What's the difference between amplitude and magnitude?

Amplitude


Definition:

  • (n.) State of being ample; extent of surface or space; largeness of dimensions; size.
  • (n.) Largeness, in a figurative sense; breadth; abundance; fullness.
  • (n.) Of extent of capacity or intellectual powers.
  • (n.) Of extent of means or resources.
  • (n.) The arc of the horizon between the true east or west point and the center of the sun, or a star, at its rising or setting. At the rising, the amplitude is eastern or ortive: at the setting, it is western, occiduous, or occasive. It is also northern or southern, when north or south of the equator.
  • (n.) The arc of the horizon between the true east or west point and the foot of the vertical circle passing through any star or object.
  • (n.) The horizontal line which measures the distance to which a projectile is thrown; the range.
  • (n.) The extent of a movement measured from the starting point or position of equilibrium; -- applied especially to vibratory movements.
  • (n.) An angle upon which the value of some function depends; -- a term used more especially in connection with elliptic functions.

Example Sentences:

  • (1) After midazolam infusion, there was a 50% decrease in amplitude of P3 in response to target tones (P less than 0.006), whereas N3 latency increased by 40 ms (P less than 0.05).
  • (2) A significant correlation was found between the amplitude ratio of the R2 and the sensitivity ratio of the rapid off-response at short and long wavelengths.
  • (3) Intact rams exhibited GH secretory episodes of greater (P less than 0.01) amplitude than did castrated lambs.
  • (4) The maximum amplitude of the inward Na+ current, normalized by cell capacitance, is about sixfold larger, on the average, in LP lactotropes than in SP lactotropes.
  • (5) The examination of the standard waves' amplitude and latency of the brain stem auditory evoked response (BAEP) was performed in 20 guinea pigs (males and females, weighing 250 to 300 g).
  • (6) The amplitudes of the a-wave and the 01 decreased in dose-dependent manners, but their changes were less striking than those of the 01 latency.
  • (7) We have now started a prospective follow-up study in order to pursue the development of (a) p-ERG amplitudes and (b) funduscopic changes and visual acuity in these patients.
  • (8) Noradrenaline decreased the phasic contraction amplitude of the circular muscle and exerted a stimulant effect on the tone which suggested an existence of two alpha 1-adrenoceptor subtypes.
  • (9) elution patterns of the adducts formed by DBF metabolites with DNA and obtained in vivo at the optimal exposure time of 42-48 h were qualitatively very similar to the patterns obtained in vitro, but their amplitude was quantitatively reduced.
  • (10) In contrast, the average reduction in mean EEG amplitude with isoflurane was only 0.3% and there were neither periods of suppression nor any correlation between EEG amplitude and MAP.
  • (11) However, the effect of prior jaw motion and the effect of the recording site on the EMG amplitudes and on the vertical dimension of minimum EMG activity have not been documented.
  • (12) The ophthalmic headache's crisis is caused, in fact, by a spasm of convergence on an unknown exophory of which the amplitude of fusion is satisfying, and the presence of which can only be seen with test under screen.
  • (13) Moreover, the most recent combined application of the rat interstitial cell testosterone (RICT) bioassay and a novel multiple-parameter deonvolution model has allowed investigators to dissect plasma concentration profiles of bioactive LH into defined secretory bursts, which have numerically explicit amplitudes, locations in time, and durations, and are acted upon by determinable subject- and study-specific endogenous metabolic clearance rates.
  • (14) By this action, oxytocin is believed to increase the probability of successful regenerative spikes and thereby initiate electrical activity in quiescent preparations, increase the frequency of burst discharges, the number of spikes in each burst, and the amplitude of spikes in individual cells.
  • (15) Replication dependent on the SV40 origin and having the kinetics and approximate amplitude of an SV40 infection ensued.
  • (16) 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.
  • (17) Complex tones containing the first 20 harmonics of 50, 100, or 200 Hz, all at equal amplitude, were used.
  • (18) In the placebo group of 14 patients CNV-amplitudes even decreased after ten Infusions with multi-vitamins alone.
  • (19) ERGs of high amplitude and of normal wave form were recordable with prominent oscillatory potentials.
  • (20) increase in amplitude in both, hippocampus and neocortex was observed with MK 801 and ketamine and these agents also showed longer lasting influence.

