(n.) A motion like that of waves; a moving in this and that direction; as, the fluctuations of the sea.
(n.) A wavering; unsteadiness; as, fluctuations of opinion; fluctuations of prices.
(n.) The motion or undulation of a fluid collected in a natural or artifical cavity, which is felt when it is subjected to pressure or percussion.
Example Sentences:
(1) Spectral analysis of spontaneous heart rate fluctuations, a powerful noninvasive tool for quantifying autonomic nervous system activity, was assessed in Xenopus Laevis, intact or spinalized, at different temperatures and by use of pharmacological tools.
(2) The influence of the various concepts for the induction of lateral structure formation in lipid membranes on integral functional units like ionophores is demonstrated by analysing the single channel current fluctuations of gramicidin in bimolecular lipid membranes.
(3) During control, no significant difference between systolic fluctuation (delta Pa) and pleural swings (delta Ppl) was found.
(4) The fluctuations in [Ca2+]i measured with fura-2 were synchronized among the population of cells observed and were sensitive to extracellular Ca2+ concentration ([Ca2+]o).
(5) Large emission intensity fluctuations are observed from analyte species in inductively coupled plasmas.
(6) The titres of phase I antibodies fluctuated from 0 to 16 depending on the antigen applied.
(7) Macroscopic fluctuations of liver alcohol dehydrogenase enzymic activity in complex reaction consisting in ethanol oxidation and butyraldehyde reduction were studied.
(8) The curve of glucose fluctuations was smoother after 50 micrograms than after 100 micrograms and control.
(9) During a single reversal trial of two 2-wk experimental periods, teats of all glands of 12 Holstein cows were subjected to a milking routine conducive to large vacuum fluctuations and flooded teat cups.
(10) For the case of the fluctuating pressure, the strength of the artery becomes considerably lower than those under constant amplitude and two-step-multi-duplicated pulsatile pressure.
(11) The fluctuations in heart rate (HR) and blood pressure (BP) over 24-h were measured at 30-min and 1-h intervals, respectively.
(12) The large degree of inter-dose fluctuation between doses indicates that it is preferable to use pre-dose plasma sodium valproate levels to guide the clinical management of epileptic patients.
(13) Painful manifestations (arthralgia, myalgia), variable with fluctuations in the IS affection were observed in both groups (S1, S2).
(14) These apparent conflicting results between IK and the tail current could not be explained by extracellular K+ fluctuation, because 20 mM Cs+ alone depressed both factors, but an additional application of Ba2+ caused an increase in both components compared with those in the former condition.
(15) This model characterized the abnormal flow by a weak fluctuation of wall shear stress at the site adjacent to the vessel wall.
(16) The results of the present experiments show that capillary blood flow in the cerebral cortex fluctuates, whether the cat's head is supplied by the animal's intact circulation or by an artificial circulation system.
(17) Seasonal fluctuations in IOP were observed (P = 0.0007), with higher IOP occurring in the winter.
(18) Among all subgroups, the odds ratios adjusted for pertinent confounders and interactions fluctuated randomly by about 0.9 and showed no consistent trend with increased alcohol consumption.
(19) During 70 days or so from the time of recruitment until just before the beginning of the cycle during which a follicle is destined to ovulate, folliculogenesis is a continuous process dependent on gonadotrophins but independent of the fluctuations in their concentrations occurring during this time.
(20) The proportion of sampling runs characterized by normal fluctuating levels increased from 38% in the first 2 years of use to 80% during the 5th year of use.
Undulation
Definition:
(n.) The act of undulating; a waving motion or vibration; as, the undulations of a fluid, of water, or of air; the undulations of sound.
(n.) A wavy appearance or outline; waviness.
(n.) The tremulous tone produced by a peculiar pressure of the finger on a string, as of a violin.
(n.) The pulsation caused by the vibrating together of two tones not quite in unison; -- called also beat.
(n.) A motion to and fro, up and down, or from side to side, in any fluid or elastic medium, propagated continuously among its particles, but with no translation of the particles themselves in the direction of the propagation of the wave; a wave motion; a vibration.
Example Sentences:
(1) Three mechanisms play an important role: true elongation of the length of the nerve in the relaxed state against elastic forces; movement of the nerve trunk in the longitudinal direction; and increase and decrease of the tissue relaxation at the level of the nerve trunk (relaxed course) and the nerve fibers (change in the undulated course).
(2) In irregular undulation 89.1% of the time corresponded to Stage 2.
(3) These two forms could easily be differentiated by examination of the undulating membrane and kinetoplast.
(4) The findings were confirmed by a histopathological analysis showing the development of coagulative necrosis and myocytolysis as well as undulations of heart muscle cells as a sign of cardiogenic shock.
(5) Paroxysmal headache of the migraine type as well as permanent undulating headache (which we call cephalea) can lead to chronification, both often mixes within the chronification.
(6) After treatment with the contraction medium of Hoffmann-Berling, the filaments appear to be undulated.
(7) An undulating lightweight roof is supported by 211 narrow steel columns, sheltering a glass box holding the cafe and shop, and a chestnut timber-covered box holding the displays.
(8) The original concept of the blood pump is represented by an asymmetrical type of pump with an asymmetrical diaphragm and undulating motion of the diaphragm allowing optimal washing of the blood chamber.
(9) When blastomers cease cleaving, their surfaces undulate and form blebs.
(10) Foremost among these is a modification of the cell wall from an undulating structure to one which is smooth and has become enlarged.
(11) The distal fibular physis also begins as a transverse structure that becomes undulated and has extensive peripheral lappet formation.
(12) Undulations in the levels of all responses were noted; the "weaker" the antigen the larger the undulations.
(13) Tendon fibers lose their typical undulating appearance and become quite straight.
(14) On the rehabilitation ward of a tertiary care hospital, the patient developed undulating fever to 39.6C, rapidly worsening peripheral vascular disease, and pulmonary emboli.
(15) All human sera, from patients with tuberculosis as well as from control subjects, gave almost identical undulating patterns of reactivity with the decapeptides.
(16) For instance, platelets probably contract, possess a microfilament network, and behave like undulating membrane organelles.
(17) The incidence of the 60-69 year old males dropped in a range of 10%; that of the females with the same age had an undulating course with rising trend.
(18) The characteristic features of laparoscopic appearance--gentle undulation--were observed in 11 out of 13 (85%) patients with PBC.
(19) Tortuous undulating agranular endoplasmic reticulum (ER) was usually closely associated with microperoxisomes.
(20) Conversely, nerve shortening enhanced the undulation.