Results 51 to 60 of about 972,893 (286)

ECG Classification With Event-Driven Sampling

IEEE Access
Electrocardiogram (ECG) data’s high dimensionality challenges real-time arrhythmia classification. Our approach employs functional approximation to condense ECG recordings into a compact feature set for simpler classification using Chebyshev ...
Maryam Saeed, Olev Martens, Benoit Larras, Antoine Frappe, Deepu John, Barry Cardiff   +5 more
doaj   +1 more source

GMRES and the minimal polynomial [PDF]

BIT Numerical Mathematics, 1996
A qualitative model is presented for the convergence behaviour of GMRES for solving nonsingular systems of linear equations \(Ax=b\) in finite and infinite dimensions. If the eigenvalues of the matrix \(A\) consist of a single cluster point plus outliers then the convergence factor is bounded by the cluster radius.
Campbell, S. L., Ipsen, I. C. F., Kelley, C. T., Meyer, C. D.   +3 more
openaire   +1 more source

Relationship Between Neurologic Symptoms and Signs and FMR1 Genotype in Premutation Carriers

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background and Objectives Fragile X‐associated Tremor/Ataxia Syndrome (FXTAS) is the most severe late‐onset condition caused by a premutation in the FMR1 gene, characterized by expanded CGG triplet repeats of 55–200. Clinical presentations of FXTAS, including gait ataxia, kinetic tremor, cognitive decline, and rare Parkinsonism, are linked to ...
Flora Tassone, Freddy Chafota, Miguel E. Rentería, Randi J. Hagerman, Ellery Santos, Anna Atkinson, Nicholas G. Martin, Elsdon Storey, Danuta Z. Loesch   +8 more
wiley   +1 more source

Evaluation of Digital Technologies for Home‐Based Assessment in People With Amyotrophic Lateral Sclerosis

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Digital technologies hold promise for transforming healthcare by enhancing personalized treatments and offer valuable opportunities to improve patient care. Here, we evaluated several novel, self‐administered, home‐based, digital endpoints for their association with corresponding conventional standard clinical measures (primary) in ...
Arne Mueller, Vanessa Vallejo, Mónica Povedano Panadés, Orla Hardiman, Véronique Danel‐Brunaud, Senda Ajroud‐Driss, Philippe Couratier, Jeremy Shefner, Anna Gokey, Mike DiCesare, Erin Lennox, Jens Praestgaard, Lucie Brujin, Peggy Allred, Ram Miller   +14 more
wiley   +1 more source

Minimal Polynomials of Some Eta-Quotients Evaluated at CM Points

Mathematics
We study certain eta-quotients of weight zero evaluated at CM points of imaginary quadratic orders. Using the theory of extended form class groups, we show that these special values generate the corresponding ring class fields and we provide explicit ...
Ho Yun Jung
doaj   +1 more source

A Two‐Stage Questionnaire and Actigraphy Screening for iRBD in a Multicenter Retrospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Isolated rapid‐eye‐movement sleep behavior disorder is a prodromal marker of synucleinopathies. However, most cases remain undiagnosed due to the insufficient predictive value of questionnaires and limited access to confirmatory video‐polysomnography. We assessed a two‐stage screening strategy combining a brief questionnaire on rapid‐
Caleb A. Massimi, Giorgio Ricciardiello Mejia, Andre Metzger, Kang Hyun Ryu, Salonee Marwaha, Eva Grzegorczyk, Li Zhou, Eliana Jacobs, Boris Gilyadov, Claudia Kunney, Liqhwa Ncube, Ankit Parekh, Emmanuel Mignot, Fanny M. Elahi, Joseph Winer, Kathleen Poston, Andreas Brink‐Kjaer, Emmanuel H. During   +17 more
wiley   +1 more source

An effective method for calculating viscoelastic structural elements in mining using the Lanczos τ-method [PDF]

E3S Web of Conferences
A deformed plate of variable thickness with an elliptical hole is considered. The evolution of the stress state and the applied load P are investigated for a material exhibiting creep properties, where the tension δ of the rods connecting two rigid ...
Bugrim Olga, Tymchenko Svitlana, Klymenko Dina, Kagadiy Tetyana, Shporta Anna   +4 more
doaj   +1 more source

MINIMIZING POLYNOMIALS ON NONCOMPACT SETS

Acta Universitatis Apulensis, 2018
Summary: In this paper, the problem of minimizing a polymonial \(g_* = \inf\limits_{x \in S(F)}g(x)\) in the noncompact case is investigated. It is known that such problem is severely ill-posed. This paper studies the representation of a non-negative polynomial \(g\) on a noncompact semi-algebraic set \(S\) modulo its KKT (Karush-Kuhn-Tucker) ideal ...
Tri, P. V., Sy, T. V. Q.
openaire   +1 more source

T1 Over Squared Proton Density Ratio to Characterize Multiple Sclerosis Lesions

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Differentiating remyelinated from demyelinated lesions in MS remains challenging without histological confirmation. This study introduces the T1‐to‐PD2 ratio (TPR) imaging approach and evaluates its ability to characterize MS lesions alongside other quantitative MRI (qMRI) metrics. Methods Thirty individuals with MS (mean age: 47.5 ± 
Sarah J. Wright, Scotty G. McKay, Jean Ramos Bou, Fen Bao, Vivian B. Truong, Chenyang Li, Li Jiang, Anza B. Memon, E. Mark Haacke, Yulin Ge, Yongsheng Chen   +10 more
wiley   +1 more source

A Study of F_qR-Cyclic Codes and Their Applications in Constructing Quantum Codes

IEEE Access, 2020
Let R = Fq + uFq + vFq + uvFq, with u2 = u, v2 = v, uv = vu, where q = pm for a positive integer m and an odd prime p. We study the algebraic structure of FqR-cyclic codes of block length (r, s). These codes can be viewed as R[x]-submodules of Fq[x]/(xr -
Hai Q. Dinh, Sachin Pathak, Tushar Bag, Ashish Kumar Upadhyay, Warattaya Chinnakum   +4 more
doaj   +1 more source