Results 61 to 70 of about 4,053,623 (330)

Relative Biological Effectiveness (RBE) of 131I Radiation Relative to 60Co Gamma Rays [PDF]

Cell Journal, 2013
Objective: To assess relative biological effectiveness (RBE) of 131I radiation relative to 60Co gamma rays in glioblastoma spheroid cells.Materials and Methods: In this experimental study, glioblastoma spheroid cells were exposed to 131I radiation and ...
Seyed Rabie Mahdavi, Ali Mahmoud Pashazadeh, Ali Neshasteh-Riz   +2 more
doaj  

Time structure of gamma-ray signals generated in line-of-sight interactions of cosmic rays from distant blazars

, 2012
Blazars are expected to produce both gamma rays and cosmic rays. Therefore, observed high-energy gamma rays from distant blazars may contain a significant contribution from secondary gamma rays produced along the line of sight by the interactions of ...
Aharonian, Felix, Essey, Warren, Kusenko, Alexander, Prosekin, Anton   +3 more
core   +1 more source

A synthetic benzoxazine dimer derivative targets c‐Myc to inhibit colorectal cancer progression

Molecular Oncology, EarlyView.
Benzoxazine dimer derivatives bind to the bHLH‐LZ region of c‐Myc, disrupting c‐Myc/MAX complexes, which are evaluated from SAR analysis. This increases ubiquitination and reduces cellular c‐Myc. Impairing DNA repair mechanisms is shown through proteomic analysis.
Nicharat Sriratanasak, Bodee Nutho, Worawat Wattanathana, Narumon Phaonakrop, Bunnatut Panasawatwong, Katharina Erlenbach‐Wuensch, Sittiruk Roytrakul, Regine Schneider‐Stock, Pithi Chanvorachote   +8 more
wiley   +1 more source

Generation and measurement of gamma rays with axially symmetric polarization states via Compton scattering

Physical Review Research
Highly polarized gamma rays with linear or circular polarization are essential light sources for nuclear and particle physics experiments, astronomical detector evaluations, and relativistic electron beam diagnostics.
Yoshitaka Taira, Yuxuan Yang, Toshiyuki Shizuma, Mohamed Omer   +3 more
doaj   +1 more source

Hadronic Models of the Fermi Bubbles: Future Perspectives

Galaxies, 2018
The origin of sub-TeV gamma rays detected by Fermi-LAT from the Fermi bubbles at the Galactic center is still unknown. In a hadronic model, acceleration of protons and/or nuclei and their subsequent interactions with gas in the bubble volume can produce ...
Soebur Razzaque, Lili Yang
doaj   +1 more source

High Energy Gamma Rays [PDF]

, 2004
The Very High Energy Gamma Ray Astronomy (VHE) is a rapidly evolving branch of modern astronomy, which covers the range from about 50 GeV to several tens of TeV from the ground.
de Naurois, Mathieu
core   +2 more sources

On the possibility of sub-TeV Gamma-ray emission from Cyg X-3

, 2010
The compact X-ray binary system Cyg X-3 has been recently discovered as a source of GeV gamma-rays by the AGILE and the {\it Fermi} satellites. It shows emission features in the GeV gamma-rays similar to other gamma-ray binaries which were also observed ...
Abdo, Abdo, Abdo, Aharonian, Bednarek, Bednarek, Bednarek, Bednarek, Bednarek, Bednarek, Bednarek, Bosch-Ramon, Bosch-Ramon, Cerutti, Chadwick, Cherepashchuk, Georganopoulos, Hermsen, Khangulyan, Lamb, Levinson, Levinson, Malkov, Marti, Miller-Jones, Mori, Orellana, Romero, Romero, Romero, Saito, Schopper, Sierpowska, Tavani, W. Bednarek, Weekes, Weekes   +36 more
core   +1 more source

The optical afterglow of the short gamma-ray burst associated with GW170817 [PDF]

Nature Astronomy, 2018
The binary neutron star merger GW170817 was the first multi-messenger event observed in both gravitational and electromagnetic waves1,2. The electromagnetic signal began approximately two seconds post-merger with a weak, short burst of gamma rays3, which
J. Lyman, G. Lamb, G. Lamb, A. Levan, I. Mandel, I. Mandel, N. Tanvir, S. Kobayashi, B. Gompertz, J. Hjorth, A. Fruchter, T. Kangas, D. Steeghs, I. Steele, Z. Cano, C. Copperwheat, P. Evans, J. Fynbo, C. Gall, M. Im, L. Izzo, P. Jakobsson, B. Milvang-Jensen, P. O’Brien, J. Osborne, E. Palazzi, D. Perley, E. Pian, S. Rosswog, A. Rowlinson, S. Schulze, E. Stanway, P. Sutton, C. Thöne, A. D. U. Postigo, A. D. U. Postigo, D. Watson, K. Wiersema, R. Wijers   +38 more
semanticscholar   +1 more source

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, Yuki Naruse, Yusaku Suizu, Tomohiro Araki, Yoshikazu Hoshi, Haruhiko Sakuraba, Junji Hayashi, Toshihisa Ohshima   +7 more
wiley   +1 more source

The origin of cosmic rays and TeV gamma-ray astronomy

EPJ Web of Conferences, 2013
Cosmic rays are accelerated to high energies in Galactic and extragalactic objects like Supernova remnants (SNR) and active galactic nuclei (AGN). How these accelerators work and how efficient they accelerate different types of particles to energies of ...
Maier Gernot
doaj   +1 more source