What's the difference between spike and umbo?

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.

Umbo


Definition:

  • (n.) The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike.
  • (n.) A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvae of echinoderms or in the tympanic membrane of the ear.
  • (n.) One of the lateral prominence just above the hinge of a bivalve shell.

Example Sentences:

  • (1) The position, displacement and phase angle of the rotation axis of the ossicles was calculated based on the displacement and phase angle of the umbo, malleus head and lenticular process.
  • (2) The bending will also affect the displacements transmitted to the ossicular load, and introduce significant errors into estimates of such displacements based on measurements of umbo displacement even at frequencies as low as a few kHz.
  • (3) The umbo region may represent the center of superficially radial dispersion.
  • (4) The epithelial migration center was found at the region of umbo, manubrium, and the short process of the malleus.
  • (5) It is demonstrated that the rotation angels can not account for the measured movement of the umbo, which leads to the conclusion that for static high pressure levels the classical hypothesis of rotation around a fixed axis has to be abandoned.
  • (6) There is a small area we have termed the "slow zone", located anterior and inferior to the umbo, that has comparatively fewer patches and where ink dots can remain static for several weeks.
  • (7) This attachment is most intimate at the level of the umbo and becomes progressively more tenuous as the short process is approached.
  • (8) It is shown further that a linear relationship between umbo displacement and volume displacement exists.
  • (9) The acoustically estimated "drum location" generally lay between the optically determined vertical planes containing the TOD and the umbo.
  • (10) The displacement of the umbo is compared to other work.
  • (11) All of the modifications (except the perforation) had a minimal effect on umbo displacement; this seems to imply that the pars flaccida has a minor acoustic role in human beings.
  • (12) Due to the gliding movement in the malleus-incus joint, this motion changes at the umbo into outward rotation, counteracting the tensor tympani muscle.
  • (13) When the motion is rotational the position of the axis of rotation shifts with frequency, the shifts are so large that the axis can lie near the umbo so that amplitudes at the processus lateralis are larger than at the umbo.
  • (14) The umbo moved piston-like at 0.1-0.8 kHz and 2.6-4.5 kHz but in an ellipse at 1.0-2.4 kHz.
  • (15) The vibration amplitude and phase angle of the umbo, malleus head, lenticular process and stapes head were measured at 19 frequencies between 0.1 kHz and 4.5 kHz.
  • (16) The malleus head showed elliptical movement with its long axis anteriorly tilted around 45 degrees from the direction of the umbo vibration at 0.1 kHz.
  • (17) As a result of the bending, the frequency response at the umbo at high frequencies displays much higher amplitudes and larger phase lags than when the manubrium is rigid.
  • (18) The effects of aditus blockage, decrease of tympanic cavity volume, and resection of the tensor tympani muscle on umbo displacement were studied in human temporal bones using a new non-contacting video measuring system.
  • (19) The umbo, lenticular process and stapes head vibrated parallel at lower frequencies.
  • (20) The three-dimensional movements of the umbo, the proc.