(n.) The hollow bed where a stream of water runs or may run.
(n.) The deeper part of a river, harbor, strait, etc., where the main current flows, or which affords the best and safest passage for vessels.
(n.) A strait, or narrow sea, between two portions of lands; as, the British Channel.
(n.) That through which anything passes; means of passing, conveying, or transmitting; as, the news was conveyed to us by different channels.
(n.) A gutter; a groove, as in a fluted column.
(n.) Flat ledges of heavy plank bolted edgewise to the outside of a vessel, to increase the spread of the shrouds and carry them clear of the bulwarks.
(v. t.) To form a channel in; to cut or wear a channel or channels in; to groove.
(v. t.) To course through or over, as in a channel.
Example Sentences:
(1) These channels may, at least in some cases, be responsible for the generation of pacemaker depolarizations, thereby regulating firing behaviour.
(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) RNAs encoding a wild-type (RBK1) and a mutant (RBK1(Y379V,V381T); RBK1*) subunit of voltage-dependent potassium channels were injected into Xenopus oocytes.
(4) The dramas are part of the BBC2 controller Janice Hadlow's plans for her "unashamedly intelligent" channel over the coming months.
(5) This was unlike the action of the calcium channel blocker, cadmium, which reduced the calcium action potential and the a.h.p.
(6) Circuitry has been developed to feed the output of an ear densitogram pickup into one channel of a two-channel Holter monitor.
(7) It is concluded the decrease in cellular volume associated with substitution of serosal gluconate for Cl results in a loss of highly specific Ba2+-sensitive K+ conductance channels from the basolateral plasma membrane.
(8) Stimulation of atrial H1-receptors is suggested to directly cause an increase in Ca-channel conductance independent of intracellular cAMP content.
(9) Similarly, 50 microM D-600, a Ca+2 channel antagonist, significantly (P less than 0.01) reduced basal and 5-HETE-induced PRL release.
(10) The purpose of the present study was to analyze the effects of cromakalim (BRL 34915), a potent drug from a new class of drugs characterized as "K+ channel openers", on the electrical activity of human skeletal muscle.
(11) This promotion of repetitive activity by the introduction of additional potassium channels occurred up to an "optimal" value beyond which a further increase in paranodal potassium permeability narrowed the range of currents with a repetitive response.
(12) Channel activation persists through the process of platelet isolation and washing and is manifested in higher measured values of [Ca2+]cyt and [Ca2+]dt in the "resting state."
(13) At 100 microM-ACh the apparent open time became shorter probably due to channel blockade by ACh molecules.
(14) The effects of low doses of dihydropyridine (DHP) calcium channel antagonists nimodipine, nifedipine, (-)-R-202-791, and amlodipine, the DHP calcium channel agonist BAY K 8644 were investigated on clonic convulsions to pentylenetetrazole (PTZ) in mice.
(15) The following model is suggested: exogenous ATP interacts with a membrane receptor in the presence of Ca2+, a cascade of events occurs which mobilizes intracellular calcium, thereby increasing the cytosolic free Ca2+ concentration which consequently opens the calcium-activated K+ channels, which then leads to a change in membrane potential.
(16) SDS-PAGE analysis of the immunoprecipitates under reducing conditions revealed that the cardiac channel is mainly composed of two large polypeptides of 190 and 150 kDa, and five smaller polypeptides of 60, 55, 35, 30, and 25 kDa.
(17) In the presence of high external Cl, a component of outward current that was inhibited by the anion channel blocker diphenylamine-2-carboxylate (DPC) appeared in 70% of the cells.
(18) In vitro studies in cardiac Purkinje fibers suggested that reversal of amitriptyline-induced cardiac membrane effects by sodium bicarbonate may be attributed not only to alkalinization but also to increased in extracellular sodium concentration, diminishing the local anesthetic action of amitriptyline and resulting in less sodium channel block.
(19) The Ca2+ channel current recorded under identical conditions in rat dorsal root ganglion neurones was less sensitive to blockade by PCP (IC50, 90 microM).
