Results 31 to 40 of about 32,398 (300)

A Hybrid System for Driver Assistance Using Computer Vision Methods

open access: yesStandards
Driver fatigue and drowsiness are the causes of many road accidents. In this work, a low-cost hybrid system is proposed for determining driver fatigue level based on four metrics: last sleep quality, blinking rate, heart rate variation, and yawning.
Liviu Octavian Mafteiu-Scai   +1 more
doaj   +1 more source

Cracking the Code: Which Ocular Symptoms Predict Dry Eye Signs? Insights From a Large International Sicca Registry

open access: yesArthritis Care &Research, EarlyView.
Objective The study aimed to identify symptom‐based predictors of dry eye disease (DED) signs in the Sjögren's International Collaborative Clinical Alliance (SICCA) cohort. Methods We performed a retrospective analysis examining 16 ocular symptoms (most graded 0–4) and artificial tear (AT) use (graded 0–3) as predictors of DED signs (abnormal ocular ...
Pragnya R. Donthineni   +7 more
wiley   +1 more source

Gellan Gum Fluid Gel System for Controlled‐Delivery of Cytokine‐Licensed MSC‐EVs to Enhance Corneal Repair in Limbal Stem Cell Deficiency

open access: yesAdvanced Healthcare Materials, EarlyView.
Gellan gum fluid gel (FG) enables controlled ocular delivery of mesenchymal stromal cell (MSC)‐derived extracellular vesicles (EV). Its shear‐thinning, solid‐liquid‐solid rheology ensures prolonged ocular retention. Sustained MSC‐EV release (∼18% in 6 hrs) supports effective EV ocular delivery.
Seyedmohammad Moosavizadeh   +7 more
wiley   +1 more source

The effect of incomplete blinking rate on corneal epithelial remodeling after trans-PRK surgery: a six-month study

open access: yesFrontiers in Medicine
PurposeTo evaluate the impact of incomplete blink rate on corneal epithelial thickness after transepithelial photorefractive keratectomy (Trans-PRK) surgery.MethodsTrans-PRK patients were divided into two groups based on preoperative incomplete blinking ...
Fan Yang   +3 more
doaj   +1 more source

A Mixed-Methods Approach Using Self-Report, Observational Time Series Data, and Content Analysis for Process Analysis of a Media Reception Phenomenon

open access: yesFrontiers in Psychology, 2019
Due to the complexityof research objects, theoretical concepts, and stimuli in media research, researchers in psychology and communications presumably need sophisticated measures beyond self-report scales to answer research questions on media use ...
Michael Brill, Frank Schwab
doaj   +1 more source

Nocturnal Intraocular Pressure Monitoring With a Soft Contact Lens Sensor for Glaucoma Management

open access: yesAdvanced Materials, EarlyView.
A soft contact lens sensor enables continuous, noninvasive monitoring of nocturnal intraocular pressure (IOP) under closed‐eye sleep conditions. By integrating a highly compliant inductive–capacitive circuit onto a commercial lens, the device achieves record sensitivity and stable performance.
Yumin Dai   +19 more
wiley   +1 more source

Classes of stochastically switched (blinking) systems [PDF]

open access: yes, 2007
It is investigated to what extent the trajectories of a stochastically switched (blinking) system follow the corresponding trajectories of the averaged system.
Hasler, Martin   +5 more
core   +3 more sources

Upcycling Compact Discs Into Ultra‐Stable, Flexible, and Stretchable Nanoporous Gold Electrodes for Enhanced Biosensing Performance

open access: yesAdvanced Materials Technologies, EarlyView.
This article highlights the development of robust and high‐performance flexible and stretchable biosensors that maintain long‐term functionality and optimal electrical conductivity under mechanical deformation, utilizing sustainable and cost‐effective manufacturing principles.
Mousa H. Aldosari, Ahyeon Koh
wiley   +1 more source

Don’t Blink at the Wrong Time: Smart Glasses Inducing Timely Blinks

open access: yesIEEE Access
Blinking is essential for eye health, but its frequency decreases during concentration-intensive tasks, such as using Visual Display Terminals (VDTs) or playing musical instruments, potentially leading to dry eye syndrome.
Ayumi Ohnishi   +3 more
doaj   +1 more source

Bayesian estimation of switching rates for blinking emitters

open access: yesNew Journal of Physics, 2019
Single quantum light emitters are valuable resources for engineered quantum systems. They can function as robust single-photon generators, allow optical control of single spins, provide readout capabilities for atomic-scale sensors, and provide ...
Jemy Geordy   +4 more
doaj   +1 more source

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