What's the difference between fuming and hydrazine?
Fuming
Definition:
(p. pr. & vb. n.) of Fume
(a.) Producing fumes, or vapors.
Example Sentences:
(1) Peak Expiratory Flow and Forced Expiratory Mean Flows in the ranges 0-25%, 25-50% and 50-75% of Forced Vital Capacity were significantly reduced in animals exposed to gasoline exhaust fumes, whereas the group exposed to ethanol exhaust fumes did not differ from the control group.
(2) Poor workplace health and safety, inadequate toilet facilities and dangerous fumes from mosquito fogging that led to one asylum seeker with asthma collapsing were all raised as concerns by Kilburn, although he stressed that he believed G4S management and expatriate G4S staff acted appropriately.
(3) Cadmium fumes and compounds have been found to be instrumental in the development of some cases of chronic bronchitis and emphysema in Sweden.
(4) It is referred to an additional potential endangering by gun fumes and the measures for the protection of labour which are to be derived from this.
(5) The prevalence of occupational dust exposure was 32%, and gas or fume exposure, 19%.
(6) Hydrogen sulfide poisoning from inhalation of roofing asphalt fumes is a rare but devastating injury.
(7) Where efficient fume extraction was in use, levels of air contaminants were lower than with natural ventilation.
(8) Using field observations, modelling techniques and theoretical analysis, parameters describing the performance and collection efficiency of large industrial canopy fume hoods are established for, a) steady state collection of fume and b) collection of plumes with fluctuating flowrates.
(9) In January, Boehner announced that Netanyahu had accepted an invitation to address a joint session of Congress – a move that left the White House fuming, since Obama was not consulted about the visit.
(10) Some abnormalities (increased VC, decreased RV) are typical of diving activities, but the deterioration of effort-dependent expiratory flow values and alveolar-capillary diffusion must be ascribed to specific nuisances (fumes, polluants, toxic substances) associated with fireman's activities.
(11) Subjects with gas or fume exposure had relative odds of symptoms between 1.27 and 1.43 when compared with unexposed subjects.
(12) Black Cats manager Gus Poyet fumed: “If you ask every single manager we want to talk about football, but we always find ourselves talking about a decision.
(13) The highest fume concentration on the horizontal was shown in the fumes collected directly above the arc.
(14) The tea-shop owner’s home is just a couple of hundred metres from a huge, ageing coal-fired power plant in central Turkey , whose red-and-white chimneys spew dirty fumes.
(15) A total of 69 male subjects occupationally exposed to cadmium fumes in a factory producing silver-cadmium-copper alloys for brazing, were subjected to lung function tests, including ventilation (FVC and FEV1), residual volume (RV) and alveolar-capillary diffusion capacity (TLCO and KCO).
(16) But after more than half a million people signed an Avaaz petition calling for Ca ñete’s rejection , environmentalists were left fuming at a perceived democratic deficit in the EU.
(17) Two individuals developed an asthma-like illness after a single exposure to high levels of an irritating aerosol, vapor, fume, or smoke.
(18) Exposures to various gas fumes and vapors accounted for the largest percentage of all hospitalizations (38%), and the second largest percentage of deaths (20.6%).
(19) Data collected on various types of filters (dust and mist; dust, fume, and mist; paint, lacquer, and enamel mist; and high efficiency) challenged with a worst case-type sodium chloride (NaCl) and dioctyl phthalate (DOP) aerosol are presented.
(20) All four gave immediate bronchial reactions to inhalation of the fumes, varying from one breath to 3 min of exposure.
Hydrazine
Definition:
(n.) Any one of a series of nitrogenous bases, resembling the amines and produced by the reduction of certain nitroso and diazo compounds; as, methyl hydrazine, phenyl hydrazine, etc. They are derivatives of hydrazine proper, H2N.NH2, which is a doubled amido group, recently (1887) isolated as a stable, colorless gas, with a peculiar, irritating odor. As a base it forms distinct salts. Called also diamide, amidogen, (or more properly diamidogen), etc.
