| beta particle |
A negatively charged particle, emitted by certain radioactive materials. Beta particles have the same properties (mass and charge) as electrons. They can travel in the air for a distance of a few feet and can pass through a sheet of paper. They can be shielded by aluminum foil or glass.
출처: www.nsc.org/ehc/guidebks/wippglos.htm
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|---|---|
| beta particle |
Another type of particle, a negatively charged electron--emitted in certain types of radioactive decay. It can be stopped by a thin piece of aluminum or by traveling a short distance in the air.
출처: www.pbs.org/wgbh/pages/frontline/shows/reaction/et...
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| Bethesda System |
Classifications and terminology used by laboratories and doctors to describe the results of Pap tests.
출처: www.pbs.org/secondopinion/episodes/cervicalcancera...
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| Betz cells |
(noun) a form of giant pyramidal cell in the cortical motor area of the brain. The axons of these cells are in the pyramidal tract
출처: www.orgsites.com/fl/adjuvantdisease/_pgg9.php3
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| beta-adrenergic receptor |
a specialized molecular structure on the surface membrane of a neuron that selectively receives the neurotransmitter norepinephrine. Reception of this neurotransmitter causes changes in the neuron that increase its likelihood of "firing" or sending its own signal to other neurons. The activities of norepinephrine affect that part of the nervous system involved in the control of some involuntary body functions, such as blood pressure regulation, etc. (sympathetic nervous system).
출처: www.dbs-stn.org/glossary.asp
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