| D011830 |
Radiation Effects |
The effects of ionizing and nonionizing radiation upon living organisms, organs and tissues, and their constituents, and upon physiologic processes. It includes the effect of irradiation on food, drugs, and chemicals. |
Effects, Radiation,Effect, Radiation,Radiation Effect |
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| D001921 |
Brain |
The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. |
Encephalon |
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| D001923 |
Brain Chemistry |
Changes in the amounts of various chemicals (neurotransmitters, receptors, enzymes, and other metabolites) specific to the area of the central nervous system contained within the head. These are monitored over time, during sensory stimulation, or under different disease states. |
Chemistry, Brain,Brain Chemistries,Chemistries, Brain |
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| D002250 |
Carbon Radioisotopes |
Unstable isotopes of carbon that decay or disintegrate emitting radiation. C atoms with atomic weights 10, 11, and 14-16 are radioactive carbon isotopes. |
Radioisotopes, Carbon |
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| D002395 |
Catecholamines |
A general class of ortho-dihydroxyphenylalkylamines derived from TYROSINE. |
Catecholamine,Sympathin,Sympathins |
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| D003903 |
Deuterium |
The stable isotope of hydrogen. It has one neutron and one proton in the nucleus. |
Deuterons,Hydrogen-2,Hydrogen 2 |
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| D005260 |
Female |
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Females |
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| D006207 |
Half-Life |
The time it takes for a substance (drug, radioactive nuclide, or other) to lose half of its pharmacologic, physiologic, or radiologic activity. |
Halflife,Half Life,Half-Lifes,Halflifes |
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| D000818 |
Animals |
Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. |
Animal,Metazoa,Animalia |
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| D013997 |
Time Factors |
Elements of limited time intervals, contributing to particular results or situations. |
Time Series,Factor, Time,Time Factor |
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