(a.) Pertaining to, or derived from, iron; -- especially used of compounds of iron in which the iron has its lower valence; as, ferrous sulphate.
(1) The free radical scavengers mannitol, thiourea, benzoate, and 4-methylmercapto-2-oxobutyrate protected either native cells exposed to H2O2 or pretreated hepatocytes exposed to H2O2 and given ferric or ferrous iron.
(2) The pH dependence of this spectral change gave a sigmoidal curve fitted well to a theoretical curve of a cooperative release of two protons with a pK value of 7.5, indicating the existence of the acidic and alkaline forms of the ferrous CO enzyme.
(3) Iron presented as inorganic ferric or ferrous salts may also be absorbed, though the more soluble ferrous salts are adsorbed much more rapidly.
(4) The oxygen-free radical scavengers thiourea, mannitol and catalase prevented toxicity mediated by ferrous ammoniumsulphate but not by ferrous ascorbate (molar ratio of 1:20).
(5) One was identified as viridomycin A, the ferrous chelate of 4-hydroxy-3-nitrosobenzaldehyde; the second (actinoviridin A) was the corresponding carboxylic acid chelate and the third (viridomycin E) was a hybrid chelate containing both the aldehyde and acid ligands.
(6) The ferrous iron chelator, bipyridyl, enhanced the production of chemiluminescence catalyzed by FeSO4 and ferritin but had little effect on the K3Fe(CN)6-catalyzed reaction.
(7) Under aerobic conditions, adriamycin-Fe3+ caused a reduction of cytochrome c and ferrous iron formed spontaneously.
(8) EPR studies of intact cells grown photoheterotrophically reveal that in situ cytochrome c' exists largely in the ferrous state.
(9) Ferric ammonium citrate, ferrous sulfate and ferrous gluconate were all found effective in preventing rat anemia when added to their drinking water.
(10) Of several heavy metal ions, such as Fe3+, Fe2+, Co2+, Ni2+, Cu2+ and Zn2+, tested for supplementation of the alkaline growth deficiency, only iron, either added in the ferrous or ferric form, was able to restore cellular growth.
(11) Prolonged continuous cultivation on tetrathionate or thiosulfate did not affect the ability of the organism to grow subsequently in ferrous iron medium.
(12) Fatale haemoptysis occurred as a result of circumferential caustic erosion to the right intermediate bronchus caused by a tablet of ferrous sulphate which remained in contact for 4 days.
(13) Ferrous ions stimulate NAD(P)H oxidation, which is again inhibited by SOD and catalase.
(14) Bio-availability and therapeutic efficacy of two oral ferrous preparations in the form of effervescent tablets (A and A*) were compared.
(15) The reaction of ferrous bleomycin with dioxygen is reexamined to clarify whether radical species derived from molecular oxygen are generated.
(16) The hydroxylase was a monomer with a Mr of 35,000-38,000. alpha-Ketoglutarate, ferrous iron, and molecular oxygen were required for the enzyme activity.
(17) The spontaneous activity of 24 cells was reduced by ferrous ions.
(18) It was classified as a metallo-protease by virtue of its inactivation by metal-ion chelators and reactivation by ferrous ions.
(19) Regulation by iron occurs at the transcriptional level and is mediated by a ferrous iron binding protein designated Fur (ferric uptake regulation).
(20) The anticonvulsant effects of D-alpha-tocopherol (vitamin E) were studied in 4 animal seizure models: the Metrazol threshold model (MET), the maximal electroshock model (MES), the kindling model (well-established seizures), and the ferrous chloride model.
(a.) Made or consisting of iron; partaking of iron; iron; as, irony chains; irony particles.
(a.) Resembling iron taste, hardness, or other physical property.
(n.) Dissimulation; ignorance feigned for the purpose of confounding or provoking an antagonist.
(n.) A sort of humor, ridicule, or light sarcasm, which adopts a mode of speech the meaning of which is contrary to the literal sense of the words.
(1) And the irony of it is it doesn't interest me at all.
(2) The irony of this type of self-manipulation is that ultimately the child, or adult, finds himself again burdened by impotence, though it is the impotence of guilt rather than that of shame.
(3) The irony is that we have more media than ever before, but less insight.
(4) Richard Aylard, director of sustainability and external affairs for Thames Water, said the firm was aware of the irony that heavy rain had set in after the hosepipe ban was announced.
(5) One of the terrible ironies of the Iraq War is that President Bush used the threat of nuclear terrorism to invade a country that had no active nuclear program.
(6) That he was able to keep his secret treasures here, not in some remote corner of the globe but in the centre of the city that gave birth to the National Socialist movement, is both extraordinary and not short of a certain dark irony.
(7) He is wary of pretension, alive to all shades of irony.
(8) There was a thing at the time that said basically: 'Oh, the working classes obviously don't understand this is irony, so Harry's had to kill him off.'
(9) But the character – compounded of piercing sanity and existential despair, infinite hesitation and impulsive action, self-laceration and observant irony – is so multi-faceted, it is bound to coincide at some point with an actor’s particular gifts.
(10) The irony of her image being exchanged in return for commodities in the future,” she said, “seems to recall the way that actual slaves’ bodies were serving as currencies of exchange.” Larson arrived at a different conclusion about the honor.
(11) In the end, though, practical rethinkers have to get beyond the delights of irony and paradox in which Glasman too often wraps himself.
(12) There is a perverse irony that people who have cracked their iPhones are now being targeted by hackers.
(13) The irony of this is that today, when I was getting all of this horrible antisemitic shit that I’ve only ever seen in Russia, I was reminded that 26 years ago today my family came to the US from Russia.
(14) The irony is an uncomfortable one for policymakers.
(15) Because of our slightly younger average age and city location, we were supposedly one of the "new wave" WIs that had started springing up in the years before – groups that rejected crochet and did more modern activities, often with more than a tinge of irony.
(16) White House officials said that Obama, who was planning to work on the final draft of his speech on his flight from Washington to Oslo, would directly address the issue of the irony of being awarded the peace prize while escalating the war.
(17) Labour's pensions spokesman, Gregg McClymont, said: "The irony is that there are lots of good pension schemes out there that are being undermined by what is going on.
(18) She is being helpful, no doubt about that, but there is an unconscious note of power play – not to mention the sweet irony of my having provoked her into pulling not one but two phones out of her bag within seconds of us sitting down.
(19) "The irony of welcoming to the London 2012 Olympic Games an individual who is alleged to have led an organised and brutal repression of athletes because they peacefully exercised their internationally recognised right to freedom of expression and association during Bahrain's Arab Spring would be a blow to all athletes around the world, and irreconcilable with the UK commitment to human rights and claimed support to peaceful pro-democracy movements," the ECCHR said.
(20) A h, the irony of white people complaining about being interrupted by black people.