Results 61 to 70 of about 67,929 (263)

Biopsychosocial Determinants of Hand Function and Its Trajectories Over Five Years in Patients With Hand Osteoarthritis

open access: yesArthritis Care &Research, EarlyView.
Objective This study aimed to investigate hand function trajectories over five years in primary hand osteoarthritis (OA). Additionally, determinants of baseline and longitudinal hand function were assessed. Methods A total of 538 patients with both baseline and five‐year study visits were analyzed.
Annemiek V. E. M. Olde Meule   +4 more
wiley   +1 more source

Validation of mDurance, A Wearable Surface Electromyography System for Muscle Activity Assessment

open access: yesFrontiers in Physiology, 2020
The mDurance® system is an innovative digital tool that combines wearable surface electromyography (sEMG), mobile computing and cloud analysis to streamline and automatize the assessment of muscle activity.
Alejandro Molina-Molina   +7 more
doaj   +1 more source

Rheumatoid Arthritis and Coronary Artery Calcium Progression: A Case Cohort Analysis From ELSA‐Brasil

open access: yesArthritis Care &Research, EarlyView.
Objective To investigate the association between rheumatoid arthritis (RA) and coronary artery calcium (CAC) prevalence, incidence, and progression over four years in adults without prior cardiovascular disease. Methods A case‐cohort study within the Brazilian Longitudinal Study of Adult Health (ELSA‐Brasil) included 585 participants (86 patients with ...
Patrícia Fonseca Estrada   +7 more
wiley   +1 more source

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, EarlyView.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

A Variational Mode Decomposition-Based Framework With Parameter Optimization and Reference-Guided Feature Analysis for Epileptic EEG Signals

open access: yesIEEE Access
Epileptic EEG signals are inherently non-stationary and nonlinear, requiring robust signal decomposition and discriminative feature representations for reliable seizure analysis.
Nuri Ikizler
doaj   +1 more source

CMOS Integrated Circuits for RF-powered Wireless Temperature Sensor [PDF]

open access: yes, 2015
This dissertation presents original research contributions in the form of twelve scientific publications that represent advances related to RF-to-DC converters, reference circuits (voltage, current and frequency) and temperature sensors.
Chouhan, Shailesh Singh
core   +1 more source

Infrared radiofluorescence (IR-RF) dating: A review

open access: yes, 2021
International audienceLuminescence dating methods on natural minerals such as quartz and feldspars are indispensable for establishing chronologies in Quaternary Science. Commonly applied sediment dating methods are optically stimulated luminescence (OSL)
Schmidt, C.   +23 more
core   +1 more source

Composition‐Tuned Enhancement of the Anomalous Nernst Effect in FeCo–Pt Thin Films on Rigid and Flexible Substrates

open access: yesAdvanced Engineering Materials, EarlyView.
Disordered (Fe50Co50)1−xPtx thin films exhibit a pronounced anomalous Nernst effect (ANE) with a strong composition dependence on both rigid and flexible substrates. The transverse thermoelectric response peaks near 22.5 at.% Pt, accompanied by enhanced αxy/σxy scaling, thermal transport, and ANE sensitivity.
Mojtaba Mohammadi   +2 more
wiley   +1 more source

Design and optimization of grounded coplanar waveguide and chip cascade structure [PDF]

open access: yesJournal of Hebei University of Science and Technology
In order to solve the problem of decreasing transmission efficiency due to impedance abrupt change during the cascade between transmission line and chip, a matching band-line method for X~Ka band was proposed based on the ground coplanar waveguide and ...
Zhiyong MENG   +5 more
doaj   +1 more source

Assessment of Treatment Influence in Mobile Network Coverage on Board High-Speed Trains

open access: yesIEEE Access, 2020
In this paper, we investigate the systematic change in the signal quality of mobile telecommunication systems inside a high-speed train. Using commercial mobile phones, we perform measurements inside a carriage of a high-speed train with an installed ...
Orlando S. Trindade   +4 more
doaj   +1 more source

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