(n.) A compound radical, or unsaturated group, HO, consisting of one atom of hydrogen and one of oxygen. It is a characteristic part of the hydrates, the alcohols, the oxygen acids, etc.
Example Sentences:
(1) These membrane perturbation effects not observed with bleomycin-iron in the presence of a hydroxyl radical scavenger, dimethyl thiourea, or a chelating agent, desferrioxamine, were correlated with the ability of the complex to generate highly reactive oxygen species.
(2) This stimulation is mediated by one receptor with an apparent affinity of 3.3 X 10(-6) M. The hydroxyl group in the para position on phenylethanolamine was absolutely necessary to obtain an agonist whereas the meta hydroxyl group or the presence of a catechol almost suppressed the activity.
(3) The coatings formed contain only stable chemical bonds (e.g., C-C, C-O-C), and easily-derivatized hydroxyl moieties.
(4) The efficacy of both PCBOH I and III derivatives required the presence of a hydroxyl moiety and increased directly with the degree of chlorination.
(5) tert-Butyl hydroaminoxyl is detected as a degradation product of the hydroxyl adduct from all spin traps.
(6) A method for the introduction of side chains containing isonitrile (isocyanide, functional group) on the backbone of polysaccharides and other hydroxylic polymers was developed.
(7) P-1894B dose dependently reduced the hydroxylation of peptidyl proline in the fibrotic liver.
(8) The 1-carboxyalkyl nicotinamide----dihydronicotinamide redox pair is a new type of brain-enhanced chemical delivery system for drugs containing hydroxyl groups.
(9) Both adiphenine.HCl and proadifen.HCl form more stable complexes, suggesting that hydrogen bonding to the carbonyl oxygen by the hydroxyl-group on the rim of the CD ring could be an important contributor to the complexation.
(10) Enzyme-inhibiting ability for individual alkylphenols can be estimated based on the quantitative structure-activity relationship developed by Dewhirst (1980) and is a function of the free hydroxyl group, electron-donating ring substituents, and hydrophobic aromatic ring substituents.
(11) Samples of rockwool and glass fibre were compared with chrysotile fibres for their capacity to hydroxylate 2-deoxyguanosine to 8-hydroxydeoxyguanosine, a reaction that is mediated by formation of hydroxyl radicals.
(12) aldrin epoxidation, ethylmorphine demethylation, and benzo(a)-pyrene hydroxylation were induced under these conditions.
(13) Cytochrome P-450 IVA1 (or a very closely related isoenzyme in the same gene family) was a major constitutive haemoprotein in rat kidney microsomes and actively supported the omega-hydroxylation of lauric acid.
(14) In vitro sensitizing activities were correlated to the promotion efficiency of radiolytic hydroxylation of thymine to thymine glycol and to the one-electron reduction potential of a variety of fluorinated and non-fluorinated nitroazole derivatives.
(15) Ring hydroxylated saterinone and three metabolites that were not identified made up about 1-4% each.
(16) Nafimidone and other 1-imidazoles were shown to be potent inhibitors of phenytoin p-hydroxylation in rat hepatic microsomes, being very effective even at submicromolar concentrations.
(17) Only pretreatment of rabbits with rifampicin, which induces cytochrome P-450 form 3c (P-450IIIA6), significantly increased the microsomal hydroxylation of tolbutamide.
(18) Synthesis with denatured DNA as template presumably proceeds from 3'-hydroxyl termini formed at loop-back regions since the synthesized DNA product and template are covalently linked.
(19) Here we report that phenol hydroxylation to hydroquinone is also catalyzed by human myeloperoxidase in the presence of a superoxide anion radical generating system, hypoxanthine and xanthine oxidase.
(20) Mössbauer spectroscopy has been used to study the heme iron in various states of cytochrome P450cam from the camphor-hydroxylating system of the bacterium Pseudomonas putida.
Tie
Definition:
(v. t.) A knot; a fastening.
(v. t.) A bond; an obligation, moral or legal; as, the sacred ties of friendship or of duty; the ties of allegiance.
