×
About 364,180 results

Spectral image contrast-based flow digital nanoplasmon-metry for ultrasensitive antibod...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8724237
Journal of Nanobiotechnology; Wang SH, Kuo CW et. al.

Jan 6th, 2022 - Gold nanoparticles (AuNPs) have been widely used in local surface plasmon resonance (LSPR) immunoassays for biomolecule sensing, which is primarily based on two conventional methods: absorption spectra analysis and colorimetry. The low figure of merit (FoM) of the LSPR and high-concentration AuNP requirement restrict their limit of detection (LOD), which is approximately ng to μg mL-1 in antibo...

Use of smartphones as a camera system for flexible cystoscopy during COVID-19 outbreak.
https://doi.org/10.1308/rcsann.2021.0108
Annals of the Royal College of Surgeons of England; Shin JS, Jones J et. al.

Jan 2nd, 2022 - Use of smartphones as a camera system for flexible cystoscopy during COVID-19 outbreak.|2022|Shin JS,Jones J,Day E,|prevention & control,instrumentation,instrumentation,

Association between leisure-time physical activity and the built environment in China: ...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8719743
PloS One; Chen L, Zhang Z et. al.

Jan 1st, 2022 - To reexamine the relationship between leisure-time physical activity (LTPA) and the built environment (BE), this paper takes advantage of the massive amount of data collected by an accelerometer and GPS-based fitness mobile app. Massive LTPA data from more than 3 million users were recorded by Codoon in 500m by 500m grid cells and aggregated to 742 natural cities in mainland China. Six BE indic...

Aerosol release, distribution, and prevention during aerosol therapy: a simulated model...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8725970
Drug Delivery; Mac Giolla Eain M, Cahill R et. al.

Dec 29th, 2021 - Aerosol therapy is used to deliver medical therapeutics directly to the airways to treat respiratory conditions. A potential consequence of this form of treatment is the release of fugitive aerosols, both patient derived and medical, into the environment and the subsequent exposure of caregivers and bystanders to potential viral infections. This study examined the release of these fugitive aero...

Quantification of stroke volume in a simulated healthy volunteer model of traumatic hae...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8699736
PloS One; Hutchings SD, Watchorn J et. al.

Dec 24th, 2021 - Haemorrhage is a leading cause of death following traumatic injury and the early detection of hypovolaemia is critical to effective management. However, accurate assessment of circulating blood volume is challenging when using traditional vital signs such as blood pressure. We conducted a study to compare the stroke volume (SV) recorded using two devices, trans-thoracic electrical bioimpedance ...

Design and analysis of a performance monitoring system for a seed metering device based...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8694462
PloS One; Liu Z, Xia J et. al.

Dec 23rd, 2021 - To realize real-time and accurate performance monitoring of large- and medium-sized seed metering devices, a performance monitoring system was designed for seed metering devices based on LED visible photoelectric sensing technology and a pulse width recognition algorithm. Through an analysis of the of sensing component pointing characteristics and seed motion characteristics, the layout of the ...

Efficacy of a sonic toothbrush on plaque removal-A video-controlled explorative clinica...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8694435
PloS One; Schlueter N, Fiedler S et. al.

Dec 23rd, 2021 - Clinical studies on the efficacy of sonic toothbrushes show inconsistent results, most studies have been conducted without sufficient supervision of appropriate toothbrush usage. Aims of the explorative clinical trial were therefore to investigate whether the usage of an activated sonic toothbrush reduces plaque more effectively than an inactivated one used as a manual toothbrush, and to which ...

Detailed analysis and comparison of different activity metrics.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8691611
PloS One; Maczák B, Vadai G et. al.

Dec 22nd, 2021 - Actigraphic measurements are an important part of research in different disciplines, yet the procedure of determining activity values is unexpectedly not standardized in the literature. Although the measured raw acceleration signal can be diversely processed, and then the activity values can be calculated by different activity calculation methods, the documentations of them are generally incomp...

An open-source, lockable mouse wheel for the accessible implementation of time- and dis...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8691618
PloS One; Bivona JJ, Poynter ME

Dec 22nd, 2021 - Current methods of small animal exercise involve either voluntary (wheel running) or forced (treadmill running) protocols. Although commonly used, each have several drawbacks which cause hesitancy to adopt these methods. While mice will instinctively run on a wheel, the distance and time spent running can vary widely. Forced exercise, while controllable, puts animals in stressful environments i...

Remote monitoring in telehealth care delivery across the U.S. cystic fibrosis care netw...
https://doi.org/10.1016/j.jcf.2021.08.035
Journal of Cystic Fibrosis : Official Journal of the Euro... Ong T, Van Citters AD et. al.

Dec 22nd, 2021 - Cystic fibrosis (CF) programs and people with CF (PwCF) employed various monitoring methods for virtual care during the COVID-19 pandemic. This paper characterizes experiences with remote monitoring across the U.S. CF community. The CF Foundation (CFF) sponsored distribution of home spirometers (April 2020 to May 2021), surveys to PwCF and CF programs (July to September 2020), and a second prog...

