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Scientists create first laboratory generation of high-energy shock waves that accelerate astrophysical particles

Throughout the universe, supersonic shock waves propel cosmic rays and supernova particles to velocities near the speed of light. The most high-energy of these astrophysical shocks occur too far outside the solar system to be studied in detail and have long puzzled astrophysicists. Shocks closer to Earth can be detected by spacecraft, but they fly by too quickly to probe a wave’s formation. (more…)

Dodging dots helps explain brain circuitry

By Guest PostSeptember 30, 2014Healthastrophysical particles, brown university, carlos aizenman, derek schaeffer, detmar meurers, diamond mine, eastern russia, general model, guglielmo tino, inhibitory neurons, kaiserschnitt risiko, karin berendes, largest excavated hole, magnetosonic mach number, mirny mine, neuroscientists, omega ep, open pit, schlechte note, schulbuch, supersonic shock waves, tadpoles

In a new study, Brown University neuroscientists looked cell-by-cell at the brain circuitry that tadpoles, and possibly other animals, use to avoid collisions. The study produced a model of how individual inhibitory and excitatory neurons can work together to control a simple behavior.

PROVIDENCE, R.I. [Brown University] — A neuroscience study provides new insight into the primal brain circuits involved in collision avoidance, and perhaps a more general model of how neurons can participate in networks to process information and act on it. (more…)

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Scientists create first laboratory generation of high-energy shock waves that accelerate astrophysical particles

Dodging dots helps explain brain circuitry