(v. t.) A knot of hair, as at the back of a wig.
(v. t.) An equality in numbers, as of votes, scores, etc., which prevents either party from being victorious; equality in any contest, as a race.
(v. t.) A beam or rod for holding two parts together; in railways, one of the transverse timbers which support the track and keep it in place.
(v. t.) A line, usually straight, drawn across the stems of notes, or a curved line written over or under the notes, signifying that they are to be slurred, or closely united in the performance, or that two notes of the same pitch are to be sounded as one; a bind; a ligature.
(v. t.) Low shoes fastened with lacings.
(v. t.) To fasten with a band or cord and knot; to bind.
(v. t.) To form, as a knot, by interlacing or complicating a cord; also, to interlace, or form a knot in; as, to tie a cord to a tree; to knit; to knot.
(v. t.) To unite firmly; to fasten; to hold.
(v. t.) To hold or constrain by authority or moral influence, as by knotted cords; to oblige; to constrain; to restrain; to confine.
(v. t.) To unite, as notes, by a cross line, or by a curved line, or slur, drawn over or under them.
(v. t.) To make an equal score with, in a contest; to be even with.
(v. i.) To make a tie; to make an equal score.
Example Sentences:
(1) Behind her balcony, decorated with a flourishing pothos plant and a monarch butterfly chrysalis tied to a succulent with dental floss, sits the university’s power plant.
(2) Theresa May signals support for UK-EU membership deal Read more Faull’s fix, largely accepted by Britain, also ties the hands of national governments.
(3) The quantity of social ties, the quality of relationships as modified by type of intimate, and the baseline level of symptoms measured five years earlier were significant predictors of psychosomatic symptoms among this sample of women.
(4) They are just literally lying.” In August Microsoft severed its ties, saying Alec’s stance on climate change and several other issues “conflicted directly with Microsoft’s values”.
(5) There is a gradual loosening of the adolescent's emotional dependence on her parents and a transfer of dependency ties to peers.
(6) We have reported on a simple and secure method of tying up hair during transplantation surgery for alopecia.
(7) Maybe it’s because they are skulking, sedentary creatures, tied to their post; the theatre critic isn’t going anywhere other than the stalls, and then back home to write.
(8) Beijing has no interest in seeing strained ties affecting development plans either.” The Moranbong band was founded by Kim Jong-un , with each member reportedly selected by a leader eager to make his mark on the cultural scene.
(9) Two years ago I met a wonderful man and we now feel it’s time to tie the knot.
(10) The glory lay in the defiance, although the outcome of the tie scarcely looks promising for Arsenal when the return at Camp Nou next Tuesday is borne in mind.
(11) Alec played a role in the resignation of the UK defence secretary Liam Fox last year over his close ties to his friend Adam Werritty.
(12) The Dodgers and Braves are tied 1-1 in the third inning and the Detroit Tigers and Oakland A's ALDS will start at 9:37pm EST.
(13) And if that ties up with one another then Oscar has got a major problem."
(14) Los Angeles were relentless in their vicious pursuit of a game-tying goal on Wednesday, bidding to send Game 4 into overtime.
(15) "This is the guy we've all seen in Borders or HMV on a Friday afternoon, possibly after a drink or two, tie slightly undone, buying two CDs, a DVD and maybe a book - fifty quid's worth - and frantically computing how he's going to convince his partner that this is a really, really worthwhile investment."
(16) The levy would also confirm the dramatically changing nature of Pakistan's ties with its western partners, from a strategic alliance to a transactional relationship, with deep suspicions on both sides.
(17) Trade unions criticised the corporation’s 1% offer, tied to a minimum of just £390, for those staff earning under £50,000, calling it “completely unacceptable” .
(18) Unlike most CDU politicians, he keeps close ties to the British Conservatives despite their differences on Europe .
(19) Last week, the army major who ordered Dar to be tied to the vehicle was awarded a commendation for his counter-insurgency work in the region.
(20) He added, however, that the US would "remain the world's leading military and economic power for the next two to three decades" and he ruled out a radical shift in bilateral ties.