Results 61 to 70 of about 440,067 (322)
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Background Neurodegeneration with brain iron accumulation (NBIA) comprises a genetically and clinically heterogeneous group of rare neurological disorders characterized particularly by iron accumulation in the basal ganglia. To date, 15 genes have been associated with NBIA.
Seda Susgun +95 more
wiley +1 more source
Positronium signature in organic liquid scintillators for neutrino experiments
, 2011 Electron anti-neutrinos are commonly detected in liquid scintillator experiments via inverse beta decay, by looking at the coincidence between the reaction products, neutron and positron. Prior to positron annihilation, an electron-positron pair may form
B. Zgardzinska +5 more
core +3 more sources
Arthritis Care &Research, EarlyView.As many patients with inflammatory arthritis (IA) have chronic pain, understanding how to best assess and manage pain in IA is a priority. Comorbid depression is prevalent in adults with IA, affecting 15% to 39% of people. Although pain and depression are thought to be associated in IA, this concept is largely based on cross‐sectional data.
Natasha Cox +3 more
wiley +1 more source
Positron emission imaging in catalysis
Applied Catalysis A: General, 1997 A review with 52 refs.; in situ imaging technol. developed for nuclear medicine is now being applied to study the kinetics of heterogeneous catalytic reactions under actual process conditions. Minute quantities of mols. (ca. 10-15 mol), radio-labeled with positron-emitting isotopes such as 11C;13N; or 15O, are injected as pulses into the feed streams ...
BG Bruce Anderson +2 more
openaire +3 more sources
Gamma-Rays from Positron Annihilation
, 2009 SPI on INTEGRAL has provided spectra and a map of the sky in the emission from annihilations of positrons in the interstellar medium of our Galaxy.
Diehl, Roland, Leising, Mark
core +1 more source
TeV Gamma Rays from Geminga and the Origin of the GeV Positron Excess [PDF]
, 2009 The Geminga pulsar has long been one of the most intriguing MeV-GeV gamma-ray point sources. We examine the implications of the recent Milagro detection of extended, multi-TeV gamma-ray emission from Geminga, finding that this reveals the existence of an
F. Aharonian +7 more
core +2 more sources
Arthritis Care &Research, Accepted Article.Objectives The objectives of this study were to evaluate the correlation and agreement between ultrasound and computed tomography (CT) in measuring ascending aorta diameter in patients with giant cell arteritis (GCA) and to investigate the development of new ascending aortic aneurysms in patients with newly diagnosed GCA. Methods To achieve the primary
Anne C Bull Haaversen +4 more
wiley +1 more source
Deep learning based bilateral filtering for edge-preserving denoising of respiratory-gated PET
EJNMMI PhysicsBackground Residual image noise is substantial in positron emission tomography (PET) and one of the factors limiting lesion detection, quantification, and overall image quality. Thus, improving noise reduction remains of considerable interest.
Jens Maus +6 more
doaj +1 more source
Radiosynthesis of [18F]-Labelled Pro-Nucleotides (ProTides)
Molecules, 2020 Phosphoramidate pro-nucleotides (ProTides) have revolutionized the field of anti-viral and anti-cancer nucleoside therapy, overcoming the major limitations of nucleoside therapies and achieving clinical and commercial success.
Alessandra Cavaliere +7 more
doaj +1 more source
Positron emission tomography: An overview
Journal of Medical Physics, 2006 The rate of glucose utilization in tumor cells is significantly enhanced as compared to normal cells and this biochemical characteristic is utilized in PET imaging using FDG as a major workhorse. The PET systems as well as cyclotrons producing positron emitting radiopharmaceuticals have undergone continuous technological refinements.
Arvind Kumar Shukla, Utham Kumar
openaire +3 more sources