Results 111 to 120 of about 619,306 (307)

Observations of Time Delays in Gravitational Lenses from Intensity Fluctuations: The Coherence Function

, 2008
Measurements of the spectrum of the fluctuations of the output current of the quadratic detector of a telescope can be used to find unresolved astronomical gravitational lenses and determine time delays between their image components.
Alford, Basano, Blandford, Borra, Bracewell, Brannen, Cielo, Ermanno F. Borra, Forrester, Forrester, Forrester, Givens, Goodman, Hanbury Brown, Hanbury Brown, Klein, Loudon, Magyar, Mandel, Mandel, Peterson, Press, Purcell, Refsdal, Refsdal, Spillar, Twiss   +26 more
core   +1 more source

Transparent Inorganic–Organic Bilayer Neural Electrode Array and Integration to Miniscope System for In Vivo Calcium Imaging and Electrophysiology

Advanced Functional Materials, EarlyView.
This study presents the BioCLEAR system, a highly transparent and conductive neural electrode array composed of silver nanowires (AgNWs) and doped PEDOT:PSS, enabling neural recordings with minimal optical artifacts. When integrated with a GRIN lens, this cost‐effective neural implant allows simultaneous electrophysiological recording and GCaMP6‐based ...
Dongjun Han, Kevin Cheng, Swathy Sampath Kumar, Anil Bollimunta, Elizabeth E. Torr, Juhwan Kim, Kyoungmin Kim, Hyungjun Choi, Seongkwon Hwang, Sarah Brodnick, David Cheng, Lindsay Gray, Yei Hwan Jung, William L. Murphy, Aaron J. Suminski, Jonathan J. Nassi, Justin C. Williams, Dong‐Wook Park   +17 more
wiley   +1 more source

A comparison of posterior capsular opacification after implantation of three different hydrophobic square edge intraocular lenses

Indian Journal of Ophthalmology, 2019
Purpose: To compare the posterior capsular opacification (PCO) after implantation of three types of hydrophobic square edge intraocular lenses (IOLs). Methods: A single-center, hospital-based, cross-sectional, observational study was conducted wherein ...
H Vijaya Pai, Atiya Pathan, Yogish Subraya Kamath   +2 more
doaj   +1 more source

Update on Contact Lens Treatment of Keratoconus

Türk Oftalmoloji Dergisi, 2020
Keratoconus (KC) is a progressive disease that leads to major losses of visual quality and related quality of life. Contact lens (CL) application has a primary place and importance in the correction of the optic problems due to the disease.
Tomris Şengör, Sevda Aydın Kurna
doaj   +1 more source

Biomimetic Iridescent Skin: Robust Prototissues Spontaneously Assembled from Photonic Protocells

Advanced Functional Materials, EarlyView.
Uniform nanoparticles are induced to form arrays (photonic crystals) in the cores of biopolymer capsules, endowing these ‘protocells’ with structural color. These protocells are then assembled into large self‐standing objects, i.e., prototissues, with robust mechanical properties as well as iridescent optical properties.
Medha Rath, Briahnah Streeter, Satyam Srivastava, Jemma Wood, William E. Bentley, Taylor J. Woehl, Srinivasa R. Raghavan   +6 more
wiley   +1 more source

Quartz isolatings in the shales and amphibolites of the East-Ufalei zone as a source for the production of high-purity quartz raw materials (Southern Urals)

Литосфера, 2019
Research subject. In this research, we studied lenses, nodules and interlayers of granulated quartz, which are located in amphibolites and shales in the eastern part of the Ufalei gneso-amphibolite complex.Materials and methods.
M. A. Igumentseva, L. Y. Kabanova, V. N. Anfilogov, M. V. Shtenberg, I. A. Blinov, V. M. Ryzhkov   +5 more
doaj   +1 more source

Gravitational Microlensing by the MACHOs of the LMC

, 1993
The expected microlensing events of the LMC by the MACHOs of the LMC itself are calculated and compared with analogue events by objects in the Galactic halo. The LMC matter distribution is modelled by a spherical halo and an exponential disk while a face-
Wu, Xiang-Ping
core   +2 more sources

Smart, Bio‐Inspired Polymers and Bio‐Based Molecules Modified by Zwitterionic Motifs to Design Next‐Generation Materials for Medical Applications

Advanced Functional Materials, EarlyView.
Bio‐based and (semi‐)synthetic zwitterion‐modified novel materials and fully synthetic next‐generation alternatives show the importance of material design for different biomedical applications. The zwitterionic character affects the physiochemical behavior of the material and deepens the understanding of chemical interaction mechanisms within the ...
Theresa M. Lutz, Jonas De Breuck, Sahar Salehi, Meike N. Leiske   +3 more
wiley   +1 more source

The Disinfecting Potential of Contact Lens Soutions used by Sultan Qaboos University Students

Sultan Qaboos University Medical Journal, 2011
Objectives: This study aimed to determine the disinfecting potential of some contact lens solutions used by some university students in Oman. Methods: This work was carried out from January to June 2010 in the Department of Microbiology & Immunology ...
B. C. Nzeako, Sara H Al-Sumri
doaj  

Generalised model-independent characterisation of strong gravitational lenses III: perturbed axisymmetric lenses

, 2017
In galaxy-galaxy strong gravitational lensing, Einstein rings are generated when the lensing galaxy has an axisymmetric lensing potential and the source galaxy is aligned with its symmetry centre along the line of sight.
Wagner, Jenny
core   +3 more sources