| DVIS | digital vascular imaging system |
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| ECR-SCSI | European Committee for Recommendation-Standard on Computer Aspects of Diagnostic Imaging |
| EPID | electronic portal imaging device |
| EPI/STAR | echo planar imaging with signal targeting and alternating radiofrequency |
| EPSI | echo planar spectroscopic imaging |
| pulsed-field gel electrophoresis | Gel electrophoresis in which, after electrophoretic migration has begun, the current is briefly stopped and reapplied in a different orientation; allows for the purification of long DNA molecules. Synonym: pulsed-field gel electrophoresis. (05 Mar 2000) |
|---|---|
| pulse field electrophoresis | <investigation> A method used for high resolution electrophoretic separation of very large (megabase) fragments of DNA. Electric fields 100 |
| pulse-field gel electrophoresis | Gel electrophoresis in which, after electrophoretic migration has begun, the current is briefly stopped and reapplied in a different orientation; allows for the purification of long DNA molecules. Synonym: pulsed-field gel electrophoresis. (05 Mar 2000) |
| nerve field | The regional distribution of nerve terminals. (05 Mar 2000) |
| depth of field | <microscopy> The depth or thickness of the object space that is simultaneously in acceptable focus. The distance between the closest and farthest objects in focus within a scene as viewed by a lens at a particular focus and with given settings. The depth of field varies with the focal length of the lens and its f-stop setting or numerical aperture, and the wavelength of light. Depth of fields only a small fraction of a micrometre can be achieved at 546 nm with microscope lenses of N.A. Greater than 0.9. (05 Aug 1998) |
| image field | <microscopy> Any field showing a focused image. There are a number of such fields in the complete microscopical system. The term may also denote the field of view, or the image field at the focal plane of the camera, generally the field where the final image is formed. (05 Aug 1998) |
| individuation field | The field within which an organiser can bring about the rearrangement of primordial tissues in such a manner that a complete embryo is formed. (05 Mar 2000) |
| object field | <microscopy> A position lying in the front focal plane of the objective. (05 Aug 1998) |
| electric field | <radiobiology> A property of a patch of space which causes the acceleration of electric charges located at that patch of space. The acceleration is given by a = qE/m, where q is the charge, E the electric field vector, and m the mass of the particle. Electric fields are generated by the presence of charges and/or the time variation of magnetic fields (09 Oct 1997) |
| electrophoresis, gel, pulsed-field | Electrophoresis in which the direction of the electric field is changed periodically. This technique is similar to other electrophoretic methods normally used to separate double-stranded DNA molecules ranging in size up to tens of thousands of base-pairs. However, by alternating the electric field direction one is able to separate DNA molecules up to several million base-pairs in length. (12 Dec 1998) |
| electrostatic field | <radiobiology> The region surrounding an electric charge in which another charge experiences a force. (16 Dec 1997) |
| toroidal field coils | <radiobiology> Coils in a toroidal system, typically wound around the torus in a solenoid-like arrangement, used to generate the toroidal magnetic field. Each turn completely surrounds the plasma. (09 Oct 1997) |
| track and field | Sports performed on a track, field, or arena and including running events and other competitions, such as the pole vault, shot put, etc. (12 Dec 1998) |
| unit of magnetic field intensity | See: gauss, tesla. (05 Mar 2000) |
| field | <radiobiology> In physics, any macroscopic quantity which exists (and typically varies) throughout a region of space. Standard examples include Electric and Magnetic fields, velocity flow fields, gravitational fields, etc. (09 Oct 1997) |