Results 111 to 120 of about 480,268 (340)

Designing Polymer Nanocomposites for X‐Ray Shielding: Mechanisms, Architectures, and Scalable Processing

Advanced Engineering Materials, EarlyView.
This review highlights advances in lightweight, lead‐free polymer nanocomposites for diagnostic X‐ray shielding. By linking filler chemistry, dispersion, architecture, and photon interaction mechanisms, it establishes structure–performance relationships guiding material design.
Aklilu G. Messele, Hossein Ipakchi, Tizazu H. Mekonnen   +2 more
wiley   +1 more source

Temporal Protrusion of the Optic Disc Implicated in Central Visual Field Abnormalities in High Myopia: Two Case Reports

Case Reports in Ophthalmology
Introduction: Severe central visual field defects are frequently observed in highly myopic eyes. This report details 2 cases of central visual field defects in individuals with high myopia, characterized by an unusual temporal protrusion of the optic ...
Takuhei Nomura, Takeshi Yoshida, Taiju Ito, Kyoko Ohno-Matsuia   +3 more
doaj   +1 more source

Visual field defects and changes in central retinal artery occlusion.

PLoS ONE, 2019
ObjectivesTo investigate the characteristics and temporal changes in visual field defects (VFDs) in eyes with acute central retinal artery occlusion (CRAO).DesignRetrospective, observational case series.MethodsA total of 119 patients diagnosed with acute
Hyeong Min Kim, Young Joo Park, Kyu Hyung Park, Se Joon Woo   +3 more
doaj   +1 more source

Anterior Visual System Defects

, 1977
Optic Nerve-Clinical hallmarks of optic nerve disease 1. Decreased visual acuity 2. Marcus Gunn pupillary phenanenon 3. Field defects a. Central scotoma. b. Cecocentral scotoma c. Altitudinal arcuate field defect 4. Optic palor, papillitis, opticociliary
Norman J. Schatz
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Influence of Geometric Design on Mechanical Performance of Auxetic Metastructure

Advanced Engineering Materials, EarlyView.
Strategic geometric reinforcement transforms auxetic performance. This study evaluates 3D‐printed arrowhead metastructures, revealing that a modified design with local ring reinforcement suppresses premature failure to achieve superior energy absorption and structural efficiency.
Muhammad Gulzari, Supharoek Sornsomrit, Muhammad Ayaz Akbar, Stephan Rudykh   +3 more
wiley   +1 more source

Visual field defects in the course of bipolar affective disorder in a teenager

Annales Academiae Medicae Silesiensis
Visual field defects are associated with diseases of visual and central nervous systems or pituitary gland, such as retinopathies, optic nerve disorders and visual pathway pathologies or proliferative conditions.
Aleksandra Ziemba, Anna Hitnarowicz, Aneta Jerzak, Agnieszka Tronina, Erita Filipek   +4 more
doaj   +1 more source

Inverse Identification of Energy‐Dependent Laser Absorptivity in NiTi Laser Powder‐Bed Fusion via Calibrated Melt Pool Simulation

Advanced Engineering Materials, EarlyView.
A combined experimental–computational framework identifies energy‐dependent laser absorptivity for NiTi in laser powder‐bed fusion, applicable to conduction and transition modes. Single‐track experiments and thermofluid smoothed particle hydrodynamics simulations are coupled through inverse analysis of melt pool geometry.
Mohamadreza Afrasiabi, Hadi Moutablaleh, Ignatius A. Setiawan, Mehrshad Mehrpouya   +3 more
wiley   +1 more source

The Impact of Glaucomatous Visual Field Defects on Speed and Eye Movements during Reading

Siriraj Medical Journal, 2020
Objective: To investigate the link between glaucomatous visual field defects and reading performance by assessing reading speed and eye movements in reading.
Ai-Hong Chen, Shauqiah Jufri, Nathan Congdon   +2 more
doaj  

Compatibility of Methacrylate Based Resins Controls Interfacial Failure and Toughness in 3D‐Printed Multimaterial Composites

Advanced Engineering Materials, EarlyView.
This work shows that the mechanical performance of multimaterial digital light processing (DLP) printed thermoset composites is governed by resin compatibility and interfacial design rather than spatial patterning alone. Brittle and ductile resin combinations produced premature interfacial failure, while graded interfaces and mechanically compatible ...
Ahmed M. H. Ibrahim, Li Meng, Ahmad R. Najafi, Nicolas J. Alvarez   +3 more
wiley   +1 more source

Prognosis of Visual Field Defects in Stroke

, 2013
Stroke is the leading neurologic cause of visual impairment. Literature dealing with visual field recovery in cerebral strokes is surprisingly small. The aim of this study was to determine the prognosis of visual field defects due to strokes involving ...
Nayan P. Desai, MD; A. Hammad, MD; L. Dominquez; D. Snider; E. Eggenberger, DO
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