(a.) To make white, or whiter; to remove the color, or stains, from; to blanch; to whiten.
(v. i.) To grow white or lose color; to whiten.
Example Sentences:
(1) The transient was characterized by bleaching in the 550-585-nm regions within 6 ps and recovery in approximately 20 ps.
(2) All recombinants were found to be photochemically active, in that optical bleaching produced a temperature- and lipid chain-length-dependent mixture of species absorbing at 480 and 380 nm.
(3) Lesions in either the ventral subiculum or the anterolateral part of the amygdalohippocampal area caused bleaching in the ventromedial hypothalamic nucleus.
(4) All are satisfied by [Formula: see text], where N is the size of rod signal, constant for threshold; theta, theta(D) are steady backgrounds of light and receptor noise; varphi is the threshold flash with sigma a constant of about 2.5 log td sec; B the fraction of pigment in the bleached state.
(5) A simple method for distinction between RNA- and DNA-containing structures in aldehyde- and osmiumtextroxide-fixed electron microscopic autoradiographs (or ordinary thin sections) is described: the developer and the acetic acid used for processing autoradiographs extract selectively uranium acetate from DNA containing-structures which, after staining with lead citrate, leads to a characteristically 'bleached' appearance of the DNA.
(6) Sulphite bleached the flavin of cellobiose oxidase, but gave no reaction with the 31 kDa haem protein, suggesting an absence of flavin.
(7) A new, terrible curse that comes on top of the bleaching, the battering, the poisoning and the pollution.
(8) We have tried to discover whether bleaching raises the threshold by desensitizing the rods, or (like backgrounds) by attenuating their signals.
(9) Additionally, reconstitution of a distinct absorption band, centered around 540 nm, was achieved by addition of exogenous 9-cis-retinal to bleached, isolated eyespot apparatuses.
(10) But the Guardian can now reveal Australia will also need to report on how it is dealing with the current bleaching, where almost a quarter of the coral on the reef has been killed.
(11) Measurements were made of the time course and amplitude of the change in real part of admittance, DeltaG, of a suspension of frog rod outer segments, following a flash of light bleaching about 1% of the rhodopsin content of the rods.
(12) Concentration gradients of metarhodopsin along the lengths of microvilli were produced by local bleaches, accomplished by irradiation with small spots of orange light at pH 9 in the presence of glutaraldehyde or formaldehyde.
(13) Bleaching a few per cent of the rhodopsin molecules of a rod suspension induces a 60% decrease achieved in less than 12 sec.
(14) Consequently, the rate of the bleaching is strongly dependent on the permeability of the thylakoid to the available anion.
(15) Incidentally, it’s the algae that give the coral its colour; and so when it’s ejected, the coral takes on a ghostly white hue, giving rise to the term “bleaching”.
(16) A suggested method for internal bleaching and restoring the access cavity is presented.
(17) Rod outer segment membranes and reassociated stripped disc membrane samples containing divalent cations showed similar phosphodiesterase activities in response to low fractional rhodopsin bleaches (e.g.
(18) Facebook Twitter Pinterest Coral bleaching on the Great Barrier Reef worse than for decades The photos were taken from around Lizard Island by Lyle Vale from Coral Watch at the University of Queensland .
(19) The permethylated rhodopsin thus formed is active toward bleaching, regeneration with 11-cis-retinal, and the activation of the GTPase (G protein) when photolyzed.
(20) When the acyl-CoA dehydrogenases were reacted with moderate excesses of acyl-CoA substrates in D2O in the absence of an electron acceptor, maximum bleaching of the FAD absorbance and the appearance of the long wavelength absorbance, attributed to a charge transfer complex, were observed.
Leach
Definition:
(n.) See 3d Leech.
(n.) A quantity of wood ashes, through which water passes, and thus imbibes the alkali.
(n.) A tub or vat for leaching ashes, bark, etc.
(v. t.) To remove the soluble constituents from by subjecting to the action of percolating water or other liquid; as, to leach ashes or coffee.
(v. t.) To dissolve out; -- often used with out; as, to leach out alkali from ashes.
(v. i.) To part with soluble constituents by percolation.
(n.) See Leech, a physician.
Example Sentences:
(1) Updated at 2.53pm GMT 2.48pm GMT 'Tricky job, well done' - IoD Graeme Leach , chief economist at the Institute of Directors, said: This was a tricky job, well done by George Osborne.
(2) In this study two soft coals obtained from mines in which workers had high and low incidences of CWP were leached with aqueous base and acid to remove their acidic and basic components.
(3) Leaching the lyophilized mitochondrial fraction with either hexane or acetone increased substantially the yields of the metabolites.
(4) Worse, the CFL contains mercury, which according to the EU's own regulations cannot be discarded in ordinary waste, lest the mercury leach into the water supply.
(5) A steady decline in the incidence with an increase in the preponderance of male cases was observed toward the west, reaching the lowest figures (male: 17.2 cases per 100,000 population; female: 5.5 per 100,000) in the Caspian rain belt, with its heavily leached soils and somewhat subtropical characteristcs.
(6) In spite of the leaching and contamination effects described in the literature--even for chrysotile fibrils taken from the lung, elemental spectra do not differ essentially from the asbestos standard.
(7) Contamination of cells by impurity atoms that may leach from electrodes was measured by atomic-absorption spectrophotometry and found to be negligible.
(8) "The UK economy faces a difficult period over the coming years, but if the government holds firm with the implementation of the spending review, long-term growth and employment prospects will be significantly improved," said Graeme Leach, chief economist and director of policy at the IoD.
(9) Once the pollution has ceased, it would appear that the arsenic is rapidly leached away, with a return to ecological normality this recovery was surprisingly rapid and complete.
(10) The surface is stabilized, i.e., leaching is retarded, by the rapid Ca,P-accumulation within the silica structure before apatite crystals are observed on the surface.
(11) In Dr Leach's book, a 13-year-old talking about the fall-out from her parents' break-up says: "I felt I'd vanished."
(12) Some cells, however, showed evidence that intracytoplasmic materials had been leached from the cells.
(13) Diethyl phthalate in the desiccant in 100-count bottles of brand A levothyroxine sodium tablets appeared to have leached into the tablets.
(14) With the leach tank incident in December there were questions raised about our environmental performance.
(15) The tendency of composites to leach filler elements almost linearly with time, could be used to generate a constant release rate of such therapeutic elements over time.
(16) Dissolution is incongruent, probably because most of the leached species can derive both from the matrix (polysalt gel) and the partly reacted glass particles.
(17) There was no evidence of energy-dependent extrusion of water or ions from either equilibrated rat or rabbit renal cortical slices leached at 0.5 degrees C and then reincubated at 25 degrees C in choline Ringer.7.
(18) Leach has also just been appointed advisory chair of next year's Guardian Edinburgh International Television Festival, reinforcing the sense that she and Twofour have earned their place at the TV industry's top table.
(19) Upon harvest (three months after application), a total of 49.2% of the applied radiocarbon was recovered: 2.0% in the plants, 46.9% in the soil, and 0.3% in the leaching water (depth greater than 50 cm); less than 0.1% was in the grains (0.464 ppm).
(20) The power requirements for initial leaching conditions were also calculated.