166,978 results match your criteria digital


Near-zero phase-lag hyperscanning in a novel wireless EEG system.

J Neural Eng 2021 Oct 27. Epub 2021 Oct 27.

University of California San Diego, 9500 Gilman Dr, La Jolla, California, 92093-0021, UNITED STATES.

Objective: Hyperscanning is an emerging technology that concurrently scans the neural dynamics of multiple individuals to study interpersonal interactions. In particular, hyperscanning with electroencephalography (EEG) is increasingly popular owing to its mobility and its ability to allow studying social interactions in naturalistic settings at the millisecond scale.

Approach: To align multiple EEG time series with sophisticated event markers in a single time domain, a precise and unified timestamp is required for stream synchronization. Read More

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October 2021

COVID-19 "Green Pass": a Lesson on the Proportionality Principle from Galicia.

Eur J Health Law 2021 Oct 18:1-8. Epub 2021 Oct 18.

Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia Modena Italy.

Coronavirus Disease 2019 (COVID-19) is the most dramatic pandemic of the new millennium, and extraordinary measures concerning with health, law and policy are required around the world. One of these is without doubts the "green pass", officially known in the European Union (EU) as EU Digital COVID Certificate (EUDCC). Initially conceived as a tool for overcoming the lockdown restrictions, it has unexpectedly turned into a means of discrimination between pass holders and non-holders, thus increasing social tension at the expense of solidarity and brotherhood. Read More

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October 2021

Depth-dependent patterns in shear modulus of temporomandibular joint cartilage correspond to tissue structure and anatomic location.

J Biomech 2021 Oct 15;129:110815. Epub 2021 Oct 15.

Meinig School of Biomedical Engineering, Cornell University, Ithaca, NY, USA; Sibley School of Mechanical and Aerospace Engineering, Cornell University, Ithaca, NY, USA. Electronic address:

To fully understand TMJ cartilage degeneration and appropriate repair mechanisms, it is critical to understand the native structure-mechanics relationships of TMJ cartilage and any local variation that may occur in the tissue. Here, we used confocal elastography and digital image correlation to measure the depth-dependent shear properties as well as the structural properties of TMJ cartilage at different anatomic locations on the condyle to identify depth-dependent changes in shear mechanics and structure. We found that samples at every anatomic location showed qualitatively similar shear modulus profiles as a function of depth. Read More

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October 2021

The effect of magnetic field strength on the positron range and projected annihilation artifact in integrated PET/MR systems: a GATE Monte Carlo study.

Med Phys 2021 Oct 27. Epub 2021 Oct 27.

Research Center for Nuclear Medicine, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.

Purpose: With improvements in PET/MRI over the last decade, there is a need to investigate the projected annihilation (shine-through) artifact and resolution impact for different PET radiopharmaceuticals, magnetic field (MF) strengths, and tissues.

Methods: The GATE Monte Carlo (MC) simulation was used to simulate the annihilation distribution of positrons in different tissues and MFs. The positron distribution was studied in MF intensities up to 15 Tesla for C, N, O, F, Ga, and Rb. Read More

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October 2021

Multi-Contrast Four-dimensional Magnetic Resonance Imaging (MC-4D-MRI): development and initial evaluation in liver tumor patients.

Med Phys 2021 Oct 27. Epub 2021 Oct 27.

Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, 27710.

Purpose: To develop a novel multi-contrast 4D-MRI (MC-4D-MRI) technique that expands single image contrast 4D-MRI to a spectrum of native and synthetic image contrasts and to evaluate its feasibility in liver tumor patients.

Methods And Materials: The MC-4D-MRI technique integrates multi-parametric MRI fusion, 4D-MRI and deformable image registration (DIR) techniques. The fusion technique consists of native MRI as input, image pre-processing, fusion algorithm, adaptation, and fused multi-contrast MRI as output. Read More

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October 2021

Agreement among instruments of quantitative evaluation of the hard palate in children.

Codas 2021 25;34(1):e20200318. Epub 2021 Oct 25.

Departamento de Fonoaudiologia, Curso de Fonoaudiologia, Universidade Federal de Santa Maria - UFSM - Santa Maria (RS), Brasil.

Purpose: To evaluate the agreement among instruments of the quantitative evaluation of hard palate.

Methods: This cross-sectional study was performed with a sample of 30 children aged 6 to 11 from Santa Maria, Southern Brazil. The instruments for palate measurements evaluated were: digital caliper, used directly in the oral cavity and in plaster casts, Korkhaus tridimensional bow, used directly in the oral cavity and in plaster casts, and Dolphin Imaging Software used for measurements in cone-beam computed tomography (CBCT). Read More

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October 2021

Understanding racial disparities in severe maternal morbidity using Bayesian network analysis.

PLoS One 2021 27;16(10):e0259258. Epub 2021 Oct 27.

