negative phase


Also found in: Medical.

negative phase

[′neg·əd·iv ′fāz]
(immunology)
The temporary quantitative reduction of serum antibodies immediately following a second inoculation of antigen.
References in periodicals archive ?
The measurement of MMN in our research was obtained from the average brain wave induced by the deviated stimulus minus the average brain wave induced by the standard stimulus, located in the 100-250 ms negative phase wave after the appearance of the beginning auditory deviant stimuli, which was different from highly repetitive standard sound stimulation.
Like figure 8 that shows two nearly hemispherical lobes, figure 10 shows two large nearly hemispherical lobes, one of positive and one of negative phase, each with an embedded small nearly hemispherical lobe of opposite phase near the origin, all symmetric about axis z.
At this time of year, the positive phase of the NAO is associated with milder- and wetter-than-average conditions, whilst the negative phase is associated with colder- and drierthan-average conditions.
Chen, "Direct observation of negative phase velocity and positive group velocity in time domain for composite right/left-handed transmission lines," Journal of Applied Physics, Vol.
The AO has generally been in a negative phase since summer 2009.
It's similar to the La Ni[+ or -]a-El Ni[+ or -]o pattern, but instead of lasting 12 to 18 months, the PDO can stay in a positive or negative phase for 10 to 20 years.
Faryad, "Paraboloidal reflector in chiral medium supporting simultaneously positive phase velocity and negative phase velocity," Progress In Electromagnetics Research, Vol.
Syria's official Al-Baath newspaper said in a front-page headline on Sunday: "Three positive, honest, friendly hours C* break the ice and end the negative phase of the past.
Many other researchers, including Burgdorfer himself in 1951, "found no evidence of a negative phase or complex life cycle.
burnettii were positive with a phase 2 immunoglobulin M (IgM) titer of 256 (negative <1:64), phase 2 IgG titer of 128 (negative <16), and negative phase 1 serologic results.
Nevertheless, one can recognize the increase in geometric phase for [DELTA][phi] [member of] [0, [pi]/2] due to the positively oriented surface followed by a decrease due to appearance of a counterclockwise traversed loop on the sphere yielding a negative phase contribution.