| RSE | rapid spin-echo |
|---|---|
| SE | saline enema; sanitary engineering; side effect; smoke exposure; solid extract; sphenoethmoidal; spi... |
| SECSY | spin echo correlated spectroscopy |
| FEER | field echo with even echo rephasing |
| EPI/STAR | echo planar imaging with signal targeting and alternating radiofrequency |
| spin labels | Molecules which contain an atom or a group of atoms exhibiting an unpaired electron spin that can be detected by electron spin resonance spectroscopy and can be bonded to another molecule. (12 Dec 1998) |
|---|---|
| spin-lattice relaxation | In nuclear magnetic resonance, the return of the magnetic dipoles of the hydrogen nuclei (magnetization vector) to equilibrium parallel to the magnetic field, after they have been flipped 90 |
| spin-polarized fusion | <radiobiology> A method to enhance nuclear fusion reaction rates in some fusion fuels by polarizing the nuclear spins. (09 Oct 1997) |
| spin trapping | A technique for detecting short-lived reactive free radicals in biological systems by providing a nitrone or nitrose compound for an addition reaction to occur which produces an electron spin resonance spectroscopy-detectable aminoxyl radical. In spin trapping, the compound trapping the radical is called the spin trap and the addition product of the radical is identified as the spin adduct. (free rad res comm 1990;9(3-6):163) (12 Dec 1998) |
| electron spin resonance | <physics> A spectrometric method, based on measurement of electron spins and magnetic moments, for detecting and estimating free radicals in reactions and in biological systems. Synonym: electron paramagnetic resonance. (05 Mar 2000) |
| electron spin resonance spectroscopy | <radiology> A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. electron nuclear double resonance (endor) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications. (12 Dec 1998) |
| Brownian motion | <chemistry, physics> Random motion of small objects as a result of intermolecular collisions. First described by the 19th Century microscopist, Brown. (18 Nov 1997) |
| range of motion | The range through which a joint can be moved, usually its range of flexion and extension. Due to an injury, the knee may for example lack 10 degrees of full extension. (12 Dec 1998) |
| range of motion, articular | Range through which a joint can be extended and flexed. This is frequently assessed following surgery of the joint. (12 Dec 1998) |
| motion | 1. The act, process, or state of changing place or position; movement; the passing of a body from one place or position to another, whether voluntary or involuntary; opposed to rest. "Speaking or mute, all comeliness and grace attends thee, and each word, each motion, forms." (Milton) 2. Power of, or capacity for, motion. "Devoid of sense and motion." (Milton) 3. Direction of movement; course; tendency; as, the motion of the planets is from west to east. "In our proper motion we ascend." (Milton) 4. Change in the relative position of the parts of anything; action of a machine with respect to the relative movement of its parts. "This is the great wheel to which the clock owes its motion." (Dr. H. More) 5. Movement of the mind, desires, or passions; mental act, or impulse to any action; internal activity. "Let a good man obey every good motion rising in his heart, knowing that every such motion proceeds from God." (South) 6. A proposal or suggestion looking to action or progress; especially, a formal proposal made in a deliberative assembly; as, a motion to adjourn. "Yes, I agree, and thank you for your motion." (Shak) 7. An application made to a court or judge orally in open court. Its object is to obtain an order or rule directing some act to be done in favor of the applicant. 8. Change of pitch in successive sounds, whether in the same part or in groups of parts. "The independent motions of different parts sounding together constitute counterpoint." (Grove) Conjunct motion is that by single degrees of the scale. Contrary motion is that when parts move in opposite directions. Disjunct motion is motion by skips. Oblique motion is that when one part is stationary while another moves. Similar or direct motion is that when parts move in the same direction. 9. A puppet show or puppet. "What motion's this? the model of Nineveh?" (Beau. & Fl) Motion, in mechanics, may be simple or compound. Simple motions are: (a) straight translation, which, if of indefinite duration, must be reciprocating. (b) Simple rotation, which may be either continuous or reciprocating, and when reciprocating is called oscillating. (c) Helical, which, if of indefinite duration, must be reciprocating. Compound motion consists of combinations of any of the simple motions. Center of motion, Harmonic motion, etc. See Center, Harmonic, etc. Motion block, an incessant motion conceived to be attainable by a machine supplying its own motive forces independently of any action from without. Synonym: See Movement. Origin: F, fr. L. Motio, fr. Movere, motum, to move. See Move. Source: Websters Dictionary (01 Mar 1998) |
| motion perception | The real or apparent movement of objects through the visual field. (12 Dec 1998) |
| motion pictures | The art, technique, or business of producing motion pictures for entertainment, propaganda, or instruction. (12 Dec 1998) |
| motion, range of | The range through which a joint can be moved, usually its range of flexion and extension. Due to an injury, the knee may for example lack 10 degrees of full extension. (12 Dec 1998) |
| motion sickness | <neurology> A disturbance of the inner ear that is caused by repeated motion (for example sea sickness, car sickness). Common symptoms include nausea, vomiting and vertigo. (27 Sep 1997) |
| motion therapy, continuous passive | Movement of a body part initiated and maintained by a mechanical or electrical device to restore normal range of motion to joints, muscles, or tendons after surgery, prosthesis implantation, contracture flexion, or long immobilization. (12 Dec 1998) |