Category: N
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Near-infrared spectroscopy
A method of diagnosis used to assess the level of oxygen saturation in tissues.
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Naturopathic physicians
Medical professionals who specialize in the management of ailments through a diverse range of natural approaches and remedies derived from plants.
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Nasal scraping
Clinical investigation necessitates the acquisition of pathological specimens by gently scraping the inner lining of the nasal cavity using a specialized medical instrument.
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Nuclear radiation
The emission of neutrons, gamma particles, and other particles from an atomic nucleus as a consequence of nuclear fission or nuclear fusion.
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Nuclear particle
A constituent of the atomic nucleus, which can be either a proton or a neutron. It is also commonly referred to as a nucleon. Additionally, a particle discharged from an atomic nucleus, such as an alpha particle or a beta particle.
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Nuclear emulsion
A specialized photographic emulsion crafted to detect and record individual pathways of ionizing particles, such as those employed in scan recording.
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N shell
The fourth electron shell encircling the nucleus of an atom, housing electrons distinguished by the principal quantum number 4.
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North pole
The extremity of a magnet from which magnetic lines of force emanate.
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Nonvisualization
The incapacity to render an organ discernible on radiographic film or to capture the desired level of image clarity and sharpness.
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Nonscreen holder
An x-ray film holder devoid of screens, specifically designed for nonscreen radiographic procedures.