Epidemiology MeSH Terms
MeSH Terms.
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Tandem Mass SpectrometryA mass spectrometry technique using two (MS/MS) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in GC-MS/MS, GAS CHROMATOGRAPHY-MASS SPECTROMETRY is involved in separating relatively small compounds by GAS CHROMATOGRAPHY prior to injecting them into an ionization chamber for the mass selection. | |
Teaching MaterialsInstructional materials used in teaching. | |
Technology, RadiologicThe application of scientific knowledge or technology to the field of radiology. The applications center mostly around x-ray or radioisotopes for diagnostic and therapeutic purposes but the technological applications of any radiation or radiologic procedure is within the scope of radiologic technology. | |
TelecommunicationsTransmission of information over distances via electronic means. | |
TelefacsimileA telecommunication system combining the transmission of a document scanned at a transmitter, its reconstruction at a receiving station, and its duplication there by a copier. | |
TelephoneAn instrument for reproducing sounds especially articulate speech at a distance. (Webster, 3rd ed) | |
TeleradiologyThe electronic transmission of radiological images from one location to another for the purposes of interpretation and/or consultation. Users in different locations may simultaneously view images with greater access to secondary consultations and improved continuing education. (From American College of Radiology, ACR Standard for Teleradiology, 1994, p3) | |
Terahertz SpectroscopySpectrum analysis of absorbed or emitted TERAHERTZ RADIATION. | |
Terminology as TopicThe terms, expressions, designations, or symbols used in a particular science, discipline, or specialized subject area. | |