Results 11 to 20 of about 334,949 (278)
Characteristics and survival of patients with advanced cancer and p53 mutations. [PDF]
P53 mutations are associated with invasive tumors in mouse models. We assessed the p53mutations and survival in patients with advanced cancer treated in the Phase I Program. Of 691 tested patients, 273 (39.5%) had p53 mutations.
Aldape, Kenneth +12 more
core +7 more sources
OPTICAL FIELD AMPLITUDE DISTRIBUTION ON THE PATTERN PLATE OF OPTOELECTRONIC SYSTEM FOR MEASURING OF DITHER SYSTEM PARAMETERS IN RING LASER GYRO [PDF]
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
ADVANTAGES OF DIFFRACTIVE OPTICAL ELEMENTS APPLICATION IN SIMPLE OPTICAL IMAGING SYSTEMS [PDF]
The paper deals with the influence of diffractive optical elements on the optical aberrations. The correction of optical aberrations was investigated in the simple optical systems with one and two lenses (singlet and doublet).
N. D. Zoric +2 more
doaj +1 more source
Purpose: To assess impact of tear optics on repeatability of a Scheimpflug device with a Hartmann Shack aberrometer and a ray tracing aberrometer. Methods: One hundred healthy and 100 postrefractive surgery eyes underwent dry eye evaluation including ...
GairikKundu +6 more
doaj +1 more source
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]
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
Compact Aberration-Free Relay-Imaging Multi-Pass Layouts for High-Energy Laser Amplifiers
We present the results from a theoretical investigation of laser beam propagation in relay imaging multi-pass layouts, which recently found application in high-energy laser amplifiers.
Jörg Körner +2 more
doaj +1 more source
Efficacy, safety, predictability, aberrations and corneal biomechnical parameters after SMILE and FLEx: Meta-analysis [PDF]
AIM: To identify possible differences of efficacy, safety, predictability, higher-order aberrations and corneal biomechnical parameters after small-incision lenticule extraction (SMILE) and femtosecond lenticule extraction (FLEx).
Jing Ma, Nan-Jue Cao, Li-Kun Xia
doaj +1 more source
Optical Correction of Keratoconus with a Scleral Gas-Permeable Lenses
The optical properties of the cornea are determined by its ability to refract and transmit light. Keratoconus changes cornea’s shape, the surface of the cornea becomes irregular, which leads to a violation of light refraction and the occurrence of ...
A. V. Myagkov +4 more
doaj +1 more source
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

