Results 71 to 80 of about 610,854 (344)

The gamma-ray observatory [PDF]

, 1991
An overview is given of the Gamma Ray Observatory (GRO) mission. Detection of gamma rays and gamma ray sources, operations using the Space Shuttle, and instruments aboard the GRO, including the Burst and Transient Source Experiment (BATSE), the Oriented ...

core   +1 more source

The Fermi Gamma-ray Burst Monitor: Results from the first two years [PDF]

, 2011
In the first two years since the launch of the Fermi Observatory, the Gamma-ray Burst Monitor (GBM) has detected over 500 Gamma-Ray Bursts (GRBs), of which 18 were confidently detected by the Large Area Telescope (LAT) above 100 MeV.
BISSALDI E., on behalf of the Fermi GBM Collaboration   +1 more
core   +2 more sources

Overview of molecular signatures of senescence and associated resources: pros and cons

FEBS Open Bio, EarlyView.
Cells can enter a stress response state termed cellular senescence that is involved in various diseases and aging. Detecting these cells is challenging due to the lack of universal biomarkers. This review presents the current state of senescence identification, from biomarkers to molecular signatures, compares tools and approaches, and highlights ...
Orestis A. Ntintas, Sylvia Vagena, Pavlos Pantelis, Giorgos Theocharous, Russel Petty, Konstantinos Evangelou, Vassilis G. Gorgoulis   +6 more
wiley   +1 more source

Gamma-ray Bursts: 50 Years and Counting!

Universe
Gamma-ray bursts were discovered by the Vela satellites in the late 1960s, but they were announced for the first time exactly 50 years ago, in 1973. The history of our understanding of gamma-ray bursts can be subdivided into several eras.
Alessandro Armando Vigliano, Francesco Longo   +1 more
doaj   +1 more source

Study of n/γ discrimination using 3He proportional chamber in high gamma-ray fields

Nuclear Engineering and Technology, 2019
The 3He proportional chamber is widely used for neutron measurement owing to its high neutron detection efficiency and simplicity for gamma-ray rejection.
Joonbum Choi, Junesic Park, Jaebum Son, Yong Kyun Kim   +3 more
doaj   +1 more source

Radiographic testing of 3D-printed thermoplastics using Am-241 as a gamma-ray source

Materials Research Express, 2023
The industrial production of 3D printing is known as additive manufacturing (AM), in which a computer controls the process of producing 3D objects.
Ali Alaqab, Mohammed Siddig, Essam Banoqitah, Muneer Aziz Saleh, Mohammed M Damoom, Abdulsalam M Alhawsawi, Naif Mohammed Al-Hada, W R Alharbi, Abdu Saeed   +8 more
doaj   +1 more source

130GeV gamma-ray line through axion conversion

, 2015
We apply the axion-photon conversion mechanism to the 130 GeV $\gamma$-ray line observed by the Fermi satellite. Near the Galactic center, some astrophysical sources and/or particle dark matter can produce energetic axions (or axionlike particles), and ...
Ioka, Kunihito, Kohri, Kazunori, Nojiri, Mihoko M., Yamanaka, Masato   +3 more
core   +1 more source

Day/night variations of myeloid and lymphoid cell subsets in the murine inguinal lymph node

FEBS Open Bio, EarlyView.
The circadian system is involved in the temporal regulation of the immune system. Our study reveals that two innate immune populations, NKT cells and neutrophils, predominate at the beginning of the day in healthy mice, highlighting how the time of day influences immune responses.
Paula M. Wagner, César G. Prucca, Lucia Boffelli, Virginia A. Piqueras, Silvia G. Correa, Mariana Maccioni, Mario E. Guido   +6 more
wiley   +1 more source

Gamma-ray Output Spectra from 239Pu Fission

EPJ Web of Conferences, 2015
Gamma-ray multiplicities, individual gamma-ray energy spectra, and total gamma energy spectra following neutron-induced fission of 239Pu were measured using the DANCE detector at Los Alamos.
Ullmann John
doaj   +1 more source

The extragalactic gamma-ray sky: A view on the most powerful phenomena in the universe

Mètode Science Studies Journal: Annual Review, 2017
The gamma-ray sky provides a look into the most energetic and violent processes of the universe. In the last years, gamma-ray satellites are scanning the sky for understanding the physics governing the gamma-ray emission.
Monica Orienti
doaj   +1 more source