Department of Health Policy and Management, University of Arkansas for Medical Sciences, Little Rock, Arkansas, United States of America.

Previous studies have evaluated the marginal effect of various factors on the risk of severe maternal morbidity (SMM) using regression approaches. We add to this literature by utilizing a Bayesian network (BN) approach to understand the joint effects of clinical, demographic, and area-level factors. We conducted a retrospective observational study using linked birth certificate and insurance claims data from the Arkansas All-Payer Claims Database (APCD), for the years 2013 through 2017. Read More

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October 2021

Automated color detection in orchids using color labels and deep learning.

PLoS One 2021 27;16(10):e0259036. Epub 2021 Oct 27.

Faculty of EEMCS, University of Twente, Enschede, The Netherlands.

The color of particular parts of a flower is often employed as one of the features to differentiate between flower types. Thus, color is also used in flower-image classification. Color labels, such as 'green', 'red', and 'yellow', are used by taxonomists and lay people alike to describe the color of plants. Read More

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October 2021

Parents' perspectives on a smartwatch intervention for children with ADHD: Rapid deployment and feasibility evaluation of a pilot intervention to support distance learning during COVID-19.

PLoS One 2021 27;16(10):e0258959. Epub 2021 Oct 27.

Department of Psychiatry and Neuroscience, School of Medicine, University of California, Riverside, CA, United States America.

Distance learning in response to the COVID-19 pandemic presented tremendous challenges for many families. Parents were expected to support children's learning, often while also working from home. Students with Attention Deficit Hyperactivity Disorder (ADHD) are at particularly high risk for setbacks due to difficulties with organization and increased risk of not participating in scheduled online learning. Read More

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October 2021

A drone-based survey for large, basking freshwater turtle species.

PLoS One 2021 27;16(10):e0257720. Epub 2021 Oct 27.

School of Earth, Environmental, and Marine Sciences, The University of Texas Rio Grande Valley, Brownsville, Texas, United States of America.

Conservation concerns are increasing for numerous freshwater turtle species, including Pseudemys gorzugi, which has led to a call for more research. However, traditional sampling methodologies are often time consuming, labor intensive, and invasive, restricting the amount of data that can be collected. Biases of traditional sampling methods can further impair the quality of the data collected, and these shortfalls may discourage their use. Read More

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October 2021

Two- and Three-Segment Surgically Assisted Rapid Maxillary Expansion: A Clinical Trial.

Plast Reconstr Surg 2021 Nov;148(5):1086-1097

From the Postgraduate Program in Translational Medicine, Craniomaxillofacial Unit, Division of Plastic Surgery, Federal University of São Paulo.

Background: The literature shows no consensus on whether two- or three-segment surgically assisted rapid maxillary expansion is the best operative technique.

Methods: The present clinical trial was designed to compare the outcome of two- and three-segment osteotomy surgically assisted rapid maxillary expansion. Thirty-two adult patients with transverse maxillary deficiency greater than or equal to 5 mm were randomly assigned to two- and three-segment groups (n = 16). Read More

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November 2021

A Novel Alaska Pollock Gelatin Sealant Shows Higher Bonding Strength and Nerve Regeneration Comparable to That of Fibrin Sealant in a Cadaveric Model and a Rat Model.

Plast Reconstr Surg 2021 Nov;148(5):742e-752e

From the Department of Orthopedic Surgery, Electron Microscope Laboratory, and Department of Neuropsychiatry, Keio University School of Medicine; Graduate School of Pure and Applied Sciences, University of Tsukuba; and Polymers and Biomaterials Field, Research Center for Functional Materials, National Institute for Materials Science.

Background: A novel biocompatible sealant composed of Alaska pollock-derived gelatin (ApGltn) has recently shown good burst strength and biocompatibility in a porcine aorta. The purpose of this study was to investigate the bonding strength and biocompatibility of the ApGltn sealant in transected digital nerves of fresh frozen cadavers and in the sciatic nerves of a rat model.

Methods: Eighty human digital nerves of fresh frozen cadavers were transected for biomechanical traction testing. Read More

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November 2021

Digitally disconnected: A qualitative study of patient perspectives on the digital divide and potential solutions.

JMIR Hum Factors 2021 Oct 24. Epub 2021 Oct 24.

Department of Medicine, University of Chicago, Chicago, US.

Background: As telemedicine utilization increased during the COVID-19 pandemic, divergent usage patterns for video and audio-only telephone visits emerged. Older, low-income, minority, and non-English speaking Medicaid patients are at highest risk of experiencing technology access and digital literacy barriers. This raises concern for disparities in healthcare access and widening of the "digital divide", the separation of those with technological access and knowledge and those who do not. Read More

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October 2021

Comprehensive Analysis System for Automated Respiratory Cycle Segmentation and Crackle Peak Detection.

