Results 21 to 30 of about 993,723 (315)
We propose a single phase-only optical element that transforms different orbital angular momentum (OAM) modes into localized spots at separated angular positions on a transverse plane. We refer to this element as an angular lens since it separates out OAM modes in a manner analogous to how a converging lens separates out transverse wave-vector modes at
Rishabh Sahu +5 more
openaire +4 more sources
Central nervous system (CNS) diseases are one of the top causes of death worldwide. As there is a difficulty of drug penetration into the brain due to the blood–brain barrier (BBB), many CNS drugs treatments fail in clinical trials.
Elisa L. J. Moya +7 more
doaj +1 more source
Background Visually guided behaviors such as optomotor and optokinetic responses, phototaxis, and prey capture are crucial for survival in zebrafish and become apparent after just a few days of development.
Chiara Fornetto +3 more
doaj +1 more source
Hydrophobic versus hydrophilic acrylic intraocular lens on posterior capsule opacification: a Meta-analysis [PDF]
AIM: To conduct a Meta-analysis pooling randomized controlled trials (RCTs) to compare hydrophobic with hydrophilic acrylic intraocular lenses in terms of posterior capsule opacification (PCO) development.
Qiong Wu, Yan Li, Lian Wu, Cong-Yi Wang
doaj +1 more source
Probing Globular Protein Self-Assembling Dynamics by Heterodyne Transient Grating Experiments
In this work, we studied the propagation of ultrasonic waves of lysozyme solutions characterized by different degrees of aggregation and networking. The experimental investigation was performed by means of the transient grating (TG) spectroscopy as a ...
Sara Catalini +4 more
doaj +1 more source
Ultraviolet autofluorescence (UVAF) imaging is used to visualise ocular surface changes due to sunlight exposure and so is considered to be a biomarker for UV damage.
Pryntha Rajasingam +5 more
doaj +1 more source
The soft-focus lens and Anglo-American pictorialism [PDF]
Electronic version excludes illustrations for which permission has not been granted by the rights holderThe history, practice and aesthetic of the soft focus lens in photography is elucidated and developed from its earliest statements of need to the ...
Young, William Russell
core +2 more sources
SCHWARZ PROBLEM IN LENS AND HALF LENS
Summary: We consider the Schwarz boundary value problem (BVP) for the inhomogeneous Cauchy-Riemann equation in lenses and half lenses. By the technique of parqueting-reflection and the Cauchy-Pompeiu representation formula for lenses and half lenses, the Cauchy-Schwarz representation formula is obtained.
Joveini, Fatemeh, Akbari, Mozhgan
openaire +2 more sources
Fiber-Based SERS-Fluidic Polymeric Platforms for Improved Optical Analysis of Liquids
Downsizing surface-enhanced Raman spectroscopy (SERS) within microfluidic devices has opened interesting perspectives for the development of low-cost and portable (bio)sensors for the optical analysis of liquid samples. Despite the research efforts, SERS-
Caterina Credi +6 more
doaj +1 more source
An international survey of daily disposable contact lens prescribing
Free to read\ud \ud Purpose\ud \ud The aim was to determine the extent of daily disposable contact lens prescribing worldwide and to characterise the associated demographics and fitting patterns.\ud \ud Methods\ud \ud Up to 1,000 survey forms were sent ...
Morgan, Philip B. +3 more
core +1 more source

