Results 111 to 120 of about 287,175 (304)

An Ultra‐Low‐Power Biopotential Acquisition Analog Front‐End Chip for Wearable Devices

open access: yesInternational Journal of Circuit Theory and Applications, EarlyView.
A 0.8‐V, 1.2‐μW biopotential AFE combines a chopper‐stabilized CCIA with dual‐time‐scale EDO management. The slow DSL preserves > 1 GΩ input impedance, whereas an event‐triggered fast‐recovery path shortens return to the linear range after abrupt electrode‐offset disturbances. ABSTRACT A 0.8‐V, 1.2‐μW biopotential analog front‐end (AFE) IC is presented
Zhang Xin   +4 more
wiley   +1 more source

Usefulness of a newly developed ultrasonic system to estimate skeletal muscle mass and muscle strength in community-dwelling older adults

open access: yesScientific Reports
Measuring skeletal muscle mass index using bioelectrical impedance analysis or dual-energy X-ray absorptiometry is challenging for home care patients and those with implanted devices.
Masaaki Onishi   +14 more
doaj   +1 more source

Harnessing Natural Wood Architecture: A Self‐Supporting, Hierarchically Porous NiFe@Carbon Capacitive Anode Enhances Electricity Generation and Storage in Microbial Fuel Cells

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This study reports a mild “Zn(NO3)2 interlayer‐expansion” strategy combined with electrodeposition to produce a self‐supporting capacitive anode (NiFe@PC) that preserves the wood's native low‐tortuosity channels. The retained native architecture expands niches for microbial colonization.
Xue Liu   +10 more
wiley   +1 more source

KESESUAIAN METODE PENGUKURAN PERSENTASE LEMAK TUBUH SKINFOLD CALIPER DENGAN METODE BIOELECTRICAL IMPEDANCE ANALYSIS [PDF]

open access: yes, 2018
Latar Belakang: Pengukuran persentase lemak tubuh yang akurat merupakan hal yang diperlukan untuk memonitor lemak tubuh, obesitas dan untuk rencana pengaturan diet dalam program pelayanan kesehatan.
Fitranti, Deny Yudi   +2 more
core   +1 more source

Artificial structures for human‐machine interfaces with closed‐loop interaction

open access: yesFlexMat, EarlyView.
Artificial structures bridge sensing and feedback in closed‐loop human‐machine interfaces by providing geometry‐enabled mechanical and functional programmability. This review maps the role of artificial structures in diverse sensing modalities and feedback strategies, and illustrates their integration into closed‐loop interaction systems, highlighting ...
Taiqi Hu   +4 more
wiley   +1 more source

Confounding Factors and Their Mitigation in Measurements of Bioelectrical Impedance at the Skin Interface

open access: yesBioengineering
Background: Bioelectrical impedance measurement is a technique used in engineering (development of different wearable biosensors with diverse applications), in the medical field (health monitoring and diagnosis), and in biomedical research (fundamental ...
Adrian Iftime   +5 more
doaj   +1 more source

Magneto‐responsive fibers and fabrics for soft systems

open access: yesFlexMat, EarlyView.
Abstract The combination of functional materials in fiber form has led to a surge in the integration of functional fibers and fabrics into soft systems that span sensing, communication, and actuation domains. A key subset is magnetic fibers and fabrics.
Hanlin Zhu   +8 more
wiley   +1 more source

Bioelectrical impedance spectroscopy for the assessment of body fluid volumes of term neonates

open access: yesBrazilian Journal of Medical and Biological Research, 2004
The assessment of fluid volume in neonates by a noninvasive, inexpensive, and fast method can contribute significantly to increase the quality of neonatal care.
Ferreira D.M., Souza M.N.
doaj  

Water‐driven dispersible fiber electrode arrays for position‐dependent intracardiac electrophysiological recording

open access: yesFlexMat, EarlyView.
Abstract Intracardiac electrophysiological recording plays an essential role in identifying abnormal cardiac electrical activity and guiding arrhythmia diagnosis and treatment planning. A key challenge for minimally invasive intracardiac electrodes is to combine reliable transvascular delivery with stable and compliant endocardial contact.
Jinyang Mao   +7 more
wiley   +1 more source

Exploring the Effects of Frailty and Sarcopenia on Dysphagia in Head and Neck Cancer: A Scoping Review

open access: yesHead &Neck, EarlyView.
ABSTRACT Background Frailty and sarcopenia may influence head and neck cancer (HNC) treatment outcomes, including dysphagia. Current understanding of this relationship, however, remains limited. This scoping review aimed to synthesize existing evidence on the relationship between frailty and/or sarcopenia and dysphagia in adults with HNC.
Rishni Perera   +4 more
wiley   +1 more source

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