Results 51 to 60 of about 3,918 (223)

Elliptical versus circular flap configuration in myopic eyes undergoing femtosecond laser in situ keratomileusis surgery: A contralateral eye study

Indian Journal of Ophthalmology, 2021
Purpose: To study whether a customized elliptical flap configuration offers any visual, refractive, or biomechanical advantage over the “conventional” circular flaps in patients undergoing myopic laser in situ keratomileusis (LASIK).
Amit Gupta, Anchal Thakur, Suruchi Gupta, Chintan Malhotra, Ashish Kulshrestha, Tripti Choudhary   +5 more
doaj   +1 more source

Asphericity of length six relative group presentations [PDF]

, 2016
Combinatorial group theory is a part of group theory that deals with groups given by presentations in terms of generators and defining relations. Many techniques both algebraic and geometric are used in dealing with problems in this area. In this thesis,
Aldwaik, Suzana
core  

Atomic Scale Control of Thermal Conductivity in LaMnO3/SrMnO3 Superlattices

Advanced Electronic Materials, EarlyView.
Interface‐dominated cross‐plane thermal transport in [(LaMnO3)m/(SrMnO3)n]10 superlattices can be controlled by the octahedral rotation/tilt angle φOOR of the MnO6 octahedra, which as well is controlled by the “m/n” ratio. ABSTRACT We report atomic scale structure and phonon thermal transport in (LaMnO3)m/(SrMnO3)n/SrTiO3(100) superlattices (LMO/SMO ...
H. Ulrichs, V. Roddatis, U. Roß, J. P. Bange, D. Meyer, S. Lopatin, V. Radisch, D. Metternich, I. V. Maznichenko, S. Ostanin, R. Egoavil, I. Lazić, V. Moshnyaga   +12 more
wiley   +1 more source

Correlation between radius and asphericity in surfaces fitted by conics [PDF]

, 2012
The optical surfaces of the eye are often described in terms of their radius and asphericity. The variations caused by experimental noise in repeated measurements of radius and asphericity of the same surface are strongly correlated.
Marcos, Susana, Pérez-Escudero, Alfonso, Dorronsoro, Carlos   +2 more
core   +1 more source

Real‐Time Multicolor Fluorescence Microscopy via Cross‐Channel Acquisition and Deep‐Learning‐Based Inference

Advanced Intelligent Discovery, EarlyView.
Sequential multicolor fluorescence imaging in dynamic microsystems is constrained by acquisition speed and excitation dose. This study introduces a real‐time framework to reconstruct spectrally separated channels from reduced cross‐channel acquisitions (frames containing mixed spectral contributions).
Juan J. Huaroto, Yuxin Jin, Nicholas Roy, Sarthak Misra   +3 more
wiley   +1 more source

Evaluation of corneal symmetry after UV corneal crosslinking for keratoconus

Clinical Ophthalmology, 2017
Hanan Mofty,1,2 Khaled Alzahrani,2 Fiona Carley,3 Sophie Harper,3 Arun Brahma,3 Leon Au,3 Debbie Morley,3 M Chantal Hillarby2 1Optometry Department, College of Applied Medical Science, King Saud University, Riyadh, Kingdom of Saudi Arabia; 2Division of ...
Mofty H, Alzahrani K, Carley F, Harper S, Brahma A, Au L, Morley D, Hillarby MC   +7 more
doaj  

Clinical outcomes after intrastromal corneal ring segments reoperation in keratoconus patients

International Journal of Ophthalmology, 2013
AIM:To evaluate the clinical outcomes after Ferrara intrastromal corneal ring segments (ICRS) reoperation in patients with keratoconus.RESULTS: The mean follow-up time after the reoperation was 30.5±9.7 months. The mean UCVA improved from 20/300 to 20/80
Leonardo Torquetti , Guilherme Ferrara , Franklin Almeida , Leandro Cunha , Paulo Ferrara , Jesús Merayo-Lloves   +5 more
doaj   +1 more source

Polarization‐Dependence of Nonlinear Optical Effects in Silicon: The Case of Ultrafast Processing

Advanced Physics Research, EarlyView.
The dependence of the input polarization for the nonlinear optical propagation in silicon is investigated theoretically and experimentally. The perturbative regime is examined using pump‐probe shadowgraphy and nonlinear transmission, whereas the case of permanent laser‐induced modifications is addressed using a combination of Raman micro‐spectroscopy ...
Namig Alasgarzade, Alessandro Alberucci, Stree V. Arumugam, Markus Blothe, Maxime Chambonneau, Chandroth P. Jisha, Stefan Nolte   +6 more
wiley   +1 more source

ASPHER Statement: Planning for Winter 2022-23

Public Health Reviews, 2022
IntroductionThe Covid-19 pandemic has shown European governments were not properly prepared for such a public health emergency affecting all our countries and with deep health, social and economic consequences. Public health and other essential public services had been depleted through years of austerity [1].
John Middleton, Nadav Davidovitch, Henrique Barros, Henrique Lopes, Jose M. Martin Moreno, Amanda J. Mason-Jones, Alison McCallum, John Reid, Ralf Reintjes, Mohamud Sheek-Hussein, Judit Simon, Brian Li Han Wong, Brian Li Han Wong, Lore Leighton, Robert Otok, ASPHER   +15 more
openaire   +7 more sources

Asphericity of positive free product length 4 relative group presentations [PDF]

, 2018
© 2018 Walter de Gruyter GmbH, Berlin/Boston. Excluding some exceptional cases, we determine the asphericity of the relative presentation P = ,where a, b ∈ G \ {1} and 1 ≤ m ≤ n. If H = ≤ G, the exceptional cases occurwhen a = b2 or when H is isomorphic
Juhasz, Arye, Aldwaik, Suzana, Edjvet, Martin   +2 more
core   +1 more source