Results 41 to 50 of about 345,959 (285)
On particle acceleration rate in GRB afterglows
, 2012 It is well known that collisionless shocks are major sites of particle acceleration in the Universe, but the details of the acceleration process are still not well understood.
Abdo +20 more
core +1 more source
The effect of the Basset history force on particle clustering in Homogeneous and Isotropic Turbulence [PDF]
, 2014 We study the effect of the Basset history force on the dynamics of small particles transported in homogeneous and isotropic turbulence and show that this term, often neglected in previous numerical studies, reduces the small-scale clustering typical of ...
Brandt, Luca +4 more
core +2 more sources
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
FEBS Letters, EarlyView.We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee +3 more
wiley +1 more source
, 1955 In the most general sense, an accelerator is any device designed to give kinetic energy to ions or electrons. According to this definition the earliest cathode ray and canal ray tubes, made before the turn of the century were accelerators, the same principle is used in the x-ray tube, the cathode ray oscilloscope, the mass spectrograph, the electron ...
openaire +4 more sources
Active Galactic Nuclei as Potential Sources of Ultra-High Energy Cosmic Rays
Universe, 2022 Active Galactic Nuclei (AGNs) and their relativistic jets belong to the most promising class of ultra-high-energy cosmic ray (UHECR) accelerators. This compact review summarises basic experimental findings by recent instruments, and discusses possible ...
Frank M. Rieger
doaj +1 more source
Non-thermal processes in colliding-wind massive binaries: the contribution of Simbol-X to a multiwavelength investigation [PDF]
, 2009 Several colliding-wind massive binaries are known to be non-thermal emitters in the radio domain. This constitutes strong evidence for the fact that an efficient particle acceleration process is at work in these objects.
Giusi Micela +9 more
core +2 more sources
Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
wiley +1 more source
NukleonikaThe authors present the first observation of the production of 99Mo using a direct electron beam obtained from an electron linear accelerator in the 10–20 MeV energy region.
Zawistowski Tobiasz +7 more
doaj +1 more source
Particle Acceleration by Magnetic Reconnection
, 2015 Observational data require a rich variety of mechanisms to accelerate fast particles in astrophysical environments operating under different conditions.
Kowal, Grzegorz +1 more
core +1 more source