quantal


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quantal

(kwŏn′tl)
adj.
Biology Of or designating an all-or-none response or effect: a quantal reaction.

quan′tal·ly adv.

quantal

(kwant′ăl) [L. quantum, how much + -al]
1. Pert. to quantum theory.
Pert. to a response to a stimulus marked by the presence or absence of a specific reaction, e.g., an all or none response.

quantal

pertaining to specific quantities; used usually in reference to drugs and their dose rates.

quantal drug-receptor relationship
the variation in effect observed with increasing doses of a drug.
References in periodicals archive ?
The quantal nature of neurotransmitter release is clearly demonstrated at amphibian NMJ, where miniature end-plate potentials (mepps) represent unit postsynaptic responses to neurotransmitter (3) released from single vesicles.
Thus, what are being described by the equations of the quantal mathematics are purely structures in the mind of the observer.
They also had a highly placed larynx contributing to disordered symmetry between swallowing and breathing leading to evolution of linguistics characteristic of Dravidian language lacking quantal vowels.
We also show how to reduce the number of defender strategies before addressing the most important innovation in PROTECT: its use of the quantal response model.
Results--Via quantal analysis, mean sevoflurane MAC in thick-billed parrots determined with mechanical stimulation was 2.
Using the term quantal frame to mean a quantale whose underlying sup-lattice is a locale [Resende, 2007], we can state it as:
He covers the measurement process, bioaccumulation, lethal and other quantal responses to stress, statistical tests for detecting chronic lethal and sub-lethal stress, population and metapopulation effects, and community effects.
A bayesian sequential procedure for quantal response in the context of adaptive mental testing.
Semip&rametric and Nonparametric Estimation of Quantal Response Models," in Handbook of Statistics, Vol.
These can be said to be wave-based, quantal transformations.
1974), "A Quantal Analysis of the Synaptic Depression Underlying Habituation of the Gill Withdrawal Reflex in Aplysia", Proceedings of the National Aacademy of Sciences, USA, 71: 5004-08.
Another explanation is the modulation of neuromuscular transmission, due to lowered number of vesicles fused with the presynaptic membrane and quantal size of acetylcholin (ACh) per vesicle (Reid et al.