(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.
Whiten
Definition:
(v. i.) To grow white; to turn or become white or whiter; as, the hair whitens with age; the sea whitens with foam; the trees in spring whiten with blossoms.
(v. t.) To make white; to bleach; to blanch; to whitewash; as, to whiten a wall; to whiten cloth.
Example Sentences:
(1) The full chemical names of the fluorescent whitening agents (FWAs) investigated in this study are listed below.
(2) These results would suggest that speech intelligibility is reduced by whitening and peak clipping when more than one talker is present.
(3) In a letter to the Glasgow Herald , Kearney said: "In much the same way as America's black citizens in an earlier era were urged to straighten their hair and whiten their complexions to minimise differences with the white majority, many will surely urge Scottish Catholics to stop sending their children to Catholic schools or making public or overt declarations of faith."
(4) V-K-H syndrome is a chronic bilateral exudative uveitis associated with whitening of the hair and eyelashes and varying signs of meningeal irritation.
(5) In contrast, the continuous-wave laser was observed videographically to produce prominent tissue whitening and puckering, seen histologically as convolution of the epithelium and coagulation of stroma, which was called a shrinkage-like lesion.
(6) The coating on the shell responsible for whitening was deposited during the hour prior to oviposition.
(7) Should such removal provide the additional effect of "whitening" the tooth surface, an additional cosmetic benefit would be provided.
(8) Whenever there's an alternative popular movement that grips the national imagination, left-ish commentators and journalists fight whitened tooth and manicured nail for public alliance to this season's worthy cause of resistance.
(9) We found that hydrogen peroxide bleached more quickly than carbamide although, after a period of six weeks, the results were the same as far as whitening was concerned.
(10) The performances of some leading commercial whiteners are compared and their interactions with dyes, fillers and stabilizers are discussed.
(11) The presence of clinically detectable areas of decalcification (observable as whitened areas) following the removal of orthodontic appliances is well recognized.
(12) The major factor responsible for whitening is confirmed as a high water temperature irrespective of the presence of the denture cleaning agent.
(13) In hand washing tests with detergents containing fluorescent whitening agents (FWAs), the amounts of whitener left on both hands were determined by TLC spectrophotometry: they varied from 0.06 mg to 0.17 mg. Whiteners of different chemical constitutions behaved in a very similar manner.
(14) A cotton-substantive, anionic, fluorescent whitening agent manufactured by several suppliers under various trade names e.g.
(15) The ophthalmoscopic changes consisted of initial whitening and subsequent but persistent depigmentation of the foveola.
(16) Consonant-nucleus-consonant monosyllabic words were filltered such that each spectral component had equal energy (i.e., "whitened") and peak clipped in one of four ways: minimal, 20, 30, and 40 dB of clipping.
(17) Experimental details and examples of a "chromatographic program" for testing the major fluorescent whitening agent (FWA) types and material samples containing FWAs are described.
(18) Isolates are employed as whipping agents and coffee whiteners.
(19) At higher concentrations, clinical and histologic changes were seen in proportion to the concentration and included focal whitening, edema, vitreous haze, vascular abnormalities, and retinal necrosis at the highest doses.
(20) In fact, under some conditions whitening and peak clipping may slightly enhance intelligibility.