Results 11 to 20 of about 514,785 (377)

Improved GRAVITY astrometric accuracy from modeling optical aberrations [PDF]

open access: yesAstronomy & Astrophysics, 2021
The GRAVITY instrument on the ESO VLTI pioneers the field of high-precision near-infrared interferometry by providing astrometry at the 10−100 μas level. Measurements at this high precision crucially depend on the control of systematic effects.
G. Collaboration   +62 more
semanticscholar   +1 more source

Miniature optical planar camera based on a wide-angle metasurface doublet corrected for monochromatic aberrations [PDF]

open access: yesNature Communications, 2016
Optical metasurfaces are two-dimensional arrays of nano-scatterers that modify optical wavefronts at subwavelength spatial resolution. They are poised to revolutionize optics by enabling complex low-cost systems where multiple metasurfaces are ...
A. Arbabi   +5 more
semanticscholar   +1 more source

Activity of Platinum-Based Chemotherapy in Patients With Advanced Prostate Cancer With and Without DNA Repair Gene Aberrations

open access: yesJAMA Network Open, 2020
Key Points Question Is there a role for platinum-based treatment in molecularly selected patients with advanced prostate cancer? Findings In a case series of 508 patients, platinum-based therapy was associated with antitumor activity, especially among ...
S. Schmid   +35 more
semanticscholar   +1 more source

Assessing the significance of chromosomal aberrations in cancer: Methodology and application to glioma

open access: greenProceedings of the National Academy of Sciences of the United States of America, 2007
Rameen Beroukhim   +30 more
openalex   +3 more sources

OPTICAL FIELD AMPLITUDE DISTRIBUTION ON THE PATTERN PLATE OF OPTOELECTRONIC SYSTEM FOR MEASURING OF DITHER SYSTEM PARAMETERS IN RING LASER GYRO [PDF]

open access: yesНаучно-технический вестник информационных технологий, механики и оптики, 2018
Subject of Research.We study the optoelectronic system that measures vibration parameters of dither system in a ring laser gyro and serves for compensation of these oscillations.
A. A. Aviev, V. N. Enin
doaj   +1 more source

Doublet metalens design for high numerical aperture and simultaneous correction of chromatic and monochromatic aberrations.

open access: yesOptics Express, 2020
Metalens is one of the most prominent applications among metasurfaces since it gives possibilities to replace the conventional lenses for compactness and multi-functionalities.
Changhyun Kim, Sun-Je Kim, Byoungho Lee
semanticscholar   +1 more source

Treating intrasurgical complications of corneal refractive operation with customized ablation. A clinical case

open access: yesРоссийский офтальмологический журнал, 2021
Purpose: to evaluate the prospects of customized Finalfit based ablation for optical rehabilitation of a patient with corneal surface errors caused by intrasurgical microtome-induced damage of a corneal flap during a LASIK excimer laser correction of ...
N. V. Khodzhabekyan   +4 more
doaj   +1 more source

Factors Influencing Pseudo-Accommodation—The Difference between Subjectively Reported Range of Clear Focus and Objectively Measured Accommodation Range

open access: yesVision, 2019
The key determinants of the range of clear focus in pre-presbyopes and their relative contributions to the difference between subjective range of focus and objective accommodation assessments have not been previously quantified.
Sandeep K. Dhallu   +7 more
doaj   +1 more source

Numerical correction of anti-symmetric aberrations in single HRTEM images of weakly scattering 2D-objects [PDF]

open access: yes, 2014
Here, we present a numerical post-processing method for removing the effect of anti-symmetric residual aberrations in high-resolution transmission electron microscopy (HRTEM) images of weakly scattering 2D-objects.
Chen, Ming-Wei   +6 more
core   +3 more sources

Aberrations and accommodation

open access: yesClinical and experimental optometry, 2020
Modern methods of measuring the refractive state of the eye include wavefront sensors which make it possible to monitor both static and dynamic changes of the ocular wavefront while the eye observes a target positioned at different distances away from ...
A. D. Del Águila-Carrasco   +3 more
semanticscholar   +1 more source

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