IEEE J Biomed Health Inform 2021 Oct 27;PP. Epub 2021 Oct 27.

Digital auscultation is a well-known method for assessing lung sounds, but remains a subjective process in typical practice, relying on the human interpretation. Several methods have been presented for detecting or analyzing crackles but are limited in their real-world application because few have been integrated into comprehensive systems or validated on non-ideal data. This work details a complete signal analysis methodology for analyzing crackles in challenging recordings. Read More

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October 2021

Proposal of fam. nov. to accommodate the genera and and reclassification of as a later heterotypic synonym of based on whole genome sequence analysis.

Int J Syst Evol Microbiol 2021 Oct;71(10)

Key Laboratory of Marine Genetic Resources, Third Institute of Oceanography, Ministry of Natural Resources, Xiamen, PR China.

The genus , affiliated to the class , is an important marine member that produces prodiginines. Currently, its taxonomic assignment to family level is not well presented. Phylogeny of 16S rRNA gene sequences indicated that forms a monophyletic clade with , which is neighboured by of the family and another monophyletic clade of the family . Read More

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October 2021

sp. nov., isolated from the top soil layer on basaltic material in Turkey.

Int J Syst Evol Microbiol 2021 Oct;71(10)

Department of Biology, Faculty of Science and Arts, Ondokuz Mayis University, 55139 Samsun, Turkey.

An actinobacterium, designated 14C53, was isolated from a soil sample on basaltic material from Samsun, Turkey. The growth ranges for NaCl concentration and pH of strain 14C53 were quite limited and the growth temperature range of the strain was 20-37 °C, with an optimum at 28 °C. Phylogenetic analysis of 16S rRNA gene sequences revealed that strain 14C53 was most closely related to A8036 (98. Read More

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October 2021

Effect of Photobiomodulation on Periodontal Ligament Cells Under Inflamed and Nutrient-Deficient Conditions Simulating Damaged Cells of Avulsed Teeth: An Study.

Photobiomodul Photomed Laser Surg 2021 Oct 27. Epub 2021 Oct 27.

National Clinical Research Center for Oral Diseases, Beijing, PR China.

The prognosis of replanted teeth is depended on the vitality of periodontal ligament cells residual on the root surface. Photobiomodulation has photobiological effects that can promote cell vitality. The study aimed to explore the effect of photobiomodulation on the periodontal ligament cells under inflamed or starved conditions mimicking clinically damaged periodontal ligament cells of avulsed teeth and provide the adjuvant procedure for tooth replantation. Read More

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October 2021

A Novel Three-Dimensional Robot Arm Steered Camera for Ear Surgery.

J Craniofac Surg 2021 Oct;32(7):e672-e676

Department of Otorhinolaryngology and Head & Neck Surgery, University Hospital UZ Brussel, Vrije Universiteit Brussel, Brussels Health Campus, Brussels, Belgium.

Abstract: Ear surgery requires magnified imaging of anatomical structures from its beginning to achieve safe and successful surgical outcomes. The historical evolution of magnification in otology has developed from monocular to binocular, and to three-dimensional and even to digital in modern times. Current technological advancements pursue high-quality visualization for the best surgical outcomes but also ergonomic for surgeons. Read More

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October 2021

Autogenic Training for Reducing Chronic Pain: a Systematic Review and Meta-analysis of Randomized Controlled Trials.

Int J Behav Med 2021 Oct 27. Epub 2021 Oct 27.

Institute of Psychosocial Medicine, Psychotherapy and Psychooncology, Jena University Hospital, Stoystr. 3, 07743, Jena, Germany.

Background: Autogenic training (AT) is frequently used as therapeutic approach in multimodal pain therapy. The aim of this systematic review and meta-analysis is to investigate the efficacy of AT in individuals suffering from chronic pain in comparison to passive and active control groups.

Methods: A comprehensive literature search in Medline, Web of Science, PsycInfo, and PubPsych and manual searches (last search April 7, 2021) were conducted to locate randomized controlled trials (RCTs). Read More

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October 2021

The Effect of TLR Agonists and Myokines on Secretory Activity of Adipogenically Differentiated MSC Cultures.

Bull Exp Biol Med 2021 Oct 27. Epub 2021 Oct 27.

N. I. Pirogov Russian National Research Medical University, Ministry of the Health of the Russian Federation, Moscow, Russia.

We studied the effect of bacterial pathogen-associated molecular patterns and myokines on the secretion of adipokines by mesenchymal stem cells (MSC) and products of their adipogenic differentiation. The secretion of adiponectin, adipsin, leptin, and insulin by adipogenically differentiated cell cultures was quantitatively determined using multiplex ELISA. MSC obtained from the stromal vascular fraction of human subcutaneous adipose tissue were shown to secrete a known adipokine adipsin. Read More

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October 2021

Pandemic tele-smart: a contactless tele-health system for efficient monitoring of remotely located COVID-19 quarantine wards in India using near-field communication and natural language processing system.