FaDA: A web application for regular laboratory data analyses.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8687579
PloS One; Danger R, Moiteaux Q et. al.

Dec 21st, 2021 - Web-based data analysis and visualization tools are mostly designed for specific purposes, such as the analysis of data from whole transcriptome RNA sequencing or single-cell RNA sequencing. However, generic tools designed for the analysis of common laboratory data for noncomputational scientists are also needed. The importance of such web-based tools is emphasized by the continuing increases i...

Ultrasonography Is Accurate for Diagnosing Upper Extremity Fractures in Children.
https://www.ncbi.nlm.nih.gov/pubmed/34913666
American Family Physician; Barry HC

Dec 17th, 2021 - Ultrasonography Is Accurate for Diagnosing Upper Extremity Fractures in Children.|2021|Barry HC,|abnormalities,diagnostic imaging,diagnosis,diagnostic imaging,instrumentation,methods,methods,trends,

Novel feature extraction method for signal analysis based on independent component anal...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8675669
PloS One; Topolski M, Kozal J

Dec 17th, 2021 - Feature extraction is an important part of data processing that provides a basis for more complicated tasks such as classification or clustering. Recently many approaches for signal feature extraction were created. However, plenty of proposed methods are based on convolutional neural networks. This class of models requires a high amount of computational power to train and deploy and large datas...

Acoustic emission corrosion feature extraction and severity prediction using hybrid wav...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8675711
PloS One; May Z, Alam MK et. al.

Dec 17th, 2021 - Corrosion in carbon-steel pipelines leads to failure, which is a major cause of breakdown maintenance in the oil and gas industries. The acoustic emission (AE) signal is a reliable method for corrosion detection and classification in the modern Structural Health Monitoring (SHM) system. The efficiency of this system in detection and classification mainly depends on the suitable AE features. The...

Axially rigid steerable needle with compliant active tip control.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8675730
PloS One; de Vries M, Sikorski J et. al.

Dec 17th, 2021 - Steerable instruments allow for precise access to deeply-seated targets while sparing sensitive tissues and avoiding anatomical structures. In this study we present a novel omnidirectional steerable instrument for prostate high-dose-rate (HDR) brachytherapy (BT). The instrument utilizes a needle with internal compliant mechanism, which enables distal tip steering through proximal instrument ben...

Integrated linkage-driven dexterous anthropomorphic robotic hand.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8671524
Nature Communications; Kim U, Jung D et. al.

Dec 16th, 2021 - Robotic hands perform several amazing functions similar to the human hands, thereby offering high flexibility in terms of the tasks performed. However, developing integrated hands without additional actuation parts while maintaining important functions such as human-level dexterity and grasping force is challenging. The actuation parts make it difficult to integrate these hands into existing ro...

A low-cost and shielding-free ultra-low-field brain MRI scanner.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8671508
Nature Communications; Liu Y, Leong ATL et. al.

Dec 16th, 2021 - Magnetic resonance imaging is a key diagnostic tool in modern healthcare, yet it can be cost-prohibitive given the high installation, maintenance and operation costs of the machinery. There are approximately seven scanners per million inhabitants and over 90% are concentrated in high-income countries. We describe an ultra-low-field brain MRI scanner that operates using a standard AC power outle...

A cryo-electron microscopy support film formed by 2D crystals of hydrophobin HFBI.
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8671466
Nature Communications; Fan H, Wang B et. al.

Dec 16th, 2021 - Cryo-electron microscopy (cryo-EM) has become a powerful tool to resolve high-resolution structures of biomacromolecules in solution. However, air-water interface induced preferred orientations, dissociation or denaturation of biomacromolecules during cryo-vitrification remains a limiting factor for many specimens. To solve this bottleneck, we developed a cryo-EM support film using 2D crystals ...

Evaluation of Device-Based Cutaneous Channels Using Optical Coherence Tomography: Impac...
https://doi.org/10.1097/DSS.0000000000003275
Dermatologic Surgery : Official Publication for American ... Wang JV, Mehrabi JN et. al.

Dec 15th, 2021 - Topical medications play a large role in the management of cutaneous diseases, but penetration is limited. Device-assisted drug delivery using mechanical destruction, lasers, and other energy-based modalities can increase penetration and absorption through creation of transcutaneous channels. To examine real-time, in vivo cutaneous changes in response to various devices used to improve topical ...

Acoustic Shockwave Therapy as an Adjunct to Picosecond Laser for Multicolored Tattoo Re...
https://doi.org/10.1097/DSS.0000000000003303
Dermatologic Surgery : Official Publication for American ... Sodha P, Wang JV et. al.

Dec 15th, 2021 - Acoustic Shockwave Therapy as an Adjunct to Picosecond Laser for Multicolored Tattoo Removal.|2021|Sodha P,Wang JV,Friedman PM,|methods,therapeutic use,methods,instrumentation,adverse effects,