmia With Respect to ECG and HRV Signal\", International Journal of Advanced Research in Computer and Communication Engineering, Vol. 5, Issue 4, April 2016", "V S Waydande, Prof. A N Jadhav,
openaire +3 more sources
Inter‐atrial block as a predictor of adverse outcomes in patients with HFpEF
ESC Heart Failure, EarlyView.Abstract Aims Inter‐atrial block (IAB), a marker of electrical atrial dysfunction, is associated with an increased risk of atrial fibrillation (AF) and adverse events in various populations. The prognostic impact of IAB in heart failure (HF) with preserved ejection fraction (HFpEF) remains unknown.
Jerremy Weerts +11 more
wiley +1 more source
ESC Heart Failure, EarlyView.Abstract Aims Cardiac resynchronization therapy (CRT) is guideline recommended for the treatment of symptomatic heart failure (HF) with reduced left ventricular ejection fraction and prolonged QRS. However, patients with common comorbidities, such as persistent/permanent atrial fibrillation (AF), are often under‐represented in clinical trials.
Ignacio García‐Bolao +17 more
wiley +1 more source