(n.) An axis to which a carpel of a compound pistil may be attached, as in the case of the geranium; or which is left when a pod opens.
(n.) A columnlike axis in the capsules of mosses.
(n.) A term applied to various columnlike parts; as, the columella, or epipterygoid bone, in the skull of many lizards; the columella of the ear, the bony or cartilaginous rod connecting the tympanic membrane with the internal ear.
(n.) The upright pillar in the axis of most univalve shells.
(n.) The central pillar or axis of the calicles of certain corals.
Example Sentences:
(1) Two different prototypes of columella materials made from aluminum oxide ceramics were newly designed by the author for ossicular reconstruction.
(2) In the infant and small child, when most repairs are done, nose tip projection is due more to the alar dome component than to the columella.
(3) Definitive lip and columella surgery is facilitated.
(4) The infection rate for P. columella from MI, was 50% and for L. gedrosiana was 32.5%, whereas L. natalensis, S. elodes and S. attenuata were refractory.
(5) The most important reason for the resorption are mechanical factors; this has been shown by comparing the load of implanted tissue on the columella and on the dorsum of the nose.
(6) Vibration measurements were made at a number of positions near the proximal (basal) end of the basilar membrane, and on the columella footplate, of Caiman crocodilus using a capacitive probe.
(7) In the same manner, Denonvilliers' flap may be employed to restore contour of the nasal ala, since its scar sequel is very acceptable, and Dieffenbach's flap may be used to reconstruct the columella.
(8) Newborns have been examined with an otoscope and two different kinds of nasal lesions have been considered: (1) pyramid deformation with septum dislocation and columella deviation; (2) deviation and subluxation of the septum.
(9) Data regarding the 2,341 discovery sites of L. columella recorded by collectors during surveys are analysed.
(10) Where the inferior view shows a "tent tip" skyline, lateral crus advancement is required and can be achieved in asynchronous repairs by Pigott alar leapfrog at primary repair or by Potter V-Y advancement at the time of forked flap columella lengthening.
(11) Paucity of lobular cartilage; the flat dorsum; short columella; wide flaring nares; and skin that tends to keloid formation have led many surgeons to attempt radical surgical techniques to obtain rather limited results.
(12) The value of the modified Millard method in the management of unilateral nose deformities and the author's own approach to primary columella elongation in bilateral cleft are presented.
(13) Over-lengthening the columella at the expense of alar dome projection results in an unaesthetic nose at maturity.
(14) A comparison of three types of columella currently used--bone, ceramic, and polyethylene--is presented.
(15) In most patients, effective treatment was to repack the nose and cauterize a bleeding site, or to suture an open area either in the incision or at the columella-septum junction.
(16) The results of the study would suggest that the median forehead flap can be elevated without incorporating the supratrochlear vessels, but the flap design should be reserved for those clinical situations where the pedicle must be extensively mobilized, e.g., reconstruction of the nasal tip and columella and the presence of a low-lying frontal hairline.
(17) There was a thick columella and an elongated continuous nasal septum separating the nasal cavities.
(18) Philtrum length, philtrum shape, philtrum depth, nasolabial triangular area, vermilion thickness, Cupid's bow peak, horizontal upper lip groove, vermilion border, alar size, depth of alar groove, nasal deviation, nostril shape, nasal tip, columella height, sill shape, columella width, and facial balance of the anterior, profile, and caudal views are used as aesthetic checkpoints for the results of a cleft lip operation.
(19) The surgical technique used enables correction in a single operation through suture of the lateral portions at the midline and elevation of the bifurcated flap of the prolabium to form the columella and the nasal floor.
(20) The lengthening and lowering of the short and sometimes retracted columella and narrowing of the alar bases is performed by making a columellar splitting incision and extending it along the alar sills.
Vibration
Definition:
(n.) The act of vibrating, or the state of being vibrated, or in vibratory motion; quick motion to and fro; oscillation, as of a pendulum or musical string.
(n.) A limited reciprocating motion of a particle of an elastic body or medium in alternately opposite directions from its position of equilibrium, when that equilibrium has been disturbed, as when a stretched cord or other body produces musical notes, or particles of air transmit sounds to the ear. The path of the particle may be in a straight line, in a circular arc, or in any curve whatever.
Example Sentences:
(1) The Cavitron Ultrasonic Surgical Aspirator (CUSA) is a dissecting system that removes tissue by vibration, irrigation and suction; fluid and particulate matter from tumors are aspirated and subsquently deposited in a canister.
(2) In order to control noise- and vibration-caused diseases it was necessary not only to improve machines' quality and service conditions but also to pay special attention to the choice of operators and to the quality of monitoring their adaptation process.
(3) The intensity changes seen for alpha-fucose were found to follow a reversible first-order rate-equation and the rate constants obtained from different vibrational bands were found to be consistent among themselves and in reasonable agreement with those obtained by other techniques.
(4) Amplitude of the musical vibrations decreased by inhalation of amyl nitrite, but increased by infusion of methoxamine.
(5) The response of isolated muscle tissue of white rats to low-frequency vibration has been studied.
(6) The "random coil" conformational problem is examined by comparison of vibrational CD (VCD) spectra of various polypeptide model systems with that of proline oligomers [(Pro)n] and poly(L-proline).
(7) Headache and vertigo were not linked with exposure to vibration in forestry and a significant part of the numbness reported may be due to the carpal tunnel syndrome.
(8) Additionally, by ultrasonic vibration of tissues that had been subjected to prolonged osmium fixation, the epithelium was removed and such microdissected membranes similarly were examined.
(9) The ability of a mathematical model to evaluate the effects of two different pain modulating procedures (partial nerve block and vibration) on acute experimental pulpal pain was studied.
(10) The only likely cause for the pathological vascular findings in our patient was an exposure to vibration due to excessive off-street motorcycle driving.
(11) Time-resolved infrared spectroscopy with 0.5-ps resolution is used to track the evolution of the CO stretching vibration after visible photoexcitation of carboxyhemoglobin in water at room temperature.
(12) Biodynamic stressors such as acceleration, vibration, heat, and cold can affect pilot performance.
(13) There have been shown many changes, which took place in the various anatomic-physiological formations of the brain, and evaluated their significance in organism's responses to the effects of ionizing and nonionizing radiation, hyperoxia, hypoxia, accelerations, vibrations and combined effects of some of those factors.
(14) Tetrapolar rheovasography was used to medically examine 54 riveters, of equal age and duration of work, who were exposed to the complex action of low-intensity vibration and noise.
(15) A vibration-rotation-tunneling band of the perdeuterated cluster has been measured near 89.6 wave numbers by tunable far infrared laser absorption spectroscopy.
(16) Vibratory sensitivity was strongly related to height when measurements were made with either the vibration sensitivity tester (P = .02) or the biothesiometer (P less than .01); however, there was no relation between thermal sensitivity (as measured with the thermal sensitivity tester) and height.
(17) Our experiments with monkeys gave typical resonance curves for the transmission of vibration of the bulbi with maxima between 25 and 31.5 Hz.
(18) Altering the frequency of vibration did not alter the distribution of tremor frequencies.
(19) Superficial cutaneous stimulation of the dorsal side of the forearm during tendon vibration noticeably decreased the P1 peaks in both types of motor units.
(20) A survey is given of the literature on the sensitivity of the vestibular system to audio-frequency sound and vibration in animals.