physical half-life

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physical half-life

See half-life.

half-life,

n the time in which a radioactive substance will lose half of its activity through disintegration.

half-life, biologic,

n the time in which a living tissue, organ, or individual eliminates, through biologic processes, half of a given amount of a substance that has been introduced into it.

half-life, effective,

n the half-life of a radioactive isotope in a biologic organism, resulting from the combination of radioactive decay and biologic elimination.

half-life, physical,

n the average time required for the decay of half the atoms in a given amount of a radioactive substance.

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half-life iodine-123 xenon-133			Clinical evidence Because rubidium has a very short physical half-life of 75 seconds, the patient must undergo pharmacological stress, and the rubidium must be injected at peak stress through an infusion system from the tracer's generator. Positron Corporation Comments on Reimbursement for Myocardial PET ... by Business Wire			physeal Physeter macrocephalus physi(o)- physi- physiatrics physiatrist physiatry physic physic ball physical physical abuse physical activity physical aging physical allergy physical assessment physical chemistry physical deconditioning physical dependence physical diagnosis physical education physical examination physical field physical fitness physical fitness 1 physical fitness 2 physical half-life physical inactivity physical injury severity physical level Physical manipulation physical maturation: female physical maturation: male physical medicine physical mixture physical rehabilitation physical restraint physical science physical sign Physical status classification physical therapist physical therapy physical therapy assistant physically helpless physician physician assistant Physician Assisted Suicide physician autonomy Physician Bashing Physician Expert Witness physician extender Physician Glut			physical fitness 1 physical fitness 2 Physical Fitness and Readiness Facility Physical Fitness Assesment Physical Fitness Diagnostic Physical Fitness Facility Physical Fitness for Special Populations Physical Fitness Incentive Pay Physical Fitness Inventory Test Physical Fitness Program Physical fitness test Physical Fitness Test Battery Physical Fitness Uniform physical force physical forecasting physical format Physical Foundations of Engineering Physical Geographic Belts Physical Geographic Subzones Physical Geographic Zones physical geography physical geography physical geology Physical gill Physical gill Physical gill Physical gill physical half-life physical handicap physical handicap Physical Handicapped and Able Bodied Physical Hazard Physical Hazards Physical Header Physical Health & Social Education Physical Health Assessment Physical Health Domain Index Physical History physical hurt Physical Immortalism Physical Immortalism Physical Immortalism Physical Immortalism physical inactivity Physical indicators physical injury severity Physical Input-Output Tables Physical Input/Output Control System Physical Input/Output Control System physical insults physical insults physical insults physical insults Physical Integration Filter Physical Intellectual Language Emotional Social Physical Intellectual Property Division Physical interaction Physical interaction

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