(n.) A musical note produced by a number of vibrations which is a multiple of the number producing some other; an overtone. See Harmonics.
Example Sentences:
(1) Complex tones containing the first 20 harmonics of 50, 100, or 200 Hz, all at equal amplitude, were used.
(2) Left ventricular asynchrony was quantified by the phase difference of the first Fourier harmonic between postero-basal and antero-apical wall motion.
(3) In the case of the pressure time-derivative the significant harmonic content is shifted toward higher frequencies.
(4) The discrimination of the fundamental frequency (fo) of pairs of complex tones with no common harmonics is worse than the discrimination of fo for tones with all harmonics in common.
(5) The distribution half-life was 6.6 min and the elimination half-life was 39.0 min (harmonic means).
(6) When the coupling evolution was followed in the same subject, it did not appear for all locomotor frequencies but only for locomotor periods close to harmonics of respiratory ones (absolute coordination).
(7) However, tone phonemes are also comprised of higher harmonics that also may cue tone phonemes.
(8) The teeth developing in teratoma are not comparable to the normal process which is harmonized when the formation and the distribution of the various parts are concerned.
(9) However, in both LSO and MSO there is an expanded representation of the frequencies around 60 kHz, the main frequency component of the bat's echolocation call; there is another expanded representation of the range around 90 kHz, the third harmonic of the call.
(10) The reproducibility and precision of results could be further improved by harmonizing the future distributions of reagents.
(11) The three-dimensional spatial distribution of filaments was studied with the aid of small-angle second-harmonic scattering, and the filaments were found to permeate the tendon cross-section in an apparently random fashion.
(12) Increased training is required for the professional persons involved, and a broad selection of therapeutic proposals should be offered to all of the families concerned, harmonizing with various instances particularly social and health authorities and the police and legal authorities.
(13) Backbone atoms tend to be more nearly harmonic than sidechain atoms.
(14) The elimination half-life of each metabolite was short, with harmonic mean values of 1.29, 0.98 and 0.92 hr for PCHP, trans-PPC and cis-PPC, respectively.
(15) Of the alternating-current components, only the fundamental is important at high frequencies, the higher harmonics being relatively more attenuated.
(16) The harmonic mean half-life was 7.4 hours after both treatments.
(17) We propose a second-order harmonic model to describe circadian periodicity in the 24-h cycle of microfilarial counts.
(18) However, regulatory variations have largely been removed within politically and geographically similar regions (e.g., the U.S.A., the European Community, the Nordic countries) and there now appears to be a consensus regarding the value of harmonizing international requirements.
(19) A number of other characteristic harmonic behaviors were also observed.
(20) Both tones were based on a five-component harmonic series.
Sympathetic
Definition:
(a.) Inclined to sympathy; sympathizing.
(a.) Produced by, or expressive of, sympathy.
(a.) Produced by sympathy; -- applied particularly to symptoms or affections. See Sympathy.
(a.) Of or relating to the sympathetic nervous system or some of its branches; produced by stimulation on the sympathetic nervious system or some part of it; as, the sympathetic saliva, a modified form of saliva, produced from some of the salivary glands by stimulation of a sympathetic nerve fiber.
Example Sentences:
(1) In dogs, cibenzoline given i.v., had no effects on the slow response systems, probably because of sympathetic nervous system intervention since the class 4 effects of cibenzoline appeared after beta-adrenoceptor blockade.
(2) Plasma NPY correlated better with plasma norepinephrine than with epinephrine, indicating its origin from sympathetic nerve terminals.
(3) They are best explained by interactions between central sympathetic activity, brainstem control of respiration and vasomotor activity, reflexes arising from around and within the respiratory tract, and the matching of ventilation to perfusion in the lungs.
(4) Noradrenaline (NA) was released from sympathetic nerve endings in the tissue by electrical stimulation of the mesenteric nerves or by the indirect sympathomimetic agent tyramine.
(5) Following injections of HRP into the apex of the heart, the sinoatrial (SA) nodal region and the ventral wall of the right ventricle, we observed that HRP-labeled sympathetic neurons were localized predominantly in the right stellate ganglia, and to a lesser extent, in the right superior and middle cervical ganglia, and left stellate ganglia.
(6) Chick sympathetic nerve fibers densely innervate expansor secundariorum muscle, but not skeletal muscle.
(7) Assays of isolated single sympathetic neurones show that their transmitter functions can be either adrenergic or cholinergic depending on growth conditions.
(8) The increased sympathetic nervous activity during exercise appears to be a toxic rather than a compensatory effect of alcohol.
(9) It is suggested that contractile responses to electrical stimulation in isolated sheep urethral smooth muscle are mediated by the sympathetic nervous system, mainly through release of noradrenaline stimulating postjunctional alpha 1-adrenoceptors.
(10) The distinguishing feature of this study is the simultaneous measurement of sympathetic firing and norepinephrine spillover in the same organ, the kidney, under conditions of intact sympathetic impulse traffic.
(11) The marine natural product lophotoxin has produced a non-reversible antagonism of parasympathetic and sympathetic functions that are known to be mediated by C6 sub-type nicotinic receptors.
(12) The distribution and ultrastructure of lipopigments in the rat sympathetic, vagus and spinal ganglion neurons were studied in vivo and in vitro using fluorescence and electron microscopy.
(13) In 27 decerebrate cats under various experimental conditions, we studied the effects of programmed premature ventricular contractions on the impulse activity of preganglionic sympathetic fibres isolated from the third left thoracic ramus.
(14) Sympathetic nervous system function was blocked in developing male SHR by treating pups from days 0 to 14 with: (1) guanethidine, (2) combined alpha- and beta-receptor antagonists (prazosin and timolol), or (3) vehicle (5% sucrose).
(15) These results show the existence of a depressor response and decreases in HR and RNA in the rabbit mediated by the action of BK on cardiac sympathetic afferents.
(16) Finally, fosinopril had no effect on the pressor or chronotropic effects of norepinephrine (NE) or 1,1-dimethyl-4-phenylpiperinium (DMPP) or electrical stimulation of the sympathetic ganglia of pithed rats.
(17) Sympathetic nerve stimulation may cause a rise in IASP by its action directly at the IAS smooth muscle partially through release of NPY.
(18) In anesthetized cats, the enhancement of sympathetic activity and increase of the blood pressure in exclusion of afferents (section of vagosympathetic trunks and clamping of common carotid arteries) as well as the disappearance of the activity in enhanced afferentation, were shown to be transient and to disappear within a few minutes-scores of minutes in spite of the going on deafferentation or enhancement of afferentation.
(19) Stimulus-response characteristics suggested that this system was well suited for a role in tonic inhibition of sympathetic activity.
(20) This increase is presumably the result of radiation induced release of their parent amines from the brain; in the case of VMA the secondary response of the peripheral sympathetic system might occur.