Results 91 to 100 of about 93,210 (330)

Volumetric Single‐Molecule Tracking Inside Subcellular Structures

Small, EarlyView.
This correlative microscopy approach integrates single‐molecule light‐field microscopy (SMLFM) with widefield Fourier light‐field microscopy (FLFM) to enable 3D single‐molecule tracking within the organelles of living mammalian cells. Instantaneous volumetric segmentation enhances the sensitivity of molecular organization and diffusion measurements ...
Sam Daly, Joseph E. Chambers, Caroline Jones, Bin Fu, James D. Manton, Joseph S. Beckwith, Stefan J. Marciniak, David C. Gershlick, Steven F. Lee   +8 more
wiley   +1 more source

[Astigmatism].

Der Ophthalmologe : Zeitschrift der Deutschen Ophthalmologischen Gesellschaft, 2019
Astigmatism is the most frequent refractive error worldwide followed by hyperopia and myopia. Internal astigmatism has to be differentiated from external astigmatism. Furthermore, external astigmatism can be divided into "with the rule", "against the rule" and "oblique".
N, Woltsche, P, Werkl, L, Posch-Pertl, N, Ardjomand, A, Frings   +4 more
openaire   +4 more sources

Polar Value Analysis of Low to Moderate Astigmatism with Wavefront-Guided Sub-Bowman Keratomileusis

Journal of Ophthalmology, 2017
Purpose. To evaluate the astigmatic outcomes of wavefront-guided sub-Bowman keratomileusis (WFG-SBK) for low to moderate myopic astigmatism. Methods. This study enrolled 100 right eyes from 100 patients who underwent WFG-SBK for the correction of myopia ...
Pisong Yan, Zhiyu Du, Yu Zhang
doaj   +1 more source

Decentration following femtosecond laser small incision lenticule extraction (SMILE) in eyes with high astigmatism and its impact on visual quality

BMC Ophthalmology, 2019
To measure the decentration following SMILE in eyes with high myopic astigmatism and investigate its impact on visual quality. The prospective study was conducted to analyze patients who underwent SMILE for correction of myopia and myopic astigmatism ≥2 ...
Jia Huang, Xing-tao Zhou, Yishan Qian
semanticscholar   +1 more source

Framework for X‐ray mirror surface shape fitting

Journal of Synchrotron Radiation, EarlyView.
The closed‐form expressions for elliptic cylinders, hyperbolic cylinders, ellipsoids, hyperboloids, and diaboloids used for X‐ray mirror surface shapes are summarized. Additionally, a four‐layer framework to fit the measured surface shape data in slope or height for convenient X‐ray mirror surface characterization is proposed.For accurate ...
Lei Huang, Ruochen Xu, Tianyi Wang, Jumpei Yamada, Joseph Dvorak, Corey Austin, Albert Van Eeckhout, Josep Nicolàs Roman, Kenneth Goldberg, Mourad Idir   +9 more
wiley   +1 more source

An Infrared Camera for Leuschner Observatory and the Berkeley Undergraduate Astronomy Lab

, 2001
We describe the design, fabrication, and operation of an infrared camera which is in use at the 30-inch telescope of the Leuschner Observatory. The camera is based on a Rockwell PICNIC 256 x 256 pixel HgCdTe array, which is sensitive from 0.9-2.5 micron.
James R. Graham, Offner A., Parthasarathy R., Richard R. Treffers   +3 more
core   +1 more source

Evaluation of Opposite Clear Corneal Incision in Controlling Astigmatism in Cataract Patients Undergoing Phacoemulsification Surgery

Delhi Journal of Ophthalmology, 2016
Aim: To evaluate the role of clear corneal incision combined with opposite clear corneal incision in controlling astigmatism in patients undergoing phacoemulsification surgery for cataract. Design: Prospective clinical study.
J. S. Bhalla, Meenakshi Rani, Surbhi Gupta   +2 more
doaj   +1 more source

AstigMATIC: an automatic tool for standard astigmatism vector analysis

BMC Ophthalmology, 2018
BackgroundStandardization for reporting medical outcomes facilitates clinical study comparisons and has a fundamental role on research reproducibility.
M. Gauvin, Avi Wallerstein
semanticscholar   +1 more source

How Class Influences the Ethnic Identity of Chinese Immigrants in the UK: Citizenship, Work, and Solidarity

The British Journal of Sociology, EarlyView.
ABSTRACT One of the current focal points of ethnicity research is the relationship between ethnic identity and social inequality. This paper examines how immigrants' understandings of ethnicity are influenced by class. Through life‐history interviews with 28 Chinese immigrants in the UK, I focus on the experiences and feelings of immigrants from ...
Zhaowei Yin
wiley   +1 more source

A review of angle kappa and multifocal intraocular lenses and their effect on visual outcomes

Acta Ophthalmologica, EarlyView.
Abstract Although most patients are satisfied with their vision after multifocal intraocular lens (IOL) implantation, dissatisfaction has been reported for various reasons, including poor visual outcomes and visual disturbances. Many published reports hypothesise that preoperative angle kappa may be an associated factor in patient dissatisfaction ...
Thomas Kohnen, Viswanathan Ramasubramanian, Rajaraman Suryakumar   +2 more
wiley   +1 more source