Results 121 to 130 of about 128,271 (341)
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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Advanced Functional Materials, EarlyView.Thermally crosslinked poly(2‐vinylpyridine)‐based anion conducting polyelectrolytes have been synthesized. The segmental dynamics of these polyelectrolytes have been systematically modified by varying the degree of crosslinking. Both the experimental and simulation results indicate that segmental dynamics have a limited influence on ion transport in ...
Zhongyang Wang +11 more
wiley +1 more source
ASTHENOPIA NOT DUE TO REFRACTIVE ERRORS. [PDF]
JAMA: The Journal of the American Medical Association, 1897 The inability to use apparently healthy eyes for near work, without increasing discomfort or pain, is usually caused by refractive errors, or insufficiency of accommodation. In a series of 500 patients with asthenopic complaints taken consecutively from my records, the symptoms were caused by hypermetropia, astigmatism or presbyopia in 75 to 80 per ...
openaire +2 more sources
Free‐Form Microfluidic Microneedle Array Patches
Advanced Functional Materials, EarlyView.Microfluidic microneedle array patches (MAPs) integrate hollow microneedles with embedded microfluidic channels, fabricated using high‐resolution 3D printing, to enable controlled transdermal delivery of liquid, mixed, or reconstituted therapeutics.
Ian A. Coates +11 more
wiley +1 more source
Sensitivity and Specificity of Preschool Vision Screening in Iran
Iranian Journal of Public Health, 2017 Background: To determine the sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of the National Vision Screening Program for 7 yr old children in Iran.
Hassan HASHEMI +6 more
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ON AN IMPROVED OPTOMETER FOR ESTIMATING THE DEGREE OF ASTIGMATISM AND OTHER ERRORS OF REFRACTION. [PDF]
, 1886 John Tweedy
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Advanced Functional Materials, EarlyView.This review discusses cellulose‐based hydrogels technology, analyzes their application progress in physiological signal monitoring, and explores the effects of pretreatment, crosslinking, and molding methods on gel performance, to provide valuable insights into the efficient utilization of plant fibers and the environmentally friendly development of ...
Zhiming Wang +8 more
wiley +1 more source
On an Error in Brunnow's Formulae for Differential Refraction in Distance and Position-Angle [PDF]
, 1889 Warren H. Finlay
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Ice Lithography: Recent Progress Opens a New Frontier of Opportunities
Advanced Functional Materials, EarlyView.This review focuses on recent advancements in ice lithography, including breakthroughs in compatible precursors and substrates, processes and applications, hardware, and digital methods. Moreover, it offers a roadmap to uncover innovation opportunities for ice lithography in fields such as biological, nanoengineering and microsystems, biophysics and ...
Bingdong Chang +9 more
wiley +1 more source
REFRACTIVE ERRORS IN ADULTS STUDIED AT A TEACHING HOSPITAL
Gomal Journal of Medical Sciences, 2016 Background: Refractive errors are one of the commonest causes of visual impairment and disability. The aim of this study was to evaluate the distribution of different types of refractive errors.
Hidayatullah Mahsud +3 more
doaj