Med Biol Eng Comput 2021 Oct 27. Epub 2021 Oct 27.

The Queen Anne School of Management, Sydney, NSW, 2000, Australia.

Efficient remote monitoring of the patient infected with coronavirus without spread to healthcare workers is the need of the hour. An effectual and faster communication system must be established wherein the healthcare workers at the remote quarantine ward can communicate with healthcare professionals present in specialty hospitals. Incidentally, there is a need to establish a contactless smart cloud-based connection between a specialty hospital and quarantine wards during pandemic situation. Read More

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October 2021

Automated Substance Use/Sexual Risk Reporting and HIV Test Acceptance Among Emergency Department Patients Aged 13-24 Years.

AIDS Behav 2021 Oct 27. Epub 2021 Oct 27.

School of Global Public Health, New York University, 708 Broadway, New York, NY, 10003, USA.

Despite federal guidelines, many adolescents and emerging adults are not offered HIV testing by their healthcare providers. As such, many-including those who may be at high-risk for contracting HIV given their sexual and/or substance use risk-are not routinely tested. The current study examines sexual risk and substance use among emergency department patients aged 13-24 years (n = 147), who completed an automated screening as part of a tablet-based intervention designed to increase HIV testing. Read More

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October 2021

Intrinsically radiopaque and antimicrobial cellulose based surgical sutures from mechanically powerful plant leaf fibers.

Biomater Sci 2021 Oct 27. Epub 2021 Oct 27.

Department of Polymer Science and Rubber Technology, Cochin University of Science and Technology, Ernakulam, India.

The judicious configuration of a flexible radiopaque suture would be exemplary to facilitate effortless tracking and precise diagnosis of the sutured surgical site by various X-ray assisted imaging modalities and simultaneously serve as a complementary tool for monitoring the fate of the suture material during the post-operative course. A unique radiopaque cellulose based surgical suture (RF) with good mechanical properties was developed by strategically controlled mercerization and bleaching of mechanically strong natural cellulosic fibers extracted from plant leaves followed by the facile dip-coating of SrO integrated polylactic acid (PLA). RF exhibited admirable straight-pull tensile strength (184 MPa) and commendable contrast enhancement (277. Read More

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October 2021

Automatic Identification of Papillary Projections in Indeterminate Biliary Strictures Using Digital Single-Operator Cholangioscopy.

Clin Transl Gastroenterol 2021 Oct 27;12(11):e00418. Epub 2021 Oct 27.

Department of Gastroenterology, São João University Hospital, Alameda Professor Hernâni Monteiro, Porto, Portugal.

Introduction: Characterization of biliary strictures is challenging. Papillary projections (PP) are often reported in biliary strictures with high malignancy potential during digital single-operator cholangioscopy. In recent years, the development of artificial intelligence (AI) algorithms for application to endoscopic practice has been intensely studied. Read More

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October 2021

Blood Glucose Monitoring and Sharing Amongst People With Diabetes and Their Facilitators: Cross-sectional Study of Methods and Practices.

JMIR Diabetes 2021 Oct 27;6(4):e29178. Epub 2021 Oct 27.

Department of Family and Community Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia.

Background: The last two decades have witnessed a burgeoning rise in the prevalence of diabetes globally. It has already reached epidemic proportions in Saudi Arabia, with reported high risk among women. As a result, diabetes monitoring and self-management programs are being highly prioritized for diabetes control and management. Read More

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October 2021

An Interactive Physical-Cognitive Game-Based Training System Using Kinect for Older Adults: Development and Usability Study.

JMIR Serious Games 2021 Oct 27;9(4):e27848. Epub 2021 Oct 27.

Department of Physical Therapy, Faculty of Associated Medical Sciences, Chiang Mai University, Chiang Mai, Thailand.

Background: Declines in physical and cognitive functions are recognized as important risk factors for falls in older adults. Promising evidence suggests that interactive game-based systems that allow simultaneous physical and cognitive exercise are a potential approach to enhance exercise adherence and reduce fall risk in older adults. However, a limited number of studies have reported the development of a combined physical-cognitive game-based training system for fall risk reduction in older adults. Read More

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October 2021

Pilot Study of a Digital Screen-Based Calming Device for Managing Resistance During Morning and Evening Care of Persons With Dementia.

J Gerontol Nurs 2021 Nov 1;47(11):15-21. Epub 2021 Nov 1.

Resistance to care is among the most common behaviors exhibited by persons with dementia (PwD). Resistance to care is a barrier to safety and comfort of PwD and caregivers. Nonpharmacological interventions are recommended as first-line management. Read More

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November 2021