Results 61 to 70 of about 196,917 (331)
Gamma rays excited radioluminescence tomographic imaging
BioMedical Engineering OnLine, 2018 Background Radionuclide-excited luminescence imaging is an optical radionuclide imaging strategy to reveal the distributions of radioluminescent nanophosphors (RLNPs) inside small animals, which uses radioluminescence emitted from RLNPs when excited by ...
Xuanxuan Zhang +7 more
doaj +1 more source
The response of monoenergetic gamma rays in finite media are investigated [PDF]
, 1969 In a study of the transport of radiation in matter, the response parameters of monoenergetic gamma rays incident on various materials with finite geometries were calculated on a CDC 3600 computer.
Snow, W. J.
core +1 more source
Gamma-Ray Burst Progenitors [PDF]
Space Science Reviews, 2016 We review our current understanding of the progenitors of both long and short duration gamma-ray bursts (GRBs). Constraints can be derived from multiple directions, and we use three distinct strands; i) direct observations of GRBs and their host galaxies, ii) parameters derived from modeling, both via population synthesis and direct numerical ...
Norbert Langer +7 more
openaire +6 more sources
Molecular Oncology, EarlyView.Tumor‐associated bacteria (TAB) dynamically influence cancer biology by modulating tumor progression, metastatic spread, and therapeutic efficacy. Their presence redefines the tumor microenvironment (TME) as a microbial–host interface, yet mechanistic insights remain limited. Understanding TAB colonization routes, functional impacts, and crosstalk with
Gerlanda Vella, Maria Rescigno
wiley +1 more source
The afterglows of gamma-ray bursts [PDF]
AIP Conference Proceedings, 2000 Gamma-ray burst astronomy has undergone a revolution in the last three years, spurred by the discovery of fading long-wavelength counterparts. We now know that at least the long duration GRBs lie at cosmological distances with estimated electromagnetic energy release of 10**51 -- 10**53 erg, making these the brightest explosions in the Universe.
Kulkarni, S. R. +11 more
openaire +10 more sources
Structural and functional characterization of chitinase from carnivorous plant Drosera adelae
FEBS Open Bio, EarlyView.A class I chitinase from the carnivorous plant Drosera adelae was expressed and purified using a yeast system, revealing high enzymatic activity. Structural analyses of the catalytic and chitin‐binding domains identified key tyrosine residues involved in substrate binding, offering insights into the enzyme's adaptation for insect digestion.
Kazunari Yoneda +7 more
wiley +1 more source
The Astrophysical Journal, 2023 All known small solar system bodies have diameters between a few meters and a few thousands of kilometers. Based on the collisional evolution of solar system bodies, a larger number of asteroids with diameters down to ∼2 m is thought to exist.
S. De Gaetano +8 more
doaj +1 more source
, 2011 Active galactic nuclei (AGN) can produce both gamma rays and cosmic rays. The observed high-energy gamma-ray signals from distant blazars may be dominated by secondary gamma rays produced along the line of sight by the interactions of cosmic-ray protons ...
Beacom, John F. +3 more
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Gamma-rays and their future [PDF]
Nuclear and Particle Physics Proceedings, 2019 9 pages, figure ...
openaire +3 more sources
Arthritis Care &Research, EarlyView.Objective Cognitive impairment (CI) is common in patients with systemic lupus erythematosus (SLE). Despite its prevalence, the immune mechanisms are not well understood. We previously reported elevated serum levels of S100A8/A9 and matrix metalloproteinase 9 (MMP‐9) in patients with SLE and CI.
Carolina Muñoz‐Grajales +18 more
wiley +1 more source