Results 81 to 90 of about 1,118,673 (315)

Comparison of visual field test results obtained through Humphrey matrix frequency doubling technology perimetry versus standard automated perimetry in healthy children

Indian Journal of Ophthalmology, 2013
Aims : The aim of this study was to compare the visual field test results in healthy children obtained via the Humphrey matrix 24-2 threshold program and standard automated perimetry (SAP) using the Swedish interactive threshold algorithm (SITA)-Standard
Sibel Kocabeyoglu, Salih Uzun, Mehmet Cem Mocan, Banu Bozkurt, Murat Irkec, Mehmet Orhan   +5 more
doaj   +1 more source

Unilateral Right Parietal Damage Leads to Bilateral Deficit for High-Level Motion [PDF]

, 2001
Patients with right parietal damage demonstrate a variety of attentional deficits in their left visual field contralateral to their lesion. We now report that patients with right lesions also show a severe loss in the perception of apparent motion in ...
Barton, Jason J.S., Battelli, Lorella, Cavanagh, Patrick, Hénaff, Marie-Anne, Intriligator, James, Michèl, François, Tramo, Mark J.   +6 more
core   +1 more source

Dosimetric evaluation and clinical application of collimated apertures with proton beam line scanning in stereotactic radiotherapy

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Stereotactic radiotherapy (SRT) is a highly effective treatment with precision for small, localized lesions. Proton therapy, characterized by the Bragg peak, offers superior dose conformity compared to photon‐based approaches. However, challenges remain in minimizing lateral penumbra and optimizing dose delivery, particularly for small
Chen‐Yu Chou, Hsiao‐Chieh Huang, Shen‐Hao Lee, Shih‐Ming Hsu   +3 more
wiley   +1 more source

Statistical Mechanics and Visual Signal Processing

, 1994
The nervous system solves a wide variety of problems in signal processing. In many cases the performance of the nervous system is so good that it apporaches fundamental physical limits, such as the limits imposed by diffraction and photon shot noise in ...
Bialek, William, Potters, Marc
core   +2 more sources

The Relative Odds of Progressing by Structural and Functional Tests in Glaucoma. [PDF]

, 2016
PurposeThe purpose of this study was to evaluate the effect of disease severity and number of tests acquired during follow-up on the relative odds of identifying progression by structural or functional tests in glaucoma.MethodsThis was an observational ...
Abe, Ricardo Y, Baig, Saif, Diniz-Filho, Alberto, Gracitelli, Carolina PB, Marvasti, Amir H, Medeiros, Felipe A, Weinreb, Robert N, Zangwill, Linda M   +7 more
core   +1 more source

Radiotherapy medical physics in the Philippines: A contemporary overview

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose With cancer ranking as the third leading cause of death in the Philippines and a disparity in healthcare resources across regions, this research aimed to assess the state of radiotherapy medical physics in the country. Methodology The study utilized a comprehensive online survey with 94 structured questions answered by 19 clinics ...
John Paul C. Cabahug, Ramon Carlo Cruzpero, Luis E. Fong de los Santos, Eric C. Ford, Afua A. Yorke   +4 more
wiley   +1 more source

Artful Citizenship Project- Year 3 [PDF]

, 2006
Artful Citizenship is an arts-integrated social studies curriculum project designed to provide third- through fifth- grade students and teachers with the tools necessary to: * develop visual literacy skills; * implement social science content across ...

core  

Resolved Spectroscopy of M Dwarf/L Dwarf Binaries. IV. Discovery of an M9 + L6 BInary Separated by Over 100 AU

, 2010
We report the discovery of a faint L6 \pm 1 companion to the previously known M9 dwarf, 2MASS J01303563-4445411, based on our near-infrared imaging and spectroscopic observations with the 3m Infrared Telescope Facility SpeX imager/spectrometer.
Ackerman, Adam J. Burgasser, Basri, Berger, Berger, Bochanski, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burgasser, Burningham, Burrows, Cargile, Caselli, Chabrier, Close, Cruz, Cushing, Cushing, Cutri, Dagny L. Looper, Dhital, Duquennoy, Faherty, Faherty, Geballe, Gelino, Gizis, Gizis, Jurić, Keivan G. Stassun, Kirkpatrick, Kirkpatrick, Kirkpatrick, Kirkpatrick, Kouwenhoven, Kroupa, Looper, Looper, Low, Lépine, Martin, Martín, McElwain, McLean, Mohanty, Peterson, Reid, Reid, Reid, Reiners, Reipurth, Saumon, Saurav Dhital, Schmidt, Schmidt, Skrutskie, Stauffer, Stauffer, Stephens, Tokunaga, Tsuji, Voges, West, Wielen   +70 more
core   +1 more source

Increased visual sensitivity and occipital activity in patients with hemianopia following vision rehabilitation [PDF]

, 2021
Hemianopia, loss of vision in half of the visual field, results from damage to the visual pathway posterior to the optic chiasm. Despite negative effects on quality of life, few rehabilitation options are currently available.
Ajina, Sara, Bridge, Holly, Junemann, Kristin, Sahraie, Arash   +3 more
core  

Impact of respiratory motion on dose distribution in SIB‐SBRT for lung cancer

Journal of Applied Clinical Medical Physics, EarlyView.
Abstract Purpose Respiratory motion is a major source of dose uncertainty in lung cancer radiotherapy. The dose distribution of simultaneous integrated boost‐stereotactic body radiotherapy (SIB‐SBRT) is inhomogeneous and is significantly impacted by respiratory motion for lung cancer. The effect of respiratory motion on SIB‐SBRT was investigated with a
Lingling Liu, Zhenle Fei, Jie Li, Jiong Shu, Jingyuan Shao, Jianguang Zhang, Xiangli Cui, Hongzhi Wang   +7 more
wiley   +1 more source