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What happens during Beta- Decay?
Neutron decays into a proton, electron and an antineutrino. Z up1, N down 1, A is same.
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What happens during Beta + Decay?
- A proton decays into a neutron, a positron, and a neutrino.
- Z down 1, N up 1, A is same.
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What happens during Alpha Decay?
An alpha particle (helium nucleus 2n+2p) is emitted. Z down 2, N down 2, A down 4.
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Describe Electron Capture.
- Reverse of Beta- Decay. Electron gets too close to nucleus and is combined with a proton to form a neutron and a neutrino.
- Z up 1, N down 1, A is same.
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Two or more chemicals with the same chemical formula, but having different chemical properties are called?
Isomers
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What is the equivalent field size equation?
2(L x W)/ L+W
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The reproduction of infectious organisms is termed...
Colonization
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Give an example of a fomite.
Door Knob, Needle Stick, etc.
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The time interval between exposure and the appearance of the first symptom is termed...
Incubation period
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Nosocomial Infections are
a hospital or community acquired infection
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What are subclinical infections?
Occur when the infection is present, but there are no signs or symptoms.
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The stage of recovery from an illness is called
Covalescence
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A collective term used to describe related signs and symptoms is called
Disease
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Normal Blood Pressure Readings should be
110-140mm Hg / 60-80mm Hg
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Systolic Pressure is
the first sound heard, pressure in blood vessels during contraction of the heart
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Diastolic Pressure is
the pressure during the relaxation phase of the heart after contraction
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Apoptosis is
programmed cell death
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Low LET particles
X-Rays, Gamma Rays, higher chance of an indirect hit occuring
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High LET particles
alpha particles, distances are closer together, there is a high probability that a direct hit will take place.
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A direct hit occurs when
A particle hits DNA causing a point mutation
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