Results 11 to 20 of about 216,958 (318)

Prisms in Ophthalmology

open access: yesDelhi Journal of Ophthalmology, 2022
With their numerous diagnostic and therapeutic applications, prisms are an indispensable part of ophthalmology. Prisms have been used as reflectors in various ophthalmic instruments, while their other properties have made them an essential tool in the ...
Himshikha Aggarwal
doaj   +1 more source

Use of prisms in ophthalmology: a review Part 1. The use of prisms in strabismus: historical background, methodologies and their outcomes

open access: yesJournal of Ophthalmology, 2020
The paper points to the principle of prisms: if a prism is placed in front of the strabismic eye, images of objects impinging upon the peripheral retina are projected to the central pit, which creates optimal conditions for cooperation of both eyes and ...
V.I. Serdiuchenko
doaj   +1 more source

Metal chalcogenide hollow polar bipyramid prisms as efficient sulfur hosts for Na-S batteries

open access: yesNature Communications, 2020
Sodium sulfur batteries require efficient sulfur hosts that can capture soluble polysulfides and enable fast reduction kinetics. Herein, we design hollow, polar and catalytic bipyramid prisms of cobalt sulfide as efficient sulfur host for sodium sulfur ...
M. Aslam   +7 more
semanticscholar   +1 more source

Enamel ultrastructure of lower molars of the red squirrel Sciurus vulgaris (Rodentia, Mammalia) from different populations in Ukraine [PDF]

open access: yesTheriologia Ukrainica, 2019
The second lower molars of the red squirrel Sciurus vulgaris from different regions of Ukraine were examined in order to search for additional features to study the variability and clarify the subspecies status of its individual populations.
Leonid Rekovets   +3 more
doaj   +1 more source

Use of prisms in ophthalmology: a review. Part 2. Use of prisms in heterophoria, nystagmus, and visual nervous system disorders

open access: yesJournal of Ophthalmology, 2022
Prism correction can be helpful not only for patients with strabismus, but also for those with other eye conditions. In heterophoria, especially in the presence of asthenopic complaints, prisms can be used for compensation for latent strabismus and ...
Use of prisms in ophthalmology: a review. Part 2. Use of prisms in heterophoria, nystagmus, and visual nervous system disorders
doaj   +1 more source

Prisms in ophthalmology

open access: yesJournal of Clinical Ophthalmology and Research, 2021
Prisms are used commonly in ophthalmic practice. In strabismus, they have a diagnostic and therapeutic role. Various types of prisms used in ophthalmology have been explained in the article.
Smita Kapoor
doaj   +1 more source

PRISMS-PF: A general framework for phase-field modeling with a matrix-free finite element method

open access: yesnpj Computational Materials, 2020
A new phase-field modeling framework with an emphasis on performance, flexibility, and ease of use is presented. Foremost among the strategies employed to fulfill these objectives are the use of a matrix-free finite element method and a modular ...
S. DeWitt   +4 more
semanticscholar   +1 more source

Wind Forces and Flow Patterns of Three Tandem Prisms with a Small Height–Width Ratio

open access: yesApplied Sciences, 2022
Wind tunnel tests and large eddy simulations were conducted to investigate the dependency of wind forces and flow patterns on the spacing (S) for three tandem prisms with a small height–width ratio H/W = 0.4. At the spacing ratio S/W = 0.7, mean and root-
Kun Du, Bo Chen
doaj   +1 more source

Tuning the Reactivity of Cofacial Porphyrin Prisms for Oxygen Reduction Using Modular Building Blocks.

open access: yesJournal of the American Chemical Society, 2020
We assembled eight cofacial porphyrin prisms using MTPyP (M = Co(II) or Zn(II), TPyP = 4-tetrapyridylporphyrin) and functionalized ruthenium-based "molecular clips" using coordination-driven self-assembly.
Matthew R. Crawley   +5 more
semanticscholar   +1 more source

Evaluating composite nanomaterials to control corrosion of reinforcing steel using different tests

open access: yesCase Studies in Construction Materials, 2022
There is limited research on the utilization of composite nanomaterials to control corrosion of reinforcing steel in concrete. Therefore, this work was initiated to evaluate the composite nanomaterials (zinc oxide and titanium dioxide) to control ...
Nabil Al-Akhras   +2 more
doaj   +1 more source

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