(n.) A wave of the voice embracing both a rise and fall or a fall and a rise on the same a syllable.
(n.) A character, or accent, denoting in Greek a rise and of the voice on the same long syllable, marked thus [~ or /]; and in Latin and some other languages, denoting a long and contracted syllable, marked [/ or ^]. See Accent, n., 2.
(v. t.) To mark or pronounce with a circumflex.
(a.) Moving or turning round; circuitous.
(a.) Curved circularly; -- applied to several arteries of the hip and thigh, to arteries, veins, and a nerve of the shoulder, and to other parts.
Example Sentences:
(1) A case of dissecting hematoma involving the left main, left anterior descending, and left circumflex coronary arteries is described in a patient who had received vigorous closed-chest cardiac resuscitation.
(2) All of the above patients had an acute inferior myocardial infarction, and in 10 of the 12 patients with supraventricular arrhythmias and in four of five with sinus dysrhythmias, the origin of the sinus node artery started just after an occluded right coronary or left circumflex artery or was involved in the occlusion.
(3) Significant circumflex coronary artery disease (greater than or equal to 75% stenosis) was more prevalent in patients with posterior or inferoposterior infarction (17 of 21) than in those with isolated inferior infarction (11 of 23) (p less than 0.02).
(4) When left circumflex artery (LCX) was occluded, ST elevation in V4R lead after RCA occlusion was blocked.
(5) The effect of the xanthine oxidase inhibitor, allopurinol, on myocardial ultrastructure after left circumflex coronary artery occlusion (40 min) with or without reperfusion (60 min) was examined in rabbits.
(6) A cast was made of the stenotic circumflex coronary artery, the degree of stenosis is measured, and the per cent area stenosis calculated.
(7) Coronary artery rings isolated from the ischemic left circumflex coronary artery showed a similar degree of endothelial dysfunction to ACh, with normal relaxation in response to NaNO2.
(8) To study the relation between structure and vascular reactivity in mature coronary collateral arteries, we prepared 17 dogs with a casein occluder near the origin of the circumflex coronary artery.
(10) The animals were chronically instrumented with a microtip manometer in the left ventricle, two pairs of piezoelectric crystals for sonomicrometry and a hydraulic occluder around the circumflex branch of the left coronary artery and arterial and venous catheters.
(11) Anesthetized dogs were subjected to 5 minutes of left circumflex coronary artery (LCx) occlusion (or sham) followed by 10 minutes of reperfusion.
(12) Coronary perfusion with non-oxygenated Tyrode's solution was performed through a cannula inserted into the left circumflex coronary artery.
(13) The proximal circumflex coronary artery was occluded for 90 minutes and then reperfused for 2 hours via an extracorporeal circuit with either whole blood (n = 11) or with blood depleted of neutrophils by leukocyte filters (n = 11).
(14) Studies have been conducted on isolated segments of the left circumflex coronary artery of the dog to gain information on the mechanism or mechanisms of vasospasm.
(15) Myocardial infarcts were artificially induced in a series of dogs by ligation of the circumflex coronary artery.
(16) Muscle spasm, pressure on posterior circumflex vessels, and compromised pericephalic microcirculation in the newborn have been demonstrated to increase intraarticular pressure.
(17) The inferior MI was the result of complete occlusion of the right coronary artery (RCA) in 38 patients and the result of complete occlusion of the posterior descending artery (PDA) coming off the circumflex artery (Cx) in two patients.
(18) Vessel attempted: Left anterior descending (3), circumflex (4), obtuse marginal (2), diagonal (1), right coronary artery (3), and internal thoracic artery (1).
(19) Blockage of the balloon system was possibly caused by twisting the system to reach and pass the lesion in the branch of left circumflex coronary artery.
(20) Noradrenaline overflow from and the potassium content of circumflex territory venous effluent was unchanged.
Vowel
Definition:
(n.) A vocal, or sometimes a whispered, sound modified by resonance in the oral passage, the peculiar resonance in each case giving to each several vowel its distinctive character or quality as a sound of speech; -- distinguished from a consonant in that the latter, whether made with or without vocality, derives its character in every case from some kind of obstructive action by the mouth organs. Also, a letter or character which represents such a sound. See Guide to Pronunciation, // 5, 146-149.
(a.) Of or pertaining to a vowel; vocal.
Example Sentences:
(1) The obtained results are used to study the relation between the acoustic characteristics of these vowels and the corresponding articulatory dimensions.
(2) The current study explored the temporal course of the perception of vowel duration.
(3) In addition, they were tested with dichotic listening for correct reports of consonant-vowel syllables.
(4) Test items in each of the 4 groups therefore contained different amounts of information regarding the nature of the following vowel, due to coarticulatory influences of the vowel on the preceding consonants.
(5) Coarticulatory effects of the vowel on the aperiodic portion were found to (1) occur early in the aperiodic portion, (2) vary with consonant and vowel, and (3) vary with vowel feature.
(6) As for vowel formant, missing anterior teeth and missing posterior teeth presented more such differences for formant i and formants i and e, respectively.
(7) Vowel identification was best when at least two kinds of cues were available.
(8) Three male and 2 female subjects produced six repetitions of 12 utterances that were initiated and terminated by vowels and consonants of differing phonetic features.
(9) The perception of voicing in final velar stop consonants was investigated by systematically varying vowel duration, change in offset frequency of the final first formant (F1) transition, and rate of frequency change in the final F1 transition for several vowel contexts.
(10) These results suggest that Japanese monkeys process formant and pure-tone frequency increments differentially and that the same mechanisms mediate formant frequency discrimination in single-formant and vowel-like complexes.
(11) The major findings were as follows: (1) no significant difference was found in consonant identification scores between aperiodic, aperiodic + vocalic transition, and vocalic transition segments in CV syllables compared to those in VC syllables; (2) consonant identifications from vocalic transition + vowel segments in VC syllables were significantly greater than those from vocalic transition + vowel segments in CV syllables; (3) no significant difference was found in vowel identification scores between aperiodic + vocalic transition, vocalic transition + vowel, and vocalic transition segments in CV syllables compared to those in VC syllables; and (4) vowel identifications from aperiodic segments were significantly greater in CV syllables than in VC syllables.
(12) Comparisons between normalized spectral energy within a selected high frequency range revealed that energy within this frequency range for vowels produced by TE speakers was significantly higher than that produced by normal speakers.
(13) The amount of variability found in the labeling of speech contrasts may be dependent on cue salience, which will be determined by the speech pattern complexity of the stimuli and by the vowel environment.
(14) Acoustic information about the place of articulation of a prevocalic nasal consonant is distributed over two distinct signal portions, the nasal murmur and the onset of the following vowel.
(15) The shorter latency N2 was found for the separating features of vowels or intensities but not for consonants.
(16) After learning to categorize syllables consisting of [d], [b], or [g] followed by four different vowels, quail correctly categorized syllables in which the same consonants preceded eight novel vowels.
(17) The ability of listeners to identify 10 vowels under two conditions was investigated.
(18) In this article, acoustic analyses are reported which show that the spectral properties of stuttered vowels are similar to the following fluent vowel, so it would appear that the stutterers are articulating the vowel appropriately.
(19) The perceived goodness of i parallel vowels declined systematically as stimuli were further removed from the prototypic i parallel vowel.
(20) All subjects received 60 monaural and dichotic consonant-vowel (CV) nonsense syllables presented at equal loudness levels using the most comfortable level (MCL) as the loudness criteria.