Results 41 to 50 of about 260,823 (197)
EJNMMI Radiopharmacy and ChemistryBackground Sodium 18F-fluoride for injection can be easily cyclotron-produced and purified, as a simple inorganic salt, by adsorption/desorption onto an anion-exchange cartridge and then dispensed for clinical use.
Marija Atanasova Lazareva +7 more
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Frontiers in Physics, 2019 The fast-paced development of laser-wakefield electron acceleration has recently culminated in the generation of electron beams with extreme characteristics, including femtosecond-scale duration, mrad divergence, and high-energy.
Aaron Alejo +3 more
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Towards an Improved Test of the Standard Model’s Most Precise Prediction
Atoms, 2019 The electron and positron magnetic moments are the most precise prediction of the standard model of particle physics. The most accurate measurement of a property of an elementary particle has been made to test this result.
G. Gabrielse +3 more
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Universe, 2020 We investigated the effects that occur during the circulation of ultrarelativistic electrons and positrons in the field of an X-ray pulsar. A resonant process in annihilation and the subsequent production of the electron–positron pairs were studied ...
Dmitriy V. Doroshenko +2 more
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EJNMMI Radiopharmacy and Chemistry, 2021 The aluminium-[18F]fluoride ([18F]AlF) radiolabelling method combines the favourable decay characteristics of fluorine-18 with the convenience and familiarity of metal-based radiochemistry and has been used to parallel gallium-68 radiopharmaceutical ...
Stephen J. Archibald, Louis Allott
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Radiomics Analysis of Contrast-Enhanced CT Predicts Survival in Clear Cell Renal Cell Carcinoma
Frontiers in Oncology, 2021 PurposeTo develop and validate the radiomics nomogram that combines clinical factors and radiomics features to estimate overall survival (OS) in patients with clear cell renal cell carcinoma (ccRCC), and assess the incremental value of radiomics for OS ...
Lei Yan +10 more
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On the Positron Theory of Vacuum [PDF]
Progress of Theoretical Physics, 1950 In our previous consideration, the so-called ambiguities of quantum field theory can be removed by the certain general conditions of integrals. These procedures are equivalent with the subtraction theory which subtract the ambiguous terms from the matrix element in question. In this paper, we again examine these subtractions from the slightly different
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Frontiers in Oncology, 2022 BackgroundThe aim of this study was to evaluate the clinical usefulness of radiomics signature-derived 18F-fluorodeoxyglucose (18F-FDG) positron emission tomography–computed tomography (PET-CT) for the early prediction of neoadjuvant chemotherapy (NAC ...
Liping Yang +10 more
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Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1990 Abstract A design for a two-stage positron accumulator is presented. The first stage employs remoderation cooling of positrons while the second stage utilizes electron cooling. The device is designed to produce intense pulses of positrons at low repetition rates (1–100 Hz). Preliminary results from tests on the first stage are presented.
Conti, R. S. +2 more
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Frontiers in Oncology, 2022 ObjectivesBrain metastases (BMs) are a major cause leading to the failure of treatment management for non-small-cell lung cancer (NSCLC) patients. The purpose of this study was to evaluate the predictive value of baseline metabolic tumor burden on 18F ...
Jingjie Shang +9 more
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