Results 101 to 110 of about 17,830,648 (250)

A prototype xeroscope for the noninvasive measurement of tear-breakup time

open access: yesPhilippine Journal of Ophthalmology, 2007
Objective: To develop a noninvasive method for measuring tear-breakup time (TBUT) using readily available materials. Methods: A prototype xeroscope was made using acetate with concentric rings printed on it, and cut to a diameter of 3.6 cm.
James Edward D. Herrera, MD   +1 more
doaj  

Thickness‐Defined Transport Regime Toward Near‐Ideal Area‐Type Switching

open access: yesAdvanced Materials, EarlyView.
By thinning the oxide layer, memristors pass from diode‐like and battery‐effect‐dominated behavior toward eventual short‐circuit failure. Within the intermediate 5–6 nm window, they reach a near‐ideal analog area‐type switching regime, featuring symmetric hysteresis, area‐dependent conductance, and continuous linear programming of HRS and LRS with ...
Cuo Wu   +12 more
wiley   +1 more source

Monolithically 3D‐Printed Spectral‐Spatial Meta‐Authenticators

open access: yesAdvanced Materials, EarlyView.
A single height map printed in a low‐index resin by two‐photon lithography encodes multiple visible wavelengths in one metasurface without any polarization optics. A fabrication‐aware optimization folds the printable height levels into the design, so the device is printed as optimized.
Cherry Park   +3 more
wiley   +1 more source

AI-Based Estimate of the Regional Effect of Orthokeratology Lenses on Tear Film Quality

open access: yesBioengineering
Purpose: To investigate regional changes in tear film quality associated with orthokeratology (Ortho-K) lens wear using high-resolution spatial mapping and to evaluate the potential of artificial intelligence (AI) models in anticipating these changes ...
Lo-Yu Wu   +7 more
doaj   +1 more source

The effect of fluorescein, EDTA, and thimerosal on the rate of tear breakup in man [PDF]

open access: yes, 1978
This study was undertaken to determine what effect if any that fluorescein, thimerosal, or EDTA would have on tear breakup time. It was found that fluorescein would significantly reduce tear breakup time in man.
Hadlock, Brent L
core  

Exposure to high altitude alters tear film osmolarity and breakup time.

open access: yes, 2016
AIMS: High altitude provides environmental conditions with dry air and cold temperatures that may facilitate the development of dry eye symptoms. This study investigated, for the first time, the quality of the tear film during high altitude exposure in ...

core   +1 more source

Binder‐Free Direct Ink Writing of Li6.4La3Zr1.4Ta0.6O12 Garnet Electrolytes for All‐Solid‐State Batteries

open access: yesAdvanced Materials Interfaces, EarlyView.
Polymer binders and thick pressed LLZTO pellets limit all‐solid‐state battery integration through grain‐boundary carbon and high ohmic losses. A binder‐free capillary suspension ink is direct‐ink‐written and sintered into 254 μm$\mu{\rm m}$, 95.8%‐dense Ta‐stabilized LLZTO with 17.3 mS cm−1$\text{cm}^{-1}$ bulk conductivity, enabling thinner ...
Sri Vaishnavi Thummalapalli   +7 more
wiley   +1 more source

Life‐Like Ferrous Oxide Microspheres from Kombucha

open access: yesAdvanced Materials Interfaces, EarlyView.
Kombucha bacterial cellulose, sodium alginate, and ferrous nitrate self‐assemble into membrane‐enclosed iron oxide microspheres. These microspheres bud daughter vesicles, sustain 24‐h electrochemical oscillations, and filter theta‐band signals.
Panagiotis Mougkogiannis   +2 more
wiley   +1 more source

Conformal Coating and Transfer of 2D Nanomaterials via Dynamic Interface Engineering

open access: yesAdvanced Materials Interfaces, EarlyView.
This review discusses conformal coating and transfer of two‐dimensional (2D) nanomaterials with a focus on dynamic interface engineering. By actively regulating nanosheet transport and interfacial contact during film formation, recent dynamic coating strategies overcome the limitations of conventional passive approaches and enable geometry‐adaptive ...
Seungyeon Kim   +4 more
wiley   +1 more source

Tear film break-up time (TFBUT).

open access: yes, 2012
Tear film break-up time (TFBUT).
Jung Won Kang (163902)   +11 more
core   +1 more source

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