Results 111 to 120 of about 313,243 (217)

Development and evaluation of an in vivo dose‐based monitoring system for electron FLASH radiation therapy

open access: yesMedical Physics, Volume 53, Issue 7, July 2026.
Abstract Background FLASH radiotherapy requires further preclinical and clinical investigation to establish its biological effectiveness and define optimal beam parameters. In conventional (CONV) radiotherapy, redundant beam termination systems are a cornerstone ensuring patient safety, yet analogous safeguards for FLASH delivery are not well ...
Justin DeFrancisco   +5 more
wiley   +1 more source

Acute Inhalation Exposure to Ultrafine Carbon Black Alters Mitochondrial Substrate Utilization in the Heart

open access: yesEnvironmental Toxicology, Volume 41, Issue 7, Page 395-406, July 2026.
ABSTRACT A majority of deaths associated with air pollution are attributed to cardiovascular and heart diseases. Carbon black that represents the carbon core of particulate matter, a major component of air pollution, has been shown to result in cardiac mitochondrial dysfunction.
William E. Mullen   +4 more
wiley   +1 more source

Luminescence dating of coastal deposits from the Chanthaburi Plain, Thailand

open access: yesBoreas, Volume 55, Issue 3, Page 846-865, July 2026.
The ongoing global sea‐level rise urges us to better understand the dynamics of coastal processes for predicting future changes. Sedimentary deposits reflect past coastal environments but require precise chronological data to place evidence into a temporal context.
Margarita Nuss   +6 more
wiley   +1 more source

Oxidation Products of S‐Adenosyl Methionine Probed by Infrared Multiple Photon Dissociation Spectroscopy

open access: yesChemPhysChem, Volume 27, Issue 12, 26 June 2026.
HO•‐induced oxidation is structurally resolved in S‐adenosyl methionine (SAM). Infrared multiple photon dissociation (IRMPD) spectroscopy and density functional theory (DFT) calculations reveal clear spectroscopic signatures of adenine C8 oxidation. S‐adenosyl methionine (SAM) is a key biomolecule in cellular processes, acting as a primary methyl donor,
Jean‐Xavier Bardaud   +6 more
wiley   +1 more source

Transit dosimetry based on water equivalent path length measured with an amorphous silicon electronic portal imaging device [PDF]

open access: yes, 2011
: Background and purpose: In vivo dosimetry is one of the quality assurance tools used in radiotherapy to monitor the dose delivered to the patient. The digital image format makes electronic portal imaging devices (EPIDs) good candidates for in vivo ...
Kavuma, Awusi
core   +1 more source

Toward a Pixelated Solid State Detector for In-Vivo Dosimetry in Radiotherapy [PDF]

open access: yes
A large area pixelated silicon array detector named \MP987" has been developed for in-vivo dosimetry. The detector was developed to overcome the non-water equivalent response of EPID (Electronic Portal Imaging Device) dosimetry systems, due to the ...
Owen John Brace (20165517)
core  

Transit dose of an Ir-192 high dose rate brachytherapy stepping stone [PDF]

open access: yes, 2001
Clinical dosimetry for high dose rate (HDR) brachytherapy with a single stepping source generally neglects the transit dose. This study investigates the effects of the transit dose in the target volume of an HDR brachytherapy stepping source.
Peter Johnston (714631)   +3 more
core  

Monte Carlo simulation of the transit dosimetric response of an a-Si electronic portal imaging device [PDF]

open access: yes
Amorphous silicon (a-Si) electronic portal imaging devices (EPIDs) are x-ray detectors frequently used in radiotherapy imaging and dosimetry applications.
L. Holloway (21271760)   +5 more
core  

A survey of practice patterns for patient-specific quality assurance on behalf of the ESTRO dosimetry & quality assurance focus group. [PDF]

open access: yesPhys Imaging Radiat Oncol
Dufreneix S   +7 more
europepmc   +1 more source

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