Results 121 to 130 of about 3,165,927 (351)
Ionic Control of Microstructure and Lubrication in Charged, Physically Cross‐Linked Hydrogels
Advanced Functional Materials, EarlyView.Here, charged, physically cross‐linked poly(methacrylamide‐co‐methacrylic acid) hydrogels stabilized by a short‐range attractive, long‐range repulsive potential is investigated. This work uncovers how salt addition alters not only swelling, but also the microstructure and dynamics, near‐surface stiffness and charge, and ultimately, its lubricity. Salts
Alexander Deptula +1 more
wiley +1 more source
THE NERVOUS SYMPTOMS PRODUCED IN CHILDREN BY UNCORRECTED REFRACTIVE AND MUSCULAR ERRORS. [PDF]
, 1904 J. Herbert Claiborne
openalex +1 more source
Advanced Functional Materials, EarlyView.Electromagnetic interference (EMI) shields consisting of polylactic acid (PLA) in layers with different concentrations of multiwalled carbon nanotubes (MWCNT) are produced using additive manufacturing. The permittivity function of layers with different filler concentrations is learned using data of homogeneous and randomly ordered shields.
Stijn De Smedt +5 more
wiley +1 more source
BMC Public HealthIntroduction Even though the burden of uncorrected refractive error could potentially be addressed through innovative and cost-effective approaches, integration of the services into the National Health Services (NHS) is desirable.
Shadrack Muma +2 more
doaj +1 more source
Screening for refractive error among primary school children in Bayelsa state, Nigeria
The Pan African Medical Journal, 2013 INTRODUCTION: Vision screening study in primary school children has not been done in Bayelsa State. This study aims to screen for refractive error among primary school children in Bayelsa State and use the data to plan for school Eye Health Program ...
Ibeinmo Opubiri, Chinyere Pedro-Egbe
doaj +1 more source
ON A CONNECTION BETWEEN EPILEPSY AND ERRORS OF OCULAR REFRACTION [PDF]
, 1889 Joseph Wiglesworth, T. H. Bickerton
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Nanoplasmonics Reveal Ionic‐Strength‐Driven Hydration of Nanoparticles
Advanced Functional Materials, EarlyView.Localized surface plasmon resonance (LSPR) of gold nanoparticles (AuNPs) is modulated by ionic‐strength‐dependent hydration shell compression. A predictive model connects shell thickness to non‐radiative damping and spectral shifts over seven orders of magnitude.
Yeeun Song +4 more
wiley +1 more source
A NEW FRAME FOR HOLDING SPHERICAL AND CYLINDRICAL LENSES DURING THE DETERMINATION AND CORRECTION OF ERRORS OF REFRACTION. [PDF]
, 1881 JamesE. Adams
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Design and Applications of Multi‐Frequency Programmable Metamaterials for Adaptive Stealth
Advanced Functional Materials, EarlyView.This article provides a comprehensive overview of metamaterials, including their fundamental principles, properties, synthesis techniques, and applications in stealth, as well as their challenges and future prospects. It covers topics that are more advanced than those typically discussed in existing review articles, while still being closely connected ...
Jonathan Tersur Orasugh +4 more
wiley +1 more source
Refractive error accuracy and user perceptions of a smartphone home-based tester
African Vision and Eye HealthBackground: Uncorrected refractive error accounts for nearly half of the global burden of vision impairment. The EyeQue personal vision tracker (EPVT) was created as a convenient smartphone refractometer to be used at home and order spectacles online ...
Lungile M. Buthelezi +6 more
doaj +1 more source