Results 141 to 150 of about 2,944,888 (391)

Impact of contact lens hygiene risk factors on the prevalence of contact lens-related keratitis in Alexandria-Egypt

open access: yesJournal of Ophthalmic Inflammation and Infection
Background This study aimed at measuring the effect of contact lens hygiene risk factors on the prevalence of contact lens-related keratitis and identifying the specific risk factors to both microbial and non-microbial keratitis independently.
Suzan Ibrahim Sakr   +9 more
doaj   +1 more source

Kokeilisitko kovia? : opas kovien korneaalisten piilolinssien sovitukseen [PDF]

open access: yes, 2014
Opinnäytetyön tarkoituksena on tuottaa opas kovien sfääristen, korneaalisten happea läpäisevien (RGP) piilolinssien sovitukseen. Opas on tarkoitettu laillistettujen piilolinssioptikoiden ja silmälääkäreiden käyttöön. Aihe on ajankohtainen, koska nykyiset
Alho, Noora   +2 more
core  

It’s time to call a spade a spade: rigid contact lens nomenclature [PDF]

open access: bronze, 2022
Nathan Efron   +2 more
openalex   +1 more source

Encoding Magnetic Anisotropies in Digital Light Processing 3D Printing

open access: yesAdvanced Functional Materials, EarlyView.
A hybrid magnetic device—combining a coaxial coil within a nested Halbach array—is presented, integrated into a DLP 3D printer to enable spatially resolved magnetic field control. This system enables complex, multimodal responses by programming liquid crystal elastomer resins for magnetic and thermal actuation, and by inducing electrically conductive ...
Eléonore Aïdonidis   +11 more
wiley   +1 more source

Monitehopiilolinssit mainettaan parempia -- miksi et tarjoaisi? : käyttäjätutkimus monitehopiilolinssien käyttäjille [PDF]

open access: yes, 2009
Opinnäytetyömme tavoitteena oli selvittää, vastaavatko optisella alalla vallitseva monitehopiilolinssien sovitustilanne sekä monitehopiilolinssien toimivuus käyttäjillä toisiaan.
Hietanen, Elina   +2 more
core  

Silver Ion‐Mediated [hk1]‐Oriented Sb2Se3 Crystal Growth for Efficient Photoelectrochemical Hydrogen Evolution

open access: yesAdvanced Functional Materials, EarlyView.
Ag+‐mediated hydrothermal crystal engineering promotes preferential [hk1]‐oriented growth of Sb2Se3 via an ultrathin MoOx interlayer, improving crystallinity and suppressing non‐radiative recombination. The optimized Ag+ treatment photocathode delivers 24.7 mA cm−2 at 0 VRHE and improved stability, revealing an ion‐modulated route to high‐performance ...
Ziying Zhang   +10 more
wiley   +1 more source

Coherent Control of Nitrogen Nuclear Spins via the VB−${\rm V}_B^-$‐Center in Hexagonal Boron Nitride

open access: yesAdvanced Functional Materials, EarlyView.
This study demonstrates coherent control of 15N nuclear spins coupled to VB−${\text{V}}_{\text{B}}^{-}$ centers in isotope‐enriched hexagonal boron nitride. Selective addressing via spin‐state mixing enables Rabi driving, quantum gates, and coherence times exceeding 10 μs$\umu{\rm s}$.
Adalbert Tibiássy   +6 more
wiley   +1 more source

Deposition of Triglyceride on Soft Contact Lenses from Lipid-Containing Artificial Tears

open access: yesSiriraj Medical Journal, 2016
Objective: To determine the amount of triglyceride deposition from a lipid-containing artificial tear eye drop (Endura® ) on three different types of contact lenses after one day and one month of simulated use.
Atiporn Thuangtong   +4 more
doaj   +2 more sources

Dual‐Interface‐Dominant Cathode Architectures Enabling Fast Sulfur Redox and Stable Interfaces in All‐Solid‐State Li‐S Batteries

open access: yesAdvanced Functional Materials, EarlyView.
An optimized carbon host nanostructure enables a dual‐interface‐dominant architecture in sulfur cathodes of solid‐state Li‐S batteries by selectively forming sulfur|carbon and sulfur|solid electrolyte interfaces. This tailored interfacial configuration accelerates sulfur redox kinetics by establishing enriched Li+/e– transport networks, while ...
Zhao Yang   +13 more
wiley   +1 more source

Natural pigments as multifunctional additives in contact lenses

open access: yesMaterials & Design
Continuous exposure to blue light emitting devices as part of modern life leads to melatonin suppression that results in poor sleep quality and overall health. Contact lenses capable of blue light filtering could be used to mitigate this issue.
C. Muhammed Shebeeb   +4 more
doaj   +1 more source

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