Results 61 to 70 of about 10,092 (250)

Two-Dimensional Autofocus for Ultra-High-Resolution Squint Spotlight Airborne SAR Based on Improved Spectrum Modification

Remote Sensing
For ultra-high-resolution (UHR) squint spotlight airborne synthetic aperture radar (SAR), the severe range-azimuth coupling caused by squint mode and the spatial and frequency dependence of the motion error brought by ultra-wide bandwidth both make it ...
Min Chen, Xiaolan Qiu, Yao Cheng, Mingyang Shang, Ruoming Li, Wangzhe Li   +5 more
doaj   +1 more source

Spontaneous resorption of sub-retinal cortical lens material

Indian Journal of Ophthalmology, 2014
We report a rare case of retained sub-retinal cortical material, which underwent spontaneous resorption. Patient presented with a left eye traumatic retinal detachment with a large retinal tear and posteriorly dislocated cataractous lens.
Salil S Gadkari, Sucheta R Kulkarni, Kuldeep Dole   +2 more
doaj   +1 more source

Ultra‐Fast and Energy‐Efficient PZT Optical Tunable Delay Lines for Programmable Photonic Systems

Laser &Photonics Reviews, EarlyView.
Thin‐film PZT enables optical tunable delay lines that simultaneously offer sub‐nanosecond switching, low propagation loss, and zero‐static‐power programmability. A five‐bit on‐chip delay line provides a maximum delay of 387.5 ps with a resolution of 12.5 ps, while reconfigurable MZI splitting ratios further enable non‐volatile optical arbitrary ...
Cunyu Shi, Chenlei Li, Wei Chen, Shengjie Tang, Tao Shu, Haojie Zhu, Haorui Liu, Yueyang Zhang, Long Zhang, William Shieh, Feng Qiu, Daoxin Dai   +11 more
wiley   +1 more source

Anterior ischemic optic neuropathy in association with optic nervehead drusen

Indian Journal of Ophthalmology, 2014
Optic nerve head drusen (ONHD) are incidental ophthalmologic finding in the optic nerve. Patients with ONHD are often asymptomatic, but sometimes present with transient visual obscuration′s (TVO), the reported incidence of which is 8.6%. Optic nerve head
Bharathi Megur, Deepak Megur, Umesh Megur, Sandeep Reddy   +3 more
doaj   +1 more source

Capsulotomy With Supine Nd:YAG Laser in Children

Lasers in Surgery and Medicine, EarlyView.
ABSTRACT Objectives To evaluate the visual outcomes of Nd:YAG laser posterior capsulotomy performed in the supine position under general anesthesia in children with visual axis opacification after cataract surgery. Materials and Methods A retrospective clinical case series of 13 eyes of 9 children with visual axis opacification following congenital ...
Nike Klun, Manca Tekavčič Pompe
wiley   +1 more source

The perceived personality traits of adults with digitally induced large angle strabismus and the impact of its correction

Indian Journal of Ophthalmology, 2014
Purpose: To ascertain the effect of digitally induced large angle strabismus and its correction on social bias against strabismic adults. Subjects and Methods: This prospective, observational study included 10 orthotropic subjects whose face photographs ...
Mihir Kothari, Vitan Joshi
doaj   +1 more source

The Establishment and Verification of a Velocity Doppler Transfer Model for Dual-Beam Squint Airborne SAR

Remote Sensing
Measuring ocean currents is essential for oceanographic studies, and dual-beam squint airborne SAR measurements provide significant advantages, including flexibility, cost-effectiveness, and extensive coverage.
Jingwei Gu, Baochang Liu, Yijun He, Xiuzhong Li   +3 more
doaj   +1 more source

AGRN‐, LRP4‐, MUSK‐Related CMS: Clinical, Neurophysiological, Morphological, Genetic and Pathological Mechanisms

Muscle &Nerve, EarlyView.
ABSTRACT Congenital myasthenic syndromes (CMS) are inherited disorders caused by mutations in genes encoding proteins essential for neuromuscular junction (NMJ) function. Pathogenic variants have been identified in more than 35 genes, underscoring the complexity of synaptic biology and the wide range of mechanisms that can compromise neuromuscular ...
Rocio‐Nur Villar‐Quiles, Damien Sternberg, Marie‐Christine Nougues, Arnaud Isapof, Bruno Eymard, Stéphanie Bauché   +5 more
wiley   +1 more source

Terahertz Squint SAR Imaging Based on Decoupled Frequency Scaling Algorithm

Remote Sensing
Terahertz synthetic aperture radar (SAR) can achieve high-resolution imaging of the target area through a large bandwidth, while squint imaging can flexibly detect the target area by adjusting the beam direction.
Yuang Wang, Jun Yi, Yuzheng Zhao, Hongqiang Wang, Bin Deng, Qi Yang   +5 more
doaj   +1 more source

The Differing Phenotypes of the Three Most Common Postsynaptic Congenital Myasthenic Syndromes Governed by Their Underlying Molecular Pathogenic Mechanisms

Muscle &Nerve, EarlyView.
ABSTRACT The congenital myasthenic syndromes are rare disorders of impaired signal transmission at the neuromuscular junction. Despite next generation sequencing facilitating the identification of variants in myasthenic‐associated genes, these variants are frequently of unknown significance and the clinical diagnosis can be delayed.
David Beeson
wiley   +1 more source