Results 71 to 80 of about 35,820 (279)

Exploration of the functional consequences of fixational eye movements in the absence of a fovea. [PDF]

open access: yes, 2020
A recent theory posits that ocular drifts of fixational eye movements serve to reformat the visual input of natural images, so that the power of the input image is equalized across a range of spatial frequencies.
Agaoglu, Mehmet N, Chung, Susana TL
core  

A Distal Model of Congenital Nystagmus as Nonlinear Adaptive Oscillations [PDF]

open access: yes, 2006
Congenital nystagmus (CN) is an incurable pathological spontaneous oscillation of the eyes with an onset in the first few months of life. The pathophysiology of CN is mysterious.
Berry, David + L   +1 more
core   +1 more source

Knee Crepitus and Osteoarthritis Features in Young Adults Following Traumatic Knee Injury

open access: yesArthritis Care &Research, EarlyView.
Objective This study explored the association between knee crepitus and the presence, and worsening, of structural osteoarthritis features and self‐reported outcomes in young adults following traumatic knee injury. Methods One year following anterior cruciate ligament reconstruction (ACLR), 112 participants (41 female participants; median age 28 years ...
Jamon L. Couch   +8 more
wiley   +1 more source

A comparison of accommodation and ocular discomfort change according to display size of smart devices

open access: yesBMC Ophthalmology, 2021
Background To evaluate the change of accommodation and ocular discomfort according to the display size, using quantitative measurements of accommodation and ocular discomfort through subjective and objective metrics.
Jeong Woo Kang   +2 more
doaj   +1 more source

An Adaptive Human Pilot Model With Reaction Time Delay for Enhanced Adaptive Control in Piloted Systems

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
This work introduces an adaptive human pilot model that captures pilot time‐delay effects in adaptive control systems. The model enables the prediction of pilot–controller interactions, facilitating safer integration and improved design of adaptive controllers for piloted applications.
Abdullah Habboush, Yildiray Yildiz
wiley   +1 more source

Evaluation of the Potential of Laser Shock Peening Compared with Cold Expansion for Improving Fatigue Resistance of Riveted Lap Joints of Aerospace Grade 7175 Al Alloy

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates laser shock peening for enhancing fatigue performance of riveted aerospace aluminum joints. A comparative approach with cold expansion combines fatigue testing and synchrotron X‐ray methods. Integrating mechanical testing with residual stress and strain characterization provides insights into how different treatments affect the ...
Ogün Baris Tapar   +6 more
wiley   +1 more source

Effect of Illumination on Ocular Status Modifications Induced by Short-Term 3D TV Viewing

open access: yesNeural Plasticity, 2017
Objectives. This study aimed to compare changes in ocular status after 3D TV viewing under three modes of illumination and thereby identify optimal illumination for 3D TV viewing. Methods.
Yuanyuan Chen   +5 more
doaj   +1 more source

Psychogenic convergence spasm mimicking ocular myasthenia.

open access: yesEuropean review for medical and pharmacological sciences, 2017
A 14-year-old girl presented with a two-years history of fluctuating convergent strabismus, diplopia, and reading difficulty. She has been previously diagnosed by experienced neurologists as having ocular myasthenia and she had been treated for two years with anticholinesterase inhibitors and immunomodulatory drugs.
C, Scoppetta, G, Di Gennaro
openaire   +1 more source

Trace Nickel Activated Biphasic Core‐CuOii/Shell‐CuOi Secondary Microspheres Enable Room Temperature Parts‐Per‐Trillion‐Level NO2 Detection

open access: yesAdvanced Engineering Materials, EarlyView.
An idea of designing novel sensors is proposed by creating appropriate Schottky barriers and vacancies between isomorphous Core‐CuOii/ Shell‐CuOi secondary microspheres and enhancing catalytic and spill‐over effects, and electronegativity via spontaneous biphasic separation, self‐assembly, and trace‐Ni‐doping.
Bala Ismail Adamu   +8 more
wiley   +1 more source

Refractive correction in patients with heterophoria. Case reports

open access: yesRevista Habanera de Ciencias Médicas, 2022
Introduction: Heterophoria is the misalignment of the ocular axes, which is compensated during binocular fixation using the fusion mechanism. It has a high prevalence in the population.
Legna Garrido López   +1 more
doaj  

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