What's the difference between hydrogen and tartar?
Hydrogen
Definition:
(n.) A gaseous element, colorless, tasteless, and odorless, the lightest known substance, being fourteen and a half times lighter than air (hence its use in filling balloons), and over eleven thousand times lighter than water. It is very abundant, being an ingredient of water and of many other substances, especially those of animal or vegetable origin. It may by produced in many ways, but is chiefly obtained by the action of acids (as sulphuric) on metals, as zinc, iron, etc. It is very inflammable, and is an ingredient of coal gas and water gas. It is standard of chemical equivalents or combining weights, and also of valence, being the typical monad. Symbol H. Atomic weight 1.
Example Sentences:
(1) The hypothesis that proteins are critical targets in free radical mediated cytolysis was tested using U937 mononuclear phagocytes as targets and iron together with hydrogen peroxide to generate radicals.
(2) It has been conformed that catalase from bovine liver eliminates only the pro R hydrogen atom from ethanol.
(3) We investigated the possible contribution made by oropharyngeal microfloral fermentation of ingested carbohydrate to the generation of the early, transient exhaled breath hydrogen rise seen after carbohydrate ingestion.
(4) Hydrogen isotope effects on these mutants indicate that MotA catalyzes proton transfer.
(5) Excessive accumulation of hydrogen ions in the brain may play a pivotal role in initiating the necrosis seen in infarction and following hyperglycemic augmentation of ischemic brain damage.
(6) Studies were conducted in isolated, buffer-perfused rat lungs to determine if prostaglandin (PG) E1 attenuated pulmonary edema provoked by hydrogen peroxide (H2O2).
(7) All N and O atoms except N(3) and O(4') participate in a three-dimensional hydrogen-bonding system.
(8) 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.
(9) Control mutant S38N has stability essentially the same as that of wild-type lysozyme but hydrogen bonding similar to that of the stabilizing mutant S38D.
(10) High intensity ultrasound also enhances the heterogeneous catalysis of alkene hydrogenation by Ni powders.
(11) An atmosphere of hydrogen eliminates this inhibition in the hydrogenase-containing T. foetus but not in E. invadens which lacks the enzyme.
(12) Vanadate-dependent oxidation of either pyridine nucleotide was inhibited by the addition of either superoxide dismutase or catalase, indicating that both superoxide and hydrogen peroxide may be intermediates in the process.
(13) Our findings suggest that (a) the inclusion of a liquid meal provides a reproducible method of measuring orocaecal transit using the lactulose hydrogen breath test, (b) rapid small bowel transit in thyrotoxicosis may be one factor in the diarrhoea which is a feature of the disease and (c) if altered gut transit is the cause of sluggish bowel habit in hypothyroidism, delay in the colon, and not small bowel, is likely to be responsible.
(14) Stepwise hydrogenation of metal tetradehydrocorrin salts (10 double bonds) yields a series of macrocycles containing 9, 8, 7, 6 and 5 double bonds and conditions necessary to obtain corrins have been established.
(15) For dipeptides containing the amino terminal residues glycine, alanine and phenylalanine, abstraction of the hydrogen from the carbon adjacent to the peptide nitrogen was the major process leading to the spin-adducts.
(16) (7) The first-order radical transformation rates are independent of the (initial) concentration of N3 or peptide and unaffected by urea (as a modifier of hydrogen bond structures).
(17) Intermolecular contacts occur in both oligomers in the minor groove: in the B form through twisted guanine-guanine hydrogen bonding, and in the Z form through base-base stacking and the water network.
(18) Equilibrium-partitioning measurements indicate that the relative affinities of different probes for PC-rich vesicles, in competition with HODMA or DOTAP vesicles, increase with increasing hydrogen-bonding capacity of the probe headgroup in the order PC less than N,N-dimethyl PE less than N-methyl PE less than PE approximately phosphatidyl-2-amino-1-propanol.
(19) When tissue metabolism was irreversibly inhibited by exposure to formaldehyde, hydrogen ion concentration and pCO2 were significantly decreased in the mucosal side of the chamber compared with the viable gall bladder.
