Results 81 to 90 of about 163,915 (242)

New results from H.E.S.S. observations of galaxy clusters

, 2009
Clusters of galaxies are believed to contain a significant population of cosmic rays. From the radio and probably hard X-ray bands it is known that clusters are the spatially most extended emitters of non-thermal radiation in the Universe.
DALIBOR NEDBAL, JAMES A. HINTON, OLIVIER MARTINEAU-HUYNH, Völk H. J., WILFRIED DOMAINKO   +4 more
core   +3 more sources

Strategies for Assessing Post‐Wildfire Geomorphic Resilience in Semiarid Rivers

River Research and Applications, EarlyView.
ABSTRACT We review and summarize diverse components of a catchment that can be monitored after wildfire to assess the geomorphic resilience of the river corridor in semiarid regions. We distinguish upland portions of river catchments from river corridors.
Ellen Wohl, Shayla Triantafillou, Alex Thornton‐Dunwoody, Connor Mertz, Katie Larkin, William Keenan, Steven Griffin, Dylan Davis, Lindsey Blehm   +8 more
wiley   +1 more source

Embodied, Enacted, and Multimodal: Exploring Science Teachers’ Metaphors in Authentic Classroom Contexts

Science Education, EarlyView.
ABSTRACT Over the past decades, science education research has extensively examined the role of metaphors in teaching and learning science. However, much of the existing research has focused on verbal manifestations of metaphors, thereby overlooking aspects of metaphors that may occur in non‐verbal form. This study reconceptualises metaphors as dynamic
Magdalena Kersting, Priscila Kohler, Marianne Ødegaard   +2 more
wiley   +1 more source

Superbubble Origin of Cosmic Rays

, 2012
After a hundred years of searching for the origin of cosmic rays, where and how they are made has finally become clear. Here we briefly trace that odyssey through both astronomical observations and cosmic ray measurements.Comment: 5 pages, 3 figures ...
Lingenfelter, Richard E.
core   +1 more source

Capture, Confine, Characterize: High‐Throughput Dielectrophoresis‐Based Single‐Cell Microfluidics Platform to Analyze Mammalian and Yeast Cells Using Raman Spectroscopy

Small, EarlyView.
Traditional single‐cell analysis lacks the capacity for real‐time monitoring. This study presents Microfluidic dielectrophoretic Arresting System (MiDAS), a microelectrofluidic platform using dielectrophoresis for single‐cell and droplet trapping. MiDAS immobilizes diverse samples (cells, beads, droplets) for optical imaging and Raman spectroscopy. Its
Bum‐Joon Jung, Allison Hohreiter, Runjie Chen, Dylan Cook, Linus Hansen, Sunny Taylor, Koseki J. Kobayashi‐Kirschvink, Joseph Chaiken, Supratik Guha, Anindita Basu   +9 more
wiley   +1 more source

A Cosmic Ray Acceleration Mechanism Based on Background Flow Velocity Inhomogeneities Yielding Power-law Spectra

The Astrophysical Journal
In astrophysics, one significant challenge lies in understanding the acceleration of cosmic rays, which leads to the occurrence of a power law. In this article, momentum transport generated by the combined effects of pitch-angle diffusion and background ...
J.-F. Wang, G. Qin
doaj   +1 more source

Cosmic-Ray Boosted Diffuse Supernova Neutrinos

Astronomy
The subject of boosted fluxes of dark matter or cosmic relic neutrinos via scattering on cosmic rays has received considerable attention recently. This article investigates the boosted neutrino flux from the scattering of cosmic rays and the so-far ...
Alexander Sandrock
doaj   +1 more source

Integrating simultaneous interfacial shear rheology with neutron reflectometry for structural and dynamic analysis of fluid interfacial systems

Journal of Applied Crystallography, EarlyView.
We present a new setup at the FIGARO horizontal neutron reflectometer enabling simultaneous measurement of the structural and mechanical properties of liquid interfaces, combining neutron reflectometry with interfacial shear rheology.The study of the structure and mechanical properties of complex fluid interfaces has attracted growing interest in ...
Pablo Sánchez-Puga, Javier Tajuelo, Javier Carrascosa-Tejedor, Miguel Ángel Rubio, Philipp Gutfreund, Armando Maestro   +5 more
wiley   +1 more source

Multi messenger astronomy and CTA: TeV cosmic rays and electrons

, 2012
Cosmic rays are a sample of solar, galactic and extragalactic matter. Their origin and properties are one of the most intriguing question in modern astrophysics. The most energetic events and active objects in the Universe: supernovae explosion, pulsars,
Abdo, Abdo, Ackermann, Ackermann, Adriani, Adriani, Adriani, Adriani, Aguilar, Aharonian, Aharonian, Aharonian, Aharonian, Ahlers, Ahn, Alcaraz, Alcaraz, Allen, Antoni, Antoni, Apel, Asakimori, Ave, Blasi, Boezio, Boezio, Boezio, Chang, Cirelli, Cronin, Delahaye, DuVernois, Earl, Engelmann, Erlykin, Fujita, Funk, Ginzburg, Giuliani, Gleeson, Grimani, Haino, Hareyama, Hörandel, Kamae, Kobayashi, Koyama, Maestro, Malyshev, Menn, Mirko Boezio, Müller, Nishimura, Obermeier, Piergiorgio Picozza, Ptuskin, Shaviv, Shong, Strong, Swordy, Tavani, Torii, Yoon, Zatsepin   +63 more
core   +1 more source

Absolute scaling of small‐ and wide‐angle X‐ray scattering images recorded with short duration X‐ray pulses on a large area fiber‐taper X‐ray detector

Journal of Synchrotron Radiation, EarlyView.
An X‐ray scattering setup designed to capture small‐ and wide‐angle X‐ray scattering on a single, large area detector features a partially transmissive beamstop that facilitates non‐invasive recording of X‐ray beam position and intensity during acquisition of X‐ray scattering images.
Hyun Sun Cho, Friedrich Schotte, Robert Henning, Philip A. Anfinrud   +3 more
wiley   +1 more source