Results 41 to 50 of about 31,787 (267)

Improving organ dose sparing in left‐sided breast cancer with yaw‐limited volumetric modulated arc therapy: A dosimetric comparison to conventional and intensity modulated radiation therapy approaches

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Background To assess the dose‐sparing capabilities of a yaw‐limited volumetric modulated arc therapy (YL_VMAT) beam setup for adjacent organs at risk (OAR) in comparison with 3D‐conventional radiation therapy (3D‐CRT), intensity‐modulated radiation therapy (IMRT) and conventional VMAT for radiation therapy in left‐sided breast cancer patients.
Gerhard Pollul   +4 more
wiley   +1 more source

Automated photosensitivity enhancement in optical fiber tapers

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
An alternative technique that uses a flame-brush at high temperature to enhance UV light photosensitivity in an optical fiber is described. An extreme low-cost air aspirated propane-butane mini-torch is used, which produces a lower temperature flame than
Aleksander Sade Paterno   +2 more
doaj   +1 more source

Charge order in photosensitive Bi0.4Ca0.6MnO3 films [PDF]

open access: yes, 2005
We report structural and electronic characterization of the charge order phase in Bi0.4Ca0.6MnO3 films, in which photoinduced resistivity changes have been observed at temperatures approaching room temperature. In all films, lattice distortions associated with the charge order are observed, and both the wavevectors and displacements of the distortions ...
arxiv   +1 more source

Influence of the composition of (TlGaS2)1–х(TlInSe2)x solid solutions on their physical properties

open access: yesSemiconductor Physics, Quantum Electronics & Optoelectronics, 2017
The single crystals of (TlGaS2)1–х(TlInSe2)х (х = 0…0.5) solid solutions have been grown up. The photoelectric, X-ray dosimetric, dielectric and optical characteristics of the (TlGaS2)1-х(TlInSe2)х solid solutions with various compositions have been ...
S.N. Mustafaeva   +4 more
doaj   +1 more source

Effect of light intensity on resonance patterns in CDIMA reaction [PDF]

open access: yesarXiv, 2021
Photosensitive CDIMA reaction-diffusion equation is considered to explain the resonance in the linearly coupled system. The conditions for Turing instability is obtained for the coupled reaction-diffusion system. Also, determining the critical diffusion coefficients for exiting the resonance type pattern is also discussed with analytical conditions ...
arxiv  

EEG Spectral Exponents and Visual Chirp Responses Mirror Anti‐Seizure Medication Load in Refractory Focal Epilepsy

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Quantitative markers of cortical excitability may help identify responders to anti‐seizure medications (ASMs). We studied the relationship between ASM load and two electroencephalography (EEG) markers of cortical excitability in people with refractory epilepsy. Methods We included individuals with refractory focal epilepsy undergoing
Silvano R. Gefferie   +7 more
wiley   +1 more source

High prevalence of self-reported photophobia in adult ADHD

open access: yesFrontiers in Neurology, 2014
Many adult outpatients with ADHD report an oversensitivity to light. We explored the link between ADHD and photophobia in an online survey (N=494). Self-reported photophobia was prevalent in 69% of respondents with, and in 28% of respondents without ...
Denise eBijlenga, J.J. Sandra eKooij
doaj   +1 more source

Laser-induced instabilities in liquid crystal cells with a photosensitive substrate [PDF]

open access: yes, 2014
Liquid crystal layers sandwiched between a reference plate and a photosensitive substrate were investigated. We focused on the reverse geometry, where the cell was illuminated by a laser beam from the reference side. In planar cells instabilities occurred, static and dynamic ones, depending on the angle between the laser polarization and the director ...
arxiv   +1 more source

Analysis of Biomedical Signals by Flicker-Noise Spectroscopy: Identification of Photosensitive Epilepsy using Magnetoencephalograms [PDF]

open access: yesLaser Physics (2009) 19(4): 836-854, 2008
The flicker-noise spectroscopy (FNS) approach is used to determine the dynamic characteristics of neuromagnetic responses by analyzing the magnetoencephalographic (MEG) signals recorded as the response of a group of control human subjects and a patient with photosensitive epilepsy (PSE) to equiluminant flickering stimuli of different color combinations.
arxiv   +1 more source

Drug Intake and Actinic Keratosis: A Case-Control Study

open access: yesDermatology Practical & Conceptual, 2021
Background: Actinic keratosis (AK) is a form of premalignant keratinocyte dysplasia. Recently, the role of photosensitizing drugs in the development of AK has been postulated.
Andrea Sechi   +5 more
doaj   +1 more source

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