(20) In voltage-clamp experiments the ion current flowing through the channels was homogeneous indicating a defined conformation and a uniform size.
Levee
Definition:
(n.) The act of rising.
(n.) A morning assembly or reception of visitors, -- in distinction from a soiree, or evening assembly; a matinee; hence, also, any general or somewhat miscellaneous gathering of guests, whether in the daytime or evening; as, the president's levee.
(v. t.) To attend the levee or levees of.
(n.) An embankment to prevent inundation; as, the levees along the Mississippi; sometimes, the steep bank of a river.
(v. t.) To keep within a channel by means of levees; as, to levee a river.
Example Sentences:
(1) What Katrina left behind: New Orleans' uneven recovery and unending divisions Read more Ten years on, resentment still lingers about the failure of the federal levee system during hurricane Katrina, the botched response of the Federal Emergency Management Agency (Fema), and the long and difficult process of accessing billions of dollars in grant money for rebuilding, which for some people is not finished.
(2) In the case of the Mississippi, however, the flood risks are compounded by bad city planning and a century of trying to squeeze rivers into tighter spaces through the levee system.
(3) "The ministerial code has been found to be breached," he said, as if it were like a hurricane battering a levee, a force of nature for which nobody is to blame.
(4) The flood-swollen waters still have 1,000 miles to go before they reach the Gulf of Mexico and forecasters warned there was considerable danger further down river in the days ahead, especially if there is more rain or if the levees fail.
(5) On a day when the skies were ashen from the smoke of distant wildfires, Chase Hurley kept his eyes trained on the slower-moving disaster at ground level: collapsing levees, buckling irrigation canals, water rising up over bridges and sloshing over roads.
(6) Residents in flooded towns have worked desperately to build sandbag levees in the hope of holding back the rising waters.
(7) "I think what we are seeing along the Mississippi is all of those things: climate change, bad planning, bad development and inappropriate levees."
(8) A levee up to 20ft high would guard part of Staten Island and dunes would be built to strengthen the city's Atlantic shoreline.
(9) Gonadotropin leves were studied in 111 postmenopausal women to determine if weight loss and cachexia could similarly affect gonadotropin function.
(10) An estimated 80% of New Orleans , much of which lies below sea level, was flooded in the storm and from levee breaches that followed.
(11) Red cell phosphoribosylpyrophosphate leve,ls were not changed by the therapy.
(12) The system of levees cut off the river from the delta, choking off the sediment needed to shore up the coast.
(13) After the evacuation of mole the serum level of these glycoproteins decreased, the leve of hCG-alpha declined more rapidly than hcg.
(14) The procedure by which the plans were developed consisted of: 1) conventional larval sampling by dipping along rice field levees that divided each field into pans; 2) counting the number of 2nd through 4th instar larvae observed in two dips taken at each sampling location; and 3) determination of the appropriate statistical parameters from which probability curves, number of samples required, and cumulative larval totals for specific sampling plans could be derived.
(15) Apparently and excess of iodide depressed the capacity of perchlorate to influence its concentration in the gland, and thereby the process of iodine organification and of the thyroid hormone secretion maintained at the optimal leve.
(16) This dose did not depress to a significant degree the white blood cell count, red blood cell count, hemoglobin leve., hematocrit value, or the peripheral differential blood counts after 14 daily applications.
(17) In Study 2, the leve of Process S (at 2400 h prior to an 8-h sleep episode) was varied by studying subjects when they had not napped or had taken 2-h naps beginning at either 1000 or 1900 h. As predicted by the model, SWS varied reliably depending on the level of S at bedrest, as did indices of sleep continuity at night.
(18) In June 2004, the corps' project manager, Al Naomi, went before a local agency, the East Jefferson Levee Authority, and requested $2m for "urgent work" that Washington was now unable to pay for.
(19) "We have a one-size-fits-all military model that is out of date – building levees – when we should be managing water."
(20) In patients treated with antihypertensive drugs the plasma renin leve often is the result of opposing influences.