(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.
Spikelet
Definition:
(n.) A small or secondary spike; especially, one of the ultimate parts of the in florescence of grasses. See Illust. of Quaking grass.
Example Sentences:
(1) Small transient all-or-none depolarizations (also termed in the literature fast prepotentials, spikelets, pseudospikes, d-spikes, or short latency depolarizations) and their association with lucifer yellow (LY) dye-coupling were analyzed in CA1-CA3 hippocampal pyramidal cells in urethane anesthetized rats.
(2) The isolates were grown on Sabouraud glucose agar for 2 days before being inoculated into boiled spikelets of Axonopus compressus (Gramineae) and then into induction medium (IM).
(3) Spikelets rose from base line as 3-10 mV depolarizing wavelets with a duration between 5 and 10 ms.
(4) The action potentials and the subthreshold spikelets were shown to be Na+ dependent and are presumably generated by a voltage-dependent inactivating Na+ conductance.
(5) Hooked macrohairs on the lemma of the spikelet show that morphological modifications in grasses for dispersal by attachment to the surface of animals were present in the Late Eocene.
(6) flower glume colour, degree of lateral spikelets development, hairy rechis of the ear, were observed in diallel crosses among the varieties Nutans 244, Trumpf, DZ-02389, Hiproly and Brachitic.
(7) Plateau potentials with a high threshold and high-threshold spikelets were Ca2+ dependent and seem to be generated by non-inactivating and possibly inactivating Ca2+ conductances.
(8) Relay cells, on the other hand, were strongly depolarized and fired spikelets at a greatly increased frequency during EOD-interruptions.
(9) It was found that (a) 15 of the 24 LY-injected pyramidal neurons (63%) showed dye-coupling; (b) spontaneous, anti- and orthodromically evoked spikelets (3-7 ms in duration; 3- to 12-mV peak) were recorded in 40 of 95 cells (42%); (c) there was a significantly higher probability of dye-coupled neurons with spikelets and of uncoupled ones without spikelets; (d) spikelet waveform and amplitude were unaffected by spontaneous or imposed polarizations; (e) large hyperpolarizations could reduce the rate and even prevent spikelets; and (f) spikelets could precede or follow spikes, the latter were more frequent with large depolarizations.
(10) Electrophysiological findings, and the association of dye-coupling and spikelets, suggest strongly that at least some spikelets are coupling potentials.
(11) Discovery of a female spikelet of the grass genus Pharus (Gramineae: Bambusoideae: Phareae) in association with mammalian hair in Dominican Republic amber provides the first fossil evidence of epizoochory.