gating mechanism

gat·ing mech·a·nism

1. occurrence of the maximum refractory period among cardiac conducting cells approximately 2-mm proximal to the terminal Purkinje fibers in the ventricular muscle, beyond which the refractory period is shortened through a sequence of Purkinje cells, transitional cells, and muscular cells; gating mechanism may be a cause of ventricular aberration, bidirectional tachycardia, and concealed extrasystoles;
2. a mechanism by which painful impulses may be blocked from entering the spinal cord. Compare: gate-control theory.

gat·ing mech·an·ism

(gāt'ing mek'ă-nizm)
1. Occurrence of the maximum refractory period among cardiac conducting cells approximately 2 mm proximal to the terminal Purkinje fibers in the ventricular muscle; may be a cause of ventricular aberration, bidirectional tachycardia, and concealed extrasystoles.
2. A mechanism by which painful impulses may be blocked from entering the spinal cord.
Compare: gate-control theory
References in periodicals archive ?
On the flip side, as a body cools down, the dynamic gating mechanism works in reverse to trap in heat.
Comparing the open structure to that of the resting state structure (15) led to the proposed gating mechanism of the acetylcholine receptor.
We finally identified a single amino acid of loop D, Tyr216, as a key residue in the gating mechanism, possibly involving phosphorylation (Bulow et al., 2015).
Melzack and Wall proposed that there was a "gating mechanism" in the dorsal horns of the spinal cord that allowed the perception of pain to be modified.
Meanwhile, a toggle-less gating mechanism reduces the mechanical impact on the load cell and suppresses the bucket gating noise.
The capillary gating mechanism described above was applied to precisely control the fluid sample.
Working on the theory that the spinal cord has a gating mechanism through which both pain and sensory signals reach the brain, the ShotBlocker's chemical- and drugfree sensation closes the "gate" to block the flow of pain signals to the brain.
This seemingly confusing series of signal relays is actually part of a sophisticated gating mechanism, as evidenced by a short, 20-millisecond delay between when the LRIPs are initially activated, and when their inhibitory signals arrive in the hippocampus.
A gating mechanism which was first designed in the seventies was dusted down and given a new lease of Life.
A preview of titles includes: regulation of alternative splicing through coupling with transcription and chromatin structure; nuclear-ADP-Ribosylation and its role in chromatic plasticity, cell differentiation, and epigenetics; the biology of proteostasis in aging and disease; PIWI-interacting RNA: its biogenesis and functions; structure, dynamics, assembly, and evolution of protein complexes; gating mechanisms of voltage-gated proton channels; form follows function: the importance of endoplasmic reticulum shape; cellulose degradation by polysaccharide monooxygenases.
Besides, we have evaluated our HEON NoC without the power gating mechanisms and the result shows that our power management scheme can save energy by 26.8 %.
The new approaches are particularly attractive because the differences in assembly and gating mechanisms between human and TB proteasomes are more significant than the differences in the enzyme active sites that have been primary targets for drug development.