Results 131 to 140 of about 23,147 (261)

Optical Coherence Tomography as an Emerging Technique for Identifying Pediatric Middle Ear Effusion

open access: yesThe Laryngoscope, EarlyView.
This prospective study evaluated optical coherence tomography (OCT) as a diagnostic tool for identifying middle ear effusion (MEE) in 164 pediatric patients. OCT was determined to have a sensitivity of 74% and a specificity of 93%, comparable to otoscopy and tympanometry, with moderate agreement (κ = 0.41) between clinical and non‐clinical raters.
Roger Neuberger   +7 more
wiley   +1 more source

Dual‐Polarization‐Sensitive Organic Photodetectors for Real‐Time Polarimetric Imaging

open access: yesLaser &Photonics Reviews, EarlyView.
Bias‐switchable organic photodetectors with orthogonally stacked uniaxially oriented polymer layers enable dual‐polarization detection and real‐time polarimetric imaging. This scalable, template‐free strategy achieves a high dichroic ratio (>11), rapid response (>500 Hz), and detectivity up to 1013 Jones.
Jiayin Han   +7 more
wiley   +1 more source

Next‐generation monitoring in obstetrics: Assessing the accuracy of non‐piezo portable ultrasound technology

open access: yesActa Obstetricia et Gynecologica Scandinavica
Introduction The emergence of handheld ultrasound devices capable of connecting to cell phones or tablets heralds a significant advancement in medical technology, particularly within the field of obstetrics.
Ruben Plöger   +6 more
doaj   +1 more source

Portable and Cost-Effective Handheld Ultrasound System Utilizing FPGA-Based Synthetic Aperture Imaging

open access: yesIEEE Open Journal of Nanotechnology
The handheld ultrasound has been widely applied in various clinical applications due to its high portability and cost-effectiveness advantages. The smaller hardware architecture can expand its range of application scenarios.
Wenping Wang, Ziliang Feng
doaj   +1 more source

Direct Ambient Mass Spectrometry for Food, Beverage, and Agricultural Sample Analysis and Research

open access: yesMass Spectrometry Reviews, EarlyView.
ABSTRACT Ambient and direct mass spectrometry (MS) methods are becoming increasingly used for the rapid analysis of food, beverage and agricultural samples. Novel ionization approaches combined with targeted, or untargeted workflows provide analytical outcomes within a greatly reduced time period compared to traditional separation science coupled with ...
Leigh M. Schmidtke   +3 more
wiley   +1 more source

Current Medical Research: Summer/Fall 2017 [PDF]

open access: yes, 2018
This issue of Current Medical Research (CMR) includes studies that provide evidence that use of natural family planning (NFP) can be helpful for subfertile couples wishing to achieve a pregnancy, the effectiveness of a method of NFP during breastfeeding,
Barron, Mary Lee, Fehring, Richard
core   +1 more source

CONCERT: A Modular Reconfigurable Robot for Construction

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This paper presents CONCERT, a fully reconfigurable modular collaborative robot (cobot) for multiple on‐site operations in a construction site. CONCERT has been designed to support human activities in construction sites by leveraging two main characteristics: high‐power density motors and modularity. In this way, the robot is able to perform a
Luca Rossini   +18 more
wiley   +1 more source

Fast 3-D photoacoustic imaging in vivo with a high frequency ultrasound array toward clinical applications [PDF]

open access: yes, 2009
We present an in vivo reflection-mode photoacoustic microscopy system that performs B-scan imaging at 50 Hz with realtime beamforming and 3-D imaging of 166 B-scan frames at 1 Hz with post-beamforming.
Bitton, Rachel   +4 more
core  

Multifunctional Superwetting Sea‐Urchin‐Mimetic Nanosheet‐Based Interface for Remote Oil‐Water Separation

open access: yesSmall, EarlyView.
A fluorine‐free, FBC–rGO coating‐based robust superhydrophobic/superoleophilic sorbent (WCA >154°), enabling rapid, selective oil uptake and efficient oil/water separation. Integrated into a dolphin‐inspired Wi‐Fi mini‐bot with onboard pumping and storage, the platform enables remote, contactless, on‐site oil recovery from hazardous spill zones ...
Surya Kanta Ghadei   +4 more
wiley   +1 more source

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