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Optical Imaging
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D061848 |
[The use of light interaction (scattering, absorption, and fluorescence) with biological tissue to obtain morphologically based information. It includes measuring inherent tissue optical properties such as scattering, absorption, and autofluorescence; or optical properties of exogenous targeted fluorescent molecular probes such as those used in optical MOLECULAR IMAGING, or nontargeted optical CONTRAST AGENTS.
] |
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Optical Phenomena
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D055620 |
[LIGHT, its processes and properties, and the characteristics of materials interacting with it.
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Optical Restriction Mapping
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D056972 |
[A technique to generate restriction maps from single large DNA molecules by spreading the DNA onto a glass surface, digesting with DNA RESTRICTION ENZYMES, staining with FLUORESCENT DYES, and visualizing the DNA cleavage sites by FLUORESCENCE MICROSCOPY.
] |
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Optical Rotation
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D009904 |
[The rotation of linearly polarized light as it passes through various media.
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Optical Rotatory Dispersion
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D009905 |
[The method of measuring the dispersion of an optically active molecule to determine the relative magnitude of right- or left-handed components and sometimes structural features of the molecule.
] |
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Optical Storage Devices
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D016249 |
[A computer disk read by a laser beam, containing data prerecorded by a vendor. The buyer cannot enter or modify data in any way but the advantages lie in the speed of accessibility, relative immunity to damage, and relatively low cost of purchase.
] |
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Optical Tweezers
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D052898 |
[A technique that uses LASERS to trap, image, and manipulate small objects (biomolecules, supramolecular assembles, DENDRIMERS) in three dimensional space. (From Glossary of Biotechnology and Nanobiotechnology Terms, 4th ed.)
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Optically Stimulated Luminescence Dosimetry
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D062791 |
[The use of a radiation monitoring device composed of material which emits light after being illuminated. The amount of light emitted is proportional to the amount of IONIZING RADIATION to which the material has been previously exposed.
] |
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Optics and Photonics
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D055095 |
[A specialized field of physics and engineering involved in studying the behavior and properties of light and the technology of analyzing, generating, transmitting, and manipulating ELECTROMAGNETIC RADIATION in the visible, infrared, and ultraviolet range.
] |
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Optimism
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D000067656 |
[Mental attitude that interprets life events as generally being positive.
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Optogenetics
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D062308 |
[The combination of genetic and optical methods in controlling specific events with temporal precision in targeted cells of a functioning intact biological system.
] |
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Optometrists
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D000072162 |
[Qualified professionals trained in primary eye and vision care, including measurement of visual abilities, diagnosing disorders of the visual system and provision of treatment such as prescriptions for correction of visual defects with lenses or glasses and vision therapy.
] |
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Optometry
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D009907 |
[The professional practice of primary eye and vision care that includes the measurement of visual refractive power and the correction of visual defects with lenses or glasses.
] |
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Opuntia
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D029747 |
[A plant genus of the family CACTACEAE. Species with cylindrical joints are called Cholla; flat jointed ones are Prickly-pear.
] |
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Oral Fistula
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D016155 |
[An abnormal passage within the mouth communicating between two or more anatomical structures.
] |
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Oral Health
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D009909 |
[The optimal state of the mouth and normal functioning of the organs of the mouth without evidence of disease.
] |
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Oral Hemorrhage
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D006472 |
[Bleeding from the blood vessels of the mouth, which may occur as a result of injuries to the mouth, accidents in oral surgery, or diseases of the gums.
] |
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Oral Hygiene
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D009910 |
[The practice of personal hygiene of the mouth. It includes the maintenance of oral cleanliness, tissue tone, and general preservation of oral health.
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Oral Hygiene Index
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D009911 |
[A combination of the debris index and the dental calculus index to determine the status of oral hygiene.
] |
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Oral Manifestations
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D009912 |
[Disorders of the mouth attendant upon non-oral disease or injury.
] |
