What's the difference between peak and spike?

Peak


Definition:

  • (n.) A point; the sharp end or top of anything that terminates in a point; as, the peak, or front, of a cap.
  • (n.) The top, or one of the tops, of a hill, mountain, or range, ending in a point; often, the whole hill or mountain, esp. when isolated; as, the Peak of Teneriffe.
  • (n.) The upper aftermost corner of a fore-and-aft sail; -- used in many combinations; as, peak-halyards, peak-brails, etc.
  • (n.) The narrow part of a vessel's bow, or the hold within it.
  • (n.) The extremity of an anchor fluke; the bill.
  • (v. i.) To rise or extend into a peak or point; to form, or appear as, a peak.
  • (v. i.) To acquire sharpness of figure or features; hence, to look thin or sicky.
  • (v. i.) To pry; to peep slyly.
  • (v. t.) To raise to a position perpendicular, or more nearly so; as, to peak oars, to hold them upright; to peak a gaff or yard, to set it nearer the perpendicular.

Example Sentences:

  • (1) The coefficient of variation in the integrated area of a single peak is 16%.
  • (2) Here we show that this induction of AP-2 mRNA is at the level of transcription and is transient, reaching a peak 48-72 hr after the addition of RA and declining thereafter, even in the continuous presence of RA.
  • (3) Amino acid sequence analysis showed that both peaks had identical N-terminal sequences through the first 28 residues.
  • (4) These observations were confirmed by the killing curves in pooled serum obtained at peak and trough levels.
  • (5) The peak molecular weight never reached that of a complete 2:1 complex.
  • (6) Peak Expiratory Flow and Forced Expiratory Mean Flows in the ranges 0-25%, 25-50% and 50-75% of Forced Vital Capacity were significantly reduced in animals exposed to gasoline exhaust fumes, whereas the group exposed to ethanol exhaust fumes did not differ from the control group.
  • (7) We’re learning to store peak power in all kinds of ways: a California auction for new power supply was won by a company that uses extra solar energy to freeze ice, which then melts during the day to supply power.
  • (8) No significant correlations of peak VO2 were observed between the 3 tests.
  • (9) Peaks in the sperm index were preceded by 6 days with peaks in the serum testosterone concentration.
  • (10) Peak incidence is found among 40 to 49-year-old and 60 to 64-year-old women.
  • (11) The remainder of the radioactivity appeared chromatographically just prior to the bisantrene peak, indicating that compounds more polar than the parent were present as transformation products.
  • (12) The curve of mitoses peaked at the same time as that of TK activity but was only 68% as extensive.
  • (13) We conclude that the rat somatosympathetic reflex consists of an early excitatory component due to the early activation of RVL-spinal sympathoexcitatory neurons with rapidly conducting axons and a later peak that may arise from the late activation of these same neurons as well as the early activation of RVL vasomotor neurons with more slowly conducting spinal axons.
  • (14) The ACTH deficiency recovered spontaneously, with normal cortisol responses to depot Synacthen (greater than 1380 at 6 h) and hypoglycemia (peak, 590) 14 and 18 months postpartum, respectively.
  • (15) No relationship was found with the absolute value of either peak or area GH.
  • (16) GnRH infusion produced an immediate increase in plasma LH concentrations in the mares that ovulated during the infusion period and LH levels peaked at the time of ovulation.
  • (17) In guinea pig ventricular myocytes, the positive contractile staircase was associated with ascending staircases of both peak systolic and end diastolic [Ca2+]i because of a cumulative increase in diastolic [Ca2+]i.
  • (18) A considerably greater increase in the peak plasma OT concentration resulted when hungry foster litters of 6 pups were suckled after the mothers' own 6 pups had been suckled.
  • (19) The incidence was 0.31 per 1000 gynaecological admissions and the peak age incidence was in the age group 26 to 35 years.
  • (20) A relative net reduction of 47% in lactose malabsorption was produced by adding food, and the peak-rise in breath H2 was delayed by 2 hours.

Spike


Definition:

  • (v. t.) To set or furnish with spikes.
  • (v. t.) To fix on a spike.
  • (n.) A sort of very large nail; also, a piece of pointed iron set with points upward or outward.
  • (n.) Anything resembling such a nail in shape.
  • (n.) An ear of corn or grain.
  • (n.) A kind of flower cluster in which sessile flowers are arranged on an unbranched elongated axis.
  • (v. t.) To fasten with spikes, or long, large nails; as, to spike down planks.
  • (v. t.) To stop the vent of (a gun or cannon) by driving a spike nail, or the like into it.
  • (n.) Spike lavender. See Lavender.

Example Sentences:

  • (1) It was tested for recovery and separation from other selenium moieties present in urine using both in vivo-labeled rat urine and human urine spiked with unlabeled TMSe.
  • (2) The pons, on the other hand, has a bioelectrical activity of its own during PS, i.e., the ponto-geniculo-occipital spikes (PGO).
  • (3) The spikes likely correspond to VP3, a hemagglutinin, while the rest of the mass density in the outer shell represents 780 molecules of VP7, a neutralization antigen.
  • (4) In this series there were 45 patients (40%) with independent focal interictal EEG epileptic abnormalities over frontobasal cortex (with or without independent spiking over interomedial temporal region).
  • (5) It was shown that gradual recovery of spike wave patterns occurred from initial water swallowing to successive dry swalllowing.
  • (6) One might expect that a similar news spike and rebounding of support for stricter gun control can happen, given President Obama's new push.
  • (7) 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.
  • (8) The differentiated neuroblastoma cell possesses characteristics of an electrically excitable cell and can generate propagated potential spikes in which Ca2+ is the inward charge carrier.
  • (9) Jane's life clearly still has a massive Spike-shaped hole in it.
  • (10) Our hypothesis is that phase unlocking may be one of the induction mechanisms of spike-burst activity.
  • (11) The threshold of epileptic spiking varied inversely with the area of cortical damage inflicted by the electrode.
  • (12) In some ways, the Gandolfini performance that his fans may savour most is his voice work in Spike Jonze's Where the Wild Things Are (2009), the cult screen version of Maurice Sendak 's picture book classic – he voiced Carol, one of the wild things, an untamed, foul-mouthed figure.
  • (13) The best understood fusion mechanism is that of influenza virus, for which sequences involved in pH-dependent fusion can be correlated with the crystallographic structure of the spike protein.
  • (14) Single shocks applied to medullary pressor sites evoked a train of spikes in the interneurons.
  • (15) Many subjects have a negative spike in the beginning of a saccade in electro-oculographic signals.
  • (16) This enhancement of laminin synthesis corresponds to the mesangial expansion and to the development of laminin-containing spike formations of the glomerular basement membrane at week 8.
  • (17) A train of conditioning stimuli to either of the midbrain nuclei produced inhibition of evoked population spikes recorded in the CA1 pyramidal cell layer of the hippocampus.
  • (18) The brief (3 ms) afterhyperpolarizations that followed such spikes were blocked by intracellular injections of Cs+ or by bath applications of tetraethylammonium.
  • (19) They discharged one or two spikes only at the beginning of depolarizing current pulses.
  • (20) An increase followed by a decrease in the number of spikes per burst and a reduction in the peak activity were observed.