Results 11 to 20 of about 72,141 (255)

Effective theories for circuits and automata [PDF]

open access: yesChaos: An Interdisciplinary Journal of Nonlinear Science, 2011
Abstracting an effective theory from a complicated process is central to the study of complexity. Even when the underlying mechanisms are understood, or at least measurable, the presence of dissipation and irreversibility in biological, computational, and social systems makes the problem harder.
openaire   +4 more sources

A general waveguide circuit theory

open access: yesJournal of Research of the National Institute of Standards and Technology, 1992
This work generalizes and extends the classical circuit theory of electromagnetic waveguides. Unlike the conventional theory, the present formulation applies to all waveguides composed of linear, isotropic material, even those involving lossy conductors and hybrid mode fields, in a fully rigorous way.
Marks, Roger B., Williams, Dylan F.
openaire   +2 more sources

Distinct patterns of speech disorder in early-onset and late-onset de-novo Parkinson’s disease

open access: yesnpj Parkinson's Disease, 2021
Substantial variability and severity of dysarthric patterns across Parkinson’s disease (PD) patients may reflect distinct phenotypic differences. We aimed to compare patterns of speech disorder in early-onset PD (EOPD) and late-onset PD (LOPD) in drug ...
Jan Rusz   +4 more
doaj   +1 more source

Short-term effect of dopaminergic medication on speech in early-stage Parkinson’s disease

open access: yesnpj Parkinson's Disease, 2022
The effect of dopaminergic medication on speech has rarely been examined in early-stage Parkinson’s disease (PD) and the respective literature is inconclusive and limited by inappropriate design with lack of PD control group.
Tereza Tykalova   +4 more
doaj   +1 more source

Automated video-based assessment of facial bradykinesia in de-novo Parkinson’s disease

open access: yesnpj Digital Medicine, 2022
Even though hypomimia is a hallmark of Parkinson’s disease (PD), objective and easily interpretable tools to capture the disruption of spontaneous and deliberate facial movements are lacking.
Michal Novotny   +5 more
doaj   +1 more source

A High-Speed 130-nm SiGe BiCMOS Integrated Duobinary Driver for Data Rate Capacity Enhancement in VCSEL-Based Optical Links

open access: yesIEEE Access
Circumventing the data rate bottleneck due to the bandwidth limitation of optical devices is an imperative for today’s fiber-optic communication systems.
Alexandru Giuglea   +4 more
doaj   +1 more source

Improving clinical refractive results of cataract surgery by machine learning [PDF]

open access: yesPeerJ, 2019
Aim To evaluate the potential of the Support Vector Machine Regression model (SVM-RM) and Multilayer Neural Network Ensemble model (MLNN-EM) to improve the intraocular lens (IOL) power calculation for clinical workflow.
Martin Sramka   +3 more
doaj   +2 more sources

VASIR: Open-Source Android Application for Visual Analog Scale Intelligibility Rating of Dysarthric Speech

open access: yesIEEE Access
We present an open-source application for mobile devices called VASIR that provides a reliable and sensitive tool for accessible intelligibility rating using visual analog scales. VASIR is validated by examining the intelligibility in 23 Parkinson’
Petr Kryze   +7 more
doaj   +1 more source

Critical Design Considerations on Continuous Frequency Modulation Localization Systems

open access: yesIET Signal Processing
Real-time locating systems (RTLSs) suffer from clock synchronization inaccuracy among their distributed reference nodes. Conventional systems require periodic time synchronization and typically necessitate a two-way ranging (TWR) clock synchronization ...
Belal Al-Qudsi   +4 more
doaj   +1 more source

Comparative Evaluation of Hemodiafiltration, Hemoperfusion, and Standard Hemodialysis on Efficacy, Inflammatory Control, Dialysis Adequacy, and Safety in End‐Stage Renal Disease: A Prospective Observational Study

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Chronic micro‐inflammation in patients with end‐stage renal disease (ESRD) is a significant driver of cardiovascular complications and diminished quality of life. While standard hemodialysis (SHD) effectively manages small‐molecule clearance, its ability to remove medium‐to‐large uremic toxins—the primary catalysts of systemic ...
Hongwei Zuo   +5 more
wiley   +1 more source

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