| ETA | electron transfer agent; endotracheal airways; ethionamide |
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| ETFB | electron transfer flavoprotein, beta polypeptide |
| FTP | file transfer protocol |
| GIFT | gamete intrafallopian transfer; granulocyte immunofluorescence test |
| GTA | gene transfer agent; Glanzmann thrombasthenia; glycerol teichoic acid |
| fluorescence energy transfer | <technique> Transfer of energy from one fluorochrome to another. The emission wavelength of the fluorochrome excited by the incident light must approximately match the excitation wavelength of the second fluorochrome. If light at the second emission wavelength is detected, it implies that the two fluorochromes were physically within a few nanometres. Used as a technique to probe protein or cell interactions. (25 Jun 1999) |
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| Fourier transfer | A mathematical technique to express a time-varying function or signal into components at different frequencies, giving the phase and amplitude of each; used in computed tomography and magnetic resonance image reconstruction transformation. (05 Mar 2000) |
| linear energy transfer | <radiobiology> Average amount of energy lost per unit of particle track length and expressed in keV um-1. Acronym: LET (16 Dec 1997) |