(n.) Two taken together; a pair or couple; especially two lines of verse that rhyme with each other.
Example Sentences:
(1) Propranolol therapy abolished ventricular couplets in eight of twelve patients and ventricular tachycardia in four of the patients.
(2) In 78 consecutive patients with uniform ventricular ectopic complexes and without heart disease, ventricular couplets were present significantly more often when the coupling interval of ventricular ectopic complexes was variable than when it was fixed (P less than 0.04).
(3) "I saw Hutton in his prime; another time, another time," as his couplet about his cricketing hero, Sir Leonard Hutton, has it.
(4) Arrhythmias in form of supraventricular and ventricular extrasystoles including bigeminy and couplets of VES in one patient and two episodes of atrial tachycardia in another one on the day of drug injection were noticed.
(5) We examined the extracellular equilibrium status of two redox couplets normally found in plasma (lactate-pyruvate [L-P], beta-hydroxybutyrate, and acetoacetate) during acute metabolic acidosis produced by muscle exertion.
(6) Imitating the white, vaudeville television love-to-hate wrestler Gorgeous George, his forecasts bragged the precise round he was going to win, sometimes combining such box-office larks with couplets of doggerel.
(7) In 4 patients with coronary heart disease associated with arrhythmia guanfacine 1 mg per day during 10 days decreased ventricular premature contractions, couplets and abolished appearance of ventricular tachycardias.
(8) An initial preparation of rat hepatocytes containing approximately 30% couplets was enriched by centrifugal elutriation.
(9) Forty-eight recordings from 46 patients were identified which contained couplets, ventricular tachycardia or R-on-T extrasystoles.
(10) These findings demonstrate the utility of confocal line scanning microscopy for detecting rapid changes in the subcellular distribution of cytosolic Ca2+ in hepatocyte couplets, and suggest that phenylephrine-induced Ca2+ waves radiate in a basal-to-apical direction in this cell type.
(11) Our system was able to assign more cases to couplets then the NOHS-JEM (35,895 to 22,369).
(12) Efficacy of treatment determined by programmed stimulation (ventricular tachycardia no longer inducible or nonsustained) was compared with three Holter criteria of efficacy: I = 83% or more reduction of ventricular premature complexes and abolition of ventricular tachycardia; II = 50% or more reduction of ventricular premature complexes and 90% or more reduction of couplets and abolition of ventricular tachycardia; III = abolition of ventricular tachycardia in patients with ventricular tachycardia during a baseline Holter recording.
(13) Ventricular couplets or triplets (Lown grade IV) were found in less than 10% in patients in age from 15 to 17 years, 33% in patients from 18 to 20 years and showed no increase with age.
(14) Normal neutrophil membrane preparations containing beta-adrenergic receptors were exposed to several concentrations of three redox couplets native to plasma: lactate (L)-pyruvate (P), beta-hydroxybutyrate (BOHB)-acetoacetate (AcAc), and glutathione (GSH-GSSG).
(15) Treatment with flecainide alone resulted in a 38% mean reduction (p less than 0.05) of ventricular premature complexes, a 75% (p less than 0.01) mean reduction of couplets, and elimination of ventricular tachycardia.
(16) Multiformity was found in 27 (28%), couplets in 18 (19%) and ventricular tachycardia in 11 (11.5%).
(17) Patients without arrhythmia inducibility had a high incidence of multiformity (56%) and bigeminy (44%), but a low incidence of either couplets (11%) or spontaneous ventricular tachycardia (11%) on Holter monitoring.
(18) Malignant ventricular premature beats (ventricular couplets, ventricular tachycardia, and R-on-T-type ventricular premature beats) were observed in three of these four patients.
(19) This may explain the observation that the couplets are seldom followed by consecutive ventricular ectopic complexes or ventricular tachycardia.
(20) The effect of Bonnecor on couplets and volleys was clinically relevant in 52 and 46%, respectively, of the patients (reduction greater than or equal to 93%) and approximately corresponds to the results with other antiarrhythmic drugs.
Octave
Definition:
(n.) The eighth day after a church festival, the festival day being included; also, the week following a church festival.
(n.) The eighth tone in the scale; the interval between one and eight of the scale, or any interval of equal length; an interval of five tones and two semitones.
(n.) The whole diatonic scale itself.
(n.) The first two stanzas of a sonnet, consisting of four verses each; a stanza of eight lines.
(n.) A small cask of wine, the eighth part of a pipe.
(a.) Consisting of eight; eight.
Example Sentences:
(1) In the postsynaptic layers, frequencies up to three octaves from the neurons' best frequency induced two-tone suppression that was sensitive to BIC.
(2) In V1, 68% of the neurones exhibited low-pass temporal tuning characteristics and 32% were very broadly tuned, with a mean temporal frequency full band width of 2.9 octaves.
(3) The torus also received bilateral input from the nucleus ventromedialis thalami, nucleus of lemniscus lateralis, nucleus medialis, anterior octaval nucleus, descending octaval nucleus, and the reticular formation.
(4) She grew up in St Louis, Missouri, more impressed as a young girl by Mariah Carey's multi-octaves and Lauryn Hill.
(5) Two component tones of each stimulus were approximately an octave apart.
(6) Average half-width (at half-height) of the spatial-frequency tuning curves constructed from the data was 1.4 octaves, and was not dependent upon the level of adaptation or the spatial frequency of the test grating.
(7) The limited data from diplacusis measurements and octave adjustments suggest that the exaggerated negative pitch shifts are the consequence of a large increase in pitch at low stimulus levels which "recruits" at higher levels.
(8) When comparing conventional octave audiometry and Békésy threshold tracing, the latter method is found to be more subtle in finding carriers of genes for recessive deafness.
(9) 4) There is a disproportionately large cortical surface representation of the highest-frequency octaves (basal cochlea) within AI.
(10) Bursts of one-third octave noise with center frequencies of 500, 1000, 2000, and 4000 Hz and durations of 15, 20, 50, 100, 200, and 300 msec were used as stimuli.
(11) The pars lateralis and rostral anterior octaval nucleus may be additional afferent sources.
(12) In Experiment 2, 2-point threshold-duration functions were compared for 4-kHz tones and octave-band noise bursts presented in backgrounds of quiet and continuous noise.
(13) Optimum filter bandwidth was found to be about 1.1 octaves.
(14) It was found that the neurons could respond well to single octaves of the spatial frequencies normally present in faces, that the most effective bands were 4-8, 8-16 and 16-32 cycles per face (cpf), and that the bands 2-4 and 32-64 cpf were partly effective.
(15) In the two experiments reported here, subjects performed repeated octave adjustments for pairs of simultaneous and successive tone bursts.
(16) One-third octave band frequency analysis of the weighted signals indicated that the dominant frequencies were usually 1.6 to 3.15 Hz, except when the vehicles were idling and higher frequencies predominated.
(17) Results varied by no more than one octave in 79 per cent of the cases.
(18) Speech and noise are both spectrally shaped according to the bisector line of the listener's dynamic-range of hearing, but with the noise in a single octave band (0.25-0.5 or 0.5-1 kHz) increased by 20 dB relative to this line.
(19) It is shown that phase-locking begins to decline at about 600 Hz and is no longer detectable above 3.5 kHz which is about 1 octave lower than in the cat, squirrel monkey and some birds.
(20) Chinchillas were exposed to an 86 dB SPL octave band of noise centered at 4.0 kHz for 3.5--5 days.