Results 11 to 20 of about 13,471 (223)

Quantifying Systematic RBE-Weighted Dose Uncertainty Arising from Multiple Variable RBE Models in Organ at Risk [PDF]

open access: yesAdvances in Radiation Oncology, 2022
Purpose: Relative biological effectiveness (RBE) uncertainties have been a concern for treatment planning in proton therapy, particularly for treatment sites that are near organs at risk (OARs).
Wei Yang Calvin Koh, BSc   +7 more
doaj   +2 more sources

RBE and the Primary Mechanism of Radiation Action [PDF]

open access: yesRadiation Research, 1971
The dependence of RBE on dose appears to follow a simple relation for a variety of effects on higher organisms and for a broad range of doses. The data indicate that the biological effects are due to primary lesions that may be produced by one or two high LET particles but require the action of at least two electrons when electromagnetic radiation is ...
Kellerer, Albrecht M., Rossi, H. H.
openaire   +6 more sources

Dependence on neutron energy of the OER and RBE [PDF]

open access: yesInternational Journal of Radiation Oncology*Biology*Physics, 1982
Trials of neutrons as an alternative to x-rays for the radiotherapy of human cancer are underway in Great Britain, the United States, Continental Europe and Japan. The investment of time, effort and resources is considerable and from the outset the need has been recognized for cooperation between centers and across national boundaries. A major obstacle
Hall, E. J.   +2 more
openaire   +6 more sources

Deviations from the inverse relationship between tumor and normal tissue dose and RBE in fast neutron data are compatible with the presence of hypoxia, with possible applications to hypo-fractionated proton therapy [PDF]

open access: yesFrontiers in Oncology
Aim of studyFast neutron data from Hammersmith (UK) showed that the inverse relationship between dose and RBE (Relative Biological Effectiveness) is not maintained in many in vivo situations, originally attributed to hypoxic effects.
Bleddyn Jones, Bleddyn Jones
doaj   +2 more sources

Who labels best? Radiologists, rules, or large language models for CT reports on pulmonary embolism [PDF]

open access: yesEuropean Radiology Experimental
Objective To compare open-weight and proprietary large language models (LLMs), a rule-based extractor (RBE) and radiologists for labelling pulmonary embolism CT reports, and to test whether a hybrid RBE–LLM workflow improves labelling performance ...
Matthias A. Fink   +10 more
doaj   +2 more sources

Benchmarking proton RBE models [PDF]

open access: yesPhysics in Medicine & Biology
Abstract Objective. To biologically optimise proton therapy, models which can accurately predict variations in proton relative biological effectiveness (RBE) are essential. Current phenomenological models show large disagreements in RBE predictions, due to different model assumptions and ...
Lydia L Gardner   +2 more
openaire   +6 more sources

Effects of Rice Bran Extract on the Quality and Digestive Properties of Chinese Steamed Buns [PDF]

open access: yesFoods
This study investigated the effects of rice bran extract (RBE) on the quality and digestibility of Chinese steamed buns (CSBs). RBE decreased the starch pasting properties, weakened the starch gel network structure, and reduced the storage modulus (G ...
Jing Liu   +6 more
doaj   +2 more sources

Proton RBE models: commonalities and differences [PDF]

open access: yesPhysics in Medicine & Biology, 2021
Abstract Uncertainties in the relative biological effectiveness (RBE) of protons remains a major barrier to the biological optimisation of proton therapy. While a constant value of 1.1 is widely used in treatment planning, extensive preclinical in vitro and
McMahon, Stephen J; id_orcid
openaire   +6 more sources

A novel inflammation-nutrition risk score (INRS) and its related nomogram model to predict radiological bronchiectasis in patients after tuberculosis infection in Wuhan, China [PDF]

open access: yesAnnals of Medicine
Background Tuberculosis infection (TBI) is a significant cause of bronchiectasis (BE). Identifying risk factors for radiological BE (RBE) could enhance the early detection of high-risk individuals following TB infection.
Qi Yu   +8 more
doaj   +2 more sources

RBE no SciELO [PDF]

open access: yesRevista Brasileira de Epidemiologia, 2004
Abel Laerte Packer
doaj   +2 more sources

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