Results 21 to 30 of about 140,809 (173)

Effect of COVID-19 related lockdown on ophthalmic practice and patient care in India: Results of a survey

open access: yesIndian Journal of Ophthalmology, 2020
Purpose: In early 2020, the World Health Organization declared the outbreak of the disease COVID-19, caused by a new variant of coronavirus 2019-nCoV as a global pandemic.
Akshay Gopinathan Nair   +2 more
doaj   +1 more source

Levels of interleukin-6 in tears before and after excimer laser treatment [PDF]

open access: yesVojnosanitetski Pregled, 2015
Background/Aim. Immune response and consequent inflammatory process which originate on ocular surface after a trauma are mediated by cytokines.
Resan Mirko   +4 more
doaj   +1 more source

Direct evidence of magnetic reconnection onset via the tearing instability [PDF]

open access: yesarXiv, 2022
Magnetic reconnection is a sporadic process responsible for energy release in space and laboratory plasmas. It is believed that the tearing mode instability may be responsible for the onset of reconnection in the magnetotail. However, due to its elusive nature, there is an absence of in-situ observations of the tearing instability prior to magnetic ...
arxiv  

Qualitative assessment of tear dynamics with fluorescein profilometry [PDF]

open access: yesContact Lens and Anterior Eye 2017 40(4) 208-212, 2019
Purpose: To describe a new methodology for tear-film dynamics assessment by observing fluorescein decay rate over time and to understand the relationship between the newly defined tear fluorescein washout rate (TFWR)and other measures of the tear film behaviour.
arxiv   +1 more source

Confused Tears

open access: yesMarvell Studies, 2022
Taking stanza two of Andrew Marvell’s “Mourning” as its focus, this essay argues that, within the poem’s multiple and intermingled readings of the mourner’s weeping, her tears fall in and out of figuration.
Diana C Wise
doaj   +2 more sources

Global Linear and Nonlinear Gyrokinetic Simulations of Tearing Modes [PDF]

open access: yesarXiv, 2023
To better understand the interaction of global tearing modes and microturbulence in the Madison Symmetric Torus (MST) reversed-field pinch (RFP), the global gyrokinetic code \textsc{Gene} is modified to describe global tearing mode instability via a shifted Maxwellian distribution consistent with experimental equilibria.
arxiv  

The physics of a small-scale tearing mode in collisionless slab plasmas [PDF]

open access: yes, 2020
Microtearing modes have been widely reported as a tearing parity electron temperature gradient driven plasma instability, which leads to fine scale tearing of the magnetic flux surfaces thereby resulting in reconnection of magnetic field lines and formation of magnetic islands.
arxiv   +1 more source

Disc Tearing in a Be Star: Predicted 3D Observations [PDF]

open access: yesarXiv, 2023
We build on our previous work involving smoothed particle hydrodynamic simulations of Be stars, by using the model that exhibited disc tearing as input into the three-dimensional Monte Carlo radiative transfer code HDUST to predict observables from a variety of viewing angles throughout the disc tearing process.
arxiv  

Variation of Concentrations of Angiotensin II, AngiotensinConverting Enzyme and Matrix Metalloprotease-9 in Tears and Serum of Patients with Diabetic Retinopathy

open access: yesOftalʹmologiâ, 2020
Diabetic retinopathy (DR) is becoming more and more widespread disease. Investigation of local changes of metabolic pathways in the eye improves our knowledge about diabetic retinopathy pathogenesis and provide perspective for the development of new ...
V. V. Neroev   +6 more
doaj   +1 more source

MicroRNA Profiling of the Tears of Children With Vernal Keratoconjunctivitis

open access: yesFrontiers in Genetics, 2022
Vernal Keratoconjunctivitis (VKC) is a chronic conjunctival inflammatory condition that typically affects children. Extracellular microRNAs (miRNAs) are small noncoding RNA molecules, the expression of which is reported to regulate cellular processes ...
Nazmul Huda Syed   +5 more
doaj   +1 more source

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