Results 41 to 50 of about 442,874 (245)

Full Potential Linearized Augmented Plane Wave Calculations of Electron and Positron Energy Levels in TlBr and TlCl

open access: yesAnnals of West University of Timisoara: Physics, 2023
Theoretical research was conducted on the energy levels of electrons and positrons in zinc-blend TlBr and TlCl using the first-principle full potential linearized augmented plane wave method based on the gradient generalized approximation GGA.
Bousahla Mohammed Alaa   +5 more
doaj   +1 more source

PET/CT Radiomic Features: A Potential Biomarker for EGFR Mutation Status and Survival Outcome Prediction in NSCLC Patients Treated With TKIs

open access: yesFrontiers in Oncology, 2022
BackgroundsEpidermal growth factor receptor (EGFR) mutation profiles play a vital role in treatment strategy decisions for non–small cell lung cancer (NSCLC).
Liping Yang   +10 more
doaj   +1 more source

Development of an automated method for in-house production of sodium 18F-fluoride for injection: process validation as a step toward routine clinical application

open access: yesEJNMMI Radiopharmacy and Chemistry
Background 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
doaj   +1 more source

Physics of pure and non-pure positron emitters for PET: a review and a discussion

open access: yesEJNMMI Physics, 2016
With the increased interest in new PET tracers, gene-targeted therapy, immunoPET, and theranostics, other radioisotopes will be increasingly used in clinical PET scanners, in addition to 18F.
M. Conti, L. Eriksson
semanticscholar   +1 more source

The aluminium-[18F]fluoride revolution: simple radiochemistry with a big impact for radiolabelled biomolecules

open access: yesEJNMMI 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
doaj   +1 more source

HAWC Observations Strongly Favor Pulsar Interpretations of the Cosmic-Ray Positron Excess [PDF]

open access: yes, 2017
Recent measurements of the Geminga and B0656+14 pulsars by the gamma-ray telescope HAWC (along with earlier measurements by Milagro) indicate that these objects generate significant fluxes of very high-energy electrons.
D. Hooper, I. Cholis, T. Linden, K. Fang
semanticscholar   +1 more source

Radiomics Analysis of Contrast-Enhanced CT Predicts Survival in Clear Cell Renal Cell Carcinoma

open access: yesFrontiers 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
doaj   +1 more source

ELECTRON-POSITRON- COLLIDERS [PDF]

open access: yesInternational Journal of Modern Physics A, 2002
An electron-positron linear collider in the energy range between 500 and 1000 GeV is of crucial importance to precisely test the Standard Model and to explore the physics beyond it. The physics program is complementary to that of the Large Hadron Collider.
openaire   +2 more sources

Alternative Positron-Target Design for Electron-Positron Colliders [PDF]

open access: yes, 1991
Current electron-positron linear colliders are limited in luminosity by the number of positrons which can be generated from targets presently used. This paper examines the possibility of using an alternate wire-target geometry for the production of positrons via an electron-induced electromagnetic cascade shower. 39 refs., 38 figs., 5 tabs.
Donahue, R. J., Nelson, W. R.
openaire   +3 more sources

Identifying active vascular microcalcification by 18F-sodium fluoride positron emission tomography

open access: yesNature Communications, 2015
Vascular calcification is a complex biological process that is a hallmark of atherosclerosis. While macrocalcification confers plaque stability, microcalcification is a key feature of high-risk atheroma and is associated with increased morbidity and ...
Agnese Irkle   +13 more
semanticscholar   +1 more source

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