| ICG | impedance cardiogram; impedance cardiography |
|---|---|
| IPG | Impedance Plethysmo-Graphy |
| BIA | biolectric impedance analysis; bioimmunoassay |
| dZ | impedance change |
| EIT | electrical impedance tomography; erythroid iron turnover |
| T-jump | temperature jump |
|---|---|
| CMJ | counter movement jump |
| SJ | squat jump |
| BIA | Bio-electrical impedance analysis |
| BIA | Bioelectric Impedance Analysis |
| jump | 1. To pass by a spring or leap; to overleap; as, to jump a stream. 2. To cause to jump; as, he jumped his horse across the ditch. 3. To expose to danger; to risk; to hazard. "To jump a body with a dangerous physic." (Shak) 4. To join by a butt weld. To thicken or enlarge by endwise blows; to upset. 5. To bore with a jumper. To jump a claim, to enter upon and take possession of land to which another has acquired a claim by prior entry and occupation. See Claim. To jump one's bail, to abscond while at liberty under bail bonds. 1. To spring free from the ground by the muscular action of the feet and legs; to project one's self through the air; to spring; to bound; to leap. "Not the worst of the three but jumps twelve foot and a half by the square." (Shak) 2. To move as if by jumping; to bounce; to jolt. "The jumping chariots." "A flock of geese jump down together." (Dryden) 3. To coincide; to agree; to accord; to tally; followed by with. "It jumps with my humor." To jump at, to spring to; hence, fig, to accept suddenly or eagerly; as, a fish jumps at a bait; to jump at a chance. Origin: Akin to OD. Gumpen, dial. G. Gumpen, jumpen. 1. The act of jumping; a leap; a spring; a bound. "To advance by jumps." 2. An effort; an attempt; a venture. "Our fortune lies Upon thisjump." (Shak) 3. The space traversed by a leap. 4. <chemical> A dislocation in a stratum; a fault. 5. An abrupt interruption of level in a piece of brickwork or masonry. From the jump, from the start or beginning. Jump joint. A butt joint. A flush joint, as of plank in carvel-built vessels. Jump seat. A movable carriage seat. A carriage constructed with a seat which may be shifted so as to make room for second or extra seat. Also used adjectively; as, a jump-seat wagon. Source: Websters Dictionary (01 Mar 1998) |
|---|---|
| jump flap | A distant flap transferred in stages via an intermediate carrier; e.g., an abdominal flap is attached to the wrist, then at a later stage the wrist is brought to the face. (05 Mar 2000) |
| acoustic impedance | The resistance that a material offers to the passage of a sound wave (colloquial); a property of a medium computed as the product of density and sound propagation speed (characteristic acoustic impedance). Discontinuities in acoustic impedance are responsible for the echoes on which ultrasound imaging is based. Unit: the rayl. (05 Mar 2000) |
| acoustic impedance tests | Objective tests of middle ear function based on the difficulty (impedance) or ease (admittance) of sound flow through the middle ear. These include static impedance and dynamic impedance (i.e., tympanometry and impedance tests in conjunction with intra-aural muscle reflex elicitation). This term is used also for various components of impedance and admittance (e.g., compliance, conductance, reactance, resistance, susceptance). (12 Dec 1998) |
| cardiography, impedance | A type of impedance plethysmography in which bioelectrical impedance is measured between electrodes positioned around the neck and around the lower thorax. It is used principally to calculate stroke volume and cardiac volume, but it is also related to myocardial contractility, thoracic fluid content, and circulation to the extremities. (12 Dec 1998) |
| plethysmography, impedance | Recording changes in electrical impedance between electrodes placed on opposite sides of a part of the body, as a measure of volume changes in the path of the current. (12 Dec 1998) |
| impedance | 1. Total opposition to flow. When flow is steady, impedance is simply the resistance, e.g., the driving pressure per unit flow; when flow is changing, impedance also includes the factors that oppose changes in flow. Thus, deviations of impedance, from simple ohmic resistance because of the effects of capacitance and inductance, become more important in alternating current as the frequency of oscillations increases. In fluid analogies (e.g., pulsatile flow of blood, to-and-fro flow of respiratory gas), impedance depends not only on viscous resistance but also upon compressibility, compliance, inertance, and the frequency of imposed oscillations. 2. Resistance of an acoustic system to being set in motion. (05 Mar 2000) |
| impedance angle | A term expressing the ratio of electric resistance to electric capacitance (ohms to microfarads) in the tissues of the body or any other substance. (05 Mar 2000) |
| impedance method | A method for localizing brain structures by measuring impedance of electric current. (05 Mar 2000) |
| electric impedance | The opposition to the flow of an alternating current, which is the vector sum of ohmic resistance plus additional resistance, if any, due to induction, to capacity, or to both. (12 Dec 1998) |
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