What's the difference between substance and whitening?

Substance


Definition:

  • (n.) That which underlies all outward manifestations; substratum; the permanent subject or cause of phenomena, whether material or spiritual; that in which properties inhere; that which is real, in distinction from that which is apparent; the abiding part of any existence, in distinction from any accident; that which constitutes anything what it is; real or existing essence.
  • (n.) The most important element in any existence; the characteristic and essential components of anything; the main part; essential import; purport.
  • (n.) Body; matter; material of which a thing is made; hence, substantiality; solidity; firmness; as, the substance of which a garment is made; some textile fabrics have little substance.
  • (n.) Material possessions; estate; property; resources.
  • (n.) Same as Hypostasis, 2.
  • (v. t.) To furnish or endow with substance; to supply property to; to make rich.

Example Sentences:

  • (1) No differences between the two substances were observed with respect to side effects and general tolerability.
  • (2) Modulation of the voltage-gated K+ conductance in T-lymphocytes by substance P was examined.
  • (3) During the digestion of these radiolabeled bacteria, murine bone marrow macrophages produced low-molecular-weight substances that coeluted chromatographically with the radioactive cell wall marker.
  • (4) Intracellular localization of the labeled substance in the tumor tissue was examined autohistoradiographically.
  • (5) Substances with a leaving group at the C-3 position form unsaturated conjugated cyclic adducts and are mutagenic only in the His D3052 frameshift strains with an intact excision repair system (no urvA mutation).
  • (6) A substance with a chromatographic mobility of Rf = 0.8 on TLC plates having an intact phosphorylcholine head group was also formed but has not yet been identified.
  • (7) Serum pepsinogen 1, serum gastrin, ABO blood groups, secretor status of ABH blood group substances and behavioral factors were studied in 15 patients with duodenal ulcer and 61 their relatives affected and unaffected to duodenal ulcer.
  • (8) Agarose-albumin beads may be useful for removing protein-bound substances from the blood of patients with liver failure, intoxication with protein-bound drugs, or specific metabolic deficits.
  • (9) Urine tests in six patients with other kidney diseases and with uraemia and in seven healthy persons did not show this substance.
  • (10) Substance P, a potent vasodilating peptide, seems to be released from trigeminal nerve endings in response to nervous stimulation and is involved in the transmission of painful stimuli within the periphery.
  • (11) Regulators concerned about physician behavior and confronted by demands of nonphysicians to prescribe controlled substances may find EDT a good solution.
  • (12) These results are discussed in the light of the mode of action of the substances used.
  • (13) Most cis AB sera have anti-B activity, essentially at 4 degrees C. In saliva A and H substances are found in normal amounts but B substance is only evidenced by inhibition of autologous cells agglutination.
  • (14) We have investigated some of the factors which affect the retention times of these substances in reversed-phase HPLC on columns of 5-micron octadecylsilyl silica.
  • (15) The data indicate that adult neurons with an intrinsic ability to regenerate axons can respond to substances with neurotrophic or neurite-promoting activities in tissue cultures.
  • (16) The authors describe the role played by these substances in the pathogenesis of inflammations, their importance in the regulation of intraocular pressure and in the development of cystoid macular oedema.
  • (17) They were more irregularly curved and consisted of various substances.
  • (18) We examined 10 life areas clustered around the general categories of "substance use," "social functioning," and "emotional and interpersonal functioning."
  • (19) In certain cases, the effects of these substances are enhanced, in others, they are inhibited by compounds that were isolated from natural sources or prepared by chemical synthesis.
  • (20) The following possible explanations were discussed: a) the tested psychotropic drugs block prostaglandin receptors in the stomach; b) the test substances react with prostaglandin in the nutritive solution; c) the substances stimulate metabolic processes in the stomach wall that break down prostaglandin.

Whitening


Definition:

  • (p. pr. & vb. n.) of Whiten
  • (n.) The act or process of making or becoming white.
  • (n.) That which is used to render white; whiting.

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.

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