(20) Based on the refined atomic coordinates of the tRNAphe in the orthorhombic crystal, on the recent advances in the distance dependence of the ring-current magnetic field effects and on the adopted values for the isolated hydrogen-bonded NH resonances, a computed spectrum consisting of 23 protons was constructed.
Tartar
Definition:
(n.) A reddish crust or sediment in wine casks, consisting essentially of crude cream of tartar, and used in marking pure cream of tartar, tartaric acid, potassium carbonate, black flux, etc., and, in dyeing, as a mordant for woolen goods; -- called also argol, wine stone, etc.
(n.) A correction which often incrusts the teeth, consisting of salivary mucus, animal matter, and phosphate of lime.
(n.) A native or inhabitant of Tartary in Asia; a member of any one of numerous tribes, chiefly Moslem, of Turkish origin, inhabiting the Russian Europe; -- written also, more correctly but less usually, Tatar.
(n.) A person of a keen, irritable temper.
(a.) Of or pertaining to Tartary in Asia, or the Tartars.
(n.) See Tartarus.
Example Sentences:
(1) Tartaric acid-evoked contractions of the rat isolated fundus could not be antagonized by atropine sulphate or methysergide hydrogen maleate, but were partially reduced by mepyramine hydrochloride.
(2) Maleic acid, malonic acid, oxalic acid, and L-(+)-tartaric acid, as well as other Krebs cycle acids such as citric and isocitric acids, were not accepted by the malate transport system.
(3) Tartar formed when different tooth pastes are used may exhibit different characteristics; 2.
(4) An investigation on the mechanism of action of bilharcid and tartar-emetic produced the following results.
(5) Disuccinimidyl tartarate crosslinking of 35S-labeled IL-5 to the receptors on the T88-M and lipopolysaccharide-stimulated BCL1-B20 cells revealed two major 35S-labeled components of Mr 92,500 and Mr 160,000, even when the binding of 35S-labeled IL-5 was carried out under high-affinity conditions (100 pM 35S-labeled IL-5).
(6) The needs for treatment of parodontal diseases in these 12-year-old children were as follows: 81.1% required improved oral hygiene, 17.8% required also tartar removal.
(7) The Tartars, he said, were back where they belonged – an assurance those with longer memories may find alarming.
(8) Phosphatidylcholine vesicles are permeable to tempotartrate, a spin-label derivative of tartaric acid.
(9) (+)-Tartaric acid is incorporated into glass-ionomer dental cements to control the setting characteristics.
(10) Vance Tartar, although he worked with a genetically undomesticated organism (Stentor coeruleus), provided early evidence for the crucial role of clonally propagated features of the cell cortex.
(11) If you forgo alcohol, incidentally, you could eat one of a handful of the main courses which come in just under £10, such as a special of smoked haddock with summer vegetables, soft poached egg and herb velouté, or the homemade fish fingers with salad and tartare sauce.
(12) In a three month double-blind clinical trial, a tartar control dentifrice formulation containing soluble pyrophosphates was compared to a placebo formula.
(13) The ether eluate is extracted with tartaric acid solution.
(14) After incubation in medium containing 50 mM L(+)-tartaric acid, osteoclasts and chondroclasts were heavily stained with reaction product.
(15) Four formulations of toothpastes were assessed: (A) control-low flavor with no tartar control; (B) medium flavoring with medium tartar control; (C) high flavoring with medium tartar control; and (D) medium flavoring with no tartar control.
(16) The inhibitory activity resided in the less soluble salt formed with the D-tartaric acid compound.
(17) Marcus is totally, completely, 100% not guilty, but the trauma of finding family tartare strewn around his house has inspired him to prove his innocence via moves that range from "violent shouting", "lying down in puddles covered in his wife's blood" and "escaping from police custody to run around Manchester with his hood up, punching everyone".
(18) Similar results were obtained by using various diols (arabinose, cellobiose, FAD, fructose, glyceraldehyde, ribose, and tartaric acid), alpha-hydroxycarboxylic acids, and glutathione.
(19) After the public recognition of the dental plaque as the primary etiological factor for the diseases of gingiva and periodontium, the tartar is the object of comparatively small number of studies.
(20) Cough threshold to inhaled tartaric acid was measured in 33 men and 29 women.