Magnitude


Definition:

  • (n.) Extent of dimensions; size; -- applied to things that have length, breath, and thickness.
  • (n.) That which has one or more of the three dimensions, length, breadth, and thickness.
  • (n.) Anything of which greater or less can be predicated, as time, weight, force, and the like.
  • (n.) Greatness; grandeur.
  • (n.) Greatness, in reference to influence or effect; importance; as, an affair of magnitude.

Example Sentences:

  • (1) Multiple overlapping thin 3D slab acquisition is presented as a magnitude contrast (time of flight) technique which combines advantages from multiple thin slice 2D and direct 3D volume acquisitions to obtain high-resolution cross-sectional images of vessel detail.
  • (2) Thus, our study confirmed that male subjects with a history of testicular maldescent have an increased risk for testis cancer, although the magnitude of this risk was lower than suggested previously.
  • (3) In addition, despite the fact that the differences constitutes an information bias, the bias occurs in the same direction and magnitude in all the various subgroups and thus is nondifferential.
  • (4) The Pan American Health Organization, the Americas arm of the World Health Organization, estimated the deaths from Tuesday's magnitude 7 quake at between 50,000 and 100,000, but said that was a "huge guess".
  • (5) Problems associated with school-based clinics include vehement opposition to sex education, financing, and the sheer magnitude of the adolescents' health needs.
  • (6) The kinetic parameters for the hydrolysis of type I, II and III collagens have been measured and are similar in magnitude to those for the tissue collagenases.
  • (7) The second order rate constant for the association of Meumb-glycosides follows a pattern consistent with the magnitude of the activation energies involved therin.
  • (8) 3) The magnitude of K+ release is the ratio of two opposing mechanisms, a passive efflux and an active reuptake.
  • (9) When histamine (5 micrograms) was injected into three different levels of the ventricular system, the magnitude and duration of the resulting increases in plasma epinephrine and glucose were in the following rank order: the third ventricle greater than aqueduct much greater than fourth ventricle.
  • (10) The junctional currents were already constant 1 ms after step changes in the junctional voltage; this was three orders of magnitude faster than the other known examples of voltage-controlled gap junctions between embryonic cells.
  • (11) The magnitude and pattern of the acute-phase protein response was then compared with the local inflammatory reaction, assessed histologically, and with changes in the circulating concentration of interleukin-6, which is an important mediator of the acute-phase protein response.
  • (12) This lack of symmetry in shape and magnitude may be due to non-sphericity of the skull over the temporal region or to variations in conductivities of intervening tissues.
  • (13) The magnitude of erythropoietin-induced [Cai] increase, however, was insufficient to open Ca(2+)-activated K+ channels.
  • (14) The relationship existing between the magnitude of the stimulus and that of the response has been carefully studied for all the parameters.
  • (15) ODC attained maximum activity in controls on day 11, increasing by more than an order of magnitude above the activity found on day 9.
  • (16) It is suggested that this human model of unloading could serve to simulate effects of microgravity on skeletal muscle mass and function because reductions in muscle mass and strength were of similar magnitude to those produced by bed rest.
  • (17) The infusion of sodium acetoacetate resulted in a 10- to 15-fold increase in circulating concentrations of ketone bodies, which were similar in magnitude in normal subjects and diabetic patients.
  • (18) Ecological risk assessments are used by the US Environmental Protection Agency (US EPA) and other governmental agencies to assist in determining the probability and magnitude of deleterious effects of hazardous chemicals on plants and animals.
  • (19) The magnitude of the consequent inflammatory response was assessed by counting numbers and types of leukocytes in the bronchoalveolar lavage fluid.
  • (20) The program can produce solutions identical to those derived by a model-based expert system for the same domain, but with an increase of two orders of magnitude in efficiency.