Example Sentences:
(1) The first comprises N1-[4-(4-alkyloxybenzamido)benzoyl]-N2-substituted alkylidene hydrazine, the second involves 1-[4-(4-alkyloxybenzamido)benzoyl]-4-alkyl, aryl, or aralkyl-3-thiosemicarbazides, and the third includes 1-substituted-5-[4-(4-alkyloxybenzamido)phenyl]-1,3,4-triazole-2-t hione.
(2) High resolution proton NMR spectroscopic analysis of urine also revealed resonances from several metabolites of hydrazine, an N-acetylcysteine conjugate of allyl alcohol, and acetamide as a metabolite of thioacetamide after dosing with the respective compounds.
(3) When hydrazine was used as the electron donor, no substrate inhibition was observed, suggesting that the inhibition resulted from reductant limitation.
(4) The hydrazine moiety liberated from isoniazid is primarily acetylhydrazine, and studies in animals show this metabolite to be converted to a potent acylating agent that produces liver necrosis.
(5) The weekly administration of 1,2-dimethyl-hydrazine (DMH) by subcutaneous injection for a period of 16-20 weeks is a well known procedure for producing colonic tumors in mice and rats.
(6) The compounds were obtained by condensation of appropriate hydrazines with thiophene 2-carboxaldehyde (series 1), thiophene 3-carboxaldehyde (series 2), and 5-nitrothiophene-2-carboxaldehyde (series 3).
(7) After inhibition of monoamine synthesis by N'-(DL-SERYL)-N2-(2, 3, 4-trihydroxybenzyl)hydrazine, substance P significantly accelerated the disappearance of dopamine, noradrenaline and 5-hydroxytryptamine.
(8) Embryotoxicity has been demonstrated at very high exposures but not at occupationally encountered levels for hydrazine and unsymmetrical dimethylhydrazine.
(9) The characterization of the various disaccharides by Smith periodic acid degradation and glycosidase digestions was facilitated by the preparation and thin-layer chromatographic resolution of the complete series of monosulfated derivatives of anhydromannitol and anhydrotalitol; the sulfate esters were shown to be stable to both the hydrazine and nitrous acid treatments.
(10) This inactivation was very rapid but reversible, with regeneration of enzyme activity being spontaneous and hydrazine-accelerated, suggestive of the intermediacy of a stable acyl enzyme.
(11) Urinary excretion (0-24 h) of hydrazine and its metabolite acetylhydrazine were determined employing nitrogen-phosphorus detection of the adducts utilising a novel internal standard, pentafluorophenylhydrazine, the adduct of which structurally resembles DFBA.
(12) Modification of uridines with hydrazine has no effect on interaction with the enzyme, except for one uridine near the 3'-end of tRNA(Gly).
(13) With a specific gas chromatographic assay procedure, the amount of hydrazine in the 0- to 24-hr urine was determined in patients treated with various doses of hydralazine.
(14) A chromophoric hydrazide, 4'-N,N-dimethylamino-4-azobenzene sulfonyl hydrazide (DABS-hydrazide), was prepared from 4'-N,N-dimethylamino-4-azobenzene sulfonyl chloride by reaction with hydrazine.
(15) A GC procedure for the simultaneous determination of hydrazine and benzylhydrazine in isocarboxazid raw material and tablet formulations has been developed.
(16) Hydrazine sulfate compared with placebo addition to chemotherapy resulted in significantly greater caloric intake and albumin maintenance (P less than .05).
(17) The synthesis was achieved by reacting 3-benzylthiazolidin-2-one-4-thione with its 4-hydrazone derivative to give N,N'-bis(3-benzyl-2-oxo-4-thiazolidinylidene)hydrazine, which was subjected to dibromination followed by reaction with various primary aromatic amines.
(18) This study has demonstrated that the nasal respiratory epithelia of rats and hamsters are the most sensitive tissues to the tumorigenic action of hydrazine following inhalation exposures.
(19) In the study in mice described below, which was carried out according to modern guidelines, no carcinogenic action was detected for hydrazine even after the administration of toxic doses over the entire lifespan of the animals.
(20) It is concluded that hydrazine acts to produce and altered base, possibly N(4)-aminocytosine, that produces mutations by mispairing at replication rather than by error-prone repair.